summaryrefslogtreecommitdiffstats
path: root/plugins/check_overcr.c
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/check_overcr.c')
-rw-r--r--plugins/check_overcr.c417
1 files changed, 0 insertions, 417 deletions
diff --git a/plugins/check_overcr.c b/plugins/check_overcr.c
deleted file mode 100644
index 599540b7..00000000
--- a/plugins/check_overcr.c
+++ /dev/null
@@ -1,417 +0,0 @@
1/*****************************************************************************
2 *
3 * Monitoring check_overcr plugin
4 *
5 * License: GPL
6 * Copyright (c) 2000-2024 Monitoring Plugins Development Team
7 *
8 * Description:
9 *
10 * This file contains the check_overcr plugin
11 *
12 * This plugin attempts to contact the Over-CR collector daemon running on the
13 * remote UNIX server in order to gather the requested system information.
14 *
15 *
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 *
29 *
30 *****************************************************************************/
31
32const char *progname = "check_overcr";
33const char *copyright = "2000-2024";
34const char *email = "devel@monitoring-plugins.org";
35
36#include "common.h"
37#include "netutils.h"
38#include "utils.h"
39
40enum checkvar {
41 NONE,
42 LOAD1,
43 LOAD5,
44 LOAD15,
45 DPU,
46 PROCS,
47 NETSTAT,
48 UPTIME
49};
50
51enum {
52 PORT = 2000
53};
54
55static char *server_address = NULL;
56static int server_port = PORT;
57static double warning_value = 0L;
58static double critical_value = 0L;
59static bool check_warning_value = false;
60static bool check_critical_value = false;
61static enum checkvar vars_to_check = NONE;
62
63static int netstat_port = 0;
64static char *disk_name = NULL;
65static char *process_name = NULL;
66static char send_buffer[MAX_INPUT_BUFFER];
67
68static int process_arguments(int, char **);
69void print_usage(void);
70static void print_help(void);
71
72int main(int argc, char **argv) {
73 int result = STATE_UNKNOWN;
74 char recv_buffer[MAX_INPUT_BUFFER];
75 char temp_buffer[MAX_INPUT_BUFFER];
76 char *temp_ptr = NULL;
77 bool found_disk = false;
78 unsigned long percent_used_disk_space = 100;
79 double load;
80 double load_1min;
81 double load_5min;
82 double load_15min;
83 int port_connections = 0;
84 int processes = 0;
85 double uptime_raw_hours;
86 int uptime_raw_minutes = 0;
87 int uptime_days = 0;
88 int uptime_hours = 0;
89 int uptime_minutes = 0;
90
91 setlocale(LC_ALL, "");
92 bindtextdomain(PACKAGE, LOCALEDIR);
93 textdomain(PACKAGE);
94
95 /* Parse extra opts if any */
96 argv = np_extra_opts(&argc, argv, progname);
97
98 if (process_arguments(argc, argv) == ERROR)
99 usage4(_("Could not parse arguments"));
100
101 /* initialize alarm signal handling */
102 signal(SIGALRM, socket_timeout_alarm_handler);
103
104 /* set socket timeout */
105 alarm(socket_timeout);
106
107 result = process_tcp_request2(server_address, server_port, send_buffer, recv_buffer, sizeof(recv_buffer));
108
109 switch (vars_to_check) {
110
111 case LOAD1:
112 case LOAD5:
113 case LOAD15:
114
115 if (result != STATE_OK)
116 die(result, _("Unknown error fetching load data\n"));
117
118 temp_ptr = (char *)strtok(recv_buffer, "\r\n");
119 if (temp_ptr == NULL)
120 die(STATE_CRITICAL, _("Invalid response from server - no load information\n"));
121 else
122 load_1min = strtod(temp_ptr, NULL);
123
124 temp_ptr = (char *)strtok(NULL, "\r\n");
125 if (temp_ptr == NULL)
126 die(STATE_CRITICAL, _("Invalid response from server after load 1\n"));
127 else
128 load_5min = strtod(temp_ptr, NULL);
129
130 temp_ptr = (char *)strtok(NULL, "\r\n");
131 if (temp_ptr == NULL)
132 die(STATE_CRITICAL, _("Invalid response from server after load 5\n"));
133 else
134 load_15min = strtod(temp_ptr, NULL);
135
136 switch (vars_to_check) {
137 case LOAD1:
138 strcpy(temp_buffer, "1");
139 load = load_1min;
140 break;
141 case LOAD5:
142 strcpy(temp_buffer, "5");
143 load = load_5min;
144 break;
145 default:
146 strcpy(temp_buffer, "15");
147 load = load_15min;
148 break;
149 }
150
151 if (check_critical_value && (load >= critical_value))
152 result = STATE_CRITICAL;
153 else if (check_warning_value && (load >= warning_value))
154 result = STATE_WARNING;
155
156 die(result, _("Load %s - %s-min load average = %0.2f"), state_text(result), temp_buffer, load);
157
158 break;
159
160 case DPU:
161
