public static byte[] MakeHeader(FSARInfo Header)
{
byte[] OutHeader = new byte[0x20]
{
(byte)'F', (byte)'S', (byte)'A', (byte)'R', // Magic word
0x00, 0x00, 0x00, 0x02, // Compressed flag?
0x00, 0x00, 0x00, 0x00, // FileTable end
0x00, 0x00, 0x00, 0x00, // Number of files
(byte)'x', (byte)'x', (byte)'x', (byte)'x', // 0x10 bytes long padding
(byte)'x', (byte)'x', (byte)'x', (byte)'x', // 0x10 bytes long padding
(byte)'x', (byte)'x', (byte)'x', (byte)'x', // 0x10 bytes long padding
(byte)'x', (byte)'x', (byte)'x', (byte)'x', // 0x10 bytes long padding
};
OutHeader.WriteInt32BE(0x08, Header.FileTableEnd);
OutHeader.WriteInt32BE(0x0C, Header.FileTableObjects);
return(OutHeader);
}
public static FSARInfo ParseHeader(Byte[] Header)
{
FSARInfo CurHeader = new FSARInfo();
String MagicWord = "FSAR";
if (Header.Length == 0x20 || Header.Length == 0x10) // Verify the lenght of the given header (lenght it 0x20 if it includes the 0x10 bytes of padding)
{
if (Encoding.UTF8.GetString(Header, 0, 4) == MagicWord) // Verify if the magic word is right
{
CurHeader.FileTableEnd = Header.ReadInt32BE(0x08);
CurHeader.FileTableObjects = Header.ReadInt32BE(0x0C);
}
else
{
throw new Exception(string.Format("Error: expected 'FSAR' as magic word, got '{0}' instead", Encoding.UTF8.GetString(Header, 0, 4)));
}
}
return(CurHeader);
}