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check_cluster.c

/*****************************************************************************
* 
* check_cluster.c - Host and Service Cluster Plugin for Nagios 2.x
* 
* License: GPL
* Copyright (c) 2000-2004 Ethan Galstad (nagios@nagios.org)
* Copyright (c) 2007 Nagios Plugins Development Team
* 
* Last Modified: $Date: 2008-05-07 11:02:42 +0100 (Wed, 07 May 2008) $
* 
* 
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
* 
* $Id: check_cluster.c 1991 2008-05-07 10:02:42Z dermoth $
* 
*****************************************************************************/

const char *progname = "check_cluster";
const char *revision = "$Revision: 1991 $";
const char *copyright = "2000-2007";
const char *email = "nagiosplug-devel@lists.sourceforge.net";

#include "common.h"
#include "utils.h"
#include "utils_base.h"

#define CHECK_SERVICES  1
#define CHECK_HOSTS     2

void print_help (void);
void print_usage (void);

int total_services_ok=0;
int total_services_warning=0;
int total_services_unknown=0;
int total_services_critical=0;

int total_hosts_up=0;
int total_hosts_down=0;
int total_hosts_unreachable=0;

char *warn_threshold;
char *crit_threshold;

int check_type=CHECK_SERVICES;

char *data_vals=NULL;
char *label=NULL;

int verbose=0;

int process_arguments(int,char **);



int main(int argc, char **argv){
      char *ptr;
      int data_val;
      int return_code=STATE_OK;
      thresholds *thresholds = NULL;

      setlocale (LC_ALL, "");
      bindtextdomain (PACKAGE, LOCALEDIR);
      textdomain (PACKAGE);

      /* Parse extra opts if any */
      argv=np_extra_opts(&argc, argv, progname);

      if(process_arguments(argc,argv)==ERROR)
            usage(_("Could not parse arguments"));

      /* Initialize the thresholds */
      set_thresholds(&thresholds, warn_threshold, crit_threshold);
      if(verbose)
            print_thresholds("check_cluster", thresholds);

      /* check the data values */
      for(ptr=strtok(data_vals,",");ptr!=NULL;ptr=strtok(NULL,",")){

            data_val=atoi(ptr);

            if(check_type==CHECK_SERVICES){
                  switch(data_val){
                  case 0:
                        total_services_ok++;
                        break;
                  case 1:
                        total_services_warning++;
                        break;
                  case 2:
                        total_services_critical++;
                        break;
                  case 3:
                        total_services_unknown++;
                        break;
                  default:
                        break;
                    }
              }
            else{
                  switch(data_val){
                  case 0:
                        total_hosts_up++;
                        break;
                  case 1:
                        total_hosts_down++;
                        break;
                  case 2:
                        total_hosts_unreachable++;
                        break;
                  default:
                        break;
                    }
              }
        }
      

      /* return the status of the cluster */
      if(check_type==CHECK_SERVICES){
            return_code=get_status(total_services_warning+total_services_unknown+total_services_critical, thresholds);
            printf("CLUSTER %s: %s: %d ok, %d warning, %d unknown, %d critical\n",
                  state_text(return_code), (label==NULL)?"Service cluster":label,
                  total_services_ok,total_services_warning,
                  total_services_unknown,total_services_critical);
      }
      else{
            return_code=get_status(total_hosts_down+total_hosts_unreachable, thresholds);
            printf("CLUSTER %s: %s: %d up, %d down, %d unreachable\n",
                  state_text(return_code), (label==NULL)?"Host cluster":label,
                  total_hosts_up,total_hosts_down,total_hosts_unreachable);
      }

      return return_code;
}



int process_arguments(int argc, char **argv){
      int c;
      int option=0;
      static struct option longopts[]={ 
            {"data",     required_argument,0,'d'},
            {"warning",  required_argument,0,'w'},
            {"critical", required_argument,0,'c'},
            {"label",    required_argument,0,'l'},
            {"host",     no_argument,      0,'h'},
            {"service",  no_argument,      0,'s'},
            {"verbose",  no_argument,      0,'v'},
            {"version",  no_argument,      0,'V'},
            {"help",     no_argument,      0,'H'},
            {0,0,0,0}
      };

      /* no options were supplied */
      if(argc<2)
            return ERROR;

      while(1){

            c=getopt_long(argc,argv,"hHsvVw:c:d:l:",longopts,&option);

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

            switch(c){

            case 'h': /* host cluster */
                  check_type=CHECK_HOSTS;
                  break;

            case 's': /* service cluster */
                  check_type=CHECK_SERVICES;
                  break;

            case 'w': /* warning threshold */
                  warn_threshold = strdup(optarg);
                  break;

            case 'c': /* warning threshold */
                  crit_threshold = strdup(optarg);
                  break;

            case 'd': /* data values */
                  data_vals=(char *)strdup(optarg);
                  break;

            case 'l': /* text label */
                  label=(char *)strdup(optarg);
                  break;

            case 'v': /* verbose */
                  verbose++;
                  break;

            case 'V': /* version */
                  print_revision (progname, revision);
                  exit (STATE_OK);
                  break;

            case 'H': /* help */
                  print_help();
                  exit(STATE_UNKNOWN);
                  break;

            default:
                  return ERROR;
                  break;
              }
      }

      if(data_vals==NULL)
            return ERROR;

      return OK;
}

void
print_help(void)
{
      print_revision(progname, revision);
      printf ("Copyright (c) 2000-2004 Ethan Galstad (nagios@nagios.org)\n");
      printf(COPYRIGHT, copyright, email);

      printf(_("Host/Service Cluster Plugin for Nagios 2"));
      printf("\n\n");

      print_usage();

      printf("\n");
      printf("%s\n", _("Options:"));
      printf(_(UT_EXTRA_OPTS));
      printf (" %s\n", "-s, --service");
      printf ("    %s\n", _("Check service cluster status"));
      printf (" %s\n", "-h, --host");
      printf ("    %s\n", _("Check host cluster status"));
      printf (" %s\n", "-l, --label=STRING");
      printf ("    %s\n", _("Optional prepended text output (i.e. \"Host cluster\")"));
      printf (" %s\n", "-w, --warning=THRESHOLD");
      printf ("    %s\n", _("Specifies the range of hosts or services in cluster that must be in a"));
      printf ("    %s\n", _("non-OK state in order to return a WARNING status level"));
      printf (" %s\n", "-c, --critical=THRESHOLD");
      printf ("    %s\n", _("Specifies the range of hosts or services in cluster that must be in a"));
      printf ("    %s\n", _("non-OK state in order to return a CRITICAL status level"));
      printf (" %s\n", "-d, --data=LIST");
      printf ("    %s\n", _("The status codes of the hosts or services in the cluster, separated by"));
      printf ("    %s\n", _("commas"));

      printf(_(UT_VERBOSE));

      printf("\n");
      printf("%s\n", _("Notes:"));
      printf(_(UT_THRESHOLDS_NOTES));
#ifdef NP_EXTRA_OPTS
      printf ("\n");
      printf (_(UT_EXTRA_OPTS_NOTES));
#endif

      printf(_(UT_SUPPORT));
}


void
print_usage(void)
{

      printf(_("Usage:"));
      printf(" %s (-s | -h) -d val1[,val2,...,valn] [-l label]\n", progname);
      printf("[-w threshold] [-c threshold] [-v] [--help]\n");

}


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