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1 /**
2 * Object oriented C module to send ICMP and ICMPv6 `echo's.
3 * Copyright (C) 2006-2014 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_filename = NULL;
200 static int opt_count = -1;
201 static int opt_send_ttl = 64;
202 static uint8_t opt_send_qos = 0;
203 #define OPING_DEFAULT_PERCENTILE 95.0
204 static double opt_percentile = -1.0;
205 static double opt_exit_status_threshold = 1.0;
206 #if USE_NCURSES
207 static int opt_show_graph = 1;
208 static int opt_utf8 = 0;
209 #endif
211 static int host_num = 0;
213 #if USE_NCURSES
214 static WINDOW *main_win = NULL;
215 #endif
217 static void sigint_handler (int signal) /* {{{ */
218 {
219 /* Make compiler happy */
220 signal = 0;
221 /* Exit the loop */
222 opt_count = 0;
223 } /* }}} void sigint_handler */
225 static ping_context_t *context_create (void) /* {{{ */
226 {
227 ping_context_t *ret;
229 if ((ret = malloc (sizeof (ping_context_t))) == NULL)
230 return (NULL);
232 memset (ret, '\0', sizeof (ping_context_t));
234 ret->latency_total = 0.0;
236 #if USE_NCURSES
237 ret->window = NULL;
238 #endif
240 return (ret);
241 } /* }}} ping_context_t *context_create */
243 static void context_destroy (ping_context_t *context) /* {{{ */
244 {
245 if (context == NULL)
246 return;
248 #if USE_NCURSES
249 if (context->window != NULL)
250 {
251 delwin (context->window);
252 context->window = NULL;
253 }
254 #endif
256 free (context);
257 } /* }}} void context_destroy */
259 static int compare_double (void const *arg0, void const *arg1) /* {{{ */
260 {
261 double dbl0 = *((double *) arg0);
262 double dbl1 = *((double *) arg1);
264 if (isnan (dbl0))
265 {
266 if (isnan (dbl1))
267 return 0;
268 else
269 return 1;
270 }
271 else if (isnan (dbl1))
272 return -1;
273 else if (dbl0 < dbl1)
274 return -1;
275 else if (dbl0 > dbl1)
276 return 1;
277 else
278 return 0;
279 } /* }}} int compare_double */
281 static void clean_history (ping_context_t *ctx) /* {{{ */
282 {
283 size_t i;
285 if (!ctx->history_dirty)
286 return;
288 /* Copy all values from by_time to by_value. */
289 memcpy (ctx->history_by_value, ctx->history_by_time,
290 sizeof (ctx->history_by_time));
292 /* Sort all RTTs. */
293 qsort (ctx->history_by_value, ctx->history_size, sizeof
294 (ctx->history_by_value[0]), compare_double);
296 /* Update the number of received RTTs. */
297 ctx->history_received = 0;
298 for (i = 0; i < ctx->history_size; i++)
299 if (!isnan (ctx->history_by_value[i]))
300 ctx->history_received++;
302 /* Mark as clean. */
303 ctx->history_dirty = 0;
304 } /* }}} void clean_history */
306 static double percentile_to_latency (ping_context_t *ctx, /* {{{ */
307 double percentile)
308 {
309 size_t index;
311 clean_history (ctx);
313 /* Not a single packet was received successfully. */
314 if (ctx->history_received == 0)
315 return NAN;
317 if (percentile <= 0.0)
318 index = 0;
319 else if (percentile >= 100.0)
320 index = ctx->history_received - 1;
321 else
322 {
323 index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received));
324 assert (index > 0);
325 index--;
326 }
328 return (ctx->history_by_value[index]);
329 } /* }}} double percentile_to_latency */
331 #if USE_NCURSES
332 static double latency_to_ratio (ping_context_t *ctx, /* {{{ */
333 double latency)
334 {
335 size_t low;
336 size_t high;
337 size_t index;
339 clean_history (ctx);
341 /* Not a single packet was received successfully. */
342 if (ctx->history_received == 0)
343 return NAN;
345 low = 0;
346 high = ctx->history_received - 1;
348 if (latency < ctx->history_by_value[low])
349 return 0.0;
350 else if (latency >= ctx->history_by_value[high])
351 return 100.0;
353 /* Do a binary search for the latency. This will work even when the
354 * exact latency is not in the array. If the latency is in the array
355 * multiple times, "low" will be set to the index of the last
356 * occurrence. The value at index "high" will be larger than the
357 * searched for latency (assured by the above "if" block. */
358 while ((high - low) > 1)
359 {
360 index = (high + low) / 2;
362 if (ctx->history_by_value[index] > latency)
363 high = index;
364 else
365 low = index;
366 }
368 assert (ctx->history_by_value[high] > latency);
369 assert (ctx->history_by_value[low] <= latency);
371 if (ctx->history_by_value[low] == latency)
372 index = low;
373 else
374 index = high;
376 return (((double) (index + 1)) / ((double) ctx->history_received));
377 } /* }}} double latency_to_ratio */
378 #endif
380 static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
381 {
382 if (ctx == NULL)
383 return (-1.0);
385 if (ctx->req_sent < 1)
386 return (0.0);
388 return (100.0 * (ctx->req_sent - ctx->req_rcvd)
389 / ((double) ctx->req_sent));
390 } /* }}} double context_get_packet_loss */
392 static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
393 {
394 pingobj_iter_t *iter;
395 int index;
397 if (ping == NULL)
398 return (EINVAL);
400 index = 0;
401 for (iter = ping_iterator_get (ping);
402 iter != NULL;
403 iter = ping_iterator_next (iter))
404 {
405 ping_context_t *context;
406 size_t buffer_size;
408 context = context_create ();
409 context->index = index;
411 buffer_size = sizeof (context->host);
412 ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
414 buffer_size = sizeof (context->addr);
415 ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
417 ping_iterator_set_context (iter, (void *) context);
419 index++;
420 }
422 return (0);
