Introduce AsyncStream for tests to use to prove they're using async versions. Knowns: detection and small reads aren't async

Fix DivideByZeroException when compressing empty files with BZip2

.config/dotnet-tools.json

@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "csharpier": {
+      "version": "1.2.1",
+      "commands": [
+        "csharpier"
+      ],
+      "rollForward": false
+    }
+  }
+}

.copilot-agent.yml

@@ -0,0 +1,7 @@
+enabled: true
+agent:
+  name: copilot-coding-agent
+  allow:
+    - paths: ["src/**/*", "tests/**/*", "README.md", "AGENTS.md"]
+      actions: ["create", "modify"]
+  require_review_before_merge: true

.editorconfig

@@ -0,0 +1,568 @@
+# Version: 2.0.1 (Using https://semver.org/)
+# Updated: 2020-12-11
+# See https://github.com/RehanSaeed/EditorConfig/releases for release notes.
+# See https://github.com/RehanSaeed/EditorConfig for updates to this file.
+# See http://EditorConfig.org for more information about .editorconfig files.
+
+##########################################
+# Common Settings
+##########################################
+
+# This file is the top-most EditorConfig file
+root = true
+
+# All Files
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+##########################################
+# File Extension Settings
+##########################################
+
+# Visual Studio Solution Files
+[*.sln]
+indent_style = tab
+
+# Visual Studio XML Project Files
+[*.{csproj,vbproj,vcxproj.filters,proj,projitems,shproj}]
+indent_size = 2
+
+# XML Configuration Files
+[*.{xml,config,props,targets,nuspec,resx,ruleset,vsixmanifest,vsct}]
+indent_size = 2
+
+# JSON Files
+[*.{json,json5,webmanifest}]
+indent_size = 2
+
+# YAML Files
+[*.{yml,yaml}]
+indent_size = 2
+
+# Markdown Files
+[*.md]
+trim_trailing_whitespace = false
+
+# Web Files
+[*.{htm,html,js,jsm,ts,tsx,css,sass,scss,less,svg,vue}]
+indent_size = 2
+
+# Batch Files
+[*.{cmd,bat}]
+end_of_line = crlf
+
+# Bash Files
+[*.sh]
+end_of_line = lf
+
+# Makefiles
+[Makefile]
+indent_style = tab
+
+##########################################
+# Default .NET Code Style Severities
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/configuration-options#scope
+##########################################
+
+[*.{cs,csx,cake,vb,vbx}]
+# Default Severity for all .NET Code Style rules below
+dotnet_analyzer_diagnostic.severity = silent
+
+##########################################
+# File Header (Uncomment to support file headers)
+# https://docs.microsoft.com/visualstudio/ide/reference/add-file-header
+##########################################
+
+# [*.{cs,csx,cake,vb,vbx}]
+# file_header_template = <copyright file="{fileName}" company="PROJECT-AUTHOR">\n© PROJECT-AUTHOR\n</copyright>
+
+# SA1636: File header copyright text should match
+# Justification: .editorconfig supports file headers. If this is changed to a value other than "none", a stylecop.json file will need to added to the project.
+# dotnet_diagnostic.SA1636.severity = none
+
+##########################################
+# .NET Language Conventions
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions
+##########################################
+
+# .NET Code Style Settings
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#net-code-style-settings
+[*.{cs,csx,cake,vb,vbx}]
+# "this." and "Me." qualifiers
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#this-and-me
+#dotnet_style_qualification_for_field = true:warning
+#dotnet_style_qualification_for_property = true:warning
+#dotnet_style_qualification_for_method = true:warning
+#dotnet_style_qualification_for_event = true:warning
+# Language keywords instead of framework type names for type references
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#language-keywords
+dotnet_style_predefined_type_for_locals_parameters_members = true:warning
+dotnet_style_predefined_type_for_member_access = true:warning
+# Modifier preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#normalize-modifiers
+dotnet_style_require_accessibility_modifiers = always:warning
+csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:warning
+visual_basic_preferred_modifier_order = Partial,Default,Private,Protected,Public,Friend,NotOverridable,Overridable,MustOverride,Overloads,Overrides,MustInherit,NotInheritable,Static,Shared,Shadows,ReadOnly,WriteOnly,Dim,Const,WithEvents,Widening,Narrowing,Custom,Async:warning
+dotnet_style_readonly_field = true:warning
+# Parentheses preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#parentheses-preferences
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:warning
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:warning
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:warning
+dotnet_style_parentheses_in_other_operators = always_for_clarity:suggestion
+# Expression-level preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#expression-level-preferences
+dotnet_style_object_initializer = true:warning
+dotnet_style_collection_initializer = true:warning
+dotnet_style_explicit_tuple_names = true:warning
+dotnet_style_prefer_inferred_tuple_names = true:warning
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:warning
+dotnet_style_prefer_auto_properties = true:warning
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:warning
+dotnet_style_prefer_conditional_expression_over_assignment = false:suggestion
+dotnet_diagnostic.IDE0045.severity = suggestion
+dotnet_style_prefer_conditional_expression_over_return = false:suggestion
+dotnet_diagnostic.IDE0046.severity = suggestion
+dotnet_style_prefer_compound_assignment = true:warning
+# Null-checking preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#null-checking-preferences
+dotnet_style_coalesce_expression = true:warning
+dotnet_style_null_propagation = true:warning
+# Parameter preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#parameter-preferences
+dotnet_code_quality_unused_parameters = all:warning
+# More style options (Undocumented)
+# https://github.com/MicrosoftDocs/visualstudio-docs/issues/3641
+dotnet_style_operator_placement_when_wrapping = end_of_line
+# https://github.com/dotnet/roslyn/pull/40070
+dotnet_style_prefer_simplified_interpolation = true:warning
+
+# C# Code Style Settings
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#c-code-style-settings
+[*.{cs,csx,cake}]
+# Implicit and explicit types
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#implicit-and-explicit-types
+csharp_style_var_for_built_in_types = true:warning
+csharp_style_var_when_type_is_apparent = true:warning
+csharp_style_var_elsewhere = true:warning
+# Expression-bodied members
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#expression-bodied-members
+csharp_style_expression_bodied_methods = true:warning
+csharp_style_expression_bodied_constructors = true:warning
+csharp_style_expression_bodied_operators = true:warning
+csharp_style_expression_bodied_properties = true:warning
+csharp_style_expression_bodied_indexers = true:warning
+csharp_style_expression_bodied_accessors = true:warning
+csharp_style_expression_bodied_lambdas = true:warning
+csharp_style_expression_bodied_local_functions = true:warning
+# Pattern matching
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#pattern-matching
+csharp_style_pattern_matching_over_is_with_cast_check = true:warning
+csharp_style_pattern_matching_over_as_with_null_check = true:warning
+# Inlined variable declarations
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#inlined-variable-declarations
+csharp_style_inlined_variable_declaration = true:warning
+# Expression-level preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#expression-level-preferences
+csharp_prefer_simple_default_expression = true:warning
+# "Null" checking preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#c-null-checking-preferences
+csharp_style_throw_expression = true:warning
+csharp_style_conditional_delegate_call = true:warning
+# Code block preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#code-block-preferences
+csharp_prefer_braces = true:warning
+# Unused value preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#unused-value-preferences
+csharp_style_unused_value_expression_statement_preference = discard_variable:suggestion
+dotnet_diagnostic.IDE0058.severity = suggestion
+csharp_style_unused_value_assignment_preference = discard_variable:suggestion
+dotnet_diagnostic.IDE0059.severity = suggestion
+# Index and range preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#index-and-range-preferences
+csharp_style_prefer_index_operator = true:warning
+csharp_style_prefer_range_operator = true:warning
+# Miscellaneous preferences
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-language-conventions#miscellaneous-preferences
+csharp_style_deconstructed_variable_declaration = true:warning
+csharp_style_pattern_local_over_anonymous_function = true:warning
+csharp_using_directive_placement = outside_namespace:warning
+csharp_prefer_static_local_function = true:warning
+csharp_prefer_simple_using_statement = true:suggestion
+dotnet_diagnostic.IDE0063.severity = suggestion
+
+##########################################
+# .NET Formatting Conventions
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-code-style-settings-reference#formatting-conventions
+##########################################
+
+# Organize usings
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#organize-using-directives
+dotnet_sort_system_directives_first = true
+# Newline options
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#new-line-options
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_between_query_expression_clauses = true
+# Indentation options
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#indentation-options
+csharp_indent_case_contents = true
+csharp_indent_switch_labels = true
+csharp_indent_labels = no_change
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents_when_block = false
+# Spacing options
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#spacing-options
+csharp_space_after_cast = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_between_parentheses = false
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_declaration_name_and_open_parenthesis = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_after_comma = true
+csharp_space_before_comma = false
+csharp_space_after_dot = false
+csharp_space_before_dot = false
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_around_declaration_statements = false
+csharp_space_before_open_square_brackets = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_between_square_brackets = false
+# Wrapping options
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#wrap-options
+csharp_preserve_single_line_statements = false
+csharp_preserve_single_line_blocks = true
+
+csharp_style_namespace_declarations = file_scoped
+
+##########################################
+# .NET Naming Conventions
+# https://docs.microsoft.com/visualstudio/ide/editorconfig-naming-conventions
+##########################################
+
+[*.{cs,csx,cake,vb,vbx}]
+dotnet_diagnostic.CA1000.severity = suggestion
+dotnet_diagnostic.CA1001.severity = error
+dotnet_diagnostic.CA1018.severity = error
+dotnet_diagnostic.CA1036.severity = silent
+dotnet_diagnostic.CA1051.severity = suggestion
+dotnet_diagnostic.CA1068.severity = error
+dotnet_diagnostic.CA1069.severity = error
+dotnet_diagnostic.CA1304.severity = error
+dotnet_diagnostic.CA1305.severity = suggestion
+dotnet_diagnostic.CA1307.severity = suggestion
+dotnet_diagnostic.CA1309.severity = suggestion
+dotnet_diagnostic.CA1310.severity = error
+dotnet_diagnostic.CA1507.severity = suggestion
+dotnet_diagnostic.CA1513.severity = suggestion
+dotnet_diagnostic.CA1707.severity = suggestion
+dotnet_diagnostic.CA1708.severity = suggestion
+dotnet_diagnostic.CA1711.severity = suggestion
+dotnet_diagnostic.CA1716.severity = suggestion
+dotnet_diagnostic.CA1720.severity = suggestion
+dotnet_diagnostic.CA1725.severity = suggestion
+dotnet_diagnostic.CA1805.severity = suggestion
+dotnet_diagnostic.CA1816.severity = suggestion
+dotnet_diagnostic.CA1822.severity = suggestion
+dotnet_diagnostic.CA1825.severity = error
+dotnet_diagnostic.CA1826.severity = silent
+dotnet_diagnostic.CA1827.severity = error
+dotnet_diagnostic.CA1829.severity = suggestion
+dotnet_diagnostic.CA1834.severity = error
+dotnet_diagnostic.CA1845.severity = suggestion
+dotnet_diagnostic.CA1848.severity = suggestion
+dotnet_diagnostic.CA1852.severity = suggestion
+dotnet_diagnostic.CA1860.severity = silent
+dotnet_diagnostic.CA2016.severity = suggestion
+dotnet_diagnostic.CA2201.severity = error
+dotnet_diagnostic.CA2206.severity = error
+dotnet_diagnostic.CA2208.severity = error
+dotnet_diagnostic.CA2211.severity = error
+dotnet_diagnostic.CA2249.severity = error
+dotnet_diagnostic.CA2251.severity = error
+dotnet_diagnostic.CA2252.severity = none
+dotnet_diagnostic.CA2254.severity = suggestion
+
+dotnet_diagnostic.CS0169.severity = error
+dotnet_diagnostic.CS0219.severity = error
+dotnet_diagnostic.CS0649.severity = suggestion
+dotnet_diagnostic.CS1998.severity = error
+dotnet_diagnostic.CS8602.severity = error
+dotnet_diagnostic.CS8604.severity = error
+dotnet_diagnostic.CS8618.severity = error
+dotnet_diagnostic.CS0618.severity = suggestion
+dotnet_diagnostic.CS1998.severity = error
+dotnet_diagnostic.CS4014.severity = error
+dotnet_diagnostic.CS8600.severity = error
+dotnet_diagnostic.CS8603.severity = error
+dotnet_diagnostic.CS8625.severity = error
+
+dotnet_diagnostic.BL0005.severity = suggestion
+
+dotnet_diagnostic.MVC1000.severity = suggestion
+
+dotnet_diagnostic.RZ10012.severity = error
+
+dotnet_diagnostic.IDE0004.severity = error # redundant cast
+dotnet_diagnostic.IDE0005.severity = suggestion
+dotnet_diagnostic.IDE0007.severity = error # Use var
+dotnet_diagnostic.IDE0011.severity = error # Use braces on if statements
+dotnet_diagnostic.IDE0010.severity = silent # populate switch
+dotnet_diagnostic.IDE0017.severity = suggestion # initialization can be simplified
+dotnet_diagnostic.IDE0021.severity = silent # expression body for constructors
+dotnet_diagnostic.IDE0022.severity = silent # expression body for methods
+dotnet_diagnostic.IDE0023.severity = suggestion # use expression body for operators
+dotnet_diagnostic.IDE0024.severity = silent # expression body for operators
+dotnet_diagnostic.IDE0025.severity = suggestion # use expression body for properties
+dotnet_diagnostic.IDE0027.severity = suggestion # Use expression body for accessors
+dotnet_diagnostic.IDE0028.severity = silent # expression body for accessors
+dotnet_diagnostic.IDE0032.severity = suggestion # Use auto property
+dotnet_diagnostic.IDE0033.severity = error # prefer tuple name
+dotnet_diagnostic.IDE0037.severity = suggestion # simplify anonymous type
+dotnet_diagnostic.IDE0040.severity = error # modifiers required
+dotnet_diagnostic.IDE0041.severity = error # simplify null
+dotnet_diagnostic.IDE0042.severity = error # deconstruct variable
+dotnet_diagnostic.IDE0044.severity = suggestion # make field only when possible
+dotnet_diagnostic.IDE0047.severity = suggestion # parameter name
+dotnet_diagnostic.IDE0051.severity = error # unused field
+dotnet_diagnostic.IDE0052.severity = error # unused member
+dotnet_diagnostic.IDE0053.severity = suggestion # lambda not needed
+dotnet_diagnostic.IDE0055.severity = suggestion # Fix formatting
+dotnet_diagnostic.IDE0057.severity = suggestion # substring can be simplified
+dotnet_diagnostic.IDE0060.severity = suggestion # unused parameters
+dotnet_diagnostic.IDE0061.severity = suggestion # local expression body
+dotnet_diagnostic.IDE0062.severity = suggestion # local to static
+dotnet_diagnostic.IDE0063.severity = error # simplify using
+dotnet_diagnostic.IDE0066.severity = suggestion # switch expression
+dotnet_diagnostic.IDE0072.severity = suggestion # Populate switch - forces population of all cases even when default specified
+dotnet_diagnostic.IDE0078.severity = suggestion # use pattern matching
+dotnet_diagnostic.IDE0090.severity = suggestion # new can be simplified
+dotnet_diagnostic.IDE0130.severity = suggestion # namespace folder structure
+dotnet_diagnostic.IDE0160.severity = silent # Use block namespaces ARE NOT required
+dotnet_diagnostic.IDE0161.severity = error # Please use file namespaces
+dotnet_diagnostic.IDE0200.severity = suggestion # lambda not needed
+dotnet_diagnostic.IDE1006.severity = suggestion # Naming rule violation: These words cannot contain lower case characters
+dotnet_diagnostic.IDE0260.severity = suggestion # Use pattern matching
+dotnet_diagnostic.IDE0270.severity = suggestion # Null check simplifcation
+dotnet_diagnostic.IDE0290.severity = error # Primary Constructor
+dotnet_diagnostic.IDE0300.severity = suggestion # Collection
+dotnet_diagnostic.IDE0305.severity = suggestion # Collection ToList
+
+dotnet_diagnostic.NX0001.severity = error
+dotnet_diagnostic.NX0002.severity = silent
+dotnet_diagnostic.NX0003.severity = silent
+
+##########################################
+# Styles
+##########################################
+
+# camel_case_style - Define the camelCase style
+dotnet_naming_style.camel_case_style.capitalization = camel_case
+# pascal_case_style - Define the PascalCase style
+dotnet_naming_style.pascal_case_style.capitalization = pascal_case
+# constant_case - Define the CONSTANT_CASE style
+dotnet_naming_style.constant_case.capitalization = all_upper
+dotnet_naming_style.constant_case.word_separator = _
+# first_upper_style - The first character must start with an upper-case character
+dotnet_naming_style.first_upper_style.capitalization = first_word_upper
+# prefix_interface_with_i_style - Interfaces must be PascalCase and the first character of an interface must be an 'I'
+dotnet_naming_style.prefix_interface_with_i_style.capitalization = pascal_case
+dotnet_naming_style.prefix_interface_with_i_style.required_prefix = I
+# prefix_type_parameters_with_t_style - Generic Type Parameters must be PascalCase and the first character must be a 'T'
+dotnet_naming_style.prefix_type_parameters_with_t_style.capitalization = pascal_case
+dotnet_naming_style.prefix_type_parameters_with_t_style.required_prefix = T
+# disallowed_style - Anything that has this style applied is marked as disallowed
+dotnet_naming_style.disallowed_style.capitalization  = pascal_case
+dotnet_naming_style.disallowed_style.required_prefix = ____RULE_VIOLATION____
+dotnet_naming_style.disallowed_style.required_suffix = ____RULE_VIOLATION____
+# internal_error_style - This style should never occur... if it does, it indicates a bug in file or in the parser using the file
+dotnet_naming_style.internal_error_style.capitalization  = pascal_case
+dotnet_naming_style.internal_error_style.required_prefix = ____INTERNAL_ERROR____
+dotnet_naming_style.internal_error_style.required_suffix = ____INTERNAL_ERROR____
+
+# prefix_interface_with_i_style - Interfaces must be PascalCase and the first character of an interface must be an 'I'
+dotnet_naming_style.underscore_camel_case_style.capitalization = camel_case
+dotnet_naming_style.underscore_camel_case_style.required_prefix = _
+
+##########################################
+# .NET Design Guideline Field Naming Rules
+# Naming rules for fields follow the .NET Framework design guidelines
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/index
+##########################################
+
+# All public/protected/protected_internal constant fields must be constant_case
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/field
+dotnet_naming_symbols.public_protected_constant_fields_group.applicable_accessibilities = public, protected, protected_internal
+dotnet_naming_symbols.public_protected_constant_fields_group.required_modifiers         = const
+dotnet_naming_symbols.public_protected_constant_fields_group.applicable_kinds           = field
+dotnet_naming_rule.public_protected_constant_fields_must_be_pascal_case_rule.symbols    = public_protected_constant_fields_group
+dotnet_naming_rule.public_protected_constant_fields_must_be_pascal_case_rule.style      = constant_case
+dotnet_naming_rule.public_protected_constant_fields_must_be_pascal_case_rule.severity   = warning
+
+# All public/protected/protected_internal static readonly fields must be constant_case
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/field
+dotnet_naming_symbols.public_protected_static_readonly_fields_group.applicable_accessibilities = public, protected, protected_internal
+dotnet_naming_symbols.public_protected_static_readonly_fields_group.required_modifiers         = static, readonly
+dotnet_naming_symbols.public_protected_static_readonly_fields_group.applicable_kinds           = field
+dotnet_naming_rule.public_protected_static_readonly_fields_must_be_pascal_case_rule.symbols    = public_protected_static_readonly_fields_group
+dotnet_naming_rule.public_protected_static_readonly_fields_must_be_pascal_case_rule.style      = constant_case
+dotnet_naming_rule.public_protected_static_readonly_fields_must_be_pascal_case_rule.severity   = warning
+
+# No other public/protected/protected_internal fields are allowed
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/field
+dotnet_naming_symbols.other_public_protected_fields_group.applicable_accessibilities = public, protected, protected_internal
+dotnet_naming_symbols.other_public_protected_fields_group.applicable_kinds           = field
+dotnet_naming_rule.other_public_protected_fields_disallowed_rule.symbols             = other_public_protected_fields_group
+dotnet_naming_rule.other_public_protected_fields_disallowed_rule.style               = disallowed_style
+dotnet_naming_rule.other_public_protected_fields_disallowed_rule.severity            = error
+
+##########################################
+# StyleCop Field Naming Rules
+# Naming rules for fields follow the StyleCop analyzers
+# This does not override any rules using disallowed_style above
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers
+##########################################
+
+# All constant fields must be constant_case
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1303.md
+dotnet_naming_symbols.stylecop_constant_fields_group.applicable_accessibilities = public, internal, protected_internal, protected, private_protected, private
+dotnet_naming_symbols.stylecop_constant_fields_group.required_modifiers         = const
+dotnet_naming_symbols.stylecop_constant_fields_group.applicable_kinds           = field
+dotnet_naming_rule.stylecop_constant_fields_must_be_pascal_case_rule.symbols    = stylecop_constant_fields_group
+dotnet_naming_rule.stylecop_constant_fields_must_be_pascal_case_rule.style      = constant_case
+dotnet_naming_rule.stylecop_constant_fields_must_be_pascal_case_rule.severity   = warning
+
+# All static readonly fields must be constant_case
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1311.md
+dotnet_naming_symbols.stylecop_static_readonly_fields_group.applicable_accessibilities = public, internal, protected_internal, protected, private_protected, private
+dotnet_naming_symbols.stylecop_static_readonly_fields_group.required_modifiers         = static, readonly
+dotnet_naming_symbols.stylecop_static_readonly_fields_group.applicable_kinds           = field
+dotnet_naming_rule.stylecop_static_readonly_fields_must_be_pascal_case_rule.symbols    = stylecop_static_readonly_fields_group
+dotnet_naming_rule.stylecop_static_readonly_fields_must_be_pascal_case_rule.style      = constant_case
+dotnet_naming_rule.stylecop_static_readonly_fields_must_be_pascal_case_rule.severity   = warning
+
+# No non-private instance fields are allowed
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1401.md
+dotnet_naming_symbols.stylecop_fields_must_be_private_group.applicable_accessibilities = public, internal, protected_internal, protected, private_protected
+dotnet_naming_symbols.stylecop_fields_must_be_private_group.applicable_kinds           = field
+dotnet_naming_rule.stylecop_instance_fields_must_be_private_rule.symbols               = stylecop_fields_must_be_private_group
+dotnet_naming_rule.stylecop_instance_fields_must_be_private_rule.style                 = disallowed_style
+dotnet_naming_rule.stylecop_instance_fields_must_be_private_rule.severity              = error
+
+# Private fields must be camelCase
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1306.md
+dotnet_naming_symbols.stylecop_private_fields_group.applicable_accessibilities = private
+dotnet_naming_symbols.stylecop_private_fields_group.applicable_kinds           = field
+dotnet_naming_rule.stylecop_private_fields_must_be_camel_case_rule.symbols     = stylecop_private_fields_group
+dotnet_naming_rule.stylecop_private_fields_must_be_camel_case_rule.style       = underscore_camel_case_style
+dotnet_naming_rule.stylecop_private_fields_must_be_camel_case_rule.severity    = warning
+
+# Local variables must be camelCase
+# https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1312.md
+dotnet_naming_symbols.stylecop_local_fields_group.applicable_accessibilities = local
+dotnet_naming_symbols.stylecop_local_fields_group.applicable_kinds           = local
+dotnet_naming_rule.stylecop_local_fields_must_be_camel_case_rule.symbols     = stylecop_local_fields_group
+dotnet_naming_rule.stylecop_local_fields_must_be_camel_case_rule.style       = camel_case_style
+dotnet_naming_rule.stylecop_local_fields_must_be_camel_case_rule.severity    = warning
+
+# This rule should never fire.  However, it's included for at least two purposes:
+# First, it helps to understand, reason about, and root-case certain types of issues, such as bugs in .editorconfig parsers.
+# Second, it helps to raise immediate awareness if a new field type is added (as occurred recently in C#).
+dotnet_naming_symbols.sanity_check_uncovered_field_case_group.applicable_accessibilities = *
+dotnet_naming_symbols.sanity_check_uncovered_field_case_group.applicable_kinds           = field
+dotnet_naming_rule.sanity_check_uncovered_field_case_rule.symbols  = sanity_check_uncovered_field_case_group
+dotnet_naming_rule.sanity_check_uncovered_field_case_rule.style    = internal_error_style
+dotnet_naming_rule.sanity_check_uncovered_field_case_rule.severity = error
+
+
+##########################################
+# Other Naming Rules
+##########################################
+
+# All of the following must be PascalCase:
+# - Namespaces
+#   https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-namespaces
+#   https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1300.md
+# - Classes and Enumerations
+#   https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-classes-structs-and-interfaces
+#   https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1300.md
+# - Delegates
+#   https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-classes-structs-and-interfaces#names-of-common-types
+# - Constructors, Properties, Events, Methods
+#   https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-type-members
+dotnet_naming_symbols.element_group.applicable_kinds = namespace, class, enum, struct, delegate, event, method, property
+dotnet_naming_rule.element_rule.symbols              = element_group
+dotnet_naming_rule.element_rule.style                = pascal_case_style
+dotnet_naming_rule.element_rule.severity             = warning
+
+# Interfaces use PascalCase and are prefixed with uppercase 'I'
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-classes-structs-and-interfaces
+dotnet_naming_symbols.interface_group.applicable_kinds = interface
+dotnet_naming_rule.interface_rule.symbols              = interface_group
+dotnet_naming_rule.interface_rule.style                = prefix_interface_with_i_style
+dotnet_naming_rule.interface_rule.severity             = warning
+
+# Generics Type Parameters use PascalCase and are prefixed with uppercase 'T'
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/names-of-classes-structs-and-interfaces
+dotnet_naming_symbols.type_parameter_group.applicable_kinds = type_parameter
+dotnet_naming_rule.type_parameter_rule.symbols              = type_parameter_group
+dotnet_naming_rule.type_parameter_rule.style                = prefix_type_parameters_with_t_style
+dotnet_naming_rule.type_parameter_rule.severity             = warning
+
+# Function parameters use camelCase
+# https://docs.microsoft.com/dotnet/standard/design-guidelines/naming-parameters
+dotnet_naming_symbols.parameters_group.applicable_kinds = parameter
+dotnet_naming_rule.parameters_rule.symbols              = parameters_group
+dotnet_naming_rule.parameters_rule.style                = camel_case_style
+dotnet_naming_rule.parameters_rule.severity             = warning
+
+##########################################
+# License
+##########################################
+# The following applies as to the .editorconfig file ONLY, and is
+# included below for reference, per the requirements of the license
+# corresponding to this .editorconfig file.
+# See: https://github.com/RehanSaeed/EditorConfig
+#
+# MIT License
+#
+# Copyright (c) 2017-2019 Muhammad Rehan Saeed
+# Copyright (c) 2019 Henry Gabryjelski
+#
+# Permission is hereby granted, free of charge, to any
+# person obtaining a copy of this software and associated
+# documentation files (the "Software"), to deal in the
+# Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute,
+# sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject
+# to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+##########################################

.gitattributes

@@ -2,4 +2,4 @@
 * text=auto
 
 # need original files to be windows
-test/TestArchives/Original/*.txt eol=crlf
+*.txt text eol=crlf

.github/COPILOT_AGENT_README.md

@@ -0,0 +1,15 @@
+# Copilot Coding Agent Configuration
+
+This repository includes a minimal opt-in configuration and CI workflow to allow the GitHub Copilot coding agent to open and validate PRs.
+
+- .copilot-agent.yml: opt-in config for automated agents
+- .github/agents/copilot-agent.yml: detailed agent policy configuration
+- .github/workflows/dotnetcore.yml: CI runs on PRs touching the solution, source, or tests to validate changes
+- AGENTS.md: general instructions for Copilot coding agent with project-specific guidelines
+
+Maintainers can adjust the allowed paths or disable the agent by editing or removing .copilot-agent.yml.
+
+Notes:
+- The agent can create, modify, and delete files within the allowed paths (src, tests, README.md, AGENTS.md)
+- All changes require review before merge
+- If build/test paths are different, update the workflow accordingly; this workflow targets SharpCompress.sln and the SharpCompress.Test test project.

.github/agents/copilot-agent.yml

@@ -0,0 +1,17 @@
+enabled: true
+agent:
+  name: copilot-coding-agent
+  allow:
+    - paths: ["src/**/*", "tests/**/*", "README.md", "AGENTS.md"]
+      actions: ["create", "modify", "delete"]
+  require_review_before_merge: true
+  required_approvals: 1
+  allowed_merge_strategies:
+    - squash
+    - merge
+  auto_merge_on_green: false
+  run_workflows: true
+notes: |
+  - This manifest expresses the policy for the Copilot coding agent in this repository.
+  - It does NOT install or authorize the agent; a repository admin must install the Copilot coding agent app and grant the repository the necessary permissions (contents: write, pull_requests: write, checks: write, actions: write/read, issues: write) to allow the agent to act.
+  - Keep allow paths narrow and prefer require_review_before_merge during initial rollout.

.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/" 
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "nuget"
+    directory: "/"    # change to "/src/YourProject" if .csproj files are in subfolders
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 5
+    # optional: target-branch: "master"

.github/workflows/dotnetcore.yml

@@ -0,0 +1,25 @@
+name: SharpCompress
+on:
+  push:
+    branches:
+      - 'master'
+  pull_request:
+    types: [ opened, synchronize, reopened, ready_for_review ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest]
+
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 8.0.x
+    - run: dotnet run --project build/build.csproj
+    - uses: actions/upload-artifact@v5
+      with:
+        name: ${{ matrix.os }}-sharpcompress.nupkg
+        path: artifacts/*

.gitignore

@@ -10,7 +10,13 @@ TestResults/
 *.nupkg
 packages/*/
 project.lock.json
-test/TestArchives/Scratch
+tests/TestArchives/Scratch
+tests/TestArchives/*/Scratch
+tests/TestArchives/*/Scratch2
 .vs
 tools
 .vscode
+.idea/
+
+.DS_Store
+*.snupkg

AGENTS.md

@@ -0,0 +1,118 @@
+---
+description: 'Guidelines for building SharpCompress - A C# compression library'
+applyTo: '**/*.cs'
+---
+
+# SharpCompress Development
+
+## About SharpCompress
+SharpCompress is a pure C# compression library supporting multiple archive formats (Zip, Tar, GZip, BZip2, 7Zip, Rar, LZip, XZ, ZStandard) for .NET Framework 4.62, .NET Standard 2.1, .NET 6.0, and .NET 8.0. The library provides both seekable Archive APIs and forward-only Reader/Writer APIs for streaming scenarios.
+
+## C# Instructions
+- Always use the latest version C#, currently C# 13 features.
+- Write clear and concise comments for each function.
+- Follow the existing code style and patterns in the codebase.
+
+## General Instructions
+- Make only high confidence suggestions when reviewing code changes.
+- Write code with good maintainability practices, including comments on why certain design decisions were made.
+- Handle edge cases and write clear exception handling.
+- For libraries or external dependencies, mention their usage and purpose in comments.
+- Preserve backward compatibility when making changes to public APIs.
+
+## Naming Conventions
+
+- Follow PascalCase for component names, method names, and public members.
+- Use camelCase for private fields and local variables.
+- Prefix interface names with "I" (e.g., IUserService).
+
+## Code Formatting
+
+- Use CSharpier for code formatting to ensure consistent style across the project
+- CSharpier is configured as a local tool in `.config/dotnet-tools.json`
+- Restore tools with: `dotnet tool restore`
+- Format files from the project root with: `dotnet csharpier .`
+- **Run `dotnet csharpier .` from the project root after making code changes before committing**
+- Configure your IDE to format on save using CSharpier for the best experience
+- The project also uses `.editorconfig` for editor settings (indentation, encoding, etc.)
+- Let CSharpier handle code style while `.editorconfig` handles editor behavior
+
+## Project Setup and Structure
+
+- The project targets multiple frameworks: .NET Framework 4.62, .NET Standard 2.1, .NET 6.0, and .NET 8.0
+- Main library is in `src/SharpCompress/`
+- Tests are in `tests/SharpCompress.Test/`
+- Performance tests are in `tests/SharpCompress.Performance/`
+- Test archives are in `tests/TestArchives/`
+- Build project is in `build/`
+- Use `dotnet build` to build the solution
+- Use `dotnet test` to run tests
+- Solution file: `SharpCompress.sln`
+
+## Nullable Reference Types
+
+- Declare variables non-nullable, and check for `null` at entry points.
+- Always use `is null` or `is not null` instead of `== null` or `!= null`.
+- Trust the C# null annotations and don't add null checks when the type system says a value cannot be null.
+
+## SharpCompress-Specific Guidelines
+
+### Supported Formats
+SharpCompress supports multiple archive and compression formats:
+- **Archive Formats**: Zip, Tar, 7Zip, Rar (read-only)
+- **Compression**: DEFLATE, BZip2, LZMA/LZMA2, PPMd, ZStandard (decompress only), Deflate64 (decompress only)
+- **Combined Formats**: Tar.GZip, Tar.BZip2, Tar.LZip, Tar.XZ, Tar.ZStandard
+- See FORMATS.md for complete format support matrix
+
+### Stream Handling Rules
+- **Disposal**: As of version 0.21, SharpCompress closes wrapped streams by default
+- Use `ReaderOptions` or `WriterOptions` with `LeaveStreamOpen = true` to control stream disposal
+- Use `NonDisposingStream` wrapper when working with compression streams directly to prevent disposal
+- Always dispose of readers, writers, and archives in `using` blocks
+- For forward-only operations, use Reader/Writer APIs; for random access, use Archive APIs
+
+### Async/Await Patterns
+- All I/O operations support async/await with `CancellationToken`
+- Async methods follow the naming convention: `MethodNameAsync`
+- Key async methods:
+  - `WriteEntryToAsync` - Extract entry asynchronously
+  - `WriteAllToDirectoryAsync` - Extract all entries asynchronously
+  - `WriteAsync` - Write entry asynchronously
+  - `WriteAllAsync` - Write directory asynchronously
+  - `OpenEntryStreamAsync` - Open entry stream asynchronously
+- Always provide `CancellationToken` parameter in async methods
+
+### Archive APIs vs Reader/Writer APIs
+- **Archive API**: Use for random access with seekable streams (e.g., `ZipArchive`, `TarArchive`)
+- **Reader API**: Use for forward-only reading on non-seekable streams (e.g., `ZipReader`, `TarReader`)
+- **Writer API**: Use for forward-only writing on streams (e.g., `ZipWriter`, `TarWriter`)
+- 7Zip only supports Archive API due to format limitations
+
+### Tar-Specific Considerations
+- Tar format requires file size in the header
+- If no size is specified to TarWriter and the stream is not seekable, an exception will be thrown
+- Tar combined with compression (GZip, BZip2, LZip, XZ) is supported
+
+### Zip-Specific Considerations
+- Supports Zip64 for large files (seekable streams only)
+- Supports PKWare and WinZip AES encryption
+- Multiple compression methods: None, Shrink, Reduce, Implode, DEFLATE, Deflate64, BZip2, LZMA, PPMd
+- Encrypted LZMA is not supported
+
+### Performance Considerations
+- For large files, use Reader/Writer APIs with non-seekable streams to avoid loading entire file in memory
+- Leverage async I/O for better scalability
+- Consider compression level trade-offs (speed vs. size)
+- Use appropriate buffer sizes for stream operations
+
+## Testing
+
+- Always include test cases for critical paths of the application.
+- Test with multiple archive formats when making changes to core functionality.
+- Include tests for both Archive and Reader/Writer APIs when applicable.
+- Test async operations with cancellation tokens.
+- Do not emit "Act", "Arrange" or "Assert" comments.
+- Copy existing style in nearby files for test method names and capitalization.
+- Use test archives from `tests/TestArchives` directory for consistency.
+- Test stream disposal and `LeaveStreamOpen` behavior.
+- Test edge cases: empty archives, large files, corrupted archives, encrypted archives.

ASYNC_ANALYSIS.md

@@ -0,0 +1,222 @@
+# Async Method Analysis for SharpCompress Stream Implementations
+
+This document analyzes all Stream implementations in SharpCompress to identify which ones need async method implementations and which tests are missing async versions.
+
+## Stream Implementations Analysis
+
+### Criteria
+- **Needs Async Read**: Has `Read()` implementation but no proper `ReadAsync()` override (or `ReadAsync` just wraps sync)
+- **Needs Async Write**: Has `Write()` implementation but no proper `WriteAsync()` override (or `WriteAsync` just wraps sync)
+
+### ✅ Streams with Proper Async Implementations
+
+| Stream | Location | Read | Write | Notes |
+|--------|----------|------|-------|-------|
+| TarReadOnlySubStream | Common/Tar/TarReadOnlySubStream.cs | ✅ | N/A | Has proper ReadAsync with async stream delegation |
+| EntryStream | Common/EntryStream.cs | ✅ | N/A | Has proper ReadAsync |
+| BZip2Stream | Compressors/BZip2/BZip2Stream.cs | ✅ | ✅ | Delegates to inner stream async methods |
+| XZStream | Compressors/Xz/XZStream.cs | ✅ | N/A | Has proper async implementation |
+| LZipStream | Compressors/LZMA/LZipStream.cs | ✅ | ✅ | Delegates to inner stream async methods |
+| LzmaStream | Compressors/LZMA/LzmaStream.cs | ✅ | ⚠️ | Read has proper async; Write wraps sync |
+| AesDecoderStream | Compressors/LZMA/AesDecoderStream.cs | ✅ | N/A | Has proper async implementation |
+| CrcBuilderStream | Compressors/LZMA/Utilites/CrcBuilderStream.cs | N/A | ✅ | Has proper async write |
+| CrcCheckStream | Compressors/LZMA/Utilites/CrcCheckStream.cs | N/A | ⚠️ | WriteAsync wraps sync |
+| DeflateStream | Compressors/Deflate/DeflateStream.cs | ✅ | ✅ | Delegates to base stream async |
+| ZlibBaseStream | Compressors/Deflate/ZlibBaseStream.cs | ✅ | ✅ | Has proper async implementations |
+| RarStream | Compressors/Rar/RarStream.cs | ✅ | ⚠️ | Read has async; Write wraps sync |
+| RarCrcStream | Compressors/Rar/RarCrcStream.cs | ✅ | N/A | Extends RarStream with async |
+| MultiVolumeReadOnlyStream | Compressors/Rar/MultiVolumeReadOnlyStream.cs | ✅ | N/A | Has proper async read |
+| RarBLAKE2spStream | Compressors/Rar/RarBLAKE2spStream.cs | ✅ | N/A | Has proper async read |
+| Deflate64Stream | Compressors/Deflate64/Deflate64Stream.cs | ✅ | N/A | Has proper async read |
+| ADCStream | Compressors/ADC/ADCStream.cs | ✅ | N/A | Has proper async read |
+| ReadOnlySubStream | IO/ReadOnlySubStream.cs | ✅ | N/A | Has proper async read |
+| SharpCompressStream | IO/SharpCompressStream.cs | ✅ | ✅ | Has proper async implementations |
+
+---
+
+## ❌ Streams Needing Async Implementation
+
+### High Priority - Has Read but no proper ReadAsync
+
+| Stream | Location | Issue | Complexity |
+|--------|----------|-------|------------|
+| **Crc32Stream** | Crypto/Crc32Stream.cs | Has `Write()` but no `WriteAsync` | Low - Just add CRC calculation around async write |
+| **PkwareTraditionalCryptoStream** | Common/Zip/PkwareTraditionalCryptoStream.cs | Has `Read()` and `Write()` but no async versions | Medium - Crypto operations are synchronous, need to buffer async reads |
+| **WinzipAesCryptoStream** | Common/Zip/WinzipAesCryptoStream.cs | Has `Read()` but no `ReadAsync` | Medium - Crypto operations are synchronous, need async stream reads |
+| **CBZip2InputStream** | Compressors/BZip2/CBZip2InputStream.cs | `ReadAsync` wraps sync `ReadByte` loop | High - Core decompression is CPU-bound, but stream reads could be async |
+| **CBZip2OutputStream** | Compressors/BZip2/CBZip2OutputStream.cs | `WriteAsync` wraps sync `WriteByte` loop | High - Core compression is CPU-bound |
+| **Bcj2DecoderStream** | Compressors/LZMA/Bcj2DecoderStream.cs | `ReadAsync` wraps sync - uses iterator/state machine | High - Complex state machine with multiple streams |
+| **PpmdStream** | Compressors/PPMd/PpmdStream.cs | No async at all | Medium - Depends on model decoding |
+| **ShrinkStream** | Compressors/Shrink/ShrinkStream.cs | No async at all | Low - Single-shot decompression |
+| **LzwStream** | Compressors/Lzw/LzwStream.cs | No async at all | Medium - Bit-level operations, but input reads could be async |
+| **ExplodeStream** | Compressors/Explode/ExplodeStream.cs | No async at all | Medium - Similar to LzwStream |
+| **ArcLzwStream** | Compressors/ArcLzw/ArcLzwStream.cs | No async at all | Low - Single-shot decompression |
+| **BufferedSubStream** | IO/BufferedSubStream.cs | No async - uses sync cache refill | Medium - Cache operations could be async |
+
+### Streams Where Async May Not Be Beneficial
+
+| Stream | Location | Reason |
+|--------|----------|--------|
+| ZStandardStream | Compressors/ZStandard/ZStandardStream.cs | Extends ZstdSharp.DecompressionStream - async behavior depends on base class |
+| ReadOnlyStream | Compressors/Xz/ReadOnlyStream.cs | Abstract base - no Read implementation |
+| XZReadOnlyStream | Compressors/Xz/XZReadOnlyStream.cs | Abstract base - no Read implementation |
+| DecoderStream2 | Compressors/LZMA/DecoderStream.cs | Abstract base - no Read implementation |
+
+---
+
+## Detailed Analysis of Streams Needing Work
+
+### 1. Crc32Stream (Low Priority)
+- **Location**: `src/SharpCompress/Crypto/Crc32Stream.cs`
+- **Issue**: Has `Write()` (lines 83-87) but no `WriteAsync`
+- **Solution**: Add `WriteAsync` that calls base stream's `WriteAsync` and then calculates CRC synchronously (CRC is fast)
+
+### 2. PkwareTraditionalCryptoStream (Medium Priority)
+- **Location**: `src/SharpCompress/Common/Zip/PkwareTraditionalCryptoStream.cs`
+- **Issue**: Has `Read()` (lines 69-86) and `Write()` (lines 88-113) but no async versions
+- **Solution**: 
+  - ReadAsync: Read from underlying stream asynchronously, then decrypt synchronously
+  - WriteAsync: Encrypt synchronously, then write asynchronously
+
+### 3. WinzipAesCryptoStream (Medium Priority)
+- **Location**: `src/SharpCompress/Common/Zip/WinzipAesCryptoStream.cs`
+- **Issue**: Has `Read()` (lines 106-123) but no `ReadAsync`
+- **Solution**: Read from stream asynchronously, transform blocks synchronously (crypto is CPU-bound)
+
+### 4. CBZip2InputStream (High Complexity)
+- **Location**: `src/SharpCompress/Compressors/BZip2/CBZip2InputStream.cs`
+- **Issue**: `ReadAsync` (lines 1132-1152) just wraps sync `ReadByte` in a loop
+- **Solution**: Would need significant refactoring to make the bit-reading operations async
+
+### 5. CBZip2OutputStream (High Complexity)
+- **Location**: `src/SharpCompress/Compressors/BZip2/CBZip2OutputStream.cs`
+- **Issue**: `WriteAsync` (lines 2033-2046) wraps sync `WriteByte` loop
+- **Solution**: Would need significant refactoring of compression pipeline
+
+### 6. Bcj2DecoderStream (High Complexity)
+- **Location**: `src/SharpCompress/Compressors/LZMA/Bcj2DecoderStream.cs`
+- **Issue**: Uses iterator pattern (`Run()`) - `ReadAsync` (lines 196-206) just wraps sync
+- **Solution**: Would require rewriting the iterator pattern to support async
+
+### 7. PpmdStream (Medium Priority)
+- **Location**: `src/SharpCompress/Compressors/PPMd/PpmdStream.cs`
+- **Issue**: No async methods at all
+- **Solution**: Add ReadAsync that reads from model decoder asynchronously
+
+### 8. ShrinkStream (Low Priority)
+- **Location**: `src/SharpCompress/Compressors/Shrink/ShrinkStream.cs`
+- **Issue**: No async - does single-shot decompression in Read
+- **Solution**: Could add async wrapper, but single-shot nature limits benefit
+
+### 9. LzwStream (Medium Priority)
+- **Location**: `src/SharpCompress/Compressors/Lzw/LzwStream.cs`
+- **Issue**: No async methods
+- **Solution**: Bit-level operations are sync, but underlying stream reads could be buffered async
+
+### 10. ExplodeStream (Medium Priority)
+- **Location**: `src/SharpCompress/Compressors/Explode/ExplodeStream.cs`
+- **Issue**: No async methods
+- **Solution**: Similar to LzwStream - could async buffer reads from underlying stream
+
+### 11. ArcLzwStream (Low Priority)
+- **Location**: `src/SharpCompress/Compressors/ArcLzw/ArcLzwStream.cs`
+- **Issue**: No async - single-shot decompression
+- **Solution**: Limited benefit due to single-shot nature
+
+### 12. BufferedSubStream (Medium Priority)
+- **Location**: `src/SharpCompress/IO/BufferedSubStream.cs`
+- **Issue**: `RefillCache()` uses sync read
+- **Solution**: Add async cache refill and ReadAsync
+
+---
+
+## Test Analysis - Missing Async Versions
+
+### Tests WITH Async Versions (Good ✅)
+| Sync Test | Async Test |
+|-----------|------------|
+| BZip2ReaderTests | BZip2StreamAsyncTests |
+| TarArchiveTests | TarArchiveAsyncTests |
+| TarReaderTests | TarReaderAsyncTests |
+| TarWriterTests | TarWriterAsyncTests |
+| ZipReaderTests | ZipReaderAsyncTests |
+| ZipWriterTests | ZipWriterAsyncTests |
+| ZipArchiveTests | ZipArchiveAsyncTests |
+| Zip64Tests | Zip64AsyncTests |
+| ZipMemoryArchiveWithCrcTests | ZipMemoryArchiveWithCrcAsyncTests |
+| RarArchiveTests | RarArchiveAsyncTests |
+| RarReaderTests | RarReaderAsyncTests |
+| GZipArchiveTests | GZipArchiveAsyncTests |
+| GZipReaderTests | GZipReaderAsyncTests |
+| GZipWriterTests | GZipWriterAsyncTests |
+| XZStreamTests | XZStreamAsyncTests |
+| XZHeaderTests | XZHeaderAsyncTests |
+| XZIndexTests | XZIndexAsyncTests |
+| XZBlockTests | XZBlockAsyncTests |
+| SharpCompressStreamTest | SharpCompressStreamAsyncTests |
+| RewindableStreamTest | RewindableStreamAsyncTest |
+| LzmaStreamTests | LzmaStreamAsyncTests |
+| ZlibBaseStreamTests | ZLibBaseStreamAsyncTests |
+| ADCTest | AdcAsyncTest |
+
+### Tests WITHOUT Async Versions (Need Work ❌)
+
+| Test File | Location | Priority |
+|-----------|----------|----------|
+| **SevenZipArchiveTests** | SevenZip/SevenZipArchiveTests.cs | High - 7z is commonly used |
+| **ArcReaderTests** | Arc/ArcReaderTests.cs | Low - Less common format |
+| **ArjReaderTests** | Arj/ArjReaderTests.cs | Low - Legacy format |
+| **Crc32Tests** | Xz/Crc32Tests.cs | Low - Utility tests |
+| **Crc64Tests** | Xz/Crc64Tests.cs | Low - Utility tests |
+| **RarCRCTest** | Rar/RarCRCTest.cs | Low - Utility tests |
+| **RarHeaderFactoryTest** | Rar/RarHeaderFactoryTest.cs | Low - Unit tests |
+| **Lzma2Tests** | Xz/Filters/Lzma2Tests.cs | Medium - Filter tests |
+| **BCJTests** | Xz/Filters/BCJTests.cs | Medium - Filter tests |
+| **BranchExecTests** | Filters/BranchExecTests.cs | Low - Filter tests |
+| **ExceptionHierarchyTests** | ExceptionHierarchyTests.cs | N/A - No I/O |
+| **UtilityTests** | UtilityTests.cs | N/A - No I/O |
+| **Zip64VersionConsistencyTests** | Zip/Zip64VersionConsistencyTests.cs | Low - Unit tests |
+
+### Directory-level Tests Missing Async
+
+| Test File | Has Sync | Needs Async |
+|-----------|----------|-------------|
+| TarArchiveDirectoryTests | ✅ | ❌ |
+| TarWriterDirectoryTests | ✅ | ❌ |
+| ZipArchiveDirectoryTests | ✅ | ❌ |
+| ZipWriterDirectoryTests | ✅ | ❌ |
+| GZipArchiveDirectoryTests | ✅ | ❌ |
+| GZipWriterDirectoryTests | ✅ | ❌ |
+
+---
+
+## Summary
+
+### Stream Implementation Work Required
+
+| Priority | Count | Examples |
+|----------|-------|----------|
+| **High** | 3 | CBZip2InputStream, CBZip2OutputStream, Bcj2DecoderStream |
+| **Medium** | 6 | PkwareTraditionalCryptoStream, WinzipAesCryptoStream, PpmdStream, LzwStream, ExplodeStream, BufferedSubStream |
+| **Low** | 4 | Crc32Stream, ShrinkStream, ArcLzwStream |
+
+### Test Work Required
+
+| Priority | Count | Examples |
+|----------|-------|----------|
+| **High** | 1 | SevenZipArchiveTests |
+| **Medium** | 2 | Lzma2Tests, BCJTests |
+| **Low** | 5 | ArcReaderTests, ArjReaderTests, Crc32Tests, etc. |
+| **Directory Tests** | 6 | TarArchiveDirectoryTests, ZipArchiveDirectoryTests, etc. |
+
+---
+
+## Recommendations
+
+1. **Start with Medium-Priority Streams**: PkwareTraditionalCryptoStream and WinzipAesCryptoStream are commonly used in ZIP files and have straightforward async patterns (async read → sync crypto).
+
+2. **Consider the ROI**: The BZip2 and Bcj2 streams are complex to make truly async because their core algorithms are CPU-bound. The benefit would primarily be in avoiding blocking on the underlying stream reads.
+
+3. **Test Coverage**: Prioritize SevenZipArchiveAsyncTests as 7z is a commonly used format.
+
+4. **Directory Tests**: Create async versions of directory tests to ensure async extraction to directories works correctly.

Directory.Build.props

@@ -0,0 +1,16 @@
+<Project>
+  <PropertyGroup>
+    <LangVersion>latest</LangVersion>
+    <Nullable>enable</Nullable>
+    <AnalysisMode>Recommended</AnalysisMode>
+    <WarningsAsErrors>true</WarningsAsErrors>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors>
+    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <RunAnalyzersDuringLiveAnalysis>False</RunAnalyzersDuringLiveAnalysis>
+    <RunAnalyzersDuringBuild>False</RunAnalyzersDuringBuild>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
+  </PropertyGroup>
+</Project>

Directory.Packages.props

@@ -0,0 +1,21 @@
+<Project>
+  <ItemGroup>
+    <PackageVersion Include="Bullseye" Version="6.0.0" />
+    <PackageVersion Include="AwesomeAssertions" Version="9.3.0" />
+    <PackageVersion Include="Glob" Version="1.1.9" />
+    <PackageVersion Include="JetBrains.Profiler.SelfApi" Version="2.5.14" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
+    <PackageVersion Include="Mono.Posix.NETStandard" Version="1.0.0" />
+    <PackageVersion Include="SimpleExec" Version="12.0.0" />
+    <PackageVersion Include="System.Buffers" Version="4.6.1" />
+    <PackageVersion Include="System.Memory" Version="4.6.3" />
+    <PackageVersion Include="System.Text.Encoding.CodePages" Version="8.0.0" />
+    <PackageVersion Include="xunit" Version="2.9.3" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
+    <PackageVersion Include="ZstdSharp.Port" Version="0.8.6" />
+    <PackageVersion Include="Microsoft.NET.ILLink.Tasks" Version="8.0.21" />
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
+  </ItemGroup>
+</Project>

FORMATS.md

@@ -1,36 +1,61 @@
-# Archive Formats
+# Formats
 
 ## Accessing Archives
 
-Archive classes allow random access to a seekable stream.
-Reader classes allow forward-only reading
-Writer classes allow forward-only Writing
+* Archive classes allow random access to a seekable stream.
+* Reader classes allow forward-only reading on a stream.
+* Writer classes allow forward-only Writing on a stream.
 
 ## Supported Format Table
 
-| Archive Format | Compression Format(s) | Compress/Decompress | Archive API | Reader API | Writer API |
-| --- | --- | --- | --- | --- | --- |
-| Rar | Rar | Decompress (1) | RarArchive | RarReader | N/A |
-| Zip (2) | None, DEFLATE, BZip2, LZMA/LZMA2, PPMd | Both | ZipArchive | ZipReader | ZipWriter |
-| Tar | None, BZip2, GZip, LZip | Both | TarArchive | TarReader | TarWriter (3)  |
-| GZip (single file) | GZip | Both | GZipArchive | GZipReader | GZipWriter |
-| 7Zip (4) | LZMA, LZMA2, BZip2, PPMd, BCJ, BCJ2, Deflate | Decompress | SevenZipArchive | N/A | N/A |
+| Archive Format         | Compression Format(s)                             | Compress/Decompress | Archive API     | Reader API | Writer API    |
+| ---------------------- | ------------------------------------------------- | ------------------- | --------------- | ---------- | ------------- |
+| Rar                    | Rar                                               | Decompress (1)      | RarArchive      | RarReader  | N/A           |
+| Zip (2)                | None, Shrink, Reduce, Implode, DEFLATE, Deflate64, BZip2, LZMA/LZMA2, PPMd                           | Both                | ZipArchive      | ZipReader  | ZipWriter     | 
+| Tar                    | None                                              | Both                | TarArchive      | TarReader  | TarWriter (3) |
+| Tar.GZip               | DEFLATE                                           | Both                | TarArchive      | TarReader  | TarWriter (3) |
+| Tar.BZip2              | BZip2                                             | Both                | TarArchive      | TarReader  | TarWriter (3) |
+| Tar.Zstandard          | ZStandard                                         | Decompress          | TarArchive      | TarReader  | N/A |
+| Tar.LZip               | LZMA                                              | Both                | TarArchive      | TarReader  | TarWriter (3) |
+| Tar.XZ                 | LZMA2                                             | Decompress          | TarArchive      | TarReader  | TarWriter (3) |
+| GZip (single file)     | DEFLATE                                           | Both                | GZipArchive     | GZipReader | GZipWriter    |
+| 7Zip (4)               | LZMA, LZMA2, BZip2, PPMd, BCJ, BCJ2, Deflate      | Decompress          | SevenZipArchive | N/A        | N/A           |
 
- 1. SOLID Rars are only supported in the RarReader API.
- 2. Zip format supports pkware and WinzipAES encryption.  However, encrypted LZMA is not supported.  Zip64 reading is supported.
- 3. The Tar format requires a file size in the header.  If no size is specified to the TarWriter and the stream is not seekable, then an exception will be thrown.
- 4. The 7Zip format doesn't allow for reading as a forward-only stream so 7Zip is only supported through the Archive API
+1. SOLID Rars are only supported in the RarReader API.
+2. Zip format supports pkware and WinzipAES encryption. However, encrypted LZMA is not supported. Zip64 reading/writing is supported but only with seekable streams as the Zip spec doesn't support Zip64 data in post data descriptors. Deflate64 is only supported for reading.
+3. The Tar format requires a file size in the header. If no size is specified to the TarWriter and the stream is not seekable, then an exception will be thrown.
+4. The 7Zip format doesn't allow for reading as a forward-only stream so 7Zip is only supported through the Archive API
+5. LZip has no support for extra data like the file name or timestamp. There is a default filename used when looking at the entry Key on the archive.
 
-## Compressors
+## Compression Streams
 
-For those who want to directly compress/decompress bits
+For those who want to directly compress/decompress bits. The single file formats are represented here as well. However, BZip2, LZip and XZ have no metadata (GZip has a little) so using them without something like a Tar file makes little sense.
 
-| Compressor | Compress/Decompress |
-| --- | --- |
-| BZip2Stream | Both |
-| GZipStream | Both |
-| DeflateStream | Both |
-| LZMAStream | Both |
-| PPMdStream | Both |
-| ADCStream | Decompress |
-| LZipStream | Decompress |
+| Compressor      | Compress/Decompress |
+| --------------- | ------------------- |
+| BZip2Stream     | Both                |
+| GZipStream      | Both                |
+| DeflateStream   | Both                |
+| Deflate64Stream | Decompress          |
+| LZMAStream      | Both                |
+| PPMdStream      | Both                |
+| ADCStream       | Decompress          |
+| LZipStream      | Both                |
+| XZStream        | Decompress          |
+| ZStandardStream | Decompress          |
+
+## Archive Formats vs Compression
+
+Sometimes the terminology gets mixed.
+
+### Compression
+
+DEFLATE, LZMA are pure compression algorithms
+
+### Formats
+
+Formats like Zip, 7Zip, Rar are archive formats only. They use other compression methods (e.g. DEFLATE, LZMA, etc.) or propriatory (e.g RAR)
+
+### Overlap
+
+GZip, BZip2 and LZip are single file archival formats. The overlap in the API happens because Tar uses the single file formats as "compression" methods and the API tries to hide this a bit.

NuGet.config

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSourceMapping>
+    <!-- key value for <packageSource> should match key values from <packageSources> element -->
+    <packageSource key="nuget.org">
+      <package pattern="*" />
+    </packageSource>
+  </packageSourceMapping>
+</configuration>

README.md

@@ -1,21 +1,114 @@
 # SharpCompress
 
-SharpCompress is a compression library for .NET/Mono/Silverlight/WP7 that can unrar, un7zip, unzip, untar unbzip2 and ungzip with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip are implemented.
+SharpCompress is a compression library in pure C# for .NET Framework 4.62, .NET Standard 2.1, .NET 6.0 and NET 8.0 that can unrar, un7zip, unzip, untar unbzip2, ungzip, unlzip, unzstd, unarc and unarj with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip/lzip are implemented.
 
