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Merged changes from zlib 1.1.4.

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This commit is contained in:
Werner Koch 2002-03-12 09:34:29 +00:00
parent f8f52d8ffe
commit 6c1f79a654
24 changed files with 85 additions and 62 deletions
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22
zlib/ChangeLog
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@ -1,3 +1,7 @@
2002-03-12 Werner Koch <wk@gnupg.org>
Merged changes from zlib 1.1.4.
Sat Feb 13 12:04:43 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* Makefile.am: Removed -Wall
@ -8,19 +12,27 @@ Wed Jan 20 21:40:21 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
Wed Jan 13 14:10:15 CET 1999 Werner Koch <wk@isil.d.shuttle.de>
* Merged version 1.1.13 with the previousy used 1.0.4
Merged version 1.1.3 with the previousy used 1.0.4
Thu Feb 12 12:20:45 1998 Werner Koch (wk@frodo)
- removed a couple of files, as this is only used if zlib is
missing on a system.
- added automake stuff
Removed a couple of files, as this is only used if zlib is
missing on a system. Added automake stuff
ChangeLog file for zlib
Changes in 1.1.4 (11 March 2002)
- ZFREE was repeated on same allocation on some error conditions.
This creates a security problem described in
http://www.zlib.org/advisory-2002-03-11.txt
- Returned incorrect error (Z_MEM_ERROR) on some invalid data
- Avoid accesses before window for invalid distances with inflate window
less than 32K.
- force windowBits > 8 to avoid a bug in the encoder for a window size
of 256 bytes. (A complete fix will be available in 1.1.5).
Changes in 1.1.3 (9 July 1998)
- fix "an inflate input buffer bug that shows up on rare but persistent
occasions" (Mark)

2
zlib/adler32.c
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@ -1,5 +1,5 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/compress.c
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@ -1,5 +1,5 @@
/* compress.c -- compress a memory buffer
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/crc32.c
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@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

6
zlib/deflate.c
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@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.1.3 Copyright 1995-1998 Jean-loup Gailly ";
" deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@ -242,7 +242,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
windowBits = -windowBits;
}
if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
windowBits < 9 || windowBits > 15 || level < 0 || level > 9 ||
strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
return Z_STREAM_ERROR;
}

2
zlib/deflate.h
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@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
* Copyright (C) 1995-1998 Jean-loup Gailly
* Copyright (C) 1995-2002 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/example.c
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@ -1,5 +1,5 @@
/* example.c -- usage example of the zlib compression library
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/

11
zlib/infblock.c
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@ -1,5 +1,5 @@
/* infblock.c -- interpret and process block types to last block
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -249,10 +249,12 @@ int r;
&s->sub.trees.tb, s->hufts, z);
if (t != Z_OK)
{
ZFREE(z, s->sub.trees.blens);
r = t;
if (r == Z_DATA_ERROR)
{
ZFREE(z, s->sub.trees.blens);
s->mode = BAD;
}
LEAVE
}
s->sub.trees.index = 0;
@ -313,11 +315,13 @@ int r;
t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
s->sub.trees.blens, &bl, &bd, &tl, &td,
s->hufts, z);
ZFREE(z, s->sub.trees.blens);
if (t != Z_OK)
{
if (t == (uInt)Z_DATA_ERROR)
{
ZFREE(z, s->sub.trees.blens);
s->mode = BAD;
}
r = t;
LEAVE
}
@ -329,6 +333,7 @@ int r;
}
s->sub.decode.codes = c;
}
ZFREE(z, s->sub.trees.blens);
s->mode = CODES;
case CODES:
UPDATE

2
zlib/infblock.h
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@ -1,5 +1,5 @@
/* infblock.h -- header to use infblock.c
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

12
zlib/infcodes.c
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@ -1,5 +1,5 @@
/* infcodes.c -- process literals and length/distance pairs
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -196,15 +196,9 @@ int r;
Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist));
c->mode = COPY;
case COPY: /* o: copying bytes in window, waiting for space */
#ifndef __TURBOC__ /* Turbo C bug for following expression */
f = (uInt)(q - s->window) < c->sub.copy.dist ?
s->end - (c->sub.copy.dist - (q - s->window)) :
q - c->sub.copy.dist;
#else
f = q - c->sub.copy.dist;
if ((uInt)(q - s->window) < c->sub.copy.dist)
f = s->end - (c->sub.copy.dist - (uInt)(q - s->window));
#endif
while (f < s->window) /* modulo window size-"while" instead */
f += s->end - s->window; /* of "if" handles invalid distances */
while (c->len)
{
NEEDOUT

