X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_mysql.c;h=d9b4e537230a281f85d9d265ca1b032129238665;hb=654086f1117ee22d9f7e8270330daff6c463c9ad;hp=50836f91109f4ec9f0b51be0e81eb04ac3ec89ef;hpb=44a321cb8a42d6c0ea2d96a1086a17f2134c89cc;p=nagiosplug.git

diff --git a/plugins/check_mysql.c b/plugins/check_mysql.c
index 50836f9..d9b4e53 100644
--- a/plugins/check_mysql.c
+++ b/plugins/check_mysql.c
@@ -1,37 +1,62 @@
-/******************************************************************************
-*
-* CHECK_MYSQL.C
-*
-* Program: Mysql plugin for Nagios
+/*****************************************************************************
+* 
+* Nagios check_mysql plugin
+* 
 * License: GPL
 * Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
-*  portions (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+* Copyright (c) 1999-2009 Nagios Plugins Development Team
 * 
-* $Id$
-*
 * Description:
-*
-* This plugin is for testing a mysql server.
-******************************************************************************/
+* 
+* This file contains the check_mysql plugin
+* 
+* This program tests connections to a mysql server
+* 
+* 
+* 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 3 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, see <http://www.gnu.org/licenses/>.
+* 
+* 
+*****************************************************************************/
 
-#define PROGNAME "check_mysql"
+const char *progname = "check_mysql";
+const char *copyright = "1999-2007";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
+#define SLAVERESULTSIZE 70
 
 #include "common.h"
 #include "utils.h"
+#include "utils_base.h"
+#include "netutils.h"
 
-#include <mysql/mysql.h>
-#include <mysql/errmsg.h>
+#include <mysql.h>
+#include <errmsg.h>
 
 char *db_user = NULL;
 char *db_host = NULL;
+char *db_socket = NULL;
 char *db_pass = NULL;
 char *db = NULL;
 unsigned int db_port = MYSQL_PORT;
+int check_slave = 0, warn_sec = 0, crit_sec = 0;
+int verbose = 0;
+
+thresholds *my_threshold = NULL;
 
 int process_arguments (int, char **);
-int call_getopt (int, char **);
 int validate_arguments (void);
-int check_disk (int usp, int free_disk);
 void print_help (void);
 void print_usage (void);
 
@@ -40,258 +65,364 @@ main (int argc, char **argv)
 {
 
 	MYSQL mysql;
-	char result[1024];
+	MYSQL_RES *res;
+	MYSQL_ROW row;
+
+	/* should be status */
+
+	char *result = NULL;
+	char *error = NULL;
+	char slaveresult[SLAVERESULTSIZE];
+
+	setlocale (LC_ALL, "");
+	bindtextdomain (PACKAGE, LOCALEDIR);
+	textdomain (PACKAGE);
 
-	if (process_arguments (argc, argv) != OK)
-		usage ("Invalid command arguments supplied\n");
+	/* Parse extra opts if any */
+	argv=np_extra_opts (&argc, argv, progname);
+
+	if (process_arguments (argc, argv) == ERROR)
+		usage4 (_("Could not parse arguments"));
 
 	/* initialize mysql  */
 	mysql_init (&mysql);
 
+	mysql_options(&mysql,MYSQL_READ_DEFAULT_GROUP,"client");
+
 	/* establish a connection to the server and error checking */
-	if (!mysql_real_connect
-			(&mysql, db_host, db_user, db_pass, db, db_port, NULL, 0)) {
+	if (!mysql_real_connect(&mysql,db_host,db_user,db_pass,db,db_port,db_socket,0)) {
+		if (mysql_errno (&mysql) == CR_UNKNOWN_HOST)
+			die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_VERSION_ERROR)
+			die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY)
+			die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR)
+			die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_SOCKET_CREATE_ERROR)
+			die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+		else
+			die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+	}
 
-		if (mysql_errno (&mysql) == CR_UNKNOWN_HOST) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_WARNING;
+	/* get the server stats */
+	result = strdup (mysql_stat (&mysql));
 
-		}
-		else if (mysql_errno (&mysql) == CR_VERSION_ERROR) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_WARNING;
+	/* error checking once more */
+	if (mysql_error (&mysql)) {
+		if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR)
+			die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_SERVER_LOST)
+			die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+		else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR)
+			die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+	}
 
+	if(check_slave) {
+		/* check the slave status */
+		if (mysql_query (&mysql, "show slave status") != 0) {
+			error = strdup(mysql_error(&mysql));
+			mysql_close (&mysql);
+			die (STATE_CRITICAL, _("slave query error: %s\n"), error);
 		}
-		else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_WARNING;
 
