1 files changed, 294 insertions, 0 deletions

diff --git a/usr.sbin/routed/query/query.c b/usr.sbin/routed/query/query.c
new file mode 100644
index 0000000..a800388
--- /dev/null
+++ b/usr.sbin/routed/query/query.c
@@ -0,0 +1,294 @@
+/*-
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1982, 1986, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)query.c	8.1 (Berkeley) 6/5/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/protosw.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <signal.h>
+#include <netinet/in.h>
+#include <protocols/routed.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define	WTIME	5		/* Time to wait for all responses */
+#define	STIME	500000		/* usec to wait for another response */
+
+int	s;
+int	timedout;
+void	timeout();
+char	packet[MAXPACKETSIZE];
+int	nflag;
+
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern char *optarg;
+	extern int optind;
+	int ch, cc, count, bits;
+	struct sockaddr from;
+	struct sigaction sigact;
+	int fromlen = sizeof(from), size = 32*1024;
+	struct timeval shorttime;
+
+	while ((ch = getopt(argc, argv, "n")) != EOF)
+		switch (ch) {
+		case 'n':
+			nflag++;
+			break;
+		case '?':
+		default:
+			goto usage;
+		}
+	argv += optind;
+
+	if (!*argv) {
+usage:		printf("usage: query [-n] hosts...\n");
+		exit(1);
+	}
+
+	s = socket(AF_INET, SOCK_DGRAM, 0);
+	if (s < 0) {
+		perror("socket");
+		exit(2);
+	}
+	if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)) < 0)
+		perror("setsockopt SO_RCVBUF");
+
+	while (*argv) {
+		query(*argv++);
+		count++;
+	}
+
+	/*
+	 * Listen for returning packets;
+	 * may be more than one packet per host.
+	 */
+	bits = 1 << s;
+	bzero(&shorttime, sizeof(shorttime));
+	shorttime.tv_usec = STIME;
+	bzero(&sigact, sizeof(sigact));
+	sigact.sa_handler = timeout;
+	/*sigact.sa_flags = 0;		/* no restart */
+	if (sigaction(SIGALRM, &sigact, (struct sigaction *)NULL) == -1)
+		perror("sigaction");
+	alarm(WTIME);
+	while ((count > 0 && !timedout) ||
+	    select(20, (fd_set *)&bits, NULL, NULL, &shorttime) > 0) {
+		cc = recvfrom(s, packet, sizeof (packet), 0,
+		  &from, &fromlen);
+		if (cc <= 0) {
+			if (cc < 0) {
+				if (errno == EINTR)
+					continue;
+				perror("recvfrom");
+				(void) close(s);
+				exit(1);
+			}
+			continue;
+		}
+		rip_input(&from, cc);
+		count--;
+	}
+	exit (count > 0 ? count : 0);
+}
+
+query(host)
+	char *host;
+{
+	struct sockaddr_in router;
+	register struct rip *msg = (struct rip *)packet;
+	struct hostent *hp;
+	struct servent *sp;
+
+	bzero((char *)&router, sizeof (router));
+	router.sin_family = AF_INET;
+	router.sin_addr.s_addr = inet_addr(host);
+	if (router.sin_addr.s_addr == -1) {
+		hp = gethostbyname(host);
+		if (hp == NULL) {
+			fprintf(stderr, "query: %s: ", host);
+			herror((char *)NULL);
+			exit(1);
+		}
+		bcopy(hp->h_addr, &router.sin_addr, hp->h_length);
+	}
+	sp = getservbyname("router", "udp");
+	if (sp == 0) {
+		printf("udp/router: service unknown\n");
+		exit(1);
+	}
+	router.sin_port = sp->s_port;
+	msg->rip_cmd = RIPCMD_REQUEST;
+	msg->rip_vers = RIPVERSION;
+	msg->rip_nets[0].rip_dst.sa_family = htons(AF_UNSPEC);
+	msg->rip_nets[0].rip_metric = htonl(HOPCNT_INFINITY);
+	if (sendto(s, packet, sizeof (struct rip), 0,
+	  (struct sockaddr *)&router, sizeof(router)) < 0)
+		perror(host);
+}
+
+/*
+ * Handle an incoming routing packet.