423 } /* }}} int ping_initialize_contexts */
425 static void usage_exit (const char *name, int status) /* {{{ */
426 {
427 fprintf (stderr, "Usage: %s [OPTIONS] "
428 "-f filename | host [host [host ...]]\n"
430 "\nAvailable options:\n"
431 " -4|-6 force the use of IPv4 or IPv6\n"
432 " -c count number of ICMP packets to send\n"
433 " -i interval interval with which to send ICMP packets\n"
434 " -w timeout time to wait for replies, in seconds\n"
435 " -t ttl time to live for each ICMP packet\n"
436 " -Q qos Quality of Service (QoS) of outgoing packets\n"
437 " Use \"-Q help\" for a list of valid options.\n"
438 " -I srcaddr source address\n"
439 " -D device outgoing interface name\n"
440 " -f filename filename to read hosts from\n"
441 #if USE_NCURSES
442 " -u / -U force / disable UTF-8 output\n"
443 " -g graph graph type to draw\n"
444 #endif
445 " -P percent Report the n'th percentile of latency\n"
446 " -Z percent Exit with non-zero exit status if more than this percentage of\n"
447 " probes timed out. (default: never)\n"
449 "\noping "PACKAGE_VERSION", http://noping.cc/\n"
450 "by Florian octo Forster <ff@octo.it>\n"
451 "for contributions see `AUTHORS'\n",
452 name);
453 exit (status);
454 } /* }}} void usage_exit */
456 __attribute__((noreturn))
457 static void usage_qos_exit (const char *arg, int status) /* {{{ */
458 {
459 if (arg != 0)
460 fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
462 fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
463 "\n"
464 " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
465 "\n"
466 " be Best Effort (BE, default PHB).\n"
467 " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
468 " (low delay, low loss, low jitter)\n"
469 " va Voice Admit (VA) DSCP (RFC 5865).\n"
470 " (capacity-admitted traffic)\n"
471 " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
472 " For example: \"af12\" (class 1, precedence 2)\n"
473 " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
474 " For example: \"cs1\" (priority traffic)\n"
475 "\n"
476 " Type of Service (IPv4, RFC 1349, obsolete)\n"
477 "\n"
478 " lowdelay (%#04x) minimize delay\n"
479 " throughput (%#04x) maximize throughput\n"
480 " reliability (%#04x) maximize reliability\n"
481 " mincost (%#04x) minimize monetary cost\n"
482 "\n"
483 " Specify manually\n"
484 "\n"
485 " 0x00 - 0xff Hexadecimal numeric specification.\n"
486 " 0 - 255 Decimal numeric specification.\n"
487 "\n",
488 (unsigned int) IPTOS_LOWDELAY,
489 (unsigned int) IPTOS_THROUGHPUT,
490 (unsigned int) IPTOS_RELIABILITY,
491 (unsigned int) IPTOS_MINCOST);
493 exit (status);
494 } /* }}} void usage_qos_exit */
496 static int set_opt_send_qos (const char *opt) /* {{{ */
497 {
498 if (opt == NULL)
499 return (EINVAL);
501 if (strcasecmp ("help", opt) == 0)
502 usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
503 /* DiffServ (RFC 2474): */
504 /* - Best effort (BE) */
505 else if (strcasecmp ("be", opt) == 0)
506 opt_send_qos = 0;
507 /* - Expedited Forwarding (EF, RFC 3246) */
508 else if (strcasecmp ("ef", opt) == 0)
509 opt_send_qos = 0xB8; /* == 0x2E << 2 */
510 /* - Voice Admit (VA, RFC 5865) */
511 else if (strcasecmp ("va", opt) == 0)
512 opt_send_qos = 0xB0; /* == 0x2D << 2 */
513 /* - Assured Forwarding (AF, RFC 2597) */
514 else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
515 && (strlen (opt) == 4))
516 {
517 uint8_t dscp;
518 uint8_t class = 0;
519 uint8_t prec = 0;
521 /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
522 if (opt[2] == '1')
523 class = 1;
524 else if (opt[2] == '2')
525 class = 2;
526 else if (opt[2] == '3')
527 class = 3;
528 else if (opt[2] == '4')
529 class = 4;
530 else
531 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
533 /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
534 if (opt[3] == '1')
535 prec = 1;
536 else if (opt[3] == '2')
537 prec = 2;
538 else if (opt[3] == '3')
539 prec = 3;
540 else
541 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
543 dscp = (8 * class) + (2 * prec);
544 /* The lower two bits are used for Explicit Congestion Notification (ECN) */
545 opt_send_qos = dscp << 2;
546 }
547 /* - Class Selector (CS) */
548 else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
549 && (strlen (opt) == 3))
550 {
551 uint8_t class;
553 if ((opt[2] < '0') || (opt[2] > '7'))
554 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
556 /* Not exactly legal by the C standard, but I don't know of any
557 * system not supporting this hack. */
558 class = ((uint8_t) opt[2]) - ((uint8_t) '0');
559 opt_send_qos = class << 5;
560 }
561 /* Type of Service (RFC 1349) */
562 else if (strcasecmp ("lowdelay", opt) == 0)
563 opt_send_qos = IPTOS_LOWDELAY;
564 else if (strcasecmp ("throughput", opt) == 0)
565 opt_send_qos = IPTOS_THROUGHPUT;
566 else if (strcasecmp ("reliability", opt) == 0)
567 opt_send_qos = IPTOS_RELIABILITY;
568 else if (strcasecmp ("mincost", opt) == 0)
569 opt_send_qos = IPTOS_MINCOST;
570 /* Numeric value */
571 else
572 {
573 unsigned long value;
574 char *endptr;
576 errno = 0;
577 endptr = NULL;
578 value = strtoul (opt, &endptr, /* base = */ 0);
579 if ((errno != 0) || (endptr == opt)
580 || (endptr == NULL) || (*endptr != 0)
581 || (value > 0xff))
582 usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
584 opt_send_qos = (uint8_t) value;
585 }
587 return (0);
588 } /* }}} int set_opt_send_qos */
590 static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
591 {
592 uint8_t dscp;
593 uint8_t ecn;
