b4999c5c11f7e9aff2a585d02c2a6a25390849c2
1 /**
2 * Object oriented C module to send ICMP and ICMPv6 `echo's.
3 * Copyright (C) 2006-2016 Florian octo Forster <ff at octo.it>
4 *
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
8 * applicable.
9 *
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.
14 *
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
18 */
20 #if HAVE_CONFIG_H
21 # include <config.h>
22 #endif
24 #if STDC_HEADERS
25 # include <stdlib.h>
26 # include <stdio.h>
27 # include <string.h>
28 # include <stdint.h>
29 # include <inttypes.h>
30 # include <errno.h>
31 # include <assert.h>
32 #else
33 # error "You don't have the standard C99 header files installed"
34 #endif /* STDC_HEADERS */
36 #if HAVE_UNISTD_H
37 # include <unistd.h>
38 #endif
40 #if HAVE_MATH_H
41 # include <math.h>
42 #endif
44 #if TIME_WITH_SYS_TIME
45 # include <sys/time.h>
46 # include <time.h>
47 #else
48 # if HAVE_SYS_TIME_H
49 # include <sys/time.h>
50 # else
51 # include <time.h>
52 # endif
53 #endif
55 #if HAVE_SYS_SOCKET_H
56 # include <sys/socket.h>
57 #endif
58 #if HAVE_NETINET_IN_H
59 # include <netinet/in.h>
60 #endif
61 #if HAVE_NETINET_IP_H
62 # include <netinet/ip.h>
63 #endif
65 #if HAVE_NETDB_H
66 # include <netdb.h> /* NI_MAXHOST */
67 #endif
69 #if HAVE_SIGNAL_H
70 # include <signal.h>
71 #endif
73 #if HAVE_SYS_TYPES_H
74 #include <sys/types.h>
75 #endif
77 #include <locale.h>
78 #include <langinfo.h>
80 #if USE_NCURSES
81 # define NCURSES_OPAQUE 1
82 /* http://newsgroups.derkeiler.com/Archive/Rec/rec.games.roguelike.development/2010-09/msg00050.html */
83 # define _X_OPEN_SOURCE_EXTENDED
85 # if HAVE_NCURSESW_NCURSES_H
86 # include <ncursesw/ncurses.h>
87 # elif HAVE_NCURSES_H
88 # include <ncurses.h>
89 # endif
91 # define OPING_GREEN 1
92 # define OPING_YELLOW 2
93 # define OPING_RED 3
94 # define OPING_GREEN_HIST 4
95 # define OPING_YELLOW_HIST 5
96 # define OPING_RED_HIST 6
98 double const threshold_green = 0.8;
99 double const threshold_yellow = 0.95;
101 static char const * const hist_symbols_utf8[] = {
102 "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" };
103 static size_t const hist_symbols_utf8_num = sizeof (hist_symbols_utf8)
104 / sizeof (hist_symbols_utf8[0]);
106 /* scancodes for 6 levels of horizontal bars, ncurses-specific */
107 /* those are not the usual constants because those are not constant */
108 static int const hist_symbols_acs[] = {
109 115, /* ACS_S9 "⎽" */
110 114, /* ACS_S7 "⎼" */
111 113, /* ACS_S5 "─" */
112 112, /* ACS_S3 "⎻" */
113 111 /* ACS_S1 "⎺" */
114 };
115 static size_t const hist_symbols_acs_num = sizeof (hist_symbols_acs)
116 / sizeof (hist_symbols_acs[0]);
118 /* use different colors without a background for scancodes */
119 static int const hist_colors_utf8[] = {
120 OPING_GREEN_HIST, OPING_YELLOW_HIST, OPING_RED_HIST };
121 static int const hist_colors_acs[] = {
122 OPING_GREEN, OPING_YELLOW, OPING_RED };
123 /* assuming that both arrays are the same size */
124 static size_t const hist_colors_num = sizeof (hist_colors_utf8)
125 / sizeof (hist_colors_utf8[0]);
126 #endif
128 /* "─" */
129 #define BOXPLOT_WHISKER_BAR (113 | A_ALTCHARSET)
130 /* "├" */
131 #define BOXPLOT_WHISKER_LEFT_END (116 | A_ALTCHARSET)
132 /* "┤" */
133 #define BOXPLOT_WHISKER_RIGHT_END (117 | A_ALTCHARSET)
134 /* Inverted */
135 #define BOXPLOT_BOX ' '
136 /* "│", inverted */
137 #define BOXPLOT_MEDIAN (120 | A_ALTCHARSET)
139 #include "oping.h"
141 #ifndef _POSIX_SAVED_IDS
142 # define _POSIX_SAVED_IDS 0
143 #endif
145 #ifndef IPTOS_MINCOST
146 # define IPTOS_MINCOST 0x02
147 #endif
149 /* Remove GNU specific __attribute__ settings when using another compiler */
150 #if !__GNUC__
151 # define __attribute__(x) /**/
152 #endif
154 typedef struct ping_context
155 {
156 char host[NI_MAXHOST];
157 char addr[NI_MAXHOST];
159 int index;
160 int req_sent;
161 int req_rcvd;
163 double latency_total;
165 #ifndef HISTORY_SIZE_MAX
166 # define HISTORY_SIZE_MAX 900
167 #endif
168 /* The last n RTTs in the order they were sent. */
169 double history_by_time[HISTORY_SIZE_MAX];
171 /* Current number of entries in the history. This is a value between 0
172 * and HISTORY_SIZE_MAX. */
173 size_t history_size;
175 /* Number "received" entries in the history, i.e. non-NAN entries. */
176 size_t history_received;
178 /* Index of the next RTT to be written to history_by_time. This wraps
179 * around to 0 once the histroty has grown to HISTORY_SIZE_MAX. */
180 size_t history_index;
182 /* The last history_size RTTs sorted by value. timed out packets (NAN
183 * entries) are sorted to the back. */
184 double history_by_value[HISTORY_SIZE_MAX];
186 /* If set to true, history_by_value has to be re-calculated. */
187 _Bool history_dirty;
189 #if USE_NCURSES
190 WINDOW *window;
191 #endif
192 } ping_context_t;
194 static double opt_interval = 1.0;
195 static double opt_timeout = PING_DEF_TIMEOUT;
196 static int opt_addrfamily = PING_DEF_AF;
197 static char *opt_srcaddr = NULL;
198 static char *opt_device = NULL;
199 static char *opt_mark = NULL;
200 static char *opt_filename = NULL;
201 static int opt_count = -1;
202 static int opt_send_ttl = 64;
203 static uint8_t opt_send_qos = 0;
204 #define OPING_DEFAULT_PERCENTILE 95.0
205 static double opt_percentile = -1.0;
206 static double opt_exit_status_threshold = 1.0;
207 #if USE_NCURSES
208 static int opt_show_graph = 1;
209 static int opt_utf8 = 0;
210 #endif
211 static char *opt_outfile = NULL;
212 static int opt_bell = 0;
214 static int host_num = 0;
215 static FILE *outfile = NULL;
217 #if USE_NCURSES
218 static WINDOW *main_win = NULL;
219 #endif
221 static void sigint_handler (int signal) /* {{{ */
222 {
223 /* Make compiler happy */
224 signal = 0;
225 /* Exit the loop */
226 opt_count = 0;
227 } /* }}} void sigint_handler */
229 static ping_context_t *context_create (void) /* {{{ */
230 {
231 ping_context_t *ret;
233 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
234 return (NULL);
236 memset (ret, '\0', sizeof (ping_context_t));
238 ret->latency_total = 0.0;
240 #if USE_NCURSES
241 ret->window = NULL;
242 #endif
244 return (ret);
245 } /* }}} ping_context_t *context_create */
247 static void context_destroy (ping_context_t *context) /* {{{ */
248 {
249 if (context == NULL)
250 return;
252 #if USE_NCURSES
253 if (context->window != NULL)
254 {
255 delwin (context->window);
