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738 lines
19 KiB
C
738 lines
19 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini ping implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* Adapted from the ping in netkit-base 0.10:
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Mike Muuss.
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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/* from ping6.c:
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* This version of ping is adapted from the ping in netkit-base 0.10,
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* which is:
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*
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* Original copyright notice is retained at the end of this file.
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*
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* This version is an adaptation of ping.c from busybox.
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* The code was modified by Bart Visscher <magick@linux-fan.com>
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*/
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#include <net/if.h>
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#include <netinet/ip_icmp.h>
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#include "busybox.h"
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#if ENABLE_PING6
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#include <netinet/icmp6.h>
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/* I see RENUMBERED constants in bits/in.h - !!?
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* What a fuck is going on with libc? Is it a glibc joke? */
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#ifdef IPV6_2292HOPLIMIT
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#undef IPV6_HOPLIMIT
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#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT
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#endif
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#endif
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enum {
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DEFDATALEN = 56,
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MAXIPLEN = 60,
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MAXICMPLEN = 76,
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MAXPACKET = 65468,
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MAX_DUP_CHK = (8 * 128),
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MAXWAIT = 10,
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PINGINTERVAL = 1, /* 1 second */
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};
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/* common routines */
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static int in_cksum(unsigned short *buf, int sz)
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{
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int nleft = sz;
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int sum = 0;
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unsigned short *w = buf;
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unsigned short ans = 0;
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while (nleft > 1) {
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sum += *w++;
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nleft -= 2;
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}
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if (nleft == 1) {
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*(unsigned char *) (&ans) = *(unsigned char *) w;
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sum += ans;
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}
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sum = (sum >> 16) + (sum & 0xFFFF);
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sum += (sum >> 16);
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ans = ~sum;
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return ans;
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}
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#if !ENABLE_FEATURE_FANCY_PING
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/* simple version */
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static char *hostname;
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static void noresp(int ign ATTRIBUTE_UNUSED)
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{
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printf("No response from %s\n", hostname);
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exit(EXIT_FAILURE);
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}
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static void ping4(len_and_sockaddr *lsa)
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{
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struct sockaddr_in pingaddr;
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struct icmp *pkt;
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int pingsock, c;
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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pingsock = create_icmp_socket();
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pingaddr = lsa->sin;
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pkt = (struct icmp *) packet;
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memset(pkt, 0, sizeof(packet));
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pkt->icmp_type = ICMP_ECHO;
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pkt->icmp_cksum = in_cksum((unsigned short *) pkt, sizeof(packet));
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c = xsendto(pingsock, packet, DEFDATALEN + ICMP_MINLEN,
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(struct sockaddr *) &pingaddr, sizeof(pingaddr));
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/* listen for replies */
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while (1) {
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struct sockaddr_in from;
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socklen_t fromlen = sizeof(from);
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c = recvfrom(pingsock, packet, sizeof(packet), 0,
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(struct sockaddr *) &from, &fromlen);
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if (c < 0) {
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if (errno != EINTR)
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bb_perror_msg("recvfrom");
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continue;
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}
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if (c >= 76) { /* ip + icmp */
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struct iphdr *iphdr = (struct iphdr *) packet;
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pkt = (struct icmp *) (packet + (iphdr->ihl << 2)); /* skip ip hdr */
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if (pkt->icmp_type == ICMP_ECHOREPLY)
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break;
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}
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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close(pingsock);
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}
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#if ENABLE_PING6
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static void ping6(len_and_sockaddr *lsa)
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{
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struct sockaddr_in6 pingaddr;
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struct icmp6_hdr *pkt;
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int pingsock, c;
