private int LoadMetaFile(Message meta)
{
if (!File.Exists(meta.Filename + ".meta"))
{
byte[] bs = new byte[256 + 8];
Array.Copy(meta.Hash, 0, bs, 0, 256);
Array.Copy(Utils.GetBytes((long)1), 0, bs, 256, 8);
File.WriteAllBytes(meta.Filename + ".meta", bs);
return(1);
}
using FileStream fs = new FileStream(meta.Filename + ".meta", FileMode.Open);
byte[] hash = new byte[256];
byte[] id = new byte[8];
fs.Read(hash, 0, 256);
if (hash.SequenceEqual(meta.Hash))
{
fs.Read(id, 0, 8);
return((int)Utils.BtoLong(id));
}
else
{
throw new ChecksumMismatchException("Two files with same name have differed hash, please check your file or rename it.");
}
}