2
zlib/infcodes.h
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@ -1,5 +1,5 @@
/* infcodes.h -- header to use infcodes.c
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

47
zlib/inffast.c
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@ -1,5 +1,5 @@
/* inffast.c -- process literals and length/distance pairs fast
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -93,28 +93,41 @@ z_streamp z;
/* do the copy */
m -= c;
if ((uInt)(q - s->window) >= d) /* offset before dest */
{ /* just copy */
r = q - d;
*q++ = *r++; c--; /* minimum count is three, */
*q++ = *r++; c--; /* so unroll loop a little */
}
else /* else offset after destination */
r = q - d;
if (r < s->window) /* wrap if needed */
{
e = d - (uInt)(q - s->window); /* bytes from offset to end */
r = s->end - e; /* pointer to offset */
if (c > e) /* if source crosses, */
do {
r += s->end - s->window; /* force pointer in window */
} while (r < s->window); /* covers invalid distances */
e = s->end - r;
if (c > e)
{
c -= e; /* copy to end of window */
c -= e; /* wrapped copy */
do {
*q++ = *r++;
*q++ = *r++;
} while (--e);
r = s->window; /* copy rest from start of window */
r = s->window;
do {
*q++ = *r++;
} while (--c);
}
else /* normal copy */
{
*q++ = *r++; c--;
*q++ = *r++; c--;
do {
*q++ = *r++;
} while (--c);
}
}
do { /* copy all or what's left */
*q++ = *r++;
} while (--c);
else /* normal copy */
{
*q++ = *r++; c--;
*q++ = *r++; c--;
do {
*q++ = *r++;
} while (--c);
}
break;
}
else if ((e & 64) == 0)

2
zlib/inffast.h
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@ -1,5 +1,5 @@
/* inffast.h -- header to use inffast.c
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/inflate.c
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@ -1,5 +1,5 @@
/* inflate.c -- zlib interface to inflate modules
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

9
zlib/inftrees.c
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@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -11,7 +11,7 @@
#endif
const char inflate_copyright[] =
" inflate 1.1.3 Copyright 1995-1998 Mark Adler ";
" inflate 1.1.4 Copyright 1995-2002 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@ -104,8 +104,7 @@ uIntf *v; /* working area: values in order of bit length */
/* Given a list of code lengths and a maximum table size, make a set of
tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR
if the given code set is incomplete (the tables are still built in this
case), Z_DATA_ERROR if the input is invalid (an over-subscribed set of
lengths), or Z_MEM_ERROR if not enough memory. */
case), or Z_DATA_ERROR if the input is invalid. */
{
uInt a; /* counter for codes of length k */
@ -231,7 +230,7 @@ uIntf *v; /* working area: values in order of bit length */
/* allocate new table */
if (*hn + z > MANY) /* (note: doesn't matter for fixed) */
return Z_MEM_ERROR; /* not enough memory */
return Z_DATA_ERROR; /* overflow of MANY */
u[h] = q = hp + *hn;
*hn += z;

2
zlib/inftrees.h
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@ -1,5 +1,5 @@
/* inftrees.h -- header to use inftrees.c
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/infutil.c
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@ -1,5 +1,5 @@
/* inflate_util.c -- data and routines common to blocks and codes
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/infutil.h
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@ -1,5 +1,5 @@
/* infutil.h -- types and macros common to blocks and codes
* Copyright (C) 1995-1998 Mark Adler
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/trees.c
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@ -1,5 +1,5 @@
/* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-1998 Jean-loup Gailly
* Copyright (C) 1995-2002 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/uncompr.c
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@ -1,5 +1,5 @@
/* uncompr.c -- decompress a memory buffer
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/zconf.h
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@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/

6
zlib/zlib.h
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@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.1.3, July 9th, 1998
version 1.1.4, March 11th, 2002
Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler
Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@ -37,7 +37,7 @@
extern "C" {
#endif
#define ZLIB_VERSION "1.1.3"
#define ZLIB_VERSION "1.1.4"
/*
The 'zlib' compression library provides in-memory compression and

2
zlib/zutil.c
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@ -1,5 +1,5 @@
/* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/

2
zlib/zutil.h
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@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-1998 Jean-loup Gailly.
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/