2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)getnetent.c 8.1 (Berkeley) 6/4/93
30 * $FreeBSD: src/lib/libc/net/getnetbyht.c,v 1.7.2.1 2002/07/07 11:34:42 robert Exp $
31 * $DragonFly: src/lib/libc/net/getnetbyht.c,v 1.5 2005/11/13 02:04:47 swildner Exp $
34 /* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro
35 * Dep. Matematica Universidade de Coimbra, Portugal, Europe
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies.
41 * from getnetent.c 1.1 (Coimbra) 93/06/02
44 #include <sys/types.h>
45 #include <sys/socket.h>
46 #include <netinet/in.h>
47 #include <arpa/inet.h>
48 #include <arpa/nameser.h>
56 static char line[BUFSIZ+1];
57 static struct netent net;
58 static char *net_aliases[MAXALIASES];
59 static int _net_stayopen;
66 netf = fopen(_PATH_NETWORKS, "r" );
89 if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL)
92 p = fgets(line, sizeof line, netf);
97 cp = strpbrk(p, "#\n");
102 cp = strpbrk(p, " \t");
106 while (*cp == ' ' || *cp == '\t')
108 p = strpbrk(cp, " \t");
111 net.n_net = inet_network(cp);
112 net.n_addrtype = AF_INET;
113 q = net.n_aliases = net_aliases;
117 if (*cp == ' ' || *cp == '\t') {
121 if (q < &net_aliases[MAXALIASES - 1])
123 cp = strpbrk(cp, " \t");
132 _getnetbyhtname(const char *name)
137 setnetent(_net_stayopen);
138 while ( (p = getnetent()) ) {
139 if (strcasecmp(p->n_name, name) == 0)
141 for (cp = p->n_aliases; *cp != 0; cp++)
142 if (strcasecmp(*cp, name) == 0)
152 _getnetbyhtaddr(unsigned long net, int type)
156 setnetent(_net_stayopen);
157 while ( (p = getnetent()) )
158 if (p->n_addrtype == type && p->n_net == net)