DOKK / manpages / debian 10 / libexplain-dev / explain_setsockopt_or_die.3.en
explain_setsockopt_or_die(3) Library Functions Manual explain_setsockopt_or_die(3)

explain_setsockopt_or_die - get and set options on sockets and report errors

#include <libexplain/setsockopt.h>

void explain_setsockopt_or_die(int fildes, int level, int name, void *data, socklen_t data_size);

The explain_setsockopt_or_die function is used to call the setsockopt(2) system call. On failure an explanation will be printed to stderr, obtained from explain_setsockopt(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_setsockopt_or_die(fildes, level, name, data, data_size);
The fildes, exactly as to be passed to the setsockopt(2) system call.
The level, exactly as to be passed to the setsockopt(2) system call.
The name, exactly as to be passed to the setsockopt(2) system call.
The data, exactly as to be passed to the setsockopt(2) system call.
The data_size, exactly as to be passed to the setsockopt(2) system call.
This function only returns on success. On failure, prints an explanation and exits.

setsockopt(2)
get and set options on sockets
explain_setsockopt(3)
explain setsockopt(2) errors
exit(2)
terminate the calling process

libexplain version 1.4
Copyright (C) 2009 Peter Miller