2 * Object oriented C module to send ICMP and ICMPv6 `echo's.
3 * Copyright (C) 2006-2011 Florian octo Forster <ff at octo.it>
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; only version 2 of the License is
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
29 # include <inttypes.h>
33 # error "You don't have the standard C99 header files installed"
34 #endif /* STDC_HEADERS */
44 #if TIME_WITH_SYS_TIME
45 # include <sys/time.h>
49 # include <sys/time.h>
56 # include <sys/socket.h>
59 # include <netinet/in.h>
62 # include <netinet/ip.h>
66 # include <netdb.h> /* NI_MAXHOST */
74 #include <sys/types.h>
80 # define NCURSES_OPAQUE 1
81 /* http://newsgroups.derkeiler.com/Archive/Rec/rec.games.roguelike.development/2010-09/msg00050.html */
82 # define _X_OPEN_SOURCE_EXTENDED
83 # include <ncursesw/ncurses.h>
85 /* some evilness: ncurses knows how to detect unicode, but won't
86 expose it, yet there's this function that does what we want, so we
87 steal it away from it */
88 extern int _nc_unicode_locale(void);
90 # define OPING_GREEN 1
91 # define OPING_YELLOW 2
93 # define OPING_GREEN_HIST 4
94 # define OPING_YELLOW_HIST 5
95 # define OPING_RED_HIST 6
97 static char const * const hist_symbols_utf8[] = {
98 "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" };
99 static size_t const hist_symbols_utf8_num = sizeof (hist_symbols_utf8)
100 / sizeof (hist_symbols_utf8[0]);
102 /* scancodes for 6 levels of horizontal bars, ncurses-specific */
103 /* those are not the usual constants because those are not constant */
104 static int const hist_symbols_acs[] = {
105 115, /* ACS_S9 "⎽" */
106 114, /* ACS_S7 "⎼" */
107 113, /* ACS_S5 "─" */
108 112, /* ACS_S3 "⎻" */
111 static size_t const hist_symbols_acs_num = sizeof (hist_symbols_acs)
112 / sizeof (hist_symbols_acs[0]);
114 /* use different colors without a background for scancodes */
115 static int const hist_colors_utf8[] = {
116 OPING_GREEN_HIST, OPING_YELLOW_HIST, OPING_RED_HIST };
117 static int const hist_colors_acs[] = {
118 OPING_GREEN, OPING_YELLOW, OPING_RED };
119 /* assuming that both arrays are the same size */
120 static size_t const hist_colors_num = sizeof (hist_colors_utf8)
121 / sizeof (hist_colors_utf8[0]);
126 #ifndef _POSIX_SAVED_IDS
127 # define _POSIX_SAVED_IDS 0
130 /* Remove GNU specific __attribute__ settings when using another compiler */
132 # define __attribute__(x) /**/
135 typedef struct ping_context
137 char host[NI_MAXHOST];
138 char addr[NI_MAXHOST];
146 double latency_total;
147 double latency_total_square;
154 static double opt_interval = 1.0;
155 static int opt_addrfamily = PING_DEF_AF;
156 static char *opt_srcaddr = NULL;
157 static char *opt_device = NULL;
158 static char *opt_filename = NULL;
159 static int opt_count = -1;
160 static int opt_send_ttl = 64;
161 static uint8_t opt_send_qos = 0;
163 static int host_num = 0;
166 static WINDOW *main_win = NULL;
169 static void sigint_handler (int signal) /* {{{ */
171 /* Make compiler happy */
175 } /* }}} void sigint_handler */
177 static ping_context_t *context_create (void) /* {{{ */
181 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
184 memset (ret, '\0', sizeof (ping_context_t));
186 ret->latency_min = -1.0;
187 ret->latency_max = -1.0;
188 ret->latency_total = 0.0;
189 ret->latency_total_square = 0.0;
196 } /* }}} ping_context_t *context_create */
198 static void context_destroy (ping_context_t *context) /* {{{ */
204 if (context->window != NULL)
206 delwin (context->window);
207 context->window = NULL;
212 } /* }}} void context_destroy */
214 static double context_get_average (ping_context_t *ctx) /* {{{ */
221 if (ctx->req_rcvd < 1)
224 num_total = (double) ctx->req_rcvd;
225 return (ctx->latency_total / num_total);
226 } /* }}} double context_get_average */
228 static double context_get_stddev (ping_context_t *ctx) /* {{{ */
235 if (ctx->req_rcvd < 1)
237 else if (ctx->req_rcvd < 2)
240 num_total = (double) ctx->req_rcvd;
241 return (sqrt (((num_total * ctx->latency_total_square)
