Linux: Checking if a socket/pipe is broken without doing a read()/write()

Question

I have a simple piece of code that periodically writes data to a fd that\'s passed to it. The fd will most likely be a pipe or socket but could potentially be anything. I can de

Answer 1

Try with select and its errorfds parameter:

int **select**(int nfds, fd_set *restrict readfds,
      fd_set *restrict writefds, **fd_set *restrict errorfds**,
      struct timeval *restrict timeout);