-The major feature is support for non-seekable streams so large files can be processed on the fly (i.e. download stream). 
+The major feature is support for non-seekable streams so large files can be processed on the fly (i.e. download stream).
 
-[![Build status](https://ci.appveyor.com/api/projects/status/voxg971oemmvxh1e/branch/master?svg=true)](https://ci.appveyor.com/project/adamhathcock/sharpcompress/branch/master)
+**NEW:** All I/O operations now support async/await for improved performance and scalability. See the [Async Usage](#async-usage) section below.
+
+GitHub Actions Build -
+[![SharpCompress](https://github.com/adamhathcock/sharpcompress/actions/workflows/dotnetcore.yml/badge.svg)](https://github.com/adamhathcock/sharpcompress/actions/workflows/dotnetcore.yml)
+[![Static Badge](https://img.shields.io/badge/API%20Docs-DNDocs-190088?logo=readme&logoColor=white)](https://dndocs.com/d/sharpcompress/api/index.html)
 
 ## Need Help?
+
 Post Issues on Github!
 
 Check the [Supported Formats](FORMATS.md) and [Basic Usage.](USAGE.md)
 
+## Recommended Formats
+
+In general, I recommend GZip (Deflate)/BZip2 (BZip)/LZip (LZMA) as the simplicity of the formats lend to better long term archival as well as the streamability. Tar is often used in conjunction for multiple files in a single archive (e.g. `.tar.gz`)
+
+Zip is okay, but it's a very hap-hazard format and the variation in headers and implementations makes it hard to get correct. Uses Deflate by default but supports a lot of compression methods.
+
+RAR is not recommended as it's a proprietary format and the compression is closed source. Use Tar/LZip for LZMA
+
+7Zip and XZ both are overly complicated. 7Zip does not support streamable formats. XZ has known holes explained here: (http://www.nongnu.org/lzip/xz_inadequate.html) Use Tar/LZip for LZMA compression instead.
+
+ZStandard is an efficient format that works well for streaming with a flexible compression level to tweak the speed/performance trade off you are looking for.  We currently only implement decompression for ZStandard but as we leverage the [ZstdSharp](https://github.com/oleg-st/ZstdSharp) library one could likely add compression support without much trouble (PRs are welcome!).
+
 ## A Simple Request
 
 Hi everyone. I hope you're using SharpCompress and finding it useful. Please give me feedback on what you'd like to see changed especially as far as usability goes. New feature suggestions are always welcome as well. I would also like to know what projects SharpCompress is being used in. I like seeing how it is used to give me ideas for future versions. Thanks!
 
-Please do not email me directly to ask for help.  If you think there is a real issue, please report it here.
+Please do not email me directly to ask for help. If you think there is a real issue, please report it here.
+
+## Async Usage
+
+SharpCompress now provides full async/await support for all I/O operations, allowing for better performance and scalability in modern applications.
+
+### Async Reading Examples
+
+Extract entries asynchronously:
+```csharp
+using (Stream stream = File.OpenRead("archive.zip"))
+using (var reader = ReaderFactory.Open(stream))
+{
+    while (reader.MoveToNextEntry())
+    {
+        if (!reader.Entry.IsDirectory)
+        {
+            // Async extraction
+            await reader.WriteEntryToDirectoryAsync(
+                @"C:\temp",
+                new ExtractionOptions() { ExtractFullPath = true, Overwrite = true },
+                cancellationToken
+            );
+        }
+    }
+}
+```
+
+Extract all entries to directory asynchronously:
+```csharp
+using (Stream stream = File.OpenRead("archive.tar.gz"))
+using (var reader = ReaderFactory.Open(stream))
+{
+    await reader.WriteAllToDirectoryAsync(
+        @"C:\temp",
+        new ExtractionOptions() { ExtractFullPath = true, Overwrite = true },
+        cancellationToken
+    );
+}
+```
+
+Open entry stream asynchronously:
+```csharp
+using (var archive = ZipArchive.Open("archive.zip"))
+{
+    foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
+    {
+        using (var entryStream = await entry.OpenEntryStreamAsync(cancellationToken))
+        {
+            // Process stream asynchronously
+            await entryStream.CopyToAsync(outputStream, cancellationToken);
+        }
+    }
+}
+```
+
+### Async Writing Examples
+
+Write files asynchronously:
+```csharp
+using (Stream stream = File.OpenWrite("output.zip"))
+using (var writer = WriterFactory.Open(stream, ArchiveType.Zip, CompressionType.Deflate))
+{
+    await writer.WriteAsync("file1.txt", fileStream, DateTime.Now, cancellationToken);
+}
+```
+
+Write all files from directory asynchronously:
+```csharp
+using (Stream stream = File.OpenWrite("output.tar.gz"))
+using (var writer = WriterFactory.Open(stream, ArchiveType.Tar, new WriterOptions(CompressionType.GZip)))
+{
+    await writer.WriteAllAsync(@"D:\files", "*", SearchOption.AllDirectories, cancellationToken);
+}
+```
+
+All async methods support `CancellationToken` for graceful cancellation of long-running operations.
 
 ## Want to contribute?
 
@@ -23,14 +116,54 @@ I'm always looking for help or ideas. Please submit code or email with ideas. Un
 
 ## TODOs (always lots)
 
-* RAR 5 support
+* RAR 5 decryption crc check support
 * 7Zip writing
 * Zip64 (Need writing and extend Reading)
 * Multi-volume Zip support.
-* RAR5 support
+* ZStandard writing
 
 ## Version Log
 
+* [Releases](https://github.com/adamhathcock/sharpcompress/releases)
+
+### Version 0.18
+
+* [Now on Github releases](https://github.com/adamhathcock/sharpcompress/releases/tag/0.18)
+
+### Version 0.17.1
+
+* Fix - [Bug Fix for .NET Core on Windows](https://github.com/adamhathcock/sharpcompress/pull/257)
+
+### Version 0.17.0
+
+* New - Full LZip support! Can read and write LZip files and Tars inside LZip files. [Make LZip a first class citizen. #241](https://github.com/adamhathcock/sharpcompress/issues/241)
+* New - XZ read support! Can read XZ files and Tars inside XZ files. [XZ in SharpCompress #91](https://github.com/adamhathcock/sharpcompress/issues/94)
+* Fix - [Regression - zip file writing on seekable streams always assumed stream start was 0. Introduced with Zip64 writing.](https://github.com/adamhathcock/sharpcompress/issues/244)
+* Fix - [Zip files with post-data descriptors can be properly skipped via decompression](https://github.com/adamhathcock/sharpcompress/issues/162)
+
+### Version 0.16.2
+
+* Fix [.NET 3.5 should support files and cryptography (was a regression from 0.16.0)](https://github.com/adamhathcock/sharpcompress/pull/251)
+* Fix [Zip per entry compression customization wrote the wrong method into the zip archive](https://github.com/adamhathcock/sharpcompress/pull/249)
+
+### Version 0.16.1
+
+* Fix [Preserve compression method when getting a compressed stream](https://github.com/adamhathcock/sharpcompress/pull/235)
+* Fix [RAR entry key normalization fix](https://github.com/adamhathcock/sharpcompress/issues/201)
+
+### Version 0.16.0
+
+* Breaking - [Progress Event Tracking rethink](https://github.com/adamhathcock/sharpcompress/pull/226)
+* Update to VS2017 - [VS2017](https://github.com/adamhathcock/sharpcompress/pull/231) - Framework targets have been changed.
+* New - [Add Zip64 writing](https://github.com/adamhathcock/sharpcompress/pull/211)
+* [Fix invalid/mismatching Zip version flags.](https://github.com/adamhathcock/sharpcompress/issues/164) - This allows nuget/System.IO.Packaging to read zip files generated by SharpCompress
+* [Fix 7Zip directory hiding](https://github.com/adamhathcock/sharpcompress/pull/215/files)
+* [Verify RAR CRC headers](https://github.com/adamhathcock/sharpcompress/pull/220)
+
+### Version 0.15.2
+
+* [Fix invalid headers](https://github.com/adamhathcock/sharpcompress/pull/210) - fixes an issue creating large-ish zip archives that was introduced with zip64 reading.
+
 ### Version 0.15.1
 
 * [Zip64 extending information and ZipReader](https://github.com/adamhathcock/sharpcompress/pull/206)
@@ -85,7 +218,7 @@ I'm always looking for help or ideas. Please submit code or email with ideas. Un
 ### Version 0.11.6
 
 * Bug fix for global header in Tar
-* Writers now have a leaveOpen `bool` overload.  They won't close streams if not-requested to.
+* Writers now have a leaveOpen `bool` overload. They won't close streams if not-requested to.
 
 ### Version 0.11.5
 
@@ -104,7 +237,7 @@ I'm always looking for help or ideas. Please submit code or email with ideas. Un
 
 ### Version 0.11
 
-* Been over a year, contains mainly fixes from contributors!  
+* Been over a year, contains mainly fixes from contributors!
 * Possible breaking change: ArchiveEncoding is UTF8 by default now.
 * TAR supports writing long names using longlink
 * RAR Protect Header added
@@ -131,6 +264,10 @@ I'm always looking for help or ideas. Please submit code or email with ideas. Un
 * Embedded some BouncyCastle crypto classes to allow RAR Decryption and Winzip AES Decryption in Portable and Windows Store DLLs
 * Built in Release (I think)
 
+XZ implementation based on: https://github.com/sambott/XZ.NET by @sambott
+
+XZ BCJ filters support contributed by Louis-Michel Bergeron, on behalf of aDolus Technology Inc. - 2022
+
 7Zip implementation based on: https://code.google.com/p/managed-lzma/
 
 LICENSE

SharpCompress.sln

@@ -1,24 +1,35 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 14
-VisualStudioVersion = 14.0.24720.0
+# Visual Studio 15
+VisualStudioVersion = 15.0.26430.6
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{F18F1765-4A02-42FD-9BEF-F0E2FCBD9D17}"
-	ProjectSection(SolutionItems) = preProject
-		global.json = global.json
-	EndProjectSection
-EndProject
-Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "SharpCompress", "src\SharpCompress\SharpCompress.xproj", "{FD19DDD8-72B2-4024-8665-0D1F7A2AA998}"
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{3C5BE746-03E5-4895-9988-0B57F162F86C}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{0F0901FF-E8D9-426A-B5A2-17C7F47C1529}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{0F0901FF-E8D9-426A-B5A2-17C7F47C1529}"
 EndProject
-Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "SharpCompress.Test", "test\SharpCompress.Test\SharpCompress.Test.xproj", "{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5}"
-	ProjectSection(ProjectDependencies) = postProject
-		{FD19DDD8-72B2-4024-8665-0D1F7A2AA998} = {FD19DDD8-72B2-4024-8665-0D1F7A2AA998}
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SharpCompress", "src\SharpCompress\SharpCompress.csproj", "{FD19DDD8-72B2-4024-8665-0D1F7A2AA998}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SharpCompress.Test", "tests\SharpCompress.Test\SharpCompress.Test.csproj", "{F2B1A1EB-0FA6-40D0-8908-E13247C7226F}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "build", "build\build.csproj", "{D4D613CB-5E94-47FB-85BE-B8423D20C545}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Config", "Config", "{CDB42573-7D22-4490-BA12-1B7FB99CE7FB}"
+	ProjectSection(SolutionItems) = preProject
+		Directory.Build.props = Directory.Build.props
+		global.json = global.json
+		.editorconfig = .editorconfig
+		Directory.Packages.props = Directory.Packages.props
+		NuGet.config = NuGet.config
+		.github\workflows\dotnetcore.yml = .github\workflows\dotnetcore.yml
+		USAGE.md = USAGE.md
+		README.md = README.md
+		FORMATS.md = FORMATS.md
+		AGENTS.md = AGENTS.md
+		ASYNC_ANALYSIS.md = ASYNC_ANALYSIS.md
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpCompress.Performance", "tests\SharpCompress.Performance\SharpCompress.Performance.csproj", "{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -29,16 +40,25 @@ Global
 		{FD19DDD8-72B2-4024-8665-0D1F7A2AA998}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FD19DDD8-72B2-4024-8665-0D1F7A2AA998}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FD19DDD8-72B2-4024-8665-0D1F7A2AA998}.Release|Any CPU.Build.0 = Release|Any CPU
-		{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F2B1A1EB-0FA6-40D0-8908-E13247C7226F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F2B1A1EB-0FA6-40D0-8908-E13247C7226F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F2B1A1EB-0FA6-40D0-8908-E13247C7226F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F2B1A1EB-0FA6-40D0-8908-E13247C7226F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D4D613CB-5E94-47FB-85BE-B8423D20C545}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D4D613CB-5E94-47FB-85BE-B8423D20C545}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D4D613CB-5E94-47FB-85BE-B8423D20C545}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D4D613CB-5E94-47FB-85BE-B8423D20C545}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{FD19DDD8-72B2-4024-8665-0D1F7A2AA998} = {3C5BE746-03E5-4895-9988-0B57F162F86C}
-		{3B80E585-A2F3-4666-8F69-C7FFDA0DD7E5} = {0F0901FF-E8D9-426A-B5A2-17C7F47C1529}
+		{F2B1A1EB-0FA6-40D0-8908-E13247C7226F} = {0F0901FF-E8D9-426A-B5A2-17C7F47C1529}
+		{5BDE6DBC-9E5F-4E21-AB71-F138A3E72B17} = {0F0901FF-E8D9-426A-B5A2-17C7F47C1529}
 	EndGlobalSection
 EndGlobal

SharpCompress.sln.DotSettings

@@ -15,17 +15,17 @@
 	
 	<s:String x:Key="/Default/CodeStyle/CodeCleanup/SilentCleanupProfile/@EntryValue">Basic Clean</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/APPLY_ON_COMPLETION/@EntryValue">True</s:Boolean>
-	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/ARGUMENTS_NAMED/@EntryValue">Named</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/ARGUMENTS_NAMED/@EntryValue">Positional</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_FOR_FOR/@EntryValue">Required</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_FOR_FOREACH/@EntryValue">Required</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_FOR_IFELSE/@EntryValue">Required</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/BRACES_FOR_WHILE/@EntryValue">Required</s:String>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_FIRST_ARG_BY_PAREN/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_FIRST_ARG_BY_PAREN/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_LINQ_QUERY/@EntryValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_ARGUMENT/@EntryValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_ARRAY_AND_OBJECT_INITIALIZER/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_ARRAY_AND_OBJECT_INITIALIZER/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_CALLS_CHAIN/@EntryValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_EXPRESSION/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_EXPRESSION/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_EXTENDS_LIST/@EntryValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_FOR_STMT/@EntryValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ALIGN_MULTILINE_PARAMETER/@EntryValue">True</s:Boolean>
@@ -42,16 +42,20 @@
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/FORCE_IFELSE_BRACES_STYLE/@EntryValue">ALWAYS_ADD</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/FORCE_USING_BRACES_STYLE/@EntryValue">ALWAYS_ADD</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/FORCE_WHILE_BRACES_STYLE/@EntryValue">ALWAYS_ADD</s:String>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/INDENT_ANONYMOUS_METHOD_BLOCK/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/INDENT_ANONYMOUS_METHOD_BLOCK/@EntryValue">False</s:Boolean>
 	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/KEEP_BLANK_LINES_IN_CODE/@EntryValue">1</s:Int64>
 	<s:Int64 x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/KEEP_BLANK_LINES_IN_DECLARATIONS/@EntryValue">1</s:Int64>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_ACCESSOR_ATTRIBUTE_ON_SAME_LINE_EX/@EntryValue">NEVER</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_ACCESSORHOLDER_ATTRIBUTE_ON_SAME_LINE_EX/@EntryValue">NEVER</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_CONSTRUCTOR_INITIALIZER_ON_SAME_LINE/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_FIELD_ATTRIBUTE_ON_SAME_LINE/@EntryValue">False</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_ACCESSORHOLDER_ON_SINGLE_LINE/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_FIELD_ATTRIBUTE_ON_SAME_LINE_EX/@EntryValue">NEVER</s:String>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_ACCESSORHOLDER_ON_SINGLE_LINE/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_ACCESSOR_ATTRIBUTE_ON_SAME_LINE/@EntryValue">False</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_INITIALIZER_ON_SINGLE_LINE/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_EMBEDDED_STATEMENT_ON_SAME_LINE/@EntryValue">NEVER</s:String>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_SIMPLE_INITIALIZER_ON_SINGLE_LINE/@EntryValue">False</s:Boolean>
 	
-	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_WHILE_ON_NEW_LINE/@EntryValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/PLACE_WHILE_ON_NEW_LINE/@EntryValue">False</s:Boolean>
 	
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SIMPLE_EMBEDDED_STATEMENT_STYLE/@EntryValue">LINE_BREAK</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_AFTER_TYPECAST_PARENTHESES/@EntryValue">False</s:Boolean>
@@ -63,18 +67,22 @@
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_BEFORE_TYPEOF_PARENTHESES/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/STICK_COMMENT/@EntryValue">False</s:Boolean>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_ARGUMENTS_STYLE/@EntryValue">CHOP_IF_LONG</s:String>
-	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_ARRAY_INITIALIZER_STYLE/@EntryValue">CHOP_IF_LONG</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_ARRAY_INITIALIZER_STYLE/@EntryValue">CHOP_ALWAYS</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_EXTENDS_LIST_STYLE/@EntryValue">CHOP_IF_LONG</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_LINES/@EntryValue">False</s:Boolean>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_PARAMETERS_STYLE/@EntryValue">CHOP_IF_LONG</s:String>
-	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForBuiltInTypes/@EntryValue">UseVarWhenEvident</s:String>
-	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForOtherTypes/@EntryValue">UseVarWhenEvident</s:String>
-	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForSimpleTypes/@EntryValue">UseVarWhenEvident</s:String>
+	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForBuiltInTypes/@EntryValue">UseVar</s:String>
+	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForOtherTypes/@EntryValue">UseVar</s:String>
+	<s:String x:Key="/Default/CodeStyle/CSharpVarKeywordUsage/ForSimpleTypes/@EntryValue">UseVar</s:String>
 	
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateStaticFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateStaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=StaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=15b5b1f1_002D457c_002D4ca6_002Db278_002D5615aedc07d3/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Static" AccessRightKinds="Private" Description="Static readonly fields (private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="READONLY_FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;&lt;/Policy&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=4a98fdf6_002D7d98_002D4f5a_002Dafeb_002Dea44ad98c70c/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Instance" AccessRightKinds="Private" Description="Instance fields (private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="FIELD" /&gt;&lt;Kind Name="READONLY_FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;&lt;/Policy&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=c873eafb_002Dd57f_002D481d_002D8c93_002D77f6863c2f88/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Static" AccessRightKinds="Protected, ProtectedInternal, Internal, Public, PrivateProtected" Description="Static readonly fields (not private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="READONLY_FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;&lt;/Policy&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=f9fce829_002De6f4_002D4cb2_002D80f1_002D5497c44f51df/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Static" AccessRightKinds="Private" Description="Static fields (private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;&lt;/Policy&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/JavaScriptNaming/UserRules/=JS_005FBLOCK_005FSCOPE_005FCONSTANT/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/JavaScriptNaming/UserRules/=JS_005FBLOCK_005FSCOPE_005FFUNCTION/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/JavaScriptNaming/UserRules/=JS_005FBLOCK_005FSCOPE_005FVARIABLE/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
@@ -114,6 +122,17 @@
 	<s:String x:Key="/Default/CodeStyle/Naming/XamlNaming/UserRules/=NAMESPACE_005FALIAS/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/XamlNaming/UserRules/=XAML_005FFIELD/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/XamlNaming/UserRules/=XAML_005FRESOURCE/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CustomTools/CustomToolsData/@EntryValue"></s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpAttributeForSingleLineMethodUpgrade/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpKeepExistingMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpPlaceEmbeddedOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpRenamePlacementToArrangementMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpUseContinuousIndentInsideBracesMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EAddAccessorOwnerDeclarationBracesMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002ECSharpPlaceAttributeOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateBlankLinesAroundFieldToBlankLinesAroundProperty/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateThisQualifierSettings/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateThisQualifierSettings/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EPredefinedNamingRulesToUserRulesUpgrade/@EntryIndexedValue">True</s:Boolean>
+	<s:String x:Key="/Default/Environment/UnitTesting/UnitTestSessionStore/Sessions/=6af8f80e_002D9fdd_002D4223_002D8e02_002D473db916f9b2/@EntryIndexedValue">&lt;SessionState ContinuousTestingIsOn="False" ContinuousTestingMode="0" FrameworkVersion="{x:Null}" IsLocked="False" Name="All tests from Solution" PlatformMonoPreference="{x:Null}" PlatformType="{x:Null}" xmlns="urn:schemas-jetbrains-com:jetbrains-ut-session" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"&gt;
+  &lt;Solution /&gt;
+&lt;/SessionState&gt;</s:String></wpf:ResourceDictionary>

USAGE.md

@@ -1,7 +1,21 @@
 # SharpCompress Usage
 
-## Stream Rules
-When dealing with Streams, the rule should be that you don't close a stream you didn't create.  This, in effect, should mean you should always put a Stream in a using block to dispose it.
+## Async/Await Support
+
+SharpCompress now provides full async/await support for all I/O operations. All `Read`, `Write`, and extraction operations have async equivalents ending in `Async` that accept an optional `CancellationToken`. This enables better performance and scalability for I/O-bound operations.
+
+**Key Async Methods:**
+- `reader.WriteEntryToAsync(stream, cancellationToken)` - Extract entry asynchronously  
+- `reader.WriteAllToDirectoryAsync(path, options, cancellationToken)` - Extract all asynchronously
+- `writer.WriteAsync(filename, stream, modTime, cancellationToken)` - Write entry asynchronously
+- `writer.WriteAllAsync(directory, pattern, searchOption, cancellationToken)` - Write directory asynchronously
+- `entry.OpenEntryStreamAsync(cancellationToken)` - Open entry stream asynchronously
+
+See [Async Examples](#async-examples) section below for usage patterns.
+
+## Stream Rules (changed with 0.21)
+
+When dealing with Streams, the rule should be that you don't close a stream you didn't create. This, in effect, should mean you should always put a Stream in a using block to dispose it. 
 
 However, the .NET Framework often has classes that will dispose streams by default to make things "easy" like the following:
 
@@ -12,7 +26,7 @@ using (var reader = new StreamReader(File.Open("foo")))
 }
 ```
 
-In this example, reader should get disposed.  However, stream rules should say the the `FileStream` created by `File.Open` should remain open.  However, the .NET Framework closes it for you by default unless you override the constructor.  In general, you should be writing Stream code like this:
+In this example, reader should get disposed. However, stream rules should say the the `FileStream` created by `File.Open` should remain open. However, the .NET Framework closes it for you by default unless you override the constructor. In general, you should be writing Stream code like this:
 
 ```C#
 using (var fileStream = File.Open("foo"))
@@ -22,16 +36,27 @@ using (var reader = new StreamReader(fileStream))
 }
 ```
 
-To deal with the "correct" rules as well as the expectations of users, I've decided on this:
-
-* When writing, leave streams open.
-* When reading, close streams 
+To deal with the "correct" rules as well as the expectations of users, I've decided to always close wrapped streams as of 0.21.
 
 To be explicit though, consider always using the overloads that use `ReaderOptions` or `WriterOptions` and explicitly set `LeaveStreamOpen` the way you want.
 
+If using Compression Stream classes directly and you don't want the wrapped stream to be closed.  Use the `NonDisposingStream` as a wrapper to prevent the stream being disposed.  The change in 0.21 simplified a lot even though the usage is a bit more convoluted.
+
 ## Samples
 
-Also, look over the tests for more thorough [examples](https://github.com/adamhathcock/sharpcompress/tree/master/test/SharpCompress.Test)
+Also, look over the tests for more thorough [examples](https://github.com/adamhathcock/sharpcompress/tree/master/tests/SharpCompress.Test)
+
+### Create Zip Archive from multiple files
+```C#
+using(var archive = ZipArchive.Create())
+{
+    archive.AddEntry("file01.txt", "C:\\file01.txt");
+    archive.AddEntry("file02.txt", "C:\\file02.txt");
+    ...
+    
+    archive.SaveTo("C:\\temp.zip", CompressionType.Deflate);
+}
+```
 
 ### Create Zip Archive from all files in a directory to a file
 
@@ -43,11 +68,9 @@ using (var archive = ZipArchive.Create())
 }
 ```
 
-
 ### Create Zip Archive from all files in a directory and save in memory
 
 ```C#
-
 var memoryStream = new MemoryStream();
 using (var archive = ZipArchive.Create())
 {
@@ -61,18 +84,34 @@ using (var archive = ZipArchive.Create())
 memoryStream.Position = 0;
 ```
 
