0ec67947310e7b73d5d8ae1cb8afbf016bdc0577
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 /* Sort all RTTs. */
297 qsort (ctx->history_by_value, ctx->history_size, sizeof
298 (ctx->history_by_value[0]), compare_double);
300 /* Update the number of received RTTs. */
301 ctx->history_received = 0;
302 for (i = 0; i < ctx->history_size; i++)
303 if (!isnan (ctx->history_by_value[i]))
304 ctx->history_received++;
306 /* Mark as clean. */
307 ctx->history_dirty = 0;
308 } /* }}} void clean_history */
310 static double percentile_to_latency (ping_context_t *ctx, /* {{{ */
311 double percentile)
312 {
313 size_t index;
315 clean_history (ctx);
317 /* Not a single packet was received successfully. */
318 if (ctx->history_received == 0)
319 return NAN;
321 if (percentile <= 0.0)
322 index = 0;
323 else if (percentile >= 100.0)
324 index = ctx->history_received - 1;
325 else
326 {
327 index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received));
328 assert (index > 0);
329 index--;
330 }
332 return (ctx->history_by_value[index]);
333 } /* }}} double percentile_to_latency */
335 #if USE_NCURSES
336 static double latency_to_ratio (ping_context_t *ctx, /* {{{ */
337 double latency)
338 {
339 size_t low;
340 size_t high;
341 size_t index;
343 clean_history (ctx);
345 /* Not a single packet was received successfully. */
346 if (ctx->history_received == 0)
347 return NAN;
349 low = 0;
350 high = ctx->history_received - 1;
352 if (latency < ctx->history_by_value[low])
353 return 0.0;
354 else if (latency >= ctx->history_by_value[high])
355 return 100.0;
357 /* Do a binary search for the latency. This will work even when the
358 * exact latency is not in the array. If the latency is in the array
359 * multiple times, "low" will be set to the index of the last
360 * occurrence. The value at index "high" will be larger than the
361 * searched for latency (assured by the above "if" block. */
362 while ((high - low) > 1)
363 {
364 index = (high + low) / 2;
366 if (ctx->history_by_value[index] > latency)
367 high = index;
368 else
369 low = index;
370 }
372 assert (ctx->history_by_value[high] > latency);
373 assert (ctx->history_by_value[low] <= latency);
375 if (ctx->history_by_value[low] == latency)
376 index = low;
377 else
378 index = high;
380 return (((double) (index + 1)) / ((double) ctx->history_received));
381 } /* }}} double latency_to_ratio */
382 #endif
384 static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
385 {
386 if (ctx == NULL)
387 return (-1.0);
389 if (ctx->req_sent < 1)
390 return (0.0);
392 return (100.0 * (ctx->req_sent - ctx->req_rcvd)
393 / ((double) ctx->req_sent));
394 } /* }}} double context_get_packet_loss */
396 static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
397 {
398 pingobj_iter_t *iter;
399 int index;
401 if (ping == NULL)
402 return (EINVAL);
404 index = 0;
405 for (iter = ping_iterator_get (ping);
406 iter != NULL;
407 iter = ping_iterator_next (iter))
408 {
409 ping_context_t *context;
410 size_t buffer_size;
412 context = context_create ();
413 context->index = index;
415 buffer_size = sizeof (context->host);
416 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
418 buffer_size = sizeof (context->addr);
419 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
421 ping_iterator_set_context (iter, (void *) context);
423 index++;
424 }
426 return (0);
427 } /* }}} int ping_initialize_contexts */
429 static void usage_exit (const char *name, int status) /* {{{ */
430 {
431 fprintf (stderr, "Usage: %s [OPTIONS] "
432 "-f filename | host [host [host ...]]\n"
434 "\nAvailable options:\n"
435 " -4|-6 force the use of IPv4 or IPv6\n"
436 " -c count number of ICMP packets to send\n"
437 " -i interval interval with which to send ICMP packets\n"
438 " -w timeout time to wait for replies, in seconds\n"
439 " -t ttl time to live for each ICMP packet\n"
440 " -Q qos Quality of Service (QoS) of outgoing packets\n"
441 " Use \"-Q help\" for a list of valid options.\n"
442 " -I srcaddr source address\n"
443 " -D device outgoing interface name\n"
444 " -m mark mark to set on outgoing packets\n"
445 " -f filename read hosts from <filename>\n"
446 " -O filename write RTT measurements to <filename>\n"
447 #if USE_NCURSES
448 " -u / -U force / disable UTF-8 output\n"
449 " -g graph graph type to draw\n"
450 #endif
451 " -P percent Report the n'th percentile of latency\n"
452 " -Z percent Exit with non-zero exit status if more than this percentage of\n"
453 " probes timed out. (default: never)\n"
455 "\noping "PACKAGE_VERSION", http://noping.cc/\n"
456 "by Florian octo Forster <ff@octo.it>\n"
457 "for contributions see `AUTHORS'\n",
458 name);
459 exit (status);
460 } /* }}} void usage_exit */
462 __attribute__((noreturn))
463 static void usage_qos_exit (const char *arg, int status) /* {{{ */
464 {
465 if (arg != 0)
466 fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
468 fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
469 "\n"
470 " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
471 "\n"
472 " be Best Effort (BE, default PHB).\n"
473 " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
474 " (low delay, low loss, low jitter)\n"
475 " va Voice Admit (VA) DSCP (RFC 5865).\n"
476 " (capacity-admitted traffic)\n"
477 " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
478 " For example: \"af12\" (class 1, precedence 2)\n"