256 context->window = NULL;
257 }
258 #endif
260 free (context);
261 } /* }}} void context_destroy */
263 static int compare_double (void const *arg0, void const *arg1) /* {{{ */
264 {
265 double dbl0 = *((double *) arg0);
266 double dbl1 = *((double *) arg1);
268 if (isnan (dbl0))
269 {
270 if (isnan (dbl1))
271 return 0;
272 else
273 return 1;
274 }
275 else if (isnan (dbl1))
276 return -1;
277 else if (dbl0 < dbl1)
278 return -1;
279 else if (dbl0 > dbl1)
280 return 1;
281 else
282 return 0;
283 } /* }}} int compare_double */
285 static void clean_history (ping_context_t *ctx) /* {{{ */
286 {
287 size_t i;
289 if (!ctx->history_dirty)
290 return;
292 /* Copy all values from by_time to by_value. */
293 memcpy (ctx->history_by_value, ctx->history_by_time,
294 sizeof (ctx->history_by_time));
296 /* Remove impossible values */
297 for (i = 0; i < ctx->history_size; i++)
298 if (ctx->history_by_value[i]<0)
299 ctx->history_by_value[i]=NAN;
301 /* Sort all RTTs. */
302 qsort (ctx->history_by_value, ctx->history_size, sizeof
303 (ctx->history_by_value[0]), compare_double);
305 /* Update the number of received RTTs. */
306 ctx->history_received = 0;
307 for (i = 0; i < ctx->history_size; i++)
308 if (!isnan (ctx->history_by_value[i]))
309 ctx->history_received++;
311 /* Mark as clean. */
312 ctx->history_dirty = 0;
313 } /* }}} void clean_history */
315 static double percentile_to_latency (ping_context_t *ctx, /* {{{ */
316 double percentile)
317 {
318 size_t index;
320 clean_history (ctx);
322 /* Not a single packet was received successfully. */
323 if (ctx->history_received == 0)
324 return NAN;
326 if (percentile <= 0.0)
327 index = 0;
328 else if (percentile >= 100.0)
329 index = ctx->history_received - 1;
330 else
331 {
332 index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received));
333 assert (index > 0);
334 index--;
335 }
337 return (ctx->history_by_value[index]);
338 } /* }}} double percentile_to_latency */
340 #if USE_NCURSES
341 static double latency_to_ratio (ping_context_t *ctx, /* {{{ */
342 double latency)
343 {
344 size_t low;
345 size_t high;
346 size_t index;
348 clean_history (ctx);
350 /* Not a single packet was received successfully. */
351 if (ctx->history_received == 0)
352 return NAN;
354 low = 0;
355 high = ctx->history_received - 1;
357 if (latency < ctx->history_by_value[low])
358 return 0.0;
359 else if (latency >= ctx->history_by_value[high])
360 return 100.0;
362 /* Do a binary search for the latency. This will work even when the
363 * exact latency is not in the array. If the latency is in the array
364 * multiple times, "low" will be set to the index of the last
365 * occurrence. The value at index "high" will be larger than the
366 * searched for latency (assured by the above "if" block. */
367 while ((high - low) > 1)
368 {
369 index = (high + low) / 2;
371 if (ctx->history_by_value[index] > latency)
372 high = index;
373 else
374 low = index;
375 }
377 assert (ctx->history_by_value[high] > latency);
378 assert (ctx->history_by_value[low] <= latency);
380 if (ctx->history_by_value[low] == latency)
381 index = low;
382 else
383 index = high;
385 return (((double) (index + 1)) / ((double) ctx->history_received));
386 } /* }}} double latency_to_ratio */
387 #endif
389 static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
390 {
391 if (ctx == NULL)
392 return (-1.0);
394 if (ctx->req_sent < 1)
395 return (0.0);
397 return (100.0 * (ctx->req_sent - ctx->req_rcvd)
398 / ((double) ctx->req_sent));
399 } /* }}} double context_get_packet_loss */
401 static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
402 {
403 pingobj_iter_t *iter;
404 int index;
406 if (ping == NULL)
407 return (EINVAL);
409 index = 0;
410 for (iter = ping_iterator_get (ping);
411 iter != NULL;
412 iter = ping_iterator_next (iter))
413 {
414 ping_context_t *context;
415 size_t buffer_size;
417 context = context_create ();
418 context->index = index;
420 buffer_size = sizeof (context->host);
421 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
423 buffer_size = sizeof (context->addr);
424 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
426 ping_iterator_set_context (iter, (void *) context);
428 index++;
429 }
431 return (0);
432 } /* }}} int ping_initialize_contexts */
434 static void usage_exit (const char *name, int status) /* {{{ */
435 {
436 fprintf (stderr, "Usage: %s [OPTIONS] "
437 "-f filename | host [host [host ...]]\n"
439 "\nAvailable options:\n"
440 " -4|-6 force the use of IPv4 or IPv6\n"
441 " -c count number of ICMP packets to send\n"
442 " -i interval interval with which to send ICMP packets\n"
443 " -w timeout time to wait for replies, in seconds\n"
444 " -t ttl time to live for each ICMP packet\n"
445 " -Q qos Quality of Service (QoS) of outgoing packets\n"
446 " Use \"-Q help\" for a list of valid options.\n"
447 " -I srcaddr source address\n"
448 " -D device outgoing interface name\n"
449 " -m mark mark to set on outgoing packets\n"
450 " -f filename read hosts from <filename>\n"
451 " -O filename write RTT measurements to <filename>\n"
452 #if USE_NCURSES
453 " -u / -U force / disable UTF-8 output\n"
454 " -g graph graph type to draw\n"
455 #endif
456 " -P percent Report the n'th percentile of latency\n"
457 " -Z percent Exit with non-zero exit status if more than this percentage of\n"
458 " probes timed out. (default: never)\n"
460 "\noping "PACKAGE_VERSION", http://noping.cc/\n"
461 "by Florian octo Forster <ff@octo.it>\n"
462 "for contributions see `AUTHORS'\n",
463 name);
464 exit (status);
465 } /* }}} void usage_exit */
467 __attribute__((noreturn))
468 static void usage_qos_exit (const char *arg, int status) /* {{{ */
469 {
470 if (arg != 0)
471 fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
473 fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
474 "\n"
475 " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
476 "\n"
477 " be Best Effort (BE, default PHB).\n"
478 " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
479 " (low delay, low loss, low jitter)\n"
480 " va Voice Admit (VA) DSCP (RFC 5865).\n"
481 " (capacity-admitted traffic)\n"
482 " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
483 " For example: \"af12\" (class 1, precedence 2)\n"
484 " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
485 " For example: \"cs1\" (priority traffic)\n"
486 "\n"
