1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162 |
- #define ZLIB_INTERNAL
- #include "zlib.h"
- int ZEXPORT uncompress (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
- {
- z_stream stream;
- int err;
- stream.next_in = (Bytef*)source;
- stream.avail_in = (uInt)sourceLen;
-
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
- stream.next_out = dest;
- stream.avail_out = (uInt)*destLen;
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
- stream.zalloc = (alloc_func)0;
- stream.zfree = (free_func)0;
- err = inflateInit(&stream);
- if (err != Z_OK) return err;
- err = inflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- inflateEnd(&stream);
- if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
- return Z_DATA_ERROR;
- return err;
- }
- *destLen = stream.total_out;
- err = inflateEnd(&stream);
- return err;
- }
|