示例#1
0
文件: nagios.c 项目: formorer/nagios
int main(int argc, char **argv, char **env) {
    int result;
    int error = FALSE;
    char *buffer = NULL;
    int display_license = FALSE;
    int display_help = FALSE;
    int c = 0;
    struct tm *tm, tm_s;
    time_t now;
    char datestring[256];
    nagios_macros *mac;

#ifdef HAVE_GETOPT_H
    int option_index = 0;
    static struct option long_options[] = {
        {"help", no_argument, 0, 'h'},
        {"version", no_argument, 0, 'V'},
        {"license", no_argument, 0, 'V'},
        {"verify-config", no_argument, 0, 'v'},
        {"daemon", no_argument, 0, 'd'},
        {"test-scheduling", no_argument, 0, 's'},
        {"precache-objects", no_argument, 0, 'p'},
        {"use-precached-objects", no_argument, 0, 'u'},
        {"enable-timing-point", no_argument, 0, 'T'},
        {0, 0, 0, 0}
    };
#define getopt(argc, argv, o) getopt_long(argc, argv, o, long_options, &option_index)
#endif

    mac = get_global_macros();

    /* make sure we have the correct number of command line arguments */
    if(argc < 2)
        error = TRUE;

    /* get all command line arguments */
    while(1) {
        c = getopt(argc, argv, "+hVvdspuxT");

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

        switch(c) {

        case '?': /* usage */
        case 'h':
            display_help = TRUE;
            break;

        case 'V': /* version */
            display_license = TRUE;
            break;

        case 'v': /* verify */
            verify_config++;
            break;

        case 's': /* scheduling check */
            test_scheduling = TRUE;
            break;

        case 'd': /* daemon mode */
            daemon_mode = TRUE;
            break;

        case 'p': /* precache object config */
            precache_objects = TRUE;
            break;

        case 'u': /* use precached object config */
            use_precached_objects = TRUE;
            break;
        case 'T':
            enable_timing_point = TRUE;
            break;

        case 'x':
            printf("Warning: -x is deprecated and will be removed\n");
            break;

        default:
            break;
        }

    }

#ifdef DEBUG_MEMORY
    mtrace();
#endif

    if(daemon_mode == FALSE) {
        printf("\nNagios Core %s\n", PROGRAM_VERSION);
        printf("Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors\n");
        printf("Copyright (c) 1999-2009 Ethan Galstad\n");
        printf("Last Modified: %s\n", PROGRAM_MODIFICATION_DATE);
        printf("License: GPL\n\n");
        printf("Website: http://www.nagios.org\n");
    }

    /* just display the license */
    if(display_license == TRUE) {

        printf("This program is free software; you can redistribute it and/or modify\n");
        printf("it under the terms of the GNU General Public License version 2 as\n");
        printf("published by the Free Software Foundation.\n\n");
        printf("This program is distributed in the hope that it will be useful,\n");
        printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
        printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
        printf("GNU General Public License for more details.\n\n");
        printf("You should have received a copy of the GNU General Public License\n");
        printf("along with this program; if not, write to the Free Software\n");
        printf("Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n\n");

        exit(OK);
    }

    /* make sure we got the main config file on the command line... */
    if(optind >= argc)
        error = TRUE;

    /* if there are no command line options (or if we encountered an error), print usage */
    if(error == TRUE || display_help == TRUE) {

        printf("Usage: %s [options] <main_config_file>\n", argv[0]);
        printf("\n");
        printf("Options:\n");
        printf("\n");
        printf("  -v, --verify-config          Verify all configuration data (-v -v for more info)\n");
        printf("  -s, --test-scheduling        Shows projected/recommended check scheduling and other\n");
        printf("                               diagnostic info based on the current configuration files.\n");
        printf("  -T, --enable-timing-point    Enable timed commentary on initialization\n");
        /*printf("  -o, --dont-verify-objects    Don't verify object relationships - USE WITH CAUTION!\n");*/
        printf("  -x, --dont-verify-paths      Don't check for circular object paths - USE WITH CAUTION!\n");
        printf("  -p, --precache-objects       Precache object configuration\n");
        printf("  -u, --use-precached-objects  Use precached object config file\n");
        printf("  -d, --daemon                 Starts Nagios in daemon mode, instead of as a foreground process\n");
        printf("\n");
        printf("Visit the Nagios website at http://www.nagios.org/ for bug fixes, new\n");
        printf("releases, online documentation, FAQs, information on subscribing to\n");
        printf("the mailing lists, and commercial support options for Nagios.\n");
        printf("\n");

        exit(ERROR);
    }


    /* config file is last argument specified */
    config_file = (char *)strdup(argv[optind]);
    if(config_file == NULL) {
        printf("Error allocating memory.\n");
        exit(ERROR);
    }

    /* make sure the config file uses an absolute path */
    if(config_file[0] != '/') {

        /* save the name of the config file */
        buffer = (char *)strdup(config_file);

        /* reallocate a larger chunk of memory */
        config_file = (char *)realloc(config_file, MAX_FILENAME_LENGTH);
        if(config_file == NULL) {
            printf("Error allocating memory.\n");
            exit(ERROR);
        }

        /* get absolute path of current working directory */
        getcwd(config_file, MAX_FILENAME_LENGTH);

        /* append a forward slash */
        strncat(config_file, "/", 1);
        config_file[MAX_FILENAME_LENGTH - 1] = '\x0';

        /* append the config file to the path */
        strncat(config_file, buffer, MAX_FILENAME_LENGTH - strlen(config_file) - 1);
        config_file[MAX_FILENAME_LENGTH - 1] = '\x0';

        my_free(buffer);
    }

    /*
     * let's go to town. We'll be noisy if we're verifying config
     * or running scheduling tests.
     */
    if(verify_config || test_scheduling || precache_objects) {
        reset_variables();

        if(verify_config)
            printf("Reading configuration data...\n");

        /* read our config file */
        result = read_main_config_file(config_file);
        if(result != OK) {
            printf("   Error processing main config file!\n\n");
            exit(EXIT_FAILURE);
        }

        if(verify_config)
            printf("   Read main config file okay...\n");

        /* drop privileges */
        if((result = drop_privileges(nagios_user, nagios_group)) == ERROR) {
            printf("   Failed to drop privileges.  Aborting.");
            exit(EXIT_FAILURE);
        }

        /* read object config files */
        result = read_all_object_data(config_file);
        if(result != OK) {
            printf("   Error processing object config files!\n\n");
            /* if the config filename looks fishy, warn the user */
            if(!strstr(config_file, "nagios.cfg")) {
                printf("\n***> The name of the main configuration file looks suspicious...\n");
                printf("\n");
                printf("     Make sure you are specifying the name of the MAIN configuration file on\n");
                printf("     the command line and not the name of another configuration file.  The\n");
                printf("     main configuration file is typically '/usr/local/nagios/etc/nagios.cfg'\n");
            }

            printf("\n***> One or more problems was encountered while processing the config files...\n");
            printf("\n");
            printf("     Check your configuration file(s) to ensure that they contain valid\n");
            printf("     directives and data defintions.  If you are upgrading from a previous\n");
            printf("     version of Nagios, you should be aware that some variables/definitions\n");
            printf("     may have been removed or modified in this version.  Make sure to read\n");
            printf("     the HTML documentation regarding the config files, as well as the\n");
            printf("     'Whats New' section to find out what has changed.\n\n");
            exit(EXIT_FAILURE);
        }

        if(verify_config) {
            printf("   Read object config files okay...\n\n");
            printf("Running pre-flight check on configuration data...\n\n");
        }

