From de98e0b232509d5f40c135d540a70e415272ff85 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Wed, 3 May 2017 15:35:00 +0200 Subject: node_modules --- node_modules/crc/lib/crc1.js | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 node_modules/crc/lib/crc1.js (limited to 'node_modules/crc/lib/crc1.js') diff --git a/node_modules/crc/lib/crc1.js b/node_modules/crc/lib/crc1.js new file mode 100644 index 000000000..dd72bb267 --- /dev/null +++ b/node_modules/crc/lib/crc1.js @@ -0,0 +1,28 @@ +'use strict'; + +var _buffer = require('buffer'); + +var _create_buffer = require('./create_buffer'); + +var _create_buffer2 = _interopRequireDefault(_create_buffer); + +var _define_crc = require('./define_crc'); + +var _define_crc2 = _interopRequireDefault(_define_crc); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +module.exports = (0, _define_crc2.default)('crc1', function (buf, previous) { + if (!_buffer.Buffer.isBuffer(buf)) buf = (0, _create_buffer2.default)(buf); + + var crc = ~~previous; + var accum = 0; + + for (var index = 0; index < buf.length; index++) { + var byte = buf[index]; + accum += byte; + } + + crc += accum % 256; + return crc % 256; +}); \ No newline at end of file -- cgit v1.2.3