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int sockopt;
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char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
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pingsock = create_icmp6_socket();
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pingaddr = lsa->sin6;
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pkt = (struct icmp6_hdr *) packet;
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memset(pkt, 0, sizeof(packet));
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pkt->icmp6_type = ICMP6_ECHO_REQUEST;
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sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
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setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
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c = xsendto(pingsock, packet, DEFDATALEN + sizeof (struct icmp6_hdr),
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(struct sockaddr *) &pingaddr, sizeof(pingaddr));
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/* listen for replies */
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while (1) {
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struct sockaddr_in6 from;
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socklen_t fromlen = sizeof(from);
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c = recvfrom(pingsock, packet, sizeof(packet), 0,
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(struct sockaddr *) &from, &fromlen);
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if (c < 0) {
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if (errno != EINTR)
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bb_perror_msg("recvfrom");
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continue;
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}
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if (c >= 8) { /* icmp6_hdr */
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pkt = (struct icmp6_hdr *) packet;
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if (pkt->icmp6_type == ICMP6_ECHO_REPLY)
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break;
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}
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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close(pingsock);
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}
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#endif
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int ping_main(int argc, char **argv);
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int ping_main(int argc, char **argv)
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{
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len_and_sockaddr *lsa;
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#if ENABLE_PING6
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sa_family_t af = AF_UNSPEC;
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while (++argv[0][0] == '-') {
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if (argv[0][1] == '4') {
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af = AF_INET;
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continue;
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}
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if (argv[0][1] == '6') {
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af = AF_INET6;
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continue;
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}
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bb_show_usage();
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}
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#else
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argv++;
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#endif
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hostname = *argv;
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if (!hostname)
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bb_show_usage();
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#if ENABLE_PING6
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lsa = xhost_and_af2sockaddr(hostname, 0, af);
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#else
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lsa = xhost_and_af2sockaddr(hostname, 0, AF_INET);
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#endif
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/* Set timer _after_ DNS resolution */
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signal(SIGALRM, noresp);
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alarm(5); /* give the host 5000ms to respond */
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#if ENABLE_PING6
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if (lsa->sa.sa_family == AF_INET6)
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ping6(lsa);
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else
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#endif
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ping4(lsa);
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printf("%s is alive!\n", hostname);
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return EXIT_SUCCESS;
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}
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#else /* FEATURE_FANCY_PING */
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/* full(er) version */
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#define OPT_STRING ("qvc:s:I:4" USE_PING6("6"))
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enum {
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OPT_QUIET = 1 << 0,
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OPT_VERBOSE = 1 << 1,
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OPT_c = 1 << 2,
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OPT_s = 1 << 3,
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OPT_I = 1 << 4,
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OPT_IPV4 = 1 << 5,
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OPT_IPV6 = (1 << 6) * ENABLE_PING6,
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};
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static union {
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struct sockaddr sa;
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struct sockaddr_in sin;
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#if ENABLE_PING6
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struct sockaddr_in6 sin6;
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#endif
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} pingaddr;
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static len_and_sockaddr *source_lsa;
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static int pingsock = -1;
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static unsigned datalen; /* intentionally uninitialized to work around gcc bug */
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static int if_index;
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static unsigned long ntransmitted, nreceived, nrepeats, pingcount;
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static int myid;
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static unsigned tmin = UINT_MAX, tmax;
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static unsigned long tsum;
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static char rcvd_tbl[MAX_DUP_CHK / 8];
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static const char *hostname;
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static const char *dotted;
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#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