594 char *dscp_str;
595 char *ecn_str;
597 dscp = qos >> 2;
598 ecn = qos & 0x03;
600 switch (dscp)
601 {
602 case 0x00: dscp_str = "be"; break;
603 case 0x2e: dscp_str = "ef"; break;
604 case 0x2d: dscp_str = "va"; break;
605 case 0x0a: dscp_str = "af11"; break;
606 case 0x0c: dscp_str = "af12"; break;
607 case 0x0e: dscp_str = "af13"; break;
608 case 0x12: dscp_str = "af21"; break;
609 case 0x14: dscp_str = "af22"; break;
610 case 0x16: dscp_str = "af23"; break;
611 case 0x1a: dscp_str = "af31"; break;
612 case 0x1c: dscp_str = "af32"; break;
613 case 0x1e: dscp_str = "af33"; break;
614 case 0x22: dscp_str = "af41"; break;
615 case 0x24: dscp_str = "af42"; break;
616 case 0x26: dscp_str = "af43"; break;
617 case 0x08: dscp_str = "cs1"; break;
618 case 0x10: dscp_str = "cs2"; break;
619 case 0x18: dscp_str = "cs3"; break;
620 case 0x20: dscp_str = "cs4"; break;
621 case 0x28: dscp_str = "cs5"; break;
622 case 0x30: dscp_str = "cs6"; break;
623 case 0x38: dscp_str = "cs7"; break;
624 default: dscp_str = NULL;
625 }
627 switch (ecn)
628 {
629 case 0x01: ecn_str = ",ecn(1)"; break;
630 case 0x02: ecn_str = ",ecn(0)"; break;
631 case 0x03: ecn_str = ",ce"; break;
632 default: ecn_str = "";
633 }
635 if (dscp_str == NULL)
636 snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
637 else
638 snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
639 buffer[buffer_size - 1] = 0;
641 return (buffer);
642 } /* }}} char *format_qos */
644 static int read_options (int argc, char **argv) /* {{{ */
645 {
646 int optchar;
648 while (1)
649 {
650 optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:P:w:"
651 #if USE_NCURSES
652 "uUg:"
653 #endif
654 );
656 if (optchar == -1)
657 break;
659 switch (optchar)
660 {
661 case '4':
662 case '6':
663 opt_addrfamily = (optchar == '4') ? AF_INET : AF_INET6;
664 break;
666 case 'c':
667 {
668 int new_count;
669 new_count = atoi (optarg);
670 if (new_count > 0)
671 {
672 opt_count = new_count;
674 if ((opt_percentile < 0.0) && (opt_count < 20))
675 opt_percentile = 100.0 * (opt_count - 1) / opt_count;
676 }
677 else
678 fprintf(stderr, "Ignoring invalid count: %s\n",
679 optarg);
680 }
681 break;
683 case 'f':
684 {
685 if (opt_filename != NULL)
686 free (opt_filename);
687 opt_filename = strdup (optarg);
688 }
689 break;
691 case 'i':
692 {
693 double new_interval;
694 new_interval = atof (optarg);
695 if (new_interval < 0.001)
696 fprintf (stderr, "Ignoring invalid interval: %s\n",
697 optarg);
698 else
699 opt_interval = new_interval;
700 }
701 break;
703 case 'w':
704 {
705 char *endp = NULL;
706 double t = strtod (optarg, &endp);
707 if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0))
708 opt_timeout = t;
709 else
710 fprintf (stderr, "Ignoring invalid timeout: %s\n",
711 optarg);
712 }
713 break;
715 case 'I':
716 {
717 if (opt_srcaddr != NULL)
718 free (opt_srcaddr);
719 opt_srcaddr = strdup (optarg);
720 }
721 break;
723 case 'D':
724 opt_device = optarg;
725 break;
727 case 't':
728 {
729 int new_send_ttl;
730 new_send_ttl = atoi (optarg);
731 if ((new_send_ttl > 0) && (new_send_ttl < 256))
732 opt_send_ttl = new_send_ttl;
733 else
734 fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
735 optarg);
736 break;
737 }
739 case 'Q':
740 set_opt_send_qos (optarg);
741 break;
743 case 'P':
744 {
745 double new_percentile;
746 new_percentile = atof (optarg);
747 if (isnan (new_percentile)
748 || (new_percentile < 0.1)
749 || (new_percentile > 100.0))
750 fprintf (stderr, "Ignoring invalid percentile: %s\n",
751 optarg);
752 else
753 opt_percentile = new_percentile;
754 }
755 break;
757 #if USE_NCURSES
758 case 'g':
759 if (strcasecmp ("none", optarg) == 0)
760 opt_show_graph = 0;
761 else if (strcasecmp ("prettyping", optarg) == 0)
762 opt_show_graph = 1;
763 else if (strcasecmp ("histogram", optarg) == 0)
764 opt_show_graph = 2;
765 else if (strcasecmp ("boxplot", optarg) == 0)
766 opt_show_graph = 3;
767 else
768 fprintf (stderr, "Unknown graph option: %s\n", optarg);
769 break;
771 case 'u':
772 opt_utf8 = 2;
773 break;
774 case 'U':
775 opt_utf8 = 1;
776 break;
777 #endif
779 case 'Z':
780 {
781 char *endptr = NULL;
782 double tmp;
784 errno = 0;
785 tmp = strtod (optarg, &endptr);
786 if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0))
787 {
788 fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg);
789 fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n");
790 }
791 else
792 opt_exit_status_threshold = tmp / 100.0;
794 break;
795 }
797 case 'h':
798 usage_exit (argv[0], 0);
799 break;
801 default:
802 usage_exit (argv[0], 1);
803 }
804 }
806 if (opt_percentile <= 0.0)
807 opt_percentile = OPING_DEFAULT_PERCENTILE;
809 return (optind);
810 } /* }}} read_options */
812 static void time_normalize (struct timespec *ts) /* {{{ */
813 {
814 while (ts->tv_nsec < 0)
815 {
816 if (ts->tv_sec == 0)
817 {
818 ts->tv_nsec = 0;
819 return;
820 }
822 ts->tv_sec -= 1;
823 ts->tv_nsec += 1000000000;
824 }
826 while (ts->tv_nsec >= 1000000000)
827 {
828 ts->tv_sec += 1;
829 ts->tv_nsec -= 1000000000;
830 }
831 } /* }}} void time_normalize */
833 static void time_calc (struct timespec *ts_dest, /* {{{ */
834 const struct timespec *ts_int,
835 const struct timeval *tv_begin,
836 const struct timeval *tv_end)
837 {
838 ts_dest->tv_sec = tv_begin->tv_sec + ts_int->tv_sec;
839 ts_dest->tv_nsec = (tv_begin->tv_usec * 1000) + ts_int->tv_nsec;
840 time_normalize (ts_dest);
842 /* Assure that `(begin + interval) > end'.
