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.
sv
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: