]> git.saurik.com Git - apple/network_cmds.git/blob - ping.tproj/ping.c
projects / apple / network_cmds.git / blob
? search:


fa79b60c58e089cb1d15f953b6c39ff60891675c
[apple/network_cmds.git] / ping.tproj / ping.c
1 /*
2 * Copyright (c) 1999-2015 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 /*
29 * Copyright (c) 1989, 1993
30 * The Regents of the University of California. All rights reserved.
31 *
32 * This code is derived from software contributed to Berkeley by
33 * Mike Muuss.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 4. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * SUCH DAMAGE.
58 */
59
60 #include <sys/cdefs.h>
61
62 #ifndef lint
63 __unused static const char copyright[] =
64 "@(#) Copyright (c) 1989, 1993\n\
65 The Regents of the University of California. All rights reserved.\n";
66 #endif /* not lint */
67
68 /*
69 * P I N G . C
70 *
71 * Using the Internet Control Message Protocol (ICMP) "ECHO" facility,
72 * measure round-trip-delays and packet loss across network paths.
73 *
74 * Author -
75 * Mike Muuss
76 * U. S. Army Ballistic Research Laboratory
77 * December, 1983
78 *
79 * Status -
80 * Public Domain. Distribution Unlimited.
81 * Bugs -
82 * More statistics could always be gathered.
83 * This program has to run SUID to ROOT to access the ICMP socket.
84 */
85
86 #include <sys/param.h> /* NB: we rely on this for <sys/types.h> */
87 #include <sys/socket.h>
88 #include <sys/sysctl.h>
89 #include <sys/time.h>
90 #include <sys/uio.h>
91
92 #include <netinet/in.h>
93 #include <netinet/in_systm.h>
94 #include <netinet/ip.h>
95 #include <netinet/ip_icmp.h>
96 #include <netinet/ip_var.h>
97 #include <arpa/inet.h>
98 #include <net/if.h>
99
100 #ifdef IPSEC
101 #include <netinet6/ipsec.h>
102 #endif /*IPSEC*/
103
104 #include <ctype.h>
105 #include <err.h>
106 #include <errno.h>
107 #include <math.h>
108 #include <netdb.h>
109 #include <signal.h>
110 #include <stdio.h>
111 #include <stdlib.h>
112 #include <string.h>
113 #include <sysexits.h>
114 #include <unistd.h>
115 #include <ifaddrs.h>
116
117 #define INADDR_LEN ((int)sizeof(in_addr_t))
118 #define TIMEVAL_LEN ((int)sizeof(struct tv32))
119 #define MASK_LEN (ICMP_MASKLEN - ICMP_MINLEN)
120 #define TS_LEN (ICMP_TSLEN - ICMP_MINLEN)
121 #define DEFDATALEN 56 /* default data length */
122 #define FLOOD_BACKOFF 20000 /* usecs to back off if F_FLOOD mode */
123 /* runs out of buffer space */
124 #define MAXIPLEN (sizeof(struct ip) + MAX_IPOPTLEN)
125 #define MAXICMPLEN (ICMP_ADVLENMIN + MAX_IPOPTLEN)
126 #define MAXWAIT 10000 /* max ms to wait for response */
127 #define MAXALARM (60 * 60) /* max seconds for alarm timeout */
128 #define MAXTOS 255
129
130 #define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
131 #define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
132 #define SET(bit) (A(bit) |= B(bit))
133 #define CLR(bit) (A(bit) &= (~B(bit)))
134 #define TST(bit) (A(bit) & B(bit))
135
136 struct tv32 {
137 u_int32_t tv32_sec;
138 u_int32_t tv32_usec;
139 };
140
141 /* various options */
142 int options;
143 #define F_FLOOD 0x0001
144 #define F_INTERVAL 0x0002
145 #define F_NUMERIC 0x0004
146 #define F_PINGFILLED 0x0008
147 #define F_QUIET 0x0010
148 #define F_RROUTE 0x0020
149 #define F_SO_DEBUG 0x0040
150 #define F_SO_DONTROUTE 0x0080
151 #define F_VERBOSE 0x0100
152 #define F_QUIET2 0x0200
153 #define F_NOLOOP 0x0400
154 #define F_MTTL 0x0800
155 #define F_MIF 0x1000
156 #define F_AUDIBLE 0x2000
157 #ifdef IPSEC
158 #ifdef IPSEC_POLICY_IPSEC
159 #define F_POLICY 0x4000
160 #endif /*IPSEC_POLICY_IPSEC*/
161 #endif /*IPSEC*/
162 #define F_TTL 0x8000
163 #define F_MISSED 0x10000
164 #define F_ONCE 0x20000
165 #define F_HDRINCL 0x40000
166 #define F_MASK 0x80000
167 #define F_TIME 0x100000
168 #define F_SWEEP 0x200000
169 #define F_WAITTIME 0x400000
170
171 /*
172 * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
173 * number of received sequence numbers we can keep track of. Change 128
174 * to 8192 for complete accuracy...
175 */
176 #define MAX_DUP_CHK (8 * 128)
177 int mx_dup_ck = MAX_DUP_CHK;
178 char rcvd_tbl[MAX_DUP_CHK / 8];
179
180 struct sockaddr_in whereto; /* who to ping */
181 int datalen = DEFDATALEN;
182 int maxpayload;
183 int s; /* socket file descriptor */
184 u_char outpackhdr[IP_MAXPACKET], *outpack;
185 char BBELL = '\a'; /* characters written for MISSED and AUDIBLE */
186 char BSPACE = '\b'; /* characters written for flood */
187 char DOT = '.';
188 char *hostname;
189 char *shostname;
190 int ident; /* process id to identify our packets */
191 int uid; /* cached uid for micro-optimization */
192 u_char icmp_type = ICMP_ECHO;
193 u_char icmp_type_rsp = ICMP_ECHOREPLY;
194 int phdr_len = 0;
195 int send_len;
196 char *boundif;
197 unsigned int ifscope;
198 #if defined(IP_FORCE_OUT_IFP) && TARGET_OS_EMBEDDED
199 char boundifname[IFNAMSIZ];
200 #endif /* IP_FORCE_OUT_IFP */
201 int nocell;
202 int how_traffic_class = 0;
203 int traffic_class = SO_TC_CTL; /* use control class, by default */
204 int no_dup = 0;
205
206 /* counters */
207 long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
208 long npackets; /* max packets to transmit */
209 long nreceived; /* # of packets we got back */
210 long nrepeats; /* number of duplicates */
211 long ntransmitted; /* sequence # for outbound packets = #sent */
212 long snpackets; /* max packets to transmit in one sweep */
213 long snreceived; /* # of packets we got back in this sweep */
214 long sntransmitted; /* # of packets we sent in this sweep */
215 int sweepmax; /* max value of payload in sweep */
216 int sweepmin = 0; /* start value of payload in sweep */
217 int sweepincr = 1; /* payload increment in sweep */
218 int interval = 1000; /* interval between packets, ms */
219 int waittime = MAXWAIT; /* timeout for each packet */
220 long nrcvtimeout = 0; /* # of packets we got back after waittime */
221 int icmp_len = 0; /* length of the ICMP header */
222
223 /* timing */
224 int timing; /* flag to do timing */
225 double tmin = 999999999.0; /* minimum round trip time */
226 double tmax = 0.0; /* maximum round trip time */
227 double tsum = 0.0; /* sum of all times, for doing average */
228 double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
229
230 volatile sig_atomic_t finish_up; /* nonzero if we've been told to finish up */
231 volatile sig_atomic_t siginfo_p;
232
233 static void fill(char *, char *);
234 static u_short in_cksum(u_short *, int);
235 static void check_status(void);
236 static void finish(void) __dead2;
237 static void pinger(void);
238 static char *pr_addr(struct in_addr);
239 static char *pr_ntime(n_time);
240 static void pr_icmph(struct icmp *);
241 static void pr_iph(struct ip *);
242 static void pr_pack(char *, int, struct sockaddr_in *, struct timeval *, int);
243 static void pr_retip(struct ip *);
244 static void status(int);
245 static void stopit(int);
246 static void tvsub(struct timeval *, const struct timeval *);
247 static uint32_t str2svc(const char *);
248 static void usage(void) __dead2;
249
250 int
251 main(int argc, char *const *argv)
252 {
253 struct sockaddr_in from, sock_in;
254 struct in_addr ifaddr;
255 struct timeval last, intvl;
256 struct iovec iov;
257 struct ip *ip;
258 struct msghdr msg;
259 struct sigaction si_sa;
260 size_t sz;
261 u_char *datap, packet[IP_MAXPACKET] __attribute__((aligned(4)));
262 char *ep, *source, *target, *payload;
263 struct hostent *hp;
264 #ifdef IPSEC_POLICY_IPSEC
265 char *policy_in, *policy_out;
266 #endif
267 struct sockaddr_in *to;
268 double t;
269 u_long alarmtimeout, ultmp;
270 int almost_done, ch, df, hold, i, mib[4], preload, sockerrno,
271 tos, ttl;
272 char ctrl[CMSG_SPACE(sizeof(struct timeval)) + CMSG_SPACE(sizeof(int))];
273 char hnamebuf[MAXHOSTNAMELEN], snamebuf[MAXHOSTNAMELEN];
274 #ifdef IP_OPTIONS
275 char rspace[MAX_IPOPTLEN]; /* record route space */
276 #endif
277 unsigned char loop, mttl;
278
279 payload = source = NULL;
280 #ifdef IPSEC_POLICY_IPSEC
281 policy_in = policy_out = NULL;
282 #endif
283
284 /*
285 * Do the stuff that we need root priv's for *first*, and
286 * then drop our setuid bit. Save error reporting for
287 * after arg parsing.