479 " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
480 " For example: \"cs1\" (priority traffic)\n"
481 "\n"
482 " Type of Service (IPv4, RFC 1349, obsolete)\n"
483 "\n"
484 " lowdelay (%#04x) minimize delay\n"
485 " throughput (%#04x) maximize throughput\n"
486 " reliability (%#04x) maximize reliability\n"
487 " mincost (%#04x) minimize monetary cost\n"
488 "\n"
489 " Specify manually\n"
490 "\n"
491 " 0x00 - 0xff Hexadecimal numeric specification.\n"
492 " 0 - 255 Decimal numeric specification.\n"
493 "\n",
494 (unsigned int) IPTOS_LOWDELAY,
495 (unsigned int) IPTOS_THROUGHPUT,
496 (unsigned int) IPTOS_RELIABILITY,
497 (unsigned int) IPTOS_MINCOST);
499 exit (status);
500 } /* }}} void usage_qos_exit */
502 static int set_opt_send_qos (const char *opt) /* {{{ */
503 {
504 if (opt == NULL)
505 return (EINVAL);
507 if (strcasecmp ("help", opt) == 0)
508 usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
509 /* DiffServ (RFC 2474): */
510 /* - Best effort (BE) */
511 else if (strcasecmp ("be", opt) == 0)
512 opt_send_qos = 0;
513 /* - Expedited Forwarding (EF, RFC 3246) */
514 else if (strcasecmp ("ef", opt) == 0)
515 opt_send_qos = 0xB8; /* == 0x2E << 2 */
516 /* - Voice Admit (VA, RFC 5865) */
517 else if (strcasecmp ("va", opt) == 0)
518 opt_send_qos = 0xB0; /* == 0x2D << 2 */
519 /* - Assured Forwarding (AF, RFC 2597) */
520 else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
521 && (strlen (opt) == 4))
522 {
523 uint8_t dscp;
524 uint8_t class = 0;
525 uint8_t prec = 0;
527 /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
528 if (opt[2] == '1')
529 class = 1;
530 else if (opt[2] == '2')
531 class = 2;
532 else if (opt[2] == '3')
533 class = 3;
534 else if (opt[2] == '4')
535 class = 4;
536 else
537 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
539 /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
540 if (opt[3] == '1')
541 prec = 1;
542 else if (opt[3] == '2')
543 prec = 2;
544 else if (opt[3] == '3')
545 prec = 3;
546 else
547 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
549 dscp = (8 * class) + (2 * prec);
550 /* The lower two bits are used for Explicit Congestion Notification (ECN) */
551 opt_send_qos = dscp << 2;
552 }
553 /* - Class Selector (CS) */
554 else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
555 && (strlen (opt) == 3))
556 {
557 uint8_t class;
559 if ((opt[2] < '0') || (opt[2] > '7'))
560 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
562 /* Not exactly legal by the C standard, but I don't know of any
563 * system not supporting this hack. */
564 class = ((uint8_t) opt[2]) - ((uint8_t) '0');
565 opt_send_qos = class << 5;
566 }
567 /* Type of Service (RFC 1349) */
568 else if (strcasecmp ("lowdelay", opt) == 0)
569 opt_send_qos = IPTOS_LOWDELAY;
570 else if (strcasecmp ("throughput", opt) == 0)
571 opt_send_qos = IPTOS_THROUGHPUT;
572 else if (strcasecmp ("reliability", opt) == 0)
573 opt_send_qos = IPTOS_RELIABILITY;
574 else if (strcasecmp ("mincost", opt) == 0)
575 opt_send_qos = IPTOS_MINCOST;
576 /* Numeric value */
577 else
578 {
579 unsigned long value;
580 char *endptr;
582 errno = 0;
583 endptr = NULL;
584 value = strtoul (opt, &endptr, /* base = */ 0);
585 if ((errno != 0) || (endptr == opt)
586 || (endptr == NULL) || (*endptr != 0)
587 || (value > 0xff))
588 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
590 opt_send_qos = (uint8_t) value;
591 }
593 return (0);
594 } /* }}} int set_opt_send_qos */
596 static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
597 {
598 uint8_t dscp;
599 uint8_t ecn;
600 char *dscp_str;
601 char *ecn_str;
603 dscp = qos >> 2;
604 ecn = qos & 0x03;
606 switch (dscp)
607 {
608 case 0x00: dscp_str = "be"; break;
609 case 0x2e: dscp_str = "ef"; break;
610 case 0x2d: dscp_str = "va"; break;
611 case 0x0a: dscp_str = "af11"; break;
612 case 0x0c: dscp_str = "af12"; break;
613 case 0x0e: dscp_str = "af13"; break;
614 case 0x12: dscp_str = "af21"; break;
615 case 0x14: dscp_str = "af22"; break;
616 case 0x16: dscp_str = "af23"; break;
617 case 0x1a: dscp_str = "af31"; break;
618 case 0x1c: dscp_str = "af32"; break;
619 case 0x1e: dscp_str = "af33"; break;
620 case 0x22: dscp_str = "af41"; break;
621 case 0x24: dscp_str = "af42"; break;
622 case 0x26: dscp_str = "af43"; break;
623 case 0x08: dscp_str = "cs1"; break;
624 case 0x10: dscp_str = "cs2"; break;
625 case 0x18: dscp_str = "cs3"; break;
626 case 0x20: dscp_str = "cs4"; break;
627 case 0x28: dscp_str = "cs5"; break;
628 case 0x30: dscp_str = "cs6"; break;
629 case 0x38: dscp_str = "cs7"; break;
630 default: dscp_str = NULL;
631 }
633 switch (ecn)
634 {
635 case 0x01: ecn_str = ",ecn(1)"; break;
636 case 0x02: ecn_str = ",ecn(0)"; break;
637 case 0x03: ecn_str = ",ce"; break;
638 default: ecn_str = "";
639 }
641 if (dscp_str == NULL)
642 snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
643 else
644 snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
645 buffer[buffer_size - 1] = 0;
647 return (buffer);
648 } /* }}} char *format_qos */
650 static int read_options (int argc, char **argv) /* {{{ */
651 {
652 int optchar;
654 while (1)
655 {
656 optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:O:P:m:w:b"
657 #if USE_NCURSES
658 "uUg:"
659 #endif
660 );
662 if (optchar == -1)
663 break;
665 switch (optchar)
666 {
667 case '4':
668 case '6':
669 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
670 break;
