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https://github.com/monitoring-plugins/monitoring-plugins.git
synced 2026-06-11 09:40:05 -04:00
this plugin is in core as check_fping
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@304 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Karl DeBisschop
parent
e888639314
commit
74beab35ad
1 changed files with 0 additions and 430 deletions
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/******************************************************************************
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*
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* CHECK_INET_FPING.C
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*
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* Program: Fping plugin for Nagios
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* License: GPL
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* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
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* $Id$
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*
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* Modifications:
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*
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* 08-24-1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
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* Intial Coding
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* 09-11-1999 Karl DeBisschop (kdebiss@alum.mit.edu)
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* Change to spopen
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* Fix so that state unknown is returned by default
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* (formerly would give state ok if no fping specified)
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* Add server_name to output
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* Reformat to 80-character standard screen
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* 11-18-1999 Karl DeBisschop (kdebiss@alum.mit.edu)
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* set STATE_WARNING of stderr written or nonzero status returned
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* 09-29-2000 Matthew Grant (matthewg@plain.co.nz)
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* changes for monitoring multiple hosts for checking Internet
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* reachibility
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*
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* Description:
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*
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* This plugin will use the /bin/fping command (from nagios) to ping
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* the specified host for a fast check if the host is alive. Note that
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* it is necessary to set the suid flag on fping.
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******************************************************************************/
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#include "config.h"
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#include "common.h"
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#include "popen.h"
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#include "utils.h"
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const char *progname = "check_fping_in";
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#define PACKET_COUNT 15
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#define PACKET_SIZE 56
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#define CRITICAL_COUNT 2
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#define WARNING_COUNT 1
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#define UNKNOWN_PACKET_LOSS 200 /* 200% */
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#define UNKNOWN_TRIP_TIME -1.0 /* -1 seconds */
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#define STRSZ 100
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int textscan(char *buf);
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int process_arguments(int, char **);
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int get_threshold (char *arg, char *rv[2]);
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void print_usage(void);
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void print_help(void);
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char *server_names=NULL;
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char *name="INTERNET";
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int cthresh=CRITICAL_COUNT;
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int wthresh=WARNING_COUNT;
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int nnames=0;
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int tpl=UNKNOWN_PACKET_LOSS;
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double trta=UNKNOWN_TRIP_TIME;
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int packet_size=PACKET_SIZE;
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int packet_count=PACKET_COUNT;
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int verbose=FALSE;
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int fail = 0;
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int not_found = 0;
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int rta_fail = 0;
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int pl_fail = 0;
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int unreachable = 0;
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int main(int argc, char **argv){
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int result;
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int status=STATE_UNKNOWN;
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char *servers=NULL;
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char *command_line=NULL;
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char *input_buffer=NULL;
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char *pl_buffer=NULL;
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char *rta_buffer=NULL;
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input_buffer=malloc(MAX_INPUT_BUFFER);
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rta_buffer = malloc(80);
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pl_buffer = malloc(80);
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memset(rta_buffer, 0, 80);
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memset(pl_buffer, 0, 80);
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if(process_arguments(argc,argv)==ERROR)
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usage("Could not parse arguments\n");
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servers=strscpy(servers,server_names);
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/* compose the command */
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command_line=ssprintf
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(command_line,"%s -b %d -c %d %s",
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PATH_TO_FPING,
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packet_size,
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packet_count,
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servers);
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if (verbose) printf("%s\n",command_line);
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/* run the command */
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child_process=spopen(command_line);
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if(child_process==NULL){
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printf("Unable to open pipe: %s\n",command_line);
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return STATE_UNKNOWN;
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}
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child_stderr=fdopen(child_stderr_array[fileno(child_process)],"r");
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if(child_stderr==NULL){
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printf("Could not open stderr for %s\n",command_line);
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}
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while (fgets(input_buffer,MAX_INPUT_BUFFER-1,child_process)) {
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if (verbose) printf("%s",input_buffer);
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result = textscan(input_buffer);
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status = max(status,result);
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}
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while(fgets(input_buffer,MAX_INPUT_BUFFER-1,child_stderr)) {
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if (verbose) printf("%s",input_buffer);
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result = textscan(input_buffer);
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status = max(status,result);
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}
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(void)fclose(child_stderr);
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/* close the pipe */
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if(spclose(child_process))
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status=max(status,STATE_WARNING);
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/* Analyse fail count and produce results */
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if (fail >= wthresh) {
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status = max(status, STATE_WARNING);
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}
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if (fail >= cthresh) {
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status = max(status, STATE_CRITICAL);
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}