+ */
+rip_input(from, size)
+	struct sockaddr_in *from;
+	int size;
+{
+	register struct rip *msg = (struct rip *)packet;
+	register struct netinfo *n;
+	char *name;
+	int lna, net, subnet;
+	struct hostent *hp;
+	struct netent *np;
+
+	if (msg->rip_cmd != RIPCMD_RESPONSE)
+		return;
+	printf("%d bytes from ", size);
+	if (nflag)
+		printf("%s:\n", inet_ntoa(from->sin_addr));
+	else {
+		hp = gethostbyaddr((char *)&from->sin_addr,
+		    sizeof (struct in_addr), AF_INET);
+		name = hp == 0 ? "???" : hp->h_name;
+		printf("%s(%s):\n", name, inet_ntoa(from->sin_addr));
+	}
+	size -= sizeof (int);
+	n = msg->rip_nets;
+	while (size > 0) {
+	    if (size < sizeof (struct netinfo))
+		    break;
+	    if (msg->rip_vers > 0) {
+		    n->rip_dst.sa_family =
+			    ntohs(n->rip_dst.sa_family);
+		    n->rip_metric = ntohl(n->rip_metric);
+	    }
+	    switch (n->rip_dst.sa_family) {
+
+	    case AF_INET:
+		{ register struct sockaddr_in *sin;
+
+		sin = (struct sockaddr_in *)&n->rip_dst;
+		net = inet_netof(sin->sin_addr);
+		subnet = inet_subnetof(sin->sin_addr);
+		lna = inet_lnaof(sin->sin_addr);
+		name = "???";
+		if (!nflag) {
+			if (sin->sin_addr.s_addr == 0)
+				name = "default";
+			else if (lna == INADDR_ANY) {
+				np = getnetbyaddr(net, AF_INET);
+				if (np)
+					name = np->n_name;
+				else if (net == 0)
+					name = "default";
+			} else if ((lna & 0xff) == 0 &&
+			    (np = getnetbyaddr(subnet, AF_INET))) {
+				struct in_addr subnaddr, inet_makeaddr();
+
+				subnaddr = inet_makeaddr(subnet, INADDR_ANY);
+				if (bcmp(&sin->sin_addr, &subnaddr,
+				    sizeof(subnaddr)) == 0)
+					name = np->n_name;
+				else
+					goto host;
+			} else {
+	host:
+				hp = gethostbyaddr((char *)&sin->sin_addr,
+				    sizeof (struct in_addr), AF_INET);
+				if (hp)
+					name = hp->h_name;
+			}
+			printf("\t%-17s metric %2d name %s\n",
+				inet_ntoa(sin->sin_addr), n->rip_metric, name);
+		} else
+			printf("\t%-17s metric %2d\n",
+				inet_ntoa(sin->sin_addr), n->rip_metric);
+		break;
+		}
+
+	    default:
+		{ u_short *p = (u_short *)n->rip_dst.sa_data;
+
+		printf("\t(af %d) %x %x %x %x %x %x %x, metric %d\n",
+		    p[0], p[1], p[2], p[3], p[4], p[5], p[6],
+		    n->rip_dst.sa_family,
+		    n->rip_metric);
+		break;
+		}
+			
+	    }
+	    size -= sizeof (struct netinfo), n++;
+	}
+}
+
+void
+timeout()
+{
+	timedout = 1;
+}
+
+/*
+ * Return the possible subnetwork number from an internet address.
+ * SHOULD FIND OUT WHETHER THIS IS A LOCAL NETWORK BEFORE LOOKING
+ * INSIDE OF THE HOST PART.  We can only believe this if we have other
+ * information (e.g., we can find a name for this number).
+ */
+inet_subnetof(in)
+	struct in_addr in;
+{
+	register u_long i = ntohl(in.s_addr);
+
+	if (IN_CLASSA(i))
+		return ((i & IN_CLASSB_NET) >> IN_CLASSB_NSHIFT);
+	else if (IN_CLASSB(i))
+		return ((i & IN_CLASSC_NET) >> IN_CLASSC_NSHIFT);
+	else
+		return ((i & 0xffffffc0) >> 28);
+}