File: check_game.c

package info (click to toggle)
nagios-plugins 1.4-6sarge2
  • links: PTS
  • area: main
  • in suites: sarge
  • size: 4,892 kB
  • ctags: 3,369
  • sloc: ansic: 29,379; perl: 12,117; sh: 5,836; makefile: 540; python: 444; yacc: 316; awk: 46; sed: 16
file content (348 lines) | stat: -rw-r--r-- 9,804 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
/******************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: check_game.c,v 1.22 2004/12/25 23:17:44 opensides Exp $
*****************************************************************************/

const char *progname = "check_game";
const char *revision = "$Revision: 1.22 $";
const char *copyright = "2002-2004";
const char *email = "nagiosplug-devel@lists.sourceforge.net";

#include "common.h"
#include "popen.h"
#include "utils.h"

int process_arguments (int, char **);
int validate_arguments (void);
void print_help (void);
void print_usage (void);

#define QSTAT_DATA_DELIMITER 	","

#define QSTAT_HOST_ERROR	"ERROR"
#define QSTAT_HOST_DOWN		"DOWN"
#define QSTAT_HOST_TIMEOUT	"TIMEOUT"
#define QSTAT_MAX_RETURN_ARGS	12

char *server_ip;
char *game_type;
int port = 0;

int verbose;

int qstat_game_players_max = -1;
int qstat_game_players = -1;
int qstat_game_field = -1;
int qstat_map_field = -1;
int qstat_ping_field = -1;


int
main (int argc, char **argv)
{
	char *command_line;
	int result = STATE_UNKNOWN;
	FILE *fp;
	char input_buffer[MAX_INPUT_BUFFER];
	char *p, *ret[QSTAT_MAX_RETURN_ARGS];
	int i;

	setlocale (LC_ALL, "");
	bindtextdomain (PACKAGE, LOCALEDIR);
	textdomain (PACKAGE);
	
	if (process_arguments (argc, argv) == ERROR)
		usage4 (_("Could not parse arguments"));

	result = STATE_OK;

	/* create the command line to execute */
	asprintf (&command_line, "%s -raw %s -%s %s",
						PATH_TO_QSTAT, QSTAT_DATA_DELIMITER, game_type, server_ip);
	
	if (port)
		asprintf (&command_line, "%s:%-d", command_line, port);

	if (verbose > 0)
		printf ("%s\n", command_line);

	/* run the command */
	fp = spopen (command_line);
	if (fp == NULL) {
		printf (_("Could not open pipe: %s\n"), command_line);
		return STATE_UNKNOWN;
	}

	fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp);	/* Only interested in the first line */

	/* strip the newline character from the end of the input */
	input_buffer[strlen (input_buffer) - 1] = 0;

	/* sanity check */
	/* was thinking about running qstat without any options, capturing the
	   -default line, parsing it & making an array of all know server types
	   but thought this would be too much hassle considering this is a tool
	   for intelligent sysadmins (ha). Could put a static array of known 
	   server types in a header file but then we'd be limiting ourselves

	   In the end, I figured I'd simply let an error occur & then trap it
	 */

	if (!strncmp (input_buffer, "unknown option", 14)) {
		printf (_("CRITICAL - Host type parameter incorrect!\n"));
		result = STATE_CRITICAL;
		return result;
	}

	/* initialize the returned data buffer */
	for (i = 0; i < QSTAT_MAX_RETURN_ARGS; i++)
		ret[i] = strdup("");

	i = 0;
	p = (char *) strtok (input_buffer, QSTAT_DATA_DELIMITER);
	while (p != NULL) {
		ret[i] = p;
		p = (char *) strtok (NULL, QSTAT_DATA_DELIMITER);
		i++;
		if (i >= QSTAT_MAX_RETURN_ARGS)
			break;
	}

	if (strstr (ret[2], QSTAT_HOST_ERROR)) {
		printf (_("CRITICAL - Host not found\n"));
		result = STATE_CRITICAL;
	}
	else if (strstr (ret[2], QSTAT_HOST_DOWN)) {
		printf (_("CRITICAL - Game server down or unavailable\n"));
		result = STATE_CRITICAL;
	}
	else if (strstr (ret[2], QSTAT_HOST_TIMEOUT)) {
		printf (_("CRITICAL - Game server timeout\n"));
		result = STATE_CRITICAL;
	}
	else {
		printf ("OK: %s/%s %s (%s), Ping: %s ms|%s %s\n", 
		        ret[qstat_game_players],
		        ret[qstat_game_players_max],
		        ret[qstat_game_field], 
		        ret[qstat_map_field],
		        ret[qstat_ping_field],
						perfdata ("players", atol(ret[qstat_game_players]), "",
		                  FALSE, 0, FALSE, 0,
		                  TRUE, 0, TRUE, atol(ret[qstat_game_players_max])),
						fperfdata ("ping", strtod(ret[qstat_ping_field], NULL), "",
		                  FALSE, 0, FALSE, 0,
		                  TRUE, 0, FALSE, 0));
	}

