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/*
* socketpair() for RTEMS
*
* This file exists primarily to document what is required to provide
* a functional implementation of socketpair() for RTEMS.
*
* The socketpair() service requires that the "local domain" sockets
* be functional. This is denoted by the domain constants AF_LOCAL
* and AF_UNIX and the protocol constants PF_LOCAL and PF_UNIX. The
* local domain functionality is implemented in the file kern/uipc_usrreq.c
* which was not part of the initial port of the FreeBSD stack to
* RTEMS.
*
* The FreeBSD socketpair implementation appears to be dependent on
* file system features which are not available currently in RTEMS.
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include <sys/socket.h>
#include <errno.h>
int socketpair (int domain, int type, int protocol, int *rsv)
{
if ( !rsv ) {
errno = EFAULT;
return -1;
}
/*
* Yes, we do not support socketpair() so this is really paranoid.
* But it ensures that someone calling this routine and ignoring
* the return status will get errors from subsequent socket calls.
*/
rsv[ 0 ] = -1;
rsv[ 1 ] = -1;
errno = ENOSYS;
return -1;
}
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