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];
70 double latency_total_square;
73 static double opt_interval = 1.0;
74 static int opt_addrfamily = PING_DEF_AF;
75 static int opt_count = -1;
77 void sigint_handler (int signal)
83 ping_context_t *context_create (void)
87 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
90 memset (ret, '\0', sizeof (ping_context_t));
92 ret->latency_min = -1.0;
93 ret->latency_max = -1.0;
94 ret->latency_total = 0.0;
95 ret->latency_total_square = 0.0;
100 void context_destroy (ping_context_t *context)
105 void usage_exit (const char *name)
107 fprintf (stderr, "Usage: %s [-46] [-c count] [-i interval] host [host [host ...]]\n",
112 int read_options (int argc, char **argv)
118 optchar = getopt (argc, argv, "46c:hi:");
127 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
133 new_count = atoi (optarg);
135 opt_count = new_count;
142 new_interval = atof (optarg);
143 if (new_interval >= 0.2)
144 opt_interval = new_interval;
150 usage_exit (argv[0]);
157 void print_host (pingobj_iter_t *iter)
160 unsigned int sequence;
163 ping_context_t *context;
165 buffer_len = sizeof (latency);
166 ping_iterator_get_info (iter, PING_INFO_LATENCY,
167 &latency, &buffer_len);
169 buffer_len = sizeof (sequence);
170 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
171 &sequence, &buffer_len);
174 ping_iterator_get_info (iter, PING_INFO_DATA,
177 context = (ping_context_t *) ping_iterator_get_context (iter);
183 context->latency_total += latency;
184 context->latency_total_square += (latency * latency);
186 if ((context->latency_max < 0.0) || (context->latency_max < latency))
187 context->latency_max = latency;
188 if ((context->latency_min < 0.0) || (context->latency_min > latency))
189 context->latency_min = latency;
191 printf ("%u bytes from %s (%s): icmp_seq=%u time=%.2f ms\n",
192 (unsigned int) data_len,
193 context->host, context->addr,
194 (unsigned int) sequence, latency);
198 printf ("echo reply from %s (%s): icmp_seq=%u timeout\n",
199 context->host, context->addr,
200 (unsigned int) sequence);
204 void time_normalize (struct timespec *ts)
206 while (ts->tv_nsec < 0)
215 ts->tv_nsec += 1000000000;
218 while (ts->tv_nsec >= 1000000000)
221 ts->tv_nsec -= 1000000000;
225 void time_calc (struct timespec *ts_dest,
226 const struct timespec *ts_int,
227 const struct timeval *tv_begin,
228 const struct timeval *tv_end)
230 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
231 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
232 time_normalize (ts_dest);
234 /* Assure that `(begin + interval) > end'.
235 * This may seem overly complicated, but `tv_sec' is of type `time_t'
236 * which may be `unsigned. *sigh* */
237 if ((tv_end->tv_sec > ts_dest->tv_sec)
238 || ((tv_end->tv_sec == ts_dest->tv_sec)
239 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
242 ts_dest->tv_nsec = 0;
246 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
247 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
248 time_normalize (ts_dest);
251 int main (int argc, char **argv)
254 pingobj_iter_t *iter;
256 struct sigaction sigint_action;
258 struct timeval tv_begin;
259 struct timeval tv_end;
260 struct timespec ts_wait;
261 struct timespec ts_int;
266 optind = read_options (argc, argv);
269 usage_exit (argv[0]);
273 fprintf (stderr, "Need superuser privileges to open a RAW socket. Sorry.\n");
277 if ((ping = ping_construct ()) == NULL)
279 fprintf (stderr, "ping_construct failed\n");
287 temp_nsec = modf (opt_interval, &temp_sec);
288 ts_int.tv_sec = (time_t) temp_sec;
289 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
291 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
294 if (opt_addrfamily != PING_DEF_AF)
295 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
297 for (i = optind; i < argc; i++)
299 if (ping_host_add (ping, argv[i]) > 0)
301 fprintf (stderr, "ping_host_add (%s) failed\n", argv[i]);
306 for (iter = ping_iterator_get (ping);
308 iter = ping_iterator_next (iter))
310 ping_context_t *context;
313 context = context_create ();
315 buffer_size = sizeof (context->host);
316 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
318 buffer_size = sizeof (context->addr);
319 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
321 ping_iterator_set_context (iter, (void *) context);
324 memset (&sigint_action, '\0', sizeof (sigint_action));
325 sigint_action.sa_handler = sigint_handler;
326 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
328 perror ("sigaction");
332 while (opt_count != 0)
336 if (gettimeofday (&tv_begin, NULL) < 0)
338 perror ("gettimeofday");
342 if (ping_send (ping) < 0)
344 fprintf (stderr, "ping_send failed\n");
348 for (iter = ping_iterator_get (ping);
350 iter = ping_iterator_next (iter))
356 /* Don't sleep in the last iteration */
360 if (gettimeofday (&tv_end, NULL) < 0)
362 perror ("gettimeofday");
366 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
368 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
369 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
373 perror ("nanosleep");
376 else if (opt_count == 0)
385 } /* while (opt_count != 0) */
387 for (iter = ping_iterator_get (ping);
389 iter = ping_iterator_next (iter))
391 ping_context_t *context;
393 context = ping_iterator_get_context (iter);
395 printf ("\n--- %s ping statistics ---\n"
396 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
397 context->host, context->req_sent, context->req_rcvd,
398 100.0 * (context->req_sent - context->req_rcvd) / ((double) context->req_sent),
399 context->latency_total);
401 if (context->req_rcvd != 0)
407 num_total = (double) context->req_rcvd;
409 average = context->latency_total / num_total;
410 deviation = sqrt (((num_total * context->latency_total_square) - (context->latency_total * context->latency_total))
411 / (num_total * (num_total - 1.0)));
413 printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n",
414 context->latency_min,
416 context->latency_max,
420 ping_iterator_set_context (iter, NULL);