![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
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;
213 static int host_num = 0;
214 static FILE *outfile = NULL;
216 #if USE_NCURSES
217 static WINDOW *main_win = NULL;
218 #endif
220 static void sigint_handler (int signal) /* {{{ */
221 {
222 /* Make compiler happy */
223 signal = 0;
224 /* Exit the loop */
225 opt_count = 0;
226 } /* }}} void sigint_handler */
228 static ping_context_t *context_create (void) /* {{{ */
229 {
230 ping_context_t *ret;
232 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
233 return (NULL);
235 memset (ret, '\0', sizeof (ping_context_t));
237 ret->latency_total = 0.0;
239 #if USE_NCURSES
240 ret->window = NULL;
241 #endif
243 return (ret);
244 } /* }}} ping_context_t *context_create */
246 static void context_destroy (ping_context_t *context) /* {{{ */
247 {
248 if (context == NULL)
249 return;
251 #if USE_NCURSES
252 if (context->window != NULL)
253 {
254 delwin (context->window);
255 context->window = NULL;
256 }
257 #endif
259 free (context);
260 } /* }}} void context_destroy */
262 static int compare_double (void const *arg0, void const *arg1) /* {{{ */
263 {
264 double dbl0 = *((double *) arg0);
265 double dbl1 = *((double *) arg1);
267 if (isnan (dbl0))
268 {
269 if (isnan (dbl1))
270 return 0;
271 else
272 return 1;
273 }
274 else if (isnan (dbl1))
275 return -1;
276 else if (dbl0 < dbl1)
277 return -1;
278 else if (dbl0 > dbl1)
279 return 1;
280 else
281 return 0;
282 } /* }}} int compare_double */
284 static void clean_history (ping_context_t *ctx) /* {{{ */
285 {
286 size_t i;
288 if (!ctx->history_dirty)
289 return;
291 /* Copy all values from by_time to by_value. */
292 memcpy (ctx->history_by_value, ctx->history_by_time,
293 sizeof (ctx->history_by_time));
295 /* Sort all RTTs. */
296 qsort (ctx->history_by_value, ctx->history_size, sizeof
297 (ctx->history_by_value[0]), compare_double);
299 /* Update the number of received RTTs. */
300 ctx->history_received = 0;
301 for (i = 0; i < ctx->history_size; i++)
302 if (!isnan (ctx->history_by_value[i]))
303 ctx->history_received++;
305 /* Mark as clean. */
306 ctx->history_dirty = 0;
307 } /* }}} void clean_history */
309 static double percentile_to_latency (ping_context_t *ctx, /* {{{ */
310 double percentile)
311 {
312 size_t index;
314 clean_history (ctx);
316 /* Not a single packet was received successfully. */
317 if (ctx->history_received == 0)
318 return NAN;
320 if (percentile <= 0.0)
321 index = 0;
322 else if (percentile >= 100.0)
323 index = ctx->history_received - 1;
324 else
325 {
326 index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received));
327 assert (index > 0);
328 index--;
329 }
331 return (ctx->history_by_value[index]);
332 } /* }}} double percentile_to_latency */
334 #if USE_NCURSES
335 static double latency_to_ratio (ping_context_t *ctx, /* {{{ */
336 double latency)
337 {
338 size_t low;
339 size_t high;
340 size_t index;
342 clean_history (ctx);
344 /* Not a single packet was received successfully. */
345 if (ctx->history_received == 0)
346 return NAN;
348 low = 0;
349 high = ctx->history_received - 1;
351 if (latency < ctx->history_by_value[low])
352 return 0.0;
353 else if (latency >= ctx->history_by_value[high])
354 return 100.0;
356 /* Do a binary search for the latency. This will work even when the
357 * exact latency is not in the array. If the latency is in the array
358 * multiple times, "low" will be set to the index of the last
359 * occurrence. The value at index "high" will be larger than the
360 * searched for latency (assured by the above "if" block. */
361 while ((high - low) > 1)
362 {
363 index = (high + low) / 2;
365 if (ctx->history_by_value[index] > latency)
366 high = index;
367 else
368 low = index;
369 }
371 assert (ctx->history_by_value[high] > latency);
372 assert (ctx->history_by_value[low] <= latency);
374 if (ctx->history_by_value[low] == latency)
375 index = low;
376 else
377 index = high;
379 return (((double) (index + 1)) / ((double) ctx->history_received));
380 } /* }}} double latency_to_ratio */
381 #endif
383 static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
384 {
385 if (ctx == NULL)
386 return (-1.0);
388 if (ctx->req_sent < 1)
389 return (0.0);
391 return (100.0 * (ctx->req_sent - ctx->req_rcvd)
392 / ((double) ctx->req_sent));
393 } /* }}} double context_get_packet_loss */
395 static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
396 {
397 pingobj_iter_t *iter;
398 int index;
400 if (ping == NULL)
401 return (EINVAL);
403 index = 0;
404 for (iter = ping_iterator_get (ping);
405 iter != NULL;
406 iter = ping_iterator_next (iter))
407 {
408 ping_context_t *context;
409 size_t buffer_size;
411 context = context_create ();
412 context->index = index;
414 buffer_size = sizeof (context->host);
415 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
417 buffer_size = sizeof (context->addr);
418 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
420 ping_iterator_set_context (iter, (void *) context);
422 index++;
423 }
425 return (0);
426 } /* }}} int ping_initialize_contexts */
428 static void usage_exit (const char *name, int status) /* {{{ */
429 {
430 fprintf (stderr, "Usage: %s [OPTIONS] "
431 "-f filename | host [host [host ...]]\n"
433 "\nAvailable options:\n"
434 " -4|-6 force the use of IPv4 or IPv6\n"
435 " -c count number of ICMP packets to send\n"
