Here's what the magic bytes look like in FreeBSD, as an example I've linked to the definition of PNG. You can see it's a fair bit more complicated but it does h

Here's what the magic bytes look like in FreeBSD, as an example I've linked to the definition of PNG. You can see it's a fair bit more complicated but it does have mime and extension data. https://github.com/freebsd/freebsd-src/blob/master/contrib/file/magic/Magdir/images#L421 https://github.com/freebsd/freebsd-src/blob/master/contrib/f...