672 case 'c':
673 {
674 int new_count;
675 new_count = atoi (optarg);
676 if (new_count > 0)
677 {
678 opt_count = new_count;
680 if ((opt_percentile < 0.0) && (opt_count < 20))
681 opt_percentile = 100.0 * (opt_count - 1) / opt_count;
682 }
683 else
684 fprintf(stderr, "Ignoring invalid count: %s\n",
685 optarg);
686 }
687 break;
689 case 'f':
690 {
691 if (opt_filename != NULL)
692 free (opt_filename);
693 opt_filename = strdup (optarg);
694 }
695 break;
697 case 'i':
698 {
699 double new_interval;
700 new_interval = atof (optarg);
701 if (new_interval < 0.001)
702 fprintf (stderr, "Ignoring invalid interval: %s\n",
703 optarg);
704 else
705 opt_interval = new_interval;
706 }
707 break;
709 case 'w':
710 {
711 char *endp = NULL;
712 double t = strtod (optarg, &endp);
713 if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0))
714 opt_timeout = t;
715 else
716 fprintf (stderr, "Ignoring invalid timeout: %s\n",
717 optarg);
718 }
719 break;
721 case 'I':
722 {
723 if (opt_srcaddr != NULL)
724 free (opt_srcaddr);
725 opt_srcaddr = strdup (optarg);
726 }
727 break;
729 case 'D':
730 opt_device = optarg;
731 break;
733 case 'm':
734 opt_mark = optarg;
735 break;
737 case 't':
738 {
739 int new_send_ttl;
740 new_send_ttl = atoi (optarg);
741 if ((new_send_ttl > 0) && (new_send_ttl < 256))
742 opt_send_ttl = new_send_ttl;
743 else
744 fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
745 optarg);
746 break;
747 }
749 case 'Q':
750 set_opt_send_qos (optarg);
751 break;
753 case 'O':
754 {
755 free (opt_outfile);
756 opt_outfile = strdup (optarg);
757 }
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
794 case 'b':
795 opt_bell = 1;
796 break;
798 case 'Z':
799 {
800 char *endptr = NULL;
801 double tmp;
803 errno = 0;
804 tmp = strtod (optarg, &endptr);
805 if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0))
806 {
807 fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg);
808 fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n");
809 }
810 else
811 opt_exit_status_threshold = tmp / 100.0;
813 break;
814 }
816 case 'h':
817 usage_exit (argv[0], 0);
818 break;
820 default:
821 usage_exit (argv[0], 1);
822 }
823 }
825 if (opt_percentile <= 0.0)
826 opt_percentile = OPING_DEFAULT_PERCENTILE;
828 return (optind);
829 } /* }}} read_options */
831 static void time_normalize (struct timespec *ts) /* {{{ */
832 {
833 while (ts->tv_nsec < 0)
834 {
835 if (ts->tv_sec == 0)
836 {
837 ts->tv_nsec = 0;
838 return;
839 }
841 ts->tv_sec -= 1;
842 ts->tv_nsec += 1000000000;
843 }
845 while (ts->tv_nsec >= 1000000000)
846 {
847 ts->tv_sec += 1;
848 ts->tv_nsec -= 1000000000;
849 }
850 } /* }}} void time_normalize */
852 static void time_calc (struct timespec *ts_dest, /* {{{ */
853 const struct timespec *ts_int,
854 const struct timeval *tv_begin,
855 const struct timeval *tv_end)
856 {
857 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
858 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
859 time_normalize (ts_dest);
861 /* Assure that `(begin + interval) > end'.
862 * This may seem overly complicated, but `tv_sec' is of type `time_t'
863 * which may be `unsigned. *sigh* */
864 if ((tv_end->tv_sec > ts_dest->tv_sec)
865 || ((tv_end->tv_sec == ts_dest->tv_sec)
866 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
867 {
868 ts_dest->tv_sec = 0;
869 ts_dest->tv_nsec = 0;
870 return;
871 }
873 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
874 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
875 time_normalize (ts_dest);
876 } /* }}} void time_calc */
878 #if USE_NCURSES
879 static _Bool has_utf8() /* {{{ */
880 {
881 # if HAVE_NCURSESW_NCURSES_H
882 if (!opt_utf8)
883 {
884 /* Automatically determine */
885 if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
886 opt_utf8 = 2;
887 else
888 opt_utf8 = 1;
889 }
890 return ((_Bool) (opt_utf8 - 1));
891 # else
892 return (0);
893 # endif
894 } /* }}} _Bool has_utf8 */
896 static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */
897 {
898 uint32_t *counters;
899 double *ratios;
900 size_t i;
901 size_t x_max;
902 size_t x;
904 clean_history (ctx);
906 if (ctx->history_received == 0)
907 return (ENOENT);
909 x_max = (size_t) getmaxx (ctx->window);
910 if (x_max <= 8)
911 return (EINVAL);
912 x_max -= 4;
914 counters = calloc (x_max, sizeof (*counters));
915 ratios = calloc (x_max, sizeof (*ratios));
917 /* Bucketize */
918 for (i = 0; i < ctx->history_received; i++)
919 {
920 double latency = ctx->history_by_value[i] / 1000.0;
921 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
923 if (index >= x_max)
924 index = x_max - 1;
926 counters[index]++;
927 }
929 /* Sum and calc ratios */
930 ratios[0] = ((double) counters[0]) / ((double) ctx->history_received);
931 for (x = 1; x < x_max; x++)
932 {
933 counters[x] += counters[x - 1];
934 ratios[x] = ((double) counters[x]) / ((double) ctx->history_received);
935 }
937 for (x = 0; x < x_max; x++)
938 {
939 int symbol = ' ';
940 _Bool reverse = 0;
942 if (x == 0)
943 {
944 if (ratios[x] >= 0.5)
945 {
946 symbol = BOXPLOT_MEDIAN;
947 reverse = 1;
948 }
949 else if (ratios[x] > 0.25)
950 {
951 symbol = BOXPLOT_BOX;
952 reverse = 1;
953 }
954 else if (ratios[x] > 0.025)
955 symbol = BOXPLOT_WHISKER_BAR;
956 else
957 symbol = ' '; /* NOP */
958 }
959 else /* (x != 0) */
960 {
961 if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5))
962 {
