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Bug 131826: backed out the zlib 1.1.4 upgrade because the signtool tests 

failed.
Modified Files:
	README adler32.c compress.c crc32.c deflate.c deflate.h
	example.c gzio.c infblock.c infblock.h infcodes.c infcodes.h
	inffast.c inffast.h inflate.c inftrees.c inftrees.h infutil.c
	infutil.h minigzip.c trees.c uncompr.c zconf.h zlib.h zutil.c
	zutil.h
This commit is contained in:
wtc%netscape.com 2003-02-08 15:00:13 +00:00
Родитель 6edc864d6e
Коммит 165f568bae
26 изменённых файлов: 980 добавлений и 2782 удалений
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122
security/nss/cmd/zlib/README
Просмотреть файл

@ -1,122 +1,74 @@
zlib 1.1.4 is a general purpose data compression library. All the code
is thread safe. The data format used by the zlib library
zlib 1.0.4 is a general purpose data compression library. All the code
is reentrant (thread safe). The data format used by the zlib library
is described by RFCs (Request for Comments) 1950 to 1952 in the files
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
format) and rfc1952.txt (gzip format). These documents are also available in
other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact jloup@gzip.org). A usage
example of the library is given in the file example.c which also tests that
the library is working correctly. Another example is given in the file
minigzip.c. The compression library itself is composed of all source files
except example.c and minigzip.c.
All functions of the compression library are documented in the file
zlib.h. A usage example of the library is given in the file example.c
which also tests that the library is working correctly. Another
example is given in the file minigzip.c. The compression library itself
is composed of all source files except example.c and minigzip.c.
To compile all files and run the test program, follow the instructions
given at the top of Makefile. In short "make test; make install"
should work for most machines. For Unix: "./configure; make test; make install"
For MSDOS, use one of the special makefiles such as Makefile.msc.
For VMS, use Make_vms.com or descrip.mms.
should work for most machines. For MSDOS, use one of the special
makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms.
Questions about zlib should be sent to <zlib@gzip.org>, or to
Gilles Vollant <info@winimage.com> for the Windows DLL version.
The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/
Before reporting a problem, please check this site to verify that
you have the latest version of zlib; otherwise get the latest version and
check whether the problem still exists or not.
Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov> or,
if this fails, to the addresses given below in the Copyright section.
The zlib home page is http://quest.jpl.nasa.gov/zlib/
PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html
before asking for help.
The changes made in version 1.0.4 are documented in the file ChangeLog.
The main changes since 1.0.3 are:
Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
issue of Dr. Dobb's Journal; a copy of the article is available in
http://dogma.net/markn/articles/zlibtool/zlibtool.htm
- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
bit, so the decompressor could decompress all the correct data but went
on to attempt decompressing extra garbage data. This affected minigzip too.
- zlibVersion and gzerror return const char* (needed for DLL)
- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
The changes made in version 1.1.4 are documented in the file ChangeLog.
The only changes made since 1.1.3 are bug corrections:
- 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).
The beta version 1.1.5beta includes many more changes. A new official
version 1.1.5 will be released as soon as extensive testing has been
completed on it.
Unsupported third party contributions are provided in directory "contrib".
A Java implementation of zlib is available in the Java Development Kit
http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
See the zlib home page http://www.zlib.org for details.
A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>
is in the CPAN (Comprehensive Perl Archive Network) sites
http://www.cpan.org/modules/by-module/Compress/
A Python interface to zlib written by A.M. Kuchling <amk@magnet.com>
is available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html
A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
An experimental package to read and write files in .zip format,
written on top of zlib by Gilles Vollant <info@winimage.com>, is
available at http://www.winimage.com/zLibDll/unzip.html
and also in the contrib/minizip directory of zlib.
is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
Notes for some targets:
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
The zlib DLL support was initially done by Alessandro Iacopetti and is
now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL
home page at http://www.winimage.com/zLibDll
- For Turbo C the small model is supported only with reduced performance to
avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
From Visual Basic, you can call the DLL functions which do not take
a structure as argument: compress, uncompress and all gz* functions.
See contrib/visual-basic.txt for more information, or get
http://www.tcfb.com/dowseware/cmp-z-it.zip
- For 64-bit Irix, deflate.c must be compiled without any optimization.
- For 64-bit Iris, deflate.c must be compiled without any optimization.
With -O, one libpng test fails. The test works in 32 bit mode (with
the -n32 compiler flag). The compiler bug has been reported to SGI.
the -32 compiler flag). The compiler bug has been reported to SGI.
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1
it works when compiled with cc.
- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
is necessary to get gzprintf working correctly. This is done by configure.
- zlib doesn't work on HP-UX 9.05 with one cc compiler (the one not
accepting the -O option). It works with the other cc compiler.
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
with other compilers. Use "make test" to check your compiler.
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
For help on building a zlib DLL, contact Alessandro Iacopetti
<iaco@email.alessandria.alpcom.it> http://lisa.unial.it/iaco ,
or contact Brad Clarke <bclarke@cyberus.ca>.
- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
- For Turbo C the small model is supported only with reduced performance to
avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
Per Harald Myrvang <perm@stud.cs.uit.no>
- gzdopen is not supported on RISCOS
Acknowledgments:
The deflate format used by zlib was defined by Phil Katz. The deflate
and zlib specifications were written by L. Peter Deutsch. Thanks to all the
and zlib specifications were written by Peter Deutsch. Thanks to all the
people who reported problems and suggested various improvements in zlib;
they are too numerous to cite here.
Copyright notice:
(C) 1995-2002 Jean-loup Gailly and Mark Adler
(C) 1995-1996 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
@ -135,7 +87,7 @@ Copyright notice:
3. This notice may not be removed or altered from any source distribution.
Jean-loup Gailly Mark Adler
jloup@gzip.org madler@alumni.caltech.edu
gzip@prep.ai.mit.edu madler@alumni.caltech.edu
If you use the zlib library in a product, we would appreciate *not*
receiving lengthy legal documents to sign. The sources are provided

8
security/nss/cmd/zlib/adler32.c
Просмотреть файл

@ -1,9 +1,9 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: adler32.c,v 1.2 2003-02-08 08:50:35 wtc%netscape.com Exp $ */
/* This file was modified since it was taken from the zlib distribution */
/* $Id: adler32.c,v 1.3 2003-02-08 15:00:09 wtc%netscape.com Exp $ */
#include "zlib.h"
@ -18,7 +18,7 @@
#define DO16(buf) DO8(buf,0); DO8(buf,8);
/* ========================================================================= */
uLong ZEXPORT adler32(adler, buf, len)
PR_PUBLIC_API(uLong) adler32(adler, buf, len)
uLong adler;
const Bytef *buf;
uInt len;

41
security/nss/cmd/zlib/compress.c
Просмотреть файл

@ -1,29 +1,29 @@
/* compress.c -- compress a memory buffer
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: compress.c,v 1.2 2003-02-08 08:50:37 wtc%netscape.com Exp $ */
/* This file was modified since it was taken from the zlib distribution */
/* $Id: compress.c,v 1.3 2003-02-08 15:00:09 wtc%netscape.com Exp $ */
#include "zlib.h"
/* ===========================================================================
Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least 0.1% larger than sourceLen plus
12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
Z_STREAM_ERROR if the level parameter is invalid.
Compresses the source buffer into the destination buffer. sourceLen is
the byte length of the source buffer. Upon entry, destLen is the total
size of the destination buffer, which must be at least 0.1% larger than
sourceLen plus 8 bytes. Upon exit, destLen is the actual size of the
compressed buffer.
This function can be used to compress a whole file at once if the
input file is mmap'ed.
compress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
buffer.
*/
int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
PR_PUBLIC_API(int) compress (dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
int level;
{
z_stream stream;
int err;
@ -42,7 +42,7 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
stream.zfree = (free_func)0;
stream.opaque = (voidpf)0;
err = deflateInit(&stream, level);
err = deflateInit(&stream, Z_DEFAULT_COMPRESSION);
if (err != Z_OK) return err;
err = deflate(&stream, Z_FINISH);
@ -55,14 +55,3 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
err = deflateEnd(&stream);
return err;
}
/* ===========================================================================
*/
int ZEXPORT compress (dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
{
return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
}

122
security/nss/cmd/zlib/crc32.c
Просмотреть файл

@ -1,9 +1,9 @@
/* crc32.c -- compute the CRC-32 of a data stream
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: crc32.c,v 1.2 2003-02-08 08:50:37 wtc%netscape.com Exp $ */
/* This file was modified since it was taken from the zlib distribution */
/* $Id: crc32.c,v 1.3 2003-02-08 15:00:09 wtc%netscape.com Exp $ */
#include "zlib.h"
@ -45,7 +45,7 @@ local void make_crc_table()
int n, k;
uLong poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
static Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
/* make exclusive-or pattern from polynomial (0xedb88320L) */
poly = 0L;
@ -65,58 +65,58 @@ local void make_crc_table()
/* ========================================================================
* Table of CRC-32's of all single-byte values (made by make_crc_table)
*/
local const uLongf crc_table[256] = {
0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
local uLongf crc_table[256] = {
0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
0x2d02ef8dL
};
#endif
@ -124,12 +124,12 @@ local const uLongf crc_table[256] = {
/* =========================================================================
* This function can be used by asm versions of crc32()
*/
const uLongf * ZEXPORT get_crc_table()
uLongf *get_crc_table()
{
#ifdef DYNAMIC_CRC_TABLE
if (crc_table_empty) make_crc_table();
#endif
return (const uLongf *)crc_table;
return (uLongf *)crc_table;
}
/* ========================================================================= */
@ -139,7 +139,7 @@ const uLongf * ZEXPORT get_crc_table()
#define DO8(buf) DO4(buf); DO4(buf);
/* ========================================================================= */
uLong ZEXPORT crc32(crc, buf, len)
PR_PUBLIC_API(uLong) crc32(crc, buf, len)
uLong crc;
const Bytef *buf;
uInt len;
@ -149,7 +149,7 @@ uLong ZEXPORT crc32(crc, buf, len)
if (crc_table_empty)
make_crc_table();
#endif
crc = crc ^ 0xffffffffL;
crc = crc ^ 0xffffffffUL;
while (len >= 8)
{
DO8(buf);
@ -158,5 +158,5 @@ uLong ZEXPORT crc32(crc, buf, len)
if (len) do {
DO1(buf);
} while (--len);
return crc ^ 0xffffffffL;
return crc ^ 0xffffffffUL;
}

293
security/nss/cmd/zlib/deflate.c
Просмотреть файл

@ -1,8 +1,8 @@
/* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
/*
* ALGORITHM
*
@ -36,8 +36,8 @@
*
* REFERENCES
*
* Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
* Available in ftp://ds.internic.net/rfc/rfc1951.txt
* Deutsch, L.P.,"'Deflate' Compressed Data Format Specification".
* Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc
*
* A description of the Rabin and Karp algorithm is given in the book
* "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
@ -47,12 +47,11 @@
*
*/
/* @(#) $Id: deflate.c,v 1.2 2003-02-08 08:50:37 wtc%netscape.com Exp $ */
/* $Id: deflate.c,v 1.3 2003-02-08 15:00:09 wtc%netscape.com Exp $ */
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly ";
char deflate_copyright[] = " deflate 1.0.4 Copyright 1995-1996 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
@ -78,17 +77,15 @@ local block_state deflate_stored OF((deflate_state *s, int flush));
local block_state deflate_fast OF((deflate_state *s, int flush));
local block_state deflate_slow OF((deflate_state *s, int flush));
local void lm_init OF((deflate_state *s));
local uInt longest_match OF((deflate_state *s, IPos cur_match));
local void putShortMSB OF((deflate_state *s, uInt b));
local void flush_pending OF((z_streamp strm));
local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
local int read_buf OF((z_streamp strm, charf *buf, unsigned size));
#ifdef ASMV
void match_init OF((void)); /* asm code initialization */
uInt longest_match OF((deflate_state *s, IPos cur_match));
#else
local uInt longest_match OF((deflate_state *s, IPos cur_match));
#endif
#ifdef DEBUG
#ifdef DEBUG_NEVER
local void check_match OF((deflate_state *s, IPos start, IPos match,
int length));
#endif
@ -123,7 +120,7 @@ typedef struct config_s {
compress_func func;
} config;
local const config configuration_table[10] = {
local config configuration_table[10] = {
/* good lazy nice chain */
/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */
/* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */
@ -160,23 +157,14 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
* Insert string str in the dictionary and set match_head to the previous head
* of the hash chain (the most recent string with same hash key). Return
* the previous length of the hash chain.
* If this file is compiled with -DFASTEST, the compression level is forced
* to 1, and no hash chains are maintained.
* IN assertion: all calls to to INSERT_STRING are made with consecutive
* input characters and the first MIN_MATCH bytes of str are valid
* (except for the last MIN_MATCH-1 bytes of the input file).
*/
#ifdef FASTEST
#define INSERT_STRING(s, str, match_head) \
(UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
match_head = s->head[s->ins_h], \
s->head[s->ins_h] = (Pos)(str))
#else
#define INSERT_STRING(s, str, match_head) \
(UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \
s->head[s->ins_h] = (Pos)(str))
#endif
/* ===========================================================================
* Initialize the hash table (avoiding 64K overflow for 16 bit systems).
@ -184,10 +172,10 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
*/
#define CLEAR_HASH(s) \
s->head[s->hash_size-1] = NIL; \
zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
zmemzero((charf *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
/* ========================================================================= */
int ZEXPORT deflateInit_(strm, level, version, stream_size)
PR_PUBLIC_API(int) deflateInit_(strm, level, version, stream_size)
z_streamp strm;
int level;
const char *version;
@ -199,7 +187,7 @@ int ZEXPORT deflateInit_(strm, level, version, stream_size)
}
/* ========================================================================= */
int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
PR_PUBLIC_API(int) deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
version, stream_size)
z_streamp strm;
int level;
@ -212,14 +200,13 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
{
deflate_state *s;
int noheader = 0;
static const char* my_version = ZLIB_VERSION;
ushf *overlay;
/* We overlay pending_buf and d_buf+l_buf. This works since the average
* output size for (length,distance) codes is <= 24 bits.
*/
if (version == Z_NULL || version[0] != my_version[0] ||
if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
stream_size != sizeof(z_stream)) {
return Z_VERSION_ERROR;
}
@ -233,16 +220,13 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
if (strm->zfree == Z_NULL) strm->zfree = zcfree;
if (level == Z_DEFAULT_COMPRESSION) level = 6;
#ifdef FASTEST
level = 1;
#endif
if (windowBits < 0) { /* undocumented feature: suppress zlib header */
noheader = 1;
windowBits = -windowBits;
}
if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
windowBits < 9 || windowBits > 15 || level < 0 || level > 9 ||
windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
return Z_STREAM_ERROR;
}
@ -269,7 +253,6 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
s->pending_buf = (uchf *) overlay;
s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
s->pending_buf == Z_NULL) {
@ -288,7 +271,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
}
/* ========================================================================= */
int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
PR_PUBLIC_API(int) deflateSetDictionary (strm, dictionary, dictLength)
z_streamp strm;
const Bytef *dictionary;
uInt dictLength;
@ -307,11 +290,9 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
if (length < MIN_MATCH) return Z_OK;
if (length > MAX_DIST(s)) {
length = MAX_DIST(s);
#ifndef USE_DICT_HEAD
dictionary += dictLength - length; /* use the tail of the dictionary */
#endif
dictionary += dictLength - length;
}
zmemcpy(s->window, dictionary, length);
zmemcpy((charf *)s->window, dictionary, length);
s->strstart = length;
s->block_start = (long)length;
@ -329,7 +310,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
}
/* ========================================================================= */
int ZEXPORT deflateReset (strm)
PR_PUBLIC_API(int) deflateReset (strm)
z_streamp strm;
{
deflate_state *s;
@ -359,7 +340,7 @@ int ZEXPORT deflateReset (strm)
}
/* ========================================================================= */
int ZEXPORT deflateParams(strm, level, strategy)
PR_PUBLIC_API(int) deflateParams(strm, level, strategy)
z_streamp strm;
int level;
int strategy;
@ -433,7 +414,7 @@ local void flush_pending(strm)
}
/* ========================================================================= */
int ZEXPORT deflate (strm, flush)
PR_PUBLIC_API(int) deflate (strm, flush)
z_streamp strm;
int flush;
{
@ -567,87 +548,42 @@ int ZEXPORT deflate (strm, flush)
}
/* ========================================================================= */
int ZEXPORT deflateEnd (strm)
PR_PUBLIC_API(int) deflateEnd (strm)
z_streamp strm;
{
int status;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
status = strm->state->status;
if (status != INIT_STATE && status != BUSY_STATE &&
status != FINISH_STATE) {
return Z_STREAM_ERROR;
}
/* Deallocate in reverse order of allocations: */
TRY_FREE(strm, strm->state->pending_buf);
TRY_FREE(strm, strm->state->head);
TRY_FREE(strm, strm->state->prev);
TRY_FREE(strm, strm->state->window);
status = strm->state->status;
ZFREE(strm, strm->state);
strm->state = Z_NULL;
return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
}
/* =========================================================================
* Copy the source state to the destination state.
* To simplify the source, this is not supported for 16-bit MSDOS (which
* doesn't have enough memory anyway to duplicate compression states).
*/
int ZEXPORT deflateCopy (dest, source)
/* ========================================================================= */
PR_PUBLIC_API(int) deflateCopy (dest, source)
z_streamp dest;
z_streamp source;
{
#ifdef MAXSEG_64K
return Z_STREAM_ERROR;
#else
deflate_state *ds;
deflate_state *ss;
ushf *overlay;
if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
return Z_STREAM_ERROR;
}
ss = source->state;
*dest = *source;
return Z_STREAM_ERROR; /* to be implemented */
#if 0
dest->state = (struct internal_state FAR *)
(*dest->zalloc)(1, sizeof(deflate_state));
if (dest->state == Z_NULL) return Z_MEM_ERROR;
ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
if (ds == Z_NULL) return Z_MEM_ERROR;
dest->state = (struct internal_state FAR *) ds;
*ds = *ss;
ds->strm = dest;
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
ds->pending_buf = (uchf *) overlay;
if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
ds->pending_buf == Z_NULL) {
deflateEnd (dest);
return Z_MEM_ERROR;
}
/* following zmemcpy do not work for 16-bit MSDOS */
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
ds->l_desc.dyn_tree = ds->dyn_ltree;
ds->d_desc.dyn_tree = ds->dyn_dtree;
ds->bl_desc.dyn_tree = ds->bl_tree;
*(dest->state) = *(source->state);
return Z_OK;
#endif
}
@ -661,7 +597,7 @@ int ZEXPORT deflateCopy (dest, source)
*/
local int read_buf(strm, buf, size)
z_streamp strm;
Bytef *buf;
charf *buf;
unsigned size;
{
unsigned len = strm->avail_in;
@ -722,7 +658,6 @@ local void lm_init (s)
/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
* match.S. The code will be functionally equivalent.
*/
#ifndef FASTEST
local uInt longest_match(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
@ -857,70 +792,12 @@ local uInt longest_match(s, cur_match)
} while ((cur_match = prev[cur_match & wmask]) > limit
&& --chain_length != 0);
if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
if ((uInt)best_len <= s->lookahead) return best_len;
return s->lookahead;
}
#else /* FASTEST */
/* ---------------------------------------------------------------------------
* Optimized version for level == 1 only
*/
local uInt longest_match(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
{
register Bytef *scan = s->window + s->strstart; /* current string */
register Bytef *match; /* matched string */
register int len; /* length of current match */
register Bytef *strend = s->window + s->strstart + MAX_MATCH;
/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
* It is easy to get rid of this optimization if necessary.
*/
Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
Assert(cur_match < s->strstart, "no future");
match = s->window + cur_match;
/* Return failure if the match length is less than 2:
*/
if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
/* The check at best_len-1 can be removed because it will be made
* again later. (This heuristic is not always a win.)
* It is not necessary to compare scan[2] and match[2] since they
* are always equal when the other bytes match, given that
* the hash keys are equal and that HASH_BITS >= 8.
*/
scan += 2, match += 2;
Assert(*scan == *match, "match[2]?");
/* We check for insufficient lookahead only every 8th comparison;
* the 256th check will be made at strstart+258.
*/
do {
} while (*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
scan < strend);
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
len = MAX_MATCH - (int)(strend - scan);
if (len < MIN_MATCH) return MIN_MATCH - 1;
s->match_start = cur_match;
return len <= s->lookahead ? len : s->lookahead;
}
#endif /* FASTEST */
#endif /* ASMV */
#ifdef DEBUG
#ifdef DEBUG_NEVER
/* ===========================================================================
* Check that the match at match_start is indeed a match.
*/
@ -930,16 +807,18 @@ local void check_match(s, start, match, length)
int length;
{
/* check that the match is indeed a match */
if (zmemcmp(s->window + match,
s->window + start, length) != EQUAL) {
if (zmemcmp((charf *)s->window + match,
(charf *)s->window + start, length) != EQUAL) {
#if 0
fprintf(stderr, " start %u, match %u, length %d\n",
start, match, length);
#endif
do {
fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
} while (--length != 0);
z_error("invalid match");
}
if (z_verbose > 1) {
if (verbose > 1) {
fprintf(stderr,"\\[%d,%d]", start-match, length);
do { putc(s->window[start++], stderr); } while (--length != 0);
}
@ -984,35 +863,33 @@ local void fill_window(s)
*/
} else if (s->strstart >= wsize+MAX_DIST(s)) {
zmemcpy(s->window, s->window+wsize, (unsigned)wsize);
zmemcpy((charf *)s->window, (charf *)s->window+wsize,
(unsigned)wsize);
s->match_start -= wsize;
s->strstart -= wsize; /* we now have strstart >= MAX_DIST */
s->block_start -= (long) wsize;
/* Slide the hash table (could be avoided with 32 bit values
at the expense of memory usage). We slide even when level == 0
to keep the hash table consistent if we switch back to level > 0
later. (Using level 0 permanently is not an optimal usage of
zlib, so we don't care about this pathological case.)
at the expense of memory usage):
*/
n = s->hash_size;
p = &s->head[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
} while (--n);
n = s->hash_size;
p = &s->head[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
} while (--n);
n = wsize;
p = &s->prev[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
/* If n is not on any hash chain, prev[n] is garbage but
* its value will never be used.
*/
} while (--n);
n = wsize;
#ifndef FASTEST
p = &s->prev[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
/* If n is not on any hash chain, prev[n] is garbage but
* its value will never be used.
*/
} while (--n);
#endif
more += wsize;
}
if (s->strm->avail_in == 0) return;
@ -1030,7 +907,8 @@ local void fill_window(s)
*/
Assert(more >= 2, "more < 2");
n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);
n = read_buf(s->strm, (charf *)s->window + s->strstart + s->lookahead,
more);
s->lookahead += n;
/* Initialize the hash value now that we have some input: */
@ -1075,24 +953,12 @@ local void fill_window(s)
* This function does not insert new strings in the dictionary since
* uncompressible data is probably not useful. This function is used
* only for the level=0 compression option.
* NOTE: this function should be optimized to avoid extra copying from
* window to pending_buf.
* NOTE: this function should be optimized to avoid extra copying.
*/
local block_state deflate_stored(s, flush)
deflate_state *s;
int flush;
{
/* Stored blocks are limited to 0xffff bytes, pending_buf is limited
* to pending_buf_size, and each stored block has a 5 byte header:
*/
ulg max_block_size = 0xffff;
ulg max_start;
if (max_block_size > s->pending_buf_size - 5) {
max_block_size = s->pending_buf_size - 5;
}
/* Copy as much as possible from input to output: */
for (;;) {
/* Fill the window as much as possible: */
if (s->lookahead <= 1) {
@ -1110,17 +976,14 @@ local block_state deflate_stored(s, flush)
s->strstart += s->lookahead;
s->lookahead = 0;
/* Emit a stored block if pending_buf will be full: */
max_start = s->block_start + max_block_size;
if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
/* Stored blocks are limited to 0xffff bytes: */
if (s->strstart == 0 || s->strstart > 0xfffe) {
/* strstart == 0 is possible when wraparound on 16-bit machine */
s->lookahead = (uInt)(s->strstart - max_start);
s->strstart = (uInt)max_start;
FLUSH_BLOCK(s, 0);
s->lookahead = s->strstart - 0xffff;
s->strstart = 0xffff;
}
/* Flush if we may have to slide, otherwise block_start may become
* negative and the data will be gone:
*/
/* Emit a stored block if it is large enough: */
if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
FLUSH_BLOCK(s, 0);
}
@ -1180,15 +1043,14 @@ local block_state deflate_fast(s, flush)
if (s->match_length >= MIN_MATCH) {
check_match(s, s->strstart, s->match_start, s->match_length);
_tr_tally_dist(s, s->strstart - s->match_start,
s->match_length - MIN_MATCH, bflush);
bflush = _tr_tally(s, s->strstart - s->match_start,
s->match_length - MIN_MATCH);
s->lookahead -= s->match_length;
/* Insert new strings in the hash table only if the match length
* is not too large. This saves time but degrades compression.
*/
#ifndef FASTEST
if (s->match_length <= s->max_insert_length &&
s->lookahead >= MIN_MATCH) {
s->match_length--; /* string at strstart already in hash table */
@ -1200,9 +1062,7 @@ local block_state deflate_fast(s, flush)
*/
} while (--s->match_length != 0);
s->strstart++;
} else
#endif
{
} else {
s->strstart += s->match_length;
s->match_length = 0;
s->ins_h = s->window[s->strstart];
@ -1217,7 +1077,7 @@ local block_state deflate_fast(s, flush)
} else {
/* No match, output a literal byte */
Tracevv((stderr,"%c", s->window[s->strstart]));
_tr_tally_lit (s, s->window[s->strstart], bflush);
bflush = _tr_tally (s, 0, s->window[s->strstart]);
s->lookahead--;
s->strstart++;
}
@ -1296,8 +1156,8 @@ local block_state deflate_slow(s, flush)
check_match(s, s->strstart-1, s->prev_match, s->prev_length);
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
s->prev_length - MIN_MATCH, bflush);
bflush = _tr_tally(s, s->strstart -1 - s->prev_match,
s->prev_length - MIN_MATCH);
/* Insert in hash table all strings up to the end of the match.
* strstart-1 and strstart are already inserted. If there is not
@ -1323,8 +1183,7 @@ local block_state deflate_slow(s, flush)
* is longer, truncate the previous match to a single literal.
*/
Tracevv((stderr,"%c", s->window[s->strstart-1]));
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
if (bflush) {
if (_tr_tally (s, 0, s->window[s->strstart-1])) {
FLUSH_BLOCK_ONLY(s, 0);
}
s->strstart++;
@ -1342,7 +1201,7 @@ local block_state deflate_slow(s, flush)
Assert (flush != Z_NO_FLUSH, "no flush?");
if (s->match_available) {
Tracevv((stderr,"%c", s->window[s->strstart-1]));
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
_tr_tally (s, 0, s->window[s->strstart-1]);
s->match_available = 0;
}
FLUSH_BLOCK(s, flush == Z_FINISH);

