"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "zlib/zlib/compress.c" between
muscle7.61.zip and muscle7.62.zip

About: MUSCLE (Multi User Server Client Linking Environment) is a messaging server and networking API. The included server program ("muscled") lets its clients message each other, and/or store information in its serverside hierarchical database.

compress.c  (muscle7.61):compress.c  (muscle7.62)
/* compress.c -- compress a memory buffer /* compress.c -- compress a memory buffer
* Copyright (C) 1995-2005 Jean-loup Gailly. * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
/* @(#) $Id$ */ /* @(#) $Id$ */
#define ZLIB_INTERNAL #define ZLIB_INTERNAL
#include "zlib.h" #include "zlib.h"
/* =========================================================================== /* ===========================================================================
Compresses the source buffer into the destination buffer. The level Compresses the source buffer into the destination buffer. The level
skipping to change at line 31 skipping to change at line 31
*/ */
int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
Bytef *dest; Bytef *dest;
uLongf *destLen; uLongf *destLen;
const Bytef *source; const Bytef *source;
uLong sourceLen; uLong sourceLen;
int level; int level;
{ {
z_stream stream; z_stream stream;
int err; int err;
const uInt max = (uInt)-1;
uLong left;
stream.next_in = (z_const Bytef *)source; left = *destLen;
stream.avail_in = (uInt)sourceLen; *destLen = 0;
#ifdef MAXSEG_64K
/* Check for source > 64K on 16-bit machine: */
if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
#endif
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.zalloc = (alloc_func)0;
stream.zfree = (free_func)0; stream.zfree = (free_func)0;
stream.opaque = (voidpf)0; stream.opaque = (voidpf)0;
err = deflateInit(&stream, level); err = deflateInit(&stream, level);
if (err != Z_OK) return err; if (err != Z_OK) return err;
err = deflate(&stream, Z_FINISH); stream.next_out = dest;
if (err != Z_STREAM_END) { stream.avail_out = 0;
deflateEnd(&stream); stream.next_in = (z_const Bytef *)source;
return err == Z_OK ? Z_BUF_ERROR : err; stream.avail_in = 0;
}
*destLen = stream.total_out; do {
if (stream.avail_out == 0) {
stream.avail_out = left > (uLong)max ? max : (uInt)left;
left -= stream.avail_out;
}
if (stream.avail_in == 0) {
stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen;
sourceLen -= stream.avail_in;
}
err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH);
} while (err == Z_OK);
err = deflateEnd(&stream); *destLen = stream.total_out;
return err; deflateEnd(&stream);
return err == Z_STREAM_END ? Z_OK : err;
} }
/* =========================================================================== /* ===========================================================================
*/ */
int ZEXPORT compress (dest, destLen, source, sourceLen) int ZEXPORT compress (dest, destLen, source, sourceLen)
Bytef *dest; Bytef *dest;
uLongf *destLen; uLongf *destLen;
const Bytef *source; const Bytef *source;
uLong sourceLen; uLong sourceLen;
{ {
 End of changes. 5 change blocks. 
18 lines changed or deleted 24 lines changed or added

Home  |  About  |  Features  |  All  |  Newest  |  Dox  |  Diffs  |  RSS Feeds  |  Screenshots  |  Comments  |  Imprint  |  Privacy  |  HTTP(S)