436 " -i interval interval with which to send ICMP packets\n"
437 " -w timeout time to wait for replies, in seconds\n"
438 " -t ttl time to live for each ICMP packet\n"
439 " -Q qos Quality of Service (QoS) of outgoing packets\n"
440 " Use \"-Q help\" for a list of valid options.\n"
441 " -I srcaddr source address\n"
442 " -D device outgoing interface name\n"
443 " -m mark mark to set on outgoing packets\n"
444 " -f filename read hosts from <filename>\n"
445 " -O filename write RTT measurements to <filename>\n"
446 #if USE_NCURSES
447 " -u / -U force / disable UTF-8 output\n"
448 " -g graph graph type to draw\n"
449 #endif
450 " -P percent Report the n'th percentile of latency\n"
451 " -Z percent Exit with non-zero exit status if more than this percentage of\n"
452 " probes timed out. (default: never)\n"
454 "\noping "PACKAGE_VERSION", http://noping.cc/\n"
455 "by Florian octo Forster <ff@octo.it>\n"
456 "for contributions see `AUTHORS'\n",
457 name);
458 exit (status);
459 } /* }}} void usage_exit */
461 __attribute__((noreturn))
462 static void usage_qos_exit (const char *arg, int status) /* {{{ */
463 {
464 if (arg != 0)
465 fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
467 fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
468 "\n"
469 " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
470 "\n"
471 " be Best Effort (BE, default PHB).\n"
472 " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
473 " (low delay, low loss, low jitter)\n"
474 " va Voice Admit (VA) DSCP (RFC 5865).\n"
475 " (capacity-admitted traffic)\n"
476 " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
477 " For example: \"af12\" (class 1, precedence 2)\n"
478 " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
479 " For example: \"cs1\" (priority traffic)\n"
480 "\n"
481 " Type of Service (IPv4, RFC 1349, obsolete)\n"
482 "\n"
483 " lowdelay (%#04x) minimize delay\n"
484 " throughput (%#04x) maximize throughput\n"
485 " reliability (%#04x) maximize reliability\n"
486 " mincost (%#04x) minimize monetary cost\n"
487 "\n"
488 " Specify manually\n"
489 "\n"
490 " 0x00 - 0xff Hexadecimal numeric specification.\n"
491 " 0 - 255 Decimal numeric specification.\n"
492 "\n",
493 (unsigned int) IPTOS_LOWDELAY,
494 (unsigned int) IPTOS_THROUGHPUT,
495 (unsigned int) IPTOS_RELIABILITY,
496 (unsigned int) IPTOS_MINCOST);
498 exit (status);
499 } /* }}} void usage_qos_exit */
501 static int set_opt_send_qos (const char *opt) /* {{{ */
502 {
503 if (opt == NULL)
504 return (EINVAL);
506 if (strcasecmp ("help", opt) == 0)
507 usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
508 /* DiffServ (RFC 2474): */
509 /* - Best effort (BE) */
510 else if (strcasecmp ("be", opt) == 0)
511 opt_send_qos = 0;
512 /* - Expedited Forwarding (EF, RFC 3246) */
513 else if (strcasecmp ("ef", opt) == 0)
514 opt_send_qos = 0xB8; /* == 0x2E << 2 */
515 /* - Voice Admit (VA, RFC 5865) */
516 else if (strcasecmp ("va", opt) == 0)
517 opt_send_qos = 0xB0; /* == 0x2D << 2 */
518 /* - Assured Forwarding (AF, RFC 2597) */
519 else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
520 && (strlen (opt) == 4))
521 {
522 uint8_t dscp;
523 uint8_t class = 0;
524 uint8_t prec = 0;
526 /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
527 if (opt[2] == '1')
528 class = 1;
529 else if (opt[2] == '2')
530 class = 2;
531 else if (opt[2] == '3')
532 class = 3;
533 else if (opt[2] == '4')
534 class = 4;
535 else
536 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
538 /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
539 if (opt[3] == '1')
540 prec = 1;
541 else if (opt[3] == '2')
542 prec = 2;
543 else if (opt[3] == '3')
544 prec = 3;
545 else
546 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
548 dscp = (8 * class) + (2 * prec);
549 /* The lower two bits are used for Explicit Congestion Notification (ECN) */
550 opt_send_qos = dscp << 2;
551 }
552 /* - Class Selector (CS) */
553 else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
554 && (strlen (opt) == 3))
555 {
556 uint8_t class;
558 if ((opt[2] < '0') || (opt[2] > '7'))
559 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
561 /* Not exactly legal by the C standard, but I don't know of any
562 * system not supporting this hack. */
563 class = ((uint8_t) opt[2]) - ((uint8_t) '0');
564 opt_send_qos = class << 5;
565 }
566 /* Type of Service (RFC 1349) */
567 else if (strcasecmp ("lowdelay", opt) == 0)
568 opt_send_qos = IPTOS_LOWDELAY;
569 else if (strcasecmp ("throughput", opt) == 0)
570 opt_send_qos = IPTOS_THROUGHPUT;
571 else if (strcasecmp ("reliability", opt) == 0)
572 opt_send_qos = IPTOS_RELIABILITY;
573 else if (strcasecmp ("mincost", opt) == 0)
574 opt_send_qos = IPTOS_MINCOST;
575 /* Numeric value */
576 else
577 {
578 unsigned long value;
579 char *endptr;
581 errno = 0;
582 endptr = NULL;
583 value = strtoul (opt, &endptr, /* base = */ 0);
584 if ((errno != 0) || (endptr == opt)
585 || (endptr == NULL) || (*endptr != 0)
586 || (value > 0xff))
587 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
589 opt_send_qos = (uint8_t) value;
590 }
592 return (0);
593 } /* }}} int set_opt_send_qos */
595 static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
596 {
597 uint8_t dscp;
598 uint8_t ecn;
599 char *dscp_str;
600 char *ecn_str;
602 dscp = qos >> 2;
603 ecn = qos & 0x03;
605 switch (dscp)
606 {
607 case 0x00: dscp_str = "be"; break;
608 case 0x2e: dscp_str = "ef"; break;