	/* close the pipe */
	spclose (fp);

	return result;
}


int
process_arguments (int argc, char **argv)
{
	int c;

	int opt_index = 0;
	static struct option long_opts[] = {
		{"help", no_argument, 0, 'h'},
		{"version", no_argument, 0, 'V'},
		{"verbose", no_argument, 0, 'v'},
		{"timeout", required_argument, 0, 't'},
		{"hostname", required_argument, 0, 'H'},
		{"port", required_argument, 0, 'P'},
		{"game-type", required_argument, 0, 'G'},
		{"map-field", required_argument, 0, 'm'},
		{"ping-field", required_argument, 0, 'p'},
		{"game-field", required_argument, 0, 'g'},
		{"players-field", required_argument, 0, 129},
		{"max-players-field", required_argument, 0, 130},
		{0, 0, 0, 0}
	};

	if (argc < 2)
		return ERROR;

	for (c = 1; c < argc; c++) {
		if (strcmp ("-mf", argv[c]) == 0)
			strcpy (argv[c], "-m");
		else if (strcmp ("-pf", argv[c]) == 0)
			strcpy (argv[c], "-p");
		else if (strcmp ("-gf", argv[c]) == 0)
			strcpy (argv[c], "-g");
	}

	while (1) {
		c = getopt_long (argc, argv, "hVvt:H:P:G:g:p:m:", long_opts, &opt_index);

		if (c == -1 || c == EOF)
			break;

		switch (c) {
		case '?': /* args not parsable */
			usage2 (_("Unknown argument"), optarg);
		case 'h': /* help */
			print_help ();
			exit (STATE_OK);
		case 'V': /* version */
			print_revision (progname, revision);
			exit (STATE_OK);
		case 'v': /* version */
			verbose = TRUE;
			break;
		case 't': /* timeout period */
			timeout_interval = atoi (optarg);
			break;
		case 'H': /* hostname */
			if (strlen (optarg) >= MAX_HOST_ADDRESS_LENGTH)
				die (STATE_UNKNOWN, _("Input buffer overflow\n"));
			server_ip = optarg;
			break;
		case 'P': /* port */
			port = atoi (optarg);
			break;
		case 'G': /* hostname */
			if (strlen (optarg) >= MAX_INPUT_BUFFER)
				die (STATE_UNKNOWN, _("Input buffer overflow\n"));
			game_type = optarg;
			break;
		case 'p': /* index of ping field */
			qstat_ping_field = atoi (optarg);
			if (qstat_ping_field < 0 || qstat_ping_field > QSTAT_MAX_RETURN_ARGS)
				return ERROR;
			break;
		case 'm': /* index on map field */
			qstat_map_field = atoi (optarg);
			if (qstat_map_field < 0 || qstat_map_field > QSTAT_MAX_RETURN_ARGS)
				return ERROR;
			break;
		case 'g': /* index of game field */
			qstat_game_field = atoi (optarg);
			if (qstat_game_field < 0 || qstat_game_field > QSTAT_MAX_RETURN_ARGS)
				return ERROR;
			break;
		case 129: /* index of player count field */
			qstat_game_players = atoi (optarg);
			if (qstat_game_players_max == 0)
				qstat_game_players_max = qstat_game_players - 1;
			if (qstat_game_players < 0 || qstat_game_players > QSTAT_MAX_RETURN_ARGS)
				return ERROR;
			break;
		case 130: /* index of max players field */
			qstat_game_players_max = atoi (optarg);
			if (qstat_game_players_max < 0 || qstat_game_players_max > QSTAT_MAX_RETURN_ARGS)
				return ERROR;
			break;
		}
	}

	c = optind;
	/* first option is the game type */
	if (!game_type && c<argc)
		game_type = strdup (argv[c++]);

	/* Second option is the server name */
	if (!server_ip && c<argc)
		server_ip = strdup (argv[c++]);

	return validate_arguments ();
}


int
validate_arguments (void)
{
	if (qstat_game_players_max < 0)
		qstat_game_players_max = 4;

	if (qstat_game_players < 0)
		qstat_game_players = 5;

	if (qstat_game_field < 0)
		qstat_game_field = 2;

	if (qstat_map_field < 0)
		qstat_map_field = 3;

	if (qstat_ping_field < 0)
		qstat_ping_field = 5;

	return OK;
}


void
print_help (void)
{
	print_revision (progname, revision);

	printf ("Copyright (c) 1999 Ian Cass, Knowledge Matters Limited\n");
	printf (COPYRIGHT, copyright, email);

	printf (_("This plugin tests game server connections with the specified host."));

	print_usage ();

	printf (_(UT_HELP_VRSN));

	printf (_("\
<game>        = Game type that is recognised by qstat (without the leading dash)\n\
<ip_address>  = The IP address of the device you wish to query\n\
 [port]        = Optional port of which to connect\n\
 [game_field]  = Field number in raw qstat output that contains game name\n\
 [map_field]   = Field number in raw qstat output that contains map name\n\
 [ping_field]  = Field number in raw qstat output that contains ping time\n"));

	printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);

	printf (_("\n\
Notes:\n\
- This plugin uses the 'qstat' command, the popular game server status query tool .\n\
  If you don't have the package installed, you will need to download it from\n\
  http://www.activesw.com/people/steve/qstat.html before you can use this plugin.\n"));

	printf (_(UT_SUPPORT));
}



void
print_usage (void)
{
	printf ("\
Usage: %s <game> <ip_address> [-p port] [-gf game_field] [-mf map_field]\n\
                  [-pf ping_field]\n", progname);
}

/******************************************************************************
 *
 * Test Cases:
 *
 * ./check_game --players 7 -p 8 --map 5 qs 67.20.190.61 26000
 * 
 * qstat -raw , -qs 67.20.190.61
 *  ==> QS,67.20.190.61,Nightmare.fintek.ca,67.20.190.61:26000,3,e2m1,6,0,83,0
 *
 * qstat -qs 67.20.190.61
 *  ==> ADDRESS           PLAYERS      MAP   RESPONSE TIME    NAME
 *  ==> 67.20.190.61            0/ 6     e2m1     79 / 0   Nightmare.fintek.ca
 *
 ******************************************************************************/