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tests/node_modules/wireless-tools/hostapd.js

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+/*
+ * Copyright (c) 2015 Christopher M. Baker
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+var child_process = require('child_process');
+
+/**
+ * The **hostpad** command is used to configure wireless access points.
+ *
+ * @static
+ * @category hostapd
+ *
+ */
+var hostapd = module.exports = {
+  exec: child_process.exec,
+  disable: disable,
+  enable: enable
+};
+
+/**
+ * The **hostpad disable** command is used to stop hosting an access point
+ * on a specific wireless interface.
+ *
+ * @static
+ * @category hostapd
+ * @param {string} interface The network interface of the access point.
+ * @param {function} callback The callback function.
+ * @returns {process} The child process.
+ * @example
+ *
+ * var hostapd = require('wireless-tools/hostapd');
+ *
+ * hostapd.disable('wlan0', function(err) {
+ *   // no longer hosting the access point
+ * });
+ *
+ */
+function disable(interface, callback) {
+  var file = interface + '-hostapd.conf';
+
+  return this.exec('kill `pgrep -f "^hostapd -B ' + file + '"` || true',
+    callback);
+}
+
+/**
+ * The **hostpad enable** command is used to host an access point
+ * on a specific wireless interface.
+ *
+ * @static
+ * @category hostapd
+ * @param {object} options The access point configuration.
+ * @param {function} callback The callback function.
+ * @returns {process} The child process.
+ * @example
+ *
+ * var hostapd = require('wireless-tools/hostapd');
+ *
+ * var options = {
+ *   channel: 6,
+ *   driver: 'rtl871xdrv',
+ *   hw_mode: 'g',
+ *   interface: 'wlan0',
+ *   ssid: 'RaspberryPi',
+ *   wpa: 2,
+ *   wpa_passphrase: 'raspberry'
+ * };
+ *
+ * hostapd.enable(options, function(err) {
+ *   // the access point was created
+ * });
+ *
+ */
+function enable(options, callback) {
+  var file = options.interface + '-hostapd.conf';
+
+  var commands = [
+    'cat <<EOF >' + file + ' && hostapd -B ' + file + ' && rm -f ' + file
+  ];
+
+  Object.getOwnPropertyNames(options).forEach(function(key) {
+    commands.push(key + '=' + options[key]);
+  });
+
+  return this.exec(commands.join('\n'), callback);
+}