1 /* $NetBSD: bindresvport.c,v 1.19 2000/07/06 03:03:59 christos Exp $ */
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
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9 * program developed by the user.
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13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
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29 * Mountain View, California 94043
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char *sccsid2 = "from: @(#)bindresvport.c 1.8 88/02/08 SMI";
34 static char *sccsid = "from: @(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC";
36 /* from: $OpenBSD: bindresvport.c,v 1.7 1996/07/30 16:25:47 downsj Exp $ */
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
41 * Copyright (c) 1987 by Sun Microsystems, Inc.
43 * Portions Copyright(C) 1996, Jason Downs. All rights reserved.
46 #include "namespace.h"
47 #include <sys/types.h>
48 #include <sys/socket.h>
50 #include <netinet/in.h>
59 #include "un-namespace.h"
62 * Bind a socket to a privileged IP port
67 struct sockaddr_in *sin;
69 return bindresvport_sa(sd, (struct sockaddr *)sin);
73 * Bind a socket to a privileged IP port
76 bindresvport_sa(sd, sa)
81 struct sockaddr_storage myaddr;
82 struct sockaddr_in *sin;
84 struct sockaddr_in6 *sin6;
86 int proto, portrange, portlow;
91 salen = sizeof(myaddr);
92 sa = (struct sockaddr *)&myaddr;
94 if (_getsockname(sd, sa, &salen) == -1)
95 return -1; /* errno is correctly set */
105 portrange = IP_PORTRANGE;
106 portlow = IP_PORTRANGE_LOW;
107 sin = (struct sockaddr_in *)sa;
108 salen = sizeof(struct sockaddr_in);
109 portp = &sin->sin_port;
113 proto = IPPROTO_IPV6;
114 portrange = IPV6_PORTRANGE;
115 portlow = IPV6_PORTRANGE_LOW;
116 sin6 = (struct sockaddr_in6 *)sa;
117 salen = sizeof(struct sockaddr_in6);
118 portp = &sin6->sin6_port;
122 errno = EPFNOSUPPORT;
129 socklen_t oldlen = sizeof(old);
131 error = _getsockopt(sd, proto, portrange, &old, &oldlen);
135 error = _setsockopt(sd, proto, portrange, &portlow,
141 error = _bind(sd, sa, salen);
144 int saved_errno = errno;
147 if (_setsockopt(sd, proto, portrange, &old,
153 if (sa != (struct sockaddr *)&myaddr) {
154 /* Hmm, what did the kernel assign? */
155 if (_getsockname(sd, sa, &salen) < 0)