mirror of
https://github.com/SabreTools/SabreTools.Serialization.git
synced 2026-09-21 22:35:06 +00:00
Start parsing some PKZIP extras
This commit is contained in:
Matt Nadareski
@@ -49,7 +49,7 @@ namespace SabreTools.Serialization.Deserializers
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{
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// Central Directory File Header
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case CentralDirectoryFileHeaderSignature:
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var cdr = ParseCentralDirectoryFileHeader(data);
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var cdr = ParseCentralDirectoryFileHeader(data, out _);
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if (cdr == null)
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return null;
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@@ -195,9 +195,10 @@ namespace SabreTools.Serialization.Deserializers
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/// </summary>
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/// <param name="data">Stream to parse</param>
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/// <returns>Filled central directory file header on success, null on error</returns>
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public static CentralDirectoryFileHeader? ParseCentralDirectoryFileHeader(Stream data)
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public static CentralDirectoryFileHeader? ParseCentralDirectoryFileHeader(Stream data, out ExtensibleDataField[]? extraFields)
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{
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var obj = new CentralDirectoryFileHeader();
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extraFields = null;
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obj.Signature = data.ReadUInt32LittleEndian();
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if (obj.Signature != CentralDirectoryFileHeaderSignature)
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@@ -244,8 +245,10 @@ namespace SabreTools.Serialization.Deserializers
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if (extraBytes.Length != obj.ExtraFieldLength)
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return null;
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// TODO: This should be decoded into the proper extras field type
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obj.ExtraField = extraBytes;
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// TODO: This should live on the model instead of the byte representation
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extraFields = ParseExtraFields(obj, obj.ExtraField);
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}
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if (obj.FileCommentLength > 0 && data.Position + obj.FileCommentLength <= data.Length)
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{
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@@ -449,10 +452,24 @@ namespace SabreTools.Serialization.Deserializers
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#region Local File Header
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localFileHeader = ParseLocalFileHeader(data);
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localFileHeader = ParseLocalFileHeader(data, out var extraFields);
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if (localFileHeader == null)
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return false;
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ulong compressedSize = localFileHeader.CompressedSize;
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if (extraFields != null)
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{
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foreach (var field in extraFields)
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{
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if (field is not Zip64ExtendedInformationExtraField infoField)
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continue;
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if (infoField.CompressedSize == null)
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continue;
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compressedSize = infoField.CompressedSize.Value;
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}
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}
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#endregion
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#region Encryption Header
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@@ -480,8 +497,8 @@ namespace SabreTools.Serialization.Deserializers
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#region File Data
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// Try to read the file data
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fileData = data.ReadBytes((int)localFileHeader.CompressedSize);
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if (fileData.Length < localFileHeader.CompressedSize)
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fileData = data.ReadBytes((int)compressedSize);
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if (fileData.Length < (long)compressedSize)
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return false;
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#endregion
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@@ -542,9 +559,10 @@ namespace SabreTools.Serialization.Deserializers
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/// </summary>
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/// <param name="data">Stream to parse</param>
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/// <returns>Filled local file header on success, null on error</returns>
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public static LocalFileHeader? ParseLocalFileHeader(Stream data)
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public static LocalFileHeader? ParseLocalFileHeader(Stream data, out ExtensibleDataField[]? extraFields)
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{
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var obj = new LocalFileHeader();
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extraFields = null;
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obj.Signature = data.ReadUInt32LittleEndian();
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if (obj.Signature != LocalFileHeaderSignature)
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@@ -561,7 +579,7 @@ namespace SabreTools.Serialization.Deserializers
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obj.FileNameLength = data.ReadUInt16LittleEndian();
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obj.ExtraFieldLength = data.ReadUInt16LittleEndian();
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#if NET20 || NET35
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#if NET20 || NET35
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bool utf8 = (obj.Flags & GeneralPurposeBitFlags.LanguageEncodingFlag) != 0;
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#else
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bool utf8 = obj.Flags.HasFlag(GeneralPurposeBitFlags.LanguageEncodingFlag);
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@@ -584,13 +602,405 @@ namespace SabreTools.Serialization.Deserializers