+		/* store the result */
+		if ( (res = mysql_store_result (&mysql)) == NULL) {
+			error = strdup(mysql_error(&mysql));
+			mysql_close (&mysql);
+			die (STATE_CRITICAL, _("slave store_result error: %s\n"), error);
 		}
-		else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_WARNING;
 
+		/* Check there is some data */
+		if (mysql_num_rows(res) == 0) {
+			mysql_close(&mysql);
+			die (STATE_WARNING, "%s\n", _("No slaves defined"));
 		}
-		else if (mysql_errno (&mysql) == CR_SOCKET_CREATE_ERROR) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_WARNING;
 
-		}
-		else {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_CRITICAL;
+		/* fetch the first row */
+		if ( (row = mysql_fetch_row (res)) == NULL) {
+			error = strdup(mysql_error(&mysql));
+			mysql_free_result (res);
+			mysql_close (&mysql);
+			die (STATE_CRITICAL, _("slave fetch row error: %s\n"), error);
 		}
 
-	}
+		if (mysql_field_count (&mysql) == 12) {
+			/* mysql 3.23.x */
+			snprintf (slaveresult, SLAVERESULTSIZE, _("Slave running: %s"), row[6]);
+			if (strcmp (row[6], "Yes") != 0) {
+				mysql_free_result (res);
+				mysql_close (&mysql);
+				die (STATE_CRITICAL, "%s\n", slaveresult);
+			}
 
-	/* get the server stats */
-	sprintf (result, mysql_stat (&mysql));
+		} else {
+			/* mysql 4.x.x */
+			int slave_io_field = -1 , slave_sql_field = -1, seconds_behind_field = -1, i, num_fields;
+			MYSQL_FIELD* fields;
+
+			num_fields = mysql_num_fields(res);
+			fields = mysql_fetch_fields(res);
+			for(i = 0; i < num_fields; i++) {
+				if (strcmp(fields[i].name, "Slave_IO_Running") == 0) {
+					slave_io_field = i;
+					continue;
+				}
+				if (strcmp(fields[i].name, "Slave_SQL_Running") == 0) {
+					slave_sql_field = i;
+					continue;
+				}
+				if (strcmp(fields[i].name, "Seconds_Behind_Master") == 0) {
+					seconds_behind_field = i;
+					continue;
+				}
+			}
 
-	/* error checking once more */
-	if (mysql_error (&mysql)) {
+			if ((slave_io_field < 0) || (slave_sql_field < 0) || (num_fields == 0)) {
+				mysql_free_result (res);
+				mysql_close (&mysql);
+				die (STATE_CRITICAL, "Slave status unavailable\n");
+			}
 
-		if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_CRITICAL;
+			snprintf (slaveresult, SLAVERESULTSIZE, "Slave IO: %s Slave SQL: %s Seconds Behind Master: %s", row[slave_io_field], row[slave_sql_field], seconds_behind_field!=-1?row[seconds_behind_field]:"Unknown");
+			if (strcmp (row[slave_io_field], "Yes") != 0 || strcmp (row[slave_sql_field], "Yes") != 0) {
+				mysql_free_result (res);
+				mysql_close (&mysql);
+				die (STATE_CRITICAL, "%s\n", slaveresult);
+			}
 
-		}
-		else if (mysql_errno (&mysql) == CR_SERVER_LOST) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_CRITICAL;
+			if (verbose >=3) {
+				if (seconds_behind_field == -1) {
+					printf("seconds_behind_field not found\n");
+				} else {
+					printf ("seconds_behind_field(index %d)=%s\n", seconds_behind_field, row[seconds_behind_field]);
+				}
+			}
 
-		}
-		else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR) {
-			printf ("%s\n", mysql_error (&mysql));
-			return STATE_UNKNOWN;
+			if ((seconds_behind_field != -1) && (strcmp (row[seconds_behind_field], "NULL") != 0)) {
+				double value = atof(row[seconds_behind_field]);
+				int status;
+
+				status = get_status(value, my_threshold);
+
+				if (status == STATE_WARNING) {
+					printf("SLOW_SLAVE %s: %s\n", _("WARNING"), slaveresult);
+					exit(STATE_WARNING);
+				} else if (status == STATE_CRITICAL) {
+					printf("SLOW_SLAVE %s: %s\n", _("CRITICAL"), slaveresult);
+					exit(STATE_CRITICAL);
+				}
+			}
 		}
 
+		/* free the result */
+		mysql_free_result (res);
 	}
 
 	/* close the connection */
 	mysql_close (&mysql);
 
 	/* print out the result of stats */
-	printf ("%s\n", result);
+	if (check_slave) {
+		printf ("%s %s\n", result, slaveresult);
+	} else {
+		printf ("%s\n", result);
+	}
 
 	return STATE_OK;
 }
 
 
-
-
-
 /* process command-line arguments */
 int
 process_arguments (int argc, char **argv)
 {
 	int c;
+	char *warning = NULL;
+	char *critical = NULL;
 
