2 * Copyright (c) 1995, 1996, 1998 Theo de Raadt. All rights reserved.
3 * Copyright (c) 1983, 1993, 1994
4 * The Regents of the University of California. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #ifndef HAVE_RRESVPORT_AF
35 #if defined(LIBC_SCCS) && !defined(lint)
36 static char *rcsid = "$OpenBSD: rresvport.c,v 1.6 2003/06/03 02:11:35 deraadt Exp $";
37 #endif /* LIBC_SCCS and not lint */
46 return rresvport_af(alport, AF_INET);
51 rresvport_af(int *alport, sa_family_t af)
53 struct sockaddr_storage ss;
59 memset(&ss, '\0', sizeof ss);
60 sa = (struct sockaddr *)&ss;
64 salen = sizeof(struct sockaddr_in);
65 portp = &((struct sockaddr_in *)sa)->sin_port;
68 salen = sizeof(struct sockaddr_in6);
69 portp = &((struct sockaddr_in6 *)sa)->sin6_port;
77 s = socket(af, SOCK_STREAM, 0);
81 *portp = htons(*alport);
82 if (*alport < IPPORT_RESERVED - 1) {
83 if (bind(s, sa, salen) >= 0)
85 if (errno != EADDRINUSE) {
93 if (bindresvport_sa(s, sa) == -1) {
97 *alport = ntohs(*portp);
101 #endif /* HAVE_RRESVPORT_AF */