609 case 0x2d: dscp_str = "va"; break;
610 case 0x0a: dscp_str = "af11"; break;
611 case 0x0c: dscp_str = "af12"; break;
612 case 0x0e: dscp_str = "af13"; break;
613 case 0x12: dscp_str = "af21"; break;
614 case 0x14: dscp_str = "af22"; break;
615 case 0x16: dscp_str = "af23"; break;
616 case 0x1a: dscp_str = "af31"; break;
617 case 0x1c: dscp_str = "af32"; break;
618 case 0x1e: dscp_str = "af33"; break;
619 case 0x22: dscp_str = "af41"; break;
620 case 0x24: dscp_str = "af42"; break;
621 case 0x26: dscp_str = "af43"; break;
622 case 0x08: dscp_str = "cs1"; break;
623 case 0x10: dscp_str = "cs2"; break;
624 case 0x18: dscp_str = "cs3"; break;
625 case 0x20: dscp_str = "cs4"; break;
626 case 0x28: dscp_str = "cs5"; break;
627 case 0x30: dscp_str = "cs6"; break;
628 case 0x38: dscp_str = "cs7"; break;
629 default: dscp_str = NULL;
630 }
632 switch (ecn)
633 {
634 case 0x01: ecn_str = ",ecn(1)"; break;
635 case 0x02: ecn_str = ",ecn(0)"; break;
636 case 0x03: ecn_str = ",ce"; break;
637 default: ecn_str = "";
638 }
640 if (dscp_str == NULL)
641 snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
642 else
643 snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
644 buffer[buffer_size - 1] = 0;
646 return (buffer);
647 } /* }}} char *format_qos */
649 static int read_options (int argc, char **argv) /* {{{ */
650 {
651 int optchar;
653 while (1)
654 {
655 optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:O:P:m:w:"
656 #if USE_NCURSES
657 "uUg:"
658 #endif
659 );
661 if (optchar == -1)
662 break;
664 switch (optchar)
665 {
666 case '4':
667 case '6':
668 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
669 break;
671 case 'c':
672 {
673 int new_count;
674 new_count = atoi (optarg);
675 if (new_count > 0)
676 {
677 opt_count = new_count;
679 if ((opt_percentile < 0.0) && (opt_count < 20))
680 opt_percentile = 100.0 * (opt_count - 1) / opt_count;
681 }
682 else
683 fprintf(stderr, "Ignoring invalid count: %s\n",
684 optarg);
685 }
686 break;
688 case 'f':
689 {
690 if (opt_filename != NULL)
691 free (opt_filename);
692 opt_filename = strdup (optarg);
693 }
694 break;
696 case 'i':
697 {
698 double new_interval;
699 new_interval = atof (optarg);
700 if (new_interval < 0.001)
701 fprintf (stderr, "Ignoring invalid interval: %s\n",
702 optarg);
703 else
704 opt_interval = new_interval;
705 }
706 break;
708 case 'w':
709 {
710 char *endp = NULL;
711 double t = strtod (optarg, &endp);
712 if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0))
713 opt_timeout = t;
714 else
715 fprintf (stderr, "Ignoring invalid timeout: %s\n",
716 optarg);
717 }
718 break;
720 case 'I':
721 {
722 if (opt_srcaddr != NULL)
723 free (opt_srcaddr);
724 opt_srcaddr = strdup (optarg);
725 }
726 break;
728 case 'D':
729 opt_device = optarg;
730 break;
732 case 'm':
733 opt_mark = optarg;
734 break;
736 case 't':
737 {
738 int new_send_ttl;
739 new_send_ttl = atoi (optarg);
740 if ((new_send_ttl > 0) && (new_send_ttl < 256))
741 opt_send_ttl = new_send_ttl;
742 else
743 fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
744 optarg);
745 break;
746 }
748 case 'Q':
749 set_opt_send_qos (optarg);
750 break;
752 case 'O':
753 {
754 free (opt_outfile);
755 opt_outfile = strdup (optarg);
756 }
757 break;
759 case 'P':
760 {
761 double new_percentile;
762 new_percentile = atof (optarg);
763 if (isnan (new_percentile)
764 || (new_percentile < 0.1)
765 || (new_percentile > 100.0))
766 fprintf (stderr, "Ignoring invalid percentile: %s\n",
767 optarg);
768 else
769 opt_percentile = new_percentile;
770 }
771 break;
773 #if USE_NCURSES
774 case 'g':
775 if (strcasecmp ("none", optarg) == 0)
776 opt_show_graph = 0;
777 else if (strcasecmp ("prettyping", optarg) == 0)
778 opt_show_graph = 1;
779 else if (strcasecmp ("histogram", optarg) == 0)
780 opt_show_graph = 2;
781 else if (strcasecmp ("boxplot", optarg) == 0)
782 opt_show_graph = 3;
783 else
784 fprintf (stderr, "Unknown graph option: %s\n", optarg);
785 break;
787 case 'u':
788 opt_utf8 = 2;
789 break;
790 case 'U':
791 opt_utf8 = 1;
792 break;
793 #endif
795 case 'Z':
796 {
797 char *endptr = NULL;
798 double tmp;
800 errno = 0;
801 tmp = strtod (optarg, &endptr);
802 if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0))
803 {
804 fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg);
805 fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n");
806 }
807 else
808 opt_exit_status_threshold = tmp / 100.0;
810 break;
811 }
813 case 'h':
814 usage_exit (argv[0], 0);
815 break;
817 default:
818 usage_exit (argv[0], 1);
819 }
820 }
822 if (opt_percentile <= 0.0)
823 opt_percentile = OPING_DEFAULT_PERCENTILE;
825 return (optind);
826 } /* }}} read_options */
828 static void time_normalize (struct timespec *ts) /* {{{ */
829 {
830 while (ts->tv_nsec < 0)
831 {
832 if (ts->tv_sec == 0)
833 {
834 ts->tv_nsec = 0;
835 return;
836 }
838 ts->tv_sec -= 1;
839 ts->tv_nsec += 1000000000;
840 }
842 while (ts->tv_nsec >= 1000000000)
843 {
844 ts->tv_sec += 1;
845 ts->tv_nsec -= 1000000000;
846 }
847 } /* }}} void time_normalize */
849 static void time_calc (struct timespec *ts_dest, /* {{{ */
850 const struct timespec *ts_int,
851 const struct timeval *tv_begin,
852 const struct timeval *tv_end)
853 {
854 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
855 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
856 time_normalize (ts_dest);
858 /* Assure that `(begin + interval) > end'.
