2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
29 * @(#)bindresvport.c 1.8 88/02/08 SMI
30 * @(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC
31 * $NetBSD: bindresvport.c,v 1.19 2000/07/06 03:03:59 christos Exp $
32 * $FreeBSD: src/lib/libc/rpc/bindresvport.c,v 1.16 2004/10/16 06:11:34 obrien Exp $
36 * Copyright (c) 1987 by Sun Microsystems, Inc.
38 * Portions Copyright(C) 1996, Jason Downs. All rights reserved.
41 #include "namespace.h"
42 #include <sys/types.h>
43 #include <sys/socket.h>
45 #include <netinet/in.h>
52 #include "un-namespace.h"
55 * Bind a socket to a privileged IP port
58 bindresvport(int sd, struct sockaddr_in *sin)
60 return bindresvport_sa(sd, (struct sockaddr *)sin);
64 * Bind a socket to a privileged IP port
67 bindresvport_sa(int sd, struct sockaddr *sa)
70 struct sockaddr_storage myaddr;
71 struct sockaddr_in *sin;
73 struct sockaddr_in6 *sin6;
75 int proto, portrange, portlow;
80 salen = sizeof(myaddr);
81 sa = (struct sockaddr *)&myaddr;
83 if (_getsockname(sd, sa, &salen) == -1)
84 return -1; /* errno is correctly set */
94 portrange = IP_PORTRANGE;
95 portlow = IP_PORTRANGE_LOW;
96 sin = (struct sockaddr_in *)sa;
97 salen = sizeof(struct sockaddr_in);
98 portp = &sin->sin_port;
102 proto = IPPROTO_IPV6;
103 portrange = IPV6_PORTRANGE;
104 portlow = IPV6_PORTRANGE_LOW;
105 sin6 = (struct sockaddr_in6 *)sa;
106 salen = sizeof(struct sockaddr_in6);
107 portp = &sin6->sin6_port;
111 errno = EPFNOSUPPORT;
118 socklen_t oldlen = sizeof(old);
120 error = _getsockopt(sd, proto, portrange, &old, &oldlen);
124 error = _setsockopt(sd, proto, portrange, &portlow,
130 error = _bind(sd, sa, salen);
133 int saved_errno = errno;
136 if (_setsockopt(sd, proto, portrange, &old,
142 if (sa != (struct sockaddr *)&myaddr) {
143 /* Hmm, what did the kernel assign? */
144 if (_getsockname(sd, sa, &salen) < 0)