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/*
* 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);
}
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