Files
SabreTools.Serialization/SabreTools.Serialization/Extensions.PortableExecutable.cs
2025-09-11 10:11:05 -04:00

1443 lines
61 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml.Serialization;
using SabreTools.IO.Extensions;
using SabreTools.Models.PortableExecutable;
using SabreTools.Models.PortableExecutable.ResourceEntries;
namespace SabreTools.Serialization
{
public static partial class Extensions
{
/// <summary>
/// Convert a relative virtual address to a physical one
/// </summary>
/// <param name="rva">Relative virtual address to convert</param>
/// <param name="sections">Array of sections to check against</param>
/// <returns>Physical address, 0 on error</returns>
public static uint ConvertVirtualAddress(this uint rva, SectionHeader[]? sections)
{
// If we have an invalid section table, we can't do anything
if (sections == null || sections.Length == 0)
return 0;
// If the RVA is 0, we just return 0 because it's invalid
if (rva == 0)
return 0;
// If the RVA matches a section start exactly, use that
var matchingSection = Array.Find(sections, s => s.VirtualAddress == rva);
if (matchingSection != null)
return rva - matchingSection.VirtualAddress + matchingSection.PointerToRawData;
// Loop through all of the sections
uint maxVirtualAddress = 0, maxRawPointer = 0;
for (int i = 0; i < sections.Length; i++)
{
// If the section "starts" at 0, just skip it
var section = sections[i];
if (section.PointerToRawData == 0)
continue;
// If the virtual address is greater than the RVA
if (rva < section.VirtualAddress)
continue;
// Cache the maximum matching section data, in case of a miss
if (rva >= section.VirtualAddress)
{
maxVirtualAddress = section.VirtualAddress;
maxRawPointer = section.PointerToRawData;
}
// Attempt to derive the physical address from the current section
if (section.VirtualSize != 0 && rva <= section.VirtualAddress + section.VirtualSize)
return rva - section.VirtualAddress + section.PointerToRawData;
else if (section.SizeOfRawData != 0 && rva <= section.VirtualAddress + section.SizeOfRawData)
return rva - section.VirtualAddress + section.PointerToRawData;
}
return maxRawPointer != 0 ? rva - maxVirtualAddress + maxRawPointer : 0;
}
/// <summary>
/// Find the section a revlative virtual address lives in
/// </summary>
/// <param name="rva">Relative virtual address to convert</param>
/// <param name="sections">Array of sections to check against</param>
/// <returns>Section index, null on error</returns>
public static int ContainingSectionIndex(this uint rva, SectionHeader[]? sections)
{
// If we have an invalid section table, we can't do anything
if (sections == null || sections.Length == 0)
return -1;
// If the RVA is 0, we just return -1 because it's invalid
if (rva == 0)
return -1;
// Loop through all of the sections
for (int i = 0; i < sections.Length; i++)
{
// If the section "starts" at 0, just skip it
var section = sections[i];
if (section.PointerToRawData == 0)
continue;
// If the virtual address is greater than the RVA
if (rva < section.VirtualAddress)
continue;
// Attempt to derive the physical address from the current section
if (section.VirtualSize != 0 && rva <= section.VirtualAddress + section.VirtualSize)
return i;
else if (section.SizeOfRawData != 0 && rva <= section.VirtualAddress + section.SizeOfRawData)
return i;
}
return -1;
}
#region Debug
/// <summary>
/// Parse a byte array into a NB10ProgramDatabase
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled NB10ProgramDatabase on success, null on error</returns>
public static NB10ProgramDatabase? ParseNB10ProgramDatabase(this byte[] data, ref int offset)
{
var obj = new NB10ProgramDatabase();
obj.Signature = data.ReadUInt32LittleEndian(ref offset);
if (obj.Signature != 0x3031424E)
return null;
obj.Offset = data.ReadUInt32LittleEndian(ref offset);
obj.Timestamp = data.ReadUInt32LittleEndian(ref offset);
obj.Age = data.ReadUInt32LittleEndian(ref offset);
obj.PdbFileName = data.ReadNullTerminatedAnsiString(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a RSDSProgramDatabase
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled RSDSProgramDatabase on success, null on error</returns>
public static RSDSProgramDatabase? ParseRSDSProgramDatabase(this byte[] data, ref int offset)
{
var obj = new RSDSProgramDatabase();
obj.Signature = data.ReadUInt32LittleEndian(ref offset);
if (obj.Signature != 0x53445352)
return null;
obj.GUID = data.ReadGuid(ref offset);
obj.Age = data.ReadUInt32LittleEndian(ref offset);
obj.PathAndFileName = data.ReadNullTerminatedUTF8String(ref offset);
return obj;
}
#endregion
#region Overlay
/// <summary>
/// Parse a byte array into a SecuROMAddD
/// </summary>
/// <param name="data">Data to parse into overlay data</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled SecuROMAddD on success, null on error</returns>
public static SecuROMAddD? ParseSecuROMAddD(this byte[] data, ref int offset)
{
// Read in the table
var obj = new SecuROMAddD();
obj.Signature = data.ReadUInt32LittleEndian(ref offset);
if (obj.Signature != 0x44646441)
return null;
int originalOffset = offset;
obj.EntryCount = data.ReadUInt32LittleEndian(ref offset);
obj.Version = data.ReadNullTerminatedAnsiString(ref offset);
if (string.IsNullOrEmpty(obj.Version))
offset = originalOffset + 0x10;
var buildBytes = data.ReadBytes(ref offset, 4);
var buildChars = Array.ConvertAll(buildBytes, b => (char)b);
obj.Build = buildChars;
// Distinguish between v1 and v2
int bytesToRead = 112; // v2
if (string.IsNullOrEmpty(obj.Version)
|| obj.Version!.StartsWith("3")
|| obj.Version.StartsWith("4.47"))
{
bytesToRead = 44;
}
obj.Unknown14h = data.ReadBytes(ref offset, bytesToRead);
obj.Entries = new SecuROMAddDEntry[obj.EntryCount];
