576 lines
17 KiB
C
576 lines
17 KiB
C
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/*****************************************************************************
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*
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* STATUSDATA.C - External status data for Nagios CGIs
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*
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* Copyright (c) 2000-2006 Ethan Galstad (egalstad@nagios.org)
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* Last Modified: 10-19-2006
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*
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* License:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*****************************************************************************/
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/*********** COMMON HEADER FILES ***********/
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#include "../include/config.h"
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#include "../include/common.h"
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#include "../include/objects.h"
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#include "../include/statusdata.h"
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#ifdef NSCORE
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#include "../include/nagios.h"
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#include "../include/broker.h"
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#endif
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#ifdef NSCGI
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#include "../include/cgiutils.h"
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#endif
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/**** IMPLEMENTATION SPECIFIC HEADER FILES ****/
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#ifdef USE_XSDDEFAULT
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#include "../xdata/xsddefault.h" /* default routines */
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#endif
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#ifdef NSCORE
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extern int aggregate_status_updates;
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#endif
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#ifdef NSCGI
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hoststatus *hoststatus_list = NULL;
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hoststatus *hoststatus_list_tail = NULL;
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servicestatus *servicestatus_list = NULL;
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servicestatus *servicestatus_list_tail = NULL;
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hoststatus **hoststatus_hashlist = NULL;
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servicestatus **servicestatus_hashlist = NULL;
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extern int use_pending_states;
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#endif
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#ifdef NSCORE
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/******************************************************************/
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/****************** TOP-LEVEL OUTPUT FUNCTIONS ********************/
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/******************************************************************/
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/* initializes status data at program start */
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int initialize_status_data(char *config_file) {
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int result = OK;
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/**** IMPLEMENTATION-SPECIFIC CALLS ****/
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#ifdef USE_XSDDEFAULT
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result = xsddefault_initialize_status_data(config_file);
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#endif
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return result;
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}
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/* update all status data (aggregated dump) */
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int update_all_status_data(void) {
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int result = OK;
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#ifdef USE_EVENT_BROKER
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/* send data to event broker */
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broker_aggregated_status_data(NEBTYPE_AGGREGATEDSTATUS_STARTDUMP, NEBFLAG_NONE, NEBATTR_NONE, NULL);
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#endif
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/**** IMPLEMENTATION-SPECIFIC CALLS ****/
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#ifdef USE_XSDDEFAULT
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result = xsddefault_save_status_data();
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#endif
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#ifdef USE_EVENT_BROKER
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/* send data to event broker */
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broker_aggregated_status_data(NEBTYPE_AGGREGATEDSTATUS_ENDDUMP, NEBFLAG_NONE, NEBATTR_NONE, NULL);
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#endif
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if(result != OK)
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return ERROR;
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return OK;
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}
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/* cleans up status data before program termination */
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int cleanup_status_data(char *config_file, int delete_status_data) {
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int result = OK;
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/**** IMPLEMENTATION-SPECIFIC CALLS ****/
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#ifdef USE_XSDDEFAULT
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result = xsddefault_cleanup_status_data(config_file, delete_status_data);
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#endif
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return result;
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}
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/* updates program status info */
