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.
- 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:
explain_socketpair_or_die(domain, type, protocol, sv);
SEE ALSO¶
- socketpair(2)
- create a pair of connected sockets
- explain_socketpair(3)
- explain socketpair(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2010 Peter Miller