for (int i = 0; i < obj.EntryCount; i++)
{
obj.Entries[i] = ParseSecuROMAddDEntry(data, ref offset);
}
return obj;
}
/// <summary>
/// Parse a byte array into a SecuROMAddDEntry
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>Filled SecuROMAddDEntry on success, null on error</returns>
public static SecuROMAddDEntry ParseSecuROMAddDEntry(this byte[] data, ref int offset)
{
var obj = new SecuROMAddDEntry();
obj.PhysicalOffset = data.ReadUInt32LittleEndian(ref offset);
obj.Length = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown08h = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown0Ch = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown10h = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown14h = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown18h = data.ReadUInt32LittleEndian(ref offset);
obj.Unknown1Ch = data.ReadUInt32LittleEndian(ref offset);
obj.FileName = data.ReadNullTerminatedAnsiString(ref offset);
obj.Unknown2Ch = data.ReadUInt32LittleEndian(ref offset);
return obj;
}
#endregion
// TODO: Implement other resource types from https://learn.microsoft.com/en-us/windows/win32/menurc/resource-file-formats
#region Resources
/// <summary>
/// Read resource data as an accelerator table resource
/// </summary>
/// <param name="entry">Resource data entry to parse into an accelerator table resource</param>
/// <returns>A filled accelerator table resource on success, null on error</returns>
public static AcceleratorTableEntry[]? AsAcceleratorTableResource(this ResourceDataEntry? entry)
{
// If we have data that's invalid for this resource type, we can't do anything
if (entry?.Data == null || entry.Data.Length % 8 != 0)
return null;
// Get the number of entries
int count = entry.Data.Length / 8;
// Initialize the iterator
int offset = 0;
// Create the output object
var table = new AcceleratorTableEntry[count];
// Read in the table
for (int i = 0; i < count; i++)
{
table[i] = ParseAcceleratorTableEntry(entry.Data, ref offset);
}
return table;
}
/// <summary>
/// Read resource data as a side-by-side assembly manifest
/// </summary>
/// <param name="entry">Resource data entry to parse into a side-by-side assembly manifest</param>
/// <returns>A filled side-by-side assembly manifest on success, null on error</returns>
public static AssemblyManifest? AsAssemblyManifest(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
try
{
var serializer = new XmlSerializer(typeof(AssemblyManifest));
return serializer.Deserialize(new MemoryStream(entry.Data)) as AssemblyManifest;
}
catch
{
return null;
}
}
/// <summary>
/// Read resource data as a dialog box
/// </summary>
/// <param name="entry">Resource data entry to parse into a dialog box</param>
/// <returns>A filled dialog box on success, null on error</returns>
public static DialogBoxResource? AsDialogBox(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterator
int offset = 0;
// Create the output object
var dialogBoxResource = new DialogBoxResource();
// Try to read the signature for an extended dialog box template
int signatureOffset = sizeof(ushort);
int possibleSignature = entry.Data.ReadUInt16LittleEndian(ref signatureOffset);
if (possibleSignature == 0xFFFF)
{
#region Extended dialog template
var dialogTemplateExtended = new DialogTemplateExtended();
dialogTemplateExtended.Version = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplateExtended.Signature = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplateExtended.HelpID = entry.Data.ReadUInt32LittleEndian(ref offset);
dialogTemplateExtended.ExtendedStyle = (ExtendedWindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogTemplateExtended.Style = (WindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogTemplateExtended.DialogItems = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplateExtended.PositionX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplateExtended.PositionY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplateExtended.WidthX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplateExtended.HeightY = entry.Data.ReadInt16LittleEndian(ref offset);
#region Menu resource
int currentOffset = offset;
ushort menuResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (menuResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Flag if there's an ordinal at the end
bool menuResourceHasOrdinal = menuResourceIdentifier == 0xFFFF;
if (menuResourceHasOrdinal)
offset += sizeof(ushort);
// Read the menu resource as a string
dialogTemplateExtended.MenuResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
// Read the ordinal if we have the flag set
if (menuResourceHasOrdinal)
dialogTemplateExtended.MenuResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
#endregion
#region Class resource
currentOffset = offset;
ushort classResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (classResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Flag if there's an ordinal at the end
bool classResourcehasOrdinal = classResourceIdentifier == 0xFFFF;
if (classResourcehasOrdinal)
offset += sizeof(ushort);
// Read the class resource as a string
dialogTemplateExtended.ClassResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
// Read the ordinal if we have the flag set
if (classResourcehasOrdinal)
dialogTemplateExtended.ClassResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
#endregion
#region Title resource
currentOffset = offset;
ushort titleResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (titleResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Read the title resource as a string
dialogTemplateExtended.TitleResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Point size and typeface
// Only if DS_SETFONT is set are the values here used
#if NET20 || NET35
if ((dialogTemplateExtended.Style & WindowStyles.DS_SETFONT) != 0)
#else
if (dialogTemplateExtended.Style.HasFlag(WindowStyles.DS_SETFONT))
#endif
{
dialogTemplateExtended.PointSize = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplateExtended.Weight = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplateExtended.Italic = entry.Data.ReadByte(ref offset);
dialogTemplateExtended.CharSet = entry.Data.ReadByte(ref offset);
dialogTemplateExtended.Typeface = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
}
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
#endregion
dialogBoxResource.ExtendedDialogTemplate = dialogTemplateExtended;
#endregion
#region Extended dialog item templates
var dialogItemExtendedTemplates = new List<DialogItemTemplateExtended>();
for (int i = 0; i < dialogTemplateExtended.DialogItems; i++)
{
var dialogItemTemplate = new DialogItemTemplateExtended();
dialogItemTemplate.HelpID = entry.Data.ReadUInt32LittleEndian(ref offset);
dialogItemTemplate.ExtendedStyle = (ExtendedWindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogItemTemplate.Style = (WindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogItemTemplate.PositionX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.PositionY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.WidthX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.HeightY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.ID = entry.Data.ReadUInt32LittleEndian(ref offset);
#region Class resource
currentOffset = offset;
ushort itemClassResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0xFFFF means ordinal only
if (itemClassResourceIdentifier == 0xFFFF)
{
// Increment the pointer
_ = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read the ordinal
dialogItemTemplate.ClassResourceOrdinal = (DialogItemTemplateOrdinal)entry.Data.ReadUInt16LittleEndian(ref offset);
}
else
{
// Flag if there's an ordinal at the end
bool classResourcehasOrdinal = itemClassResourceIdentifier == 0xFFFF;
if (classResourcehasOrdinal)
offset += sizeof(ushort);
// Read the class resource as a string
dialogItemTemplate.ClassResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Title resource
currentOffset = offset;
ushort itemTitleResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0xFFFF means ordinal only
if (itemTitleResourceIdentifier == 0xFFFF)
{
// Increment the pointer
_ = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read the ordinal
dialogItemTemplate.TitleResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
else
{
// Read the title resource as a string
dialogItemTemplate.TitleResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Creation data
dialogItemTemplate.CreationDataSize = entry.Data.ReadUInt16LittleEndian(ref offset);
if (dialogItemTemplate.CreationDataSize != 0)
dialogItemTemplate.CreationData = entry.Data.ReadBytes(ref offset, dialogItemTemplate.CreationDataSize);
#endregion
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
dialogItemExtendedTemplates.Add(dialogItemTemplate);
// If we have an invalid item count
if (offset >= entry.Data.Length)
break;
}
dialogBoxResource.ExtendedDialogItemTemplates = [.. dialogItemExtendedTemplates];
#endregion
}
else
{
#region Dialog template
var dialogTemplate = new DialogTemplate();
dialogTemplate.Style = (WindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogTemplate.ExtendedStyle = (ExtendedWindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogTemplate.ItemCount = entry.Data.ReadUInt16LittleEndian(ref offset);
dialogTemplate.PositionX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplate.PositionY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplate.WidthX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogTemplate.HeightY = entry.Data.ReadInt16LittleEndian(ref offset);
#region Menu resource
int currentOffset = offset;
ushort menuResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (menuResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Flag if there's an ordinal at the end
bool menuResourceHasOrdinal = menuResourceIdentifier == 0xFFFF;
if (menuResourceHasOrdinal)
offset += sizeof(ushort);
// Read the menu resource as a string
dialogTemplate.MenuResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
// Read the ordinal if we have the flag set
if (menuResourceHasOrdinal)
dialogTemplate.MenuResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
#endregion
#region Class resource
currentOffset = offset;
ushort classResourceIdentifier;
if (offset >= entry.Data.Length)
classResourceIdentifier = 0x0000;
else
classResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (classResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Flag if there's an ordinal at the end
bool classResourcehasOrdinal = classResourceIdentifier == 0xFFFF;
if (classResourcehasOrdinal)
offset += sizeof(ushort);
// Read the class resource as a string
dialogTemplate.ClassResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
// Read the ordinal if we have the flag set
if (classResourcehasOrdinal)
dialogTemplate.ClassResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
#endregion
#region Title resource
currentOffset = offset;
ushort titleResourceIdentifier;
if (offset >= entry.Data.Length)
titleResourceIdentifier = 0x0000;
else
titleResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0x0000 means no elements
if (titleResourceIdentifier == 0x0000)
{
// Increment the pointer if it was empty
offset += sizeof(ushort);
}
else
{
// Read the title resource as a string
dialogTemplate.TitleResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Point size and typeface
// Only if DS_SETFONT is set are the values here used
