mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
2b39a7c8ef
Obtained from: KAME
205 lines
5.3 KiB
C
205 lines
5.3 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <signal.h>
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#include <errno.h>
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#include <err.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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#include <net/if_var.h>
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#endif /* __FreeBSD__ >= 3 */
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include "route6d.h"
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/* wrapper for KAME-special getnameinfo() */
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#ifndef NI_WITHSCOPEID
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#define NI_WITHSCOPEID 0
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#endif
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int s;
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struct sockaddr_in6 sin6;
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struct rip6 *ripbuf;
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#define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6))
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int main __P((int, char **));
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static void usage __P((void));
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static const char *sa_n2a __P((struct sockaddr *));
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static const char *inet6_n2a __P((struct in6_addr *));
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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struct netinfo6 *np;
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struct sockaddr_in6 fsock;
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int i, n, len, flen;
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int c;
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int ifidx = -1;
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int error;
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char pbuf[10];
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struct addrinfo hints, *res;
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while ((c = getopt(argc, argv, "I:")) != EOF) {
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switch (c) {
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case 'I':
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ifidx = if_nametoindex(optarg);
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if (ifidx == 0) {
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errx(1, "invalid interface %s", optarg);
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/*NOTREACHED*/
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}
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break;
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default:
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usage();
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exit(1);
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/*NOTREACHED*/
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}
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}
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argv += optind;
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argc -= optind;
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if (argc != 1) {
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usage();
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exit(-1);
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}
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if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
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err(1, "socket");
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/*NOTREACHED*/
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}
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/* getaddrinfo is preferred for addr@ifname syntax */
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snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT);
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_INET6;
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hints.ai_socktype = SOCK_DGRAM;
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error = getaddrinfo(argv[0], pbuf, &hints, &res);
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if (error) {
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errx(1, "%s: %s", argv[0], gai_strerror(error));
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/*NOTREACHED*/
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}
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if (res->ai_next) {
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errx(1, "%s: %s", argv[0], "resolved to multiple addrs");
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/*NOTREACHED*/
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}
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if (sizeof(sin6) != res->ai_addrlen) {
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errx(1, "%s: %s", argv[0], "invalid addrlen");
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/*NOTREACHED*/
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}
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memcpy(&sin6, res->ai_addr, res->ai_addrlen);
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if (ifidx >= 0)
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sin6.sin6_scope_id = ifidx;
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if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) {
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err(1, "malloc");
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/*NOTREACHED*/
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}
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ripbuf->rip6_cmd = RIP6_REQUEST;
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ripbuf->rip6_vers = RIP6_VERSION;
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ripbuf->rip6_res1[0] = 0;
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ripbuf->rip6_res1[1] = 0;
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np = ripbuf->rip6_nets;
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bzero(&np->rip6_dest, sizeof(struct in6_addr));
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np->rip6_tag = 0;
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np->rip6_plen = 0;
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np->rip6_metric = HOPCNT_INFINITY6;
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if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6,
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sizeof(struct sockaddr_in6)) < 0) {
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err(1, "send");
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/*NOTREACHED*/
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}
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do {
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flen = sizeof(fsock);
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if ((len = recvfrom(s, ripbuf, BUFSIZ, 0,
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(struct sockaddr *)&fsock, &flen)) < 0) {
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err(1, "recvfrom");
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/*NOTREACHED*/
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}
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printf("Response from %s len %d\n",
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sa_n2a((struct sockaddr *)&fsock), len);
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n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) /
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sizeof(struct netinfo6);
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np = ripbuf->rip6_nets;
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for (i = 0; i < n; i++, np++) {
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printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest),
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np->rip6_plen, np->rip6_metric);
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if (np->rip6_tag)
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printf(" tag=0x%x", ntohs(np->rip6_tag));
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printf("\n");
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}
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} while (len == RIPSIZE(24));
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exit(0);
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}
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static void
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usage()
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{
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fprintf(stderr, "Usage: rip6query [-I iface] address\n");
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}
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/* getnameinfo() is preferred as we may be able to show ifindex as ifname */
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static const char *
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sa_n2a(sa)
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struct sockaddr *sa;
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{
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static char buf[NI_MAXHOST];
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if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf),
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NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID) != 0) {
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snprintf(buf, sizeof(buf), "%s", "(invalid)");
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}
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return buf;
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}
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static const char *
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inet6_n2a(addr)
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struct in6_addr *addr;
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{
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static char buf[NI_MAXHOST];
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return inet_ntop(AF_INET6, addr, buf, sizeof(buf));
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}
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