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- /*
- * $Header: /u0/casey/src/mcast/libmcast/RCS/mc_getsockname.c,v 1.3 93/01/16 19:44:22 casey Exp $
- */
-
- /*
- * Copyright (c) 1992 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Lawrence Livermore National Laboratory and its
- * contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char rcsid[] = "$Header: /u0/casey/src/mcast/libmcast/RCS/mc_getsockname.c,v 1.3 93/01/16 19:44:22 casey Exp $";
- static char copyright[] =
- "Copyright (c) 1992 The Regents of the University of California.\n"
- "All rights reserved.\n";
- static char classification[] =
- "Unclassified\n";
- #endif
-
-
- /*
- * MCAST SYSLIB PUBLIC: mc_getsockname: getsockname(2) system call emulation
- * routine.
- */
-
-
- #include "mc_lib.h"
-
-
- int
- mc_getsockname(int s, struct sockaddr *name, int *namelen)
- /*
- * Get local name of a multicast socket.
- */
- {
- mc_state *sp = &_mc_state[s];
- struct sockaddr_mcast *np = (struct sockaddr_mcast *)name;
- int len = min(*namelen, sizeof(struct sockaddr_mcast));
- struct sockaddr_mcast tmp;
-
- if (s < 0 || s >= MC_MAX_CONNECTIONS
- || !(sp->state & MC_VALID)) {
- /* return(recvfrom(s, buf, len, flags)); */
- errno = EBADF;
- return(-1);
- }
- if (sp->state & MC_CORRUPTED) {
- errno = EIO;
- return(-1);
- }
- /* temped to check to see if socket if bound, but that isn't done for
- the standard protocols so we won't either */
- tmp.family = sp->family;
- tmp.group = sp->group;
- tmp.member = sp->local;
- (void)memcpy(np, &tmp, len);
- *namelen = len;
- return(0);
- }
-