        /* run the pre-flight check to make sure things look okay... */
        result = pre_flight_check();

        if(result != OK) {
            printf("\n***> One or more problems was encountered while running the pre-flight check...\n");
            printf("\n");
            printf("     Check your configuration file(s) to ensure that they contain valid\n");
            printf("     directives and data defintions.  If you are upgrading from a previous\n");
            printf("     version of Nagios, you should be aware that some variables/definitions\n");
            printf("     may have been removed or modified in this version.  Make sure to read\n");
            printf("     the HTML documentation regarding the config files, as well as the\n");
            printf("     'Whats New' section to find out what has changed.\n\n");
            exit(EXIT_FAILURE);
        }

        if(verify_config) {
            printf("\nThings look okay - No serious problems were detected during the pre-flight check\n");
        }

        /* scheduling tests need a bit more than config verifications */
        if(test_scheduling == TRUE) {

            /* we'll need the event queue here so we can time insertions */
            init_event_queue();
            timing_point("Done initializing event queue\n");

            /* read initial service and host state information */
            initialize_retention_data(config_file);
            read_initial_state_information();
            timing_point("Retention data and initial state parsed\n");

            /* initialize the event timing loop */
            init_timing_loop();
            timing_point("Timing loop initialized\n");

            /* display scheduling information */
            display_scheduling_info();
        }

        if(precache_objects) {
            result = fcache_objects(object_precache_file);
            timing_point("Done precaching objects\n");
            if(result == OK) {
                printf("Object precache file created:\n%s\n", object_precache_file);
            }
            else {
                printf("Failed to precache objects to '%s': %s\n", object_precache_file, strerror(errno));
            }
        }

        /* clean up after ourselves */
        cleanup();

        /* exit */
        timing_point("Exiting\n");
        exit(result);
    }


    /* else start to monitor things... */
    else {

        nagios_iobs = iobroker_create();

        /* keep monitoring things until we get a shutdown command */
        do {

            init_event_queue();

            /* reset program variables */
            reset_variables();

            /* get PID */
            nagios_pid = (int)getpid();

            /* read in the configuration files (main and resource config files) */
            result = read_main_config_file(config_file);

            /* NOTE 11/06/07 EG moved to after we read config files, as user may have overridden timezone offset */
            /* get program (re)start time and save as macro */
            program_start = time(NULL);
            my_free(mac->x[MACRO_PROCESSSTARTTIME]);
            asprintf(&mac->x[MACRO_PROCESSSTARTTIME], "%lu", (unsigned long)program_start);

            /* open debug log */
            open_debug_log();

            /* drop privileges */
            if(drop_privileges(nagios_user, nagios_group) == ERROR) {

                logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Failed to drop privileges.  Aborting.");

                cleanup();
                exit(ERROR);
            }

#ifdef USE_EVENT_BROKER
            /* initialize modules */
            neb_init_modules();
            neb_init_callback_list();
#endif

            /* this must be logged after we read config data, as user may have changed location of main log file */
            logit(NSLOG_PROCESS_INFO, TRUE, "Nagios %s starting... (PID=%d)\n", PROGRAM_VERSION, (int)getpid());

            /* log the local time - may be different than clock time due to timezone offset */
            now = time(NULL);
            tm = localtime_r(&now, &tm_s);
            strftime(datestring, sizeof(datestring), "%a %b %d %H:%M:%S %Z %Y", tm);
            logit(NSLOG_PROCESS_INFO, TRUE, "Local time is %s", datestring);

            /* write log version/info */
            write_log_file_info(NULL);

#ifdef USE_EVENT_BROKER
            /* load modules */
            neb_load_all_modules();

            /* send program data to broker */
            broker_program_state(NEBTYPE_PROCESS_PRELAUNCH, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

            /* read in all object config data */
            if(result == OK)
                result = read_all_object_data(config_file);

            /* there was a problem reading the config files */
            if(result != OK)
                logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Bailing out due to one or more errors encountered in the configuration files. Run Nagios from the command line with the -v option to verify your config before restarting. (PID=%d)", (int)getpid());

            else {

                /* run the pre-flight check to make sure everything looks okay*/
                if((result = pre_flight_check()) != OK)
                    logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_VERIFICATION_ERROR, TRUE, "Bailing out due to errors encountered while running the pre-flight check.  Run Nagios from the command line with the -v option to verify your config before restarting. (PID=%d)\n", (int)getpid());
            }

            /* an error occurred that prevented us from (re)starting */
            if(result != OK) {

                /* if we were restarting, we need to cleanup from the previous run */
                if(sigrestart == TRUE) {

                    /* clean up the status data */
                    cleanup_status_data(config_file, TRUE);
                }

#ifdef USE_EVENT_BROKER
                /* send program data to broker */
                broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
                cleanup();
                exit(ERROR);
            }

            /* write the objects.cache file */
            fcache_objects(object_cache_file);

            /* handle signals (interrupts) */
            setup_sighandler();


#ifdef USE_EVENT_BROKER
            /* send program data to broker */
            broker_program_state(NEBTYPE_PROCESS_START, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

            /* enter daemon mode (unless we're restarting...) */
            if(daemon_mode == TRUE && sigrestart == FALSE) {

                result = daemon_init();

                /* we had an error daemonizing, so bail... */
                if(result == ERROR) {
                    logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to failure to daemonize. (PID=%d)", (int)getpid());

#ifdef USE_EVENT_BROKER
                    /* send program data to broker */
                    broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
                    cleanup();
                    exit(ERROR);
                }

                asprintf(&buffer, "Finished daemonizing... (New PID=%d)\n", (int)getpid());
                write_to_all_logs(buffer, NSLOG_PROCESS_INFO);
                my_free(buffer);

                /* get new PID */
                nagios_pid = (int)getpid();
            }

            /* initialize status data unless we're starting */
            if(sigrestart == FALSE)
                initialize_status_data(config_file);

            /* read initial service and host state information  */
            initialize_retention_data(config_file);
            read_initial_state_information();

            /* initialize comment data */
            initialize_comment_data(config_file);

            /* initialize scheduled downtime data */
            initialize_downtime_data(config_file);

            /* initialize performance data */
            initialize_performance_data(config_file);

            /* initialize the event timing loop */
            init_timing_loop();

            /* initialize check statistics */
            init_check_stats();

            /* check for updates */
            check_for_nagios_updates(FALSE, TRUE);

            /* update all status data (with retained information) */
            update_all_status_data();

            /* log initial host and service state */
            log_host_states(INITIAL_STATES, NULL);
            log_service_states(INITIAL_STATES, NULL);

            /* reset the restart flag */
            sigrestart = FALSE;

            /* fire up command file worker */
            launch_command_file_worker();

            /* @TODO: get number of workers from config */
            init_workers(4);

#ifdef USE_EVENT_BROKER
            /* send program data to broker */
            broker_program_state(NEBTYPE_PROCESS_EVENTLOOPSTART, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

            /* get event start time and save as macro */
            event_start = time(NULL);
            my_free(mac->x[MACRO_EVENTSTARTTIME]);
            asprintf(&mac->x[MACRO_EVENTSTARTTIME], "%lu", (unsigned long)event_start);

            /***** start monitoring all services *****/
            /* (doesn't return until a restart or shutdown signal is encountered) */
            event_execution_loop();

            /* 03/01/2007 EG Moved from sighandler() to prevent FUTEX locking problems under NPTL */
            /* 03/21/2007 EG SIGSEGV signals are still logged in sighandler() so we don't loose them */
            /* did we catch a signal? */
            if(caught_signal == TRUE) {

                if(sig_id == SIGHUP)
                    logit(NSLOG_PROCESS_INFO, TRUE, "Caught SIGHUP, restarting...\n");

