+++ /dev/null
-/* uncompr.c -- decompress a memory buffer\r
- * Copyright (C) 1995-2003, 2010 Jean-loup Gailly.\r
- * For conditions of distribution and use, see copyright notice in zlib.h\r
- */\r
-\r
-/* @(#) $Id$ */\r
-\r
-#define ZLIB_INTERNAL\r
-#include "zlib.h"\r
-\r
-/* ===========================================================================\r
- Decompresses the source buffer into the destination buffer. sourceLen is\r
- the byte length of the source buffer. Upon entry, destLen is the total\r
- size of the destination buffer, which must be large enough to hold the\r
- entire uncompressed data. (The size of the uncompressed data must have\r
- been saved previously by the compressor and transmitted to the decompressor\r
- by some mechanism outside the scope of this compression library.)\r
- Upon exit, destLen is the actual size of the compressed buffer.\r
-\r
- uncompress returns Z_OK if success, Z_MEM_ERROR if there was not\r
- enough memory, Z_BUF_ERROR if there was not enough room in the output\r
- buffer, or Z_DATA_ERROR if the input data was corrupted.\r
-*/\r
-int ZEXPORT uncompress (dest, destLen, source, sourceLen)\r
- Bytef *dest;\r
- uLongf *destLen;\r
- const Bytef *source;\r
- uLong sourceLen;\r
-{\r
- z_stream stream;\r
- int err;\r
-\r
- stream.next_in = (z_const Bytef *)source;\r
- stream.avail_in = (uInt)sourceLen;\r
- /* Check for source > 64K on 16-bit machine: */\r
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;\r
-\r
- stream.next_out = dest;\r
- stream.avail_out = (uInt)*destLen;\r
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;\r
-\r
- stream.zalloc = (alloc_func)0;\r
- stream.zfree = (free_func)0;\r
-\r
- err = inflateInit(&stream);\r
- if (err != Z_OK) return err;\r
-\r
- err = inflate(&stream, Z_FINISH);\r
- if (err != Z_STREAM_END) {\r
- inflateEnd(&stream);\r
- if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))\r
- return Z_DATA_ERROR;\r
- return err;\r
- }\r
- *destLen = stream.total_out;\r
-\r
- err = inflateEnd(&stream);\r
- return err;\r
-}\r