contrib/check_uptime.c

   1 /******************************************************************************
   2  *
   3  * CHECK_UPTIME.C
   4  *
   5  * Program: Uptime plugin for Nagios
   6  * License: GPL
   7  * Copyright (c) 2000 Teresa Ramanan (teresa@redowl.org)
   8  *
   9  * Based on CHECK_LOAD.C
  10  * Copyright (c) 1999 Felipe Gustavo de Almeida <galmeida@linux.ime.usp.br>
  11  *
  12  * Last Modified: $Date: 2002-02-28 21:42:56 -0500 (Thu, 28 Feb 2002) $
  13  *
  14  * Command line: CHECK_UPTIME <host_address>
  15  *
  16  * Description:
  17  *
  18  * This plugin parses the output from "uptime", tokenizing it with ',' as the
  19  * delimiter. Returning only the number of days and/or the hours and minutes
  20  * a machine has been up and running.
  21  *
  22  *****************************************************************************/
  23
  24 #include "config.h"
  25 #include "common.h"
  26 #include "utils.h"
  27 #include "popen.h"
  28
  29 int main(int argc, char **argv)
  30 {
  31
  32   int result;
  33   char input_buffer[MAX_INPUT_BUFFER];
  34   int ct;
  35   int i;
  36   char *tok1 = NULL;
  37   char *daytok = NULL;
  38   char *hrmintok = NULL;
  39   char *runstr = NULL;
  40   char tempp;
  41   char ch;
  42   char delim[] = ",";
  43
  44   if(argc != 2){
  45     printf("Incorrect number of arguments supplied\n");
  46     printf("\n");
  47     print_revision(argv[0],"$Revision: 6 $");
  48     printf("Copyright (c) 2000 Teresa Ramanan (tlr@redowl.org)\n");
  49     printf("\n");
  50     printf("Usage: %s <host_address>\n",argv[0]);
  51     printf("\n");
  52     return STATE_UNKNOWN;
  53   }
  54
  55   child_process = spopen(PATH_TO_UPTIME);
  56   if(child_process==NULL){
  57       printf("Error opening %s\n",PATH_TO_UPTIME);
  58       return STATE_UNKNOWN;
  59   }
  60   child_stderr=fdopen(child_stderr_array[fileno(child_process)],"r");
  61   if(child_stderr==NULL){
  62     printf("Could not open stderr for %s\n",PATH_TO_UPTIME);
  63   }
  64   fgets(input_buffer,MAX_INPUT_BUFFER-1,child_process);
  65   i = 0;
  66   ct = 0;
  67
  68   /* Let's mark the end of this string for parsing purposes */
  69   input_buffer[strlen(input_buffer)-1]='\0';
  70
  71   tempp = input_buffer[0];
  72   while(ch != '\0'){
  73     ch = (&tempp)[i];
  74     if (ch == ',') { ct++; }
  75     i++;
  76   }
  77   runstr = input_buffer;
  78   tok1 = strsep(&runstr, delim);
  79   if (ct > 4) {
  80     hrmintok = strsep(&runstr, delim);
  81     hrmintok++;
  82     daytok = strstr(tok1,"up");
  83   }
  84   else {
  85     hrmintok = strstr(tok1, "up");
  86   }
  87
  88   result = spclose(child_process);
  89   if(result){
  90     printf("Error code %d returned in %s\n",result,PATH_TO_UPTIME);
  91     return STATE_UNKNOWN;
  92   }
  93   if (hrmintok == NULL) {
  94     printf("Problem - unexpected data returned\n");
  95     return STATE_UNKNOWN;
  96   }
  97   printf("%s%s%s\n",(daytok == NULL)?"":daytok,(daytok == NULL)?"":",",hrmintok);
  98   return STATE_OK;
  99 }