            }

#ifdef USE_EVENT_BROKER
            /* send program data to broker */
            broker_program_state(NEBTYPE_PROCESS_EVENTLOOPEND, NEBFLAG_NONE, NEBATTR_NONE, NULL);
            if(sigshutdown == TRUE)
                broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_USER_INITIATED, NEBATTR_SHUTDOWN_NORMAL, NULL);
            else if(sigrestart == TRUE)
                broker_program_state(NEBTYPE_PROCESS_RESTART, NEBFLAG_USER_INITIATED, NEBATTR_RESTART_NORMAL, NULL);
#endif

            /* save service and host state information */
            save_state_information(FALSE);
            cleanup_retention_data(config_file);

            /* clean up performance data */
            cleanup_performance_data(config_file);

            /* clean up the scheduled downtime data */
            cleanup_downtime_data(config_file);

            /* clean up the status data unless we're restarting */
            if(sigrestart == FALSE) {
                cleanup_status_data(config_file, TRUE);
            }

            /* shutdown stuff... */
            if(sigshutdown == TRUE) {
                free_worker_memory(WPROC_FORCE);
                iobroker_destroy(nagios_iobs, IOBROKER_CLOSE_SOCKETS);

                /* make sure lock file has been removed - it may not have been if we received a shutdown command */
                if(daemon_mode == TRUE)
                    unlink(lock_file);

                /* log a shutdown message */
                logit(NSLOG_PROCESS_INFO, TRUE, "Successfully shutdown... (PID=%d)\n", (int)getpid());
            }

            /* clean up after ourselves */
            cleanup();

            /* close debug log */
            close_debug_log();

        }
        while(sigrestart == TRUE && sigshutdown == FALSE);

        /* free misc memory */
        my_free(config_file);
    }

    return OK;
}
示例#2
0
int main(int argc, char **argv)
{
	int result;
	int error = FALSE;
	int display_license = FALSE;
	int display_help = FALSE;
	int c = 0;
	struct tm *tm, tm_s;
	time_t now;
	char datestring[256];
	nagios_macros *mac;
	const char *worker_socket = NULL;
	int i;

#ifdef HAVE_GETOPT_H
	int option_index = 0;
	static struct option long_options[] = {
		{"help", no_argument, 0, 'h'},
		{"version", no_argument, 0, 'V'},
		{"license", no_argument, 0, 'V'},
		{"verify-config", no_argument, 0, 'v'},
		{"daemon", no_argument, 0, 'd'},
		{"test-scheduling", no_argument, 0, 's'},
		{"precache-objects", no_argument, 0, 'p'},
		{"use-precached-objects", no_argument, 0, 'u'},
		{"enable-timing-point", no_argument, 0, 'T'},
		{"worker", required_argument, 0, 'W'},
		{0, 0, 0, 0}
	};
#define getopt(argc, argv, o) getopt_long(argc, argv, o, long_options, &option_index)
#endif

	memset(&loadctl, 0, sizeof(loadctl));
	mac = get_global_macros();

	/* make sure we have the correct number of command line arguments */
	if (argc < 2)
		error = TRUE;

	/* get all command line arguments */
	while (1) {
		c = getopt(argc, argv, "+hVvdspuxTW");

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

		switch (c) {

		case '?': /* usage */
		case 'h':
			display_help = TRUE;
			break;

		case 'V': /* version */
			display_license = TRUE;
			break;

		case 'v': /* verify */
			verify_config++;
			break;

		case 's': /* scheduling check */
			test_scheduling = TRUE;
			break;

		case 'd': /* daemon mode */
			daemon_mode = TRUE;
			break;

		case 'p': /* precache object config */
			precache_objects = TRUE;
			break;

		case 'u': /* use precached object config */
			use_precached_objects = TRUE;
			break;
		case 'T':
			enable_timing_point = TRUE;
			break;
		case 'W':
			worker_socket = optarg;
			break;

		case 'x':
			printf("Warning: -x is deprecated and will be removed\n");
			break;

		default:
			break;
		}

	}

	/* if we're a worker we can skip everything below */
	if (worker_socket) {
		exit(nagios_core_worker(worker_socket));
	}

	if (daemon_mode == FALSE) {
		printf("\nNaemon Core %s\n", PROGRAM_VERSION);
		printf("Copyright (c) 2013-present Naemon Core Development Team and Community Contributors\n");
		printf("Copyright (c) 2009-2013 Nagios Core Development Team and Community Contributors\n");
		printf("Copyright (c) 1999-2009 Ethan Galstad\n");
		printf("Last Modified: %s\n", PROGRAM_MODIFICATION_DATE);
		printf("License: GPL\n\n");
		printf("Website: http://www.naemon.org\n");
	}

	/* just display the license */
	if (display_license == TRUE) {

		printf("This program is free software; you can redistribute it and/or modify\n");
		printf("it under the terms of the GNU General Public License version 2 as\n");
		printf("published by the Free Software Foundation.\n\n");
		printf("This program is distributed in the hope that it will be useful,\n");
		printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
		printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
		printf("GNU General Public License for more details.\n\n");
		printf("You should have received a copy of the GNU General Public License\n");
		printf("along with this program; if not, write to the Free Software\n");
		printf("Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n\n");

		exit(OK);
	}

	/* make sure we got the main config file on the command line... */
	if (optind >= argc)
		error = TRUE;

	/* if there are no command line options (or if we encountered an error), print usage */
	if (error == TRUE || display_help == TRUE) {

		printf("Usage: %s [options] <main_config_file>\n", argv[0]);
		printf("\n");
		printf("Options:\n");
		printf("\n");
		printf("  -v, --verify-config          Verify all configuration data (-v -v for more info)\n");
		printf("  -s, --test-scheduling        Shows projected/recommended check scheduling and other\n");
		printf("                               diagnostic info based on the current configuration files.\n");
		printf("  -T, --enable-timing-point    Enable timed commentary on initialization\n");
		printf("  -x, --dont-verify-paths      Deprecated (Don't check for circular object paths)\n");
		printf("  -p, --precache-objects       Precache object configuration\n");
		printf("  -u, --use-precached-objects  Use precached object config file\n");
		printf("  -d, --daemon                 Starts Naemon in daemon mode, instead of as a foreground process\n");
		printf("  -W, --worker /path/to/socket Act as a worker for an already running daemon\n");
		printf("\n");
		printf("Visit the Naemon website at http://www.naemon.org/ for bug fixes, new\n");
		printf("releases, online documentation, FAQs and more...\n");
		printf("\n");

		exit(ERROR);
	}


	/*
	 * config file is last argument specified.
	 * Make sure it uses an absolute path
	 */
	config_file = nspath_absolute(argv[optind], NULL);
	if (config_file == NULL) {
		printf("Error allocating memory.\n");
		exit(ERROR);
	}

	config_file_dir = nspath_absolute_dirname(config_file, NULL);

	/*
	 * Set the signal handler for the SIGXFSZ signal here because
	 * we may encounter this signal before the other signal handlers
	 * are set.
	 */
	signal(SIGXFSZ, handle_sigxfsz);

	/*
	 * let's go to town. We'll be noisy if we're verifying config
	 * or running scheduling tests.
	 */
	if (verify_config || test_scheduling || precache_objects) {
		reset_variables();
		/*
		 * if we don't beef up our resource limits as much as
		 * we can, it's quite possible we'll run headlong into
		 * EAGAIN due to too many processes when we try to
		 * drop privileges later.
		 */
		set_loadctl_defaults();

		if (verify_config)
			printf("Reading configuration data...\n");

