ping.c revision 93035
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1989, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * This code is derived from software contributed to Berkeley by 61558Srgrimes * Mike Muuss. 71558Srgrimes * 81558Srgrimes * Redistribution and use in source and binary forms, with or without 91558Srgrimes * modification, are permitted provided that the following conditions 101558Srgrimes * are met: 111558Srgrimes * 1. Redistributions of source code must retain the above copyright 121558Srgrimes * notice, this list of conditions and the following disclaimer. 131558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141558Srgrimes * notice, this list of conditions and the following disclaimer in the 151558Srgrimes * documentation and/or other materials provided with the distribution. 161558Srgrimes * 3. All advertising materials mentioning features or use of this software 171558Srgrimes * must display the following acknowledgement: 181558Srgrimes * This product includes software developed by the University of 191558Srgrimes * California, Berkeley and its contributors. 201558Srgrimes * 4. Neither the name of the University nor the names of its contributors 211558Srgrimes * may be used to endorse or promote products derived from this software 221558Srgrimes * without specific prior written permission. 231558Srgrimes * 241558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341558Srgrimes * SUCH DAMAGE. 351558Srgrimes */ 361558Srgrimes 371558Srgrimes#ifndef lint 3823247Swollmanstatic const char copyright[] = 391558Srgrimes"@(#) Copyright (c) 1989, 1993\n\ 401558Srgrimes The Regents of the University of California. All rights reserved.\n"; 411558Srgrimes#endif /* not lint */ 421558Srgrimes 431558Srgrimes#ifndef lint 4437671Scharnier#if 0 451558Srgrimesstatic char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93"; 4637671Scharnier#endif 4723247Swollmanstatic const char rcsid[] = 4850476Speter "$FreeBSD: head/sbin/ping/ping.c 93035 2002-03-23 18:10:59Z obrien $"; 491558Srgrimes#endif /* not lint */ 501558Srgrimes 511558Srgrimes/* 521558Srgrimes * P I N G . C 531558Srgrimes * 5437671Scharnier * Using the Internet Control Message Protocol (ICMP) "ECHO" facility, 551558Srgrimes * measure round-trip-delays and packet loss across network paths. 561558Srgrimes * 571558Srgrimes * Author - 581558Srgrimes * Mike Muuss 591558Srgrimes * U. S. Army Ballistic Research Laboratory 601558Srgrimes * December, 1983 611558Srgrimes * 621558Srgrimes * Status - 631558Srgrimes * Public Domain. Distribution Unlimited. 641558Srgrimes * Bugs - 651558Srgrimes * More statistics could always be gathered. 661558Srgrimes * This program has to run SUID to ROOT to access the ICMP socket. 671558Srgrimes */ 681558Srgrimes 6923247Swollman#include <sys/param.h> /* NB: we rely on this for <sys/types.h> */ 7023247Swollman 7123247Swollman#include <ctype.h> 7223247Swollman#include <err.h> 7323247Swollman#include <errno.h> 7427508Swollman#include <math.h> 7523247Swollman#include <netdb.h> 7623247Swollman#include <signal.h> 7723247Swollman#include <stdio.h> 7823247Swollman#include <stdlib.h> 7923247Swollman#include <string.h> 8023247Swollman#include <sysexits.h> 8123247Swollman#include <termios.h> 8223247Swollman#include <unistd.h> 8323247Swollman 841558Srgrimes#include <sys/socket.h> 851558Srgrimes#include <sys/time.h> 8636378Sfenner#include <sys/uio.h> 871558Srgrimes 8823247Swollman#include <netinet/in.h> 891558Srgrimes#include <netinet/in_systm.h> 901558Srgrimes#include <netinet/ip.h> 911558Srgrimes#include <netinet/ip_icmp.h> 921558Srgrimes#include <netinet/ip_var.h> 9323247Swollman#include <arpa/inet.h> 941558Srgrimes 9555505Sshin#ifdef IPSEC 9655505Sshin#include <netinet6/ipsec.h> 9755505Sshin#endif /*IPSEC*/ 9855505Sshin 9936089Sjb#define PHDR_LEN sizeof(struct timeval) 10036089Sjb#define DEFDATALEN (64 - PHDR_LEN) /* default data length */ 10127533Sbde#define FLOOD_BACKOFF 20000 /* usecs to back off if F_FLOOD mode */ 10227533Sbde /* runs out of buffer space */ 1031558Srgrimes#define MAXIPLEN 60 1041558Srgrimes#define MAXICMPLEN 76 1051558Srgrimes#define MAXPACKET (65536 - 60 - 8)/* max packet size */ 1061558Srgrimes#define MAXWAIT 10 /* max seconds to wait for response */ 10756342Sbillf#define MAXALARM (60 * 60) /* max seconds for alarm timeout */ 1081558Srgrimes#define NROUTES 9 /* number of record route slots */ 1091558Srgrimes 1101558Srgrimes#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */ 1111558Srgrimes#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */ 1121558Srgrimes#define SET(bit) (A(bit) |= B(bit)) 1131558Srgrimes#define CLR(bit) (A(bit) &= (~B(bit))) 1141558Srgrimes#define TST(bit) (A(bit) & B(bit)) 1151558Srgrimes 1161558Srgrimes/* various options */ 1171558Srgrimesint options; 11820540Sfenner#define F_FLOOD 0x0001 11920540Sfenner#define F_INTERVAL 0x0002 12020540Sfenner#define F_NUMERIC 0x0004 12120540Sfenner#define F_PINGFILLED 0x0008 12220540Sfenner#define F_QUIET 0x0010 12320540Sfenner#define F_RROUTE 0x0020 12420540Sfenner#define F_SO_DEBUG 0x0040 12520540Sfenner#define F_SO_DONTROUTE 0x0080 12620540Sfenner#define F_VERBOSE 0x0100 12720540Sfenner#define F_QUIET2 0x0200 12820540Sfenner#define F_NOLOOP 0x0400 12920540Sfenner#define F_MTTL 0x0800 13020540Sfenner#define F_MIF 0x1000 13122417Sdanny#define F_AUDIBLE 0x2000 13255505Sshin#ifdef IPSEC 13355505Sshin#ifdef IPSEC_POLICY_IPSEC 13455505Sshin#define F_POLICY 0x4000 13555505Sshin#endif /*IPSEC_POLICY_IPSEC*/ 13655505Sshin#endif /*IPSEC*/ 13774029Sru#define F_TTL 0x8000 13877119Sphk#define F_MISSED 0x10000 1391558Srgrimes 1401558Srgrimes/* 1411558Srgrimes * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum 1421558Srgrimes * number of received sequence numbers we can keep track of. Change 128 1431558Srgrimes * to 8192 for complete accuracy... 1441558Srgrimes */ 1451558Srgrimes#define MAX_DUP_CHK (8 * 128) 1461558Srgrimesint mx_dup_ck = MAX_DUP_CHK; 1471558Srgrimeschar rcvd_tbl[MAX_DUP_CHK / 8]; 1481558Srgrimes 14979403Smjacobstruct sockaddr_in whereto; /* who to ping */ 1501558Srgrimesint datalen = DEFDATALEN; 1511558Srgrimesint s; /* socket file descriptor */ 1521558Srgrimesu_char outpack[MAXPACKET]; 1531558Srgrimeschar BSPACE = '\b'; /* characters written for flood */ 15477119Sphkchar BBELL = '\a'; /* characters written for MISSED and AUDIBLE */ 1551558Srgrimeschar DOT = '.'; 1561558Srgrimeschar *hostname; 15742337Simpchar *shostname; 1581558Srgrimesint ident; /* process id to identify our packets */ 15923295Simpint uid; /* cached uid for micro-optimization */ 1601558Srgrimes 1611558Srgrimes/* counters */ 1621558Srgrimeslong npackets; /* max packets to transmit */ 1631558Srgrimeslong nreceived; /* # of packets we got back */ 1641558Srgrimeslong nrepeats; /* number of duplicates */ 1651558Srgrimeslong ntransmitted; /* sequence # for outbound packets = #sent */ 16683940Siedowselong nmissedmax; /* max value of ntransmitted - nreceived - 1 */ 16738549Sdillonint interval = 1000; /* interval between packets, ms */ 1681558Srgrimes 1691558Srgrimes/* timing */ 1701558Srgrimesint timing; /* flag to do timing */ 1711558Srgrimesdouble tmin = 999999999.0; /* minimum round trip time */ 1721558Srgrimesdouble tmax = 0.0; /* maximum round trip time */ 1731558Srgrimesdouble tsum = 0.0; /* sum of all times, for doing average */ 17427508Swollmandouble tsumsq = 0.0; /* sum of all times squared, for std. dev. */ 1751558Srgrimes 17627533Sbdevolatile sig_atomic_t finish_up; /* nonzero if we've been told to finish up */ 1773792Ssefint reset_kerninfo; 17827533Sbdevolatile sig_atomic_t siginfo_p; 1793792Ssef 18023247Swollmanstatic void fill(char *, char *); 18123247Swollmanstatic u_short in_cksum(u_short *, int); 18223247Swollmanstatic void check_status(void); 18327533Sbdestatic void finish(void) __dead2; 18423247Swollmanstatic void pinger(void); 18523247Swollmanstatic char *pr_addr(struct in_addr); 18623247Swollmanstatic void pr_icmph(struct icmp *); 18723247Swollmanstatic void pr_iph(struct ip *); 18836378Sfennerstatic void pr_pack(char *, int, struct sockaddr_in *, struct timeval *); 18923247Swollmanstatic void pr_retip(struct ip *); 19023247Swollmanstatic void status(int); 19127533Sbdestatic void stopit(int); 19223247Swollmanstatic void tvsub(struct timeval *, struct timeval *); 19337671Scharnierstatic void usage(void) __dead2; 1941558Srgrimes 19523247Swollmanint 1961558Srgrimesmain(argc, argv) 1971558Srgrimes int argc; 19823247Swollman char *const *argv; 1991558Srgrimes{ 20093035Sobrien struct in_addr ifaddr; 20193035Sobrien struct iovec iov; 20293035Sobrien struct msghdr msg; 20393035Sobrien struct sigaction si_sa; 20493035Sobrien struct sockaddr_in from, sin; 20593035Sobrien struct termios ts; 20636378Sfenner struct timeval last, intvl; 2071558Srgrimes struct hostent *hp; 20893035Sobrien struct sockaddr_in *to; 2091558Srgrimes u_char *datap, *packet; 21093035Sobrien char *ep, *source, *target; 21193035Sobrien#ifdef IPSEC_POLICY_IPSEC 21293035Sobrien char *policy_in, *policy_out; 21393035Sobrien#endif 21493035Sobrien u_long alarmtimeout, ultmp; 21593035Sobrien int ch, hold, i, packlen, preload, sockerrno, almost_done = 0, ttl; 21693035Sobrien char ctrl[CMSG_SPACE(sizeof(struct timeval))]; 21793035Sobrien char hnamebuf[MAXHOSTNAMELEN], snamebuf[MAXHOSTNAMELEN]; 2181558Srgrimes#ifdef IP_OPTIONS 2191558Srgrimes char rspace[3 + 4 * NROUTES + 1]; /* record route space */ 2201558Srgrimes#endif 22193035Sobrien unsigned char mttl, loop; 22293035Sobrien 22393035Sobrien source = NULL; 22455505Sshin#ifdef IPSEC_POLICY_IPSEC 22593035Sobrien policy_in = policy_out = NULL; 22655505Sshin#endif 2271558Srgrimes 22817474Sfenner /* 22917474Sfenner * Do the stuff that we need root priv's for *first*, and 23017474Sfenner * then drop our setuid bit. Save error reporting for 23117474Sfenner * after arg parsing. 23217474Sfenner */ 23323247Swollman s = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP); 23423247Swollman sockerrno = errno; 23517474Sfenner 23617474Sfenner setuid(getuid()); 23723295Simp uid = getuid(); 23817474Sfenner 23956342Sbillf alarmtimeout = preload = 0; 2403792Ssef 24136089Sjb datap = &outpack[8 + PHDR_LEN]; 24274029Sru while ((ch = getopt(argc, argv, 24377119Sphk "AI:LQRS:T:c:adfi:l:m:np:qrs:t:v" 24474029Sru#ifdef IPSEC 24555505Sshin#ifdef IPSEC_POLICY_IPSEC 24674029Sru "P:" 24755505Sshin#endif /*IPSEC_POLICY_IPSEC*/ 24874029Sru#endif /*IPSEC*/ 24974029Sru )) != -1) 25055505Sshin { 2511558Srgrimes switch(ch) { 25277119Sphk case 'A': 25377119Sphk options |= F_MISSED; 25477119Sphk break; 25522417Sdanny case 'a': 25622417Sdanny options |= F_AUDIBLE; 25722417Sdanny break; 2581558Srgrimes case 'c': 25923247Swollman ultmp = strtoul(optarg, &ep, 0); 26023247Swollman if (*ep || ep == optarg || ultmp > LONG_MAX || !ultmp) 26123247Swollman errx(EX_USAGE, 26223247Swollman "invalid count of packets to transmit: `%s'", 26323247Swollman optarg); 26423247Swollman npackets = ultmp; 2651558Srgrimes break; 2661558Srgrimes case 'd': 2671558Srgrimes options |= F_SO_DEBUG; 2681558Srgrimes break; 2691558Srgrimes case 'f': 27038549Sdillon if (uid) { 27123247Swollman errno = EPERM; 27223247Swollman err(EX_NOPERM, "-f flag"); 2731558Srgrimes } 2741558Srgrimes options |= F_FLOOD; 2751558Srgrimes setbuf(stdout, (char *)NULL); 2761558Srgrimes break; 2771558Srgrimes case 'i': /* wait between sending packets */ 27838549Sdillon { 27938549Sdillon double t = strtod(optarg, &ep) * 1000.0; 28038549Sdillon 28138549Sdillon if (*ep || ep == optarg || t > (double)INT_MAX) { 28238549Sdillon errx( 28338549Sdillon EX_USAGE, 28438549Sdillon "invalid timing interval: `%s'", 28538549Sdillon optarg 28638549Sdillon ); 28738549Sdillon } 28838549Sdillon options |= F_INTERVAL; 28938549Sdillon interval = (int)t; 29038549Sdillon if (uid && interval < 1000) { 29138549Sdillon errno = EPERM; 29238549Sdillon err(EX_NOPERM, "-i interval too short"); 29338549Sdillon } 29438549Sdillon } 2951558Srgrimes break; 29620540Sfenner case 'I': /* multicast interface */ 29723247Swollman if (inet_aton(optarg, &ifaddr) == 0) 29823247Swollman errx(EX_USAGE, 29923247Swollman "invalid multicast interface: `%s'", 30023247Swollman optarg); 30120540Sfenner options |= F_MIF; 30220540Sfenner break; 3031558Srgrimes case 'l': 30423247Swollman ultmp = strtoul(optarg, &ep, 0); 30523247Swollman if (*ep || ep == optarg || ultmp > INT_MAX) 30623247Swollman errx(EX_USAGE, 30723247Swollman "invalid preload value: `%s'", optarg); 30846643Smckay if (uid) { 30923251Simp errno = EPERM; 31023251Simp err(EX_NOPERM, "-l flag"); 31123251Simp } 31223247Swollman preload = ultmp; 3131558Srgrimes break; 31420540Sfenner case 'L': 31520540Sfenner options |= F_NOLOOP; 31620540Sfenner loop = 0; 31720540Sfenner break; 31874029Sru case 'm': /* TTL */ 31974029Sru ultmp = strtoul(optarg, &ep, 0); 32074029Sru if (*ep || ep == optarg || ultmp > 255) 32174029Sru errx(EX_USAGE, "invalid TTL: `%s'", 32274029Sru optarg); 32374029Sru ttl = ultmp; 32474029Sru options |= F_TTL; 32574029Sru break; 3261558Srgrimes case 'n': 3271558Srgrimes options |= F_NUMERIC; 3281558Srgrimes break; 3291558Srgrimes case 'p': /* fill buffer with user pattern */ 3301558Srgrimes options |= F_PINGFILLED; 3311558Srgrimes fill((char *)datap, optarg); 3321558Srgrimes break; 33317724Sfenner case 'Q': 33417724Sfenner options |= F_QUIET2; 33517724Sfenner break; 3361558Srgrimes case 'q': 3371558Srgrimes options |= F_QUIET; 3381558Srgrimes break; 3391558Srgrimes case 'R': 3401558Srgrimes options |= F_RROUTE; 3411558Srgrimes break; 3421558Srgrimes case 'r': 3431558Srgrimes options |= F_SO_DONTROUTE; 3441558Srgrimes break; 3451558Srgrimes case 's': /* size of packet to send */ 34638549Sdillon if (uid) { 34738549Sdillon errno = EPERM; 34838549Sdillon err(EX_NOPERM, "-s flag"); 34938549Sdillon } 35023247Swollman ultmp = strtoul(optarg, &ep, 0); 35123247Swollman if (ultmp > MAXPACKET) 35223247Swollman