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 Affero 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.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * @file util/gnunet-resolver.c
21 * @brief tool to test resolver
22 * @author Christian Grothoff
25 #include "gnunet_util_lib.h"
26 #include "gnunet_resolver_service.h"
28 #define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
31 * Flag for reverse lookup.
37 * Prints each hostname obtained from DNS.
39 * @param cls closure (unused)
40 * @param hostname one of the names for the host, NULL
41 * on the last call to the callback
44 print_hostname (void *cls,
57 * Callback function to display address.
59 * @param cls closure (unused)
60 * @param addr one of the addresses of the host, NULL for the last address
61 * @param addrlen length of the address
64 print_sockaddr (void *cls,
65 const struct sockaddr *addr,
79 * Main function that will be run by the scheduler.
82 * @param args remaining command-line arguments
83 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
84 * @param cfg configuration
90 const struct GNUNET_CONFIGURATION_Handle *cfg)
92 const struct sockaddr *sa;
94 struct sockaddr_in v4;
95 struct sockaddr_in6 v6;
104 GNUNET_RESOLVER_ip_get (args[0],
113 memset (&v4, 0, sizeof (v4));
114 v4.sin_family = AF_INET;
115 #if HAVE_SOCKADDR_IN_SIN_LEN
116 v4.sin_len = sizeof (v4);
118 if (1 == inet_pton (AF_INET,
122 sa = (struct sockaddr *) &v4;
125 memset (&v6, 0, sizeof (v6));
126 v6.sin6_family = AF_INET6;
127 #if HAVE_SOCKADDR_IN_SIN_LEN
128 v6.sin6_len = sizeof (v6);
130 if (1 == inet_pton (AF_INET6,
134 sa = (struct sockaddr *) &v6;
140 "`%s' is not a valid IP: %s\n",
145 GNUNET_RESOLVER_hostname_get (sa, salen,
154 * The main function to access GNUnet's DNS resolver.
156 * @param argc number of arguments from the command line
157 * @param argv command line arguments
158 * @return 0 ok, 1 on error
161 main (int argc, char *const *argv)
163 struct GNUNET_GETOPT_CommandLineOption options[] = {
164 GNUNET_GETOPT_option_flag ('r',
166 gettext_noop ("perform a reverse lookup"),
168 GNUNET_GETOPT_OPTION_END
172 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
176 GNUNET_PROGRAM_run (argc, argv, "gnunet-resolver [hostname]",
177 gettext_noop ("Use build-in GNUnet stub resolver"),
178 options, &run, NULL)) ? 0 : 1;
179 GNUNET_free ((void*) argv);
183 /* end of gnunet-resolver.c */