		/* read our config file */
		result = read_main_config_file(config_file);
		if (result != OK) {
			printf("   Error processing main config file!\n\n");
			exit(EXIT_FAILURE);
		}

		if (verify_config)
			printf("   Read main config file okay...\n");

		/* drop privileges */
		if ((result = drop_privileges(naemon_user, naemon_group)) == ERROR) {
			printf("   Failed to drop privileges.  Aborting.");
			exit(EXIT_FAILURE);
		}

		/*
		 * this must come after dropping privileges, so we make
		 * sure to test access permissions as the right user.
		 */
		if (test_configured_paths() == ERROR) {
			printf("   One or more path problems detected. Aborting.\n");
			exit(EXIT_FAILURE);
		}

		/* read object config files */
		result = read_all_object_data(config_file);
		if (result != OK) {
			printf("   Error processing object config files!\n\n");
			/* if the config filename looks fishy, warn the user */
			if (!strstr(config_file, "naemon.cfg")) {
				printf("\n***> The name of the main configuration file looks suspicious...\n");
				printf("\n");
				printf("     Make sure you are specifying the name of the MAIN configuration file on\n");
				printf("     the command line and not the name of another configuration file.  The\n");
				printf("     main configuration file is typically '%s'\n", DEFAULT_CONFIG_FILE);
			}

			printf("\n***> One or more problems was encountered while processing the config files...\n");
			printf("\n");
			printf("     Check your configuration file(s) to ensure that they contain valid\n");
			printf("     directives and data defintions.  If you are upgrading from a previous\n");
			printf("     version of Naemon, you should be aware that some variables/definitions\n");
			printf("     may have been removed or modified in this version.  Make sure to read\n");
			printf("     the HTML documentation regarding the config files, as well as the\n");
			printf("     'Whats New' section to find out what has changed.\n\n");
			exit(EXIT_FAILURE);
		}

		if (verify_config) {
			printf("   Read object config files okay...\n\n");
			printf("Running pre-flight check on configuration data...\n\n");
		}

		/* run the pre-flight check to make sure things look okay... */
		result = pre_flight_check();

		if (result != OK) {
			printf("\n***> One or more problems was encountered while running the pre-flight check...\n");
			printf("\n");
			printf("     Check your configuration file(s) to ensure that they contain valid\n");
			printf("     directives and data defintions.  If you are upgrading from a previous\n");
			printf("     version of Naemon, you should be aware that some variables/definitions\n");
			printf("     may have been removed or modified in this version.  Make sure to read\n");
			printf("     the HTML documentation regarding the config files, as well as the\n");
			printf("     'Whats New' section to find out what has changed.\n\n");
			exit(EXIT_FAILURE);
		}

		if (verify_config) {
			printf("\nThings look okay - No serious problems were detected during the pre-flight check\n");
		}

		/* scheduling tests need a bit more than config verifications */
		if (test_scheduling == TRUE) {

			/* we'll need the event queue here so we can time insertions */
			init_event_queue();
			timing_point("Done initializing event queue\n");

			/* read initial service and host state information */
			initialize_retention_data(config_file);
			read_initial_state_information();
			timing_point("Retention data and initial state parsed\n");

			/* initialize the event timing loop */
			init_timing_loop();
			timing_point("Timing loop initialized\n");

			/* display scheduling information */
			display_scheduling_info();
		}

		if (precache_objects) {
			result = fcache_objects(object_precache_file);
			timing_point("Done precaching objects\n");
			if (result == OK) {
				printf("Object precache file created:\n%s\n", object_precache_file);
			} else {
				printf("Failed to precache objects to '%s': %s\n", object_precache_file, strerror(errno));
			}
		}

		/* clean up after ourselves */
		cleanup();

		/* exit */
		timing_point("Exiting\n");

		/* make valgrind shut up about still reachable memory */
		neb_free_module_list();
		free(config_file_dir);
		free(config_file);

		exit(result);
	}


	/* start to monitor things... */

	/*
	 * if we're called with a relative path we must make
	 * it absolute so we can launch our workers.
	 * If not, we needn't bother, as we're using execvp()
	 */
	if (strchr(argv[0], '/'))
		naemon_binary_path = nspath_absolute(argv[0], NULL);
	else
		naemon_binary_path = strdup(argv[0]);

	if (!naemon_binary_path) {
		logit(NSLOG_RUNTIME_ERROR, TRUE, "Error: Unable to allocate memory for naemon_binary_path\n");
		exit(EXIT_FAILURE);
	}

	if (!(nagios_iobs = iobroker_create())) {
		logit(NSLOG_RUNTIME_ERROR, TRUE, "Error: Failed to create IO broker set: %s\n",
		      strerror(errno));
		exit(EXIT_FAILURE);
	}

	/* keep monitoring things until we get a shutdown command */
	do {
		/* reset internal book-keeping (in case we're restarting) */
		wproc_num_workers_spawned = wproc_num_workers_online = 0;
		caught_signal = sigshutdown = sigrestart = FALSE;
		sig_id = 0;

		/* reset program variables */
		reset_variables();
		timing_point("Variables reset\n");

		/* get PID */
		nagios_pid = (int)getpid();

		/* read in the configuration files (main and resource config files) */
		result = read_main_config_file(config_file);
		if (result != OK) {
			logit(NSLOG_CONFIG_ERROR, TRUE, "Error: Failed to process config file '%s'. Aborting\n", config_file);
			exit(EXIT_FAILURE);
		}
		timing_point("Main config file read\n");

		/* NOTE 11/06/07 EG moved to after we read config files, as user may have overridden timezone offset */
		/* get program (re)start time and save as macro */
		program_start = time(NULL);
		my_free(mac->x[MACRO_PROCESSSTARTTIME]);
		asprintf(&mac->x[MACRO_PROCESSSTARTTIME], "%lu", (unsigned long)program_start);

		/* drop privileges */
		if (drop_privileges(naemon_user, naemon_group) == ERROR) {

			logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Failed to drop privileges.  Aborting.");

			cleanup();
			exit(ERROR);
		}

		if (test_path_access(naemon_binary_path, X_OK)) {
			logit(NSLOG_RUNTIME_ERROR, TRUE, "Error: failed to access() %s: %s\n", naemon_binary_path, strerror(errno));
			logit(NSLOG_RUNTIME_ERROR, TRUE, "Error: Spawning workers will be impossible. Aborting.\n");
			exit(EXIT_FAILURE);
		}

		if (test_configured_paths() == ERROR) {
			/* error has already been logged */
			exit(EXIT_FAILURE);
		}
		/* enter daemon mode (unless we're restarting...) */
		if (daemon_mode == TRUE && sigrestart == FALSE) {

			result = daemon_init();

			/* we had an error daemonizing, so bail... */
			if (result == ERROR) {
				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to failure to daemonize. (PID=%d)", (int)getpid());
				cleanup();
				exit(EXIT_FAILURE);
			}

			/* get new PID */
			nagios_pid = (int)getpid();
		}

		/* this must be logged after we read config data, as user may have changed location of main log file */
		logit(NSLOG_PROCESS_INFO, TRUE, "Naemon %s starting... (PID=%d)\n", PROGRAM_VERSION, (int)getpid());

		/* log the local time - may be different than clock time due to timezone offset */
		now = time(NULL);
		tm = localtime_r(&now, &tm_s);
		strftime(datestring, sizeof(datestring), "%a %b %d %H:%M:%S %Z %Y", tm);
		logit(NSLOG_PROCESS_INFO, TRUE, "Local time is %s", datestring);