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if (extraBytes.Length != obj.ExtraFieldLength)
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return null;
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// TODO: This should be decoded into the proper extras field type
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obj.ExtraField = extraBytes;
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// TODO: This should live on the model instead of the byte representation
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extraFields = ParseExtraFields(obj, obj.ExtraField);
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}
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return obj;
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}
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#region Extras Fields
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/// <summary>
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/// Process all extensible data fields in a central directory file extras block
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/// </summary>
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/// <param name="data">Byte array to parse</param>
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/// <returns>Array of data fields on success, null otherwise</returns>
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private static ExtensibleDataField[]? ParseExtraFields(CentralDirectoryFileHeader header, byte[] data)
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{
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List<ExtensibleDataField> fields = [];
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int offset = 0;
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while (offset < data.Length)
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{
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// Peek at the next header ID
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HeaderID id = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
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offset -= 2;
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// Read based on the ID
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var field = id switch
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{
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HeaderID.Zip64ExtendedInformation => ParseZip64ExtendedInformationExtraField(data, ref offset, header),
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HeaderID.AVInfo => ParseUnknownExtraField(data, ref offset), // TODO: Implement model
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HeaderID.ExtendedLanguageEncodingData => ParseUnknownExtraField(data, ref offset), // TODO: Implement model
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HeaderID.OS2 => ParseOS2ExtraField(data, ref offset),
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HeaderID.NTFS => ParseNTFSExtraField(data, ref offset),
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HeaderID.OpenVMS => ParseOpenVMSExtraField(data, ref offset),
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HeaderID.UNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.FileStreamFork => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PatchDescriptor => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PKCSStore => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.X509IndividualFile => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.X509CentralDirectory => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.StrongEncryptionHeader => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.RecordManagementControls => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PKCSCertificateList => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.Timestamp => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PolicyDecryptionKey => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.SmartcryptKeyProvider => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.SmartcryptPolicyKeyData => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.IBMS390AttributesUncompressed => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.IBMS390AttributesCompressed => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.POSZIP4690 => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.Macintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PixarUSD => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh135Plus => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh135PlusAlt => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPMacintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.AcornSparkFS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.WindowsNTSecurityDescriptor => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.VMCMS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.MVS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.THEOSold => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.FWKCSMD5 => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.OS2AccessControlList => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPOpenVMS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.MacintoshSmartzip => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.XceedOriginalLocation => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ADSVS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ExtendedTimestamp => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.XceedUnicode => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPUNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPUnicodeComment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.BeOSBeBox => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.THEOS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPUnicodePath => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.AtheOSSyllable => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ASiUNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPUNIXNew => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.InfoZIPUNIXNewer => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.DataStreamAlignment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.MicrosoftOpenPackagingGrowthHint => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.JavaJAR => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.AndroidZIPAlignment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.KoreanZIPCodePage => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.SMSQDOS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.AExEncryptionStructure => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.Unknown => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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_ => ParseUnknownExtraField(data, ref offset),
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};
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if (field != null)
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fields.Add(field);
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}
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return [.. fields];
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}
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/// <summary>
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/// Process all extensible data fields in a local file extras block
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/// </summary>
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/// <param name="data">Byte array to parse</param>