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if( tpl != UNKNOWN_PACKET_LOSS ) {
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snprintf(pl_buffer, 80, ", %d PL", pl_fail);
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}
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if( trta != UNKNOWN_TRIP_TIME ) {
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snprintf(rta_buffer, 80, ", %d RTA", rta_fail);
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}
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printf("FPING %s - %s, %d of %d fail, %d NF, %d UR%s%s\n",
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state_text(status),
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(name != NULL ? name : server_names),
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fail,
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nnames,
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not_found,
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unreachable,
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pl_buffer,
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rta_buffer);
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return status;
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}
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/* analyse fping output - each event resulting in an increment of fail
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* must be mutually exclusive. packet loss and round trip time analysed
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* together, both at once just results in one increment of fail
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*/
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int textscan(char *buf)
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{
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char *rtastr=NULL;
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char *losstr=NULL;
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double loss;
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double rta;
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int status=STATE_OK;
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if (strstr(buf,"not found")) {
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fail++;
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not_found++;
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} else if(strstr(buf,"xmt/rcv/%loss")
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&& strstr(buf,"min/avg/max")) {
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losstr = strstr(buf,"=");
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losstr = 1+strstr(losstr,"/");
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losstr = 1+strstr(losstr,"/");
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rtastr = strstr(buf,"min/avg/max");
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rtastr = strstr(rtastr,"=");
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rtastr = 1+index(rtastr,'/');
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loss = strtod(losstr,NULL);
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rta = strtod(rtastr,NULL);
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/* Increment fail counter
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*/
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if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl) {
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fail++;
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}
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else if (trta!=UNKNOWN_TRIP_TIME && rta>trta) {
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fail++;
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}
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else if (loss >= 100) {
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fail++;
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}
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/* Increment other counters
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*/
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if (trta!=UNKNOWN_TRIP_TIME && rta>trta)
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rta_fail++;
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if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl)
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pl_fail++;
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if (loss >= 100)
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unreachable++;
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} else if(strstr(buf,"xmt/rcv/%loss") ) {
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losstr = strstr(buf,"=");
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losstr = 1+strstr(losstr,"/");
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losstr = 1+strstr(losstr,"/");
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loss = strtod(losstr,NULL);
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/* Increment fail counter
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*/
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if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl) {
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fail++;
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}
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else if (loss >= 100) {
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fail++;
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}
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/* Increment other counters
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*/
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if (tpl!=UNKNOWN_PACKET_LOSS && loss>tpl)
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pl_fail++;
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if (loss >= 100)
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unreachable++;
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}
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return status;
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}
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/* process command-line arguments */
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int process_arguments(int argc, char **argv)
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{
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int c;
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#ifdef HAVE_GETOPT_H
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int option_index = 0;
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static struct option long_options[] =
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{
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{"hostname" ,required_argument,0,'H'},
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{"critical" ,required_argument,0,'c'},
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{"warning" ,required_argument,0,'w'},
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{"bytes" ,required_argument,0,'b'},
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{"number" ,required_argument,0,'n'},
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{"pl-threshold" ,required_argument,0,'p'},
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{"rta-threshold" ,required_argument,0,'r'},
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{"name" ,required_argument,0,'N'},
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{"verbose" ,no_argument, 0,'v'},
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{"version" ,no_argument, 0,'V'},
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{"help" ,no_argument, 0,'h'},
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{0,0,0,0}
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};
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#else
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if(argc<2) return ERROR;
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if (!is_option(argv[1])){
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server_names=argv[1];
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argv[1]=argv[0];
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argv=&argv[1];
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argc--;
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}
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#endif
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while (1){
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#ifdef HAVE_GETOPT_H
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c = getopt_long(argc,argv,"+hVvH:c:w:b:n:N:p:r:",long_options,&option_index);
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#else
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c = getopt(argc,argv,"+hVvH:c:w:b:n:N:p:r:");
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#endif
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if (c==-1||c==EOF||c==1)
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break;
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switch (c)
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{
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case '?': /* print short usage statement if args not parsable */
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printf("%s: Unknown argument: %s\n\n",my_basename(argv[0]),optarg);
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print_usage();
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exit(STATE_UNKNOWN);
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case 'h': /* help */
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print_help();
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exit(STATE_OK);
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case 'V': /* version */
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print_revision(my_basename(argv[0]),"$Revision$");
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exit(STATE_OK);
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case 'v': /* verbose mode */