53
security/nss/cmd/zlib/deflate.h
Просмотреть файл

@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
* Copyright (C) 1995-2002 Jean-loup Gailly
* Copyright (C) 1995-1996 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -8,7 +8,7 @@
subject to change. Applications should only use zlib.h.
*/
/* @(#) $Id: deflate.h,v 1.2 2003-02-08 08:50:38 wtc%netscape.com Exp $ */
/* $Id: deflate.h,v 1.3 2003-02-08 15:00:10 wtc%netscape.com Exp $ */
#ifndef _DEFLATE_H
#define _DEFLATE_H
@ -83,7 +83,6 @@ typedef struct internal_state {
z_streamp strm; /* pointer back to this zlib stream */
int status; /* as the name implies */
Bytef *pending_buf; /* output still pending */
ulg pending_buf_size; /* size of pending_buf */
Bytef *pending_out; /* next pending byte to output to the stream */
int pending; /* nb of bytes in the pending buffer */
int noheader; /* suppress zlib header and adler32 */
@ -230,12 +229,12 @@ typedef struct internal_state {
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
ulg compressed_len; /* total bit length of compressed file */
uInt matches; /* number of string matches in current block */
int last_eob_len; /* bit length of EOB code for last block */
#ifdef DEBUG
ulg compressed_len; /* total bit length of compressed file mod 2^32 */
ulg bits_sent; /* bit length of compressed data sent mod 2^32 */
ulg bits_sent; /* bit length of the compressed data */
#endif
ush bi_buf;
@ -268,51 +267,9 @@ typedef struct internal_state {
/* in trees.c */
void _tr_init OF((deflate_state *s));
int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
ulg _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));
void _tr_align OF((deflate_state *s));
void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));
#define d_code(dist) \
((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
/* Mapping from a distance to a distance code. dist is the distance - 1 and
* must not have side effects. _dist_code[256] and _dist_code[257] are never
* used.
*/
#ifndef DEBUG
/* Inline versions of _tr_tally for speed: */
#if defined(GEN_TREES_H) || !defined(STDC)
extern uch _length_code[];
extern uch _dist_code[];
#else
extern const uch _length_code[];
extern const uch _dist_code[];
#endif
# define _tr_tally_lit(s, c, flush) \
{ uch cc = (c); \
s->d_buf[s->last_lit] = 0; \
s->l_buf[s->last_lit++] = cc; \
s->dyn_ltree[cc].Freq++; \
flush = (s->last_lit == s->lit_bufsize-1); \
}
# define _tr_tally_dist(s, distance, length, flush) \
{ uch len = (length); \
ush dist = (distance); \
s->d_buf[s->last_lit] = dist; \
s->l_buf[s->last_lit++] = len; \
dist--; \
s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
s->dyn_dtree[d_code(dist)].Freq++; \
flush = (s->last_lit == s->lit_bufsize-1); \
}
#else
# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
# define _tr_tally_dist(s, distance, length, flush) \
flush = _tr_tally(s, distance, length)
#endif
#endif

125
security/nss/cmd/zlib/example.c
Просмотреть файл

@ -1,9 +1,9 @@
/* example.c -- usage example of the zlib compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: example.c,v 1.2 2003-02-08 08:50:38 wtc%netscape.com Exp $ */
/* $Id: example.c,v 1.3 2003-02-08 15:00:10 wtc%netscape.com Exp $ */
#include <stdio.h>
#include "zlib.h"
@ -15,12 +15,6 @@
extern void exit OF((int));
#endif
#if defined(VMS) || defined(RISCOS)
# define TESTFILE "foo-gz"
#else
# define TESTFILE "foo.gz"
#endif
#define CHECK_ERR(err, msg) { \
if (err != Z_OK) { \
fprintf(stderr, "%s error: %d\n", msg, err); \
@ -47,7 +41,7 @@ void test_large_deflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_large_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_flush OF((Byte *compr, uLong *comprLen));
void test_flush OF((Byte *compr, uLong comprLen));
void test_sync OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_dict_deflate OF((Byte *compr, uLong comprLen));
@ -75,9 +69,8 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad uncompress\n");
exit(1);
} else {
printf("uncompress(): %s\n", (char *)uncompr);
printf("uncompress(): %s\n", uncompr);
}
}
@ -85,31 +78,24 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
* Test read/write of .gz files
*/
void test_gzio(out, in, uncompr, uncomprLen)
const char *out; /* compressed output file */
const char *in; /* compressed input file */
const char *out; /* output file */
const char *in; /* input file */
Byte *uncompr;
int uncomprLen;
{
int err;
int len = strlen(hello)+1;
gzFile file;
z_off_t pos;
file = gzopen(out, "wb");
if (file == NULL) {
fprintf(stderr, "gzopen error\n");
exit(1);
}
gzputc(file, 'h');
if (gzputs(file, "ello") != 4) {
fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
exit(1);
if (gzwrite(file, (const voidp)hello, (unsigned)len) != len) {
fprintf(stderr, "gzwrite err: %s\n", gzerror(file, &err));
}
if (gzprintf(file, ", %s!", "hello") != 8) {
fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
exit(1);
}
gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
gzclose(file);
file = gzopen(in, "rb");
@ -121,41 +107,14 @@ void test_gzio(out, in, uncompr, uncomprLen)
uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
if (uncomprLen != len) {
fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
exit(1);
} else {
printf("gzread(): %s\n", (char *)uncompr);
}
pos = gzseek(file, -8L, SEEK_CUR);
if (pos != 6 || gztell(file) != pos) {
fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
(long)pos, (long)gztell(file));
exit(1);
}
if (gzgetc(file) != ' ') {
fprintf(stderr, "gzgetc error\n");
exit(1);
}
gzgets(file, (char*)uncompr, uncomprLen);
uncomprLen = strlen((char*)uncompr);
if (uncomprLen != 6) { /* "hello!" */
fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello+7)) {
fprintf(stderr, "bad gzgets after gzseek\n");
exit(1);
} else {
printf("gzgets() after gzseek: %s\n", (char *)uncompr);
}
gzclose(file);
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad gzread\n");
} else {
printf("gzread(): %s\n", uncompr);
}
}
/* ===========================================================================
@ -212,13 +171,12 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen)
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = 0;
d_stream.next_out = uncompr;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_in = compr;
d_stream.next_out = uncompr;
while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
err = inflate(&d_stream, Z_NO_FLUSH);
@ -231,9 +189,8 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate\n");
exit(1);
} else {
printf("inflate(): %s\n", (char *)uncompr);
printf("inflate(): %s\n", uncompr);
}
}
@ -266,7 +223,6 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
CHECK_ERR(err, "deflate");
if (c_stream.avail_in != 0) {
fprintf(stderr, "deflate not greedy\n");
exit(1);
}
/* Feed in already compressed data and switch to no compression: */
@ -286,7 +242,6 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -308,12 +263,12 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
for (;;) {
d_stream.next_out = uncompr; /* discard the output */
d_stream.avail_out = (uInt)uncomprLen;
@ -327,7 +282,6 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
exit(1);
} else {
printf("large_inflate(): OK\n");
}
@ -338,7 +292,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
*/
void test_flush(compr, comprLen)
Byte *compr;
uLong *comprLen;
uLong comprLen;
{
z_stream c_stream; /* compression stream */
int err;
@ -354,7 +308,7 @@ void test_flush(compr, comprLen)
c_stream.next_in = (Bytef*)hello;
c_stream.next_out = compr;
c_stream.avail_in = 3;
c_stream.avail_out = (uInt)*comprLen;
c_stream.avail_out = (uInt)comprLen;
err = deflate(&c_stream, Z_FULL_FLUSH);
CHECK_ERR(err, "deflate");
@ -367,8 +321,6 @@ void test_flush(compr, comprLen)
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
*comprLen = c_stream.total_out;
}
/* ===========================================================================
@ -387,13 +339,12 @@ void test_sync(compr, comprLen, uncompr, uncomprLen)
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = 2; /* just read the zlib header */
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_in = compr;
d_stream.next_out = uncompr;
d_stream.avail_in = 2; /* just read the zlib header */
d_stream.avail_out = (uInt)uncomprLen;
inflate(&d_stream, Z_NO_FLUSH);
@ -407,12 +358,11 @@ void test_sync(compr, comprLen, uncompr, uncomprLen)
if (err != Z_DATA_ERROR) {
fprintf(stderr, "inflate should report DATA_ERROR\n");
/* Because of incorrect adler32 */
exit(1);
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
printf("after inflateSync(): hel%s\n", (char *)uncompr);
printf("after inflateSync(): hel%s\n", uncompr);
}
/* ===========================================================================
@ -446,7 +396,6 @@ void test_dict_deflate(compr, comprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -468,12 +417,12 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
d_stream.next_out = uncompr;
d_stream.avail_out = (uInt)uncomprLen;
@ -496,9 +445,8 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate with dict\n");
exit(1);
} else {
printf("inflate with dictionary: %s\n", (char *)uncompr);
printf("inflate with dictionary: %s\n", uncompr);
}
}
@ -513,9 +461,8 @@ int main(argc, argv)
Byte *compr, *uncompr;
uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
uLong uncomprLen = comprLen;
static const char* myVersion = ZLIB_VERSION;
if (zlibVersion()[0] != myVersion[0]) {
if (zlibVersion()[0] != ZLIB_VERSION[0]) {
fprintf(stderr, "incompatible zlib version\n");
exit(1);
@ -532,10 +479,11 @@ int main(argc, argv)
printf("out of memory\n");
exit(1);
}
test_compress(compr, comprLen, uncompr, uncomprLen);
test_gzio((argc > 1 ? argv[1] : TESTFILE),
(argc > 2 ? argv[2] : TESTFILE),
test_gzio((argc > 1 ? argv[1] : "foo.gz"),
(argc > 2 ? argv[2] : "foo.gz"),
uncompr, (int)uncomprLen);
test_deflate(compr, comprLen);
@ -544,9 +492,8 @@ int main(argc, argv)
test_large_deflate(compr, comprLen, uncompr, uncomprLen);
test_large_inflate(compr, comprLen, uncompr, uncomprLen);
test_flush(compr, &comprLen);
test_flush(compr, comprLen);
test_sync(compr, comprLen, uncompr, uncomprLen);
comprLen = uncomprLen;
test_dict_deflate(compr, comprLen);
test_dict_inflate(compr, comprLen, uncompr, uncomprLen);

