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/******************************************************************************
*
* CHECK_MYSQL.C
*
* Program: Mysql plugin for Nagios
* License: GPL
* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
* portions (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
*
* $Id$
*
* Description:
*
* This plugin is for testing a mysql server.
******************************************************************************/
const char *progname = "check_mysql";
#define REVISION "$Revision$"
#define COPYRIGHT "1999-2002"
#include "common.h"
#include "utils.h"
#include <mysql/mysql.h>
#include <mysql/errmsg.h>
char *db_user = "";
char *db_host = "";
char *db_pass = "";
char *db = "";
unsigned int db_port = MYSQL_PORT;
int process_arguments (int, char **);
int validate_arguments (void);
void print_help (void);
void print_usage (void);
int
main (int argc, char **argv)
{
MYSQL mysql;
char result[1024];
if (process_arguments (argc, argv) != OK)
usage ("Invalid command arguments supplied\n");
/* initialize mysql */
mysql_init (&mysql);
/* 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_errno (&mysql) == CR_UNKNOWN_HOST) {
printf ("%s\n", mysql_error (&mysql));
return STATE_WARNING;
}
else if (mysql_errno (&mysql) == CR_VERSION_ERROR) {
printf ("%s\n", mysql_error (&mysql));
return STATE_WARNING;
}
else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY) {
printf ("%s\n", mysql_error (&mysql));
return STATE_WARNING;
}
else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR) {
printf ("%s\n", mysql_error (&mysql));
return STATE_WARNING;
}
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;
}
}
/* get the server stats */
sprintf (result, mysql_stat (&mysql));
/* error checking once more */
if (mysql_error (&mysql)) {
if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR) {
printf ("%s\n", mysql_error (&mysql));
return STATE_CRITICAL;
}
else if (mysql_errno (&mysql) == CR_SERVER_LOST) {
printf ("%s\n", mysql_error (&mysql));
return STATE_CRITICAL;
}
else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR) {
printf ("%s\n", mysql_error (&mysql));
return STATE_UNKNOWN;
}
}
/* close the connection */
mysql_close (&mysql);
/* print out the result of stats */
printf ("%s\n", result);
return STATE_OK;
}
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
int c;
#ifdef HAVE_GETOPT_H
int option_index = 0;
static struct option long_options[] = {
{"hostname", required_argument, 0, 'H'},
{"database", required_argument, 0, 'd'},
{"username", required_argument, 0, 'u'},
{"password", required_argument, 0, 'p'},
{"port", required_argument, 0, 'P'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
#endif
if (argc < 1)
return ERROR;
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 (c == -1 || c == EOF)
break;
switch (c) {
case 'H': /* hostname */
if (is_host (optarg)) {
db_host = optarg;
}
else {
usage ("Invalid host name\n");
}
break;
case 'd': /* hostname */
db = optarg;
break;
case 'u': /* username */
db_user = optarg;
break;
case 'p': /* authentication information: password */
db_pass = optarg;
break;
case 'P': /* critical time threshold */
db_port = atoi (optarg);
break;
case 'V': /* version */
print_revision (progname, REVISION);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
case '?': /* help */
usage ("Invalid argument\n");
}
}
c = optind;
if (strlen(db_host) == 0 && argc > c)
if (is_host (argv[c])) {
db_host = argv[c++];
}
else {
usage ("Invalid host name");
}
if (strlen(db_user) == 0 && argc > c)
db_user = argv[c++];
if (strlen(db_pass) == 0 && argc > c)
db_pass = argv[c++];
if (strlen(db) == 0 && argc > c)
db = argv[c++];
if (is_intnonneg (argv[c]) && argc > c)
db_port = atoi (argv[c++]);
return validate_arguments ();
}
int
validate_arguments (void)
{
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 ();
}
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);
}
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