static bool CheckMagicOne(Stream stream, SimpleMagicRecord rec, int offset)
{
stream.Position = rec.Offset + offset;
string key = rec.Key;
int len = rec.Length;
if (len == -1)
{
len = key.Length;
}
for (int i = 0; i < len; i++)
{
int n = stream.ReadByte();
if (n == -1)
{
return(false);
}
if (n != key[i])
{
return(false);
}
}
if (rec.ExtraCheck != null)
{
stream.Position = rec.Offset + offset;
return(rec.ExtraCheck(stream));
}
else
{
return(true);
}
}
static FileIDResult Test_Simple(IdentifyJob job, FileIDType type, SimpleMagicRecord magic)
{
var ret = new FileIDResult(type);
if (CheckMagic(job.Stream, magic))
{
return(new FileIDResult(type, 100));
}
else
{
return(new FileIDResult());
}
}
static bool CheckMagic(Stream stream, SimpleMagicRecord rec, params int[] offsets)
{
return(CheckMagic(stream, new SimpleMagicRecord[] { rec }, offsets));
}