#if NET20 || NET35
if ((dialogTemplate.Style & WindowStyles.DS_SETFONT) != 0)
#else
if (dialogTemplate.Style.HasFlag(WindowStyles.DS_SETFONT))
#endif
{
dialogTemplate.PointSizeValue = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read the font name as a string
dialogTemplate.Typeface = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
}
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
#endregion
dialogBoxResource.DialogTemplate = dialogTemplate;
#endregion
#region Dialog item templates
var dialogItemTemplates = new List<DialogItemTemplate>();
for (int i = 0; i < dialogTemplate.ItemCount; i++)
{
var dialogItemTemplate = new DialogItemTemplate();
dialogItemTemplate.Style = (WindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogItemTemplate.ExtendedStyle = (ExtendedWindowStyles)entry.Data.ReadUInt32LittleEndian(ref offset);
dialogItemTemplate.PositionX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.PositionY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.WidthX = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.HeightY = entry.Data.ReadInt16LittleEndian(ref offset);
dialogItemTemplate.ID = entry.Data.ReadUInt16LittleEndian(ref offset);
#region Class resource
currentOffset = offset;
ushort itemClassResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0xFFFF means ordinal only
if (itemClassResourceIdentifier == 0xFFFF)
{
// Increment the pointer
_ = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read the ordinal
dialogItemTemplate.ClassResourceOrdinal = (DialogItemTemplateOrdinal)entry.Data.ReadUInt16LittleEndian(ref offset);
}
else
{
// Flag if there's an ordinal at the end
bool classResourcehasOrdinal = itemClassResourceIdentifier == 0xFFFF;
if (classResourcehasOrdinal)
offset += sizeof(ushort);
// Read the class resource as a string
dialogItemTemplate.ClassResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Title resource
currentOffset = offset;
ushort itemTitleResourceIdentifier = entry.Data.ReadUInt16LittleEndian(ref offset);
offset = currentOffset;
// 0xFFFF means ordinal only
if (itemTitleResourceIdentifier == 0xFFFF)
{
// Increment the pointer
_ = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read the ordinal
dialogItemTemplate.TitleResourceOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
}
else
{
// Read the title resource as a string
dialogItemTemplate.TitleResource = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the WORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 2);
}
#endregion
#region Creation data
dialogItemTemplate.CreationDataSize = entry.Data.ReadUInt16LittleEndian(ref offset);
if (dialogItemTemplate.CreationDataSize != 0)
dialogItemTemplate.CreationData = entry.Data.ReadBytes(ref offset, dialogItemTemplate.CreationDataSize);
#endregion
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
dialogItemTemplates.Add(dialogItemTemplate);
// If we have an invalid item count
if (offset >= entry.Data.Length)
break;
}
dialogBoxResource.DialogItemTemplates = [.. dialogItemTemplates];
#endregion
}
return dialogBoxResource;
}
/// <summary>
/// Read resource data as a font group
/// </summary>
/// <param name="entry">Resource data entry to parse into a font group</param>
/// <returns>A filled font group on success, null on error</returns>
public static FontGroupHeader? AsFontGroup(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterator
int offset = 0;
// Create the output object
var fontGroupHeader = new FontGroupHeader();
fontGroupHeader.NumberOfFonts = entry.Data.ReadUInt16LittleEndian(ref offset);
if (fontGroupHeader.NumberOfFonts > 0)
{
fontGroupHeader.DE = new DirEntry[fontGroupHeader.NumberOfFonts];
for (int i = 0; i < fontGroupHeader.NumberOfFonts; i++)
{
var dirEntry = new DirEntry();
dirEntry.FontOrdinal = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry = new FontDirEntry();
dirEntry.Entry.Version = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.Size = entry.Data.ReadUInt32LittleEndian(ref offset);
dirEntry.Entry.Copyright = entry.Data.ReadBytes(ref offset, 60);
dirEntry.Entry.Type = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.Points = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.VertRes = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.HorizRes = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.Ascent = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.InternalLeading = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.ExternalLeading = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.Italic = entry.Data.ReadByte(ref offset);
dirEntry.Entry.Underline = entry.Data.ReadByte(ref offset);
dirEntry.Entry.StrikeOut = entry.Data.ReadByte(ref offset);
dirEntry.Entry.Weight = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.CharSet = entry.Data.ReadByte(ref offset);
dirEntry.Entry.PixWidth = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.PixHeight = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.PitchAndFamily = entry.Data.ReadByte(ref offset);
dirEntry.Entry.AvgWidth = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.MaxWidth = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.FirstChar = entry.Data.ReadByte(ref offset);
dirEntry.Entry.LastChar = entry.Data.ReadByte(ref offset);
dirEntry.Entry.DefaultChar = entry.Data.ReadByte(ref offset);
dirEntry.Entry.BreakChar = entry.Data.ReadByte(ref offset);
dirEntry.Entry.WidthBytes = entry.Data.ReadUInt16LittleEndian(ref offset);
dirEntry.Entry.Device = entry.Data.ReadUInt32LittleEndian(ref offset);
dirEntry.Entry.Face = entry.Data.ReadUInt32LittleEndian(ref offset);
dirEntry.Entry.Reserved = entry.Data.ReadUInt32LittleEndian(ref offset);
// TODO: Determine how to read these two? Immediately after?