		/* write log version/info */
		write_log_file_info(NULL);

		/* open debug log now that we're the right user */
		open_debug_log();

#ifdef USE_EVENT_BROKER
		/* initialize modules */
		neb_init_modules();
		neb_init_callback_list();
#endif
		timing_point("NEB module API initialized\n");

		/* handle signals (interrupts) before we do any socket I/O */
		setup_sighandler();

		/*
		 * Initialize query handler and event subscription service.
		 * This must be done before modules are initialized, so
		 * the modules can use our in-core stuff properly
		 */
		if (qh_init(qh_socket_path ? qh_socket_path : DEFAULT_QUERY_SOCKET) != OK) {
			logit(NSLOG_RUNTIME_ERROR, TRUE, "Error: Failed to initialize query handler. Aborting\n");
			exit(EXIT_FAILURE);
		}
		timing_point("Query handler initialized\n");
		nerd_init();
		timing_point("NERD initialized\n");

		/* initialize check workers */
		if (init_workers(num_check_workers) < 0) {
			logit(NSLOG_RUNTIME_ERROR, TRUE, "Failed to spawn workers. Aborting\n");
			exit(EXIT_FAILURE);
		}
		timing_point("%u workers spawned\n", wproc_num_workers_spawned);
		i = 0;
		while (i < 50 && wproc_num_workers_online < wproc_num_workers_spawned) {
			iobroker_poll(nagios_iobs, 50);
			i++;
		}
		timing_point("%u workers connected\n", wproc_num_workers_online);

		/* now that workers have arrived we can set the defaults */
		set_loadctl_defaults();

		/* read in all object config data */
		if (result == OK)
			result = read_all_object_data(config_file);

		/*
		 * the queue has to be initialized befor loading the neb modules
		 * to give them the chance to register user events.
		 * (initializing event queue requires number of objects, so do
		 * this after parsing the objects)
		 */
		init_event_queue();
		timing_point("Event queue initialized\n");

#ifdef USE_EVENT_BROKER
		/* load modules */
		if (neb_load_all_modules() != OK) {
			logit(NSLOG_CONFIG_ERROR, ERROR, "Error: Module loading failed. Aborting.\n");
			/* if we're dumping core, we must remove all dl-files */
			if (daemon_dumps_core)
				neb_unload_all_modules(NEBMODULE_FORCE_UNLOAD, NEBMODULE_NEB_SHUTDOWN);
			exit(EXIT_FAILURE);
		}
		timing_point("Modules loaded\n");

		/* send program data to broker */
		broker_program_state(NEBTYPE_PROCESS_PRELAUNCH, NEBFLAG_NONE, NEBATTR_NONE, NULL);
		timing_point("First callback made\n");
#endif

		/* there was a problem reading the config files */
		if (result != OK)
			logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Bailing out due to one or more errors encountered in the configuration files. Run Naemon from the command line with the -v option to verify your config before restarting. (PID=%d)", (int)getpid());

		else {

			/* run the pre-flight check to make sure everything looks okay*/
			if ((result = pre_flight_check()) != OK)
				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_VERIFICATION_ERROR, TRUE, "Bailing out due to errors encountered while running the pre-flight check.  Run Naemon from the command line with the -v option to verify your config before restarting. (PID=%d)\n", (int)getpid());
		}

		/* an error occurred that prevented us from (re)starting */
		if (result != OK) {

			/* if we were restarting, we need to cleanup from the previous run */
			if (sigrestart == TRUE) {

				/* clean up the status data */
				cleanup_status_data(TRUE);
			}

#ifdef USE_EVENT_BROKER
			/* send program data to broker */
			broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
			cleanup();
			exit(ERROR);
		}

		timing_point("Object configuration parsed and understood\n");

		/* write the objects.cache file */
		fcache_objects(object_cache_file);
		timing_point("Objects cached\n");

#ifdef USE_EVENT_BROKER
		/* send program data to broker */
		broker_program_state(NEBTYPE_PROCESS_START, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

		/* initialize status data unless we're starting */
		if (sigrestart == FALSE) {
			initialize_status_data(config_file);
			timing_point("Status data initialized\n");
		}

		/* initialize scheduled downtime data */
		initialize_downtime_data();
		timing_point("Downtime data initialized\n");

		/* read initial service and host state information  */
		initialize_retention_data(config_file);
		timing_point("Retention data initialized\n");
		read_initial_state_information();
		timing_point("Initial state information read\n");

		/* initialize comment data */
		initialize_comment_data();
		timing_point("Comment data initialized\n");

		/* initialize performance data */
		initialize_performance_data(config_file);
		timing_point("Performance data initialized\n");

		/* initialize the event timing loop */
		init_timing_loop();
		timing_point("Event timing loop initialized\n");

		/* initialize check statistics */
		init_check_stats();
		timing_point("check stats initialized\n");

		/* update all status data (with retained information) */
		update_all_status_data();
		timing_point("Status data updated\n");

		/* log initial host and service state */
		log_host_states(INITIAL_STATES, NULL);
		log_service_states(INITIAL_STATES, NULL);
		timing_point("Initial states logged\n");

		/* reset the restart flag */
		sigrestart = FALSE;

		/* fire up command file worker */
		launch_command_file_worker();
		timing_point("Command file worker launched\n");

#ifdef USE_EVENT_BROKER
		/* send program data to broker */
		broker_program_state(NEBTYPE_PROCESS_EVENTLOOPSTART, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

		/* get event start time and save as macro */
		event_start = time(NULL);
		my_free(mac->x[MACRO_EVENTSTARTTIME]);
		asprintf(&mac->x[MACRO_EVENTSTARTTIME], "%lu", (unsigned long)event_start);

		timing_point("Entering event execution loop\n");
		/***** start monitoring all services *****/
		/* (doesn't return until a restart or shutdown signal is encountered) */
		event_execution_loop();

		/*
		 * immediately deinitialize the query handler so it
		 * can remove modules that have stashed data with it
		 */
		qh_deinit(qh_socket_path ? qh_socket_path : DEFAULT_QUERY_SOCKET);

		/* 03/01/2007 EG Moved from sighandler() to prevent FUTEX locking problems under NPTL */
		/* 03/21/2007 EG SIGSEGV signals are still logged in sighandler() so we don't loose them */
		/* did we catch a signal? */
		if (caught_signal == TRUE) {

			if (sig_id == SIGHUP)
				logit(NSLOG_PROCESS_INFO, TRUE, "Caught SIGHUP, restarting...\n");

		}

#ifdef USE_EVENT_BROKER
		/* send program data to broker */
		broker_program_state(NEBTYPE_PROCESS_EVENTLOOPEND, NEBFLAG_NONE, NEBATTR_NONE, NULL);
		if (sigshutdown == TRUE)
			broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_USER_INITIATED, NEBATTR_SHUTDOWN_NORMAL, NULL);
		else if (sigrestart == TRUE)
			broker_program_state(NEBTYPE_PROCESS_RESTART, NEBFLAG_USER_INITIATED, NEBATTR_RESTART_NORMAL, NULL);
#endif

		disconnect_command_file_worker();

		/* save service and host state information */
		save_state_information(FALSE);
		cleanup_retention_data();

		/* clean up performance data */
		cleanup_performance_data();

		/* clean up the scheduled downtime data */
		cleanup_downtime_data();

		/* clean up the status data unless we're restarting */
		if (sigrestart == FALSE) {
			cleanup_status_data(TRUE);
		}

		free_worker_memory(WPROC_FORCE);
		/* shutdown stuff... */
		if (sigshutdown == TRUE) {
			iobroker_destroy(nagios_iobs, IOBROKER_CLOSE_SOCKETS);
			nagios_iobs = NULL;