errx(EX_USAGE, "packet size too large: %lu", 35323247Swollman ultmp); 35423247Swollman if (*ep || ep == optarg || !ultmp) 35523247Swollman errx(EX_USAGE, "invalid packet size: `%s'", 35623247Swollman optarg); 35723247Swollman datalen = ultmp; 3581558Srgrimes break; 35942337Simp case 'S': 36042337Simp source = optarg; 36142337Simp break; 36255996Sbillf case 't': 36356342Sbillf alarmtimeout = strtoul(optarg, &ep, 0); 36456342Sbillf if ((alarmtimeout < 1) || (alarmtimeout == ULONG_MAX)) 36555996Sbillf errx(EX_USAGE, "invalid timeout: `%s'", 36655996Sbillf optarg); 36756342Sbillf if (alarmtimeout > MAXALARM) 36856342Sbillf errx(EX_USAGE, "invalid timeout: `%s' > %d", 36956342Sbillf optarg, MAXALARM); 37056342Sbillf alarm((int)alarmtimeout); 37155996Sbillf break; 37220540Sfenner case 'T': /* multicast TTL */ 37323247Swollman ultmp = strtoul(optarg, &ep, 0); 37423247Swollman if (*ep || ep == optarg || ultmp > 255) 37523247Swollman errx(EX_USAGE, "invalid multicast TTL: `%s'", 37623247Swollman optarg); 37774029Sru mttl = ultmp; 37820540Sfenner options |= F_MTTL; 37920540Sfenner break; 3801558Srgrimes case 'v': 3811558Srgrimes options |= F_VERBOSE; 3821558Srgrimes break; 38355505Sshin#ifdef IPSEC 38455505Sshin#ifdef IPSEC_POLICY_IPSEC 38555505Sshin case 'P': 38655505Sshin options |= F_POLICY; 38755505Sshin if (!strncmp("in", optarg, 2)) 38855505Sshin policy_in = strdup(optarg); 38955505Sshin else if (!strncmp("out", optarg, 3)) 39055505Sshin policy_out = strdup(optarg); 39155505Sshin else 39255505Sshin errx(1, "invalid security policy"); 39355505Sshin break; 39455505Sshin#endif /*IPSEC_POLICY_IPSEC*/ 39555505Sshin#endif /*IPSEC*/ 3961558Srgrimes default: 39737671Scharnier usage(); 3981558Srgrimes } 39923247Swollman } 4001558Srgrimes 40123247Swollman if (argc - optind != 1) 40237671Scharnier usage(); 40323247Swollman target = argv[optind]; 4041558Srgrimes 40542337Simp if (source) { 40642337Simp bzero((char *)&sin, sizeof(sin)); 40742337Simp sin.sin_family = AF_INET; 40842337Simp if (inet_aton(source, &sin.sin_addr) != 0) { 40942337Simp shostname = source; 41042337Simp } else { 41142337Simp hp = gethostbyname2(source, AF_INET); 41242337Simp if (!hp) 41342337Simp errx(EX_NOHOST, "cannot resolve %s: %s", 41442337Simp source, hstrerror(h_errno)); 41542337Simp 41642337Simp sin.sin_len = sizeof sin; 41742337Simp if (hp->h_length > sizeof(sin.sin_addr)) 41842337Simp errx(1,"gethostbyname2: illegal address"); 41942337Simp memcpy(&sin.sin_addr, hp->h_addr_list[0], 42042337Simp sizeof (sin.sin_addr)); 42142337Simp (void)strncpy(snamebuf, hp->h_name, 42242337Simp sizeof(snamebuf) - 1); 42342337Simp snamebuf[sizeof(snamebuf) - 1] = '\0'; 42442337Simp shostname = snamebuf; 42542337Simp } 42642337Simp if (bind(s, (struct sockaddr *)&sin, sizeof sin) == -1) 42742337Simp err(1, "bind"); 42842337Simp } 42942337Simp 43079403Smjacob bzero(&whereto, sizeof(whereto)); 43179403Smjacob to = &whereto; 4321558Srgrimes to->sin_family = AF_INET; 43379403Smjacob to->sin_len = sizeof *to; 43423247Swollman if (inet_aton(target, &to->sin_addr) != 0) { 4351558Srgrimes hostname = target; 43623247Swollman } else { 43723247Swollman hp = gethostbyname2(target, AF_INET); 43823247Swollman if (!hp) 43923247Swollman errx(EX_NOHOST, "cannot resolve %s: %s", 44023247Swollman target, hstrerror(h_errno)); 44123247Swollman 44223327Simp if (hp->h_length > sizeof(to->sin_addr)) 44323327Simp errx(1,"gethostbyname2 returned an illegal address"); 44423247Swollman memcpy(&to->sin_addr, hp->h_addr_list[0], sizeof to->sin_addr); 4451558Srgrimes (void)strncpy(hnamebuf, hp->h_name, sizeof(hnamebuf) - 1); 44631956Simp hnamebuf[sizeof(hnamebuf) - 1] = '\0'; 4471558Srgrimes hostname = hnamebuf; 4481558Srgrimes } 4491558Srgrimes 45023247Swollman if (options & F_FLOOD && options & F_INTERVAL) 45123247Swollman errx(EX_USAGE, "-f and -i: incompatible options"); 4521558Srgrimes 45323247Swollman if (options & F_FLOOD && IN_MULTICAST(ntohl(to->sin_addr.s_addr))) 45423247Swollman errx(EX_USAGE, 45523247Swollman "-f flag cannot be used with multicast destination"); 45623247Swollman if (options & (F_MIF | F_NOLOOP | F_MTTL) 45723247Swollman && !IN_MULTICAST(ntohl(to->sin_addr.s_addr))) 45823247Swollman errx(EX_USAGE, 45923247Swollman "-I, -L, -T flags cannot be used with unicast destination"); 46023247Swollman 46136089Sjb if (datalen >= PHDR_LEN) /* can we time transfer */ 4621558Srgrimes timing = 1; 4631558Srgrimes packlen = datalen + MAXIPLEN + MAXICMPLEN; 46423247Swollman if (!(packet = (u_char *)malloc((size_t)packlen))) 46523247Swollman err(EX_UNAVAILABLE, "malloc"); 46623247Swollman 4671558Srgrimes if (!(options & F_PINGFILLED)) 46836089Sjb for (i = PHDR_LEN; i < datalen; ++i) 4691558Srgrimes *datap++ = i; 4701558Srgrimes 4711558Srgrimes ident = getpid() & 0xFFFF; 4721558Srgrimes 47317474Sfenner if (s < 0) { 47417474Sfenner errno = sockerrno; 47523247Swollman err(EX_OSERR, "socket"); 4761558Srgrimes } 4771558Srgrimes hold = 1; 4781558Srgrimes if (options & F_SO_DEBUG) 4791558Srgrimes (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold, 4801558Srgrimes sizeof(hold)); 4811558Srgrimes if (options & F_SO_DONTROUTE) 4821558Srgrimes (void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&hold, 4831558Srgrimes sizeof(hold)); 48455505Sshin#ifdef IPSEC 48555505Sshin#ifdef IPSEC_POLICY_IPSEC 48655505Sshin if (options & F_POLICY) { 48755505Sshin char *buf; 48855505Sshin if (policy_in != NULL) { 48955505Sshin buf = ipsec_set_policy(policy_in, strlen(policy_in)); 49055505Sshin if (buf == NULL) 49168905Skris errx(EX_CONFIG, "%s", ipsec_strerror()); 49255505Sshin if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY, 49355505Sshin buf, ipsec_get_policylen(buf)) < 0) 49455505Sshin err(EX_CONFIG, "ipsec policy cannot be configured"); 49555505Sshin free(buf); 49655505Sshin } 4971558Srgrimes 49855505Sshin if (policy_out != NULL) { 49955505Sshin buf = ipsec_set_policy(policy_out, strlen(policy_out)); 50055505Sshin if (buf == NULL) 50168905Skris errx(EX_CONFIG, "%s", ipsec_strerror()); 50255505Sshin if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY, 50355505Sshin buf, ipsec_get_policylen(buf)) < 0) 50455505Sshin err(EX_CONFIG, "ipsec policy cannot be configured"); 50555505Sshin free(buf); 50655505Sshin } 50755505Sshin } 50855505Sshin#endif /*IPSEC_POLICY_IPSEC*/ 50955505Sshin#endif /*IPSEC*/ 51055505Sshin 5111558Srgrimes /* record route option */ 5121558Srgrimes if (options & F_RROUTE) { 5131558Srgrimes#ifdef IP_OPTIONS 51436378Sfenner bzero(rspace, sizeof(rspace)); 5151558Srgrimes rspace[IPOPT_OPTVAL] = IPOPT_RR; 51636378Sfenner rspace[IPOPT_OLEN] = sizeof(rspace) - 1; 5171558Srgrimes rspace[IPOPT_OFFSET] = IPOPT_MINOFF; 51836378Sfenner rspace[sizeof(rspace) - 1] = IPOPT_EOL; 5191558Srgrimes if (setsockopt(s, IPPROTO_IP, IP_OPTIONS, rspace, 52023247Swollman sizeof(rspace)) < 0) 52123247Swollman err(EX_OSERR, "setsockopt IP_OPTIONS"); 5221558Srgrimes#else 52323247Swollman