468
security/nss/cmd/zlib/gzio.c
Просмотреть файл

@ -1,11 +1,10 @@
/* gzio.c -- IO on .gz files
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Compile this file with -DNO_DEFLATE to avoid the compression code.
*/
/* This file was modified since it was taken from the zlib distribution */
/* @(#) $Id: gzio.c,v 1.2 2003-02-08 08:50:38 wtc%netscape.com Exp $ */
/* $Id: gzio.c,v 1.3 2003-02-08 15:00:10 wtc%netscape.com Exp $ */
#include <stdio.h>
@ -13,16 +12,7 @@
struct internal_state {int dummy;}; /* for buggy compilers */
#ifndef Z_BUFSIZE
# ifdef MAXSEG_64K
# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */
# else
# define Z_BUFSIZE 16384
# endif
#endif
#ifndef Z_PRINTF_BUFSIZE
# define Z_PRINTF_BUFSIZE 4096
#endif
#define Z_BUFSIZE 4096
#define ALLOC(size) malloc(size)
#define TRYFREE(p) {if (p) free(p);}
@ -49,12 +39,10 @@ typedef struct gz_stream {
char *path; /* path name for debugging only */
int transparent; /* 1 if input file is not a .gz file */
char mode; /* 'w' or 'r' */
long startpos; /* start of compressed data in file (header skipped) */
} gz_stream;
local gzFile gz_open OF((const char *path, const char *mode, int fd));
local int do_flush OF((gzFile file, int flush));
local int get_byte OF((gz_stream *s));
local void check_header OF((gz_stream *s));
local int destroy OF((gz_stream *s));
@ -77,7 +65,6 @@ local gzFile gz_open (path, mode, fd)
{
int err;
int level = Z_DEFAULT_COMPRESSION; /* compression level */
int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */
char *p = (char*)mode;
gz_stream *s;
char fmode[80]; /* copy of mode, without the compression level */
@ -113,10 +100,6 @@ local gzFile gz_open (path, mode, fd)
if (*p == 'w' || *p == 'a') s->mode = 'w';
if (*p >= '0' && *p <= '9') {
level = *p - '0';
} else if (*p == 'f') {
strategy = Z_FILTERED;
} else if (*p == 'h') {
strategy = Z_HUFFMAN_ONLY;
} else {
*m++ = *p; /* copy the mode */
}
@ -124,28 +107,19 @@ local gzFile gz_open (path, mode, fd)
if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL;
if (s->mode == 'w') {
#ifdef NO_DEFLATE
err = Z_STREAM_ERROR;
#else
err = deflateInit2(&(s->stream), level,
Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy);
Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0);
/* windowBits is passed < 0 to suppress zlib header */
s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
#endif
if (err != Z_OK || s->outbuf == Z_NULL) {
return destroy(s), (gzFile)Z_NULL;
}
} else {
err = inflateInit2(&(s->stream), -MAX_WBITS);
s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE);
err = inflateInit2(&(s->stream), -MAX_WBITS);
/* windowBits is passed < 0 to tell that there is no zlib header.
* Note that in this case inflate *requires* an extra "dummy" byte
* after the compressed stream in order to complete decompression and
* return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are
* present after the compressed stream.
*/
if (err != Z_OK || s->inbuf == Z_NULL) {
return destroy(s), (gzFile)Z_NULL;
}
@ -153,7 +127,7 @@ local gzFile gz_open (path, mode, fd)
s->stream.avail_out = Z_BUFSIZE;
errno = 0;
s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode);
s->file = fd < 0 ? FOPEN(path, fmode) : (FILE*)fdopen(fd, fmode);
if (s->file == NULL) {
return destroy(s), (gzFile)Z_NULL;
@ -163,26 +137,20 @@ local gzFile gz_open (path, mode, fd)
*/
fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
s->startpos = 10L;
/* We use 10L instead of ftell(s->file) to because ftell causes an
* fflush on some systems. This version of the library doesn't use
* startpos anyway in write mode, so this initialization is not
* necessary.
*/
} else {
check_header(s); /* skip the .gz header */
s->startpos = (ftell(s->file) - s->stream.avail_in);
}
return (gzFile)s;
}
/* ===========================================================================
Opens a gzip (.gz) file for reading or writing.
*/
gzFile ZEXPORT gzopen (path, mode)
const char *path;
const char *mode;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern gzFile) gzopen (const char *path, const char *mode)
#else
extern gzFile EXPORT gzopen OF((const char *path, const char *mode))
#endif
{
return gz_open (path, mode, -1);
}
@ -191,9 +159,11 @@ gzFile ZEXPORT gzopen (path, mode)
Associate a gzFile with the file descriptor fd. fd is not dup'ed here
to mimic the behavio(u)r of fdopen.
*/
gzFile ZEXPORT gzdopen (fd, mode)
int fd;
const char *mode;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern gzFile) gzdopen (int fd, const char *mode)
#else
extern gzFile EXPORT gzdopen OF((int fd, const char *mode))
#endif
{
char name[20];
@ -203,31 +173,6 @@ gzFile ZEXPORT gzdopen (fd, mode)
return gz_open (name, mode, fd);
}
/* ===========================================================================
* Update the compression level and strategy
*/
int ZEXPORT gzsetparams (file, level, strategy)
gzFile file;
int level;
int strategy;
{
gz_stream *s = (gz_stream*)file;
if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
/* Make room to allow flushing */
if (s->stream.avail_out == 0) {
s->stream.next_out = s->outbuf;
if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
s->z_err = Z_ERRNO;
}
s->stream.avail_out = Z_BUFSIZE;
}
return deflateParams (&(s->stream), level, strategy);
}
/* ===========================================================================
Read a byte from a gz_stream; update next_in and avail_in. Return EOF
for end of file.
@ -272,11 +217,8 @@ local void check_header(s)
for (len = 0; len < 2; len++) {
c = get_byte(s);
if (c != gz_magic[len]) {
if (len != 0) s->stream.avail_in++, s->stream.next_in--;
if (c != EOF) {
s->stream.avail_in++, s->stream.next_in--;
s->transparent = 1;
}
s->transparent = 1;
if (c != EOF) s->stream.avail_in++, s->stream.next_in--;
s->z_err = s->stream.avail_in != 0 ? Z_OK : Z_STREAM_END;
return;
}
@ -323,21 +265,14 @@ local int destroy (s)
TRYFREE(s->msg);
if (s->stream.state != NULL) {
if (s->mode == 'w') {
#ifdef NO_DEFLATE
err = Z_STREAM_ERROR;
#else
err = deflateEnd(&(s->stream));
#endif
} else if (s->mode == 'r') {
err = inflateEnd(&(s->stream));
}
if (s->mode == 'w') {
err = deflateEnd(&(s->stream));
} else if (s->mode == 'r') {
err = inflateEnd(&(s->stream));
}
}
if (s->file != NULL && fclose(s->file)) {
#ifdef ESPIPE
if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
#endif
err = Z_ERRNO;
err = Z_ERRNO;
}
if (s->z_err < 0) err = s->z_err;
@ -352,13 +287,14 @@ local int destroy (s)
Reads the given number of uncompressed bytes from the compressed file.
gzread returns the number of bytes actually read (0 for end of file).
*/
int ZEXPORT gzread (file, buf, len)
gzFile file;
voidp buf;
unsigned len;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzread (gzFile file, voidp buf, unsigned len)
#else
extern int EXPORT gzread OF((gzFile file, voidp buf, unsigned len))
#endif
{
gz_stream *s = (gz_stream*)file;
Bytef *start = (Bytef*)buf; /* starting point for crc computation */
Bytef *start = buf; /* starting point for crc computation */
Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */
if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR;
@ -366,8 +302,7 @@ int ZEXPORT gzread (file, buf, len)
if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1;
if (s->z_err == Z_STREAM_END) return 0; /* EOF */
next_out = (Byte*)buf;
s->stream.next_out = (Bytef*)buf;
s->stream.next_out = next_out = buf;
s->stream.avail_out = len;
while (s->stream.avail_out != 0) {
@ -388,11 +323,7 @@ int ZEXPORT gzread (file, buf, len)
s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out,
s->file);
}
len -= s->stream.avail_out;
s->stream.total_in += (uLong)len;
s->stream.total_out += (uLong)len;
if (len == 0) s->z_eof = 1;
return (int)len;
return (int)(len - s->stream.avail_out);
}
if (s->stream.avail_in == 0 && !s->z_eof) {
@ -414,22 +345,13 @@ int ZEXPORT gzread (file, buf, len)
s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
start = s->stream.next_out;
if (getLong(s) != s->crc) {
if (getLong(s) != s->crc || getLong(s) != s->stream.total_out) {
s->z_err = Z_DATA_ERROR;
} else {
(void)getLong(s);
/* The uncompressed length returned by above getlong() may
* be different from s->stream.total_out) in case of
* concatenated .gz files. Check for such files:
*/
/* Check for concatenated .gz files: */
check_header(s);
if (s->z_err == Z_OK) {
uLong total_in = s->stream.total_in;
uLong total_out = s->stream.total_out;
inflateReset(&(s->stream));
s->stream.total_in = total_in;
s->stream.total_out = total_out;
s->crc = crc32(0L, Z_NULL, 0);
}
}
@ -441,58 +363,21 @@ int ZEXPORT gzread (file, buf, len)
return (int)(len - s->stream.avail_out);
}
/* ===========================================================================
Reads one byte from the compressed file. gzgetc returns this byte
or -1 in case of end of file or error.
*/
int ZEXPORT gzgetc(file)
gzFile file;
{
unsigned char c;
return gzread(file, &c, 1) == 1 ? c : -1;
}
/* ===========================================================================
Reads bytes from the compressed file until len-1 characters are
read, or a newline character is read and transferred to buf, or an
end-of-file condition is encountered. The string is then terminated
with a null character.
gzgets returns buf, or Z_NULL in case of error.
The current implementation is not optimized at all.
*/
char * ZEXPORT gzgets(file, buf, len)
gzFile file;
char *buf;
int len;
{
char *b = buf;
if (buf == Z_NULL || len <= 0) return Z_NULL;
while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ;
*buf = '\0';
return b == buf && len > 0 ? Z_NULL : b;
}
#ifndef NO_DEFLATE
/* ===========================================================================
Writes the given number of uncompressed bytes into the compressed file.
gzwrite returns the number of bytes actually written (0 in case of error).
*/
int ZEXPORT gzwrite (file, buf, len)
gzFile file;
const voidp buf;
unsigned len;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzwrite (gzFile file, const voidp buf, unsigned len)
#else
extern int EXPORT gzwrite OF((gzFile file, const voidp buf, unsigned len))
#endif
{
gz_stream *s = (gz_stream*)file;
if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
s->stream.next_in = (Bytef*)buf;
s->stream.next_in = buf;
s->stream.avail_in = len;
while (s->stream.avail_in != 0) {
@ -509,97 +394,22 @@ int ZEXPORT gzwrite (file, buf, len)
s->z_err = deflate(&(s->stream), Z_NO_FLUSH);
if (s->z_err != Z_OK) break;
}
s->crc = crc32(s->crc, (const Bytef *)buf, len);
s->crc = crc32(s->crc, buf, len);
return (int)(len - s->stream.avail_in);
}
/* ===========================================================================
Converts, formats, and writes the args to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of
uncompressed bytes actually written (0 in case of error).
*/
#ifdef STDC
#include <stdarg.h>
int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...)
{
char buf[Z_PRINTF_BUFSIZE];
va_list va;
int len;
va_start(va, format);
#ifdef HAS_vsnprintf
(void)vsnprintf(buf, sizeof(buf), format, va);
#else
(void)vsprintf(buf, format, va);
#endif
va_end(va);
len = strlen(buf); /* some *sprintf don't return the nb of bytes written */
if (len <= 0) return 0;
return gzwrite(file, buf, (unsigned)len);
}
#else /* not ANSI C */
int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
gzFile file;
const char *format;
int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
{
char buf[Z_PRINTF_BUFSIZE];
int len;
#ifdef HAS_snprintf
snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
#else
sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
#endif
len = strlen(buf); /* old sprintf doesn't return the nb of bytes written */
if (len <= 0) return 0;
return gzwrite(file, buf, len);
}
#endif
/* ===========================================================================
Writes c, converted to an unsigned char, into the compressed file.
gzputc returns the value that was written, or -1 in case of error.
*/
int ZEXPORT gzputc(file, c)
gzFile file;
int c;
{
unsigned char cc = (unsigned char) c; /* required for big endian systems */
return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1;
}
/* ===========================================================================
Writes the given null-terminated string to the compressed file, excluding
the terminating null character.
gzputs returns the number of characters written, or -1 in case of error.
*/
int ZEXPORT gzputs(file, s)
gzFile file;
const char *s;
{
return gzwrite(file, (char*)s, (unsigned)strlen(s));
}
/* ===========================================================================
Flushes all pending output into the compressed file. The parameter
flush is as in the deflate() function.
gzflush should be called only when strictly necessary because it can
degrade compression.
*/
local int do_flush (file, flush)
gzFile file;
int flush;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzflush (gzFile file, int flush)
#else
extern int EXPORT gzflush OF((gzFile file, int flush))
#endif
{
uInt len;
int done = 0;
@ -623,9 +433,6 @@ local int do_flush (file, flush)
if (done) break;
s->z_err = deflate(&(s->stream), flush);
/* Ignore the second of two consecutive flushes: */
if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
/* deflate has finished flushing only when it hasn't used up
* all the available space in the output buffer:
*/
@ -633,155 +440,9 @@ local int do_flush (file, flush)
if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break;
}
return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
}
int ZEXPORT gzflush (file, flush)
gzFile file;
int flush;
{
gz_stream *s = (gz_stream*)file;
int err = do_flush (file, flush);
if (err) return err;
fflush(s->file);
return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
}
#endif /* NO_DEFLATE */
/* ===========================================================================
Sets the starting position for the next gzread or gzwrite on the given
compressed file. The offset represents a number of bytes in the
gzseek returns the resulting offset location as measured in bytes from
the beginning of the uncompressed stream, or -1 in case of error.
SEEK_END is not implemented, returns error.
In this version of the library, gzseek can be extremely slow.
*/
z_off_t ZEXPORT gzseek (file, offset, whence)
gzFile file;
z_off_t offset;
int whence;
{
gz_stream *s = (gz_stream*)file;
if (s == NULL || whence == SEEK_END ||
s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
return -1L;
}
if (s->mode == 'w') {
#ifdef NO_DEFLATE
return -1L;
#else
if (whence == SEEK_SET) {
offset -= s->stream.total_in;
}
if (offset < 0) return -1L;
/* At this point, offset is the number of zero bytes to write. */
if (s->inbuf == Z_NULL) {
s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
zmemzero(s->inbuf, Z_BUFSIZE);
}
while (offset > 0) {
uInt size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (uInt)offset;
size = gzwrite(file, s->inbuf, size);
if (size == 0) return -1L;
offset -= size;
}
return (z_off_t)s->stream.total_in;
#endif
}
/* Rest of function is for reading only */
/* compute absolute position */
if (whence == SEEK_CUR) {
offset += s->stream.total_out;
}
if (offset < 0) return -1L;
if (s->transparent) {
/* map to fseek */
s->stream.avail_in = 0;
s->stream.next_in = s->inbuf;
if (fseek(s->file, offset, SEEK_SET) < 0) return -1L;
s->stream.total_in = s->stream.total_out = (uLong)offset;
return offset;
}
/* For a negative seek, rewind and use positive seek */
if ((uLong)offset >= s->stream.total_out) {
offset -= s->stream.total_out;
} else if (gzrewind(file) < 0) {
return -1L;
}
/* offset is now the number of bytes to skip. */
if (offset != 0 && s->outbuf == Z_NULL) {
s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
}
while (offset > 0) {
int size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (int)offset;
size = gzread(file, s->outbuf, (uInt)size);
if (size <= 0) return -1L;
offset -= size;
}
return (z_off_t)s->stream.total_out;
}
/* ===========================================================================
Rewinds input file.
*/
int ZEXPORT gzrewind (file)
gzFile file;
{
gz_stream *s = (gz_stream*)file;
if (s == NULL || s->mode != 'r') return -1;
s->z_err = Z_OK;
s->z_eof = 0;
s->stream.avail_in = 0;
s->stream.next_in = s->inbuf;
s->crc = crc32(0L, Z_NULL, 0);
if (s->startpos == 0) { /* not a compressed file */
rewind(s->file);
return 0;
}
(void) inflateReset(&s->stream);
return fseek(s->file, s->startpos, SEEK_SET);
}
/* ===========================================================================
Returns the starting position for the next gzread or gzwrite on the
given compressed file. This position represents a number of bytes in the
uncompressed data stream.
*/
z_off_t ZEXPORT gztell (file)
gzFile file;
{
return gzseek(file, 0L, SEEK_CUR);
}
/* ===========================================================================
Returns 1 when EOF has previously been detected reading the given
input stream, otherwise zero.
*/
int ZEXPORT gzeof (file)
gzFile file;
{
gz_stream *s = (gz_stream*)file;
return (s == NULL || s->mode != 'r') ? 0 : s->z_eof;
}
/* ===========================================================================
Outputs a long in LSB order to the given file
@ -798,8 +459,7 @@ local void putLong (file, x)
}
/* ===========================================================================
Reads a long in LSB order from the given gz_stream. Sets z_err in case
of error.
Reads a long in LSB order from the given gz_stream. Sets
*/
local uLong getLong (s)
gz_stream *s;
@ -819,8 +479,11 @@ local uLong getLong (s)
Flushes all pending output if necessary, closes the compressed file
and deallocates all the (de)compression state.
*/
int ZEXPORT gzclose (file)
gzFile file;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzclose (gzFile file)
#else
extern int EXPORT gzclose OF((gzFile file))
#endif
{
int err;
gz_stream *s = (gz_stream*)file;
@ -828,17 +491,14 @@ int ZEXPORT gzclose (file)
if (s == NULL) return Z_STREAM_ERROR;
if (s->mode == 'w') {
#ifdef NO_DEFLATE
return Z_STREAM_ERROR;
#else
err = do_flush (file, Z_FINISH);
if (err != Z_OK) return destroy((gz_stream*)file);
err = gzflush (file, Z_FINISH);
if (err != Z_OK) return destroy(file);
putLong (s->file, s->crc);
putLong (s->file, s->stream.total_in);
#endif
}
return destroy((gz_stream*)file);
return destroy(file);
}
/* ===========================================================================
@ -848,9 +508,11 @@ int ZEXPORT gzclose (file)
errnum is set to Z_ERRNO and the application may consult errno
to get the exact error code.
*/
const char* ZEXPORT gzerror (file, errnum)
gzFile file;
int *errnum;
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern const char *) gzerror (gzFile file, int *errnum)
#else
extern const char * EXPORT gzerror OF((gzFile file, int *errnum))
#endif
{
char *m;
gz_stream *s = (gz_stream*)file;

403
security/nss/cmd/zlib/infblock.c
Просмотреть файл

@ -1,403 +0,0 @@
/* infblock.c -- interpret and process block types to last block
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "zutil.h"
#include "infblock.h"
#include "inftrees.h"
#include "infcodes.h"
#include "infutil.h"
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
/* simplify the use of the inflate_huft type with some defines */
#define exop word.what.Exop
#define bits word.what.Bits
/* Table for deflate from PKZIP's appnote.txt. */
local const uInt border[] = { /* Order of the bit length code lengths */
16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
/*
Notes beyond the 1.93a appnote.txt:
1. Distance pointers never point before the beginning of the output
stream.
2. Distance pointers can point back across blocks, up to 32k away.
3. There is an implied maximum of 7 bits for the bit length table and
15 bits for the actual data.
4. If only one code exists, then it is encoded using one bit. (Zero
would be more efficient, but perhaps a little confusing.) If two
codes exist, they are coded using one bit each (0 and 1).
5. There is no way of sending zero distance codes--a dummy must be
sent if there are none. (History: a pre 2.0 version of PKZIP would
store blocks with no distance codes, but this was discovered to be
too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
zero distance codes, which is sent as one code of zero bits in
length.
6. There are up to 286 literal/length codes. Code 256 represents the
end-of-block. Note however that the static length tree defines
288 codes just to fill out the Huffman codes. Codes 286 and 287
cannot be used though, since there is no length base or extra bits
defined for them. Similarily, there are up to 30 distance codes.
However, static trees define 32 codes (all 5 bits) to fill out the
Huffman codes, but the last two had better not show up in the data.
7. Unzip can check dynamic Huffman blocks for complete code sets.
The exception is that a single code would not be complete (see #4).
8. The five bits following the block type is really the number of
literal codes sent minus 257.
9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
(1+6+6). Therefore, to output three times the length, you output
three codes (1+1+1), whereas to output four times the same length,
you only need two codes (1+3). Hmm.
10. In the tree reconstruction algorithm, Code = Code + Increment
only if BitLength(i) is not zero. (Pretty obvious.)
11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
12. Note: length code 284 can represent 227-258, but length code 285
really is 258. The last length deserves its own, short code
since it gets used a lot in very redundant files. The length
258 is special since 258 - 3 (the min match length) is 255.
13. The literal/length and distance code bit lengths are read as a
single stream of lengths. It is possible (and advantageous) for
a repeat code (16, 17, or 18) to go across the boundary between
the two sets of lengths.
*/
void inflate_blocks_reset(s, z, c)
inflate_blocks_statef *s;
z_streamp z;
uLongf *c;
{
if (c != Z_NULL)
*c = s->check;
if (s->mode == BTREE || s->mode == DTREE)
ZFREE(z, s->sub.trees.blens);
if (s->mode == CODES)
inflate_codes_free(s->sub.decode.codes, z);
s->mode = TYPE;
s->bitk = 0;
s->bitb = 0;
s->read = s->write = s->window;
if (s->checkfn != Z_NULL)
z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
Tracev((stderr, "inflate: blocks reset\n"));
}
inflate_blocks_statef *inflate_blocks_new(z, c, w)
z_streamp z;
check_func c;
uInt w;
{
inflate_blocks_statef *s;
if ((s = (inflate_blocks_statef *)ZALLOC
(z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
return s;
if ((s->hufts =
(inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL)
{
ZFREE(z, s);
return Z_NULL;
}
if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
{
ZFREE(z, s->hufts);
ZFREE(z, s);
return Z_NULL;
}
s->end = s->window + w;
s->checkfn = c;
s->mode = TYPE;
Tracev((stderr, "inflate: blocks allocated\n"));
inflate_blocks_reset(s, z, Z_NULL);
return s;
}
int inflate_blocks(s, z, r)
inflate_blocks_statef *s;
z_streamp z;
int r;
{
uInt t; /* temporary storage */
uLong b; /* bit buffer */
uInt k; /* bits in bit buffer */
Bytef *p; /* input data pointer */
uInt n; /* bytes available there */
Bytef *q; /* output window write pointer */
uInt m; /* bytes to end of window or read pointer */
/* copy input/output information to locals (UPDATE macro restores) */
LOAD
/* process input based on current state */
while (1) switch (s->mode)
{
case TYPE:
NEEDBITS(3)
t = (uInt)b & 7;
s->last = t & 1;
switch (t >> 1)
{
case 0: /* stored */
Tracev((stderr, "inflate: stored block%s\n",
s->last ? " (last)" : ""));
DUMPBITS(3)
t = k & 7; /* go to byte boundary */
DUMPBITS(t)
s->mode = LENS; /* get length of stored block */
break;
case 1: /* fixed */
Tracev((stderr, "inflate: fixed codes block%s\n",
s->last ? " (last)" : ""));
{
uInt bl, bd;
inflate_huft *tl, *td;
inflate_trees_fixed(&bl, &bd, &tl, &td, z);
s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
if (s->sub.decode.codes == Z_NULL)
{
r = Z_MEM_ERROR;
LEAVE
}
}
DUMPBITS(3)
s->mode = CODES;
break;
case 2: /* dynamic */
Tracev((stderr, "inflate: dynamic codes block%s\n",
s->last ? " (last)" : ""));
DUMPBITS(3)
s->mode = TABLE;
break;
case 3: /* illegal */
DUMPBITS(3)
s->mode = BAD;
z->msg = (char*)"invalid block type";
r = Z_DATA_ERROR;
LEAVE
}
break;
case LENS:
NEEDBITS(32)
if ((((~b) >> 16) & 0xffff) != (b & 0xffff))
{
s->mode = BAD;
z->msg = (char*)"invalid stored block lengths";
r = Z_DATA_ERROR;
LEAVE
}
s->sub.left = (uInt)b & 0xffff;
b = k = 0; /* dump bits */
Tracev((stderr, "inflate: stored length %u\n", s->sub.left));
s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
break;
case STORED:
if (n == 0)
LEAVE
NEEDOUT
t = s->sub.left;
if (t > n) t = n;
if (t > m) t = m;
zmemcpy(q, p, t);
p += t; n -= t;
q += t; m -= t;
if ((s->sub.left -= t) != 0)
break;
Tracev((stderr, "inflate: stored end, %lu total out\n",
z->total_out + (q >= s->read ? q - s->read :
(s->end - s->read) + (q - s->window))));
s->mode = s->last ? DRY : TYPE;
break;
case TABLE:
NEEDBITS(14)
s->sub.trees.table = t = (uInt)b & 0x3fff;
#ifndef PKZIP_BUG_WORKAROUND
if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
{
s->mode = BAD;
z->msg = (char*)"too many length or distance symbols";
r = Z_DATA_ERROR;
LEAVE
}
#endif
t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
{
r = Z_MEM_ERROR;
LEAVE
}
DUMPBITS(14)
s->sub.trees.index = 0;
Tracev((stderr, "inflate: table sizes ok\n"));
s->mode = BTREE;
case BTREE:
while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
{
NEEDBITS(3)
s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
DUMPBITS(3)
}
while (s->sub.trees.index < 19)
s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
s->sub.trees.bb = 7;
t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
&s->sub.trees.tb, s->hufts, z);
if (t != Z_OK)
{
r = t;
if (r == Z_DATA_ERROR)
{
ZFREE(z, s->sub.trees.blens);
s->mode = BAD;
}
LEAVE
}
s->sub.trees.index = 0;
Tracev((stderr, "inflate: bits tree ok\n"));
s->mode = DTREE;
case DTREE:
while (t = s->sub.trees.table,
s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
{
inflate_huft *h;
uInt i, j, c;
t = s->sub.trees.bb;
NEEDBITS(t)
h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
t = h->bits;
c = h->base;
if (c < 16)
{
DUMPBITS(t)
s->sub.trees.blens[s->sub.trees.index++] = c;
}
else /* c == 16..18 */
{
i = c == 18 ? 7 : c - 14;
j = c == 18 ? 11 : 3;
NEEDBITS(t + i)
DUMPBITS(t)
j += (uInt)b & inflate_mask[i];
DUMPBITS(i)
i = s->sub.trees.index;
t = s->sub.trees.table;
if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
(c == 16 && i < 1))
{
ZFREE(z, s->sub.trees.blens);
s->mode = BAD;
z->msg = (char*)"invalid bit length repeat";
r = Z_DATA_ERROR;
LEAVE
}
c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
do {
s->sub.trees.blens[i++] = c;
} while (--j);
s->sub.trees.index = i;
}
}
s->sub.trees.tb = Z_NULL;
{
uInt bl, bd;
inflate_huft *tl, *td;
inflate_codes_statef *c;
bl = 9; /* must be <= 9 for lookahead assumptions */
bd = 6; /* must be <= 9 for lookahead assumptions */
t = s->sub.trees.table;
t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
s->sub.trees.blens, &bl, &bd, &tl, &td,
s->hufts, z);
if (t != Z_OK)
{
if (t == (uInt)Z_DATA_ERROR)
{
ZFREE(z, s->sub.trees.blens);
s->mode = BAD;
}
r = t;
LEAVE
}
Tracev((stderr, "inflate: trees ok\n"));
if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
{
r = Z_MEM_ERROR;
LEAVE
}
s->sub.decode.codes = c;
}
ZFREE(z, s->sub.trees.blens);
s->mode = CODES;
case CODES:
UPDATE
if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
return inflate_flush(s, z, r);
r = Z_OK;
inflate_codes_free(s->sub.decode.codes, z);
LOAD
Tracev((stderr, "inflate: codes end, %lu total out\n",
z->total_out + (q >= s->read ? q - s->read :
(s->end - s->read) + (q - s->window))));
if (!s->last)
{
s->mode = TYPE;
break;
}
s->mode = DRY;
case DRY:
FLUSH
if (s->read != s->write)
LEAVE
s->mode = DONE;
case DONE:
r = Z_STREAM_END;
LEAVE
case BAD:
r = Z_DATA_ERROR;
LEAVE
default:
r = Z_STREAM_ERROR;
LEAVE
}
}
int inflate_blocks_free(s, z)
inflate_blocks_statef *s;
z_streamp z;
{
inflate_blocks_reset(s, z, Z_NULL);
ZFREE(z, s->window);
ZFREE(z, s->hufts);
ZFREE(z, s);
Tracev((stderr, "inflate: blocks freed\n"));
return Z_OK;
}
void inflate_set_dictionary(s, d, n)
inflate_blocks_statef *s;
const Bytef *d;
uInt n;
{
zmemcpy(s->window, d, n);
s->read = s->write = s->window + n;
}
/* Returns true if inflate is currently at the end of a block generated
* by Z_SYNC_FLUSH or Z_FULL_FLUSH.
* IN assertion: s != Z_NULL
*/
int inflate_blocks_sync_point(s)
inflate_blocks_statef *s;
{
return s->mode == LENS;
}

