Fixed bug in tools/setup if docbook was run
[monitoring-plugins.git] / plugins / check_mysql.c
bloba9f0f600bc9964d2d81ceba735c6f0a4c09a12f7
1 /*****************************************************************************
2 *
3 * Nagios check_mysql plugin
4 *
5 * License: GPL
6 * Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
7 * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
8 * Copyright (c) 1999-2007 Nagios Plugins Development Team
9 *
10 * Last Modified: $Date$
12 * Description:
14 * This file contains the check_mysql plugin
16 * This program tests connections to a mysql server
19 * This program is free software: you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation, either version 3 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
32 * $Id$
34 *****************************************************************************/
36 const char *progname = "check_mysql";
37 const char *revision = "$Revision$";
38 const char *copyright = "1999-2007";
39 const char *email = "nagiosplug-devel@lists.sourceforge.net";
41 #define SLAVERESULTSIZE 70
43 #include "common.h"
44 #include "utils.h"
45 #include "utils_base.h"
46 #include "netutils.h"
48 #include <mysql.h>
49 #include <errmsg.h>
51 char *db_user = NULL;
52 char *db_host = NULL;
53 char *db_socket = NULL;
54 char *db_pass = NULL;
55 char *db = NULL;
56 unsigned int db_port = MYSQL_PORT;
57 int check_slave = 0, warn_sec = 0, crit_sec = 0;
58 int verbose = 0;
60 thresholds *my_threshold = NULL;
62 int process_arguments (int, char **);
63 int validate_arguments (void);
64 void print_help (void);
65 void print_usage (void);
67 int
68 main (int argc, char **argv)
71 MYSQL mysql;
72 MYSQL_RES *res;
73 MYSQL_ROW row;
75 /* should be status */
77 char *result = NULL;
78 char *error = NULL;
79 char slaveresult[SLAVERESULTSIZE];
81 setlocale (LC_ALL, "");
82 bindtextdomain (PACKAGE, LOCALEDIR);
83 textdomain (PACKAGE);
85 /* Parse extra opts if any */
86 argv=np_extra_opts (&argc, argv, progname);
88 if (process_arguments (argc, argv) == ERROR)
89 usage4 (_("Could not parse arguments"));
91 /* initialize mysql */
92 mysql_init (&mysql);
94 mysql_options(&mysql,MYSQL_READ_DEFAULT_GROUP,"client");
96 /* establish a connection to the server and error checking */
97 if (!mysql_real_connect(&mysql,db_host,db_user,db_pass,db,db_port,db_socket,0)) {
98 if (mysql_errno (&mysql) == CR_UNKNOWN_HOST)
99 die (STATE_WARNING, "%s\n", mysql_error (&mysql));
100 else if (mysql_errno (&mysql) == CR_VERSION_ERROR)
101 die (STATE_WARNING, "%s\n", mysql_error (&mysql));
102 else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY)
103 die (STATE_WARNING, "%s\n", mysql_error (&mysql));
104 else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR)
105 die (STATE_WARNING, "%s\n", mysql_error (&mysql));
106 else if (mysql_errno (&mysql) == CR_SOCKET_CREATE_ERROR)
107 die (STATE_WARNING, "%s\n", mysql_error (&mysql));
108 else
109 die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
112 /* get the server stats */
113 result = strdup (mysql_stat (&mysql));
115 /* error checking once more */
116 if (mysql_error (&mysql)) {
117 if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR)
118 die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
119 else if (mysql_errno (&mysql) == CR_SERVER_LOST)
120 die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
121 else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR)
122 die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
125 if(check_slave) {
126 /* check the slave status */
127 if (mysql_query (&mysql, "show slave status") != 0) {
128 error = strdup(mysql_error(&mysql));
129 mysql_close (&mysql);
130 die (STATE_CRITICAL, _("slave query error: %s\n"), error);
133 /* store the result */
134 if ( (res = mysql_store_result (&mysql)) == NULL) {
135 error = strdup(mysql_error(&mysql));
136 mysql_close (&mysql);