242 - (ctx->latency_total * ctx->latency_total))
243 / (num_total * (num_total - 1.0))));
244 } /* }}} double context_get_stddev */
246 static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
251 if (ctx->req_sent < 1)
254 return (100.0 * (ctx->req_sent - ctx->req_rcvd)
255 / ((double) ctx->req_sent));
256 } /* }}} double context_get_packet_loss */
258 static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
260 pingobj_iter_t *iter;
267 for (iter = ping_iterator_get (ping);
269 iter = ping_iterator_next (iter))
271 ping_context_t *context;
274 context = context_create ();
275 context->index = index;
277 buffer_size = sizeof (context->host);
278 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
280 buffer_size = sizeof (context->addr);
281 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
283 ping_iterator_set_context (iter, (void *) context);
289 } /* }}} int ping_initialize_contexts */
291 static void usage_exit (const char *name, int status) /* {{{ */
293 fprintf (stderr, "Usage: %s [OPTIONS] "
294 "-f filename | host [host [host ...]]\n"
296 "\nAvailable options:\n"
297 " -4|-6 force the use of IPv4 or IPv6\n"
298 " -c count number of ICMP packets to send\n"
299 " -i interval interval with which to send ICMP packets\n"
300 " -t ttl time to live for each ICMP packet\n"
301 " -Q qos Quality of Service (QoS) of outgoing packets\n"
302 " Use \"-Q help\" for a list of valid options.\n"
303 " -I srcaddr source address\n"
304 " -D device outgoing interface name\n"
305 " -f filename filename to read hosts from\n"
307 "\noping "PACKAGE_VERSION", http://verplant.org/liboping/\n"
308 "by Florian octo Forster <octo@verplant.org>\n"
309 "for contributions see `AUTHORS'\n",
312 } /* }}} void usage_exit */
314 __attribute__((noreturn))
315 static void usage_qos_exit (const char *arg, int status) /* {{{ */
318 fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
320 fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
322 " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
324 " be Best Effort (BE, default PHB).\n"
325 " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
326 " (low delay, low loss, low jitter)\n"
327 " va Voice Admit (VA) DSCP (RFC 5865).\n"
328 " (capacity-admitted traffic)\n"
329 " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
330 " For example: \"af12\" (class 1, precedence 2)\n"
331 " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
332 " For example: \"cs1\" (priority traffic)\n"
334 " Type of Service (IPv4, RFC 1349, obsolete)\n"
336 " lowdelay (%#04x) minimize delay\n"
337 " throughput (%#04x) maximize throughput\n"
338 " reliability (%#04x) maximize reliability\n"
339 " mincost (%#04x) minimize monetary cost\n"
341 " Specify manually\n"
343 " 0x00 - 0xff Hexadecimal numeric specification.\n"
344 " 0 - 255 Decimal numeric specification.\n"
346 (unsigned int) IPTOS_LOWDELAY,
347 (unsigned int) IPTOS_THROUGHPUT,
348 (unsigned int) IPTOS_RELIABILITY,
349 (unsigned int) IPTOS_MINCOST);
352 } /* }}} void usage_qos_exit */
354 static int set_opt_send_qos (const char *opt) /* {{{ */
359 if (strcasecmp ("help", opt) == 0)
360 usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
361 /* DiffServ (RFC 2474): */
362 /* - Best effort (BE) */
363 else if (strcasecmp ("be", opt) == 0)
365 /* - Expedited Forwarding (EF, RFC 3246) */
366 else if (strcasecmp ("ef", opt) == 0)
367 opt_send_qos = 0xB8; /* == 0x2E << 2 */
368 /* - Voice Admit (VA, RFC 5865) */
369 else if (strcasecmp ("va", opt) == 0)
370 opt_send_qos = 0xB0; /* == 0x2D << 2 */
371 /* - Assured Forwarding (AF, RFC 2597) */
372 else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
373 && (strlen (opt) == 4))
379 /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
382 else if (opt[2] == '2')
384 else if (opt[2] == '3')
386 else if (opt[2] == '4')
389 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
391 /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
394 else if (opt[3] == '2')
396 else if (opt[3] == '3')
399 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