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#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
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#define SET(bit) (A(bit) |= B(bit))
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#define CLR(bit) (A(bit) &= (~B(bit)))
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#define TST(bit) (A(bit) & B(bit))
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/**************************************************************************/
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static void pingstats(int junk ATTRIBUTE_UNUSED)
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{
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signal(SIGINT, SIG_IGN);
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printf("\n--- %s ping statistics ---\n", hostname);
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printf("%lu packets transmitted, ", ntransmitted);
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printf("%lu packets received, ", nreceived);
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if (nrepeats)
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printf("%lu duplicates, ", nrepeats);
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if (ntransmitted)
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ntransmitted = (ntransmitted - nreceived) * 100 / ntransmitted;
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printf("%lu%% packet loss\n", ntransmitted);
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if (tmin != UINT_MAX)
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printf("round-trip min/avg/max = %u.%u/%lu.%lu/%u.%u ms\n",
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tmin / 10, tmin % 10,
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(tsum / (nreceived + nrepeats)) / 10,
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(tsum / (nreceived + nrepeats)) % 10, tmax / 10, tmax % 10);
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exit(nreceived == 0); /* (nreceived == 0) is true (1) -- 'failure' */
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}
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static void sendping_tail(void (*sp)(int), const void *pkt, int size_pkt)
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{
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int sz;
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CLR((uint16_t)ntransmitted % MAX_DUP_CHK);
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ntransmitted++;
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/* sizeof(pingaddr) can be larger than real sa size, but I think
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* it doesn't matter */
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sz = xsendto(pingsock, pkt, size_pkt, &pingaddr.sa, sizeof(pingaddr));
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if (sz != size_pkt)
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bb_error_msg_and_die(bb_msg_write_error);
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signal(SIGALRM, sp);
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if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next in 1s */
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alarm(PINGINTERVAL);
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} else { /* done, wait for the last ping to come back */
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/* todo, don't necessarily need to wait so long... */
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signal(SIGALRM, pingstats);
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alarm(MAXWAIT);
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}
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}
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static void sendping4(int junk ATTRIBUTE_UNUSED)
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{
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struct icmp *pkt = alloca(datalen + ICMP_MINLEN);
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pkt->icmp_type = ICMP_ECHO;
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pkt->icmp_code = 0;
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pkt->icmp_cksum = 0;
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pkt->icmp_seq = htons(ntransmitted); /* don't ++ here, it can be a macro */
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pkt->icmp_id = myid;
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gettimeofday((struct timeval *) &pkt->icmp_dun, NULL);
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pkt->icmp_cksum = in_cksum((unsigned short *) pkt, datalen + ICMP_MINLEN);
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sendping_tail(sendping4, pkt, datalen + ICMP_MINLEN);
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}
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#if ENABLE_PING6
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static void sendping6(int junk ATTRIBUTE_UNUSED)
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{
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struct icmp6_hdr *pkt = alloca(datalen + sizeof(struct icmp6_hdr));
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pkt->icmp6_type = ICMP6_ECHO_REQUEST;
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pkt->icmp6_code = 0;
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pkt->icmp6_cksum = 0;
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pkt->icmp6_seq = htons(ntransmitted); /* don't ++ here, it can be a macro */
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pkt->icmp6_id = myid;
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gettimeofday((struct timeval *) &pkt->icmp6_data8[4], NULL);
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sendping_tail(sendping6, pkt, datalen + sizeof(struct icmp6_hdr));
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}
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#endif
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static const char *icmp_type_name(int id)
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{
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switch (id) {
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case ICMP_ECHOREPLY: return "Echo Reply";
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case ICMP_DEST_UNREACH: return "Destination Unreachable";
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case ICMP_SOURCE_QUENCH: return "Source Quench";
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case ICMP_REDIRECT: return "Redirect (change route)";
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case ICMP_ECHO: return "Echo Request";
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case ICMP_TIME_EXCEEDED: return "Time Exceeded";
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case ICMP_PARAMETERPROB: return "Parameter Problem";
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case ICMP_TIMESTAMP: return "Timestamp Request";
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case ICMP_TIMESTAMPREPLY: return "Timestamp Reply";
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case ICMP_INFO_REQUEST: return "Information Request";
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case ICMP_INFO_REPLY: return "Information Reply";
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case ICMP_ADDRESS: return "Address Mask Request";
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case ICMP_ADDRESSREPLY: return "Address Mask Reply";
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default: return "unknown ICMP type";
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}
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}
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#if ENABLE_PING6
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/* RFC3542 changed some definitions from RFC2292 for no good reason, whee!