843 * This may seem overly complicated, but `tv_sec' is of type `time_t'
844 * which may be `unsigned. *sigh* */
845 if ((tv_end->tv_sec > ts_dest->tv_sec)
846 || ((tv_end->tv_sec == ts_dest->tv_sec)
847 && ((tv_end->tv_usec * 1000) > ts_dest->tv_nsec)))
848 {
849 ts_dest->tv_sec = 0;
850 ts_dest->tv_nsec = 0;
851 return;
852 }
854 ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
855 ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
856 time_normalize (ts_dest);
857 } /* }}} void time_calc */
859 #if USE_NCURSES
860 static _Bool has_utf8() /* {{{ */
861 {
862 # if HAVE_NCURSESW_NCURSES_H
863 if (!opt_utf8)
864 {
865 /* Automatically determine */
866 if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
867 opt_utf8 = 2;
868 else
869 opt_utf8 = 1;
870 }
871 return ((_Bool) (opt_utf8 - 1));
872 # else
873 return (0);
874 # endif
875 } /* }}} _Bool has_utf8 */
877 static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */
878 {
879 uint32_t *counters;
880 double *ratios;
881 size_t i;
882 size_t x_max;
883 size_t x;
885 clean_history (ctx);
887 if (ctx->history_received == 0)
888 return (ENOENT);
890 x_max = (size_t) getmaxx (ctx->window);
891 if (x_max <= 8)
892 return (EINVAL);
893 x_max -= 4;
895 counters = calloc (x_max, sizeof (*counters));
896 ratios = calloc (x_max, sizeof (*ratios));
898 /* Bucketize */
899 for (i = 0; i < ctx->history_received; i++)
900 {
901 double latency = ctx->history_by_value[i] / 1000.0;
902 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
904 if (index >= x_max)
905 index = x_max - 1;
907 counters[index]++;
908 }
910 /* Sum and calc ratios */
911 ratios[0] = ((double) counters[0]) / ((double) ctx->history_received);
912 for (x = 1; x < x_max; x++)
913 {
914 counters[x] += counters[x - 1];
915 ratios[x] = ((double) counters[x]) / ((double) ctx->history_received);
916 }
918 for (x = 0; x < x_max; x++)
919 {
920 int symbol = ' ';
921 _Bool reverse = 0;
923 if (x == 0)
924 {
925 if (ratios[x] >= 0.5)
926 {
927 symbol = BOXPLOT_MEDIAN;
928 reverse = 1;
929 }
930 else if (ratios[x] > 0.25)
931 {
932 symbol = BOXPLOT_BOX;
933 reverse = 1;
934 }
935 else if (ratios[x] > 0.025)
936 symbol = BOXPLOT_WHISKER_BAR;
937 else
938 symbol = ' '; /* NOP */
939 }
940 else /* (x != 0) */
941 {
942 if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5))
943 {
944 symbol = BOXPLOT_MEDIAN;
945 reverse = 1;
946 }
947 else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75))
948 || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75)))
949 {
950 symbol = BOXPLOT_BOX;
951 reverse = 1;
952 }
953 else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025))
954 {
955 if (ratios[x - 1] < 0.025)
956 symbol = BOXPLOT_WHISKER_LEFT_END;
957 else
958 symbol = BOXPLOT_WHISKER_BAR;
959 }
960 else if ((ratios[x] > .5) && (ratios[x] < 0.975))
961 {
962 symbol = BOXPLOT_WHISKER_BAR;
963 }
964 else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975))
965 symbol = BOXPLOT_WHISKER_RIGHT_END;
966 }
968 if (reverse)
969 wattron (ctx->window, A_REVERSE);
970 mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
971 // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
972 if (reverse)
973 wattroff (ctx->window, A_REVERSE);
974 }
976 free (counters);
977 free (ratios);
978 return (0);
979 } /* }}} int update_graph_boxplot */
981 static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */
982 double latency, unsigned int sequence)
983 {
984 size_t x;
985 size_t x_max;
986 size_t history_offset;
988 x_max = (size_t) getmaxx (ctx->window);
989 if (x_max <= 4)
990 return (EINVAL);
991 x_max -= 4;
993 /* Determine the first index in the history we need to draw
994 * the graph. */
995 history_offset = 0;
996 if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */
997 {
998 if (ctx->history_index > x_max)
999 history_offset = ctx->history_index - x_max;
1000 else /* wrap around */
1001 history_offset = ctx->history_index + ctx->history_size - x_max;
1002 }
1003 else /* window is larger than history */
1004 {
1005 if (ctx->history_index != ctx->history_size) /* no longer growing. */
1006 history_offset = ctx->history_index;
1007 else /* start-up */
1008 history_offset = 0;
1009 }
1011 for (x = 0; x < x_max; x++)
1012 {
1013 size_t index;
1014 double latency;
1016 int color = OPING_RED;
1017 char const *symbol = "!";
1018 int symbolc = '!';
1020 if (x >= ctx->history_size)
1021 {
1022 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1023 continue;
1024 }
1026 index = (history_offset + x) % ctx->history_size;
1027 latency = ctx->history_by_time[index];
1029 if (latency >= 0.0)
1030 {
1031 double ratio;
1033 size_t symbols_num = hist_symbols_acs_num;
1034 size_t colors_num = 1;
1036 size_t index_symbols;
1037 size_t index_colors;
1038 size_t intensity;
1040 /* latency is in milliseconds, opt_interval is in seconds. */
1041 ratio = (latency * 0.001) / opt_interval;
1042 if (ratio > 1) {
1043 ratio = 1.0;
1044 }
1046 if (has_utf8 ())
1047 symbols_num = hist_symbols_utf8_num;
1049 if (has_colors () == TRUE)
1050 colors_num = hist_colors_num;
1052 intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
1053 if (intensity >= (symbols_num * colors_num))
1054 intensity = (symbols_num * colors_num) - 1;
1056 index_symbols = intensity % symbols_num;
1057 assert (index_symbols < symbols_num);
1059 index_colors = intensity / symbols_num;
1060 assert (index_colors < colors_num);
1062 if (has_utf8())
1063 {
1064 color = hist_colors_utf8[index_colors];
1065 symbol = hist_symbols_utf8[index_symbols];
1066 }
1067 else
1068 {
1069 color = hist_colors_acs[index_colors];