-### Extract all files from a Rar file to a directory using RarArchive
+### Extract all files from a rar file to a directory using RarArchive
+
+Note: Extracting a solid rar or 7z file needs to be done in sequential order to get acceptable decompression speed.
+It is explicitly recommended to use `ExtractAllEntries` when extracting an entire `IArchive` instead of iterating over all its `Entries`.
+Alternatively, use `IArchive.WriteToDirectory`.
+
+```C#
+using (var archive = RarArchive.Open("Test.rar"))
+{
+    using (var reader = archive.ExtractAllEntries())
+    {
+        reader.WriteAllToDirectory(@"D:\temp", new ExtractionOptions()
+        {
+            ExtractFullPath = true,
+            Overwrite = true
+        });
+    }
+}
+```
+
+### Iterate over all files from a Rar file using RarArchive
 
 ```C#
 using (var archive = RarArchive.Open("Test.rar"))
 {
     foreach (var entry in archive.Entries.Where(entry => !entry.IsDirectory))
     {
-        entry.WriteToDirectory("D:\\temp", new ExtractionOptions()
-        {
-            ExtractFullPath = true,
-            Overwrite = true
-        });
+        Console.WriteLine($"{entry.Key}: {entry.Size} bytes");
     }
 }
 ```
@@ -129,3 +168,150 @@ using (var writer = WriterFactory.Open(stream, ArchiveType.Tar, new WriterOption
     writer.WriteAll("D:\\temp", "*", SearchOption.AllDirectories);
 }
 ```
+
+### Extract zip which has non-utf8 encoded filename(cp932)
+
+```C#
+var opts = new SharpCompress.Readers.ReaderOptions();
+var encoding = Encoding.GetEncoding(932);
+opts.ArchiveEncoding = new SharpCompress.Common.ArchiveEncoding();
+opts.ArchiveEncoding.CustomDecoder = (data, x, y) =>
+{
+    return encoding.GetString(data);
+};
+var tr = SharpCompress.Archives.Zip.ZipArchive.Open("test.zip", opts);
+foreach(var entry in tr.Entries)
+{
+    Console.WriteLine($"{entry.Key}");
+}
+```
+
+## Async Examples
+
+### Async Reader Examples
+
+**Extract single entry asynchronously:**
+```C#
+using (Stream stream = File.OpenRead("archive.zip"))
+using (var reader = ReaderFactory.Open(stream))
+{
+    while (reader.MoveToNextEntry())
+    {
+        if (!reader.Entry.IsDirectory)
+        {
+            using (var entryStream = reader.OpenEntryStream())
+            {
+                using (var outputStream = File.Create("output.bin"))
+                {
+                    await reader.WriteEntryToAsync(outputStream, cancellationToken);
+                }
+            }
+        }
+    }
+}
+```
+
+**Extract all entries asynchronously:**
+```C#
+using (Stream stream = File.OpenRead("archive.tar.gz"))
+using (var reader = ReaderFactory.Open(stream))
+{
+    await reader.WriteAllToDirectoryAsync(
+        @"D:\temp",
+        new ExtractionOptions()
+        {
+            ExtractFullPath = true,
+            Overwrite = true
+        },
+        cancellationToken
+    );
+}
+```
+
+**Open and process entry stream asynchronously:**
+```C#
+using (var archive = ZipArchive.Open("archive.zip"))
+{
+    foreach (var entry in archive.Entries.Where(e => !e.IsDirectory))
+    {
+        using (var entryStream = await entry.OpenEntryStreamAsync(cancellationToken))
+        {
+            // Process the decompressed stream asynchronously
+            await ProcessStreamAsync(entryStream, cancellationToken);
+        }
+    }
+}
+```
+
+### Async Writer Examples
+
+**Write single file asynchronously:**
+```C#
+using (Stream archiveStream = File.OpenWrite("output.zip"))
+using (var writer = WriterFactory.Open(archiveStream, ArchiveType.Zip, CompressionType.Deflate))
+{
+    using (Stream fileStream = File.OpenRead("input.txt"))
+    {
+        await writer.WriteAsync("entry.txt", fileStream, DateTime.Now, cancellationToken);
+    }
+}
+```
+
+**Write entire directory asynchronously:**
+```C#
+using (Stream stream = File.OpenWrite("backup.tar.gz"))
+using (var writer = WriterFactory.Open(stream, ArchiveType.Tar, new WriterOptions(CompressionType.GZip)))
+{
+    await writer.WriteAllAsync(
+        @"D:\files",
+        "*",
+        SearchOption.AllDirectories,
+        cancellationToken
+    );
+}
+```
+
+**Write with progress tracking and cancellation:**
+```C#
+var cts = new CancellationTokenSource();
+
+// Set timeout or cancel from UI
+cts.CancelAfter(TimeSpan.FromMinutes(5));
+
+using (Stream stream = File.OpenWrite("archive.zip"))
+using (var writer = WriterFactory.Open(stream, ArchiveType.Zip, CompressionType.Deflate))
+{
+    try
+    {
+        await writer.WriteAllAsync(@"D:\data", "*", SearchOption.AllDirectories, cts.Token);
+    }
+    catch (OperationCanceledException)
+    {
+        Console.WriteLine("Operation was cancelled");
+    }
+}
+```
+
+### Archive Async Examples
+
+**Extract from archive asynchronously:**
+```C#
+using (var archive = ZipArchive.Open("archive.zip"))
+{
+    using (var reader = archive.ExtractAllEntries())
+    {
+        await reader.WriteAllToDirectoryAsync(
+            @"C:\output",
+            new ExtractionOptions() { ExtractFullPath = true, Overwrite = true },
+            cancellationToken
+        );
+    }
+}
+```
+
+**Benefits of Async Operations:**
+- Non-blocking I/O for better application responsiveness
+- Improved scalability for server applications
+- Support for cancellation via CancellationToken
+- Better resource utilization in async/await contexts
+- Compatible with modern .NET async patterns

appveyor.yml

@@ -1,17 +0,0 @@
-version: '0.15.{build}'
-
-init:
-- git config --global core.autocrlf true
-
-build_script:
-- ps: .\build.ps1
-
-test: off
-
-cache:
-- tools -> build.cake
-- tools -> build.ps1
-
-artifacts:
-- path: nupkgs\*.nupkg
-  name: NuPkgs

build.cake

@@ -1,229 +0,0 @@
-#addin "Cake.Json"
-
-#addin "nuget:?package=NuGet.Core"
-
-using NuGet;
-
-
-//////////////////////////////////////////////////////////////////////
-// ARGUMENTS
-//////////////////////////////////////////////////////////////////////
-
-var target = Argument("target", "Default");
-var apiKey = Argument("apiKey", "");
-var repo = Argument("repo", "");
-
-//////////////////////////////////////////////////////////////////////
-// PREPARATION
-//////////////////////////////////////////////////////////////////////
-
-var sources = new [] { "https://api.nuget.org/v3/index.json" };
-var publishTarget = "";
-
-Warning("=============");
-var globalPath = MakeFullPath("global.json");
-var nupkgs = MakeFullPath("nupkgs");
-Warning("Operating on global.json: " + globalPath);
-Warning("=============");
-
-//////////////////////////////////////////////////////////////////////
-// FUNCTIONS
-//////////////////////////////////////////////////////////////////////
-
-string MakeFullPath(string relativePath) 
-{
-    if (string.IsNullOrEmpty(repo))
-    {
-        return MakeAbsolute(new DirectoryPath(relativePath)).ToString();
-    }
-    if (!System.IO.Path.IsPathRooted(repo))
-    {
-        return MakeAbsolute(new DirectoryPath(System.IO.Path.Combine(repo,relativePath))).ToString();
-    }
-    return System.IO.Path.Combine(repo, relativePath);
-}
-
-IEnumerable<string> GetAllProjects() 
-{
-    var global = DeserializeJsonFromFile<JObject>(globalPath);  
-    var projs = global["projects"].Select(x => x.ToString());
-    foreach(var y in projs)
-    {
-        yield return MakeFullPath(y);
-    }
-}
-
-IEnumerable<string> GetSourceProjects()
-{    
-    return GetAllProjects().Where(x => x.EndsWith("src"));
-}
-
-IEnumerable<string> GetTestProjects()
-{    
-    return GetAllProjects().Where(x => x.EndsWith("test"));
-}
-
-IEnumerable<string> GetFrameworks(string path) 
-{
-    var projectJObject = DeserializeJsonFromFile<JObject>(path);
-    foreach(var prop in ((JObject)projectJObject["frameworks"]).Properties()) 
-    {
-        yield return prop.Name;   
-    }    
-}
-
-string GetVersion(string path) 
-{
-    var projectJObject = DeserializeJsonFromFile<JObject>(path);
-    return ((JToken)projectJObject["version"]).ToString();
-}
-
-IEnumerable<string> GetProjectJsons(IEnumerable<string> projects) 
-{
-    foreach(var proj in projects)
-    {
-        foreach(var projectJson in GetFiles(proj + "/**/project.json"))
-        {
-            yield return MakeFullPath(projectJson.ToString());
-        }
-    }
-}
-
-bool IsNuGetPublished (FilePath file, string nugetSource)
-{
-    var pkg = new ZipPackage(file.ToString());
-
-    var repo = PackageRepositoryFactory.Default.CreateRepository(nugetSource);
-
-    var packages = repo.FindPackagesById(pkg.Id);
-
-    var version = SemanticVersion.Parse(pkg.Version.ToString());
-
-    //Filter the list of packages that are not Release (Stable) versions
-    var exists = packages.Any (p => p.Version == version);
-
-    return exists;
-}
-
-//////////////////////////////////////////////////////////////////////
-// TASKS
-//////////////////////////////////////////////////////////////////////
-
-Task("Restore")
-    .Does(() =>
-{
-    var settings = new DotNetCoreRestoreSettings
-    {
-        Sources =  sources,
-        NoCache = true
-    };
-    
-    foreach(var project in GetProjectJsons(GetSourceProjects().Concat(GetTestProjects())))
-    {
-        DotNetCoreRestore(project, settings);
-    }
-});
-
-Task("Build")
-    .Does(() =>
-{
-    var settings = new DotNetCoreBuildSettings
-    {
-        Configuration = "Release"
-    };
-    
-    foreach(var project in GetProjectJsons(GetSourceProjects().Concat(GetTestProjects())))
-    {
-        foreach(var framework in GetFrameworks(project))
-        {
-            Information("Building: {0} on Framework: {1}", project, framework);
-            Information("========");
-            settings.Framework = framework;
-            DotNetCoreBuild(project, settings);
-        }
-    }  
-});
-
-Task("Test")
-    .Does(() =>
-{  
-    var settings = new DotNetCoreTestSettings
-    {
-        Configuration = "Release",
-        Verbose = true
-    };
-    
-    foreach(var project in GetProjectJsons(GetTestProjects()))
-    {       
-        settings.Framework = GetFrameworks(project).First();
-        DotNetCoreTest(project.ToString(), settings);
-    }
-       
-}).ReportError(exception =>
-{  
-    Error(exception.ToString());
-});
-
-Task("Pack")
-    .Does(() =>
-{ 
-    if (DirectoryExists(nupkgs))
-    {
-        DeleteDirectory(nupkgs, true);
-    }
-    CreateDirectory(nupkgs);
-    
-    var settings = new DotNetCorePackSettings 
-    {
-        Configuration = "Release",
-        OutputDirectory = nupkgs
-    };
-        
-    foreach(var project in GetProjectJsons(GetSourceProjects()))
-    { 
-        DotNetCorePack(project, settings);
-    }   
-});
-
-Task("Publish")
-    .IsDependentOn("Restore")
-    .IsDependentOn("Build")
-    .IsDependentOn("Test")
-    .IsDependentOn("Pack")
-    .Does(() =>
-{
-    var packages = GetFiles(nupkgs + "/*.nupkg");
-    foreach(var package in packages) 
-    {
-        if (package.ToString().Contains("symbols"))
-        {
-            Warning("Skipping Symbols package " + package);
-            continue;
-        }
-        if (IsNuGetPublished(package, sources[1]))
-        {
-            throw new InvalidOperationException(package + " is already published.");
-        }
-        NuGetPush(package, new NuGetPushSettings{
-            ApiKey = apiKey,
-            Verbosity = NuGetVerbosity.Detailed,
-            Source = publishTarget
-        });     
-    }         
-});
-
-//////////////////////////////////////////////////////////////////////
-// TASK TARGETS
-//////////////////////////////////////////////////////////////////////
-
-Task("Default")
-    .IsDependentOn("Restore")
-    .IsDependentOn("Build")
-    .IsDependentOn("Test")
-    .IsDependentOn("Pack");
-
-//////////////////////////////////////////////////////////////////////
-// EXECUTION
-//////////////////////////////////////////////////////////////////////
-
-RunTarget(target);

build.ps1

@@ -1,130 +0,0 @@
-<#
-.SYNOPSIS
-This is a Powershell script to bootstrap a Cake build.
-.DESCRIPTION
-This Powershell script will download NuGet if missing, restore NuGet tools (including Cake)
-and execute your Cake build script with the parameters you provide.
-.PARAMETER Target
-The build script target to run.
-.PARAMETER Configuration
-The build configuration to use.
-.PARAMETER Verbosity
-Specifies the amount of information to be displayed.
-.PARAMETER WhatIf
-Performs a dry run of the build script.
-No tasks will be executed.
-.PARAMETER ScriptArgs
-Remaining arguments are added here.
-.LINK
-http://cakebuild.net
-#>
-
-[CmdletBinding()]
-Param(
-    [string]$Script = "build.cake",
-    [string]$Target = "Default",
-    [ValidateSet("Release", "Debug")]
-    [string]$Configuration = "Release",
-    [ValidateSet("Quiet", "Minimal", "Normal", "Verbose", "Diagnostic")]
-    [string]$Verbosity = "Verbose",
-    [switch]$WhatIf,
-    [Parameter(Position=0,Mandatory=$false,ValueFromRemainingArguments=$true)]
-    [string[]]$ScriptArgs
-)
-
-$CakeVersion = "0.16.1"
-$DotNetChannel = "preview";
-$DotNetVersion = "1.0.0-preview2-003131";
-$DotNetInstallerUri = "https://raw.githubusercontent.com/dotnet/cli/rel/1.0.0-preview2/scripts/obtain/dotnet-install.ps1";
-$NugetUrl = "https://dist.nuget.org/win-x86-commandline/latest/nuget.exe"
-
-# Make sure tools folder exists
-$PSScriptRoot = Split-Path $MyInvocation.MyCommand.Path -Parent
-$ToolPath = Join-Path $PSScriptRoot "tools"
-if (!(Test-Path $ToolPath)) {
-    Write-Verbose "Creating tools directory..."
-    New-Item -Path $ToolPath -Type directory | out-null
-}
-
-###########################################################################
-# INSTALL .NET CORE CLI
-###########################################################################
-
-Function Remove-PathVariable([string]$VariableToRemove)
-{
-    $path = [Environment]::GetEnvironmentVariable("PATH", "User")
-    if ($path -ne $null)
-    {
-        $newItems = $path.Split(';', [StringSplitOptions]::RemoveEmptyEntries) | Where-Object { "$($_)" -inotlike $VariableToRemove }
-        [Environment]::SetEnvironmentVariable("PATH", [System.String]::Join(';', $newItems), "User")
-    }
-
-    $path = [Environment]::GetEnvironmentVariable("PATH", "Process")
-    if ($path -ne $null)
-    {
-        $newItems = $path.Split(';', [StringSplitOptions]::RemoveEmptyEntries) | Where-Object { "$($_)" -inotlike $VariableToRemove }
-        [Environment]::SetEnvironmentVariable("PATH", [System.String]::Join(';', $newItems), "Process")
-    }
-}
-
-# Get .NET Core CLI path if installed.
-$FoundDotNetCliVersion = $null;
-if (Get-Command dotnet -ErrorAction SilentlyContinue) {
-    $FoundDotNetCliVersion = dotnet --version;
-}
-
-if($FoundDotNetCliVersion -ne $DotNetVersion) {
-    $InstallPath = Join-Path $PSScriptRoot ".dotnet"
-    if (!(Test-Path $InstallPath)) {
-        mkdir -Force $InstallPath | Out-Null;
-    }
-    (New-Object System.Net.WebClient).DownloadFile($DotNetInstallerUri, "$InstallPath\dotnet-install.ps1");
-    & $InstallPath\dotnet-install.ps1 -Channel $DotNetChannel -Version $DotNetVersion -InstallDir $InstallPath;
-
-    Remove-PathVariable "$InstallPath"
-    $env:PATH = "$InstallPath;$env:PATH"
-    $env:DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
-    $env:DOTNET_CLI_TELEMETRY_OPTOUT=1
-}
-
-###########################################################################
-# INSTALL NUGET
-###########################################################################
-
-# Make sure nuget.exe exists.
-$NugetPath = Join-Path $ToolPath "nuget.exe"
-if (!(Test-Path $NugetPath)) {
-    Write-Host "Downloading NuGet.exe..."
-    (New-Object System.Net.WebClient).DownloadFile($NugetUrl, $NugetPath);
-}
-
-###########################################################################
-# INSTALL CAKE
-###########################################################################
-
-# Make sure Cake has been installed.
-$CakePath = Join-Path $ToolPath "Cake.$CakeVersion/Cake.exe"
-if (!(Test-Path $CakePath)) {
-    Write-Host "Installing Cake..."
-    Invoke-Expression "&`"$NugetPath`" install Cake -Version $CakeVersion -OutputDirectory `"$ToolPath`"" | Out-Null;
-    if ($LASTEXITCODE -ne 0) {
-        Throw "An error occured while restoring Cake from NuGet."
-    }
-}
-
-###########################################################################
-# RUN BUILD SCRIPT
-###########################################################################
-
-# Build the argument list.
-$Arguments = @{
-    target=$Target;
-    configuration=$Configuration;
-    verbosity=$Verbosity;
-    dryrun=$WhatIf;
-}.GetEnumerator() | %{"--{0}=`"{1}`"" -f $_.key, $_.value };
-
-# Start Cake
-Write-Host "Running build script..."
-Invoke-Expression "& `"$CakePath`" `"$Script`" $Arguments $ScriptArgs"
-exit $LASTEXITCODE

build/Program.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using GlobExpressions;
+using static Bullseye.Targets;
+using static SimpleExec.Command;
+
+const string Clean = "clean";
+const string Restore = "restore";
+const string Build = "build";
+const string Test = "test";
+const string Format = "format";
+const string Publish = "publish";
+
+Target(
+    Clean,
+    ["**/bin", "**/obj"],
+    dir =>
+    {
+        IEnumerable<string> GetDirectories(string d)
+        {
+            return Glob.Directories(".", d);
+        }
+
+        void RemoveDirectory(string d)
+        {
+            if (Directory.Exists(d))
+            {
+                Console.WriteLine(d);
+                Directory.Delete(d, true);
+            }
+        }
+
+        foreach (var d in GetDirectories(dir))
+        {
+            RemoveDirectory(d);
+        }
+    }
+);
+
+Target(
+    Format,
+    () =>
+    {
+        Run("dotnet", "tool restore");
+        Run("dotnet", "csharpier check .");
+    }
+);
+Target(Restore, [Format], () => Run("dotnet", "restore"));
+
+Target(
+    Build,
+    [Restore],
+    () =>
+    {
+        Run("dotnet", "build src/SharpCompress/SharpCompress.csproj -c Release --no-restore");
+    }
+);
+
+Target(
+    Test,
+    [Build],
+    ["net8.0", "net48"],
+    framework =>
+    {
+        IEnumerable<string> GetFiles(string d)
+        {
+            return Glob.Files(".", d);
+        }
+
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && framework == "net48")
+        {
+            return;
+        }
+
+        foreach (var file in GetFiles("**/*.Test.csproj"))
+        {
+            Run("dotnet", $"test {file} -c Release -f {framework} --no-restore --verbosity=normal");
+        }
+    }
+);
+
+Target(
+    Publish,
+    [Test],
+    () =>
+    {
+        Run("dotnet", "pack src/SharpCompress/SharpCompress.csproj -c Release -o artifacts/");
+    }
+);
+
+Target("default", [Publish], () => Console.WriteLine("Done!"));
+
+await RunTargetsAndExitAsync(args);

build/build.csproj

@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Bullseye" />
+    <PackageReference Include="Glob" />
+    <PackageReference Include="SimpleExec" />
+  </ItemGroup>
+</Project>

build/packages.lock.json

@@ -0,0 +1,25 @@
+{
+  "version": 2,
+  "dependencies": {
+    "net8.0": {
+      "Bullseye": {
+        "type": "Direct",
+        "requested": "[6.0.0, )",
+        "resolved": "6.0.0",
+        "contentHash": "vgwwXfzs7jJrskWH7saHRMgPzziq/e86QZNWY1MnMxd7e+De7E7EX4K3C7yrvaK9y02SJoLxNxcLG/q5qUAghw=="
+      },
+      "Glob": {
+        "type": "Direct",
+        "requested": "[1.1.9, )",
+        "resolved": "1.1.9",
+        "contentHash": "AfK5+ECWYTP7G3AAdnU8IfVj+QpGjrh9GC2mpdcJzCvtQ4pnerAGwHsxJ9D4/RnhDUz2DSzd951O/lQjQby2Sw=="
+      },
+      "SimpleExec": {
+        "type": "Direct",
+        "requested": "[12.0.0, )",
+        "resolved": "12.0.0",
+        "contentHash": "ptxlWtxC8vM6Y6e3h9ZTxBBkOWnWrm/Sa1HT+2i1xcXY3Hx2hmKDZP5RShPf8Xr9D+ivlrXNy57ktzyH8kyt+Q=="
+      }
+    }
+  }
+}

global.json

@@ -1,3 +1,6 @@
 {
-    "projects": ["src","test"]
+  "sdk": {
+    "version": "8.0.100",
+    "rollForward": "latestFeature"
+  }
 }

reference/unrar/UnRAR.vcxproj

@@ -0,0 +1,279 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{95CC809B-03FC-4EDB-BB20-FD07A698C05F}</ProjectGuid>
+    <RootNamespace>UnRAR</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v140_xp</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v140_xp</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v140_xp</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization>false</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v140_xp</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>14.0.24720.0</_ProjectFileVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <OutDir>build\unrar32\$(Configuration)\</OutDir>
+    <IntDir>build\unrar32\$(Configuration)\obj\</IntDir>
+    <LinkIncremental>true</LinkIncremental>
+    <GenerateManifest>false</GenerateManifest>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <OutDir>build\unrar64\$(Configuration)\</OutDir>
+    <IntDir>build\unrar64\$(Configuration)\obj\</IntDir>
+    <LinkIncremental>true</LinkIncremental>
+    <GenerateManifest>false</GenerateManifest>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <OutDir>build\unrar32\$(Configuration)\</OutDir>
+    <IntDir>build\unrar32\$(Configuration)\obj\</IntDir>
+    <LinkIncremental>false</LinkIncremental>
+    <GenerateManifest>false</GenerateManifest>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <OutDir>build\unrar64\$(Configuration)\</OutDir>
+    <IntDir>build\unrar64\$(Configuration)\obj\</IntDir>
+    <LinkIncremental>false</LinkIncremental>
+    <GenerateManifest>false</GenerateManifest>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <AdditionalOptions>/MP %(AdditionalOptions)</AdditionalOptions>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>UNRAR;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
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reference/unrar/UnRARDll.vcxproj

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+      <ModuleDefinitionFile>dll_nocrypt.def</ModuleDefinitionFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <LinkTimeCodeGeneration />
+      <TargetMachine>MachineX64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="archive.cpp" />
+    <ClCompile Include="arcread.cpp" />
+    <ClCompile Include="blake2s.cpp" />
+    <ClCompile Include="cmddata.cpp" />
+    <ClCompile Include="consio.cpp" />
+    <ClCompile Include="crc.cpp" />
+    <ClCompile Include="crypt.cpp" />
+    <ClCompile Include="dll.cpp" />
+    <ClCompile Include="encname.cpp" />
+    <ClCompile Include="errhnd.cpp" />
+    <ClCompile Include="extinfo.cpp" />
+    <ClCompile Include="extract.cpp" />
+    <ClCompile Include="filcreat.cpp" />
+    <ClCompile Include="file.cpp" />
+    <ClCompile Include="filefn.cpp" />
+    <ClCompile Include="filestr.cpp" />
+    <ClCompile Include="find.cpp" />
+    <ClCompile Include="getbits.cpp" />
+    <ClCompile Include="global.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+      </PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+      </PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+      </PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+      </PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='release_nocrypt|Win32'">
+      </PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='release_nocrypt|x64'">
+      </PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="hash.cpp" />
+    <ClCompile Include="headers.cpp" />
+    <ClCompile Include="isnt.cpp" />
+    <ClCompile Include="match.cpp" />
+    <ClCompile Include="options.cpp" />
+    <ClCompile Include="pathfn.cpp" />
+    <ClCompile Include="qopen.cpp" />
+    <ClCompile Include="rar.cpp" />
+    <ClCompile Include="rarpch.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='release_nocrypt|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='release_nocrypt|x64'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="rarvm.cpp" />
+    <ClCompile Include="rawread.cpp" />
+    <ClCompile Include="rdwrfn.cpp" />
+    <ClCompile Include="rijndael.cpp" />
+    <ClCompile Include="rs.cpp" />
+    <ClCompile Include="rs16.cpp" />
+    <ClCompile Include="scantree.cpp" />
+    <ClCompile Include="secpassword.cpp" />
+    <ClCompile Include="sha1.cpp" />
+    <ClCompile Include="sha256.cpp" />
+    <ClCompile Include="smallfn.cpp" />
+    <ClCompile Include="strfn.cpp" />
+    <ClCompile Include="strlist.cpp" />
+    <ClCompile Include="system.cpp" />
+    <ClCompile Include="threadpool.cpp" />
+    <ClCompile Include="timefn.cpp" />
+    <ClCompile Include="ui.cpp" />
+    <ClCompile Include="unicode.cpp" />
+    <ClCompile Include="unpack.cpp" />
+    <ClCompile Include="volume.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="rar.hpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="dll.rc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

reference/unrar/acknow.txt

@@ -0,0 +1,92 @@
+                           ACKNOWLEDGMENTS
+
+* We used "Screaming Fast Galois Field Arithmetic Using Intel
+  SIMD Instructions" paper by James S. Plank, Kevin M. Greenan
+  and Ethan L. Miller to improve Reed-Solomon coding performance.
+  Also we are grateful to Artem Drobanov and Bulat Ziganshin
+  for samples and ideas allowed to make Reed-Solomon coding
+  more efficient.
+
+* RAR text compression algorithm is based on Dmitry Shkarin PPMII
+  and Dmitry Subbotin carryless rangecoder public domain source code.
+  You may find it in ftp.elf.stuba.sk/pub/pc/pack.
+
+* RAR encryption includes parts of code from Szymon Stefanek
+  and Brian Gladman AES implementations also as Steve Reid SHA-1 source.
+
+  ---------------------------------------------------------------------------
+  Copyright (c) 2002, Dr Brian Gladman <                 >, Worcester, UK.
+  All rights reserved.
+
+  LICENSE TERMS
+
+  The free distribution and use of this software in both source and binary
+  form is allowed (with or without changes) provided that:
+
+    1. distributions of this source code include the above copyright
+       notice, this list of conditions and the following disclaimer;
+
+    2. distributions in binary form include the above copyright
+       notice, this list of conditions and the following disclaimer
+       in the documentation and/or other associated materials;
+
+    3. the copyright holder's name is not used to endorse products
+       built using this software without specific written permission.
+
+  ALTERNATIVELY, provided that this notice is retained in full, this product
+  may be distributed under the terms of the GNU General Public License (GPL),
+  in which case the provisions of the GPL apply INSTEAD OF those given above.
+
+  DISCLAIMER
+
+  This software is provided 'as is' with no explicit or implied warranties
+  in respect of its properties, including, but not limited to, correctness
+  and/or fitness for purpose.
+  ---------------------------------------------------------------------------
+
+  Source code of this package also as other cryptographic technology
+  and computing project related links are available on Brian Gladman's
+  web site: http://www.gladman.me.uk
+
+* RAR uses CRC32 function based on Intel Slicing-by-8 algorithm.
+  Original Intel Slicing-by-8 code is available here:
+
+    http://sourceforge.net/projects/slicing-by-8/
+
+  Original Intel Slicing-by-8 code is licensed under BSD License
+  available at http://www.opensource.org/licenses/bsd-license.html
+
+    Copyright (c) 2004-2006 Intel Corporation. 
+    All Rights Reserved
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+    
+    Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer
+    in the documentation and/or other materials provided with
+    the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+    HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+    OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+* RAR archives may optionally include BLAKE2sp hash ( https://blake2.net ),
+  designed by Jean-Philippe Aumasson, Samuel Neves, Zooko Wilcox-O'Hearn
+  and Christian Winnerlein.
+
+* Useful hints provided by Alexander Khoroshev and Bulat Ziganshin allowed
+  to significantly improve RAR compression and speed.

reference/unrar/arccmt.cpp

@@ -0,0 +1,166 @@
+static bool IsAnsiEscComment(const wchar *Data,size_t Size);
+
+bool Archive::GetComment(Array<wchar> *CmtData)
+{
+  if (!MainComment)
+    return false;
+  SaveFilePos SavePos(*this);
+
+#ifndef SFX_MODULE
+  uint CmtLength;
+  if (Format==RARFMT14)
+  {
+    Seek(SFXSize+SIZEOF_MAINHEAD14,SEEK_SET);
+    CmtLength=GetByte();
+    CmtLength+=(GetByte()<<8);
+  }
+  else
+#endif
+  {
+    if (MainHead.CommentInHeader)
+    {
+      // Old style (RAR 2.9) archive comment embedded into the main 
+      // archive header.
+      Seek(SFXSize+SIZEOF_MARKHEAD3+SIZEOF_MAINHEAD3,SEEK_SET);
+      ReadHeader();
+    }
+    else
+    {
+      // Current (RAR 3.0+) version of archive comment.
+      Seek(GetStartPos(),SEEK_SET);
+      return SearchSubBlock(SUBHEAD_TYPE_CMT)!=0 && ReadCommentData(CmtData);
+    }
+#ifndef SFX_MODULE
+    // Old style (RAR 2.9) comment header embedded into the main 
+    // archive header.
+    if (BrokenHeader)
+    {
+      uiMsg(UIERROR_CMTBROKEN,FileName);
+      return false;
+    }
+    CmtLength=CommHead.HeadSize-SIZEOF_COMMHEAD;
+#endif
+  }
+#ifndef SFX_MODULE
+  if (Format==RARFMT14 && MainHead.PackComment || Format!=RARFMT14 && CommHead.Method!=0x30)
+  {
+    if (Format!=RARFMT14 && (CommHead.UnpVer < 15 || CommHead.UnpVer > VER_UNPACK || CommHead.Method > 0x35))
+      return false;
+    ComprDataIO DataIO;
+    DataIO.SetTestMode(true);
+    uint UnpCmtLength;
+    if (Format==RARFMT14)
+    {
+#ifdef RAR_NOCRYPT
+      return false;
+#else
+      UnpCmtLength=GetByte();
+      UnpCmtLength+=(GetByte()<<8);
+      CmtLength-=2;
+      DataIO.SetCmt13Encryption();
+      CommHead.UnpVer=15;
+#endif
+    }
+    else
+      UnpCmtLength=CommHead.UnpSize;
+    DataIO.SetFiles(this,NULL);
+    DataIO.EnableShowProgress(false);
+    DataIO.SetPackedSizeToRead(CmtLength);
+    DataIO.UnpHash.Init(HASH_CRC32,1);
+
+    Unpack CmtUnpack(&DataIO);
+    CmtUnpack.Init(0x10000,false);
+    CmtUnpack.SetDestSize(UnpCmtLength);
+    CmtUnpack.DoUnpack(CommHead.UnpVer,false);
+
+    if (Format!=RARFMT14 && (DataIO.UnpHash.GetCRC32()&0xffff)!=CommHead.CommCRC)
+    {
+      uiMsg(UIERROR_CMTBROKEN,FileName);
+      return false;
+    }
+    else
+    {
+      byte *UnpData;
+      size_t UnpDataSize;
+      DataIO.GetUnpackedData(&UnpData,&UnpDataSize);
+#ifdef _WIN_ALL
+      // If we ever decide to extend it to Android, we'll need to alloc
+      // 4x memory for OEM to UTF-8 output here.
+      OemToCharBuffA((char *)UnpData,(char *)UnpData,(DWORD)UnpDataSize);
+#endif
+      CmtData->Alloc(UnpDataSize+1);
+      memset(CmtData->Addr(0),0,CmtData->Size()*sizeof(wchar));
+      CharToWide((char *)UnpData,CmtData->Addr(0),CmtData->Size());
+      CmtData->Alloc(wcslen(CmtData->Addr(0)));
+    }
+  }
+  else
+  {
+    if (CmtLength==0)
+      return false;
+    Array<byte> CmtRaw(CmtLength);
+    Read(&CmtRaw[0],CmtLength);
+
+    if (Format!=RARFMT14 && CommHead.CommCRC!=(~CRC32(0xffffffff,&CmtRaw[0],CmtLength)&0xffff))
+    {
+      uiMsg(UIERROR_CMTBROKEN,FileName);
+      return false;
+    }
+    CmtData->Alloc(CmtLength+1);
+    CmtRaw.Push(0);
+#ifdef _WIN_ALL
+    // If we ever decide to extend it to Android, we'll need to alloc
+    // 4x memory for OEM to UTF-8 output here.
+    OemToCharA((char *)&CmtRaw[0],(char *)&CmtRaw[0]);
+#endif
+    CharToWide((char *)&CmtRaw[0],CmtData->Addr(0),CmtLength);
+    CmtData->Alloc(wcslen(CmtData->Addr(0)));
+  }
+#endif
+  return CmtData->Size() > 0;
+}
+
+
+bool Archive::ReadCommentData(Array<wchar> *CmtData)
+{
+  Array<byte> CmtRaw;
+  if (!ReadSubData(&CmtRaw,NULL))
+    return false;
+  size_t CmtSize=CmtRaw.Size();
+  CmtRaw.Push(0);
+  CmtData->Alloc(CmtSize+1);
+  if (Format==RARFMT50)
+    UtfToWide((char *)&CmtRaw[0],CmtData->Addr(0),CmtData->Size());
+  else
+    if ((SubHead.SubFlags & SUBHEAD_FLAGS_CMT_UNICODE)!=0)
+    {
+      RawToWide(&CmtRaw[0],CmtData->Addr(0),CmtSize/2);
+      (*CmtData)[CmtSize/2]=0;
+
+    }
+    else
+    {
+      CharToWide((char *)&CmtRaw[0],CmtData->Addr(0),CmtData->Size());
+    }
+  CmtData->Alloc(wcslen(CmtData->Addr(0))); // Set buffer size to actual comment length.
+  return true;
+}
+
+
+void Archive::ViewComment()
+{
+  if (Cmd->DisableComment)
+    return;
+  Array<wchar> CmtBuf;
+  if (GetComment(&CmtBuf)) // In GUI too, so "Test" command detects broken comments.
+  {
+    size_t CmtSize=CmtBuf.Size();
+    wchar *ChPtr=wcschr(&CmtBuf[0],0x1A);
+    if (ChPtr!=NULL)
+      CmtSize=ChPtr-&CmtBuf[0];
+    mprintf(L"\n");
+    OutComment(&CmtBuf[0],CmtSize);
+  }
+}
+
+

reference/unrar/archive.cpp

@@ -0,0 +1,332 @@
+#include "rar.hpp"
+
+#include "arccmt.cpp"
+
+
+Archive::Archive(RAROptions *InitCmd)
+{
+  Cmd=NULL; // Just in case we'll have an exception in 'new' below.
+
+  DummyCmd=(InitCmd==NULL);
+  Cmd=DummyCmd ? (new RAROptions):InitCmd;
+
+  OpenShared=Cmd->OpenShared;
+  Format=RARFMT15;
+  Solid=false;
+  Volume=false;
+  MainComment=false;
+  Locked=false;
+  Signed=false;
+  FirstVolume=false;
+  NewNumbering=false;
+  SFXSize=0;
+  LatestTime.Reset();
+  Protected=false;
+  Encrypted=false;
+  FailedHeaderDecryption=false;
+  BrokenHeader=false;
+  LastReadBlock=0;
+
+  CurBlockPos=0;
+  NextBlockPos=0;
+
+  RecoverySize=-1;
+  RecoveryPercent=-1;
+
+  memset(&MainHead,0,sizeof(MainHead));
+  memset(&CryptHead,0,sizeof(CryptHead));
+  memset(&EndArcHead,0,sizeof(EndArcHead));
+
+  VolNumber=0;
+  VolWrite=0;
+  AddingFilesSize=0;
+  AddingHeadersSize=0;
+  *FirstVolumeName=0;
+
+  Splitting=false;
+  NewArchive=false;
+
+  SilentOpen=false;
+
+}
+
+
+Archive::~Archive()
+{
+  if (DummyCmd)
+    delete Cmd;
+}
+
+
+void Archive::CheckArc(bool EnableBroken)
+{
+  if (!IsArchive(EnableBroken))
+  {
+    // If FailedHeaderDecryption is set, we already reported that archive
+    // password is incorrect.
+    if (!FailedHeaderDecryption)
+      uiMsg(UIERROR_BADARCHIVE,FileName);
+    ErrHandler.Exit(RARX_FATAL);
+  }
+}
+
+
+#if !defined(SFX_MODULE)
+void Archive::CheckOpen(const wchar *Name)
+{
+  TOpen(Name);
+  CheckArc(false);
+}
+#endif
+
+
+bool Archive::WCheckOpen(const wchar *Name)
+{
+  if (!WOpen(Name))
+    return false;
+  if (!IsArchive(false))
+  {
+    uiMsg(UIERROR_BADARCHIVE,FileName);
+    Close();
+    return false;
+  }
+  return true;
+}
+
+
+RARFORMAT Archive::IsSignature(const byte *D,size_t Size)
+{
+  RARFORMAT Type=RARFMT_NONE;
+  if (Size>=1 && D[0]==0x52)
+#ifndef SFX_MODULE
+    if (Size>=4 && D[1]==0x45 && D[2]==0x7e && D[3]==0x5e)
+      Type=RARFMT14;
+    else
+#endif
+      if (Size>=7 && D[1]==0x61 && D[2]==0x72 && D[3]==0x21 && D[4]==0x1a && D[5]==0x07)
+      {
+        // We check the last signature byte, so we can return a sensible
+        // warning in case we'll want to change the archive format
+        // sometimes in the future.
+        if (D[6]==0)
+          Type=RARFMT15;
+        else
+          if (D[6]==1)
+            Type=RARFMT50;
+          else
+            if (D[6]==2)
+              Type=RARFMT_FUTURE;
+      }
+  return Type;
+}
+
+
+bool Archive::IsArchive(bool EnableBroken)
+{
+  Encrypted=false;
+  BrokenHeader=false; // Might be left from previous volume.
+  
+#ifndef SFX_MODULE
+  if (IsDevice())
+  {
+    uiMsg(UIERROR_INVALIDNAME,FileName,FileName);
+    return false;
+  }
+#endif
+  if (Read(MarkHead.Mark,SIZEOF_MARKHEAD3)!=SIZEOF_MARKHEAD3)
+    return false;
+  SFXSize=0;
+  
+  RARFORMAT Type;
+  if ((Type=IsSignature(MarkHead.Mark,SIZEOF_MARKHEAD3))!=RARFMT_NONE)
+  {
+    Format=Type;
+    if (Format==RARFMT14)
+      Seek(Tell()-SIZEOF_MARKHEAD3,SEEK_SET);
+  }
+  else
+  {
+    Array<char> Buffer(MAXSFXSIZE);
+    long CurPos=(long)Tell();
+    int ReadSize=Read(&Buffer[0],Buffer.Size()-16);
+    for (int I=0;I<ReadSize;I++)
+      if (Buffer[I]==0x52 && (Type=IsSignature((byte *)&Buffer[I],ReadSize-I))!=RARFMT_NONE)
+      {
+        Format=Type;
+        if (Format==RARFMT14 && I>0 && CurPos<28 && ReadSize>31)
+        {
+          char *D=&Buffer[28-CurPos];
+          if (D[0]!=0x52 || D[1]!=0x53 || D[2]!=0x46 || D[3]!=0x58)
+            continue;
+        }
+        SFXSize=CurPos+I;
+        Seek(SFXSize,SEEK_SET);
+        if (Format==RARFMT15 || Format==RARFMT50)
+          Read(MarkHead.Mark,SIZEOF_MARKHEAD3);
+        break;
+      }
+    if (SFXSize==0)
+      return false;
+  }
+  if (Format==RARFMT_FUTURE)
+  {
+    uiMsg(UIERROR_NEWRARFORMAT,FileName);
+    return false;
+  }
+  if (Format==RARFMT50) // RAR 5.0 signature is by one byte longer.
+  {
+    Read(MarkHead.Mark+SIZEOF_MARKHEAD3,1);
+    if (MarkHead.Mark[SIZEOF_MARKHEAD3]!=0)
+      return false;
+    MarkHead.HeadSize=SIZEOF_MARKHEAD5;
+  }
+  else
+    MarkHead.HeadSize=SIZEOF_MARKHEAD3;
+
+#ifdef RARDLL
+  // If callback function is not set, we cannot get the password,
+  // so we skip the initial header processing for encrypted header archive.
+  // It leads to skipped archive comment, but the rest of archive data
+  // is processed correctly.
+  if (Cmd->Callback==NULL)
+    SilentOpen=true;
+#endif
+
+  // Skip the archive encryption header if any and read the main header.
+  while (ReadHeader()!=0)
+  {
+    HEADER_TYPE Type=GetHeaderType();
+    // In RAR 5.0 we need to quit after reading HEAD_CRYPT if we wish to
+    // avoid the password prompt.
+    if (Type==HEAD_MAIN || SilentOpen && Type==HEAD_CRYPT)
+      break;
+    SeekToNext();
+  }
+
+  // This check allows to make RS based recovery even if password is incorrect.
+  // But we should not do it for EnableBroken or we'll get 'not RAR archive'
+  // messages when extracting encrypted archives with wrong password.
+  if (FailedHeaderDecryption && !EnableBroken)
+    return false;
+
+  SeekToNext();
+  if (BrokenHeader) // Main archive header is corrupt.
+  {
+    uiMsg(UIERROR_MHEADERBROKEN,FileName);
+    if (!EnableBroken)
+      return false;
+  }
+
+  MainComment=MainHead.CommentInHeader;
+
+  // If we process non-encrypted archive or can request a password,
+  // we set 'first volume' flag based on file attributes below.
+  // It is necessary for RAR 2.x archives, which did not have 'first volume'
+  // flag in main header. Also for all RAR formats we need to scan until
+  // first file header to set "comment" flag when reading service header.
+  // Unless we are in silent mode, we need to know about presence of comment
+  // immediately after IsArchive call.
+  if (!SilentOpen || !Encrypted)
+  {
+    SaveFilePos SavePos(*this);
+    int64 SaveCurBlockPos=CurBlockPos,SaveNextBlockPos=NextBlockPos;
+    HEADER_TYPE SaveCurHeaderType=CurHeaderType;
+
+    while (ReadHeader()!=0)
+    {
+      HEADER_TYPE HeaderType=GetHeaderType();
+      if (HeaderType==HEAD_SERVICE)
+      {
+        // If we have a split service headers, it surely indicates non-first
+        // volume. But not split service header does not guarantee the first
+        // volume, because we can have split file after non-split archive
+        // comment. So we do not quit from loop here.
+        FirstVolume=Volume && !SubHead.SplitBefore;
+      }
+      else
+        if (HeaderType==HEAD_FILE)
+        {
+          FirstVolume=Volume && !FileHead.SplitBefore;
+          break;
+        }
+        else
+          if (HeaderType==HEAD_ENDARC) // Might happen if archive contains only a split service header.
+            break;
+      SeekToNext();
+    }
+    CurBlockPos=SaveCurBlockPos;
+    NextBlockPos=SaveNextBlockPos;
+    CurHeaderType=SaveCurHeaderType;
+  }
+  if (!Volume || FirstVolume)
+    wcscpy(FirstVolumeName,FileName);
+
+  return true;
+}
+
+
+
+
+void Archive::SeekToNext()
+{
+  Seek(NextBlockPos,SEEK_SET);
+}
+
+
+
+
+
+
+// Calculate the block size including encryption fields and padding if any.
+uint Archive::FullHeaderSize(size_t Size)
+{
+  if (Encrypted)
+  {
+    Size = ALIGN_VALUE(Size, CRYPT_BLOCK_SIZE); // Align to encryption block size.
+    if (Format == RARFMT50)
+      Size += SIZE_INITV;
+    else
+      Size += SIZE_SALT30;
+  }
+  return uint(Size);
+}
+
+
+
+
+#ifdef USE_QOPEN
+bool Archive::Open(const wchar *Name,uint Mode)
+{
+  // Important if we reuse Archive object and it has virtual QOpen
+  // file position not matching real. For example, for 'l -v volname'.
+  QOpen.Unload();
+
+  return File::Open(Name,Mode);
+}
+
+
+int Archive::Read(void *Data,size_t Size)
+{
+  size_t Result;
+  if (QOpen.Read(Data,Size,Result))
+    return (int)Result;
+  return File::Read(Data,Size);
+}
+
+
+void Archive::Seek(int64 Offset,int Method)
+{
+  if (!QOpen.Seek(Offset,Method))
+    File::Seek(Offset,Method);
+}
+
+
+int64 Archive::Tell()
+{
+  int64 QPos;
+  if (QOpen.Tell(&QPos))
+    return QPos;
+  return File::Tell();
+}
+#endif
+

reference/unrar/archive.hpp

@@ -0,0 +1,151 @@
+#ifndef _RAR_ARCHIVE_
+#define _RAR_ARCHIVE_
+
+class PPack;
+class RawRead;
+class RawWrite;
+
+enum NOMODIFY_FLAGS 
+{
+  NMDF_ALLOWLOCK=1,NMDF_ALLOWANYVOLUME=2,NMDF_ALLOWFIRSTVOLUME=4
+};
+
+enum RARFORMAT {RARFMT_NONE,RARFMT14,RARFMT15,RARFMT50,RARFMT_FUTURE};
+
+enum ADDSUBDATA_FLAGS
+{
+  ASDF_SPLIT          = 1, // Allow to split archive just before header if necessary.
+  ASDF_COMPRESS       = 2, // Allow to compress data following subheader.
+  ASDF_CRYPT          = 4, // Encrypt data after subheader if password is set.
+  ASDF_CRYPTIFHEADERS = 8  // Encrypt data after subheader only in -hp mode.
+};
+
+class Archive:public File
+{
+  private:
+    void UpdateLatestTime(FileHeader *CurBlock);
+    void ConvertNameCase(wchar *Name);
+    void ConvertFileHeader(FileHeader *hd);
+    void WriteBlock50(HEADER_TYPE HeaderType,BaseBlock *wb,bool OnlySetSize,bool NonFinalWrite);
+    size_t ReadHeader14();
+    size_t ReadHeader15();
+    size_t ReadHeader50();
+    void ProcessExtra50(RawRead *Raw,size_t ExtraSize,BaseBlock *bb);
+    void RequestArcPassword();
+    void UnexpEndArcMsg();
+    void BrokenHeaderMsg();
+    void UnkEncVerMsg(const wchar *Name);
+    void UnkEncVerMsg();
+    bool ReadCommentData(Array<wchar> *CmtData);
+
+#if !defined(RAR_NOCRYPT)
+    CryptData HeadersCrypt;
+#endif
+    ComprDataIO SubDataIO;
+    bool DummyCmd;
+    RAROptions *Cmd;
+
+    int64 RecoverySize;
+    int RecoveryPercent;
+
+    RarTime LatestTime;
+    int LastReadBlock;
+    HEADER_TYPE CurHeaderType;
+
+    bool SilentOpen;
+#ifdef USE_QOPEN
+    QuickOpen QOpen;
+#endif
+  public:
+    Archive(RAROptions *InitCmd=NULL);
+    ~Archive();
+    static RARFORMAT IsSignature(const byte *D,size_t Size);
+    bool IsArchive(bool EnableBroken);
+    size_t SearchBlock(HEADER_TYPE HeaderType);
+    size_t SearchSubBlock(const wchar *Type);
+    size_t SearchRR();
+    void WriteBlock(HEADER_TYPE HeaderType,BaseBlock *wb=NULL,bool OnlySetSize=false,bool NonFinalWrite=false);
+    void SetBlockSize(HEADER_TYPE HeaderType,BaseBlock *wb=NULL) {WriteBlock(HeaderType,wb,true);}
+    size_t ReadHeader();
+    void CheckArc(bool EnableBroken);
+    void CheckOpen(const wchar *Name);
+    bool WCheckOpen(const wchar *Name);
+    bool GetComment(Array<wchar> *CmtData);
+    void ViewComment();
+    void SetLatestTime(RarTime *NewTime);
+    void SeekToNext();
+    bool CheckAccess();
+    bool IsArcDir();
+    void ConvertAttributes();
+    void VolSubtractHeaderSize(size_t SubSize);
+    uint FullHeaderSize(size_t Size);
+    int64 GetStartPos();
+    void AddSubData(byte *SrcData,uint64 DataSize,File *SrcFile,
+         const wchar *Name,uint Flags);
+    bool ReadSubData(Array<byte> *UnpData,File *DestFile);
+    HEADER_TYPE GetHeaderType() {return CurHeaderType;};
+    RAROptions* GetRAROptions() {return Cmd;}
+    void SetSilentOpen(bool Mode) {SilentOpen=Mode;}
+#if 0
+    void GetRecoveryInfo(bool Required,int64 *Size,int *Percent);
+#endif
+#ifdef USE_QOPEN
+    bool Open(const wchar *Name,uint Mode=FMF_READ);
+    int Read(void *Data,size_t Size);
+    void Seek(int64 Offset,int Method);
+    int64 Tell();
+    void QOpenUnload() {QOpen.Unload();}
+#endif
+
+    BaseBlock ShortBlock;
+    MarkHeader MarkHead;
+    MainHeader MainHead;
+    CryptHeader CryptHead;
+    FileHeader FileHead;
+    EndArcHeader EndArcHead;
+    SubBlockHeader SubBlockHead;
+    FileHeader SubHead;
+    CommentHeader CommHead;
+    ProtectHeader ProtectHead;
+    AVHeader AVHead;
+    SignHeader SignHead;
+    UnixOwnersHeader UOHead;
+    MacFInfoHeader MACHead;
+    EAHeader EAHead;
+    StreamHeader StreamHead;
+
+    int64 CurBlockPos;
+    int64 NextBlockPos;
+
+    RARFORMAT Format;
+    bool Solid;
+    bool Volume;
+    bool MainComment;
+    bool Locked;
+    bool Signed;
+    bool FirstVolume;
+    bool NewNumbering;
+    bool Protected;
+    bool Encrypted;
+    size_t SFXSize;
+    bool BrokenHeader;
+    bool FailedHeaderDecryption;
+
+#if !defined(RAR_NOCRYPT)
+    byte ArcSalt[SIZE_SALT50];
+#endif
+
+    bool Splitting;
+
+    uint VolNumber;
+    int64 VolWrite;
+    uint64 AddingFilesSize;
+    uint64 AddingHeadersSize;
+
+    bool NewArchive;
+
+    wchar FirstVolumeName[NM];
+};
+
+
+#endif

reference/unrar/array.hpp

@@ -0,0 +1,191 @@
+#ifndef _RAR_ARRAY_
+#define _RAR_ARRAY_
+
+extern ErrorHandler ErrHandler;
+
+template <class T> class Array
+{
+  private:
+    T *Buffer;
+    size_t BufSize;
+    size_t AllocSize;
+    size_t MaxSize;
+    bool Secure; // Clean memory if true.
+  public:
+    Array();
+    Array(size_t Size);
+    Array(const Array &Src); // Copy constructor.
+    ~Array();
+    inline void CleanData();
+    inline T& operator [](size_t Item) const;
+    inline T* operator + (size_t Pos);
+    inline size_t Size(); // Returns the size in items, not in bytes.
+    void Add(size_t Items);
+    void Alloc(size_t Items);
+    void Reset();
+    void SoftReset();
+    void operator = (Array<T> &Src);
+    void Push(T Item);
+    void Append(T *Item,size_t Count);
+    T* Addr(size_t Item) {return Buffer+Item;}
+    void SetMaxSize(size_t Size) {MaxSize=Size;}
+    T* Begin() {return Buffer;}
+    T* End() {return Buffer==NULL ? NULL:Buffer+BufSize;}
+    void SetSecure() {Secure=true;}
+};
+
+
+template <class T> void Array<T>::CleanData()
+{
+  Buffer=NULL;
+  BufSize=0;
+  AllocSize=0;
+  MaxSize=0;
+  Secure=false;
+}
+
+
+template <class T> Array<T>::Array()
+{
+  CleanData();
+}
+
+
+template <class T> Array<T>::Array(size_t Size)
+{
+  CleanData();
+  Add(Size);
+}
+
+
+// Copy constructor in case we need to pass an object as value.
+template <class T> Array<T>::Array(const Array &Src)
+{
+  CleanData();
+  Alloc(Src.BufSize);
+  if (Src.BufSize!=0)
+    memcpy((void *)Buffer,(void *)Src.Buffer,Src.BufSize*sizeof(T));
+}
+
+
+template <class T> Array<T>::~Array()
+{
+  if (Buffer!=NULL)
+  {
+    if (Secure)
+      cleandata(Buffer,AllocSize*sizeof(T));
+    free(Buffer);
+  }
+}
+
+
+template <class T> inline T& Array<T>::operator [](size_t Item) const
+{
+  return Buffer[Item];
+}
+
+
+template <class T> inline T* Array<T>::operator +(size_t Pos)
+{
+  return Buffer+Pos;
+}
+
+
+template <class T> inline size_t Array<T>::Size()
+{
+  return BufSize;
+}
+
+
+template <class T> void Array<T>::Add(size_t Items)
+{
+  BufSize+=Items;
+  if (BufSize>AllocSize)
+  {
+    if (MaxSize!=0 && BufSize>MaxSize)
+    {
+      ErrHandler.GeneralErrMsg(L"Maximum allowed array size (%u) is exceeded",MaxSize);
+      ErrHandler.MemoryError();
+    }
+
+    size_t Suggested=AllocSize+AllocSize/4+32;
+    size_t NewSize=Max(BufSize,Suggested);
+
+    T *NewBuffer;
+    if (Secure)
+    {
+      NewBuffer=(T *)malloc(NewSize*sizeof(T));
+      if (NewBuffer==NULL)
+        ErrHandler.MemoryError();
+      if (Buffer!=NULL)
+      {
+        memcpy(NewBuffer,Buffer,AllocSize*sizeof(T));
+        cleandata(Buffer,AllocSize*sizeof(T));
+        free(Buffer);
+      }
+    }
+    else
+    {
+      NewBuffer=(T *)realloc(Buffer,NewSize*sizeof(T));
+      if (NewBuffer==NULL)
+        ErrHandler.MemoryError();
+    }
+    Buffer=NewBuffer;
+    AllocSize=NewSize;
+  }
+}
+
+
+template <class T> void Array<T>::Alloc(size_t Items)
+{
+  if (Items>AllocSize)
+    Add(Items-BufSize);
+  else
+    BufSize=Items;
+}
+
+
+template <class T> void Array<T>::Reset()
+{
+  if (Buffer!=NULL)
+  {
+    free(Buffer);
+    Buffer=NULL;
+  }
+  BufSize=0;
+  AllocSize=0;
+}
+
+
+// Reset buffer size, but preserve already allocated memory if any,
+// so we can reuse it without wasting time to allocation.
+template <class T> void Array<T>::SoftReset()
+{
+  BufSize=0;
+}
+
+
+template <class T> void Array<T>::operator =(Array<T> &Src)
+{
+  Reset();
+  Alloc(Src.BufSize);
+  if (Src.BufSize!=0)
+    memcpy((void *)Buffer,(void *)Src.Buffer,Src.BufSize*sizeof(T));
+}
+
+
+template <class T> void Array<T>::Push(T Item)
+{
+  Add(1);
+  (*this)[Size()-1]=Item;
+}
+
+
+template <class T> void Array<T>::Append(T *Items,size_t Count)
+{
+  size_t CurSize=Size();
+  Add(Count);
+  memcpy(Buffer+CurSize,Items,Count*sizeof(T));
+}
+
+#endif

reference/unrar/blake2s.cpp

@@ -0,0 +1,183 @@
+// Based on public domain code written in 2012 by Samuel Neves
+
+#include "rar.hpp"
+
+#ifdef USE_SSE
+#include "blake2s_sse.cpp"
+#endif
+
+static void blake2s_init_param( blake2s_state *S, uint32 node_offset, uint32 node_depth);
+static void blake2s_update( blake2s_state *S, const byte *in, size_t inlen );
+static void blake2s_final( blake2s_state *S, byte *digest );
+
+#include "blake2sp.cpp"
+
+static const uint32 blake2s_IV[8] =
+{
+  0x6A09E667UL, 0xBB67AE85UL, 0x3C6EF372UL, 0xA54FF53AUL,
+  0x510E527FUL, 0x9B05688CUL, 0x1F83D9ABUL, 0x5BE0CD19UL
+};
+
+static const byte blake2s_sigma[10][16] =
+{
+  {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 } ,
+  { 14, 10,  4,  8,  9, 15, 13,  6,  1, 12,  0,  2, 11,  7,  5,  3 } ,
+  { 11,  8, 12,  0,  5,  2, 15, 13, 10, 14,  3,  6,  7,  1,  9,  4 } ,
+  {  7,  9,  3,  1, 13, 12, 11, 14,  2,  6,  5, 10,  4,  0, 15,  8 } ,
+  {  9,  0,  5,  7,  2,  4, 10, 15, 14,  1, 11, 12,  6,  8,  3, 13 } ,
+  {  2, 12,  6, 10,  0, 11,  8,  3,  4, 13,  7,  5, 15, 14,  1,  9 } ,
+  { 12,  5,  1, 15, 14, 13,  4, 10,  0,  7,  6,  3,  9,  2,  8, 11 } ,
+  { 13, 11,  7, 14, 12,  1,  3,  9,  5,  0, 15,  4,  8,  6,  2, 10 } ,
+  {  6, 15, 14,  9, 11,  3,  0,  8, 12,  2, 13,  7,  1,  4, 10,  5 } ,
+  { 10,  2,  8,  4,  7,  6,  1,  5, 15, 11,  9, 14,  3, 12, 13 , 0 } ,
+};
+
+static inline void blake2s_set_lastnode( blake2s_state *S )
+{
+  S->f[1] = ~0U;
+}
+
+
+/* Some helper functions, not necessarily useful */
+static inline void blake2s_set_lastblock( blake2s_state *S )
+{
+  if( S->last_node ) blake2s_set_lastnode( S );
+
+  S->f[0] = ~0U;
+}
+
+
+static inline void blake2s_increment_counter( blake2s_state *S, const uint32 inc )
+{
+  S->t[0] += inc;
+  S->t[1] += ( S->t[0] < inc );
+}
+
+
+/* init2 xors IV with input parameter block */
+void blake2s_init_param( blake2s_state *S, uint32 node_offset, uint32 node_depth)
+{
+#ifdef USE_SSE
+  if (_SSE_Version>=SSE_SSE2)
+    blake2s_init_sse();
+#endif
+
+  S->init(); // Clean data.
+  for( int i = 0; i < 8; ++i )
+    S->h[i] = blake2s_IV[i];
+
+  S->h[0] ^= 0x02080020; // We use BLAKE2sp parameters block.
+  S->h[2] ^= node_offset;
+  S->h[3] ^= (node_depth<<16)|0x20000000;
+}
+
+
+#define G(r,i,m,a,b,c,d) \
+  a = a + b + m[blake2s_sigma[r][2*i+0]]; \
+  d = rotr32(d ^ a, 16); \
+  c = c + d; \
+  b = rotr32(b ^ c, 12); \
+  a = a + b + m[blake2s_sigma[r][2*i+1]]; \
+  d = rotr32(d ^ a, 8); \
+  c = c + d; \
+  b = rotr32(b ^ c, 7);
+
+
+static void blake2s_compress( blake2s_state *S, const byte block[BLAKE2S_BLOCKBYTES] )
+{
+  uint32 m[16];
+  uint32 v[16];
+
+  for( size_t i = 0; i < 16; ++i )
+    m[i] = RawGet4( block + i * 4 );
+
+  for( size_t i = 0; i < 8; ++i )
+    v[i] = S->h[i];
+
+  v[ 8] = blake2s_IV[0];
+  v[ 9] = blake2s_IV[1];
+  v[10] = blake2s_IV[2];
+  v[11] = blake2s_IV[3];
+  v[12] = S->t[0] ^ blake2s_IV[4];
+  v[13] = S->t[1] ^ blake2s_IV[5];
+  v[14] = S->f[0] ^ blake2s_IV[6];
+  v[15] = S->f[1] ^ blake2s_IV[7];
+
+  for ( uint r = 0; r <= 9; ++r ) // No gain on i7 if unrolled, but exe size grows.
+  {
+    G(r,0,m,v[ 0],v[ 4],v[ 8],v[12]);
+    G(r,1,m,v[ 1],v[ 5],v[ 9],v[13]);
+    G(r,2,m,v[ 2],v[ 6],v[10],v[14]);
+    G(r,3,m,v[ 3],v[ 7],v[11],v[15]);
+    G(r,4,m,v[ 0],v[ 5],v[10],v[15]);
+    G(r,5,m,v[ 1],v[ 6],v[11],v[12]);
+    G(r,6,m,v[ 2],v[ 7],v[ 8],v[13]);
+    G(r,7,m,v[ 3],v[ 4],v[ 9],v[14]);
+  }
+
+  for( size_t i = 0; i < 8; ++i )
+    S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
+}
+
+
+void blake2s_update( blake2s_state *S, const byte *in, size_t inlen )
+{
+  while( inlen > 0 )
+  {
+    size_t left = S->buflen;
+    size_t fill = 2 * BLAKE2S_BLOCKBYTES - left;
+
+    if( inlen > fill )
+    {
+      memcpy( S->buf + left, in, fill ); // Fill buffer
+      S->buflen += fill;
+      blake2s_increment_counter( S, BLAKE2S_BLOCKBYTES );
+
+#ifdef USE_SSE
+#ifdef _WIN_32 // We use SSSE3 _mm_shuffle_epi8 only in x64 mode.
+      if (_SSE_Version>=SSE_SSE2)
+#else
+      if (_SSE_Version>=SSE_SSSE3)
+#endif
+        blake2s_compress_sse( S, S->buf );
+      else
+        blake2s_compress( S, S->buf ); // Compress
+#else
+      blake2s_compress( S, S->buf ); // Compress
+#endif
+      
+      memcpy( S->buf, S->buf + BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES ); // Shift buffer left
+      S->buflen -= BLAKE2S_BLOCKBYTES;
+      in += fill;
+      inlen -= fill;
+    }
+    else // inlen <= fill
+    {
+      memcpy( S->buf + left, in, (size_t)inlen );
+      S->buflen += (size_t)inlen; // Be lazy, do not compress
+      in += inlen;
+      inlen = 0;
+    }
+  }
+}
+
+
+void blake2s_final( blake2s_state *S, byte *digest )
+{
+  if( S->buflen > BLAKE2S_BLOCKBYTES )
+  {
+    blake2s_increment_counter( S, BLAKE2S_BLOCKBYTES );
+    blake2s_compress( S, S->buf );
+    S->buflen -= BLAKE2S_BLOCKBYTES;
+    memcpy( S->buf, S->buf + BLAKE2S_BLOCKBYTES, S->buflen );
+  }
+
+  blake2s_increment_counter( S, ( uint32 )S->buflen );
+  blake2s_set_lastblock( S );
+  memset( S->buf + S->buflen, 0, 2 * BLAKE2S_BLOCKBYTES - S->buflen ); /* Padding */
+  blake2s_compress( S, S->buf );
+
+  for( int i = 0; i < 8; ++i ) /* Output full hash  */
+    RawPut4( S->h[i], digest + 4 * i );
+}
+

reference/unrar/blake2s.hpp

@@ -0,0 +1,101 @@
+// Based on public domain code written in 2012 by Samuel Neves
+#ifndef _RAR_BLAKE2_
+#define _RAR_BLAKE2_
+
+#define BLAKE2_DIGEST_SIZE 32
+
+enum blake2s_constant
+{
+  BLAKE2S_BLOCKBYTES = 64,
+  BLAKE2S_OUTBYTES   = 32
+};
+
+
+// Alignment to 64 improves performance of both SSE and non-SSE versions.
+// Alignment to n*16 is required for SSE version, so we selected 64.
+// We use the custom alignment scheme instead of __declspec(align(x)),
+// because it is less compiler dependent. Also the compiler directive
+// does not help if structure is a member of class allocated through
+// 'new' operator.
+struct blake2s_state
+{
+  enum { BLAKE_ALIGNMENT = 64 };
+
+  // buffer and uint32 h[8], t[2], f[2];
+  enum { BLAKE_DATA_SIZE = 48 + 2 * BLAKE2S_BLOCKBYTES };
+
+  byte ubuf[BLAKE_DATA_SIZE + BLAKE_ALIGNMENT];
+
+  byte   *buf;       // byte   buf[2 * BLAKE2S_BLOCKBYTES].
+  uint32 *h, *t, *f; // uint32 h[8], t[2], f[2].
+
+  size_t   buflen;
+  byte  last_node;
+
+  blake2s_state()
+  {
+    set_pointers();
+  }
+
+  // Required when we declare and assign in the same command.
+  blake2s_state(blake2s_state &st)
+  {
+    set_pointers();
+    *this=st;
+  }
+
+  void set_pointers()
+  {
+    // Set aligned pointers. Must be done in constructor, not in Init(),
+    // so assignments like 'blake2sp_state res=blake2ctx' work correctly
+    // even if blake2sp_init is not called for 'res'.
+    buf = (byte *) ALIGN_VALUE(ubuf, BLAKE_ALIGNMENT);
+    h   = (uint32 *) (buf + 2 * BLAKE2S_BLOCKBYTES);
+    t   = h + 8;
+    f   = t + 2;
+  }
+
+  void init()
+  {
+    memset( ubuf, 0, sizeof( ubuf ) );
+    buflen = 0;
+    last_node = 0;
+  }
+
+  // Since we use pointers, the default = would work incorrectly.
+  blake2s_state& operator = (blake2s_state &st)
+  {
+    if (this != &st)
+    {
+      memcpy(buf, st.buf, BLAKE_DATA_SIZE);
+      buflen = st.buflen;
+      last_node = st.last_node;
+    }
+    return *this;
+  }
+};
+
+
+#ifdef RAR_SMP
+class ThreadPool;
+#endif
+
+struct blake2sp_state
+{
+  blake2s_state S[8];
+  blake2s_state R;
+  byte buf[8 * BLAKE2S_BLOCKBYTES];
+  size_t buflen;
+
+#ifdef RAR_SMP
+  ThreadPool *ThPool;
+  uint MaxThreads;
+#endif
+};
+
+void blake2sp_init( blake2sp_state *S );
+void blake2sp_update( blake2sp_state *S, const byte *in, size_t inlen );
+void blake2sp_final( blake2sp_state *S, byte *digest );
+
+#endif
+

reference/unrar/blake2s_sse.cpp

@@ -0,0 +1,129 @@
+// Based on public domain code written in 2012 by Samuel Neves
+