401 dscp = (8 * class) + (2 * prec);
402 /* The lower two bits are used for Explicit Congestion Notification (ECN) */
403 opt_send_qos = dscp << 2;
405 /* - Class Selector (CS) */
406 else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
407 && (strlen (opt) == 3))
411 if ((opt[2] < '0') || (opt[2] > '7'))
412 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
414 /* Not exactly legal by the C standard, but I don't know of any
415 * system not supporting this hack. */
416 class = ((uint8_t) opt[2]) - ((uint8_t) '0');
417 opt_send_qos = class << 5;
419 /* Type of Service (RFC 1349) */
420 else if (strcasecmp ("lowdelay", opt) == 0)
421 opt_send_qos = IPTOS_LOWDELAY;
422 else if (strcasecmp ("throughput", opt) == 0)
423 opt_send_qos = IPTOS_THROUGHPUT;
424 else if (strcasecmp ("reliability", opt) == 0)
425 opt_send_qos = IPTOS_RELIABILITY;
426 else if (strcasecmp ("mincost", opt) == 0)
427 opt_send_qos = IPTOS_MINCOST;
436 value = strtoul (opt, &endptr, /* base = */ 0);
437 if ((errno != 0) || (endptr == opt)
438 || (endptr == NULL) || (*endptr != 0)
440 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
442 opt_send_qos = (uint8_t) value;
446 } /* }}} int set_opt_send_qos */
448 static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
460 case 0x00: dscp_str = "be"; break;
461 case 0x2e: dscp_str = "ef"; break;
462 case 0x2d: dscp_str = "va"; break;
463 case 0x0a: dscp_str = "af11"; break;
464 case 0x0c: dscp_str = "af12"; break;
465 case 0x0e: dscp_str = "af13"; break;
466 case 0x12: dscp_str = "af21"; break;
467 case 0x14: dscp_str = "af22"; break;
468 case 0x16: dscp_str = "af23"; break;
469 case 0x1a: dscp_str = "af31"; break;
470 case 0x1c: dscp_str = "af32"; break;
471 case 0x1e: dscp_str = "af33"; break;
472 case 0x22: dscp_str = "af41"; break;
473 case 0x24: dscp_str = "af42"; break;
474 case 0x26: dscp_str = "af43"; break;
475 case 0x08: dscp_str = "cs1"; break;
476 case 0x10: dscp_str = "cs2"; break;
477 case 0x18: dscp_str = "cs3"; break;
478 case 0x20: dscp_str = "cs4"; break;
479 case 0x28: dscp_str = "cs5"; break;
480 case 0x30: dscp_str = "cs6"; break;
481 case 0x38: dscp_str = "cs7"; break;
482 default: dscp_str = NULL;
487 case 0x01: ecn_str = ",ecn(1)"; break;
488 case 0x02: ecn_str = ",ecn(0)"; break;
489 case 0x03: ecn_str = ",ce"; break;
490 default: ecn_str = "";
493 if (dscp_str == NULL)
494 snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
496 snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
497 buffer[buffer_size - 1] = 0;
500 } /* }}} char *format_qos */
502 static int read_options (int argc, char **argv) /* {{{ */
508 optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:");
517 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
523 new_count = atoi (optarg);
525 opt_count = new_count;
527 fprintf(stderr, "Ignoring invalid count: %s\n",
534 if (opt_filename != NULL)
536 opt_filename = strdup (optarg);
543 new_interval = atof (optarg);
544 if (new_interval < 0.001)
545 fprintf (stderr, "Ignoring invalid interval: %s\n",
548 opt_interval = new_interval;
553 if (opt_srcaddr != NULL)
555 opt_srcaddr = strdup (optarg);
566 new_send_ttl = atoi (optarg);
567 if ((new_send_ttl > 0) && (new_send_ttl < 256))
568 opt_send_ttl = new_send_ttl;
570 fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
576 set_opt_send_qos (optarg);
580 usage_exit (argv[0], 0);
583 usage_exit (argv[0], 1);
588 } /* }}} read_options */
590 static void time_normalize (struct timespec *ts) /* {{{ */
592 while (ts->tv_nsec < 0)
601 ts->tv_nsec += 1000000000;
604 while (ts->tv_nsec >= 1000000000)
607 ts->tv_nsec -= 1000000000;
609 } /* }}} void time_normalize */
611 static void time_calc (struct timespec *ts_dest, /* {{{ */
612 const struct timespec *ts_int,
613 const struct timeval *tv_begin,
614 const struct timeval *tv_end)
616 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
617 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
618 time_normalize (ts_dest);
620 /* Assure that `(begin + interval) > end'.
