2 This file is part of GNUnet.
3 (C) 2001, 2002, 2003, 2004, 2006, 2009, 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 peerinfo-tool/gnunet-peerinfo.c
23 * @brief Print information about other known peers.
24 * @author Christian Grothoff
27 #include "gnunet_crypto_lib.h"
28 #include "gnunet_configuration_lib.h"
29 #include "gnunet_getopt_lib.h"
30 #include "gnunet_peerinfo_service.h"
31 #include "gnunet_transport_service.h"
32 #include "gnunet_program_lib.h"
34 static int no_resolve;
40 static struct GNUNET_PEERINFO_Handle *peerinfo;
42 static const struct GNUNET_CONFIGURATION_Handle *cfg;
46 struct GNUNET_PeerIdentity peer;
48 unsigned int num_addresses;
54 dump_pc (struct PrintContext *pc)
56 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
59 GNUNET_CRYPTO_hash_to_enc (&pc->peer.hashPubKey, &enc);
60 printf (_("Peer `%s'\n"),
62 for (i=0;i<pc->num_addresses;i++)
66 GNUNET_free (pc->address_list[i]);
69 GNUNET_array_grow (pc->address_list,
77 * Function to call with a human-readable format of an address
80 * @param address NULL on error, otherwise 0-terminated printable UTF-8 string
83 process_resolved_address (void *cls,
86 struct PrintContext *pc = cls;
95 GNUNET_array_append (pc->address_list,
97 GNUNET_strdup (address));
102 * Iterator callback to go over all addresses.
105 * @param tname name of the transport
106 * @param expiration expiration time
107 * @param addr the address
108 * @param addrlen length of the address
109 * @return GNUNET_OK to keep the address and continue
112 count_address (void *cls,
114 struct GNUNET_TIME_Absolute expiration,
115 const void *addr, uint16_t addrlen)
117 struct PrintContext *pc = cls;
124 * Iterator callback to go over all addresses.
127 * @param tname name of the transport
128 * @param expiration expiration time
129 * @param addr the address
130 * @param addrlen length of the address
131 * @return GNUNET_OK to keep the address and continue
134 print_address (void *cls,
136 struct GNUNET_TIME_Absolute expiration,
137 const void *addr, uint16_t addrlen)
139 struct PrintContext *pc = cls;
140 GNUNET_TRANSPORT_address_lookup (cfg,
145 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10),
146 &process_resolved_address,
153 * Print information about the peer.
154 * Currently prints the GNUNET_PeerIdentity and the IP.
155 * Could of course do more (e.g. resolve via DNS).
158 print_peer_info (void *cls,
159 const struct GNUNET_PeerIdentity *peer,
160 const struct GNUNET_HELLO_Message *hello,
161 const char * err_msg)
163 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
164 struct PrintContext *pc;
168 if (err_msg != NULL) fprintf (stderr,_("Error in communication with PEERINFO service\n"));
169 GNUNET_PEERINFO_disconnect (peerinfo);
174 GNUNET_CRYPTO_hash_to_enc (&peer->hashPubKey, &enc);
175 printf ("%s\n", (const char *) &enc);
178 pc = GNUNET_malloc (sizeof (struct PrintContext));
180 GNUNET_HELLO_iterate_addresses (hello, GNUNET_NO, &count_address, pc);
186 GNUNET_HELLO_iterate_addresses (hello, GNUNET_NO, &print_address, pc);
191 * Main function that will be run by the scheduler.
194 * @param args remaining command-line arguments
195 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
196 * @param c configuration
202 const struct GNUNET_CONFIGURATION_Handle *c)
204 struct GNUNET_CRYPTO_RsaPrivateKey *priv;
205 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
206 struct GNUNET_PeerIdentity pid;
207 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
214 _("Invalid command line argument `%s'\n"),
218 if (get_self != GNUNET_YES)
220 peerinfo = GNUNET_PEERINFO_connect (cfg);
221 if (peerinfo == NULL)
224 _("Could not access PEERINFO service. Exiting.\n"));
227 GNUNET_PEERINFO_iterate (peerinfo,
229 GNUNET_TIME_relative_multiply
230 (GNUNET_TIME_UNIT_SECONDS, 5),
231 &print_peer_info, NULL);
236 GNUNET_CONFIGURATION_get_value_filename (cfg,
241 _("Could not find option `%s:%s' in configuration.\n"),
246 priv = GNUNET_CRYPTO_rsa_key_create_from_file (fn);
249 fprintf (stderr, _("Loading hostkey from `%s' failed.\n"), fn);
254 GNUNET_CRYPTO_rsa_key_get_public (priv, &pub);
255 GNUNET_CRYPTO_rsa_key_free (priv);
256 GNUNET_CRYPTO_hash (&pub, sizeof (pub), &pid.hashPubKey);
257 GNUNET_CRYPTO_hash_to_enc (&pid.hashPubKey, &enc);
259 printf ("%s\n", (char *) &enc);
261 printf (_("I am peer `%s'.\n"), (const char *) &enc);
267 * The main function to obtain peer information.
269 * @param argc number of arguments from the command line
270 * @param argv command line arguments
271 * @return 0 ok, 1 on error
274 main (int argc, char *const *argv)
276 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
277 {'n', "numeric", NULL,
278 gettext_noop ("don't resolve host names"),
279 0, &GNUNET_GETOPT_set_one, &no_resolve},
281 gettext_noop ("output only the identity strings"),
282 0, &GNUNET_GETOPT_set_one, &be_quiet},
284 gettext_noop ("output our own identity only"),
285 0, &GNUNET_GETOPT_set_one, &get_self},
286 GNUNET_GETOPT_OPTION_END
289 GNUNET_PROGRAM_run (argc,
292 gettext_noop ("Print information about peers."),
293 options, &run, NULL)) ? 0 : 1;
296 /* end of gnunet-peerinfo.c */