+extern const byte blake2s_sigma[10][16];
+
+// Initialization vector.
+static __m128i blake2s_IV_0_3, blake2s_IV_4_7;
+
+#ifdef _WIN_64
+// Constants for cyclic rotation. Used in 64-bit mode in mm_rotr_epi32 macro.
+static __m128i crotr8, crotr16;
+#endif
+
+static void blake2s_init_sse()
+{
+  // We cannot initialize these 128 bit variables in place when declaring
+  // them globally, because global scope initialization is performed before
+  // our SSE check and it would make code incompatible with older non-SSE2
+  // CPUs. Also we cannot initialize them as static inside of function
+  // using these variables, because SSE static initialization is not thread
+  // safe: first thread starts initialization and sets "init done" flag even
+  // if it is not done yet, second thread can attempt to access half-init
+  // SSE data. So we moved init code here.
+
+  blake2s_IV_0_3 = _mm_setr_epi32( 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A );
+  blake2s_IV_4_7 = _mm_setr_epi32( 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 );
+
+#ifdef _WIN_64
+  crotr8 = _mm_set_epi8( 12, 15, 14, 13, 8, 11, 10, 9, 4, 7, 6, 5, 0, 3, 2, 1 );
+  crotr16 = _mm_set_epi8( 13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2 );
+#endif
+}
+
+
+#define LOAD(p)  _mm_load_si128( (__m128i *)(p) )
+#define STORE(p,r) _mm_store_si128((__m128i *)(p), r)
+
+#ifdef _WIN_32
+// 32-bit mode has less SSE2 registers and in MSVC2008 it is more efficient
+// to not use _mm_shuffle_epi8 here.
+#define mm_rotr_epi32(r, c) ( \
+              _mm_xor_si128(_mm_srli_epi32( (r), c ),_mm_slli_epi32( (r), 32-c )) )
+#else
+#define mm_rotr_epi32(r, c) ( \
+                c==8 ? _mm_shuffle_epi8(r,crotr8) \
+              : c==16 ? _mm_shuffle_epi8(r,crotr16) \
+              : _mm_xor_si128(_mm_srli_epi32( (r), c ),_mm_slli_epi32( (r), 32-c )) )
+#endif
+
+
+#define G1(row1,row2,row3,row4,buf) \
+  row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
+  row4 = _mm_xor_si128( row4, row1 ); \
+  row4 =  mm_rotr_epi32(row4, 16); \
+  row3 = _mm_add_epi32( row3, row4 );   \
+  row2 = _mm_xor_si128( row2, row3 ); \
+  row2 =  mm_rotr_epi32(row2, 12);
+
+#define G2(row1,row2,row3,row4,buf) \
+  row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
+  row4 = _mm_xor_si128( row4, row1 ); \
+  row4 =  mm_rotr_epi32(row4, 8); \
+  row3 = _mm_add_epi32( row3, row4 );   \
+  row2 = _mm_xor_si128( row2, row3 ); \
+  row2 =  mm_rotr_epi32(row2, 7);
+
+#define DIAGONALIZE(row1,row2,row3,row4) \
+  row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(2,1,0,3) ); \
+  row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
+  row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(0,3,2,1) );
+
+#define UNDIAGONALIZE(row1,row2,row3,row4) \
+  row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(0,3,2,1) ); \
+  row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
+  row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(2,1,0,3) );
+
+#ifdef _WIN_64
+  // MSVC 2008 in x64 mode expands _mm_set_epi32 to store to stack and load
+  // from stack operations, which are slower than this code.
+  #define _mm_set_epi32(i3,i2,i1,i0) \
+    _mm_unpacklo_epi32(_mm_unpacklo_epi32(_mm_cvtsi32_si128(i0),_mm_cvtsi32_si128(i2)), \
+                       _mm_unpacklo_epi32(_mm_cvtsi32_si128(i1),_mm_cvtsi32_si128(i3)))
+#endif
+
+// Original BLAKE2 SSE4.1 message loading code was a little slower in x86 mode
+// and about the same in x64 mode in our test. Perhaps depends on compiler.
+// We also tried _mm_i32gather_epi32 and _mm256_i32gather_epi32 AVX2 gather
+// instructions here, but they did not show any speed gain on i7-6700K.
+#define SSE_ROUND(m,row,r) \
+{ \
+  __m128i buf; \
+  buf=_mm_set_epi32(m[blake2s_sigma[r][6]],m[blake2s_sigma[r][4]],m[blake2s_sigma[r][2]],m[blake2s_sigma[r][0]]); \
+  G1(row[0],row[1],row[2],row[3],buf); \
+  buf=_mm_set_epi32(m[blake2s_sigma[r][7]],m[blake2s_sigma[r][5]],m[blake2s_sigma[r][3]],m[blake2s_sigma[r][1]]); \
+  G2(row[0],row[1],row[2],row[3],buf); \
+  DIAGONALIZE(row[0],row[1],row[2],row[3]); \
+  buf=_mm_set_epi32(m[blake2s_sigma[r][14]],m[blake2s_sigma[r][12]],m[blake2s_sigma[r][10]],m[blake2s_sigma[r][8]]); \
+  G1(row[0],row[1],row[2],row[3],buf); \
+  buf=_mm_set_epi32(m[blake2s_sigma[r][15]],m[blake2s_sigma[r][13]],m[blake2s_sigma[r][11]],m[blake2s_sigma[r][9]]); \
+  G2(row[0],row[1],row[2],row[3],buf); \
+  UNDIAGONALIZE(row[0],row[1],row[2],row[3]); \
+}
+
+
+static int blake2s_compress_sse( blake2s_state *S, const byte block[BLAKE2S_BLOCKBYTES] )
+{
+  __m128i row[4];
+  __m128i ff0, ff1;
+  
+  const uint32  *m = ( uint32 * )block;
+
+  row[0] = ff0 = LOAD( &S->h[0] );
+  row[1] = ff1 = LOAD( &S->h[4] );
+
+  row[2] = blake2s_IV_0_3;
+  row[3] = _mm_xor_si128( blake2s_IV_4_7, LOAD( &S->t[0] ) );
+  SSE_ROUND( m, row, 0 );
+  SSE_ROUND( m, row, 1 );
+  SSE_ROUND( m, row, 2 );
+  SSE_ROUND( m, row, 3 );
+  SSE_ROUND( m, row, 4 );
+  SSE_ROUND( m, row, 5 );
+  SSE_ROUND( m, row, 6 );
+  SSE_ROUND( m, row, 7 );
+  SSE_ROUND( m, row, 8 );
+  SSE_ROUND( m, row, 9 );
+  STORE( &S->h[0], _mm_xor_si128( ff0, _mm_xor_si128( row[0], row[2] ) ) );
+  STORE( &S->h[4], _mm_xor_si128( ff1, _mm_xor_si128( row[1], row[3] ) ) );
+  return 0;
+}

reference/unrar/blake2sp.cpp

@@ -0,0 +1,153 @@
+/*
+   BLAKE2 reference source code package - reference C implementations
+
+   Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
+
+   To the extent possible under law, the author(s) have dedicated all copyright
+   and related and neighboring rights to this software to the public domain
+   worldwide. This software is distributed without any warranty.
+
+   You should have received a copy of the CC0 Public Domain Dedication along with
+   this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+*/
+
+#define PARALLELISM_DEGREE 8
+
+void blake2sp_init( blake2sp_state *S )
+{
+  memset( S->buf, 0, sizeof( S->buf ) );
+  S->buflen = 0;
+
+  blake2s_init_param( &S->R, 0, 1 ); // Init root.
+
+  for( uint i = 0; i < PARALLELISM_DEGREE; ++i )
+    blake2s_init_param( &S->S[i], i, 0 ); // Init leaf.
+
+  S->R.last_node = 1;
+  S->S[PARALLELISM_DEGREE - 1].last_node = 1;
+}
+
+
+struct Blake2ThreadData
+{
+  void Update();
+  blake2s_state *S;
+  const byte *in;
+  size_t inlen;
+};
+
+
+void Blake2ThreadData::Update()
+{
+  size_t inlen__ = inlen;
+  const byte *in__ = ( const byte * )in;
+
+  while( inlen__ >= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES )
+  {
+#ifdef USE_SSE
+    // We gain 5% in i7 SSE mode by prefetching next data block.
+    if (_SSE_Version>=SSE_SSE && inlen__ >= 2 * PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES)
+      _mm_prefetch((char*)(in__ +  PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES), _MM_HINT_T0);
+#endif
+    blake2s_update( S, in__, BLAKE2S_BLOCKBYTES );
+    in__ += PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
+    inlen__ -= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
+  }
+}
+
+#ifdef RAR_SMP
+THREAD_PROC(Blake2Thread)
+{
+  Blake2ThreadData *td=(Blake2ThreadData *)Data;
+  td->Update();
+}
+#endif
+
+
+void blake2sp_update( blake2sp_state *S, const byte *in, size_t inlen )
+{
+  size_t left = S->buflen;
+  size_t fill = sizeof( S->buf ) - left;
+
+  if( left && inlen >= fill )
+  {
+    memcpy( S->buf + left, in, fill );
+
+    for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
+      blake2s_update( &S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES );
+
+    in += fill;
+    inlen -= fill;
+    left = 0;
+  }
+
+  Blake2ThreadData btd_array[PARALLELISM_DEGREE];
+
+#ifdef RAR_SMP
+  uint ThreadNumber = inlen < 0x1000 ? 1 : S->MaxThreads;
+  
+  if (ThreadNumber==6 || ThreadNumber==7) // 6 and 7 threads work slower than 4 here.
+    ThreadNumber=4;
+#else
+  uint ThreadNumber=1;
+#endif
+
+  for (size_t id__=0;id__<PARALLELISM_DEGREE;)
+  {
+    for (uint Thread=0;Thread<ThreadNumber && id__<PARALLELISM_DEGREE;Thread++)
+    {
+      Blake2ThreadData *btd=btd_array+Thread;
+
+      btd->inlen = inlen;
+      btd->in = in + id__ * BLAKE2S_BLOCKBYTES;
+      btd->S = &S->S[id__];
+  
+#ifdef RAR_SMP
+      if (ThreadNumber>1)
+        S->ThPool->AddTask(Blake2Thread,(void*)btd);
+      else
+        btd->Update();
+#else
+      btd->Update();
+#endif
+      id__++;
+    }
+#ifdef RAR_SMP
+    if (S->ThPool!=NULL) // Can be NULL in -mt1 mode.
+      S->ThPool->WaitDone();
+#endif // RAR_SMP
+  }
+
+  in += inlen - inlen % ( PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES );
+  inlen %= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
+
+  if( inlen > 0 )
+    memcpy( S->buf + left, in, (size_t)inlen );
+
+  S->buflen = left + (size_t)inlen;
+}
+
+
+void blake2sp_final( blake2sp_state *S, byte *digest )
+{
+  byte hash[PARALLELISM_DEGREE][BLAKE2S_OUTBYTES];
+
+  for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
+  {
+    if( S->buflen > i * BLAKE2S_BLOCKBYTES )
+    {
+      size_t left = S->buflen - i * BLAKE2S_BLOCKBYTES;
+
+      if( left > BLAKE2S_BLOCKBYTES ) left = BLAKE2S_BLOCKBYTES;
+
+      blake2s_update( &S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, left );
+    }
+
+    blake2s_final( &S->S[i], hash[i] );
+  }
+
+  for( size_t i = 0; i < PARALLELISM_DEGREE; ++i )
+    blake2s_update( &S->R, hash[i], BLAKE2S_OUTBYTES );
+
+  blake2s_final( &S->R, digest );
+}

reference/unrar/cmddata.hpp

@@ -0,0 +1,64 @@
+#ifndef _RAR_CMDDATA_
+#define _RAR_CMDDATA_
+
+
+#define DefaultStoreList L"7z;ace;arj;bz2;cab;gz;jpeg;jpg;lha;lz;lzh;mp3;rar;taz;tgz;xz;z;zip;zipx"
+
+enum RAR_CMD_LIST_MODE {RCLM_AUTO,RCLM_REJECT_LISTS,RCLM_ACCEPT_LISTS};
+
+class CommandData:public RAROptions
+{
+  private:
+    void ProcessSwitchesString(const wchar *Str);
+    void ProcessSwitch(const wchar *Switch);
+    void BadSwitch(const wchar *Switch);
+    uint GetExclAttr(const wchar *Str);
+
+    bool FileLists;
+    bool NoMoreSwitches;
+    RAR_CMD_LIST_MODE ListMode;
+    bool BareOutput;
+  public:
+    CommandData();
+    void Init();
+
+    void ParseCommandLine(bool Preprocess,int argc, char *argv[]);
+    void ParseArg(wchar *ArgW);
+    void ParseDone();
+    void ParseEnvVar();
+    void ReadConfig();
+    void PreprocessArg(const wchar *Arg);
+    void OutTitle();
+    void OutHelp(RAR_EXIT ExitCode);
+    bool IsSwitch(int Ch);
+    bool ExclCheck(const wchar *CheckName,bool Dir,bool CheckFullPath,bool CheckInclList);
+    static bool CheckArgs(StringList *Args,bool Dir,const wchar *CheckName,bool CheckFullPath,int MatchMode);
+    bool ExclDirByAttr(uint FileAttr);
+    bool TimeCheck(RarTime &ft);
+    bool SizeCheck(int64 Size);
+    bool AnyFiltersActive();
+    int IsProcessFile(FileHeader &FileHead,bool *ExactMatch=NULL,int MatchType=MATCH_WILDSUBPATH,
+                      wchar *MatchedArg=NULL,uint MatchedArgSize=0);
+    void ProcessCommand();
+    void AddArcName(const wchar *Name);
+    bool GetArcName(wchar *Name,int MaxSize);
+    bool CheckWinSize();
+
+    int GetRecoverySize(const wchar *Str,int DefSize);
+
+#ifndef SFX_MODULE
+    void ReportWrongSwitches(RARFORMAT Format);
+#endif
+
+    wchar Command[NM+16];
+
+    wchar ArcName[NM];
+
+    StringList FileArgs;
+    StringList ExclArgs;
+    StringList InclArgs;
+    StringList ArcNames;
+    StringList StoreArgs;
+};
+
+#endif

reference/unrar/coder.cpp

@@ -0,0 +1,48 @@
+
+
+inline unsigned int RangeCoder::GetChar()
+{
+  return(UnpackRead->GetChar());
+}
+
+
+void RangeCoder::InitDecoder(Unpack *UnpackRead)
+{
+  RangeCoder::UnpackRead=UnpackRead;
+
+  low=code=0;
+  range=uint(-1);
+  for (int i=0;i < 4;i++)
+    code=(code << 8) | GetChar();
+}
+
+
+// (int) cast before "low" added only to suppress compiler warnings.
+#define ARI_DEC_NORMALIZE(code,low,range,read)                           \
+{                                                                        \
+  while ((low^(low+range))<TOP || range<BOT && ((range=-(int)low&(BOT-1)),1)) \
+  {                                                                      \
+    code=(code << 8) | read->GetChar();                                  \
+    range <<= 8;                                                         \
+    low <<= 8;                                                           \
+  }                                                                      \
+}
+
+
+inline int RangeCoder::GetCurrentCount() 
+{
+  return (code-low)/(range /= SubRange.scale);
+}
+
+
+inline uint RangeCoder::GetCurrentShiftCount(uint SHIFT) 
+{
+  return (code-low)/(range >>= SHIFT);
+}
+
+
+inline void RangeCoder::Decode()
+{
+  low += range*SubRange.LowCount;
+  range *= SubRange.HighCount-SubRange.LowCount;
+}

reference/unrar/coder.hpp

@@ -0,0 +1,23 @@
+/****************************************************************************
+ *  Contents: 'Carryless rangecoder' by Dmitry Subbotin                     *
+ ****************************************************************************/
+
+
+class RangeCoder
+{
+  public:
+    void InitDecoder(Unpack *UnpackRead);
+    inline int GetCurrentCount();
+    inline uint GetCurrentShiftCount(uint SHIFT);
+    inline void Decode();
+    inline void PutChar(unsigned int c);
+    inline unsigned int GetChar();
+
+    uint low, code, range;
+    struct SUBRANGE 
+    {
+      uint LowCount, HighCount, scale;
+    } SubRange;
+
+    Unpack *UnpackRead;
+};

reference/unrar/compress.hpp

@@ -0,0 +1,50 @@
+#ifndef _RAR_COMPRESS_
+#define _RAR_COMPRESS_
+
+// Combine pack and unpack constants to class to avoid polluting global
+// namespace with numerous short names.
+class PackDef
+{
+  public:
+    static const uint MAX_LZ_MATCH = 0x1001;
+    static const uint MAX3_LZ_MATCH = 0x101; // Maximum match length for RAR v3.
+    static const uint LOW_DIST_REP_COUNT = 16;
+
+    static const uint NC    = 306; /* alphabet = {0, 1, 2, ..., NC - 1} */
+    static const uint DC    = 64;
+    static const uint LDC   = 16;
+    static const uint RC    = 44;
+    static const uint HUFF_TABLE_SIZE = NC + DC + RC + LDC;
+    static const uint BC    = 20;
+
+    static const uint NC30  = 299; /* alphabet = {0, 1, 2, ..., NC - 1} */
+    static const uint DC30  = 60;
+    static const uint LDC30 = 17;
+    static const uint RC30  = 28;
+    static const uint BC30  = 20;
+    static const uint HUFF_TABLE_SIZE30 = NC30 + DC30 + RC30 + LDC30;
+
+    static const uint NC20  = 298; /* alphabet = {0, 1, 2, ..., NC - 1} */
+    static const uint DC20  = 48;
+    static const uint RC20  = 28;
+    static const uint BC20  = 19;
+    static const uint MC20  = 257;
+
+    // Largest alphabet size among all values listed above.
+    static const uint LARGEST_TABLE_SIZE = 306;
+
+    enum {
+      CODE_HUFFMAN, CODE_LZ, CODE_REPEATLZ, CODE_CACHELZ, CODE_STARTFILE,
+      CODE_ENDFILE, CODE_FILTER, CODE_FILTERDATA
+    };
+};
+
+
+enum FilterType {
+  // These values must not be changed, because we use them directly
+  // in RAR5 compression and decompression code.
+  FILTER_DELTA=0, FILTER_E8, FILTER_E8E9, FILTER_ARM, 
+  FILTER_AUDIO, FILTER_RGB, FILTER_ITANIUM, FILTER_PPM, FILTER_NONE
+};
+
+#endif

reference/unrar/consio.cpp

@@ -0,0 +1,352 @@
+#include "rar.hpp"
+#include "log.cpp"
+
+static MESSAGE_TYPE MsgStream=MSG_STDOUT;
+static RAR_CHARSET RedirectCharset=RCH_DEFAULT;
+
+const int MaxMsgSize=2*NM+2048;
+
+static bool StdoutRedirected=false,StderrRedirected=false,StdinRedirected=false;
+
+#ifdef _WIN_ALL
+static bool IsRedirected(DWORD nStdHandle)
+{
+  HANDLE hStd=GetStdHandle(nStdHandle);
+  DWORD Mode;
+  return GetFileType(hStd)!=FILE_TYPE_CHAR || GetConsoleMode(hStd,&Mode)==0;
+}
+#endif
+
+
+void InitConsole()
+{
+#ifdef _WIN_ALL
+  // We want messages like file names or progress percent to be printed
+  // immediately. Use only in Windows, in Unix they can cause wprintf %ls
+  // to fail with non-English strings.
+  setbuf(stdout,NULL);
+  setbuf(stderr,NULL);
+
+  // Detect if output is redirected and set output mode properly.
+  // We do not want to send Unicode output to files and especially to pipes
+  // like '|more', which cannot handle them correctly in Windows.
+  // In Unix console output is UTF-8 and it is handled correctly
+  // when redirecting, so no need to perform any adjustments.
+  StdoutRedirected=IsRedirected(STD_OUTPUT_HANDLE);
+  StderrRedirected=IsRedirected(STD_ERROR_HANDLE);
+  StdinRedirected=IsRedirected(STD_INPUT_HANDLE);
+#ifdef _MSC_VER
+  if (!StdoutRedirected)
+    _setmode(_fileno(stdout), _O_U16TEXT);
+  if (!StderrRedirected)
+    _setmode(_fileno(stderr), _O_U16TEXT);
+#endif
+#elif defined(_UNIX)
+  StdoutRedirected=!isatty(fileno(stdout));
+  StderrRedirected=!isatty(fileno(stderr));
+  StdinRedirected=!isatty(fileno(stdin));
+#endif
+}
+
+
+void InitConsoleOptions(MESSAGE_TYPE MsgStream,RAR_CHARSET RedirectCharset)
+{
+  ::MsgStream=MsgStream;
+  ::RedirectCharset=RedirectCharset;
+}
+
+
+#ifndef SILENT
+static void cvt_wprintf(FILE *dest,const wchar *fmt,va_list arglist)
+{
+  // This buffer is for format string only, not for entire output,
+  // so it can be short enough.
+  wchar fmtw[1024];
+  PrintfPrepareFmt(fmt,fmtw,ASIZE(fmtw));
+#ifdef _WIN_ALL
+  safebuf wchar Msg[MaxMsgSize];
+  if (dest==stdout && StdoutRedirected || dest==stderr && StderrRedirected)
+  {
+    HANDLE hOut=GetStdHandle(dest==stdout ? STD_OUTPUT_HANDLE:STD_ERROR_HANDLE);
+    vswprintf(Msg,ASIZE(Msg),fmtw,arglist);
+    DWORD Written;
+    if (RedirectCharset==RCH_UNICODE)
+      WriteFile(hOut,Msg,(DWORD)wcslen(Msg)*sizeof(*Msg),&Written,NULL);
+    else
+    {
+      // Avoid Unicode for redirect in Windows, it does not work with pipes.
+      safebuf char MsgA[MaxMsgSize];
+      if (RedirectCharset==RCH_UTF8)
+        WideToUtf(Msg,MsgA,ASIZE(MsgA));
+      else
+        WideToChar(Msg,MsgA,ASIZE(MsgA));
+      if (RedirectCharset==RCH_DEFAULT || RedirectCharset==RCH_OEM)
+        CharToOemA(MsgA,MsgA); // Console tools like 'more' expect OEM encoding.
+
+      // We already converted \n to \r\n above, so we use WriteFile instead
+      // of C library to avoid unnecessary additional conversion.
+      WriteFile(hOut,MsgA,(DWORD)strlen(MsgA),&Written,NULL);
+    }
+    return;
+  }
+  // MSVC2008 vfwprintf writes every character to console separately
+  // and it is too slow. We use direct WriteConsole call instead.
+  vswprintf(Msg,ASIZE(Msg),fmtw,arglist);
+  HANDLE hOut=GetStdHandle(dest==stderr ? STD_ERROR_HANDLE:STD_OUTPUT_HANDLE);
+  DWORD Written;
+  WriteConsole(hOut,Msg,(DWORD)wcslen(Msg),&Written,NULL);
+#else
+  vfwprintf(dest,fmtw,arglist);
+  // We do not use setbuf(NULL) in Unix (see comments in InitConsole).
+  fflush(dest);
+#endif
+}
+
+
+void mprintf(const wchar *fmt,...)
+{
+  if (MsgStream==MSG_NULL || MsgStream==MSG_ERRONLY)
+    return;
+
+  fflush(stderr); // Ensure proper message order.
+
+  va_list arglist;
+  va_start(arglist,fmt);
+  FILE *dest=MsgStream==MSG_STDERR ? stderr:stdout;
+  cvt_wprintf(dest,fmt,arglist);
+  va_end(arglist);
+}
+#endif
+
+
+#ifndef SILENT
+void eprintf(const wchar *fmt,...)
+{
+  if (MsgStream==MSG_NULL)
+    return;
+
+  fflush(stdout); // Ensure proper message order.
+
+  va_list arglist;
+  va_start(arglist,fmt);
+  cvt_wprintf(stderr,fmt,arglist);
+  va_end(arglist);
+}
+#endif
+
+
+#ifndef SILENT
+static void GetPasswordText(wchar *Str,uint MaxLength)
+{
+  if (MaxLength==0)
+    return;
+  if (StdinRedirected)
+    getwstr(Str,MaxLength); // Read from pipe or redirected file.
+  else
+  {
+#ifdef _WIN_ALL
+    HANDLE hConIn=GetStdHandle(STD_INPUT_HANDLE);
+    HANDLE hConOut=GetStdHandle(STD_OUTPUT_HANDLE);
+    DWORD ConInMode,ConOutMode;
+    DWORD Read=0;
+    GetConsoleMode(hConIn,&ConInMode);
+    GetConsoleMode(hConOut,&ConOutMode);
+    SetConsoleMode(hConIn,ENABLE_LINE_INPUT);
+    SetConsoleMode(hConOut,ENABLE_PROCESSED_OUTPUT|ENABLE_WRAP_AT_EOL_OUTPUT);
+
+    ReadConsole(hConIn,Str,MaxLength-1,&Read,NULL);
+    Str[Read]=0;
+    SetConsoleMode(hConIn,ConInMode);
+    SetConsoleMode(hConOut,ConOutMode);
+#else
+    char StrA[MAXPASSWORD];
+#if defined(_EMX) || defined (__VMS)
+    fgets(StrA,ASIZE(StrA)-1,stdin);
+#elif defined(__sun)
+    strncpyz(StrA,getpassphrase(""),ASIZE(StrA));
+#else
+    strncpyz(StrA,getpass(""),ASIZE(StrA));
+#endif
+    CharToWide(StrA,Str,MaxLength);
+    cleandata(StrA,sizeof(StrA));
+#endif
+  }
+  Str[MaxLength-1]=0;
+  RemoveLF(Str);
+}
+#endif
+
+
+#ifndef SILENT
+bool GetConsolePassword(UIPASSWORD_TYPE Type,const wchar *FileName,SecPassword *Password)
+{
+  if (!StdinRedirected)
+    uiAlarm(UIALARM_QUESTION);
+  
+  while (true)
+  {
+    if (!StdinRedirected)
+      if (Type==UIPASSWORD_GLOBAL)
+        eprintf(L"\n%s: ",St(MAskPsw));
+      else
+        eprintf(St(MAskPswFor),FileName);
+
+    wchar PlainPsw[MAXPASSWORD];
+    GetPasswordText(PlainPsw,ASIZE(PlainPsw));
+    if (*PlainPsw==0 && Type==UIPASSWORD_GLOBAL)
+      return false;
+    if (!StdinRedirected && Type==UIPASSWORD_GLOBAL)
+    {
+      eprintf(St(MReAskPsw));
+      wchar CmpStr[MAXPASSWORD];
+      GetPasswordText(CmpStr,ASIZE(CmpStr));
+      if (*CmpStr==0 || wcscmp(PlainPsw,CmpStr)!=0)
+      {
+        eprintf(St(MNotMatchPsw));
+        cleandata(PlainPsw,sizeof(PlainPsw));
+        cleandata(CmpStr,sizeof(CmpStr));
+        continue;
+      }
+      cleandata(CmpStr,sizeof(CmpStr));
+    }
+    Password->Set(PlainPsw);
+    cleandata(PlainPsw,sizeof(PlainPsw));
+    break;
+  }
+  return true;
+}
+#endif
+
+
+#ifndef SILENT
+bool getwstr(wchar *str,size_t n)
+{
+  // Print buffered prompt title function before waiting for input.
+  fflush(stderr);
+
+  *str=0;
+#if defined(_WIN_ALL)
+  // fgetws does not work well with non-English text in Windows,
+  // so we do not use it.
+  if (StdinRedirected) // ReadConsole does not work if redirected.
+  {
+    // fgets does not work well with pipes in Windows in our test.
+    // Let's use files.
+    Array<char> StrA(n*4); // Up to 4 UTF-8 characters per wchar_t.
+    File SrcFile;
+    SrcFile.SetHandleType(FILE_HANDLESTD);
+    int ReadSize=SrcFile.Read(&StrA[0],StrA.Size()-1);
+    if (ReadSize<=0)
+    {
+      // Looks like stdin is a null device. We can enter to infinite loop
+      // calling Ask(), so let's better exit.
+      ErrHandler.Exit(RARX_USERBREAK);
+    }
+    StrA[ReadSize]=0;
+    CharToWide(&StrA[0],str,n);
+    cleandata(&StrA[0],StrA.Size()); // We can use this function to enter passwords.
+  }
+  else
+  {
+    DWORD ReadSize=0;
+    if (ReadConsole(GetStdHandle(STD_INPUT_HANDLE),str,DWORD(n-1),&ReadSize,NULL)==0)
+      return false;
+    str[ReadSize]=0;
+  }
+#else
+  if (fgetws(str,n,stdin)==NULL)
+    ErrHandler.Exit(RARX_USERBREAK); // Avoid infinite Ask() loop.
+#endif
+  RemoveLF(str);
+  return true;
+}
+#endif
+
+
+#ifndef SILENT
+// We allow this function to return 0 in case of invalid input,
+// because it might be convenient to press Enter to some not dangerous
+// prompts like "insert disk with next volume". We should call this function
+// again in case of 0 in dangerous prompt such as overwriting file.
+int Ask(const wchar *AskStr)
+{
+  uiAlarm(UIALARM_QUESTION);
+
+  const int MaxItems=10;
+  wchar Item[MaxItems][40];
+  int ItemKeyPos[MaxItems],NumItems=0;
+
+  for (const wchar *NextItem=AskStr;NextItem!=NULL;NextItem=wcschr(NextItem+1,'_'))
+  {
+    wchar *CurItem=Item[NumItems];
+    wcsncpyz(CurItem,NextItem+1,ASIZE(Item[0]));
+    wchar *EndItem=wcschr(CurItem,'_');
+    if (EndItem!=NULL)
+      *EndItem=0;
+    int KeyPos=0,CurKey;
+    while ((CurKey=CurItem[KeyPos])!=0)
+    {
+      bool Found=false;
+      for (int I=0;I<NumItems && !Found;I++)
+        if (toupperw(Item[I][ItemKeyPos[I]])==toupperw(CurKey))
+          Found=true;
+      if (!Found && CurKey!=' ')
+        break;
+      KeyPos++;
+    }
+    ItemKeyPos[NumItems]=KeyPos;
+    NumItems++;
+  }
+
+  for (int I=0;I<NumItems;I++)
+  {
+    eprintf(I==0 ? (NumItems>4 ? L"\n":L" "):L", ");
+    int KeyPos=ItemKeyPos[I];
+    for (int J=0;J<KeyPos;J++)
+      eprintf(L"%c",Item[I][J]);
+    eprintf(L"[%c]%ls",Item[I][KeyPos],&Item[I][KeyPos+1]);
+  }
+  eprintf(L" ");
+  wchar Str[50];
+  getwstr(Str,ASIZE(Str));
+  wchar Ch=toupperw(Str[0]);
+  for (int I=0;I<NumItems;I++)
+    if (Ch==Item[I][ItemKeyPos[I]])
+      return I+1;
+  return 0;
+}
+#endif
+
+
+static bool IsCommentUnsafe(const wchar *Data,size_t Size)
+{
+  for (size_t I=0;I<Size;I++)
+    if (Data[I]==27 && Data[I+1]=='[')
+      for (size_t J=I+2;J<Size;J++)
+      {
+        // Return true for <ESC>[{key};"{string}"p used to redefine
+        // a keyboard key on some terminals.
+        if (Data[J]=='\"')
+          return true;
+        if (!IsDigit(Data[J]) && Data[J]!=';')
+          break;
+      }
+  return false;
+}
+
+
+void OutComment(const wchar *Comment,size_t Size)
+{
+  if (IsCommentUnsafe(Comment,Size))
+    return;
+  const size_t MaxOutSize=0x400;
+  for (size_t I=0;I<Size;I+=MaxOutSize)
+  {
+    wchar Msg[MaxOutSize+1];
+    size_t CopySize=Min(MaxOutSize,Size-I);
+    wcsncpy(Msg,Comment+I,CopySize);
+    Msg[CopySize]=0;
+    mprintf(L"%s",Msg);
+  }
+  mprintf(L"\n");
+}

reference/unrar/consio.hpp

@@ -0,0 +1,26 @@
+#ifndef _RAR_CONSIO_
+#define _RAR_CONSIO_
+
+void InitConsole();
+void InitConsoleOptions(MESSAGE_TYPE MsgStream,RAR_CHARSET RedirectCharset);
+void OutComment(const wchar *Comment,size_t Size);
+
+#ifndef SILENT
+bool GetConsolePassword(UIPASSWORD_TYPE Type,const wchar *FileName,SecPassword *Password);
+#endif
+
+#ifdef SILENT
+  inline void mprintf(const wchar *fmt,...) {}
+  inline void eprintf(const wchar *fmt,...) {}
+  inline void Alarm() {}
+  inline int Ask(const wchar *AskStr) {return 0;}
+  inline bool getwstr(wchar *str,size_t n) {return false;}
+#else
+  void mprintf(const wchar *fmt,...);
+  void eprintf(const wchar *fmt,...);
+  void Alarm();
+  int Ask(const wchar *AskStr);
+  bool getwstr(wchar *str,size_t n);
+#endif
+
+#endif

reference/unrar/crc.cpp

@@ -0,0 +1,102 @@
+// This CRC function is based on Intel Slicing-by-8 algorithm.
+//
+// Original Intel Slicing-by-8 code is available here:
+//
+//    http://sourceforge.net/projects/slicing-by-8/
+//
+// Original Intel Slicing-by-8 code is licensed as:
+//    
+//    Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved
+//    
+//    This software program is licensed subject to the BSD License, 
+//    available at http://www.opensource.org/licenses/bsd-license.html
+
+
+#include "rar.hpp"
+
+static uint crc_tables[8][256]; // Tables for Slicing-by-8.
+
+
+// Build the classic CRC32 lookup table.
+// We also provide this function to legacy RAR and ZIP decryption code.
+void InitCRC32(uint *CRCTab)
+{
+  if (CRCTab[1]!=0)
+    return;
+  for (uint I=0;I<256;I++)
+  {
+    uint C=I;
+    for (uint J=0;J<8;J++)
+      C=(C & 1) ? (C>>1)^0xEDB88320 : (C>>1);
+    CRCTab[I]=C;
+  }
+}
+
+
+static void InitTables()
+{
+  InitCRC32(crc_tables[0]);
+
+  for (uint I=0;I<256;I++) // Build additional lookup tables.
+  {
+    uint C=crc_tables[0][I];
+    for (uint J=1;J<8;J++)
+    {
+      C=crc_tables[0][(byte)C]^(C>>8);
+      crc_tables[J][I]=C;
+    }
+  }
+}
+
+
+struct CallInitCRC {CallInitCRC() {InitTables();}} static CallInit32;
+
+uint CRC32(uint StartCRC,const void *Addr,size_t Size)
+{
+  byte *Data=(byte *)Addr;
+
+  // Align Data to 8 for better performance.
+  for (;Size>0 && ((size_t)Data & 7);Size--,Data++)
+    StartCRC=crc_tables[0][(byte)(StartCRC^Data[0])]^(StartCRC>>8);
+
+  for (;Size>=8;Size-=8,Data+=8)
+  {
+#ifdef BIG_ENDIAN
+    StartCRC ^= Data[0]|(Data[1] << 8)|(Data[2] << 16)|(Data[3] << 24);
+    uint NextData = Data[4]|(Data[5] << 8)|(Data[6] << 16)|(Data[7] << 24);
+#else
+    StartCRC ^= *(uint32 *) Data;
+    uint NextData = *(uint32 *) (Data +4);
+#endif
+    StartCRC = crc_tables[7][(byte) StartCRC       ] ^
+               crc_tables[6][(byte)(StartCRC >> 8) ] ^
+               crc_tables[5][(byte)(StartCRC >> 16)] ^
+               crc_tables[4][(byte)(StartCRC >> 24)] ^
+               crc_tables[3][(byte) NextData       ] ^
+               crc_tables[2][(byte)(NextData >>8 ) ] ^
+               crc_tables[1][(byte)(NextData >> 16)] ^
+               crc_tables[0][(byte)(NextData >> 24)];
+  }
+
+  for (;Size>0;Size--,Data++) // Process left data.
+    StartCRC=crc_tables[0][(byte)(StartCRC^Data[0])]^(StartCRC>>8);
+
+  return StartCRC;
+}
+
+
+#ifndef SFX_MODULE
+// For RAR 1.4 archives in case somebody still has them.
+ushort Checksum14(ushort StartCRC,const void *Addr,size_t Size)
+{
+  byte *Data=(byte *)Addr;
+  for (size_t I=0;I<Size;I++)
+  {
+    StartCRC=(StartCRC+Data[I])&0xffff;
+    StartCRC=((StartCRC<<1)|(StartCRC>>15))&0xffff;
+  }
+  return StartCRC;
+}
+#endif
+
+

reference/unrar/crc.hpp

@@ -0,0 +1,15 @@
+#ifndef _RAR_CRC_
+#define _RAR_CRC_
+
+// This function is only to intialize external CRC tables. We do not need to
+// call it before calculating CRC32.
+void InitCRC32(uint *CRCTab);
+
+uint CRC32(uint StartCRC,const void *Addr,size_t Size);
+
+#ifndef SFX_MODULE
+ushort Checksum14(ushort StartCRC,const void *Addr,size_t Size);
+#endif
+
+
+#endif

reference/unrar/crypt.cpp

@@ -0,0 +1,134 @@
+#include "rar.hpp"
+
+#ifndef SFX_MODULE
+#include "crypt1.cpp"
+#include "crypt2.cpp"
+#endif
+#include "crypt3.cpp"
+#include "crypt5.cpp"
+
+
+CryptData::CryptData()
+{
+  Method=CRYPT_NONE;
+  memset(KDF3Cache,0,sizeof(KDF3Cache));
+  memset(KDF5Cache,0,sizeof(KDF5Cache));
+  KDF3CachePos=0;
+  KDF5CachePos=0;
+  memset(CRCTab,0,sizeof(CRCTab));
+}
+
+
+CryptData::~CryptData()
+{
+  cleandata(KDF3Cache,sizeof(KDF3Cache));
+  cleandata(KDF5Cache,sizeof(KDF5Cache));
+}
+
+
+
+
+void CryptData::DecryptBlock(byte *Buf,size_t Size)
+{
+  switch(Method)
+  {
+#ifndef SFX_MODULE
+    case CRYPT_RAR13:
+      Decrypt13(Buf,Size);
+      break;
+    case CRYPT_RAR15:
+      Crypt15(Buf,Size);
+      break;
+    case CRYPT_RAR20:
+      for (size_t I=0;I<Size;I+=CRYPT_BLOCK_SIZE)
+        DecryptBlock20(Buf+I);
+      break;
+#endif
+    case CRYPT_RAR30:
+    case CRYPT_RAR50:
+      rin.blockDecrypt(Buf,Size,Buf);
+      break;
+  }
+}
+
+
+bool CryptData::SetCryptKeys(bool Encrypt,CRYPT_METHOD Method,
+     SecPassword *Password,const byte *Salt,
+     const byte *InitV,uint Lg2Cnt,byte *HashKey,byte *PswCheck)
+{
+  if (!Password->IsSet() || Method==CRYPT_NONE)
+    return false;
+
+  CryptData::Method=Method;
+
+  wchar PwdW[MAXPASSWORD];
+  Password->Get(PwdW,ASIZE(PwdW));
+  char PwdA[MAXPASSWORD];
+  WideToChar(PwdW,PwdA,ASIZE(PwdA));
+
+  switch(Method)
+  {
+#ifndef SFX_MODULE
+    case CRYPT_RAR13:
+      SetKey13(PwdA);
+      break;
+    case CRYPT_RAR15:
+      SetKey15(PwdA);
+      break;
+    case CRYPT_RAR20:
+      SetKey20(PwdA);
+      break;
+#endif
+    case CRYPT_RAR30:
+      SetKey30(Encrypt,Password,PwdW,Salt);
+      break;
+    case CRYPT_RAR50:
+      SetKey50(Encrypt,Password,PwdW,Salt,InitV,Lg2Cnt,HashKey,PswCheck);
+      break;
+  }
+  cleandata(PwdA,sizeof(PwdA));
+  cleandata(PwdW,sizeof(PwdW));
+  return true;
+}
+
+
+// Use the current system time to additionally randomize data.
+static void TimeRandomize(byte *RndBuf,size_t BufSize)
+{
+  static uint Count=0;
+  RarTime CurTime;
+  CurTime.SetCurrentTime();
+  uint64 Random=CurTime.GetWin()+clock();
+  for (size_t I=0;I<BufSize;I++)
+  {
+    byte RndByte = byte (Random >> ( (I & 7) * 8 ));
+    RndBuf[I]=byte( (RndByte ^ I) + Count++);
+  }
+}
+
+
+
+
+// Fill buffer with random data.
+void GetRnd(byte *RndBuf,size_t BufSize)
+{
+  bool Success=false;
+#if defined(_WIN_ALL)
+  HCRYPTPROV hProvider = 0;
+  if (CryptAcquireContext(&hProvider, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
+  {
+    Success=CryptGenRandom(hProvider, (DWORD)BufSize, RndBuf) == TRUE;
+    CryptReleaseContext(hProvider, 0);
+  }
+#elif defined(_UNIX)
+  FILE *rndf = fopen("/dev/urandom", "r");
+  if (rndf!=NULL)
+  {
+    Success=fread(RndBuf, BufSize, 1, rndf) == BufSize;
+    fclose(rndf);
+  }
+#endif
+  // We use this code only as the last resort if code above failed.
+  if (!Success)
+    TimeRandomize(RndBuf,BufSize);
+}

reference/unrar/crypt.hpp

@@ -0,0 +1,101 @@
+#ifndef _RAR_CRYPT_
+#define _RAR_CRYPT_
+
+
+enum CRYPT_METHOD {
+  CRYPT_NONE,CRYPT_RAR13,CRYPT_RAR15,CRYPT_RAR20,CRYPT_RAR30,CRYPT_RAR50
+};
+
+#define SIZE_SALT50              16
+#define SIZE_SALT30               8
+#define SIZE_INITV               16
+#define SIZE_PSWCHECK             8
+#define SIZE_PSWCHECK_CSUM        4
+
+#define CRYPT_BLOCK_SIZE         16
+#define CRYPT_BLOCK_MASK         (CRYPT_BLOCK_SIZE-1) // 0xf
+
+#define CRYPT5_KDF_LG2_COUNT     15 // LOG2 of PDKDF2 iteration count.
+#define CRYPT5_KDF_LG2_COUNT_MAX 24 // LOG2 of maximum accepted iteration count.
+#define CRYPT_VERSION             0 // Supported encryption version.
+
+
+class CryptData
+{
+  struct KDF5CacheItem
+  {
+    SecPassword Pwd;
+    byte Salt[SIZE_SALT50];
+    byte Key[32];
+    uint Lg2Count; // Log2 of PBKDF2 repetition count.
+    byte PswCheckValue[SHA256_DIGEST_SIZE];
+    byte HashKeyValue[SHA256_DIGEST_SIZE];
+  };
+
+  struct KDF3CacheItem
+  {
+    SecPassword Pwd;
+    byte Salt[SIZE_SALT30];
+    byte Key[16];
+    byte Init[16];
+    bool SaltPresent;
+  };
+
+
+  private:
+    void SetKey13(const char *Password);
+    void Decrypt13(byte *Data,size_t Count);
+
+    void SetKey15(const char *Password);
+    void Crypt15(byte *Data,size_t Count);
+
+    void SetKey20(const char *Password);
+    void Swap20(byte *Ch1,byte *Ch2);
+    void UpdKeys20(byte *Buf);
+    void EncryptBlock20(byte *Buf);
+    void DecryptBlock20(byte *Buf);
+
+    void SetKey30(bool Encrypt,SecPassword *Password,const wchar *PwdW,const byte *Salt);
+    void SetKey50(bool Encrypt,SecPassword *Password,const wchar *PwdW,const byte *Salt,const byte *InitV,uint Lg2Cnt,byte *HashKey,byte *PswCheck);
+
+    KDF3CacheItem KDF3Cache[4];
+    uint KDF3CachePos;
+    
+    KDF5CacheItem KDF5Cache[4];
+    uint KDF5CachePos;
+
+    CRYPT_METHOD Method;
+
+    Rijndael rin;
+
+    uint CRCTab[256]; // For RAR 1.5 and RAR 2.0 encryption.
+    
+    byte SubstTable20[256];
+    uint Key20[4];
+
+    byte Key13[3];
+    ushort Key15[4];
+  public:
+    CryptData();
+    ~CryptData();
+    bool SetCryptKeys(bool Encrypt,CRYPT_METHOD Method,SecPassword *Password,
+         const byte *Salt,const byte *InitV,uint Lg2Cnt,
+         byte *HashKey,byte *PswCheck);
+    void SetAV15Encryption();
+    void SetCmt13Encryption();
+    void EncryptBlock(byte *Buf,size_t Size);
+    void DecryptBlock(byte *Buf,size_t Size);
+    static void SetSalt(byte *Salt,size_t SaltSize);
+};
+
+void GetRnd(byte *RndBuf,size_t BufSize);
+
+void hmac_sha256(const byte *Key,size_t KeyLength,const byte *Data,
+                 size_t DataLength,byte *ResDigest);
+void pbkdf2(const byte *pass, size_t pass_len, const byte *salt,
+            size_t salt_len,byte *key, byte *Value1, byte *Value2,
+            uint rounds);
+
+void ConvertHashToMAC(HashValue *Value,byte *Key);
+
+#endif

reference/unrar/crypt1.cpp

@@ -0,0 +1,79 @@
+extern uint CRCTab[256];
+
+void CryptData::SetKey13(const char *Password)
+{
+  Key13[0]=Key13[1]=Key13[2]=0;
+  for (size_t I=0;Password[I]!=0;I++)
+  {
+    byte P=Password[I];
+    Key13[0]+=P;
+    Key13[1]^=P;
+    Key13[2]+=P;
+    Key13[2]=(byte)rotls(Key13[2],1,8);
+  }
+}
+
+
+void CryptData::SetKey15(const char *Password)
+{
+  InitCRC32(CRCTab);
+  uint PswCRC=CRC32(0xffffffff,Password,strlen(Password));
+  Key15[0]=PswCRC&0xffff;
+  Key15[1]=(PswCRC>>16)&0xffff;
+  Key15[2]=Key15[3]=0;
+  for (size_t I=0;Password[I]!=0;I++)
+  {
+    byte P=Password[I];
+    Key15[2]^=P^CRCTab[P];
+    Key15[3]+=P+(CRCTab[P]>>16);
+  }
+}
+
+
+void CryptData::SetAV15Encryption()
+{
+  InitCRC32(CRCTab);
+  Method=CRYPT_RAR15;
+  Key15[0]=0x4765;
+  Key15[1]=0x9021;
+  Key15[2]=0x7382;
+  Key15[3]=0x5215;
+}
+
+
+void CryptData::SetCmt13Encryption()
+{
+  Method=CRYPT_RAR13;
+  Key13[0]=0;
+  Key13[1]=7;
+  Key13[2]=77;
+}
+
+
+void CryptData::Decrypt13(byte *Data,size_t Count)
+{
+  while (Count--)
+  {
+    Key13[1]+=Key13[2];
+    Key13[0]+=Key13[1];
+    *Data-=Key13[0];
+    Data++;
+  }
+}
+
+
+void CryptData::Crypt15(byte *Data,size_t Count)
+{
+  while (Count--)
+  {
+    Key15[0]+=0x1234;
+    Key15[1]^=CRCTab[(Key15[0] & 0x1fe)>>1];
+    Key15[2]-=CRCTab[(Key15[0] & 0x1fe)>>1]>>16;
+    Key15[0]^=Key15[2];
+    Key15[3]=rotrs(Key15[3]&0xffff,1,16)^Key15[1];
+    Key15[3]=rotrs(Key15[3]&0xffff,1,16);
+    Key15[0]^=Key15[3];
+    *Data^=(byte)(Key15[0]>>8);
+    Data++;
+  }
+}

reference/unrar/crypt2.cpp

@@ -0,0 +1,133 @@
+#define NROUNDS 32
+
+#define substLong(t) ( (uint)SubstTable20[(uint)t&255] | \
+           ((uint)SubstTable20[(int)(t>> 8)&255]<< 8) | \
+           ((uint)SubstTable20[(int)(t>>16)&255]<<16) | \
+           ((uint)SubstTable20[(int)(t>>24)&255]<<24) )
+
+
+static byte InitSubstTable20[256]={
+  215, 19,149, 35, 73,197,192,205,249, 28, 16,119, 48,221,  2, 42,
+  232,  1,177,233, 14, 88,219, 25,223,195,244, 90, 87,239,153,137,
+  255,199,147, 70, 92, 66,246, 13,216, 40, 62, 29,217,230, 86,  6,
+   71, 24,171,196,101,113,218,123, 93, 91,163,178,202, 67, 44,235,
+  107,250, 75,234, 49,167,125,211, 83,114,157,144, 32,193,143, 36,
+  158,124,247,187, 89,214,141, 47,121,228, 61,130,213,194,174,251,
+   97,110, 54,229,115, 57,152, 94,105,243,212, 55,209,245, 63, 11,
+  164,200, 31,156, 81,176,227, 21, 76, 99,139,188,127, 17,248, 51,
+  207,120,189,210,  8,226, 41, 72,183,203,135,165,166, 60, 98,  7,
+  122, 38,155,170, 69,172,252,238, 39,134, 59,128,236, 27,240, 80,
+  131,  3, 85,206,145, 79,154,142,159,220,201,133, 74, 64, 20,129,
+  224,185,138,103,173,182, 43, 34,254, 82,198,151,231,180, 58, 10,
+  118, 26,102, 12, 50,132, 22,191,136,111,162,179, 45,  4,148,108,
+  161, 56, 78,126,242,222, 15,175,146, 23, 33,241,181,190, 77,225,
+    0, 46,169,186, 68, 95,237, 65, 53,208,253,168,  9, 18,100, 52,
+  116,184,160, 96,109, 37, 30,106,140,104,150,  5,204,117,112, 84
+};
+
+
+void CryptData::SetKey20(const char *Password)
+{
+  InitCRC32(CRCTab);
+
+  char Psw[MAXPASSWORD];
+  strncpyz(Psw,Password,ASIZE(Psw)); // We'll need to modify it below.
+  size_t PswLength=strlen(Psw);
+
+  Key20[0]=0xD3A3B879L;
+  Key20[1]=0x3F6D12F7L;
+  Key20[2]=0x7515A235L;
+  Key20[3]=0xA4E7F123L;
+
+  memcpy(SubstTable20,InitSubstTable20,sizeof(SubstTable20));
+  for (uint J=0;J<256;J++)
+    for (size_t I=0;I<PswLength;I+=2)
+    {
+      uint N1=(byte)CRCTab [ (byte(Password[I])   - J) &0xff];
+      uint N2=(byte)CRCTab [ (byte(Password[I+1]) + J) &0xff];
+      for (int K=1;N1!=N2;N1=(N1+1)&0xff,K++)
+        Swap20(&SubstTable20[N1],&SubstTable20[(N1+I+K)&0xff]);
+    }
+  
+  // Incomplete last block of password must be zero padded.
+  if ((PswLength & CRYPT_BLOCK_MASK)!=0)
+    for (size_t I=PswLength;I<=(PswLength|CRYPT_BLOCK_MASK);I++)
+       Psw[I]=0;
+
+  for (size_t I=0;I<PswLength;I+=CRYPT_BLOCK_SIZE)
+    EncryptBlock20((byte *)Psw+I);
+}
+
+
+void CryptData::EncryptBlock20(byte *Buf)
+{
+  uint A,B,C,D,T,TA,TB;
+  A=RawGet4(Buf+0)^Key20[0];
+  B=RawGet4(Buf+4)^Key20[1];
+  C=RawGet4(Buf+8)^Key20[2];
+  D=RawGet4(Buf+12)^Key20[3];
+  for(int I=0;I<NROUNDS;I++)
+  {
+    T=((C+rotls(D,11,32))^Key20[I&3]);
+    TA=A^substLong(T);
+    T=((D^rotls(C,17,32))+Key20[I&3]);
+    TB=B^substLong(T);
+    A=C;
+    B=D;
+    C=TA;
+    D=TB;
+  }
+  RawPut4(C^Key20[0],Buf+0);
+  RawPut4(D^Key20[1],Buf+4);
+  RawPut4(A^Key20[2],Buf+8);
+  RawPut4(B^Key20[3],Buf+12);
+  UpdKeys20(Buf);
+}
+
+
+void CryptData::DecryptBlock20(byte *Buf)
+{
+  byte InBuf[16];
+  uint A,B,C,D,T,TA,TB;
+  A=RawGet4(Buf+0)^Key20[0];
+  B=RawGet4(Buf+4)^Key20[1];
+  C=RawGet4(Buf+8)^Key20[2];
+  D=RawGet4(Buf+12)^Key20[3];
+  memcpy(InBuf,Buf,sizeof(InBuf));
+  for(int I=NROUNDS-1;I>=0;I--)
+  {
+    T=((C+rotls(D,11,32))^Key20[I&3]);
+    TA=A^substLong(T);
+    T=((D^rotls(C,17,32))+Key20[I&3]);
+    TB=B^substLong(T);
+    A=C;
+    B=D;
+    C=TA;
+    D=TB;
+  }
+  RawPut4(C^Key20[0],Buf+0);
+  RawPut4(D^Key20[1],Buf+4);
+  RawPut4(A^Key20[2],Buf+8);
+  RawPut4(B^Key20[3],Buf+12);
+  UpdKeys20(InBuf);
+}
+
+
+void CryptData::UpdKeys20(byte *Buf)
+{
+  for (int I=0;I<16;I+=4)
+  {
+    Key20[0]^=CRCTab[Buf[I]];
+    Key20[1]^=CRCTab[Buf[I+1]];
+    Key20[2]^=CRCTab[Buf[I+2]];
+    Key20[3]^=CRCTab[Buf[I+3]];
+  }
+}
+
+
+void CryptData::Swap20(byte *Ch1,byte *Ch2)
+{
+  byte Ch=*Ch1;
+  *Ch1=*Ch2;
+  *Ch2=Ch;
+}

reference/unrar/crypt3.cpp

@@ -0,0 +1,68 @@
+void CryptData::SetKey30(bool Encrypt,SecPassword *Password,const wchar *PwdW,const byte *Salt)
+{
+  byte AESKey[16],AESInit[16];
+
+  bool Cached=false;
+  for (uint I=0;I<ASIZE(KDF3Cache);I++)
+    if (KDF3Cache[I].Pwd==*Password &&
+        (Salt==NULL && !KDF3Cache[I].SaltPresent || Salt!=NULL &&
+        KDF3Cache[I].SaltPresent && memcmp(KDF3Cache[I].Salt,Salt,SIZE_SALT30)==0))
+    {
+      memcpy(AESKey,KDF3Cache[I].Key,sizeof(AESKey));
+      SecHideData(AESKey,sizeof(AESKey),false,false);
+      memcpy(AESInit,KDF3Cache[I].Init,sizeof(AESInit));
+      Cached=true;
+      break;
+    }
+
+  if (!Cached)
+  {
+    byte RawPsw[2*MAXPASSWORD+SIZE_SALT30];
+    WideToRaw(PwdW,RawPsw,ASIZE(RawPsw));
+    size_t RawLength=2*wcslen(PwdW);
+    if (Salt!=NULL)
+    {
+      memcpy(RawPsw+RawLength,Salt,SIZE_SALT30);
+      RawLength+=SIZE_SALT30;
+    }
+    sha1_context c;
+    sha1_init(&c);
+
+    const int HashRounds=0x40000;
+    for (int I=0;I<HashRounds;I++)
+    {
+      sha1_process_rar29( &c, RawPsw, RawLength );
+      byte PswNum[3];
+      PswNum[0]=(byte)I;
+      PswNum[1]=(byte)(I>>8);
+      PswNum[2]=(byte)(I>>16);
+      sha1_process(&c, PswNum, 3);
+      if (I%(HashRounds/16)==0)
+      {
+        sha1_context tempc=c;
+        uint32 digest[5];
+        sha1_done( &tempc, digest );
+        AESInit[I/(HashRounds/16)]=(byte)digest[4];
+      }
+    }
+    uint32 digest[5];
+    sha1_done( &c, digest );
+    for (int I=0;I<4;I++)
+      for (int J=0;J<4;J++)
+        AESKey[I*4+J]=(byte)(digest[I]>>(J*8));
+
+    KDF3Cache[KDF3CachePos].Pwd=*Password;
+    if ((KDF3Cache[KDF3CachePos].SaltPresent=(Salt!=NULL))==true)
+      memcpy(KDF3Cache[KDF3CachePos].Salt,Salt,SIZE_SALT30);
+    memcpy(KDF3Cache[KDF3CachePos].Key,AESKey,sizeof(AESKey));
+    SecHideData(KDF3Cache[KDF3CachePos].Key,sizeof(KDF3Cache[KDF3CachePos].Key),true,false);
+    memcpy(KDF3Cache[KDF3CachePos].Init,AESInit,sizeof(AESInit));
+    KDF3CachePos=(KDF3CachePos+1)%ASIZE(KDF3Cache);
+
+    cleandata(RawPsw,sizeof(RawPsw));
+  }
+  rin.Init(Encrypt, AESKey, 128, AESInit);
+  cleandata(AESKey,sizeof(AESKey));
+  cleandata(AESInit,sizeof(AESInit));
+}
+

reference/unrar/crypt5.cpp

@@ -0,0 +1,233 @@
+static void hmac_sha256(const byte *Key,size_t KeyLength,const byte *Data,
+                        size_t DataLength,byte *ResDigest,
+                        sha256_context *ICtxOpt,bool *SetIOpt,
+                        sha256_context *RCtxOpt,bool *SetROpt)
+{
+  const size_t Sha256BlockSize=64; // As defined in RFC 4868.
+
+  byte KeyHash[SHA256_DIGEST_SIZE];
+  if (KeyLength > Sha256BlockSize) // Convert longer keys to key hash.
+  {
+    sha256_context KCtx;
+    sha256_init(&KCtx);
+    sha256_process(&KCtx, Key, KeyLength);
+    sha256_done(&KCtx, KeyHash);
+
+    Key = KeyHash;
+    KeyLength = SHA256_DIGEST_SIZE;
+  }
+
+  byte KeyBuf[Sha256BlockSize]; // Store the padded key here.
+  sha256_context ICtx;
+
+  if (ICtxOpt!=NULL && *SetIOpt)
+    ICtx=*ICtxOpt; // Use already calculated first block context.
+  else
+  {
+    // This calculation is the same for all iterations with same password.
+    // So for PBKDF2 we can calculate it only for first block and then reuse
+    // to improve performance. 
+
+    for (size_t I = 0; I < KeyLength; I++) // Use 0x36 padding for inner digest.
+      KeyBuf[I] = Key[I] ^ 0x36;
+    for (size_t I = KeyLength; I < Sha256BlockSize; I++)
+      KeyBuf[I] = 0x36;
+
+    sha256_init(&ICtx);
+    sha256_process(&ICtx, KeyBuf, Sha256BlockSize); // Hash padded key.
+  }
+
+  if (ICtxOpt!=NULL && !*SetIOpt) // Store constant context for further reuse.
+  {
+    *ICtxOpt=ICtx;
+    *SetIOpt=true;
+  }
+
+  sha256_process(&ICtx, Data, DataLength); // Hash data.
+
+  byte IDig[SHA256_DIGEST_SIZE]; // Internal digest for padded key and data.
+  sha256_done(&ICtx, IDig);
+
+  sha256_context RCtx;
+
+  if (RCtxOpt!=NULL && *SetROpt)
+    RCtx=*RCtxOpt; // Use already calculated first block context.
+  else
+  {
+    // This calculation is the same for all iterations with same password.
+    // So for PBKDF2 we can calculate it only for first block and then reuse
+    // to improve performance. 
+
+    for (size_t I = 0; I < KeyLength; I++) // Use 0x5c for outer key padding.
+      KeyBuf[I] = Key[I] ^ 0x5c;
+    for (size_t I = KeyLength; I < Sha256BlockSize; I++)
+      KeyBuf[I] = 0x5c;
+
+    sha256_init(&RCtx);
+    sha256_process(&RCtx, KeyBuf, Sha256BlockSize); // Hash padded key.
+  }
+
+  if (RCtxOpt!=NULL && !*SetROpt) // Store constant context for further reuse.
+  {
+    *RCtxOpt=RCtx;
+    *SetROpt=true;
+  }
+
+  sha256_process(&RCtx, IDig, SHA256_DIGEST_SIZE); // Hash internal digest.
+
+  sha256_done(&RCtx, ResDigest);
+}
+
+
+// PBKDF2 for 32 byte key length. We generate the key for specified number
+// of iteration count also as two supplementary values (key for checksums
+// and password verification) for iterations+16 and iterations+32.
+void pbkdf2(const byte *Pwd, size_t PwdLength, 
+            const byte *Salt, size_t SaltLength,
+            byte *Key, byte *V1, byte *V2, uint Count)
+{
+  const size_t MaxSalt=64;
+  byte SaltData[MaxSalt+4];
+  memcpy(SaltData, Salt, Min(SaltLength,MaxSalt));
+
+  SaltData[SaltLength + 0] = 0; // Salt concatenated to 1.
+  SaltData[SaltLength + 1] = 0;
+  SaltData[SaltLength + 2] = 0;
+  SaltData[SaltLength + 3] = 1;
+
+  // First iteration: HMAC of password, salt and block index (1).
+  byte U1[SHA256_DIGEST_SIZE];
+  hmac_sha256(Pwd, PwdLength, SaltData, SaltLength + 4, U1, NULL, NULL, NULL, NULL);
+  byte Fn[SHA256_DIGEST_SIZE]; // Current function value.
+  memcpy(Fn, U1, sizeof(Fn)); // Function at first iteration.
+
+  uint  CurCount[] = { Count-1, 16, 16 };
+  byte *CurValue[] = { Key    , V1, V2 };
+  
+  sha256_context ICtxOpt,RCtxOpt;
+  bool SetIOpt=false,SetROpt=false;
+  
+  byte U2[SHA256_DIGEST_SIZE];
+  for (uint I = 0; I < 3; I++) // For output key and 2 supplementary values.
+  {
+    for (uint J = 0; J < CurCount[I]; J++) 
+    {
+      // U2 = PRF (P, U1).
+      hmac_sha256(Pwd, PwdLength, U1, sizeof(U1), U2, &ICtxOpt, &SetIOpt, &RCtxOpt, &SetROpt);
+      memcpy(U1, U2, sizeof(U1));
+      for (uint K = 0; K < sizeof(Fn); K++) // Function ^= U.
+        Fn[K] ^= U1[K];
+    }
+    memcpy(CurValue[I], Fn, SHA256_DIGEST_SIZE);
+  }
+
+  cleandata(SaltData, sizeof(SaltData));
+  cleandata(Fn, sizeof(Fn));
+  cleandata(U1, sizeof(U1));
+  cleandata(U2, sizeof(U2));
+}
+
+
+void CryptData::SetKey50(bool Encrypt,SecPassword *Password,const wchar *PwdW,
+     const byte *Salt,const byte *InitV,uint Lg2Cnt,byte *HashKey,
+     byte *PswCheck)
+{
+  if (Lg2Cnt>CRYPT5_KDF_LG2_COUNT_MAX)
+    return;
+
+  byte Key[32],PswCheckValue[SHA256_DIGEST_SIZE],HashKeyValue[SHA256_DIGEST_SIZE];
+  bool Found=false;
+  for (uint I=0;I<ASIZE(KDF5Cache);I++)
+  {
+    KDF5CacheItem *Item=KDF5Cache+I;
+    if (Item->Lg2Count==Lg2Cnt && Item->Pwd==*Password &&
+        memcmp(Item->Salt,Salt,SIZE_SALT50)==0)
+    {
+      memcpy(Key,Item->Key,sizeof(Key));
+      SecHideData(Key,sizeof(Key),false,false);
+
+      memcpy(PswCheckValue,Item->PswCheckValue,sizeof(PswCheckValue));
+      memcpy(HashKeyValue,Item->HashKeyValue,sizeof(HashKeyValue));
+      Found=true;
+      break;
+    }
+  }
+
+  if (!Found)
+  {
+    char PwdUtf[MAXPASSWORD*4];
+    WideToUtf(PwdW,PwdUtf,ASIZE(PwdUtf));
+    
+    pbkdf2((byte *)PwdUtf,strlen(PwdUtf),Salt,SIZE_SALT50,Key,HashKeyValue,PswCheckValue,(1<<Lg2Cnt));
+    cleandata(PwdUtf,sizeof(PwdUtf));
+
+    KDF5CacheItem *Item=KDF5Cache+(KDF5CachePos++ % ASIZE(KDF5Cache));
+    Item->Lg2Count=Lg2Cnt;
+    Item->Pwd=*Password;
+    memcpy(Item->Salt,Salt,SIZE_SALT50);
+    memcpy(Item->Key,Key,sizeof(Item->Key));
+    memcpy(Item->PswCheckValue,PswCheckValue,sizeof(PswCheckValue));
+    memcpy(Item->HashKeyValue,HashKeyValue,sizeof(HashKeyValue));
+    SecHideData(Item->Key,sizeof(Item->Key),true,false);
+  }
+  if (HashKey!=NULL)
+    memcpy(HashKey,HashKeyValue,SHA256_DIGEST_SIZE);
+  if (PswCheck!=NULL)
+  {
+    memset(PswCheck,0,SIZE_PSWCHECK);
+    for (uint I=0;I<SHA256_DIGEST_SIZE;I++)
+      PswCheck[I%SIZE_PSWCHECK]^=PswCheckValue[I];
+    cleandata(PswCheckValue,sizeof(PswCheckValue));
+  }
+
+  // NULL initialization vector is possible if we only need the password
+  // check value for archive encryption header.
+  if (InitV!=NULL)
+    rin.Init(Encrypt, Key, 256, InitV);
+
+  cleandata(Key,sizeof(Key));
+}
+
+
+void ConvertHashToMAC(HashValue *Value,byte *Key)
+{
+  if (Value->Type==HASH_CRC32)
+  {
+    byte RawCRC[4];
+    RawPut4(Value->CRC32,RawCRC);
+    byte Digest[SHA256_DIGEST_SIZE];
+    hmac_sha256(Key,SHA256_DIGEST_SIZE,RawCRC,sizeof(RawCRC),Digest,NULL,NULL,NULL,NULL);
+    Value->CRC32=0;
+    for (uint I=0;I<ASIZE(Digest);I++)
+      Value->CRC32^=Digest[I] << ((I & 3) * 8);
+  }
+  if (Value->Type==HASH_BLAKE2)
+  {
+    byte Digest[BLAKE2_DIGEST_SIZE];
+    hmac_sha256(Key,BLAKE2_DIGEST_SIZE,Value->Digest,sizeof(Value->Digest),Digest,NULL,NULL,NULL,NULL);
+    memcpy(Value->Digest,Digest,sizeof(Value->Digest));
+  }
+}
+
+
+#if 0
+static void TestPBKDF2();
+struct TestKDF {TestKDF() {TestPBKDF2();exit(0);}} GlobalTestKDF;
+
+void TestPBKDF2() // Test PBKDF2 HMAC-SHA256
+{
+  byte Key[32],V1[32],V2[32];
+
+  pbkdf2((byte *)"password", 8, (byte *)"salt", 4, Key, V1, V2, 1);
+  byte Res1[32]={0x12, 0x0f, 0xb6, 0xcf, 0xfc, 0xf8, 0xb3, 0x2c, 0x43, 0xe7, 0x22, 0x52, 0x56, 0xc4, 0xf8, 0x37, 0xa8, 0x65, 0x48, 0xc9, 0x2c, 0xcc, 0x35, 0x48, 0x08, 0x05, 0x98, 0x7c, 0xb7, 0x0b, 0xe1, 0x7b };
+  mprintf(L"\nPBKDF2 test1: %s", memcmp(Key,Res1,32)==0 ? L"OK":L"Failed");
+
+  pbkdf2((byte *)"password", 8, (byte *)"salt", 4, Key, V1, V2, 4096);
+  byte Res2[32]={0xc5, 0xe4, 0x78, 0xd5, 0x92, 0x88, 0xc8, 0x41, 0xaa, 0x53, 0x0d, 0xb6, 0x84, 0x5c, 0x4c, 0x8d, 0x96, 0x28, 0x93, 0xa0, 0x01, 0xce, 0x4e, 0x11, 0xa4, 0x96, 0x38, 0x73, 0xaa, 0x98, 0x13, 0x4a };
+  mprintf(L"\nPBKDF2 test2: %s", memcmp(Key,Res2,32)==0 ? L"OK":L"Failed");
+
+  pbkdf2((byte *)"just some long string pretending to be a password", 49, (byte *)"salt, salt, salt, a lot of salt", 31, Key, V1, V2, 65536);
+  byte Res3[32]={0x08, 0x0f, 0xa3, 0x1d, 0x42, 0x2d, 0xb0, 0x47, 0x83, 0x9b, 0xce, 0x3a, 0x3b, 0xce, 0x49, 0x51, 0xe2, 0x62, 0xb9, 0xff, 0x76, 0x2f, 0x57, 0xe9, 0xc4, 0x71, 0x96, 0xce, 0x4b, 0x6b, 0x6e, 0xbf};
+  mprintf(L"\nPBKDF2 test3: %s", memcmp(Key,Res3,32)==0 ? L"OK":L"Failed");
+}
+#endif

reference/unrar/dll.cpp

@@ -0,0 +1,474 @@
+#include "rar.hpp"
+
+static int RarErrorToDll(RAR_EXIT ErrCode);
+
+struct DataSet
+{
+  CommandData Cmd;
+  Archive Arc;
+  CmdExtract Extract;
+  int OpenMode;
+  int HeaderSize;
+
+  DataSet():Arc(&Cmd),Extract(&Cmd) {};
+};
+
+
+HANDLE PASCAL RAROpenArchive(struct RAROpenArchiveData *r)
+{
+  RAROpenArchiveDataEx rx;
+  memset(&rx,0,sizeof(rx));
+  rx.ArcName=r->ArcName;
+  rx.OpenMode=r->OpenMode;
+  rx.CmtBuf=r->CmtBuf;
+  rx.CmtBufSize=r->CmtBufSize;
+  HANDLE hArc=RAROpenArchiveEx(&rx);
+  r->OpenResult=rx.OpenResult;
+  r->CmtSize=rx.CmtSize;
+  r->CmtState=rx.CmtState;
+  return hArc;
+}
+
+
+HANDLE PASCAL RAROpenArchiveEx(struct RAROpenArchiveDataEx *r)
+{
+  DataSet *Data=NULL;
+  try
+  {
+    r->OpenResult=0;
+    Data=new DataSet;
+    Data->Cmd.DllError=0;
+    Data->OpenMode=r->OpenMode;
+    Data->Cmd.FileArgs.AddString(L"*");
+
+    char AnsiArcName[NM];
+    *AnsiArcName=0;
+    if (r->ArcName!=NULL)
+    {
+      strncpyz(AnsiArcName,r->ArcName,ASIZE(AnsiArcName));
+#ifdef _WIN_ALL
+      if (!AreFileApisANSI())
+      {
+        OemToCharBuffA(r->ArcName,AnsiArcName,ASIZE(AnsiArcName));
+        AnsiArcName[ASIZE(AnsiArcName)-1]=0;
+      }
+#endif
+    }
+
+    wchar ArcName[NM];
+    GetWideName(AnsiArcName,r->ArcNameW,ArcName,ASIZE(ArcName));
+
+    Data->Cmd.AddArcName(ArcName);
+    Data->Cmd.Overwrite=OVERWRITE_ALL;
+    Data->Cmd.VersionControl=1;
+
+    Data->Cmd.Callback=r->Callback;
+    Data->Cmd.UserData=r->UserData;
+
+    // Open shared mode is added by request of dll users, who need to
+    // browse and unpack archives while downloading.
+    Data->Cmd.OpenShared = true;
+    if (!Data->Arc.Open(ArcName,FMF_OPENSHARED))
+    {
+      r->OpenResult=ERAR_EOPEN;
+      delete Data;
+      return NULL;
+    }
+    if (!Data->Arc.IsArchive(true))
+    {
+      if (Data->Cmd.DllError!=0)
+        r->OpenResult=Data->Cmd.DllError;
+      else
+      {
+        RAR_EXIT ErrCode=ErrHandler.GetErrorCode();
+        if (ErrCode!=RARX_SUCCESS && ErrCode!=RARX_WARNING)
+          r->OpenResult=RarErrorToDll(ErrCode);
+        else
+          r->OpenResult=ERAR_BAD_ARCHIVE;
+      }
+      delete Data;
+      return NULL;
+    }
+    r->Flags=0;
+    
+    if (Data->Arc.Volume)
+      r->Flags|=0x01;
+    if (Data->Arc.Locked)
+      r->Flags|=0x04;
+    if (Data->Arc.Solid)
+      r->Flags|=0x08;
+    if (Data->Arc.NewNumbering)
+      r->Flags|=0x10;
+    if (Data->Arc.Signed)
+      r->Flags|=0x20;
+    if (Data->Arc.Protected)
+      r->Flags|=0x40;
+    if (Data->Arc.Encrypted)
+      r->Flags|=0x80;
+    if (Data->Arc.FirstVolume)
+      r->Flags|=0x100;
+
+    Array<wchar> CmtDataW;
+    if (r->CmtBufSize!=0 && Data->Arc.GetComment(&CmtDataW))
+    {
+      Array<char> CmtData(CmtDataW.Size()*4+1);
+      memset(&CmtData[0],0,CmtData.Size());
+      WideToChar(&CmtDataW[0],&CmtData[0],CmtData.Size()-1);
+      size_t Size=strlen(&CmtData[0])+1;
+
+      r->Flags|=2;
+      r->CmtState=Size>r->CmtBufSize ? ERAR_SMALL_BUF:1;
+      r->CmtSize=(uint)Min(Size,r->CmtBufSize);
+      memcpy(r->CmtBuf,&CmtData[0],r->CmtSize-1);
+      if (Size<=r->CmtBufSize)
+        r->CmtBuf[r->CmtSize-1]=0;
+    }
+    else
+      r->CmtState=r->CmtSize=0;
+    Data->Extract.ExtractArchiveInit(Data->Arc);
+    return (HANDLE)Data;
+  }
+  catch (RAR_EXIT ErrCode)
+  {
+    if (Data!=NULL && Data->Cmd.DllError!=0)
+      r->OpenResult=Data->Cmd.DllError;
+    else
+      r->OpenResult=RarErrorToDll(ErrCode);
+    if (Data != NULL)
+      delete Data;
+    return NULL;
+  }
+  catch (std::bad_alloc&) // Catch 'new' exception.
+  {
+    r->OpenResult=ERAR_NO_MEMORY;
+    if (Data != NULL)
+      delete Data;
+  }
+  return NULL; // To make compilers happy.
+}
+
+
+int PASCAL RARCloseArchive(HANDLE hArcData)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  bool Success=Data==NULL ? false:Data->Arc.Close();
+  delete Data;
+  return Success ? ERAR_SUCCESS : ERAR_ECLOSE;
+}
+
+
+int PASCAL RARReadHeader(HANDLE hArcData,struct RARHeaderData *D)
+{
+  struct RARHeaderDataEx X;
+  memset(&X,0,sizeof(X));
+
+  int Code=RARReadHeaderEx(hArcData,&X);
+
+  strncpyz(D->ArcName,X.ArcName,ASIZE(D->ArcName));
+  strncpyz(D->FileName,X.FileName,ASIZE(D->FileName));
+  D->Flags=X.Flags;
+  D->PackSize=X.PackSize;
+  D->UnpSize=X.UnpSize;
+  D->HostOS=X.HostOS;
+  D->FileCRC=X.FileCRC;
+  D->FileTime=X.FileTime;
+  D->UnpVer=X.UnpVer;
+  D->Method=X.Method;
+  D->FileAttr=X.FileAttr;
+  D->CmtSize=0;
+  D->CmtState=0;
+
+  return Code;
+}
+
+
+int PASCAL RARReadHeaderEx(HANDLE hArcData,struct RARHeaderDataEx *D)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  try
+  {
+    if ((Data->HeaderSize=(int)Data->Arc.SearchBlock(HEAD_FILE))<=0)
+    {
+      if (Data->Arc.Volume && Data->Arc.GetHeaderType()==HEAD_ENDARC &&
+          Data->Arc.EndArcHead.NextVolume)
+        if (MergeArchive(Data->Arc,NULL,false,'L'))
+        {
+          Data->Arc.Seek(Data->Arc.CurBlockPos,SEEK_SET);
+          return RARReadHeaderEx(hArcData,D);
+        }
+        else
+          return ERAR_EOPEN;
+
+      if (Data->Arc.BrokenHeader)
+        return ERAR_BAD_DATA;
+
+      // Might be necessary if RARSetPassword is still called instead of
+      // open callback for RAR5 archives and if password is invalid.
+      if (Data->Arc.FailedHeaderDecryption)
+        return ERAR_BAD_PASSWORD;
+      
+      return ERAR_END_ARCHIVE;
+    }
+    FileHeader *hd=&Data->Arc.FileHead;
+    if (Data->OpenMode==RAR_OM_LIST && hd->SplitBefore)
+    {
+      int Code=RARProcessFile(hArcData,RAR_SKIP,NULL,NULL);
+      if (Code==0)
+        return RARReadHeaderEx(hArcData,D);
+      else
+        return Code;
+    }
+    wcsncpy(D->ArcNameW,Data->Arc.FileName,ASIZE(D->ArcNameW));
+    WideToChar(D->ArcNameW,D->ArcName,ASIZE(D->ArcName));
+
+    wcsncpy(D->FileNameW,hd->FileName,ASIZE(D->FileNameW));
+    WideToChar(D->FileNameW,D->FileName,ASIZE(D->FileName));