288 */
289 if (getuid())
290 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP);
291 else
292 s = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
293 sockerrno = errno;
294
295 if (setuid(getuid()) != 0)
296 err(EX_NOPERM, "setuid() failed");
297 uid = getuid();
298
299 alarmtimeout = df = preload = tos = 0;
300
301 outpack = outpackhdr + sizeof(struct ip);
302 while ((ch = getopt(argc, argv,
303 "Aab:Cc:DdfG:g:h:I:i:k:Ll:M:m:nop:QqRrS:s:T:t:vW:z:"
304 #ifdef IPSEC
305 #ifdef IPSEC_POLICY_IPSEC
306 "P:"
307 #endif /*IPSEC_POLICY_IPSEC*/
308 #endif /*IPSEC*/
309 #if defined(IP_FORCE_OUT_IFP) && TARGET_OS_EMBEDDED
310 "B:"
311 #endif /* IP_FORCE_OUT_IFP */
312 )) != -1)
313 {
314 switch(ch) {
315 case 'A':
316 options |= F_MISSED;
317 break;
318 case 'a':
319 options |= F_AUDIBLE;
320 break;
321 #if defined(IP_FORCE_OUT_IFP) && TARGET_OS_EMBEDDED
322 case 'B':
323 (void) snprintf(boundifname, sizeof (boundifname),
324 "%s", optarg);
325 break;
326 #endif /* IP_FORCE_OUT_IFP */
327 case 'b':
328 boundif = optarg;
329 break;
330 case 'C':
331 nocell++;
332 break;
333 case 'c':
334 ultmp = strtoul(optarg, &ep, 0);
335 if (*ep || ep == optarg || ultmp > LONG_MAX || !ultmp)
336 errx(EX_USAGE,
337 "invalid count of packets to transmit: `%s'",
338 optarg);
339 npackets = ultmp;
340 break;
341 case 'D':
342 options |= F_HDRINCL;
343 df = 1;
344 break;
345 case 'd':
346 options |= F_SO_DEBUG;
347 break;
348 case 'f':
349 if (uid) {
350 errno = EPERM;
351 err(EX_NOPERM, "-f flag");
352 }
353 options |= F_FLOOD;
354 setbuf(stdout, (char *)NULL);
355 break;
356 case 'G': /* Maximum packet size for ping sweep */
357 ultmp = strtoul(optarg, &ep, 0);
358 if (*ep || ep == optarg)
359 errx(EX_USAGE, "invalid packet size: `%s'",
360 optarg);
361 #ifndef __APPLE__
362 if (uid != 0 && ultmp > DEFDATALEN) {
363 errno = EPERM;
364 err(EX_NOPERM,
365 "packet size too large: %lu > %u",
366 ultmp, DEFDATALEN);
367 }
368 #endif /* __APPLE__ */
369 options |= F_SWEEP;
370 sweepmax = ultmp;
371 break;
372 case 'g': /* Minimum packet size for ping sweep */
373 ultmp = strtoul(optarg, &ep, 0);
374 if (*ep || ep == optarg)
375 errx(EX_USAGE, "invalid packet size: `%s'",
376 optarg);
377 #ifndef __APPLE__
378 if (uid != 0 && ultmp > DEFDATALEN) {
379 errno = EPERM;
380 err(EX_NOPERM,
381 "packet size too large: %lu > %u",
382 ultmp, DEFDATALEN);
383 }
384 #endif /* __APPLE__ */
385 options |= F_SWEEP;
386 sweepmin = ultmp;
387 break;
388 case 'h': /* Packet size increment for ping sweep */
389 ultmp = strtoul(optarg, &ep, 0);
390 if (*ep || ep == optarg || ultmp < 1)
391 errx(EX_USAGE, "invalid increment size: `%s'",
392 optarg);
393 #ifndef __APPLE__
394 if (uid != 0 && ultmp > DEFDATALEN) {
395 errno = EPERM;
396 err(EX_NOPERM,
397 "packet size too large: %lu > %u",
398 ultmp, DEFDATALEN);
399 }
400 #endif /* __APPLE__ */
401 options |= F_SWEEP;
402 sweepincr = ultmp;
403 break;
404 case 'I': /* multicast interface */
405 if (inet_aton(optarg, &ifaddr) == 0)
406 errx(EX_USAGE,
407 "invalid multicast interface: `%s'",
408 optarg);
409 options |= F_MIF;
410 break;
411 case 'i': /* wait between sending packets */
412 t = strtod(optarg, &ep) * 1000.0;
413 if (*ep || ep == optarg || t > (double)INT_MAX)
414 errx(EX_USAGE, "invalid timing interval: `%s'",
415 optarg);
416 options |= F_INTERVAL;
417 interval = (int)t;
418 if (uid && interval < 100) {
419 errno = EPERM;
420 err(EX_NOPERM, "-i interval too short");
421 }
422 break;
423 case 'k':
424 how_traffic_class++;
425 traffic_class = str2svc(optarg);
426 if (traffic_class == UINT32_MAX)
427 errx(EX_USAGE, "bad traffic class: `%s'",
428 optarg);
429 break;
430 case 'L':
431 options |= F_NOLOOP;
432 loop = 0;
433 break;
434 case 'l':
435 ultmp = strtoul(optarg, &ep, 0);
436 if (*ep || ep == optarg || ultmp > INT_MAX)
437 errx(EX_USAGE,
438 "invalid preload value: `%s'", optarg);
439 if (uid) {
440 errno = EPERM;
441 err(EX_NOPERM, "-l flag");
442 }
443 preload = ultmp;
444 break;
445 case 'M':
446 switch(optarg[0]) {
447 case 'M':
448 case 'm':
449 options |= F_MASK;
450 break;
451 case 'T':
452 case 't':
453 options |= F_TIME;
454 break;
455 default:
456 errx(EX_USAGE, "invalid message: `%c'", optarg[0]);
457 break;
458 }
459 break;
460 case 'm': /* TTL */
461 ultmp = strtoul(optarg, &ep, 0);
462 if (*ep || ep == optarg || ultmp > MAXTTL)
463 errx(EX_USAGE, "invalid TTL: `%s'", optarg);
464 ttl = ultmp;
465 options |= F_TTL;
466 break;
467 case 'n':
468 options |= F_NUMERIC;
469 break;
470 case 'o':
471 options |= F_ONCE;
472 break;
473 #ifdef IPSEC
474 #ifdef IPSEC_POLICY_IPSEC
475 case 'P':
476 options |= F_POLICY;
477 if (!strncmp("in", optarg, 2))
478 policy_in = strdup(optarg);
479 else if (!strncmp("out", optarg, 3))
480 policy_out = strdup(optarg);
481 else
482 errx(1, "invalid security policy");
483 break;
484 #endif /*IPSEC_POLICY_IPSEC*/
485 #endif /*IPSEC*/
486 case 'p': /* fill buffer with user pattern */
487 options |= F_PINGFILLED;
488 payload = optarg;
489 break;
490 case 'Q':
491 options |= F_QUIET2;
492 break;
493 case 'q':
494 options |= F_QUIET;
495 break;
496 case 'R':
497 options |= F_RROUTE;
498 break;
499 case 'r':
500 options |= F_SO_DONTROUTE;
501 break;
502 case 'S':
503 source = optarg;
504 break;
505 case 's': /* size of packet to send */
506 ultmp = strtoul(optarg, &ep, 0);
507 if (*ep || ep == optarg)
508 errx(EX_USAGE, "invalid packet size: `%s'",
509 optarg);
510 #ifndef __APPLE__
511 if (uid != 0 && ultmp > DEFDATALEN) {
512 errno = EPERM;
513 err(EX_NOPERM,
514 "packet size too large: %lu > %u",
515 ultmp, DEFDATALEN);
516 }
517 #endif /* __APPLE__ */
518 datalen = ultmp;
519 break;
520 case 'T': /* multicast TTL */
521 ultmp = strtoul(optarg, &ep, 0);
522 if (*ep || ep == optarg || ultmp > MAXTTL)
523 errx(EX_USAGE, "invalid multicast TTL: `%s'",
524 optarg);
525 mttl = ultmp;
526 options |= F_MTTL;
527 break;
528 case 't':
529 alarmtimeout = strtoul(optarg, &ep, 0);
530 if ((alarmtimeout < 1) || (alarmtimeout == ULONG_MAX))
531 errx(EX_USAGE, "invalid timeout: `%s'",
532 optarg);
533 if (alarmtimeout > MAXALARM)
534 errx(EX_USAGE, "invalid timeout: `%s' > %d",
535 optarg, MAXALARM);
536 alarm((unsigned int)alarmtimeout);
