static void BuildTPF(Stream ms, string Author, string Comment, List <WriterZipEntry> Entries)
{
uint cdlen = 0;
uint cdpos = (uint)ms.Position;
for (int i = 0; i < Entries.Count; i++)
{
// Create and write Full entry header
ms.Write(BitConverter.GetBytes(ZipReader.dirfileheadermagic), 0, 4);
ms.Write(BitConverter.GetBytes(0), 0, 2);
ms.Write(BitConverter.GetBytes(ZipWriter.MinVers), 0, 2);
ms.Write(BitConverter.GetBytes(ZipWriter.BitFlag), 0, 2);
ms.Write(BitConverter.GetBytes(ZipWriter.ComprMethod), 0, 2);
ZipWriter.WriterZipEntry entry = Entries[i];
WriteGlobalEntryHeader(entry, ms);
}
cdlen = (uint)(ms.Position - cdpos);
// EOF Record
ms.Write(BitConverter.GetBytes(ZipReader.endofdirmagic), 0, 4);
ms.Write(BitConverter.GetBytes(0), 0, 4); // Disk No = 0, // Start disk = 0
ms.Write(BitConverter.GetBytes((ushort)Entries.Count), 0, 2);
ms.Write(BitConverter.GetBytes((ushort)Entries.Count), 0, 2);
ms.Write(BitConverter.GetBytes(cdlen), 0, 4);
ms.Write(BitConverter.GetBytes(cdpos), 0, 4);
// KFreon: This is the created by/comment section. Seems to be required for Texmod.
string createdByANDComment = Author + "\r\n" + Comment; // KFreon: Newline required by Texmod to seperate author and comment.
byte[] bytes = Encoding.Default.GetBytes(createdByANDComment);
ms.Write(BitConverter.GetBytes(createdByANDComment.Length), 0, 2);
ms.Write(bytes, 0, bytes.Length);
long streamlen = ms.Length;
ms.Seek(0, SeekOrigin.Begin); // XOR the file
// Why this way? Shouldn't be done like this
while (ms.Position < ms.Length)
{
int count = (ms.Position + 10000 <= ms.Length) ? 10000 : (int)(ms.Length - ms.Position);
byte[] buff2 = BuffXOR(ms, count);
ms.Seek(-count, SeekOrigin.Current);
ms.Write(buff2, 0, count);
}
}
static void WriteGlobalEntryHeader(ZipWriter.WriterZipEntry entry, Stream ms)
{
ms.Write(BitConverter.GetBytes(entry.Time), 0, 2);
ms.Write(BitConverter.GetBytes(entry.Date), 0, 2);
ms.Write(BitConverter.GetBytes(entry.CRC32), 0, 4);
ms.Write(BitConverter.GetBytes(entry.ComprLen), 0, 4);
ms.Write(BitConverter.GetBytes(entry.UncLen), 0, 4);
ms.Write(BitConverter.GetBytes((ushort)entry.Filename.Length), 0, 2);
ms.Write(BitConverter.GetBytes(0), 0, 4); // 0 for extra field, 0 for comment
ms.Write(BitConverter.GetBytes(0), 0, 4); // 0 for disk no, 0 for internal attributes
ms.Write(BitConverter.GetBytes(ExternalAttr), 0, 4);
ms.Write(BitConverter.GetBytes((int)entry.MainOffset), 0, 4);
foreach (char c in entry.Filename)
{
ms.WriteByte((byte)c);
}
}