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* the newer 3542 uses a MLD_ prefix where as 2292 uses ICMP6_ prefix */
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#ifndef MLD_LISTENER_QUERY
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# define MLD_LISTENER_QUERY ICMP6_MEMBERSHIP_QUERY
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#endif
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#ifndef MLD_LISTENER_REPORT
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# define MLD_LISTENER_REPORT ICMP6_MEMBERSHIP_REPORT
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#endif
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#ifndef MLD_LISTENER_REDUCTION
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# define MLD_LISTENER_REDUCTION ICMP6_MEMBERSHIP_REDUCTION
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#endif
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static const char *icmp6_type_name(int id)
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{
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switch (id) {
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case ICMP6_DST_UNREACH: return "Destination Unreachable";
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case ICMP6_PACKET_TOO_BIG: return "Packet too big";
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case ICMP6_TIME_EXCEEDED: return "Time Exceeded";
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case ICMP6_PARAM_PROB: return "Parameter Problem";
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case ICMP6_ECHO_REPLY: return "Echo Reply";
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case ICMP6_ECHO_REQUEST: return "Echo Request";
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case MLD_LISTENER_QUERY: return "Listener Query";
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case MLD_LISTENER_REPORT: return "Listener Report";
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case MLD_LISTENER_REDUCTION: return "Listener Reduction";
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default: return "unknown ICMP type";
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}
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}
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#endif
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static void unpack_tail(int sz, struct timeval *tp,
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const char *from_str,
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uint16_t recv_seq, int ttl)
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{
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const char *dupmsg = " (DUP!)";
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unsigned triptime = triptime; /* for gcc */
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++nreceived;
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if (tp) {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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tv.tv_usec -= tp->tv_usec;
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if (tv.tv_usec < 0) {
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--tv.tv_sec;
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tv.tv_usec += 1000000;
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}
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tv.tv_sec -= tp->tv_sec;
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triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100);
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tsum += triptime;
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if (triptime < tmin)
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tmin = triptime;
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if (triptime > tmax)
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tmax = triptime;
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}
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if (TST(recv_seq % MAX_DUP_CHK)) {
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++nrepeats;
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--nreceived;
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} else {
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SET(recv_seq % MAX_DUP_CHK);
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dupmsg += 7;
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}
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if (option_mask32 & OPT_QUIET)
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return;
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printf("%d bytes from %s: seq=%u ttl=%d", sz,
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from_str, recv_seq, ttl);
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if (tp)
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printf(" time=%u.%u ms", triptime / 10, triptime % 10);
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puts(dupmsg);
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fflush(stdout);
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}