859 * This may seem overly complicated, but `tv_sec' is of type `time_t'
860 * which may be `unsigned. *sigh* */
861 if ((tv_end->tv_sec > ts_dest->tv_sec)
862 || ((tv_end->tv_sec == ts_dest->tv_sec)
863 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
864 {
865 ts_dest->tv_sec = 0;
866 ts_dest->tv_nsec = 0;
867 return;
868 }
870 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
871 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
872 time_normalize (ts_dest);
873 } /* }}} void time_calc */
875 #if USE_NCURSES
876 static _Bool has_utf8() /* {{{ */
877 {
878 # if HAVE_NCURSESW_NCURSES_H
879 if (!opt_utf8)
880 {
881 /* Automatically determine */
882 if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
883 opt_utf8 = 2;
884 else
885 opt_utf8 = 1;
886 }
887 return ((_Bool) (opt_utf8 - 1));
888 # else
889 return (0);
890 # endif
891 } /* }}} _Bool has_utf8 */
893 static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */
894 {
895 uint32_t *counters;
896 double *ratios;
897 size_t i;
898 size_t x_max;
899 size_t x;
901 clean_history (ctx);
903 if (ctx->history_received == 0)
904 return (ENOENT);
906 x_max = (size_t) getmaxx (ctx->window);
907 if (x_max <= 8)
908 return (EINVAL);
909 x_max -= 4;
911 counters = calloc (x_max, sizeof (*counters));
912 ratios = calloc (x_max, sizeof (*ratios));
914 /* Bucketize */
915 for (i = 0; i < ctx->history_received; i++)
916 {
917 double latency = ctx->history_by_value[i] / 1000.0;
918 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
920 if (index >= x_max)
921 index = x_max - 1;
923 counters[index]++;
924 }
926 /* Sum and calc ratios */
927 ratios[0] = ((double) counters[0]) / ((double) ctx->history_received);
928 for (x = 1; x < x_max; x++)
929 {
930 counters[x] += counters[x - 1];
931 ratios[x] = ((double) counters[x]) / ((double) ctx->history_received);
932 }
934 for (x = 0; x < x_max; x++)
935 {
936 int symbol = ' ';
937 _Bool reverse = 0;
939 if (x == 0)
940 {
941 if (ratios[x] >= 0.5)
942 {
943 symbol = BOXPLOT_MEDIAN;
944 reverse = 1;
945 }
946 else if (ratios[x] > 0.25)
947 {
948 symbol = BOXPLOT_BOX;
949 reverse = 1;
950 }
951 else if (ratios[x] > 0.025)
952 symbol = BOXPLOT_WHISKER_BAR;
953 else
954 symbol = ' '; /* NOP */
955 }
956 else /* (x != 0) */
957 {
958 if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5))
959 {
960 symbol = BOXPLOT_MEDIAN;
961 reverse = 1;
962 }
963 else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75))
964 || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75)))
965 {
966 symbol = BOXPLOT_BOX;
967 reverse = 1;
968 }
969 else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025))
970 {
971 if (ratios[x - 1] < 0.025)
972 symbol = BOXPLOT_WHISKER_LEFT_END;
973 else
974 symbol = BOXPLOT_WHISKER_BAR;
975 }
976 else if ((ratios[x] > .5) && (ratios[x] < 0.975))
977 {
978 symbol = BOXPLOT_WHISKER_BAR;
979 }
980 else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975))
981 symbol = BOXPLOT_WHISKER_RIGHT_END;
982 }
984 if (reverse)
985 wattron (ctx->window, A_REVERSE);
986 mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
987 // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
988 if (reverse)
989 wattroff (ctx->window, A_REVERSE);
990 }
992 free (counters);
993 free (ratios);
994 return (0);
995 } /* }}} int update_graph_boxplot */
997 static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */
998 double latency, unsigned int sequence)
999 {
1000 size_t x;
1001 size_t x_max;
1002 size_t history_offset;
1004 x_max = (size_t) getmaxx (ctx->window);
1005 if (x_max <= 4)
1006 return (EINVAL);
1007 x_max -= 4;
1009 /* Determine the first index in the history we need to draw
1010 * the graph. */
1011 history_offset = 0;
1012 if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */
1013 {
1014 if (ctx->history_index > x_max)
1015 history_offset = ctx->history_index - x_max;
1016 else /* wrap around */
1017 history_offset = ctx->history_index + ctx->history_size - x_max;
1018 }
1019 else /* window is larger than history */
1020 {
1021 if (ctx->history_index != ctx->history_size) /* no longer growing. */
1022 history_offset = ctx->history_index;
1023 else /* start-up */
1024 history_offset = 0;
1025 }
1027 for (x = 0; x < x_max; x++)
1028 {
1029 size_t index;
1030 double latency;
1032 int color = OPING_RED;
1033 char const *symbol = "!";
1034 int symbolc = '!';
1036 if (x >= ctx->history_size)
1037 {
1038 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1039 continue;
1040 }
1042 index = (history_offset + x) % ctx->history_size;
1043 latency = ctx->history_by_time[index];
1045 if (latency >= 0.0)
1046 {
1047 double ratio;
1049 size_t symbols_num = hist_symbols_acs_num;
1050 size_t colors_num = 1;
1052 size_t index_symbols;
1053 size_t index_colors;
1054 size_t intensity;
1056 /* latency is in milliseconds, opt_interval is in seconds. */
1057 ratio = (latency * 0.001) / opt_interval;
1058 if (ratio > 1) {
1059 ratio = 1.0;
1060 }
1062 if (has_utf8 ())
1063 symbols_num = hist_symbols_utf8_num;
1065 if (has_colors () == TRUE)
1066 colors_num = hist_colors_num;
1068 intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
1069 if (intensity >= (symbols_num * colors_num))
1070 intensity = (symbols_num * colors_num) - 1;
1072 index_symbols = intensity % symbols_num;
1073 assert (index_symbols < symbols_num);
1075 index_colors = intensity / symbols_num;
1076 assert (index_colors < colors_num);
1078 if (has_utf8())
1079 {
1080 color = hist_colors_utf8[index_colors];
1081 symbol = hist_symbols_utf8[index_symbols];
1082 }
1083 else
1084 {
1085 color = hist_colors_acs[index_colors];
1086 symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
1087 }
1088 }
1089 else /* if (!(latency >= 0.0)) */
1090 wattron (ctx->window, A_BOLD);
1092 if (has_colors () == TRUE)
1093 wattron (ctx->window, COLOR_PAIR(color));