963 symbol = BOXPLOT_MEDIAN;
964 reverse = 1;
965 }
966 else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75))
967 || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75)))
968 {
969 symbol = BOXPLOT_BOX;
970 reverse = 1;
971 }
972 else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025))
973 {
974 if (ratios[x - 1] < 0.025)
975 symbol = BOXPLOT_WHISKER_LEFT_END;
976 else
977 symbol = BOXPLOT_WHISKER_BAR;
978 }
979 else if ((ratios[x] > .5) && (ratios[x] < 0.975))
980 {
981 symbol = BOXPLOT_WHISKER_BAR;
982 }
983 else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975))
984 symbol = BOXPLOT_WHISKER_RIGHT_END;
985 }
987 if (reverse)
988 wattron (ctx->window, A_REVERSE);
989 mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
990 // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
991 if (reverse)
992 wattroff (ctx->window, A_REVERSE);
993 }
995 free (counters);
996 free (ratios);
997 return (0);
998 } /* }}} int update_graph_boxplot */
1000 static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */
1001 double latency, unsigned int sequence)
1002 {
1003 size_t x;
1004 size_t x_max;
1005 size_t history_offset;
1007 x_max = (size_t) getmaxx (ctx->window);
1008 if (x_max <= 4)
1009 return (EINVAL);
1010 x_max -= 4;
1012 /* Determine the first index in the history we need to draw
1013 * the graph. */
1014 history_offset = 0;
1015 if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */
1016 {
1017 if (ctx->history_index > x_max)
1018 history_offset = ctx->history_index - x_max;
1019 else /* wrap around */
1020 history_offset = ctx->history_index + ctx->history_size - x_max;
1021 }
1022 else /* window is larger than history */
1023 {
1024 if (ctx->history_index != ctx->history_size) /* no longer growing. */
1025 history_offset = ctx->history_index;
1026 else /* start-up */
1027 history_offset = 0;
1028 }
1030 for (x = 0; x < x_max; x++)
1031 {
1032 size_t index;
1033 double latency;
1035 int color = OPING_RED;
1036 char const *symbol = "!";
1037 int symbolc = '!';
1039 if (x >= ctx->history_size)
1040 {
1041 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1042 continue;
1043 }
1045 index = (history_offset + x) % ctx->history_size;
1046 latency = ctx->history_by_time[index];
1048 if (latency >= 0.0)
1049 {
1050 double ratio;
1052 size_t symbols_num = hist_symbols_acs_num;
1053 size_t colors_num = 1;
1055 size_t index_symbols;
1056 size_t index_colors;
1057 size_t intensity;
1059 /* latency is in milliseconds, opt_interval is in seconds. */
1060 ratio = (latency * 0.001) / opt_interval;
1061 if (ratio > 1) {
1062 ratio = 1.0;
1063 }
1065 if (has_utf8 ())
1066 symbols_num = hist_symbols_utf8_num;
1068 if (has_colors () == TRUE)
1069 colors_num = hist_colors_num;
1071 intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
1072 if (intensity >= (symbols_num * colors_num))
1073 intensity = (symbols_num * colors_num) - 1;
1075 index_symbols = intensity % symbols_num;
1076 assert (index_symbols < symbols_num);
1078 index_colors = intensity / symbols_num;
1079 assert (index_colors < colors_num);
1081 if (has_utf8())
1082 {
1083 color = hist_colors_utf8[index_colors];
1084 symbol = hist_symbols_utf8[index_symbols];
1085 }
1086 else
1087 {
1088 color = hist_colors_acs[index_colors];
1089 symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
1090 }
1091 }
1092 else /* if (!(latency >= 0.0)) */
1093 wattron (ctx->window, A_BOLD);
1095 if (has_colors () == TRUE)
1096 wattron (ctx->window, COLOR_PAIR(color));
1098 if (has_utf8())
1099 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol);
1100 else
1101 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc);
1103 if (has_colors () == TRUE)
1104 wattroff (ctx->window, COLOR_PAIR(color));
1106 /* Use negation here to handle NaN correctly. */
1107 if (!(latency >= 0.0))
1108 wattroff (ctx->window, A_BOLD);
1109 } /* for (x) */
1111 return (0);
1112 } /* }}} int update_graph_prettyping */
1114 static int update_graph_histogram (ping_context_t *ctx) /* {{{ */
1115 {
1116 uint32_t *counters;
1117 uint32_t *accumulated;
1118 uint32_t max;
1119 size_t i;
1120 size_t x_max;
1121 size_t x;
1123 size_t symbols_num = hist_symbols_acs_num;
1125 clean_history (ctx);
1127 if (ctx->history_received == 0)
1128 return (ENOENT);
1130 if (has_utf8 ())
1131 symbols_num = hist_symbols_utf8_num;
1133 x_max = (size_t) getmaxx (ctx->window);
1134 if (x_max <= 4)
1135 return (EINVAL);
1136 x_max -= 4;
1138 counters = calloc (x_max, sizeof (*counters));
1139 accumulated = calloc (x_max, sizeof (*accumulated));
1141 /* Bucketize */
1142 max = 0;
1143 for (i = 0; i < ctx->history_received; i++)
1144 {
1145 double latency = ctx->history_by_value[i] / 1000.0;
1146 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
1148 if (index >= x_max)
1149 index = x_max - 1;
1151 counters[index]++;
1152 if (max < counters[index])
1153 max = counters[index];
1154 }
1156 /* Sum */
1157 accumulated[0] = counters[0];
1158 for (x = 1; x < x_max; x++)
1159 accumulated[x] = counters[x] + accumulated[x - 1];
1161 /* Calculate ratios */
1162 for (x = 0; x < x_max; x++)
1163 {
1164 double height = ((double) counters[x]) / ((double) max);
1165 double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received);
1166 double ratio_prev = 0.0;
1167 size_t index;
1168 int color = 0;
1170 index = (size_t) (height * ((double) symbols_num));
1171 if (index >= symbols_num)
