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 #include <netinet/in.h>
50 #include <netinet/in_var.h>
51 #include <arpa/inet.h>
57 static struct sockaddr_in6 sin6
;
58 static struct rip6
*ripbuf
;
60 #define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6))
62 int main(int, char **);
63 static void usage(void);
64 static const char *sa_n2a(struct sockaddr
*);
65 static const char *inet6_n2a(struct in6_addr
*);
68 main(int argc
, char *argv
[])
71 struct sockaddr_in6 fsock
;
78 struct addrinfo hints
, *res
;
80 while ((c
= getopt(argc
, argv
, "I:")) != -1) {
83 ifidx
= if_nametoindex(optarg
);
85 errx(1, "invalid interface %s", optarg
);
103 if ((s
= socket(AF_INET6
, SOCK_DGRAM
, 0)) < 0) {
108 /* getaddrinfo is preferred for addr@ifname syntax */
109 snprintf(pbuf
, sizeof(pbuf
), "%d", RIP6_PORT
);
110 memset(&hints
, 0, sizeof(hints
));
111 hints
.ai_family
= AF_INET6
;
112 hints
.ai_socktype
= SOCK_DGRAM
;
113 error
= getaddrinfo(argv
[0], pbuf
, &hints
, &res
);
115 errx(1, "%s: %s", argv
[0], gai_strerror(error
));
119 errx(1, "%s: %s", argv
[0], "resolved to multiple addrs");
122 if (sizeof(sin6
) != res
->ai_addrlen
) {
123 errx(1, "%s: %s", argv
[0], "invalid addrlen");
126 memcpy(&sin6
, res
->ai_addr
, res
->ai_addrlen
);
128 sin6
.sin6_scope_id
= ifidx
;
130 if ((ripbuf
= (struct rip6
*)malloc(BUFSIZ
)) == NULL
) {
134 ripbuf
->rip6_cmd
= RIP6_REQUEST
;
135 ripbuf
->rip6_vers
= RIP6_VERSION
;
136 ripbuf
->rip6_res1
[0] = 0;
137 ripbuf
->rip6_res1
[1] = 0;
138 np
= ripbuf
->rip6_nets
;
139 bzero(&np
->rip6_dest
, sizeof(struct in6_addr
));
142 np
->rip6_metric
= HOPCNT_INFINITY6
;
143 if (sendto(s
, ripbuf
, RIPSIZE(1), 0, (struct sockaddr
*)&sin6
,
144 sizeof(struct sockaddr_in6
)) < 0) {
149 flen
= sizeof(fsock
);
150 if ((len
= recvfrom(s
, ripbuf
, BUFSIZ
, 0,
151 (struct sockaddr
*)&fsock
, &flen
)) < 0) {
155 printf("Response from %s len %d\n",
156 sa_n2a((struct sockaddr
*)&fsock
), len
);
157 n
= (len
- sizeof(struct rip6
) + sizeof(struct netinfo6
)) /
158 sizeof(struct netinfo6
);
159 np
= ripbuf
->rip6_nets
;
160 for (i
= 0; i
< n
; i
++, np
++) {
161 printf("\t%s/%d [%d]", inet6_n2a(&np
->rip6_dest
),
162 np
->rip6_plen
, np
->rip6_metric
);
164 printf(" tag=0x%x", ntohs(np
->rip6_tag
));
167 } while (len
== RIPSIZE(24));
175 fprintf(stderr
, "usage: rip6query [-I iface] address\n");
178 /* getnameinfo() is preferred as we may be able to show ifindex as ifname */
180 sa_n2a(struct sockaddr
*sa
)
182 static char buf
[NI_MAXHOST
];
184 if (getnameinfo(sa
, sa
->sa_len
, buf
, sizeof(buf
),
185 NULL
, 0, NI_NUMERICHOST
) != 0) {
186 snprintf(buf
, sizeof(buf
), "%s", "(invalid)");
192 inet6_n2a(struct in6_addr
*addr
)
194 static char buf
[NI_MAXHOST
];
196 return inet_ntop(AF_INET6
, addr
, buf
, sizeof(buf
));