+#ifdef _WIN_ALL
+    CharToOemA(D->FileName,D->FileName);
+#endif
+
+    D->Flags=0;
+    if (hd->SplitBefore)
+      D->Flags|=RHDF_SPLITBEFORE;
+    if (hd->SplitAfter)
+      D->Flags|=RHDF_SPLITAFTER;
+    if (hd->Encrypted)
+      D->Flags|=RHDF_ENCRYPTED;
+    if (hd->Solid)
+      D->Flags|=RHDF_SOLID;
+    if (hd->Dir)
+      D->Flags|=RHDF_DIRECTORY;
+
+    D->PackSize=uint(hd->PackSize & 0xffffffff);
+    D->PackSizeHigh=uint(hd->PackSize>>32);
+    D->UnpSize=uint(hd->UnpSize & 0xffffffff);
+    D->UnpSizeHigh=uint(hd->UnpSize>>32);
+    D->HostOS=hd->HSType==HSYS_WINDOWS ? HOST_WIN32:HOST_UNIX;
+    if (Data->Arc.Format==RARFMT50)
+      D->UnpVer=Data->Arc.FileHead.UnpVer==0 ? 50 : 200; // If it is not 0, just set it to something big.
+    else
+      D->UnpVer=Data->Arc.FileHead.UnpVer;
+    D->FileCRC=hd->FileHash.CRC32;
+    D->FileTime=hd->mtime.GetDos();
+    
+    uint64 MRaw=hd->mtime.GetWin();
+    D->MtimeLow=(uint)MRaw;
+    D->MtimeHigh=(uint)(MRaw>>32);
+    uint64 CRaw=hd->ctime.GetWin();
+    D->CtimeLow=(uint)CRaw;
+    D->CtimeHigh=(uint)(CRaw>>32);
+    uint64 ARaw=hd->atime.GetWin();
+    D->AtimeLow=(uint)ARaw;
+    D->AtimeHigh=(uint)(ARaw>>32);
+
+    D->Method=hd->Method+0x30;
+    D->FileAttr=hd->FileAttr;
+    D->CmtSize=0;
+    D->CmtState=0;
+
+    D->DictSize=uint(hd->WinSize/1024);
+
+    switch (hd->FileHash.Type)
+    {
+      case HASH_RAR14:
+      case HASH_CRC32:
+        D->HashType=RAR_HASH_CRC32;
+        break;
+      case HASH_BLAKE2:
+        D->HashType=RAR_HASH_BLAKE2;
+        memcpy(D->Hash,hd->FileHash.Digest,BLAKE2_DIGEST_SIZE);
+        break;
+      default:
+        D->HashType=RAR_HASH_NONE;
+        break;
+    }
+
+    D->RedirType=hd->RedirType;
+    // RedirNameSize sanity check is useful in case some developer
+    // did not initialize Reserved area with 0 as required in docs.
+    // We have taken 'Redir*' fields from Reserved area. We may remove
+    // this RedirNameSize check sometimes later.
+    if (hd->RedirType!=FSREDIR_NONE && D->RedirName!=NULL &&
+        D->RedirNameSize>0 && D->RedirNameSize<100000)
+      wcsncpyz(D->RedirName,hd->RedirName,D->RedirNameSize);
+    D->DirTarget=hd->DirTarget;
+  }
+  catch (RAR_EXIT ErrCode)
+  {
+    return Data->Cmd.DllError!=0 ? Data->Cmd.DllError : RarErrorToDll(ErrCode);
+  }
+  return ERAR_SUCCESS;
+}
+
+
+int PASCAL ProcessFile(HANDLE hArcData,int Operation,char *DestPath,char *DestName,wchar *DestPathW,wchar *DestNameW)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  try
+  {
+    Data->Cmd.DllError=0;
+    if (Data->OpenMode==RAR_OM_LIST || Data->OpenMode==RAR_OM_LIST_INCSPLIT ||
+        Operation==RAR_SKIP && !Data->Arc.Solid)
+    {
+      if (Data->Arc.Volume && Data->Arc.GetHeaderType()==HEAD_FILE &&
+          Data->Arc.FileHead.SplitAfter)
+        if (MergeArchive(Data->Arc,NULL,false,'L'))
+        {
+          Data->Arc.Seek(Data->Arc.CurBlockPos,SEEK_SET);
+          return ERAR_SUCCESS;
+        }
+        else
+          return ERAR_EOPEN;
+      Data->Arc.SeekToNext();
+    }
+    else
+    {
+      Data->Cmd.DllOpMode=Operation;
+
+      *Data->Cmd.ExtrPath=0;
+      *Data->Cmd.DllDestName=0;
+
+      if (DestPath!=NULL)
+      {
+        char ExtrPathA[NM];
+        strncpyz(ExtrPathA,DestPath,ASIZE(ExtrPathA)-2);
+#ifdef _WIN_ALL
+        // We must not apply OemToCharBuffA directly to DestPath,
+        // because we do not know DestPath length and OemToCharBuffA
+        // does not stop at 0.
+        OemToCharA(ExtrPathA,ExtrPathA);
+#endif
+        CharToWide(ExtrPathA,Data->Cmd.ExtrPath,ASIZE(Data->Cmd.ExtrPath));
+        AddEndSlash(Data->Cmd.ExtrPath,ASIZE(Data->Cmd.ExtrPath));
+      }
+      if (DestName!=NULL)
+      {
+        char DestNameA[NM];
+        strncpyz(DestNameA,DestName,ASIZE(DestNameA)-2);
+#ifdef _WIN_ALL
+        // We must not apply OemToCharBuffA directly to DestName,
+        // because we do not know DestName length and OemToCharBuffA
+        // does not stop at 0.
+        OemToCharA(DestNameA,DestNameA);
+#endif
+        CharToWide(DestNameA,Data->Cmd.DllDestName,ASIZE(Data->Cmd.DllDestName));
+      }
+
+      if (DestPathW!=NULL)
+      {
+        wcsncpy(Data->Cmd.ExtrPath,DestPathW,ASIZE(Data->Cmd.ExtrPath));
+        AddEndSlash(Data->Cmd.ExtrPath,ASIZE(Data->Cmd.ExtrPath));
+      }
+
+      if (DestNameW!=NULL)
+        wcsncpyz(Data->Cmd.DllDestName,DestNameW,ASIZE(Data->Cmd.DllDestName));
+
+      wcscpy(Data->Cmd.Command,Operation==RAR_EXTRACT ? L"X":L"T");
+      Data->Cmd.Test=Operation!=RAR_EXTRACT;
+      bool Repeat=false;
+      Data->Extract.ExtractCurrentFile(Data->Arc,Data->HeaderSize,Repeat);
+
+      // Now we process extra file information if any.
+      //
+      // Archive can be closed if we process volumes, next volume is missing
+      // and current one is already removed or deleted. So we need to check
+      // if archive is still open to avoid calling file operations on
+      // the invalid file handle. Some of our file operations like Seek()
+      // process such invalid handle correctly, some not.
+      while (Data->Arc.IsOpened() && Data->Arc.ReadHeader()!=0 && 
+             Data->Arc.GetHeaderType()==HEAD_SERVICE)
+      {
+        Data->Extract.ExtractCurrentFile(Data->Arc,Data->HeaderSize,Repeat);
+        Data->Arc.SeekToNext();
+      }
+      Data->Arc.Seek(Data->Arc.CurBlockPos,SEEK_SET);
+    }
+  }
+  catch (std::bad_alloc&)
+  {
+    return ERAR_NO_MEMORY;
+  }
+  catch (RAR_EXIT ErrCode)
+  {
+    return Data->Cmd.DllError!=0 ? Data->Cmd.DllError : RarErrorToDll(ErrCode);
+  }
+  return Data->Cmd.DllError;
+}
+
+
+int PASCAL RARProcessFile(HANDLE hArcData,int Operation,char *DestPath,char *DestName)
+{
+  return(ProcessFile(hArcData,Operation,DestPath,DestName,NULL,NULL));
+}
+
+
+int PASCAL RARProcessFileW(HANDLE hArcData,int Operation,wchar *DestPath,wchar *DestName)
+{
+  return(ProcessFile(hArcData,Operation,NULL,NULL,DestPath,DestName));
+}
+
+
+void PASCAL RARSetChangeVolProc(HANDLE hArcData,CHANGEVOLPROC ChangeVolProc)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  Data->Cmd.ChangeVolProc=ChangeVolProc;
+}
+
+
+void PASCAL RARSetCallback(HANDLE hArcData,UNRARCALLBACK Callback,LPARAM UserData)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  Data->Cmd.Callback=Callback;
+  Data->Cmd.UserData=UserData;
+}
+
+
+void PASCAL RARSetProcessDataProc(HANDLE hArcData,PROCESSDATAPROC ProcessDataProc)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  Data->Cmd.ProcessDataProc=ProcessDataProc;
+}
+
+
+#ifndef RAR_NOCRYPT
+void PASCAL RARSetPassword(HANDLE hArcData,char *Password)
+{
+  DataSet *Data=(DataSet *)hArcData;
+  wchar PasswordW[MAXPASSWORD];
+  GetWideName(Password,NULL,PasswordW,ASIZE(PasswordW));
+  Data->Cmd.Password.Set(PasswordW);
+  cleandata(PasswordW,sizeof(PasswordW));
+}
+#endif
+
+
+int PASCAL RARGetDllVersion()
+{
+  return RAR_DLL_VERSION;
+}
+
+
+static int RarErrorToDll(RAR_EXIT ErrCode)
+{
+  switch(ErrCode)
+  {
+    case RARX_FATAL:
+      return ERAR_EREAD;
+    case RARX_CRC:
+      return ERAR_BAD_DATA;
+    case RARX_WRITE:
+      return ERAR_EWRITE;
+    case RARX_OPEN:
+      return ERAR_EOPEN;
+    case RARX_CREATE:
+      return ERAR_ECREATE;
+    case RARX_MEMORY:
+      return ERAR_NO_MEMORY;
+    case RARX_BADPWD:
+      return ERAR_BAD_PASSWORD;
+    case RARX_SUCCESS:
+      return ERAR_SUCCESS; // 0.
+    default:
+      return ERAR_UNKNOWN;
+  }
+}

reference/unrar/dll.def

@@ -0,0 +1,12 @@
+EXPORTS
+  RAROpenArchive
+  RAROpenArchiveEx
+  RARCloseArchive
+  RARReadHeader
+  RARReadHeaderEx
+  RARProcessFile
+  RARSetCallback
+  RARSetChangeVolProc
+  RARSetProcessDataProc
+  RARSetPassword
+  RARGetDllVersion

reference/unrar/dll.hpp

@@ -0,0 +1,185 @@
+#ifndef _UNRAR_DLL_
+#define _UNRAR_DLL_
+
+#pragma pack(1)
+
+#define ERAR_SUCCESS             0
+#define ERAR_END_ARCHIVE        10
+#define ERAR_NO_MEMORY          11
+#define ERAR_BAD_DATA           12
+#define ERAR_BAD_ARCHIVE        13
+#define ERAR_UNKNOWN_FORMAT     14
+#define ERAR_EOPEN              15
+#define ERAR_ECREATE            16
+#define ERAR_ECLOSE             17
+#define ERAR_EREAD              18
+#define ERAR_EWRITE             19
+#define ERAR_SMALL_BUF          20
+#define ERAR_UNKNOWN            21
+#define ERAR_MISSING_PASSWORD   22
+#define ERAR_EREFERENCE         23
+#define ERAR_BAD_PASSWORD       24
+
+#define RAR_OM_LIST              0
+#define RAR_OM_EXTRACT           1
+#define RAR_OM_LIST_INCSPLIT     2
+
+#define RAR_SKIP              0
+#define RAR_TEST              1
+#define RAR_EXTRACT           2
+
+#define RAR_VOL_ASK           0
+#define RAR_VOL_NOTIFY        1
+
+#define RAR_DLL_VERSION       8
+
+#define RAR_HASH_NONE         0
+#define RAR_HASH_CRC32        1
+#define RAR_HASH_BLAKE2       2
+
+
+#ifdef _UNIX
+#define CALLBACK
+#define PASCAL
+#define LONG long
+#define HANDLE void *
+#define LPARAM long
+#define UINT unsigned int
+#endif
+
+#define RHDF_SPLITBEFORE 0x01
+#define RHDF_SPLITAFTER  0x02
+#define RHDF_ENCRYPTED   0x04
+#define RHDF_SOLID       0x10
+#define RHDF_DIRECTORY   0x20
+
+
+struct RARHeaderData
+{
+  char         ArcName[260];
+  char         FileName[260];
+  unsigned int Flags;
+  unsigned int PackSize;
+  unsigned int UnpSize;
+  unsigned int HostOS;
+  unsigned int FileCRC;
+  unsigned int FileTime;
+  unsigned int UnpVer;
+  unsigned int Method;
+  unsigned int FileAttr;
+  char         *CmtBuf;
+  unsigned int CmtBufSize;
+  unsigned int CmtSize;
+  unsigned int CmtState;
+};
+
+
+struct RARHeaderDataEx
+{
+  char         ArcName[1024];
+  wchar_t      ArcNameW[1024];
+  char         FileName[1024];
+  wchar_t      FileNameW[1024];
+  unsigned int Flags;
+  unsigned int PackSize;
+  unsigned int PackSizeHigh;
+  unsigned int UnpSize;
+  unsigned int UnpSizeHigh;
+  unsigned int HostOS;
+  unsigned int FileCRC;
+  unsigned int FileTime;
+  unsigned int UnpVer;
+  unsigned int Method;
+  unsigned int FileAttr;
+  char         *CmtBuf;
+  unsigned int CmtBufSize;
+  unsigned int CmtSize;
+  unsigned int CmtState;
+  unsigned int DictSize;
+  unsigned int HashType;
+  char         Hash[32];
+  unsigned int RedirType;
+  wchar_t      *RedirName;
+  unsigned int RedirNameSize;
+  unsigned int DirTarget;
+  unsigned int MtimeLow;
+  unsigned int MtimeHigh;
+  unsigned int CtimeLow;
+  unsigned int CtimeHigh;
+  unsigned int AtimeLow;
+  unsigned int AtimeHigh;
+  unsigned int Reserved[988];
+};
+
+
+struct RAROpenArchiveData
+{
+  char         *ArcName;
+  unsigned int OpenMode;
+  unsigned int OpenResult;
+  char         *CmtBuf;
+  unsigned int CmtBufSize;
+  unsigned int CmtSize;
+  unsigned int CmtState;
+};
+
+typedef int (CALLBACK *UNRARCALLBACK)(UINT msg,LPARAM UserData,LPARAM P1,LPARAM P2);
+
+#define ROADF_VOLUME       0x0001
+#define ROADF_COMMENT      0x0002
+#define ROADF_LOCK         0x0004
+#define ROADF_SOLID        0x0008
+#define ROADF_NEWNUMBERING 0x0010
+#define ROADF_SIGNED       0x0020
+#define ROADF_RECOVERY     0x0040
+#define ROADF_ENCHEADERS   0x0080
+#define ROADF_FIRSTVOLUME  0x0100
+
+struct RAROpenArchiveDataEx
+{
+  char         *ArcName;
+  wchar_t      *ArcNameW;
+  unsigned int  OpenMode;
+  unsigned int  OpenResult;
+  char         *CmtBuf;
+  unsigned int  CmtBufSize;
+  unsigned int  CmtSize;
+  unsigned int  CmtState;
+  unsigned int  Flags;
+  UNRARCALLBACK Callback;
+  LPARAM        UserData;
+  unsigned int  Reserved[28];
+};
+
+enum UNRARCALLBACK_MESSAGES {
+  UCM_CHANGEVOLUME,UCM_PROCESSDATA,UCM_NEEDPASSWORD,UCM_CHANGEVOLUMEW,
+  UCM_NEEDPASSWORDW
+};
+
+typedef int (PASCAL *CHANGEVOLPROC)(char *ArcName,int Mode);
+typedef int (PASCAL *PROCESSDATAPROC)(unsigned char *Addr,int Size);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+HANDLE PASCAL RAROpenArchive(struct RAROpenArchiveData *ArchiveData);
+HANDLE PASCAL RAROpenArchiveEx(struct RAROpenArchiveDataEx *ArchiveData);
+int    PASCAL RARCloseArchive(HANDLE hArcData);
+int    PASCAL RARReadHeader(HANDLE hArcData,struct RARHeaderData *HeaderData);
+int    PASCAL RARReadHeaderEx(HANDLE hArcData,struct RARHeaderDataEx *HeaderData);
+int    PASCAL RARProcessFile(HANDLE hArcData,int Operation,char *DestPath,char *DestName);
+int    PASCAL RARProcessFileW(HANDLE hArcData,int Operation,wchar_t *DestPath,wchar_t *DestName);
+void   PASCAL RARSetCallback(HANDLE hArcData,UNRARCALLBACK Callback,LPARAM UserData);
+void   PASCAL RARSetChangeVolProc(HANDLE hArcData,CHANGEVOLPROC ChangeVolProc);
+void   PASCAL RARSetProcessDataProc(HANDLE hArcData,PROCESSDATAPROC ProcessDataProc);
+void   PASCAL RARSetPassword(HANDLE hArcData,char *Password);
+int    PASCAL RARGetDllVersion();
+
+#ifdef __cplusplus
+}
+#endif
+
+#pragma pack()
+
+#endif

reference/unrar/dll.rc

@@ -0,0 +1,28 @@
+#include <windows.h>
+#include <commctrl.h>
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION 5, 50, 100, 2418
+PRODUCTVERSION 5, 50, 100, 2418
+FILEOS VOS__WINDOWS32
+FILETYPE VFT_APP
+{
+  BLOCK "StringFileInfo"
+  {
+    BLOCK "040904E4"
+    {
+      VALUE "CompanyName", "Alexander Roshal\0"
+      VALUE "ProductName", "RAR decompression library\0"
+      VALUE "FileDescription", "RAR decompression library\0"
+      VALUE "FileVersion", "5.50.0\0"
+      VALUE "ProductVersion", "5.50.0\0"
+      VALUE "LegalCopyright", "Copyright © Alexander Roshal 1993-2017\0"
+      VALUE "OriginalFilename", "Unrar.dll\0"
+    }
+  }
+  BLOCK "VarFileInfo"
+  {
+    VALUE "Translation", 0x0409, 0x04E4
+  }
+}
+

reference/unrar/encname.cpp

@@ -0,0 +1,69 @@
+#include "rar.hpp"
+
+EncodeFileName::EncodeFileName()
+{
+  Flags=0;
+  FlagBits=0;
+  FlagsPos=0;
+  DestSize=0;
+}
+
+
+
+
+void EncodeFileName::Decode(char *Name,byte *EncName,size_t EncSize,wchar *NameW,
+                            size_t MaxDecSize)
+{
+  size_t EncPos=0,DecPos=0;
+  byte HighByte=EncPos<EncSize ? EncName[EncPos++] : 0;
+  while (EncPos<EncSize && DecPos<MaxDecSize)
+  {
+    if (FlagBits==0)
+    {
+      if (EncPos>=EncSize)
+        break;
+      Flags=EncName[EncPos++];
+      FlagBits=8;
+    }
+    switch(Flags>>6)
+    {
+      case 0:
+        if (EncPos>=EncSize)
+          break;
+        NameW[DecPos++]=EncName[EncPos++];
+        break;
+      case 1:
+        if (EncPos>=EncSize)
+          break;
+        NameW[DecPos++]=EncName[EncPos++]+(HighByte<<8);
+        break;
+      case 2:
+        if (EncPos+1>=EncSize)
+          break;
+        NameW[DecPos++]=EncName[EncPos]+(EncName[EncPos+1]<<8);
+        EncPos+=2;
+        break;
+      case 3:
+        {
+          if (EncPos>=EncSize)
+            break;
+          int Length=EncName[EncPos++];
+          if ((Length & 0x80)!=0)
+          {
+            if (EncPos>=EncSize)
+              break;
+            byte Correction=EncName[EncPos++];
+            for (Length=(Length&0x7f)+2;Length>0 && DecPos<MaxDecSize;Length--,DecPos++)
+              NameW[DecPos]=((Name[DecPos]+Correction)&0xff)+(HighByte<<8);
+          }
+          else
+            for (Length+=2;Length>0 && DecPos<MaxDecSize;Length--,DecPos++)
+              NameW[DecPos]=Name[DecPos];
+        }
+        break;
+    }
+    Flags<<=2;
+    FlagBits-=2;
+  }
+  NameW[DecPos<MaxDecSize ? DecPos:MaxDecSize-1]=0;
+}

reference/unrar/encname.hpp

@@ -0,0 +1,20 @@
+#ifndef _RAR_ENCNAME_
+#define _RAR_ENCNAME_
+
+class EncodeFileName
+{
+  private:
+    void AddFlags(int Value);
+
+    byte *EncName;
+    byte Flags;
+    uint FlagBits;
+    size_t FlagsPos;
+    size_t DestSize;
+  public:
+    EncodeFileName();
+    size_t Encode(char *Name,wchar *NameW,byte *EncName);
+    void Decode(char *Name,byte *EncName,size_t EncSize,wchar *NameW,size_t MaxDecSize);
+};
+
+#endif

reference/unrar/errhnd.cpp

@@ -0,0 +1,391 @@
+#include "rar.hpp"
+
+ErrorHandler::ErrorHandler()
+{
+  Clean();
+}
+
+
+void ErrorHandler::Clean()
+{
+  ExitCode=RARX_SUCCESS;
+  ErrCount=0;
+  EnableBreak=true;
+  Silent=false;
+  UserBreak=false;
+  MainExit=false;
+  DisableShutdown=false;
+}
+
+
+void ErrorHandler::MemoryError()
+{
+  MemoryErrorMsg();
+  Exit(RARX_MEMORY);
+}
+
+
+void ErrorHandler::OpenError(const wchar *FileName)
+{
+#ifndef SILENT
+  OpenErrorMsg(FileName);
+  Exit(RARX_OPEN);
+#endif
+}
+
+
+void ErrorHandler::CloseError(const wchar *FileName)
+{
+  if (!UserBreak)
+  {
+    uiMsg(UIERROR_FILECLOSE,FileName);
+    SysErrMsg();
+  }
+#if !defined(SILENT) || defined(RARDLL)
+  Exit(RARX_FATAL);
+#endif
+}
+
+
+void ErrorHandler::ReadError(const wchar *FileName)
+{
+#ifndef SILENT
+  ReadErrorMsg(FileName);
+#endif
+#if !defined(SILENT) || defined(RARDLL)
+  Exit(RARX_FATAL);
+#endif
+}
+
+
+bool ErrorHandler::AskRepeatRead(const wchar *FileName)
+{
+#if !defined(SILENT) && !defined(SFX_MODULE)
+  if (!Silent)
+  {
+    SysErrMsg();
+    bool Repeat=uiAskRepeatRead(FileName);
+    if (!Repeat) // Disable shutdown if user pressed Cancel in error dialog.
+      DisableShutdown=true;
+    return Repeat;
+  }
+#endif
+  return false;
+}
+
+
+void ErrorHandler::WriteError(const wchar *ArcName,const wchar *FileName)
+{
+#ifndef SILENT
+  WriteErrorMsg(ArcName,FileName);
+#endif
+#if !defined(SILENT) || defined(RARDLL)
+  Exit(RARX_WRITE);
+#endif
+}
+
+
+#ifdef _WIN_ALL
+void ErrorHandler::WriteErrorFAT(const wchar *FileName)
+{
+  SysErrMsg();
+  uiMsg(UIERROR_NTFSREQUIRED,FileName);
+#if !defined(SILENT) && !defined(SFX_MODULE) || defined(RARDLL)
+  Exit(RARX_WRITE);
+#endif
+}
+#endif
+
+
+bool ErrorHandler::AskRepeatWrite(const wchar *FileName,bool DiskFull)
+{
+#ifndef SILENT
+  if (!Silent)
+  {
+    // We do not display "repeat write" prompt in Android, so we do not
+    // need the matching system error message.
+    SysErrMsg();
+    bool Repeat=uiAskRepeatWrite(FileName,DiskFull);
+    if (!Repeat) // Disable shutdown if user pressed Cancel in error dialog.
+      DisableShutdown=true;
+    return Repeat;
+  }
+#endif
+  return false;
+}
+
+
+void ErrorHandler::SeekError(const wchar *FileName)
+{
+  if (!UserBreak)
+  {
+    uiMsg(UIERROR_FILESEEK,FileName);
+    SysErrMsg();
+  }
+#if !defined(SILENT) || defined(RARDLL)
+  Exit(RARX_FATAL);
+#endif
+}
+
+
+void ErrorHandler::GeneralErrMsg(const wchar *fmt,...)
+{
+  va_list arglist;
+  va_start(arglist,fmt);
+  wchar Msg[1024];
+  vswprintf(Msg,ASIZE(Msg),fmt,arglist);
+  uiMsg(UIERROR_GENERALERRMSG,Msg);
+  SysErrMsg();
+  va_end(arglist);
+}
+
+
+void ErrorHandler::MemoryErrorMsg()
+{
+  uiMsg(UIERROR_MEMORY);
+  SetErrorCode(RARX_MEMORY);
+}
+
+
+void ErrorHandler::OpenErrorMsg(const wchar *FileName)
+{
+  OpenErrorMsg(NULL,FileName);
+}
+
+
+void ErrorHandler::OpenErrorMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_FILEOPEN,ArcName,FileName);
+  SysErrMsg();
+  SetErrorCode(RARX_OPEN);
+}
+
+
+void ErrorHandler::CreateErrorMsg(const wchar *FileName)
+{
+  CreateErrorMsg(NULL,FileName);
+}
+
+
+void ErrorHandler::CreateErrorMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_FILECREATE,ArcName,FileName);
+  SysErrMsg();
+  SetErrorCode(RARX_CREATE);
+}
+
+
+void ErrorHandler::ReadErrorMsg(const wchar *FileName)
+{
+  ReadErrorMsg(NULL,FileName);
+}
+
+
+void ErrorHandler::ReadErrorMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_FILEREAD,ArcName,FileName);
+  SysErrMsg();
+  SetErrorCode(RARX_FATAL);
+}
+
+
+void ErrorHandler::WriteErrorMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_FILEWRITE,ArcName,FileName);
+  SysErrMsg();
+  SetErrorCode(RARX_WRITE);
+}
+
+
+void ErrorHandler::ArcBrokenMsg(const wchar *ArcName)
+{
+  uiMsg(UIERROR_ARCBROKEN,ArcName);
+  SetErrorCode(RARX_CRC);
+}
+
+
+void ErrorHandler::ChecksumFailedMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_CHECKSUM,ArcName,FileName);
+  SetErrorCode(RARX_CRC);
+}
+
+
+void ErrorHandler::UnknownMethodMsg(const wchar *ArcName,const wchar *FileName)
+{
+  uiMsg(UIERROR_UNKNOWNMETHOD,ArcName,FileName);
+  ErrHandler.SetErrorCode(RARX_FATAL);
+}
+
+
+void ErrorHandler::Exit(RAR_EXIT ExitCode)
+{
+  uiAlarm(UIALARM_ERROR);
+  Throw(ExitCode);
+}
+
+
+void ErrorHandler::SetErrorCode(RAR_EXIT Code)
+{
+  switch(Code)
+  {
+    case RARX_WARNING:
+    case RARX_USERBREAK:
+      if (ExitCode==RARX_SUCCESS)
+        ExitCode=Code;
+      break;
+    case RARX_CRC:
+      if (ExitCode!=RARX_BADPWD)
+        ExitCode=Code;
+      break;
+    case RARX_FATAL:
+      if (ExitCode==RARX_SUCCESS || ExitCode==RARX_WARNING)
+        ExitCode=RARX_FATAL;
+      break;
+    default:
+      ExitCode=Code;
+      break;
+  }
+  ErrCount++;
+}
+
+
+#ifdef _WIN_ALL
+BOOL __stdcall ProcessSignal(DWORD SigType)
+#else
+#if defined(__sun)
+extern "C"
+#endif
+void _stdfunction ProcessSignal(int SigType)
+#endif
+{
+#ifdef _WIN_ALL
+  // When a console application is run as a service, this allows the service
+  // to continue running after the user logs off. 
+  if (SigType==CTRL_LOGOFF_EVENT)
+    return TRUE;
+#endif
+
+  ErrHandler.UserBreak=true;
+  mprintf(St(MBreak));
+
+#ifdef _WIN_ALL
+  // Let the main thread to handle 'throw' and destroy file objects.
+  for (uint I=0;!ErrHandler.MainExit && I<50;I++)
+    Sleep(100);
+#if defined(USE_RC) && !defined(SFX_MODULE) && !defined(RARDLL)
+  ExtRes.UnloadDLL();
+#endif
+  exit(RARX_USERBREAK);
+#endif
+
+#ifdef _UNIX
+  static uint BreakCount=0;
+  // User continues to press Ctrl+C, exit immediately without cleanup.
+  if (++BreakCount>1)
+    exit(RARX_USERBREAK);
+  // Otherwise return from signal handler and let Wait() function to close
+  // files and quit. We cannot use the same approach as in Windows,
+  // because Unix signal handler can block execution of our main code.
+#endif
+
+#if defined(_WIN_ALL) && !defined(_MSC_VER)
+  // never reached, just to avoid a compiler warning
+  return TRUE;
+#endif
+}
+
+
+void ErrorHandler::SetSignalHandlers(bool Enable)
+{
+  EnableBreak=Enable;
+#ifdef _WIN_ALL
+  SetConsoleCtrlHandler(Enable ? ProcessSignal:NULL,TRUE);
+#else
+  signal(SIGINT,Enable ? ProcessSignal:SIG_IGN);
+  signal(SIGTERM,Enable ? ProcessSignal:SIG_IGN);
+#endif
+}
+
+
+void ErrorHandler::Throw(RAR_EXIT Code)
+{
+  if (Code==RARX_USERBREAK && !EnableBreak)
+    return;
+#if !defined(SILENT)
+  // Do not write "aborted" when just displaying online help.
+  if (Code!=RARX_SUCCESS && Code!=RARX_USERERROR)
+    mprintf(L"\n%s\n",St(MProgAborted));
+#endif
+  SetErrorCode(Code);
+  throw Code;
+}
+
+
+void ErrorHandler::SysErrMsg()
+{
+#if !defined(SFX_MODULE) && !defined(SILENT)
+#ifdef _WIN_ALL
+  wchar *lpMsgBuf=NULL;
+  int ErrType=GetLastError();
+  if (ErrType!=0 && FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
+              NULL,ErrType,MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+              (LPTSTR)&lpMsgBuf,0,NULL))
+  {
+    wchar *CurMsg=lpMsgBuf;
+    while (CurMsg!=NULL)
+    {
+      while (*CurMsg=='\r' || *CurMsg=='\n')
+        CurMsg++;
+      if (*CurMsg==0)
+        break;
+      wchar *EndMsg=wcschr(CurMsg,'\r');
+      if (EndMsg==NULL)
+        EndMsg=wcschr(CurMsg,'\n');
+      if (EndMsg!=NULL)
+      {
+        *EndMsg=0;
+        EndMsg++;
+      }
+      uiMsg(UIERROR_SYSERRMSG,CurMsg);
+      CurMsg=EndMsg;
+    }
+  }
+  LocalFree( lpMsgBuf );
+#endif
+
+#if defined(_UNIX) || defined(_EMX)
+  if (errno!=0)
+  {
+    char *err=strerror(errno);
+    if (err!=NULL)
+    {
+      wchar Msg[1024];
+      CharToWide(err,Msg,ASIZE(Msg));
+      uiMsg(UIERROR_SYSERRMSG,Msg);
+    }
+  }
+#endif
+
+#endif
+}
+
+
+int ErrorHandler::GetSystemErrorCode()
+{
+#ifdef _WIN_ALL
+  return GetLastError();
+#else
+  return errno;
+#endif
+}
+
+
+void ErrorHandler::SetSystemErrorCode(int Code)
+{
+#ifdef _WIN_ALL
+  SetLastError(Code);
+#else
+  errno=Code;
+#endif
+}

reference/unrar/errhnd.hpp

@@ -0,0 +1,70 @@
+#ifndef _RAR_ERRHANDLER_
+#define _RAR_ERRHANDLER_
+
+enum RAR_EXIT // RAR exit code.
+{ 
+  RARX_SUCCESS   =   0,
+  RARX_WARNING   =   1,
+  RARX_FATAL     =   2,
+  RARX_CRC       =   3,
+  RARX_LOCK      =   4,
+  RARX_WRITE     =   5,
+  RARX_OPEN      =   6,
+  RARX_USERERROR =   7,
+  RARX_MEMORY    =   8,
+  RARX_CREATE    =   9,
+  RARX_NOFILES   =  10,
+  RARX_BADPWD    =  11,
+  RARX_USERBREAK = 255
+};
+
+class ErrorHandler
+{
+  private:
+    RAR_EXIT ExitCode;
+    uint ErrCount;
+    bool EnableBreak;
+    bool Silent;
+    bool DisableShutdown; // Shutdown is not suitable after last error.
+  public:
+    ErrorHandler();
+    void Clean();
+    void MemoryError();
+    void OpenError(const wchar *FileName);
+    void CloseError(const wchar *FileName);
+    void ReadError(const wchar *FileName);
+    bool AskRepeatRead(const wchar *FileName);
+    void WriteError(const wchar *ArcName,const wchar *FileName);
+    void WriteErrorFAT(const wchar *FileName);
+    bool AskRepeatWrite(const wchar *FileName,bool DiskFull);
+    void SeekError(const wchar *FileName);
+    void GeneralErrMsg(const wchar *fmt,...);
+    void MemoryErrorMsg();
+    void OpenErrorMsg(const wchar *FileName);
+    void OpenErrorMsg(const wchar *ArcName,const wchar *FileName);
+    void CreateErrorMsg(const wchar *FileName);
+    void CreateErrorMsg(const wchar *ArcName,const wchar *FileName);
+    void ReadErrorMsg(const wchar *FileName);
+    void ReadErrorMsg(const wchar *ArcName,const wchar *FileName);
+    void WriteErrorMsg(const wchar *ArcName,const wchar *FileName);
+    void ArcBrokenMsg(const wchar *ArcName);
+    void ChecksumFailedMsg(const wchar *ArcName,const wchar *FileName);
+    void UnknownMethodMsg(const wchar *ArcName,const wchar *FileName);
+    void Exit(RAR_EXIT ExitCode);
+    void SetErrorCode(RAR_EXIT Code);
+    RAR_EXIT GetErrorCode() {return ExitCode;}
+    uint GetErrorCount() {return ErrCount;}
+    void SetSignalHandlers(bool Enable);
+    void Throw(RAR_EXIT Code);
+    void SetSilent(bool Mode) {Silent=Mode;};
+    void SysErrMsg();
+    int GetSystemErrorCode();
+    void SetSystemErrorCode(int Code);
+    bool IsShutdownEnabled() {return !DisableShutdown;}
+
+    bool UserBreak; // Ctrl+Break is pressed.
+    bool MainExit; // main() is completed.
+};
+
+
+#endif

reference/unrar/extinfo.cpp

@@ -0,0 +1,178 @@
+#include "rar.hpp"
+
+#include "hardlinks.cpp"
+#include "win32stm.cpp"
+
+#ifdef _WIN_ALL
+#include "win32acl.cpp"
+#include "win32lnk.cpp"
+#endif
+
+#ifdef _UNIX
+#include "uowners.cpp"
+#ifdef SAVE_LINKS
+#include "ulinks.cpp"
+#endif
+#endif
+
+
+
+// RAR2 service header extra records.
+#ifndef SFX_MODULE
+void SetExtraInfo20(CommandData *Cmd,Archive &Arc,wchar *Name)
+{
+  if (Cmd->Test)
+    return;
+  switch(Arc.SubBlockHead.SubType)
+  {
+#ifdef _UNIX
+    case UO_HEAD:
+      if (Cmd->ProcessOwners)
+        ExtractUnixOwner20(Arc,Name);
+      break;
+#endif
+#ifdef _WIN_ALL
+    case NTACL_HEAD:
+      if (Cmd->ProcessOwners)
+        ExtractACL20(Arc,Name);
+      break;
+    case STREAM_HEAD:
+      ExtractStreams20(Arc,Name);
+      break;
+#endif
+  }
+}
+#endif
+
+
+// RAR3 and RAR5 service header extra records.
+void SetExtraInfo(CommandData *Cmd,Archive &Arc,wchar *Name)
+{
+#ifdef _UNIX
+  if (!Cmd->Test && Cmd->ProcessOwners && Arc.Format==RARFMT15 &&
+      Arc.SubHead.CmpName(SUBHEAD_TYPE_UOWNER))
+    ExtractUnixOwner30(Arc,Name);
+#endif
+#ifdef _WIN_ALL
+  if (!Cmd->Test && Cmd->ProcessOwners && Arc.SubHead.CmpName(SUBHEAD_TYPE_ACL))
+    ExtractACL(Arc,Name);
+  if (Arc.SubHead.CmpName(SUBHEAD_TYPE_STREAM))
+    ExtractStreams(Arc,Name,Cmd->Test);
+#endif
+}
+
+
+// Extra data stored directly in file header.
+void SetFileHeaderExtra(CommandData *Cmd,Archive &Arc,wchar *Name)
+{
+#ifdef _UNIX
+   if (Cmd->ProcessOwners && Arc.Format==RARFMT50 && Arc.FileHead.UnixOwnerSet)
+     SetUnixOwner(Arc,Name);
+#endif
+}
+
+
+
+
+// Calculate a number of path components except \. and \..
+static int CalcAllowedDepth(const wchar *Name)
+{
+  int AllowedDepth=0;
+  while (*Name!=0)
+  {
+    if (IsPathDiv(Name[0]) && Name[1]!=0 && !IsPathDiv(Name[1]))
+    {
+      bool Dot=Name[1]=='.' && (IsPathDiv(Name[2]) || Name[2]==0);
+      bool Dot2=Name[1]=='.' && Name[2]=='.' && (IsPathDiv(Name[3]) || Name[3]==0);
+      if (!Dot && !Dot2)
+        AllowedDepth++;
+    }
+    Name++;
+  }
+  return AllowedDepth;
+}
+
+
+// Check if all existing path components are directories and not links.
+static bool LinkInPath(const wchar *Name)
+{
+  wchar Path[NM];
+  if (wcslen(Name)>=ASIZE(Path))
+    return true;  // It should not be that long, skip.
+  wcsncpyz(Path,Name,ASIZE(Path));
+  for (wchar *s=Path+wcslen(Path)-1;s>Path;s--)
+    if (IsPathDiv(*s))
+    {
+      *s=0;
+      FindData FD;
+      if (FindFile::FastFind(Path,&FD,true) && (FD.IsLink || !FD.IsDir))
+        return true;
+    }
+  return false;
+}
+
+
+bool IsRelativeSymlinkSafe(CommandData *Cmd,const wchar *SrcName,const wchar *PrepSrcName,const wchar *TargetName)
+{
+  // Catch root dir based /path/file paths also as stuff like \\?\.
+  // Do not check PrepSrcName here, it can be root based if destination path
+  // is a root based.
+  if (IsFullRootPath(SrcName) || IsFullRootPath(TargetName))
+    return false;
+
+  // Number of ".." in link target.
+  int UpLevels=0;
+  for (int Pos=0;*TargetName!=0;Pos++)
+  {
+    bool Dot2=TargetName[0]=='.' && TargetName[1]=='.' && 
+              (IsPathDiv(TargetName[2]) || TargetName[2]==0) &&
+              (Pos==0 || IsPathDiv(*(TargetName-1)));
+    if (Dot2)
+      UpLevels++;
+    TargetName++;
+  }
+  // If link target includes "..", it must not have another links
+  // in the path, because they can bypass our safety check. For example,
+  // suppose we extracted "lnk1" -> "." first and "lnk1/lnk2" -> ".." next
+  // or "dir/lnk1" -> ".." first and "dir/lnk1/lnk2" -> ".." next.
+  if (UpLevels>0 && LinkInPath(PrepSrcName))
+    return false;
+    
+  // We could check just prepared src name, but for extra safety
+  // we check both original (as from archive header) and prepared
+  // (after applying the destination path and -ep switches) names.
+
+  int AllowedDepth=CalcAllowedDepth(SrcName); // Original name depth.
+
+  // Remove the destination path from prepared name if any. We should not
+  // count the destination path depth, because the link target must point
+  // inside of this path, not outside of it.
+  size_t ExtrPathLength=wcslen(Cmd->ExtrPath);
+  if (ExtrPathLength>0 && wcsncmp(PrepSrcName,Cmd->ExtrPath,ExtrPathLength)==0)
+  {
+    PrepSrcName+=ExtrPathLength;
+    while (IsPathDiv(*PrepSrcName))
+      PrepSrcName++;
+  }
+  int PrepAllowedDepth=CalcAllowedDepth(PrepSrcName);
+
+  return AllowedDepth>=UpLevels && PrepAllowedDepth>=UpLevels;
+}
+
+
+bool ExtractSymlink(CommandData *Cmd,ComprDataIO &DataIO,Archive &Arc,const wchar *LinkName)
+{
+#if defined(SAVE_LINKS) && defined(_UNIX)
+  // For RAR 3.x archives we process links even in test mode to skip link data.
+  if (Arc.Format==RARFMT15)
+    return ExtractUnixLink30(Cmd,DataIO,Arc,LinkName);
+  if (Arc.Format==RARFMT50)
+    return ExtractUnixLink50(Cmd,LinkName,&Arc.FileHead);
+#elif defined _WIN_ALL
+  // RAR 5.0 archives store link information in file header, so there is
+  // no need to additionally test it if we do not create a file.
+  if (Arc.Format==RARFMT50)
+    return CreateReparsePoint(Cmd,LinkName,&Arc.FileHead);
+#endif
+  return false;
+}

reference/unrar/extinfo.hpp

@@ -0,0 +1,23 @@
+#ifndef _RAR_EXTINFO_
+#define _RAR_EXTINFO_
+
+bool IsRelativeSymlinkSafe(CommandData *Cmd,const wchar *SrcName,const wchar *PrepSrcName,const wchar *TargetName);
+bool ExtractSymlink(CommandData *Cmd,ComprDataIO &DataIO,Archive &Arc,const wchar *LinkName);
+#ifdef _UNIX
+void SetUnixOwner(Archive &Arc,const wchar *FileName);
+#endif
+
+bool ExtractHardlink(wchar *NameNew,wchar *NameExisting,size_t NameExistingSize);
+
+void GetStreamNameNTFS(Archive &Arc,wchar *StreamName,size_t MaxSize);
+
+#ifdef _WIN_ALL
+bool SetPrivilege(LPCTSTR PrivName);
+#endif
+
+void SetExtraInfo20(CommandData *Cmd,Archive &Arc,wchar *Name);
+void SetExtraInfo(CommandData *Cmd,Archive &Arc,wchar *Name);
+void SetFileHeaderExtra(CommandData *Cmd,Archive &Arc,wchar *Name);
+
+
+#endif

reference/unrar/extract.hpp

@@ -0,0 +1,62 @@
+#ifndef _RAR_EXTRACT_
+#define _RAR_EXTRACT_
+
+enum EXTRACT_ARC_CODE {EXTRACT_ARC_NEXT,EXTRACT_ARC_REPEAT};
+
+class CmdExtract
+{
+  private:
+    EXTRACT_ARC_CODE ExtractArchive();
+    bool ExtractFileCopy(File &New,wchar *ArcName,wchar *NameNew,wchar *NameExisting,size_t NameExistingSize);
+    void ExtrPrepareName(Archive &Arc,const wchar *ArcFileName,wchar *DestName,size_t DestSize);
+#ifdef RARDLL
+    bool ExtrDllGetPassword();
+#else
+    bool ExtrGetPassword(Archive &Arc,const wchar *ArcFileName);
+#endif
+#if defined(_WIN_ALL) && !defined(SFX_MODULE)
+    void ConvertDosPassword(Archive &Arc,SecPassword &DestPwd);
+#endif
+    void ExtrCreateDir(Archive &Arc,const wchar *ArcFileName);
+    bool ExtrCreateFile(Archive &Arc,File &CurFile);
+    bool CheckUnpVer(Archive &Arc,const wchar *ArcFileName);
+
+    RarTime StartTime; // time when extraction started
+
+    CommandData *Cmd;
+
+    ComprDataIO DataIO;
+    Unpack *Unp;
+    unsigned long TotalFileCount;
+
+    unsigned long FileCount;
+    unsigned long MatchedArgs;
+    bool FirstFile;
+    bool AllMatchesExact;
+    bool ReconstructDone;
+
+    // If any non-zero solid file was successfully unpacked before current.
+    // If true and if current encrypted file is broken, obviously
+    // the password is correct and we can report broken CRC without
+    // any wrong password hints.
+    bool AnySolidDataUnpackedWell;
+
+    wchar ArcName[NM];
+
+    bool PasswordAll;
+    bool PrevProcessed; // If previous file was successfully extracted or tested.
+    wchar DestFileName[NM];
+    bool PasswordCancelled;
+#if defined(_WIN_ALL) && !defined(SFX_MODULE) && !defined(SILENT)
+    bool Fat32,NotFat32;
+#endif
+  public:
+    CmdExtract(CommandData *Cmd);
+    ~CmdExtract();
+    void DoExtract();
+    void ExtractArchiveInit(Archive &Arc);
+    bool ExtractCurrentFile(Archive &Arc,size_t HeaderSize,bool &Repeat);
+    static void UnstoreFile(ComprDataIO &DataIO,int64 DestUnpSize);
+};
+
+#endif

reference/unrar/filcreat.cpp

@@ -0,0 +1,163 @@
+#include "rar.hpp"
+
+// If NewFile==NULL, we delete created file after user confirmation.
+// It is useful we we need to overwrite an existing folder or file,
+// but need user confirmation for that.
+bool FileCreate(RAROptions *Cmd,File *NewFile,wchar *Name,size_t MaxNameSize,
+                bool *UserReject,int64 FileSize,RarTime *FileTime,bool WriteOnly)
+{
+  if (UserReject!=NULL)
+    *UserReject=false;
+#ifdef _WIN_ALL
+  bool ShortNameChanged=false;
+#endif
+  while (FileExist(Name))
+  {
+#if defined(_WIN_ALL)
+    if (!ShortNameChanged)
+    {
+      // Avoid the infinite loop if UpdateExistingShortName returns
+      // the same name.
+      ShortNameChanged=true;
+
+      // Maybe our long name matches the short name of existing file.
+      // Let's check if we can change the short name.
+      if (UpdateExistingShortName(Name))
+        continue;
+    }
+    // Allow short name check again. It is necessary, because rename and
+    // autorename below can change the name, so we need to check it again.
+    ShortNameChanged=false;
+#endif
+    UIASKREP_RESULT Choice=uiAskReplaceEx(Cmd,Name,MaxNameSize,FileSize,FileTime,(NewFile==NULL ? UIASKREP_F_NORENAME:0));
+
+    if (Choice==UIASKREP_R_REPLACE)
+      break;
+    if (Choice==UIASKREP_R_SKIP)
+    {
+      if (UserReject!=NULL)
+        *UserReject=true;
+      return false;
+    }
+    if (Choice==UIASKREP_R_CANCEL)
+      ErrHandler.Exit(RARX_USERBREAK);
+  }
+
+  // Try to truncate the existing file first instead of delete,
+  // so we preserve existing file permissions such as NTFS permissions.
+  uint FileMode=WriteOnly ? FMF_WRITE|FMF_SHAREREAD:FMF_UPDATE|FMF_SHAREREAD;
+  if (NewFile!=NULL && NewFile->Create(Name,FileMode))
+    return true;
+
+  CreatePath(Name,true);
+  return NewFile!=NULL ? NewFile->Create(Name,FileMode):DelFile(Name);
+}
+
+
+bool GetAutoRenamedName(wchar *Name,size_t MaxNameSize)
+{
+  wchar NewName[NM];
+  size_t NameLength=wcslen(Name);
+  wchar *Ext=GetExt(Name);
+  if (Ext==NULL)
+    Ext=Name+NameLength;
+  for (uint FileVer=1;;FileVer++)
+  {
+    swprintf(NewName,ASIZE(NewName),L"%.*ls(%u)%ls",uint(Ext-Name),Name,FileVer,Ext);
+    if (!FileExist(NewName))
+    {
+      wcsncpyz(Name,NewName,MaxNameSize);
+      break;
+    }
+    if (FileVer>=1000000)
+      return false;
+  }
+  return true;
+}
+
+
+#if defined(_WIN_ALL)
+// If we find a file, which short name is equal to 'Name', we try to change
+// its short name, while preserving the long name. It helps when unpacking
+// an archived file, which long name is equal to short name of already
+// existing file. Otherwise we would overwrite the already existing file,
+// even though its long name does not match the name of unpacking file.
+bool UpdateExistingShortName(const wchar *Name)
+{
+  wchar LongPathName[NM];
+  DWORD Res=GetLongPathName(Name,LongPathName,ASIZE(LongPathName));
+  if (Res==0 || Res>=ASIZE(LongPathName))
+    return false;
+  wchar ShortPathName[NM];
+  Res=GetShortPathName(Name,ShortPathName,ASIZE(ShortPathName));
+  if (Res==0 || Res>=ASIZE(ShortPathName))
+    return false;
+  wchar *LongName=PointToName(LongPathName);
+  wchar *ShortName=PointToName(ShortPathName);
+
+  // We continue only if file has a short name, which does not match its
+  // long name, and this short name is equal to name of file which we need
+  // to create.
+  if (*ShortName==0 || wcsicomp(LongName,ShortName)==0 ||
+      wcsicomp(PointToName(Name),ShortName)!=0)
+    return false;
+
+  // Generate the temporary new name for existing file.
+  wchar NewName[NM];
+  *NewName=0;
+  for (int I=0;I<10000 && *NewName==0;I+=123)
+  {
+    // Here we copy the path part of file to create. We'll make the temporary
+    // file in the same folder.
+    wcsncpyz(NewName,Name,ASIZE(NewName));
+
+    // Here we set the random name part.
+    swprintf(PointToName(NewName),ASIZE(NewName),L"rtmp%d",I);
+    
+    // If such file is already exist, try next random name.
+    if (FileExist(NewName))
+      *NewName=0;
+  }
+
+  // If we could not generate the name not used by any other file, we return.
+  if (*NewName==0)
+    return false;
+  
+  // FastFind returns the name without path, but we need the fully qualified
+  // name for renaming, so we use the path from file to create and long name
+  // from existing file.
+  wchar FullName[NM];
+  wcsncpyz(FullName,Name,ASIZE(FullName));
+  SetName(FullName,LongName,ASIZE(FullName));
+  
+  // Rename the existing file to randomly generated name. Normally it changes
+  // the short name too.
+  if (!MoveFile(FullName,NewName))
+    return false;
+
+  // Now we need to create the temporary empty file with same name as
+  // short name of our already existing file. We do it to occupy its previous
+  // short name and not allow to use it again when renaming the file back to
+  // its original long name.
+  File KeepShortFile;
+  bool Created=false;
+  if (!FileExist(Name))
+    Created=KeepShortFile.Create(Name,FMF_WRITE|FMF_SHAREREAD);
+
+  // Now we rename the existing file from temporary name to original long name.
+  // Since its previous short name is occupied by another file, it should
+  // get another short name.
+  MoveFile(NewName,FullName);
+
+  if (Created)
+  {
+    // Delete the temporary zero length file occupying the short name,
+    KeepShortFile.Close();
+    KeepShortFile.Delete();
+  }
+  // We successfully changed the short name. Maybe sometimes we'll simplify
+  // this function by use of SetFileShortName Windows API call.
+  // But SetFileShortName is not available in older Windows.
+  return true;
+}
+#endif

reference/unrar/filcreat.hpp

@@ -0,0 +1,14 @@
+#ifndef _RAR_FILECREATE_
+#define _RAR_FILECREATE_
+
+bool FileCreate(RAROptions *Cmd,File *NewFile,wchar *Name,size_t MaxNameSize,
+                bool *UserReject,int64 FileSize=INT64NDF,
+                RarTime *FileTime=NULL,bool WriteOnly=false);
+
+bool GetAutoRenamedName(wchar *Name,size_t MaxNameSize);
+
+#if defined(_WIN_ALL)
+bool UpdateExistingShortName(const wchar *Name);
+#endif
+
+#endif

reference/unrar/file.cpp

@@ -0,0 +1,729 @@
+#include "rar.hpp"
+
+File::File()
+{
+  hFile=FILE_BAD_HANDLE;
+  *FileName=0;
+  NewFile=false;
+  LastWrite=false;
+  HandleType=FILE_HANDLENORMAL;
+  SkipClose=false;
+  IgnoreReadErrors=false;
+  ErrorType=FILE_SUCCESS;
+  OpenShared=false;
+  AllowDelete=true;
+  AllowExceptions=true;
+#ifdef _WIN_ALL
+  NoSequentialRead=false;
+  CreateMode=FMF_UNDEFINED;
+#endif
+}
+
+
+File::~File()
+{
+  if (hFile!=FILE_BAD_HANDLE && !SkipClose)
+    if (NewFile)
+      Delete();
+    else
+      Close();
+}
+
+
+void File::operator = (File &SrcFile)
+{
+  hFile=SrcFile.hFile;
+  NewFile=SrcFile.NewFile;
+  LastWrite=SrcFile.LastWrite;
+  HandleType=SrcFile.HandleType;
+  wcsncpyz(FileName,SrcFile.FileName,ASIZE(FileName));
+  SrcFile.SkipClose=true;
+}
+
+
+bool File::Open(const wchar *Name,uint Mode)
+{
+  ErrorType=FILE_SUCCESS;
+  FileHandle hNewFile;
+  bool OpenShared=File::OpenShared || (Mode & FMF_OPENSHARED)!=0;
+  bool UpdateMode=(Mode & FMF_UPDATE)!=0;
+  bool WriteMode=(Mode & FMF_WRITE)!=0;
+#ifdef _WIN_ALL
+  uint Access=WriteMode ? GENERIC_WRITE:GENERIC_READ;
+  if (UpdateMode)
+    Access|=GENERIC_WRITE;
+  uint ShareMode=(Mode & FMF_OPENEXCLUSIVE) ? 0 : FILE_SHARE_READ;
+  if (OpenShared)
+    ShareMode|=FILE_SHARE_WRITE;
+  uint Flags=NoSequentialRead ? 0:FILE_FLAG_SEQUENTIAL_SCAN;
+  hNewFile=CreateFile(Name,Access,ShareMode,NULL,OPEN_EXISTING,Flags,NULL);
+
+  DWORD LastError;
+  if (hNewFile==FILE_BAD_HANDLE)
+  {
+    LastError=GetLastError();
+
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+    {
+      hNewFile=CreateFile(LongName,Access,ShareMode,NULL,OPEN_EXISTING,Flags,NULL);
+
+      // For archive names longer than 260 characters first CreateFile
+      // (without \\?\) fails and sets LastError to 3 (access denied).
+      // We need the correct "file not found" error code to decide
+      // if we create a new archive or quit with "cannot create" error.
+      // So we need to check the error code after \\?\ CreateFile again,
+      // otherwise we'll fail to create new archives with long names.
+      // But we cannot simply assign the new code to LastError,
+      // because it would break "..\arcname.rar" relative names processing.
+      // First CreateFile returns the correct "file not found" code for such
+      // names, but "\\?\" CreateFile returns ERROR_INVALID_NAME treating
+      // dots as a directory name. So we check only for "file not found"
+      // error here and for other errors use the first CreateFile result.
+      if (GetLastError()==ERROR_FILE_NOT_FOUND)
+        LastError=ERROR_FILE_NOT_FOUND;
+    }
+  }
+  if (hNewFile==FILE_BAD_HANDLE && LastError==ERROR_FILE_NOT_FOUND)
+    ErrorType=FILE_NOTFOUND;
+
+#else
+  int flags=UpdateMode ? O_RDWR:(WriteMode ? O_WRONLY:O_RDONLY);
+#ifdef O_BINARY
+  flags|=O_BINARY;
+#if defined(_AIX) && defined(_LARGE_FILE_API)
+  flags|=O_LARGEFILE;
+#endif
+#endif
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+
+  int handle=open(NameA,flags);
+#ifdef LOCK_EX
+
+#ifdef _OSF_SOURCE
+  extern "C" int flock(int, int);
+#endif
+
+  if (!OpenShared && UpdateMode && handle>=0 && flock(handle,LOCK_EX|LOCK_NB)==-1)
+  {
+    close(handle);
+    return false;
+  }
+#endif
+  if (handle==-1)
+    hNewFile=FILE_BAD_HANDLE;
+  else
+  {
+#ifdef FILE_USE_OPEN
+    hNewFile=handle;
+#else
+    hNewFile=fdopen(handle,UpdateMode ? UPDATEBINARY:READBINARY);
+#endif
+  }
+  if (hNewFile==FILE_BAD_HANDLE && errno==ENOENT)
+    ErrorType=FILE_NOTFOUND;
+#endif
+  NewFile=false;
+  HandleType=FILE_HANDLENORMAL;
+  SkipClose=false;
+  bool Success=hNewFile!=FILE_BAD_HANDLE;
+  if (Success)
+  {
+    hFile=hNewFile;
+    wcsncpyz(FileName,Name,ASIZE(FileName));
+  }
+  return Success;
+}
+
+
+#if !defined(SFX_MODULE)
+void File::TOpen(const wchar *Name)
+{
+  if (!WOpen(Name))
+    ErrHandler.Exit(RARX_OPEN);
+}
+#endif
+
+
+bool File::WOpen(const wchar *Name)
+{
+  if (Open(Name))
+    return true;
+  ErrHandler.OpenErrorMsg(Name);
+  return false;
+}
+
+
+bool File::Create(const wchar *Name,uint Mode)
+{
+  // OpenIndiana based NAS and CIFS shares fail to set the file time if file
+  // was created in read+write mode and some data was written and not flushed
+  // before SetFileTime call. So we should use the write only mode if we plan
+  // SetFileTime call and do not need to read from file.
+  bool WriteMode=(Mode & FMF_WRITE)!=0;
+  bool ShareRead=(Mode & FMF_SHAREREAD)!=0 || File::OpenShared;
+#ifdef _WIN_ALL
+  CreateMode=Mode;
+  uint Access=WriteMode ? GENERIC_WRITE:GENERIC_READ|GENERIC_WRITE;
+  DWORD ShareMode=ShareRead ? FILE_SHARE_READ:0;
+
+  // Windows automatically removes dots and spaces in the end of file name,
+  // So we detect such names and process them with \\?\ prefix.
+  wchar *LastChar=PointToLastChar(Name);
+  bool Special=*LastChar=='.' || *LastChar==' ';
+  
+  if (Special && (Mode & FMF_STANDARDNAMES)==0)
+    hFile=FILE_BAD_HANDLE;
+  else
+    hFile=CreateFile(Name,Access,ShareMode,NULL,CREATE_ALWAYS,0,NULL);
+
+  if (hFile==FILE_BAD_HANDLE)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      hFile=CreateFile(LongName,Access,ShareMode,NULL,CREATE_ALWAYS,0,NULL);
+  }
+
+#else
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+#ifdef FILE_USE_OPEN
+  hFile=open(NameA,(O_CREAT|O_TRUNC) | (WriteMode ? O_WRONLY : O_RDWR),0666);
+#else
+  hFile=fopen(NameA,WriteMode ? WRITEBINARY:CREATEBINARY);
+#endif
+#endif
+  NewFile=true;
+  HandleType=FILE_HANDLENORMAL;
+  SkipClose=false;
+  wcsncpyz(FileName,Name,ASIZE(FileName));
+  return hFile!=FILE_BAD_HANDLE;
+}
+
+
+#if !defined(SFX_MODULE)
+void File::TCreate(const wchar *Name,uint Mode)
+{
+  if (!WCreate(Name,Mode))
+    ErrHandler.Exit(RARX_FATAL);
+}
+#endif
+
+
+bool File::WCreate(const wchar *Name,uint Mode)
+{
+  if (Create(Name,Mode))
+    return true;
+  ErrHandler.CreateErrorMsg(Name);
+  return false;
+}
+
+
+bool File::Close()
+{
+  bool Success=true;
+
+  if (hFile!=FILE_BAD_HANDLE)
+  {
+    if (!SkipClose)
+    {
+#ifdef _WIN_ALL
+      // We use the standard system handle for stdout in Windows
+      // and it must not  be closed here.
+      if (HandleType==FILE_HANDLENORMAL)
+        Success=CloseHandle(hFile)==TRUE;
+#else
+#ifdef FILE_USE_OPEN
+      Success=close(hFile)!=-1;
+#else
+      Success=fclose(hFile)!=EOF;
+#endif
+#endif
+    }
+    hFile=FILE_BAD_HANDLE;
+  }
+  HandleType=FILE_HANDLENORMAL;
+  if (!Success && AllowExceptions)
+    ErrHandler.CloseError(FileName);
+  return Success;
+}
+
+
+bool File::Delete()
+{
+  if (HandleType!=FILE_HANDLENORMAL)
+    return false;
+  if (hFile!=FILE_BAD_HANDLE)
+    Close();
+  if (!AllowDelete)
+    return false;
+  return DelFile(FileName);
+}
+
+
+bool File::Rename(const wchar *NewName)
+{
+  // No need to rename if names are already same.
+  bool Success=wcscmp(FileName,NewName)==0;
+
+  if (!Success)
+    Success=RenameFile(FileName,NewName);
+
+  if (Success)
+    wcscpy(FileName,NewName);
+
+  return Success;
+}
+
+
+bool File::Write(const void *Data,size_t Size)
+{
+  if (Size==0)
+    return true;
+  if (HandleType==FILE_HANDLESTD)
+  {
+#ifdef _WIN_ALL
+    hFile=GetStdHandle(STD_OUTPUT_HANDLE);
+#else
+    // Cannot use the standard stdout here, because it already has wide orientation.
+    if (hFile==FILE_BAD_HANDLE)
+    {
+#ifdef FILE_USE_OPEN
+      hFile=dup(STDOUT_FILENO); // Open new stdout stream.
+#else
+      hFile=fdopen(dup(STDOUT_FILENO),"w"); // Open new stdout stream.
+#endif
+    }
+#endif
+  }
+  bool Success;
+  while (1)
+  {
+    Success=false;
+#ifdef _WIN_ALL
+    DWORD Written=0;
+    if (HandleType!=FILE_HANDLENORMAL)
+    {
+      // writing to stdout can fail in old Windows if data block is too large
+      const size_t MaxSize=0x4000;
+      for (size_t I=0;I<Size;I+=MaxSize)
+      {
+        Success=WriteFile(hFile,(byte *)Data+I,(DWORD)Min(Size-I,MaxSize),&Written,NULL)==TRUE;
+        if (!Success)
+          break;
+      }
+    }
+    else
+      Success=WriteFile(hFile,Data,(DWORD)Size,&Written,NULL)==TRUE;
+#else
+#ifdef FILE_USE_OPEN
+    ssize_t Written=write(hFile,Data,Size);
+    Success=Written==Size;
+#else
+    int Written=fwrite(Data,1,Size,hFile);
+    Success=Written==Size && !ferror(hFile);
+#endif
+#endif
+    if (!Success && AllowExceptions && HandleType==FILE_HANDLENORMAL)
+    {
+#if defined(_WIN_ALL) && !defined(SFX_MODULE) && !defined(RARDLL)
+      int ErrCode=GetLastError();
+      int64 FilePos=Tell();
+      uint64 FreeSize=GetFreeDisk(FileName);
+      SetLastError(ErrCode);
+      if (FreeSize>Size && FilePos-Size<=0xffffffff && FilePos+Size>0xffffffff)
+        ErrHandler.WriteErrorFAT(FileName);
+#endif
+      if (ErrHandler.AskRepeatWrite(FileName,false))
+      {
+#if !defined(_WIN_ALL) && !defined(FILE_USE_OPEN)
+        clearerr(hFile);
+#endif
+        if (Written<Size && Written>0)
+          Seek(Tell()-Written,SEEK_SET);
+        continue;
+      }
+      ErrHandler.WriteError(NULL,FileName);
+    }
+    break;
+  }
+  LastWrite=true;
+  return Success; // It can return false only if AllowExceptions is disabled.
+}
+
+
+int File::Read(void *Data,size_t Size)
+{
+  int64 FilePos=0; // Initialized only to suppress some compilers warning.
+
+  if (IgnoreReadErrors)
+    FilePos=Tell();
+  int ReadSize;
+  while (true)
+  {
+    ReadSize=DirectRead(Data,Size);
+    if (ReadSize==-1)
+    {
+      ErrorType=FILE_READERROR;
+      if (AllowExceptions)
+        if (IgnoreReadErrors)
+        {
+          ReadSize=0;
+          for (size_t I=0;I<Size;I+=512)
+          {
+            Seek(FilePos+I,SEEK_SET);
+            size_t SizeToRead=Min(Size-I,512);
+            int ReadCode=DirectRead(Data,SizeToRead);
+            ReadSize+=(ReadCode==-1) ? 512:ReadCode;
+          }
+        }
+        else
+        {
+          if (HandleType==FILE_HANDLENORMAL && ErrHandler.AskRepeatRead(FileName))
+            continue;
+          ErrHandler.ReadError(FileName);
+        }
+    }
+    break;
+  }
+  return ReadSize;
+}
+
+
+// Returns -1 in case of error.
+int File::DirectRead(void *Data,size_t Size)
+{
+#ifdef _WIN_ALL
+  const size_t MaxDeviceRead=20000;
+  const size_t MaxLockedRead=32768;
+#endif
+  if (HandleType==FILE_HANDLESTD)
+  {
+#ifdef _WIN_ALL
+//    if (Size>MaxDeviceRead)
+//      Size=MaxDeviceRead;
+    hFile=GetStdHandle(STD_INPUT_HANDLE);
+#else
+#ifdef FILE_USE_OPEN
+    hFile=STDIN_FILENO;
+#else
+    hFile=stdin;
+#endif
+#endif
+  }
+#ifdef _WIN_ALL
+  // For pipes like 'type file.txt | rar -si arcname' ReadFile may return
+  // data in small ~4KB blocks. It may slightly reduce the compression ratio.
+  DWORD Read;
+  if (!ReadFile(hFile,Data,(DWORD)Size,&Read,NULL))
+  {
+    if (IsDevice() && Size>MaxDeviceRead)
+      return DirectRead(Data,MaxDeviceRead);
+    if (HandleType==FILE_HANDLESTD && GetLastError()==ERROR_BROKEN_PIPE)
+      return 0;
+
+    // We had a bug report about failure to archive 1C database lock file
+    // 1Cv8tmp.1CL, which is a zero length file with a region above 200 KB
+    // permanently locked. If our first read request uses too large buffer
+    // and if we are in -dh mode, so we were able to open the file,
+    // we'll fail with "Read error". So now we use try a smaller buffer size
+    // in case of lock error.
+    if (HandleType==FILE_HANDLENORMAL && Size>MaxLockedRead &&
+        GetLastError()==ERROR_LOCK_VIOLATION)
+      return DirectRead(Data,MaxLockedRead);
+
+    return -1;
+  }
+  return Read;
+#else
+#ifdef FILE_USE_OPEN
+  ssize_t ReadSize=read(hFile,Data,Size);
+  if (ReadSize==-1)
+    return -1;
+  return (int)ReadSize;
+#else
+  if (LastWrite)
+  {
+    fflush(hFile);
+    LastWrite=false;
+  }
+  clearerr(hFile);
+  size_t ReadSize=fread(Data,1,Size,hFile);
+  if (ferror(hFile))
+    return -1;
+  return (int)ReadSize;
+#endif
+#endif
+}
+
+
+void File::Seek(int64 Offset,int Method)
+{
+  if (!RawSeek(Offset,Method) && AllowExceptions)
+    ErrHandler.SeekError(FileName);
+}
+
+
+bool File::RawSeek(int64 Offset,int Method)
+{
+  if (hFile==FILE_BAD_HANDLE)
+    return true;
+  if (Offset<0 && Method!=SEEK_SET)
+  {
+    Offset=(Method==SEEK_CUR ? Tell():FileLength())+Offset;
+    Method=SEEK_SET;
+  }
+#ifdef _WIN_ALL
+  LONG HighDist=(LONG)(Offset>>32);
+  if (SetFilePointer(hFile,(LONG)Offset,&HighDist,Method)==0xffffffff &&
+      GetLastError()!=NO_ERROR)
+    return false;
+#else
+  LastWrite=false;
+#ifdef FILE_USE_OPEN
+  if (lseek(hFile,(off_t)Offset,Method)==-1)
+    return false;
+#elif defined(_LARGEFILE_SOURCE) && !defined(_OSF_SOURCE) && !defined(__VMS)
+  if (fseeko(hFile,Offset,Method)!=0)
+    return false;
+#else
+  if (fseek(hFile,(long)Offset,Method)!=0)
+    return false;
+#endif
+#endif
+  return true;
+}
+
+
+int64 File::Tell()
+{
+  if (hFile==FILE_BAD_HANDLE)
+    if (AllowExceptions)
+      ErrHandler.SeekError(FileName);
+    else
+      return -1;
+#ifdef _WIN_ALL
+  LONG HighDist=0;
+  uint LowDist=SetFilePointer(hFile,0,&HighDist,FILE_CURRENT);
+  if (LowDist==0xffffffff && GetLastError()!=NO_ERROR)
+    if (AllowExceptions)
+      ErrHandler.SeekError(FileName);
+    else
+      return -1;
+  return INT32TO64(HighDist,LowDist);
+#else
+#ifdef FILE_USE_OPEN
+  return lseek(hFile,0,SEEK_CUR);
+#elif defined(_LARGEFILE_SOURCE) && !defined(_OSF_SOURCE)
+  return ftello(hFile);
+#else
+  return ftell(hFile);
+#endif
+#endif
+}
+
+
+void File::Prealloc(int64 Size)
+{
+#ifdef _WIN_ALL
+  if (RawSeek(Size,SEEK_SET))
+  {
+    Truncate();
+    Seek(0,SEEK_SET);
+  }
+#endif
+
+#if defined(_UNIX) && defined(USE_FALLOCATE)
+  // fallocate is rather new call. Only latest kernels support it.
+  // So we are not using it by default yet.
+  int fd = GetFD();
+  if (fd >= 0)
+    fallocate(fd, 0, 0, Size);
+#endif
+}
+
+
+byte File::GetByte()
+{
+  byte Byte=0;
+  Read(&Byte,1);
+  return Byte;
+}
+
+
+void File::PutByte(byte Byte)
+{
+  Write(&Byte,1);
+}
+
+
+bool File::Truncate()
+{
+#ifdef _WIN_ALL
+  return SetEndOfFile(hFile)==TRUE;
+#else
+  return ftruncate(GetFD(),(off_t)Tell())==0;
+#endif
+}
+
+
+void File::Flush()
+{
+#ifdef _WIN_ALL
+  FlushFileBuffers(hFile);
+#else
+#ifndef FILE_USE_OPEN
+  fflush(hFile);
+#endif
+  fsync(GetFD());
+#endif
+}
+
+
+void File::SetOpenFileTime(RarTime *ftm,RarTime *ftc,RarTime *fta)
+{
+#ifdef _WIN_ALL
+  // Workaround for OpenIndiana NAS time bug. If we cannot create a file
+  // in write only mode, we need to flush the write buffer before calling
+  // SetFileTime or file time will not be changed.
+  if (CreateMode!=FMF_UNDEFINED && (CreateMode & FMF_WRITE)==0)
+    FlushFileBuffers(hFile);
+
+  bool sm=ftm!=NULL && ftm->IsSet();
+  bool sc=ftc!=NULL && ftc->IsSet();
+  bool sa=fta!=NULL && fta->IsSet();
+  FILETIME fm,fc,fa;
+  if (sm)
+    ftm->GetWinFT(&fm);
+  if (sc)
+    ftc->GetWinFT(&fc);
+  if (sa)
+    fta->GetWinFT(&fa);
+  SetFileTime(hFile,sc ? &fc:NULL,sa ? &fa:NULL,sm ? &fm:NULL);
+#endif
+}
+
+
+void File::SetCloseFileTime(RarTime *ftm,RarTime *fta)
+{
+// Android APP_PLATFORM := android-14 does not support futimens and futimes.
+// Newer platforms support futimens, but fail on Android 4.2.
+// We have to use utime for Android.
+// Also we noticed futimens fail to set timestamps on NTFS partition
+// mounted to virtual Linux x86 machine, but utimensat worked correctly.
+// So we set timestamps for already closed files in Unix.
+#ifdef _UNIX
+  SetCloseFileTimeByName(FileName,ftm,fta);
+#endif
+}
+
+
+void File::SetCloseFileTimeByName(const wchar *Name,RarTime *ftm,RarTime *fta)
+{
+#ifdef _UNIX
+  bool setm=ftm!=NULL && ftm->IsSet();
+  bool seta=fta!=NULL && fta->IsSet();
+  if (setm || seta)
+  {
+    char NameA[NM];
+    WideToChar(Name,NameA,ASIZE(NameA));
+
+#ifdef UNIX_TIME_NS
+    timespec times[2];
+    times[0].tv_sec=seta ? fta->GetUnix() : 0;
+    times[0].tv_nsec=seta ? long(fta->GetUnixNS()%1000000000) : UTIME_NOW;
+    times[1].tv_sec=setm ? ftm->GetUnix() : 0;
+    times[1].tv_nsec=setm ? long(ftm->GetUnixNS()%1000000000) : UTIME_NOW;
+    utimensat(AT_FDCWD,NameA,times,0);
+#else
+    utimbuf ut;
+    if (setm)
+      ut.modtime=ftm->GetUnix();
+    else
+      ut.modtime=fta->GetUnix(); // Need to set something, cannot left it 0.
+    if (seta)
+      ut.actime=fta->GetUnix();
+    else
+      ut.actime=ut.modtime; // Need to set something, cannot left it 0.
+    utime(NameA,&ut);
+#endif
+  }
+#endif
+}
+
+
+void File::GetOpenFileTime(RarTime *ft)
+{
+#ifdef _WIN_ALL
+  FILETIME FileTime;
+  GetFileTime(hFile,NULL,NULL,&FileTime);
+  ft->SetWinFT(&FileTime);
+#endif
+#if defined(_UNIX) || defined(_EMX)
+  struct stat st;
+  fstat(GetFD(),&st);
+  ft->SetUnix(st.st_mtime);
+#endif
+}
+
+