537 break;
538 case 'v':
539 options |= F_VERBOSE;
540 break;
541 case 'W': /* wait ms for answer */
542 t = strtod(optarg, &ep);
543 if (*ep || ep == optarg || t > (double)INT_MAX)
544 errx(EX_USAGE, "invalid timing interval: `%s'",
545 optarg);
546 options |= F_WAITTIME;
547 waittime = (int)t;
548 break;
549 case 'z':
550 options |= F_HDRINCL;
551 ultmp = strtoul(optarg, &ep, 0);
552 if (*ep || ep == optarg || ultmp > MAXTOS)
553 errx(EX_USAGE, "invalid TOS: `%s'", optarg);
554 tos = ultmp;
555 break;
556 default:
557 usage();
558 }
559 }
560
561 if (boundif != NULL && (ifscope = if_nametoindex(boundif)) == 0)
562 errx(1, "bad interface name");
563
564 if (argc - optind != 1)
565 usage();
566 target = argv[optind];
567
568 switch (options & (F_MASK|F_TIME)) {
569 case 0: break;
570 case F_MASK:
571 icmp_type = ICMP_MASKREQ;
572 icmp_type_rsp = ICMP_MASKREPLY;
573 phdr_len = MASK_LEN;
574 if (!(options & F_QUIET))
575 (void)printf("ICMP_MASKREQ\n");
576 break;
577 case F_TIME:
578 icmp_type = ICMP_TSTAMP;
579 icmp_type_rsp = ICMP_TSTAMPREPLY;
580 phdr_len = TS_LEN;
581 if (!(options & F_QUIET))
582 (void)printf("ICMP_TSTAMP\n");
583 break;
584 default:
585 errx(EX_USAGE, "ICMP_TSTAMP and ICMP_MASKREQ are exclusive.");
586 break;
587 }
588 icmp_len = sizeof(struct ip) + ICMP_MINLEN + phdr_len;
589 if (options & F_RROUTE)
590 icmp_len += MAX_IPOPTLEN;
591 maxpayload = IP_MAXPACKET - icmp_len;
592 if (datalen > maxpayload)
593 errx(EX_USAGE, "packet size too large: %d > %d", datalen,
594 maxpayload);
595 send_len = icmp_len + datalen;
596 datap = &outpack[ICMP_MINLEN + phdr_len + TIMEVAL_LEN];
597 if (options & F_PINGFILLED) {
598 fill((char *)datap, payload);
599 }
600 if (source) {
601 bzero((char *)&sock_in, sizeof(sock_in));
602 sock_in.sin_family = AF_INET;
603 if (inet_aton(source, &sock_in.sin_addr) != 0) {
604 shostname = source;
605 } else {
606 hp = gethostbyname2(source, AF_INET);
607 if (!hp)
608 errx(EX_NOHOST, "cannot resolve %s: %s",
609 source, hstrerror(h_errno));
610
611 sock_in.sin_len = sizeof sock_in;
612 if ((unsigned)hp->h_length > sizeof(sock_in.sin_addr) ||
613 hp->h_length < 0)
614 errx(1, "gethostbyname2: illegal address");
615 memcpy(&sock_in.sin_addr, hp->h_addr_list[0],
616 sizeof(sock_in.sin_addr));
617 (void)strncpy(snamebuf, hp->h_name,
618 sizeof(snamebuf) - 1);
619 snamebuf[sizeof(snamebuf) - 1] = '\0';
620 shostname = snamebuf;
621 }
622 if (bind(s, (struct sockaddr *)&sock_in, sizeof sock_in) == -1)
623 err(1, "bind");
624 }
625
626 bzero(&whereto, sizeof(whereto));
627 to = &whereto;
628 to->sin_family = AF_INET;
629 to->sin_len = sizeof *to;
630 if (inet_aton(target, &to->sin_addr) != 0) {
631 hostname = target;
632 } else {
633 hp = gethostbyname2(target, AF_INET);
634 if (!hp)
635 errx(EX_NOHOST, "cannot resolve %s: %s",
636 target, hstrerror(h_errno));
637
638 if ((unsigned)hp->h_length > sizeof(to->sin_addr))
639 errx(1, "gethostbyname2 returned an illegal address");
640 memcpy(&to->sin_addr, hp->h_addr_list[0], sizeof to->sin_addr);
641 (void)strncpy(hnamebuf, hp->h_name, sizeof(hnamebuf) - 1);
642 hnamebuf[sizeof(hnamebuf) - 1] = '\0';
643 hostname = hnamebuf;
644 }
645
646 do {
647 struct ifaddrs *ifa_list, *ifa;
648
649 if (IN_MULTICAST(ntohl(whereto.sin_addr.s_addr)) || whereto.sin_addr.s_addr == INADDR_BROADCAST) {
650 no_dup = 1;
651 break;
652 }
653
654 if (getifaddrs(&ifa_list) == -1)
655 break;
656 for (ifa = ifa_list; ifa; ifa = ifa->ifa_next) {
657 if (ifa->ifa_addr->sa_family != AF_INET)
658 continue;
659 if ((ifa->ifa_flags & IFF_BROADCAST) == 0 || ifa->ifa_broadaddr == NULL)
660 continue;
661 if (whereto.sin_addr.s_addr != ((struct sockaddr_in*)ifa->ifa_broadaddr)->sin_addr.s_addr)
662 continue;
663 no_dup = 1;
664 break;
665 }
666
667 freeifaddrs(ifa_list);
668 } while (0);
669
670 if (options & F_FLOOD && options & F_INTERVAL)
671 errx(EX_USAGE, "-f and -i: incompatible options");
672
673 if (options & F_FLOOD && IN_MULTICAST(ntohl(to->sin_addr.s_addr)))
674 errx(EX_USAGE,
675 "-f flag cannot be used with multicast destination");
676 if (options & (F_MIF | F_NOLOOP | F_MTTL)
677 && !IN_MULTICAST(ntohl(to->sin_addr.s_addr)))
678 errx(EX_USAGE,
679 "-I, -L, -T flags cannot be used with unicast destination");
680
681 if (datalen >= TIMEVAL_LEN) /* can we time transfer */
682 timing = 1;
683
684 if (!(options & F_PINGFILLED))
685 for (i = TIMEVAL_LEN; i < MAX(datalen, sweepmax); ++i)
686 *datap++ = i;
687
688 ident = getpid() & 0xFFFF;
689
690 if (s < 0) {
691 errno = sockerrno;
692 err(EX_OSERR, "socket");
693 }
694 hold = 1;
695 (void) setsockopt(s, SOL_SOCKET, SO_RECV_ANYIF, (char *)&hold,
696 sizeof(hold));
697 if (ifscope != 0) {
698 if (setsockopt(s, IPPROTO_IP, IP_BOUND_IF,
699 (char *)&ifscope, sizeof (ifscope)) != 0)
700 err(EX_OSERR, "setsockopt(IP_BOUND_IF)");
701 }
702 #if defined(IP_FORCE_OUT_IFP) && TARGET_OS_EMBEDDED
703 else if (boundifname[0] != 0) {
704 if (setsockopt(s, IPPROTO_IP, IP_FORCE_OUT_IFP, boundifname,
705 sizeof (boundifname)) != 0)
706 err(EX_OSERR, "setsockopt(IP_FORCE_OUT_IFP)");
707 }
708 #endif /* IP_FORCE_OUT_IFP */
709 if (nocell) {
710 if (setsockopt(s, IPPROTO_IP, IP_NO_IFT_CELLULAR,
711 (char *)&nocell, sizeof (nocell)) != 0)
712 err(EX_OSERR, "setsockopt(IP_NO_IFT_CELLULAR)");
713 }
714 if (options & F_SO_DEBUG)
715 (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
716 sizeof(hold));
717 if (options & F_SO_DONTROUTE)
718 (void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&hold,
719 sizeof(hold));
720 if (how_traffic_class < 2 && traffic_class >= 0) {
721 (void) setsockopt(s, SOL_SOCKET, SO_TRAFFIC_CLASS,
722 (void *)&traffic_class, sizeof (traffic_class));
723 }
724 if (how_traffic_class > 0) {
725 int on = 1;
726 (void) setsockopt(s, SOL_SOCKET, SO_RECV_TRAFFIC_CLASS,
727 (void *)&on, sizeof (on));
728 }
729 #ifdef IPSEC
730 #ifdef IPSEC_POLICY_IPSEC
731 if (options & F_POLICY) {
732 char *buf;
733 if (policy_in != NULL) {
734 buf = ipsec_set_policy(policy_in, strlen(policy_in));
735 if (buf == NULL)
736 errx(EX_CONFIG, "%s", ipsec_strerror());
737 if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY,
738 buf, ipsec_get_policylen(buf)) < 0)
