Add a little program to test the functionality of RSRR by getting

a vif list and printing it a la netstat -g (but simpler).  This
doesn't get installed, so there's no man page.

usr.sbin/mrouted/Makefile

@@ -1,5 +1,5 @@
-#	$Id$
+#	$Id: Makefile,v 1.1 1994/09/08 02:51:09 wollman Exp $
 
-SUBDIR=	common mrouted mrinfo map-mbone mtrace
+SUBDIR=	common mrouted mrinfo map-mbone mtrace testrsrr
 
 .include <bsd.subdir.mk>

usr.sbin/mrouted/testrsrr/Makefile

@@ -0,0 +1,14 @@
+#	$Id: Makefile,v 1.1 1994/09/08 02:51:37 wollman Exp $
+
+PROG=	testrsrr
+
+S=	${.CURDIR}/..
+.PATH:	$S
+CFLAGS+=	-I$S
+
+SRCS=	testrsrr.c
+NOMAN=
+
+install:
+
+.include <bsd.prog.mk>

usr.sbin/mrouted/testrsrr/testrsrr.c

@@ -0,0 +1,124 @@
+/*
+ * Copyright 1995 Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby
+ * granted, provided that both the above copyright notice and this
+ * permission notice appear in all copies, that both the above
+ * copyright notice and this permission notice appear in all
+ * supporting documentation, and that the name of M.I.T. not be used
+ * in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.  M.I.T. makes
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
+ * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+ * SHALL M.I.T. 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.
+ *
+ *	$Id$
+ */
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <sysexits.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "rsrr.h"
+
+char sunpath[MAXPATHLEN];
+int s;
+
+void exitfn(void) {
+	close(s);
+	unlink(sunpath);
+}
+
+int main(void) {
+	struct sockaddr_un sun;
+	char buf[RSRR_MAX_LEN];
+	struct rsrr_header *rh;
+	struct rsrr_vif *rvp;
+	int i;
+
+	s = socket(PF_LOCAL, SOCK_DGRAM, 0);
+	if (s < 0) {
+		err(EX_OSERR, "socket(PF_LOCAL, SOCK_DGRAM, 0)");
+	}
+
+	sun.sun_family = AF_LOCAL;
+	snprintf(sunpath, sizeof sun.sun_path, "/tmp/testrsrr.%lu", 
+		 (unsigned long)getpid());
+	strcpy(sun.sun_path, sunpath);
+	sun.sun_len = (offsetof(struct sockaddr_un, sun_path) 
+		       + strlen(sunpath));
+
+	if (bind(s, (struct sockaddr *)&sun, sun.sun_len) < 0) {
+		err(EX_OSERR, "bind: %s", sunpath);
+	}
+
+	atexit(exitfn);		/* clean up if we exit on error */
+
+	strcpy(sun.sun_path, RSRR_SERV_PATH);
+	sun.sun_len = (offsetof(struct sockaddr_un, sun_path) 
+		       + strlen(sunpath));
+
+	if (connect(s, (struct sockaddr *)&sun, sun.sun_len) < 0) {
+		err(EX_OSERR, "connect: %s", RSRR_SERV_PATH);
+	}
+
+	rh = (struct rsrr_header *)buf;
+	rh->version = RSRR_MAX_VERSION;
+	rh->type = RSRR_INITIAL_QUERY;
+	rh->flags = 0;
+	rh->num = 0;
+
+	if (write(s, rh, sizeof *rh) == (ssize_t)-1) {
+		err(EX_OSERR, "write(initial query)");
+	}
+
+	if (read(s, buf, sizeof buf) == (ssize_t)-1) {
+		err(EX_OSERR, "read(initial reply)");
+	}
+
+	if (rh->version != RSRR_MAX_VERSION) {
+		errx(EX_PROTOCOL, "bad remote version %d", rh->version);
+	}
+
+	if (rh->type != RSRR_INITIAL_REPLY) {
+		errx(EX_PROTOCOL, "remote returned unexpected message type %d",
+		     rh->type);
+	}
+
+	if (rh->flags) {
+		printf("confusing flags: %d\n", rh->flags);
+	}
+
+	printf("There are %d vifs configured:\n", rh->num);
+
+	printf(" Vif  Thresh  Status  Local address\n");
+	for(i = 0, rvp = (struct rsrr_vif *)(rh + 1); i < rh->num; i++,rvp++) {
+		printf(" %3d  %6d  %6d  %s\n", rvp->id, rvp->threshold,
+		       rvp->status, inet_ntoa(rvp->local_addr));
+	}
+	exit(0);
+}