			/* log a shutdown message */
			logit(NSLOG_PROCESS_INFO, TRUE, "Successfully shutdown... (PID=%d)\n", (int)getpid());
		}

		/* clean up after ourselves */
		cleanup();

		/* close debug log */
		close_debug_log();

	} while (sigrestart == TRUE && sigshutdown == FALSE);

	if (daemon_mode == TRUE)
		unlink(lock_file);

	/* free misc memory */
	my_free(lock_file);
	my_free(config_file);
	my_free(config_file_dir);
	my_free(naemon_binary_path);

	return OK;
}
示例#3
0
/* Following main() declaration required by older versions of Perl ut 5.00503 */
int main(int argc, char **argv, char **env) {
	int result;
	int error = FALSE;
	char *buffer = NULL;
	int display_license = FALSE;
	int display_help = FALSE;
	int c = 0;
	struct tm *tm, tm_s;
	time_t now;
	char datestring[256];
	icinga_macros *mac;

#ifdef HAVE_GETOPT_H
	int option_index = 0;
	static struct option long_options[] = {
		{"help", no_argument, 0, 'h'},
		{"version", no_argument, 0, 'V'},
		{"license", no_argument, 0, 'V'},
		{"verify-config", no_argument, 0, 'v'},
		{"daemon", no_argument, 0, 'd'},
		{"test-scheduling", no_argument, 0, 's'},
		{"show-scheduling", no_argument, 0, 'S'},
		{"dont-verify-objects", no_argument, 0, 'o'},
		{"dont-verify-paths", no_argument, 0, 'x'},
		{"precache-objects", no_argument, 0, 'p'},
		{"use-precached-objects", no_argument, 0, 'u'},
		{0, 0, 0, 0}
	};
#endif

	mac = get_global_macros();

	/* make sure we have the correct number of command line arguments */
	if (argc < 2)
		error = TRUE;


	/* get all command line arguments */
	while (1) {

#ifdef HAVE_GETOPT_H
		c = getopt_long(argc, argv, "+hVvdsoxpuS", long_options, &option_index);
#else
		c = getopt(argc, argv, "+hVvdsoxpuS");
#endif

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

		switch (c) {

		case '?': /* usage */
		case 'h':
			display_help = TRUE;
			break;

		case 'V': /* version */
			display_license = TRUE;
			break;

		case 'v': /* verify */
			verify_config++;
			break;

		case 's': /* scheduling check */
			test_scheduling = TRUE;
			break;

		case 'S': /* scheduling check and show queue*/
			show_schedule = TRUE;
			test_scheduling = TRUE;
			break;

		case 'd': /* daemon mode */
			daemon_mode = TRUE;
			break;

		case 'o': /* don't verify objects */
			/*
			verify_object_relationships=FALSE;
			*/
			break;

		case 'x': /* don't verify circular paths */
			verify_circular_paths = FALSE;
			break;

		case 'p': /* precache object config */
			precache_objects = TRUE;
			break;

		case 'u': /* use precached object config */
			use_precached_objects = TRUE;
			break;

		default:
			break;
		}

	}

	/* make sure we have the right combination of arguments */
	if (precache_objects == TRUE && (test_scheduling == FALSE && verify_config == 0)) {
		error = TRUE;
		display_help = TRUE;
	}

#ifdef DEBUG_MEMORY
	mtrace();
#endif

	if (daemon_mode == FALSE) {
		printf("\n%s %s\n", PROGRAM_NAME , PROGRAM_VERSION);
		printf("Copyright (c) 2009-present Icinga Development Team (http://www.icinga.org)\n");
		printf("Copyright (c) 2009-2013 Nagios Core Development Team and Community Contributors\n");
		printf("Copyright (c) 1999-2009 Ethan Galstad\n");
		printf("Last Modified: %s\n", PROGRAM_MODIFICATION_DATE);
		printf("License: GPL\n\n");
	}

	/* just display the license */
	if (display_license == TRUE) {

		printf("This program is free software; you can redistribute it and/or modify\n");
		printf("it under the terms of the GNU General Public License version 2 as\n");
		printf("published by the Free Software Foundation.\n\n");
		printf("This program is distributed in the hope that it will be useful,\n");
		printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
		printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
		printf("GNU General Public License for more details.\n\n");
		printf("You should have received a copy of the GNU General Public License\n");
		printf("along with this program; if not, write to the Free Software\n");
		printf("Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n\n");

		exit(OK);
	}

	/* make sure we got the main config file on the command line... */
	if (optind >= argc)
		error = TRUE;

	/* if there are no command line options (or if we encountered an error), print usage */
	if (error == TRUE || display_help == TRUE) {

		printf("Usage: %s [options] <main_config_file>\n", argv[0]);
		printf("\n");
		printf("Options:\n");
		printf("\n");
		printf("  -v, --verify-config          Verify all configuration data\n");
		printf("  -s, --test-scheduling        Shows projected/recommended check scheduling and other\n");
		printf("                               diagnostic info based on the current configuration files.\n");
		printf("  -S, --show-scheduling        Same as -s, but also show the scheduling queue\n");
		/*printf("  -o, --dont-verify-objects    Don't verify object relationships - USE WITH CAUTION!\n");*/
		printf("  -x, --dont-verify-paths      Don't check for circular object paths - USE WITH CAUTION!\n");
		printf("  -p, --precache-objects       Precache object configuration - use with -v or -s options\n");
		printf("  -u, --use-precached-objects  Use precached object config file\n");
		printf("  -d, --daemon                 Starts %s in daemon mode, instead of as a foreground process\n", PROGRAM_NAME);
		printf("\n");
		printf("Visit the %s website at http://www.icinga.org/ for bug fixes, new\n", PROGRAM_NAME);
		printf("releases, online documentation, FAQs, information on subscribing to\n");
		printf("the mailing lists, and commercial support options for %s.\n", PROGRAM_NAME);
		printf("\n");

		exit(ERROR);
	}


	/* config file is last argument specified */
	config_file = (char *)strdup(argv[optind]);
	if (config_file == NULL) {
		printf("Error allocating memory.\n");
		exit(ERROR);
	}

	/* make sure the config file uses an absolute path */
	if (config_file[0] != '/') {

		/* save the name of the config file */
		buffer = (char *)strdup(config_file);

		/* reallocate a larger chunk of memory */
		config_file = (char *)realloc(config_file, MAX_FILENAME_LENGTH);
		if (config_file == NULL) {
			printf("Error allocating memory.\n");
			exit(ERROR);
		}

		/* get absolute path of current working directory */
		getcwd(config_file, MAX_FILENAME_LENGTH);

		/* append a forward slash */
		strncat(config_file, "/", 1);
		config_file[MAX_FILENAME_LENGTH-1] = '\x0';

		/* append the config file to the path */
		strncat(config_file, buffer, MAX_FILENAME_LENGTH - strlen(config_file) - 1);
		config_file[MAX_FILENAME_LENGTH-1] = '\x0';

		my_free(buffer);
	}


	/* we're just verifying the configuration... */
	if (verify_config) {

		/* reset program variables */
		reset_variables();

		printf("Reading configuration data...\n");

		/* read in the configuration files (main config file, resource and object config files) */
		if ((result = read_main_config_file(config_file)) == OK) {

			printf("   Read main config file okay...\n");