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int update_program_status(int aggregated_dump) {
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#ifdef USE_EVENT_BROKER
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/* send data to event broker (non-aggregated dumps only) */
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if(aggregated_dump == FALSE)
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broker_program_status(NEBTYPE_PROGRAMSTATUS_UPDATE, NEBFLAG_NONE, NEBATTR_NONE, NULL);
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#endif
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/* currently a noop if aggregated updates is TRUE */
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/* update all status data if we're not aggregating updates */
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if(aggregate_status_updates == FALSE)
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update_all_status_data();
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return OK;
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}
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/* updates host status info */
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int update_host_status(host *hst, int aggregated_dump) {
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#ifdef USE_EVENT_BROKER
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/* send data to event broker (non-aggregated dumps only) */
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if(aggregated_dump == FALSE)
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broker_host_status(NEBTYPE_HOSTSTATUS_UPDATE, NEBFLAG_NONE, NEBATTR_NONE, hst, NULL);
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#endif
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/* currently a noop if aggregated updates is TRUE */
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/* update all status data if we're not aggregating updates */
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if(aggregate_status_updates == FALSE)
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update_all_status_data();
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return OK;
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}
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/* updates service status info */
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int update_service_status(service *svc, int aggregated_dump) {
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#ifdef USE_EVENT_BROKER
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/* send data to event broker (non-aggregated dumps only) */
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if(aggregated_dump == FALSE)
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broker_service_status(NEBTYPE_SERVICESTATUS_UPDATE, NEBFLAG_NONE, NEBATTR_NONE, svc, NULL);
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#endif
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/* currently a noop if aggregated updates is TRUE */
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/* update all status data if we're not aggregating updates */
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if(aggregate_status_updates == FALSE)
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update_all_status_data();
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return OK;
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}
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/* updates contact status info */
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int update_contact_status(contact *cntct, int aggregated_dump) {
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#ifdef USE_EVENT_BROKER
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/* send data to event broker (non-aggregated dumps only) */
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if(aggregated_dump == FALSE)
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broker_contact_status(NEBTYPE_CONTACTSTATUS_UPDATE, NEBFLAG_NONE, NEBATTR_NONE, cntct, NULL);
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#endif
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/* currently a noop if aggregated updates is TRUE */
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/* update all status data if we're not aggregating updates */
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if(aggregate_status_updates == FALSE)
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update_all_status_data();
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return OK;
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}
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#endif
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#ifdef NSCGI
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/******************************************************************/
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/******************* TOP-LEVEL INPUT FUNCTIONS ********************/
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/******************************************************************/
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/* reads in all status data */
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int read_status_data(char *config_file, int options) {
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int result = OK;
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/**** IMPLEMENTATION-SPECIFIC CALLS ****/
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#ifdef USE_XSDDEFAULT
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result = xsddefault_read_status_data(config_file, options);
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#endif
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#ifdef USE_XSDDB
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result = xsddb_read_status_data(config_file, options);
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#endif
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return result;
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}
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/******************************************************************/
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/****************** CHAINED HASH FUNCTIONS ************************/
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/******************************************************************/
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/* adds hoststatus to hash list in memory */
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int add_hoststatus_to_hashlist(hoststatus *new_hoststatus) {
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hoststatus *temp_hoststatus = NULL;