1172 index = symbols_num - 1;
1174 if (x > 0)
1175 ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received);
1177 if (has_colors () == TRUE)
1178 {
1179 if ((ratio_this <= threshold_green)
1180 || ((ratio_prev < threshold_green)
1181 && (ratio_this > threshold_green)))
1182 color = OPING_GREEN;
1183 else if ((ratio_this <= threshold_yellow)
1184 || ((ratio_prev < threshold_yellow)
1185 && (ratio_this > threshold_yellow)))
1186 color = OPING_YELLOW;
1187 else
1188 color = OPING_RED;
1190 wattron (ctx->window, COLOR_PAIR(color));
1191 }
1193 if (counters[x] == 0)
1194 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1195 else if (has_utf8 ())
1196 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2,
1197 hist_symbols_utf8[index]);
1198 else
1199 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2,
1200 hist_symbols_acs[index] | A_ALTCHARSET);
1202 if (has_colors () == TRUE)
1203 wattroff (ctx->window, COLOR_PAIR(color));
1205 }
1207 free (accumulated);
1208 return (0);
1209 } /* }}} int update_graph_histogram */
1211 static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
1212 {
1213 double latency = -1.0;
1214 size_t buffer_len = sizeof (latency);
1216 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1217 &latency, &buffer_len);
1219 unsigned int sequence = 0;
1220 buffer_len = sizeof (sequence);
1221 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1222 &sequence, &buffer_len);
1225 if ((ctx == NULL) || (ctx->window == NULL))
1226 return (EINVAL);
1228 /* werase (ctx->window); */
1230 box (ctx->window, 0, 0);
1231 wattron (ctx->window, A_BOLD);
1232 mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
1233 " %s ", ctx->host);
1234 wattroff (ctx->window, A_BOLD);
1235 wprintw (ctx->window, "ping statistics ");
1236 mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
1237 "%i packets transmitted, %i received, %.2f%% packet "
1238 "loss, time %.1fms",
1239 ctx->req_sent, ctx->req_rcvd,
1240 context_get_packet_loss (ctx),
1241 ctx->latency_total);
1242 if (ctx->req_rcvd != 0)
1243 {
1244 double min;
1245 double median;
1246 double max;
1247 double percentile;
1249 min = percentile_to_latency (ctx, 0.0);
1250 median = percentile_to_latency (ctx, 50.0);
1251 max = percentile_to_latency (ctx, 100.0);
1252 percentile = percentile_to_latency (ctx, opt_percentile);
1254 mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
1255 "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ",
1256 min, median, opt_percentile, percentile, max);
1257 }
1259 if (opt_show_graph == 1)
1260 update_graph_prettyping (ctx, latency, sequence);
1261 else if (opt_show_graph == 2)
1262 update_graph_histogram (ctx);
1263 else if (opt_show_graph == 3)
1264 update_graph_boxplot (ctx);
1266 wrefresh (ctx->window);
1268 return (0);
1269 } /* }}} int update_stats_from_context */
1271 static int on_resize (pingobj_t *ping) /* {{{ */
1272 {
1273 pingobj_iter_t *iter;
1274 int width = 0;
1275 int height = 0;
1276 int main_win_height;
1277 int box_height = (opt_show_graph == 0) ? 4 : 5;
1279 getmaxyx (stdscr, height, width);
1280 if ((height < 1) || (width < 1))
1281 return (EINVAL);
1283 main_win_height = height - (box_height * host_num);
1284 wresize (main_win, main_win_height, /* width = */ width);
1285 /* Allow scrolling */
1286 scrollok (main_win, TRUE);
1287 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1288 /* Allow hardware accelerated scrolling. */
1289 idlok (main_win, TRUE);
1290 wrefresh (main_win);
1292 for (iter = ping_iterator_get (ping);
1293 iter != NULL;
1294 iter = ping_iterator_next (iter))
1295 {
1296 ping_context_t *context;
1298 context = ping_iterator_get_context (iter);
1299 if (context == NULL)
1300 continue;
1302 if (context->window != NULL)
1303 {
1304 delwin (context->window);
1305 context->window = NULL;
1306 }
1307 context->window = newwin (/* height = */ box_height,
1308 /* width = */ width,
1309 /* y = */ main_win_height + (box_height * context->index),
1310 /* x = */ 0);
1311 }
1313 return (0);
1314 } /* }}} */
1316 static int check_resize (pingobj_t *ping) /* {{{ */
1317 {
1318 int need_resize = 0;
1320 while (42)
1321 {
1322 int key = wgetch (stdscr);
1323 if (key == ERR)
1324 break;
1325 else if (key == KEY_RESIZE)
1326 need_resize = 1;
1327 else if (key == 'g')
1328 {
1329 if (opt_show_graph == 3)
1330 opt_show_graph = 1;
1331 else if (opt_show_graph > 0)
1332 opt_show_graph++;
1333 }
1334 }
1336 if (need_resize)
1337 return (on_resize (ping));
1338 else
1339 return (0);
1340 } /* }}} int check_resize */
1342 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1343 {
1344 pingobj_iter_t *iter;
1345 int width = 0;
1346 int height = 0;
1347 int main_win_height;
1348 int box_height = (opt_show_graph == 0) ? 4 : 5;
1350 initscr ();
1351 cbreak ();
1352 noecho ();
1353 nodelay (stdscr, TRUE);
1355 getmaxyx (stdscr, height, width);
1356 if ((height < 1) || (width < 1))
1357 return (EINVAL);
1359 if (has_colors () == TRUE)
1360 {
1361 start_color ();
1362 init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
1363 init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
1364 init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
1365 init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
1366 init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
1367 init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
1368 }
1370 main_win_height = height - (box_height * host_num);
