1. module getmac
   1. function getmac.getMac (opts, next)
   2. function getmac.isMac (macAddress)
   3. object getmac.macRegex

module getmac

function getmac.getMac (opts, next)

• description and source-code

  getMac = function (opts, next) {
    var command, data, extractMac, ref;
    ref = extractOptsAndCallback(opts, next), opts = ref[0], next = ref[1];
    data = opts.data;
    if (data == null) {
      data = null;
    }
    command = isWindows ? "getmac" : "ifconfig -a || ip link";
    extractMac = function(data, next) {
      var err, isZero, macAddress, match, result;
      result = null;
      while (match = macRegex.exec(data)) {
        macAddress = match[0];
        isZero = zeroRegex.test(macAddress);
        if (isZero === false) {
          if (result == null) {
            result = macAddress;
          }
        }
      }
      if (result === null) {
        err = new Error('could not determine the mac address from:\n' + data);
        return next(err);
      }
      return next(null, result);
    };
    if (data) {
      return extractMac(data, next);
    } else {
      return exec(command, function(err, stdout, stderr) {
        if (err) {
          return next(err);
        }
        return extractMac(stdout, next);
      });
    }
  }

• example usage

  ...
  1. Install Globally: `install -g getmac`
  2. Run with:  `getmac-node`
  
  ### API
  
  ``` javascript
  // Fetch the computer's mac address
  require('getmac').getMac(function(err,macAddress){
  	if (err)  throw err
  	console.log(macAddress)
  })
  
  // Validate that an address is a mac address
  if ( require('getmac').isMac("e4:ce:8f:5b:a7:fc") ) {
  	console.log('valid mac')
  ...

function getmac.isMac (macAddress)

• description and source-code

  isMac = function (macAddress) {
    var ref;
    return ((ref = String(macAddress).match(macRegex)) != null ? ref.length : void 0) === 1;
  }

• example usage

  ...
  // Fetch the computer's mac address
  require('getmac').getMac(function(err,macAddress){
  	if (err)  throw err
  	console.log(macAddress)
  })
  
  // Validate that an address is a mac address
  if ( require('getmac').isMac("e4:ce:8f:5b:a7:fc") ) {
  	console.log('valid mac')
  }
  else {
  	console.log('invalid mac')
  }
  ```
  ...