487 " Type of Service (IPv4, RFC 1349, obsolete)\n"
488 "\n"
489 " lowdelay (%#04x) minimize delay\n"
490 " throughput (%#04x) maximize throughput\n"
491 " reliability (%#04x) maximize reliability\n"
492 " mincost (%#04x) minimize monetary cost\n"
493 "\n"
494 " Specify manually\n"
495 "\n"
496 " 0x00 - 0xff Hexadecimal numeric specification.\n"
497 " 0 - 255 Decimal numeric specification.\n"
498 "\n",
499 (unsigned int) IPTOS_LOWDELAY,
500 (unsigned int) IPTOS_THROUGHPUT,
501 (unsigned int) IPTOS_RELIABILITY,
502 (unsigned int) IPTOS_MINCOST);
504 exit (status);
505 } /* }}} void usage_qos_exit */
507 static int set_opt_send_qos (const char *opt) /* {{{ */
508 {
509 if (opt == NULL)
510 return (EINVAL);
512 if (strcasecmp ("help", opt) == 0)
513 usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
514 /* DiffServ (RFC 2474): */
515 /* - Best effort (BE) */
516 else if (strcasecmp ("be", opt) == 0)
517 opt_send_qos = 0;
518 /* - Expedited Forwarding (EF, RFC 3246) */
519 else if (strcasecmp ("ef", opt) == 0)
520 opt_send_qos = 0xB8; /* == 0x2E << 2 */
521 /* - Voice Admit (VA, RFC 5865) */
522 else if (strcasecmp ("va", opt) == 0)
523 opt_send_qos = 0xB0; /* == 0x2D << 2 */
524 /* - Assured Forwarding (AF, RFC 2597) */
525 else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
526 && (strlen (opt) == 4))
527 {
528 uint8_t dscp;
529 uint8_t class = 0;
530 uint8_t prec = 0;
532 /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
533 if (opt[2] == '1')
534 class = 1;
535 else if (opt[2] == '2')
536 class = 2;
537 else if (opt[2] == '3')
538 class = 3;
539 else if (opt[2] == '4')
540 class = 4;
541 else
542 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
544 /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
545 if (opt[3] == '1')
546 prec = 1;
547 else if (opt[3] == '2')
548 prec = 2;
549 else if (opt[3] == '3')
550 prec = 3;
551 else
552 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
554 dscp = (8 * class) + (2 * prec);
555 /* The lower two bits are used for Explicit Congestion Notification (ECN) */
556 opt_send_qos = dscp << 2;
557 }
558 /* - Class Selector (CS) */
559 else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
560 && (strlen (opt) == 3))
561 {
562 uint8_t class;
564 if ((opt[2] < '0') || (opt[2] > '7'))
565 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
567 /* Not exactly legal by the C standard, but I don't know of any
568 * system not supporting this hack. */
569 class = ((uint8_t) opt[2]) - ((uint8_t) '0');
570 opt_send_qos = class << 5;
571 }
572 /* Type of Service (RFC 1349) */
573 else if (strcasecmp ("lowdelay", opt) == 0)
574 opt_send_qos = IPTOS_LOWDELAY;
575 else if (strcasecmp ("throughput", opt) == 0)
576 opt_send_qos = IPTOS_THROUGHPUT;
577 else if (strcasecmp ("reliability", opt) == 0)
578 opt_send_qos = IPTOS_RELIABILITY;
579 else if (strcasecmp ("mincost", opt) == 0)
580 opt_send_qos = IPTOS_MINCOST;
581 /* Numeric value */
582 else
583 {
584 unsigned long value;
585 char *endptr;
587 errno = 0;
588 endptr = NULL;
589 value = strtoul (opt, &endptr, /* base = */ 0);
590 if ((errno != 0) || (endptr == opt)
591 || (endptr == NULL) || (*endptr != 0)
592 || (value > 0xff))
593 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
595 opt_send_qos = (uint8_t) value;
596 }
598 return (0);
599 } /* }}} int set_opt_send_qos */
601 static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
602 {
603 uint8_t dscp;
604 uint8_t ecn;
605 char *dscp_str;
606 char *ecn_str;
608 dscp = qos >> 2;
609 ecn = qos & 0x03;
611 switch (dscp)
612 {
613 case 0x00: dscp_str = "be"; break;
614 case 0x2e: dscp_str = "ef"; break;
615 case 0x2d: dscp_str = "va"; break;
616 case 0x0a: dscp_str = "af11"; break;
617 case 0x0c: dscp_str = "af12"; break;
618 case 0x0e: dscp_str = "af13"; break;
619 case 0x12: dscp_str = "af21"; break;
620 case 0x14: dscp_str = "af22"; break;
621 case 0x16: dscp_str = "af23"; break;
622 case 0x1a: dscp_str = "af31"; break;
623 case 0x1c: dscp_str = "af32"; break;
624 case 0x1e: dscp_str = "af33"; break;
625 case 0x22: dscp_str = "af41"; break;
626 case 0x24: dscp_str = "af42"; break;
627 case 0x26: dscp_str = "af43"; break;
628 case 0x08: dscp_str = "cs1"; break;
629 case 0x10: dscp_str = "cs2"; break;
630 case 0x18: dscp_str = "cs3"; break;
631 case 0x20: dscp_str = "cs4"; break;
632 case 0x28: dscp_str = "cs5"; break;
633 case 0x30: dscp_str = "cs6"; break;
634 case 0x38: dscp_str = "cs7"; break;
635 default: dscp_str = NULL;
636 }
638 switch (ecn)
639 {
640 case 0x01: ecn_str = ",ecn(1)"; break;
641 case 0x02: ecn_str = ",ecn(0)"; break;
642 case 0x03: ecn_str = ",ce"; break;
643 default: ecn_str = "";
644 }
646 if (dscp_str == NULL)
647 snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
648 else
649 snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
650 buffer[buffer_size - 1] = 0;
652 return (buffer);
653 } /* }}} char *format_qos */
655 static int read_options (int argc, char **argv) /* {{{ */
656 {
657 int optchar;
659 while (1)
660 {
661 optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:O:P:m:w:b"
662 #if USE_NCURSES
663 "uUg:"
664 #endif
665 );
667 if (optchar == -1)
668 break;
670 switch (optchar)
671 {
672 case '4':
673 case '6':
674 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
675 break;
677 case 'c':
678 {
679 int new_count;
680 new_count = atoi (optarg);
681 if (new_count > 0)
682 {
683 opt_count = new_count;
685 if ((opt_percentile < 0.0) && (opt_count < 20))
686 opt_percentile = 100.0 * (opt_count - 1) / opt_count;
687 }
688 else
689 fprintf(stderr, "Ignoring invalid count: %s\n",
690 optarg);
691 }
692 break;
694 case 'f':
695 {
696 if (opt_filename != NULL)
697 free (opt_filename);
698 opt_filename = strdup (optarg);
699 }
700 break;
702 case 'i':
703 {
704 double new_interval;
705 new_interval = atof (optarg);
706 if (new_interval < 0.001)
707 fprintf (stderr, "Ignoring invalid interval: %s\n",
708 optarg);
709 else
710 opt_interval = new_interval;
711 }
712 break;
714 case 'w':
715 {
716 char *endp = NULL;
717 double t = strtod (optarg, &endp);
718 if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0))
719 opt_timeout = t;
720 else
721 fprintf (stderr, "Ignoring invalid timeout: %s\n",
722 optarg);
723 }
724 break;
726 case 'I':
727 {
728 if (opt_srcaddr != NULL)
729 free (opt_srcaddr);
730 opt_srcaddr = strdup (optarg);
731 }
732 break;
734 case 'D':
