2 * Mar 8, 2000 by Hajimu UMEMOTO <ume@mahoroba.org>
3 * $Id: getnameinfo.c,v 1.2 2003/02/13 19:56:07 rjs3 Exp $
5 * This module is besed on ssh-1.2.27-IPv6-1.5 written by
6 * KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
9 * Copyright (c) 1998-2003 Carnegie Mellon University. All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in
20 * the documentation and/or other materials provided with the
23 * 3. The name "Carnegie Mellon University" must not be used to
24 * endorse or promote products derived from this software without
25 * prior written permission. For permission or any other legal
26 * details, please contact
27 * Office of Technology Transfer
28 * Carnegie Mellon University
30 * Pittsburgh, PA 15213-3890
31 * (412) 268-4387, fax: (412) 268-7395
32 * tech-transfer@andrew.cmu.edu
34 * 4. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by Computing Services
37 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
39 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
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41 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
42 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
43 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
44 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
45 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
48 * fake library for ssh
50 * This file includes getnameinfo().
51 * These funtions are defined in rfc2133.
53 * But these functions are not implemented correctly. The minimum subset
54 * is implemented for ssh use only. For exapmle, this routine assumes
55 * that ai_family is AF_INET. Don't use it for another purpose.
57 * In the case not using 'configure --enable-ipv6', this getnameinfo.c
58 * will be used if you have broken getnameinfo or no getnameinfo.
61 #include "saslauthd.h"
62 #include <arpa/inet.h>
67 getnameinfo(const struct sockaddr *sa, socklen_t salen __attribute__((unused)),
68 char *host, size_t hostlen, char *serv, size_t servlen, int flags)
70 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
75 sprintf(tmpserv, "%d", ntohs(sin->sin_port));
76 if (strlen(tmpserv) > servlen)
79 strcpy(serv, tmpserv);
82 if (flags & NI_NUMERICHOST) {
83 if (strlen(inet_ntoa(sin->sin_addr)) >= hostlen)
86 strcpy(host, inet_ntoa(sin->sin_addr));
90 hp = gethostbyaddr((char *)&sin->sin_addr,
91 sizeof(struct in_addr), AF_INET);
93 if (strlen(hp->h_name) >= hostlen)
96 strcpy(host, hp->h_name);