621 * This may seem overly complicated, but `tv_sec' is of type `time_t'
622 * which may be `unsigned. *sigh* */
623 if ((tv_end->tv_sec > ts_dest->tv_sec)
624 || ((tv_end->tv_sec == ts_dest->tv_sec)
625 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
628 ts_dest->tv_nsec = 0;
632 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
633 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
634 time_normalize (ts_dest);
635 } /* }}} void time_calc */
638 static int update_prettyping_graph (ping_context_t *ctx, /* {{{ */
639 double latency, unsigned int sequence)
641 int color = OPING_RED;
642 char const *symbol = "!";
644 size_t hist_symbols_num;
645 size_t index_symbols;
650 x_max = getmaxx (ctx->window);
651 x_pos = ((sequence - 1) % (x_max - 4)) + 2;
653 if (_nc_unicode_locale())
655 hist_symbols_num = hist_symbols_utf8_num;
658 hist_symbols_num = hist_symbols_acs_num;
667 ratio = latency / PING_DEF_TTL;
672 intensity = (size_t) ((ratio * hist_symbols_num
673 * hist_colors_num) - 1);
675 index_colors = intensity / hist_symbols_num;
676 assert (index_colors < hist_colors_num);
678 index_symbols = intensity % hist_symbols_num;
679 if (_nc_unicode_locale())
681 color = hist_colors_utf8[index_colors];
682 symbol = hist_symbols_utf8[index_symbols];
686 color = hist_colors_acs[index_colors];
687 symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
690 else /* if (!(latency >= 0.0)) */
691 wattron (ctx->window, A_BOLD);
693 wattron (ctx->window, COLOR_PAIR(color));
694 if (_nc_unicode_locale())
696 mvwprintw (ctx->window,
702 mvwaddch (ctx->window,
707 wattroff (ctx->window, COLOR_PAIR(color));
709 /* Use negation here to handle NaN correctly. */
710 if (!(latency >= 0.0))
711 wattroff (ctx->window, A_BOLD);
713 wprintw (ctx->window, " ");
715 } /* }}} int update_prettyping_graph */
717 static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
719 double latency = -1.0;
720 size_t buffer_len = sizeof (latency);
722 ping_iterator_get_info (iter, PING_INFO_LATENCY,
723 &latency, &buffer_len);
725 unsigned int sequence = 0;
726 buffer_len = sizeof (sequence);
727 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
728 &sequence, &buffer_len);
731 if ((ctx == NULL) || (ctx->window == NULL))
734 /* werase (ctx->window); */
736 box (ctx->window, 0, 0);
737 wattron (ctx->window, A_BOLD);
738 mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
740 wattroff (ctx->window, A_BOLD);
741 wprintw (ctx->window, "ping statistics ");
742 mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
743 "%i packets transmitted, %i received, %.2f%% packet "
745 ctx->req_sent, ctx->req_rcvd,
746 context_get_packet_loss (ctx),
748 if (ctx->req_rcvd != 0)
753 average = context_get_average (ctx);
754 deviation = context_get_stddev (ctx);
756 mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
757 "rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms",
764 if (has_colors () == TRUE)
765 update_prettyping_graph (ctx, latency, sequence);
767 wrefresh (ctx->window);
770 } /* }}} int update_stats_from_context */
772 static int on_resize (pingobj_t *ping) /* {{{ */
774 pingobj_iter_t *iter;
779 getmaxyx (stdscr, height, width);
780 if ((height < 1) || (width < 1))
783 main_win_height = height - (5 * host_num);
784 wresize (main_win, main_win_height, /* width = */ width);
785 /* Allow scrolling */
786 scrollok (main_win, TRUE);
787 /* wsetscrreg (main_win, 0, main_win_height - 1); */
788 /* Allow hardware accelerated scrolling. */
789 idlok (main_win, TRUE);
792 for (iter = ping_iterator_get (ping);
794 iter = ping_iterator_next (iter))
796 ping_context_t *context;
798 context = ping_iterator_get_context (iter);
802 if (context->window != NULL)
804 delwin (context->window);
805 context->window = NULL;
807 context->window = newwin (/* height = */ 5,
809 /* y = */ main_win_height + (5 * context->index),