1095 if (has_utf8())
1096 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol);
1097 else
1098 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc);
1100 if (has_colors () == TRUE)
1101 wattroff (ctx->window, COLOR_PAIR(color));
1103 /* Use negation here to handle NaN correctly. */
1104 if (!(latency >= 0.0))
1105 wattroff (ctx->window, A_BOLD);
1106 } /* for (x) */
1108 return (0);
1109 } /* }}} int update_graph_prettyping */
1111 static int update_graph_histogram (ping_context_t *ctx) /* {{{ */
1112 {
1113 uint32_t *counters;
1114 uint32_t *accumulated;
1115 uint32_t max;
1116 size_t i;
1117 size_t x_max;
1118 size_t x;
1120 size_t symbols_num = hist_symbols_acs_num;
1122 clean_history (ctx);
1124 if (ctx->history_received == 0)
1125 return (ENOENT);
1127 if (has_utf8 ())
1128 symbols_num = hist_symbols_utf8_num;
1130 x_max = (size_t) getmaxx (ctx->window);
1131 if (x_max <= 4)
1132 return (EINVAL);
1133 x_max -= 4;
1135 counters = calloc (x_max, sizeof (*counters));
1136 accumulated = calloc (x_max, sizeof (*accumulated));
1138 /* Bucketize */
1139 max = 0;
1140 for (i = 0; i < ctx->history_received; i++)
1141 {
1142 double latency = ctx->history_by_value[i] / 1000.0;
1143 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
1145 if (index >= x_max)
1146 index = x_max - 1;
1148 counters[index]++;
1149 if (max < counters[index])
1150 max = counters[index];
1151 }
1153 /* Sum */
1154 accumulated[0] = counters[0];
1155 for (x = 1; x < x_max; x++)
1156 accumulated[x] = counters[x] + accumulated[x - 1];
1158 /* Calculate ratios */
1159 for (x = 0; x < x_max; x++)
1160 {
1161 double height = ((double) counters[x]) / ((double) max);
1162 double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received);
1163 double ratio_prev = 0.0;
1164 size_t index;
1165 int color = 0;
1167 index = (size_t) (height * ((double) symbols_num));
1168 if (index >= symbols_num)
1169 index = symbols_num - 1;
1171 if (x > 0)
1172 ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received);
1174 if (has_colors () == TRUE)
1175 {
1176 if ((ratio_this <= threshold_green)
1177 || ((ratio_prev < threshold_green)
1178 && (ratio_this > threshold_green)))
1179 color = OPING_GREEN;
1180 else if ((ratio_this <= threshold_yellow)
1181 || ((ratio_prev < threshold_yellow)
1182 && (ratio_this > threshold_yellow)))
1183 color = OPING_YELLOW;
1184 else
1185 color = OPING_RED;
1187 wattron (ctx->window, COLOR_PAIR(color));
1188 }
1190 if (counters[x] == 0)
1191 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1192 else if (has_utf8 ())
1193 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2,
1194 hist_symbols_utf8[index]);
1195 else
1196 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2,
1197 hist_symbols_acs[index] | A_ALTCHARSET);
1199 if (has_colors () == TRUE)
1200 wattroff (ctx->window, COLOR_PAIR(color));
1202 }
1204 free (accumulated);
1205 return (0);
1206 } /* }}} int update_graph_histogram */
1208 static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
1209 {
1210 double latency = -1.0;
1211 size_t buffer_len = sizeof (latency);
1213 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1214 &latency, &buffer_len);
1216 unsigned int sequence = 0;
1217 buffer_len = sizeof (sequence);
1218 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1219 &sequence, &buffer_len);
1222 if ((ctx == NULL) || (ctx->window == NULL))
1223 return (EINVAL);
1225 /* werase (ctx->window); */
1227 box (ctx->window, 0, 0);
1228 wattron (ctx->window, A_BOLD);
1229 mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
1230 " %s ", ctx->host);
1231 wattroff (ctx->window, A_BOLD);
1232 wprintw (ctx->window, "ping statistics ");
1233 mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
1234 "%i packets transmitted, %i received, %.2f%% packet "
1235 "loss, time %.1fms",
1236 ctx->req_sent, ctx->req_rcvd,
1237 context_get_packet_loss (ctx),
1238 ctx->latency_total);
1239 if (ctx->req_rcvd != 0)
1240 {
1241 double min;
1242 double median;
1243 double max;
1244 double percentile;
1246 min = percentile_to_latency (ctx, 0.0);
1247 median = percentile_to_latency (ctx, 50.0);
1248 max = percentile_to_latency (ctx, 100.0);
1249 percentile = percentile_to_latency (ctx, opt_percentile);
1251 mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
1252 "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ",
1253 min, median, opt_percentile, percentile, max);
1254 }
1256 if (opt_show_graph == 1)
1257 update_graph_prettyping (ctx, latency, sequence);
1258 else if (opt_show_graph == 2)
1259 update_graph_histogram (ctx);
1260 else if (opt_show_graph == 3)
1261 update_graph_boxplot (ctx);
1263 wrefresh (ctx->window);
1265 return (0);
1266 } /* }}} int update_stats_from_context */
1268 static int on_resize (pingobj_t *ping) /* {{{ */
1269 {
1270 pingobj_iter_t *iter;
1271 int width = 0;
1272 int height = 0;
1273 int main_win_height;
1274 int box_height = (opt_show_graph == 0) ? 4 : 5;
1276 getmaxyx (stdscr, height, width);
1277 if ((height < 1) || (width < 1))
1278 return (EINVAL);
1280 main_win_height = height - (box_height * host_num);
1281 wresize (main_win, main_win_height, /* width = */ width);
1282 /* Allow scrolling */
1283 scrollok (main_win, TRUE);
1284 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1285 /* Allow hardware accelerated scrolling. */
1286 idlok (main_win, TRUE);
1287 wrefresh (main_win);
1289 for (iter = ping_iterator_get (ping);
1290 iter != NULL;
1291 iter = ping_iterator_next (iter))
1292 {
1293 ping_context_t *context;
1295 context = ping_iterator_get_context (iter);
1296 if (context == NULL)
1297 continue;
1299 if (context->window != NULL)
1300 {
1301 delwin (context->window);
1302 context->window = NULL;
1303 }
1304 context->window = newwin (/* height = */ box_height,
1305 /* width = */ width,
1306 /* y = */ main_win_height + (box_height * context->index),
