explain_socketpair_or_die(3)

create pair of connected sockets and report errors

Section 3 libexplain-dev bookworm source

Description

explain_socketpair_or_die

NAME

explain_socketpair_or_die - create pair of connected sockets and report errors

SYNOPSIS

#include <libexplain/socketpair.h>
void explain_socketpair_or_die(int domain, int type, int protocol, int *sv);
int explain_socketpair_on_error(int domain, int type, int protocol, int *sv);

DESCRIPTION

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

The explain_socketpair_on_error function is used to call the socketpair(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_socketpair(3) function, but still returns to the caller.

	domain		The domain, exactly as to be passed to the socketpair(2) system call.
	type		The type, exactly as to be passed to the socketpair(2) system call.

protocol

The protocol, exactly as to be passed to the socketpair(2) system call.

The sv, exactly as to be passed to the socketpair(2) system call.

RETURN VALUE

The explain_socketpair_or_die function only returns on success, see socketpair(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_socketpair_on_error function always returns the value return by the wrapped socketpair(2) system call.

EXAMPLE

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

explain_socketpair_or_die(domain, type, protocol, sv);