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/// <returns>Array of data fields on success, null otherwise</returns>
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private static ExtensibleDataField[]? ParseExtraFields(LocalFileHeader header, byte[] data)
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{
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List<ExtensibleDataField> fields = [];
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int offset = 0;
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while (offset < data.Length)
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{
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// Peek at the next header ID
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HeaderID id = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
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offset -= 2;
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// Read based on the ID
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var field = id switch
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{
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HeaderID.Zip64ExtendedInformation => ParseZip64ExtendedInformationExtraField(data, ref offset, header),
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HeaderID.AVInfo => ParseUnknownExtraField(data, ref offset), // TODO: Implement model
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HeaderID.ExtendedLanguageEncodingData => ParseUnknownExtraField(data, ref offset), // TODO: Implement model
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HeaderID.OS2 => ParseOS2ExtraField(data, ref offset),
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HeaderID.NTFS => ParseNTFSExtraField(data, ref offset),
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HeaderID.OpenVMS => ParseOpenVMSExtraField(data, ref offset),
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HeaderID.UNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.FileStreamFork => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PatchDescriptor => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PKCSStore => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.X509IndividualFile => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.X509CentralDirectory => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.StrongEncryptionHeader => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.RecordManagementControls => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PKCSCertificateList => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.Timestamp => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.PolicyDecryptionKey => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.SmartcryptKeyProvider => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.SmartcryptPolicyKeyData => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.IBMS390AttributesUncompressed => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.IBMS390AttributesCompressed => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.POSZIP4690 => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.Macintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.PixarUSD => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh135Plus => ParseUnknownExtraField(data, ref offset), // TODO: Implement
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HeaderID.ZipItMacintosh135PlusAlt => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.InfoZIPMacintosh => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.AcornSparkFS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.WindowsNTSecurityDescriptor => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.VMCMS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.MVS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.THEOSold => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.FWKCSMD5 => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.OS2AccessControlList => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.InfoZIPOpenVMS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.MacintoshSmartzip => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.XceedOriginalLocation => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.ADSVS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.ExtendedTimestamp => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.XceedUnicode => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.InfoZIPUNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.InfoZIPUnicodeComment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.BeOSBeBox => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.THEOS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.InfoZIPUnicodePath => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.AtheOSSyllable => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.ASiUNIX => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.InfoZIPUNIXNew => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.InfoZIPUNIXNewer => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.DataStreamAlignment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.MicrosoftOpenPackagingGrowthHint => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.JavaJAR => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.AndroidZIPAlignment => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.KoreanZIPCodePage => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.SMSQDOS => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
||||
HeaderID.AExEncryptionStructure => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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HeaderID.Unknown => ParseUnknownExtraField(data, ref offset), // TODO: Implement
|
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|
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_ => ParseUnknownExtraField(data, ref offset),
|
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};
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if (field != null)
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fields.Add(field);
|
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}
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return [.. fields];
|
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}
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/// <summary>
|
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/// Parse a Stream into an unknown extras field
|
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/// </summary>
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/// <param name="data">Byte array to parse</param>
|
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/// <param name="offset">Offset into the byte array</param>
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/// <returns>Filled unknown extras field on success, null on error</returns>
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private static ExtensibleDataField? ParseUnknownExtraField(byte[] data, ref int offset)
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{
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_ = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
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ushort dataSize = data.ReadUInt16LittleEndian(ref offset);
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||||
_ = data.ReadBytes(ref offset, dataSize);
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||||
return null;
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}
|