39
security/nss/cmd/zlib/infblock.h
Просмотреть файл

@ -1,39 +0,0 @@
/* infblock.h -- header to use infblock.c
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
struct inflate_blocks_state;
typedef struct inflate_blocks_state FAR inflate_blocks_statef;
extern inflate_blocks_statef * inflate_blocks_new OF((
z_streamp z,
check_func c, /* check function */
uInt w)); /* window size */
extern int inflate_blocks OF((
inflate_blocks_statef *,
z_streamp ,
int)); /* initial return code */
extern void inflate_blocks_reset OF((
inflate_blocks_statef *,
z_streamp ,
uLongf *)); /* check value on output */
extern int inflate_blocks_free OF((
inflate_blocks_statef *,
z_streamp));
extern void inflate_set_dictionary OF((
inflate_blocks_statef *s,
const Bytef *d, /* dictionary */
uInt n)); /* dictionary length */
extern int inflate_blocks_sync_point OF((
inflate_blocks_statef *s));

251
security/nss/cmd/zlib/infcodes.c
Просмотреть файл

@ -1,251 +0,0 @@
/* infcodes.c -- process literals and length/distance pairs
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "zutil.h"
#include "inftrees.h"
#include "infblock.h"
#include "infcodes.h"
#include "infutil.h"
#include "inffast.h"
/* simplify the use of the inflate_huft type with some defines */
#define exop word.what.Exop
#define bits word.what.Bits
typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
START, /* x: set up for LEN */
LEN, /* i: get length/literal/eob next */
LENEXT, /* i: getting length extra (have base) */
DIST, /* i: get distance next */
DISTEXT, /* i: getting distance extra */
COPY, /* o: copying bytes in window, waiting for space */
LIT, /* o: got literal, waiting for output space */
WASH, /* o: got eob, possibly still output waiting */
END, /* x: got eob and all data flushed */
BADCODE} /* x: got error */
inflate_codes_mode;
/* inflate codes private state */
struct inflate_codes_state {
/* mode */
inflate_codes_mode mode; /* current inflate_codes mode */
/* mode dependent information */
uInt len;
union {
struct {
inflate_huft *tree; /* pointer into tree */
uInt need; /* bits needed */
} code; /* if LEN or DIST, where in tree */
uInt lit; /* if LIT, literal */
struct {
uInt get; /* bits to get for extra */
uInt dist; /* distance back to copy from */
} copy; /* if EXT or COPY, where and how much */
} sub; /* submode */
/* mode independent information */
Byte lbits; /* ltree bits decoded per branch */
Byte dbits; /* dtree bits decoder per branch */
inflate_huft *ltree; /* literal/length/eob tree */
inflate_huft *dtree; /* distance tree */
};
inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z)
uInt bl, bd;
inflate_huft *tl;
inflate_huft *td; /* need separate declaration for Borland C++ */
z_streamp z;
{
inflate_codes_statef *c;
if ((c = (inflate_codes_statef *)
ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL)
{
c->mode = START;
c->lbits = (Byte)bl;
c->dbits = (Byte)bd;
c->ltree = tl;
c->dtree = td;
Tracev((stderr, "inflate: codes new\n"));
}
return c;
}
int inflate_codes(s, z, r)
inflate_blocks_statef *s;
z_streamp z;
int r;
{
uInt j; /* temporary storage */
inflate_huft *t; /* temporary pointer */
uInt e; /* extra bits or operation */
uLong b; /* bit buffer */
uInt k; /* bits in bit buffer */
Bytef *p; /* input data pointer */
uInt n; /* bytes available there */
Bytef *q; /* output window write pointer */
uInt m; /* bytes to end of window or read pointer */
Bytef *f; /* pointer to copy strings from */
inflate_codes_statef *c = s->sub.decode.codes; /* codes state */
/* copy input/output information to locals (UPDATE macro restores) */
LOAD
/* process input and output based on current state */
while (1) switch (c->mode)
{ /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
case START: /* x: set up for LEN */
#ifndef SLOW
if (m >= 258 && n >= 10)
{
UPDATE
r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
LOAD
if (r != Z_OK)
{
c->mode = r == Z_STREAM_END ? WASH : BADCODE;
break;
}
}
#endif /* !SLOW */
c->sub.code.need = c->lbits;
c->sub.code.tree = c->ltree;
c->mode = LEN;
case LEN: /* i: get length/literal/eob next */
j = c->sub.code.need;
NEEDBITS(j)
t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
DUMPBITS(t->bits)
e = (uInt)(t->exop);
if (e == 0) /* literal */
{
c->sub.lit = t->base;
Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
"inflate: literal '%c'\n" :
"inflate: literal 0x%02x\n", t->base));
c->mode = LIT;
break;
}
if (e & 16) /* length */
{
c->sub.copy.get = e & 15;
c->len = t->base;
c->mode = LENEXT;
break;
}
if ((e & 64) == 0) /* next table */
{
c->sub.code.need = e;
c->sub.code.tree = t + t->base;
break;
}
if (e & 32) /* end of block */
{
Tracevv((stderr, "inflate: end of block\n"));
c->mode = WASH;
break;
}
c->mode = BADCODE; /* invalid code */
z->msg = (char*)"invalid literal/length code";
r = Z_DATA_ERROR;
LEAVE
case LENEXT: /* i: getting length extra (have base) */
j = c->sub.copy.get;
NEEDBITS(j)
c->len += (uInt)b & inflate_mask[j];
DUMPBITS(j)
c->sub.code.need = c->dbits;
c->sub.code.tree = c->dtree;
Tracevv((stderr, "inflate: length %u\n", c->len));
c->mode = DIST;
case DIST: /* i: get distance next */
j = c->sub.code.need;
NEEDBITS(j)
t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
DUMPBITS(t->bits)
e = (uInt)(t->exop);
if (e & 16) /* distance */
{
c->sub.copy.get = e & 15;
c->sub.copy.dist = t->base;
c->mode = DISTEXT;
break;
}
if ((e & 64) == 0) /* next table */
{
c->sub.code.need = e;
c->sub.code.tree = t + t->base;
break;
}
c->mode = BADCODE; /* invalid code */
z->msg = (char*)"invalid distance code";
r = Z_DATA_ERROR;
LEAVE
case DISTEXT: /* i: getting distance extra */
j = c->sub.copy.get;
NEEDBITS(j)
c->sub.copy.dist += (uInt)b & inflate_mask[j];
DUMPBITS(j)
Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist));
c->mode = COPY;
case COPY: /* o: copying bytes in window, waiting for space */
f = q - c->sub.copy.dist;
while (f < s->window) /* modulo window size-"while" instead */
f += s->end - s->window; /* of "if" handles invalid distances */
while (c->len)
{
NEEDOUT
OUTBYTE(*f++)
if (f == s->end)
f = s->window;
c->len--;
}
c->mode = START;
break;
case LIT: /* o: got literal, waiting for output space */
NEEDOUT
OUTBYTE(c->sub.lit)
c->mode = START;
break;
case WASH: /* o: got eob, possibly more output */
if (k > 7) /* return unused byte, if any */
{
Assert(k < 16, "inflate_codes grabbed too many bytes")
k -= 8;
n++;
p--; /* can always return one */
}
FLUSH
if (s->read != s->write)
LEAVE
c->mode = END;
case END:
r = Z_STREAM_END;
LEAVE
case BADCODE: /* x: got error */
r = Z_DATA_ERROR;
LEAVE
default:
r = Z_STREAM_ERROR;
LEAVE
}
#ifdef NEED_DUMMY_RETURN
return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
#endif
}
void inflate_codes_free(c, z)
inflate_codes_statef *c;
z_streamp z;
{
ZFREE(z, c);
Tracev((stderr, "inflate: codes free\n"));
}

27
security/nss/cmd/zlib/infcodes.h
Просмотреть файл

@ -1,27 +0,0 @@
/* infcodes.h -- header to use infcodes.c
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
struct inflate_codes_state;
typedef struct inflate_codes_state FAR inflate_codes_statef;
extern inflate_codes_statef *inflate_codes_new OF((
uInt, uInt,
inflate_huft *, inflate_huft *,
z_streamp ));
extern int inflate_codes OF((
inflate_blocks_statef *,
z_streamp ,
int));
extern void inflate_codes_free OF((
inflate_codes_statef *,
z_streamp ));

59
security/nss/cmd/zlib/inffast.c
Просмотреть файл

@ -1,5 +1,5 @@
/* inffast.c -- process literals and length/distance pairs fast
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -13,12 +13,14 @@
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
/* simplify the use of the inflate_huft type with some defines */
#define base more.Base
#define next more.Next
#define exop word.what.Exop
#define bits word.what.Bits
/* macros for bit input with no checking and for returning unused bytes */
#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}}
#define UNGRAB {c=z->avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;}
#define UNGRAB {n+=(c=k>>3);p-=c;k&=7;}
/* Called with number of bytes left to write in window at least 258
(the maximum string length) and number of input bytes available
@ -93,48 +95,32 @@ z_streamp z;
/* do the copy */
m -= c;
r = q - d;
if (r < s->window) /* wrap if needed */
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 */
{
do {
r += s->end - s->window; /* force pointer in window */
} while (r < s->window); /* covers invalid distances */
e = s->end - r;
if (c > e)
e = d - (uInt)(q - s->window); /* bytes from offset to end */
r = s->end - e; /* pointer to offset */
if (c > e) /* if source crosses, */
{
c -= e; /* wrapped copy */
c -= e; /* copy to end of window */
do {
*q++ = *r++;
*q++ = *r++;
} while (--e);
r = s->window;
do {
*q++ = *r++;
} while (--c);
}
else /* normal copy */
{
*q++ = *r++; c--;
*q++ = *r++; c--;
do {
*q++ = *r++;
} while (--c);
r = s->window; /* copy rest from start of window */
}
}
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);
break;
}
else if ((e & 64) == 0)
{
t += t->base;
e = (t += ((uInt)b & inflate_mask[e]))->exop;
}
e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop;
else
{
z->msg = (char*)"invalid distance code";
@ -147,8 +133,7 @@ z_streamp z;
}
if ((e & 64) == 0)
{
t += t->base;
if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0)
if ((e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop) == 0)
{
DUMPBITS(t->bits)
Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?

2
security/nss/cmd/zlib/inffast.h
Просмотреть файл

@ -1,5 +1,5 @@
/* inffast.h -- header to use inffast.c
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

82
security/nss/cmd/zlib/inflate.c
Просмотреть файл

@ -1,14 +1,19 @@
/* inflate.c -- zlib interface to inflate modules
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
#include "zutil.h"
#include "infblock.h"
struct inflate_blocks_state {int dummy;}; /* for buggy compilers */
typedef enum {
/* inflate private state */
struct internal_state {
/* mode */
enum {
METHOD, /* waiting for method byte */
FLAG, /* waiting for flag byte */
DICT4, /* four dictionary check bytes to go */
@ -23,13 +28,7 @@ typedef enum {
CHECK1, /* one check byte to go */
DONE, /* finished check, done */
BAD} /* got an error--stay here */
inflate_mode;
/* inflate private state */
struct internal_state {
/* mode */
inflate_mode mode; /* current inflate mode */
mode; /* current inflate mode */
/* mode dependent information */
union {
@ -50,35 +49,39 @@ struct internal_state {
};
int ZEXPORT inflateReset(z)
PR_PUBLIC_API(int) inflateReset(z)
z_streamp z;
{
uLong c;
if (z == Z_NULL || z->state == Z_NULL)
return Z_STREAM_ERROR;
z->total_in = z->total_out = 0;
z->msg = Z_NULL;
z->state->mode = z->state->nowrap ? BLOCKS : METHOD;
inflate_blocks_reset(z->state->blocks, z, Z_NULL);
Tracev((stderr, "inflate: reset\n"));
inflate_blocks_reset(z->state->blocks, z, &c);
Trace((stderr, "inflate: reset\n"));
return Z_OK;
}
int ZEXPORT inflateEnd(z)
PR_PUBLIC_API(int) inflateEnd(z)
z_streamp z;
{
uLong c;
if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL)
return Z_STREAM_ERROR;
if (z->state->blocks != Z_NULL)
inflate_blocks_free(z->state->blocks, z);
inflate_blocks_free(z->state->blocks, z, &c);
ZFREE(z, z->state);
z->state = Z_NULL;
Tracev((stderr, "inflate: end\n"));
Trace((stderr, "inflate: end\n"));
return Z_OK;
}
int ZEXPORT inflateInit2_(z, w, version, stream_size)
PR_PUBLIC_API(int) inflateInit2_(z, w, version, stream_size)
z_streamp z;
int w;
const char *version;
@ -127,7 +130,7 @@ int stream_size;
inflateEnd(z);
return Z_MEM_ERROR;
}
Tracev((stderr, "inflate: allocated\n"));
Trace((stderr, "inflate: allocated\n"));
/* reset state */
inflateReset(z);
@ -135,7 +138,7 @@ int stream_size;
}
int ZEXPORT inflateInit_(z, version, stream_size)
PR_PUBLIC_API(int) inflateInit_(z, version, stream_size)
z_streamp z;
const char *version;
int stream_size;
@ -144,19 +147,18 @@ int stream_size;
}
#define NEEDBYTE {if(z->avail_in==0)return r;r=f;}
#define NEEDBYTE {if(z->avail_in==0)return r;r=Z_OK;}
#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++)
int ZEXPORT inflate(z, f)
PR_PUBLIC_API(int) inflate(z, f)
z_streamp z;
int f;
{
int r;
uInt b;
if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL)
if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL || f < 0)
return Z_STREAM_ERROR;
f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK;
r = Z_BUF_ERROR;
while (1) switch (z->state->mode)
{
@ -187,11 +189,11 @@ int f;
z->state->sub.marker = 5; /* can't try inflateSync */
break;
}
Tracev((stderr, "inflate: zlib header ok\n"));
Trace((stderr, "inflate: zlib header ok\n"));
if (!(b & PRESET_DICT))
{
z->state->mode = BLOCKS;
break;
break;
}
z->state->mode = DICT4;
case DICT4:
@ -225,11 +227,9 @@ int f;
z->state->sub.marker = 0; /* can try inflateSync */
break;
}
if (r == Z_OK)
r = f;
if (r != Z_STREAM_END)
return r;
r = f;
r = Z_OK;
inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was);
if (z->state->nowrap)
{
@ -260,7 +260,7 @@ int f;
z->state->sub.marker = 5; /* can't try inflateSync */
break;
}
Tracev((stderr, "inflate: zlib check ok\n"));
Trace((stderr, "inflate: zlib check ok\n"));
z->state->mode = DONE;
case DONE:
return Z_STREAM_END;
@ -269,13 +269,10 @@ int f;
default:
return Z_STREAM_ERROR;
}
#ifdef NEED_DUMMY_RETURN
return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
#endif
}
int ZEXPORT inflateSetDictionary(z, dictionary, dictLength)
PR_PUBLIC_API(int) inflateSetDictionary(z, dictionary, dictLength)
z_streamp z;
const Bytef *dictionary;
uInt dictLength;
@ -299,7 +296,7 @@ uInt dictLength;
}
int ZEXPORT inflateSync(z)
PR_PUBLIC_API(int) inflateSync(z)
z_streamp z;
{
uInt n; /* number of bytes to look at */
@ -323,8 +320,7 @@ z_streamp z;
/* search */
while (n && m < 4)
{
static const Byte mark[4] = {0, 0, 0xff, 0xff};
if (*p == mark[m])
if (*p == (Byte)(m < 2 ? 0 : 0xff))
m++;
else if (*p)
m = 0;
@ -348,19 +344,3 @@ z_streamp z;
z->state->mode = BLOCKS;
return Z_OK;
}
/* Returns true if inflate is currently at the end of a block generated
* by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP
* implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH
* but removes the length bytes of the resulting empty stored block. When
* decompressing, PPP checks that at the end of input packet, inflate is
* waiting for these length bytes.
*/
int ZEXPORT inflateSyncPoint(z)
z_streamp z;
{
if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL)
return Z_STREAM_ERROR;
return inflate_blocks_sync_point(z->state->blocks);
}