1070 symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
1071 }
1072 }
1073 else /* if (!(latency >= 0.0)) */
1074 wattron (ctx->window, A_BOLD);
1076 if (has_colors () == TRUE)
1077 wattron (ctx->window, COLOR_PAIR(color));
1079 if (has_utf8())
1080 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol);
1081 else
1082 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc);
1084 if (has_colors () == TRUE)
1085 wattroff (ctx->window, COLOR_PAIR(color));
1087 /* Use negation here to handle NaN correctly. */
1088 if (!(latency >= 0.0))
1089 wattroff (ctx->window, A_BOLD);
1090 } /* for (x) */
1092 return (0);
1093 } /* }}} int update_graph_prettyping */
1095 static int update_graph_histogram (ping_context_t *ctx) /* {{{ */
1096 {
1097 uint32_t *counters;
1098 uint32_t *accumulated;
1099 uint32_t max;
1100 size_t i;
1101 size_t x_max;
1102 size_t x;
1104 size_t symbols_num = hist_symbols_acs_num;
1106 clean_history (ctx);
1108 if (ctx->history_received == 0)
1109 return (ENOENT);
1111 if (has_utf8 ())
1112 symbols_num = hist_symbols_utf8_num;
1114 x_max = (size_t) getmaxx (ctx->window);
1115 if (x_max <= 4)
1116 return (EINVAL);
1117 x_max -= 4;
1119 counters = calloc (x_max, sizeof (*counters));
1120 accumulated = calloc (x_max, sizeof (*accumulated));
1122 /* Bucketize */
1123 max = 0;
1124 for (i = 0; i < ctx->history_received; i++)
1125 {
1126 double latency = ctx->history_by_value[i] / 1000.0;
1127 size_t index = (size_t) (((double) x_max) * latency / opt_interval);
1129 if (index >= x_max)
1130 index = x_max - 1;
1132 counters[index]++;
1133 if (max < counters[index])
1134 max = counters[index];
1135 }
1137 /* Sum */
1138 accumulated[0] = counters[0];
1139 for (x = 1; x < x_max; x++)
1140 accumulated[x] = counters[x] + accumulated[x - 1];
1142 /* Calculate ratios */
1143 for (x = 0; x < x_max; x++)
1144 {
1145 double height = ((double) counters[x]) / ((double) max);
1146 double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received);
1147 double ratio_prev = 0.0;
1148 size_t index;
1149 int color = 0;
1151 index = (size_t) (height * ((double) symbols_num));
1152 if (index >= symbols_num)
1153 index = symbols_num - 1;
1155 if (x > 0)
1156 ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received);
1158 if (has_colors () == TRUE)
1159 {
1160 if ((ratio_this <= threshold_green)
1161 || ((ratio_prev < threshold_green)
1162 && (ratio_this > threshold_green)))
1163 color = OPING_GREEN;
1164 else if ((ratio_this <= threshold_yellow)
1165 || ((ratio_prev < threshold_yellow)
1166 && (ratio_this > threshold_yellow)))
1167 color = OPING_YELLOW;
1168 else
1169 color = OPING_RED;
1171 wattron (ctx->window, COLOR_PAIR(color));
1172 }
1174 if (counters[x] == 0)
1175 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
1176 else if (has_utf8 ())
1177 mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2,
1178 hist_symbols_utf8[index]);
1179 else
1180 mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2,
1181 hist_symbols_acs[index] | A_ALTCHARSET);
1183 if (has_colors () == TRUE)
1184 wattroff (ctx->window, COLOR_PAIR(color));
1186 }
1188 free (accumulated);
1189 return (0);
1190 } /* }}} int update_graph_histogram */
1192 static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
1193 {
1194 double latency = -1.0;
1195 size_t buffer_len = sizeof (latency);
1197 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1198 &latency, &buffer_len);
1200 unsigned int sequence = 0;
1201 buffer_len = sizeof (sequence);
1202 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1203 &sequence, &buffer_len);
1206 if ((ctx == NULL) || (ctx->window == NULL))
1207 return (EINVAL);
1209 /* werase (ctx->window); */
1211 box (ctx->window, 0, 0);
1212 wattron (ctx->window, A_BOLD);
1213 mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
1214 " %s ", ctx->host);
1215 wattroff (ctx->window, A_BOLD);
1216 wprintw (ctx->window, "ping statistics ");
1217 mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
1218 "%i packets transmitted, %i received, %.2f%% packet "
1219 "loss, time %.1fms",
1220 ctx->req_sent, ctx->req_rcvd,
1221 context_get_packet_loss (ctx),
1222 ctx->latency_total);
1223 if (ctx->req_rcvd != 0)
1224 {
1225 double min;
1226 double median;
1227 double max;
1228 double percentile;
1230 min = percentile_to_latency (ctx, 0.0);
1231 median = percentile_to_latency (ctx, 50.0);
1232 max = percentile_to_latency (ctx, 100.0);
1233 percentile = percentile_to_latency (ctx, opt_percentile);
1235 mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
1236 "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ",
1237 min, median, opt_percentile, percentile, max);
1238 }
1240 if (opt_show_graph == 1)
1241 update_graph_prettyping (ctx, latency, sequence);
1242 else if (opt_show_graph == 2)
1243 update_graph_histogram (ctx);
1244 else if (opt_show_graph == 3)
1245 update_graph_boxplot (ctx);
1247 wrefresh (ctx->window);
1249 return (0);
1250 } /* }}} int update_stats_from_context */
1252 static int on_resize (pingobj_t *ping) /* {{{ */
1253 {
1254 pingobj_iter_t *iter;
1255 int width = 0;
1256 int height = 0;
1257 int main_win_height;
1258 int box_height = (opt_show_graph == 0) ? 4 : 5;
1260 getmaxyx (stdscr, height, width);
1261 if ((height < 1) || (width < 1))
1262 return (EINVAL);
1264 main_win_height = height - (box_height * host_num);
1265 wresize (main_win, main_win_height, /* width = */ width);
1266 /* Allow scrolling */
1267 scrollok (main_win, TRUE);
1268 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1269 /* Allow hardware accelerated scrolling. */
1270 idlok (main_win, TRUE);
1271 wrefresh (main_win);