			/* drop privileges */
			if ((result = drop_privileges(nagios_user, nagios_group)) == ERROR)
				printf("   Failed to drop privileges.  Aborting.");
			else {
				/* read object config files */
				if ((result = read_all_object_data(config_file)) == OK)
					printf("   Read object config files okay...\n");
				else
					printf("   Error processing object config files!\n");
			}
		} else
			printf("   Error processing main config file!\n\n");

		printf("\n");

		/* there was a problem reading the config files */
		if (result != OK) {

			/* if the config filename looks fishy, warn the user */
			if (!strstr(config_file, "nagios.cfg") && !strstr(config_file, "icinga.cfg")) {
				printf("\n***> The name of the main configuration file looks suspicious...\n");
				printf("\n");
				printf("     Make sure you are specifying the name of the MAIN configuration file on\n");
				printf("     the command line and not the name of another configuration file.  The\n");
				printf("     main configuration file is typically '/usr/local/icinga/etc/icinga.cfg'\n");
				printf("     or if using packages, most likely '/etc/icinga/icinga.cfg'\n");
			}

			printf("\n***> One or more problems was encountered while processing the config files...\n");
			printf("\n");
			printf("     Check your configuration file(s) to ensure that they contain valid\n");
			printf("     directives and data definitions.  If you are upgrading from a previous\n");
			printf("     version of %s, you should be aware that some variables/definitions\n", PROGRAM_NAME);
			printf("     may have been removed or modified in this version.  Make sure to read\n");
			printf("     the HTML documentation regarding the config files, as well as the\n");
			printf("     'Whats New' section and the Changelog CHANGES section as well to find\n");
			printf("     out what has changed.\n\n");
		}

		/* the config files were okay, so run the pre-flight check */
		else {

			printf("Running pre-flight check on configuration data...\n\n");

			/* run the pre-flight check to make sure things look okay... */
			result = pre_flight_check();

			if (result == OK)
				printf("\nThings look okay - No serious problems were detected during the pre-flight check\n");
			else {
				printf("\n***> One or more problems was encountered while running the pre-flight check...\n");
				printf("\n");
				printf("     Check your configuration file(s) to ensure that they contain valid\n");
				printf("     directives and data definitions.  If you are upgrading from a previous\n");
				printf("     version of %s, you should be aware that some variables/definitions\n", PROGRAM_NAME);
				printf("     may have been removed or modified in this version.  Make sure to read\n");
				printf("     the HTML documentation regarding the config files, as well as the\n");
				printf("     'Whats New' section to find out what has changed.\n\n");
			}
		}

		/* clean up after ourselves */
		cleanup();

		/* free config_file */
		my_free(config_file);

		/* exit */
		exit(result);
	}


	/* we're just testing scheduling... */
	else if (test_scheduling == TRUE) {

		/* reset program variables */
		reset_variables();

		/* read in the configuration files (main config file and all host config files) */
		result = read_main_config_file(config_file);

		/* drop privileges */
		if (result == OK)
			if ((result = drop_privileges(nagios_user, nagios_group)) == ERROR)
				printf("Failed to drop privileges.  Aborting.");

		/* read object config files */
		if (result == OK)
			result = read_all_object_data(config_file);

		/* read initial service and host state information */
		if (result == OK) {
			initialize_retention_data(config_file);
			read_initial_state_information();
		}

		if (result != OK)
			printf("***> One or more problems was encountered while reading configuration data...\n");

		/* run the pre-flight check to make sure everything looks okay */
		if (result == OK) {
			if ((result = pre_flight_check()) != OK)
				printf("***> One or more problems was encountered while running the pre-flight check...\n");
		}

		if (result == OK) {

			/* initialize the event timing loop */
			init_timing_loop();

			/* display schedule */
			if (show_schedule == TRUE)
				display_schedule();

			/* display scheduling information */
			display_scheduling_info();

			if (precache_objects == TRUE) {
				printf("\n");
				printf("OBJECT PRECACHING\n");
				printf("-----------------\n");
				printf("Object config files were precached.\n");
			}
		}

#undef TEST_TIMEPERIODS
#ifdef TEST_TIMEPERIODS
		/* DO SOME TIMEPERIOD TESTING - ADDED 08/11/2009 */
		time_t now, pref_time, valid_time;
		timeperiod *tp;
		tp = find_timeperiod("247_exclusion");
		time(&now);
		pref_time = now;
		get_next_valid_time(pref_time, &valid_time, tp);
		printf("=====\n");
		printf("CURRENT:   %lu = %s", (unsigned long)now, ctime(&now));
		printf("PREFERRED: %lu = %s", (unsigned long)pref_time, ctime(&pref_time));
		printf("NEXT:      %lu = %s", (unsigned long)valid_time, ctime(&valid_time));
		printf("=====\n");
#endif

		/* clean up after ourselves */
		cleanup();

		/* exit */
		exit(result);
	}


	/* else start to monitor things... */
	else {

		/* keep monitoring things until we get a shutdown command */
		do {

			/* reset program variables */
			reset_variables();

			/* get PID */
			nagios_pid = (int)getpid();

			/* read in the configuration files (main and resource config files) */
			if (read_main_config_file(config_file) == ERROR) {
				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Failed to read main config file.  Aborting.");
				cleanup();
				exit(EXIT_FAILURE);
			}

			/* we need to read the modules in the first place as object configuration before neb modules are initialized/loaded */
			result = read_object_config_data(config_file, READ_MODULES, FALSE, FALSE);

			/* add modules to neb */
			result = add_module_objects_to_neb();

			/* NOTE 11/06/07 EG moved to after we read config files, as user may have overridden timezone offset */
			/* get program (re)start time and save as macro */
			program_start = time(NULL);
			my_free(mac->x[MACRO_PROCESSSTARTTIME]);
			asprintf(&mac->x[MACRO_PROCESSSTARTTIME], "%lu", (unsigned long)program_start);

			/* open debug log */
			open_debug_log();

			/* drop privileges */
			if (drop_privileges(nagios_user, nagios_group) == ERROR) {

				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Failed to drop privileges.  Aborting.");

				cleanup();
				exit(ERROR);
			}

#ifdef USE_EVENT_BROKER
			/* initialize modules */
			neb_init_modules();
			neb_init_callback_list();
#endif

			/* this must be logged after we read config data, as user may have changed location of main log file */
			logit(NSLOG_PROCESS_INFO, TRUE, "%s %s starting... (PID=%d)\n", PROGRAM_NAME, PROGRAM_VERSION, (int)getpid());

			/* log the local time - may be different than clock time due to timezone offset */
			now = time(NULL);
			tm = localtime_r(&now, &tm_s);
			strftime(datestring, sizeof(datestring), "%a %b %d %H:%M:%S %Z %Y", tm);
			logit(NSLOG_PROCESS_INFO, TRUE, "Local time is %s", datestring);

			/* write log version/info */
			write_log_file_info(NULL);

#ifdef USE_EVENT_BROKER
			/* load modules */
			if (neb_load_all_modules() != OK) {
                logit(NSLOG_CONFIG_ERROR, ERROR, "Error: NEB module loading failed. Aborting.\n");

                if (daemon_dumps_core)
                    neb_unload_all_modules(NEBMODULE_FORCE_UNLOAD, NEBMODULE_NEB_SHUTDOWN);

                exit(EXIT_FAILURE);
            }

			/* forcibly send a program status update
			 * for later updates of PROCESS_* */
			broker_program_status(NEBTYPE_PROGRAMSTATUS_UPDATE, NEBFLAG_NONE, NEBATTR_NONE, NULL);

			/* send program data to broker */
			broker_program_state(NEBTYPE_PROCESS_PRELAUNCH, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

			/* read in all object config data */
			if (result == OK)
				result = read_all_object_data(config_file);