1307 /* x = */ 0);
1308 }
1310 return (0);
1311 } /* }}} */
1313 static int check_resize (pingobj_t *ping) /* {{{ */
1314 {
1315 int need_resize = 0;
1317 while (42)
1318 {
1319 int key = wgetch (stdscr);
1320 if (key == ERR)
1321 break;
1322 else if (key == KEY_RESIZE)
1323 need_resize = 1;
1324 else if (key == 'g')
1325 {
1326 if (opt_show_graph == 3)
1327 opt_show_graph = 1;
1328 else if (opt_show_graph > 0)
1329 opt_show_graph++;
1330 }
1331 }
1333 if (need_resize)
1334 return (on_resize (ping));
1335 else
1336 return (0);
1337 } /* }}} int check_resize */
1339 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1340 {
1341 pingobj_iter_t *iter;
1342 int width = 0;
1343 int height = 0;
1344 int main_win_height;
1345 int box_height = (opt_show_graph == 0) ? 4 : 5;
1347 initscr ();
1348 cbreak ();
1349 noecho ();
1350 nodelay (stdscr, TRUE);
1352 getmaxyx (stdscr, height, width);
1353 if ((height < 1) || (width < 1))
1354 return (EINVAL);
1356 if (has_colors () == TRUE)
1357 {
1358 start_color ();
1359 init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
1360 init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
1361 init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
1362 init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
1363 init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
1364 init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
1365 }
1367 main_win_height = height - (box_height * host_num);
1368 main_win = newwin (/* height = */ main_win_height,
1369 /* width = */ width,
1370 /* y = */ 0, /* x = */ 0);
1371 /* Allow scrolling */
1372 scrollok (main_win, TRUE);
1373 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1374 /* Allow hardware accelerated scrolling. */
1375 idlok (main_win, TRUE);
1376 wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
1377 wrefresh (main_win);
1379 for (iter = ping_iterator_get (ping);
1380 iter != NULL;
1381 iter = ping_iterator_next (iter))
1382 {
1383 ping_context_t *context;
1385 context = ping_iterator_get_context (iter);
1386 if (context == NULL)
1387 continue;
1389 if (context->window != NULL)
1390 {
1391 delwin (context->window);
1392 context->window = NULL;
1393 }
1394 context->window = newwin (/* height = */ box_height,
1395 /* width = */ width,
1396 /* y = */ main_win_height + (box_height * context->index),
1397 /* x = */ 0);
1398 }
1401 /* Don't know what good this does exactly, but without this code
1402 * "check_resize" will be called right after startup and *somehow*
1403 * this leads to display errors. If we purge all initial characters
1404 * here, the problem goes away. "wgetch" is non-blocking due to
1405 * "nodelay" (see above). */
1406 while (wgetch (stdscr) != ERR)
1407 {
1408 /* eat up characters */;
1409 }
1411 return (0);
1412 } /* }}} int pre_loop_hook */
1414 static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
1415 {
1416 return (check_resize (ping));
1417 } /* }}} int pre_sleep_hook */
1419 static int post_sleep_hook (pingobj_t *ping) /* {{{ */
1420 {
1421 return (check_resize (ping));
1422 } /* }}} int pre_sleep_hook */
1423 #else /* if !USE_NCURSES */
1424 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1425 {
1426 pingobj_iter_t *iter;
1428 for (iter = ping_iterator_get (ping);
1429 iter != NULL;
1430 iter = ping_iterator_next (iter))
1431 {
1432 ping_context_t *ctx;
1433 size_t buffer_size;
1435 ctx = ping_iterator_get_context (iter);
1436 if (ctx == NULL)
1437 continue;
1439 buffer_size = 0;
1440 ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
1442 printf ("PING %s (%s) %zu bytes of data.\n",
1443 ctx->host, ctx->addr, buffer_size);
1444 }
1446 return (0);
1447 } /* }}} int pre_loop_hook */
1449 static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1450 {
1451 fflush (stdout);
1453 return (0);
1454 } /* }}} int pre_sleep_hook */
1456 static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1457 {
1458 return (0);
1459 } /* }}} int post_sleep_hook */
1460 #endif
1462 static void update_context (ping_context_t *ctx, double latency) /* {{{ */
1463 {
1464 ctx->req_sent++;
1466 if (latency > 0.0)
1467 {
1468 ctx->req_rcvd++;
1469 ctx->latency_total += latency;
1470 }
1471 else
1472 {
1473 latency = NAN;
1474 }
1476 ctx->history_by_time[ctx->history_index] = latency;
1478 ctx->history_dirty = 1;
1480 /* Update index and size. */
1481 ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX;
1482 if (ctx->history_size < HISTORY_SIZE_MAX)
1483 ctx->history_size++;
1484 } /* }}} void update_context */
1486 static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
1487 __attribute__((unused)) int index)
1488 {
1489 double latency;
1490 unsigned int sequence;
1491 int recv_ttl;
1492 uint8_t recv_qos;
1493 char recv_qos_str[16];
1494 size_t buffer_len;
1495 size_t data_len;
1496 ping_context_t *context;
1498 latency = -1.0;
1499 buffer_len = sizeof (latency);
1500 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1501 &latency, &buffer_len);
1503 sequence = 0;
1504 buffer_len = sizeof (sequence);
1505 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1506 &sequence, &buffer_len);
1508 recv_ttl = -1;
1509 buffer_len = sizeof (recv_ttl);
1510 ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
1511 &recv_ttl, &buffer_len);
1513 recv_qos = 0;
1514 buffer_len = sizeof (recv_qos);
1515 ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
1516 &recv_qos, &buffer_len);
1518 data_len = 0;
1519 ping_iterator_get_info (iter, PING_INFO_DATA,
1520 NULL, &data_len);
1522 context = (ping_context_t *) ping_iterator_get_context (iter);
1524 #if USE_NCURSES
1525 # define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
1526 #else
1527 # define HOST_PRINTF(...) printf(__VA_ARGS__)
1528 #endif
1530 update_context (context, latency);
1532 if (latency > 0.0)
1533 {
1534 #if USE_NCURSES