816 static int check_resize (pingobj_t *ping) /* {{{ */
822 int key = wgetch (stdscr);
825 else if (key == KEY_RESIZE)
830 return (on_resize (ping));
833 } /* }}} int check_resize */
835 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
837 pingobj_iter_t *iter;
845 nodelay (stdscr, TRUE);
847 getmaxyx (stdscr, height, width);
848 if ((height < 1) || (width < 1))
851 if (has_colors () == TRUE)
854 init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
855 init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
856 init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
857 init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
858 init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
859 init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
862 main_win_height = height - (5 * host_num);
863 main_win = newwin (/* height = */ main_win_height,
865 /* y = */ 0, /* x = */ 0);
866 /* Allow scrolling */
867 scrollok (main_win, TRUE);
868 /* wsetscrreg (main_win, 0, main_win_height - 1); */
869 /* Allow hardware accelerated scrolling. */
870 idlok (main_win, TRUE);
871 wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
874 for (iter = ping_iterator_get (ping);
876 iter = ping_iterator_next (iter))
878 ping_context_t *context;
880 context = ping_iterator_get_context (iter);
884 if (context->window != NULL)
886 delwin (context->window);
887 context->window = NULL;
889 context->window = newwin (/* height = */ 5,
891 /* y = */ main_win_height + (5 * context->index),
896 /* Don't know what good this does exactly, but without this code
897 * "check_resize" will be called right after startup and *somehow*
898 * this leads to display errors. If we purge all initial characters
899 * here, the problem goes away. "wgetch" is non-blocking due to
900 * "nodelay" (see above). */
901 while (wgetch (stdscr) != ERR)
903 /* eat up characters */;
907 } /* }}} int pre_loop_hook */
909 static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
911 return (check_resize (ping));
912 } /* }}} int pre_sleep_hook */
914 static int post_sleep_hook (pingobj_t *ping) /* {{{ */
916 return (check_resize (ping));
917 } /* }}} int pre_sleep_hook */
918 #else /* if !USE_NCURSES */
919 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
921 pingobj_iter_t *iter;
923 for (iter = ping_iterator_get (ping);
925 iter = ping_iterator_next (iter))
930 ctx = ping_iterator_get_context (iter);
935 ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
937 printf ("PING %s (%s) %zu bytes of data.\n",
938 ctx->host, ctx->addr, buffer_size);
942 } /* }}} int pre_loop_hook */
944 static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
949 } /* }}} int pre_sleep_hook */
951 static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
954 } /* }}} int post_sleep_hook */
957 static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
958 __attribute__((unused)) int index)
961 unsigned int sequence;
964 char recv_qos_str[16];
967 ping_context_t *context;
970 buffer_len = sizeof (latency);
971 ping_iterator_get_info (iter, PING_INFO_LATENCY,
972 &latency, &buffer_len);
975 buffer_len = sizeof (sequence);
976 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
977 &sequence, &buffer_len);
980 buffer_len = sizeof (recv_ttl);
981 ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
982 &recv_ttl, &buffer_len);
985 buffer_len = sizeof (recv_qos);
986 ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
987 &recv_qos, &buffer_len);
990 ping_iterator_get_info (iter, PING_INFO_DATA,
993 context = (ping_context_t *) ping_iterator_get_context (iter);
996 # define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
998 # define HOST_PRINTF(...) printf(__VA_ARGS__)
1001 context->req_sent++;
1004 context->req_rcvd++;
1005 context->latency_total += latency;
1006 context->latency_total_square += (latency * latency);
1008 if ((context->latency_max < 0.0) || (context->latency_max < latency))