739 err(EX_CONFIG,
740 "ipsec policy cannot be configured");
741 free(buf);
742 }
743
744 if (policy_out != NULL) {
745 buf = ipsec_set_policy(policy_out, strlen(policy_out));
746 if (buf == NULL)
747 errx(EX_CONFIG, "%s", ipsec_strerror());
748 if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY,
749 buf, ipsec_get_policylen(buf)) < 0)
750 err(EX_CONFIG,
751 "ipsec policy cannot be configured");
752 free(buf);
753 }
754 }
755 #endif /*IPSEC_POLICY_IPSEC*/
756 #endif /*IPSEC*/
757
758 if (options & F_HDRINCL) {
759 ip = (struct ip*)outpackhdr;
760 if (!(options & (F_TTL | F_MTTL))) {
761 mib[0] = CTL_NET;
762 mib[1] = PF_INET;
763 mib[2] = IPPROTO_IP;
764 mib[3] = IPCTL_DEFTTL;
765 sz = sizeof(ttl);
766 if (sysctl(mib, 4, &ttl, &sz, NULL, 0) == -1)
767 err(1, "sysctl(net.inet.ip.ttl)");
768 }
769 setsockopt(s, IPPROTO_IP, IP_HDRINCL, &hold, sizeof(hold));
770 ip->ip_v = IPVERSION;
771 ip->ip_hl = sizeof(struct ip) >> 2;
772 ip->ip_tos = tos;
773 ip->ip_id = 0;
774 ip->ip_off = df ? IP_DF : 0;
775 ip->ip_ttl = ttl;
776 ip->ip_p = IPPROTO_ICMP;
777 ip->ip_src.s_addr = source ? sock_in.sin_addr.s_addr : INADDR_ANY;
778 ip->ip_dst = to->sin_addr;
779 }
780 /* record route option */
781 if (options & F_RROUTE) {
782 #ifdef IP_OPTIONS
783 bzero(rspace, sizeof(rspace));
784 rspace[IPOPT_OPTVAL] = IPOPT_RR;
785 rspace[IPOPT_OLEN] = sizeof(rspace) - 1;
786 rspace[IPOPT_OFFSET] = IPOPT_MINOFF;
787 rspace[sizeof(rspace) - 1] = IPOPT_EOL;
788 if (setsockopt(s, IPPROTO_IP, IP_OPTIONS, rspace,
789 sizeof(rspace)) < 0)
790 err(EX_OSERR, "setsockopt IP_OPTIONS");
791 #else
792 errx(EX_UNAVAILABLE,
793 "record route not available in this implementation");
794 #endif /* IP_OPTIONS */
795 }
796
797 if (options & F_TTL) {
798 if (setsockopt(s, IPPROTO_IP, IP_TTL, &ttl,
799 sizeof(ttl)) < 0) {
800 err(EX_OSERR, "setsockopt IP_TTL");
801 }
802 }
803 if (options & F_NOLOOP) {
804 if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP, &loop,
805 sizeof(loop)) < 0) {
806 err(EX_OSERR, "setsockopt IP_MULTICAST_LOOP");
807 }
808 }
809 if (options & F_MTTL) {
810 if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &mttl,
811 sizeof(mttl)) < 0) {
812 err(EX_OSERR, "setsockopt IP_MULTICAST_TTL");
813 }
814 }
815 if (options & F_MIF) {
816 if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, &ifaddr,
817 sizeof(ifaddr)) < 0) {
818 err(EX_OSERR, "setsockopt IP_MULTICAST_IF");
819 }
820 }
821 #ifdef SO_TIMESTAMP
822 { int on = 1;
823 if (setsockopt(s, SOL_SOCKET, SO_TIMESTAMP, &on, sizeof(on)) < 0)
824 err(EX_OSERR, "setsockopt SO_TIMESTAMP");
825 }
826 #endif
827 if (sweepmax) {
828 if (sweepmin >= sweepmax)
829 errx(EX_USAGE, "Maximum packet size must be greater than the minimum packet size");
830
831 if (datalen != DEFDATALEN)
832 errx(EX_USAGE, "Packet size and ping sweep are mutually exclusive");
833
834 if (npackets > 0) {
835 snpackets = npackets;
836 npackets = 0;
837 } else
838 snpackets = 1;
839 datalen = sweepmin;
840 send_len = icmp_len + sweepmin;
841 }
842 if (options & F_SWEEP && !sweepmax)
843 errx(EX_USAGE, "Maximum sweep size must be specified");
844
845 /*
846 * When pinging the broadcast address, you can get a lot of answers.
847 * Doing something so evil is useful if you are trying to stress the
848 * ethernet, or just want to fill the arp cache to get some stuff for
849 * /etc/ethers. But beware: RFC 1122 allows hosts to ignore broadcast
850 * or multicast pings if they wish.
851 */
852
853 /*
854 * XXX receive buffer needs undetermined space for mbuf overhead
855 * as well.
856 */
857 hold = IP_MAXPACKET + 128;
858 (void)setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
859 sizeof(hold));
860 if (uid == 0)
861 (void)setsockopt(s, SOL_SOCKET, SO_SNDBUF, (char *)&hold,
862 sizeof(hold));
863
864 if (to->sin_family == AF_INET) {
865 (void)printf("PING %s (%s)", hostname,
866 inet_ntoa(to->sin_addr));
867 if (source)
868 (void)printf(" from %s", shostname);
869 if (sweepmax)
870 (void)printf(": (%d ... %d) data bytes\n",
871 sweepmin, sweepmax);
872 else
873 (void)printf(": %d data bytes\n", datalen);
874
875 } else {
876 if (sweepmax)
877 (void)printf("PING %s: (%d ... %d) data bytes\n",
878 hostname, sweepmin, sweepmax);
879 else
880 (void)printf("PING %s: %d data bytes\n", hostname, datalen);
881 }
882
883 /*
884 * Use sigaction() instead of signal() to get unambiguous semantics,
885 * in particular with SA_RESTART not set.
886 */
887
888 sigemptyset(&si_sa.sa_mask);
889 si_sa.sa_flags = 0;
890
891 si_sa.sa_handler = stopit;
892 if (sigaction(SIGINT, &si_sa, 0) == -1) {
893 err(EX_OSERR, "sigaction SIGINT");
894 }
895 si_sa.sa_handler = stopit;
896 if (sigaction(SIGQUIT, &si_sa, 0) == -1) {
897 err(EX_OSERR, "sigaction SIGQUIT");
898 }
899
900 si_sa.sa_handler = status;
901 if (sigaction(SIGINFO, &si_sa, 0) == -1) {
902 err(EX_OSERR, "sigaction SIGINFO");
903 }
904
905 if (alarmtimeout > 0) {
906 si_sa.sa_handler = stopit;
907 if (sigaction(SIGALRM, &si_sa, 0) == -1)
908 err(EX_OSERR, "sigaction SIGALRM");
909 }
910
911 bzero(&msg, sizeof(msg));
912 msg.msg_name = (caddr_t)&from;
913 msg.msg_iov = &iov;
914 msg.msg_iovlen = 1;
915 #ifdef SO_TIMESTAMP
916 msg.msg_control = (caddr_t)ctrl;
917 #endif
918 iov.iov_base = packet;
919 iov.iov_len = IP_MAXPACKET;
920
921 if (preload == 0)
922 pinger(); /* send the first ping */
923 else {
924 if (npackets != 0 && preload > npackets)
925 preload = npackets;
926 while (preload--) /* fire off them quickies */
927 pinger();
928 }
929 (void)gettimeofday(&last, NULL);
930
931 if (options & F_FLOOD) {
932 intvl.tv_sec = 0;
933 intvl.tv_usec = 10000;
934 } else {
935 intvl.tv_sec = interval / 1000;
936 intvl.tv_usec = interval % 1000 * 1000;
937 }
938
939 almost_done = 0;
940 while (!finish_up) {
941 struct timeval now, timeout;
942 fd_set rfds;
943 int cc, n;
944 int tc = -1;
945
946 check_status();
947 if ((unsigned)s >= FD_SETSIZE)
948 errx(EX_OSERR, "descriptor too large");
949 FD_ZERO(&rfds);
950 FD_SET(s, &rfds);
951 (void)gettimeofday(&now, NULL);
952 timeout.tv_sec = last.tv_sec + intvl.tv_sec - now.tv_sec;
953 timeout.tv_usec = last.tv_usec + intvl.tv_usec - now.tv_usec;
954 while (timeout.tv_usec < 0) {
955 timeout.tv_usec += 1000000;