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hoststatus *lastpointer = NULL;
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int hashslot = 0;
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int i = 0;
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/* initialize hash list */
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if(hoststatus_hashlist == NULL) {
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hoststatus_hashlist = (hoststatus **)malloc(sizeof(hoststatus *) * HOSTSTATUS_HASHSLOTS);
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if(hoststatus_hashlist == NULL)
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return 0;
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for(i = 0; i < HOSTSTATUS_HASHSLOTS; i++)
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hoststatus_hashlist[i] = NULL;
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}
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if(!new_hoststatus)
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return 0;
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hashslot = hashfunc(new_hoststatus->host_name, NULL, HOSTSTATUS_HASHSLOTS);
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lastpointer = NULL;
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for(temp_hoststatus = hoststatus_hashlist[hashslot]; temp_hoststatus && compare_hashdata(temp_hoststatus->host_name, NULL, new_hoststatus->host_name, NULL) < 0; temp_hoststatus = temp_hoststatus->nexthash)
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lastpointer = temp_hoststatus;
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if(!temp_hoststatus || (compare_hashdata(temp_hoststatus->host_name, NULL, new_hoststatus->host_name, NULL) != 0)) {
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if(lastpointer)
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lastpointer->nexthash = new_hoststatus;
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else
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hoststatus_hashlist[hashslot] = new_hoststatus;
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new_hoststatus->nexthash = temp_hoststatus;
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return 1;
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}
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/* else already exists */
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return 0;
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}
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int add_servicestatus_to_hashlist(servicestatus *new_servicestatus) {
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servicestatus *temp_servicestatus = NULL, *lastpointer = NULL;
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int hashslot = 0;
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int i = 0;
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/* initialize hash list */
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if(servicestatus_hashlist == NULL) {
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servicestatus_hashlist = (servicestatus **)malloc(sizeof(servicestatus *) * SERVICESTATUS_HASHSLOTS);
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if(servicestatus_hashlist == NULL)
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return 0;
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for(i = 0; i < SERVICESTATUS_HASHSLOTS; i++)
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servicestatus_hashlist[i] = NULL;
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}
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if(!new_servicestatus)
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return 0;
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hashslot = hashfunc(new_servicestatus->host_name, new_servicestatus->description, SERVICESTATUS_HASHSLOTS);
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lastpointer = NULL;
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for(temp_servicestatus = servicestatus_hashlist[hashslot]; temp_servicestatus && compare_hashdata(temp_servicestatus->host_name, temp_servicestatus->description, new_servicestatus->host_name, new_servicestatus->description) < 0; temp_servicestatus = temp_servicestatus->nexthash)
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lastpointer = temp_servicestatus;
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if(!temp_servicestatus || (compare_hashdata(temp_servicestatus->host_name, temp_servicestatus->description, new_servicestatus->host_name, new_servicestatus->description) != 0)) {
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if(lastpointer)
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lastpointer->nexthash = new_servicestatus;
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else
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servicestatus_hashlist[hashslot] = new_servicestatus;
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new_servicestatus->nexthash = temp_servicestatus;
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return 1;
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}
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/* else already exists */
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return 0;
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}
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/******************************************************************/
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/********************** ADDITION FUNCTIONS ************************/
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/******************************************************************/
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/* adds a host status entry to the list in memory */
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int add_host_status(hoststatus *new_hoststatus) {
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char date_string[MAX_DATETIME_LENGTH];
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/* make sure we have what we need */
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if(new_hoststatus == NULL)
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return ERROR;
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if(new_hoststatus->host_name == NULL)
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return ERROR;
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/* massage host status a bit */
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if(new_hoststatus != NULL) {
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switch(new_hoststatus->status) {
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case 0:
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new_hoststatus->status = HOST_UP;
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break;
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case 1:
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new_hoststatus->status = HOST_DOWN;
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break;
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case 2:
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new_hoststatus->status = HOST_UNREACHABLE;
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break;
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default:
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new_hoststatus->status = HOST_UP;
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break;
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}
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if(new_hoststatus->has_been_checked == FALSE) {
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if(use_pending_states == TRUE)
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new_hoststatus->status = HOST_PENDING;
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my_free(new_hoststatus->plugin_output);
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if(new_hoststatus->should_be_scheduled == TRUE) {
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get_time_string(&new_hoststatus->next_check, date_string, sizeof(date_string), LONG_DATE_TIME);
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asprintf(&new_hoststatus->plugin_output, "Host check scheduled for %s", date_string);
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}
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else {
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/* passive-only hosts that have just been scheduled for a forced check */
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if(new_hoststatus->checks_enabled == FALSE && new_hoststatus->next_check != (time_t)0L && (new_hoststatus->check_options & CHECK_OPTION_FORCE_EXECUTION)) {
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get_time_string(&new_hoststatus->next_check, date_string, sizeof(date_string), LONG_DATE_TIME);
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asprintf(&new_hoststatus->plugin_output, "Forced host check scheduled for %s", date_string);
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}
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/* passive-only hosts not scheduled to be checked */
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else
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new_hoststatus->plugin_output = (char *)strdup("Host is not scheduled to be checked...");
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}
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}
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}
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new_hoststatus->next = NULL;
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new_hoststatus->nexthash = NULL;
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/* add new hoststatus to hoststatus chained hash list */
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if(!add_hoststatus_to_hashlist(new_hoststatus))
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return ERROR;
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/* object cache file is already sorted, so just add new items to end of list */
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if(hoststatus_list == NULL) {
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hoststatus_list = new_hoststatus;
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hoststatus_list_tail = new_hoststatus;
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}
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else {
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hoststatus_list_tail->next = new_hoststatus;
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hoststatus_list_tail = new_hoststatus;
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}
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return OK;
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}
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/* adds a service status entry to the list in memory */
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int add_service_status(servicestatus *new_svcstatus) {
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char date_string[MAX_DATETIME_LENGTH];
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/* make sure we have what we need */
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if(new_svcstatus == NULL)
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return ERROR;
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if(new_svcstatus->host_name == NULL || new_svcstatus->description == NULL)
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return ERROR;
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/* massage service status a bit */
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if(new_svcstatus != NULL) {
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switch(new_svcstatus->status) {
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case 0:
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new_svcstatus->status = SERVICE_OK;
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break;
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case 1:
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new_svcstatus->status = SERVICE_WARNING;
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break;
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case 2:
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new_svcstatus->status = SERVICE_CRITICAL;
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break;
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case 3:
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new_svcstatus->status = SERVICE_UNKNOWN;
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break;
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default:
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new_svcstatus->status = SERVICE_OK;
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break;
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}
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if(new_svcstatus->has_been_checked == FALSE) {
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if(use_pending_states == TRUE)
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new_svcstatus->status = SERVICE_PENDING;
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my_free(new_svcstatus->plugin_output);
