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-rwxr-xr-xdeps/npm/node_modules/sntp/lib/index.js412
1 files changed, 0 insertions, 412 deletions
diff --git a/deps/npm/node_modules/sntp/lib/index.js b/deps/npm/node_modules/sntp/lib/index.js
deleted file mode 100755
index e91718b4ff..0000000000
--- a/deps/npm/node_modules/sntp/lib/index.js
+++ /dev/null
@@ -1,412 +0,0 @@
-// Load modules
-
-var Dgram = require('dgram');
-var Dns = require('dns');
-var Hoek = require('hoek');
-
-
-// Declare internals
-
-var internals = {};
-
-
-exports.time = function (options, callback) {
-
- if (arguments.length !== 2) {
- callback = arguments[0];
- options = {};
- }
-
- var settings = Hoek.clone(options);
- settings.host = settings.host || 'pool.ntp.org';
- settings.port = settings.port || 123;
- settings.resolveReference = settings.resolveReference || false;
-
- // Declare variables used by callback
-
- var timeoutId = 0;
- var sent = 0;
-
- // Ensure callback is only called once
-
- var finish = function (err, result) {
-
- if (timeoutId) {
- clearTimeout(timeoutId);
- timeoutId = 0;
- }
-
- socket.removeAllListeners();
- socket.once('error', internals.ignore);
- socket.close();
- return callback(err, result);
- };
-
- finish = Hoek.once(finish);
-
- // Create UDP socket
-
- var socket = Dgram.createSocket('udp4');
-
- socket.once('error', function (err) {
-
- return finish(err);
- });
-
- // Listen to incoming messages
-
- socket.on('message', function (buffer, rinfo) {
-
- var received = Date.now();
-
- var message = new internals.NtpMessage(buffer);
- if (!message.isValid) {
- return finish(new Error('Invalid server response'), message);
- }
-
- if (message.originateTimestamp !== sent) {
- return finish(new Error('Wrong originate timestamp'), message);
- }
-
- // Timestamp Name ID When Generated
- // ------------------------------------------------------------
- // Originate Timestamp T1 time request sent by client
- // Receive Timestamp T2 time request received by server
- // Transmit Timestamp T3 time reply sent by server
- // Destination Timestamp T4 time reply received by client
- //
- // The roundtrip delay d and system clock offset t are defined as:
- //
- // d = (T4 - T1) - (T3 - T2) t = ((T2 - T1) + (T3 - T4)) / 2
-
- var T1 = message.originateTimestamp;
- var T2 = message.receiveTimestamp;
- var T3 = message.transmitTimestamp;
- var T4 = received;
-
- message.d = (T4 - T1) - (T3 - T2);
- message.t = ((T2 - T1) + (T3 - T4)) / 2;
- message.receivedLocally = received;
-
- if (!settings.resolveReference ||
- message.stratum !== 'secondary') {
-
- return finish(null, message);
- }
-
- // Resolve reference IP address
-
- Dns.reverse(message.referenceId, function (err, domains) {
-
- if (/* $lab:coverage:off$ */ !err /* $lab:coverage:on$ */) {
- message.referenceHost = domains[0];
- }
-
- return finish(null, message);
- });
- });
-
- // Set timeout
-
- if (settings.timeout) {
- timeoutId = setTimeout(function () {
-
- timeoutId = 0;
- return finish(new Error('Timeout'));
- }, settings.timeout);
- }
-
- // Construct NTP message
-
- var message = new Buffer(48);
- for (var i = 0; i < 48; i++) { // Zero message
- message[i] = 0;
- }
-
- message[0] = (0 << 6) + (4 << 3) + (3 << 0) // Set version number to 4 and Mode to 3 (client)
- sent = Date.now();
- internals.fromMsecs(sent, message, 40); // Set transmit timestamp (returns as originate)
-
- // Send NTP request
-
- socket.send(message, 0, message.length, settings.port, settings.host, function (err, bytes) {
-
- if (err ||
- bytes !== 48) {
-
- return finish(err || new Error('Could not send entire message'));
- }
- });
-};
-
-
-internals.NtpMessage = function (buffer) {
-
- this.isValid = false;
-
- // Validate
-
- if (buffer.length !== 48) {
- return;
- }
-
- // Leap indicator
-
- var li = (buffer[0] >> 6);
- switch (li) {
- case 0: this.leapIndicator = 'no-warning'; break;
- case 1: this.leapIndicator = 'last-minute-61'; break;
- case 2: this.leapIndicator = 'last-minute-59'; break;
- case 3: this.leapIndicator = 'alarm'; break;
- }
-
- // Version
-
- var vn = ((buffer[0] & 0x38) >> 3);
- this.version = vn;
-
- // Mode
-
- var mode = (buffer[0] & 0x7);
- switch (mode) {
- case 1: this.mode = 'symmetric-active'; break;
- case 2: this.mode = 'symmetric-passive'; break;
- case 3: this.mode = 'client'; break;
- case 4: this.mode = 'server'; break;
- case 5: this.mode = 'broadcast'; break;
- case 0:
- case 6:
- case 7: this.mode = 'reserved'; break;
- }
-
- // Stratum
-
- var stratum = buffer[1];
- if (stratum === 0) {
- this.stratum = 'death';