+int64 File::FileLength()
+{
+  SaveFilePos SavePos(*this);
+  Seek(0,SEEK_END);
+  return Tell();
+}
+
+
+bool File::IsDevice()
+{
+  if (hFile==FILE_BAD_HANDLE)
+    return false;
+#ifdef _WIN_ALL
+  uint Type=GetFileType(hFile);
+  return Type==FILE_TYPE_CHAR || Type==FILE_TYPE_PIPE;
+#else
+  return isatty(GetFD());
+#endif
+}
+
+
+#ifndef SFX_MODULE
+int64 File::Copy(File &Dest,int64 Length)
+{
+  Array<char> Buffer(0x40000);
+  int64 CopySize=0;
+  bool CopyAll=(Length==INT64NDF);
+
+  while (CopyAll || Length>0)
+  {
+    Wait();
+    size_t SizeToRead=(!CopyAll && Length<(int64)Buffer.Size()) ? (size_t)Length:Buffer.Size();
+    char *Buf=&Buffer[0];
+    int ReadSize=Read(Buf,SizeToRead);
+    if (ReadSize==0)
+      break;
+    size_t WriteSize=ReadSize;
+#ifdef _WIN_ALL
+    // For FAT32 USB flash drives in Windows if first write is 4 KB or more,
+    // write caching is disabled and "write through" is enabled, resulting
+    // in bad performance, especially for many small files. It happens when
+    // we create SFX archive on USB drive, because SFX module is written first.
+    // So we split the first write to small 1 KB followed by rest of data.
+    if (CopySize==0 && WriteSize>=4096)
+    {
+      const size_t FirstWrite=1024;
+      Dest.Write(Buf,FirstWrite);
+      Buf+=FirstWrite;
+      WriteSize-=FirstWrite;
+    }
+#endif
+    Dest.Write(Buf,WriteSize);
+    CopySize+=ReadSize;
+    if (!CopyAll)
+      Length-=ReadSize;
+  }
+  return CopySize;
+}
+#endif

reference/unrar/file.hpp

@@ -0,0 +1,126 @@
+#ifndef _RAR_FILE_
+#define _RAR_FILE_
+
+#define FILE_USE_OPEN
+
+#ifdef _WIN_ALL
+  typedef HANDLE FileHandle;
+  #define FILE_BAD_HANDLE INVALID_HANDLE_VALUE
+#elif defined(FILE_USE_OPEN)
+  typedef off_t FileHandle;
+  #define FILE_BAD_HANDLE -1
+#else
+  typedef FILE* FileHandle;
+  #define FILE_BAD_HANDLE NULL
+#endif
+
+class RAROptions;
+
+enum FILE_HANDLETYPE {FILE_HANDLENORMAL,FILE_HANDLESTD};
+
+enum FILE_ERRORTYPE {FILE_SUCCESS,FILE_NOTFOUND,FILE_READERROR};
+
+enum FILE_MODE_FLAGS {
+  // Request read only access to file. Default for Open.
+  FMF_READ=0,
+
+  // Request both read and write access to file. Default for Create.
+  FMF_UPDATE=1,
+
+  // Request write only access to file.
+  FMF_WRITE=2,
+
+  // Open files which are already opened for write by other programs.
+  FMF_OPENSHARED=4,
+
+  // Open files only if no other program is opened it even in shared mode.
+  FMF_OPENEXCLUSIVE=8,
+
+  // Provide read access to created file for other programs.
+  FMF_SHAREREAD=16,
+
+  // Use standard NTFS names without trailing dots and spaces.
+  FMF_STANDARDNAMES=32,
+
+  // Mode flags are not defined yet.
+  FMF_UNDEFINED=256
+};
+
+
+class File
+{
+  private:
+    FileHandle hFile;
+    bool LastWrite;
+    FILE_HANDLETYPE HandleType;
+    bool SkipClose;
+    bool IgnoreReadErrors;
+    bool NewFile;
+    bool AllowDelete;
+    bool AllowExceptions;
+#ifdef _WIN_ALL
+    bool NoSequentialRead;
+    uint CreateMode;
+#endif
+  protected:
+    bool OpenShared; // Set by 'Archive' class.
+  public:
+    wchar FileName[NM];
+
+    FILE_ERRORTYPE ErrorType;
+  public:
+    File();
+    virtual ~File();
+    void operator = (File &SrcFile);
+    virtual bool Open(const wchar *Name,uint Mode=FMF_READ);
+    void TOpen(const wchar *Name);
+    bool WOpen(const wchar *Name);
+    bool Create(const wchar *Name,uint Mode=FMF_UPDATE|FMF_SHAREREAD);
+    void TCreate(const wchar *Name,uint Mode=FMF_UPDATE|FMF_SHAREREAD);
+    bool WCreate(const wchar *Name,uint Mode=FMF_UPDATE|FMF_SHAREREAD);
+    bool Close();
+    bool Delete();
+    bool Rename(const wchar *NewName);
+    bool Write(const void *Data,size_t Size);
+    virtual int Read(void *Data,size_t Size);
+    int DirectRead(void *Data,size_t Size);
+    virtual void Seek(int64 Offset,int Method);
+    bool RawSeek(int64 Offset,int Method);
+    virtual int64 Tell();
+    void Prealloc(int64 Size);
+    byte GetByte();
+    void PutByte(byte Byte);
+    bool Truncate();
+    void Flush();
+    void SetOpenFileTime(RarTime *ftm,RarTime *ftc=NULL,RarTime *fta=NULL);
+    void SetCloseFileTime(RarTime *ftm,RarTime *fta=NULL);
+    static void SetCloseFileTimeByName(const wchar *Name,RarTime *ftm,RarTime *fta);
+    void GetOpenFileTime(RarTime *ft);
+    bool IsOpened() {return hFile!=FILE_BAD_HANDLE;};
+    int64 FileLength();
+    void SetHandleType(FILE_HANDLETYPE Type) {HandleType=Type;}
+    FILE_HANDLETYPE GetHandleType() {return HandleType;}
+    bool IsDevice();
+    static bool RemoveCreated();
+    FileHandle GetHandle() {return hFile;}
+    void SetHandle(FileHandle Handle) {Close();hFile=Handle;}
+    void SetIgnoreReadErrors(bool Mode) {IgnoreReadErrors=Mode;}
+    int64 Copy(File &Dest,int64 Length=INT64NDF);
+    void SetAllowDelete(bool Allow) {AllowDelete=Allow;}
+    void SetExceptions(bool Allow) {AllowExceptions=Allow;}
+#ifdef _WIN_ALL
+    void RemoveSequentialFlag() {NoSequentialRead=true;}
+#endif
+#ifdef _UNIX
+    int GetFD()
+    {
+#ifdef FILE_USE_OPEN
+      return hFile;
+#else
+      return fileno(hFile);
+#endif
+    }
+#endif
+};
+
+#endif

reference/unrar/filefn.cpp

@@ -0,0 +1,510 @@
+#include "rar.hpp"
+
+MKDIR_CODE MakeDir(const wchar *Name,bool SetAttr,uint Attr)
+{
+#ifdef _WIN_ALL
+  // Windows automatically removes dots and spaces in the end of directory
+  // name. So we detect such names and process them with \\?\ prefix.
+  wchar *LastChar=PointToLastChar(Name);
+  bool Special=*LastChar=='.' || *LastChar==' ';
+  BOOL RetCode=Special ? FALSE : CreateDirectory(Name,NULL);
+  if (RetCode==0 && !FileExist(Name))
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      RetCode=CreateDirectory(LongName,NULL);
+  }
+  if (RetCode!=0) // Non-zero return code means success for CreateDirectory.
+  {
+    if (SetAttr)
+      SetFileAttr(Name,Attr);
+    return MKDIR_SUCCESS;
+  }
+  int ErrCode=GetLastError();
+  if (ErrCode==ERROR_FILE_NOT_FOUND || ErrCode==ERROR_PATH_NOT_FOUND)
+    return MKDIR_BADPATH;
+  return MKDIR_ERROR;
+#elif defined(_UNIX)
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+  mode_t uattr=SetAttr ? (mode_t)Attr:0777;
+  int ErrCode=mkdir(NameA,uattr);
+  if (ErrCode==-1)
+    return errno==ENOENT ? MKDIR_BADPATH:MKDIR_ERROR;
+  return MKDIR_SUCCESS;
+#else
+  return MKDIR_ERROR;
+#endif
+}
+
+
+bool CreatePath(const wchar *Path,bool SkipLastName)
+{
+  if (Path==NULL || *Path==0)
+    return false;
+
+#if defined(_WIN_ALL) || defined(_EMX)
+  uint DirAttr=0;
+#else
+  uint DirAttr=0777;
+#endif
+  
+  bool Success=true;
+
+  for (const wchar *s=Path;*s!=0;s++)
+  {
+    wchar DirName[NM];
+    if (s-Path>=ASIZE(DirName))
+      break;
+
+    // Process all kinds of path separators, so user can enter Unix style
+    // path in Windows or Windows in Unix. s>Path check avoids attempting
+    // creating an empty directory for paths starting from path separator.
+    if (IsPathDiv(*s) && s>Path)
+    {
+#ifdef _WIN_ALL
+      // We must not attempt to create "D:" directory, because first
+      // CreateDirectory will fail, so we'll use \\?\D:, which forces Wine
+      // to create "D:" directory.
+      if (s==Path+2 && Path[1]==':')
+        continue;
+#endif
+      wcsncpy(DirName,Path,s-Path);
+      DirName[s-Path]=0;
+
+      Success=MakeDir(DirName,true,DirAttr)==MKDIR_SUCCESS;
+      if (Success)
+      {
+        mprintf(St(MCreatDir),DirName);
+        mprintf(L" %s",St(MOk));
+      }
+    }
+  }
+  if (!SkipLastName && !IsPathDiv(*PointToLastChar(Path)))
+    Success=MakeDir(Path,true,DirAttr)==MKDIR_SUCCESS;
+  return Success;
+}
+
+
+void SetDirTime(const wchar *Name,RarTime *ftm,RarTime *ftc,RarTime *fta)
+{
+#if defined(_WIN_ALL)
+  bool sm=ftm!=NULL && ftm->IsSet();
+  bool sc=ftc!=NULL && ftc->IsSet();
+  bool sa=fta!=NULL && fta->IsSet();
+
+  uint DirAttr=GetFileAttr(Name);
+  bool ResetAttr=(DirAttr!=0xffffffff && (DirAttr & FILE_ATTRIBUTE_READONLY)!=0);
+  if (ResetAttr)
+    SetFileAttr(Name,0);
+
+  HANDLE hFile=CreateFile(Name,GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,
+                          NULL,OPEN_EXISTING,FILE_FLAG_BACKUP_SEMANTICS,NULL);
+  if (hFile==INVALID_HANDLE_VALUE)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      hFile=CreateFile(LongName,GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,
+                       NULL,OPEN_EXISTING,FILE_FLAG_BACKUP_SEMANTICS,NULL);
+  }
+
+  if (hFile==INVALID_HANDLE_VALUE)
+    return;
+  FILETIME fm,fc,fa;
+  if (sm)
+    ftm->GetWinFT(&fm);
+  if (sc)
+    ftc->GetWinFT(&fc);
+  if (sa)
+    fta->GetWinFT(&fa);
+  SetFileTime(hFile,sc ? &fc:NULL,sa ? &fa:NULL,sm ? &fm:NULL);
+  CloseHandle(hFile);
+  if (ResetAttr)
+    SetFileAttr(Name,DirAttr);
+#endif
+#if defined(_UNIX) || defined(_EMX)
+  File::SetCloseFileTimeByName(Name,ftm,fta);
+#endif
+}
+
+
+bool IsRemovable(const wchar *Name)
+{
+#if defined(_WIN_ALL)
+  wchar Root[NM];
+  GetPathRoot(Name,Root,ASIZE(Root));
+  int Type=GetDriveType(*Root!=0 ? Root:NULL);
+  return Type==DRIVE_REMOVABLE || Type==DRIVE_CDROM;
+#else
+  return false;
+#endif
+}
+
+
+#ifndef SFX_MODULE
+int64 GetFreeDisk(const wchar *Name)
+{
+#ifdef _WIN_ALL
+  wchar Root[NM];
+  GetFilePath(Name,Root,ASIZE(Root));
+
+  ULARGE_INTEGER uiTotalSize,uiTotalFree,uiUserFree;
+  uiUserFree.u.LowPart=uiUserFree.u.HighPart=0;
+  if (GetDiskFreeSpaceEx(*Root!=0 ? Root:NULL,&uiUserFree,&uiTotalSize,&uiTotalFree) &&
+      uiUserFree.u.HighPart<=uiTotalFree.u.HighPart)
+    return INT32TO64(uiUserFree.u.HighPart,uiUserFree.u.LowPart);
+  return 0;
+#elif defined(_UNIX)
+  wchar Root[NM];
+  GetFilePath(Name,Root,ASIZE(Root));
+  char RootA[NM];
+  WideToChar(Root,RootA,ASIZE(RootA));
+  struct statvfs sfs;
+  if (statvfs(*RootA!=0 ? RootA:".",&sfs)!=0)
+    return 0;
+  int64 FreeSize=sfs.f_bsize;
+  FreeSize=FreeSize*sfs.f_bavail;
+  return FreeSize;
+#else
+  return 0;
+#endif
+}
+#endif
+
+
+#if defined(_WIN_ALL) && !defined(SFX_MODULE) && !defined(SILENT)
+// Return 'true' for FAT and FAT32, so we can adjust the maximum supported
+// file size to 4 GB for these file systems.
+bool IsFAT(const wchar *Name)
+{
+  wchar Root[NM];
+  GetPathRoot(Name,Root,ASIZE(Root));
+  wchar FileSystem[MAX_PATH+1];
+  if (GetVolumeInformation(Root,NULL,0,NULL,NULL,NULL,FileSystem,ASIZE(FileSystem)))
+    return wcscmp(FileSystem,L"FAT")==0 || wcscmp(FileSystem,L"FAT32")==0;
+  return false;
+}
+#endif
+
+
+bool FileExist(const wchar *Name)
+{
+#ifdef _WIN_ALL
+  return GetFileAttr(Name)!=0xffffffff;
+#elif defined(ENABLE_ACCESS)
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+  return access(NameA,0)==0;
+#else
+  FindData FD;
+  return FindFile::FastFind(Name,&FD);
+#endif
+}
+ 
+
+bool WildFileExist(const wchar *Name)
+{
+  if (IsWildcard(Name))
+  {
+    FindFile Find;
+    Find.SetMask(Name);
+    FindData fd;
+    return Find.Next(&fd);
+  }
+  return FileExist(Name);
+}
+
+
+bool IsDir(uint Attr)
+{
+#ifdef _WIN_ALL
+  return Attr!=0xffffffff && (Attr & FILE_ATTRIBUTE_DIRECTORY)!=0;
+#endif
+#if defined(_UNIX)
+  return (Attr & 0xF000)==0x4000;
+#endif
+}
+
+
+bool IsUnreadable(uint Attr)
+{
+#if defined(_UNIX) && defined(S_ISFIFO) && defined(S_ISSOCK) && defined(S_ISCHR)
+  return S_ISFIFO(Attr) || S_ISSOCK(Attr) || S_ISCHR(Attr);
+#endif
+  return false;
+}
+
+
+bool IsLink(uint Attr)
+{
+#ifdef _UNIX
+  return (Attr & 0xF000)==0xA000;
+#elif defined(_WIN_ALL)
+  return (Attr & FILE_ATTRIBUTE_REPARSE_POINT)!=0;
+#else
+  return false;
+#endif
+}
+
+
+
+
+
+
+bool IsDeleteAllowed(uint FileAttr)
+{
+#ifdef _WIN_ALL
+  return (FileAttr & (FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_SYSTEM|FILE_ATTRIBUTE_HIDDEN))==0;
+#else
+  return (FileAttr & (S_IRUSR|S_IWUSR))==(S_IRUSR|S_IWUSR);
+#endif
+}
+
+
+void PrepareToDelete(const wchar *Name)
+{
+#if defined(_WIN_ALL) || defined(_EMX)
+  SetFileAttr(Name,0);
+#endif
+#ifdef _UNIX
+  if (Name!=NULL)
+  {
+    char NameA[NM];
+    WideToChar(Name,NameA,ASIZE(NameA));
+    chmod(NameA,S_IRUSR|S_IWUSR|S_IXUSR);
+  }
+#endif
+}
+
+
+uint GetFileAttr(const wchar *Name)
+{
+#ifdef _WIN_ALL
+  DWORD Attr=GetFileAttributes(Name);
+  if (Attr==0xffffffff)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      Attr=GetFileAttributes(LongName);
+  }
+  return Attr;
+#else
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+  struct stat st;
+  if (stat(NameA,&st)!=0)
+    return 0;
+  return st.st_mode;
+#endif
+}
+
+
+bool SetFileAttr(const wchar *Name,uint Attr)
+{
+#ifdef _WIN_ALL
+  bool Success=SetFileAttributes(Name,Attr)!=0;
+  if (!Success)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      Success=SetFileAttributes(LongName,Attr)!=0;
+  }
+  return Success;
+#elif defined(_UNIX)
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+  return chmod(NameA,(mode_t)Attr)==0;
+#else
+  return false;
+#endif
+}
+
+
+#if 0
+wchar *MkTemp(wchar *Name,size_t MaxSize)
+{
+  size_t Length=wcslen(Name);
+
+  RarTime CurTime;
+  CurTime.SetCurrentTime();
+
+  // We cannot use CurTime.GetWin() as is, because its lowest bits can
+  // have low informational value, like being a zero or few fixed numbers.
+  uint Random=(uint)(CurTime.GetWin()/100000);
+
+  // Using PID we guarantee that different RAR copies use different temp names
+  // even if started in exactly the same time.
+  uint PID=0;
+#ifdef _WIN_ALL
+  PID=(uint)GetCurrentProcessId();
+#elif defined(_UNIX)
+  PID=(uint)getpid();
+#endif
+
+  for (uint Attempt=0;;Attempt++)
+  {
+    uint Ext=Random%50000+Attempt;
+    wchar RndText[50];
+    swprintf(RndText,ASIZE(RndText),L"%u.%03u",PID,Ext);
+    if (Length+wcslen(RndText)>=MaxSize || Attempt==1000)
+      return NULL;
+    wcscpy(Name+Length,RndText);
+    if (!FileExist(Name))
+      break;
+  }
+  return Name;
+}
+#endif
+
+
+#if !defined(SFX_MODULE)
+void CalcFileSum(File *SrcFile,uint *CRC32,byte *Blake2,uint Threads,int64 Size,uint Flags)
+{
+  SaveFilePos SavePos(*SrcFile);
+#ifndef SILENT
+  int64 FileLength=Size==INT64NDF ? SrcFile->FileLength() : Size;
+#endif
+
+  if ((Flags & (CALCFSUM_SHOWTEXT|CALCFSUM_SHOWPERCENT))!=0)
+    uiMsg(UIEVENT_FILESUMSTART);
+
+  if ((Flags & CALCFSUM_CURPOS)==0)
+    SrcFile->Seek(0,SEEK_SET);
+
+  const size_t BufSize=0x100000;
+  Array<byte> Data(BufSize);
+
+
+  DataHash HashCRC,HashBlake2;
+  HashCRC.Init(HASH_CRC32,Threads);
+  HashBlake2.Init(HASH_BLAKE2,Threads);
+
+  int64 BlockCount=0;
+  int64 TotalRead=0;
+  while (true)
+  {
+    size_t SizeToRead;
+    if (Size==INT64NDF)   // If we process the entire file.
+      SizeToRead=BufSize; // Then always attempt to read the entire buffer.
+    else
+      SizeToRead=(size_t)Min((int64)BufSize,Size);
+    int ReadSize=SrcFile->Read(&Data[0],SizeToRead);
+    if (ReadSize==0)
+      break;
+    TotalRead+=ReadSize;
+
+    if ((++BlockCount & 0xf)==0)
+    {
+#ifndef SILENT
+      if ((Flags & CALCFSUM_SHOWPROGRESS)!=0)
+        uiExtractProgress(TotalRead,FileLength,TotalRead,FileLength);
+      else
+      {
+        if ((Flags & CALCFSUM_SHOWPERCENT)!=0)
+          uiMsg(UIEVENT_FILESUMPROGRESS,ToPercent(TotalRead,FileLength));
+      }
+#endif
+      Wait();
+    }
+
+    if (CRC32!=NULL)
+      HashCRC.Update(&Data[0],ReadSize);
+    if (Blake2!=NULL)
+      HashBlake2.Update(&Data[0],ReadSize);
+
+    if (Size!=INT64NDF)
+      Size-=ReadSize;
+  }
+  if ((Flags & CALCFSUM_SHOWPERCENT)!=0)
+    uiMsg(UIEVENT_FILESUMEND);
+
+  if (CRC32!=NULL)
+    *CRC32=HashCRC.GetCRC32();
+  if (Blake2!=NULL)
+  {
+    HashValue Result;
+    HashBlake2.Result(&Result);
+    memcpy(Blake2,Result.Digest,sizeof(Result.Digest));
+  }
+}
+#endif
+
+
+bool RenameFile(const wchar *SrcName,const wchar *DestName)
+{
+#ifdef _WIN_ALL
+  bool Success=MoveFile(SrcName,DestName)!=0;
+  if (!Success)
+  {
+    wchar LongName1[NM],LongName2[NM];
+    if (GetWinLongPath(SrcName,LongName1,ASIZE(LongName1)) &&
+        GetWinLongPath(DestName,LongName2,ASIZE(LongName2)))
+      Success=MoveFile(LongName1,LongName2)!=0;
+  }
+  return Success;
+#else
+  char SrcNameA[NM],DestNameA[NM];
+  WideToChar(SrcName,SrcNameA,ASIZE(SrcNameA));
+  WideToChar(DestName,DestNameA,ASIZE(DestNameA));
+  bool Success=rename(SrcNameA,DestNameA)==0;
+  return Success;
+#endif
+}
+
+
+bool DelFile(const wchar *Name)
+{
+#ifdef _WIN_ALL
+  bool Success=DeleteFile(Name)!=0;
+  if (!Success)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      Success=DeleteFile(LongName)!=0;
+  }
+  return Success;
+#else
+  char NameA[NM];
+  WideToChar(Name,NameA,ASIZE(NameA));
+  bool Success=remove(NameA)==0;
+  return Success;
+#endif
+}
+
+
+
+
+#if defined(_WIN_ALL) && !defined(SFX_MODULE)
+bool SetFileCompression(const wchar *Name,bool State)
+{
+  HANDLE hFile=CreateFile(Name,FILE_READ_DATA|FILE_WRITE_DATA,
+                 FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
+                 FILE_FLAG_BACKUP_SEMANTICS|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
+  if (hFile==INVALID_HANDLE_VALUE)
+  {
+    wchar LongName[NM];
+    if (GetWinLongPath(Name,LongName,ASIZE(LongName)))
+      hFile=CreateFile(LongName,FILE_READ_DATA|FILE_WRITE_DATA,
+                 FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
+                 FILE_FLAG_BACKUP_SEMANTICS|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
+  }
+  if (hFile==INVALID_HANDLE_VALUE)
+    return false;
+  SHORT NewState=State ? COMPRESSION_FORMAT_DEFAULT:COMPRESSION_FORMAT_NONE;
+  DWORD Result;
+  int RetCode=DeviceIoControl(hFile,FSCTL_SET_COMPRESSION,&NewState,
+                              sizeof(NewState),NULL,0,&Result,NULL);
+  CloseHandle(hFile);
+  return RetCode!=0;
+}
+#endif
+
+
+
+
+
+
+
+
+
+

reference/unrar/filefn.hpp

@@ -0,0 +1,50 @@
+#ifndef _RAR_FILEFN_
+#define _RAR_FILEFN_
+
+enum MKDIR_CODE {MKDIR_SUCCESS,MKDIR_ERROR,MKDIR_BADPATH};
+
+MKDIR_CODE MakeDir(const wchar *Name,bool SetAttr,uint Attr);
+bool CreatePath(const wchar *Path,bool SkipLastName);
+void SetDirTime(const wchar *Name,RarTime *ftm,RarTime *ftc,RarTime *fta);
+bool IsRemovable(const wchar *Name);
+
+#ifndef SFX_MODULE
+int64 GetFreeDisk(const wchar *Name);
+#endif
+
+#if defined(_WIN_ALL) && !defined(SFX_MODULE) && !defined(SILENT)
+bool IsFAT(const wchar *Root);
+#endif
+
+bool FileExist(const wchar *Name);
+bool WildFileExist(const wchar *Name);
+bool IsDir(uint Attr);
+bool IsUnreadable(uint Attr);
+bool IsLink(uint Attr);
+void SetSFXMode(const wchar *FileName);
+void EraseDiskContents(const wchar *FileName);
+bool IsDeleteAllowed(uint FileAttr);
+void PrepareToDelete(const wchar *Name);
+uint GetFileAttr(const wchar *Name);
+bool SetFileAttr(const wchar *Name,uint Attr);
+#if 0
+wchar* MkTemp(wchar *Name,size_t MaxSize);
+#endif
+
+enum CALCFSUM_FLAGS {CALCFSUM_SHOWTEXT=1,CALCFSUM_SHOWPERCENT=2,CALCFSUM_SHOWPROGRESS=4,CALCFSUM_CURPOS=8};
+
+void CalcFileSum(File *SrcFile,uint *CRC32,byte *Blake2,uint Threads,int64 Size=INT64NDF,uint Flags=0);
+
+bool RenameFile(const wchar *SrcName,const wchar *DestName);
+bool DelFile(const wchar *Name);
+bool DelDir(const wchar *Name);
+
+#if defined(_WIN_ALL) && !defined(SFX_MODULE)
+bool SetFileCompression(const wchar *Name,bool State);
+#endif
+
+
+
+
+
+#endif

reference/unrar/filestr.cpp

@@ -0,0 +1,162 @@
+#include "rar.hpp"
+
+bool ReadTextFile(
+  const wchar *Name,
+  StringList *List,
+  bool Config,
+  bool AbortOnError,
+  RAR_CHARSET SrcCharset,
+  bool Unquote,
+  bool SkipComments,
+  bool ExpandEnvStr)
+{
+  wchar FileName[NM];
+  *FileName=0;
+
+  if (Name!=NULL)
+    if (Config)
+      GetConfigName(Name,FileName,ASIZE(FileName),true,false);
+    else
+      wcsncpyz(FileName,Name,ASIZE(FileName));
+
+  File SrcFile;
+  if (*FileName!=0)
+  {
+    bool OpenCode=AbortOnError ? SrcFile.WOpen(FileName):SrcFile.Open(FileName,0);
+
+    if (!OpenCode)
+    {
+      if (AbortOnError)
+        ErrHandler.Exit(RARX_OPEN);
+      return false;
+    }
+  }
+  else
+    SrcFile.SetHandleType(FILE_HANDLESTD);
+
+  uint DataSize=0,ReadSize;
+  const int ReadBlock=4096;
+
+  Array<byte> Data(ReadBlock);
+  while ((ReadSize=SrcFile.Read(&Data[DataSize],ReadBlock))!=0)
+  {
+    DataSize+=ReadSize;
+    Data.Add(ReadSize); // Always have ReadBlock available for next data.
+  }
+  // Set to really read size, so we can zero terminate it correctly.
+  Data.Alloc(DataSize);
+
+  int LowEndian=DataSize>=2 && Data[0]==255 && Data[1]==254 ? 1:0;
+  int BigEndian=DataSize>=2 && Data[0]==254 && Data[1]==255 ? 1:0;
+  bool Utf8=DataSize>=3 && Data[0]==0xef && Data[1]==0xbb && Data[2]==0xbf;
+
+  if (SrcCharset==RCH_DEFAULT)
+  {
+    if (LowEndian || BigEndian)  
+      for (size_t I=2;I<DataSize;I++)
+        if (Data[I]<32 && Data[I]!='\r' && Data[I]!='\n')
+        {
+          SrcCharset=RCH_UNICODE; // High byte in UTF-16 char is found.
+          break;
+        }
+    if (Utf8)
+    {
+      Data.Push(0); // Need a zero terminated string for UtfToWide.
+      if (IsTextUtf8((const char *)(Data+3)))
+        SrcCharset=RCH_UTF8;
+    }
+  }
+
+  Array<wchar> DataW;
+
+  if (SrcCharset==RCH_DEFAULT || SrcCharset==RCH_OEM || SrcCharset==RCH_ANSI)
+  {
+    Data.Push(0); // Zero terminate.
+#if defined(_WIN_ALL)
+    if (SrcCharset==RCH_OEM)
+      OemToCharA((char *)&Data[0],(char *)&Data[0]);
+#endif
+    DataW.Alloc(Data.Size());
+    CharToWide((char *)&Data[0],&DataW[0],DataW.Size());
+  }
+
+  if (SrcCharset==RCH_UNICODE)
+  {
+    size_t Start=2; // Skip byte order mark.
+    if (!LowEndian && !BigEndian) // No byte order mask.
+    {
+      Start=0;
+      LowEndian=1;
+    }
+    
+    DataW.Alloc(Data.Size()/2+1);
+    size_t End=Data.Size() & ~1; // We need even bytes number for UTF-16.
+    for (size_t I=Start;I<End;I+=2)
+      DataW[(I-Start)/2]=Data[I+BigEndian]+Data[I+LowEndian]*256;
+    DataW[(End-Start)/2]=0;
+  }
+
+  if (SrcCharset==RCH_UTF8)
+  {
+    Data.Push(0); // Zero terminate data.
+    DataW.Alloc(Data.Size());
+    UtfToWide((const char *)(Data+(Utf8 ? 3:0)),&DataW[0],DataW.Size());
+  }
+
+  wchar *CurStr=&DataW[0];
+
+  while (*CurStr!=0)
+  {
+    wchar *NextStr=CurStr,*CmtPtr=NULL;
+    while (*NextStr!='\r' && *NextStr!='\n' && *NextStr!=0)
+    {
+      if (SkipComments && NextStr[0]=='/' && NextStr[1]=='/')
+      {
+        *NextStr=0;
+        CmtPtr=NextStr;
+      }
+      NextStr++;
+    }
+    bool Done=*NextStr==0;
+
+    *NextStr=0;
+    for (wchar *SpacePtr=(CmtPtr!=NULL ? CmtPtr:NextStr)-1;SpacePtr>=CurStr;SpacePtr--)
+    {
+      if (*SpacePtr!=' ' && *SpacePtr!='\t')
+        break;
+      *SpacePtr=0;
+    }
+    
+    if (Unquote && *CurStr=='\"')
+    {
+      size_t Length=wcslen(CurStr);
+      if (CurStr[Length-1]=='\"')
+      {
+        CurStr[Length-1]=0;
+        CurStr++;
+      }
+    }
+
+    bool Expanded=false;
+#if defined(_WIN_ALL)
+    if (ExpandEnvStr && *CurStr=='%') // Expand environment variables in Windows.
+    {
+      wchar ExpName[NM];
+      *ExpName=0;
+      DWORD Result=ExpandEnvironmentStrings(CurStr,ExpName,ASIZE(ExpName));
+      Expanded=Result!=0 && Result<ASIZE(ExpName);
+      if (Expanded && *ExpName!=0)
+        List->AddString(ExpName);
+    }
+#endif
+    if (!Expanded && *CurStr!=0)
+      List->AddString(CurStr);
+
+    if (Done)
+      break;
+    CurStr=NextStr+1;
+    while (*CurStr=='\r' || *CurStr=='\n')
+      CurStr++;
+  }
+  return true;
+}

reference/unrar/filestr.hpp

@@ -0,0 +1,15 @@
+#ifndef _RAR_FILESTR_
+#define _RAR_FILESTR_
+
+bool ReadTextFile(
+  const wchar *Name,
+  StringList *List,
+  bool Config,
+  bool AbortOnError=false,
+  RAR_CHARSET SrcCharset=RCH_DEFAULT,
+  bool Unquote=false,
+  bool SkipComments=false,
+  bool ExpandEnvStr=false
+);
+
+#endif

reference/unrar/find.cpp

@@ -0,0 +1,218 @@
+#include "rar.hpp"
+
+FindFile::FindFile()
+{
+  *FindMask=0;
+  FirstCall=true;
+#ifdef _WIN_ALL
+  hFind=INVALID_HANDLE_VALUE;
+#else
+  dirp=NULL;
+#endif
+}
+
+
+FindFile::~FindFile()
+{
+#ifdef _WIN_ALL
+  if (hFind!=INVALID_HANDLE_VALUE)
+    FindClose(hFind);
+#else
+  if (dirp!=NULL)
+    closedir(dirp);
+#endif
+}
+
+
+void FindFile::SetMask(const wchar *Mask)
+{
+  wcscpy(FindMask,Mask);
+  FirstCall=true;
+}
+
+
+bool FindFile::Next(FindData *fd,bool GetSymLink)
+{
+  fd->Error=false;
+  if (*FindMask==0)
+    return false;
+#ifdef _WIN_ALL
+  if (FirstCall)
+  {
+    if ((hFind=Win32Find(INVALID_HANDLE_VALUE,FindMask,fd))==INVALID_HANDLE_VALUE)
+      return false;
+  }
+  else
+    if (Win32Find(hFind,FindMask,fd)==INVALID_HANDLE_VALUE)
+      return false;
+#else
+  if (FirstCall)
+  {
+    wchar DirName[NM];
+    wcsncpyz(DirName,FindMask,ASIZE(DirName));
+    RemoveNameFromPath(DirName);
+    if (*DirName==0)
+      wcscpy(DirName,L".");
+    char DirNameA[NM];
+    WideToChar(DirName,DirNameA,ASIZE(DirNameA));
+    if ((dirp=opendir(DirNameA))==NULL)
+    {
+      fd->Error=(errno!=ENOENT);
+      return false;
+    }
+  }
+  while (1)
+  {
+    struct dirent *ent=readdir(dirp);
+    if (ent==NULL)
+      return false;
+    if (strcmp(ent->d_name,".")==0 || strcmp(ent->d_name,"..")==0)
+      continue;
+    wchar Name[NM];
+    if (!CharToWide(ent->d_name,Name,ASIZE(Name)))
+      uiMsg(UIERROR_INVALIDNAME,UINULL,Name);
+
+    if (CmpName(FindMask,Name,MATCH_NAMES))
+    {
+      wchar FullName[NM];
+      wcscpy(FullName,FindMask);
+      *PointToName(FullName)=0;
+      if (wcslen(FullName)+wcslen(Name)>=ASIZE(FullName)-1)
+      {
+        uiMsg(UIERROR_PATHTOOLONG,FullName,L"",Name);
+        return false;
+      }
+      wcscat(FullName,Name);
+      if (!FastFind(FullName,fd,GetSymLink))
+      {
+        ErrHandler.OpenErrorMsg(FullName);
+        continue;
+      }
+      wcscpy(fd->Name,FullName);
+      break;
+    }
+  }
+#endif
+  fd->Flags=0;
+  fd->IsDir=IsDir(fd->FileAttr);
+  fd->IsLink=IsLink(fd->FileAttr);
+
+  FirstCall=false;
+  wchar *NameOnly=PointToName(fd->Name);
+  if (wcscmp(NameOnly,L".")==0 || wcscmp(NameOnly,L"..")==0)
+    return Next(fd);
+  return true;
+}
+
+
+bool FindFile::FastFind(const wchar *FindMask,FindData *fd,bool GetSymLink)
+{
+  fd->Error=false;
+#ifndef _UNIX
+  if (IsWildcard(FindMask))
+    return false;
+#endif    
+#ifdef _WIN_ALL
+  HANDLE hFind=Win32Find(INVALID_HANDLE_VALUE,FindMask,fd);
+  if (hFind==INVALID_HANDLE_VALUE)
+    return false;
+  FindClose(hFind);
+#else
+  char FindMaskA[NM];
+  WideToChar(FindMask,FindMaskA,ASIZE(FindMaskA));
+
+  struct stat st;
+  if (GetSymLink)
+  {
+#ifdef SAVE_LINKS
+    if (lstat(FindMaskA,&st)!=0)
+#else
+    if (stat(FindMaskA,&st)!=0)
+#endif
+    {
+      fd->Error=(errno!=ENOENT);
+      return false;
+    }
+  }
+  else
+    if (stat(FindMaskA,&st)!=0)
+    {
+      fd->Error=(errno!=ENOENT);
+      return false;
+    }
+  fd->FileAttr=st.st_mode;
+  fd->Size=st.st_size;
+
+#ifdef UNIX_TIME_NS
+  fd->mtime.SetUnixNS(st.st_mtim.tv_sec*(uint64)1000000000+st.st_mtim.tv_nsec);
+  fd->atime.SetUnixNS(st.st_atim.tv_sec*(uint64)1000000000+st.st_atim.tv_nsec);
+  fd->ctime.SetUnixNS(st.st_ctim.tv_sec*(uint64)1000000000+st.st_ctim.tv_nsec);
+#else
+  fd->mtime.SetUnix(st.st_mtime);
+  fd->atime.SetUnix(st.st_atime);
+  fd->ctime.SetUnix(st.st_ctime);
+#endif
+
+  wcsncpyz(fd->Name,FindMask,ASIZE(fd->Name));
+#endif
+  fd->Flags=0;
+  fd->IsDir=IsDir(fd->FileAttr);
+  fd->IsLink=IsLink(fd->FileAttr);
+
+  return true;
+}
+
+
+#ifdef _WIN_ALL
+HANDLE FindFile::Win32Find(HANDLE hFind,const wchar *Mask,FindData *fd)
+{
+  WIN32_FIND_DATA FindData;
+  if (hFind==INVALID_HANDLE_VALUE)
+  {
+    hFind=FindFirstFile(Mask,&FindData);
+    if (hFind==INVALID_HANDLE_VALUE)
+    {
+      wchar LongMask[NM];
+      if (GetWinLongPath(Mask,LongMask,ASIZE(LongMask)))
+        hFind=FindFirstFile(LongMask,&FindData);
+    }
+    if (hFind==INVALID_HANDLE_VALUE)
+    {
+      int SysErr=GetLastError();
+      // We must not issue an error for "file not found" and "path not found",
+      // because it is normal to not find anything for wildcard mask when
+      // archiving. Also searching for non-existent file is normal in some
+      // other modules, like WinRAR scanning for winrar_theme_description.txt
+      // to check if any themes are available.
+      fd->Error=SysErr!=ERROR_FILE_NOT_FOUND && 
+                SysErr!=ERROR_PATH_NOT_FOUND &&
+                SysErr!=ERROR_NO_MORE_FILES;
+    }
+  }
+  else
+    if (!FindNextFile(hFind,&FindData))
+    {
+      hFind=INVALID_HANDLE_VALUE;
+      fd->Error=GetLastError()!=ERROR_NO_MORE_FILES;
+    }
+
+  if (hFind!=INVALID_HANDLE_VALUE)
+  {
+    wcsncpyz(fd->Name,Mask,ASIZE(fd->Name));
+    SetName(fd->Name,FindData.cFileName,ASIZE(fd->Name));
+    fd->Size=INT32TO64(FindData.nFileSizeHigh,FindData.nFileSizeLow);
+    fd->FileAttr=FindData.dwFileAttributes;
+    fd->ftCreationTime=FindData.ftCreationTime;
+    fd->ftLastAccessTime=FindData.ftLastAccessTime;
+    fd->ftLastWriteTime=FindData.ftLastWriteTime;
+    fd->mtime.SetWinFT(&FindData.ftLastWriteTime);
+    fd->ctime.SetWinFT(&FindData.ftCreationTime);
+    fd->atime.SetWinFT(&FindData.ftLastAccessTime);
+
+
+  }
+  fd->Flags=0;
+  return hFind;
+}
+#endif
+

reference/unrar/find.hpp

@@ -0,0 +1,49 @@
+#ifndef _RAR_FINDDATA_
+#define _RAR_FINDDATA_
+
+enum FINDDATA_FLAGS {
+  FDDF_SECONDDIR=1  // Second encounter of same directory in SCAN_GETDIRSTWICE ScanTree mode.
+};
+
+struct FindData
+{
+  wchar Name[NM];
+  uint64 Size;
+  uint FileAttr;
+  bool IsDir;
+  bool IsLink;
+  RarTime mtime;
+  RarTime ctime;
+  RarTime atime;
+#ifdef _WIN_ALL
+  FILETIME ftCreationTime; 
+  FILETIME ftLastAccessTime; 
+  FILETIME ftLastWriteTime; 
+#endif
+  uint Flags;
+  bool Error;
+};
+
+class FindFile
+{
+  private:
+#ifdef _WIN_ALL
+    static HANDLE Win32Find(HANDLE hFind,const wchar *Mask,FindData *fd);
+#endif
+
+    wchar FindMask[NM];
+    bool FirstCall;
+#ifdef _WIN_ALL
+    HANDLE hFind;
+#else
+    DIR *dirp;
+#endif
+  public:
+    FindFile();
+    ~FindFile();
+    void SetMask(const wchar *Mask);
+    bool Next(FindData *fd,bool GetSymLink=false);
+    static bool FastFind(const wchar *FindMask,FindData *fd,bool GetSymLink=false);
+};
+
+#endif

reference/unrar/getbits.cpp

@@ -0,0 +1,52 @@
+#include "rar.hpp"
+
+BitInput::BitInput(bool AllocBuffer)
+{
+  ExternalBuffer=false;
+  if (AllocBuffer)
+  {
+    // getbits32 attempts to read data from InAddr, ... InAddr+3 positions.
+    // So let's allocate 3 additional bytes for situation, when we need to
+    // read only 1 byte from the last position of buffer and avoid a crash
+    // from access to next 3 bytes, which contents we do not need.
+    size_t BufSize=MAX_SIZE+3;
+    InBuf=new byte[BufSize];
+
+    // Ensure that we get predictable results when accessing bytes in area
+    // not filled with read data.
+    memset(InBuf,0,BufSize);
+  }
+  else
+    InBuf=NULL;
+}
+
+
+BitInput::~BitInput()
+{
+  if (!ExternalBuffer)
+    delete[] InBuf;
+}
+
+
+void BitInput::faddbits(uint Bits)
+{
+  // Function wrapped version of inline addbits to save code size.
+  addbits(Bits);
+}
+
+
+uint BitInput::fgetbits()
+{
+  // Function wrapped version of inline getbits to save code size.
+  return getbits();
+}
+
+
+void BitInput::SetExternalBuffer(byte *Buf)
+{
+  if (InBuf!=NULL && !ExternalBuffer)
+    delete[] InBuf;
+  InBuf=Buf;
+  ExternalBuffer=true;
+}
+

reference/unrar/getbits.hpp

@@ -0,0 +1,68 @@
+#ifndef _RAR_GETBITS_
+#define _RAR_GETBITS_
+
+class BitInput
+{
+  public:
+    enum BufferSize {MAX_SIZE=0x8000}; // Size of input buffer.
+
+    int InAddr; // Curent byte position in the buffer.
+    int InBit;  // Current bit position in the current byte.
+
+    bool ExternalBuffer;
+  public:
+    BitInput(bool AllocBuffer);
+    ~BitInput();
+
+    byte *InBuf; // Dynamically allocated input buffer.
+
+    void InitBitInput()
+    {
+      InAddr=InBit=0;
+    }
+    
+    // Move forward by 'Bits' bits.
+    void addbits(uint Bits)
+    {
+      Bits+=InBit;
+      InAddr+=Bits>>3;
+      InBit=Bits&7;
+    }
+    
+    // Return 16 bits from current position in the buffer.
+    // Bit at (InAddr,InBit) has the highest position in returning data.
+    uint getbits()
+    {
+      uint BitField=(uint)InBuf[InAddr] << 16;
+      BitField|=(uint)InBuf[InAddr+1] << 8;
+      BitField|=(uint)InBuf[InAddr+2];
+      BitField >>= (8-InBit);
+      return BitField & 0xffff;
+    }
+
+    // Return 32 bits from current position in the buffer.
+    // Bit at (InAddr,InBit) has the highest position in returning data.
+    uint getbits32()
+    {
+      uint BitField=(uint)InBuf[InAddr] << 24;
+      BitField|=(uint)InBuf[InAddr+1] << 16;
+      BitField|=(uint)InBuf[InAddr+2] << 8;
+      BitField|=(uint)InBuf[InAddr+3];
+      BitField <<= InBit;
+      BitField|=(uint)InBuf[InAddr+4] >> (8-InBit);
+      return BitField & 0xffffffff;
+    }
+    
+    void faddbits(uint Bits);
+    uint fgetbits();
+    
+    // Check if buffer has enough space for IncPtr bytes. Returns 'true'
+    // if buffer will be overflown.
+    bool Overflow(uint IncPtr) 
+    {
+      return InAddr+IncPtr>=MAX_SIZE;
+    }
+
+    void SetExternalBuffer(byte *Buf);
+};
+#endif

reference/unrar/global.cpp

@@ -0,0 +1,7 @@
+#define INCLUDEGLOBAL
+
+#if defined(__BORLANDC__) || defined(_MSC_VER)
+#pragma hdrstop
+#endif
+
+#include "rar.hpp"

reference/unrar/global.hpp

@@ -0,0 +1,14 @@
+#ifndef _RAR_GLOBAL_
+#define _RAR_GLOBAL_
+
+#ifdef INCLUDEGLOBAL
+  #define EXTVAR
+#else
+  #define EXTVAR extern
+#endif
+
+EXTVAR ErrorHandler ErrHandler;
+
+
+
+#endif

reference/unrar/hardlinks.cpp

@@ -0,0 +1,34 @@
+bool ExtractHardlink(wchar *NameNew,wchar *NameExisting,size_t NameExistingSize)
+{
+  SlashToNative(NameExisting,NameExisting,NameExistingSize); // Not needed for RAR 5.1+ archives.
+
+  if (!FileExist(NameExisting))
+    return false;
+  CreatePath(NameNew,true);
+
+#ifdef _WIN_ALL
+  bool Success=CreateHardLink(NameNew,NameExisting,NULL)!=0;
+  if (!Success)
+  {
+    uiMsg(UIERROR_HLINKCREATE,NameNew);
+    ErrHandler.SysErrMsg();
+    ErrHandler.SetErrorCode(RARX_CREATE);
+  }
+  return Success;
+#elif defined(_UNIX)
+  char NameExistingA[NM],NameNewA[NM];
+  WideToChar(NameExisting,NameExistingA,ASIZE(NameExistingA));
+  WideToChar(NameNew,NameNewA,ASIZE(NameNewA));
+  bool Success=link(NameExistingA,NameNewA)==0;
+  if (!Success)
+  {
+    uiMsg(UIERROR_HLINKCREATE,NameNew);
+    ErrHandler.SysErrMsg();
+    ErrHandler.SetErrorCode(RARX_CREATE);
+  }
+  return Success;
+#else
+  return false;
+#endif
+}
+

reference/unrar/hash.cpp

@@ -0,0 +1,135 @@
+#include "rar.hpp"
+
+void HashValue::Init(HASH_TYPE Type)
+{
+  HashValue::Type=Type;
+
+  // Zero length data CRC32 is 0. It is important to set it when creating
+  // headers with no following data like directories or symlinks.
+  if (Type==HASH_RAR14 || Type==HASH_CRC32)
+    CRC32=0;
+  if (Type==HASH_BLAKE2)
+  {
+    // dd0e891776933f43c7d032b08a917e25741f8aa9a12c12e1cac8801500f2ca4f
+    // is BLAKE2sp hash of empty data. We init the structure to this value,
+    // so if we create a file or service header with no following data like
+    // "file copy" or "symlink", we set the checksum to proper value avoiding
+    // additional header type or size checks when extracting.
+    static byte EmptyHash[32]={
+      0xdd, 0x0e, 0x89, 0x17, 0x76, 0x93, 0x3f, 0x43,
+      0xc7, 0xd0, 0x32, 0xb0, 0x8a, 0x91, 0x7e, 0x25,
+      0x74, 0x1f, 0x8a, 0xa9, 0xa1, 0x2c, 0x12, 0xe1,
+      0xca, 0xc8, 0x80, 0x15, 0x00, 0xf2, 0xca, 0x4f
+    };
+    memcpy(Digest,EmptyHash,sizeof(Digest));
+  }
+}
+
+
+bool HashValue::operator == (const HashValue &cmp)
+{
+  if (Type==HASH_NONE || cmp.Type==HASH_NONE)
+    return true;
+  if (Type==HASH_RAR14 && cmp.Type==HASH_RAR14 || 
+      Type==HASH_CRC32 && cmp.Type==HASH_CRC32)
+    return CRC32==cmp.CRC32;
+  if (Type==HASH_BLAKE2 && cmp.Type==HASH_BLAKE2)
+    return memcmp(Digest,cmp.Digest,sizeof(Digest))==0;
+  return false;
+}
+
+
+DataHash::DataHash()
+{
+  blake2ctx=NULL;
+  HashType=HASH_NONE;
+#ifdef RAR_SMP
+  ThPool=NULL;
+  MaxThreads=0;
+#endif
+}
+
+
+DataHash::~DataHash()
+{
+#ifdef RAR_SMP
+  DestroyThreadPool(ThPool);
+#endif
+  cleandata(&CurCRC32, sizeof(CurCRC32));
+  if (blake2ctx!=NULL)
+  {
+    cleandata(blake2ctx, sizeof(blake2sp_state));
+    delete blake2ctx;
+  }
+}
+
+
+void DataHash::Init(HASH_TYPE Type,uint MaxThreads)
+{
+  if (blake2ctx==NULL)
+    blake2ctx=new blake2sp_state;
+  HashType=Type;
+  if (Type==HASH_RAR14)
+    CurCRC32=0;
+  if (Type==HASH_CRC32)
+    CurCRC32=0xffffffff; // Initial CRC32 value.
+  if (Type==HASH_BLAKE2)
+    blake2sp_init(blake2ctx);
+#ifdef RAR_SMP
+  DataHash::MaxThreads=Min(MaxThreads,MaxHashThreads);
+#endif
+}
+
+
+void DataHash::Update(const void *Data,size_t DataSize)
+{
+#ifndef SFX_MODULE
+  if (HashType==HASH_RAR14)
+    CurCRC32=Checksum14((ushort)CurCRC32,Data,DataSize);
+#endif
+  if (HashType==HASH_CRC32)
+    CurCRC32=CRC32(CurCRC32,Data,DataSize);
+
+  if (HashType==HASH_BLAKE2)
+  {
+#ifdef RAR_SMP
+    if (MaxThreads>1 && ThPool==NULL)
+      ThPool=CreateThreadPool();
+    blake2ctx->ThPool=ThPool;
+    blake2ctx->MaxThreads=MaxThreads;
+#endif
+    blake2sp_update( blake2ctx, (byte *)Data, DataSize);
+  }
+}
+
+
+void DataHash::Result(HashValue *Result)
+{
+  Result->Type=HashType;
+  if (HashType==HASH_RAR14)
+    Result->CRC32=CurCRC32;
+  if (HashType==HASH_CRC32)
+    Result->CRC32=CurCRC32^0xffffffff;
+  if (HashType==HASH_BLAKE2)
+  {
+    // Preserve the original context, so we can continue hashing if necessary.
+    blake2sp_state res=*blake2ctx;
+    blake2sp_final(&res,Result->Digest);
+  }
+}
+
+
+uint DataHash::GetCRC32()
+{
+  return HashType==HASH_CRC32 ? CurCRC32^0xffffffff : 0;
+}
+
+
+bool DataHash::Cmp(HashValue *CmpValue,byte *Key)
+{
+  HashValue Final;
+  Result(&Final);
+  if (Key!=NULL)
+    ConvertHashToMAC(&Final,Key);
+  return Final==*CmpValue;
+}

reference/unrar/hash.hpp

@@ -0,0 +1,52 @@
+#ifndef _RAR_DATAHASH_
+#define _RAR_DATAHASH_
+
+enum HASH_TYPE {HASH_NONE,HASH_RAR14,HASH_CRC32,HASH_BLAKE2};
+
+struct HashValue
+{
+  void Init(HASH_TYPE Type);
+  bool operator == (const HashValue &cmp);
+  bool operator != (const HashValue &cmp) {return !(*this==cmp);}
+
+  HASH_TYPE Type;
+  union
+  {
+    uint CRC32;
+    byte Digest[SHA256_DIGEST_SIZE];
+  };
+};
+
+
+#ifdef RAR_SMP
+class ThreadPool;
+class DataHash;
+#endif
+
+
+class DataHash
+{
+  private:
+    HASH_TYPE HashType;
+    uint CurCRC32;
+    blake2sp_state *blake2ctx;
+
+#ifdef RAR_SMP
+    ThreadPool *ThPool;
+
+    uint MaxThreads;
+    // Upper limit for maximum threads to prevent wasting threads in pool.
+    static const uint MaxHashThreads=8;
+#endif
+  public:
+    DataHash();
+    ~DataHash();
+    void Init(HASH_TYPE Type,uint MaxThreads);
+    void Update(const void *Data,size_t DataSize);
+    void Result(HashValue *Result);
+    uint GetCRC32();
+    bool Cmp(HashValue *CmpValue,byte *Key);
+    HASH_TYPE Type() {return HashType;}
+};
+
+#endif

reference/unrar/headers.cpp

@@ -0,0 +1,61 @@
+#include "rar.hpp"
+
+void FileHeader::Reset(size_t SubDataSize)
+{
+  SubData.Alloc(SubDataSize);
+  BaseBlock::Reset();
+  FileHash.Init(HASH_NONE);
+  mtime.Reset();
+  atime.Reset();
+  ctime.Reset();
+  SplitBefore=false;
+  SplitAfter=false;
+
+  UnknownUnpSize=0;
+
+  SubFlags=0; // Important for RAR 3.0 subhead.
+  
+  CryptMethod=CRYPT_NONE;
+  Encrypted=false;
+  SaltSet=false;
+  UsePswCheck=false;
+  UseHashKey=false;
+  Lg2Count=0;
+
+  Solid=false;
+  Dir=false;
+  WinSize=0;
+  Inherited=false;
+  SubBlock=false;
+  CommentInHeader=false;
+  Version=false;
+  LargeFile=false;
+
+  RedirType=FSREDIR_NONE;
+  DirTarget=false;
+  UnixOwnerSet=false;
+}
+
+
+FileHeader& FileHeader::operator = (FileHeader &hd)
+{
+  SubData.Reset();
+  memcpy(this,&hd,sizeof(*this));
+  SubData.CleanData();
+  SubData=hd.SubData;
+  return *this;
+}
+
+
+void MainHeader::Reset()
+{
+  HighPosAV=0;
+  PosAV=0;
+  CommentInHeader=false;
+  PackComment=false;
+  Locator=false;
+  QOpenOffset=0;
+  QOpenMaxSize=0;
+  RROffset=0;
+  RRMaxSize=0;
+}

reference/unrar/headers.hpp

@@ -0,0 +1,380 @@
+#ifndef _RAR_HEADERS_
+#define _RAR_HEADERS_
+
+#define  SIZEOF_MARKHEAD3        7 // Size of RAR 4.x archive mark header.
+#define  SIZEOF_MAINHEAD14       7 // Size of RAR 1.4 main archive header.
+#define  SIZEOF_MAINHEAD3       13 // Size of RAR 4.x main archive header.
+#define  SIZEOF_FILEHEAD14      21 // Size of RAR 1.4 file header.
+#define  SIZEOF_FILEHEAD3       32 // Size of RAR 3.0 file header.
+#define  SIZEOF_SHORTBLOCKHEAD   7
+#define  SIZEOF_LONGBLOCKHEAD   11
+#define  SIZEOF_SUBBLOCKHEAD    14
+#define  SIZEOF_COMMHEAD        13
+#define  SIZEOF_PROTECTHEAD     26
+#define  SIZEOF_AVHEAD          14
+#define  SIZEOF_SIGNHEAD        15
+#define  SIZEOF_UOHEAD          18
+#define  SIZEOF_MACHEAD         22
+#define  SIZEOF_EAHEAD          24
+#define  SIZEOF_BEEAHEAD        24
+#define  SIZEOF_STREAMHEAD      26
+
+#define  VER_PACK               29
+#define  VER_PACK5              50 // It is stored as 0, but we subtract 50 when saving an archive.
+#define  VER_UNPACK             29
+#define  VER_UNPACK5            50 // It is stored as 0, but we add 50 when reading an archive.
+
+#define  MHD_VOLUME         0x0001U
+
+// Old style main archive comment embed into main archive header. Must not
+// be used in new archives anymore.
+#define  MHD_COMMENT        0x0002U
+
+#define  MHD_LOCK           0x0004U
+#define  MHD_SOLID          0x0008U
+#define  MHD_PACK_COMMENT   0x0010U
+#define  MHD_NEWNUMBERING   0x0010U
+#define  MHD_AV             0x0020U
+#define  MHD_PROTECT        0x0040U
+#define  MHD_PASSWORD       0x0080U
+#define  MHD_FIRSTVOLUME    0x0100U
+
+#define  LHD_SPLIT_BEFORE   0x0001U
+#define  LHD_SPLIT_AFTER    0x0002U
+#define  LHD_PASSWORD       0x0004U
+
+// Old style file comment embed into file header. Must not be used
+// in new archives anymore.
+#define  LHD_COMMENT        0x0008U
+
+// For non-file subheaders it denotes 'subblock having a parent file' flag.
+#define  LHD_SOLID          0x0010U
+
+
+#define  LHD_WINDOWMASK     0x00e0U
+#define  LHD_WINDOW64       0x0000U
+#define  LHD_WINDOW128      0x0020U
+#define  LHD_WINDOW256      0x0040U
+#define  LHD_WINDOW512      0x0060U
+#define  LHD_WINDOW1024     0x0080U
+#define  LHD_WINDOW2048     0x00a0U
+#define  LHD_WINDOW4096     0x00c0U
+#define  LHD_DIRECTORY      0x00e0U
+
+#define  LHD_LARGE          0x0100U
+#define  LHD_UNICODE        0x0200U
+#define  LHD_SALT           0x0400U
+#define  LHD_VERSION        0x0800U
+#define  LHD_EXTTIME        0x1000U
+
+#define  SKIP_IF_UNKNOWN    0x4000U
+#define  LONG_BLOCK         0x8000U
+
+#define  EARC_NEXT_VOLUME   0x0001U // Not last volume.
+#define  EARC_DATACRC       0x0002U // Store CRC32 of RAR archive (now is used only in volumes).
+#define  EARC_REVSPACE      0x0004U // Reserve space for end of REV file 7 byte record.
+#define  EARC_VOLNUMBER     0x0008U // Store a number of current volume.
+
+enum HEADER_TYPE {
+  // RAR 5.0 header types.
+  HEAD_MARK=0x00, HEAD_MAIN=0x01, HEAD_FILE=0x02, HEAD_SERVICE=0x03,
+  HEAD_CRYPT=0x04, HEAD_ENDARC=0x05, HEAD_UNKNOWN=0xff,
+
+  // RAR 1.5 - 4.x header types.
+  HEAD3_MARK=0x72,HEAD3_MAIN=0x73,HEAD3_FILE=0x74,HEAD3_CMT=0x75,
+  HEAD3_AV=0x76,HEAD3_OLDSERVICE=0x77,HEAD3_PROTECT=0x78,HEAD3_SIGN=0x79,
+  HEAD3_SERVICE=0x7a,HEAD3_ENDARC=0x7b
+};
+
+enum { EA_HEAD=0x100,UO_HEAD=0x101,MAC_HEAD=0x102,BEEA_HEAD=0x103,
+       NTACL_HEAD=0x104,STREAM_HEAD=0x105 };
+
+
+// Internal implementation, depends on archive format version.
+enum HOST_SYSTEM {
+  // RAR 5.0 host OS
+  HOST5_WINDOWS=0,HOST5_UNIX=1,
+
+  // RAR 3.0 host OS.
+  HOST_MSDOS=0,HOST_OS2=1,HOST_WIN32=2,HOST_UNIX=3,HOST_MACOS=4,
+  HOST_BEOS=5,HOST_MAX
+};
+
+// Unified archive format independent implementation.
+enum HOST_SYSTEM_TYPE {
+  HSYS_WINDOWS, HSYS_UNIX, HSYS_UNKNOWN
+};
+
+
+// We also use these values in extra field, so do not modify them.
+enum FILE_SYSTEM_REDIRECT {
+  FSREDIR_NONE=0, FSREDIR_UNIXSYMLINK, FSREDIR_WINSYMLINK, FSREDIR_JUNCTION,
+  FSREDIR_HARDLINK, FSREDIR_FILECOPY
+};
+
+
+#define SUBHEAD_TYPE_CMT      L"CMT"
+#define SUBHEAD_TYPE_QOPEN    L"QO"
+#define SUBHEAD_TYPE_ACL      L"ACL"
+#define SUBHEAD_TYPE_STREAM   L"STM"
+#define SUBHEAD_TYPE_UOWNER   L"UOW"
+#define SUBHEAD_TYPE_AV       L"AV"
+#define SUBHEAD_TYPE_RR       L"RR"
+#define SUBHEAD_TYPE_OS2EA    L"EA2"
+
+/* new file inherits a subblock when updating a host file */
+#define SUBHEAD_FLAGS_INHERITED    0x80000000
+
+#define SUBHEAD_FLAGS_CMT_UNICODE  0x00000001
+
+
+struct MarkHeader
+{
+  byte Mark[8];
+
+  // Following fields are virtual and not present in real blocks.
+  uint HeadSize;
+};
+
+
+struct BaseBlock
+{
+  uint HeadCRC;  // 'ushort' for RAR 1.5.
+  HEADER_TYPE HeaderType; // 1 byte for RAR 1.5.
+  uint Flags;    // 'ushort' for RAR 1.5.
+  uint HeadSize; // 'ushort' for RAR 1.5, up to 2 MB for RAR 5.0.
+
+  bool SkipIfUnknown;
+
+  void Reset()
+  {
+    SkipIfUnknown=false;
+  }
+};
+
+
+struct BlockHeader:BaseBlock
+{
+  uint DataSize;
+};
+
+
+struct MainHeader:BaseBlock
+{
+  ushort HighPosAV;
+  uint PosAV;
+  bool CommentInHeader;
+  bool PackComment; // For RAR 1.4 archive format only.
+  bool Locator;
+  uint64 QOpenOffset;  // Offset of quick list record.
+  uint64 QOpenMaxSize; // Maximum size of QOpen offset in locator extra field.
+  uint64 RROffset;     // Offset of recovery record.
+  uint64 RRMaxSize;    // Maximum size of RR offset in locator extra field.
+  void Reset();
+};
+
+
+struct FileHeader:BlockHeader
+{
+  byte HostOS;
+  byte UnpVer;
+  byte Method;
+  union {
+    uint FileAttr;
+    uint SubFlags;
+  };
+  wchar FileName[NM];
+
+  Array<byte> SubData;
+
+  RarTime mtime;
+  RarTime ctime;
+  RarTime atime;
+
+  int64 PackSize;
+  int64 UnpSize;
+  int64 MaxSize; // Reserve size bytes for vint of this size.
+
+  HashValue FileHash;
+
+  uint FileFlags;
+
+  bool SplitBefore;
+  bool SplitAfter;
+
+  bool UnknownUnpSize;
+
+  bool Encrypted;
+  CRYPT_METHOD CryptMethod;
+  bool SaltSet;
+  byte Salt[SIZE_SALT50];
+  byte InitV[SIZE_INITV];
+  bool UsePswCheck;
+  byte PswCheck[SIZE_PSWCHECK];
+
+  // Use HMAC calculated from HashKey and checksum instead of plain checksum.
+  bool UseHashKey;
+
+  // Key to convert checksum to HMAC. Derived from password with PBKDF2
+  // using additional iterations.
+  byte HashKey[SHA256_DIGEST_SIZE];
+
+  uint Lg2Count; // Log2 of PBKDF2 repetition count.
+
+  bool Solid;
+  bool Dir;
+  bool CommentInHeader; // RAR 2.0 file comment.
+  bool Version;   // name.ext;ver file name containing the version number.
+  size_t WinSize;
+  bool Inherited; // New file inherits a subblock when updating a host file (for subblocks only).
+
+  // 'true' if file sizes use 8 bytes instead of 4. Not used in RAR 5.0.
+  bool LargeFile;
+  
+  // 'true' for HEAD_SERVICE block, which is a child of preceding file block.
+  // RAR 4.x uses 'solid' flag to indicate child subheader blocks in archives.
+  bool SubBlock;
+
+  HOST_SYSTEM_TYPE HSType;
+
+  FILE_SYSTEM_REDIRECT RedirType;
+  wchar RedirName[NM];
+  bool DirTarget;
+
+  bool UnixOwnerSet,UnixOwnerNumeric,UnixGroupNumeric;
+  char UnixOwnerName[256],UnixGroupName[256];
+#ifdef _UNIX
+  uid_t UnixOwnerID;
+  gid_t UnixGroupID;
+#else // Need these Unix fields in Windows too for 'list' command.
+  uint UnixOwnerID;
+  uint UnixGroupID;
+#endif
+
+  void Reset(size_t SubDataSize=0);
+
+  bool CmpName(const wchar *Name)
+  {
+    return(wcscmp(FileName,Name)==0);
+  }
+
+  FileHeader& operator = (FileHeader &hd);
+};
+
+
+struct EndArcHeader:BaseBlock
+{
+  // Optional CRC32 of entire archive up to start of EndArcHeader block.
+  // Present in RAR 4.x archives if EARC_DATACRC flag is set.
+  uint ArcDataCRC;  
+  
+  uint VolNumber; // Optional number of current volume.
+
+  // 7 additional zero bytes can be stored here if EARC_REVSPACE is set.
+
+  bool NextVolume; // Not last volume.
+  bool DataCRC;
+  bool RevSpace;
+  bool StoreVolNumber;
+  void Reset()
+  {
+    BaseBlock::Reset();
+    NextVolume=false;
+    DataCRC=false;
+    RevSpace=false;
+    StoreVolNumber=false;
+  }
+};
+
+
+struct CryptHeader:BaseBlock
+{
+  bool UsePswCheck;
+  uint Lg2Count; // Log2 of PBKDF2 repetition count.
+  byte Salt[SIZE_SALT50];
+  byte PswCheck[SIZE_PSWCHECK];
+};
+
+
+// SubBlockHeader and its successors were used in RAR 2.x format.
+// RAR 4.x uses FileHeader with HEAD_SERVICE HeaderType for subblocks.
+struct SubBlockHeader:BlockHeader
+{
+  ushort SubType;
+  byte Level;
+};
+
+
+struct CommentHeader:BaseBlock
+{
+  ushort UnpSize;
+  byte UnpVer;
+  byte Method;
+  ushort CommCRC;
+};
+
+
+struct ProtectHeader:BlockHeader
+{
+  byte Version;
+  ushort RecSectors;
+  uint TotalBlocks;
+  byte Mark[8];
+};
+
+
+struct AVHeader:BaseBlock
+{
+  byte UnpVer;
+  byte Method;
+  byte AVVer;
+  uint AVInfoCRC;
+};
+
+
+struct SignHeader:BaseBlock
+{
+  uint CreationTime;
+  ushort ArcNameSize;
+  ushort UserNameSize;
+};
+
+
+struct UnixOwnersHeader:SubBlockHeader
+{
+  ushort OwnerNameSize;
+  ushort GroupNameSize;
+/* dummy */
+  char OwnerName[256];
+  char GroupName[256];
+};
+
+
+struct EAHeader:SubBlockHeader
+{
+  uint UnpSize;
+  byte UnpVer;
+  byte Method;
+  uint EACRC;
+};
+
+
+struct StreamHeader:SubBlockHeader
+{
+  uint UnpSize;
+  byte UnpVer;
+  byte Method;
+  uint StreamCRC;
+  ushort StreamNameSize;
+  char StreamName[260];
+};
+
+
+struct MacFInfoHeader:SubBlockHeader
+{
+  uint fileType;
+  uint fileCreator;
+};
+
+
+#endif

reference/unrar/headers5.hpp

@@ -0,0 +1,100 @@
+#ifndef _RAR_HEADERS5_
+#define _RAR_HEADERS5_
+
+#define  SIZEOF_MARKHEAD5        8  // RAR 5.0 signature length.
+#define  SIZEOF_SHORTBLOCKHEAD5  7  // Smallest RAR 5.0 block size.
+
+// RAR 5.0 block flags common for all blocks.
+
+// Additional extra area is present in the end of block header.
+#define HFL_EXTRA           0x0001
+// Additional data area is present in the end of block header.
+#define HFL_DATA            0x0002
+// Unknown blocks with this flag must be skipped when updating an archive.
+#define HFL_SKIPIFUNKNOWN   0x0004
+// Data area of this block is continuing from previous volume.
+#define HFL_SPLITBEFORE     0x0008
+// Data area of this block is continuing in next volume.
+#define HFL_SPLITAFTER      0x0010
+// Block depends on preceding file block.
+#define HFL_CHILD           0x0020
+// Preserve a child block if host is modified.
+#define HFL_INHERITED       0x0040
+
+// RAR 5.0 main archive header specific flags.
+#define MHFL_VOLUME         0x0001 // Volume.
+#define MHFL_VOLNUMBER      0x0002 // Volume number field is present. True for all volumes except first.
+#define MHFL_SOLID          0x0004 // Solid archive.
+#define MHFL_PROTECT        0x0008 // Recovery record is present.
+#define MHFL_LOCK           0x0010 // Locked archive.
+
+// RAR 5.0 file header specific flags.
+#define FHFL_DIRECTORY      0x0001 // Directory.
+#define FHFL_UTIME          0x0002 // Time field in Unix format is present.
+#define FHFL_CRC32          0x0004 // CRC32 field is present.
+#define FHFL_UNPUNKNOWN     0x0008 // Unknown unpacked size.
+
+// RAR 5.0 end of archive header specific flags.
+#define EHFL_NEXTVOLUME     0x0001 // Not last volume.
+
+// RAR 5.0 archive encryption header specific flags.
+#define CHFL_CRYPT_PSWCHECK 0x0001 // Password check data is present.
+
+
+// RAR 5.0 file compression flags.
+#define FCI_ALGO_BIT0       0x0001 // Version of compression algorithm.
+#define FCI_ALGO_BIT1       0x0002 // 0 .. 63.
+#define FCI_ALGO_BIT2       0x0004
+#define FCI_ALGO_BIT3       0x0008
+#define FCI_ALGO_BIT4       0x0010
+#define FCI_ALGO_BIT5       0x0020
+#define FCI_SOLID           0x0040 // Solid flag.
+#define FCI_METHOD_BIT0     0x0080 // Compression method.
+#define FCI_METHOD_BIT1     0x0100 // 0 .. 5 (6 and 7 are not used).
+#define FCI_METHOD_BIT2     0x0200
+#define FCI_DICT_BIT0       0x0400 // Dictionary size.
+#define FCI_DICT_BIT1       0x0800 // 128 KB .. 4 GB.
+#define FCI_DICT_BIT2       0x1000
+#define FCI_DICT_BIT3       0x2000
+
+// Main header extra field values.
+#define MHEXTRA_LOCATOR       0x01 // Position of quick list and other blocks.
+
+// Flags for MHEXTRA_LOCATOR.
+#define MHEXTRA_LOCATOR_QLIST 0x01 // Quick open offset is present.
+#define MHEXTRA_LOCATOR_RR    0x02 // Recovery record offset is present.
+
+// File and service header extra field values.
+#define FHEXTRA_CRYPT         0x01 // Encryption parameters.
+#define FHEXTRA_HASH          0x02 // File hash.
+#define FHEXTRA_HTIME         0x03 // High precision file time.
+#define FHEXTRA_VERSION       0x04 // File version information.
+#define FHEXTRA_REDIR         0x05 // File system redirection (links, etc.).
+#define FHEXTRA_UOWNER        0x06 // Unix owner and group information.
+#define FHEXTRA_SUBDATA       0x07 // Service header subdata array.
+
+
+// Hash type values for FHEXTRA_HASH.
+#define FHEXTRA_HASH_BLAKE2    0x00
+
+// Flags for FHEXTRA_HTIME.
+#define FHEXTRA_HTIME_UNIXTIME 0x01 // Use Unix time_t format.
+#define FHEXTRA_HTIME_MTIME    0x02 // mtime is present.
+#define FHEXTRA_HTIME_CTIME    0x04 // ctime is present.
+#define FHEXTRA_HTIME_ATIME    0x08 // atime is present.
+#define FHEXTRA_HTIME_UNIX_NS  0x10 // Unix format with nanosecond precision.
+
+// Flags for FHEXTRA_CRYPT.
+#define FHEXTRA_CRYPT_PSWCHECK 0x01 // Store password check data.
+#define FHEXTRA_CRYPT_HASHMAC  0x02 // Use MAC for unpacked data checksums.
+
+// Flags for FHEXTRA_REDIR.
+#define FHEXTRA_REDIR_DIR      0x01 // Link target is directory.
+
+// Flags for FHEXTRA_UOWNER.
+#define FHEXTRA_UOWNER_UNAME   0x01 // User name string is present.
+#define FHEXTRA_UOWNER_GNAME   0x02 // Group name string is present.
+#define FHEXTRA_UOWNER_NUMUID  0x04 // Numeric user ID is present.
+#define FHEXTRA_UOWNER_NUMGID  0x08 // Numeric group ID is present.
+
+#endif

reference/unrar/isnt.cpp

@@ -0,0 +1,24 @@
+#include "rar.hpp"
+
+#ifdef _WIN_ALL
+DWORD WinNT()
+{
+  static int dwPlatformId=-1;
+  static DWORD dwMajorVersion,dwMinorVersion;
+  if (dwPlatformId==-1)
+  {
+    OSVERSIONINFO WinVer;
+    WinVer.dwOSVersionInfoSize=sizeof(WinVer);
+    GetVersionEx(&WinVer);
+    dwPlatformId=WinVer.dwPlatformId;
+    dwMajorVersion=WinVer.dwMajorVersion;
+    dwMinorVersion=WinVer.dwMinorVersion;
+  }
+  DWORD Result=0;
+  if (dwPlatformId==VER_PLATFORM_WIN32_NT)
+    Result=dwMajorVersion*0x100+dwMinorVersion;
+
+
+  return Result;
+}
+#endif

reference/unrar/isnt.hpp

@@ -0,0 +1,13 @@
+#ifndef _RAR_ISNT_
+#define _RAR_ISNT_
+
+enum WINNT_VERSION {
+  WNT_NONE=0,WNT_NT351=0x0333,WNT_NT4=0x0400,WNT_W2000=0x0500,
+  WNT_WXP=0x0501,WNT_W2003=0x0502,WNT_VISTA=0x0600,WNT_W7=0x0601,
+  WNT_W8=0x0602,WNT_W81=0x0603,WNT_W10=0x0a00
+};
+
+DWORD WinNT();
+
+
+#endif

reference/unrar/license.txt

@@ -0,0 +1,42 @@
+ ******    *****   ******   UnRAR - free utility for RAR archives
+ **   **  **   **  **   **  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ ******   *******  ******    License for use and distribution of
+ **   **  **   **  **   **   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ **   **  **   **  **   **         FREE portable version
+                                   ~~~~~~~~~~~~~~~~~~~~~
+
+      The source code of UnRAR utility is freeware. This means:
+
+   1. All copyrights to RAR and the utility UnRAR are exclusively
+      owned by the author - Alexander Roshal.
+
+   2. UnRAR source code may be used in any software to handle
+      RAR archives without limitations free of charge, but cannot be
+      used to develop RAR (WinRAR) compatible archiver and to
+      re-create RAR compression algorithm, which is proprietary.
+      Distribution of modified UnRAR source code in separate form
+      or as a part of other software is permitted, provided that
+      full text of this paragraph, starting from "UnRAR source code"
+      words, is included in license, or in documentation if license
+      is not available, and in source code comments of resulting package.
+
+   3. The UnRAR utility may be freely distributed. It is allowed
+      to distribute UnRAR inside of other software packages.
+
+   4. THE RAR ARCHIVER AND THE UnRAR UTILITY ARE DISTRIBUTED "AS IS".
+      NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED.  YOU USE AT 
+      YOUR OWN RISK. THE AUTHOR WILL NOT BE LIABLE FOR DATA LOSS, 
+      DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING
+      OR MISUSING THIS SOFTWARE.
+
+   5. Installing and using the UnRAR utility signifies acceptance of
+      these terms and conditions of the license.
+
+   6. If you don't agree with terms of the license you must remove
+      UnRAR files from your storage devices and cease to use the
+      utility.
+
+      Thank you for your interest in RAR and UnRAR.
+
+
+                                            Alexander L. Roshal