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static void unpack4(char *buf, int sz, struct sockaddr_in *from)
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{
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struct icmp *icmppkt;
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struct iphdr *iphdr;
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int hlen;
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/* discard if too short */
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if (sz < (datalen + ICMP_MINLEN))
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return;
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/* check IP header */
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iphdr = (struct iphdr *) buf;
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hlen = iphdr->ihl << 2;
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sz -= hlen;
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icmppkt = (struct icmp *) (buf + hlen);
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if (icmppkt->icmp_id != myid)
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return; /* not our ping */
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if (icmppkt->icmp_type == ICMP_ECHOREPLY) {
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uint16_t recv_seq = ntohs(icmppkt->icmp_seq);
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struct timeval *tp = NULL;
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if (sz >= ICMP_MINLEN + sizeof(struct timeval))
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tp = (struct timeval *) icmppkt->icmp_data;
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unpack_tail(sz, tp,
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inet_ntoa(*(struct in_addr *) &from->sin_addr.s_addr),
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recv_seq, iphdr->ttl);
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} else if (icmppkt->icmp_type != ICMP_ECHO) {
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bb_error_msg("warning: got ICMP %d (%s)",
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icmppkt->icmp_type,
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icmp_type_name(icmppkt->icmp_type));
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}
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}
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#if ENABLE_PING6
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static void unpack6(char *packet, int sz, struct sockaddr_in6 *from, int hoplimit)
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{
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struct icmp6_hdr *icmppkt;
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char buf[INET6_ADDRSTRLEN];
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/* discard if too short */
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if (sz < (datalen + sizeof(struct icmp6_hdr)))
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return;
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icmppkt = (struct icmp6_hdr *) packet;
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if (icmppkt->icmp6_id != myid)
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return; /* not our ping */
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if (icmppkt->icmp6_type == ICMP6_ECHO_REPLY) {
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uint16_t recv_seq = ntohs(icmppkt->icmp6_seq);
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struct timeval *tp = NULL;
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if (sz >= sizeof(struct icmp6_hdr) + sizeof(struct timeval))
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tp = (struct timeval *) &icmppkt->icmp6_data8[4];
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unpack_tail(sz, tp,
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inet_ntop(AF_INET6, &pingaddr.sin6.sin6_addr,
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buf, sizeof(buf)),
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recv_seq, hoplimit);
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} else if (icmppkt->icmp6_type != ICMP6_ECHO_REQUEST) {
|
|
bb_error_msg("warning: got ICMP %d (%s)",
|
|
icmppkt->icmp6_type,
|
|
icmp6_type_name(icmppkt->icmp6_type));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void ping4(len_and_sockaddr *lsa)
|
|
{
|
|
char packet[datalen + MAXIPLEN + MAXICMPLEN];
|
|
int sockopt;
|
|
|
|
pingsock = create_icmp_socket();
|
|
pingaddr.sin = lsa->sin;
|
|
if (source_lsa)
|
|
xbind(pingsock, &lsa->sa, lsa->len);
|
|
|
|
/* enable broadcast pings */
|
|
setsockopt_broadcast(pingsock);
|
|
|
|
/* set recv buf for broadcast pings */
|
|
sockopt = 48 * 1024; /* explain why 48k? */
|
|
setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
|
|
|
|
signal(SIGINT, pingstats);
|
|
|
|
/* start the ping's going ... */
|
|
sendping4(0);
|
|
|
|
/* listen for replies */
|
|
while (1) {
|
|
struct sockaddr_in from;
|
|
socklen_t fromlen = (socklen_t) sizeof(from);
|
|
int c;
|
|
|
|
c = recvfrom(pingsock, packet, sizeof(packet), 0,
|
|
(struct sockaddr *) &from, &fromlen);
|
|
if (c < 0) {
|
|