213
security/nss/cmd/zlib/inftrees.c
Просмотреть файл

@ -1,17 +1,13 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
#include "zutil.h"
#include "inftrees.h"
#if !defined(BUILDFIXED) && !defined(STDC)
# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */
#endif
const char inflate_copyright[] =
" inflate 1.1.4 Copyright 1995-2002 Mark Adler ";
char inflate_copyright[] = " inflate 1.0.4 Copyright 1995-1996 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
@ -21,6 +17,8 @@ const char inflate_copyright[] =
struct internal_state {int dummy;}; /* for buggy compilers */
/* simplify the use of the inflate_huft type with some defines */
#define base more.Base
#define next more.Next
#define exop word.what.Exop
#define bits word.what.Bits
@ -29,27 +27,30 @@ local int huft_build OF((
uIntf *, /* code lengths in bits */
uInt, /* number of codes */
uInt, /* number of "simple" codes */
const uIntf *, /* list of base values for non-simple codes */
const uIntf *, /* list of extra bits for non-simple codes */
uIntf *, /* list of base values for non-simple codes */
uIntf *, /* list of extra bits for non-simple codes */
inflate_huft * FAR*,/* result: starting table */
uIntf *, /* maximum lookup bits (returns actual) */
inflate_huft *, /* space for trees */
uInt *, /* hufts used in space */
uIntf * )); /* space for values */
z_streamp )); /* for zalloc function */
local voidpf falloc OF((
voidpf, /* opaque pointer (not used) */
uInt, /* number of items */
uInt)); /* size of item */
/* Tables for deflate from PKZIP's appnote.txt. */
local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */
local uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */
3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
/* see note #13 above about 258 */
local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */
/* see note #13 above about 258 */
local uInt cplext[31] = { /* Extra bits for literal codes 257..285 */
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */
local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */
local uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
8193, 12289, 16385, 24577};
local const uInt cpdext[30] = { /* Extra bits for distance codes */
local uInt cpdext[30] = { /* Extra bits for distance codes */
0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
12, 12, 13, 13};
@ -89,22 +90,26 @@ local const uInt cpdext[30] = { /* Extra bits for distance codes */
/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */
#define BMAX 15 /* maximum bit length of any code */
#define N_MAX 288 /* maximum number of codes in any set */
local int huft_build(b, n, s, d, e, t, m, hp, hn, v)
#ifdef DEBUG
uInt inflate_hufts;
#endif
local int huft_build(b, n, s, d, e, t, m, zs)
uIntf *b; /* code lengths in bits (all assumed <= BMAX) */
uInt n; /* number of codes (assumed <= 288) */
uInt n; /* number of codes (assumed <= N_MAX) */
uInt s; /* number of simple-valued codes (0..s-1) */
const uIntf *d; /* list of base values for non-simple codes */
const uIntf *e; /* list of extra bits for non-simple codes */
uIntf *d; /* list of base values for non-simple codes */
uIntf *e; /* list of extra bits for non-simple codes */
inflate_huft * FAR *t; /* result: starting table */
uIntf *m; /* maximum lookup bits, returns actual */
inflate_huft *hp; /* space for trees */
uInt *hn; /* hufts used in space */
uIntf *v; /* working area: values in order of bit length */
z_streamp zs; /* for zalloc function */
/* 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), or Z_DATA_ERROR if the input is invalid. */
case), Z_DATA_ERROR if the input is invalid (an over-subscribed set of
set of lengths), or Z_MEM_ERROR if not enough memory. */
{
uInt a; /* counter for codes of length k */
@ -116,11 +121,11 @@ uIntf *v; /* working area: values in order of bit length */
register uInt j; /* counter */
register int k; /* number of bits in current code */
int l; /* bits per table (returned in m) */
uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */
register uIntf *p; /* pointer into c[], b[], or v[] */
inflate_huft *q; /* points to current table */
struct inflate_huft_s r; /* table entry for structure assignment */
inflate_huft *u[BMAX]; /* table stack */
uInt v[N_MAX]; /* values in order of bit length */
register int w; /* bits before this table == (l * h) */
uInt x[BMAX+1]; /* bit offsets, then code stack */
uIntf *xp; /* pointer into x */
@ -186,7 +191,7 @@ uIntf *v; /* working area: values in order of bit length */
if ((j = *p++) != 0)
v[x[j]++] = i;
} while (++i < n);
n = x[g]; /* set n to length of v */
n = x[g]; /* set n to length of v */
/* Generate the Huffman codes and for each, make the table entries */
@ -228,11 +233,20 @@ uIntf *v; /* working area: values in order of bit length */
}
z = 1 << j; /* table entries for j-bit table */
/* allocate new table */
if (*hn + z > MANY) /* (note: doesn't matter for fixed) */
return Z_DATA_ERROR; /* overflow of MANY */
u[h] = q = hp + *hn;
*hn += z;
/* allocate and link in new table */
if ((q = (inflate_huft *)ZALLOC
(zs,z + 1,sizeof(inflate_huft))) == Z_NULL)
{
if (h)
inflate_trees_free(u[0], zs);
return Z_MEM_ERROR; /* not enough memory */
}
#ifdef DEBUG
inflate_hufts += z + 1;
#endif
*t = q + 1; /* link to list for huft_free() */
*(t = &(q->next)) = Z_NULL;
u[h] = ++q; /* table starts after link */
/* connect to last table, if there is one */
if (h)
@ -240,12 +254,10 @@ uIntf *v; /* working area: values in order of bit length */
x[h] = i; /* save pattern for backing up */
r.bits = (Byte)l; /* bits to dump before this table */
r.exop = (Byte)j; /* bits in this table */
j = i >> (w - l);
r.base = (uInt)(q - u[h-1] - j); /* offset to this table */
r.next = q; /* pointer to this table */
j = i >> (w - l); /* (get around Turbo C bug) */
u[h-1][j] = r; /* connect to last table */
}
else
*t = q; /* first table is returned result */
}
/* set up table entry in r */
@ -274,12 +286,10 @@ uIntf *v; /* working area: values in order of bit length */
i ^= j;
/* backup over finished tables */
mask = (1 << w) - 1; /* needed on HP, cc -O bug */
while ((i & mask) != x[h])
while ((i & ((1 << w) - 1)) != x[h])
{
h--; /* don't need to update q */
w -= l;
mask = (1 << w) - 1;
}
}
}
@ -290,34 +300,28 @@ uIntf *v; /* working area: values in order of bit length */
}
int inflate_trees_bits(c, bb, tb, hp, z)
int inflate_trees_bits(c, bb, tb, z)
uIntf *c; /* 19 code lengths */
uIntf *bb; /* bits tree desired/actual depth */
inflate_huft * FAR *tb; /* bits tree result */
inflate_huft *hp; /* space for trees */
z_streamp z; /* for messages */
z_streamp z; /* for zfree function */
{
int r;
uInt hn = 0; /* hufts used in space */
uIntf *v; /* work area for huft_build */
if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL)
return Z_MEM_ERROR;
r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL,
tb, bb, hp, &hn, v);
r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, tb, bb, z);
if (r == Z_DATA_ERROR)
z->msg = (char*)"oversubscribed dynamic bit lengths tree";
else if (r == Z_BUF_ERROR || *bb == 0)
{
inflate_trees_free(*tb, z);
z->msg = (char*)"incomplete dynamic bit lengths tree";
r = Z_DATA_ERROR;
}
ZFREE(z, v);
return r;
}
int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z)
int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, z)
uInt nl; /* number of literal/length codes */
uInt nd; /* number of distance codes */
uIntf *c; /* that many (total) code lengths */
@ -325,100 +329,95 @@ uIntf *bl; /* literal desired/actual bit depth */
uIntf *bd; /* distance desired/actual bit depth */
inflate_huft * FAR *tl; /* literal/length tree result */
inflate_huft * FAR *td; /* distance tree result */
inflate_huft *hp; /* space for trees */
z_streamp z; /* for messages */
z_streamp z; /* for zfree function */
{
int r;
uInt hn = 0; /* hufts used in space */
uIntf *v; /* work area for huft_build */
/* allocate work area */
if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
return Z_MEM_ERROR;
/* build literal/length tree */
r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v);
r = huft_build(c, nl, 257, cplens, cplext, tl, bl, z);
if (r != Z_OK || *bl == 0)
{
if (r == Z_DATA_ERROR)
z->msg = (char*)"oversubscribed literal/length tree";
else if (r != Z_MEM_ERROR)
{
inflate_trees_free(*tl, z);
z->msg = (char*)"incomplete literal/length tree";
r = Z_DATA_ERROR;
}
ZFREE(z, v);
return r;
}
/* build distance tree */
r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v);
r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, z);
if (r != Z_OK || (*bd == 0 && nl > 257))
{
if (r == Z_DATA_ERROR)
z->msg = (char*)"oversubscribed distance tree";
z->msg = (char*)"oversubscribed literal/length tree";
else if (r == Z_BUF_ERROR) {
#ifdef PKZIP_BUG_WORKAROUND
r = Z_OK;
}
#else
inflate_trees_free(*td, z);
z->msg = (char*)"incomplete distance tree";
r = Z_DATA_ERROR;
}
else if (r != Z_MEM_ERROR)
{
z->msg = (char*)"empty distance tree with lengths";
r = Z_DATA_ERROR;
z->msg = (char*)"empty distance tree with lengths";
r = Z_DATA_ERROR;
}
ZFREE(z, v);
inflate_trees_free(*tl, z);
return r;
#endif
}
/* done */
ZFREE(z, v);
return Z_OK;
}
/* build fixed tables only once--keep them here */
#ifdef BUILDFIXED
local int fixed_built = 0;
#define FIXEDH 544 /* number of hufts used by fixed tables */
#define FIXEDH 530 /* number of hufts used by fixed tables */
local inflate_huft fixed_mem[FIXEDH];
local uInt fixed_bl;
local uInt fixed_bd;
local inflate_huft *fixed_tl;
local inflate_huft *fixed_td;
#else
#include "inffixed.h"
#endif
int inflate_trees_fixed(bl, bd, tl, td, z)
local voidpf falloc(q, n, s)
voidpf q; /* opaque pointer */
uInt n; /* number of items */
uInt s; /* size of item */
{
Assert(s == sizeof(inflate_huft) && n <= *(intf *)q,
"inflate_trees falloc overflow");
*(intf *)q -= n+s-s; /* s-s to avoid warning */
return (voidpf)(fixed_mem + *(intf *)q);
}
int inflate_trees_fixed(bl, bd, tl, td)
uIntf *bl; /* literal desired/actual bit depth */
uIntf *bd; /* distance desired/actual bit depth */
inflate_huft * FAR *tl; /* literal/length tree result */
inflate_huft * FAR *td; /* distance tree result */
z_streamp z; /* for memory allocation */
{
#ifdef BUILDFIXED
/* build fixed tables if not already */
/* build fixed tables if not already (multiple overlapped executions ok) */
if (!fixed_built)
{
int k; /* temporary variable */
uInt f = 0; /* number of hufts used in fixed_mem */
uIntf *c; /* length list for huft_build */
uIntf *v; /* work area for huft_build */
unsigned c[288]; /* length list for huft_build */
z_stream z; /* for falloc function */
int f = FIXEDH; /* number of hufts left in fixed_mem */
/* allocate memory */
if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
return Z_MEM_ERROR;
if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
{
ZFREE(z, c);
return Z_MEM_ERROR;
}
/* set up fake z_stream for memory routines */
z.zalloc = falloc;
z.zfree = Z_NULL;
z.opaque = (voidpf)&f;
/* literal table */
for (k = 0; k < 144; k++)
@ -429,26 +428,52 @@ z_streamp z; /* for memory allocation */
c[k] = 7;
for (; k < 288; k++)
c[k] = 8;
fixed_bl = 9;
huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl,
fixed_mem, &f, v);
fixed_bl = 7;
huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, &z);
/* distance table */
for (k = 0; k < 30; k++)
c[k] = 5;
fixed_bd = 5;
huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd,
fixed_mem, &f, v);
huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, &z);
/* done */
ZFREE(z, v);
ZFREE(z, c);
Assert(f == 0, "invalid build of fixed tables");
fixed_built = 1;
}
#endif
*bl = fixed_bl;
*bd = fixed_bd;
*tl = fixed_tl;
*td = fixed_td;
return Z_OK;
}
int inflate_trees_free(t, z)
inflate_huft *t; /* table to free */
z_streamp z; /* for zfree function */
/* Free the malloc'ed tables built by huft_build(), which makes a linked
list of the tables it made, with the links in a dummy first entry of
each table. */
{
register inflate_huft *p, *q, *r;
/* Reverse linked list */
p = Z_NULL;
q = t;
while (q != Z_NULL)
{
r = (q - 1)->next;
(q - 1)->next = p;
p = q;
q = r;
}
/* Go through linked list, freeing from the malloced (t[-1]) address. */
while (p != Z_NULL)
{
q = (--p)->next;
ZFREE(z,p);
p = q;
}
return Z_OK;
}

35
security/nss/cmd/zlib/inftrees.h
Просмотреть файл

@ -1,5 +1,5 @@
/* inftrees.h -- header to use inftrees.c
* Copyright (C) 1995-2002 Mark Adler
* Copyright (C) 1995-1996 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -19,25 +19,23 @@ struct inflate_huft_s {
Byte Exop; /* number of extra bits or operation */
Byte Bits; /* number of bits in this code or subcode */
} what;
uInt pad; /* pad structure to a power of 2 (4 bytes for */
} word; /* 16-bit, 8 bytes for 32-bit int's) */
uInt base; /* literal, length base, distance base,
or table offset */
Bytef *pad; /* pad structure to a power of 2 (4 bytes for */
} word; /* 16-bit, 8 bytes for 32-bit machines) */
union {
uInt Base; /* literal, length base, or distance base */
inflate_huft *Next; /* pointer to next level of table */
} more;
};
/* Maximum size of dynamic tree. The maximum found in a long but non-
exhaustive search was 1004 huft structures (850 for length/literals
and 154 for distances, the latter actually the result of an
exhaustive search). The actual maximum is not known, but the
value below is more than safe. */
#define MANY 1440
#ifdef DEBUG
extern uInt inflate_hufts;
#endif
extern int inflate_trees_bits OF((
uIntf *, /* 19 code lengths */
uIntf *, /* bits tree desired/actual depth */
inflate_huft * FAR *, /* bits tree result */
inflate_huft *, /* space for trees */
z_streamp)); /* for messages */
z_streamp )); /* for zalloc, zfree functions */
extern int inflate_trees_dynamic OF((
uInt, /* number of literal/length codes */
@ -47,12 +45,15 @@ extern int inflate_trees_dynamic OF((
uIntf *, /* distance desired/actual bit depth */
inflate_huft * FAR *, /* literal/length tree result */
inflate_huft * FAR *, /* distance tree result */
inflate_huft *, /* space for trees */
z_streamp)); /* for messages */
z_streamp )); /* for zalloc, zfree functions */
extern int inflate_trees_fixed OF((
uIntf *, /* literal desired/actual bit depth */
uIntf *, /* distance desired/actual bit depth */
inflate_huft * FAR *, /* literal/length tree result */
inflate_huft * FAR *, /* distance tree result */
z_streamp)); /* for memory allocation */
inflate_huft * FAR *)); /* distance tree result */
extern int inflate_trees_free OF((
inflate_huft *, /* tables to free */
z_streamp )); /* for zfree function */

87
security/nss/cmd/zlib/infutil.c
Просмотреть файл

@ -1,87 +0,0 @@
/* inflate_util.c -- data and routines common to blocks and codes
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "zutil.h"
#include "infblock.h"
#include "inftrees.h"
#include "infcodes.h"
#include "infutil.h"
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
/* And'ing with mask[n] masks the lower n bits */
uInt inflate_mask[17] = {
0x0000,
0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
};
/* copy as much as possible from the sliding window to the output area */
int inflate_flush(s, z, r)
inflate_blocks_statef *s;
z_streamp z;
int r;
{
uInt n;
Bytef *p;
Bytef *q;
/* local copies of source and destination pointers */
p = z->next_out;
q = s->read;
/* compute number of bytes to copy as far as end of window */
n = (uInt)((q <= s->write ? s->write : s->end) - q);
if (n > z->avail_out) n = z->avail_out;
if (n && r == Z_BUF_ERROR) r = Z_OK;
/* update counters */
z->avail_out -= n;
z->total_out += n;
/* update check information */
if (s->checkfn != Z_NULL)
z->adler = s->check = (*s->checkfn)(s->check, q, n);
/* copy as far as end of window */
zmemcpy(p, q, n);
p += n;
q += n;
/* see if more to copy at beginning of window */
if (q == s->end)
{
/* wrap pointers */
q = s->window;
if (s->write == s->end)
s->write = s->window;
/* compute bytes to copy */
n = (uInt)(s->write - q);
if (n > z->avail_out) n = z->avail_out;
if (n && r == Z_BUF_ERROR) r = Z_OK;
/* update counters */
z->avail_out -= n;
z->total_out += n;
/* update check information */
if (s->checkfn != Z_NULL)
z->adler = s->check = (*s->checkfn)(s->check, q, n);
/* copy */
zmemcpy(p, q, n);
p += n;
q += n;
}
/* update pointers */
z->next_out = p;
s->read = q;
/* done */
return r;
}

98
security/nss/cmd/zlib/infutil.h
Просмотреть файл

@ -1,98 +0,0 @@
/* infutil.h -- types and macros common to blocks and codes
* Copyright (C) 1995-2002 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
#ifndef _INFUTIL_H
#define _INFUTIL_H
typedef enum {
TYPE, /* get type bits (3, including end bit) */
LENS, /* get lengths for stored */
STORED, /* processing stored block */
TABLE, /* get table lengths */
BTREE, /* get bit lengths tree for a dynamic block */
DTREE, /* get length, distance trees for a dynamic block */
CODES, /* processing fixed or dynamic block */
DRY, /* output remaining window bytes */
DONE, /* finished last block, done */
BAD} /* got a data error--stuck here */
inflate_block_mode;
/* inflate blocks semi-private state */
struct inflate_blocks_state {
/* mode */
inflate_block_mode mode; /* current inflate_block mode */
/* mode dependent information */
union {
uInt left; /* if STORED, bytes left to copy */
struct {
uInt table; /* table lengths (14 bits) */
uInt index; /* index into blens (or border) */
uIntf *blens; /* bit lengths of codes */
uInt bb; /* bit length tree depth */
inflate_huft *tb; /* bit length decoding tree */
} trees; /* if DTREE, decoding info for trees */
struct {
inflate_codes_statef
*codes;
} decode; /* if CODES, current state */
} sub; /* submode */
uInt last; /* true if this block is the last block */
/* mode independent information */
uInt bitk; /* bits in bit buffer */
uLong bitb; /* bit buffer */
inflate_huft *hufts; /* single malloc for tree space */
Bytef *window; /* sliding window */
Bytef *end; /* one byte after sliding window */
Bytef *read; /* window read pointer */
Bytef *write; /* window write pointer */
check_func checkfn; /* check function */
uLong check; /* check on output */
};
/* defines for inflate input/output */
/* update pointers and return */
#define UPDBITS {s->bitb=b;s->bitk=k;}
#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
#define UPDOUT {s->write=q;}
#define UPDATE {UPDBITS UPDIN UPDOUT}
#define LEAVE {UPDATE return inflate_flush(s,z,r);}
/* get bytes and bits */
#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
#define NEXTBYTE (n--,*p++)
#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
#define DUMPBITS(j) {b>>=(j);k-=(j);}
/* output bytes */
#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q)
#define LOADOUT {q=s->write;m=(uInt)WAVAIL;}
#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}}
#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
/* load local pointers */
#define LOAD {LOADIN LOADOUT}
/* masks for lower bits (size given to avoid silly warnings with Visual C++) */
extern uInt inflate_mask[17];
/* copy as much as possible from the sliding window to the output area */
extern int inflate_flush OF((
inflate_blocks_statef *,
z_streamp ,
int));
struct internal_state {int dummy;}; /* for buggy compilers */
#endif

