Can I seek a position beyond 2GB in C using the standard library?

Question

I am making a program that reads disk images in C. I am trying to make something portable, so I do not want to use too many OS-specific libraries. I am aware there are many

Answer 1

There is no portable way.

On Linux there are fseeko() and ftello(), pair (need some defines, check ftello()).

On Windows, I believe you have to use _fseeki64() and _ftelli64()

#ifdef is your friend