137 die (STATE_CRITICAL, _("slave store_result error: %s\n"), error);
140 /* Check there is some data */
141 if (mysql_num_rows(res) == 0) {
142 mysql_close(&mysql);
143 die (STATE_WARNING, "%s\n", _("No slaves defined"));
146 /* fetch the first row */
147 if ( (row = mysql_fetch_row (res)) == NULL) {
148 error = strdup(mysql_error(&mysql));
149 mysql_free_result (res);
150 mysql_close (&mysql);
151 die (STATE_CRITICAL, _("slave fetch row error: %s\n"), error);
154 if (mysql_field_count (&mysql) == 12) {
155 /* mysql 3.23.x */
156 snprintf (slaveresult, SLAVERESULTSIZE, _("Slave running: %s"), row[6]);
157 if (strcmp (row[6], "Yes") != 0) {
158 mysql_free_result (res);
159 mysql_close (&mysql);
160 die (STATE_CRITICAL, "%s\n", slaveresult);
163 } else {
164 /* mysql 4.x.x */
165 int slave_io_field = -1 , slave_sql_field = -1, seconds_behind_field = -1, i, num_fields;
166 MYSQL_FIELD* fields;
168 num_fields = mysql_num_fields(res);
169 fields = mysql_fetch_fields(res);
170 for(i = 0; i < num_fields; i++) {
171 if (strcmp(fields[i].name, "Slave_IO_Running") == 0) {
172 slave_io_field = i;
173 continue;
175 if (strcmp(fields[i].name, "Slave_SQL_Running") == 0) {
176 slave_sql_field = i;
177 continue;
179 if (strcmp(fields[i].name, "Seconds_Behind_Master") == 0) {
180 seconds_behind_field = i;
181 continue;
184 if ((slave_io_field < 0) || (slave_sql_field < 0) || (num_fields == 0)) {
185 mysql_free_result (res);
186 mysql_close (&mysql);
187 die (STATE_CRITICAL, "Slave status unavailable\n");
190 snprintf (slaveresult, SLAVERESULTSIZE, "Slave IO: %s Slave SQL: %s Seconds Behind Master: %s", row[slave_io_field], row[slave_sql_field], row[seconds_behind_field]);
191 if (strcmp (row[slave_io_field], "Yes") != 0 || strcmp (row[slave_sql_field], "Yes") != 0) {
192 mysql_free_result (res);
193 mysql_close (&mysql);
194 die (STATE_CRITICAL, "%s\n", slaveresult);
197 if (verbose >=3) {
198 if (seconds_behind_field == -1) {
199 printf("seconds_behind_field not found\n");
200 } else {
201 printf ("seconds_behind_field(index %d)=%s\n", seconds_behind_field, row[seconds_behind_field]);
205 if ((seconds_behind_field != -1) && (strcmp (row[seconds_behind_field], "NULL") != 0)) {
206 double value = atof(row[seconds_behind_field]);
207 int status;
209 status = get_status(value, my_threshold);
211 if (status == STATE_WARNING) {
212 printf("SLOW_SLAVE %s: %s\n", _("WARNING"), slaveresult);
213 exit(STATE_WARNING);
214 } else if (status == STATE_CRITICAL) {
215 printf("SLOW_SLAVE %s: %s\n", _("CRITICAL"), slaveresult);
216 exit(STATE_CRITICAL);
221 /* free the result */
222 mysql_free_result (res);
225 /* close the connection */
226 mysql_close (&mysql);
228 /* print out the result of stats */
229 if (check_slave) {
230 printf ("%s %s\n", result, slaveresult);
231 } else {
232 printf ("%s\n", result);
235 return STATE_OK;
239 /* process command-line arguments */
241 process_arguments (int argc, char **argv)
243 int c;
244 char *warning = NULL;
245 char *critical = NULL;
247 int option = 0;
248 static struct option longopts[] = {
249 {"hostname", required_argument, 0, 'H'},
250 {"socket", required_argument, 0, 's'},
251 {"database", required_argument, 0, 'd'},
252 {"username", required_argument, 0, 'u'},
253 {"password", required_argument, 0, 'p'},
254 {"port", required_argument, 0, 'P'},
255 {"critical", required_argument, 0, 'c'},
256 {"warning", required_argument, 0, 'w'},
257 {"check-slave", no_argument, 0, 'S'},
258 {"verbose", no_argument, 0, 'v'},
259 {"version", no_argument, 0, 'V'},
260 {"help", no_argument, 0, 'h'},
261 {0, 0, 0, 0}
264 if (argc < 1)
265 return ERROR;
267 while (1) {
268 c = getopt_long (argc, argv, "hvVSP:p:u:d:H:s:c:w:", longopts, &option);
270 if (c == -1 || c == EOF)
271 break;
273 switch (c) {
274 case 'H': /* hostname */
275 if (is_host (optarg)) {
276 db_host = optarg;
278 else {
