2 * Object oriented C module to send ICMP and ICMPv6 `echo's.
3 * Copyright (C) 2006 Florian octo Forster <octo at verplant.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
31 # error "You don't have the standard C99 header files installed"
32 #endif /* STDC_HEADERS */
38 #if TIME_WITH_SYS_TIME
39 # include <sys/time.h>
43 # include <sys/time.h>
50 # include <netdb.h> /* NI_MAXHOST */
59 typedef struct ping_context
61 char host[NI_MAXHOST];
62 char addr[NI_MAXHOST];
72 static double opt_interval = 1.0;
73 static int opt_addrfamily = PING_DEF_AF;
74 static int opt_count = -1;
76 void sigint_handler (int signal)
82 ping_context_t *context_create (void)
86 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
89 memset (ret, '\0', sizeof (ping_context_t));
91 ret->latency_min = -1.0;
92 ret->latency_max = -1.0;
93 ret->latency_total = 0.0;
98 void context_destroy (ping_context_t *context)
103 void usage_exit (const char *name)
105 fprintf (stderr, "Usage: %s [-46] [-c count] [-i interval] host [host [host ...]]\n",
110 int read_options (int argc, char **argv)
116 optchar = getopt (argc, argv, "46c:i:");
125 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
131 new_count = atoi (optarg);
133 opt_count = new_count;
140 new_interval = atof (optarg);
141 if (new_interval >= 0.2)
142 opt_interval = new_interval;
147 usage_exit (argv[0]);
154 void print_host (pingobj_iter_t *iter)
159 ping_context_t *context;
161 buffer_len = sizeof (latency);
162 ping_iterator_get_info (iter, PING_INFO_LATENCY,
163 &latency, &buffer_len);
165 buffer_len = sizeof (sequence);
166 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
167 &sequence, &buffer_len);
169 context = (ping_context_t *) ping_iterator_get_context (iter);
175 context->latency_total += latency;
177 if ((context->latency_max < 0.0) || (context->latency_max < latency))
178 context->latency_max = latency;
179 if ((context->latency_min < 0.0) || (context->latency_min > latency))
180 context->latency_min = latency;
182 printf ("echo reply from %s (%s): icmp_seq=%u time=%.1f ms\n",
183 context->host, context->addr,
184 (unsigned int) sequence, latency);
188 printf ("echo reply from %s (%s): icmp_seq=%u timeout\n",
189 context->host, context->addr,
190 (unsigned int) sequence);
194 void time_normalize (struct timespec *ts)
196 while (ts->tv_nsec < 0)
205 ts->tv_nsec += 1000000000;
208 while (ts->tv_nsec >= 1000000000)
211 ts->tv_nsec -= 1000000000;
215 void time_calc (struct timespec *ts_dest,
216 const struct timespec *ts_int,
217 const struct timeval *tv_begin,
218 const struct timeval *tv_end)
220 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
221 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
222 time_normalize (ts_dest);
224 /* Assure that `(begin + interval) > end'.
225 * This may seem overly complicated, but `tv_sec' is of type `time_t'
226 * which may be `unsigned. *sigh* */
227 if ((tv_end->tv_sec > ts_dest->tv_sec)
228 || ((tv_end->tv_sec == ts_dest->tv_sec)
229 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
232 ts_dest->tv_nsec = 0;
236 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
237 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
238 time_normalize (ts_dest);
241 int main (int argc, char **argv)
244 pingobj_iter_t *iter;
246 struct sigaction sigint_action;
248 struct timeval tv_begin;
249 struct timeval tv_end;
250 struct timespec ts_wait;
251 struct timespec ts_int;
258 fprintf (stderr, "Need superuser privileges to open a RAW socket. Sorry.\n");
262 optind = read_options (argc, argv);
265 usage_exit (argv[0]);
267 if ((ping = ping_construct ()) == NULL)
269 fprintf (stderr, "ping_construct failed\n");
277 temp_nsec = modf (opt_interval, &temp_sec);
278 ts_int.tv_sec = (time_t) temp_sec;
279 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
281 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
284 if (opt_addrfamily != PING_DEF_AF)
285 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
287 for (i = optind; i < argc; i++)
289 if (ping_host_add (ping, argv[i]) > 0)
291 fprintf (stderr, "ping_host_add (%s) failed\n", argv[i]);
296 for (iter = ping_iterator_get (ping);
298 iter = ping_iterator_next (iter))
300 ping_context_t *context;
303 context = context_create ();
305 buffer_size = sizeof (context->host);
306 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
308 buffer_size = sizeof (context->addr);
309 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
311 ping_iterator_set_context (iter, (void *) context);
314 memset (&sigint_action, '\0', sizeof (sigint_action));
315 sigint_action.sa_handler = sigint_handler;
316 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
318 perror ("sigaction");
322 while (opt_count != 0)
326 if (gettimeofday (&tv_begin, NULL) < 0)
328 perror ("gettimeofday");
332 if (ping_send (ping) < 0)
334 fprintf (stderr, "ping_send failed\n");
338 for (iter = ping_iterator_get (ping);
340 iter = ping_iterator_next (iter))
346 /* Don't sleep in the last iteration */
350 if (gettimeofday (&tv_end, NULL) < 0)
352 perror ("gettimeofday");
356 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
358 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
359 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
363 perror ("nanosleep");
366 else if (opt_count == 0)
375 } /* while (opt_count != 0) */
377 for (iter = ping_iterator_get (ping);
379 iter = ping_iterator_next (iter))
381 ping_context_t *context;
383 context = ping_iterator_get_context (iter);
385 printf ("\n--- %s ping statistics ---\n"
386 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n"
387 "rtt min/avg/max/mdev = %.3f/%.3f/%.3f/%.3f ms\n",
388 context->host, context->req_sent, context->req_rcvd,
389 100.0 * (context->req_sent - context->req_rcvd) / ((double) context->req_sent),
390 context->latency_total,
391 context->latency_min,
392 context->latency_total / ((double) context->req_rcvd),
393 context->latency_max,
396 ping_iterator_set_context (iter, NULL);