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| explain_socketpair_or_die(3) | FreeBSD Library Functions Manual | explain_socketpair_or_die(3) |
NAME
explain_socketpair_or_die - create pair of connected sockets and report errorsSYNOPSIS
#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 1.3Copyright (C) 2010 Peter Miller
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