|
static public GetExtraFields ( BinaryReader reader ) : List |
||
| reader | BinaryReader | |
| return | List |
|
internal bool LoadLocalHeaderExtraFieldAndCompressedBytesIfNeeded()
{
if (this._originallyInArchive)
{
this._archive.ArchiveStream.Seek(this._offsetOfLocalHeader, SeekOrigin.Begin);
this._lhUnknownExtraFields = ZipLocalFileHeader.GetExtraFields(this._archive.ArchiveReader);
}
if (!this._everOpenedForWrite && this._originallyInArchive)
{
this._compressedBytes = new byte[checked ((IntPtr)this._compressedSize)];
this._archive.ArchiveStream.Seek(this.OffsetOfCompressedData, SeekOrigin.Begin);
ZipHelper.ReadBytes(this._archive.ArchiveStream, this._compressedBytes, (int)this._compressedSize);
}
return(true);
}
// returns false if fails, will get called on every entry before closing in update mode
// can throw InvalidDataException
internal bool LoadLocalHeaderExtraFieldAndCompressedBytesIfNeeded()
{
string message;
// we should have made this exact call in _archive.Init through ThrowIfOpenable
Debug.Assert(IsOpenable(false, true, out message));
// load local header's extra fields. it will be null if we couldn't read for some reason
if (_originallyInArchive)
{
_archive.ArchiveStream.Seek(_offsetOfLocalHeader, SeekOrigin.Begin);
_lhUnknownExtraFields = ZipLocalFileHeader.GetExtraFields(_archive.ArchiveReader);
}
if (!_everOpenedForWrite && _originallyInArchive)
{
// we know that it is openable at this point
_compressedBytes = new byte[(_compressedSize / MaxSingleBufferSize) + 1][];
for (int i = 0; i < _compressedBytes.Length - 1; i++)
{
_compressedBytes[i] = new byte[MaxSingleBufferSize];
}
_compressedBytes[_compressedBytes.Length - 1] = new byte[_compressedSize % MaxSingleBufferSize];
_archive.ArchiveStream.Seek(OffsetOfCompressedData, SeekOrigin.Begin);
for (int i = 0; i < _compressedBytes.Length - 1; i++)
{
ZipHelper.ReadBytes(_archive.ArchiveStream, _compressedBytes[i], MaxSingleBufferSize);
}
ZipHelper.ReadBytes(_archive.ArchiveStream, _compressedBytes[_compressedBytes.Length - 1], (int)(_compressedSize % MaxSingleBufferSize));
}
return(true);
}