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
32 #ifndef HAVE_BINRESVPORT_AF
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char *rcsid = "$OpenBSD: bindresvport.c,v 1.11 1999/12/17 19:22:08 deraadt Exp $";
36 #endif /* LIBC_SCCS and not lint */
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_af(sd, sa, af)
60 struct sockaddr_storage myaddr;
61 struct sockaddr_in *sin;
62 struct sockaddr_in6 *sin6;
69 memset(&myaddr, 0, sizeof(myaddr));
70 sa = (struct sockaddr *)&myaddr;
74 sin = (struct sockaddr_in *)sa;
75 salen = sizeof(struct sockaddr_in);
76 portp = &sin->sin_port;
77 } else if (af == AF_INET6) {
78 sin6 = (struct sockaddr_in6 *)sa;
79 salen = sizeof(struct sockaddr_in6);
80 portp = &sin6->sin6_port;
89 port = (arc4random() % NPORTS) + STARTPORT;
91 for(i = 0; i < NPORTS; i++) {
94 error = bind(sd, sa, salen);
96 /* Terminate on success */
100 /* Terminate on errors, except "address already in use" */
101 if ((error < 0) && !((errno == EADDRINUSE) || (errno == EINVAL)))
112 #endif /* HAVE_BINRESVPORT_AF */