explain_listen_or_die(3) Library Functions Manual explain_listen_or_die(3)

explain_listen_or_die - listen for connections on a socket and report errors

#include <libexplain/listen.h>

void explain_listen_or_die(int fildes, int backlog);

The explain_listen_or_die function is used to call the listen(2) system call. On failure an explanation will be printed to stderr, obtained from explain_listen(3), and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

explain_listen_or_die(fildes, backlog);
The fildes, exactly as to be passed to the listen(2) system call.
The backlog, exactly as to be passed to the listen(2) system call.
This function only returns on success. On failure, prints an explanation and exits.

listen for connections on a socket
explain listen(2) errors
terminate the calling process

libexplain version 1.4
Copyright (C) 2008 Peter Miller