1009 context->latency_max = latency;
1010 if ((context->latency_min < 0.0) || (context->latency_min > latency))
1011 context->latency_min = latency;
1014 if (has_colors () == TRUE)
1016 int color = OPING_GREEN;
1017 double average = context_get_average (context);
1018 double stddev = context_get_stddev (context);
1020 if ((latency < (average - (2 * stddev)))
1021 || (latency > (average + (2 * stddev))))
1023 else if ((latency < (average - stddev))
1024 || (latency > (average + stddev)))
1025 color = OPING_YELLOW;
1027 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1028 data_len, context->host, context->addr,
1030 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1031 if ((recv_qos != 0) || (opt_send_qos != 0))
1033 HOST_PRINTF ("qos=%s ",
1034 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1036 HOST_PRINTF ("time=");
1037 wattron (main_win, COLOR_PAIR(color));
1038 HOST_PRINTF ("%.2f", latency);
1039 wattroff (main_win, COLOR_PAIR(color));
1040 HOST_PRINTF (" ms\n");
1045 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1047 context->host, context->addr,
1048 sequence, recv_ttl);
1049 if ((recv_qos != 0) || (opt_send_qos != 0))
1051 HOST_PRINTF ("qos=%s ",
1052 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1054 HOST_PRINTF ("time=%.2f ms\n", latency);
1062 if (has_colors () == TRUE)
1064 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
1065 context->host, context->addr,
1067 wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1068 HOST_PRINTF ("timeout");
1069 wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1075 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
1076 context->host, context->addr,
1084 update_stats_from_context (context, iter);
1085 wrefresh (main_win);
1087 } /* }}} void update_host_hook */
1089 static int post_loop_hook (pingobj_t *ping) /* {{{ */
1091 pingobj_iter_t *iter;
1097 for (iter = ping_iterator_get (ping);
1099 iter = ping_iterator_next (iter))
1101 ping_context_t *context;
1103 context = ping_iterator_get_context (iter);
1105 printf ("\n--- %s ping statistics ---\n"
1106 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
1107 context->host, context->req_sent, context->req_rcvd,
1108 context_get_packet_loss (context),
1109 context->latency_total);
1111 if (context->req_rcvd != 0)
1116 average = context_get_average (context);
1117 deviation = context_get_stddev (context);
1119 printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n",
1120 context->latency_min,
1122 context->latency_max,
1126 ping_iterator_set_context (iter, NULL);
1127 context_destroy (context);
1131 } /* }}} int post_loop_hook */
1133 int main (int argc, char **argv) /* {{{ */
1136 pingobj_iter_t *iter;
1138 struct sigaction sigint_action;
1140 struct timeval tv_begin;
1141 struct timeval tv_end;
1142 struct timespec ts_wait;
1143 struct timespec ts_int;
1148 #if _POSIX_SAVED_IDS
1149 uid_t saved_set_uid;
1151 /* Save the old effective user id */
1152 saved_set_uid = geteuid ();
1153 /* Set the effective user ID to the real user ID without changing the
1154 * saved set-user ID */
1155 status = seteuid (getuid ());
1158 fprintf (stderr, "Temporarily dropping privileges "
1159 "failed: %s\n", strerror (errno));
1160 exit (EXIT_FAILURE);
1164 setlocale(LC_ALL, "");
1165 optind = read_options (argc, argv);
1167 #if !_POSIX_SAVED_IDS
1168 /* Cannot temporarily drop privileges -> reject every file but "-". */
1169 if ((opt_filename != NULL)
1170 && (strcmp ("-", opt_filename) != 0)
1171 && (getuid () != geteuid ()))
1173 fprintf (stderr, "Your real and effective user IDs don't "
1174 "match. Reading from a file (option '-f')\n"
1175 "is therefore too risky. You can still read "
1176 "from STDIN using '-f -' if you like.\n"
1178 exit (EXIT_FAILURE);
1182 if ((optind >= argc) && (opt_filename == NULL)) {
1183 usage_exit (argv[0], 1);