dirEntry.Entry.DeviceName = entry.Data.ReadNullTerminatedAnsiString(ref offset);
dirEntry.Entry.FaceName = entry.Data.ReadNullTerminatedAnsiString(ref offset);
fontGroupHeader.DE[i] = dirEntry;
}
}
// TODO: Implement entry parsing
return fontGroupHeader;
}
/// <summary>
/// Read resource data as a menu
/// </summary>
/// <param name="entry">Resource data entry to parse into a menu</param>
/// <returns>A filled menu on success, null on error</returns>
public static MenuResource? AsMenu(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterator
int offset = 0;
// Create the output object
var menuResource = new MenuResource();
// Try to read the version for an extended header
int versionOffset = 0;
int possibleVersion = entry.Data.ReadUInt16LittleEndian(ref versionOffset);
if (possibleVersion == 0x0001)
{
#region Extended menu header
var menuHeaderExtended = ParseMenuHeaderExtended(entry.Data, ref offset);
menuResource.MenuHeader = menuHeaderExtended;
#endregion
#region Extended dialog item templates
var extendedMenuItems = new List<MenuItemExtended>();
if (offset != 0)
{
offset = menuHeaderExtended.Offset;
while (offset < entry.Data.Length)
{
var extendedMenuItem = ParseMenuItemExtended(entry.Data, ref offset);
extendedMenuItems.Add(extendedMenuItem);
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
}
}
menuResource.MenuItems = [.. extendedMenuItems];
#endregion
}
else
{
#region Menu header
menuResource.MenuHeader = ParseNormalMenuHeader(entry.Data, ref offset);
#endregion
#region Menu items
var menuItems = new List<MenuItem>();
while (offset < entry.Data.Length)
{
// Determine if this is a popup
int flagsOffset = offset;
var initialFlags = (MenuFlags)entry.Data.ReadUInt16LittleEndian(ref flagsOffset);
MenuItem? menuItem;
#if NET20 || NET35
if ((initialFlags & MenuFlags.MF_POPUP) != 0)
#else
if (initialFlags.HasFlag(MenuFlags.MF_POPUP))
#endif
menuItem = ParsePopupMenuItem(entry.Data, ref offset);
else
menuItem = ParseNormalMenuItem(entry.Data, ref offset);
// Align to the DWORD boundary if we're not at the end
entry.Data.AlignToBoundary(ref offset, 4);
if (menuItem == null)
return null;
menuItems.Add(menuItem);
}
menuResource.MenuItems = [.. menuItems];
#endregion
}
return menuResource;
}
/// <summary>
/// Read resource data as a message table resource
/// </summary>
/// <param name="entry">Resource data entry to parse into a message table resource</param>
/// <returns>A filled message table resource on success, null on error</returns>
public static MessageResourceData? AsMessageResourceData(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterator
int offset = 0;
// Create the output object
var messageResourceData = new MessageResourceData();
// Message resource blocks
messageResourceData.NumberOfBlocks = entry.Data.ReadUInt32LittleEndian(ref offset);
if (messageResourceData.NumberOfBlocks > 0)
{
var messageResourceBlocks = new List<MessageResourceBlock>();
for (int i = 0; i < messageResourceData.NumberOfBlocks; i++)
{
var messageResourceBlock = ParseMessageResourceBlock(entry.Data, ref offset);
messageResourceBlocks.Add(messageResourceBlock);
}
messageResourceData.Blocks = [.. messageResourceBlocks];
}
// Message resource entries
if (messageResourceData.Blocks != null && messageResourceData.Blocks.Length != 0)
{
var messageResourceEntries = new Dictionary<uint, MessageResourceEntry?>();
for (int i = 0; i < messageResourceData.Blocks.Length; i++)
{
var messageResourceBlock = messageResourceData.Blocks[i];
if (messageResourceBlock == null)
continue;
offset = (int)messageResourceBlock.OffsetToEntries;
for (uint j = messageResourceBlock.LowId; j <= messageResourceBlock.HighId; j++)
{
var messageResourceEntry = new MessageResourceEntry();
messageResourceEntry.Length = entry.Data.ReadUInt16LittleEndian(ref offset);
messageResourceEntry.Flags = entry.Data.ReadUInt16LittleEndian(ref offset);
Encoding textEncoding = messageResourceEntry.Flags == 0x0001 ? Encoding.Unicode : Encoding.ASCII;
byte[]? textArray = entry.Data.ReadBytes(ref offset, messageResourceEntry.Length - 4);
if (textArray != null)
messageResourceEntry.Text = textEncoding.GetString(textArray);
messageResourceEntries[j] = messageResourceEntry;
}
}
messageResourceData.Entries = messageResourceEntries;
}
return messageResourceData;
}
/// <summary>
/// Read byte data as a string file info resource
/// </summary>
/// <param name="data">Data to parse into a string file info</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled string file info resource on success, null on error</returns>
