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/*
This file is part of GNUnet.
(C) 2001, 2002, 2003, 2004, 2006, 2009 Christian Grothoff (and other contributing authors)
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 2, 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file peerinfo/gnunet-peerinfo.c
* @brief Print information about other known peers.
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_configuration_lib.h"
#include "gnunet_getopt_lib.h"
#include "gnunet_peerinfo_service.h"
#include "gnunet_program_lib.h"
static int no_resolve;
static int be_quiet;
static int get_self;
/**
* Print information about the peer.
* Currently prints the GNUNET_PeerIdentity, trust and the IP.
* Could of course do more (e.g. resolve via DNS).
*/
static void
print_peer_info (void *cls,
const struct GNUNET_PeerIdentity *peer,
const struct GNUNET_HELLO_Message *hello, uint32_t trust)
{
struct GNUNET_CRYPTO_HashAsciiEncoded enc;
/* FIXME: add printing of address information!
=> need extended transport API! */
GNUNET_CRYPTO_hash_to_enc (&peer->hashPubKey, &enc);
if (be_quiet)
printf ("%s\n", (const char *) &enc);
else
printf (_("Peer `%s' with trust %8u\n"), (const char *) &enc, trust);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param sched the scheduler to use
* @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,
struct GNUNET_SCHEDULER_Handle *sched,
char *const *args,
const char *cfgfile, struct GNUNET_CONFIGURATION_Handle *cfg)
{
struct GNUNET_CRYPTO_RsaPrivateKey *priv;
struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
struct GNUNET_PeerIdentity pid;
struct GNUNET_CRYPTO_HashAsciiEncoded enc;
char *fn;
if (get_self != GNUNET_YES)
{
GNUNET_PEERINFO_for_all (cfg,
sched,
NULL,
0,
GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_SECONDS, 30),
&print_peer_info, NULL);
}
else
{
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (cfg,
"GNUNET",
"HOSTKEYFILE", &fn))
return;
priv = GNUNET_CRYPTO_rsa_key_create_from_file (fn);
if (priv == NULL)
{
fprintf (stderr, _("Loading hostkey from `%s' failed.\n"), fn);
GNUNET_free (fn);
return;
}
GNUNET_free (fn);
GNUNET_CRYPTO_rsa_key_get_public (priv, &pub);
GNUNET_CRYPTO_rsa_key_free (priv);
GNUNET_CRYPTO_hash (&pub, sizeof (pub), &pid.hashPubKey);
GNUNET_CRYPTO_hash_to_enc (&pid.hashPubKey, &enc);
if (be_quiet)
printf ("%s\n", (char *) &enc);
else
printf (_("I am peer `%s'.\n"), (const char *) &enc);
}
}
/**
* gnunet-peerinfo command line options
*/
static struct GNUNET_GETOPT_CommandLineOption options[] = {
{'n', "numeric", NULL,
gettext_noop ("don't resolve host names"),
0, &GNUNET_GETOPT_set_one, &no_resolve},
{'q', "quiet", NULL,
gettext_noop ("output only the identity strings"),
0, &GNUNET_GETOPT_set_one, &be_quiet},
{'s', "self", NULL,
gettext_noop ("output our own identity only"),
0, &GNUNET_GETOPT_set_one, &get_self},
GNUNET_GETOPT_OPTION_END
};
/**
* The main function to obtain peer information.
*
* @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)
{
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc,
argv,
"gnunet-peerinfo",
gettext_noop ("Print information about peers."),
options, &run, NULL)) ? 0 : 1;
}
/* end of gnunet-peerinfo.c */
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