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Copyright 1989 AT&T
Copyright (C) 2002, Sun Microsystems, Inc. All Rights Reserved
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
socketpair - create a pair of connected sockets

cc [ flag ... ] file ... -lsocket  -lnsl  [ library ... ]
#include <sys/types.h>
#include <sys/socket.h>

int socketpair(int domain, int type, int protocol, int sv[2]);

The socketpair() library call creates an unnamed pair of connected sockets in the specified address family domain, of the specified type, that uses the optionally specified protocol. The descriptors that are used in referencing the new sockets are returned in sv[0] and sv[1]. The two sockets are indistinguishable.

socketpair() returns -1 on failure and 0 on success.

The call succeeds unless: EAFNOSUPPORT

EMFILE ENOMEM ENOSR EOPNOTSUPP EPROTONOSUPPORT EACCES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

MT-Level Safe

pipe(2), read(2), write(2), socket.h(3HEAD), attributes(5)

This call is currently implemented only for the AF_UNIX address family.