From d1291f67551c58168af43698a359cb5ddfd266b0 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Thu, 3 Nov 2016 01:33:53 +0100 Subject: node_modules --- node_modules/ws/lib/BufferUtil.fallback.js | 47 ++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 node_modules/ws/lib/BufferUtil.fallback.js (limited to 'node_modules/ws/lib/BufferUtil.fallback.js') diff --git a/node_modules/ws/lib/BufferUtil.fallback.js b/node_modules/ws/lib/BufferUtil.fallback.js new file mode 100644 index 000000000..7abd0d8a6 --- /dev/null +++ b/node_modules/ws/lib/BufferUtil.fallback.js @@ -0,0 +1,47 @@ +/*! + * ws: a node.js websocket client + * Copyright(c) 2011 Einar Otto Stangvik + * MIT Licensed + */ + +exports.BufferUtil = { + merge: function(mergedBuffer, buffers) { + var offset = 0; + for (var i = 0, l = buffers.length; i < l; ++i) { + var buf = buffers[i]; + buf.copy(mergedBuffer, offset); + offset += buf.length; + } + }, + mask: function(source, mask, output, offset, length) { + var maskNum = mask.readUInt32LE(0, true); + var i = 0; + for (; i < length - 3; i += 4) { + var num = maskNum ^ source.readUInt32LE(i, true); + if (num < 0) num = 4294967296 + num; + output.writeUInt32LE(num, offset + i, true); + } + switch (length % 4) { + case 3: output[offset + i + 2] = source[i + 2] ^ mask[2]; + case 2: output[offset + i + 1] = source[i + 1] ^ mask[1]; + case 1: output[offset + i] = source[i] ^ mask[0]; + case 0:; + } + }, + unmask: function(data, mask) { + var maskNum = mask.readUInt32LE(0, true); + var length = data.length; + var i = 0; + for (; i < length - 3; i += 4) { + var num = maskNum ^ data.readUInt32LE(i, true); + if (num < 0) num = 4294967296 + num; + data.writeUInt32LE(num, i, true); + } + switch (length % 4) { + case 3: data[i + 2] = data[i + 2] ^ mask[2]; + case 2: data[i + 1] = data[i + 1] ^ mask[1]; + case 1: data[i] = data[i] ^ mask[0]; + case 0:; + } + } +} -- cgit v1.2.3