if (errno != EINTR)
|
|
bb_perror_msg("recvfrom");
|
|
continue;
|
|
}
|
|
unpack4(packet, c, &from);
|
|
if (pingcount > 0 && nreceived >= pingcount)
|
|
break;
|
|
}
|
|
}
|
|
#if ENABLE_PING6
|
|
extern int BUG_bad_offsetof_icmp6_cksum(void);
|
|
static void ping6(len_and_sockaddr *lsa)
|
|
{
|
|
char packet[datalen + MAXIPLEN + MAXICMPLEN];
|
|
int sockopt;
|
|
struct msghdr msg;
|
|
struct sockaddr_in6 from;
|
|
struct iovec iov;
|
|
char control_buf[CMSG_SPACE(36)];
|
|
|
|
pingsock = create_icmp6_socket();
|
|
pingaddr.sin6 = lsa->sin6;
|
|
/* untested whether "-I addr" really works for IPv6: */
|
|
if (source_lsa)
|
|
xbind(pingsock, &lsa->sa, lsa->len);
|
|
|
|
#ifdef ICMP6_FILTER
|
|
{
|
|
struct icmp6_filter filt;
|
|
if (!(option_mask32 & OPT_VERBOSE)) {
|
|
ICMP6_FILTER_SETBLOCKALL(&filt);
|
|
ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
|
|
} else {
|
|
ICMP6_FILTER_SETPASSALL(&filt);
|
|
}
|
|
if (setsockopt(pingsock, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
|
|
sizeof(filt)) < 0)
|
|
bb_error_msg_and_die("setsockopt(ICMP6_FILTER)");
|
|
}
|
|
#endif /*ICMP6_FILTER*/
|
|
|
|
/* enable broadcast pings */
|
|
setsockopt_broadcast(pingsock);
|
|
|
|
/* set recv buf for broadcast pings */
|
|
sockopt = 48 * 1024; /* explain why 48k? */
|
|
setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
|
|
|
|
sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
|
|
if (offsetof(struct icmp6_hdr, icmp6_cksum) != 2)
|
|
BUG_bad_offsetof_icmp6_cksum();
|
|
setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
|
|
|
|
/* request ttl info to be returned in ancillary data */
|
|
setsockopt(pingsock, SOL_IPV6, IPV6_HOPLIMIT, &const_int_1, sizeof(const_int_1));
|
|
|
|
if (if_index)
|
|
pingaddr.sin6.sin6_scope_id = if_index;
|
|
|
|
signal(SIGINT, pingstats);
|
|
|
|
/* start the ping's going ... */
|
|
sendping6(0);
|
|
|
|
/* listen for replies */
|
|
msg.msg_name = &from;
|
|
msg.msg_namelen = sizeof(from);
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = control_buf;
|
|
iov.iov_base = packet;
|
|
iov.iov_len = sizeof(packet);
|
|
while (1) {
|
|
int c;
|
|
struct cmsghdr *mp;
|
|
int hoplimit = -1;
|
|
msg.msg_controllen = sizeof(control_buf);
|
|
|
|
c = recvmsg(pingsock, &msg, 0);
|
|
if (c < 0) {
|
|
if (errno != EINTR)
|
|
bb_perror_msg("recvfrom");
|
|
continue;
|
|
}
|
|
for (mp = CMSG_FIRSTHDR(&msg); mp; mp = CMSG_NXTHDR(&msg, mp)) {
|
|
if (mp->cmsg_level == SOL_IPV6
|
|
&& mp->cmsg_type == IPV6_HOPLIMIT
|
|
/* don't check len - we trust the kernel: */
|
|
/* && mp->cmsg_len >= CMSG_LEN(sizeof(int)) */
|
|
) {
|
|
hoplimit = *(int*)CMSG_DATA(mp);
|
|
}
|
|
}
|
|
unpack6(packet, c, &from, hoplimit);
|
|
if (pingcount > 0 && nreceived >= pingcount)
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void ping(len_and_sockaddr *lsa)
|
|
{
|
|
printf("PING %s (%s)", hostname, dotted);
|
|
if (source_lsa) {
|
|
printf(" from %s",
|
|
xmalloc_sockaddr2dotted_noport(&lsa->sa, lsa->len));
|
|
}
|
|
printf(": %d data bytes\n", datalen);
|
|
|
|
#if ENABLE_PING6
|
|
if (lsa->sa.sa_family == AF_INET6)
|
|
ping6(lsa);
|
|
else
|
|
#endif
|
|
ping4(lsa);
|
|
}
|
|
|
|
int ping_main(int argc, char **argv);
|
|
int ping_main(int argc, char **argv)
|
|
{
|
|
len_and_sockaddr *lsa;
|
|
char *opt_c, *opt_s, *opt_I;
|
|
USE_PING6(sa_family_t af = AF_UNSPEC;)
|
|
|
|
datalen = DEFDATALEN; /* initialized here rather than in global scope to work around gcc bug */
|
|
|
|
/* exactly one argument needed, -v and -q don't mix */
|
|
opt_complementary = "=1:q--v:v--q";
|
|
getopt32(argc, argv, OPT_STRING, &opt_c, &opt_s, &opt_I);
|
|
if (option_mask32 & OPT_c) pingcount = xatoul(opt_c); // -c
|
|
if (option_mask32 & OPT_s) datalen = xatou16(opt_s); // -s
|
|
if (option_mask32 & OPT_I) { // -I
|
|
if_index = if_nametoindex(opt_I);
|
|
if (!if_index) {
|
|
/* TODO: I'm not sure it takes IPv6 unless in [XX:XX..] format */
|
|
/* (ping doesn't support source IPv6 addresses yet anyway) */
|
|
source_lsa = xdotted2sockaddr(opt_I, 0);
|
|
}
|
|
}
|
|
myid = (int16_t) getpid();
|
|
hostname = argv[optind];
|
|
#if ENABLE_PING6
|
|
if (option_mask32 & OPT_IPV4)
|
|
af = AF_INET;
|
|
if (option_mask32 & OPT_IPV6)
|
|
af = AF_INET6;
|
|
lsa = xhost_and_af2sockaddr(hostname, 0, af);
|
|
#else
|
|
lsa = xhost_and_af2sockaddr(hostname, 0, AF_INET);
|
|
#endif
|
|
|
|
if (source_lsa && source_lsa->sa.sa_family != lsa->sa.sa_family)
|
|
/* leaking it here... */
|
|
source_lsa = NULL;
|
|
|
|
dotted = xmalloc_sockaddr2dotted_noport(&lsa->sa, lsa->len);
|
|
ping(lsa);
|
|
pingstats(0);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
#endif /* FEATURE_FANCY_PING */
|
|
|
|
|
|
#if ENABLE_PING6
|
|
int ping6_main(int argc, char **argv);
|
|
int ping6_main(int argc, char **argv)
|
|
{
|
|
argv[0] = (char*)"-6";
|
|
return ping_main(argc + 1, argv - 1);
|
|
}
|
|
#endif
|
|
|
|
/* from ping6.c:
|
|
* Copyright (c) 1989 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Mike Muuss.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
|
|
* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
|
|
*
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|