279 usage2 (_("Invalid hostname/address"), optarg);
281 break;
282 case 's': /* socket */
283 db_socket = optarg;
284 break;
285 case 'd': /* database */
286 db = optarg;
287 break;
288 case 'u': /* username */
289 db_user = optarg;
290 break;
291 case 'p': /* authentication information: password */
292 db_pass = strdup(optarg);
294 /* Delete the password from process list */
295 while (*optarg != '\0') {
296 *optarg = 'X';
297 optarg++;
299 break;
300 case 'P': /* critical time threshold */
301 db_port = atoi (optarg);
302 break;
303 case 'S':
304 check_slave = 1; /* check-slave */
305 break;
306 case 'w':
307 warning = optarg;
308 break;
309 case 'c':
310 critical = optarg;
311 break;
312 case 'V': /* version */
313 print_revision (progname, revision);
314 exit (STATE_OK);
315 case 'h': /* help */
316 print_help ();
317 exit (STATE_OK);
318 case 'v':
319 verbose++;
320 break;
321 case '?': /* help */
322 usage5 ();
326 c = optind;
328 set_thresholds(&my_threshold, warning, critical);
330 while ( argc > c ) {
332 if (db_host == NULL)
333 if (is_host (argv[c])) {
334 db_host = argv[c++];
336 else {
337 usage2 (_("Invalid hostname/address"), argv[c]);
339 else if (db_user == NULL)
340 db_user = argv[c++];
341 else if (db_pass == NULL)
342 db_pass = argv[c++];
343 else if (db == NULL)
344 db = argv[c++];
345 else if (is_intnonneg (argv[c]))
346 db_port = atoi (argv[c++]);
347 else
348 break;
351 return validate_arguments ();
356 validate_arguments (void)
358 if (db_user == NULL)
359 db_user = strdup("");
361 if (db_host == NULL)
362 db_host = strdup("");
364 if (db_pass == NULL)
365 db_pass == strdup("");
367 if (db == NULL)
368 db = strdup("");
370 return OK;
374 void
375 print_help (void)
377 char *myport;
378 asprintf (&myport, "%d", MYSQL_PORT);
380 print_revision (progname, revision);
382 printf (_(COPYRIGHT), copyright, email);
384 printf ("%s\n", _("This program tests connections to a mysql server"));
386 printf ("\n\n");
388 print_usage ();
390 printf (_(UT_HELP_VRSN));
391 printf (_(UT_EXTRA_OPTS));
393 printf (_(UT_HOST_PORT), 'P', myport);
394 printf (" %s\n", "-s, --socket=STRING");
395 printf (" %s\n", _("Use the specified socket (has no effect if -H is used)"));
397 printf (" %s\n", "-d, --database=STRING");
398 printf (" %s\n", _("Check database with indicated name"));
399 printf (" %s\n", "-u, --username=STRING");
400 printf (" %s\n", _("Connect using the indicated username"));
401 printf (" %s\n", "-p, --password=STRING");
402 printf (" %s\n", _("Use the indicated password to authenticate the connection"));
403 printf (" ==> %s <==\n", _("IMPORTANT: THIS FORM OF AUTHENTICATION IS NOT SECURE!!!"));
404 printf (" %s\n", _("Your clear-text password could be visible as a process table entry"));
405 printf (" %s\n", "-S, --check-slave");
406 printf (" %s\n", _("Check if the slave thread is running properly."));
407 printf (" %s\n", "-w, --warning");
408 printf (" %s\n", _("Exit with WARNING status if slave server is more than INTEGER seconds"));
409 printf (" %s\n", _("behind master"));
410 printf (" %s\n", "-c, --critical");
411 printf (" %s\n", _("Exit with CRITICAL status if slave server is more then INTEGER seconds"));
412 printf (" %s\n", _("behind master"));
414 printf ("\n");
415 printf (" %s\n", _("There are no required arguments. By default, the local database is checked"));
416 printf (" %s\n", _("using the default unix socket. You can force TCP on localhost by using an"));
417 printf (" %s\n", _("IP address or FQDN ('localhost' will use the socket as well)."));
419 #ifdef NP_EXTRA_OPTS
420 printf ("\n");
421 printf ("%s\n", _("Notes:"));
422 printf (_(UT_EXTRA_OPTS_NOTES));
423 #endif
425 printf (_(UT_SUPPORT));
429 void
430 print_usage (void)
432 printf (_("Usage:"));
433 printf (" %s [-d database] [-H host] [-P port] [-s socket]\n",progname);
434 printf (" [-u user] [-p password] [-S]\n");