128
security/nss/cmd/zlib/minigzip.c
Просмотреть файл

@ -1,5 +1,5 @@
/* minigzip.c -- simulate gzip using the zlib compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -13,7 +13,7 @@
* or in pipe mode.
*/
/* @(#) $Id: minigzip.c,v 1.2 2003-02-08 08:50:40 wtc%netscape.com Exp $ */
/* $Id: minigzip.c,v 1.3 2003-02-08 15:00:12 wtc%netscape.com Exp $ */
#include <stdio.h>
#include "zlib.h"
@ -25,11 +25,6 @@
extern void exit OF((int));
#endif
#ifdef USE_MMAP
# include <sys/types.h>
# include <sys/mman.h>
# include <sys/stat.h>
#endif
#if defined(MSDOS) || defined(OS2) || defined(WIN32)
# include <fcntl.h>
@ -48,40 +43,31 @@
# define GZ_SUFFIX "-gz"
# define fileno(file) file->__file
#endif
#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fileno */
#endif
#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
extern int unlink OF((const char *));
#endif
#ifndef GZ_SUFFIX
# define GZ_SUFFIX ".gz"
#endif
#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
#define SUFFIX_LEN sizeof(GZ_SUFFIX)
#define BUFLEN 16384
extern int unlink OF((const char *));
#define BUFLEN 4096
#define MAX_NAME_LEN 1024
#ifdef MAXSEG_64K
# define local static
/* Needed for systems with limitation on stack size. */
#else
# define local
#endif
#define local static
/* For MSDOS and other systems with limitation on stack size. For Unix,
#define local
works also.
*/
char *prog;
void error OF((const char *msg));
void gz_compress OF((FILE *in, gzFile out));
#ifdef USE_MMAP
int gz_compress_mmap OF((FILE *in, gzFile out));
#endif
void gz_uncompress OF((gzFile in, FILE *out));
void file_compress OF((char *file, char *mode));
void file_uncompress OF((char *file));
int main OF((int argc, char *argv[]));
void error OF((const char *msg));
void gz_compress OF((FILE *in, gzFile out));
void gz_uncompress OF((gzFile in, FILE *out));
void file_compress OF((char *file));
void file_uncompress OF((char *file));
int main OF((int argc, char *argv[]));
/* ===========================================================================
* Display error message and exit
@ -96,7 +82,6 @@ void error(msg)
/* ===========================================================================
* Compress input to output then close both files.
*/
void gz_compress(in, out)
FILE *in;
gzFile out;
@ -105,12 +90,6 @@ void gz_compress(in, out)
int len;
int err;
#ifdef USE_MMAP
/* Try first compressing with mmap. If mmap fails (minigzip used in a
* pipe), use the normal fread loop.
*/
if (gz_compress_mmap(in, out) == Z_OK) return;
#endif
for (;;) {
len = fread(buf, 1, sizeof(buf), in);
if (ferror(in)) {
@ -125,43 +104,6 @@ void gz_compress(in, out)
if (gzclose(out) != Z_OK) error("failed gzclose");
}
#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
/* Try compressing the input file at once using mmap. Return Z_OK if
* if success, Z_ERRNO otherwise.
*/
int gz_compress_mmap(in, out)
FILE *in;
gzFile out;
{
int len;
int err;
int ifd = fileno(in);
caddr_t buf; /* mmap'ed buffer for the entire input file */
off_t buf_len; /* length of the input file */
struct stat sb;
/* Determine the size of the file, needed for mmap: */
if (fstat(ifd, &sb) < 0) return Z_ERRNO;
buf_len = sb.st_size;
if (buf_len <= 0) return Z_ERRNO;
/* Now do the actual mmap: */
buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
if (buf == (caddr_t)(-1)) return Z_ERRNO;
/* Compress the whole file at once: */
len = gzwrite(out, (char *)buf, (unsigned)buf_len);
if (len != (int)buf_len) error(gzerror(out, &err));
munmap(buf, buf_len);
fclose(in);
if (gzclose(out) != Z_OK) error("failed gzclose");
return Z_OK;
}
#endif /* USE_MMAP */
/* ===========================================================================
* Uncompress input to output then close both files.
*/
@ -192,9 +134,8 @@ void gz_uncompress(in, out)
* Compress the given file: create a corresponding .gz file and remove the
* original.
*/
void file_compress(file, mode)
void file_compress(file)
char *file;
char *mode;
{
local char outfile[MAX_NAME_LEN];
FILE *in;
@ -208,7 +149,7 @@ void file_compress(file, mode)
perror(file);
exit(1);
}
out = gzopen(outfile, mode);
out = gzopen(outfile, "wb"); /* use "wb9" for maximal compression */
if (out == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
exit(1);
@ -260,11 +201,7 @@ void file_uncompress(file)
/* ===========================================================================
* Usage: minigzip [-d] [-f] [-h] [-1 to -9] [files...]
* -d : decompress
* -f : compress with Z_FILTERED
* -h : compress with Z_HUFFMAN_ONLY
* -1 to -9 : compression level
* Usage: minigzip [-d] [files...]
*/
int main(argc, argv)
@ -273,26 +210,15 @@ int main(argc, argv)
{
int uncompr = 0;
gzFile file;
char outmode[20];
strcpy(outmode, "wb6 ");
prog = argv[0];
argc--, argv++;
while (argc > 0) {
if (strcmp(*argv, "-d") == 0)
uncompr = 1;
else if (strcmp(*argv, "-f") == 0)
outmode[3] = 'f';
else if (strcmp(*argv, "-h") == 0)
outmode[3] = 'h';
else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
(*argv)[2] == 0)
outmode[2] = (*argv)[1];
else
break;
argc--, argv++;
if (argc > 0) {
uncompr = (strcmp(*argv, "-d") == 0);
if (uncompr) {
argc--, argv++;
}
}
if (argc == 0) {
SET_BINARY_MODE(stdin);
@ -302,7 +228,7 @@ int main(argc, argv)
if (file == NULL) error("can't gzdopen stdin");
gz_uncompress(file, stdout);
} else {
file = gzdopen(fileno(stdout), outmode);
file = gzdopen(fileno(stdout), "wb"); /* "wb9" for max compr. */
if (file == NULL) error("can't gzdopen stdout");
gz_compress(stdin, file);
}
@ -311,7 +237,7 @@ int main(argc, argv)
if (uncompr) {
file_uncompress(*argv);
} else {
file_compress(*argv, outmode);
file_compress(*argv);
}
} while (argv++, --argc);
}

213
security/nss/cmd/zlib/trees.c
Просмотреть файл

@ -1,8 +1,8 @@
/* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-2002 Jean-loup Gailly
* Copyright (C) 1995-1996 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
/*
* ALGORITHM
*
@ -29,9 +29,7 @@
* Addison-Wesley, 1983. ISBN 0-201-06672-6.
*/
/* @(#) $Id: trees.c,v 1.2 2003-02-08 08:50:40 wtc%netscape.com Exp $ */
/* #define GEN_TREES_H */
/* $Id: trees.c,v 1.3 2003-02-08 15:00:12 wtc%netscape.com Exp $ */
#include "deflate.h"
@ -58,16 +56,16 @@
#define REPZ_11_138 18
/* repeat a zero length 11-138 times (7 bits of repeat count) */
local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
local int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
= {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
local const int extra_dbits[D_CODES] /* extra bits for each distance code */
local int extra_dbits[D_CODES] /* extra bits for each distance code */
= {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */
local int extra_blbits[BL_CODES]/* extra bits for each bit length code */
= {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
local const uch bl_order[BL_CODES]
local uch bl_order[BL_CODES]
= {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
/* The lengths of the bit length codes are sent in order of decreasing
* probability, to avoid transmitting the lengths for unused bit length codes.
@ -82,11 +80,6 @@ local const uch bl_order[BL_CODES]
* Local data. These are initialized only once.
*/
#define DIST_CODE_LEN 512 /* see definition of array dist_code below */
#if defined(GEN_TREES_H) || !defined(STDC)
/* non ANSI compilers may not accept trees.h */
local ct_data static_ltree[L_CODES+2];
/* The static literal tree. Since the bit lengths are imposed, there is no
* need for the L_CODES extra codes used during heap construction. However
@ -99,13 +92,13 @@ local ct_data static_dtree[D_CODES];
* 5 bits.)
*/
uch _dist_code[DIST_CODE_LEN];
/* Distance codes. The first 256 values correspond to the distances
local uch dist_code[512];
/* distance codes. The first 256 values correspond to the distances
* 3 .. 258, the last 256 values correspond to the top 8 bits of
* the 15 bit distances.
*/
uch _length_code[MAX_MATCH-MIN_MATCH+1];
local uch length_code[MAX_MATCH-MIN_MATCH+1];
/* length code for each normalized match length (0 == MIN_MATCH) */
local int base_length[LENGTH_CODES];
@ -114,13 +107,9 @@ local int base_length[LENGTH_CODES];
local int base_dist[D_CODES];
/* First normalized distance for each code (0 = distance of 1) */
#else
# include "trees.h"
#endif /* GEN_TREES_H */
struct static_tree_desc_s {
const ct_data *static_tree; /* static tree or NULL */
const intf *extra_bits; /* extra bits for each code or NULL */
ct_data *static_tree; /* static tree or NULL */
intf *extra_bits; /* extra bits for each code or NULL */
int extra_base; /* base index for extra_bits */
int elems; /* max number of elements in the tree */
int max_length; /* max bit length for the codes */
@ -133,7 +122,7 @@ local static_tree_desc static_d_desc =
{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS};
local static_tree_desc static_bl_desc =
{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
{(ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
/* ===========================================================================
* Local (static) routines in this file.
@ -159,20 +148,23 @@ local void bi_flush OF((deflate_state *s));
local void copy_block OF((deflate_state *s, charf *buf, unsigned len,
int header));
#ifdef GEN_TREES_H
local void gen_trees_header OF((void));
#endif
#ifndef DEBUG
#ifndef DEBUG_NEVER
# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
/* Send a code of the given tree. c and tree must not have side effects */
#else /* DEBUG */
# define send_code(s, c, tree) \
{ if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
{ if (verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
send_bits(s, tree[c].Code, tree[c].Len); }
#endif
#define d_code(dist) \
((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
/* Mapping from a distance to a distance code. dist is the distance - 1 and
* must not have side effects. dist_code[256] and dist_code[257] are never
* used.
*/
/* ===========================================================================
* Output a short LSB first on the stream.
* IN assertion: there is enough room in pendingBuf.
@ -230,15 +222,18 @@ local void send_bits(s, value, length)
#endif /* DEBUG */
#ifndef MAX
#define MAX(a,b) (a >= b ? a : b)
#endif
/* the arguments must not have side effects */
/* ===========================================================================
* Initialize the various 'constant' tables.
* Initialize the various 'constant' tables. In a multi-threaded environment,
* this function may be called by two threads concurrently, but this is
* harmless since both invocations do exactly the same thing.
*/
local void tr_static_init()
{
#if defined(GEN_TREES_H) || !defined(STDC)
static int static_init_done = 0;
int n; /* iterates over tree elements */
int bits; /* bit counter */
@ -250,19 +245,12 @@ local void tr_static_init()
if (static_init_done) return;
/* For some embedded targets, global variables are not initialized: */
static_l_desc.static_tree = static_ltree;
static_l_desc.extra_bits = extra_lbits;
static_d_desc.static_tree = static_dtree;
static_d_desc.extra_bits = extra_dbits;
static_bl_desc.extra_bits = extra_blbits;
/* Initialize the mapping length (0..255) -> length code (0..28) */
length = 0;
for (code = 0; code < LENGTH_CODES-1; code++) {
base_length[code] = length;
for (n = 0; n < (1<<extra_lbits[code]); n++) {
_length_code[length++] = (uch)code;
length_code[length++] = (uch)code;
}
}
Assert (length == 256, "tr_static_init: length != 256");
@ -270,14 +258,14 @@ local void tr_static_init()
* in two different ways: code 284 + 5 bits or code 285, so we
* overwrite length_code[255] to use the best encoding:
*/
_length_code[length-1] = (uch)code;
length_code[length-1] = (uch)code;
/* Initialize the mapping dist (0..32K) -> dist code (0..29) */
dist = 0;
for (code = 0 ; code < 16; code++) {
base_dist[code] = dist;
for (n = 0; n < (1<<extra_dbits[code]); n++) {
_dist_code[dist++] = (uch)code;
dist_code[dist++] = (uch)code;
}
}
Assert (dist == 256, "tr_static_init: dist != 256");
@ -285,7 +273,7 @@ local void tr_static_init()
for ( ; code < D_CODES; code++) {
base_dist[code] = dist << 7;
for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
_dist_code[256 + dist++] = (uch)code;
dist_code[256 + dist++] = (uch)code;
}
}
Assert (dist == 256, "tr_static_init: 256+dist != 512");
@ -309,74 +297,8 @@ local void tr_static_init()
static_dtree[n].Code = bi_reverse((unsigned)n, 5);
}
static_init_done = 1;
# ifdef GEN_TREES_H
gen_trees_header();
# endif
#endif /* defined(GEN_TREES_H) || !defined(STDC) */
}
/* ===========================================================================
* Genererate the file trees.h describing the static trees.
*/
#ifdef GEN_TREES_H
# ifndef DEBUG
# include <stdio.h>
# endif
# define SEPARATOR(i, last, width) \
((i) == (last)? "\n};\n\n" : \
((i) % (width) == (width)-1 ? ",\n" : ", "))
void gen_trees_header()
{
FILE *header = fopen("trees.h", "w");
int i;
Assert (header != NULL, "Can't open trees.h");
fprintf(header,
"/* header created automatically with -DGEN_TREES_H */\n\n");
fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
for (i = 0; i < L_CODES+2; i++) {
fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
}
fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
}
fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
for (i = 0; i < DIST_CODE_LEN; i++) {
fprintf(header, "%2u%s", _dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
}
fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
fprintf(header, "%2u%s", _length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
}
fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
for (i = 0; i < LENGTH_CODES; i++) {
fprintf(header, "%1u%s", base_length[i],
SEPARATOR(i, LENGTH_CODES-1, 20));
}
fprintf(header, "local const int base_dist[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "%5u%s", base_dist[i],
SEPARATOR(i, D_CODES-1, 10));
}
fclose(header);
}
#endif /* GEN_TREES_H */
/* ===========================================================================
* Initialize the tree data structures for a new zlib stream.
*/
@ -385,6 +307,8 @@ void _tr_init(s)
{
tr_static_init();
s->compressed_len = 0L;
s->l_desc.dyn_tree = s->dyn_ltree;
s->l_desc.stat_desc = &static_l_desc;
@ -398,7 +322,6 @@ void _tr_init(s)
s->bi_valid = 0;
s->last_eob_len = 8; /* enough lookahead for inflate */
#ifdef DEBUG
s->compressed_len = 0L;
s->bits_sent = 0L;
#endif
@ -492,12 +415,12 @@ local void gen_bitlen(s, desc)
deflate_state *s;
tree_desc *desc; /* the tree descriptor */
{
ct_data *tree = desc->dyn_tree;
int max_code = desc->max_code;
const ct_data *stree = desc->stat_desc->static_tree;
const intf *extra = desc->stat_desc->extra_bits;
int base = desc->stat_desc->extra_base;
int max_length = desc->stat_desc->max_length;
ct_data *tree = desc->dyn_tree;
int max_code = desc->max_code;
ct_data *stree = desc->stat_desc->static_tree;
intf *extra = desc->stat_desc->extra_bits;
int base = desc->stat_desc->extra_base;
int max_length = desc->stat_desc->max_length;
int h; /* heap index */
int n, m; /* iterate over the tree elements */
int bits; /* bit length */
@ -621,9 +544,9 @@ local void build_tree(s, desc)
deflate_state *s;
tree_desc *desc; /* the tree descriptor */
{
ct_data *tree = desc->dyn_tree;
const ct_data *stree = desc->stat_desc->static_tree;
int elems = desc->stat_desc->elems;
ct_data *tree = desc->dyn_tree;
ct_data *stree = desc->stat_desc->static_tree;
int elems = desc->stat_desc->elems;
int n, m; /* iterate over heap elements */
int max_code = -1; /* largest code with non zero frequency */
int node; /* new node being created */
@ -871,10 +794,9 @@ void _tr_stored_block(s, buf, stored_len, eof)
int eof; /* true if this is the last block for a file */
{
send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */
#ifdef DEBUG
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
s->compressed_len += (stored_len + 4) << 3;
#endif
copy_block(s, buf, (unsigned)stored_len, 1); /* with header */
}
@ -894,9 +816,7 @@ void _tr_align(s)
{
send_bits(s, STATIC_TREES<<1, 3);
send_code(s, END_BLOCK, static_ltree);
#ifdef DEBUG
s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
#endif
bi_flush(s);
/* Of the 10 bits for the empty block, we have already sent
* (10 - bi_valid) bits. The lookahead for the last real code (before
@ -906,9 +826,7 @@ void _tr_align(s)
if (1 + s->last_eob_len + 10 - s->bi_valid < 9) {
send_bits(s, STATIC_TREES<<1, 3);
send_code(s, END_BLOCK, static_ltree);
#ifdef DEBUG
s->compressed_len += 10L;
#endif
bi_flush(s);
}
s->last_eob_len = 7;
@ -916,9 +834,10 @@ void _tr_align(s)
/* ===========================================================================
* Determine the best encoding for the current block: dynamic trees, static
* trees or store, and output the encoded block to the zip file.
* trees or store, and output the encoded block to the zip file. This function
* returns the total compressed length for the file so far.
*/
void _tr_flush_block(s, buf, stored_len, eof)
ulg _tr_flush_block(s, buf, stored_len, eof)
deflate_state *s;
charf *buf; /* input block, or NULL if too old */
ulg stored_len; /* length of input block */
@ -965,6 +884,25 @@ void _tr_flush_block(s, buf, stored_len, eof)
opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
}
/* If compression failed and this is the first and last block,
* and if the .zip file can be seeked (to rewrite the local header),
* the whole file is transformed into a stored file:
*/
#ifdef STORED_FILE_OK
# ifdef FORCE_STORED_FILE
if (eof && s->compressed_len == 0L) { /* force stored file */
# else
if (stored_len <= opt_lenb && eof && s->compressed_len==0L && seekable()) {
# endif
/* Since LIT_BUFSIZE <= 2*WSIZE, the input data must be there: */
if (buf == (charf*)0) error ("block vanished");
copy_block(buf, (unsigned)stored_len, 0); /* without header */
s->compressed_len = stored_len << 3;
s->method = STORED;
} else
#endif /* STORED_FILE_OK */
#ifdef FORCE_STORED
if (buf != (char*)0) { /* force stored block */
#else
@ -986,32 +924,25 @@ void _tr_flush_block(s, buf, stored_len, eof)
#endif
send_bits(s, (STATIC_TREES<<1)+eof, 3);
compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
#ifdef DEBUG
s->compressed_len += 3 + s->static_len;
#endif
} else {
send_bits(s, (DYN_TREES<<1)+eof, 3);
send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
max_blindex+1);
compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
#ifdef DEBUG
s->compressed_len += 3 + s->opt_len;
#endif
}
Assert (s->compressed_len == s->bits_sent, "bad compressed size");
/* The above check is made mod 2^32, for files larger than 512 MB
* and uLong implemented on 32 bits.
*/
init_block(s);
if (eof) {
bi_windup(s);
#ifdef DEBUG
s->compressed_len += 7; /* align on byte boundary */
#endif
}
Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
s->compressed_len-7*eof));
return s->compressed_len >> 3;
}
/* ===========================================================================
@ -1036,13 +967,12 @@ int _tr_tally (s, dist, lc)
(ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
(ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match");
s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
s->dyn_ltree[length_code[lc]+LITERALS+1].Freq++;
s->dyn_dtree[d_code(dist)].Freq++;
}
#ifdef TRUNCATE_BLOCK
/* Try to guess if it is profitable to stop the current block here */
if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
if (s->level > 2 && (s->last_lit & 0xfff) == 0) {
/* Compute an upper bound for the compressed length */
ulg out_length = (ulg)s->last_lit*8L;
ulg in_length = (ulg)((long)s->strstart - s->block_start);
@ -1057,7 +987,6 @@ int _tr_tally (s, dist, lc)
100L - out_length*100L/in_length));
if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
}
#endif
return (s->last_lit == s->lit_bufsize-1);
/* We avoid equality with lit_bufsize because of wraparound at 64K
* on 16 bit machines and because stored blocks are restricted to
@ -1087,7 +1016,7 @@ local void compress_block(s, ltree, dtree)
Tracecv(isgraph(lc), (stderr," '%c' ", lc));
} else {
/* Here, lc is the match length - MIN_MATCH */
code = _length_code[lc];
code = length_code[lc];
send_code(s, code+LITERALS+1, ltree); /* send the length code */
extra = extra_lbits[code];
if (extra != 0) {
@ -1107,7 +1036,7 @@ local void compress_block(s, ltree, dtree)
} /* literal or match pair ? */
/* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow");
Assert((uInt)s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow");
} while (lx < s->last_lit);