- }
- else if (stratum === 1) {
- this.stratum = 'primary';
- }
- else if (stratum <= 15) {
- this.stratum = 'secondary';
- }
- else {
- this.stratum = 'reserved';
- }
-
- // Poll interval (msec)
-
- this.pollInterval = Math.round(Math.pow(2, buffer[2])) * 1000;
-
- // Precision (msecs)
-
- this.precision = Math.pow(2, buffer[3]) * 1000;
-
- // Root delay (msecs)
-
- var rootDelay = 256 * (256 * (256 * buffer[4] + buffer[5]) + buffer[6]) + buffer[7];
- this.rootDelay = 1000 * (rootDelay / 0x10000);
-
- // Root dispersion (msecs)
-
- this.rootDispersion = ((buffer[8] << 8) + buffer[9] + ((buffer[10] << 8) + buffer[11]) / Math.pow(2, 16)) * 1000;
-
- // Reference identifier
-
- this.referenceId = '';
- switch (this.stratum) {
- case 'death':
- case 'primary':
- this.referenceId = String.fromCharCode(buffer[12]) + String.fromCharCode(buffer[13]) + String.fromCharCode(buffer[14]) + String.fromCharCode(buffer[15]);
- break;
- case 'secondary':
- this.referenceId = '' + buffer[12] + '.' + buffer[13] + '.' + buffer[14] + '.' + buffer[15];
- break;
- }
-
- // Reference timestamp
-
- this.referenceTimestamp = internals.toMsecs(buffer, 16);
-
- // Originate timestamp
-
- this.originateTimestamp = internals.toMsecs(buffer, 24);
-
- // Receive timestamp
-
- this.receiveTimestamp = internals.toMsecs(buffer, 32);
-
- // Transmit timestamp
-
- this.transmitTimestamp = internals.toMsecs(buffer, 40);
-
- // Validate
-
- if (this.version === 4 &&
- this.stratum !== 'reserved' &&
- this.mode === 'server' &&
- this.originateTimestamp &&
- this.receiveTimestamp &&
- this.transmitTimestamp) {
-
- this.isValid = true;
- }
-
- return this;
-};
-
-
-internals.toMsecs = function (buffer, offset) {
-
- var seconds = 0;
- var fraction = 0;
-
- for (var i = 0; i < 4; ++i) {
- seconds = (seconds * 256) + buffer[offset + i];
- }
-
- for (i = 4; i < 8; ++i) {
- fraction = (fraction * 256) + buffer[offset + i];
- }
-
- return ((seconds - 2208988800 + (fraction / Math.pow(2, 32))) * 1000);
-};
-
-
-internals.fromMsecs = function (ts, buffer, offset) {
-
- var seconds = Math.floor(ts / 1000) + 2208988800;
- var fraction = Math.round((ts % 1000) / 1000 * Math.pow(2, 32));
-
- buffer[offset + 0] = (seconds & 0xFF000000) >> 24;
- buffer[offset + 1] = (seconds & 0x00FF0000) >> 16;
- buffer[offset + 2] = (seconds & 0x0000FF00) >> 8;
- buffer[offset + 3] = (seconds & 0x000000FF);
-
- buffer[offset + 4] = (fraction & 0xFF000000) >> 24;
- buffer[offset + 5] = (fraction & 0x00FF0000) >> 16;
- buffer[offset + 6] = (fraction & 0x0000FF00) >> 8;
- buffer[offset + 7] = (fraction & 0x000000FF);
-};
-
-
-// Offset singleton
-
-internals.last = {
- offset: 0,
- expires: 0,
- host: '',
- port: 0
-};
-
-
-exports.offset = function (options, callback) {
-
- if (arguments.length !== 2) {
- callback = arguments[0];
- options = {};
- }
-
- var now = Date.now();
- var clockSyncRefresh = options.clockSyncRefresh || 24 * 60 * 60 * 1000; // Daily
-
- if (internals.last.offset &&
- internals.last.host === options.host &&
- internals.last.port === options.port &&
- now < internals.last.expires) {
-
- process.nextTick(function () {
-
- callback(null, internals.last.offset);
- });
-
- return;
- }
-
- exports.time(options, function (err, time) {
-
- if (err) {
- return callback(err, 0);
- }
-
- internals.last = {
- offset: Math.round(time.t),
- expires: now + clockSyncRefresh,
- host: options.host,
- port: options.port
- };
-
- return callback(null, internals.last.offset);
- });
-};
-
-
-// Now singleton
-
-internals.now = {
- intervalId: 0
-};
-
-
-exports.start = function (options, callback) {
-
- if (arguments.length !== 2) {
- callback = arguments[0];
- options = {};
- }
-
- if (internals.now.intervalId) {
- process.nextTick(function () {
-
- callback();
- });
-
- return;
- }
-
- exports.offset(options, function (err, offset) {
-
- internals.now.intervalId = setInterval(function () {
-
- exports.offset(options, function () { });
- }, options.clockSyncRefresh || 24 * 60 * 60 * 1000); // Daily
-
- return callback();
- });
-};
-
-
-exports.stop = function () {
-
- if (!internals.now.intervalId) {
- return;
- }
-
- clearInterval(internals.now.intervalId);
- internals.now.intervalId = 0;
-};
-
-
-exports.isLive = function () {
-
- return !!internals.now.intervalId;
-};
-
-
-exports.now = function () {
-
- var now = Date.now();
- if (!exports.isLive() ||
- now >= internals.last.expires) {
-
- return now;
- }
-
- return now + internals.last.offset;
-};
-
-
-internals.ignore = function () {
-
-};
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