956 timeout.tv_sec--;
957 }
958 while (timeout.tv_usec >= 1000000) {
959 timeout.tv_usec -= 1000000;
960 timeout.tv_sec++;
961 }
962 if (timeout.tv_sec < 0)
963 timeout.tv_sec = timeout.tv_usec = 0;
964 n = select(s + 1, &rfds, NULL, NULL, &timeout);
965 if (n < 0)
966 continue; /* Must be EINTR. */
967 if (n == 1) {
968 struct timeval *tv = NULL;
969 #ifdef SO_TIMESTAMP
970 struct cmsghdr *cmsg = (struct cmsghdr *)&ctrl;
971
972 msg.msg_controllen = sizeof(ctrl);
973 #endif
974 msg.msg_namelen = sizeof(from);
975 if ((cc = recvmsg(s, &msg, 0)) < 0) {
976 if (errno == EINTR)
977 continue;
978 warn("recvmsg");
979 continue;
980 }
981 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
982 #ifdef SO_TIMESTAMP
983 if (cmsg->cmsg_level == SOL_SOCKET &&
984 cmsg->cmsg_type == SCM_TIMESTAMP &&
985 cmsg->cmsg_len == CMSG_LEN(sizeof *tv)) {
986 /* Copy to avoid alignment problems: */
987 memcpy(&now, CMSG_DATA(cmsg), sizeof(now));
988 tv = &now;
989 }
990 #endif
991 if (cmsg->cmsg_level == SOL_SOCKET &&
992 cmsg->cmsg_type == SO_TRAFFIC_CLASS &&
993 cmsg->cmsg_len == CMSG_LEN(sizeof(int))) {
994 /* Copy to avoid alignment problems: */
995 memcpy(&tc, CMSG_DATA(cmsg), sizeof(tc));
996 }
997 }
998 if (tv == NULL) {
999 (void)gettimeofday(&now, NULL);
1000 tv = &now;
1001 }
1002 pr_pack((char *)packet, cc, &from, tv, tc);
1003 if ((options & F_ONCE && nreceived) ||
1004 (npackets && nreceived >= npackets))
1005 break;
1006 }
1007 if (n == 0 || options & F_FLOOD) {
1008 if (sweepmax && sntransmitted == snpackets) {
1009 datalen += sweepincr;
1010 if (datalen > sweepmax)
1011 break;
1012 send_len = icmp_len + datalen;
1013 sntransmitted = 0;
1014 }
1015 if (!npackets || ntransmitted < npackets)
1016 pinger();
1017 else {
1018 if (almost_done)
1019 break;
1020 almost_done = 1;
1021 intvl.tv_usec = 0;
1022 if (nreceived) {
1023 intvl.tv_sec = 2 * tmax / 1000;
1024 if (!intvl.tv_sec)
1025 intvl.tv_sec = 1;
1026 } else {
1027 intvl.tv_sec = waittime / 1000;
1028 intvl.tv_usec = waittime % 1000 * 1000;
1029 }
1030 }
1031 (void)gettimeofday(&last, NULL);
1032 if (ntransmitted - nreceived - 1 > nmissedmax) {
1033 nmissedmax = ntransmitted - nreceived - 1;
1034 if (options & F_MISSED)
1035 (void)write(STDOUT_FILENO, &BBELL, 1);
1036 if (!(options & F_QUIET)) {
1037 printf("Request timeout for icmp_seq %u\n",
1038 (uint16_t)(ntransmitted - 2));
1039 if (!(options & F_FLOOD))
1040 (void)fflush(stdout);
1041 }
1042 }
1043 }
1044 }
1045 finish();
1046 /* NOTREACHED */
1047 exit(0); /* Make the compiler happy */
1048 }
1049
1050 /*
1051 * stopit --
1052 * Set the global bit that causes the main loop to quit.
1053 * Do NOT call finish() from here, since finish() does far too much
1054 * to be called from a signal handler.
1055 */
1056 void
1057 stopit(int sig __unused)
1058 {
1059
1060 /*
1061 * When doing reverse DNS lookups, the finish_up flag might not
1062 * be noticed for a while. Just exit if we get a second SIGINT.
1063 */
1064 if (!(options & F_NUMERIC) && finish_up)
1065 _exit(nreceived ? 0 : 2);
1066 finish_up = 1;
1067 }
1068
1069 /*
1070 * pinger --
1071 * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
1072 * will be added on by the kernel. The ID field is our UNIX process ID,
1073 * and the sequence number is an ascending integer. The first TIMEVAL_LEN
1074 * bytes of the data portion are used to hold a UNIX "timeval" struct in
1075 * host byte-order, to compute the round-trip time.
1076 */
1077 static void
1078 pinger(void)
1079 {
1080 struct timeval now;
1081 struct tv32 tv32;
1082 struct ip *ip;
1083 struct icmp *icp;
1084 int cc, i;
1085 u_char *packet;
1086
1087 packet = outpack;
1088 icp = (struct icmp *)outpack;
1089 icp->icmp_type = icmp_type;
1090 icp->icmp_code = 0;
1091 icp->icmp_cksum = 0;
1092 icp->icmp_seq = htons(ntransmitted);
1093 icp->icmp_id = ident; /* ID */
1094
1095 CLR(ntransmitted % mx_dup_ck);
1096
1097 if ((options & F_TIME) || timing) {
1098 (void)gettimeofday(&now, NULL);
1099
1100 tv32.tv32_sec = htonl(now.tv_sec);
1101 tv32.tv32_usec = htonl(now.tv_usec);
1102 if (options & F_TIME)
1103 icp->icmp_otime = htonl((now.tv_sec % (24*60*60))
1104 * 1000 + now.tv_usec / 1000);
1105 if (timing)
1106 bcopy((void *)&tv32,
1107 (void *)&outpack[ICMP_MINLEN + phdr_len],
1108 sizeof(tv32));
1109 }
1110
1111 cc = ICMP_MINLEN + phdr_len + datalen;
1112
1113 /* compute ICMP checksum here */
1114 icp->icmp_cksum = in_cksum((u_short *)icp, cc);
1115
1116 if (options & F_HDRINCL) {
1117 cc += sizeof(struct ip);
1118 ip = (struct ip *)outpackhdr;
1119 ip->ip_len = cc;
1120 ip->ip_sum = in_cksum((u_short *)outpackhdr, cc);
1121 packet = outpackhdr;
1122 }
1123 if (how_traffic_class > 1 && traffic_class >= 0) {
1124 struct msghdr msg;
1125 struct iovec iov;
1126 char *cmbuf[CMSG_SPACE(sizeof(int))];
1127 struct cmsghdr *cm = (struct cmsghdr *)cmbuf;
1128
1129 msg.msg_name = &whereto;
1130 msg.msg_namelen = sizeof(whereto);
1131
1132 iov.iov_base = packet;
1133 iov.iov_len = cc;
1134 msg.msg_iov = &iov;
1135 msg.msg_iovlen = 1;
1136
1137 cm->cmsg_len = CMSG_LEN(sizeof(int));
1138 cm->cmsg_level = SOL_SOCKET;
1139 cm->cmsg_type = SO_TRAFFIC_CLASS;
1140 *(int *)CMSG_DATA(cm) = traffic_class;
1141 msg.msg_control = cm;
1142 msg.msg_controllen = CMSG_SPACE(sizeof(int));
1143
1144 msg.msg_flags = 0;
1145
1146 i = sendmsg(s, &msg, 0);
1147 } else {
1148 i = sendto(s, (char *)packet, cc, 0, (struct sockaddr *)&whereto,
1149 sizeof(whereto));
1150 }
1151 if (i < 0 || i != cc) {
1152 if (i < 0) {
1153 if (options & F_FLOOD && errno == ENOBUFS) {
1154 usleep(FLOOD_BACKOFF);
1155 return;
1156 }
1157 warn("sendto");
1158 } else {
1159 warn("%s: partial write: %d of %d bytes",
1160 hostname, i, cc);
1161 }
1162 }
1163 ntransmitted++;
1164 sntransmitted++;
1165 if (!(options & F_QUIET) && options & F_FLOOD)
1166 (void)write(STDOUT_FILENO, &DOT, 1);
1167 }
1168
1169 /*
1170 * pr_pack --
1171 * Print out the packet, if it came from us. This logic is necessary
1172 * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
1173 * which arrive ('tis only fair). This permits multiple copies of this
1174 * program to be run without having intermingled output (or statistics!).
