diff options
Diffstat (limited to 'usr.sbin/rip6query/rip6query.c')
| -rw-r--r-- | usr.sbin/rip6query/rip6query.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/usr.sbin/rip6query/rip6query.c b/usr.sbin/rip6query/rip6query.c new file mode 100644 index 00000000000..9859528549c --- /dev/null +++ b/usr.sbin/rip6query/rip6query.c @@ -0,0 +1,206 @@ +/* $OpenBSD: rip6query.c,v 1.1 2000/01/19 08:13:01 itojun Exp $ */ + +/* + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. + * All rights reserved. + * + * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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. + */ + +#include <stdio.h> + +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <signal.h> +#include <err.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <net/if.h> +#if defined(__FreeBSD__) && __FreeBSD__ >= 3 +#include <net/if_var.h> +#endif /* __FreeBSD__ >= 3 */ +#include <netinet/in.h> +#include <netinet/in_var.h> +#include <arpa/inet.h> +#include <netdb.h> + +#include "route6d.h" + +/* wrapper for KAME-special getnameinfo() */ +#ifndef NI_WITHSCOPEID +#define NI_WITHSCOPEID 0 +#endif + +int s; +extern int errno; +struct sockaddr_in6 sin6; +struct rip6 *ripbuf; + +#define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6)) + +int main __P((int, char **)); +static void usage __P((void)); +static const char *sa_n2a __P((struct sockaddr *)); +static const char *inet6_n2a __P((struct in6_addr *)); + +int +main(argc, argv) + int argc; + char **argv; +{ + struct netinfo6 *np; + struct sockaddr_in6 fsock; + int i, n, len, flen; + int c; + extern char *optarg; + extern int optind; + int ifidx = -1; + int error; + char pbuf[10]; + struct addrinfo hints, *res; + + while ((c = getopt(argc, argv, "I:")) != EOF) { + switch (c) { + case 'I': + ifidx = if_nametoindex(optarg); + if (ifidx == 0) { + errx(1, "invalid interface %s", optarg); + /*NOTREACHED*/ + } + break; + default: + usage(); + exit(1); + /*NOTREACHED*/ + } + } + argv += optind; + argc -= optind; + + if (argc != 1) { + usage(); + exit(-1); + } + + if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { + err(1, "socket"); + /*NOTREACHED*/ + } + + /* getaddrinfo is preferred for addr@ifname syntax */ + snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT); + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_DGRAM; + error = getaddrinfo(argv[0], pbuf, &hints, &res); + if (error) { + errx(1, "%s: %s", argv[0], gai_strerror(error)); + /*NOTREACHED*/ + } + if (res->ai_next) { + errx(1, "%s: %s", argv[0], "resolved to multiple addrs"); + /*NOTREACHED*/ + } + if (sizeof(sin6) != res->ai_addrlen) { + errx(1, "%s: %s", argv[0], "invalid addrlen"); + /*NOTREACHED*/ + } + memcpy(&sin6, res->ai_addr, res->ai_addrlen); + if (ifidx >= 0) + sin6.sin6_scope_id = ifidx; + + if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) { + err(1, "malloc"); + /*NOTREACHED*/ + } + ripbuf->rip6_cmd = RIP6_REQUEST; + ripbuf->rip6_vers = RIP6_VERSION; + ripbuf->rip6_res1[0] = 0; + ripbuf->rip6_res1[1] = 0; + np = ripbuf->rip6_nets; + bzero(&np->rip6_dest, sizeof(struct in6_addr)); + np->rip6_tag = 0; + np->rip6_plen = 0; + np->rip6_metric = HOPCNT_INFINITY6; + if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6, + sizeof(struct sockaddr_in6)) < 0) { + err(1, "send"); + /*NOTREACHED*/ + } + do { + flen = sizeof(fsock); + if ((len = recvfrom(s, ripbuf, BUFSIZ, 0, + (struct sockaddr *)&fsock, &flen)) < 0) { + err(1, "recvfrom"); + /*NOTREACHED*/ + } + printf("Response from %s len %d\n", + sa_n2a((struct sockaddr *)&fsock), len); + n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) / + sizeof(struct netinfo6); + np = ripbuf->rip6_nets; + for (i = 0; i < n; i++, np++) { + printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest), + np->rip6_plen, np->rip6_metric); + if (np->rip6_tag) + printf(" tag=0x%x", ntohs(np->rip6_tag)); + printf("\n"); + } + } while (len == RIPSIZE(24)); + + exit(0); +} + +static void +usage() +{ + fprintf(stderr, "Usage: rip6query [-I iface] address\n"); +} + +/* getnameinfo() is preferred as we may be able to show ifindex as ifname */ +static const char * +sa_n2a(sa) + struct sockaddr *sa; +{ + static char buf[NI_MAXHOST]; + + if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), + NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID) != 0) { + snprintf(buf, sizeof(buf), "%s", "(invalid)"); + } + return buf; +} + +static const char * +inet6_n2a(addr) + struct in6_addr *addr; +{ + static char buf[NI_MAXHOST]; + + return inet_ntop(AF_INET6, addr, buf, sizeof(buf)); +} |