1535 if (has_colors () == TRUE)
1536 {
1537 double ratio;
1538 int color = OPING_GREEN;
1540 ratio = latency_to_ratio (context, latency);
1541 if (ratio < threshold_green)
1542 color = OPING_GREEN;
1543 else if (ratio < threshold_yellow)
1544 color = OPING_YELLOW;
1545 else
1546 color = OPING_RED;
1548 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1549 data_len, context->host, context->addr,
1550 sequence, recv_ttl,
1551 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1552 if ((recv_qos != 0) || (opt_send_qos != 0))
1553 {
1554 HOST_PRINTF ("qos=%s ",
1555 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1556 }
1557 HOST_PRINTF ("time=");
1558 wattron (main_win, COLOR_PAIR(color));
1559 HOST_PRINTF ("%.2f", latency);
1560 wattroff (main_win, COLOR_PAIR(color));
1561 HOST_PRINTF (" ms\n");
1562 }
1563 else
1564 {
1565 #endif
1566 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1567 data_len,
1568 context->host, context->addr,
1569 sequence, recv_ttl);
1570 if ((recv_qos != 0) || (opt_send_qos != 0))
1571 {
1572 HOST_PRINTF ("qos=%s ",
1573 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1574 }
1575 HOST_PRINTF ("time=%.2f ms\n", latency);
1576 #if USE_NCURSES
1577 }
1578 #endif
1579 }
1580 else /* if (!(latency > 0.0)) */
1581 {
1582 #if USE_NCURSES
1583 if (has_colors () == TRUE)
1584 {
1585 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
1586 context->host, context->addr,
1587 sequence);
1588 wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1589 HOST_PRINTF ("timeout");
1590 wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1591 HOST_PRINTF ("\n");
1592 }
1593 else
1594 {
1595 #endif
1596 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
1597 context->host, context->addr,
1598 sequence);
1599 #if USE_NCURSES
1600 }
1601 #endif
1602 }
1604 if (outfile != NULL)
1605 {
1606 struct timespec ts = { 0, 0 };
1608 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
1609 {
1610 double t = ((double) ts.tv_sec) + (((double) ts.tv_nsec) / 1000000000.0);
1612 if ((sequence % 32) == 0)
1613 fprintf (outfile, "#time,host,latency[ms]\n");
1615 fprintf (outfile, "%.3f,\"%s\",%.2f\n", t, context->host, latency);
1616 }
1617 }
1619 #if USE_NCURSES
1620 update_stats_from_context (context, iter);
1621 wrefresh (main_win);
1622 #endif
1623 } /* }}} void update_host_hook */
1625 /* Prints statistics for each host, cleans up the contexts and returns the
1626 * number of hosts which failed to return more than the fraction
1627 * opt_exit_status_threshold of pings. */
1628 static int post_loop_hook (pingobj_t *ping) /* {{{ */
1629 {
1630 pingobj_iter_t *iter;
1631 int failure_count = 0;
1633 #if USE_NCURSES
1634 endwin ();
1635 #endif
1637 for (iter = ping_iterator_get (ping);
1638 iter != NULL;
1639 iter = ping_iterator_next (iter))
1640 {
1641 ping_context_t *context;
1643 context = ping_iterator_get_context (iter);
1645 printf ("\n--- %s ping statistics ---\n"
1646 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
1647 context->host, context->req_sent, context->req_rcvd,
1648 context_get_packet_loss (context),
1649 context->latency_total);
1651 {
1652 double pct_failed = 1.0 - (((double) context->req_rcvd)
1653 / ((double) context->req_sent));
1654 if (pct_failed > opt_exit_status_threshold)
1655 failure_count++;
1656 }
1658 if (context->req_rcvd != 0)
1659 {
1660 double min;
1661 double median;
1662 double max;
1663 double percentile;
1665 min = percentile_to_latency (context, 0.0);
1666 median = percentile_to_latency (context, 50.0);
1667 max = percentile_to_latency (context, 100.0);
1668 percentile = percentile_to_latency (context, opt_percentile);
1670 printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n",
1671 min, median, opt_percentile, percentile, max);
1672 }
1674 ping_iterator_set_context (iter, NULL);
1675 context_destroy (context);
1676 }
1678 return (failure_count);
1679 } /* }}} int post_loop_hook */
1681 int main (int argc, char **argv) /* {{{ */
1682 {
1683 pingobj_t *ping;
1684 pingobj_iter_t *iter;
1686 struct sigaction sigint_action;
1688 struct timeval tv_begin;
1689 struct timeval tv_end;
1690 struct timespec ts_wait;
1691 struct timespec ts_int;
1693 int optind;
1694 int i;
1695 int status;
1696 #if _POSIX_SAVED_IDS
1697 uid_t saved_set_uid;
1699 /* Save the old effective user id */
1700 saved_set_uid = geteuid ();
1701 /* Set the effective user ID to the real user ID without changing the
1702 * saved set-user ID */
1703 status = seteuid (getuid ());
1704 if (status != 0)
1705 {
1706 fprintf (stderr, "Temporarily dropping privileges "
1707 "failed: %s\n", strerror (errno));
1708 exit (EXIT_FAILURE);
1709 }
1710 #endif
1712 setlocale(LC_ALL, "");
1713 optind = read_options (argc, argv);
1715 #if !_POSIX_SAVED_IDS
1716 /* Cannot temporarily drop privileges -> reject every file but "-". */
1717 if ((opt_filename != NULL)
1718 && (strcmp ("-", opt_filename) != 0)
1719 && (getuid () != geteuid ()))
1720 {
1721 fprintf (stderr, "Your real and effective user IDs don't "
1722 "match. Reading from a file (option '-f')\n"
1723 "is therefore too risky. You can still read "
1724 "from STDIN using '-f -' if you like.\n"
1725 "Sorry.\n");
1726 exit (EXIT_FAILURE);
1727 }
1728 #endif
1730 if ((optind >= argc) && (opt_filename == NULL)) {
1731 usage_exit (argv[0], 1);
1732 }
1734 if ((ping = ping_construct ()) == NULL)
1735 {
1736 fprintf (stderr, "ping_construct failed\n");
1737 return (1);
1738 }
1740 if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
1741 {
1742 fprintf (stderr, "Setting TTL to %i failed: %s\n",
1743 opt_send_ttl, ping_get_error (ping));
1744 }
1746 if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
1747 {
1748 fprintf (stderr, "Setting TOS to %i failed: %s\n",
1749 opt_send_qos, ping_get_error (ping));
1750 }
1752 {
1753 double temp_sec;
1754 double temp_nsec;