10
security/nss/cmd/zlib/uncompr.c
Просмотреть файл

@ -1,9 +1,9 @@
/* uncompr.c -- decompress a memory buffer
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: uncompr.c,v 1.2 2003-02-08 08:50:40 wtc%netscape.com Exp $ */
/* This file was modified since it was taken from the zlib distribution */
/* $Id: uncompr.c,v 1.3 2003-02-08 15:00:12 wtc%netscape.com Exp $ */
#include "zlib.h"
@ -22,7 +22,7 @@
enough memory, Z_BUF_ERROR if there was not enough room in the output
buffer, or Z_DATA_ERROR if the input data was corrupted.
*/
int ZEXPORT uncompress (dest, destLen, source, sourceLen)
PR_PUBLIC_API(int) uncompress (dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
@ -49,7 +49,7 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen)
err = inflate(&stream, Z_FINISH);
if (err != Z_STREAM_END) {
inflateEnd(&stream);
return err == Z_OK ? Z_BUF_ERROR : err;
return err;
}
*destLen = stream.total_out;

137
security/nss/cmd/zlib/zconf.h
Просмотреть файл

@ -1,9 +1,9 @@
/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id: zconf.h,v 1.3 2003-02-08 08:50:41 wtc%netscape.com Exp $ */
/* This file was modified since it was taken from the zlib distribution */
/* $Id: zconf.h,v 1.4 2003-02-08 15:00:12 wtc%netscape.com Exp $ */
#ifndef _ZCONF_H
#define _ZCONF_H
@ -27,10 +27,8 @@
# define inflateInit2_ z_inflateInit2_
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateReset z_inflateReset
# define compress z_compress
# define compress2 z_compress2
# define uncompress z_uncompress
# define adler32 z_adler32
# define crc32 z_crc32
@ -71,13 +69,11 @@
# define UNALIGNED_OK
#endif
#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC)
#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32) || defined(XP_OS2)) && !defined(STDC)
# define STDC
#endif
#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
# ifndef STDC
# define STDC
# endif
#if (defined(__STDC__) || defined(__cplusplus)) && !defined(STDC)
# define STDC
#endif
#ifndef STDC
@ -91,12 +87,6 @@
# define NO_DUMMY_DECL
#endif
/* Old Borland C incorrectly complains about missing returns: */
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
# define NEED_DUMMY_RETURN
#endif
/* Maximum value for memLevel in deflateInit2 */
#ifndef MAX_MEM_LEVEL
# ifdef MAXSEG_64K
@ -106,17 +96,13 @@
# endif
#endif
/* Maximum value for windowBits in deflateInit2 and inflateInit2.
* WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
* created by gzip. (Files created by minigzip can still be extracted by
* gzip.)
*/
/* Maximum value for windowBits in deflateInit2 and inflateInit2 */
#ifndef MAX_WBITS
# define MAX_WBITS 15 /* 32K LZ77 window */
#endif
/* The memory requirements for deflate are (in bytes):
(1 << (windowBits+2)) + (1 << (memLevel+9))
1 << (windowBits+2) + 1 << (memLevel+9)
that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
plus a few kilobytes for small objects. For example, if you want to reduce
the default memory requirements from 256K to 128K, compile with
@ -148,7 +134,7 @@
/* MSC small or medium model */
# define SMALL_MEDIUM
# ifdef _MSC_VER
# define FAR _far
# define FAR __far
# else
# define FAR far
# endif
@ -156,68 +142,19 @@
#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
# ifndef __32BIT__
# define SMALL_MEDIUM
# define FAR _far
# define FAR __far
# endif
#endif
/* Compile with -DZLIB_DLL for Windows DLL support */
#if defined(ZLIB_DLL)
# if defined(_WINDOWS) || defined(WINDOWS)
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
# define ZEXPORT WINAPI
# ifdef WIN32
# define ZEXPORTVA WINAPIV
# else
# define ZEXPORTVA FAR _cdecl _export
# endif
# endif
# if defined (__BORLANDC__)
# if (__BORLANDC__ >= 0x0500) && defined (WIN32)
# include <windows.h>
# define ZEXPORT __declspec(dllexport) WINAPI
# define ZEXPORTRVA __declspec(dllexport) WINAPIV
# else
# if defined (_Windows) && defined (__DLL__)
# define ZEXPORT _export
# define ZEXPORTVA _export
# endif
# endif
# endif
#endif
#if defined (__BEOS__)
# if defined (ZLIB_DLL)
# define ZEXTERN extern __declspec(dllexport)
# else
# define ZEXTERN extern __declspec(dllimport)
# endif
#endif
#ifndef ZEXPORT
# define ZEXPORT
#endif
#ifndef ZEXPORTVA
# define ZEXPORTVA
#endif
#ifndef ZEXTERN
# define ZEXTERN extern
#endif
#ifndef FAR
# define FAR
#endif
#if !defined(MACOS) && !defined(TARGET_OS_MAC)
typedef unsigned char Byte; /* 8 bits */
#endif
typedef unsigned int uInt; /* 16 bits or more */
typedef unsigned long uLong; /* 32 bits or more */
#ifdef SMALL_MEDIUM
/* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
#if defined(__BORLANDC__) && defined(SMALL_MEDIUM)
/* Borland C/C++ ignores FAR inside typedef */
# define Bytef Byte FAR
#else
typedef Byte FAR Bytef;
@ -235,45 +172,19 @@ typedef uLong FAR uLongf;
typedef Byte *voidp;
#endif
#ifdef HAVE_UNISTD_H
# include <sys/types.h> /* for off_t */
# include <unistd.h> /* for SEEK_* and off_t */
# define z_off_t off_t
#endif
#ifndef SEEK_SET
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
#endif
#ifndef z_off_t
# define z_off_t long
#ifdef MOZILLA_CLIENT
#include "prtypes.h"
#else
/* Compile with -DZLIB_DLL for Windows DLL support */
#if (defined(_WINDOWS) || defined(WINDOWS)) && defined(ZLIB_DLL)
# include <windows.h>
# define EXPORT WINAPI
#else
# define EXPORT
#endif
/* MVS linker does not support external names larger than 8 bytes */
#if defined(__MVS__)
# pragma map(deflateInit_,"DEIN")
# pragma map(deflateInit2_,"DEIN2")
# pragma map(deflateEnd,"DEEND")
# pragma map(inflateInit_,"ININ")
# pragma map(inflateInit2_,"ININ2")
# pragma map(inflateEnd,"INEND")
# pragma map(inflateSync,"INSY")
# pragma map(inflateSetDictionary,"INSEDI")
# pragma map(inflate_blocks,"INBL")
# pragma map(inflate_blocks_new,"INBLNE")
# pragma map(inflate_blocks_free,"INBLFR")
# pragma map(inflate_blocks_reset,"INBLRE")
# pragma map(inflate_codes_free,"INCOFR")
# pragma map(inflate_codes,"INCO")
# pragma map(inflate_fast,"INFA")
# pragma map(inflate_flush,"INFLU")
# pragma map(inflate_mask,"INMA")
# pragma map(inflate_set_dictionary,"INSEDI2")
# pragma map(inflate_copyright,"INCOPY")
# pragma map(inflate_trees_bits,"INTRBI")
# pragma map(inflate_trees_dynamic,"INTRDY")
# pragma map(inflate_trees_fixed,"INTRFI")
# pragma map(inflate_trees_free,"INTRFR")
#endif
/* #define PR_PUBLIC_API(type) type */
#endif /* MOZILLA_CLIENT */
#endif /* _ZCONF_H */