735 opt_device = optarg;
736 break;
738 case 'm':
739 opt_mark = optarg;
740 break;
742 case 't':
743 {
744 int new_send_ttl;
745 new_send_ttl = atoi (optarg);
746 if ((new_send_ttl > 0) && (new_send_ttl < 256))
747 opt_send_ttl = new_send_ttl;
748 else
749 fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
750 optarg);
751 break;
752 }
754 case 'Q':
755 set_opt_send_qos (optarg);
756 break;
758 case 'O':
759 {
760 free (opt_outfile);
761 opt_outfile = strdup (optarg);
762 }
763 break;
765 case 'P':
766 {
767 double new_percentile;
768 new_percentile = atof (optarg);
769 if (isnan (new_percentile)
770 || (new_percentile < 0.1)
771 || (new_percentile > 100.0))
772 fprintf (stderr, "Ignoring invalid percentile: %s\n",
773 optarg);
774 else
775 opt_percentile = new_percentile;
776 }
777 break;
779 #if USE_NCURSES
780 case 'g':
781 if (strcasecmp ("none", optarg) == 0)
782 opt_show_graph = 0;
783 else if (strcasecmp ("prettyping", optarg) == 0)
784 opt_show_graph = 1;
785 else if (strcasecmp ("histogram", optarg) == 0)
786 opt_show_graph = 2;
787 else if (strcasecmp ("boxplot", optarg) == 0)
788 opt_show_graph = 3;
789 else
790 fprintf (stderr, "Unknown graph option: %s\n", optarg);
791 break;
793 case 'u':
794 opt_utf8 = 2;
795 break;
796 case 'U':
797 opt_utf8 = 1;
798 break;
799 #endif
800 case 'b':
801 opt_bell = 1;
802 break;
804 case 'Z':
805 {
806 char *endptr = NULL;
807 double tmp;
809 errno = 0;
810 tmp = strtod (optarg, &endptr);
811 if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0))
812 {
813 fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg);
814 fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n");
815 }
816 else
817 opt_exit_status_threshold = tmp / 100.0;
819 break;
820 }
822 case 'h':
823 usage_exit (argv[0], 0);
824 break;
826 default:
827 usage_exit (argv[0], 1);
828 }
829 }
831 if (opt_percentile <= 0.0)
832 opt_percentile = OPING_DEFAULT_PERCENTILE;
834 return (optind);
835 } /* }}} read_options */
837 static void time_normalize (struct timespec *ts) /* {{{ */
838 {
839 while (ts->tv_nsec < 0)
840 {
841 if (ts->tv_sec == 0)
842 {
843 ts->tv_nsec = 0;
844 return;
845 }
847 ts->tv_sec -= 1;
848 ts->tv_nsec += 1000000000;
849 }
851 while (ts->tv_nsec >= 1000000000)
852 {
853 ts->tv_sec += 1;
854 ts->tv_nsec -= 1000000000;
855 }
856 } /* }}} void time_normalize */
858 static void time_calc (struct timespec *ts_dest, /* {{{ */
859 const struct timespec *ts_int,
860 const struct timeval *tv_begin,
861 const struct timeval *tv_end)
862 {
863 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
864 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
865 time_normalize (ts_dest);
867 /* Assure that `(begin + interval) > end'.
868 * This may seem overly complicated, but `tv_sec' is of type `time_t'
869 * which may be `unsigned. *sigh* */
870 if ((tv_end->tv_sec > ts_dest->tv_sec)
871 || ((tv_end->tv_sec == ts_dest->tv_sec)
872 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
873 {
874 ts_dest->tv_sec = 0;
875 ts_dest->tv_nsec = 0;
876 return;
877 }
879 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
880 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
881 time_normalize (ts_dest);
882 } /* }}} void time_calc */
884 #if USE_NCURSES
885 static _Bool has_utf8() /* {{{ */
886 {
887 # if HAVE_NCURSESW_NCURSES_H
888 if (!opt_utf8)
889 {
890 /* Automatically determine */
891 if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
892 opt_utf8 = 2;
893 else
894 opt_utf8 = 1;
895 }
896 return ((_Bool) (opt_utf8 - 1));
897 # else
898 return (0);
899 # endif
900 } /* }}} _Bool has_utf8 */
902 static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */
903 {
904 uint32_t *counters;
905 double *ratios;
906 size_t i;
907 size_t x_max;
908 size_t x;
910 clean_history (ctx);
912 if (ctx->history_received == 0)
913 return (ENOENT);
915 x_max = (size_t) getmaxx (ctx->window);
916 if (x_max <= 8)
917 return (EINVAL);
918 x_max -= 4;
920 counters = calloc (x_max, sizeof (*counters));
921 ratios = calloc (x_max, sizeof (*ratios));
923 /* Bucketize */
924 for (i = 0; i < ctx->history_received; i++)
925 {
926 double latency = ctx->history_by_value[i] / 1000.0;
927 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
929 if (index >= x_max)
930 index = x_max - 1;
932 counters[index]++;
933 }
935 /* Sum and calc ratios */
936 ratios[0] = ((double) counters[0]) / ((double) ctx->history_received);
937 for (x = 1; x < x_max; x++)
938 {
939 counters[x] += counters[x - 1];
940 ratios[x] = ((double) counters[x]) / ((double) ctx->history_received);
941 }
943 for (x = 0; x < x_max; x++)
944 {
945 int symbol = ' ';
946 _Bool reverse = 0;
948 if (x == 0)
949 {
950 if (ratios[x] >= 0.5)
951 {
952 symbol = BOXPLOT_MEDIAN;
953 reverse = 1;
954 }
955 else if (ratios[x] > 0.25)
956 {
957 symbol = BOXPLOT_BOX;
958 reverse = 1;
959 }
960 else if (ratios[x] > 0.025)
961 symbol = BOXPLOT_WHISKER_BAR;
962 else
963 symbol = ' '; /* NOP */
964 }
965 else /* (x != 0) */
966 {
967 if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5))
968 {
969 symbol = BOXPLOT_MEDIAN;
970 reverse = 1;
971 }
972 else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75))
973 || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75)))
974 {
975 symbol = BOXPLOT_BOX;
976 reverse = 1;
977 }
978 else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025))
979 {
980 if (ratios[x - 1] < 0.025)
981 symbol = BOXPLOT_WHISKER_LEFT_END;
982 else
983 symbol = BOXPLOT_WHISKER_BAR;
984 }
985 else if ((ratios[x] > .5) && (ratios[x] < 0.975))
986 {
987 symbol = BOXPLOT_WHISKER_BAR;
988 }
989 else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975))
990 symbol = BOXPLOT_WHISKER_RIGHT_END;
991 }
993 if (reverse)
994 wattron (ctx->window, A_REVERSE);
995 mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
996 // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
997 if (reverse)
998 wattroff (ctx->window, A_REVERSE);
999 }
1001 free (counters);
1002 free (ratios);
1003 return (0);
1004 } /* }}} int update_graph_boxplot */
1006 static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */
1007 double latency)
1008 {
1009 size_t x;
1010 size_t x_max;
1011 size_t history_offset;
1013 x_max = (size_t) getmaxx (ctx->window);
1014 if (x_max <= 4)
1015 return (EINVAL);
1016 x_max -= 4;
1018 /* Determine the first index in the history we need to draw
1019 * the graph. */
