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
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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
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31 * $FreeBSD: src/usr.sbin/rip6query/rip6query.c,v 1.3.2.2 2001/07/03 11:02:08 ume Exp $
32 * $DragonFly: src/usr.sbin/rip6query/rip6query.c,v 1.5 2005/12/05 02:40:28 swildner Exp $
45 #include <sys/types.h>
46 #include <sys/socket.h>
47 #include <sys/queue.h>
50 #if defined(__DragonFly__)
51 #include <net/if_var.h>
52 #endif /* __DragonFly__ */
53 #include <netinet/in.h>
54 #include <netinet/in_var.h>
55 #include <arpa/inet.h>
60 /* wrapper for KAME-special getnameinfo() */
61 #ifndef NI_WITHSCOPEID
62 #define NI_WITHSCOPEID 0
66 struct sockaddr_in6 sin6;
69 #define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6))
71 int main(int, char **);
72 static void usage(void);
73 static const char *sa_n2a(struct sockaddr *);
74 static const char *inet6_n2a(struct in6_addr *);
77 main(int argc, char **argv)
80 struct sockaddr_in6 fsock;
86 struct addrinfo hints, *res;
88 while ((c = getopt(argc, argv, "I:")) != -1) {
91 ifidx = if_nametoindex(optarg);
93 errx(1, "invalid interface %s", optarg);
111 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
116 /* getaddrinfo is preferred for addr@ifname syntax */
117 snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT);
118 memset(&hints, 0, sizeof(hints));
119 hints.ai_family = AF_INET6;
120 hints.ai_socktype = SOCK_DGRAM;
121 error = getaddrinfo(argv[0], pbuf, &hints, &res);
123 errx(1, "%s: %s", argv[0], gai_strerror(error));
127 errx(1, "%s: %s", argv[0], "resolved to multiple addrs");
130 if (sizeof(sin6) != res->ai_addrlen) {
131 errx(1, "%s: %s", argv[0], "invalid addrlen");
134 memcpy(&sin6, res->ai_addr, res->ai_addrlen);
136 sin6.sin6_scope_id = ifidx;
138 if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) {
142 ripbuf->rip6_cmd = RIP6_REQUEST;
143 ripbuf->rip6_vers = RIP6_VERSION;
144 ripbuf->rip6_res1[0] = 0;
145 ripbuf->rip6_res1[1] = 0;
146 np = ripbuf->rip6_nets;
147 bzero(&np->rip6_dest, sizeof(struct in6_addr));
150 np->rip6_metric = HOPCNT_INFINITY6;
151 if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6,
152 sizeof(struct sockaddr_in6)) < 0) {
157 flen = sizeof(fsock);
158 if ((len = recvfrom(s, ripbuf, BUFSIZ, 0,
159 (struct sockaddr *)&fsock, &flen)) < 0) {
163 printf("Response from %s len %d\n",
164 sa_n2a((struct sockaddr *)&fsock), len);
165 n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) /
166 sizeof(struct netinfo6);
167 np = ripbuf->rip6_nets;
168 for (i = 0; i < n; i++, np++) {
169 printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest),
170 np->rip6_plen, np->rip6_metric);
172 printf(" tag=0x%x", ntohs(np->rip6_tag));
175 } while (len == RIPSIZE(24));
183 fprintf(stderr, "Usage: rip6query [-I iface] address\n");
186 /* getnameinfo() is preferred as we may be able to show ifindex as ifname */
188 sa_n2a(struct sockaddr *sa)
190 static char buf[NI_MAXHOST];
192 if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf),
193 NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID) != 0) {
194 snprintf(buf, sizeof(buf), "%s", "(invalid)");
200 inet6_n2a(struct in6_addr *addr)
202 static char buf[NI_MAXHOST];
204 return inet_ntop(AF_INET6, addr, buf, sizeof(buf));