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/*-
* Copyright (c) 2009 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <strings.h>
#include <unistd.h>
#include <err.h>
#include "npestats.h"
static struct {
const char *tag;
const char *fmt;
} tags[] = {
{ "default",
"align,fcs,macrx,overrun,learn,large,stp,badsrc,underflow,collision1,collisionM,deferred,late,excessive,mactx,carrier,toobig"
},
};
static const char *
getfmt(const char *tag)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
int i;
for (i = 0; i < N(tags); i++)
if (strcasecmp(tags[i].tag, tag) == 0)
return tags[i].fmt;
return tag;
#undef N
}
static int signalled;
static void
catchalarm(int signo __unused)
{
signalled = 1;
}
int
main(int argc, char *argv[])
{
struct npestatfoo *wf;
const char *ifname;
int c, banner = 1;
ifname = getenv("NPE");
if (ifname == NULL)
ifname = "npe0";
wf = npestats_new(ifname, getfmt("default"));
while ((c = getopt(argc, argv, "bi:lo:z")) != -1) {
switch (c) {
case 'b':
banner = 0;
break;
case 'i':
wf->setifname(wf, optarg);
break;
case 'l':
wf->print_fields(wf, stdout);
return 0;
case 'o':
wf->setfmt(wf, getfmt(optarg));
break;
default:
errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [interval]\n", argv[0]);
/*NOTREACHED*/
}
}
argc -= optind;
argv += optind;
if (argc > 0) {
u_long interval = strtoul(argv[0], NULL, 0);
int line, omask;
if (interval < 1)
interval = 1;
signal(SIGALRM, catchalarm);
signalled = 0;
alarm(interval);
banner:
if (banner)
wf->print_header(wf, stdout);
line = 0;
loop:
if (line != 0) {
wf->collect_cur(wf);
wf->print_current(wf, stdout);
wf->update_tot(wf);
} else {
wf->collect_tot(wf);
wf->print_total(wf, stdout);
}
fflush(stdout);
omask = sigblock(sigmask(SIGALRM));
if (!signalled)
sigpause(0);
sigsetmask(omask);
signalled = 0;
alarm(interval);
line++;
if (line == 21) /* XXX tty line count */
goto banner;
else
goto loop;
/*NOTREACHED*/
} else {
wf->collect_tot(wf);
wf->print_verbose(wf, stdout);
}
return 0;
}
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