Finding open file descriptors for a process linux ( C code )?

Question

I wanted to find all fds opened for a process in linux.

Can I do it with glib library functions ?

Answer 1

fstat command lists all running processes of the system and their open descriptors furthermore it lists what type of descriptor it is (file, socket, pipe, etc) and tries to give a hint of what the descriptor is reading or writing on such as what filesystem and what inode number on that file system