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verbose=TRUE;
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break;
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case 'H': /* hostname */
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if(is_host(optarg)==FALSE){
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printf("Invalid host name/address\n\n");
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print_usage();
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exit(STATE_UNKNOWN);
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}
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if (server_names != NULL)
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server_names=strscat(server_names," ");
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server_names=strscat(server_names,optarg);
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nnames++;
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break;
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case 'c':
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if (is_intpos(optarg))
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cthresh = atoi(optarg);
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else
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usage("Critical threshold must be a positive integer");
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break;
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case 'w':
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if (is_intpos(optarg))
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wthresh = atoi(optarg);
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else
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usage("Warning threshold must be a postive integer");
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break;
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case 'r':
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if (is_intpos(optarg)) {
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trta=strtod(optarg,NULL);
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}
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else {
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usage("RTA threshold must be a positive integer");
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}
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break;
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case 'p':
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if (is_intpos(optarg)) {
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tpl=strtod(optarg,NULL);
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}
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else {
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usage("RTA threshold must be a positive integer");
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}
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break;
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case 'b': /* bytes per packet */
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if (is_intpos(optarg))
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packet_size=atoi(optarg);
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else
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usage("Packet size must be a positive integer");
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break;
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case 'N': /* Name of service */
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name = optarg;
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break;
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case 'n': /* number of packets */
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if (is_intpos(optarg))
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packet_count=atoi(optarg);
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else
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usage("Packet count must be a positive integer");
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break;
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}
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}
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while (optind < argc) {
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if(is_host(argv[optind])==FALSE) {
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printf("Invalid host name/address\n\n");
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print_usage();
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exit(STATE_UNKNOWN);
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}
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if (server_names != NULL)
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server_names=strscat(server_names," ");
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server_names=strscat(server_names,argv[optind]);
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nnames++;
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optind++;
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}
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if (server_names==NULL || nnames < 2)
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usage("At least 2 hostnames must be supplied\n\n");
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if (cthresh < 2)
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usage("Critical threshold must be at least 2");
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if (cthresh > nnames)
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usage("Critical threshold cannot be greater than number of hosts tested");
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if (wthresh < 1)
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usage("Warning threshold must be at least 1");
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if (wthresh > nnames)
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usage("Warning threshold cannot be greater than number of hosts tested");
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if(wthresh >= cthresh)
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usage("Warning threshold must be less than the critical threshold");
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return OK;
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}
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void print_usage(void)
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{
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printf("Usage: %s <host_address> <host_address> [<host_address>] ...\n",progname);
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}
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void print_help(void)
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{
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print_revision(progname,"$Revision$");
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printf
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("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n"
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" (c) 2000 Matthew Grant (matthewg@plain.co.nz)\n"
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"This plugin will use the /bin/fping command (from saint) to ping the\n"
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"specified hosts for a fast check to see if the Internet is still \n"
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"reachable, and the results of the testing aggregated. Note that it\n"
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"is necessary to set the suid flag on fping.\n\n");
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print_usage();
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printf
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("\nOptions:\n"
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"-b, --bytes=INTEGER\n"
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" Size of ICMP packet (default: %d)\n"
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"-c, --critical=INTEGER (default: %d)\n"
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" critical threshold failure count\n"
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"-n, --number=INTEGER\n"
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" Number of ICMP packets to send (default: %d)\n"
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"-H, --hostname=HOST\n"
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" Name or IP Address of host to ping (IP Address bypasses name lookup,\n"
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" reducing system load)\n"
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"-h, --help\n"
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" Print this help screen\n"
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"-N, --name\n"
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" Service name to print in results, defaults to INTERNET\n"
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"-p, --pl-threshold\n"
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" Packet loss threshold - specify to turn on packet loss testing\n"
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"-r, --rta-threshold\n"
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" Round trip average threshold - specify to turn on RTA testing\n"
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"-V, --version\n"
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" Print version information\n"
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"-v, --verbose\n"
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" Show details for command-line debugging (do not use with nagios server)\n"
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"-w, --warning=INTEGER (default: %d)\n"
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" warning threshold failure count\n",
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PACKET_SIZE, CRITICAL_COUNT, PACKET_COUNT, WARNING_COUNT);
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}
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