public static StringFileInfo? AsStringFileInfo(byte[] data, ref int offset)
{
var stringFileInfo = new StringFileInfo();
// Cache the initial offset
int currentOffset = offset;
stringFileInfo.Length = data.ReadUInt16LittleEndian(ref offset);
stringFileInfo.ValueLength = data.ReadUInt16LittleEndian(ref offset);
stringFileInfo.ResourceType = (VersionResourceType)data.ReadUInt16LittleEndian(ref offset);
stringFileInfo.Key = data.ReadNullTerminatedUnicodeString(ref offset);
if (stringFileInfo.Key != "StringFileInfo")
{
offset -= 6 + ((stringFileInfo.Key?.Length ?? 0 + 1) * 2);
return null;
}
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
var stringFileInfoChildren = new List<StringTable>();
while ((offset - currentOffset) < stringFileInfo.Length)
{
var stringTable = new StringTable();
stringTable.Length = data.ReadUInt16LittleEndian(ref offset);
stringTable.ValueLength = data.ReadUInt16LittleEndian(ref offset);
stringTable.ResourceType = (VersionResourceType)data.ReadUInt16LittleEndian(ref offset);
stringTable.Key = data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
var stringTableChildren = new List<StringData>();
while ((offset - currentOffset) < stringTable.Length)
{
var stringData = new StringData();
int dataStartOffset = offset;
stringData.Length = data.ReadUInt16LittleEndian(ref offset);
stringData.ValueLength = data.ReadUInt16LittleEndian(ref offset);
stringData.ResourceType = (VersionResourceType)data.ReadUInt16LittleEndian(ref offset);
stringData.Key = data.ReadNullTerminatedUnicodeString(ref offset);
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
if (stringData.ValueLength > 0)
{
int bytesReadable = Math.Min(stringData.ValueLength * sizeof(ushort), stringData.Length - (offset - dataStartOffset));
byte[] valueBytes = data.ReadBytes(ref offset, bytesReadable);
stringData.Value = Encoding.Unicode.GetString(valueBytes);
}
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
stringTableChildren.Add(stringData);
if (stringData.Length == 0 && stringData.ValueLength == 0)
break;
}
stringTable.Children = [.. stringTableChildren];
stringFileInfoChildren.Add(stringTable);
}
stringFileInfo.Children = [.. stringFileInfoChildren];
return stringFileInfo;
}
/// <summary>
/// Read resource data as a string table resource
/// </summary>
/// <param name="entry">Resource data entry to parse into a string table resource</param>
/// <returns>A filled string table resource on success, null on error</returns>
public static Dictionary<int, string?>? AsStringTable(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterators
int offset = 0, stringIndex = 0;
// Create the output table
var stringTable = new Dictionary<int, string?>();
// Loop through and add
while (offset < entry.Data.Length)
{
string? stringValue = entry.Data.ReadPrefixedUnicodeString(ref offset);
if (stringValue != null)
{
stringValue = stringValue.Replace("\n", "\\n").Replace("\r", newValue: "\\r");
stringTable[stringIndex++] = stringValue;
}
}
return stringTable;
}
/// <summary>
/// Read byte data as a var file info resource
/// </summary>
/// <param name="data">Data to parse into a var file info</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled var file info resource on success, null on error</returns>
public static VarFileInfo? AsVarFileInfo(byte[] data, ref int offset)
{
var varFileInfo = new VarFileInfo();
// Cache the initial offset
int initialOffset = offset;
varFileInfo.Length = data.ReadUInt16LittleEndian(ref offset);
varFileInfo.ValueLength = data.ReadUInt16LittleEndian(ref offset);
varFileInfo.ResourceType = (VersionResourceType)data.ReadUInt16LittleEndian(ref offset);
varFileInfo.Key = data.ReadNullTerminatedUnicodeString(ref offset);
if (varFileInfo.Key != "VarFileInfo")
return null;
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
var varFileInfoChildren = new List<VarData>();
while ((offset - initialOffset) < varFileInfo.Length)
{
var varData = new VarData();
varData.Length = data.ReadUInt16LittleEndian(ref offset);
varData.ValueLength = data.ReadUInt16LittleEndian(ref offset);
varData.ResourceType = (VersionResourceType)data.ReadUInt16LittleEndian(ref offset);
varData.Key = data.ReadNullTerminatedUnicodeString(ref offset);
if (varData.Key != "Translation")
{
offset -= 6 + ((varData.Key?.Length ?? 0 + 1) * 2);
return null;
}
// Align to the DWORD boundary if we're not at the end
data.AlignToBoundary(ref offset, 4);
// Cache the current offset
int currentOffset = offset;
var varDataValue = new List<uint>();
while ((offset - currentOffset) < varData.ValueLength)
{
uint languageAndCodeIdentifierPair = data.ReadUInt32LittleEndian(ref offset);