162 if (result != STATE_OK)
163 die(result, _("Unknown error fetching disk data\n"));
164
165 for (temp_ptr = (char *)strtok(recv_buffer, " "); temp_ptr != NULL; temp_ptr = (char *)strtok(NULL, " ")) {
166
167 if (!strcmp(temp_ptr, disk_name)) {
168 found_disk = true;
169 temp_ptr = (char *)strtok(NULL, "%");
170 if (temp_ptr == NULL)
171 die(STATE_CRITICAL, _("Invalid response from server\n"));
172 else
173 percent_used_disk_space = strtoul(temp_ptr, NULL, 10);
174 break;
175 }
176
177 temp_ptr = (char *)strtok(NULL, "\r\n");
178 }
179
180 /* error if we couldn't find the info for the disk */
181 if (!found_disk)
182 die(STATE_CRITICAL, "CRITICAL - Disk '%s' non-existent or not mounted", disk_name);
183
184 if (check_critical_value && (percent_used_disk_space >= critical_value))
185 result = STATE_CRITICAL;
186 else if (check_warning_value && (percent_used_disk_space >= warning_value))
187 result = STATE_WARNING;
188
189 die(result, "Disk %s - %lu%% used on %s", state_text(result), percent_used_disk_space, disk_name);
190
191 break;
192
193 case NETSTAT:
194
195 if (result != STATE_OK)
196 die(result, _("Unknown error fetching network status\n"));
197 else
198 port_connections = strtod(recv_buffer, NULL);
199
200 if (check_critical_value && (port_connections >= critical_value))
201 result = STATE_CRITICAL;
202 else if (check_warning_value && (port_connections >= warning_value))
203 result = STATE_WARNING;
204
205 die(result, _("Net %s - %d connection%s on port %d"), state_text(result), port_connections, (port_connections == 1) ? "" : "s",
206 netstat_port);
207
208 break;
209
210 case PROCS:
211
212 if (result != STATE_OK)
213 die(result, _("Unknown error fetching process status\n"));
214
215 temp_ptr = (char *)strtok(recv_buffer, "(");
216 if (temp_ptr == NULL)
217 die(STATE_CRITICAL, _("Invalid response from server\n"));
218
219 temp_ptr = (char *)strtok(NULL, ")");
220 if (temp_ptr == NULL)
221 die(STATE_CRITICAL, _("Invalid response from server\n"));
222 else
223 processes = strtod(temp_ptr, NULL);
224
225 if (check_critical_value && (processes >= critical_value))
226 result = STATE_CRITICAL;
227 else if (check_warning_value && (processes >= warning_value))
228 result = STATE_WARNING;
229
230 die(result, _("Process %s - %d instance%s of %s running"), state_text(result), processes, (processes == 1) ? "" : "s",
231 process_name);
232 break;
233
234 case UPTIME:
235
236 if (result != STATE_OK)
237 return result;
238
239 uptime_raw_hours = strtod(recv_buffer, NULL);
240 uptime_raw_minutes = (unsigned long)(uptime_raw_hours * 60.0);
241
242 if (check_critical_value && (uptime_raw_minutes <= critical_value))
243 result = STATE_CRITICAL;
244 else if (check_warning_value && (uptime_raw_minutes <= warning_value))
245 result = STATE_WARNING;
246
247 uptime_days = uptime_raw_minutes / 1440;
248 uptime_raw_minutes %= 1440;
249 uptime_hours = uptime_raw_minutes / 60;
250 uptime_raw_minutes %= 60;
251 uptime_minutes = uptime_raw_minutes;
252
253 die(result, _("Uptime %s - Up %d days %d hours %d minutes"), state_text(result), uptime_days, uptime_hours, uptime_minutes);
254 break;
255
256 default:
257 die(STATE_UNKNOWN, _("Nothing to check!\n"));
258 break;
259 }
260}
261
262/* process command-line arguments */
263int process_arguments(int argc, char **argv) {
264 int c;
265
266 int option = 0;
267 static struct option longopts[] = {
268 {"port", required_argument, 0, 'p'}, {"timeout", required_argument, 0, 't'}, {"critical", required_argument, 0, 'c'},
269 {"warning", required_argument, 0, 'w'}, {"variable", required_argument, 0, 'v'}, {"hostname", required_argument, 0, 'H'},
270 {"version", no_argument, 0, 'V'}, {"help", no_argument, 0, 'h'}, {0, 0, 0, 0}};
271
272 /* no options were supplied */
273 if (argc < 2)
274 return ERROR;
275
276 /* backwards compatibility */
277 if (!is_option(argv[1])) {
278 server_address = argv[1];
279 argv[1] = argv[0];
280 argv = &argv[1];
281 argc--;
282 }
283
284 for (c = 1; c < argc; c++) {
285 if (strcmp("-to", argv[c]) == 0)
286 strcpy(argv[c], "-t");
287 else if (strcmp("-wv", argv[c]) == 0)
288 strcpy(argv[c], "-w");
289 else if (strcmp("-cv", argv[c]) == 0)
290 strcpy(argv[c], "-c");
291 }
292
293 while (1) {
294 c = getopt_long(argc, argv, "+hVH:t:c:w:p:v:", longopts, &option);
295
296 if (c == -1 || c == EOF || c == 1)