1273 for (iter = ping_iterator_get (ping);
1274 iter != NULL;
1275 iter = ping_iterator_next (iter))
1276 {
1277 ping_context_t *context;
1279 context = ping_iterator_get_context (iter);
1280 if (context == NULL)
1281 continue;
1283 if (context->window != NULL)
1284 {
1285 delwin (context->window);
1286 context->window = NULL;
1287 }
1288 context->window = newwin (/* height = */ box_height,
1289 /* width = */ width,
1290 /* y = */ main_win_height + (box_height * context->index),
1291 /* x = */ 0);
1292 }
1294 return (0);
1295 } /* }}} */
1297 static int check_resize (pingobj_t *ping) /* {{{ */
1298 {
1299 int need_resize = 0;
1301 while (42)
1302 {
1303 int key = wgetch (stdscr);
1304 if (key == ERR)
1305 break;
1306 else if (key == KEY_RESIZE)
1307 need_resize = 1;
1308 else if (key == 'g')
1309 {
1310 if (opt_show_graph == 3)
1311 opt_show_graph = 1;
1312 else if (opt_show_graph > 0)
1313 opt_show_graph++;
1314 }
1315 }
1317 if (need_resize)
1318 return (on_resize (ping));
1319 else
1320 return (0);
1321 } /* }}} int check_resize */
1323 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1324 {
1325 pingobj_iter_t *iter;
1326 int width = 0;
1327 int height = 0;
1328 int main_win_height;
1329 int box_height = (opt_show_graph == 0) ? 4 : 5;
1331 initscr ();
1332 cbreak ();
1333 noecho ();
1334 nodelay (stdscr, TRUE);
1336 getmaxyx (stdscr, height, width);
1337 if ((height < 1) || (width < 1))
1338 return (EINVAL);
1340 if (has_colors () == TRUE)
1341 {
1342 start_color ();
1343 init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
1344 init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
1345 init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
1346 init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
1347 init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
1348 init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
1349 }
1351 main_win_height = height - (box_height * host_num);
1352 main_win = newwin (/* height = */ main_win_height,
1353 /* width = */ width,
1354 /* y = */ 0, /* x = */ 0);
1355 /* Allow scrolling */
1356 scrollok (main_win, TRUE);
1357 /* wsetscrreg (main_win, 0, main_win_height - 1); */
1358 /* Allow hardware accelerated scrolling. */
1359 idlok (main_win, TRUE);
1360 wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
1361 wrefresh (main_win);
1363 for (iter = ping_iterator_get (ping);
1364 iter != NULL;
1365 iter = ping_iterator_next (iter))
1366 {
1367 ping_context_t *context;
1369 context = ping_iterator_get_context (iter);
1370 if (context == NULL)
1371 continue;
1373 if (context->window != NULL)
1374 {
1375 delwin (context->window);
1376 context->window = NULL;
1377 }
1378 context->window = newwin (/* height = */ box_height,
1379 /* width = */ width,
1380 /* y = */ main_win_height + (box_height * context->index),
1381 /* x = */ 0);
1382 }
1385 /* Don't know what good this does exactly, but without this code
1386 * "check_resize" will be called right after startup and *somehow*
1387 * this leads to display errors. If we purge all initial characters
1388 * here, the problem goes away. "wgetch" is non-blocking due to
1389 * "nodelay" (see above). */
1390 while (wgetch (stdscr) != ERR)
1391 {
1392 /* eat up characters */;
1393 }
1395 return (0);
1396 } /* }}} int pre_loop_hook */
1398 static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
1399 {
1400 return (check_resize (ping));
1401 } /* }}} int pre_sleep_hook */
1403 static int post_sleep_hook (pingobj_t *ping) /* {{{ */
1404 {
1405 return (check_resize (ping));
1406 } /* }}} int pre_sleep_hook */
1407 #else /* if !USE_NCURSES */
1408 static int pre_loop_hook (pingobj_t *ping) /* {{{ */
1409 {
1410 pingobj_iter_t *iter;
1412 for (iter = ping_iterator_get (ping);
1413 iter != NULL;
1414 iter = ping_iterator_next (iter))
1415 {
1416 ping_context_t *ctx;
1417 size_t buffer_size;
1419 ctx = ping_iterator_get_context (iter);
1420 if (ctx == NULL)
1421 continue;
1423 buffer_size = 0;
1424 ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
1426 printf ("PING %s (%s) %zu bytes of data.\n",
1427 ctx->host, ctx->addr, buffer_size);
1428 }
1430 return (0);
1431 } /* }}} int pre_loop_hook */
1433 static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1434 {
1435 fflush (stdout);
1437 return (0);
1438 } /* }}} int pre_sleep_hook */
1440 static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
1441 {
1442 return (0);
1443 } /* }}} int post_sleep_hook */
1444 #endif
1446 static void update_context (ping_context_t *ctx, double latency) /* {{{ */
1447 {
1448 ctx->req_sent++;
1450 if (latency > 0.0)
1451 {
1452 ctx->req_rcvd++;
1453 ctx->latency_total += latency;
1454 }
1455 else
1456 {
1457 latency = NAN;
1458 }
1460 ctx->history_by_time[ctx->history_index] = latency;
1462 ctx->history_dirty = 1;
1464 /* Update index and size. */
1465 ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX;
1466 if (ctx->history_size < HISTORY_SIZE_MAX)
1467 ctx->history_size++;
1468 } /* }}} void update_context */
1470 static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
1471 __attribute__((unused)) int index)
1472 {
1473 double latency;
1474 unsigned int sequence;
1475 int recv_ttl;
1476 uint8_t recv_qos;
1477 char recv_qos_str[16];
1478 size_t buffer_len;
1479 size_t data_len;
1480 ping_context_t *context;
1482 latency = -1.0;
1483 buffer_len = sizeof (latency);
1484 ping_iterator_get_info (iter, PING_INFO_LATENCY,
1485 &latency, &buffer_len);
1487 sequence = 0;
1488 buffer_len = sizeof (sequence);
1489 ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
1490 &sequence, &buffer_len);
1492 recv_ttl = -1;