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|
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/// <summary>
|
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/// Parse a Stream into a ZIP64 extended information extra field
|
||||
/// </summary>
|
||||
/// <param name="data">Byte array to parse</param>
|
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/// <param name="offset">Offset into the byte array</param>
|
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/// <returns>Filled ZIP64 extended information extra field on success, null on error</returns>
|
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private static Zip64ExtendedInformationExtraField? ParseZip64ExtendedInformationExtraField(byte[] data, ref int offset, CentralDirectoryFileHeader header)
|
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{
|
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var obj = new Zip64ExtendedInformationExtraField();
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||||
|
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obj.HeaderID = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
|
||||
if (obj.HeaderID != HeaderID.Zip64ExtendedInformation)
|
||||
return null;
|
||||
|
||||
obj.DataSize = data.ReadUInt16LittleEndian(ref offset);
|
||||
|
||||
int bytesRemaining = obj.DataSize;
|
||||
if (header.UncompressedSize == uint.MaxValue)
|
||||
{
|
||||
obj.OriginalSize = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
if (header.CompressedSize == uint.MaxValue)
|
||||
{
|
||||
obj.CompressedSize = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
if (header.RelativeOffsetOfLocalHeader == uint.MaxValue)
|
||||
{
|
||||
obj.RelativeHeaderOffset = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
if (header.DiskNumberStart == ushort.MaxValue)
|
||||
{
|
||||
obj.DiskStartNumber = data.ReadUInt32LittleEndian(ref offset);
|
||||
bytesRemaining -= 4;
|
||||
}
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Parse a Stream into a ZIP64 extended information extra field
|
||||
/// </summary>
|
||||
/// <param name="data">Byte array to parse</param>
|
||||
/// <param name="offset">Offset into the byte array</param>
|
||||
/// <returns>Filled ZIP64 extended information extra field on success, null on error</returns>
|
||||
private static Zip64ExtendedInformationExtraField? ParseZip64ExtendedInformationExtraField(byte[] data, ref int offset, LocalFileHeader header)
|
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{
|
||||
var obj = new Zip64ExtendedInformationExtraField();
|
||||
|
||||
obj.HeaderID = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
|
||||
if (obj.HeaderID != HeaderID.Zip64ExtendedInformation)
|
||||
return null;
|
||||
|
||||
obj.DataSize = data.ReadUInt16LittleEndian(ref offset);
|
||||
|
||||
int bytesRemaining = obj.DataSize;
|
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if (header.UncompressedSize == uint.MaxValue)
|
||||
{
|
||||
obj.OriginalSize = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
if (header.CompressedSize == uint.MaxValue)
|
||||
{
|
||||
obj.CompressedSize = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
// TODO: These rely on values from the central directory
|
||||
if (bytesRemaining >= 8)
|
||||
{
|
||||
obj.RelativeHeaderOffset = data.ReadUInt64LittleEndian(ref offset);
|
||||
bytesRemaining -= 8;
|
||||
}
|
||||
|
||||
if (bytesRemaining >= 4)
|
||||
obj.DiskStartNumber = data.ReadUInt32LittleEndian(ref offset);
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Parse a Stream into an OS/2 extra field
|
||||
/// </summary>
|
||||
/// <param name="data">Byte array to parse</param>
|
||||
/// <param name="offset">Offset into the byte array</param>
|
||||
/// <returns>Filled OS/2 extra field on success, null on error</returns>
|
||||
private static OS2ExtraField? ParseOS2ExtraField(byte[] data, ref int offset)
|
||||
{
|
||||
var obj = new OS2ExtraField();
|
||||
|
||||
obj.HeaderID = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
|
||||
if (obj.HeaderID != HeaderID.OS2)
|
||||
return null;
|
||||
|
||||
obj.DataSize = data.ReadUInt16LittleEndian(ref offset);
|
||||
obj.BSize = data.ReadUInt32LittleEndian(ref offset);
|
||||
obj.CType = data.ReadUInt16LittleEndian(ref offset);
|
||||
obj.EACRC = data.ReadUInt32LittleEndian(ref offset);
|
||||
obj.Var = data.ReadBytes(ref offset, obj.DataSize - 10);
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Parse a Stream into a NTFS extra field
|
||||
/// </summary>
|
||||
/// <param name="data">Byte array to parse</param>
|
||||
/// <param name="offset">Offset into the byte array</param>
|
||||
/// <returns>Filled NTFS field on success, null on error</returns>
|
||||
private static NTFSExtraField? ParseNTFSExtraField(byte[] data, ref int offset)
|
||||
{
|
||||
var obj = new NTFSExtraField();
|
||||
|
||||
obj.HeaderID = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
|
||||
if (obj.HeaderID != HeaderID.NTFS)
|
||||
return null;
|
||||
|
||||
obj.DataSize = data.ReadUInt16LittleEndian(ref offset);
|
||||
obj.Reserved = data.ReadUInt32LittleEndian(ref offset);
|
||||
|
||||
List<ushort> tags = [];
|
||||
List<ushort> sizes = [];
|
||||
List<byte[]> datas = [];
|
||||
|
||||
int bytesRemaining = obj.DataSize - 4;
|
||||
while (bytesRemaining > 0)
|
||||
{
|
||||
ushort tag = data.ReadUInt16LittleEndian(ref offset);
|
||||
ushort size = data.ReadUInt16LittleEndian(ref offset);
|
||||
byte[] datum = data.ReadBytes(ref offset, size);
|
||||
|
||||
tags.Add(tag);
|
||||
sizes.Add(size);
|
||||
datas.Add(datum);
|
||||
|
||||
bytesRemaining -= 4 + size;
|
||||
}
|
||||
|
||||
obj.Tags = [.. tags];
|
||||
obj.Size = [.. sizes];
|
||||
obj.Vars = null; // TODO: Fix once this becomes a proper array of arrays
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Parse a Stream into an OpenVMS extra field
|
||||
/// </summary>
|
||||
/// <param name="data">Byte array to parse</param>
|
||||
/// <param name="offset">Offset into the byte array</param>
|
||||
/// <returns>Filled OpenVMS extra field on success, null on error</returns>
|
||||
private static OpenVMSExtraField? ParseOpenVMSExtraField(byte[] data, ref int offset)
|
||||
{
|
||||
var obj = new OpenVMSExtraField();
|
||||
|
||||
obj.HeaderID = (HeaderID)data.ReadUInt16LittleEndian(ref offset);
|
||||
if (obj.HeaderID != HeaderID.OpenVMS)
|
||||
return null;
|
||||
|
||||
obj.DataSize = data.ReadUInt16LittleEndian(ref offset);
|
||||
obj.CRC = data.ReadUInt32LittleEndian(ref offset);
|
||||
|
||||
List<ushort> tags = [];
|
||||
List<ushort> sizes = [];
|
||||
List<byte[]> datas = [];
|
||||
|
||||
int bytesRemaining = obj.DataSize - 4;
|
||||
while (bytesRemaining > 0)
|
||||
{
|
||||
ushort tag = data.ReadUInt16LittleEndian(ref offset);
|
||||
ushort size = data.ReadUInt16LittleEndian(ref offset);
|
||||
byte[] datum = data.ReadBytes(ref offset, size);
|
||||
|
||||
tags.Add(tag);
|
||||
sizes.Add(size);
|
||||
datas.Add(datum);
|
||||
|
||||
bytesRemaining -= 4 + size;
|
||||
}
|
||||
|
||||
obj.Tags = [.. tags];
|
||||
obj.Size = [.. sizes];
|
||||
obj.Vars = null; // TODO: Fix once this becomes a proper array of arrays
|
||||
|
||||
return obj;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Helpers
|
||||
|
||||
/// <summary>
|
||||
/// Determine if a data descriptor is 64-bit
|
||||
/// </summary>
|
||||
@@ -628,5 +1038,7 @@ namespace SabreTools.Serialization.Deserializers
|
||||
// Assume 64-bit otherwise
|
||||
return true;
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user