2 This file is part of GNUnet.
3 (C) 2010 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 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 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file util/gnunet-resolver.c
23 * @brief tool to test resolver
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_resolver_service.h"
30 #define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
33 * Flag for reverse lookup.
39 * Prints each hostname obtained from DNS.
41 * @param cls closure (unused)
42 * @param hostname one of the names for the host, NULL
43 * on the last call to the callback
46 print_hostname (void *cls,
51 FPRINTF (stdout, "%s\n", hostname);
56 * Callback function to display address.
58 * @param cls closure (unused)
59 * @param addr one of the addresses of the host, NULL for the last address
60 * @param addrlen length of the address
63 print_sockaddr (void *cls, const struct sockaddr *addr, socklen_t addrlen)
67 FPRINTF (stdout, "%s\n", GNUNET_a2s (addr, addrlen));
72 * Main function that will be run by the scheduler.
75 * @param args remaining command-line arguments
76 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
77 * @param cfg configuration
80 run (void *cls, char *const *args, const char *cfgfile,
81 const struct GNUNET_CONFIGURATION_Handle *cfg)
83 const struct sockaddr *sa;
85 struct sockaddr_in v4;
86 struct sockaddr_in6 v6;
92 GNUNET_RESOLVER_ip_get (args[0], AF_UNSPEC, GET_TIMEOUT, &print_sockaddr, NULL);
97 memset (&v4, 0, sizeof (v4));
98 v4.sin_family = AF_INET;
99 #if HAVE_SOCKADDR_IN_SIN_LEN
100 v4.sin_len = sizeof (v4);
102 if (1 == inet_pton (AF_INET,
106 sa = (struct sockaddr *) &v4;
109 memset (&v6, 0, sizeof (v6));
110 v6.sin6_family = AF_INET6;
111 #if HAVE_SOCKADDR_IN_SIN_LEN
112 v6.sin6_len = sizeof (v6);
114 if (1 == inet_pton (AF_INET6,
118 sa = (struct sockaddr *) &v6;
124 "`%s' is not a valid IP: %s\n",
129 GNUNET_RESOLVER_hostname_get (sa, salen,
137 * The main function to obtain statistics in GNUnet.
139 * @param argc number of arguments from the command line
140 * @param argv command line arguments
141 * @return 0 ok, 1 on error
144 main (int argc, char *const *argv)
146 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
147 { 'r', "reverse", NULL,
148 gettext_noop ("perform a reverse lookup"),
149 0, &GNUNET_GETOPT_set_one, &reverse },
150 GNUNET_GETOPT_OPTION_END
153 GNUNET_PROGRAM_run (argc, argv, "gnunet-resolver [hostname]",
154 gettext_noop ("Use build-in GNUnet stub resolver"),
155 options, &run, NULL)) ? 0 : 1;
158 /* end of gnunet-resolver.c */