plugins/check_cluster.c

   1 /*****************************************************************************
   2  *
   3  * CHECK_CLUSTER2.C - Host and Service Cluster Plugin for Nagios 2.x
   4  *
   5  * Copyright (c) 2000-2004 Ethan Galstad (nagios@nagios.org)
   6  * Copyright (c) 2007 nagios-plugins team
   7  * License: GPL
   8  * Last Modified: $Date$
   9  *
  10  * License Information:
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  * $Id$
  27  *
  28 ******************************************************************************/
  29
  30 const char *progname = "check_cluster";
  31 const char *revision = "$Revision$";
  32 const char *copyright = "2000-2007";
  33 const char *email = "nagiosplug-devel@lists.sourceforge.net";
  34
  35 #include "common.h"
  36 #include "utils.h"
  37
  38 #define CHECK_SERVICES  1
  39 #define CHECK_HOSTS     2
  40
  41 int total_services_ok=0;
  42 int total_services_warning=0;
  43 int total_services_unknown=0;
  44 int total_services_critical=0;
  45
  46 int total_hosts_up=0;
  47 int total_hosts_down=0;
  48 int total_hosts_unreachable=0;
  49
  50 char *warn_threshold;
  51 char *crit_threshold;
  52
  53 int check_type=CHECK_SERVICES;
  54
  55 char *data_vals=NULL;
  56 char *label=NULL;
  57
  58 int verbose=0;
  59
  60 int process_arguments(int,char **);
  61
  62
  63
  64 int main(int argc, char **argv){
  65         char input_buffer[MAX_INPUT_BUFFER];
  66         char *ptr;
  67         int data_val;
  68         int return_code=STATE_OK;
  69         int error=FALSE;
  70         thresholds *thresholds;
  71
  72         if(process_arguments(argc,argv)==ERROR)
  73                 usage(_("Could not parse arguments"));
  74
  75         /* Initialize the thresholds */
  76         set_thresholds(&thresholds, warn_threshold, crit_threshold);
  77         if(verbose)
  78                 print_thresholds("check_cluster", thresholds);
  79
  80         /* check the data values */
  81         for(ptr=strtok(data_vals,",");ptr!=NULL;ptr=strtok(NULL,",")){
  82
  83                 data_val=atoi(ptr);
  84
  85                 if(check_type==CHECK_SERVICES){
  86                         switch(data_val){
  87                         case 0:
  88                                 total_services_ok++;
  89                                 break;
  90                         case 1:
  91                                 total_services_warning++;
  92                                 break;
  93                         case 2:
  94                                 total_services_critical++;
  95                                 break;
  96                         case 3:
  97                                 total_services_unknown++;
  98                                 break;
  99                         default:
 100                                 break;
 101                                 }
 102                         }
 103                 else{
 104                         switch(data_val){
 105                         case 0:
 106                                 total_hosts_up++;
 107                                 break;
 108                         case 1:
 109                                 total_hosts_down++;
 110                                 break;
 111                         case 2:
 112                                 total_hosts_unreachable++;
 113                                 break;
 114                         default:
 115                                 break;
 116                                 }
 117                         }
 118                 }
 119
 120
 121         /* return the status of the cluster */
 122         if(check_type==CHECK_SERVICES){
 123                 return_code=get_status(total_services_warning+total_services_unknown+total_services_critical, thresholds);
 124                 printf("CLUSTER %s: %s: %d ok, %d warning, %d unknown, %d critical\n",
 125                         state_text(return_code), (label==NULL)?"Service cluster":label,
 126                         total_services_ok,total_services_warning,
 127                         total_services_unknown,total_services_critical);
 128                 }
 129         else{
 130                 return_code=get_status(total_hosts_down+total_hosts_unreachable, thresholds);
 131                 printf("CLUSTER %s: %s: %d up, %d down, %d unreachable\n",
 132                         state_text(return_code), (label==NULL)?"Host cluster":label,
 133                         total_hosts_up,total_hosts_down,total_hosts_unreachable);
 134                 }
 135
 136         return return_code;
 137         }
 138
 139
 140
 141 int process_arguments(int argc, char **argv){
 142         int c;
 143         int option=0;
 144         static struct option longopts[]={
 145                 {"data",     required_argument,0,'d'},