1186 if ((ping = ping_construct ()) == NULL)
1188 fprintf (stderr, "ping_construct failed\n");
1192 if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
1194 fprintf (stderr, "Setting TTL to %i failed: %s\n",
1195 opt_send_ttl, ping_get_error (ping));
1198 if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
1200 fprintf (stderr, "Setting TOS to %i failed: %s\n",
1201 opt_send_qos, ping_get_error (ping));
1208 temp_nsec = modf (opt_interval, &temp_sec);
1209 ts_int.tv_sec = (time_t) temp_sec;
1210 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
1212 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
1215 if (opt_addrfamily != PING_DEF_AF)
1216 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
1218 if (opt_srcaddr != NULL)
1220 if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
1222 fprintf (stderr, "Setting source address failed: %s\n",
1223 ping_get_error (ping));
1227 if (opt_device != NULL)
1229 if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
1231 fprintf (stderr, "Setting device failed: %s\n",
1232 ping_get_error (ping));
1236 if (opt_filename != NULL)
1242 if (strcmp (opt_filename, "-") == 0)
1244 infile = fdopen(0, "r");
1246 infile = fopen(opt_filename, "r");
1250 fprintf (stderr, "Opening %s failed: %s\n",
1251 (strcmp (opt_filename, "-") == 0)
1252 ? "STDIN" : opt_filename,
1257 #if _POSIX_SAVED_IDS
1258 /* Regain privileges */
1259 status = seteuid (saved_set_uid);
1262 fprintf (stderr, "Temporarily re-gaining privileges "
1263 "failed: %s\n", strerror (errno));
1264 exit (EXIT_FAILURE);
1268 while (fgets(line, sizeof(line), infile))
1270 /* Strip whitespace */
1271 if (sscanf(line, "%s", host) != 1)
1274 if ((host[0] == 0) || (host[0] == '#'))
1277 if (ping_host_add(ping, host) < 0)
1279 const char *errmsg = ping_get_error (ping);
1281 fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
1290 #if _POSIX_SAVED_IDS
1291 /* Drop privileges */
1292 status = seteuid (getuid ());
1295 fprintf (stderr, "Temporarily dropping privileges "
1296 "failed: %s\n", strerror (errno));
1297 exit (EXIT_FAILURE);
1304 #if _POSIX_SAVED_IDS
1305 /* Regain privileges */
1306 status = seteuid (saved_set_uid);
1309 fprintf (stderr, "Temporarily re-gaining privileges "
1310 "failed: %s\n", strerror (errno));
1311 exit (EXIT_FAILURE);
1315 for (i = optind; i < argc; i++)
1317 if (ping_host_add (ping, argv[i]) < 0)
1319 const char *errmsg = ping_get_error (ping);
1321 fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
1330 /* Permanently drop root privileges if we're setuid-root. */
1331 status = setuid (getuid ());
1334 fprintf (stderr, "Dropping privileges failed: %s\n",
1336 exit (EXIT_FAILURE);
1339 #if _POSIX_SAVED_IDS
1340 saved_set_uid = (uid_t) -1;
1343 ping_initialize_contexts (ping);
1348 memset (&sigint_action, '\0', sizeof (sigint_action));
1349 sigint_action.sa_handler = sigint_handler;
1350 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
1352 perror ("sigaction");
1356 pre_loop_hook (ping);
1358 while (opt_count != 0)
1363 if (gettimeofday (&tv_begin, NULL) < 0)
1365 perror ("gettimeofday");
1369 if (ping_send (ping) < 0)
1371 fprintf (stderr, "ping_send failed: %s\n",
1372 ping_get_error (ping));
1377 for (iter = ping_iterator_get (ping);
1379 iter = ping_iterator_next (iter))
1381 update_host_hook (iter, index);
1385 pre_sleep_hook (ping);
1387 /* Don't sleep in the last iteration */
1391 if (gettimeofday (&tv_end, NULL) < 0)
1393 perror ("gettimeofday");
1397 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
1399 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
1400 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
1404 perror ("nanosleep");
1407 else if (opt_count == 0)
1414 post_sleep_hook (ping);
1418 } /* while (opt_count != 0) */
1420 post_loop_hook (ping);
1422 ping_destroy (ping);
1425 } /* }}} int main */
1427 /* vim: set fdm=marker : */