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 * $FreeBSD: src/lib/libc/rpc/bindresvport.c,v 1.12 2000/01/26 09:02:42 shin Exp $
32 * $DragonFly: src/lib/libcr/rpc/Attic/bindresvport.c,v 1.2 2003/06/17 04:26:44 dillon Exp $
36 * Copyright (c) 1987 by Sun Microsystems, Inc.
38 * Portions Copyright(C) 1996, Jason Downs. All rights reserved.
41 #include <sys/types.h>
42 #include <sys/errno.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
49 * Bind a socket to a privileged IP port
54 struct sockaddr_in *sin;
56 return bindresvport_sa(sd, (struct sockaddr *)sin);
60 * Bind a socket to a privileged port for whatever protocol.
63 bindresvport_sa(sd, sa)
68 struct sockaddr_storage myaddr;
69 struct sockaddr_in *sin;
70 struct sockaddr_in6 *sin6;
71 int proto, portrange, portlow;
76 salen = sizeof(myaddr);
77 sa = (struct sockaddr *)&myaddr;
79 if (getsockname(sd, sa, &salen) == -1)
80 return -1; /* errno is correctly set */
83 memset(&myaddr, 0, salen);
89 portrange = IP_PORTRANGE;
90 portlow = IP_PORTRANGE_LOW;
91 sin = (struct sockaddr_in *)sa;
92 salen = sizeof(struct sockaddr_in);
94 } else if (af == AF_INET6) {
96 portrange = IPV6_PORTRANGE;
97 portlow = IPV6_PORTRANGE_LOW;
98 sin6 = (struct sockaddr_in6 *)sa;
99 salen = sizeof(struct sockaddr_in6);
100 port = sin6->sin6_port;
102 errno = EPFNOSUPPORT;
109 int oldlen = sizeof(old);
111 error = getsockopt(sd, proto, portrange, &old, &oldlen);
115 error = setsockopt(sd, proto, portrange, &portlow,
121 error = bind(sd, sa, salen);
124 int saved_errno = errno;
127 if (setsockopt(sd, proto, portrange, &old,
133 if (sa != (struct sockaddr *)&myaddr) {
134 /* Hmm, what did the kernel assign... */
135 if (getsockname(sd, sa, &salen) < 0)