1175 */
1176 static void
1177 pr_pack(char *buf, int cc, struct sockaddr_in *from, struct timeval *tv,
1178 int tc)
1179 {
1180 struct in_addr ina;
1181 u_char *cp, *dp;
1182 struct icmp *icp;
1183 struct ip *ip;
1184 const void *tp;
1185 double triptime;
1186 int dupflag, hlen, i, j, recv_len, seq;
1187 static int old_rrlen;
1188 static char old_rr[MAX_IPOPTLEN];
1189
1190 /* Check the IP header */
1191 ip = (struct ip *)buf;
1192 hlen = ip->ip_hl << 2;
1193 recv_len = cc;
1194 if (cc < hlen + ICMP_MINLEN) {
1195 if (options & F_VERBOSE)
1196 warn("packet too short (%d bytes) from %s", cc,
1197 inet_ntoa(from->sin_addr));
1198 return;
1199 }
1200
1201 /* Now the ICMP part */
1202 cc -= hlen;
1203 icp = (struct icmp *)(buf + hlen);
1204 if (icp->icmp_type == icmp_type_rsp) {
1205 if (icp->icmp_id != ident)
1206 return; /* 'Twas not our ECHO */
1207 ++nreceived;
1208 triptime = 0.0;
1209 if (timing) {
1210 struct timeval tv1;
1211 struct tv32 tv32;
1212 #ifndef icmp_data
1213 tp = &icp->icmp_ip;
1214 #else
1215 tp = icp->icmp_data;
1216 #endif
1217 tp = (const char *)tp + phdr_len;
1218
1219 if (cc - ICMP_MINLEN - phdr_len >= sizeof(tv1)) {
1220 /* Copy to avoid alignment problems: */
1221 memcpy(&tv32, tp, sizeof(tv32));
1222 tv1.tv_sec = ntohl(tv32.tv32_sec);
1223 tv1.tv_usec = ntohl(tv32.tv32_usec);
1224 tvsub(tv, &tv1);
1225 triptime = ((double)tv->tv_sec) * 1000.0 +
1226 ((double)tv->tv_usec) / 1000.0;
1227 tsum += triptime;
1228 tsumsq += triptime * triptime;
1229 if (triptime < tmin)
1230 tmin = triptime;
1231 if (triptime > tmax)
1232 tmax = triptime;
1233 } else
1234 timing = 0;
1235 }
1236
1237 seq = ntohs(icp->icmp_seq);
1238
1239 if (TST(seq % mx_dup_ck)) {
1240 ++nrepeats;
1241 --nreceived;
1242 dupflag = 1;
1243 } else {
1244 SET(seq % mx_dup_ck);
1245 dupflag = 0;
1246 }
1247
1248 if (options & F_QUIET)
1249 return;
1250
1251 if (options & F_WAITTIME && triptime > waittime) {
1252 ++nrcvtimeout;
1253 return;
1254 }
1255
1256 if (options & F_FLOOD)
1257 (void)write(STDOUT_FILENO, &BSPACE, 1);
1258 else {
1259 int seq_sent_len = send_len;
1260 int seq_datalen = datalen;
1261
1262 if (sweepmax != 0) {
1263 /*
1264 * When sweeping take in account the length of that
1265 * was sent based on the sequence number
1266 */
1267 seq_datalen = sweepmin + (seq / snpackets) * sweepincr;
1268 seq_sent_len = icmp_len + seq_datalen;
1269 }
1270 (void)printf("%d bytes from %s: icmp_seq=%u", cc,
1271 inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
1272 seq);
1273 (void)printf(" ttl=%d", ip->ip_ttl);
1274 if (timing)
1275 (void)printf(" time=%.3f ms", triptime);
1276 if (tc != -1) {
1277 (void)printf(" tc=%d", tc);
1278 }
1279 if (dupflag && no_dup == 0) {
1280 (void)printf(" (DUP!)");
1281 }
1282 if (options & F_AUDIBLE)
1283 (void)write(STDOUT_FILENO, &BBELL, 1);
1284 if (options & F_MASK) {
1285 /* Just prentend this cast isn't ugly */
1286 (void)printf(" mask=%s",
1287 pr_addr(*(struct in_addr *)&(icp->icmp_mask)));
1288 }
1289 if (options & F_TIME) {
1290 (void)printf(" tso=%s", pr_ntime(icp->icmp_otime));
1291 (void)printf(" tsr=%s", pr_ntime(icp->icmp_rtime));
1292 (void)printf(" tst=%s", pr_ntime(icp->icmp_ttime));
1293 }
1294 if (recv_len != seq_sent_len) {
1295 (void)printf(
1296 "\nwrong total length %d instead of %d",
1297 recv_len, seq_sent_len);
1298 }
1299 /* check the data */
1300 cp = (u_char*)&icp->icmp_data[phdr_len];
1301 dp = &outpack[ICMP_MINLEN + phdr_len];
1302 cc -= ICMP_MINLEN + phdr_len;
1303 i = 0;
1304 if (timing) { /* don't check variable timestamp */
1305 cp += TIMEVAL_LEN;
1306 dp += TIMEVAL_LEN;
1307 cc -= TIMEVAL_LEN;
1308 i += TIMEVAL_LEN;
1309 }
1310 for (; i < seq_datalen && cc > 0; ++i, ++cp, ++dp, --cc) {
1311 if (*cp != *dp) {
1312 (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x",
1313 i, *dp, *cp);
1314 (void)printf("\ncp:");
1315 cp = (u_char*)&icp->icmp_data[0];
1316 for (i = 0; i < seq_datalen; ++i, ++cp) {
1317 if ((i % 16) == 0)
1318 (void)printf("\n\t");
1319 (void)printf("%2x ", *cp);
1320 }
1321 (void)printf("\ndp:");
1322 cp = &outpack[ICMP_MINLEN];
1323 for (i = 0; i < seq_datalen; ++i, ++cp) {
1324 if ((i % 16) == 0)
1325 (void)printf("\n\t");
1326 (void)printf("%2x ", *cp);
1327 }
1328 break;
1329 }
1330 }
1331 }
1332 } else {
1333 /*
1334 * We've got something other than an ECHOREPLY.
1335 * See if it's a reply to something that we sent.
1336 * We can compare IP destination, protocol,
1337 * and ICMP type and ID.
1338 *
1339 * Only print all the error messages if we are running
1340 * as root to avoid leaking information not normally
1341 * available to those not running as root.
1342 */
1343 #ifndef icmp_data
1344 struct ip *oip = &icp->icmp_ip;
1345 #else
1346 struct ip *oip = (struct ip *)icp->icmp_data;
1347 #endif
1348 struct icmp *oicmp = (struct icmp *)(oip + 1);
1349
1350 if (((options & F_VERBOSE) && uid == 0) ||
1351 (!(options & F_QUIET2) &&
1352 (oip->ip_dst.s_addr == whereto.sin_addr.s_addr) &&
1353 (oip->ip_p == IPPROTO_ICMP) &&
1354 (oicmp->icmp_type == ICMP_ECHO) &&
1355 (oicmp->icmp_id == ident))) {
1356 (void)printf("%d bytes from %s: ", cc,
1357 pr_addr(from->sin_addr));
1358 pr_icmph(icp);
1359 } else
1360 return;
1361 }
1362
1363 /* Display any IP options */
1364 cp = (u_char *)buf + sizeof(struct ip);
1365
1366 for (; hlen > (int)sizeof(struct ip); --hlen, ++cp)
1367 switch (*cp) {
1368 case IPOPT_EOL:
1369 hlen = 0;
1370 break;
1371 case IPOPT_LSRR:
1372 case IPOPT_SSRR:
1373 (void)printf(*cp == IPOPT_LSRR ?
1374 "\nLSRR: " : "\nSSRR: ");
1375 j = cp[IPOPT_OLEN] - IPOPT_MINOFF + 1;
1376 hlen -= 2;
1377 cp += 2;
1378 if (j >= INADDR_LEN &&
1379 j <= hlen - (int)sizeof(struct ip)) {
1380 for (;;) {
1381 bcopy(++cp, &ina.s_addr, INADDR_LEN);
1382 if (ina.s_addr == 0)
1383 (void)printf("\t0.0.0.0");
1384 else
1385 (void)printf("\t%s",
1386 pr_addr(ina));
1387 hlen -= INADDR_LEN;
1388 cp += INADDR_LEN - 1;
1389 j -= INADDR_LEN;
1390 if (j < INADDR_LEN)
1391 break;
1392 (void)putchar('\n');
1393 }
1394 } else
1395 (void)printf("\t(truncated route)\n");
1396 break;
1397 case IPOPT_RR:
1398 j = cp[IPOPT_OLEN]; /* get length */
1399 i = cp[IPOPT_OFFSET]; /* and pointer */
1400 hlen -= 2;
1401 cp += 2;
1402 if (i > j)
1403 i = j;
1404 i = i - IPOPT_MINOFF + 1;
1405 if (i < 0 || i > (hlen - (int)sizeof(struct ip))) {
1406 old_rrlen = 0;
1407 continue;
1408 }
1409 if (i == old_rrlen
1410 && !bcmp((char *)cp, old_rr, i)
1411 && !(options & F_FLOOD)) {
1412 (void)printf("\t(same route)");
1413 hlen -= i;
1414 cp += i;
1415 break;
1416 }
1417 old_rrlen = i;
1418 bcopy((char *)cp, old_rr, i);
1419 (void)printf("\nRR: ");
1420 if (i >= INADDR_LEN &&
1421 i <= hlen - (int)sizeof(struct ip)) {
1422 for (;;) {
1423 bcopy(++cp, &ina.s_addr, INADDR_LEN);
1424 if (ina.s_addr == 0)
1425 (void)printf("\t0.0.0.0");
1426 else
1427 (void)printf("\t%s",
1428 pr_addr(ina));
1429 hlen -= INADDR_LEN;
1430 cp += INADDR_LEN - 1;
1431 i -= INADDR_LEN;
1432 if (i < INADDR_LEN)
1433 break;
1434 (void)putchar('\n');
1435 }
1436 } else
1437 (void)printf("\t(truncated route)");
1438 break;
1439 case IPOPT_NOP:
1440 (void)printf("\nNOP");
1441 break;
1442 default:
1443 (void)printf("\nunknown option %x", *cp);
1444 break;
1445 }
1446 if (!(options & F_FLOOD)) {
1447 (void)putchar('\n');
1448 (void)fflush(stdout);
1449 }
1450 }
1451
1452 /*
1453 * in_cksum --
1454 * Checksum routine for Internet Protocol family headers (C Version)
1455 */
1456 u_short
1457 in_cksum(u_short *addr, int len)
1458 {
1459 int nleft, sum;
1460 u_short *w;
1461 union {
1462 u_short us;
1463 u_char uc[2];
1464 } last;
1465 u_short answer;
1466
1467 nleft = len;
1468 sum = 0;
1469 w = addr;
1470
1471 /*
1472 * Our algorithm is simple, using a 32 bit accumulator (sum), we add
1473 * sequential 16 bit words to it, and at the end, fold back all the
1474 * carry bits from the top 16 bits into the lower 16 bits.
