1 /* $KAME: rip6query.c,v 1.11 2001/05/08 04:36:37 itojun Exp $ */
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 #include <sys/types.h>
45 #include <sys/socket.h>
46 #include <sys/queue.h>
49 #if defined(__FreeBSD__) && __FreeBSD__ >= 3
50 #include <net/if_var.h>
51 #endif /* __FreeBSD__ >= 3 */
52 #include <netinet/in.h>
53 #include <netinet/in_var.h>
54 #include <arpa/inet.h>
60 struct sockaddr_in6 sin6;
63 #define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6))
65 int main(int, char **);
66 static void usage(void);
67 static const char *sa_n2a(struct sockaddr *);
68 static const char *inet6_n2a(struct in6_addr *);
76 struct sockaddr_in6 fsock;
83 struct addrinfo hints, *res;
85 while ((c = getopt(argc, argv, "I:")) != -1) {
88 ifidx = if_nametoindex(optarg);
90 errx(1, "invalid interface %s", optarg);
108 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
113 /* getaddrinfo is preferred for addr@ifname syntax */
114 snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT);
115 memset(&hints, 0, sizeof(hints));
116 hints.ai_family = AF_INET6;
117 hints.ai_socktype = SOCK_DGRAM;
118 error = getaddrinfo(argv[0], pbuf, &hints, &res);
120 errx(1, "%s: %s", argv[0], gai_strerror(error));
124 errx(1, "%s: %s", argv[0], "resolved to multiple addrs");
127 if (sizeof(sin6) != res->ai_addrlen) {
128 errx(1, "%s: %s", argv[0], "invalid addrlen");
131 memcpy(&sin6, res->ai_addr, res->ai_addrlen);
133 sin6.sin6_scope_id = ifidx;
135 if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) {
139 ripbuf->rip6_cmd = RIP6_REQUEST;
140 ripbuf->rip6_vers = RIP6_VERSION;
141 ripbuf->rip6_res1[0] = 0;
142 ripbuf->rip6_res1[1] = 0;
143 np = ripbuf->rip6_nets;
144 bzero(&np->rip6_dest, sizeof(struct in6_addr));
147 np->rip6_metric = HOPCNT_INFINITY6;
148 if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6,
149 sizeof(struct sockaddr_in6)) < 0) {
154 flen = sizeof(fsock);
155 if ((len = recvfrom(s, ripbuf, BUFSIZ, 0,
156 (struct sockaddr *)&fsock, &flen)) < 0) {
160 printf("Response from %s len %d\n",
161 sa_n2a((struct sockaddr *)&fsock), len);
162 n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) /
163 sizeof(struct netinfo6);
164 np = ripbuf->rip6_nets;
165 for (i = 0; i < n; i++, np++) {
166 printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest),
167 np->rip6_plen, np->rip6_metric);
169 printf(" tag=0x%x", ntohs(np->rip6_tag));
172 } while (len == RIPSIZE(24));
180 fprintf(stderr, "usage: rip6query [-I iface] address\n");
183 /* getnameinfo() is preferred as we may be able to show ifindex as ifname */
188 static char buf[NI_MAXHOST];
190 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf),
191 NULL, 0, NI_NUMERICHOST) != 0) {
192 snprintf(buf, sizeof(buf), "%s", "(invalid)");
199 struct in6_addr *addr;
201 static char buf[NI_MAXHOST];
203 return inet_ntop(AF_INET6, addr, buf, sizeof(buf));