1371 main_win = newwin (/* height = */ main_win_height,
1372 /* width = */ width,
1373 /* y = */ 0, /* x = */ 0);
1374 /* Allow scrolling */
1375 scrollok (main_win, TRUE);
1376 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1377 /* Allow hardware accelerated scrolling. */
1378 idlok (main_win, TRUE);
1379 wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
1380 wrefresh (main_win);
1382 for (iter = ping_iterator_get (ping);
1383 iter != NULL;
1384 iter = ping_iterator_next (iter))
1385 {
1386 ping_context_t *context;
1388 context = ping_iterator_get_context (iter);
1389 if (context == NULL)
1390 continue;
1392 if (context->window != NULL)
1393 {
1394 delwin (context->window);
1395 context->window = NULL;
1396 }
1397 context->window = newwin (/* height = */ box_height,
1398 /* width = */ width,
1399 /* y = */ main_win_height + (box_height * context->index),
1400 /* x = */ 0);
1401 }
1404 /* Don't know what good this does exactly, but without this code
1405 * "check_resize" will be called right after startup and *somehow*
1406 * this leads to display errors. If we purge all initial characters
1407 * here, the problem goes away. "wgetch" is non-blocking due to
1408 * "nodelay" (see above). */
1409 while (wgetch (stdscr) != ERR)
1410 {
1411 /* eat up characters */;
1412 }
1414 return (0);
1415 } /* }}} int pre_loop_hook */
1417 static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
1418 {
1419 return (check_resize (ping));
1420 } /* }}} int pre_sleep_hook */
1422 static int post_sleep_hook (pingobj_t *ping) /* {{{ */
1423 {
1424 return (check_resize (ping));
1425 } /* }}} int pre_sleep_hook */
1426 #else /* if !USE_NCURSES */
1427 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1428 {
1429 pingobj_iter_t *iter;
1431 for (iter = ping_iterator_get (ping);
1432 iter != NULL;
1433 iter = ping_iterator_next (iter))
1434 {
1435 ping_context_t *ctx;
1436 size_t buffer_size;
1438 ctx = ping_iterator_get_context (iter);
1439 if (ctx == NULL)
1440 continue;
1442 buffer_size = 0;
1443 ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
1445 printf ("PING %s (%s) %zu bytes of data.\n",
1446 ctx->host, ctx->addr, buffer_size);
1447 }
1449 return (0);
1450 } /* }}} int pre_loop_hook */
1452 static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1453 {
1454 fflush (stdout);
1456 return (0);
1457 } /* }}} int pre_sleep_hook */
1459 static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1460 {
1461 return (0);
1462 } /* }}} int post_sleep_hook */
1463 #endif
1465 static void update_context (ping_context_t *ctx, double latency) /* {{{ */
1466 {
1467 ctx->req_sent++;
1469 if (latency > 0.0)
1470 {
1471 ctx->req_rcvd++;
1472 ctx->latency_total += latency;
1473 }
1474 else
1475 {
1476 latency = NAN;
1477 }
1479 ctx->history_by_time[ctx->history_index] = latency;
1481 ctx->history_dirty = 1;
1483 /* Update index and size. */
1484 ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX;
1485 if (ctx->history_size < HISTORY_SIZE_MAX)
1486 ctx->history_size++;
1487 } /* }}} void update_context */
1489 static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
1490 __attribute__((unused)) int index)
1491 {
1492 double latency;
1493 unsigned int sequence;
1494 int recv_ttl;
1495 uint8_t recv_qos;
1496 char recv_qos_str[16];
1497 size_t buffer_len;
1498 size_t data_len;
1499 ping_context_t *context;
1501 latency = -1.0;
1502 buffer_len = sizeof (latency);
1503 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1504 &latency, &buffer_len);
1506 sequence = 0;
1507 buffer_len = sizeof (sequence);
1508 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1509 &sequence, &buffer_len);
1511 recv_ttl = -1;
1512 buffer_len = sizeof (recv_ttl);
1513 ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
1514 &recv_ttl, &buffer_len);
1516 recv_qos = 0;
1517 buffer_len = sizeof (recv_qos);
1518 ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
1519 &recv_qos, &buffer_len);
1521 data_len = 0;
1522 ping_iterator_get_info (iter, PING_INFO_DATA,
1523 NULL, &data_len);
1525 context = (ping_context_t *) ping_iterator_get_context (iter);
1527 #if USE_NCURSES
1528 # define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
1529 #else
1530 # define HOST_PRINTF(...) printf(__VA_ARGS__)
1531 #endif
1533 update_context (context, latency);
1535 if (latency > 0.0)
1536 {
1537 #if USE_NCURSES
1538 if (has_colors () == TRUE)
1539 {
1540 double ratio;
1541 int color = OPING_GREEN;
1543 ratio = latency_to_ratio (context, latency);
1544 if (ratio < threshold_green)
1545 color = OPING_GREEN;
1546 else if (ratio < threshold_yellow)
1547 color = OPING_YELLOW;
1548 else
1549 color = OPING_RED;
1551 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1552 data_len, context->host, context->addr,
1553 sequence, recv_ttl,
1554 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1555 if ((recv_qos != 0) || (opt_send_qos != 0))
1556 {
1557 HOST_PRINTF ("qos=%s ",
1558 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1559 }
1560 HOST_PRINTF ("time=");
1561 wattron (main_win, COLOR_PAIR(color));
1562 HOST_PRINTF ("%.2f", latency);
1563 wattroff (main_win, COLOR_PAIR(color));
1564 HOST_PRINTF (" ms\n");
1565 }
1566 else
1567 {
1568 #endif
1569 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1570 data_len,
1571 context->host, context->addr,
1572 sequence, recv_ttl);
1573 if ((recv_qos != 0) || (opt_send_qos != 0))