1020 history_offset = 0;
1021 if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */
1022 {
1023 if (ctx->history_index > x_max)
1024 history_offset = ctx->history_index - x_max;
1025 else /* wrap around */
1026 history_offset = ctx->history_index + ctx->history_size - x_max;
1027 }
1028 else /* window is larger than history */
1029 {
1030 if (ctx->history_index != ctx->history_size) /* no longer growing. */
1031 history_offset = ctx->history_index;
1032 else /* start-up */
1033 history_offset = 0;
1034 }
1036 for (x = 0; x < x_max; x++)
1037 {
1038 size_t index;
1039 double latency;
1041 int color = OPING_RED;
1042 char const *symbol = "!";
1043 int symbolc = '!';
1045 if (x >= ctx->history_size)
1046 {
1047 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1048 continue;
1049 }
1051 index = (history_offset + x) % ctx->history_size;
1052 latency = ctx->history_by_time[index];
1054 if (latency < 0) {
1055 continue;
1056 }
1058 if (latency >= 0.0)
1059 {
1060 double ratio;
1062 size_t symbols_num = hist_symbols_acs_num;
1063 size_t colors_num = 1;
1065 size_t index_symbols;
1066 size_t index_colors;
1067 size_t intensity;
1069 /* latency is in milliseconds, opt_interval is in seconds. */
1070 ratio = (latency * 0.001) / opt_interval;
1071 if (ratio > 1) {
1072 ratio = 1.0;
1073 }
1075 if (has_utf8 ())
1076 symbols_num = hist_symbols_utf8_num;
1078 if (has_colors () == TRUE)
1079 colors_num = hist_colors_num;
1081 intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
1082 if (intensity >= (symbols_num * colors_num))
1083 intensity = (symbols_num * colors_num) - 1;
1085 index_symbols = intensity % symbols_num;
1086 assert (index_symbols < symbols_num);
1088 index_colors = intensity / symbols_num;
1089 assert (index_colors < colors_num);
1091 if (has_utf8())
1092 {
1093 color = hist_colors_utf8[index_colors];
1094 symbol = hist_symbols_utf8[index_symbols];
1095 }
1096 else
1097 {
1098 color = hist_colors_acs[index_colors];
1099 symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
1100 }
1101 }
1102 else /* if (!(latency >= 0.0)) */
1103 wattron (ctx->window, A_BOLD);
1105 if (has_colors () == TRUE)
1106 wattron (ctx->window, COLOR_PAIR(color));
1108 if (has_utf8())
1109 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol);
1110 else
1111 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc);
1113 if (has_colors () == TRUE)
1114 wattroff (ctx->window, COLOR_PAIR(color));
1116 /* Use negation here to handle NaN correctly. */
1117 if (!(latency >= 0.0))
1118 wattroff (ctx->window, A_BOLD);
1119 } /* for (x) */
1121 return (0);
1122 } /* }}} int update_graph_prettyping */
1124 static int update_graph_histogram (ping_context_t *ctx) /* {{{ */
1125 {
1126 uint32_t *counters;
1127 uint32_t *accumulated;
1128 uint32_t max;
1129 size_t i;
1130 size_t x_max;
1131 size_t x;
1133 size_t symbols_num = hist_symbols_acs_num;
1135 clean_history (ctx);
1137 if (ctx->history_received == 0)
1138 return (ENOENT);
1140 if (has_utf8 ())
1141 symbols_num = hist_symbols_utf8_num;
1143 x_max = (size_t) getmaxx (ctx->window);
1144 if (x_max <= 4)
1145 return (EINVAL);
1146 x_max -= 4;
1148 counters = calloc (x_max, sizeof (*counters));
1149 accumulated = calloc (x_max, sizeof (*accumulated));
1151 /* Bucketize */
1152 max = 0;
1153 for (i = 0; i < ctx->history_received; i++)
1154 {
1155 double latency = ctx->history_by_value[i] / 1000.0;
1156 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
1158 if (index >= x_max)
1159 index = x_max - 1;
1161 counters[index]++;
1162 if (max < counters[index])
1163 max = counters[index];
1164 }
1166 /* Sum */
1167 accumulated[0] = counters[0];
1168 for (x = 1; x < x_max; x++)
1169 accumulated[x] = counters[x] + accumulated[x - 1];
1171 /* Calculate ratios */
1172 for (x = 0; x < x_max; x++)
1173 {
1174 double height = ((double) counters[x]) / ((double) max);
1175 double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received);
1176 double ratio_prev = 0.0;
1177 size_t index;
1178 int color = 0;
1180 index = (size_t) (height * ((double) symbols_num));
1181 if (index >= symbols_num)
1182 index = symbols_num - 1;
1184 if (x > 0)
1185 ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received);
1187 if (has_colors () == TRUE)
1188 {
1189 if ((ratio_this <= threshold_green)
1190 || ((ratio_prev < threshold_green)
1191 && (ratio_this > threshold_green)))
1192 color = OPING_GREEN;
1193 else if ((ratio_this <= threshold_yellow)
1194 || ((ratio_prev < threshold_yellow)
1195 && (ratio_this > threshold_yellow)))
1196 color = OPING_YELLOW;
1197 else
1198 color = OPING_RED;
1200 wattron (ctx->window, COLOR_PAIR(color));
1201 }
1203 if (counters[x] == 0)
1204 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1205 else if (has_utf8 ())
1206 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2,
1207 hist_symbols_utf8[index]);
1208 else
1209 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2,
1210 hist_symbols_acs[index] | A_ALTCHARSET);
1212 if (has_colors () == TRUE)
1213 wattroff (ctx->window, COLOR_PAIR(color));
1215 }
1217 free (accumulated);
1218 return (0);
1219 } /* }}} int update_graph_histogram */
1221 static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
1222 {
1223 double latency = -1.0;
1224 size_t buffer_len = sizeof (latency);
1226 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1227 &latency, &buffer_len);
1229 if ((ctx == NULL) || (ctx->window == NULL))
1230 return (EINVAL);
1232 /* werase (ctx->window); */
1234 box (ctx->window, 0, 0);
1235 wattron (ctx->window, A_BOLD);
1236 mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
1237 " %s ", ctx->host);
1238 wattroff (ctx->window, A_BOLD);
1239 wprintw (ctx->window, "ping statistics ");
1240 mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
1241 "%i packets transmitted, %i received, %.2f%% packet "
1242 "loss, time %.1fms",
1243 ctx->req_sent, ctx->req_rcvd,
1244 context_get_packet_loss (ctx),
1245 ctx->latency_total);
1246 if (ctx->req_rcvd != 0)
1247 {
1248 double min;
1249 double median;
1250 double max;
1251 double percentile;
1253 min = percentile_to_latency (ctx, 0.0);
1254 median = percentile_to_latency (ctx, 50.0);
1255 max = percentile_to_latency (ctx, 100.0);
1256 percentile = percentile_to_latency (ctx, opt_percentile);
1258 mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
1259 "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ",