1756 temp_nsec = modf (opt_interval, &temp_sec);
1757 ts_int.tv_sec = (time_t) temp_sec;
1758 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
1760 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
1761 }
1763 if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0)
1764 {
1765 fprintf (stderr, "Setting timeout failed: %s\n",
1766 ping_get_error (ping));
1767 }
1769 if (opt_addrfamily != PING_DEF_AF)
1770 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
1772 if (opt_srcaddr != NULL)
1773 {
1774 if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
1775 {
1776 fprintf (stderr, "Setting source address failed: %s\n",
1777 ping_get_error (ping));
1778 }
1779 }
1781 if (opt_device != NULL)
1782 {
1783 if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
1784 {
1785 fprintf (stderr, "Setting device failed: %s\n",
1786 ping_get_error (ping));
1787 }
1788 }
1790 if (opt_mark != NULL)
1791 {
1792 char *endp = NULL;
1793 int mark = (int) strtol (opt_mark, &endp, /* base = */ 0);
1794 if ((opt_mark[0] != 0) && (endp != NULL) && (*endp == 0))
1795 {
1796 if (ping_setopt(ping, PING_OPT_MARK, (void*)(&mark)) != 0)
1797 {
1798 fprintf (stderr, "Setting mark failed: %s\n",
1799 ping_get_error (ping));
1800 }
1801 }
1802 else
1803 {
1804 fprintf(stderr, "Ignoring invalid mark: %s\n", optarg);
1805 }
1806 }
1808 if (opt_filename != NULL)
1809 {
1810 FILE *infile;
1811 char line[256];
1812 char host[256];
1814 if (strcmp (opt_filename, "-") == 0)
1815 /* Open STDIN */
1816 infile = fdopen(0, "r");
1817 else
1818 infile = fopen(opt_filename, "r");
1820 if (infile == NULL)
1821 {
1822 fprintf (stderr, "Opening %s failed: %s\n",
1823 (strcmp (opt_filename, "-") == 0)
1824 ? "STDIN" : opt_filename,
1825 strerror(errno));
1826 return (1);
1827 }
1829 #if _POSIX_SAVED_IDS
1830 /* Regain privileges */
1831 status = seteuid (saved_set_uid);
1832 if (status != 0)
1833 {
1834 fprintf (stderr, "Temporarily re-gaining privileges "
1835 "failed: %s\n", strerror (errno));
1836 exit (EXIT_FAILURE);
1837 }
1838 #endif
1840 while (fgets(line, sizeof(line), infile))
1841 {
1842 /* Strip whitespace */
1843 if (sscanf(line, "%s", host) != 1)
1844 continue;
1846 if ((host[0] == 0) || (host[0] == '#'))
1847 continue;
1849 if (ping_host_add(ping, host) < 0)
1850 {
1851 const char *errmsg = ping_get_error (ping);
1853 fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
1854 continue;
1855 }
1856 else
1857 {
1858 host_num++;
1859 }
1860 }
1862 #if _POSIX_SAVED_IDS
1863 /* Drop privileges */
1864 status = seteuid (getuid ());
1865 if (status != 0)
1866 {
1867 fprintf (stderr, "Temporarily dropping privileges "
1868 "failed: %s\n", strerror (errno));
1869 exit (EXIT_FAILURE);
1870 }
1871 #endif
1873 fclose(infile);
1874 }
1876 #if _POSIX_SAVED_IDS
1877 /* Regain privileges */
1878 status = seteuid (saved_set_uid);
1879 if (status != 0)
1880 {
1881 fprintf (stderr, "Temporarily re-gaining privileges "
1882 "failed: %s\n", strerror (errno));
1883 exit (EXIT_FAILURE);
1884 }
1885 #endif
1887 for (i = optind; i < argc; i++)
1888 {
1889 if (ping_host_add (ping, argv[i]) < 0)
1890 {
1891 const char *errmsg = ping_get_error (ping);
1893 fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
1894 continue;
1895 }
1896 else
1897 {
1898 host_num++;
1899 }
1900 }
1902 /* Permanently drop root privileges if we're setuid-root. */
1903 status = setuid (getuid ());
1904 if (status != 0)
1905 {
1906 fprintf (stderr, "Dropping privileges failed: %s\n",
1907 strerror (errno));
1908 exit (EXIT_FAILURE);
1909 }
1911 if (host_num == 0)
1912 exit (EXIT_FAILURE);
1914 #if _POSIX_SAVED_IDS
1915 saved_set_uid = (uid_t) -1;
1916 #endif
1918 if (opt_outfile != NULL)
1919 {
1920 outfile = fopen (opt_outfile, "a");
1921 if (outfile == NULL)
1922 {
1923 fprintf (stderr, "opening \"%s\" failed: %s\n",
1924 opt_outfile, strerror (errno));
1925 exit (EXIT_FAILURE);
1926 }
1927 }
1929 ping_initialize_contexts (ping);
1931 if (i == 0)
1932 return (1);
1934 memset (&sigint_action, '\0', sizeof (sigint_action));
1935 sigint_action.sa_handler = sigint_handler;
1936 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
1937 {
1938 perror ("sigaction");
1939 return (1);
1940 }
1942 pre_loop_hook (ping);
1944 while (opt_count != 0)
1945 {
1946 int index;
1947 int status;
1949 if (gettimeofday (&tv_begin, NULL) < 0)
1950 {
1951 perror ("gettimeofday");
1952 return (1);
1953 }
1955 status = ping_send (ping);
1956 if (status == -EINTR)
1957 {
1958 continue;
1959 }
1960 else if (status < 0)
1961 {
1962 fprintf (stderr, "ping_send failed: %s\n",
1963 ping_get_error (ping));
1964 return (1);
1965 }
1967 index = 0;
1968 for (iter = ping_iterator_get (ping);
1969 iter != NULL;
1970 iter = ping_iterator_next (iter))
1971 {
1972 update_host_hook (iter, index);
1973 index++;
1974 }
1976 pre_sleep_hook (ping);
1978 /* Don't sleep in the last iteration */
1979 if (opt_count == 1)
1980 break;
1982 if (gettimeofday (&tv_end, NULL) < 0)
1983 {
1984 perror ("gettimeofday");
1985 return (1);
1986 }
1988 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
1990 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
1991 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
1992 {
1993 if (errno == EINTR)
1994 {
1995 continue;
1996 }
1997 else
1998 {
1999 perror ("nanosleep");
2000 break;
2001 }
2002 }
2004 post_sleep_hook (ping);
2006 if (opt_count > 0)
2007 opt_count--;
2008 } /* while (opt_count != 0) */
2010 /* Returns the number of failed hosts according to -Z. */
2011 status = post_loop_hook (ping);
2013 ping_destroy (ping);
2015 if (outfile != NULL)
2016 {
2017 fclose (outfile);
2018 outfile = NULL;
2019 }
2021 if (status == 0)
2022 exit (EXIT_SUCCESS);
2023 else
2024 {
2025 if (status > 255)
2026 status = 255;
2027 exit (status);
2028 }
2029 } /* }}} int main */
2031 /* vim: set fdm=marker : */