1574 {
1575 HOST_PRINTF ("qos=%s ",
1576 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1577 }
1578 HOST_PRINTF ("time=%.2f ms\n", latency);
1579 #if USE_NCURSES
1580 }
1581 #endif
1582 if (opt_bell) {
1583 #if USE_NCURSES
1584 beep();
1585 #else
1586 HOST_PRINTF ("\a");
1587 #endif
1588 }
1589 }
1590 else /* if (!(latency > 0.0)) */
1591 {
1592 #if USE_NCURSES
1593 if (has_colors () == TRUE)
1594 {
1595 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
1596 context->host, context->addr,
1597 sequence);
1598 wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1599 HOST_PRINTF ("timeout");
1600 wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1601 HOST_PRINTF ("\n");
1602 }
1603 else
1604 {
1605 #endif
1606 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
1607 context->host, context->addr,
1608 sequence);
1609 #if USE_NCURSES
1610 }
1611 #endif
1612 }
1614 if (outfile != NULL)
1615 {
1616 struct timespec ts = { 0, 0 };
1618 if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
1619 {
1620 double t = ((double) ts.tv_sec) + (((double) ts.tv_nsec) / 1000000000.0);
1622 if ((sequence % 32) == 0)
1623 fprintf (outfile, "#time,host,latency[ms]\n");
1625 fprintf (outfile, "%.3f,\"%s\",%.2f\n", t, context->host, latency);
1626 }
1627 }
1629 #if USE_NCURSES
1630 update_stats_from_context (context, iter);
1631 wrefresh (main_win);
1632 #endif
1633 } /* }}} void update_host_hook */
1635 /* Prints statistics for each host, cleans up the contexts and returns the
1636 * number of hosts which failed to return more than the fraction
1637 * opt_exit_status_threshold of pings. */
1638 static int post_loop_hook (pingobj_t *ping) /* {{{ */
1639 {
1640 pingobj_iter_t *iter;
1641 int failure_count = 0;
1643 #if USE_NCURSES
1644 endwin ();
1645 #endif
1647 for (iter = ping_iterator_get (ping);
1648 iter != NULL;
1649 iter = ping_iterator_next (iter))
1650 {
1651 ping_context_t *context;
1653 context = ping_iterator_get_context (iter);
1655 printf ("\n--- %s ping statistics ---\n"
1656 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
1657 context->host, context->req_sent, context->req_rcvd,
1658 context_get_packet_loss (context),
1659 context->latency_total);
1661 {
1662 double pct_failed = 1.0 - (((double) context->req_rcvd)
1663 / ((double) context->req_sent));
1664 if (pct_failed > opt_exit_status_threshold)
1665 failure_count++;
1666 }
1668 if (context->req_rcvd != 0)
1669 {
1670 double min;
1671 double median;
1672 double max;
1673 double percentile;
1675 min = percentile_to_latency (context, 0.0);
1676 median = percentile_to_latency (context, 50.0);
1677 max = percentile_to_latency (context, 100.0);
1678 percentile = percentile_to_latency (context, opt_percentile);
1680 printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n",
1681 min, median, opt_percentile, percentile, max);
1682 }
1684 ping_iterator_set_context (iter, NULL);
1685 context_destroy (context);
1686 }
1688 return (failure_count);
1689 } /* }}} int post_loop_hook */
1691 int main (int argc, char **argv) /* {{{ */
1692 {
1693 pingobj_t *ping;
1694 pingobj_iter_t *iter;
1696 struct sigaction sigint_action;
1698 struct timeval tv_begin;
1699 struct timeval tv_end;
1700 struct timespec ts_wait;
1701 struct timespec ts_int;
1703 int optind;
1704 int i;
1705 int status;
1706 #if _POSIX_SAVED_IDS
1707 uid_t saved_set_uid;
1709 /* Save the old effective user id */
1710 saved_set_uid = geteuid ();
1711 /* Set the effective user ID to the real user ID without changing the
1712 * saved set-user ID */
1713 status = seteuid (getuid ());
1714 if (status != 0)
1715 {
1716 fprintf (stderr, "Temporarily dropping privileges "
1717 "failed: %s\n", strerror (errno));
1718 exit (EXIT_FAILURE);
1719 }
1720 #endif
1722 setlocale(LC_ALL, "");
1723 optind = read_options (argc, argv);
1725 #if !_POSIX_SAVED_IDS
1726 /* Cannot temporarily drop privileges -> reject every file but "-". */
1727 if ((opt_filename != NULL)
1728 && (strcmp ("-", opt_filename) != 0)
1729 && (getuid () != geteuid ()))
1730 {
1731 fprintf (stderr, "Your real and effective user IDs don't "
1732 "match. Reading from a file (option '-f')\n"
1733 "is therefore too risky. You can still read "
1734 "from STDIN using '-f -' if you like.\n"
1735 "Sorry.\n");
1736 exit (EXIT_FAILURE);
1737 }
1738 #endif
1740 if ((optind >= argc) && (opt_filename == NULL)) {
1741 usage_exit (argv[0], 1);
1742 }
1744 if ((ping = ping_construct ()) == NULL)
1745 {
1746 fprintf (stderr, "ping_construct failed\n");
1747 return (1);
1748 }
1750 if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
1751 {
1752 fprintf (stderr, "Setting TTL to %i failed: %s\n",
1753 opt_send_ttl, ping_get_error (ping));
1754 }
1756 if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
1757 {
1758 fprintf (stderr, "Setting TOS to %i failed: %s\n",
1759 opt_send_qos, ping_get_error (ping));
1760 }
1762 {
1763 double temp_sec;
1764 double temp_nsec;
1766 temp_nsec = modf (opt_interval, &temp_sec);
1767 ts_int.tv_sec = (time_t) temp_sec;
1768 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
1770 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
1771 }
1773 if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0)
1774 {
1775 fprintf (stderr, "Setting timeout failed: %s\n",
1776 ping_get_error (ping));
1777 }
1779 if (opt_addrfamily != PING_DEF_AF)
