39 lines
986 B
JavaScript
39 lines
986 B
JavaScript
var util = require('util');
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var EventEmitter = require('events').EventEmitter;
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var exec = require('child_process').exec
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var IpPoll = function(switchaddr, hostsaddr) {
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var self = this;
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var regexp = /\(([0-9]+) hosts* up\)/;
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var nmap = "nmap -n -sP -T5 --host-timeout 10ms ";
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this.pollCount = function() {
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exec(nmap + "--min-hostgroup 10 " + hostsaddr, function (error, stdout, stderr) {
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if(error == null) {
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var matches = regexp.exec(stdout);
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if(matches != null && matches.length == 2) {
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self.emit('doneCount', parseInt(matches[1]));
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}
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}
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});
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}
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this.pollState = function() {
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exec(nmap + switchaddr, function (error, stdout, stderr) {
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if(error == null) {
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var matches = regexp.exec(stdout);
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if(matches != null && matches.length == 2) {
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self.emit('doneState', matches[1] == "1");
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}
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} else {
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self.emit('doneState', "unknown");
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}
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});
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}
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}
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util.inherits(IpPoll, EventEmitter);
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module.exports = IpPoll;
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