1260 min, median, opt_percentile, percentile, max);
1261 }
1263 if (opt_show_graph == 1)
1264 update_graph_prettyping (ctx, latency);
1265 else if (opt_show_graph == 2)
1266 update_graph_histogram (ctx);
1267 else if (opt_show_graph == 3)
1268 update_graph_boxplot (ctx);
1270 wrefresh (ctx->window);
1272 return (0);
1273 } /* }}} int update_stats_from_context */
1275 static int on_resize (pingobj_t *ping) /* {{{ */
1276 {
1277 pingobj_iter_t *iter;
1278 int width = 0;
1279 int height = 0;
1280 int main_win_height;
1281 int box_height = (opt_show_graph == 0) ? 4 : 5;
1283 getmaxyx (stdscr, height, width);
1284 if ((height < 1) || (width < 1))
1285 return (EINVAL);
1287 main_win_height = height - (box_height * host_num);
1288 wresize (main_win, main_win_height, /* width = */ width);
1289 /* Allow scrolling */
1290 scrollok (main_win, TRUE);
1291 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1292 /* Allow hardware accelerated scrolling. */
1293 idlok (main_win, TRUE);
1294 wrefresh (main_win);
1296 for (iter = ping_iterator_get (ping);
1297 iter != NULL;
1298 iter = ping_iterator_next (iter))
1299 {
1300 ping_context_t *context;
1302 context = ping_iterator_get_context (iter);
1303 if (context == NULL)
1304 continue;
1306 if (context->window != NULL)
1307 {
1308 delwin (context->window);
1309 context->window = NULL;
1310 }
1311 context->window = newwin (/* height = */ box_height,
1312 /* width = */ width,
1313 /* y = */ main_win_height + (box_height * context->index),
1314 /* x = */ 0);
1315 }
1317 return (0);
1318 } /* }}} */
1320 static int check_resize (pingobj_t *ping) /* {{{ */
1321 {
1322 int need_resize = 0;
1324 while (42)
1325 {
1326 int key = wgetch (stdscr);
1327 if (key == ERR)
1328 break;
1329 else if (key == KEY_RESIZE)
1330 need_resize = 1;
1331 else if (key == 'g')
1332 {
1333 if (opt_show_graph == 3)
1334 opt_show_graph = 1;
1335 else if (opt_show_graph > 0)
1336 opt_show_graph++;
1337 }
1338 }
1340 if (need_resize)
1341 return (on_resize (ping));
1342 else
1343 return (0);
1344 } /* }}} int check_resize */
1346 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1347 {
1348 pingobj_iter_t *iter;
1349 int width = 0;
1350 int height = 0;
1351 int main_win_height;
1352 int box_height = (opt_show_graph == 0) ? 4 : 5;
1354 initscr ();
1355 cbreak ();
1356 noecho ();
1357 nodelay (stdscr, TRUE);
1359 getmaxyx (stdscr, height, width);
1360 if ((height < 1) || (width < 1))
1361 return (EINVAL);
1363 if (has_colors () == TRUE)
1364 {
1365 start_color ();
1366 init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
1367 init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
1368 init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
1369 init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
1370 init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
1371 init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
1372 }
1374 main_win_height = height - (box_height * host_num);
1375 main_win = newwin (/* height = */ main_win_height,
1376 /* width = */ width,
1377 /* y = */ 0, /* x = */ 0);
1378 /* Allow scrolling */
1379 scrollok (main_win, TRUE);
1380 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1381 /* Allow hardware accelerated scrolling. */
1382 idlok (main_win, TRUE);
1383 wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
1384 wrefresh (main_win);
1386 for (iter = ping_iterator_get (ping);
1387 iter != NULL;
1388 iter = ping_iterator_next (iter))
1389 {
1390 ping_context_t *context;
1392 context = ping_iterator_get_context (iter);
1393 if (context == NULL)
1394 continue;
1396 if (context->window != NULL)
1397 {
1398 delwin (context->window);
1399 context->window = NULL;
1400 }
1401 context->window = newwin (/* height = */ box_height,
1402 /* width = */ width,
1403 /* y = */ main_win_height + (box_height * context->index),
1404 /* x = */ 0);
1405 }
1408 /* Don't know what good this does exactly, but without this code
1409 * "check_resize" will be called right after startup and *somehow*
1410 * this leads to display errors. If we purge all initial characters
1411 * here, the problem goes away. "wgetch" is non-blocking due to
1412 * "nodelay" (see above). */
1413 while (wgetch (stdscr) != ERR)
1414 {
1415 /* eat up characters */;
1416 }
1418 return (0);
1419 } /* }}} int pre_loop_hook */
1421 static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
1422 {
1423 return (check_resize (ping));
1424 } /* }}} int pre_sleep_hook */
1426 static int post_sleep_hook (pingobj_t *ping) /* {{{ */
1427 {
1428 return (check_resize (ping));
1429 } /* }}} int pre_sleep_hook */
1430 #else /* if !USE_NCURSES */
1431 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1432 {
1433 pingobj_iter_t *iter;
1435 for (iter = ping_iterator_get (ping);
1436 iter != NULL;
1437 iter = ping_iterator_next (iter))
1438 {
1439 ping_context_t *ctx;
1440 size_t buffer_size;
1442 ctx = ping_iterator_get_context (iter);
1443 if (ctx == NULL)
1444 continue;
1446 buffer_size = 0;
1447 ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
1449 printf ("PING %s (%s) %zu bytes of data.\n",
1450 ctx->host, ctx->addr, buffer_size);
1451 }
1453 return (0);
1454 } /* }}} int pre_loop_hook */
1456 static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1457 {
1458 fflush (stdout);
1460 return (0);
1461 } /* }}} int pre_sleep_hook */
1463 static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1464 {
1465 return (0);
1466 } /* }}} int post_sleep_hook */
1467 #endif
1469 static void update_context (ping_context_t *ctx, double latency) /* {{{ */
1470 {
1471 ctx->req_sent++;
1473 if (latency > 0.0)
1474 {
1475 ctx->req_rcvd++;
1476 ctx->latency_total += latency;
1477 }
1478 else
1479 {
1480 latency = NAN;
1481 }
1483 ctx->history_by_time[ctx->history_index] = latency;
1485 ctx->history_dirty = 1;
1487 /* Update index and size. */
1488 ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX;
1489 if (ctx->history_size < HISTORY_SIZE_MAX)
1490 ctx->history_size++;
1491 } /* }}} void update_context */
1493 static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
1494 __attribute__((unused)) int index)
1495 {
1496 double latency;
1497 unsigned int sequence;
1498 int recv_ttl;
1499 uint8_t recv_qos;
1500 char recv_qos_str[16];
1501 size_t buffer_len;
1502 size_t data_len;
1503 ping_context_t *context;
1505 latency = -1.0;
1506 buffer_len = sizeof (latency);