errx(EX_UNAVAILABLE, 52423247Swollman "record route not available in this implementation"); 5251558Srgrimes#endif /* IP_OPTIONS */ 5261558Srgrimes } 5271558Srgrimes 52874029Sru if (options & F_TTL) { 52974029Sru if (setsockopt(s, IPPROTO_IP, IP_TTL, &ttl, 53074029Sru sizeof(ttl)) < 0) { 53174029Sru err(EX_OSERR, "setsockopt IP_TTL"); 53274029Sru } 53374029Sru } 53420540Sfenner if (options & F_NOLOOP) { 53520540Sfenner if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, 53620540Sfenner sizeof(loop)) < 0) { 53723247Swollman err(EX_OSERR, "setsockopt IP_MULTICAST_LOOP"); 53820540Sfenner } 53920540Sfenner } 54020540Sfenner if (options & F_MTTL) { 54174029Sru if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &mttl, 54274029Sru sizeof(mttl)) < 0) { 54323247Swollman err(EX_OSERR, "setsockopt IP_MULTICAST_TTL"); 54420540Sfenner } 54520540Sfenner } 54620540Sfenner if (options & F_MIF) { 54720540Sfenner if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, &ifaddr, 54820540Sfenner sizeof(ifaddr)) < 0) { 54923247Swollman err(EX_OSERR, "setsockopt IP_MULTICAST_IF"); 55020540Sfenner } 55120540Sfenner } 55236378Sfenner#ifdef SO_TIMESTAMP 55336378Sfenner { int on = 1; 55436378Sfenner if (setsockopt(s, SOL_SOCKET, SO_TIMESTAMP, &on, sizeof(on)) < 0) 55536378Sfenner err(EX_OSERR, "setsockopt SO_TIMESTAMP"); 55636378Sfenner } 55736378Sfenner#endif 55820540Sfenner 5591558Srgrimes /* 5601558Srgrimes * When pinging the broadcast address, you can get a lot of answers. 5611558Srgrimes * Doing something so evil is useful if you are trying to stress the 5621558Srgrimes * ethernet, or just want to fill the arp cache to get some stuff for 56323247Swollman * /etc/ethers. But beware: RFC 1122 allows hosts to ignore broadcast 56423247Swollman * or multicast pings if they wish. 5651558Srgrimes */ 5661558Srgrimes hold = 48 * 1024; 5671558Srgrimes (void)setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold, 5681558Srgrimes sizeof(hold)); 5691558Srgrimes 57079018Srwatson if (!uid) { 57179018Srwatson (void)setsockopt(s, SOL_SOCKET, SO_SNDBUF, (char *)&hold, 57279018Srwatson sizeof(hold)); 57379018Srwatson } 57479018Srwatson 57542337Simp if (to->sin_family == AF_INET) { 57642337Simp (void)printf("PING %s (%s)", hostname, 57742337Simp inet_ntoa(to->sin_addr)); 57842337Simp if (source) 57942337Simp (void)printf(" from %s", shostname); 58042337Simp (void)printf(": %d data bytes\n", datalen); 58142337Simp } else 5821558Srgrimes (void)printf("PING %s: %d data bytes\n", hostname, datalen); 5831558Srgrimes 58420280Sbde /* 58527354Ssef * Use sigaction() instead of signal() to get unambiguous semantics, 58627354Ssef * in particular with SA_RESTART not set. 58720280Sbde */ 58827354Ssef 58920205Spst sigemptyset(&si_sa.sa_mask); 59020195Ssef si_sa.sa_flags = 0; 59127354Ssef 59227354Ssef si_sa.sa_handler = stopit; 59327354Ssef if (sigaction(SIGINT, &si_sa, 0) == -1) { 59427354Ssef err(EX_OSERR, "sigaction SIGINT"); 59527354Ssef } 59627354Ssef 59727354Ssef si_sa.sa_handler = status; 59820195Ssef if (sigaction(SIGINFO, &si_sa, 0) == -1) { 59923385Simp err(EX_OSERR, "sigaction"); 60020195Ssef } 60120195Ssef 60256342Sbillf if (alarmtimeout > 0) { 60356342Sbillf si_sa.sa_handler = stopit; 60456342Sbillf if (sigaction(SIGALRM, &si_sa, 0) == -1) 60556342Sbillf err(EX_OSERR, "sigaction SIGALRM"); 60656342Sbillf } 60756342Sbillf 60836378Sfenner bzero(&msg, sizeof(msg)); 60936378Sfenner msg.msg_name = (caddr_t)&from; 61036378Sfenner msg.msg_iov = &iov; 61136378Sfenner msg.msg_iovlen = 1; 61236378Sfenner#ifdef SO_TIMESTAMP 61336378Sfenner msg.msg_control = (caddr_t)ctrl; 61436378Sfenner#endif 61536378Sfenner iov.iov_base = packet; 61636378Sfenner iov.iov_len = packlen; 61736378Sfenner 61819864Ssef if (tcgetattr(STDOUT_FILENO, &ts) != -1) { 61919864Ssef reset_kerninfo = !(ts.c_lflag & NOKERNINFO); 62019864Ssef ts.c_lflag |= NOKERNINFO; 62119864Ssef tcsetattr(STDOUT_FILENO, TCSANOW, &ts); 62219864Ssef } 62319864Ssef 62489349Sru if (preload == 0) 62589349Sru pinger(); /* send the first ping */ 62689349Sru else { 62789349Sru if (npackets != 0 && preload > npackets) 62889349Sru preload = npackets; 62989349Sru while (preload--) /* fire off them quickies */ 63089349Sru pinger(); 63189349Sru } 63289349Sru (void)gettimeofday(&last, NULL); 6331558Srgrimes 63436378Sfenner if (options & F_FLOOD) { 63536378Sfenner intvl.tv_sec = 0; 63636378Sfenner intvl.tv_usec = 10000; 63736378Sfenner } else { 63838549Sdillon intvl.tv_sec = interval / 1000; 63938549Sdillon intvl.tv_usec = interval % 1000 * 1000; 64036378Sfenner } 6411558Srgrimes 64227533Sbde while (!finish_up) { 64392806Sobrien int cc; 64436378Sfenner int n; 64536378Sfenner struct timeval timeout, now; 64636378Sfenner fd_set rfds; 6471558Srgrimes 64820280Sbde check_status(); 64936378Sfenner FD_ZERO(&rfds); 65036378Sfenner FD_SET(s, &rfds); 65136378Sfenner (void)gettimeofday(&now, NULL); 65236378Sfenner timeout.tv_sec = last.tv_sec + intvl.tv_sec - now.tv_sec; 65336378Sfenner timeout.tv_usec = last.tv_usec + intvl.tv_usec - now.tv_usec; 65436378Sfenner while (timeout.tv_usec < 0) { 65536378Sfenner timeout.tv_usec += 1000000; 65636378Sfenner timeout.tv_sec--; 6571558Srgrimes } 65837671Scharnier while (timeout.tv_usec >= 1000000) { 65936378Sfenner timeout.tv_usec -= 1000000; 66036378Sfenner timeout.tv_sec++; 66136378Sfenner } 66236378Sfenner if (timeout.tv_sec < 0) 66336378Sfenner timeout.tv_sec = timeout.tv_usec = 0; 66436378Sfenner n = select(s + 1, &rfds, NULL, NULL, &timeout); 66546643Smckay if (n < 0) 66646643Smckay continue; /* Must be EINTR. */ 66736378Sfenner if (n == 1) { 66836378Sfenner struct timeval *t = 0; 66936378Sfenner#ifdef SO_TIMESTAMP 67036378Sfenner struct cmsghdr *cmsg = (struct cmsghdr *)&ctrl; 67136378Sfenner 67236378Sfenner msg.msg_controllen = sizeof(ctrl); 67336378Sfenner#endif 67436378Sfenner msg.msg_namelen = sizeof(from); 67536378Sfenner if ((cc = recvmsg(s, &msg, 0)) < 0) { 67636378Sfenner if (errno == EINTR) 67736378Sfenner continue; 67837671Scharnier warn("recvmsg"); 6791558Srgrimes continue; 68036378Sfenner } 68136378Sfenner#ifdef SO_TIMESTAMP 68236378Sfenner if (cmsg->cmsg_level == SOL_SOCKET && 68336378Sfenner cmsg->cmsg_type == SCM_TIMESTAMP && 68458068Sshin cmsg->cmsg_len == CMSG_LEN(sizeof *t)) { 68536713Sjb /* Copy to avoid alignment problems: */ 68636713Sjb memcpy(&now,CMSG_DATA(cmsg),sizeof(now)); 68736713Sjb t = &now; 68836713Sjb } 68936378Sfenner#endif 69036378Sfenner if (t == 0) { 69136378Sfenner (void)gettimeofday(&now, NULL); 69236378Sfenner t = &now; 69336378Sfenner } 69436378Sfenner pr_pack((char *)packet, cc, &from, t); 69536378Sfenner if (npackets && nreceived >= npackets) 69636378Sfenner break; 6971558Srgrimes } 69846643Smckay if (n == 0 || options & F_FLOOD) { 69936378Sfenner if (!npackets || ntransmitted < npackets) 70036378Sfenner pinger(); 70136378Sfenner else { 70236378Sfenner if (almost_done) 70336378Sfenner break; 70436378Sfenner almost_done = 1; 70546643Smckay intvl.tv_usec = 0; 70636378Sfenner if (nreceived) { 70736378Sfenner intvl.tv_sec = 2 * tmax / 1000; 70836378Sfenner if (!intvl.tv_sec) 70936378Sfenner intvl.tv_sec = 1; 71036378Sfenner } else 71136378Sfenner intvl.tv_sec = MAXWAIT; 71236378Sfenner } 71336378Sfenner (void)gettimeofday(&last, NULL); 71477119Sphk 71583940Siedowse if (ntransmitted - nreceived - 1 > nmissedmax) { 71683940Siedowse nmissedmax = ntransmitted - nreceived - 1; 71783940Siedowse if (options & F_MISSED) 71883940Siedowse (void)write(STDOUT_FILENO, &BBELL, 1); 71983940Siedowse } 72036378Sfenner } 7211558Srgrimes } 72227533Sbde finish(); 7231558Srgrimes /* NOTREACHED */ 72423251Simp exit(0); /* Make the compiler happy */ 7251558Srgrimes} 7261558Srgrimes 7271558Srgrimes/* 72827533Sbde * stopit -- 72927533Sbde * Set the global bit that causes the main loop to quit. 73027533Sbde * Do NOT call finish() from here, since finish() does far too much 73127533Sbde * to be called from a signal handler. 