author | sherman |
Wed, 04 Jun 2014 11:25:13 -0700 | |
changeset 24710 | c019dc4104b2 |
permissions | -rw-r--r-- |
24710
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
1 |
/* |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
2 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
3 |
* |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
4 |
* This code is free software; you can redistribute it and/or modify it |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
5 |
* under the terms of the GNU General Public License version 2 only, as |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
6 |
* published by the Free Software Foundation. Oracle designates this |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
7 |
* particular file as subject to the "Classpath" exception as provided |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
8 |
* by Oracle in the LICENSE file that accompanied this code. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
9 |
* |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
10 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
11 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
12 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
13 |
* version 2 for more details (a copy is included in the LICENSE file that |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
14 |
* accompanied this code). |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
15 |
* |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
16 |
* You should have received a copy of the GNU General Public License version |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
17 |
* 2 along with this work; if not, write to the Free Software Foundation, |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
18 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
19 |
* |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
20 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
21 |
* or visit www.oracle.com if you need additional information or have any |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
22 |
* questions. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
23 |
*/ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
24 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
25 |
/* compress.c -- compress a memory buffer |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
26 |
* Copyright (C) 1995-2005 Jean-loup Gailly. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
27 |
* For conditions of distribution and use, see copyright notice in zlib.h |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
28 |
*/ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
29 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
30 |
/* @(#) $Id$ */ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
31 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
32 |
#define ZLIB_INTERNAL |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
33 |
#include "zlib.h" |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
34 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
35 |
/* =========================================================================== |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
36 |
Compresses the source buffer into the destination buffer. The level |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
37 |
parameter has the same meaning as in deflateInit. sourceLen is the byte |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
38 |
length of the source buffer. Upon entry, destLen is the total size of the |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
39 |
destination buffer, which must be at least 0.1% larger than sourceLen plus |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
40 |
12 bytes. Upon exit, destLen is the actual size of the compressed buffer. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
41 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
42 |
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
43 |
memory, Z_BUF_ERROR if there was not enough room in the output buffer, |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
44 |
Z_STREAM_ERROR if the level parameter is invalid. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
45 |
*/ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
46 |
int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
47 |
Bytef *dest; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
48 |
uLongf *destLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
49 |
const Bytef *source; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
50 |
uLong sourceLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
51 |
int level; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
52 |
{ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
53 |
z_stream stream; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
54 |
int err; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
55 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
56 |
stream.next_in = (z_const Bytef *)source; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
57 |
stream.avail_in = (uInt)sourceLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
58 |
#ifdef MAXSEG_64K |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
59 |
/* Check for source > 64K on 16-bit machine: */ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
60 |
if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
61 |
#endif |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
62 |
stream.next_out = dest; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
63 |
stream.avail_out = (uInt)*destLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
64 |
if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
65 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
66 |
stream.zalloc = (alloc_func)0; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
67 |
stream.zfree = (free_func)0; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
68 |
stream.opaque = (voidpf)0; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
69 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
70 |
err = deflateInit(&stream, level); |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
71 |
if (err != Z_OK) return err; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
72 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
73 |
err = deflate(&stream, Z_FINISH); |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
74 |
if (err != Z_STREAM_END) { |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
75 |
deflateEnd(&stream); |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
76 |
return err == Z_OK ? Z_BUF_ERROR : err; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
77 |
} |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
78 |
*destLen = stream.total_out; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
79 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
80 |
err = deflateEnd(&stream); |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
81 |
return err; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
82 |
} |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
83 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
84 |
/* =========================================================================== |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
85 |
*/ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
86 |
int ZEXPORT compress (dest, destLen, source, sourceLen) |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
87 |
Bytef *dest; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
88 |
uLongf *destLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
89 |
const Bytef *source; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
90 |
uLong sourceLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
91 |
{ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
92 |
return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
93 |
} |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
94 |
|
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
95 |
/* =========================================================================== |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
96 |
If the default memLevel or windowBits for deflateInit() is changed, then |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
97 |
this function needs to be updated. |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
98 |
*/ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
99 |
uLong ZEXPORT compressBound (sourceLen) |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
100 |
uLong sourceLen; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
101 |
{ |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
102 |
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
103 |
(sourceLen >> 25) + 13; |
c019dc4104b2
8044725: Bug in zlib 1.2.5 prevents inflation of some gzipped files
sherman
parents:
diff
changeset
|
104 |
} |