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