73227299Sjulian */ 73327299Sjulianvoid 73427533Sbdestopit(sig) 73527533Sbde int sig; 73627299Sjulian{ 73793035Sobrien 73827299Sjulian finish_up = 1; 73927299Sjulian} 74027299Sjulian 74127299Sjulian/* 7421558Srgrimes * pinger -- 7431558Srgrimes * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet 7441558Srgrimes * will be added on by the kernel. The ID field is our UNIX process ID, 7451558Srgrimes * and the sequence number is an ascending integer. The first 8 bytes 74617724Sfenner * of the data portion are used to hold a UNIX "timeval" struct in host 7471558Srgrimes * byte-order, to compute the round-trip time. 7481558Srgrimes */ 74923247Swollmanstatic void 75023247Swollmanpinger(void) 7511558Srgrimes{ 75292806Sobrien struct icmp *icp; 75393035Sobrien int cc, i; 7541558Srgrimes 7551558Srgrimes icp = (struct icmp *)outpack; 7561558Srgrimes icp->icmp_type = ICMP_ECHO; 7571558Srgrimes icp->icmp_code = 0; 7581558Srgrimes icp->icmp_cksum = 0; 75991432Sfenner icp->icmp_seq = htons(ntransmitted); 7601558Srgrimes icp->icmp_id = ident; /* ID */ 7611558Srgrimes 76291432Sfenner CLR(ntransmitted % mx_dup_ck); 7631558Srgrimes 7641558Srgrimes if (timing) 7651558Srgrimes (void)gettimeofday((struct timeval *)&outpack[8], 7661558Srgrimes (struct timezone *)NULL); 7671558Srgrimes 76836089Sjb cc = datalen + PHDR_LEN; /* skips ICMP portion */ 7691558Srgrimes 7701558Srgrimes /* compute ICMP checksum here */ 7711558Srgrimes icp->icmp_cksum = in_cksum((u_short *)icp, cc); 7721558Srgrimes 77379403Smjacob i = sendto(s, (char *)outpack, cc, 0, (struct sockaddr *)&whereto, 77479403Smjacob sizeof(whereto)); 7751558Srgrimes 7761558Srgrimes if (i < 0 || i != cc) { 77723247Swollman if (i < 0) { 77827533Sbde if (options & F_FLOOD && errno == ENOBUFS) { 77927299Sjulian usleep(FLOOD_BACKOFF); 78027299Sjulian return; 78127299Sjulian } 78223247Swollman warn("sendto"); 78323247Swollman } else { 78423247Swollman warn("%s: partial write: %d of %d bytes", 78535216Sphk hostname, i, cc); 78623247Swollman } 78727945Sjulian } 78827945Sjulian ntransmitted++; 7891558Srgrimes if (!(options & F_QUIET) && options & F_FLOOD) 7901558Srgrimes (void)write(STDOUT_FILENO, &DOT, 1); 7911558Srgrimes} 7921558Srgrimes 7931558Srgrimes/* 7941558Srgrimes * pr_pack -- 7951558Srgrimes * Print out the packet, if it came from us. This logic is necessary 7961558Srgrimes * because ALL readers of the ICMP socket get a copy of ALL ICMP packets 7971558Srgrimes * which arrive ('tis only fair). This permits multiple copies of this 7981558Srgrimes * program to be run without having intermingled output (or statistics!). 7991558Srgrimes */ 80023247Swollmanstatic void 80136378Sfennerpr_pack(buf, cc, from, tv) 8021558Srgrimes char *buf; 8031558Srgrimes int cc; 8041558Srgrimes struct sockaddr_in *from; 80536378Sfenner struct timeval *tv; 8061558Srgrimes{ 80792806Sobrien struct icmp *icp; 80893035Sobrien struct ip *ip; 80993035Sobrien struct timeval *tp; 81093035Sobrien u_char *cp, *dp; 81193035Sobrien double triptime; 81292806Sobrien u_long l; 81393035Sobrien int dupflag, hlen, i, j, seq; 8141558Srgrimes static int old_rrlen; 8151558Srgrimes static char old_rr[MAX_IPOPTLEN]; 8161558Srgrimes 8171558Srgrimes /* Check the IP header */ 8181558Srgrimes ip = (struct ip *)buf; 8191558Srgrimes hlen = ip->ip_hl << 2; 8201558Srgrimes if (cc < hlen + ICMP_MINLEN) { 8211558Srgrimes if (options & F_VERBOSE) 82223247Swollman warn("packet too short (%d bytes) from %s", cc, 82323247Swollman inet_ntoa(from->sin_addr)); 8241558Srgrimes return; 8251558Srgrimes } 8261558Srgrimes 8271558Srgrimes /* Now the ICMP part */ 8281558Srgrimes cc -= hlen; 8291558Srgrimes icp = (struct icmp *)(buf + hlen); 8301558Srgrimes if (icp->icmp_type == ICMP_ECHOREPLY) { 8311558Srgrimes if (icp->icmp_id != ident) 8321558Srgrimes return; /* 'Twas not our ECHO */ 8331558Srgrimes ++nreceived; 83427533Sbde triptime = 0.0; 8351558Srgrimes if (timing) { 83636089Sjb struct timeval tv1; 8371558Srgrimes#ifndef icmp_data 8381558Srgrimes tp = (struct timeval *)&icp->icmp_ip; 8391558Srgrimes#else 8401558Srgrimes tp = (struct timeval *)icp->icmp_data; 8411558Srgrimes#endif 84236089Sjb /* Avoid unaligned data: */ 84336089Sjb memcpy(&tv1,tp,sizeof(tv1)); 84436378Sfenner tvsub(tv, &tv1); 84536378Sfenner triptime = ((double)tv->tv_sec) * 1000.0 + 84636378Sfenner ((double)tv->tv_usec) / 1000.0; 8471558Srgrimes tsum += triptime; 84827508Swollman tsumsq += triptime * triptime; 8491558Srgrimes if (triptime < tmin) 8501558Srgrimes tmin = triptime; 8511558Srgrimes if (triptime > tmax) 8521558Srgrimes tmax = triptime; 8531558Srgrimes } 8541558Srgrimes 85591432Sfenner seq = ntohs(icp->icmp_seq); 85691432Sfenner 85791432Sfenner if (TST(seq % mx_dup_ck)) { 8581558Srgrimes ++nrepeats; 8591558Srgrimes --nreceived; 8601558Srgrimes dupflag = 1; 8611558Srgrimes } else { 86291432Sfenner SET(seq % mx_dup_ck); 8631558Srgrimes dupflag = 0; 8641558Srgrimes } 8651558Srgrimes 8661558Srgrimes if (options & F_QUIET) 8671558Srgrimes return; 8681558Srgrimes 8691558Srgrimes if (options & F_FLOOD) 8701558Srgrimes (void)write(STDOUT_FILENO, &BSPACE, 1); 8711558Srgrimes else { 8721558Srgrimes (void)printf("%d bytes from %s: icmp_seq=%u", cc, 8731558Srgrimes inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr), 87491432Sfenner seq); 8751558Srgrimes (void)printf(" ttl=%d", ip->ip_ttl); 8761558Srgrimes if (timing) 8771859Sdg (void)printf(" time=%.3f ms", triptime); 8781558Srgrimes if (dupflag) 8791558Srgrimes (void)printf(" (DUP!)"); 88022417Sdanny if (options & F_AUDIBLE) 88177119Sphk (void)write(STDOUT_FILENO, &BBELL, 1); 8821558Srgrimes /* check the data */ 88336089Sjb cp = (u_char*)&icp->icmp_data[PHDR_LEN]; 88436089Sjb dp = &outpack[8 + PHDR_LEN]; 88536089Sjb for (i = PHDR_LEN; i < datalen; ++i, ++cp, ++dp) { 8861558Srgrimes if (*cp != *dp) { 8871558Srgrimes (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", 8881558Srgrimes i, *dp, *cp); 88936089Sjb printf("\ncp:"); 8901558Srgrimes cp = (u_char*)&icp->icmp_data[0]; 89136089Sjb for (i = 0; i < datalen; ++i, ++cp) { 8921558Srgrimes if ((i % 32) == 8) 8931558Srgrimes (void)printf("\n\t"); 8941558Srgrimes (void)printf("%x ", *cp); 8951558Srgrimes } 89636089Sjb printf("\ndp:"); 89736089Sjb cp = &outpack[8]; 89836089Sjb for (i = 0; i < datalen; ++i, ++cp) { 89936089Sjb if ((i % 32) == 8) 90036089Sjb (void)printf("\n\t"); 90136089Sjb (void)printf("%x ", *cp); 90236089Sjb } 9031558Srgrimes break; 9041558Srgrimes } 9051558Srgrimes } 9061558Srgrimes } 9071558Srgrimes } else { 90817724Sfenner /* 90917724Sfenner * We've got something other than an ECHOREPLY. 