			/* there was a problem reading the config files */
			if (result != OK)
				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_CONFIG_ERROR, TRUE, "Bailing out due to one or more errors encountered in the configuration files. Run %s from the command line with the -v option to verify your config before restarting. (PID=%d)", PROGRAM_NAME , (int)getpid());

			else {

				/* run the pre-flight check to make sure everything looks okay*/
				if ((result = pre_flight_check()) != OK)
					logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR | NSLOG_VERIFICATION_ERROR, TRUE, "Bailing out due to errors encountered while running the pre-flight check.  Run %s from the command line with the -v option to verify your config before restarting. (PID=%d)\n", PROGRAM_NAME , (int)getpid());
			}

			/* an error occurred that prevented us from (re)starting */
			if (result != OK) {

				/* if we were restarting, we need to cleanup from the previous run */
				if (sigrestart == TRUE) {

					/* clean up the status data */
					cleanup_status_data(config_file, TRUE);

					/* shutdown the external command worker thread */
					shutdown_command_file_worker_thread();

					/* close and delete the external command file FIFO */
					close_command_file();

					/* cleanup embedded perl interpreter */
					if (embedded_perl_initialized == TRUE)
						deinit_embedded_perl();
				}

#ifdef USE_EVENT_BROKER
				/* send program data to broker */
				broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
				cleanup();
				exit(ERROR);
			}



			/* initialize embedded Perl interpreter */
			/* NOTE 02/15/08 embedded Perl must be initialized if compiled in, regardless of whether or not its enabled in the config file */
			/* It compiled it, but not initialized, Icinga will segfault in readdir() calls, as libperl takes this function over */
			if (embedded_perl_initialized == FALSE) {
				/*				if(enable_embedded_perl==TRUE){*/
#ifdef EMBEDDEDPERL
				init_embedded_perl(env);
#else
				init_embedded_perl(NULL);
#endif
				embedded_perl_initialized = TRUE;
				/*					}*/
			}

			/* handle signals (interrupts) */
			setup_sighandler();


#ifdef USE_EVENT_BROKER
			/* send program data to broker */
			broker_program_state(NEBTYPE_PROCESS_START, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

			/* enter daemon mode (unless we're restarting...) */
			if (daemon_mode == TRUE && sigrestart == FALSE) {

				result = daemon_init();

				/* we had an error daemonizing, so bail... */
				if (result == ERROR) {
					logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to failure to daemonize. (PID=%d)", (int)getpid());

#ifdef USE_EVENT_BROKER
					/* send program data to broker */
					broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
					cleanup();
					exit(ERROR);
				}

				asprintf(&buffer, "Finished daemonizing... (New PID=%d)\n", (int)getpid());
				write_to_all_logs(buffer, NSLOG_PROCESS_INFO);
				my_free(buffer);

				/* get new PID */
				nagios_pid = (int)getpid();
			}

			/* open the command file (named pipe) for reading */
			result = open_command_file();
			if (result != OK) {

				logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to errors encountered while trying to initialize the external command file... (PID=%d)\n", (int)getpid());

#ifdef USE_EVENT_BROKER
				/* send program data to broker */
				broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_PROCESS_INITIATED, NEBATTR_SHUTDOWN_ABNORMAL, NULL);
#endif
				cleanup();
				exit(ERROR);
			}

			/* initialize status data unless we're starting */
			if (sigrestart == FALSE)
				initialize_status_data(config_file);

			/* read initial service and host state information  */
			initialize_retention_data(config_file);
			read_initial_state_information();
			sync_state_information();

			/* initialize comment data */
			initialize_comment_data(config_file);

			/* initialize scheduled downtime data */
			initialize_downtime_data(config_file);

			/* initialize performance data */
			initialize_performance_data(config_file);

			/* initialize the event timing loop */
			init_timing_loop();

			/* initialize check statistics */
			init_check_stats();

			/* update all status data (with retained information) */
			update_all_status_data();

			/* log initial host and service state */
			log_host_states(INITIAL_STATES, NULL);
			log_service_states(INITIAL_STATES, NULL);

			/* reset the restart flag */
			sigrestart = FALSE;

#ifdef USE_EVENT_BROKER
			/* send program data to broker */
			broker_program_state(NEBTYPE_PROCESS_EVENTLOOPSTART, NEBFLAG_NONE, NEBATTR_NONE, NULL);
#endif

			/* get event start time and save as macro */
			event_start = time(NULL);
			my_free(mac->x[MACRO_EVENTSTARTTIME]);
			asprintf(&mac->x[MACRO_EVENTSTARTTIME], "%lu", (unsigned long)event_start);

			/* print event loop start */
			asprintf(&buffer, "Event loop started...\n");
			write_to_all_logs(buffer, NSLOG_PROCESS_INFO);
			my_free(buffer);

			/***** start monitoring all services *****/
			/* (doesn't return until a restart or shutdown signal is encountered) */
			event_execution_loop();

			/* 03/01/2007 EG Moved from sighandler() to prevent FUTEX locking problems under NPTL */
			/* 03/21/2007 EG SIGSEGV signals are still logged in sighandler() so we don't loose them */
			/* did we catch a signal? */
			if (caught_signal == TRUE) {

				if (sig_id == SIGHUP)
					asprintf(&buffer, "Caught SIGHUP, restarting...\n");
				else if (sig_id != SIGSEGV)
					asprintf(&buffer, "Caught SIG%s, shutting down...\n", sigs[sig_id]);

				write_to_all_logs(buffer, NSLOG_PROCESS_INFO);
				my_free(buffer);
			}

#ifdef USE_EVENT_BROKER
			/* send program data to broker */
			broker_program_state(NEBTYPE_PROCESS_EVENTLOOPEND, NEBFLAG_NONE, NEBATTR_NONE, NULL);
			if (sigshutdown == TRUE)
				broker_program_state(NEBTYPE_PROCESS_SHUTDOWN, NEBFLAG_USER_INITIATED, NEBATTR_SHUTDOWN_NORMAL, NULL);
			else if (sigrestart == TRUE)
				broker_program_state(NEBTYPE_PROCESS_RESTART, NEBFLAG_USER_INITIATED, NEBATTR_RESTART_NORMAL, NULL);
#endif

			/* save service and host state information */
			save_state_information(FALSE);
			cleanup_retention_data(config_file);

			/* clean up performance data */
			cleanup_performance_data(config_file);

			/* clean up the scheduled downtime data */
			cleanup_downtime_data(config_file);

			/* clean up the comment data */
			cleanup_comment_data(config_file);

			/* clean up the status data unless we're restarting */
			if (sigrestart == FALSE)
				cleanup_status_data(config_file, TRUE);

			/* close and delete the external command file FIFO unless we're restarting */
			if (sigrestart == FALSE) {
				shutdown_command_file_worker_thread();
				close_command_file();
			}

			/* cleanup embedded perl interpreter */
			if (sigrestart == FALSE)
				deinit_embedded_perl();

			/* shutdown stuff... */
			if (sigshutdown == TRUE) {

				/* make sure lock file has been removed - it may not have been if we received a shutdown command */
				if (daemon_mode == TRUE)
					unlink(lock_file);

				/* log a shutdown message */
				logit(NSLOG_PROCESS_INFO, TRUE, "Successfully shutdown... (PID=%d)\n", (int)getpid());
			}

			/* clean up after ourselves */
			cleanup();

			/* close debug log */
			close_debug_log();

		} while (sigrestart == TRUE && sigshutdown == FALSE);

		/* free misc memory */
		my_free(config_file);
	}

	return OK;
}