1780 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
1782 if (opt_srcaddr != NULL)
1783 {
1784 if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
1785 {
1786 fprintf (stderr, "Setting source address failed: %s\n",
1787 ping_get_error (ping));
1788 }
1789 }
1791 if (opt_device != NULL)
1792 {
1793 if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
1794 {
1795 fprintf (stderr, "Setting device failed: %s\n",
1796 ping_get_error (ping));
1797 }
1798 }
1800 if (opt_mark != NULL)
1801 {
1802 char *endp = NULL;
1803 int mark = (int) strtol (opt_mark, &endp, /* base = */ 0);
1804 if ((opt_mark[0] != 0) && (endp != NULL) && (*endp == 0))
1805 {
1806 if (ping_setopt(ping, PING_OPT_MARK, (void*)(&mark)) != 0)
1807 {
1808 fprintf (stderr, "Setting mark failed: %s\n",
1809 ping_get_error (ping));
1810 }
1811 }
1812 else
1813 {
1814 fprintf(stderr, "Ignoring invalid mark: %s\n", optarg);
1815 }
1816 }
1818 if (opt_filename != NULL)
1819 {
1820 FILE *infile;
1821 char line[256];
1822 char host[256];
1824 if (strcmp (opt_filename, "-") == 0)
1825 /* Open STDIN */
1826 infile = fdopen(0, "r");
1827 else
1828 infile = fopen(opt_filename, "r");
1830 if (infile == NULL)
1831 {
1832 fprintf (stderr, "Opening %s failed: %s\n",
1833 (strcmp (opt_filename, "-") == 0)
1834 ? "STDIN" : opt_filename,
1835 strerror(errno));
1836 return (1);
1837 }
1839 #if _POSIX_SAVED_IDS
1840 /* Regain privileges */
1841 status = seteuid (saved_set_uid);
1842 if (status != 0)
1843 {
1844 fprintf (stderr, "Temporarily re-gaining privileges "
1845 "failed: %s\n", strerror (errno));
1846 exit (EXIT_FAILURE);
1847 }
1848 #endif
1850 while (fgets(line, sizeof(line), infile))
1851 {
1852 /* Strip whitespace */
1853 if (sscanf(line, "%s", host) != 1)
1854 continue;
1856 if ((host[0] == 0) || (host[0] == '#'))
1857 continue;
1859 if (ping_host_add(ping, host) < 0)
1860 {
1861 const char *errmsg = ping_get_error (ping);
1863 fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
1864 continue;
1865 }
1866 else
1867 {
1868 host_num++;
1869 }
1870 }
1872 #if _POSIX_SAVED_IDS
1873 /* Drop privileges */
1874 status = seteuid (getuid ());
1875 if (status != 0)
1876 {
1877 fprintf (stderr, "Temporarily dropping privileges "
1878 "failed: %s\n", strerror (errno));
1879 exit (EXIT_FAILURE);
1880 }
1881 #endif
1883 fclose(infile);
1884 }
1886 #if _POSIX_SAVED_IDS
1887 /* Regain privileges */
1888 status = seteuid (saved_set_uid);
1889 if (status != 0)
1890 {
1891 fprintf (stderr, "Temporarily re-gaining privileges "
1892 "failed: %s\n", strerror (errno));
1893 exit (EXIT_FAILURE);
1894 }
1895 #endif
1897 for (i = optind; i < argc; i++)
1898 {
1899 if (ping_host_add (ping, argv[i]) < 0)
1900 {
1901 const char *errmsg = ping_get_error (ping);
1903 fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
1904 continue;
1905 }
1906 else
1907 {
1908 host_num++;
1909 }
1910 }
1912 /* Permanently drop root privileges if we're setuid-root. */
1913 status = setuid (getuid ());
1914 if (status != 0)
1915 {
1916 fprintf (stderr, "Dropping privileges failed: %s\n",
1917 strerror (errno));
1918 exit (EXIT_FAILURE);
1919 }
1921 if (host_num == 0)
1922 exit (EXIT_FAILURE);
1924 #if _POSIX_SAVED_IDS
1925 saved_set_uid = (uid_t) -1;
1926 #endif
1928 if (opt_outfile != NULL)
1929 {
1930 outfile = fopen (opt_outfile, "a");
1931 if (outfile == NULL)
1932 {
1933 fprintf (stderr, "opening \"%s\" failed: %s\n",
1934 opt_outfile, strerror (errno));
1935 exit (EXIT_FAILURE);
1936 }
1937 }
1939 ping_initialize_contexts (ping);
1941 if (i == 0)
1942 return (1);
1944 memset (&sigint_action, '\0', sizeof (sigint_action));
1945 sigint_action.sa_handler = sigint_handler;
1946 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
1947 {
1948 perror ("sigaction");
1949 return (1);
1950 }
1952 pre_loop_hook (ping);
1954 while (opt_count != 0)
1955 {
1956 int index;
1957 int status;
1959 if (gettimeofday (&tv_begin, NULL) < 0)
1960 {
1961 perror ("gettimeofday");
1962 return (1);
1963 }
1965 status = ping_send (ping);
1966 if (status == -EINTR)
1967 {
1968 continue;
1969 }
1970 else if (status < 0)
1971 {
1972 fprintf (stderr, "ping_send failed: %s\n",
1973 ping_get_error (ping));
1974 return (1);
1975 }
1977 index = 0;
1978 for (iter = ping_iterator_get (ping);
1979 iter != NULL;
1980 iter = ping_iterator_next (iter))
1981 {
1982 update_host_hook (iter, index);
1983 index++;
1984 }
1986 pre_sleep_hook (ping);
1988 /* Don't sleep in the last iteration */
1989 if (opt_count == 1)
1990 break;
1992 if (gettimeofday (&tv_end, NULL) < 0)
1993 {
1994 perror ("gettimeofday");
1995 return (1);
1996 }
1998 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
2000 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
2001 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
2002 {
2003 if (errno == EINTR)
2004 {
2005 continue;
2006 }
2007 else
2008 {
2009 perror ("nanosleep");
2010 break;
2011 }
2012 }
2014 post_sleep_hook (ping);
2016 if (opt_count > 0)
2017 opt_count--;
2018 } /* while (opt_count != 0) */
2020 /* Returns the number of failed hosts according to -Z. */
2021 status = post_loop_hook (ping);
2023 ping_destroy (ping);
2025 if (outfile != NULL)
2026 {
2027 fclose (outfile);
2028 outfile = NULL;
2029 }
2031 if (status == 0)
2032 exit (EXIT_SUCCESS);
2033 else
2034 {
2035 if (status > 255)
2036 status = 255;
2037 exit (status);
2038 }
2039 } /* }}} int main */
2041 /* vim: set fdm=marker : */