621
security/nss/cmd/zlib/zlib.h
Просмотреть файл

@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.1.4, March 11th, 2002
version 1.0.4, Jul 24th, 1996.
Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
Copyright (C) 1995-1996 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
@ -20,44 +20,48 @@
3. This notice may not be removed or altered from any source distribution.
Jean-loup Gailly Mark Adler
jloup@gzip.org madler@alumni.caltech.edu
gzip@prep.ai.mit.edu madler@alumni.caltech.edu
The data format used by the zlib library is described by RFCs (Request for
Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt
(zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
*/
/* This file was modified since it was taken from the zlib distribution */
#ifndef _ZLIB_H
#define _ZLIB_H
#include "zconf.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ZLIB_VERSION "1.1.4"
#include "zconf.h"
#define ZLIB_VERSION "1.0.4"
/*
The 'zlib' compression library provides in-memory compression and
decompression functions, including integrity checks of the uncompressed
data. This version of the library supports only one compression method
(deflation) but other algorithms will be added later and will have the same
(deflation) but other algorithms may be added later and will have the same
stream interface.
For compression the application must provide the output buffer and
may optionally provide the input buffer for optimization. For decompression,
the application must provide the input buffer and may optionally provide
the output buffer for optimization.
Compression can be done in a single step if the buffers are large
enough (for example if an input file is mmap'ed), or can be done by
repeated calls of the compression function. In the latter case, the
application must provide more input and/or consume the output
(providing more output space) before each call.
The library also supports reading and writing files in gzip (.gz) format
with an interface similar to that of stdio.
The library does not install any signal handler. The decoder checks
the consistency of the compressed data, so the library should never
crash even in case of corrupted input.
The library does not install any signal handler. It is recommended to
add at least a handler for SIGSEGV when decompressing; the library checks
the consistency of the input data whenever possible but may go nuts
for some forms of corrupted input.
*/
typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
@ -101,9 +105,6 @@ typedef z_stream FAR *z_streamp;
opaque value.
zalloc must return Z_NULL if there is not enough memory for the object.
If zlib is used in a multi-threaded application, zalloc and zfree must be
thread safe.
On 16-bit systems, the functions zalloc and zfree must be able to allocate
exactly 65536 bytes, but will not be required to allocate more than this
if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
@ -123,7 +124,7 @@ typedef z_stream FAR *z_streamp;
/* constants */
#define Z_NO_FLUSH 0
#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
#define Z_PARTIAL_FLUSH 1
#define Z_SYNC_FLUSH 2
#define Z_FULL_FLUSH 3
#define Z_FINISH 4
@ -168,7 +169,11 @@ typedef z_stream FAR *z_streamp;
/* basic functions */
ZEXTERN const char * ZEXPORT zlibVersion OF((void));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern const char *) zlibVersion (void);
#else
extern const char * EXPORT zlibVersion OF((void));
#endif
/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
If the first character differs, the library code actually used is
not compatible with the zlib.h header file used by the application.
@ -176,7 +181,7 @@ ZEXTERN const char * ZEXPORT zlibVersion OF((void));
*/
/*
ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
extern int EXPORT deflateInit OF((z_streamp strm, int level));
Initializes the internal stream state for compression. The fields
zalloc, zfree and opaque must be initialized before by the caller.
@ -198,15 +203,13 @@ ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
*/
ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflate (z_streamp strm, int flush);
#else
extern int EXPORT deflate OF((z_streamp strm, int flush));
#endif
/*
deflate compresses as much data as possible, and stops when the input
buffer becomes empty or the output buffer becomes full. It may introduce some
output latency (reading input without producing any output) except when
forced to flush.
The detailed semantics are as follows. deflate performs one or both of the
following actions:
Performs one or both of the following actions:
- Compress more input starting at next_in and update next_in and avail_in
accordingly. If not all input can be processed (because there is not
@ -228,23 +231,24 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
and with zero avail_out, it must be called again after making room in the
output buffer because there might be more output pending.
If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
flushed to the output buffer and the output is aligned on a byte boundary, so
that the decompressor can get all input data available so far. (In particular
avail_in is zero after the call if enough output space has been provided
before the call.) Flushing may degrade compression for some compression
algorithms and so it should be used only when necessary.
If flush is set to Z_FULL_FLUSH, all output is flushed as with
Z_SYNC_FLUSH, and the compression state is reset so that decompression can
restart from this point if previous compressed data has been damaged or if
random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
the compression.
If deflate returns with avail_out == 0, this function must be called again
with the same value of the flush parameter and more output space (updated
avail_out), until the flush is complete (deflate returns with non-zero
avail_out).
If the parameter flush is set to Z_PARTIAL_FLUSH, the current compression
block is terminated and flushed to the output buffer so that the
decompressor can get all input data available so far. For method 9, a future
variant on method 8, the current block will be flushed but not terminated.
Z_SYNC_FLUSH has the same effect as partial flush except that the compressed
output is byte aligned (the compressor can clear its internal bit buffer)
and the current block is always terminated; this can be useful if the
compressor has to be restarted from scratch after an interruption (in which
case the internal state of the compressor may be lost).
If flush is set to Z_FULL_FLUSH, the compression block is terminated, a
special marker is output and the compression dictionary is discarded; this
is useful to allow the decompressor to synchronize if one compressed block
has been damaged (see inflateSync below). Flushing degrades compression and
so should be used only when necessary. Using Z_FULL_FLUSH too often can
seriously degrade the compression. If deflate returns with avail_out == 0,
this function must be called again with the same value of the flush
parameter and more output space (updated avail_out), until the flush is
complete (deflate returns with non-zero avail_out).
If the parameter flush is set to Z_FINISH, pending input is processed,
pending output is flushed and deflate returns with Z_STREAM_END if there
@ -259,9 +263,6 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
0.1% larger than avail_in plus 12 bytes. If deflate does not return
Z_STREAM_END, then it must be called again as described above.
deflate() sets strm->adler to the adler32 checksum of all input read
so far (that is, total_in bytes).
deflate() may update data_type if it can make a good guess about
the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered
binary. This field is only for information purposes and does not affect
@ -271,12 +272,15 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
processed or more output produced), Z_STREAM_END if all input has been
consumed and all output has been produced (only when flush is set to
Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
(for example avail_in or avail_out was zero).
if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible.
*/
ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateEnd (z_streamp strm);
#else
extern int EXPORT deflateEnd OF((z_streamp strm));
#endif
/*
All dynamically allocated data structures for this stream are freed.
This function discards any unprocessed input and does not flush any
@ -291,35 +295,28 @@ ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
/*
ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
extern int EXPORT inflateInit OF((z_streamp strm));
Initializes the internal stream state for decompression. The fields
next_in, avail_in, zalloc, zfree and opaque must be initialized before by
the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
value depends on the compression method), inflateInit determines the
compression method from the zlib header and allocates all data structures
accordingly; otherwise the allocation will be deferred to the first call of
inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
use default allocation functions.
zalloc, zfree and opaque must be initialized before by the caller. If
zalloc and zfree are set to Z_NULL, inflateInit updates them to use default
allocation functions.
inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
version assumed by the caller. msg is set to null if there is no error
message. inflateInit does not perform any decompression apart from reading
the zlib header if present: this will be done by inflate(). (So next_in and
avail_in may be modified, but next_out and avail_out are unchanged.)
inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_VERSION_ERROR if the zlib library version is incompatible
with the version assumed by the caller. msg is set to null if there is no
error message. inflateInit does not perform any decompression: this will be
done by inflate().
*/
ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) inflate (z_streamp strm, int flush);
#else
extern int EXPORT inflate OF((z_streamp strm, int flush));
#endif
/*
inflate decompresses as much data as possible, and stops when the input
buffer becomes empty or the output buffer becomes full. It may some
introduce some output latency (reading input without producing any output)
except when forced to flush.
The detailed semantics are as follows. inflate performs one or both of the
following actions:
Performs one or both of the following actions:
- Decompress more input starting at next_in and update next_in and avail_in
accordingly. If not all input can be processed (because there is not
@ -340,9 +337,9 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
must be called again after making room in the output buffer because there
might be more output pending.
If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much
If the parameter flush is set to Z_PARTIAL_FLUSH, inflate flushes as much
output as possible to the output buffer. The flushing behavior of inflate is
not specified for values of the flush parameter other than Z_SYNC_FLUSH
not specified for values of the flush parameter other than Z_PARTIAL_FLUSH
and Z_FINISH, but the current implementation actually flushes as much output
as possible anyway.
@ -357,30 +354,26 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
is never required, but can be used to inform inflate that a faster routine
may be used for the single inflate() call.
If a preset dictionary is needed at this point (see inflateSetDictionary
below), inflate sets strm-adler to the adler32 checksum of the
dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise
it sets strm->adler to the adler32 checksum of all output produced
so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or
an error code as described below. At the end of the stream, inflate()
checks that its computed adler32 checksum is equal to that saved by the
compressor and returns Z_STREAM_END only if the checksum is correct.
inflate() returns Z_OK if some progress has been made (more input processed
or more output produced), Z_STREAM_END if the end of the compressed data has
been reached and all uncompressed output has been produced, Z_NEED_DICT if a
preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
corrupted (input stream not conforming to the zlib format or incorrect
adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent
(for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if no progress is possible or if there was not
enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR
case, the application may then call inflateSync to look for a good
compression block.
inflate() returns Z_OK if some progress has been made (more input
processed or more output produced), Z_STREAM_END if the end of the
compressed data has been reached and all uncompressed output has been
produced, Z_NEED_DICT if a preset dictionary is needed at this point (see
inflateSetDictionary below), Z_DATA_ERROR if the input data was corrupted,
Z_STREAM_ERROR if the stream structure was inconsistent (for example if
next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory,
Z_BUF_ERROR if no progress is possible or if there was not enough room in
the output buffer when Z_FINISH is used. In the Z_DATA_ERROR case, the
application may then call inflateSync to look for a good compression block.
In the Z_NEED_DICT case, strm->adler is set to the Adler32 value of the
dictionary chosen by the compressor.
*/
ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) inflateEnd (z_streamp strm);
#else
extern int EXPORT inflateEnd OF((z_streamp strm));
#endif
/*
All dynamically allocated data structures for this stream are freed.
This function discards any unprocessed input and does not flush any
@ -398,25 +391,26 @@ ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
*/
/*
ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
int level,
int method,
int windowBits,
int memLevel,
int strategy));
extern int EXPORT deflateInit2 OF((z_streamp strm,
int level,
int method,
int windowBits,
int memLevel,
int strategy));
This is another version of deflateInit with more compression options. The
fields next_in, zalloc, zfree and opaque must be initialized before by
the caller.
The method parameter is the compression method. It must be Z_DEFLATED in
this version of the library.
this version of the library. (Method 9 will allow a 64K history buffer and
partial block flushes.)
The windowBits parameter is the base two logarithm of the window size
(the size of the history buffer). It should be in the range 8..15 for this
version of the library. Larger values of this parameter result in better
compression at the expense of memory usage. The default value is 15 if
deflateInit is used instead.
version of the library (the value 16 will be allowed for method 9). Larger
values of this parameter result in better compression at the expense of
memory usage. The default value is 15 if deflateInit is used instead.
The memLevel parameter specifies how much memory should be allocated
for the internal compression state. memLevel=1 uses minimum memory but
@ -435,35 +429,48 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
the compression ratio but not the correctness of the compressed output even
if it is not set appropriately.
deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
method). msg is set to null if there is no error message. deflateInit2 does
not perform any compression: this will be done by deflate().
If next_in is not null, the library will use this buffer to hold also
some history information; the buffer must either hold the entire input
data, or have at least 1<<(windowBits+1) bytes and be writable. If next_in
is null, the library will allocate its own history buffer (and leave next_in
null). next_out need not be provided here but must be provided by the
application for the next call of deflate().
If the history buffer is provided by the application, next_in must
must never be changed by the application since the compressor maintains
information inside this buffer from call to call; the application
must provide more input only by increasing avail_in. next_in is always
reset by the library in this case.
deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was
not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as
an invalid method). msg is set to null if there is no error message.
deflateInit2 does not perform any compression: this will be done by
deflate().
*/
ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dictLength));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateSetDictionary (z_streamp strm,
const Bytef *dictionary,
uInt dictLength);
#else
extern int EXPORT deflateSetDictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dictLength));
#endif
/*
Initializes the compression dictionary from the given byte sequence
without producing any compressed output. This function must be called
immediately after deflateInit, deflateInit2 or deflateReset, before any
call of deflate. The compressor and decompressor must use exactly the same
Initializes the compression dictionary (history buffer) from the given
byte sequence without producing any compressed output. This function must
be called immediately after deflateInit or deflateInit2, before any call
of deflate. The compressor and decompressor must use exactly the same
dictionary (see inflateSetDictionary).
The dictionary should consist of strings (byte sequences) that are likely
to be encountered later in the data to be compressed, with the most commonly
used strings preferably put towards the end of the dictionary. Using a
dictionary is most useful when the data to be compressed is short and can be
predicted with good accuracy; the data can then be compressed better than
with the default empty dictionary.
Depending on the size of the compression data structures selected by
deflateInit or deflateInit2, a part of the dictionary may in effect be
discarded, for example if the dictionary is larger than the window size in
deflate or deflate2. Thus the strings most likely to be useful should be
put at the end of the dictionary, not at the front.
dictionary is most useful when the data to be compressed is short and
can be predicted with good accuracy; the data can then be compressed better
than with the default empty dictionary. In this version of the library,
only the last 32K bytes of the dictionary are used.
Upon return of this function, strm->adler is set to the Adler32 value
of the dictionary; the decompressor may later use this value to determine
which dictionary has been used by the compressor. (The Adler32 value
@ -471,16 +478,24 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
actually used by the compressor.)
deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
parameter is invalid (such as NULL dictionary) or the stream state is
inconsistent (for example if deflate has already been called for this stream
or if the compression method is bsort). deflateSetDictionary does not
perform any compression: this will be done by deflate().
parameter is invalid (such as NULL dictionary) or the stream state
is inconsistent (for example if deflate has already been called for this
stream). deflateSetDictionary does not perform any compression: this will
be done by deflate().
*/
ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
z_streamp source));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateCopy (z_streamp dest, z_streamp source);
#else
extern int EXPORT deflateCopy OF((z_streamp dest, z_streamp source));
#endif
/*
Sets the destination stream as a complete copy of the source stream.
Sets the destination stream as a complete copy of the source stream. If
the source stream is using an application-supplied history buffer, a new
buffer is allocated for the destination stream. The compressed output
buffer is always application-supplied. It's the responsibility of the
application to provide the correct values of next_out and avail_out for the
next call of deflate.
This function can be useful when several compression strategies will be
tried, for example when there are several ways of pre-processing the input
@ -495,7 +510,11 @@ ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
destination.
*/
ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateReset (z_streamp strm);
#else
extern int EXPORT deflateReset OF((z_streamp strm));
#endif
/*
This function is equivalent to deflateEnd followed by deflateInit,
but does not free and reallocate all the internal compression state.
@ -506,17 +525,18 @@ ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
stream state was inconsistent (such as zalloc or state being NULL).
*/
ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
int level,
int strategy));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateParams (z_streamp strm, int level, int strategy);
#else
extern int EXPORT deflateParams OF((z_streamp strm, int level, int strategy));
#endif
/*
Dynamically update the compression level and compression strategy. The
interpretation of level and strategy is as in deflateInit2. This can be
used to switch between compression and straight copy of the input data, or
to switch to a different kind of input data requiring a different
strategy. If the compression level is changed, the input available so far
is compressed with the old level (and may be flushed); the new level will
take effect only at the next call of deflate().
Dynamically update the compression level and compression strategy.
This can be used to switch between compression and straight copy of
the input data, or to switch to a different kind of input data requiring
a different strategy. If the compression level is changed, the input
available so far is compressed with the old level (and may be flushed);
the new level will take effect only at the next call of deflate().
Before the call of deflateParams, the stream state must be set as for
a call of deflate(), since the currently available input may have to
@ -528,37 +548,55 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
*/
/*
ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
int windowBits));
extern int EXPORT inflateInit2 OF((z_streamp strm,
int windowBits));
This is another version of inflateInit with an extra parameter. The
fields next_in, avail_in, zalloc, zfree and opaque must be initialized
before by the caller.
This is another version of inflateInit with more compression options. The
fields next_out, zalloc, zfree and opaque must be initialized before by
the caller.
The windowBits parameter is the base two logarithm of the maximum window
size (the size of the history buffer). It should be in the range 8..15 for
this version of the library. The default value is 15 if inflateInit is used
instead. If a compressed stream with a larger window size is given as
input, inflate() will return with the error code Z_DATA_ERROR instead of
trying to allocate a larger window.
this version of the library (the value 16 will be allowed soon). The
default value is 15 if inflateInit is used instead. If a compressed stream
with a larger window size is given as input, inflate() will return with
the error code Z_DATA_ERROR instead of trying to allocate a larger window.
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative
memLevel). msg is set to null if there is no error message. inflateInit2
does not perform any decompression apart from reading the zlib header if
present: this will be done by inflate(). (So next_in and avail_in may be
modified, but next_out and avail_out are unchanged.)
If next_out is not null, the library will use this buffer for the history
buffer; the buffer must either be large enough to hold the entire output
data, or have at least 1<<windowBits bytes. If next_out is null, the
library will allocate its own buffer (and leave next_out null). next_in
need not be provided here but must be provided by the application for the
next call of inflate().
If the history buffer is provided by the application, next_out must
never be changed by the application since the decompressor maintains
history information inside this buffer from call to call; the application
can only reset next_out to the beginning of the history buffer when
avail_out is zero and all output has been consumed.
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was
not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as
windowBits < 8). msg is set to null if there is no error message.
inflateInit2 does not perform any decompression: this will be done by
inflate().
*/
ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dictLength));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) inflateSetDictionary (z_streamp strm,
const Bytef *dictionary,
uInt dictLength);
#else
extern int EXPORT inflateSetDictionary OF((z_streamp strm,
const Bytef *dictionary,
uInt dictLength));
#endif
/*
Initializes the decompression dictionary from the given uncompressed byte
sequence. This function must be called immediately after a call of inflate
if this call returned Z_NEED_DICT. The dictionary chosen by the compressor
can be determined from the Adler32 value returned by this call of
inflate. The compressor and decompressor must use exactly the same
Initializes the decompression dictionary (history buffer) from the given
uncompressed byte sequence. This function must be called immediately after
a call of inflate if this call returned Z_NEED_DICT. The dictionary chosen
by the compressor can be determined from the Adler32 value returned by this
call of inflate. The compressor and decompressor must use exactly the same
dictionary (see deflateSetDictionary).
inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
@ -569,14 +607,18 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
inflate().
*/
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) inflateSync (z_streamp strm);
#else
extern int EXPORT inflateSync OF((z_streamp strm));
#endif
/*
Skips invalid compressed data until a full flush point (see above the
description of deflate with Z_FULL_FLUSH) can be found, or until all
available input is skipped. No output is provided.
Skips invalid compressed data until the special marker (see deflate()
above) can be found, or until all available input is skipped. No output
is provided.
inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
if no more input was provided, Z_DATA_ERROR if no flush point has been found,
inflateSync returns Z_OK if the special marker has been found, Z_BUF_ERROR
if no more input was provided, Z_DATA_ERROR if no marker has been found,
or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
case, the application may save the current current value of total_in which
indicates where valid compressed data was found. In the error case, the
@ -584,7 +626,11 @@ ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
until success or end of the input data.
*/
ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) inflateReset (z_streamp strm);
#else
extern int EXPORT inflateReset OF((z_streamp strm));
#endif
/*
This function is equivalent to inflateEnd followed by inflateInit,
but does not free and reallocate all the internal decompression state.
@ -600,13 +646,18 @@ ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
/*
The following utility functions are implemented on top of the
basic stream-oriented functions. To simplify the interface, some
default options are assumed (compression level and memory usage,
default options are assumed (compression level, window size,
standard memory allocation functions). The source code of these
utility functions can easily be modified if you need special options.
*/
ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) compress (Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen);
#else
extern int EXPORT compress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
#endif
/*
Compresses the source buffer into the destination buffer. sourceLen is
the byte length of the source buffer. Upon entry, destLen is the total
@ -620,23 +671,13 @@ ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen,
buffer.
*/
ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen,
int level));
/*
Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least 0.1% larger than sourceLen plus
12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
Z_STREAM_ERROR if the level parameter is invalid.
*/
ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) uncompress (Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen);
#else
extern int EXPORT uncompress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
#endif
/*
Decompresses the source buffer into the destination buffer. sourceLen is
the byte length of the source buffer. Upon entry, destLen is the total
@ -656,23 +697,27 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
typedef voidp gzFile;
ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern gzFile) gzopen (const char *path, const char *mode);
#else
extern gzFile EXPORT gzopen OF((const char *path, const char *mode));
#endif
/*
Opens a gzip (.gz) file for reading or writing. The mode parameter
is as in fopen ("rb" or "wb") but can also include a compression level
("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
Huffman only compression as in "wb1h". (See the description
of deflateInit2 for more information about the strategy parameter.)
gzopen can be used to read a file which is not in gzip format; in this
case gzread will directly read from the file without decompression.
("wb9"). gzopen can be used to read a file which is not in gzip format;
in this case gzread will directly read from the file without decompression.
gzopen returns NULL if the file could not be opened or if there was
insufficient memory to allocate the (de)compression state; errno
can be checked to distinguish the two cases (if errno is zero, the
zlib error is Z_MEM_ERROR). */
zlib error is Z_MEM_ERROR).
*/
ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern gzFile) gzdopen (int fd, const char *mode);
#else
extern gzFile EXPORT gzdopen OF((int fd, const char *mode));
#endif
/*
gzdopen() associates a gzFile with the file descriptor fd. File
descriptors are obtained from calls like open, dup, creat, pipe or
@ -685,15 +730,11 @@ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
the (de)compression state.
*/
ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
/*
Dynamically update the compression level or strategy. See the description
of deflateInit2 for the meaning of these parameters.
gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
opened for writing.
*/
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzread (gzFile file, voidp buf, unsigned len);
#else
extern int EXPORT gzread OF((gzFile file, voidp buf, unsigned len));
#endif
/*
Reads the given number of uncompressed bytes from the compressed file.
If the input file was not in gzip format, gzread copies the given number
@ -701,50 +742,22 @@ ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
gzread returns the number of uncompressed bytes actually read (0 for
end of file, -1 for error). */
ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
const voidp buf, unsigned len));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzwrite (gzFile file, const voidp buf, unsigned len);
#else
extern int EXPORT gzwrite OF((gzFile file, const voidp buf, unsigned len));
#endif
/*
Writes the given number of uncompressed bytes into the compressed file.
gzwrite returns the number of uncompressed bytes actually written
(0 in case of error).
*/
ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
/*
Converts, formats, and writes the args to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of
uncompressed bytes actually written (0 in case of error).
*/
ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
/*
Writes the given null-terminated string to the compressed file, excluding
the terminating null character.
gzputs returns the number of characters written, or -1 in case of error.
*/
ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
/*
Reads bytes from the compressed file until len-1 characters are read, or
a newline character is read and transferred to buf, or an end-of-file
condition is encountered. The string is then terminated with a null
character.
gzgets returns buf, or Z_NULL in case of error.
*/
ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
/*
Writes c, converted to an unsigned char, into the compressed file.
gzputc returns the value that was written, or -1 in case of error.
*/
ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
Reads one byte from the compressed file. gzgetc returns this byte
or -1 in case of end of file or error.
*/
ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzflush (gzFile file, int flush);
#else
extern int EXPORT gzflush OF((gzFile file, int flush));
#endif
/*
Flushes all pending output into the compressed file. The parameter
flush is as in the deflate() function. The return value is the zlib
@ -754,54 +767,22 @@ ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
degrade compression.
*/
ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
z_off_t offset, int whence));
/*
Sets the starting position for the next gzread or gzwrite on the
given compressed file. The offset represents a number of bytes in the
uncompressed data stream. The whence parameter is defined as in lseek(2);
the value SEEK_END is not supported.
If the file is opened for reading, this function is emulated but can be
extremely slow. If the file is opened for writing, only forward seeks are
supported; gzseek then compresses a sequence of zeroes up to the new
starting position.
gzseek returns the resulting offset location as measured in bytes from
the beginning of the uncompressed stream, or -1 in case of error, in
particular if the file is opened for writing and the new starting position
would be before the current position.
*/
ZEXTERN int ZEXPORT gzrewind OF((gzFile file));
/*
Rewinds the given file. This function is supported only for reading.
gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
*/
ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file));
/*
Returns the starting position for the next gzread or gzwrite on the
given compressed file. This position represents a number of bytes in the
uncompressed data stream.
gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
*/
ZEXTERN int ZEXPORT gzeof OF((gzFile file));
/*
Returns 1 when EOF has previously been detected reading the given
input stream, otherwise zero.
*/
ZEXTERN int ZEXPORT gzclose OF((gzFile file));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) gzclose (gzFile file);
#else
extern int EXPORT gzclose OF((gzFile file));
#endif
/*
Flushes all pending output if necessary, closes the compressed file
and deallocates all the (de)compression state. The return value is the zlib
error number (see function gzerror below).
*/
ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern const char *) gzerror (gzFile file, int *errnum);
#else
extern const char * EXPORT gzerror OF((gzFile file, int *errnum));
#endif
/*
Returns the error message for the last error which occurred on the
given compressed file. errnum is set to zlib error number. If an
@ -818,7 +799,11 @@ ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
compression library.
*/
ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern uLong) adler32 (uLong adler, const Bytef *buf, uInt len);
#else
extern uLong EXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
#endif
/*
Update a running Adler-32 checksum with the bytes buf[0..len-1] and
@ -835,7 +820,11 @@ ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
if (adler != original_adler) error();
*/
ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern uLong) crc32 (uLong crc, const Bytef *buf, uInt len);
#else
extern uLong EXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
#endif
/*
Update a running crc with the bytes buf[0..len-1] and return the updated
crc. If buf is NULL, this function returns the required initial value
@ -857,34 +846,44 @@ ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
/* deflateInit and inflateInit are macros to allow checking the zlib version
* and the compiler's view of z_stream:
*/
ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
const char *version, int stream_size));
ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
const char *version, int stream_size));
ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method,
int windowBits, int memLevel,
int strategy, const char *version,
int stream_size));
ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits,
const char *version, int stream_size));
#ifdef MOZILLA_CLIENT
PR_PUBLIC_API(extern int) deflateInit_ (z_streamp strm, int level, const char *version,
int stream_size);
PR_PUBLIC_API(extern int) inflateInit_ (z_streamp strm, const char *version,
int stream_size);
PR_PUBLIC_API(extern int) deflateInit2_ (z_streamp strm, int level, int method,
int windowBits, int memLevel, int strategy,
const char *version, int stream_size);
PR_PUBLIC_API(extern int) inflateInit2_ (z_streamp strm, int windowBits,
const char *version, int stream_size);
#else
extern int EXPORT deflateInit_ OF((z_streamp strm, int level, const char *version,
int stream_size));
extern int EXPORT inflateInit_ OF((z_streamp strm, const char *version,
int stream_size));
extern int EXPORT deflateInit2_ OF((z_streamp strm, int level, int method,
int windowBits, int memLevel, int strategy,
const char *version, int stream_size));
extern int EXPORT inflateInit2_ OF((z_streamp strm, int windowBits,
const char *version, int stream_size));
#endif /* MOZILLA_CLIENT */
#define deflateInit(strm, level) \
deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
#define inflateInit(strm) \
inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
(strategy), ZLIB_VERSION, sizeof(z_stream))
(strategy), ZLIB_VERSION, sizeof(z_stream))
#define inflateInit2(strm, windowBits) \
inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL)
struct internal_state {int dummy;}; /* hack for buggy compilers */
#endif
ZEXTERN const char * ZEXPORT zError OF((int err));
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z));
ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
uLongf *get_crc_table OF((void)); /* can be used by asm versions of crc32() */
#ifdef __cplusplus
}

42
security/nss/cmd/zlib/zutil.c
Просмотреть файл

@ -1,12 +1,19 @@
/* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
/* $Id: zutil.c,v 1.3 2003-02-08 15:00:13 wtc%netscape.com Exp $ */
/* @(#) $Id: zutil.c,v 1.2 2003-02-08 08:50:42 wtc%netscape.com Exp $ */
#include <stdio.h>
#include "zutil.h"
#ifdef MOZILLA_CLIENT
#include "prtypes.h"
#include "prlog.h"
#endif
struct internal_state {int dummy;}; /* for buggy compilers */
#ifndef STDC
@ -26,41 +33,24 @@ const char *z_errmsg[10] = {
""};
const char * ZEXPORT zlibVersion()
PR_PUBLIC_API(const char *) zlibVersion()
{
return ZLIB_VERSION;
}
#ifdef DEBUG
# ifndef verbose
# define verbose 0
# endif
int z_verbose = verbose;
#if defined(DEBUG) && defined(MOZILLA_CLIENT)
void z_error (m)
char *m;
{
fprintf(stderr, "%s\n", m);
exit(1);
PR_ASSERT(0);
}
#endif
/* exported to allow conversion of error code to string for compress() and
* uncompress()
*/
const char * ZEXPORT zError(err)
int err;
{
return ERR_MSG(err);
}
#ifndef HAVE_MEMCPY
void zmemcpy(dest, source, len)
Bytef* dest;
const Bytef* source;
Bytef* source;
uInt len;
{
if (len == 0) return;
@ -70,8 +60,8 @@ void zmemcpy(dest, source, len)
}
int zmemcmp(s1, s2, len)
const Bytef* s1;
const Bytef* s2;
Bytef* s1;
Bytef* s2;
uInt len;
{
uInt j;
@ -178,7 +168,7 @@ void zcfree (voidpf opaque, voidpf ptr)
# define MY_ZCALLOC
#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
#if (!defined(_MSC_VER) || (_MSC_VER < 600))
# define _halloc halloc
# define _hfree hfree
#endif

83
security/nss/cmd/zlib/zutil.h
Просмотреть файл

@ -1,30 +1,31 @@
/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* Copyright (C) 1995-1996 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* This file was modified since it was taken from the zlib distribution */
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
/* @(#) $Id: zutil.h,v 1.3 2003-02-08 08:50:42 wtc%netscape.com Exp $ */
/* $Id: zutil.h,v 1.4 2003-02-08 15:00:13 wtc%netscape.com Exp $ */
#ifndef _Z_UTIL_H
#define _Z_UTIL_H
#include "zlib.h"
#if defined(_WIN32_WCE)
#elif defined(MSDOS)||defined(VMS)||defined(CRAY)||defined(WIN32)||defined(RISCOS)
# include <stddef.h>
# include <errno.h>
#else
extern int errno;
#endif
#ifdef STDC
# include <stddef.h>
# include <string.h>
# include <stdlib.h>
#endif
#ifdef NO_ERRNO_H
extern int errno;
#else
# include <errno.h>
#endif
#ifndef local
# define local static
@ -75,14 +76,8 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
#ifdef MSDOS
# define OS_CODE 0x00
# if defined(__TURBOC__) || defined(__BORLANDC__)
# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */
void _Cdecl farfree( void *block );
void *_Cdecl farmalloc( unsigned long nbytes );
# else
# include <alloc.h>
# endif
# ifdef __TURBOC__
# include <alloc.h>
# else /* MSC or DJGPP */
# include <malloc.h>
# endif
@ -98,7 +93,7 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(VAXC) || defined(VMS)
# define OS_CODE 0x02
# define F_OPEN(name, mode) \
# define FOPEN(name, mode) \
fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
#endif
@ -110,15 +105,8 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
# define OS_CODE 0x05
#endif
#if defined(MACOS) || defined(TARGET_OS_MAC)
#ifdef MACOS
# define OS_CODE 0x07
# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fdopen */
# else
# ifndef fdopen
# define fdopen(fd,mode) NULL /* No fdopen() */
# endif
# endif
#endif
#ifdef __50SERIES /* Prime/PRIMOS */
@ -133,25 +121,22 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
# define fdopen(fd,mode) NULL /* No fdopen() */
#endif
#if (defined(_MSC_VER) && (_MSC_VER > 600))
# define fdopen(fd,type) _fdopen(fd,type)
#endif
/* Common defaults */
#ifndef OS_CODE
# define OS_CODE 0x03 /* assume Unix */
#endif
#ifndef F_OPEN
# define F_OPEN(name, mode) fopen((name), (mode))
#ifndef FOPEN
# define FOPEN(name, mode) fopen((name), (mode))
#endif
/* functions */
#ifdef HAVE_STRERROR
#ifndef MOZILLA_CLIENT
extern char *strerror OF((int));
#endif
# define zstrerror(errnum) strerror(errnum)
#else
# define zstrerror(errnum) ""
@ -160,10 +145,9 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(pyr)
# define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(_MSC_VER)
/* Use our own functions for small and medium model with MSC <= 5.0.
* You may have to use the same strategy for Borland C (untested).
* The __SC__ check is for Symantec.
*/
# define NO_MEMCPY
#endif
@ -181,23 +165,30 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
# define zmemzero(dest, len) memset(dest, 0, len)
# endif
#else
extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
extern void zmemcpy OF((Bytef* dest, Bytef* source, uInt len));
extern int zmemcmp OF((Bytef* s1, Bytef* s2, uInt len));
extern void zmemzero OF((Bytef* dest, uInt len));
#endif
/* Diagnostic functions */
#ifdef DEBUG
#ifdef DEBUG_ZLIB
# include <stdio.h>
extern int z_verbose;
# ifndef verbose
# define verbose 0
# endif
extern void z_error OF((char *m));
# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
# define Trace(x) {if (z_verbose>=0) fprintf x ;}
# define Tracev(x) {if (z_verbose>0) fprintf x ;}
# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
# define Trace(x) fprintf x
# define Tracev(x) {if (verbose) fprintf x ;}
# define Tracevv(x) {if (verbose>1) fprintf x ;}
# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
# include <stdio.h>
# ifndef verbose
# define verbose 0
# endif
extern void z_error OF((char *m));
# define Assert(cond,msg)
# define Trace(x)
# define Tracev(x)
@ -207,8 +198,8 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
#endif
typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf,
uInt len));
typedef uLong (*check_func) OF((uLong check, const Bytef *buf, uInt len));
voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
void zcfree OF((voidpf opaque, voidpf ptr));