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