main.c revision 174571 
1/*-
2 * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 *    redistribution must be conditioned upon including a substantially
14 *    similar Disclaimer requirement for further binary redistribution.
15 *
16 * NO WARRANTY
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
28 *
29 * $FreeBSD: head/tools/tools/ath/athstats/main.c 174571 2007-12-13 02:01:01Z sam $
30 */
31
32/*
33 * Simple Atheros-specific tool to inspect and monitor network traffic
34 * statistics.
35 *
36 *	athstats [-i interface] [-l] [-o fmtstring] [interval]
37 *
38 * (default interface is ath0).  If interval is specified a rolling output
39 * a la netstat -i is displayed every interval seconds.  The format of
40 * the rolling display can be controlled a la ps.  The -l option will
41 * print a list of all possible statistics for use with the -o option.
42 */
43
44#include <stdio.h>
45#include <stdlib.h>
46#include <signal.h>
47#include <unistd.h>
48#include <err.h>
49
50#include "athstats.h"
51
52#define	S_DEFAULT \
53	"input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,rate"
54
55static int signalled;
56
57static void
58catchalarm(int signo __unused)
59{
60	signalled = 1;
61}
62
63int
64main(int argc, char *argv[])
65{
66	struct athstatfoo *wf;
67	const char *ifname;
68	int c;
69
70	ifname = getenv("ATH");
71	if (ifname == NULL)
72		ifname = "ath0";
73	wf = athstats_new(ifname, S_DEFAULT);
74	while ((c = getopt(argc, argv, "i:lo:")) != -1) {
75		switch (c) {
76		case 'i':
77			wf->setifname(wf, optarg);
78			break;
79		case 'l':
80			wf->print_fields(wf, stdout);
81			return 0;
82		case 'o':
83			wf->setfmt(wf, optarg);
84			break;
85		default:
86			errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [interval]\n", argv[0]);
87			/*NOTREACHED*/
88		}
89	}
90	argc -= optind;
91	argv += optind;
92
93	if (argc > 0) {
94		u_long interval = strtoul(argv[0], NULL, 0);
95		int line, omask;
96
97		if (interval < 1)
98			interval = 1;
99		signal(SIGALRM, catchalarm);
100		signalled = 0;
101		alarm(interval);
102	banner:
103		wf->print_header(wf, stdout);
104		line = 0;
105	loop:
106		if (line != 0) {
107			wf->collect_cur(wf);
108			wf->print_current(wf, stdout);
109			wf->update_tot(wf);
110		} else {
111			wf->collect_tot(wf);
112			wf->print_total(wf, stdout);
113		}
114		fflush(stdout);
115		omask = sigblock(sigmask(SIGALRM));
116		if (!signalled)
117			sigpause(0);
118		sigsetmask(omask);
119		signalled = 0;
120		alarm(interval);
121		line++;
122		if (line == 21)		/* XXX tty line count */
123			goto banner;
124		else
125			goto loop;
126		/*NOTREACHED*/
127	} else {
128		wf->collect_tot(wf);
129		wf->print_verbose(wf, stdout);
130	}
131	return 0;
132}
133