1493 buffer_len = sizeof (recv_ttl);
1494 ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
1495 &recv_ttl, &buffer_len);
1497 recv_qos = 0;
1498 buffer_len = sizeof (recv_qos);
1499 ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
1500 &recv_qos, &buffer_len);
1502 data_len = 0;
1503 ping_iterator_get_info (iter, PING_INFO_DATA,
1504 NULL, &data_len);
1506 context = (ping_context_t *) ping_iterator_get_context (iter);
1508 #if USE_NCURSES
1509 # define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
1510 #else
1511 # define HOST_PRINTF(...) printf(__VA_ARGS__)
1512 #endif
1514 update_context (context, latency);
1516 if (latency > 0.0)
1517 {
1518 #if USE_NCURSES
1519 if (has_colors () == TRUE)
1520 {
1521 double ratio;
1522 int color = OPING_GREEN;
1524 ratio = latency_to_ratio (context, latency);
1525 if (ratio < threshold_green)
1526 color = OPING_GREEN;
1527 else if (ratio < threshold_yellow)
1528 color = OPING_YELLOW;
1529 else
1530 color = OPING_RED;
1532 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1533 data_len, context->host, context->addr,
1534 sequence, recv_ttl,
1535 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1536 if ((recv_qos != 0) || (opt_send_qos != 0))
1537 {
1538 HOST_PRINTF ("qos=%s ",
1539 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1540 }
1541 HOST_PRINTF ("time=");
1542 wattron (main_win, COLOR_PAIR(color));
1543 HOST_PRINTF ("%.2f", latency);
1544 wattroff (main_win, COLOR_PAIR(color));
1545 HOST_PRINTF (" ms\n");
1546 }
1547 else
1548 {
1549 #endif
1550 HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
1551 data_len,
1552 context->host, context->addr,
1553 sequence, recv_ttl);
1554 if ((recv_qos != 0) || (opt_send_qos != 0))
1555 {
1556 HOST_PRINTF ("qos=%s ",
1557 format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
1558 }
1559 HOST_PRINTF ("time=%.2f ms\n", latency);
1560 #if USE_NCURSES
1561 }
1562 #endif
1563 }
1564 else /* if (!(latency > 0.0)) */
1565 {
1566 #if USE_NCURSES
1567 if (has_colors () == TRUE)
1568 {
1569 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
1570 context->host, context->addr,
1571 sequence);
1572 wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1573 HOST_PRINTF ("timeout");
1574 wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
1575 HOST_PRINTF ("\n");
1576 }
1577 else
1578 {
1579 #endif
1580 HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
1581 context->host, context->addr,
1582 sequence);
1583 #if USE_NCURSES
1584 }
1585 #endif
1586 }
1588 #if USE_NCURSES
1589 update_stats_from_context (context, iter);
1590 wrefresh (main_win);
1591 #endif
1592 } /* }}} void update_host_hook */
1594 /* Prints statistics for each host, cleans up the contexts and returns the
1595 * number of hosts which failed to return more than the fraction
1596 * opt_exit_status_threshold of pings. */
1597 static int post_loop_hook (pingobj_t *ping) /* {{{ */
1598 {
1599 pingobj_iter_t *iter;
1600 int failure_count = 0;
1602 #if USE_NCURSES
1603 endwin ();
1604 #endif
1606 for (iter = ping_iterator_get (ping);
1607 iter != NULL;
1608 iter = ping_iterator_next (iter))
1609 {
1610 ping_context_t *context;
1612 context = ping_iterator_get_context (iter);
1614 printf ("\n--- %s ping statistics ---\n"
1615 "%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
1616 context->host, context->req_sent, context->req_rcvd,
1617 context_get_packet_loss (context),
1618 context->latency_total);
1620 {
1621 double pct_failed = 1.0 - (((double) context->req_rcvd)
1622 / ((double) context->req_sent));
1623 if (pct_failed > opt_exit_status_threshold)
1624 failure_count++;
1625 }
1627 if (context->req_rcvd != 0)
1628 {
1629 double min;
1630 double median;
1631 double max;
1632 double percentile;
1634 min = percentile_to_latency (context, 0.0);
1635 median = percentile_to_latency (context, 50.0);
1636 max = percentile_to_latency (context, 100.0);
1637 percentile = percentile_to_latency (context, opt_percentile);
1639 printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n",
1640 min, median, opt_percentile, percentile, max);
1641 }
1643 ping_iterator_set_context (iter, NULL);
1644 context_destroy (context);
1645 }
1647 return (failure_count);
1648 } /* }}} int post_loop_hook */
1650 int main (int argc, char **argv) /* {{{ */
1651 {
1652 pingobj_t *ping;
1653 pingobj_iter_t *iter;
1655 struct sigaction sigint_action;
1657 struct timeval tv_begin;
1658 struct timeval tv_end;
1659 struct timespec ts_wait;
1660 struct timespec ts_int;
1662 int optind;
1663 int i;
1664 int status;
1665 #if _POSIX_SAVED_IDS
1666 uid_t saved_set_uid;
1668 /* Save the old effective user id */
1669 saved_set_uid = geteuid ();
1670 /* Set the effective user ID to the real user ID without changing the
1671 * saved set-user ID */
1672 status = seteuid (getuid ());
1673 if (status != 0)
1674 {
1675 fprintf (stderr, "Temporarily dropping privileges "
1676 "failed: %s\n", strerror (errno));
1677 exit (EXIT_FAILURE);
1678 }
1679 #endif
1681 setlocale(LC_ALL, "");
1682 optind = read_options (argc, argv);
1684 #if !_POSIX_SAVED_IDS
1685 /* Cannot temporarily drop privileges -> reject every file but "-". */
1686 if ((opt_filename != NULL)
1687 && (strcmp ("-", opt_filename) != 0)
1688 && (getuid () != geteuid ()))
1689 {
1690 fprintf (stderr, "Your real and effective user IDs don't "
1691 "match. Reading from a file (option '-f')\n"
1692 "is therefore too risky. You can still read "
1693 "from STDIN using '-f -' if you like.\n"
1694 "Sorry.\n");
1695 exit (EXIT_FAILURE);
1696 }
1697 #endif
1699 if ((optind >= argc) && (opt_filename == NULL)) {
1700 usage_exit (argv[0], 1);
