100 lines
2.3 KiB
C
Executable File
100 lines
2.3 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)setpeernm.c 1.9 93/09/30 SMI" /* SVr4.0 1.5 */
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/*
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* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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* PROPRIETARY NOTICE (Combined)
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*
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* This source code is unpublished proprietary information
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* constituting, or derived under license from AT&T's UNIX(r) System V.
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* In addition, portions of such source code were derived from Berkeley
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* 4.3 BSD under license from the Regents of the University of
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* California.
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*
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*
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*
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* Copyright Notice
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*
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* Notice of copyright on this source code product does not indicate
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* publication.
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*
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* (c) 1986,1987,1988.1989 Sun Microsystems, Inc
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* (c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
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* All rights reserved.
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*
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*/
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#include "sockmt.h"
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#include <sys/param.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <sys/stream.h>
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#include <sys/ioctl.h>
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#include <stropts.h>
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#include <sys/tihdr.h>
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#include <sys/socket.h>
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#include <tiuser.h>
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#include <sys/sockmod.h>
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#include <signal.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include "sock.h"
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static int __setpeername(struct _si_user *siptr, struct sockaddr *name,
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int namelen);
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#pragma weak setpeername = _setpeername
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int
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_setpeername(s, name, namelen)
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register int s;
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register struct sockaddr *name;
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register int namelen;
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{
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register struct _si_user *siptr;
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sigset_t mask;
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int retval;
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if ((siptr = _s_checkfd(s)) == (struct _si_user *)NULL)
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return (-1);
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MUTEX_LOCK_SIGMASK(&siptr->lock, mask);
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if (namelen <= 0) {
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MUTEX_UNLOCK_SIGMASK(&siptr->lock, mask);
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errno = EINVAL;
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return (-1);
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}
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retval = __setpeername(siptr, name,
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_s_min(namelen, siptr->udata.addrsize));
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MUTEX_UNLOCK_SIGMASK(&siptr->lock, mask);
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return (retval);
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}
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static int
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__setpeername(siptr, name, namelen)
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register struct _si_user *siptr;
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register struct sockaddr *name;
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register int namelen;
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{
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sigset_t procmask;
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_s_blockallsignals(&procmask);
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if (!_s_do_ioctl(siptr->fd, (caddr_t)name, namelen,
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SI_SETPEERNAME, NULL)) {
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_s_restoresigmask(&procmask);
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return (-1);
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}
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_s_restoresigmask(&procmask);
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return (0);
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}
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