-	if (argc < 1)
-		return ERROR;
-
-	c = 0;
-	while ((c += (call_getopt (argc - c, &argv[c]))) < argc) {
-
-		if (is_option (argv[c]))
-			continue;
-
-		if (db_host == NULL)
-			if (is_host (argv[c])) {
-				db_host = argv[c];
-			}
-			else {
-				usage ("Invalid host name");
-			}
-		else if (db_user == NULL)
-			db_user = argv[c];
-		else if (db_pass == NULL)
-			db_pass = argv[c];
-		else if (db == NULL)
-			db = argv[c];
-		else if (is_intnonneg (argv[c]))
-			db_port = atoi (argv[c]);
-	}
-
-	if (db_host == NULL)
-		db_host = strscpy (db_host, "127.0.0.1");
-
-	return validate_arguments ();
-}
-
-
-
-
-
-
-int
-call_getopt (int argc, char **argv)
-{
-	int c, i = 0;
-
-#ifdef HAVE_GETOPT_H
-	int option_index = 0;
-	static struct option long_options[] = {
+	int option = 0;
+	static struct option longopts[] = {
 		{"hostname", required_argument, 0, 'H'},
+		{"socket", required_argument, 0, 's'},
 		{"database", required_argument, 0, 'd'},
 		{"username", required_argument, 0, 'u'},
 		{"password", required_argument, 0, 'p'},
 		{"port", required_argument, 0, 'P'},
+		{"critical", required_argument, 0, 'c'},
+		{"warning", required_argument, 0, 'w'},
+		{"check-slave", no_argument, 0, 'S'},
 		{"verbose", no_argument, 0, 'v'},
 		{"version", no_argument, 0, 'V'},
 		{"help", no_argument, 0, 'h'},
 		{0, 0, 0, 0}
 	};
-#endif
 
-	while (1) {
-#ifdef HAVE_GETOPT_H
-		c =
-			getopt_long (argc, argv, "+hVP:p:u:d:H:", long_options, &option_index);
-#else
-		c = getopt (argc, argv, "+?hVP:p:u:d:H:");
-#endif
+	if (argc < 1)
+		return ERROR;
 
-		i++;
+	while (1) {
+		c = getopt_long (argc, argv, "hvVSP:p:u:d:H:s:c:w:", longopts, &option);
 
-		if (c == -1 || c == EOF || c == 1)
+		if (c == -1 || c == EOF)
 			break;
 
-		switch (c) {
-		case 'P':
-		case 'p':
-		case 'u':
-		case 'd':
-		case 'H':
-			i++;
-		}
-
 		switch (c) {
 		case 'H':									/* hostname */
 			if (is_host (optarg)) {
 				db_host = optarg;
 			}
 			else {
-				usage ("Invalid host name\n");
+				usage2 (_("Invalid hostname/address"), optarg);
 			}
 			break;
-		case 'd':									/* hostname */
+		case 's':									/* socket */
+			db_socket = optarg;
+			break;
+		case 'd':									/* database */
 			db = optarg;
 			break;
 		case 'u':									/* username */
 			db_user = optarg;
 			break;
 		case 'p':									/* authentication information: password */
-			db_pass = optarg;
+			db_pass = strdup(optarg);
+
+			/* Delete the password from process list */
+			while (*optarg != '\0') {
+				*optarg = 'X';
+				optarg++;
+			}
 			break;
 		case 'P':									/* critical time threshold */
 			db_port = atoi (optarg);
 			break;
+		case 'S':
+			check_slave = 1;							/* check-slave */
+			break;
+		case 'w':
+			warning = optarg;
+			break;
+		case 'c':
+			critical = optarg;
+			break;
 		case 'V':									/* version */
-			print_revision (my_basename (argv[0]), "$Revision$");
+			print_revision (progname, NP_VERSION);
 			exit (STATE_OK);
 		case 'h':									/* help */
 			print_help ();
 			exit (STATE_OK);
+		case 'v':
+			verbose++;
+			break;
 		case '?':									/* help */
-			usage ("Invalid argument\n");
+			usage5 ();
 		}
 	}
-	return i;
-}
 
+	c = optind;
+
+	set_thresholds(&my_threshold, warning, critical);
 
+	while ( argc > c ) {
+
+		if (db_host == NULL)
+			if (is_host (argv[c])) {
+				db_host = argv[c++];
+			}
+			else {
+				usage2 (_("Invalid hostname/address"), argv[c]);
+			}
+		else if (db_user == NULL)
+			db_user = argv[c++];
+		else if (db_pass == NULL)
+			db_pass = argv[c++];
+		else if (db == NULL)
+			db = argv[c++];
+		else if (is_intnonneg (argv[c]))
+			db_port = atoi (argv[c++]);
+		else
+			break;
+	}
 