91017724Sfenner * See if it's a reply to something that we sent. 91117724Sfenner * We can compare IP destination, protocol, 91217724Sfenner * and ICMP type and ID. 91323251Simp * 91423251Simp * Only print all the error messages if we are running 91523251Simp * as root to avoid leaking information not normally 91623251Simp * available to those not running as root. 91717724Sfenner */ 91817724Sfenner#ifndef icmp_data 91917724Sfenner struct ip *oip = &icp->icmp_ip; 92017724Sfenner#else 92117724Sfenner struct ip *oip = (struct ip *)icp->icmp_data; 92217724Sfenner#endif 92317724Sfenner struct icmp *oicmp = (struct icmp *)(oip + 1); 92417724Sfenner 92523295Simp if (((options & F_VERBOSE) && uid == 0) || 92617724Sfenner (!(options & F_QUIET2) && 92779403Smjacob (oip->ip_dst.s_addr == whereto.sin_addr.s_addr) && 92817724Sfenner (oip->ip_p == IPPROTO_ICMP) && 92917724Sfenner (oicmp->icmp_type == ICMP_ECHO) && 93017724Sfenner (oicmp->icmp_id == ident))) { 93117724Sfenner (void)printf("%d bytes from %s: ", cc, 93223247Swollman pr_addr(from->sin_addr)); 93317724Sfenner pr_icmph(icp); 93417724Sfenner } else 93517724Sfenner return; 9361558Srgrimes } 9371558Srgrimes 9381558Srgrimes /* Display any IP options */ 9391558Srgrimes cp = (u_char *)buf + sizeof(struct ip); 9401558Srgrimes 9411558Srgrimes for (; hlen > (int)sizeof(struct ip); --hlen, ++cp) 9421558Srgrimes switch (*cp) { 9431558Srgrimes case IPOPT_EOL: 9441558Srgrimes hlen = 0; 9451558Srgrimes break; 9461558Srgrimes case IPOPT_LSRR: 9471558Srgrimes (void)printf("\nLSRR: "); 9481558Srgrimes hlen -= 2; 9491558Srgrimes j = *++cp; 9501558Srgrimes ++cp; 9511558Srgrimes if (j > IPOPT_MINOFF) 9521558Srgrimes for (;;) { 9531558Srgrimes l = *++cp; 9541558Srgrimes l = (l<<8) + *++cp; 9551558Srgrimes l = (l<<8) + *++cp; 9561558Srgrimes l = (l<<8) + *++cp; 95723247Swollman if (l == 0) { 95823247Swollman printf("\t0.0.0.0"); 95923247Swollman } else { 96023247Swollman struct in_addr ina; 96123247Swollman ina.s_addr = ntohl(l); 96223247Swollman printf("\t%s", pr_addr(ina)); 96323247Swollman } 9641558Srgrimes hlen -= 4; 9651558Srgrimes j -= 4; 9661558Srgrimes if (j <= IPOPT_MINOFF) 9671558Srgrimes break; 9681558Srgrimes (void)putchar('\n'); 9691558Srgrimes } 9701558Srgrimes break; 9711558Srgrimes case IPOPT_RR: 9721558Srgrimes j = *++cp; /* get length */ 9731558Srgrimes i = *++cp; /* and pointer */ 9741558Srgrimes hlen -= 2; 9751558Srgrimes if (i > j) 9761558Srgrimes i = j; 9771558Srgrimes i -= IPOPT_MINOFF; 9781558Srgrimes if (i <= 0) 9791558Srgrimes continue; 9801558Srgrimes if (i == old_rrlen 9811558Srgrimes && cp == (u_char *)buf + sizeof(struct ip) + 2 9821558Srgrimes && !bcmp((char *)cp, old_rr, i) 9831558Srgrimes && !(options & F_FLOOD)) { 9841558Srgrimes (void)printf("\t(same route)"); 9851558Srgrimes i = ((i + 3) / 4) * 4; 9861558Srgrimes hlen -= i; 9871558Srgrimes cp += i; 9881558Srgrimes break; 9891558Srgrimes } 99034995Seivind if (i < MAX_IPOPTLEN) { 99134976Simp old_rrlen = i; 99234976Simp bcopy((char *)cp, old_rr, i); 99334976Simp } else 99434976Simp old_rrlen = 0; 99534976Simp 9961558Srgrimes (void)printf("\nRR: "); 99734976Simp j = 0; 9981558Srgrimes for (;;) { 9991558Srgrimes l = *++cp; 10001558Srgrimes l = (l<<8) + *++cp; 10011558Srgrimes l = (l<<8) + *++cp; 10021558Srgrimes l = (l<<8) + *++cp; 100323247Swollman if (l == 0) { 100423247Swollman printf("\t0.0.0.0"); 100523247Swollman } else { 100623247Swollman struct in_addr ina; 100723247Swollman ina.s_addr = ntohl(l); 100823247Swollman printf("\t%s", pr_addr(ina)); 100923247Swollman } 10101558Srgrimes hlen -= 4; 10111558Srgrimes i -= 4; 101234976Simp j += 4; 10131558Srgrimes if (i <= 0) 10141558Srgrimes break; 101534976Simp if (j >= MAX_IPOPTLEN) { 101634976Simp (void) printf("\t(truncated route)"); 101734976Simp break; 101834976Simp } 10191558Srgrimes (void)putchar('\n'); 10201558Srgrimes } 10211558Srgrimes break; 10221558Srgrimes case IPOPT_NOP: 10231558Srgrimes (void)printf("\nNOP"); 10241558Srgrimes break; 10251558Srgrimes default: 10261558Srgrimes (void)printf("\nunknown option %x", *cp); 10271558Srgrimes break; 10281558Srgrimes } 10291558Srgrimes if (!(options & F_FLOOD)) { 10301558Srgrimes (void)putchar('\n'); 10311558Srgrimes (void)fflush(stdout); 10321558Srgrimes } 10331558Srgrimes} 10341558Srgrimes 10351558Srgrimes/* 10361558Srgrimes * in_cksum -- 10371558Srgrimes * Checksum routine for Internet Protocol family headers (C Version) 10381558Srgrimes */ 103923247Swollmanu_short 10401558Srgrimesin_cksum(addr, len) 10411558Srgrimes u_short *addr; 10421558Srgrimes int len; 10431558Srgrimes{ 104493035Sobrien int nleft, sum; 104593035Sobrien u_short *w; 104653191Spb union { 104753369Spb u_short us; 104853369Spb u_char uc[2]; 104953369Spb } last; 105053369Spb u_short answer; 10511558Srgrimes 105293035Sobrien nleft = len; 105393035Sobrien sum = 0; 105493035Sobrien w = addr; 105593035Sobrien 10561558Srgrimes /* 10571558Srgrimes * Our algorithm is simple, using a 32 bit accumulator (sum), we add 10581558Srgrimes * sequential 16 bit words to it, and at the end, fold back all the 10591558Srgrimes * carry bits from the top 16 bits into the lower 16 bits. 10601558Srgrimes */ 10611558Srgrimes while (nleft > 1) { 10621558Srgrimes sum += *w++; 10631558Srgrimes nleft -= 2; 10641558Srgrimes } 10651558Srgrimes 10661558Srgrimes /* mop up an odd byte, if necessary */ 10671558Srgrimes if (nleft == 1) { 106853369Spb last.uc[0] = *(u_char *)w; 106953369Spb last.uc[1] = 0; 107053369Spb sum += last.us; 10711558Srgrimes } 10721558Srgrimes 10731558Srgrimes /* add back carry outs from top 16 bits to low 16 bits */ 10741558Srgrimes sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */ 10751558Srgrimes sum += (sum >> 16); /* add carry */ 107653369Spb answer = ~sum; /* truncate to 16 bits */ 107753369Spb return(answer); 10781558Srgrimes} 10791558Srgrimes 10801558Srgrimes/* 10811558Srgrimes * tvsub -- 10821558Srgrimes * Subtract 2 timeval structs: out = out - in. Out is assumed to 10831558Srgrimes * be >= in. 10841558Srgrimes */ 108523247Swollmanstatic void 10861558Srgrimestvsub(out, in) 108792806Sobrien struct timeval *out, *in; 10881558Srgrimes{ 108993035Sobrien 10901558Srgrimes if ((out->tv_usec -= in->tv_usec) < 0) { 10911558Srgrimes --out->tv_sec; 10921558Srgrimes out->tv_usec += 1000000; 10931558Srgrimes } 10941558Srgrimes out->tv_sec -= in->tv_sec; 10951558Srgrimes} 10961558Srgrimes 10971558Srgrimes/* 10983792Ssef * status -- 10993792Ssef * Print out statistics when SIGINFO is received. 