xref: /titanic_52/usr/src/lib/libbc/libc/sys/common/socketpair.c (revision ac88567a7a5bb7f01cf22cf366bc9d6203e24d7a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1990-1996 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/types.h>
30 #include <sys/socket.h>
31 #include <sys/errno.h>
32 
33 extern int	errno;
34 
35 int
36 socketpair(family, type, protocol, sv)
37 register int	family;
38 register int	type;
39 register int	protocol;
40 register int	sv[2];
41 {
42 	int	ret;
43 	static int map[] = {0, 2, 1, 4, 5, 6};
44 	if ((ret = _socketpair_bsd(family, map[type], protocol,
45 					sv)) == -1) {
46 		maperror(errno);
47 		switch (errno) {
48 		case EAFNOSUPPORT:
49 		case EPROTOTYPE:
50 			errno = EPROTONOSUPPORT;
51 			break;
52 		}
53 	}
54 	return (ret);
55 }
56