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if(new_svcstatus->should_be_scheduled == TRUE) {
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get_time_string(&new_svcstatus->next_check, date_string, sizeof(date_string), LONG_DATE_TIME);
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asprintf(&new_svcstatus->plugin_output, "Service check scheduled for %s", date_string);
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}
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else {
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/* passive-only services that have just been scheduled for a forced check */
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if(new_svcstatus->checks_enabled == FALSE && new_svcstatus->next_check != (time_t)0L && (new_svcstatus->check_options & CHECK_OPTION_FORCE_EXECUTION)) {
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get_time_string(&new_svcstatus->next_check, date_string, sizeof(date_string), LONG_DATE_TIME);
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asprintf(&new_svcstatus->plugin_output, "Forced service check scheduled for %s", date_string);
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}
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/* passive-only services not scheduled to be checked */
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else
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new_svcstatus->plugin_output = (char *)strdup("Service is not scheduled to be checked...");
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}
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}
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}
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new_svcstatus->next = NULL;
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new_svcstatus->nexthash = NULL;
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/* add new servicestatus to servicestatus chained hash list */
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if(!add_servicestatus_to_hashlist(new_svcstatus))
|
||
|
return ERROR;
|
||
|
|
||
|
/* object cache file is already sorted, so just add new items to end of list */
|
||
|
if(servicestatus_list == NULL) {
|
||
|
servicestatus_list = new_svcstatus;
|
||
|
servicestatus_list_tail = new_svcstatus;
|
||
|
}
|
||
|
else {
|
||
|
servicestatus_list_tail->next = new_svcstatus;
|
||
|
servicestatus_list_tail = new_svcstatus;
|
||
|
}
|
||
|
|
||
|
return OK;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
/******************************************************************/
|
||
|
/*********************** CLEANUP FUNCTIONS ************************/
|
||
|
/******************************************************************/
|
||
|
|
||
|
|
||
|
/* free all memory for status data */
|
||
|
void free_status_data(void) {
|
||
|
hoststatus *this_hoststatus = NULL;
|
||
|
hoststatus *next_hoststatus = NULL;
|
||
|
servicestatus *this_svcstatus = NULL;
|
||
|
servicestatus *next_svcstatus = NULL;
|
||
|
|
||
|
/* free memory for the host status list */
|
||
|
for(this_hoststatus = hoststatus_list; this_hoststatus != NULL; this_hoststatus = next_hoststatus) {
|
||
|
next_hoststatus = this_hoststatus->next;
|
||
|
my_free(this_hoststatus->host_name);
|
||
|
my_free(this_hoststatus->plugin_output);
|
||
|
my_free(this_hoststatus->long_plugin_output);
|
||
|
my_free(this_hoststatus->perf_data);
|
||
|
my_free(this_hoststatus);
|
||
|
}
|
||
|
|
||
|
/* free memory for the service status list */
|
||
|
for(this_svcstatus = servicestatus_list; this_svcstatus != NULL; this_svcstatus = next_svcstatus) {
|
||
|
next_svcstatus = this_svcstatus->next;
|
||
|
my_free(this_svcstatus->host_name);
|
||
|
my_free(this_svcstatus->description);
|
||
|
my_free(this_svcstatus->plugin_output);
|
||
|
my_free(this_svcstatus->long_plugin_output);
|
||
|
my_free(this_svcstatus->perf_data);
|
||
|
my_free(this_svcstatus);
|
||
|
}
|
||
|
|
||
|
/* free hash lists reset list pointers */
|
||
|
my_free(hoststatus_hashlist);
|
||
|
my_free(servicestatus_hashlist);
|
||
|
hoststatus_list = NULL;
|
||
|
servicestatus_list = NULL;
|
||
|
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
/******************************************************************/
|
||
|
/************************ SEARCH FUNCTIONS ************************/
|
||
|
/******************************************************************/
|
||
|
|
||
|
|
||
|
/* find a host status entry */
|
||
|
hoststatus *find_hoststatus(char *host_name) {
|
||
|
hoststatus *temp_hoststatus = NULL;
|
||
|
|
||
|
if(host_name == NULL || hoststatus_hashlist == NULL)
|
||
|
return NULL;
|
||
|
|
||
|
for(temp_hoststatus = hoststatus_hashlist[hashfunc(host_name, NULL, HOSTSTATUS_HASHSLOTS)]; temp_hoststatus && compare_hashdata(temp_hoststatus->host_name, NULL, host_name, NULL) < 0; temp_hoststatus = temp_hoststatus->nexthash);
|
||
|
|
||
|
if(temp_hoststatus && (compare_hashdata(temp_hoststatus->host_name, NULL, host_name, NULL) == 0))
|
||
|
return temp_hoststatus;
|
||
|
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
|
||
|
/* find a service status entry */
|
||
|
servicestatus *find_servicestatus(char *host_name, char *svc_desc) {
|
||
|
servicestatus *temp_servicestatus = NULL;
|
||
|
|
||
|
if(host_name == NULL || svc_desc == NULL || servicestatus_hashlist == NULL)
|
||
|
return NULL;
|
||
|
|
||
|
for(temp_servicestatus = servicestatus_hashlist[hashfunc(host_name, svc_desc, SERVICESTATUS_HASHSLOTS)]; temp_servicestatus && compare_hashdata(temp_servicestatus->host_name, temp_servicestatus->description, host_name, svc_desc) < 0; temp_servicestatus = temp_servicestatus->nexthash);
|
||
|
|
||
|
if(temp_servicestatus && (compare_hashdata(temp_servicestatus->host_name, temp_servicestatus->description, host_name, svc_desc) == 0))
|
||
|
return temp_servicestatus;
|
||
|
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
/******************************************************************/
|
||
|
/*********************** UTILITY FUNCTIONS ************************/
|
||
|
/******************************************************************/
|
||
|
|
||
|
|
||
|
/* gets the total number of services of a certain state for a specific host */
|
||
|
int get_servicestatus_count(char *host_name, int type) {
|
||
|
servicestatus *temp_status = NULL;
|
||
|
int count = 0;
|
||
|
|
||
|
if(host_name == NULL)
|
||
|
return 0;
|
||
|
|
||
|
for(temp_status = servicestatus_list; temp_status != NULL; temp_status = temp_status->next) {
|
||
|
if(temp_status->status & type) {
|
||
|
if(!strcmp(host_name, temp_status->host_name))
|
||
|
count++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return count;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
#endif
|
||
|
|