 146                 {"warning",  required_argument,0,'w'},
 147                 {"critical", required_argument,0,'c'},
 148                 {"label",    required_argument,0,'l'},
 149                 {"host",     no_argument,      0,'h'},
 150                 {"service",  no_argument,      0,'s'},
 151                 {"verbose",  no_argument,      0,'v'},
 152                 {"help",     no_argument,      0,'H'},
 153                 {0,0,0,0}
 154                 };
 155
 156         /* no options were supplied */
 157         if(argc<2)
 158                 return ERROR;
 159
 160         while(1){
 161
 162                 c=getopt_long(argc,argv,"hHsvw:c:d:l:",longopts,&option);
 163
 164                 if(c==-1 || c==EOF || c==1)
 165                         break;
 166
 167                 switch(c){
 168
 169                 case 'h': /* host cluster */
 170                         check_type=CHECK_HOSTS;
 171                         break;
 172
 173                 case 's': /* service cluster */
 174                         check_type=CHECK_SERVICES;
 175                         break;
 176
 177                 case 'w': /* warning threshold */
 178                         if (strspn (optarg, "0123456789:,") < strlen (optarg))
 179                                 usage2 (_("Invalid warning threshold: %s\n"), optarg);
 180                         warn_threshold = strdup(optarg);
 181                         break;
 182
 183                 case 'c': /* warning threshold */
 184                         if (strspn (optarg, "0123456789:,") < strlen (optarg))
 185                                 usage2 (_("Invalid critical threshold: %s\n"), optarg);
 186                         crit_threshold = strdup(optarg);
 187                         break;
 188
 189                 case 'd': /* data values */
 190                         data_vals=(char *)strdup(optarg);
 191                         break;
 192
 193                 case 'l': /* text label */
 194                         label=(char *)strdup(optarg);
 195                         break;
 196
 197                 case 'v': /* verbose */
 198                         verbose++;
 199                         break;
 200
 201                 case 'H': /* help */
 202                         print_help();
 203                         exit(STATE_UNKNOWN);
 204                         break;
 205
 206                 default:
 207                         return ERROR;
 208                         break;
 209                         }
 210                 }
 211
 212         if(data_vals==NULL)
 213                 return ERROR;
 214
 215         return OK;
 216 }
 217
 218 void
 219 print_help(void)
 220 {
 221         print_revision(progname, revision);
 222         printf(COPYRIGHT, copyright, email);
 223
 224         printf("%s\n", _("Host/Service Cluster Plugin for Nagios 2"));
 225
 226         print_usage();
 227
 228
 229         printf("%s\n", _("Options:"));
 230         printf (" %s\n", "-s, --service");
 231         printf ("    %s\n", _("Check service cluster status"));
 232         printf (" %s\n", "-h, --host");
 233         printf ("    %s\n", _("Check host cluster status"));
 234         printf (" %s\n", "-l, --label=STRING");
 235         printf ("    %s\n", _("Optional prepended text output (i.e. \"Host cluster\")"));
 236         printf (" %s\n", "-w, --warning=THRESHOLD");
 237         printf ("    %s\n", _("Specifies the range of hosts or services in cluster that must be in a"));
 238         printf ("    %s\n", _("non-OK state in order to return a WARNING status level"));
 239         printf (" %s\n", "-c, --critical=THRESHOLD");
 240         printf ("    %s\n", _("Specifies the range of hosts or services in cluster that must be in a"));
 241         printf ("    %s\n", _(" non-OK state in order to return a CRITICAL status level"));
 242         printf (" %s\n", "-d, --data=LIST");
 243         printf ("    %s\n", _("The status codes of the hosts or services in the cluster, separated by"));
 244         printf ("    %s\n", _("commas"));
 245
 246         printf(_(UT_VERBOSE));
 247
 248         printf("\n");
 249         printf("%s\n", _("Notes:"));
 250         printf(" %s\n", _("See:"));
 251         printf(" %s\n", _("http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT"));
 252         printf(" %s\n", _("for THRESHOLD format and examples."));
 253
 254         printf(_(UT_SUPPORT));
 255         printf("\n");
 256 }
 257
 258
 259 void
 260 print_usage(void)
 261 {
 262
 263         printf("\n");
 264         printf(_("Usage:"));
 265         printf(" %s (-s | -h) -d val1[,val2,...,valn] [-l label]\n", progname);
 266         printf("[-w threshold] [-c threshold] [-v] [--help]\n");
 267         printf("\n");
 268
 269 }
 270
 271 #if 0
 272 #endif
 273