1475 */
1476 while (nleft > 1) {
1477 sum += *w++;
1478 nleft -= 2;
1479 }
1480
1481 /* mop up an odd byte, if necessary */
1482 if (nleft == 1) {
1483 last.uc[0] = *(u_char *)w;
1484 last.uc[1] = 0;
1485 sum += last.us;
1486 }
1487
1488 /* add back carry outs from top 16 bits to low 16 bits */
1489 sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
1490 sum += (sum >> 16); /* add carry */
1491 answer = ~sum; /* truncate to 16 bits */
1492 return(answer);
1493 }
1494
1495 /*
1496 * tvsub --
1497 * Subtract 2 timeval structs: out = out - in. Out is assumed to
1498 * be >= in.
1499 */
1500 static void
1501 tvsub(struct timeval *out, const struct timeval *in)
1502 {
1503
1504 if ((out->tv_usec -= in->tv_usec) < 0) {
1505 --out->tv_sec;
1506 out->tv_usec += 1000000;
1507 }
1508 out->tv_sec -= in->tv_sec;
1509 }
1510
1511 /*
1512 * status --
1513 * Print out statistics when SIGINFO is received.
1514 */
1515
1516 static void
1517 status(int sig __unused)
1518 {
1519
1520 siginfo_p = 1;
1521 }
1522
1523 static void
1524 check_status(void)
1525 {
1526
1527 if (siginfo_p) {
1528 siginfo_p = 0;
1529 (void)fprintf(stderr, "\r%ld/%ld packets received (%.1f%%)",
1530 nreceived, ntransmitted,
1531 ntransmitted ? nreceived * 100.0 / ntransmitted : 0.0);
1532 if (nreceived && timing)
1533 (void)fprintf(stderr, " %.3f min / %.3f avg / %.3f max",
1534 tmin, tsum / (nreceived + nrepeats), tmax);
1535 (void)fprintf(stderr, "\n");
1536 }
1537 }
1538
1539 /*
1540 * finish --
1541 * Print out statistics, and give up.
1542 */
1543 static void
1544 finish(void)
1545 {
1546
1547 (void)signal(SIGINT, SIG_IGN);
1548 (void)signal(SIGALRM, SIG_IGN);
1549 (void)putchar('\n');
1550 (void)fflush(stdout);
1551 (void)printf("--- %s ping statistics ---\n", hostname);
1552 (void)printf("%ld packets transmitted, ", ntransmitted);
1553 (void)printf("%ld packets received, ", nreceived);
1554 if (nrepeats)
1555 (void)printf("+%ld duplicates, ", nrepeats);
1556 if (ntransmitted) {
1557 if (nreceived > ntransmitted)
1558 (void)printf("-- somebody's printing up packets!");
1559 else
1560 (void)printf("%.1f%% packet loss",
1561 ((ntransmitted - nreceived) * 100.0) /
1562 ntransmitted);
1563 }
1564 if (nrcvtimeout)
1565 (void)printf(", %ld packets out of wait time", nrcvtimeout);
1566 (void)putchar('\n');
1567 if (nreceived && timing) {
1568 double n = nreceived + nrepeats;
1569 double avg = tsum / n;
1570 double vari = tsumsq / n - avg * avg;
1571 (void)printf(
1572 "round-trip min/avg/max/stddev = %.3f/%.3f/%.3f/%.3f ms\n",
1573 tmin, avg, tmax, sqrt(vari));
1574 }
1575
1576 if (nreceived)
1577 exit(0);
1578 else
1579 exit(2);
1580 }
1581
1582 #ifdef notdef
1583 static char *ttab[] = {
1584 "Echo Reply", /* ip + seq + udata */
1585 "Dest Unreachable", /* net, host, proto, port, frag, sr + IP */
1586 "Source Quench", /* IP */
1587 "Redirect", /* redirect type, gateway, + IP */
1588 "Echo",
1589 "Time Exceeded", /* transit, frag reassem + IP */
1590 "Parameter Problem", /* pointer + IP */
1591 "Timestamp", /* id + seq + three timestamps */
1592 "Timestamp Reply", /* " */
1593 "Info Request", /* id + sq */
1594 "Info Reply" /* " */
1595 };
1596 #endif
1597
1598 /*
1599 * pr_icmph --
1600 * Print a descriptive string about an ICMP header.
1601 */
1602 static void
1603 pr_icmph(struct icmp *icp)
1604 {
1605
1606 switch(icp->icmp_type) {
1607 case ICMP_ECHOREPLY:
1608 (void)printf("Echo Reply\n");
1609 /* XXX ID + Seq + Data */
1610 break;
1611 case ICMP_UNREACH:
1612 switch(icp->icmp_code) {
1613 case ICMP_UNREACH_NET:
1614 (void)printf("Destination Net Unreachable\n");
1615 break;
1616 case ICMP_UNREACH_HOST:
1617 (void)printf("Destination Host Unreachable\n");
1618 break;
1619 case ICMP_UNREACH_PROTOCOL:
1620 (void)printf("Destination Protocol Unreachable\n");
1621 break;
1622 case ICMP_UNREACH_PORT:
1623 (void)printf("Destination Port Unreachable\n");
1624 break;
1625 case ICMP_UNREACH_NEEDFRAG:
1626 (void)printf("frag needed and DF set (MTU %d)\n",
1627 ntohs(icp->icmp_nextmtu));
1628 break;
1629 case ICMP_UNREACH_SRCFAIL:
1630 (void)printf("Source Route Failed\n");
1631 break;
1632 case ICMP_UNREACH_FILTER_PROHIB:
1633 (void)printf("Communication prohibited by filter\n");
1634 break;
1635 default:
1636 (void)printf("Dest Unreachable, Bad Code: %d\n",
1637 icp->icmp_code);
1638 break;
1639 }
1640 /* Print returned IP header information */
1641 #ifndef icmp_data
1642 pr_retip(&icp->icmp_ip);
1643 #else
1644 pr_retip((struct ip *)icp->icmp_data);
1645 #endif
1646 break;
1647 case ICMP_SOURCEQUENCH:
1648 (void)printf("Source Quench\n");
1649 #ifndef icmp_data
1650 pr_retip(&icp->icmp_ip);
1651 #else
1652 pr_retip((struct ip *)icp->icmp_data);
1653 #endif
1654 break;
1655 case ICMP_REDIRECT:
1656 switch(icp->icmp_code) {
1657 case ICMP_REDIRECT_NET:
1658 (void)printf("Redirect Network");
1659 break;
1660 case ICMP_REDIRECT_HOST:
1661 (void)printf("Redirect Host");
1662 break;
1663 case ICMP_REDIRECT_TOSNET:
1664 (void)printf("Redirect Type of Service and Network");
1665 break;
1666 case ICMP_REDIRECT_TOSHOST:
1667 (void)printf("Redirect Type of Service and Host");
1668 break;
1669 default:
1670 (void)printf("Redirect, Bad Code: %d", icp->icmp_code);
1671 break;
1672 }
1673 (void)printf("(New addr: %s)\n", inet_ntoa(icp->icmp_gwaddr));
1674 #ifndef icmp_data
1675 pr_retip(&icp->icmp_ip);
1676 #else
1677 pr_retip((struct ip *)icp->icmp_data);
1678 #endif
1679 break;
1680 case ICMP_ECHO:
1681 (void)printf("Echo Request\n");
1682 /* XXX ID + Seq + Data */
1683 break;
1684 case ICMP_TIMXCEED:
1685 switch(icp->icmp_code) {
1686 case ICMP_TIMXCEED_INTRANS:
1687 (void)printf("Time to live exceeded\n");
1688 break;
1689 case ICMP_TIMXCEED_REASS:
1690 (void)printf("Frag reassembly time exceeded\n");
1691 break;
1692 default:
1693 (void)printf("Time exceeded, Bad Code: %d\n",
1694 icp->icmp_code);
1695 break;
1696 }
1697 #ifndef icmp_data
1698 pr_retip(&icp->icmp_ip);
1699 #else
1700 pr_retip((struct ip *)icp->icmp_data);
1701 #endif
1702 break;
1703 case ICMP_PARAMPROB:
1704 (void)printf("Parameter problem: pointer = 0x%02x\n",
1705 icp->icmp_hun.ih_pptr);
1706 #ifndef icmp_data
1707 pr_retip(&icp->icmp_ip);
1708 #else
1709 pr_retip((struct ip *)icp->icmp_data);
1710 #endif
1711 break;
1712 case ICMP_TSTAMP:
1713 (void)printf("Timestamp\n");
1714 /* XXX ID + Seq + 3 timestamps */
1715 break;
1716 case ICMP_TSTAMPREPLY:
1717 (void)printf("Timestamp Reply\n");
1718 /* XXX ID + Seq + 3 timestamps */
1719 break;
1720 case ICMP_IREQ:
1721 (void)printf("Information Request\n");
1722 /* XXX ID + Seq */
1723 break;
1724 case ICMP_IREQREPLY:
1725 (void)printf("Information Reply\n");
1726 /* XXX ID + Seq */
1727 break;
1728 case ICMP_MASKREQ:
1729 (void)printf("Address Mask Request\n");
1730 break;
1731 case ICMP_MASKREPLY:
1732 (void)printf("Address Mask Reply\n");
1733 break;
1734 case ICMP_ROUTERADVERT:
1735 (void)printf("Router Advertisement\n");
1736 break;
1737 case ICMP_ROUTERSOLICIT:
1738 (void)printf("Router Solicitation\n");
1739 break;
1740 default:
1741 (void)printf("Bad ICMP type: %d\n", icp->icmp_type);
1742 }
1743 }
1744
1745 /*
1746 * pr_iph --
1747 * Print an IP header with options.