1701 }
1703 if ((ping = ping_construct ()) == NULL)
1704 {
1705 fprintf (stderr, "ping_construct failed\n");
1706 return (1);
1707 }
1709 if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
1710 {
1711 fprintf (stderr, "Setting TTL to %i failed: %s\n",
1712 opt_send_ttl, ping_get_error (ping));
1713 }
1715 if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
1716 {
1717 fprintf (stderr, "Setting TOS to %i failed: %s\n",
1718 opt_send_qos, ping_get_error (ping));
1719 }
1721 {
1722 double temp_sec;
1723 double temp_nsec;
1725 temp_nsec = modf (opt_interval, &temp_sec);
1726 ts_int.tv_sec = (time_t) temp_sec;
1727 ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
1729 /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
1730 }
1732 if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0)
1733 {
1734 fprintf (stderr, "Setting timeout failed: %s\n",
1735 ping_get_error (ping));
1736 }
1738 if (opt_addrfamily != PING_DEF_AF)
1739 ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
1741 if (opt_srcaddr != NULL)
1742 {
1743 if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
1744 {
1745 fprintf (stderr, "Setting source address failed: %s\n",
1746 ping_get_error (ping));
1747 }
1748 }
1750 if (opt_device != NULL)
1751 {
1752 if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
1753 {
1754 fprintf (stderr, "Setting device failed: %s\n",
1755 ping_get_error (ping));
1756 }
1757 }
1759 if (opt_filename != NULL)
1760 {
1761 FILE *infile;
1762 char line[256];
1763 char host[256];
1765 if (strcmp (opt_filename, "-") == 0)
1766 /* Open STDIN */
1767 infile = fdopen(0, "r");
1768 else
1769 infile = fopen(opt_filename, "r");
1771 if (infile == NULL)
1772 {
1773 fprintf (stderr, "Opening %s failed: %s\n",
1774 (strcmp (opt_filename, "-") == 0)
1775 ? "STDIN" : opt_filename,
1776 strerror(errno));
1777 return (1);
1778 }
1780 #if _POSIX_SAVED_IDS
1781 /* Regain privileges */
1782 status = seteuid (saved_set_uid);
1783 if (status != 0)
1784 {
1785 fprintf (stderr, "Temporarily re-gaining privileges "
1786 "failed: %s\n", strerror (errno));
1787 exit (EXIT_FAILURE);
1788 }
1789 #endif
1791 while (fgets(line, sizeof(line), infile))
1792 {
1793 /* Strip whitespace */
1794 if (sscanf(line, "%s", host) != 1)
1795 continue;
1797 if ((host[0] == 0) || (host[0] == '#'))
1798 continue;
1800 if (ping_host_add(ping, host) < 0)
1801 {
1802 const char *errmsg = ping_get_error (ping);
1804 fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
1805 continue;
1806 }
1807 else
1808 {
1809 host_num++;
1810 }
1811 }
1813 #if _POSIX_SAVED_IDS
1814 /* Drop privileges */
1815 status = seteuid (getuid ());
1816 if (status != 0)
1817 {
1818 fprintf (stderr, "Temporarily dropping privileges "
1819 "failed: %s\n", strerror (errno));
1820 exit (EXIT_FAILURE);
1821 }
1822 #endif
1824 fclose(infile);
1825 }
1827 #if _POSIX_SAVED_IDS
1828 /* Regain privileges */
1829 status = seteuid (saved_set_uid);
1830 if (status != 0)
1831 {
1832 fprintf (stderr, "Temporarily re-gaining privileges "
1833 "failed: %s\n", strerror (errno));
1834 exit (EXIT_FAILURE);
1835 }
1836 #endif
1838 for (i = optind; i < argc; i++)
1839 {
1840 if (ping_host_add (ping, argv[i]) < 0)
1841 {
1842 const char *errmsg = ping_get_error (ping);
1844 fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
1845 continue;
1846 }
1847 else
1848 {
1849 host_num++;
1850 }
1851 }
1853 /* Permanently drop root privileges if we're setuid-root. */
1854 status = setuid (getuid ());
1855 if (status != 0)
1856 {
1857 fprintf (stderr, "Dropping privileges failed: %s\n",
1858 strerror (errno));
1859 exit (EXIT_FAILURE);
1860 }
1862 if (host_num == 0)
1863 exit (EXIT_FAILURE);
1865 #if _POSIX_SAVED_IDS
1866 saved_set_uid = (uid_t) -1;
1867 #endif
1869 ping_initialize_contexts (ping);
1871 if (i == 0)
1872 return (1);
1874 memset (&sigint_action, '\0', sizeof (sigint_action));
1875 sigint_action.sa_handler = sigint_handler;
1876 if (sigaction (SIGINT, &sigint_action, NULL) < 0)
1877 {
1878 perror ("sigaction");
1879 return (1);
1880 }
1882 pre_loop_hook (ping);
1884 while (opt_count != 0)
1885 {
1886 int index;
1887 int status;
1889 if (gettimeofday (&tv_begin, NULL) < 0)
1890 {
1891 perror ("gettimeofday");
1892 return (1);
1893 }
1895 status = ping_send (ping);
1896 if (status == -EINTR)
1897 {
1898 continue;
1899 }
1900 else if (status < 0)
1901 {
1902 fprintf (stderr, "ping_send failed: %s\n",
1903 ping_get_error (ping));
1904 return (1);
1905 }
1907 index = 0;
1908 for (iter = ping_iterator_get (ping);
1909 iter != NULL;
1910 iter = ping_iterator_next (iter))
1911 {
1912 update_host_hook (iter, index);
1913 index++;
1914 }
1916 pre_sleep_hook (ping);
1918 /* Don't sleep in the last iteration */
1919 if (opt_count == 1)
1920 break;
1922 if (gettimeofday (&tv_end, NULL) < 0)
1923 {
1924 perror ("gettimeofday");
1925 return (1);
1926 }
1928 time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
1930 /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
1931 while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
1932 {
1933 if (errno == EINTR)
1934 {
1935 continue;
1936 }
1937 else
1938 {
1939 perror ("nanosleep");
1940 break;
1941 }
1942 }
1944 post_sleep_hook (ping);
1946 if (opt_count > 0)
1947 opt_count--;
1948 } /* while (opt_count != 0) */
1950 /* Returns the number of failed hosts according to -Z. */
1951 status = post_loop_hook (ping);
1953 ping_destroy (ping);
1955 if (status == 0)
1956 exit (EXIT_SUCCESS);
1957 else
1958 {
1959 if (status > 255)
1960 status = 255;
1961 exit (status);
1962 }
1963 } /* }}} int main */
1965 /* vim: set fdm=marker : */