2 This file is part of GNUnet.
3 Copyright (C) 2010 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
17 * @file util/gnunet-resolver.c
18 * @brief tool to test resolver
19 * @author Christian Grothoff
22 #include "gnunet_util_lib.h"
23 #include "gnunet_resolver_service.h"
25 #define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
28 * Flag for reverse lookup.
34 * Prints each hostname obtained from DNS.
36 * @param cls closure (unused)
37 * @param hostname one of the names for the host, NULL
38 * on the last call to the callback
41 print_hostname (void *cls,
54 * Callback function to display address.
56 * @param cls closure (unused)
57 * @param addr one of the addresses of the host, NULL for the last address
58 * @param addrlen length of the address
61 print_sockaddr (void *cls,
62 const struct sockaddr *addr,
76 * Main function that will be run by the scheduler.
79 * @param args remaining command-line arguments
80 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
81 * @param cfg configuration
87 const struct GNUNET_CONFIGURATION_Handle *cfg)
89 const struct sockaddr *sa;
91 struct sockaddr_in v4;
92 struct sockaddr_in6 v6;
101 GNUNET_RESOLVER_ip_get (args[0],
110 memset (&v4, 0, sizeof (v4));
111 v4.sin_family = AF_INET;
112 #if HAVE_SOCKADDR_IN_SIN_LEN
113 v4.sin_len = sizeof (v4);
115 if (1 == inet_pton (AF_INET,
119 sa = (struct sockaddr *) &v4;
122 memset (&v6, 0, sizeof (v6));
123 v6.sin6_family = AF_INET6;
124 #if HAVE_SOCKADDR_IN_SIN_LEN
125 v6.sin6_len = sizeof (v6);
127 if (1 == inet_pton (AF_INET6,
131 sa = (struct sockaddr *) &v6;
137 "`%s' is not a valid IP: %s\n",
142 GNUNET_RESOLVER_hostname_get (sa, salen,
151 * The main function to access GNUnet's DNS resolver.
153 * @param argc number of arguments from the command line
154 * @param argv command line arguments
155 * @return 0 ok, 1 on error
158 main (int argc, char *const *argv)
160 struct GNUNET_GETOPT_CommandLineOption options[] = {
161 GNUNET_GETOPT_option_flag ('r',
163 gettext_noop ("perform a reverse lookup"),
165 GNUNET_GETOPT_OPTION_END
169 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
173 GNUNET_PROGRAM_run (argc, argv, "gnunet-resolver [hostname]",
174 gettext_noop ("Use build-in GNUnet stub resolver"),
175 options, &run, NULL)) ? 0 : 1;
176 GNUNET_free ((void*) argv);
180 /* end of gnunet-resolver.c */