123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159 |
- /*
- This file is part of GNUnet.
- Copyright (C)
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
- */
- /**
- * @file rps/gnunet-rps.c
- * @brief random peer sampling
- * @author Julius Bünger
- */
- #include "platform.h"
- #include "gnunet_util_lib.h"
- #include "gnunet_rps_service.h"
- #include <inttypes.h>
- static int ret;
- /**
- * RPS handle
- */
- static struct GNUNET_RPS_Handle *rps_handle;
- /**
- * Request handle
- */
- static struct GNUNET_RPS_Request_Handle *req_handle;
- /**
- * PeerID (Option --seed)
- */
- static struct GNUNET_PeerIdentity peer_id;
- /**
- * Task run when user presses CTRL-C to abort.
- * Cancels pending request and disconnects.
- *
- * @param cls NULL
- */
- static void
- do_shutdown (void *cls)
- {
- if (NULL != req_handle)
- GNUNET_RPS_request_cancel (req_handle);
- GNUNET_RPS_disconnect (rps_handle);
- }
- /**
- * Callback called on receipt of reply.
- * Prints replied PeerIDs.
- *
- * @param cls closure
- * @param n number of peers
- * @param recv_peers the received peers
- */
- static void
- reply_handle (void *cls,
- uint64_t n,
- const struct GNUNET_PeerIdentity *recv_peers)
- {
- uint64_t i;
- req_handle = NULL;
- for (i = 0; i < n; i++)
- {
- FPRINTF (stdout, "%s\n",
- GNUNET_i2s_full (&recv_peers[i]));
- }
- ret = 0;
- GNUNET_SCHEDULER_shutdown ();
- }
- /**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param cfg configuration
- */
- static void
- run (void *cls,
- char *const *args,
- const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
- {
- static uint64_t num_peers;
- static struct GNUNET_PeerIdentity zero_pid;
- rps_handle = GNUNET_RPS_connect (cfg);
- if (0 == memcmp (&zero_pid,
- &peer_id,
- sizeof (peer_id)))
- { /* Request n PeerIDs */
- /* If number was specified use it, else request single peer. */
- num_peers = (NULL == args[0]) ? 1 : atoi (args[0]);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Requesting %" PRIu64 " PeerIDs\n", num_peers);
- req_handle = GNUNET_RPS_request_peers (rps_handle, num_peers, reply_handle, NULL);
- GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
- }
- else
- { /* Seed PeerID */
- GNUNET_RPS_seed_ids (rps_handle, 1, &peer_id);
- FPRINTF (stdout, "Seeded PeerID %s\n", GNUNET_i2s_full (&peer_id));
- ret = 0;
- GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
- }
- }
- /**
- * The main function to rps.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
- int
- main (int argc, char *const *argv)
- {
- const char helpstr[] =
- "Get random GNUnet peers. If none is specified a single is requested.";
- struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_option_base32_auto ('s',
- "seed",
- "PEER_ID",
- gettext_noop ("Seed a PeerID"),
- &peer_id),
- GNUNET_GETOPT_OPTION_END
- };
- return (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-rps [NUMBER_OF_PEERS]",
- gettext_noop
- (helpstr),
- options, &run, NULL)) ? ret : 1;
- }
- /* end of gnunet-rps.c */
|