11003792Ssef */ 11013792Ssef 110223247Swollmanstatic void 110320280Sbdestatus(sig) 110420280Sbde int sig; 110520280Sbde{ 110693035Sobrien 110720195Ssef siginfo_p = 1; 110820195Ssef} 110920195Ssef 111023247Swollmanstatic void 111120195Ssefcheck_status() 11123792Ssef{ 111393035Sobrien 111420195Ssef if (siginfo_p) { 111520195Ssef siginfo_p = 0; 111620280Sbde (void)fprintf(stderr, 111720280Sbde "\r%ld/%ld packets received (%.0f%%) %.3f min / %.3f avg / %.3f max\n", 111820280Sbde nreceived, ntransmitted, 111920280Sbde ntransmitted ? nreceived * 100.0 / ntransmitted : 0.0, 112020280Sbde nreceived ? tmin : 0.0, 112120280Sbde nreceived + nrepeats ? tsum / (nreceived + nrepeats) : tsum, 112220280Sbde tmax); 112320195Ssef } 11243792Ssef} 11253792Ssef 11263792Ssef/* 11271558Srgrimes * finish -- 11281558Srgrimes * Print out statistics, and give up. 11291558Srgrimes */ 113023247Swollmanstatic void 113127533Sbdefinish() 11321558Srgrimes{ 113393035Sobrien 11343792Ssef struct termios ts; 11351558Srgrimes 11361558Srgrimes (void)signal(SIGINT, SIG_IGN); 113727354Ssef (void)signal(SIGALRM, SIG_IGN); 11381558Srgrimes (void)putchar('\n'); 11391558Srgrimes (void)fflush(stdout); 11401558Srgrimes (void)printf("--- %s ping statistics ---\n", hostname); 11411558Srgrimes (void)printf("%ld packets transmitted, ", ntransmitted); 11421558Srgrimes (void)printf("%ld packets received, ", nreceived); 11431558Srgrimes if (nrepeats) 11441558Srgrimes (void)printf("+%ld duplicates, ", nrepeats); 114546080Simp if (ntransmitted) { 11461558Srgrimes if (nreceived > ntransmitted) 11471558Srgrimes (void)printf("-- somebody's printing up packets!"); 11481558Srgrimes else 11491558Srgrimes (void)printf("%d%% packet loss", 11501558Srgrimes (int) (((ntransmitted - nreceived) * 100) / 11511558Srgrimes ntransmitted)); 115246080Simp } 11531558Srgrimes (void)putchar('\n'); 115427508Swollman if (nreceived && timing) { 115527508Swollman double n = nreceived + nrepeats; 115627508Swollman double avg = tsum / n; 115727508Swollman double vari = tsumsq / n - avg * avg; 115827508Swollman printf("round-trip min/avg/max/stddev = " 115927508Swollman "%.3f/%.3f/%.3f/%.3f ms\n", 116027508Swollman tmin, avg, tmax, sqrt(vari)); 116127508Swollman } 116219395Sbde if (reset_kerninfo && tcgetattr(STDOUT_FILENO, &ts) != -1) { 11633792Ssef ts.c_lflag &= ~NOKERNINFO; 116419395Sbde tcsetattr(STDOUT_FILENO, TCSANOW, &ts); 11653792Ssef } 11663792Ssef 11678871Srgrimes if (nreceived) 11684862Sdg exit(0); 11694862Sdg else 11704862Sdg exit(2); 11711558Srgrimes} 11721558Srgrimes 11731558Srgrimes#ifdef notdef 11741558Srgrimesstatic char *ttab[] = { 11751558Srgrimes "Echo Reply", /* ip + seq + udata */ 11761558Srgrimes "Dest Unreachable", /* net, host, proto, port, frag, sr + IP */ 11771558Srgrimes "Source Quench", /* IP */ 11781558Srgrimes "Redirect", /* redirect type, gateway, + IP */ 11791558Srgrimes "Echo", 11801558Srgrimes "Time Exceeded", /* transit, frag reassem + IP */ 11811558Srgrimes "Parameter Problem", /* pointer + IP */ 11821558Srgrimes "Timestamp", /* id + seq + three timestamps */ 11831558Srgrimes "Timestamp Reply", /* " */ 11841558Srgrimes "Info Request", /* id + sq */ 11851558Srgrimes "Info Reply" /* " */ 11861558Srgrimes}; 11871558Srgrimes#endif 11881558Srgrimes 11891558Srgrimes/* 11901558Srgrimes * pr_icmph -- 11911558Srgrimes * Print a descriptive string about an ICMP header. 11921558Srgrimes */ 119323247Swollmanstatic void 11941558Srgrimespr_icmph(icp) 11951558Srgrimes struct icmp *icp; 11961558Srgrimes{ 119793035Sobrien 11981558Srgrimes switch(icp->icmp_type) { 11991558Srgrimes case ICMP_ECHOREPLY: 12001558Srgrimes (void)printf("Echo Reply\n"); 12011558Srgrimes /* XXX ID + Seq + Data */ 12021558Srgrimes break; 12031558Srgrimes case ICMP_UNREACH: 12041558Srgrimes switch(icp->icmp_code) { 12051558Srgrimes case ICMP_UNREACH_NET: 12061558Srgrimes (void)printf("Destination Net Unreachable\n"); 12071558Srgrimes break; 12081558Srgrimes case ICMP_UNREACH_HOST: 12091558Srgrimes (void)printf("Destination Host Unreachable\n"); 12101558Srgrimes break; 12111558Srgrimes case ICMP_UNREACH_PROTOCOL: 12121558Srgrimes (void)printf("Destination Protocol Unreachable\n"); 12131558Srgrimes break; 12141558Srgrimes case ICMP_UNREACH_PORT: 12151558Srgrimes (void)printf("Destination Port Unreachable\n"); 12161558Srgrimes break; 12171558Srgrimes case ICMP_UNREACH_NEEDFRAG: 121817724Sfenner (void)printf("frag needed and DF set (MTU %d)\n", 121928059Sfenner ntohs(icp->icmp_nextmtu)); 12201558Srgrimes break; 12211558Srgrimes case ICMP_UNREACH_SRCFAIL: 12221558Srgrimes (void)printf("Source Route Failed\n"); 12231558Srgrimes break; 122417724Sfenner case ICMP_UNREACH_FILTER_PROHIB: 122517724Sfenner (void)printf("Communication prohibited by filter\n"); 122617724Sfenner break; 12271558Srgrimes default: 12281558Srgrimes (void)printf("Dest Unreachable, Bad Code: %d\n", 12291558Srgrimes icp->icmp_code); 12301558Srgrimes break; 12311558Srgrimes } 12321558Srgrimes /* Print returned IP header information */ 12331558Srgrimes#ifndef icmp_data 12341558Srgrimes pr_retip(&icp->icmp_ip); 12351558Srgrimes#else 12361558Srgrimes pr_retip((struct ip *)icp->icmp_data); 12371558Srgrimes#endif 12381558Srgrimes break; 12391558Srgrimes case ICMP_SOURCEQUENCH: 12401558Srgrimes (void)printf("Source Quench\n"); 12411558Srgrimes#ifndef icmp_data 12421558Srgrimes pr_retip(&icp->icmp_ip); 12431558Srgrimes#else 12441558Srgrimes pr_retip((struct ip *)icp->icmp_data); 12451558Srgrimes#endif 12461558Srgrimes break; 12471558Srgrimes case ICMP_REDIRECT: 12481558Srgrimes switch(icp->icmp_code) { 12491558Srgrimes case ICMP_REDIRECT_NET: 12501558Srgrimes (void)printf("Redirect Network"); 12511558Srgrimes break; 12521558Srgrimes case ICMP_REDIRECT_HOST: 12531558Srgrimes (void)printf("Redirect Host"); 12541558Srgrimes break; 12551558Srgrimes case ICMP_REDIRECT_TOSNET: 12561558Srgrimes (void)printf("Redirect Type of Service and Network"); 12571558Srgrimes break; 12581558Srgrimes case ICMP_REDIRECT_TOSHOST: 12591558Srgrimes (void)printf("Redirect Type of Service and Host"); 12601558Srgrimes break; 12611558Srgrimes default: 12621558Srgrimes (void)printf("Redirect, Bad Code: %d", icp->icmp_code); 12631558Srgrimes break; 12641558Srgrimes } 126528059Sfenner (void)printf("(New addr: %s)\n", inet_ntoa(icp->icmp_gwaddr)); 12661558Srgrimes#ifndef icmp_data 12671558Srgrimes pr_retip(&icp->icmp_ip); 12681558Srgrimes#else 12691558Srgrimes pr_retip((struct ip *)icp->icmp_data); 12701558Srgrimes#endif 12711558Srgrimes break; 12721558Srgrimes case ICMP_ECHO: 12731558Srgrimes (void)printf("Echo Request\n"); 12741558Srgrimes /* XXX ID + Seq + Data */ 12751558Srgrimes break; 12761558Srgrimes case ICMP_TIMXCEED: 12771558Srgrimes switch(icp->icmp_code) { 12781558Srgrimes case ICMP_TIMXCEED_INTRANS: 