reference/unrar/list.cpp

@@ -0,0 +1,472 @@
+#include "rar.hpp"
+
+static void ListFileHeader(Archive &Arc,FileHeader &hd,bool &TitleShown,bool Verbose,bool Technical,bool Bare);
+static void ListSymLink(Archive &Arc);
+static void ListFileAttr(uint A,HOST_SYSTEM_TYPE HostType,wchar *AttrStr,size_t AttrSize);
+static void ListOldSubHeader(Archive &Arc);
+static void ListNewSubHeader(CommandData *Cmd,Archive &Arc);
+
+void ListArchive(CommandData *Cmd)
+{
+  int64 SumPackSize=0,SumUnpSize=0;
+  uint ArcCount=0,SumFileCount=0;
+  bool Technical=(Cmd->Command[1]=='T');
+  bool ShowService=Technical && Cmd->Command[2]=='A';
+  bool Bare=(Cmd->Command[1]=='B');
+  bool Verbose=(Cmd->Command[0]=='V');
+
+  wchar ArcName[NM];
+  while (Cmd->GetArcName(ArcName,ASIZE(ArcName)))
+  {
+    if (Cmd->ManualPassword)
+      Cmd->Password.Clean(); // Clean user entered password before processing next archive.
+
+    Archive Arc(Cmd);
+#ifdef _WIN_ALL
+    Arc.RemoveSequentialFlag();
+#endif
+    if (!Arc.WOpen(ArcName))
+      continue;
+    bool FileMatched=true;
+    while (1)
+    {
+      int64 TotalPackSize=0,TotalUnpSize=0;
+      uint FileCount=0;
+      if (Arc.IsArchive(true))
+      {
+        bool TitleShown=false;
+        if (!Bare)
+        {
+          Arc.ViewComment();
+          mprintf(L"\n%s: %s",St(MListArchive),Arc.FileName);
+          mprintf(L"\n%s: ",St(MListDetails));
+          uint SetCount=0;
+          const wchar *Fmt=Arc.Format==RARFMT14 ? L"RAR 1.4":(Arc.Format==RARFMT15 ? L"RAR 4":L"RAR 5");
+          mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", Fmt);
+          if (Arc.Solid)
+            mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListSolid));
+          if (Arc.SFXSize>0)
+            mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListSFX));
+          if (Arc.Volume)
+            if (Arc.Format==RARFMT50)
+            {
+              // RAR 5.0 archives store the volume number in main header,
+              // so it is already available now.
+              if (SetCount++ > 0)
+                mprintf(L", ");
+              mprintf(St(MVolumeNumber),Arc.VolNumber+1);
+            }
+            else
+              mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListVolume));
+          if (Arc.Protected)
+            mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListRR));
+          if (Arc.Locked)
+            mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListLock));
+          if (Arc.Encrypted)
+            mprintf(L"%s%s", SetCount++ > 0 ? L", ":L"", St(MListEncHead));
+          mprintf(L"\n");
+        }
+
+        wchar VolNumText[50];
+        *VolNumText=0;
+        while(Arc.ReadHeader()>0)
+        {
+          HEADER_TYPE HeaderType=Arc.GetHeaderType();
+          if (HeaderType==HEAD_ENDARC)
+          {
+#ifndef SFX_MODULE
+            // Only RAR 1.5 archives store the volume number in end record.
+            if (Arc.EndArcHead.StoreVolNumber && Arc.Format==RARFMT15)
+              swprintf(VolNumText,ASIZE(VolNumText),L"%.10ls %u",St(MListVolume),Arc.VolNumber+1);
+#endif
+            if (Technical && ShowService)
+            {
+              mprintf(L"\n%12ls: %ls",St(MListService),L"EOF");
+              if (*VolNumText!=0)
+                mprintf(L"\n%12ls: %ls",St(MListFlags),VolNumText);
+              mprintf(L"\n");
+            }
+            break;
+          }
+          switch(HeaderType)
+          {
+            case HEAD_FILE:
+              FileMatched=Cmd->IsProcessFile(Arc.FileHead)!=0;
+              if (FileMatched)
+              {
+                ListFileHeader(Arc,Arc.FileHead,TitleShown,Verbose,Technical,Bare);
+                if (!Arc.FileHead.SplitBefore)
+                {
+                  TotalUnpSize+=Arc.FileHead.UnpSize;
+                  FileCount++;
+                }
+                TotalPackSize+=Arc.FileHead.PackSize;
+              }
+              break;
+            case HEAD_SERVICE:
+              if (FileMatched && !Bare)
+              {
+                if (Technical && ShowService)
+                  ListFileHeader(Arc,Arc.SubHead,TitleShown,Verbose,true,false);
+              }
+              break;
+          }
+          Arc.SeekToNext();
+        }
+        if (!Bare && !Technical)
+          if (TitleShown)
+          {
+            wchar UnpSizeText[20];
+            itoa(TotalUnpSize,UnpSizeText,ASIZE(UnpSizeText));
+        
+            wchar PackSizeText[20];
+            itoa(TotalPackSize,PackSizeText,ASIZE(PackSizeText));
+        
+            if (Verbose)
+            {
+              mprintf(L"\n----------- ---------  -------- ----- ---------- -----  --------  ----");
+              mprintf(L"\n%21ls %9ls %3d%%  %-27ls %u",UnpSizeText,
+                      PackSizeText,ToPercentUnlim(TotalPackSize,TotalUnpSize),
+                      VolNumText,FileCount);
+            }
+            else
+            {
+              mprintf(L"\n----------- ---------  ---------- -----  ----");
+              mprintf(L"\n%21ls  %-16ls  %u",UnpSizeText,VolNumText,FileCount);
+            }
+
+            SumFileCount+=FileCount;
+            SumUnpSize+=TotalUnpSize;
+            SumPackSize+=TotalPackSize;
+            mprintf(L"\n");
+          }
+          else
+            mprintf(St(MListNoFiles));
+
+        ArcCount++;
+
+#ifndef NOVOLUME
+        if (Cmd->VolSize!=0 && (Arc.FileHead.SplitAfter ||
+            Arc.GetHeaderType()==HEAD_ENDARC && Arc.EndArcHead.NextVolume) &&
+            MergeArchive(Arc,NULL,false,Cmd->Command[0]))
+          Arc.Seek(0,SEEK_SET);
+        else
+#endif
+          break;
+      }
+      else
+      {
+        if (Cmd->ArcNames.ItemsCount()<2 && !Bare)
+          mprintf(St(MNotRAR),Arc.FileName);
+        break;
+      }
+    }
+  }
+
+  // Clean user entered password. Not really required, just for extra safety.
+  if (Cmd->ManualPassword)
+    Cmd->Password.Clean();
+
+  if (ArcCount>1 && !Bare && !Technical)
+  {
+    wchar UnpSizeText[20],PackSizeText[20];
+    itoa(SumUnpSize,UnpSizeText,ASIZE(UnpSizeText));
+    itoa(SumPackSize,PackSizeText,ASIZE(PackSizeText));
+
+    if (Verbose)
+      mprintf(L"%21ls %9ls %3d%% %28ls %u",UnpSizeText,PackSizeText,
+              ToPercentUnlim(SumPackSize,SumUnpSize),L"",SumFileCount);
+    else
+      mprintf(L"%21ls %18s %lu",UnpSizeText,L"",SumFileCount);
+  }
+}
+
+
+enum LISTCOL_TYPE {
+  LCOL_NAME,LCOL_ATTR,LCOL_SIZE,LCOL_PACKED,LCOL_RATIO,LCOL_CSUM,LCOL_ENCR
+};
+
+
+void ListFileHeader(Archive &Arc,FileHeader &hd,bool &TitleShown,bool Verbose,bool Technical,bool Bare)
+{
+  wchar *Name=hd.FileName;
+  RARFORMAT Format=Arc.Format;
+
+  if (Bare)
+  {
+    mprintf(L"%s\n",Name);
+    return;
+  }
+
+  if (!TitleShown && !Technical)
+  {
+    if (Verbose)
+    {
+      mprintf(L"\n%ls",St(MListTitleV));
+      mprintf(L"\n----------- ---------  -------- ----- ---------- -----  --------  ----");
+    }
+    else
+    {
+      mprintf(L"\n%ls",St(MListTitleL));
+      mprintf(L"\n----------- ---------  ---------- -----  ----");
+    }
+    TitleShown=true;
+  }
+
+  wchar UnpSizeText[30],PackSizeText[30];
+  if (hd.UnpSize==INT64NDF)
+    wcscpy(UnpSizeText,L"?");
+  else
+    itoa(hd.UnpSize,UnpSizeText,ASIZE(UnpSizeText));
+  itoa(hd.PackSize,PackSizeText,ASIZE(PackSizeText));
+
+  wchar AttrStr[30];
+  if (hd.HeaderType==HEAD_SERVICE)
+    swprintf(AttrStr,ASIZE(AttrStr),L"%cB",hd.Inherited ? 'I' : '.');
+  else
+    ListFileAttr(hd.FileAttr,hd.HSType,AttrStr,ASIZE(AttrStr));
+
+  wchar RatioStr[10];
+
+  if (hd.SplitBefore && hd.SplitAfter)
+    wcscpy(RatioStr,L"<->");
+  else
+    if (hd.SplitBefore)
+      wcscpy(RatioStr,L"<--");
+    else
+      if (hd.SplitAfter)
+        wcscpy(RatioStr,L"-->");
+      else
+        swprintf(RatioStr,ASIZE(RatioStr),L"%d%%",ToPercentUnlim(hd.PackSize,hd.UnpSize));
+
+  wchar DateStr[50];
+  hd.mtime.GetText(DateStr,ASIZE(DateStr),Technical);
+
+  if (Technical)
+  {
+    mprintf(L"\n%12s: %s",St(MListName),Name);
+
+    bool FileBlock=hd.HeaderType==HEAD_FILE;
+
+    if (!FileBlock && Arc.SubHead.CmpName(SUBHEAD_TYPE_STREAM))
+    {
+      mprintf(L"\n%12ls: %ls",St(MListType),St(MListStream));
+      wchar StreamName[NM];
+      GetStreamNameNTFS(Arc,StreamName,ASIZE(StreamName));
+      mprintf(L"\n%12ls: %ls",St(MListTarget),StreamName);
+    }
+    else
+    {
+      const wchar *Type=St(FileBlock ? (hd.Dir ? MListDir:MListFile):MListService);
+    
+      if (hd.RedirType!=FSREDIR_NONE)
+        switch(hd.RedirType)
+        {
+          case FSREDIR_UNIXSYMLINK:
+            Type=St(MListUSymlink); break;
+          case FSREDIR_WINSYMLINK:
+            Type=St(MListWSymlink); break;
+          case FSREDIR_JUNCTION:
+            Type=St(MListJunction); break;
+          case FSREDIR_HARDLINK:
+            Type=St(MListHardlink); break;
+          case FSREDIR_FILECOPY:
+            Type=St(MListCopy);     break;
+        }
+      mprintf(L"\n%12ls: %ls",St(MListType),Type);
+      if (hd.RedirType!=FSREDIR_NONE)
+        if (Format==RARFMT15)
+        {
+          char LinkTargetA[NM];
+          if (Arc.FileHead.Encrypted)
+          {
+            // Link data are encrypted. We would need to ask for password
+            // and initialize decryption routine to display the link target.
+            strncpyz(LinkTargetA,"*<-?->",ASIZE(LinkTargetA));
+          }
+          else
+          {
+            int DataSize=(int)Min(hd.PackSize,ASIZE(LinkTargetA)-1);
+            Arc.Read(LinkTargetA,DataSize);
+            LinkTargetA[DataSize > 0 ? DataSize : 0] = 0;
+          }
+          wchar LinkTarget[NM];
+          CharToWide(LinkTargetA,LinkTarget,ASIZE(LinkTarget));
+          mprintf(L"\n%12ls: %ls",St(MListTarget),LinkTarget);
+        }
+        else
+          mprintf(L"\n%12ls: %ls",St(MListTarget),hd.RedirName);
+    }
+    if (!hd.Dir)
+    {
+      mprintf(L"\n%12ls: %ls",St(MListSize),UnpSizeText);
+      mprintf(L"\n%12ls: %ls",St(MListPacked),PackSizeText);
+      mprintf(L"\n%12ls: %ls",St(MListRatio),RatioStr);
+    }
+    if (hd.mtime.IsSet())
+      mprintf(L"\n%12ls: %ls",St(MListMtime),DateStr);
+    if (hd.ctime.IsSet())
+    {
+      hd.ctime.GetText(DateStr,ASIZE(DateStr),true);
+      mprintf(L"\n%12ls: %ls",St(MListCtime),DateStr);
+    }
+    if (hd.atime.IsSet())
+    {
+      hd.atime.GetText(DateStr,ASIZE(DateStr),true);
+      mprintf(L"\n%12ls: %ls",St(MListAtime),DateStr);
+    }
+    mprintf(L"\n%12ls: %ls",St(MListAttr),AttrStr);
+    if (hd.FileHash.Type==HASH_CRC32)
+      mprintf(L"\n%12ls: %8.8X",
+        hd.UseHashKey ? L"CRC32 MAC":hd.SplitAfter ? L"Pack-CRC32":L"CRC32",
+        hd.FileHash.CRC32);
+    if (hd.FileHash.Type==HASH_BLAKE2)
+    {
+      wchar BlakeStr[BLAKE2_DIGEST_SIZE*2+1];
+      BinToHex(hd.FileHash.Digest,BLAKE2_DIGEST_SIZE,NULL,BlakeStr,ASIZE(BlakeStr));
+      mprintf(L"\n%12ls: %ls",
+        hd.UseHashKey ? L"BLAKE2 MAC":hd.SplitAfter ? L"Pack-BLAKE2":L"BLAKE2",
+        BlakeStr);
+    }
+
+    const wchar *HostOS=L"";
+    if (Format==RARFMT50 && hd.HSType!=HSYS_UNKNOWN)
+      HostOS=hd.HSType==HSYS_WINDOWS ? L"Windows":L"Unix";
+    if (Format==RARFMT15)
+    {
+      static const wchar *RarOS[]={
+        L"DOS",L"OS/2",L"Windows",L"Unix",L"Mac OS",L"BeOS",L"WinCE",L"",L"",L""
+      };
+      if (hd.HostOS<ASIZE(RarOS))
+        HostOS=RarOS[hd.HostOS];
+    }
+    if (*HostOS!=0)
+      mprintf(L"\n%12ls: %ls",St(MListHostOS),HostOS);
+
+    mprintf(L"\n%12ls: RAR %ls(v%d) -m%d -md=%d%s",St(MListCompInfo),
+            Format==RARFMT15 ? L"3.0":L"5.0",hd.UnpVer,hd.Method,
+            hd.WinSize>=0x100000 ? hd.WinSize/0x100000:hd.WinSize/0x400,
+            hd.WinSize>=0x100000 ? L"M":L"K");
+
+    if (hd.Solid || hd.Encrypted)
+    {
+      mprintf(L"\n%12ls: ",St(MListFlags));
+      if (hd.Solid)
+        mprintf(L"%ls ",St(MListSolid));
+      if (hd.Encrypted)
+        mprintf(L"%ls ",St(MListEnc));
+    }
+
+    if (hd.Version)
+    {
+      uint Version=ParseVersionFileName(Name,false);
+      if (Version!=0)
+        mprintf(L"\n%12ls: %u",St(MListFileVer),Version);
+    }
+
+    if (hd.UnixOwnerSet)
+    {
+      mprintf(L"\n%12ls: ",L"Unix owner");
+      if (*hd.UnixOwnerName!=0)
+        mprintf(L"%ls:",GetWide(hd.UnixOwnerName));
+      if (*hd.UnixGroupName!=0)
+        mprintf(L"%ls",GetWide(hd.UnixGroupName));
+      if ((*hd.UnixOwnerName!=0 || *hd.UnixGroupName!=0) && (hd.UnixOwnerNumeric || hd.UnixGroupNumeric))
+        mprintf(L"  ");
+      if (hd.UnixOwnerNumeric)
+        mprintf(L"#%d:",hd.UnixOwnerID);
+      if (hd.UnixGroupNumeric)
+        mprintf(L"#%d:",hd.UnixGroupID);
+    }
+
+    mprintf(L"\n");
+    return;
+  }
+
+  mprintf(L"\n%c%10ls %9ls ",hd.Encrypted ? '*' : ' ',AttrStr,UnpSizeText);
+
+  if (Verbose)
+    mprintf(L"%9ls %4ls ",PackSizeText,RatioStr);
+
+  mprintf(L" %ls  ",DateStr);
+
+  if (Verbose)
+  {
+    if (hd.FileHash.Type==HASH_CRC32)
+      mprintf(L"%8.8X  ",hd.FileHash.CRC32);
+    else
+      if (hd.FileHash.Type==HASH_BLAKE2)
+      {
+        byte *S=hd.FileHash.Digest;
+        mprintf(L"%02x%02x..%02x  ",S[0],S[1],S[31]);
+      }
+      else
+        mprintf(L"????????  ");
+  }
+  mprintf(L"%ls",Name);
+}
+
+/*
+void ListSymLink(Archive &Arc)
+{
+  if (Arc.FileHead.HSType==HSYS_UNIX && (Arc.FileHead.FileAttr & 0xF000)==0xA000)
+    if (Arc.FileHead.Encrypted)
+    {
+      // Link data are encrypted. We would need to ask for password
+      // and initialize decryption routine to display the link target.
+      mprintf(L"\n%22ls %ls",L"-->",L"*<-?->");
+    }
+    else
+    {
+      char FileName[NM];
+      uint DataSize=(uint)Min(Arc.FileHead.PackSize,sizeof(FileName)-1);
+      Arc.Read(FileName,DataSize);
+      FileName[DataSize]=0;
+      mprintf(L"\n%22ls %ls",L"-->",GetWide(FileName));
+    }
+}
+*/
+
+void ListFileAttr(uint A,HOST_SYSTEM_TYPE HostType,wchar *AttrStr,size_t AttrSize)
+{
+  switch(HostType)
+  {
+    case HSYS_WINDOWS:
+      swprintf(AttrStr,AttrSize,L"%c%c%c%c%c%c%c",
+              (A & 0x2000)!=0 ? 'I' : '.',  // Not content indexed.
+              (A & 0x0800)!=0 ? 'C' : '.',  // Compressed.
+              (A & 0x0020)!=0 ? 'A' : '.',  // Archive.
+              (A & 0x0010)!=0 ? 'D' : '.',  // Directory.
+              (A & 0x0004)!=0 ? 'S' : '.',  // System.
+              (A & 0x0002)!=0 ? 'H' : '.',  // Hidden.
+              (A & 0x0001)!=0 ? 'R' : '.'); // Read-only.
+      break;
+    case HSYS_UNIX:
+      switch (A & 0xF000)
+      {
+        case 0x4000:
+          AttrStr[0]='d';
+          break;
+        case 0xA000:
+          AttrStr[0]='l';
+          break;
+        default:
+          AttrStr[0]='-';
+          break;
+      }
+      swprintf(AttrStr+1,AttrSize-1,L"%c%c%c%c%c%c%c%c%c",
+              (A & 0x0100) ? 'r' : '-',
+              (A & 0x0080) ? 'w' : '-',
+              (A & 0x0040) ? ((A & 0x0800)!=0 ? 's':'x'):((A & 0x0800)!=0 ? 'S':'-'),
+              (A & 0x0020) ? 'r' : '-',
+              (A & 0x0010) ? 'w' : '-',
+              (A & 0x0008) ? ((A & 0x0400)!=0 ? 's':'x'):((A & 0x0400)!=0 ? 'S':'-'),
+              (A & 0x0004) ? 'r' : '-',
+              (A & 0x0002) ? 'w' : '-',
+              (A & 0x0001) ? ((A & 0x200)!=0 ? 't' : 'x') : '-');
+      break;
+    case HSYS_UNKNOWN:
+      wcscpy(AttrStr,L"?");
+      break;
+  }
+}

reference/unrar/list.hpp

@@ -0,0 +1,6 @@
+#ifndef _RAR_LIST_
+#define _RAR_LIST_
+
+void ListArchive(CommandData *Cmd);
+
+#endif