1507 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1508 &latency, &buffer_len);
1510 sequence = 0;
1511 buffer_len = sizeof (sequence);
1512 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1513 &sequence, &buffer_len);
1515 recv_ttl = -1;
1516 buffer_len = sizeof (recv_ttl);
1517 ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
1518 &recv_ttl, &buffer_len);
1520 recv_qos = 0;
1521 buffer_len = sizeof (recv_qos);
1522 ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
1523 &recv_qos, &buffer_len);
1525 data_len = 0;
1526 ping_iterator_get_info (iter, PING_INFO_DATA,
1527 NULL, &data_len);
1529 context = (ping_context_t *) ping_iterator_get_context (iter);
1531 #if USE_NCURSES
1532 # define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
1533 #else
1534 # define HOST_PRINTF(...) printf(__VA_ARGS__)
1535 #endif
1537 update_context (context, latency);
1539 if (latency > 0.0)
1540 {
1541 #if USE_NCURSES
1542 if (has_colors () == TRUE)
1543 {
1544 double ratio;
1545 int color = OPING_GREEN;
1547 ratio = latency_to_ratio (context, latency);
1548 if (ratio < threshold_green)
1549 color = OPING_GREEN;
1550 else if (ratio < threshold_yellow)
1551 color = OPING_YELLOW;
1552 else
1553 color = OPING_RED;
1555 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1556 data_len, context->host, context->addr,
1557 sequence, recv_ttl,
1558 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1559 if ((recv_qos != 0) || (opt_send_qos != 0))
1560 {
1561 HOST_PRINTF ("qos=%s ",
1562 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1563 }
1564 HOST_PRINTF ("time=");
1565 wattron (main_win, COLOR_PAIR(color));
1566 HOST_PRINTF ("%.2f", latency);
1567 wattroff (main_win, COLOR_PAIR(color));
1568 HOST_PRINTF (" ms\n");
1569 }
1570 else
1571 {
1572 #endif
1573 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1574 data_len,
1575 context->host, context->addr,
1576 sequence, recv_ttl);
1577 if ((recv_qos != 0) || (opt_send_qos != 0))
1578 {
1579 HOST_PRINTF ("qos=%s ",
1580 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1581 }
1582 HOST_PRINTF ("time=%.2f ms\n", latency);
1583 #if USE_NCURSES
1584 }
1585 #endif
1586 if (opt_bell) {
1587 #if USE_NCURSES
1588 beep();
1589 #else
1590 HOST_PRINTF ("\a");
1591 #endif
1592 }
1593 }
1594 else /* if (!(latency > 0.0)) */
1595 {
1596 #if USE_NCURSES
1597 if (has_colors () == TRUE)
1598 {
1599 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
1600 context->host, context->addr,
1601 sequence);
1602 wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1603 HOST_PRINTF ("timeout");
1604 wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1605 HOST_PRINTF ("\n");
1606 }
1607 else
1608 {
1609 #endif
1610 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
1611 context->host, context->addr,
1612 sequence);
1613 #if USE_NCURSES
1614 }
1615 #endif
1616 }
1618 if (outfile != NULL)
1619 {
1620 struct timespec ts = { 0, 0 };
1622 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
1623 {
1624 double t = ((double) ts.tv_sec) + (((double) ts.tv_nsec) / 1000000000.0);
1626 if ((sequence % 32) == 0)
1627 fprintf (outfile, "#time,host,latency[ms]\n");
1629 fprintf (outfile, "%.3f,\"%s\",%.2f\n", t, context->host, latency);
1630 }
1631 }
1633 #if USE_NCURSES
1634 update_stats_from_context (context, iter);
1635 wrefresh (main_win);
1636 #endif
1637 } /* }}} void update_host_hook */
1639 /* Prints statistics for each host, cleans up the contexts and returns the
1640 * number of hosts which failed to return more than the fraction
1641 * opt_exit_status_threshold of pings. */
1642 static int post_loop_hook (pingobj_t *ping) /* {{{ */
1643 {
1644 pingobj_iter_t *iter;
1645 int failure_count = 0;
1647 #if USE_NCURSES
1648 endwin ();
1649 #endif
1651 for (iter = ping_iterator_get (ping);
1652 iter != NULL;
1653 iter = ping_iterator_next (iter))
1654 {
1655 ping_context_t *context;
1657 context = ping_iterator_get_context (iter);
1659 printf ("\n--- %s ping statistics ---\n"
1660 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
1661 context->host, context->req_sent, context->req_rcvd,
1662 context_get_packet_loss (context),
1663 context->latency_total);
1665 {
1666 double pct_failed = 1.0 - (((double) context->req_rcvd)
1667 / ((double) context->req_sent));
1668 if (pct_failed > opt_exit_status_threshold)
1669 failure_count++;
1670 }
1672 if (context->req_rcvd != 0)
1673 {
1674 double min;
1675 double median;
1676 double max;
1677 double percentile;
1679 min = percentile_to_latency (context, 0.0);
1680 median = percentile_to_latency (context, 50.0);
1681 max = percentile_to_latency (context, 100.0);
1682 percentile = percentile_to_latency (context, opt_percentile);
1684 printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n",
1685 min, median, opt_percentile, percentile, max);
1686 }
1688 ping_iterator_set_context (iter, NULL);
1689 context_destroy (context);
1690 }
1692 return (failure_count);
1693 } /* }}} int post_loop_hook */
1695 int main (int argc, char **argv) /* {{{ */
1696 {
1697 pingobj_t *ping;
1698 pingobj_iter_t *iter;
1700 struct sigaction sigint_action;
1702 struct timeval tv_begin;
1703 struct timeval tv_end;
1704 struct timespec ts_wait;
1705 struct timespec ts_int;
1707 int optind;
1708 int i;
1709 int status;
1710 #if _POSIX_SAVED_IDS
1711 uid_t saved_set_uid;
1713 /* Save the old effective user id */
1714 saved_set_uid = geteuid ();
1715 /* Set the effective user ID to the real user ID without changing the
1716 * saved set-user ID */
1717 status = seteuid (getuid ());
1718 if (status != 0)
1719 {
1720 fprintf (stderr, "Temporarily dropping privileges "
1721 "failed: %s\n", strerror (errno));
1722 exit (EXIT_FAILURE);
1723 }
1724 #endif
1726 setlocale(LC_ALL, "");
1727 optind = read_options (argc, argv);
1729 #if !_POSIX_SAVED_IDS
1730 /* Cannot temporarily drop privileges -> reject every file but "-". */
1731 if ((opt_filename != NULL)
1732 && (strcmp ("-", opt_filename) != 0)
1733 && (getuid () != geteuid ()))
1734 {
1735 fprintf (stderr, "Your real and effective user IDs don't "
1736 "match. Reading from a file (option '-f')\n"
1737 "is therefore too risky. You can still read "
1738 "from STDIN using '-f -' if you like.\n"
1739 "Sorry.\n");
1740 exit (EXIT_FAILURE);
1741 }
1742 #endif
1744 if ((optind >= argc) && (opt_filename == NULL)) {
1745 usage_exit (argv[0], 1);