12791558Srgrimes (void)printf("Time to live exceeded\n"); 12801558Srgrimes break; 12811558Srgrimes case ICMP_TIMXCEED_REASS: 12821558Srgrimes (void)printf("Frag reassembly time exceeded\n"); 12831558Srgrimes break; 12841558Srgrimes default: 12851558Srgrimes (void)printf("Time exceeded, Bad Code: %d\n", 12861558Srgrimes icp->icmp_code); 12871558Srgrimes break; 12881558Srgrimes } 12891558Srgrimes#ifndef icmp_data 12901558Srgrimes pr_retip(&icp->icmp_ip); 12911558Srgrimes#else 12921558Srgrimes pr_retip((struct ip *)icp->icmp_data); 12931558Srgrimes#endif 12941558Srgrimes break; 12951558Srgrimes case ICMP_PARAMPROB: 12961558Srgrimes (void)printf("Parameter problem: pointer = 0x%02x\n", 12971558Srgrimes icp->icmp_hun.ih_pptr); 12981558Srgrimes#ifndef icmp_data 12991558Srgrimes pr_retip(&icp->icmp_ip); 13001558Srgrimes#else 13011558Srgrimes pr_retip((struct ip *)icp->icmp_data); 13021558Srgrimes#endif 13031558Srgrimes break; 13041558Srgrimes case ICMP_TSTAMP: 13051558Srgrimes (void)printf("Timestamp\n"); 13061558Srgrimes /* XXX ID + Seq + 3 timestamps */ 13071558Srgrimes break; 13081558Srgrimes case ICMP_TSTAMPREPLY: 13091558Srgrimes (void)printf("Timestamp Reply\n"); 13101558Srgrimes /* XXX ID + Seq + 3 timestamps */ 13111558Srgrimes break; 13121558Srgrimes case ICMP_IREQ: 13131558Srgrimes (void)printf("Information Request\n"); 13141558Srgrimes /* XXX ID + Seq */ 13151558Srgrimes break; 13161558Srgrimes case ICMP_IREQREPLY: 13171558Srgrimes (void)printf("Information Reply\n"); 13181558Srgrimes /* XXX ID + Seq */ 13191558Srgrimes break; 13201558Srgrimes case ICMP_MASKREQ: 13211558Srgrimes (void)printf("Address Mask Request\n"); 13221558Srgrimes break; 13231558Srgrimes case ICMP_MASKREPLY: 13241558Srgrimes (void)printf("Address Mask Reply\n"); 13251558Srgrimes break; 132617724Sfenner case ICMP_ROUTERADVERT: 132717724Sfenner (void)printf("Router Advertisement\n"); 132817724Sfenner break; 132917724Sfenner case ICMP_ROUTERSOLICIT: 133017724Sfenner (void)printf("Router Solicitation\n"); 133117724Sfenner break; 13321558Srgrimes default: 13331558Srgrimes (void)printf("Bad ICMP type: %d\n", icp->icmp_type); 13341558Srgrimes } 13351558Srgrimes} 13361558Srgrimes 13371558Srgrimes/* 13381558Srgrimes * pr_iph -- 13391558Srgrimes * Print an IP header with options. 13401558Srgrimes */ 134123247Swollmanstatic void 13421558Srgrimespr_iph(ip) 13431558Srgrimes struct ip *ip; 13441558Srgrimes{ 134593035Sobrien u_char *cp; 13461558Srgrimes int hlen; 13471558Srgrimes 13481558Srgrimes hlen = ip->ip_hl << 2; 13491558Srgrimes cp = (u_char *)ip + 20; /* point to options */ 13501558Srgrimes 135117724Sfenner (void)printf("Vr HL TOS Len ID Flg off TTL Pro cks Src Dst\n"); 13521558Srgrimes (void)printf(" %1x %1x %02x %04x %04x", 135317724Sfenner ip->ip_v, ip->ip_hl, ip->ip_tos, ntohs(ip->ip_len), 135417724Sfenner ntohs(ip->ip_id)); 135536089Sjb (void)printf(" %1lx %04lx", 135636089Sjb (u_long) (ntohl(ip->ip_off) & 0xe000) >> 13, 135736089Sjb (u_long) ntohl(ip->ip_off) & 0x1fff); 135817724Sfenner (void)printf(" %02x %02x %04x", ip->ip_ttl, ip->ip_p, 135917724Sfenner ntohs(ip->ip_sum)); 13601558Srgrimes (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_src.s_addr)); 13611558Srgrimes (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_dst.s_addr)); 136217724Sfenner /* dump any option bytes */ 13631558Srgrimes while (hlen-- > 20) { 13641558Srgrimes (void)printf("%02x", *cp++); 13651558Srgrimes } 13661558Srgrimes (void)putchar('\n'); 13671558Srgrimes} 13681558Srgrimes 13691558Srgrimes/* 13701558Srgrimes * pr_addr -- 13711558Srgrimes * Return an ascii host address as a dotted quad and optionally with 13721558Srgrimes * a hostname. 13731558Srgrimes */ 137423247Swollmanstatic char * 137523247Swollmanpr_addr(ina) 137623247Swollman struct in_addr ina; 13771558Srgrimes{ 13781558Srgrimes struct hostent *hp; 137923251Simp static char buf[16 + 3 + MAXHOSTNAMELEN]; 13801558Srgrimes 13811558Srgrimes if ((options & F_NUMERIC) || 138223247Swollman !(hp = gethostbyaddr((char *)&ina, 4, AF_INET))) 138323247Swollman return inet_ntoa(ina); 13841558Srgrimes else 138517320Speter (void)snprintf(buf, sizeof(buf), "%s (%s)", hp->h_name, 138623247Swollman inet_ntoa(ina)); 13871558Srgrimes return(buf); 13881558Srgrimes} 13891558Srgrimes 13901558Srgrimes/* 13911558Srgrimes * pr_retip -- 13921558Srgrimes * Dump some info on a returned (via ICMP) IP packet. 13931558Srgrimes */ 139423247Swollmanstatic void 13951558Srgrimespr_retip(ip) 13961558Srgrimes struct ip *ip; 13971558Srgrimes{ 139893035Sobrien u_char *cp; 13991558Srgrimes int hlen; 14001558Srgrimes 14011558Srgrimes pr_iph(ip); 14021558Srgrimes hlen = ip->ip_hl << 2; 14031558Srgrimes cp = (u_char *)ip + hlen; 14041558Srgrimes 14051558Srgrimes if (ip->ip_p == 6) 14061558Srgrimes (void)printf("TCP: from port %u, to port %u (decimal)\n", 14071558Srgrimes (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3))); 14081558Srgrimes else if (ip->ip_p == 17) 14091558Srgrimes (void)printf("UDP: from port %u, to port %u (decimal)\n", 14101558Srgrimes (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3))); 14111558Srgrimes} 14121558Srgrimes 141323247Swollmanstatic void 14141558Srgrimesfill(bp, patp) 14151558Srgrimes char *bp, *patp; 14161558Srgrimes{ 141793035Sobrien char *cp; 141893035Sobrien int pat[16]; 141992806Sobrien int ii, jj, kk; 14201558Srgrimes 142123247Swollman for (cp = patp; *cp; cp++) { 142223247Swollman if (!isxdigit(*cp)) 142323247Swollman errx(EX_USAGE, 142423247Swollman "patterns must be specified as hex digits"); 142523247Swollman 142623247Swollman } 14271558Srgrimes ii = sscanf(patp, 14281558Srgrimes "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x", 14291558Srgrimes &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6], 14301558Srgrimes &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12], 14311558Srgrimes &pat[13], &pat[14], &pat[15]); 14321558Srgrimes 14331558Srgrimes if (ii > 0) 14341558Srgrimes for (kk = 0; 143536089Sjb kk <= MAXPACKET - (8 + PHDR_LEN + ii); 14361558Srgrimes kk += ii) 14371558Srgrimes for (jj = 0; jj < ii; ++jj) 14381558Srgrimes bp[jj + kk] = pat[jj]; 14391558Srgrimes if (!(options & F_QUIET)) { 14401558Srgrimes (void)printf("PATTERN: 0x"); 14411558Srgrimes for (jj = 0; jj < ii; ++jj) 14421558Srgrimes (void)printf("%02x", bp[jj] & 0xFF); 14431558Srgrimes (void)printf("\n"); 14441558Srgrimes } 14451558Srgrimes} 14461558Srgrimes 144723247Swollmanstatic void 144837671Scharnierusage() 14491558Srgrimes{ 145042337Simp fprintf(stderr, "%s\n%s\n%s\n", 145174029Sru"usage: ping [-QRadfnqrv] [-c count] [-i wait] [-l preload] [-m ttl]", 145274029Sru" [-p pattern] " 145355505Sshin#ifdef IPSEC 145455505Sshin#ifdef IPSEC_POLICY_IPSEC 145555505Sshin"[-P policy] " 145655505Sshin#endif 145755505Sshin#endif 145855996Sbillf"[-s packetsize] [-S src_addr] [-t timeout]", 145955996Sbillf" [host | [-L] [-I iface] [-T ttl] mcast-group]"); 146023247Swollman exit(EX_USAGE); 14611558Srgrimes} 1462