add hw2

node_modules/pako/lib/zlib/gzheader.js

@@ -0,0 +1,58 @@
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+function GZheader() {
+  /* true if compressed data believed to be text */
+  this.text       = 0;
+  /* modification time */
+  this.time       = 0;
+  /* extra flags (not used when writing a gzip file) */
+  this.xflags     = 0;
+  /* operating system */
+  this.os         = 0;
+  /* pointer to extra field or Z_NULL if none */
+  this.extra      = null;
+  /* extra field length (valid if extra != Z_NULL) */
+  this.extra_len  = 0; // Actually, we don't need it in JS,
+                       // but leave for few code modifications
+
+  //
+  // Setup limits is not necessary because in js we should not preallocate memory
+  // for inflate use constant limit in 65536 bytes
+  //
+
+  /* space at extra (only when reading header) */
+  // this.extra_max  = 0;
+  /* pointer to zero-terminated file name or Z_NULL */
+  this.name       = '';
+  /* space at name (only when reading header) */
+  // this.name_max   = 0;
+  /* pointer to zero-terminated comment or Z_NULL */
+  this.comment    = '';
+  /* space at comment (only when reading header) */
+  // this.comm_max   = 0;
+  /* true if there was or will be a header crc */
+  this.hcrc       = 0;
+  /* true when done reading gzip header (not used when writing a gzip file) */
+  this.done       = false;
+}
+
+module.exports = GZheader;