internal IEnumerable <ZipHeader> ReadStreamHeader(Stream stream)
{
RewindableStream iteratorVariable0;
if (stream is RewindableStream)
{
iteratorVariable0 = stream as RewindableStream;
}
else
{
iteratorVariable0 = new RewindableStream(stream);
}
while (true)
{
ZipHeader iteratorVariable1 = null;
BinaryReader reader = new BinaryReader(iteratorVariable0);
if ((this.lastEntryHeader != null) && FlagUtility.HasFlag <HeaderFlags>(this.lastEntryHeader.Flags, HeaderFlags.UsePostDataDescriptor))
{
reader = (this.lastEntryHeader.Part as StreamingZipFilePart).FixStreamedFileLocation(ref iteratorVariable0);
long position = iteratorVariable0.Position;
uint num2 = reader.ReadUInt32();
if (num2 == 0x8074b50)
{
num2 = reader.ReadUInt32();
}
this.lastEntryHeader.Crc = num2;
this.lastEntryHeader.CompressedSize = reader.ReadUInt32();
this.lastEntryHeader.UncompressedSize = reader.ReadUInt32();
this.lastEntryHeader.DataStartPosition = new long?(position - this.lastEntryHeader.CompressedSize);
}
this.lastEntryHeader = null;
uint iteratorVariable3 = reader.ReadUInt32();
iteratorVariable1 = this.ReadHeader(iteratorVariable3, reader);
if (iteratorVariable1.ZipHeaderType == ZipHeaderType.LocalEntry)
{
bool isRecording = iteratorVariable0.IsRecording;
if (!isRecording)
{
iteratorVariable0.StartRecording();
}
uint headerBytes = reader.ReadUInt32();
iteratorVariable1.HasData = !ZipHeaderFactory.IsHeader(headerBytes);
iteratorVariable0.Rewind(!isRecording);
}
yield return(iteratorVariable1);
}
}
internal static IEnumerable <ZipEntry> GetEntries(Stream stream)
{
foreach (ZipHeader h in ZipHeaderFactory.ReadHeaderNonseekable(stream))
{
if (h != null)
{
switch (h.ZipHeaderType)
{
case ZipHeaderType.LocalEntry:
{
yield return(new ZipEntry(new ZipFilePart(h as LocalEntryHeader)));
}
break;
case ZipHeaderType.DirectoryEnd:
{
yield break;
}
}
}
}
}