reference/unrar/loclang.hpp

@@ -0,0 +1,381 @@
+#define   MYesNo             L"_Yes_No"
+#define   MYesNoAll          L"_Yes_No_All"
+#define   MYesNoAllQ         L"_Yes_No_All_nEver_Quit"
+#define   MYesNoAllRenQ      L"_Yes_No_All_nEver_Rename_Quit"
+#define   MContinueQuit      L"_Continue_Quit"
+#define   MRetryAbort        L"_Retry_Abort"
+#define   MCopyright         L"\nRAR %s   Copyright (c) 1993-%d Alexander Roshal   %d %s %d"
+#define   MRegTo             L"\nRegistered to %s\n"
+#define   MShare             L"\nTrial version             Type 'rar -?' for help\n"
+#define   MRegKeyWarning     L"\nAvailable license key is valid only for %s\n"
+#define   MUCopyright        L"\nUNRAR %s freeware      Copyright (c) 1993-%d Alexander Roshal\n"
+#define   MBeta              L"beta"
+#define   Mx86               L"x86"
+#define   Mx64               L"x64"
+#define   MMonthJan          L"Jan"
+#define   MMonthFeb          L"Feb"
+#define   MMonthMar          L"Mar"
+#define   MMonthApr          L"Apr"
+#define   MMonthMay          L"May"
+#define   MMonthJun          L"Jun"
+#define   MMonthJul          L"Jul"
+#define   MMonthAug          L"Aug"
+#define   MMonthSep          L"Sep"
+#define   MMonthOct          L"Oct"
+#define   MMonthNov          L"Nov"
+#define   MMonthDec          L"Dec"
+#define   MRARTitle1         L"\nUsage:     rar <command> -<switch 1> -<switch N> <archive> <files...>"
+#define   MUNRARTitle1       L"\nUsage:     unrar <command> -<switch 1> -<switch N> <archive> <files...>"
+#define   MRARTitle2         L"\n               <@listfiles...> <path_to_extract\\>"
+#define   MCHelpCmd          L"\n\n<Commands>"
+#define   MCHelpCmdA         L"\n  a             Add files to archive"
+#define   MCHelpCmdC         L"\n  c             Add archive comment"
+#define   MCHelpCmdCH        L"\n  ch            Change archive parameters"
+#define   MCHelpCmdCW        L"\n  cw            Write archive comment to file"
+#define   MCHelpCmdD         L"\n  d             Delete files from archive"
+#define   MCHelpCmdE         L"\n  e             Extract files without archived paths"
+#define   MCHelpCmdF         L"\n  f             Freshen files in archive"
+#define   MCHelpCmdI         L"\n  i[par]=<str>  Find string in archives"
+#define   MCHelpCmdK         L"\n  k             Lock archive"
+#define   MCHelpCmdL         L"\n  l[t[a],b]     List archive contents [technical[all], bare]"
+#define   MCHelpCmdM         L"\n  m[f]          Move to archive [files only]"
+#define   MCHelpCmdP         L"\n  p             Print file to stdout"
+#define   MCHelpCmdR         L"\n  r             Repair archive"
+#define   MCHelpCmdRC        L"\n  rc            Reconstruct missing volumes"
+#define   MCHelpCmdRN        L"\n  rn            Rename archived files"
+#define   MCHelpCmdRR        L"\n  rr[N]         Add data recovery record"
+#define   MCHelpCmdRV        L"\n  rv[N]         Create recovery volumes"
+#define   MCHelpCmdS         L"\n  s[name|-]     Convert archive to or from SFX"
+#define   MCHelpCmdT         L"\n  t             Test archive files"
+#define   MCHelpCmdU         L"\n  u             Update files in archive"
+#define   MCHelpCmdV         L"\n  v[t[a],b]     Verbosely list archive contents [technical[all],bare]"
+#define   MCHelpCmdX         L"\n  x             Extract files with full path"
+#define   MCHelpSw           L"\n\n<Switches>"
+#define   MCHelpSwm          L"\n  -             Stop switches scanning"
+#define   MCHelpSwAT         L"\n  @[+]          Disable [enable] file lists"
+#define   MCHelpSwAC         L"\n  ac            Clear Archive attribute after compression or extraction"
+#define   MCHelpSwAD         L"\n  ad            Append archive name to destination path"
+#define   MCHelpSwAG         L"\n  ag[format]    Generate archive name using the current date"
+#define   MCHelpSwAI         L"\n  ai            Ignore file attributes"
+#define   MCHelpSwAO         L"\n  ao            Add files with Archive attribute set"
+#define   MCHelpSwAP         L"\n  ap<path>      Set path inside archive"
+#define   MCHelpSwAS         L"\n  as            Synchronize archive contents"
+#define   MCHelpSwCm         L"\n  c-            Disable comments show"
+#define   MCHelpSwCFGm       L"\n  cfg-          Disable read configuration"
+#define   MCHelpSwCL         L"\n  cl            Convert names to lower case"
+#define   MCHelpSwCU         L"\n  cu            Convert names to upper case"
+#define   MCHelpSwDF         L"\n  df            Delete files after archiving"
+#define   MCHelpSwDH         L"\n  dh            Open shared files"
+#define   MCHelpSwDR         L"\n  dr            Delete files to Recycle Bin"
+#define   MCHelpSwDS         L"\n  ds            Disable name sort for solid archive"
+#define   MCHelpSwDW         L"\n  dw            Wipe files after archiving"
+#define   MCHelpSwEa         L"\n  e[+]<attr>    Set file exclude and include attributes"
+#define   MCHelpSwED         L"\n  ed            Do not add empty directories"
+#define   MCHelpSwEN         L"\n  en            Do not put 'end of archive' block"
+#define   MCHelpSwEP         L"\n  ep            Exclude paths from names"
+#define   MCHelpSwEP1        L"\n  ep1           Exclude base directory from names"
+#define   MCHelpSwEP2        L"\n  ep2           Expand paths to full"
+#define   MCHelpSwEP3        L"\n  ep3           Expand paths to full including the drive letter"
+#define   MCHelpSwF          L"\n  f             Freshen files"
+#define   MCHelpSwHP         L"\n  hp[password]  Encrypt both file data and headers"
+#define   MCHelpSwHT         L"\n  ht[b|c]       Select hash type [BLAKE2,CRC32] for file checksum"
+#define   MCHelpSwIDP        L"\n  id[c,d,p,q]   Disable messages"
+#define   MCHelpSwIEML       L"\n  ieml[addr]    Send archive by email"
+#define   MCHelpSwIERR       L"\n  ierr          Send all messages to stderr"
+#define   MCHelpSwILOG       L"\n  ilog[name]    Log errors to file (registered versions only)"
+#define   MCHelpSwINUL       L"\n  inul          Disable all messages"
+#define   MCHelpSwIOFF       L"\n  ioff          Turn PC off after completing an operation"
+#define   MCHelpSwISND       L"\n  isnd          Enable sound"
+#define   MCHelpSwIVER       L"\n  iver          Display the version number"
+#define   MCHelpSwK          L"\n  k             Lock archive"
+#define   MCHelpSwKB         L"\n  kb            Keep broken extracted files"
+#define   MCHelpSwLog        L"\n  log[f][=name] Write names to log file"
+#define   MCHelpSwMn         L"\n  m<0..5>       Set compression level (0-store...3-default...5-maximal)"
+#define   MCHelpSwMA         L"\n  ma[4|5]       Specify a version of archiving format"
+#define   MCHelpSwMC         L"\n  mc<par>       Set advanced compression parameters"
+#define   MCHelpSwMD         L"\n  md<n>[k,m,g]  Dictionary size in KB, MB or GB"
+#define   MCHelpSwMS         L"\n  ms[ext;ext]   Specify file types to store"
+#define   MCHelpSwMT         L"\n  mt<threads>   Set the number of threads"
+#define   MCHelpSwN          L"\n  n<file>       Additionally filter included files"
+#define   MCHelpSwNa         L"\n  n@            Read additional filter masks from stdin"
+#define   MCHelpSwNal        L"\n  n@<list>      Read additional filter masks from list file"
+#define   MCHelpSwO          L"\n  o[+|-]        Set the overwrite mode"
+#define   MCHelpSwOC         L"\n  oc            Set NTFS Compressed attribute"
+#define   MCHelpSwOH         L"\n  oh            Save hard links as the link instead of the file"
+#define   MCHelpSwOI         L"\n  oi[0-4][:min] Save identical files as references"
+#define   MCHelpSwOL         L"\n  ol[a]         Process symbolic links as the link [absolute paths]"
+#define   MCHelpSwONI        L"\n  oni           Allow potentially incompatible names"
+#define   MCHelpSwOR         L"\n  or            Rename files automatically"
+#define   MCHelpSwOS         L"\n  os            Save NTFS streams"
+#define   MCHelpSwOW         L"\n  ow            Save or restore file owner and group"
+#define   MCHelpSwP          L"\n  p[password]   Set password"
+#define   MCHelpSwPm         L"\n  p-            Do not query password"
+#define   MCHelpSwQO         L"\n  qo[-|+]       Add quick open information [none|force]"
+#define   MCHelpSwR          L"\n  r             Recurse subdirectories"
+#define   MCHelpSwRm         L"\n  r-            Disable recursion"
+#define   MCHelpSwR0         L"\n  r0            Recurse subdirectories for wildcard names only"
+#define   MCHelpSwRI         L"\n  ri<P>[:<S>]   Set priority (0-default,1-min..15-max) and sleep time in ms"
+#define   MCHelpSwRR         L"\n  rr[N]         Add data recovery record"
+#define   MCHelpSwRV         L"\n  rv[N]         Create recovery volumes"
+#define   MCHelpSwS          L"\n  s[<N>,v[-],e] Create solid archive"
+#define   MCHelpSwSm         L"\n  s-            Disable solid archiving"
+#define   MCHelpSwSC         L"\n  sc<chr>[obj]  Specify the character set"
+#define   MCHelpSwSFX        L"\n  sfx[name]     Create SFX archive"
+#define   MCHelpSwSI         L"\n  si[name]      Read data from standard input (stdin)"
+#define   MCHelpSwSL         L"\n  sl<size>      Process files with size less than specified"
+#define   MCHelpSwSM         L"\n  sm<size>      Process files with size more than specified"
+#define   MCHelpSwT          L"\n  t             Test files after archiving"
+#define   MCHelpSwTK         L"\n  tk            Keep original archive time"
+#define   MCHelpSwTL         L"\n  tl            Set archive time to latest file"
+#define   MCHelpSwTN         L"\n  tn<time>      Process files newer than <time>"
+#define   MCHelpSwTO         L"\n  to<time>      Process files older than <time>"
+#define   MCHelpSwTA         L"\n  ta<date>      Process files modified after <date> in YYYYMMDDHHMMSS format"
+#define   MCHelpSwTB         L"\n  tb<date>      Process files modified before <date> in YYYYMMDDHHMMSS format"
+#define   MCHelpSwTS         L"\n  ts[m|c|a]     Save or restore file time (modification, creation, access)"
+#define   MCHelpSwU          L"\n  u             Update files"
+#define   MCHelpSwV          L"\n  v             Create volumes with size autodetection or list all volumes"
+#define   MCHelpSwVUnr       L"\n  v             List all volumes"
+#define   MCHelpSwVn         L"\n  v<size>[k,b]  Create volumes with size=<size>*1000 [*1024, *1]"
+#define   MCHelpSwVD         L"\n  vd            Erase disk contents before creating volume"
+#define   MCHelpSwVER        L"\n  ver[n]        File version control"
+#define   MCHelpSwVN         L"\n  vn            Use the old style volume naming scheme"
+#define   MCHelpSwVP         L"\n  vp            Pause before each volume"
+#define   MCHelpSwW          L"\n  w<path>       Assign work directory"
+#define   MCHelpSwX          L"\n  x<file>       Exclude specified file"
+#define   MCHelpSwXa         L"\n  x@            Read file names to exclude from stdin"
+#define   MCHelpSwXal        L"\n  x@<list>      Exclude files listed in specified list file"
+#define   MCHelpSwY          L"\n  y             Assume Yes on all queries"
+#define   MCHelpSwZ          L"\n  z[file]       Read archive comment from file"
+#define   MBadArc            L"\nERROR: Bad archive %s\n"
+#define   MAskPsw            L"Enter password (will not be echoed)"
+#define   MAskPswFor         L"\nEnter password (will not be echoed) for %s: "
+#define   MReAskPsw          L"\nReenter password: "
+#define   MNotMatchPsw       L"\nERROR: Passwords do not match\n"
+#define   MErrWrite          L"Write error in the file %s"
+#define   MErrRead           L"Read error in the file %s"
+#define   MErrSeek           L"Seek error in the file %s"
+#define   MErrFClose         L"Cannot close the file %s"
+#define   MErrOutMem         L"Not enough memory"
+#define   MErrBrokenArc      L"Corrupt archive - use 'Repair' command"
+#define   MProgAborted       L"Program aborted"
+#define   MErrRename         L"\nCannot rename %s to %s"
+#define   MAbsNextVol        L"\nCannot find volume %s"
+#define   MBreak             L"\nUser break\n"
+#define   MAskCreatVol       L"\nCreate next volume ?"
+#define   MAskNextDisk       L"\nDisk full. Insert next"
+#define   MCreatVol          L"\n\nCreating %sarchive %s\n"
+#define   MAskNextVol        L"\nInsert disk with %s"
+#define   MTestVol           L"\n\nTesting archive %s\n"
+#define   MExtrVol           L"\n\nExtracting from %s\n"
+#define   MConverting        L"\nConverting %s"
+#define   MCvtToSFX          L"\nConvert archives to SFX"
+#define   MCvtFromSFX        L"\nRemoving SFX module"
+#define   MNotSFX            L"\n%s is not SFX archive"
+#define   MNotRAR            L"\n%s is not RAR archive"
+#define   MNotFirstVol       L"\n%s is not the first volume"
+#define   MCvtOldFormat      L"\n%s - cannot convert to SFX archive with old format"
+#define   MCannotCreate      L"\nCannot create %s"
+#define   MCannotOpen        L"\nCannot open %s"
+#define   MUnknownMeth       L"\nUnknown method in %s"
+#define   MNewRarFormat      L"\nUnsupported archive format. Please update RAR to a newer version."
+#define   MOk                L" OK"
+#define   MDone              L"\nDone"
+#define   MLockingArc        L"\nLocking archive"
+#define   MNotMdfOld         L"\n\nERROR: Cannot modify old format archive"
+#define   MNotMdfLock        L"\n\nERROR: Locked archive"
+#define   MNotMdfVol         L"\n\nERROR: Cannot modify volume"
+#define   MPackAskReg        L"\nEvaluation copy. Please register.\n"
+#define   MCreateArchive     L"\nCreating %sarchive %s\n"
+#define   MUpdateArchive     L"\nUpdating %sarchive %s\n"
+#define   MAddSolid          L"solid "
+#define   MAddFile           L"\nAdding    %-58s     "
+#define   MUpdFile           L"\nUpdating  %-58s     "
+#define   MAddPoints         L"\n...       %-58s     "
+#define   MMoveDelFiles      L"\n\nDeleting files %s..."
+#define   MMoveDelDirs       L"and directories"
+#define   MMoveDelFile       L"\nDeleting %-30s"
+#define   MMoveDeleted       L"    deleted"
+#define   MMoveNotDeleted    L"    NOT DELETED"
+#define   MClearAttrib       L"\n\nClearing attributes..."
+#define   MMoveDelDir        L"\nDeleting directory %-30s"
+#define   MWarErrFOpen       L"\nWARNING: Cannot open %d %s"
+#define   MErrOpenFiles      L"files"
+#define   MErrOpenFile       L"file"
+#define   MAddNoFiles        L"\nWARNING: No files"
+#define   MMdfEncrSol        L"\n%s: encrypted"
+#define   MCannotMdfEncrSol  L"\nCannot modify solid archive containing encrypted files"
+#define   MAddAnalyze        L"\nAnalyzing archived files: "
+#define   MRepacking         L"\nRepacking archived files: "
+#define   MCRCFailed         L"\n%-20s - checksum error"
+#define   MExtrTest          L"\n\nTesting archive %s\n"
+#define   MExtracting        L"\n\nExtracting from %s\n"
+#define   MUseCurPsw         L"\n%s - use current password ?"
+#define   MCreatDir          L"\nCreating    %-56s"
+#define   MExtrSkipFile      L"\nSkipping    %-56s"
+#define   MExtrTestFile      L"\nTesting     %-56s"
+#define   MExtrFile          L"\nExtracting  %-56s"
+#define   MExtrPoints        L"\n...         %-56s"
+#define   MExtrErrMkDir      L"\nCannot create directory %s"
+#define   MExtrPrinting      L"\n------ Printing %s\n\n"
+#define   MEncrBadCRC        L"\nChecksum error in the encrypted file %s. Corrupt file or wrong password."
+#define   MExtrNoFiles       L"\nNo files to extract"
+#define   MExtrAllOk         L"\nAll OK"
+#define   MExtrTotalErr      L"\nTotal errors: %ld"
+#define   MAskReplace        L"\n\nWould you like to replace the existing file %s\n%6s bytes, modified on %s\nwith a new one\n%6s bytes, modified on %s\n"
+#define   MAskOverwrite      L"\nOverwrite %s ?"
+#define   MAskNewName        L"\nEnter new name: "
+#define   MHeaderBroken      L"\nCorrupt header is found"
+#define   MMainHeaderBroken  L"\nMain archive header is corrupt"
+#define   MLogFileHead       L"\n%s - the file header is corrupt"
+#define   MLogProtectHead    L"The data recovery header is corrupt"
+#define   MReadStdinCmt      L"\nReading comment from stdin\n"
+#define   MReadCommFrom      L"\nReading comment from %s"
+#define   MDelComment        L"\nDeleting comment from %s"
+#define   MAddComment        L"\nAdding comment to %s"
+#define   MFCommAdd          L"\nAdding file comments"
+#define   MAskFComm          L"\n\nReading comment for %s : %s from stdin\n"
+#define   MLogCommBrk        L"\nThe archive comment is corrupt"
+#define   MCommAskCont       L"\nPress 'Enter' to continue or 'Q' to quit:"
+#define   MWriteCommTo       L"\nWrite comment to %s"
+#define   MCommNotPres       L"\nComment is not present"
+#define   MDelFrom           L"\nDeleting from %s"
+#define   MDeleting          L"\nDeleting %s"
+#define   MEraseArc          L"\nErasing empty archive %s"
+#define   MNoDelFiles        L"\nNo files to delete"
+#define   MLogTitle          L"--------  %2d %s %d, archive %s"
+#define   MPathTooLong       L"\nERROR: Path too long\n"
+#define   MListArchive       L"Archive"
+#define   MListDetails       L"Details"
+#define   MListSolid         L"solid"
+#define   MListSFX           L"SFX"
+#define   MListVolume        L"volume"
+#define   MListRR            L"recovery record"
+#define   MListLock          L"lock"
+#define   MListEnc           L"encrypted"
+#define   MListEncHead       L"encrypted headers"
+#define   MListTitleL        L" Attributes      Size     Date    Time   Name"
+#define   MListTitleV        L" Attributes      Size    Packed Ratio    Date    Time   Checksum  Name"
+#define   MListName          L"Name"
+#define   MListType          L"Type"
+#define   MListFile          L"File"
+#define   MListDir           L"Directory"
+#define   MListUSymlink      L"Unix symbolic link"
+#define   MListWSymlink      L"Windows symbolic link"
+#define   MListJunction      L"NTFS junction point"
+#define   MListHardlink      L"Hard link"
+#define   MListCopy          L"File reference"
+#define   MListStream        L"NTFS alternate data stream"
+#define   MListTarget        L"Target"
+#define   MListSize          L"Size"
+#define   MListPacked        L"Packed size"
+#define   MListRatio         L"Ratio"
+#define   MListMtime         L"mtime"
+#define   MListCtime         L"ctime"
+#define   MListAtime         L"atime"
+#define   MListAttr          L"Attributes"
+#define   MListFlags         L"Flags"
+#define   MListCompInfo      L"Compression"
+#define   MListHostOS        L"Host OS"
+#define   MListFileVer       L"File version"
+#define   MListService       L"Service"
+#define   MListUOHead        L"\n   Unix Owner/Group data:    %-14s %-14s"
+#define   MListNTACLHead     L"\n   NTFS security data"
+#define   MListStrmHead      L"\n   NTFS stream: %s"
+#define   MListUnkHead       L"\n   Unknown subheader type: 0x%04x"
+#define   MFileComment       L"\nComment: "
+#define   MYes               L"Yes"
+#define   MNo                L"No"
+#define   MListNoFiles       L"  0 files\n"
+#define   MRprReconstr       L"\nReconstructing %s"
+#define   MRprBuild          L"\nBuilding %s"
+#define   MRprOldFormat      L"\nCannot repair archive with old format"
+#define   MRprFind           L"\nFound  %s"
+#define   MRprAskIsSol       L"\nThe archive header is corrupt. Mark archive as solid ?"
+#define   MRprNoFiles        L"\nNo files found"
+#define   MLogUnexpEOF       L"\nUnexpected end of archive"
+#define   MRepAskReconst     L"\nReconstruct archive structure ?"
+#define   MRecScanning       L"\nScanning..."
+#define   MRecRNotFound      L"\nData recovery record not found"
+#define   MRecRFound         L"\nData recovery record found"
+#define   MRecSecDamage      L"\nSector %ld (offsets %lX...%lX) damaged"
+#define   MRecCorrected      L" - data recovered"
+#define   MRecFailed         L" - cannot recover data"
+#define   MAddRecRec         L"\nAdding data recovery record"
+#define   MEraseForVolume    L"\n\nErasing contents of drive %c:\n"
+#define   MGetOwnersError    L"\nWARNING: Cannot get %s owner and group\n"
+#define   MErrGetOwnerID     L"\nWARNING: Cannot get owner %s ID\n"
+#define   MErrGetGroupID     L"\nWARNING: Cannot get group %s ID\n"
+#define   MOwnersBroken      L"\nERROR: %s group and owner data are corrupt\n"
+#define   MSetOwnersError    L"\nWARNING: Cannot set %s owner and group\n"
+#define   MErrLnkRead        L"\nWARNING: Cannot read symbolic link %s"
+#define   MSymLinkExists     L"\nWARNING: Symbolic link %s already exists"
+#define   MAskRetryCreate    L"\nCannot create %s. Retry ?"
+#define   MListMACHead1      L"\n Mac OS file type:  %c%c%c%c  ; "
+#define   MListMACHead2      L"file creator:  %c%c%c%c\n"
+#define   MDataBadCRC        L"\n%-20s : packed data checksum error in volume %s"
+#define   MFileRO            L"\n%s is read-only"
+#define   MACLGetError       L"\nWARNING: Cannot get %s security data\n"
+#define   MACLSetError       L"\nWARNING: Cannot set %s security data\n"
+#define   MACLBroken         L"\nERROR: %s security data are corrupt\n"
+#define   MACLUnknown        L"\nWARNING: Unknown format of %s security data\n"
+#define   MStreamBroken      L"\nERROR: %s stream data are corrupt\n"
+#define   MStreamUnknown     L"\nWARNING: Unknown format of %s stream data\n"
+#define   MInvalidName       L"\nERROR: Invalid file name %s"
+#define   MProcessArc        L"\n\nProcessing archive %s"
+#define   MCorrectingName    L"\nWARNING: Attempting to correct the invalid file name"
+#define   MUnpCannotMerge    L"\nWARNING: You need to start extraction from a previous volume to unpack %s"
+#define   MUnknownOption     L"\nERROR: Unknown option: %s"
+#define   MSubHeadCorrupt    L"\nERROR: Corrupt data header found, ignored"
+#define   MSubHeadUnknown    L"\nWARNING: Unknown data header format, ignored"
+#define   MSubHeadDataCRC    L"\nERROR: Corrupt %s data block"
+#define   MSubHeadType       L"\nData header type: %s"
+#define   MScanError         L"\nCannot read contents of %s"
+#define   MNotVolume         L"\n%s is not volume"
+#define   MRecVolDiffSets    L"\nERROR: %s and %s belong to different sets"
+#define   MRecVolMissing     L"\n%d volumes missing"
+#define   MRecVolFound       L"\n%d recovery volumes found"
+#define   MRecVolAllExist    L"\nNothing to reconstruct"
+#define   MRecVolCannotFix   L"\nReconstruction impossible"
+#define   MReconstructing    L"\nReconstructing..."
+#define   MCreating          L"\nCreating %s"
+#define   MRenaming          L"\nRenaming %s to %s"
+#define   MNTFSRequired      L"\nWrite error: only NTFS file system supports files larger than 4 GB"
+#define   MFAT32Size         L"\nWARNING: FAT32 file system does not support 4 GB or larger files"
+#define   MErrChangeAttr     L"\nWARNING: Cannot change attributes of %s"
+#define   MWrongSFXVer       L"\nERROR: default SFX module does not support RAR %d.%d archives"
+#define   MCannotEncName     L"\nCannot encrypt archive already containing encrypted files"
+#define   MCannotEmail       L"\nCannot email the file %s"
+#define   MCopyrightS        L"\nRAR SFX archive" 
+#define   MSHelpCmd          L"\n\n<Commands>" 
+#define   MSHelpCmdE         L"\n  -x      Extract from archive (default)" 
+#define   MSHelpCmdT         L"\n  -t      Test archive files" 
+#define   MSHelpCmdV         L"\n  -v      Verbosely list contents of archive" 
+#define   MRecVolLimit       L"\nTotal number of usual and recovery volumes must not exceed %d"
+#define   MVolumeNumber      L"volume %d"
+#define   MCannotDelete      L"\nCannot delete %s"
+#define   MCalcCRC           L"\nCalculating the checksum"
+#define   MTooLargeSFXArc    L"\nWARNING: Too large SFX archive. Windows cannot run the executable file exceeding 4 GB."
+#define   MCalcCRCAllVol     L"\nCalculating checksums of all volumes."
+#define   MNotEnoughDisk     L"\nERROR: Not enough disk space for %s."
+#define   MNewerRAR          L"\nYou may need a newer version of RAR."
+#define   MUnkEncMethod      L"\nUnknown encryption method in %s"
+#define   MWrongPassword     L"\nThe specified password is incorrect."
+#define   MRepairing         L"\nRepairing"
+#define   MAreaDamaged       L"\nCorrupt %d bytes at %08x %08x"
+#define   MBlocksRecovered   L"\n%d blocks recovered."
+#define   MRRDamaged         L"\nRecovery record is corrupt."
+#define   MTestingRR         L"\nTesting the recovery record"
+#define   MFailed            L"Failed"
+#define   MIncompatSwitch    L"\n%s switch is not supported for RAR %d.x archive format."
+#define   MSearchDupFiles    L"\nSearching for identical files"
+#define   MNumFound          L"%d found."
+#define   MUnknownExtra      L"\nUnknown extra field in %s."
+#define   MCorruptExtra      L"\nCorrupt %s extra field in %s."
+#define   MCopyError         L"\nCannot copy %s to %s."
+#define   MCopyErrorHint     L"\nYou need to unpack the entire archive to create file reference entries."
+#define   MCopyingData       L"\nCopying data"
+#define   MErrCreateLnkS     L"\nCannot create symbolic link %s"
+#define   MErrCreateLnkH     L"\nCannot create hard link %s"
+#define   MNeedAdmin         L"\nYou may need to run RAR as administrator"
+#define   MDictOutMem        L"\nNot enough memory for %d MB compression dictionary, changed to %d MB."
+#define   MUseSmalllerDict   L"\nPlease use a smaller compression dictionary."

reference/unrar/log.cpp

@@ -0,0 +1,37 @@
+#include "rar.hpp"
+
+
+static wchar LogName[NM];
+static RAR_CHARSET LogCharset=RCH_DEFAULT;
+
+void InitLogOptions(const wchar *LogFileName,RAR_CHARSET CSet)
+{
+  wcsncpyz(LogName,LogFileName,ASIZE(LogName));
+  LogCharset=CSet;
+}
+
+
+#ifndef SILENT
+void Log(const wchar *ArcName,const wchar *fmt,...)
+{
+  // Preserve the error code for possible following system error message.
+  int Code=ErrHandler.GetSystemErrorCode();
+
+  uiAlarm(UIALARM_ERROR);
+
+  // This buffer is for format string only, not for entire output,
+  // so it can be short enough.
+  wchar fmtw[1024];
+  PrintfPrepareFmt(fmt,fmtw,ASIZE(fmtw));
+
+  safebuf wchar Msg[2*NM+1024];
+  va_list arglist;
+  va_start(arglist,fmt);
+  vswprintf(Msg,ASIZE(Msg),fmtw,arglist);
+  va_end(arglist);
+  eprintf(L"%ls",Msg);
+  ErrHandler.SetSystemErrorCode(Code);
+}
+#endif
+
+

reference/unrar/log.hpp

@@ -0,0 +1,12 @@
+#ifndef _RAR_LOG_
+#define _RAR_LOG_
+
+void InitLogOptions(const wchar *LogFileName,RAR_CHARSET CSet);
+
+#ifdef SILENT
+inline void Log(const wchar *ArcName,const wchar *fmt,...) {}
+#else
+void Log(const wchar *ArcName,const wchar *fmt,...);
+#endif
+
+#endif

reference/unrar/makefile

@@ -0,0 +1,173 @@
+#
+# Makefile for UNIX - unrar
+
+# Linux using GCC
+CXX=c++
+CXXFLAGS=-O2
+LIBFLAGS=-fPIC
+DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DRAR_SMP
+STRIP=strip
+AR=ar
+LDFLAGS=-pthread
+DESTDIR=/usr
+
+# Linux using LCC
+#CXX=lcc
+#CXXFLAGS=-O2
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# CYGWIN using GCC
+#CXX=c++
+#CXXFLAGS=-O2
+#LIBFLAGS=
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DRAR_SMP
+#STRIP=strip
+#AR=ar
+#LDFLAGS=-pthread
+#DESTDIR=/usr
+
+# HP UX using aCC
+#CXX=aCC
+#CXXFLAGS=-AA +O2 +Onolimit
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# IRIX using GCC
+#CXX=g++
+#CXXFLAGS=-O2 
+#DEFINES=-DBIG_ENDIAN -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_BSD_COMPAT -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# IRIX using MIPSPro (experimental)
+#CXX=CC
+#CXXFLAGS=-O2 -mips3 -woff 1234,1156,3284 -LANG:std
+#DEFINES=-DBIG_ENDIAN -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_BSD_COMPAT -Dint64=int64_t
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# AIX using xlC (IBM VisualAge C++ 5.0)
+#CXX=xlC
+#CXXFLAGS=-O -qinline -qro -qroconst -qmaxmem=16384 -qcpluscmt
+#DEFINES=-D_LARGE_FILES -D_LARGE_FILE_API
+#LIBS=-lbsd
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# Solaris using CC
+#CXX=CC
+#CXXFLAGS=-fast -erroff=wvarhidemem
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+#STRIP=strip
+#AR=ar
+#DESTDIR=/usr
+
+# Solaris using GCC (optimized for UltraSPARC 1 CPU)
+#CXX=g++
+#CXXFLAGS=-O3 -mcpu=v9 -mtune=ultrasparc -m32
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+#STRIP=/usr/ccs/bin/strip
+#AR=/usr/ccs/bin/ar
+#DESTDIR=/usr
+
+# Tru64 5.1B using GCC3
+#CXX=g++
+#CXXFLAGS=-O2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_XOPEN_SOURCE=500
+#STRIP=strip
+#AR=ar
+#LDFLAGS=-rpath /usr/local/gcc/lib
+#DESTDIR=/usr
+
+# Tru64 5.1B using DEC C++
+#CXX=cxx
+#CXXFLAGS=-O4 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dint64=long
+#STRIP=strip
+#AR=ar
+#LDFLAGS=
+#DESTDIR=/usr
+
+# QNX 6.x using GCC
+#CXX=g++
+#CXXFLAGS=-O2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fexceptions
+#STRIP=strip
+#AR=ar
+#LDFLAGS=-fexceptions
+#DESTDIR=/usr
+
+# Cross-compile
+# Linux using arm-linux-g++
+#CXX=arm-linux-g++
+#CXXFLAGS=-O2
+#DEFINES=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+#STRIP=arm-linux-strip
+#AR=arm-linux-ar
+#LDFLAGS=-static
+#DESTDIR=/usr
+
+##########################
+
+COMPILE=$(CXX) $(CPPFLAGS) $(CXXFLAGS) $(DEFINES)
+LINK=$(CXX)
+
+WHAT=UNRAR
+
+UNRAR_OBJ=filestr.o recvol.o rs.o scantree.o qopen.o
+LIB_OBJ=filestr.o scantree.o dll.o qopen.o
+
+OBJECTS=rar.o strlist.o strfn.o pathfn.o smallfn.o global.o file.o filefn.o filcreat.o \
+	archive.o arcread.o unicode.o system.o isnt.o crypt.o crc.o rawread.o encname.o \
+	resource.o match.o timefn.o rdwrfn.o consio.o options.o errhnd.o rarvm.o secpassword.o \
+	rijndael.o getbits.o sha1.o sha256.o blake2s.o hash.o extinfo.o extract.o volume.o \
+  list.o find.o unpack.o headers.o threadpool.o rs16.o cmddata.o ui.o
+
+.cpp.o:
+	$(COMPILE) -D$(WHAT) -c $<
+
+all:	unrar
+
+install:	install-unrar
+
+uninstall:	uninstall-unrar
+
+clean:
+	@rm -f *.o *.bak *~
+
+unrar:	clean $(OBJECTS) $(UNRAR_OBJ)
+	@rm -f unrar
+	$(LINK) -o unrar $(LDFLAGS) $(OBJECTS) $(UNRAR_OBJ) $(LIBS)	
+	$(STRIP) unrar
+
+sfx:	WHAT=SFX_MODULE
+sfx:	clean $(OBJECTS)
+	@rm -f default.sfx
+	$(LINK) -o default.sfx $(LDFLAGS) $(OBJECTS)
+	$(STRIP) default.sfx
+
+lib:	WHAT=RARDLL
+lib:	CXXFLAGS+=$(LIBFLAGS)
+lib:	clean $(OBJECTS) $(LIB_OBJ)
+	@rm -f libunrar.so
+	@rm -f libunrar.a
+	$(LINK) -shared -o libunrar.so $(LDFLAGS) $(OBJECTS) $(LIB_OBJ)
+	$(AR) rcs libunrar.a $(OBJECTS) $(LIB_OBJ)
+
+install-unrar:
+			install -D unrar $(DESTDIR)/bin/unrar
+
+uninstall-unrar:
+			rm -f $(DESTDIR)/bin/unrar
+
+install-lib:
+		install libunrar.so $(DESTDIR)/lib
+		install libunrar.a $(DESTDIR)/lib
+
+uninstall-lib:
+		rm -f $(DESTDIR)/lib/libunrar.so

reference/unrar/match.cpp

@@ -0,0 +1,145 @@
+#include "rar.hpp"
+
+static bool match(const wchar *pattern,const wchar *string,bool ForceCase);
+static int mwcsicompc(const wchar *Str1,const wchar *Str2,bool ForceCase);
+static int mwcsnicompc(const wchar *Str1,const wchar *Str2,size_t N,bool ForceCase);
+
+inline uint touppercw(uint ch,bool ForceCase)
+{
+  if (ForceCase)
+    return ch;
+#if defined(_UNIX)
+  return ch;
+#else
+  return toupperw(ch);
+#endif
+}
+
+
+bool CmpName(const wchar *Wildcard,const wchar *Name,int CmpMode)
+{
+  bool ForceCase=(CmpMode&MATCH_FORCECASESENSITIVE)!=0;
+
+  CmpMode&=MATCH_MODEMASK;
+
+  if (CmpMode!=MATCH_NAMES)
+  {
+    size_t WildLength=wcslen(Wildcard);
+    if (CmpMode!=MATCH_EXACT && CmpMode!=MATCH_EXACTPATH &&
+        mwcsnicompc(Wildcard,Name,WildLength,ForceCase)==0)
+    {
+      // For all modes except MATCH_NAMES, MATCH_EXACT and MATCH_EXACTPATH
+      // "path1" mask must match "path1\path2\filename.ext" and "path1" names.
+      wchar NextCh=Name[WildLength];
+      if (NextCh==L'\\' || NextCh==L'/' || NextCh==0)
+        return(true);
+    }
+
+    // Nothing more to compare for MATCH_SUBPATHONLY.
+    if (CmpMode==MATCH_SUBPATHONLY)
+      return(false);
+
+    wchar Path1[NM],Path2[NM];
+    GetFilePath(Wildcard,Path1,ASIZE(Path1));
+    GetFilePath(Name,Path2,ASIZE(Path2));
+
+    if ((CmpMode==MATCH_EXACT || CmpMode==MATCH_EXACTPATH) &&
+        mwcsicompc(Path1,Path2,ForceCase)!=0)
+      return(false);
+    if (CmpMode==MATCH_SUBPATH || CmpMode==MATCH_WILDSUBPATH)
+      if (IsWildcard(Path1))
+        return(match(Wildcard,Name,ForceCase));
+      else
+        if (CmpMode==MATCH_SUBPATH || IsWildcard(Wildcard))
+        {
+          if (*Path1 && mwcsnicompc(Path1,Path2,wcslen(Path1),ForceCase)!=0)
+            return(false);
+        }
+        else
+          if (mwcsicompc(Path1,Path2,ForceCase)!=0)
+            return(false);
+  }
+  wchar *Name1=PointToName(Wildcard);
+  wchar *Name2=PointToName(Name);
+
+  // Always return false for RAR temporary files to exclude them
+  // from archiving operations.
+  if (mwcsnicompc(L"__rar_",Name2,6,false)==0)
+    return(false);
+
+  if (CmpMode==MATCH_EXACT)
+    return(mwcsicompc(Name1,Name2,ForceCase)==0);
+
+  return(match(Name1,Name2,ForceCase));
+}
+
+
+bool match(const wchar *pattern,const wchar *string,bool ForceCase)
+{
+  for (;; ++string)
+  {
+    wchar stringc=touppercw(*string,ForceCase);
+    wchar patternc=touppercw(*pattern++,ForceCase);
+    switch (patternc)
+    {
+      case 0:
+        return(stringc==0);
+      case '?':
+        if (stringc == 0)
+          return(false);
+        break;
+      case '*':
+        if (*pattern==0)
+          return(true);
+        if (*pattern=='.')
+        {
+          if (pattern[1]=='*' && pattern[2]==0)
+            return(true);
+          const wchar *dot=wcschr(string,'.');
+          if (pattern[1]==0)
+            return (dot==NULL || dot[1]==0);
+          if (dot!=NULL)
+          {
+            string=dot;
+            if (wcspbrk(pattern,L"*?")==NULL && wcschr(string+1,'.')==NULL)
+              return(mwcsicompc(pattern+1,string+1,ForceCase)==0);
+          }
+        }
+
+        while (*string)
+          if (match(pattern,string++,ForceCase))
+            return(true);
+        return(false);
+      default:
+        if (patternc != stringc)
+        {
+          // Allow "name." mask match "name" and "name.\" match "name\".
+          if (patternc=='.' && (stringc==0 || stringc=='\\' || stringc=='.'))
+            return(match(pattern,string,ForceCase));
+          else
+            return(false);
+        }
+        break;
+    }
+  }
+}
+
+
+int mwcsicompc(const wchar *Str1,const wchar *Str2,bool ForceCase)
+{
+  if (ForceCase)
+    return wcscmp(Str1,Str2);
+  return wcsicompc(Str1,Str2);
+}
+
+
+int mwcsnicompc(const wchar *Str1,const wchar *Str2,size_t N,bool ForceCase)
+{
+  if (ForceCase)
+    return wcsncmp(Str1,Str2,N);
+#if defined(_UNIX)
+  return wcsncmp(Str1,Str2,N);
+#else
+  return wcsnicomp(Str1,Str2,N);
+#endif
+}

reference/unrar/match.hpp

@@ -0,0 +1,34 @@
+#ifndef _RAR_MATCH_
+#define _RAR_MATCH_
+
+enum {
+   MATCH_NAMES,        // Paths are ignored.
+                       // Compares names only using wildcards.
+
+   MATCH_SUBPATHONLY,  // Paths must match either exactly or path in wildcard
+                       // must be present in the beginning of file path.
+                       // For example, "c:\path1\*" or "c:\path1" will match 
+                       // "c:\path1\path2\file".
+                       // Names are not compared.
+
+   MATCH_EXACT,        // Paths must match exactly.
+                       // Names must match exactly.
+
+   MATCH_EXACTPATH,    // Paths must match exactly.
+                       // Names are compared using wildcards.
+
+   MATCH_SUBPATH,      // Names must be the same, but path in mask is allowed
+                       // to be only a part of name path. In other words,
+                       // we match all files matching the file mask 
+                       // in current folder and subfolders.
+
+   MATCH_WILDSUBPATH   // Works as MATCH_SUBPATH if file mask contains
+                       // wildcards and as MATCH_EXACTPATH otherwise.
+};
+
+#define MATCH_MODEMASK           0x0000ffff
+#define MATCH_FORCECASESENSITIVE 0x80000000
+
+bool CmpName(const wchar *Wildcard,const wchar *Name,int CmpMode);
+
+#endif

reference/unrar/model.cpp

@@ -0,0 +1,617 @@
+/****************************************************************************
+ *  This file is part of PPMd project                                       *
+ *  Written and distributed to public domain by Dmitry Shkarin 1997,        *
+ *  1999-2000                                                               *
+ *  Contents: model description and encoding/decoding routines              *
+ ****************************************************************************/
+
+static const int MAX_O=64; /* maximum allowed model order */
+const uint TOP=1 << 24, BOT=1 << 15;
+
+template <class T>
+inline void _PPMD_SWAP(T& t1,T& t2) { T tmp=t1; t1=t2; t2=tmp; }
+
+
+inline RARPPM_CONTEXT* RARPPM_CONTEXT::createChild(ModelPPM *Model,RARPPM_STATE* pStats,
+                                             RARPPM_STATE& FirstState)
+{
+  RARPPM_CONTEXT* pc = (RARPPM_CONTEXT*) Model->SubAlloc.AllocContext();
+  if ( pc ) 
+  {
+    pc->NumStats=1;                     
+    pc->OneState=FirstState;
+    pc->Suffix=this;                    
+    pStats->Successor=pc;
+  }
+  return pc;
+}
+
+
+ModelPPM::ModelPPM()
+{
+  MinContext=NULL;
+  MaxContext=NULL;
+  MedContext=NULL;
+}
+
+
+void ModelPPM::RestartModelRare()
+{
+  int i, k, m;
+  memset(CharMask,0,sizeof(CharMask));
+  SubAlloc.InitSubAllocator();
+  InitRL=-(MaxOrder < 12 ? MaxOrder:12)-1;
+  MinContext = MaxContext = (RARPPM_CONTEXT*) SubAlloc.AllocContext();
+  MinContext->Suffix=NULL;
+  OrderFall=MaxOrder;
+  MinContext->U.SummFreq=(MinContext->NumStats=256)+1;
+  FoundState=MinContext->U.Stats=(RARPPM_STATE*)SubAlloc.AllocUnits(256/2);
+  for (RunLength=InitRL, PrevSuccess=i=0;i < 256;i++) 
+  {
+    MinContext->U.Stats[i].Symbol=i;      
+    MinContext->U.Stats[i].Freq=1;
+    MinContext->U.Stats[i].Successor=NULL;
+  }
+  
+  static const ushort InitBinEsc[]={
+    0x3CDD,0x1F3F,0x59BF,0x48F3,0x64A1,0x5ABC,0x6632,0x6051
+  };
+
+  for (i=0;i < 128;i++)
+    for (k=0;k < 8;k++)
+      for (m=0;m < 64;m += 8)
+        BinSumm[i][k+m]=BIN_SCALE-InitBinEsc[k]/(i+2);
+  for (i=0;i < 25;i++)
+    for (k=0;k < 16;k++)            
+      SEE2Cont[i][k].init(5*i+10);
+}
+
+
+void ModelPPM::StartModelRare(int MaxOrder)
+{
+  int i, k, m ,Step;
+  EscCount=1;
+/*
+  if (MaxOrder < 2) 
+  {
+    memset(CharMask,0,sizeof(CharMask));
+    OrderFall=ModelPPM::MaxOrder;
+    MinContext=MaxContext;
+    while (MinContext->Suffix != NULL)
+    {
+      MinContext=MinContext->Suffix;
+      OrderFall--;
+    }
+    FoundState=MinContext->U.Stats;
+    MinContext=MaxContext;
+  } 
+  else 
+*/
+  {
+    ModelPPM::MaxOrder=MaxOrder;
+    RestartModelRare();
+    NS2BSIndx[0]=2*0;
+    NS2BSIndx[1]=2*1;
+    memset(NS2BSIndx+2,2*2,9);
+    memset(NS2BSIndx+11,2*3,256-11);
+    for (i=0;i < 3;i++)
+      NS2Indx[i]=i;
+    for (m=i, k=Step=1;i < 256;i++) 
+    {
+      NS2Indx[i]=m;
+      if ( !--k ) 
+      { 
+        k = ++Step;
+        m++; 
+      }
+    }
+    memset(HB2Flag,0,0x40);
+    memset(HB2Flag+0x40,0x08,0x100-0x40);
+    DummySEE2Cont.Shift=PERIOD_BITS;
+  }
+}
+
+
+void RARPPM_CONTEXT::rescale(ModelPPM *Model)
+{
+  int OldNS=NumStats, i=NumStats-1, Adder, EscFreq;
+  RARPPM_STATE* p1, * p;
+  for (p=Model->FoundState;p != U.Stats;p--)
+    _PPMD_SWAP(p[0],p[-1]);
+  U.Stats->Freq += 4;
+  U.SummFreq += 4;
+  EscFreq=U.SummFreq-p->Freq;
+  Adder=(Model->OrderFall != 0);
+  U.SummFreq = (p->Freq=(p->Freq+Adder) >> 1);
+  do 
+  {
+    EscFreq -= (++p)->Freq;
+    U.SummFreq += (p->Freq=(p->Freq+Adder) >> 1);
+    if (p[0].Freq > p[-1].Freq) 
+    {
+      RARPPM_STATE tmp=*(p1=p);
+      do 
+      { 
+        p1[0]=p1[-1]; 
+      } while (--p1 != U.Stats && tmp.Freq > p1[-1].Freq);
+      *p1=tmp;
+    }
+  } while ( --i );
+  if (p->Freq == 0) 
+  {
+    do 
+    { 
+      i++; 
+    } while ((--p)->Freq == 0);
+    EscFreq += i;
+    if ((NumStats -= i) == 1) 
+    {
+      RARPPM_STATE tmp=*U.Stats;
+      do 
+      { 
+        tmp.Freq-=(tmp.Freq >> 1); 
+        EscFreq>>=1; 
+      } while (EscFreq > 1);
+      Model->SubAlloc.FreeUnits(U.Stats,(OldNS+1) >> 1);
+      *(Model->FoundState=&OneState)=tmp;  return;
+    }
+  }
+  U.SummFreq += (EscFreq -= (EscFreq >> 1));
+  int n0=(OldNS+1) >> 1, n1=(NumStats+1) >> 1;
+  if (n0 != n1)
+    U.Stats = (RARPPM_STATE*) Model->SubAlloc.ShrinkUnits(U.Stats,n0,n1);
+  Model->FoundState=U.Stats;
+}
+
+
+inline RARPPM_CONTEXT* ModelPPM::CreateSuccessors(bool Skip,RARPPM_STATE* p1)
+{
+#ifdef __ICL
+  static
+#endif
+  RARPPM_STATE UpState;
+  RARPPM_CONTEXT* pc=MinContext, * UpBranch=FoundState->Successor;
+  RARPPM_STATE * p, * ps[MAX_O], ** pps=ps;
+  if ( !Skip ) 
+  {
+    *pps++ = FoundState;
+    if ( !pc->Suffix )
+      goto NO_LOOP;
+  }
+  if ( p1 ) 
+  {
+    p=p1;
+    pc=pc->Suffix;
+    goto LOOP_ENTRY;
+  }
+  do 
+  {
+    pc=pc->Suffix;
+    if (pc->NumStats != 1) 
+    {
+      if ((p=pc->U.Stats)->Symbol != FoundState->Symbol)
+        do 
+        {
+          p++; 
+        } while (p->Symbol != FoundState->Symbol);
+    } 
+    else
+      p=&(pc->OneState);
+LOOP_ENTRY:
+    if (p->Successor != UpBranch) 
+    {
+      pc=p->Successor;
+      break;
+    }
+    *pps++ = p;
+  } while ( pc->Suffix );
+NO_LOOP:
+  if (pps == ps)
+    return pc;
+  UpState.Symbol=*(byte*) UpBranch;
+  UpState.Successor=(RARPPM_CONTEXT*) (((byte*) UpBranch)+1);
+  if (pc->NumStats != 1) 
+  {
+    if ((byte*) pc <= SubAlloc.pText)
+      return(NULL);
+    if ((p=pc->U.Stats)->Symbol != UpState.Symbol)
+    do 
+    { 
+      p++; 
+    } while (p->Symbol != UpState.Symbol);
+    uint cf=p->Freq-1;
+    uint s0=pc->U.SummFreq-pc->NumStats-cf;
+    UpState.Freq=1+((2*cf <= s0)?(5*cf > s0):((2*cf+3*s0-1)/(2*s0)));
+  } 
+  else
+    UpState.Freq=pc->OneState.Freq;
+  do 
+  {
+    pc = pc->createChild(this,*--pps,UpState);
+    if ( !pc )
+      return NULL;
+  } while (pps != ps);
+  return pc;
+}
+
+
+inline void ModelPPM::UpdateModel()
+{
+  RARPPM_STATE fs = *FoundState, *p = NULL;
+  RARPPM_CONTEXT *pc, *Successor;
+  uint ns1, ns, cf, sf, s0;
+  if (fs.Freq < MAX_FREQ/4 && (pc=MinContext->Suffix) != NULL) 
+  {
+    if (pc->NumStats != 1) 
+    {
+      if ((p=pc->U.Stats)->Symbol != fs.Symbol) 
+      {
+        do 
+        { 
+          p++; 
+        } while (p->Symbol != fs.Symbol);
+        if (p[0].Freq >= p[-1].Freq) 
+        {
+          _PPMD_SWAP(p[0],p[-1]); 
+          p--;
+        }
+      }
+      if (p->Freq < MAX_FREQ-9) 
+      {
+        p->Freq += 2;               
+        pc->U.SummFreq += 2;
+      }
+    } 
+    else 
+    {
+      p=&(pc->OneState);
+      p->Freq += (p->Freq < 32);
+    }
+  }
+  if ( !OrderFall ) 
+  {
+    MinContext=MaxContext=FoundState->Successor=CreateSuccessors(TRUE,p);
+    if ( !MinContext )
+      goto RESTART_MODEL;
+    return;
+  }
+  *SubAlloc.pText++ = fs.Symbol;                   
+  Successor = (RARPPM_CONTEXT*) SubAlloc.pText;
+  if (SubAlloc.pText >= SubAlloc.FakeUnitsStart)                
+    goto RESTART_MODEL;
+  if ( fs.Successor ) 
+  {
+    if ((byte*) fs.Successor <= SubAlloc.pText &&
+        (fs.Successor=CreateSuccessors(FALSE,p)) == NULL)
+      goto RESTART_MODEL;
+    if ( !--OrderFall ) 
+    {
+      Successor=fs.Successor;
+      SubAlloc.pText -= (MaxContext != MinContext);
+    }
+  } 
+  else 
+  {
+    FoundState->Successor=Successor;
+    fs.Successor=MinContext;
+  }
+  s0=MinContext->U.SummFreq-(ns=MinContext->NumStats)-(fs.Freq-1);
+  for (pc=MaxContext;pc != MinContext;pc=pc->Suffix) 
+  {
+    if ((ns1=pc->NumStats) != 1) 
+    {
+      if ((ns1 & 1) == 0) 
+      {
+        pc->U.Stats=(RARPPM_STATE*) SubAlloc.ExpandUnits(pc->U.Stats,ns1 >> 1);
+        if ( !pc->U.Stats )           
+          goto RESTART_MODEL;
+      }
+      pc->U.SummFreq += (2*ns1 < ns)+2*((4*ns1 <= ns) & (pc->U.SummFreq <= 8*ns1));
+    } 
+    else 
+    {
+      p=(RARPPM_STATE*) SubAlloc.AllocUnits(1);
+      if ( !p )
+        goto RESTART_MODEL;
+      *p=pc->OneState;
+      pc->U.Stats=p;
+      if (p->Freq < MAX_FREQ/4-1)
+        p->Freq += p->Freq;
+      else
+        p->Freq  = MAX_FREQ-4;
+      pc->U.SummFreq=p->Freq+InitEsc+(ns > 3);
+    }
+    cf=2*fs.Freq*(pc->U.SummFreq+6);
+    sf=s0+pc->U.SummFreq;
+    if (cf < 6*sf) 
+    {
+      cf=1+(cf > sf)+(cf >= 4*sf);
+      pc->U.SummFreq += 3;
+    }
+    else 
+    {
+      cf=4+(cf >= 9*sf)+(cf >= 12*sf)+(cf >= 15*sf);
+      pc->U.SummFreq += cf;
+    }
+    p=pc->U.Stats+ns1;
+    p->Successor=Successor;
+    p->Symbol = fs.Symbol;
+    p->Freq = cf;
+    pc->NumStats=++ns1;
+  }
+  MaxContext=MinContext=fs.Successor;
+  return;
+RESTART_MODEL:
+  RestartModelRare();
+  EscCount=0;
+}
+
+
+// Tabulated escapes for exponential symbol distribution
+static const byte ExpEscape[16]={ 25,14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
+#define GET_MEAN(SUMM,SHIFT,ROUND) ((SUMM+(1 << (SHIFT-ROUND))) >> (SHIFT))
+
+
+
+inline void RARPPM_CONTEXT::decodeBinSymbol(ModelPPM *Model)
+{
+  RARPPM_STATE& rs=OneState;
+  Model->HiBitsFlag=Model->HB2Flag[Model->FoundState->Symbol];
+  ushort& bs=Model->BinSumm[rs.Freq-1][Model->PrevSuccess+
+           Model->NS2BSIndx[Suffix->NumStats-1]+
+           Model->HiBitsFlag+2*Model->HB2Flag[rs.Symbol]+
+           ((Model->RunLength >> 26) & 0x20)];
+  if (Model->Coder.GetCurrentShiftCount(TOT_BITS) < bs) 
+  {
+    Model->FoundState=&rs;
+    rs.Freq += (rs.Freq < 128);
+    Model->Coder.SubRange.LowCount=0;
+    Model->Coder.SubRange.HighCount=bs;
+    bs = GET_SHORT16(bs+INTERVAL-GET_MEAN(bs,PERIOD_BITS,2));
+    Model->PrevSuccess=1;
+    Model->RunLength++;
+  } 
+  else 
+  {
+    Model->Coder.SubRange.LowCount=bs;
+    bs = GET_SHORT16(bs-GET_MEAN(bs,PERIOD_BITS,2));
+    Model->Coder.SubRange.HighCount=BIN_SCALE;
+    Model->InitEsc=ExpEscape[bs >> 10];
+    Model->NumMasked=1;
+    Model->CharMask[rs.Symbol]=Model->EscCount;
+    Model->PrevSuccess=0;
+    Model->FoundState=NULL;
+  }
+}
+
+
+inline void RARPPM_CONTEXT::update1(ModelPPM *Model,RARPPM_STATE* p)
+{
+  (Model->FoundState=p)->Freq += 4;              
+  U.SummFreq += 4;
+  if (p[0].Freq > p[-1].Freq) 
+  {
+    _PPMD_SWAP(p[0],p[-1]);                   
+    Model->FoundState=--p;
+    if (p->Freq > MAX_FREQ)             
+      rescale(Model);
+  }
+}
+
+
+
+
+inline bool RARPPM_CONTEXT::decodeSymbol1(ModelPPM *Model)
+{
+  Model->Coder.SubRange.scale=U.SummFreq;
+  RARPPM_STATE* p=U.Stats;
+  int i, HiCnt;
+  int count=Model->Coder.GetCurrentCount();
+  if (count>=(int)Model->Coder.SubRange.scale)
+    return(false);
+  if (count < (HiCnt=p->Freq)) 
+  {
+    Model->PrevSuccess=(2*(Model->Coder.SubRange.HighCount=HiCnt) > Model->Coder.SubRange.scale);
+    Model->RunLength += Model->PrevSuccess;
+    (Model->FoundState=p)->Freq=(HiCnt += 4);
+    U.SummFreq += 4;
+    if (HiCnt > MAX_FREQ)
+      rescale(Model);
+    Model->Coder.SubRange.LowCount=0;
+    return(true);
+  }
+  else
+    if (Model->FoundState==NULL)
+      return(false);
+  Model->PrevSuccess=0;
+  i=NumStats-1;
+  while ((HiCnt += (++p)->Freq) <= count)
+    if (--i == 0) 
+    {
+      Model->HiBitsFlag=Model->HB2Flag[Model->FoundState->Symbol];
+      Model->Coder.SubRange.LowCount=HiCnt;
+      Model->CharMask[p->Symbol]=Model->EscCount;
+      i=(Model->NumMasked=NumStats)-1;
+      Model->FoundState=NULL;
+      do 
+      { 
+        Model->CharMask[(--p)->Symbol]=Model->EscCount; 
+      } while ( --i );
+      Model->Coder.SubRange.HighCount=Model->Coder.SubRange.scale;
+      return(true);
+    }
+  Model->Coder.SubRange.LowCount=(Model->Coder.SubRange.HighCount=HiCnt)-p->Freq;
+  update1(Model,p);
+  return(true);
+}
+
+
+inline void RARPPM_CONTEXT::update2(ModelPPM *Model,RARPPM_STATE* p)
+{
+  (Model->FoundState=p)->Freq += 4;              
+  U.SummFreq += 4;
+  if (p->Freq > MAX_FREQ)                 
+    rescale(Model);
+  Model->EscCount++;
+  Model->RunLength=Model->InitRL;
+}
+
+
+inline RARPPM_SEE2_CONTEXT* RARPPM_CONTEXT::makeEscFreq2(ModelPPM *Model,int Diff)
+{
+  RARPPM_SEE2_CONTEXT* psee2c;
+  if (NumStats != 256) 
+  {
+    psee2c=Model->SEE2Cont[Model->NS2Indx[Diff-1]]+
+           (Diff < Suffix->NumStats-NumStats)+
+           2*(U.SummFreq < 11*NumStats)+4*(Model->NumMasked > Diff)+
+           Model->HiBitsFlag;
+    Model->Coder.SubRange.scale=psee2c->getMean();
+  }
+  else 
+  {
+    psee2c=&Model->DummySEE2Cont;
+    Model->Coder.SubRange.scale=1;
+  }
+  return psee2c;
+}
+
+
+
+
+inline bool RARPPM_CONTEXT::decodeSymbol2(ModelPPM *Model)
+{
+  int count, HiCnt, i=NumStats-Model->NumMasked;
+  RARPPM_SEE2_CONTEXT* psee2c=makeEscFreq2(Model,i);
+  RARPPM_STATE* ps[256], ** pps=ps, * p=U.Stats-1;
+  HiCnt=0;
+  do 
+  {
+    do 
+    { 
+      p++; 
+    } while (Model->CharMask[p->Symbol] == Model->EscCount);
+    HiCnt += p->Freq;
+    *pps++ = p;
+  } while ( --i );
+  Model->Coder.SubRange.scale += HiCnt;
+  count=Model->Coder.GetCurrentCount();
+  if (count>=(int)Model->Coder.SubRange.scale)
+    return(false);
+  p=*(pps=ps);
+  if (count < HiCnt) 
+  {
+    HiCnt=0;
+    while ((HiCnt += p->Freq) <= count) 
+      p=*++pps;
+    Model->Coder.SubRange.LowCount = (Model->Coder.SubRange.HighCount=HiCnt)-p->Freq;
+    psee2c->update();
+    update2(Model,p);
+  }
+  else
+  {
+    Model->Coder.SubRange.LowCount=HiCnt;
+    Model->Coder.SubRange.HighCount=Model->Coder.SubRange.scale;
+    i=NumStats-Model->NumMasked;
+    pps--;
+    do 
+    { 
+      Model->CharMask[(*++pps)->Symbol]=Model->EscCount; 
+    } while ( --i );
+    psee2c->Summ += Model->Coder.SubRange.scale;
+    Model->NumMasked = NumStats;
+  }
+  return(true);
+}
+
+
+inline void ModelPPM::ClearMask()
+{
+  EscCount=1;                             
+  memset(CharMask,0,sizeof(CharMask));
+}
+
+
+
+
+// reset PPM variables after data error allowing safe resuming
+// of further data processing
+void ModelPPM::CleanUp()
+{
+  SubAlloc.StopSubAllocator();
+  SubAlloc.StartSubAllocator(1);
+  StartModelRare(2);
+}
+
+
+bool ModelPPM::DecodeInit(Unpack *UnpackRead,int &EscChar)
+{
+  int MaxOrder=UnpackRead->GetChar();
+  bool Reset=(MaxOrder & 0x20)!=0;
+
+  int MaxMB;
+  if (Reset)
+    MaxMB=UnpackRead->GetChar();
+  else
+    if (SubAlloc.GetAllocatedMemory()==0)
+      return(false);
+  if (MaxOrder & 0x40)
+    EscChar=UnpackRead->GetChar();
+  Coder.InitDecoder(UnpackRead);
+  if (Reset)
+  {
+    MaxOrder=(MaxOrder & 0x1f)+1;
+    if (MaxOrder>16)
+      MaxOrder=16+(MaxOrder-16)*3;
+    if (MaxOrder==1)
+    {
+      SubAlloc.StopSubAllocator();
+      return(false);
+    }
+    SubAlloc.StartSubAllocator(MaxMB+1);
+    StartModelRare(MaxOrder);
+  }
+  return(MinContext!=NULL);
+}
+
+
+int ModelPPM::DecodeChar()
+{
+  if ((byte*)MinContext <= SubAlloc.pText || (byte*)MinContext>SubAlloc.HeapEnd)
+    return(-1);
+  if (MinContext->NumStats != 1)      
+  {
+    if ((byte*)MinContext->U.Stats <= SubAlloc.pText || (byte*)MinContext->U.Stats>SubAlloc.HeapEnd)
+      return(-1);
+    if (!MinContext->decodeSymbol1(this))
+      return(-1);
+  }
+  else                                
+    MinContext->decodeBinSymbol(this);
+  Coder.Decode();
+  while ( !FoundState ) 
+  {
+    ARI_DEC_NORMALIZE(Coder.code,Coder.low,Coder.range,Coder.UnpackRead);
+    do
+    {
+      OrderFall++;                
+      MinContext=MinContext->Suffix;
+      if ((byte*)MinContext <= SubAlloc.pText || (byte*)MinContext>SubAlloc.HeapEnd)
+        return(-1);
+    } while (MinContext->NumStats == NumMasked);
+    if (!MinContext->decodeSymbol2(this))
+      return(-1);
+    Coder.Decode();
+  }
+  int Symbol=FoundState->Symbol;
+  if (!OrderFall && (byte*) FoundState->Successor > SubAlloc.pText)
+    MinContext=MaxContext=FoundState->Successor;
+  else
+  {
+    UpdateModel();
+    if (EscCount == 0)
+      ClearMask();
+  }
+  ARI_DEC_NORMALIZE(Coder.code,Coder.low,Coder.range,Coder.UnpackRead);
+  return(Symbol);
+}

reference/unrar/model.hpp

@@ -0,0 +1,122 @@
+#ifndef _RAR_PPMMODEL_
+#define _RAR_PPMMODEL_
+
+#include "coder.hpp"
+#include "suballoc.hpp"
+
+#ifdef ALLOW_MISALIGNED
+#pragma pack(1)
+#endif
+
+struct RARPPM_DEF
+{
+  static const int INT_BITS=7, PERIOD_BITS=7, TOT_BITS=INT_BITS+PERIOD_BITS,
+    INTERVAL=1 << INT_BITS, BIN_SCALE=1 << TOT_BITS, MAX_FREQ=124;
+};
+
+struct RARPPM_SEE2_CONTEXT : RARPPM_DEF
+{ // SEE-contexts for PPM-contexts with masked symbols
+  ushort Summ;
+  byte Shift, Count;
+  void init(int InitVal)
+  {
+    Summ=InitVal << (Shift=PERIOD_BITS-4);
+    Count=4;
+  }
+  uint getMean()
+  {
+    uint RetVal=GET_SHORT16(Summ) >> Shift;
+    Summ -= RetVal;
+    return RetVal+(RetVal == 0);
+  }
+  void update()
+  {
+    if (Shift < PERIOD_BITS && --Count == 0)
+    {
+      Summ += Summ;
+      Count=3 << Shift++;
+    }
+  }
+};
+
+
+class ModelPPM;
+struct RARPPM_CONTEXT;
+
+struct RARPPM_STATE
+{
+  byte Symbol;
+  byte Freq;
+  RARPPM_CONTEXT* Successor;
+};
+
+
+struct RARPPM_CONTEXT : RARPPM_DEF
+{
+    ushort NumStats;
+
+    struct FreqData
+    {
+      ushort SummFreq;
+      RARPPM_STATE RARPPM_PACK_ATTR * Stats;
+    };
+    
+    union
+    {
+      FreqData U;
+      RARPPM_STATE OneState;
+    };
+
+    RARPPM_CONTEXT* Suffix;
+    inline void encodeBinSymbol(ModelPPM *Model,int symbol);  // MaxOrder:
+    inline void encodeSymbol1(ModelPPM *Model,int symbol);    //  ABCD    context
+    inline void encodeSymbol2(ModelPPM *Model,int symbol);    //   BCD    suffix
+    inline void decodeBinSymbol(ModelPPM *Model);  //   BCDE   successor
+    inline bool decodeSymbol1(ModelPPM *Model);    // other orders:
+    inline bool decodeSymbol2(ModelPPM *Model);    //   BCD    context
+    inline void update1(ModelPPM *Model,RARPPM_STATE* p); //    CD    suffix
+    inline void update2(ModelPPM *Model,RARPPM_STATE* p); //   BCDE   successor
+    void rescale(ModelPPM *Model);
+    inline RARPPM_CONTEXT* createChild(ModelPPM *Model,RARPPM_STATE* pStats,RARPPM_STATE& FirstState);
+    inline RARPPM_SEE2_CONTEXT* makeEscFreq2(ModelPPM *Model,int Diff);
+};
+
+#ifdef ALLOW_MISALIGNED
+#ifdef _AIX
+#pragma pack(pop)
+#else
+#pragma pack()
+#endif
+#endif
+
+class ModelPPM : RARPPM_DEF
+{
+  private:
+    friend struct RARPPM_CONTEXT;
+    
+    RARPPM_SEE2_CONTEXT SEE2Cont[25][16], DummySEE2Cont;
+    
+    struct RARPPM_CONTEXT *MinContext, *MedContext, *MaxContext;
+    RARPPM_STATE* FoundState;      // found next state transition
+    int NumMasked, InitEsc, OrderFall, MaxOrder, RunLength, InitRL;
+    byte CharMask[256], NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
+    byte EscCount, PrevSuccess, HiBitsFlag;
+    ushort BinSumm[128][64];               // binary SEE-contexts
+
+    RangeCoder Coder;
+    SubAllocator SubAlloc;
+
+    void RestartModelRare();
+    void StartModelRare(int MaxOrder);
+    inline RARPPM_CONTEXT* CreateSuccessors(bool Skip,RARPPM_STATE* p1);
+
+    inline void UpdateModel();
+    inline void ClearMask();
+  public:
+    ModelPPM();
+    void CleanUp(); // reset PPM variables after data error
+    bool DecodeInit(Unpack *UnpackRead,int &EscChar);
+    int DecodeChar();
+};
+
+#endif