varDataValue.Add(languageAndCodeIdentifierPair);
}
varData.Value = [.. varDataValue];
varFileInfoChildren.Add(varData);
}
varFileInfo.Children = [.. varFileInfoChildren];
return varFileInfo;
}
/// <summary>
/// Read resource data as a version info resource
/// </summary>
/// <param name="entry">Resource data entry to parse into a version info resource</param>
/// <returns>A filled version info resource on success, null on error</returns>
public static VersionInfo? AsVersionInfo(this ResourceDataEntry? entry)
{
// If we have an invalid entry, just skip
if (entry?.Data == null)
return null;
// Initialize the iterator
int offset = 0;
// Create the output object
var versionInfo = new VersionInfo();
versionInfo.Length = entry.Data.ReadUInt16LittleEndian(ref offset);
versionInfo.ValueLength = entry.Data.ReadUInt16LittleEndian(ref offset);
versionInfo.ResourceType = (VersionResourceType)entry.Data.ReadUInt16LittleEndian(ref offset);
versionInfo.Key = entry.Data.ReadNullTerminatedUnicodeString(ref offset);
if (versionInfo.Key != "VS_VERSION_INFO")
return null;
while (offset < entry.Data.Length && (offset % 4) != 0)
versionInfo.Padding1 = entry.Data.ReadUInt16LittleEndian(ref offset);
// Read fixed file info
if (versionInfo.ValueLength > 0 && offset + versionInfo.ValueLength <= entry.Data.Length)
{
var fixedFileInfo = ParseFixedFileInfo(entry.Data, ref offset);
if (fixedFileInfo?.Signature != 0xFEEF04BD)
return null;
versionInfo.Value = fixedFileInfo;
}
while (offset < entry.Data.Length && (offset % 4) != 0)
versionInfo.Padding2 = entry.Data.ReadUInt16LittleEndian(ref offset);
// Determine if we have a StringFileInfo or VarFileInfo twice
ReadInfoSection(entry.Data, ref offset, versionInfo);
ReadInfoSection(entry.Data, ref offset, versionInfo);
return versionInfo;
}
/// <summary>
/// Parse a byte array into a AcceleratorTableEntry
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled AcceleratorTableEntry on success, null on error</returns>
public static AcceleratorTableEntry ParseAcceleratorTableEntry(this byte[] data, ref int offset)
{
var obj = new AcceleratorTableEntry();
obj.Flags = (AcceleratorTableFlags)data.ReadUInt16LittleEndian(ref offset);
obj.Ansi = data.ReadUInt16LittleEndian(ref offset);
obj.Id = data.ReadUInt16LittleEndian(ref offset);
obj.Padding = data.ReadUInt16LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a FixedFileInfo
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled FixedFileInfo on success, null on error</returns>
public static FixedFileInfo ParseFixedFileInfo(this byte[] data, ref int offset)
{
var obj = new FixedFileInfo();
obj.Signature = data.ReadUInt32LittleEndian(ref offset);
obj.StrucVersion = data.ReadUInt32LittleEndian(ref offset);
obj.FileVersionMS = data.ReadUInt32LittleEndian(ref offset);
obj.FileVersionLS = data.ReadUInt32LittleEndian(ref offset);
obj.ProductVersionMS = data.ReadUInt32LittleEndian(ref offset);
obj.ProductVersionLS = data.ReadUInt32LittleEndian(ref offset);
obj.FileFlagsMask = data.ReadUInt32LittleEndian(ref offset);
obj.FileFlags = (FixedFileInfoFlags)data.ReadUInt32LittleEndian(ref offset);
obj.FileOS = (FixedFileInfoOS)data.ReadUInt32LittleEndian(ref offset);
obj.FileType = (FixedFileInfoFileType)data.ReadUInt32LittleEndian(ref offset);
obj.FileSubtype = (FixedFileInfoFileSubtype)data.ReadUInt32LittleEndian(ref offset);
obj.FileDateMS = data.ReadUInt32LittleEndian(ref offset);
obj.FileDateLS = data.ReadUInt32LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a MenuHeaderExtended
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled MenuHeaderExtended on success, null on error</returns>
public static MenuHeaderExtended ParseMenuHeaderExtended(this byte[] data, ref int offset)
{
var obj = new MenuHeaderExtended();
obj.Version = data.ReadUInt16LittleEndian(ref offset);
obj.Offset = data.ReadUInt16LittleEndian(ref offset);
obj.HelpID = data.ReadUInt32LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a MenuItemExtended
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled MenuItemExtended on success, null on error</returns>
public static MenuItemExtended ParseMenuItemExtended(this byte[] data, ref int offset)
{
var obj = new MenuItemExtended();
obj.ItemType = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.State = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.ID = data.ReadUInt32LittleEndian(ref offset);
obj.Flags = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.MenuText = data.ReadNullTerminatedUnicodeString(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a MessageResourceBlock