297 break;
298
299 switch (c) {
300 case '?': /* print short usage statement if args not parsable */
301 usage5();
302 case 'h': /* help */
303 print_help();
304 exit(STATE_UNKNOWN);
305 case 'V': /* version */
306 print_revision(progname, NP_VERSION);
307 exit(STATE_UNKNOWN);
308 case 'H': /* hostname */
309 server_address = optarg;
310 break;
311 case 'p': /* port */
312 if (is_intnonneg(optarg))
313 server_port = atoi(optarg);
314 else
315 die(STATE_UNKNOWN, _("Server port an integer\n"));
316 break;
317 case 'v': /* variable */
318 if (strcmp(optarg, "LOAD") == 0) {
319 strcpy(send_buffer, "LOAD\r\nQUIT\r\n");
320 if (strcmp(optarg, "LOAD1") == 0)
321 vars_to_check = LOAD1;
322 else if (strcmp(optarg, "LOAD5") == 0)
323 vars_to_check = LOAD5;
324 else if (strcmp(optarg, "LOAD15") == 0)
325 vars_to_check = LOAD15;
326 } else if (strcmp(optarg, "UPTIME") == 0) {
327 vars_to_check = UPTIME;
328 strcpy(send_buffer, "UPTIME\r\n");
329 } else if (strstr(optarg, "PROC") == optarg) {
330 vars_to_check = PROCS;
331 process_name = strscpy(process_name, optarg + 4);
332 sprintf(send_buffer, "PROCESS %s\r\n", process_name);
333 } else if (strstr(optarg, "NET") == optarg) {
334 vars_to_check = NETSTAT;
335 netstat_port = atoi(optarg + 3);
336 sprintf(send_buffer, "NETSTAT %d\r\n", netstat_port);
337 } else if (strstr(optarg, "DPU") == optarg) {
338 vars_to_check = DPU;
339 strcpy(send_buffer, "DISKSPACE\r\n");
340 disk_name = strscpy(disk_name, optarg + 3);
341 } else
342 return ERROR;
343 break;
344 case 'w': /* warning threshold */
345 warning_value = strtoul(optarg, NULL, 10);
346 check_warning_value = true;
347 break;
348 case 'c': /* critical threshold */
349 critical_value = strtoul(optarg, NULL, 10);
350 check_critical_value = true;
351 break;
352 case 't': /* timeout */
353 socket_timeout = atoi(optarg);
354 if (socket_timeout <= 0)
355 return ERROR;
356 }
357 }
358 return OK;
359}
360
361void print_help(void) {
362 char *myport;
363 xasprintf(&myport, "%d", PORT);
364
365 print_revision(progname, NP_VERSION);
366
367 printf("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
368 printf(COPYRIGHT, copyright, email);
369
370 printf("%s\n", _("This plugin attempts to contact the Over-CR collector daemon running on the"));
371 printf("%s\n", _("remote UNIX server in order to gather the requested system information."));
372
373 printf("\n\n");
374
375 print_usage();
376
377 printf(UT_HELP_VRSN);
378 printf(UT_EXTRA_OPTS);
379
380 printf(UT_HOST_PORT, 'p', myport);
381
382 printf(" %s\n", "-w, --warning=INTEGER");
383 printf(" %s\n", _("Threshold which will result in a warning status"));
384 printf(" %s\n", "-c, --critical=INTEGER");
385 printf(" %s\n", _("Threshold which will result in a critical status"));
386 printf(" %s\n", "-v, --variable=STRING");
387 printf(" %s\n", _("Variable to check. Valid variables include:"));
388 printf(" %s\n", _("LOAD1 = 1 minute average CPU load"));
389 printf(" %s\n", _("LOAD5 = 5 minute average CPU load"));
390 printf(" %s\n", _("LOAD15 = 15 minute average CPU load"));
391 printf(" %s\n", _("DPU<filesys> = percent used disk space on filesystem <filesys>"));
392 printf(" %s\n", _("PROC<process> = number of running processes with name <process>"));
393 printf(" %s\n", _("NET<port> = number of active connections on TCP port <port>"));
394 printf(" %s\n", _("UPTIME = system uptime in seconds"));
395
396 printf(UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
397
398 printf(UT_VERBOSE);
399
400 printf("\n");
401 printf("%s\n", _("This plugin requires that Eric Molitors' Over-CR collector daemon be"));
402 printf("%s\n", _("running on the remote server."));
403 printf("%s\n", _("Over-CR can be downloaded from http://www.molitor.org/overcr"));
404 printf("%s\n", _("This plugin was tested with version 0.99.53 of the Over-CR collector"));
405
406 printf("\n");
407 printf("%s\n", _("Notes:"));
408 printf(" %s\n", _("For the available options, the critical threshold value should always be"));
409 printf(" %s\n", _("higher than the warning threshold value, EXCEPT with the uptime variable"));
410
411 printf(UT_SUPPORT);
412}
413
414void print_usage(void) {
415 printf("%s\n", _("Usage:"));
416 printf("%s -H host [-p port] [-v variable] [-w warning] [-c critical] [-t timeout]\n", progname);
417}