NetBSD/usr.bin/netstat/route.c

79 lines
2.8 KiB
C

/* $NetBSD: route.c,v 1.80 2013/01/28 13:49:08 joerg Exp $ */
/*
* Copyright (c) 1983, 1988, 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. 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.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: route.c,v 1.80 2013/01/28 13:49:08 joerg Exp $");
#include <sys/sysctl.h>
#include <net/route.h>
#include <err.h>
#include "netstat.h"
/*
* Print routing statistics
*/
void
rt_stats(u_long off)
{
struct rtstat rtstats;
if (use_sysctl) {
size_t rtsize = sizeof(rtstats);
if (sysctlbyname("net.route.stats", &rtstats, &rtsize,
NULL, 0) == -1)
err(1, "rt_stats: sysctl");
} else if (off == 0) {
printf("rtstat: symbol not in namelist\n");
return;
} else
kread(off, (char *)&rtstats, sizeof(rtstats));
printf("routing:\n");
printf("\t%llu bad routing redirect%s\n",
(unsigned long long)rtstats.rts_badredirect,
plural(rtstats.rts_badredirect));
printf("\t%llu dynamically created route%s\n",
(unsigned long long)rtstats.rts_dynamic,
plural(rtstats.rts_dynamic));
printf("\t%llu new gateway%s due to redirects\n",
(unsigned long long)rtstats.rts_newgateway,
plural(rtstats.rts_newgateway));
printf("\t%llu destination%s found unreachable\n",
(unsigned long long)rtstats.rts_unreach,
plural(rtstats.rts_unreach));
printf("\t%llu use%s of a wildcard route\n",
(unsigned long long)rtstats.rts_wildcard,
plural(rtstats.rts_wildcard));
}