aboutsummaryrefslogtreecommitdiff
path: root/src/peerinfo/gnunet-peerinfo.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/peerinfo/gnunet-peerinfo.c')
-rw-r--r--src/peerinfo/gnunet-peerinfo.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/src/peerinfo/gnunet-peerinfo.c b/src/peerinfo/gnunet-peerinfo.c
new file mode 100644
index 000000000..6c737c88a
--- /dev/null
+++ b/src/peerinfo/gnunet-peerinfo.c
@@ -0,0 +1,152 @@
1/*
2 This file is part of GNUnet.
3 (C) 2001, 2002, 2003, 2004, 2006, 2009 Christian Grothoff (and other contributing authors)
4
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 2, or (at your
8 option) any later version.
9
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.
14
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.
19*/
20
21/**
22 * @file peerinfo/gnunet-peerinfo.c
23 * @brief Print information about other known peers.
24 * @author Christian Grothoff
25 */
26#include "platform.h"
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_program_lib.h"
32
33static int no_resolve;
34
35static int be_quiet;
36
37static int get_self;
38
39/**
40 * Print information about the peer.
41 * Currently prints the GNUNET_PeerIdentity, trust and the IP.
42 * Could of course do more (e.g. resolve via DNS).
43 */
44static void
45print_peer_info (void *cls,
46 const struct GNUNET_PeerIdentity *peer,
47 const struct GNUNET_HELLO_Message *hello, uint32_t trust)
48{
49 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
50
51 /* FIXME: add printing of address information!
52 => need extended transport API! */
53 GNUNET_CRYPTO_hash_to_enc (&peer->hashPubKey, &enc);
54 if (be_quiet)
55 printf ("%s\n", (const char *) &enc);
56 else
57 printf (_("Peer `%s' with trust %8u\n"), (const char *) &enc, trust);
58}
59
60/**
61 * Main function that will be run by the scheduler.
62 *
63 * @param cls closure
64 * @param sched the scheduler to use
65 * @param args remaining command-line arguments
66 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
67 * @param cfg configuration
68 */
69static void
70run (void *cls,
71 struct GNUNET_SCHEDULER_Handle *sched,
72 char *const *args,
73 const char *cfgfile, struct GNUNET_CONFIGURATION_Handle *cfg)
74{
75 struct GNUNET_CRYPTO_RsaPrivateKey *priv;
76 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
77 struct GNUNET_PeerIdentity pid;
78 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
79 char *fn;
80
81 if (get_self != GNUNET_YES)
82 {
83 GNUNET_PEERINFO_for_all (cfg,
84 sched,
85 NULL,
86 0,
87 GNUNET_TIME_relative_multiply
88 (GNUNET_TIME_UNIT_SECONDS, 30),
89 &print_peer_info, NULL);
90 }
91 else
92 {
93 if (GNUNET_OK !=
94 GNUNET_CONFIGURATION_get_value_filename (cfg,
95 "GNUNET",
96 "HOSTKEYFILE", &fn))
97 return;
98 priv = GNUNET_CRYPTO_rsa_key_create_from_file (fn);
99 if (priv == NULL)
100 {
101 fprintf (stderr, _("Loading hostkey from `%s' failed.\n"), fn);
102 GNUNET_free (fn);
103 return;
104 }
105 GNUNET_free (fn);
106 GNUNET_CRYPTO_rsa_key_get_public (priv, &pub);
107 GNUNET_CRYPTO_rsa_key_free (priv);
108 GNUNET_CRYPTO_hash (&pub, sizeof (pub), &pid.hashPubKey);
109 GNUNET_CRYPTO_hash_to_enc (&pid.hashPubKey, &enc);
110 if (be_quiet)
111 printf ("%s\n", (char *) &enc);
112 else
113 printf (_("I am peer `%s'.\n"), (const char *) &enc);
114 }
115}
116
117
118/**
119 * gnunet-peerinfo command line options
120 */
121static struct GNUNET_GETOPT_CommandLineOption options[] = {
122 {'n', "numeric", NULL,
123 gettext_noop ("don't resolve host names"),
124 0, &GNUNET_GETOPT_set_one, &no_resolve},
125 {'q', "quiet", NULL,
126 gettext_noop ("output only the identity strings"),
127 0, &GNUNET_GETOPT_set_one, &be_quiet},
128 {'s', "self", NULL,
129 gettext_noop ("output our own identity only"),
130 0, &GNUNET_GETOPT_set_one, &get_self},
131 GNUNET_GETOPT_OPTION_END
132};
133
134/**
135 * The main function to obtain peer information.
136 *
137 * @param argc number of arguments from the command line
138 * @param argv command line arguments
139 * @return 0 ok, 1 on error
140 */
141int
142main (int argc, char *const *argv)
143{
144 return (GNUNET_OK ==
145 GNUNET_PROGRAM_run (argc,
146 argv,
147 "gnunet-peerinfo",
148 gettext_noop ("Print information about peers."),
149 options, &run, NULL)) ? 0 : 1;
150}
151
152/* end of gnunet-peerinfo.c */