1 /* This file has be modified from the original OpenBSD source */
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
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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.
27 * Sun Microsystems, Inc.
29 * Mountain View, California 94043
31 * $OpenBSD: bindresvport.c,v 1.13 2000/01/26 03:43:21 deraadt Exp $
36 #ifndef HAVE_BINDRESVPORT_SA
39 * Copyright (c) 1987 by Sun Microsystems, Inc.
41 * Portions Copyright(C) 1996, Jason Downs. All rights reserved.
47 #define ENDPORT (IPPORT_RESERVED - 1)
48 #define NPORTS (ENDPORT - STARTPORT + 1)
51 * Bind a socket to a privileged IP port
54 bindresvport_sa(sd, sa)
59 struct sockaddr_storage myaddr;
60 struct sockaddr_in *sin;
61 struct sockaddr_in6 *sin6;
68 memset(&myaddr, 0, sizeof(myaddr));
69 sa = (struct sockaddr *)&myaddr;
71 if (getsockname(sd, sa, &salen) == -1)
72 return -1; /* errno is correctly set */
75 memset(&myaddr, 0, salen);
80 sin = (struct sockaddr_in *)sa;
81 salen = sizeof(struct sockaddr_in);
82 portp = &sin->sin_port;
83 } else if (af == AF_INET6) {
84 sin6 = (struct sockaddr_in6 *)sa;
85 salen = sizeof(struct sockaddr_in6);
86 portp = &sin6->sin6_port;
95 port = (arc4random() % NPORTS) + STARTPORT;
100 for(i = 0; i < NPORTS; i++) {
101 *portp = htons(port);
103 error = bind(sd, sa, salen);
105 /* Terminate on success */
109 /* Terminate on errors, except "address already in use" */
110 if ((error < 0) && !((errno == EADDRINUSE) || (errno == EINVAL)))
121 #endif /* HAVE_BINDRESVPORT_SA */