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled MessageResourceBlock on success, null on error</returns>
public static MessageResourceBlock ParseMessageResourceBlock(this byte[] data, ref int offset)
{
var obj = new MessageResourceBlock();
obj.LowId = data.ReadUInt32LittleEndian(ref offset);
obj.HighId = data.ReadUInt32LittleEndian(ref offset);
obj.OffsetToEntries = data.ReadUInt32LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a NormalMenuHeader
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled NormalMenuHeader on success, null on error</returns>
public static NormalMenuHeader ParseNormalMenuHeader(this byte[] data, ref int offset)
{
var obj = new NormalMenuHeader();
obj.Version = data.ReadUInt16LittleEndian(ref offset);
obj.HeaderSize = data.ReadUInt16LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a NormalMenuItem
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled NormalMenuItem on success, null on error</returns>
public static NormalMenuItem ParseNormalMenuItem(this byte[] data, ref int offset)
{
var obj = new NormalMenuItem();
obj.NormalResInfo = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.NormalMenuText = data.ReadNullTerminatedUnicodeString(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a PopupMenuItem
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled PopupMenuItem on success, null on error</returns>
public static PopupMenuItem ParsePopupMenuItem(this byte[] data, ref int offset)
{
var obj = new PopupMenuItem();
obj.PopupItemType = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.PopupState = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.PopupID = data.ReadUInt32LittleEndian(ref offset);
obj.PopupResInfo = (MenuFlags)data.ReadUInt32LittleEndian(ref offset);
obj.PopupMenuText = data.ReadNullTerminatedUnicodeString(ref offset);
return obj;
}
/// <summary>
/// Parse a byte array into a ResourceHeader
/// </summary>
/// <param name="data">Data to parse</param>
/// <param name="offset">Offset into the byte array</param>
/// <returns>A filled ResourceHeader on success, null on error</returns>
public static ResourceHeader ParseResourceHeader(this byte[] data, ref int offset)
{
// Read in the table
var obj = new ResourceHeader();
obj.DataSize = data.ReadUInt32LittleEndian(ref offset);
obj.HeaderSize = data.ReadUInt32LittleEndian(ref offset);
obj.ResourceType = (ResourceType)data.ReadUInt32LittleEndian(ref offset); // TODO: Could be a string too
obj.Name = data.ReadUInt32LittleEndian(ref offset); // TODO: Could be a string too
obj.DataVersion = data.ReadUInt32LittleEndian(ref offset);
obj.MemoryFlags = (MemoryFlags)data.ReadUInt16LittleEndian(ref offset);
obj.LanguageId = data.ReadUInt16LittleEndian(ref offset);
obj.Version = data.ReadUInt32LittleEndian(ref offset);
obj.Characteristics = data.ReadUInt32LittleEndian(ref offset);
return obj;
}
/// <summary>
/// Read either a `StringFileInfo` or `VarFileInfo` based on the key
/// </summary>
/// <param name="entry"></param>
/// <param name="offset"></param>
/// <param name="versionInfo"></param>
/// <returns></returns>
private static void ReadInfoSection(byte[] data, ref int offset, VersionInfo versionInfo)
{
// If the offset is invalid, don't move the pointer
if (offset < 0 || offset >= versionInfo.Length)
return;
// Cache the current offset for reading
int currentOffset = offset;
offset += 6;
string? nextKey = data.ReadNullTerminatedUnicodeString(ref offset);
offset = currentOffset;
if (nextKey == "StringFileInfo")
{
var stringFileInfo = AsStringFileInfo(data, ref offset);
versionInfo.StringFileInfo = stringFileInfo;
}
else if (nextKey == "VarFileInfo")
{
var varFileInfo = AsVarFileInfo(data, ref offset);
versionInfo.VarFileInfo = varFileInfo;
}
}
#endregion
#region Helpers
/// <summary>
/// Align the array position to a byte-size boundary
/// </summary>
/// <param name="input">Input array to try aligning</param>
/// <param name="offset">Offset into the byte array</param>
/// <param name="alignment">Number of bytes to align on</param>
/// <returns>True if the array could be aligned, false otherwise</returns>
private static bool AlignToBoundary(this byte[]? input, ref int offset, byte alignment)
{
// If the array is invalid
if (input == null || input.Length == 0)
return false;
// If already at the end of the array
if (offset >= input.Length)
return false;
// Align the stream position
while (offset % alignment != 0 && offset < input.Length)
{
_ = input.ReadByteValue(ref offset);
}
// Return if the alignment completed
return offset % alignment == 0;
}
#endregion
}
}