+	return validate_arguments ();
+}
 
 
 int
 validate_arguments (void)
 {
-	return OK;
-}
+	if (db_user == NULL)
+		db_user = strdup("");
 
+	if (db_host == NULL)
+		db_host = strdup("");
 
+	if (db == NULL)
+		db = strdup("");
 
+	return OK;
+}
 
 
 void
 print_help (void)
 {
-	print_revision (PROGNAME, "$Revision$");
-	printf
-		("Copyright (c) 2000 Didi Rieder/Karl DeBisschop\n\n"
-		 "This plugin is for testing a mysql server.\n");
-	print_usage ();
-	printf
-		("\nThere are no required arguments. By default, the local database with\n"
-		 "a server listening on MySQL standard port %d will be checked\n\n"
-		 "Options:\n"
-		 " -d, --database=STRING\n"
-		 "   Check database with indicated name\n"
-		 " -H, --hostname=STRING or IPADDRESS\n"
-		 "   Check server on the indicated host\n"
-		 " -P, --port=INTEGER\n"
-		 "   Make connection on the indicated port\n"
-		 " -u, --username=STRING\n"
-		 "   Connect using the indicated username\n"
-		 " -p, --password=STRING\n"
-		 "   Use the indicated password to authenticate the connection\n"
-		 "   ==> IMPORTANT: THIS FORM OF AUTHENTICATION IS NOT SECURE!!! <==\n"
-		 "   Your clear-text password will be visible as a process table entry\n"
-		 " -h, --help\n"
-		 "    Print detailed help screen\n"
-		 " -V, --version\n" "    Print version information\n\n", MYSQL_PORT);
-	support ();
-}
+	char *myport;
+	asprintf (&myport, "%d", MYSQL_PORT);
+
+	print_revision (progname, NP_VERSION);
+
+	printf (_(COPYRIGHT), copyright, email);
 
+	printf ("%s\n", _("This program tests connections to a MySQL server"));
 
+  printf ("\n\n");
 
+	print_usage ();
+
+  printf (UT_HELP_VRSN);
+	printf (UT_EXTRA_OPTS);
+
+  printf (UT_HOST_PORT, 'P', myport);
+  printf (" %s\n", "-s, --socket=STRING");
+  printf ("    %s\n", _("Use the specified socket (has no effect if -H is used)"));
+
+  printf (" %s\n", "-d, --database=STRING");
+  printf ("    %s\n", _("Check database with indicated name"));
+  printf (" %s\n", "-u, --username=STRING");
+  printf ("    %s\n", _("Connect using the indicated username"));
+  printf (" %s\n", "-p, --password=STRING");
+  printf ("    %s\n", _("Use the indicated password to authenticate the connection"));
+  printf ("    ==> %s <==\n", _("IMPORTANT: THIS FORM OF AUTHENTICATION IS NOT SECURE!!!"));
+  printf ("    %s\n", _("Your clear-text password could be visible as a process table entry"));
+  printf (" %s\n", "-S, --check-slave");
+  printf ("    %s\n", _("Check if the slave thread is running properly."));
+  printf (" %s\n", "-w, --warning");
+  printf ("    %s\n", _("Exit with WARNING status if slave server is more than INTEGER seconds"));
+  printf ("    %s\n", _("behind master"));
+  printf (" %s\n", "-c, --critical");
+  printf ("    %s\n", _("Exit with CRITICAL status if slave server is more then INTEGER seconds"));
+  printf ("    %s\n", _("behind master"));
+
+  printf ("\n");
+  printf (" %s\n", _("There are no required arguments. By default, the local database is checked"));
+  printf (" %s\n", _("using the default unix socket. You can force TCP on localhost by using an"));
+  printf (" %s\n", _("IP address or FQDN ('localhost' will use the socket as well)."));
+
+	printf ("\n");
+	printf ("%s\n", _("Notes:"));
+	printf (" %s\n", _("You must specify -p with an empty string to force an empty password,"));
+	printf (" %s\n", _("overriding any my.cnf settings."));
+
+	printf (UT_SUPPORT);
+}
 
 
 void
 print_usage (void)
 {
-	printf
-		("Usage: %s [-d database] [-H host] [-P port] [-u user] [-p password]\n"
-		 "       %s --help\n"
-		 "       %s --version\n", PROGNAME, PROGNAME, PROGNAME);
+	printf ("%s\n", _("Usage:"));
+  printf (" %s [-d database] [-H host] [-P port] [-s socket]\n",progname);
+  printf ("       [-u user] [-p password] [-S]\n");
 }