1748 */
1749 static void
1750 pr_iph(struct ip *ip)
1751 {
1752 u_char *cp;
1753 int hlen;
1754
1755 hlen = ip->ip_hl << 2;
1756 cp = (u_char *)ip + 20; /* point to options */
1757
1758 (void)printf("Vr HL TOS Len ID Flg off TTL Pro cks Src Dst\n");
1759 (void)printf(" %1x %1x %02x %04x %04x",
1760 ip->ip_v, ip->ip_hl, ip->ip_tos, ntohs(ip->ip_len),
1761 ntohs(ip->ip_id));
1762 (void)printf(" %1lx %04lx",
1763 (u_long) (ntohl(ip->ip_off) & 0xe000) >> 13,
1764 (u_long) ntohl(ip->ip_off) & 0x1fff);
1765 (void)printf(" %02x %02x %04x", ip->ip_ttl, ip->ip_p,
1766 ntohs(ip->ip_sum));
1767 (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_src.s_addr));
1768 (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_dst.s_addr));
1769 /* dump any option bytes */
1770 while (hlen-- > 20) {
1771 (void)printf("%02x", *cp++);
1772 }
1773 (void)putchar('\n');
1774 }
1775
1776 /*
1777 * pr_addr --
1778 * Return an ascii host address as a dotted quad and optionally with
1779 * a hostname.
1780 */
1781 static char *
1782 pr_addr(struct in_addr ina)
1783 {
1784 struct hostent *hp;
1785 static char buf[16 + 3 + MAXHOSTNAMELEN];
1786
1787 if ((options & F_NUMERIC) ||
1788 !(hp = gethostbyaddr((char *)&ina, 4, AF_INET)))
1789 return inet_ntoa(ina);
1790 else
1791 (void)snprintf(buf, sizeof(buf), "%s (%s)", hp->h_name,
1792 inet_ntoa(ina));
1793 return(buf);
1794 }
1795
1796 /*
1797 * pr_retip --
1798 * Dump some info on a returned (via ICMP) IP packet.
1799 */
1800 static void
1801 pr_retip(struct ip *ip)
1802 {
1803 u_char *cp;
1804 int hlen;
1805
1806 pr_iph(ip);
1807 hlen = ip->ip_hl << 2;
1808 cp = (u_char *)ip + hlen;
1809
1810 if (ip->ip_p == 6)
1811 (void)printf("TCP: from port %u, to port %u (decimal)\n",
1812 (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
1813 else if (ip->ip_p == 17)
1814 (void)printf("UDP: from port %u, to port %u (decimal)\n",
1815 (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
1816 }
1817
1818 static char *
1819 pr_ntime(n_time timestamp)
1820 {
1821 static char buf[10];
1822 int hour, min, sec;
1823
1824 sec = ntohl(timestamp) / 1000;
1825 hour = sec / 60 / 60;
1826 min = (sec % (60 * 60)) / 60;
1827 sec = (sec % (60 * 60)) % 60;
1828
1829 (void)snprintf(buf, sizeof(buf), "%02d:%02d:%02d", hour, min, sec);
1830
1831 return (buf);
1832 }
1833
1834 static void
1835 fill(char *bp, char *patp)
1836 {
1837 char *cp;
1838 int pat[16];
1839 u_int ii, jj, kk;
1840
1841 for (cp = patp; *cp; cp++) {
1842 if (!isxdigit(*cp))
1843 errx(EX_USAGE,
1844 "patterns must be specified as hex digits");
1845
1846 }
1847 ii = sscanf(patp,
1848 "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
1849 &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
1850 &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
1851 &pat[13], &pat[14], &pat[15]);
1852
1853 if (ii > 0)
1854 for (kk = 0; kk <= maxpayload - (TIMEVAL_LEN + ii); kk += ii)
1855 for (jj = 0; jj < ii; ++jj)
1856 bp[jj + kk] = pat[jj];
1857 if (!(options & F_QUIET)) {
1858 (void)printf("PATTERN: 0x");
1859 for (jj = 0; jj < ii; ++jj)
1860 (void)printf("%02x", bp[jj] & 0xFF);
1861 (void)printf("\n");
1862 }
1863 }
1864
1865 uint32_t
1866 str2svc(const char *str)
1867 {
1868 uint32_t svc;
1869 char *endptr;
1870
1871 if (str == NULL || *str == '\0')
1872 svc = UINT32_MAX;
1873 else if (strcasecmp(str, "BK_SYS") == 0)
1874 return SO_TC_BK_SYS;
1875 else if (strcasecmp(str, "BK") == 0)
1876 return SO_TC_BK;
1877 else if (strcasecmp(str, "BE") == 0)
1878 return SO_TC_BE;
1879 else if (strcasecmp(str, "RD") == 0)
1880 return SO_TC_RD;
1881 else if (strcasecmp(str, "OAM") == 0)
1882 return SO_TC_OAM;
1883 else if (strcasecmp(str, "AV") == 0)
1884 return SO_TC_AV;
1885 else if (strcasecmp(str, "RV") == 0)
1886 return SO_TC_RV;
1887 else if (strcasecmp(str, "VI") == 0)
1888 return SO_TC_VI;
1889 else if (strcasecmp(str, "VO") == 0)
1890 return SO_TC_VO;
1891 else if (strcasecmp(str, "CTL") == 0)
1892 return SO_TC_CTL;
1893 else {
1894 svc = strtoul(str, &endptr, 0);
1895 if (*endptr != '\0')
1896 svc = UINT32_MAX;
1897 }
1898 return (svc);
1899 }
1900
1901 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
1902 #define SECOPT " [-P policy]"
1903 #else
1904 #define SECOPT ""
1905 #endif
1906 static void
1907 usage(void)
1908 {
1909
1910 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
1911 "usage: ping [-AaDdfnoQqRrv] [-b boundif] [-c count] [-G sweepmaxsize]",
1912 " [-g sweepminsize] [-h sweepincrsize] [-i wait] [−k trafficclass]",
1913 " [-l preload] [-M mask | time] [-m ttl]" SECOPT " [-p pattern]",
1914 " [-S src_addr] [-s packetsize] [-t timeout][-W waittime] [-z tos]",
1915 " host",
1916 " ping [-AaDdfLnoQqRrv] [-b boundif] [-c count] [-I iface] [-i wait]",
1917 " [−k trafficclass] [-l preload] [-M mask | time] [-m ttl]" SECOPT " [-p pattern] [-S src_addr]",
1918 " [-s packetsize] [-T ttl] [-t timeout] [-W waittime]",
1919 " [-z tos] mcast-group");
1920 exit(EX_USAGE);
1921 }
mirror of network_cmds