1746 }
1748 if ((ping = ping_construct ()) == NULL)
1749 {
1750 fprintf (stderr, "ping_construct failed\n");
1751 return (1);
1752 }
1754 if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
1755 {
1756 fprintf (stderr, "Setting TTL to %i failed: %s\n",
1757 opt_send_ttl, ping_get_error (ping));
1758 }
1760 if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
1761 {
1762 fprintf (stderr, "Setting TOS to %i failed: %s\n",
1763 opt_send_qos, ping_get_error (ping));
1764 }
1766 {
1767 double temp_sec;
1768 double temp_nsec;
1770 temp_nsec = modf (opt_interval, &temp_sec);
1771 ts_int.tv_sec = (time_t) temp_sec;
1772 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
1774 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
1775 }
1777 if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0)
1778 {
1779 fprintf (stderr, "Setting timeout failed: %s\n",
1780 ping_get_error (ping));
1781 }
1783 if (opt_addrfamily != PING_DEF_AF)
1784 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
1786 if (opt_srcaddr != NULL)
1787 {
1788 if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
1789 {
1790 fprintf (stderr, "Setting source address failed: %s\n",
1791 ping_get_error (ping));
1792 }
1793 }
1795 if (opt_device != NULL)
1796 {
1797 if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
1798 {
1799 fprintf (stderr, "Setting device failed: %s\n",
1800 ping_get_error (ping));
1801 }
1802 }
1804 if (opt_mark != NULL)
1805 {
1806 char *endp = NULL;
1807 int mark = (int) strtol (opt_mark, &endp, /* base = */ 0);
1808 if ((opt_mark[0] != 0) && (endp != NULL) && (*endp == 0))
1809 {
1810 if (ping_setopt(ping, PING_OPT_MARK, (void*)(&mark)) != 0)
1811 {
1812 fprintf (stderr, "Setting mark failed: %s\n",
1813 ping_get_error (ping));
1814 }
1815 }
1816 else
1817 {
1818 fprintf(stderr, "Ignoring invalid mark: %s\n", optarg);
1819 }
1820 }
1822 if (opt_filename != NULL)
1823 {
1824 FILE *infile;
1825 char line[256];
1826 char host[256];
1828 if (strcmp (opt_filename, "-") == 0)
1829 /* Open STDIN */
1830 infile = fdopen(0, "r");
1831 else
1832 infile = fopen(opt_filename, "r");
1834 if (infile == NULL)
1835 {
1836 fprintf (stderr, "Opening %s failed: %s\n",
1837 (strcmp (opt_filename, "-") == 0)
1838 ? "STDIN" : opt_filename,
1839 strerror(errno));
1840 return (1);
1841 }
1843 #if _POSIX_SAVED_IDS
1844 /* Regain privileges */
1845 status = seteuid (saved_set_uid);
1846 if (status != 0)
1847 {
1848 fprintf (stderr, "Temporarily re-gaining privileges "
1849 "failed: %s\n", strerror (errno));
1850 exit (EXIT_FAILURE);
1851 }
1852 #endif
1854 while (fgets(line, sizeof(line), infile))
1855 {
1856 /* Strip whitespace */
1857 if (sscanf(line, "%s", host) != 1)
1858 continue;
1860 if ((host[0] == 0) || (host[0] == '#'))
1861 continue;
1863 if (ping_host_add(ping, host) < 0)
1864 {
1865 const char *errmsg = ping_get_error (ping);
1867 fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
1868 continue;
1869 }
1870 else
1871 {
1872 host_num++;
1873 }
1874 }
1876 #if _POSIX_SAVED_IDS
1877 /* Drop privileges */
1878 status = seteuid (getuid ());
1879 if (status != 0)
1880 {
1881 fprintf (stderr, "Temporarily dropping privileges "
1882 "failed: %s\n", strerror (errno));
1883 exit (EXIT_FAILURE);
1884 }
1885 #endif
1887 fclose(infile);
1888 }
1890 #if _POSIX_SAVED_IDS
1891 /* Regain privileges */
1892 status = seteuid (saved_set_uid);
1893 if (status != 0)
1894 {
1895 fprintf (stderr, "Temporarily re-gaining privileges "
1896 "failed: %s\n", strerror (errno));
1897 exit (EXIT_FAILURE);
1898 }
1899 #endif
1901 for (i = optind; i < argc; i++)
1902 {
1903 if (ping_host_add (ping, argv[i]) < 0)
1904 {
1905 const char *errmsg = ping_get_error (ping);
1907 fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
1908 continue;
1909 }
1910 else
1911 {
1912 host_num++;
1913 }
1914 }
1916 /* Permanently drop root privileges if we're setuid-root. */
1917 status = setuid (getuid ());
1918 if (status != 0)
1919 {
1920 fprintf (stderr, "Dropping privileges failed: %s\n",
1921 strerror (errno));
1922 exit (EXIT_FAILURE);
1923 }
1925 if (host_num == 0)
1926 exit (EXIT_FAILURE);
1928 #if _POSIX_SAVED_IDS
1929 saved_set_uid = (uid_t) -1;
1930 #endif
1932 if (opt_outfile != NULL)
1933 {
1934 outfile = fopen (opt_outfile, "a");
1935 if (outfile == NULL)
1936 {
1937 fprintf (stderr, "opening \"%s\" failed: %s\n",
1938 opt_outfile, strerror (errno));
1939 exit (EXIT_FAILURE);
1940 }
1941 }
1943 ping_initialize_contexts (ping);
1945 if (i == 0)
1946 return (1);
1948 memset (&sigint_action, '\0', sizeof (sigint_action));
1949 sigint_action.sa_handler = sigint_handler;
1950 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
1951 {
1952 perror ("sigaction");
1953 return (1);
1954 }
1956 pre_loop_hook (ping);
1958 while (opt_count != 0)
1959 {
1960 int index;
1961 int status;
1963 if (gettimeofday (&tv_begin, NULL) < 0)
1964 {
1965 perror ("gettimeofday");
1966 return (1);
1967 }
1969 status = ping_send (ping);
1970 if (status == -EINTR)
1971 {
1972 continue;
1973 }
1974 else if (status < 0)
1975 {
1976 fprintf (stderr, "ping_send failed: %s\n",
1977 ping_get_error (ping));
1978 return (1);
1979 }
1981 index = 0;
1982 for (iter = ping_iterator_get (ping);
1983 iter != NULL;
1984 iter = ping_iterator_next (iter))
1985 {
1986 update_host_hook (iter, index);
1987 index++;
1988 }
1990 pre_sleep_hook (ping);
1992 /* Don't sleep in the last iteration */
1993 if (opt_count == 1)
1994 break;
1996 if (gettimeofday (&tv_end, NULL) < 0)
1997 {
1998 perror ("gettimeofday");
1999 return (1);
2000 }
2002 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
2004 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
2005 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
2006 {
2007 if (errno == EINTR)
2008 {
2009 continue;
2010 }
2011 else
2012 {
2013 perror ("nanosleep");
2014 break;
2015 }
2016 }
2018 post_sleep_hook (ping);
2020 if (opt_count > 0)
2021 opt_count--;
2022 } /* while (opt_count != 0) */
2024 /* Returns the number of failed hosts according to -Z. */
2025 status = post_loop_hook (ping);
2027 ping_destroy (ping);
2029 if (outfile != NULL)
2030 {
2031 fclose (outfile);
2032 outfile = NULL;
2033 }
2035 if (status == 0)
2036 exit (EXIT_SUCCESS);
2037 else
2038 {
2039 if (status > 255)
2040 status = 255;
2041 exit (status);
2042 }
2043 } /* }}} int main */
2045 /* vim: set fdm=marker : */