Merge branch 'vendor/DHCPCD'
[dragonfly.git] / tools / tools / ath / athstats / main.c
1 /*-
2  * Copyright (c) 2002-2009 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: src/tools/tools/ath/athstats/main.c,v 1.8 2009/03/02 05:07:05 sam Exp $
30  */
31
32 /*
33  * Simple Atheros-specific tool to inspect and monitor network traffic
34  * statistics.
35  *
36  *      athstats [-i interface] [-bz] [-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 static struct {
53         const char *tag;
54         const char *fmt;
55 } tags[] = {
56   { "default",
57     "input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,rate"
58   },
59   { "ani",
60     "avgbrssi,avgrssi,avgtxrssi,NI,SI,step,owsd,cwst,NI+,NI-,SI+,SI-,OFDM,CCK,LISTEN"
61   },
62   { "tdma",
63     "input,output,bexmit,tdmau,tdmadj,crcerr,phyerr,phytor,rssi,noise,rate"
64   },
65 };
66
67 static const char *
68 getfmt(const char *tag)
69 {
70 #define N(a)    (sizeof(a)/sizeof(a[0]))
71         int i;
72         for (i = 0; i < N(tags); i++)
73                 if (strcasecmp(tags[i].tag, tag) == 0)
74                         return tags[i].fmt;
75         return tag;
76 #undef N
77 }
78
79 static int signalled;
80
81 static void
82 catchalarm(int signo __unused)
83 {
84         signalled = 1;
85 }
86
87 int
88 main(int argc, char *argv[])
89 {
90         struct athstatfoo *wf;
91         const char *ifname;
92         int c, banner = 1;
93
94         ifname = getenv("ATH");
95         if (ifname == NULL)
96                 ifname = "ath0";
97         wf = athstats_new(ifname, getfmt("default"));
98         while ((c = getopt(argc, argv, "bi:lo:z")) != -1) {
99                 switch (c) {
100                 case 'b':
101                         banner = 0;
102                         break;
103                 case 'i':
104                         wf->setifname(wf, optarg);
105                         break;
106                 case 'l':
107                         wf->print_fields(wf, stdout);
108                         return 0;
109                 case 'o':
110                         wf->setfmt(wf, getfmt(optarg));
111                         break;
112                 case 'z':
113                         wf->zerostats(wf);
114                         break;
115                 default:
116                         errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [-z] [interval]\n", argv[0]);
117                         /*NOTREACHED*/
118                 }
119         }
120         argc -= optind;
121         argv += optind;
122
123         if (argc > 0) {
124                 u_long interval = strtoul(argv[0], NULL, 0);
125                 int line, omask;
126
127                 if (interval < 1)
128                         interval = 1;
129                 signal(SIGALRM, catchalarm);
130                 signalled = 0;
131                 alarm(interval);
132         banner:
133                 if (banner)
134                         wf->print_header(wf, stdout);
135                 line = 0;
136         loop:
137                 if (line != 0) {
138                         wf->collect_cur(wf);
139                         wf->print_current(wf, stdout);
140                         wf->update_tot(wf);
141                 } else {
142                         wf->collect_tot(wf);
143                         wf->print_total(wf, stdout);
144                 }
145                 fflush(stdout);
146                 omask = sigblock(sigmask(SIGALRM));
147                 if (!signalled)
148                         sigpause(0);
149                 sigsetmask(omask);
150                 signalled = 0;
151                 alarm(interval);
152                 line++;
153                 if (line == 21)         /* XXX tty line count */
154                         goto banner;
155                 else
156                         goto loop;
157                 /*NOTREACHED*/
158         } else {
159                 wf->collect_tot(wf);
160                 wf->print_verbose(wf, stdout);
161         }
162         return 0;
163 }