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Message-Id: <1180971395.6313.74.camel@localhost.localdomain>
Date: Mon, 04 Jun 2007 16:36:35 +0100
From: Richard Purdie <rpurdie@...nedhand.com>
To: akpm <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>
Cc: Vladimir Saveliev <vs@...esys.com>,
Edward Shishkin <edward@...esys.com>
Subject: [PATCH -mm 2/5] reiser4: use lzo library functions
Convert Reiser4 to use lzo implementation in lib/lzo/ instead of
including its own copy of minilzo.
This fixes a security issue by switching to the _safe LZO decompression
function and includes a small fix from Edward Shishkin.
Signed-off-by: Richard Purdie <rpurdie@...nedhand.com>
---
fs/reiser4/Kconfig | 1
fs/reiser4/Makefile | 1
fs/reiser4/plugin/compress/Makefile | 1
fs/reiser4/plugin/compress/compress.c | 27
fs/reiser4/plugin/compress/lzoconf.h | 216 ---
fs/reiser4/plugin/compress/minilzo.c | 1967 ----------------------------------
fs/reiser4/plugin/compress/minilzo.h | 70 -
7 files changed, 13 insertions(+), 2270 deletions(-)
Index: linux-2.6.21/fs/reiser4/Kconfig
===================================================================
--- linux-2.6.21.orig/fs/reiser4/Kconfig 2007-06-04 09:49:02.000000000 +0100
+++ linux-2.6.21/fs/reiser4/Kconfig 2007-06-04 10:05:05.000000000 +0100
@@ -3,6 +3,7 @@ config REISER4_FS
depends on EXPERIMENTAL
select ZLIB_INFLATE
select ZLIB_DEFLATE
+ select LZO
select CRYPTO
help
Reiser4 is a filesystem that performs all filesystem operations
Index: linux-2.6.21/fs/reiser4/Makefile
===================================================================
--- linux-2.6.21.orig/fs/reiser4/Makefile 2007-06-04 09:49:02.000000000 +0100
+++ linux-2.6.21/fs/reiser4/Makefile 2007-06-04 10:05:05.000000000 +0100
@@ -70,7 +70,6 @@ reiser4-y := \
plugin/crypto/cipher.o \
plugin/crypto/digest.o \
\
- plugin/compress/minilzo.o \
plugin/compress/compress.o \
plugin/compress/compress_mode.o \
\
Index: linux-2.6.21/fs/reiser4/plugin/compress/Makefile
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/Makefile 2007-06-04 09:49:02.000000000 +0100
+++ linux-2.6.21/fs/reiser4/plugin/compress/Makefile 2007-06-04 10:05:05.000000000 +0100
@@ -2,5 +2,4 @@ obj-$(CONFIG_REISER4_FS) += compress_plu
compress_plugins-objs := \
compress.o \
- minilzo.o \
compress_mode.o
Index: linux-2.6.21/fs/reiser4/plugin/compress/compress.c
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/compress.c 2007-06-04 09:49:02.000000000 +0100
+++ linux-2.6.21/fs/reiser4/plugin/compress/compress.c 2007-06-04 10:06:21.000000000 +0100
@@ -4,8 +4,8 @@
#include "../../debug.h"
#include "../../inode.h"
#include "../plugin.h"
-#include "minilzo.h"
+#include <linux/lzo.h>
#include <linux/zlib.h>
#include <linux/types.h>
#include <linux/hardirq.h>
@@ -226,11 +226,7 @@ gzip1_decompress(coa_t coa, __u8 * src_f
static int lzo1_init(void)
{
- int ret;
- ret = lzo_init();
- if (ret != LZO_E_OK)
- warning("edward-848", "lzo_init() failed with ret = %d\n", ret);
- return ret;
+ return 0;
}
static int lzo1_overrun(unsigned in_len)
@@ -238,9 +234,6 @@ static int lzo1_overrun(unsigned in_len)
return in_len / 64 + 16 + 3;
}
-#define LZO_HEAP_SIZE(size) \
- sizeof(lzo_align_t) * (((size) + (sizeof(lzo_align_t) - 1)) / sizeof(lzo_align_t))
-
static coa_t lzo1_alloc(tfm_action act)
{
int ret = 0;
@@ -248,12 +241,12 @@ static coa_t lzo1_alloc(tfm_action act)
switch (act) {
case TFMA_WRITE: /* compress */
- coa = reiser4_vmalloc(LZO_HEAP_SIZE(LZO1X_1_MEM_COMPRESS));
+ coa = reiser4_vmalloc(LZO1X_1_MEM_COMPRESS);
if (!coa) {
ret = -ENOMEM;
break;
}
- memset(coa, 0, LZO_HEAP_SIZE(LZO1X_1_MEM_COMPRESS));
+ memset(coa, 0, LZO1X_1_MEM_COMPRESS);
case TFMA_READ: /* decompress */
break;
default:
@@ -295,20 +288,22 @@ static void
lzo1_compress(coa_t coa, __u8 * src_first, unsigned src_len,
__u8 * dst_first, unsigned *dst_len)
{
+ unsigned long dstlen = *dst_len;
int result;
assert("edward-846", coa != NULL);
assert("edward-847", src_len != 0);
- result = lzo1x_1_compress(src_first, src_len, dst_first, dst_len, coa);
- if (result != LZO_E_OK) {
+ result = lzo1x_1_compress(src_first, src_len, dst_first, &dstlen, coa);
+ if (unlikely(result != LZO_E_OK)) {
warning("edward-849", "lzo1x_1_compress failed\n");
goto out;
}
- if (*dst_len >= src_len) {
+ if (dstlen >= src_len) {
//warning("edward-850", "lzo1x_1_compress: incompressible data\n");
goto out;
}
+ *dst_len = dstlen;
return;
out:
*dst_len = src_len;
@@ -319,14 +314,16 @@ static void
lzo1_decompress(coa_t coa, __u8 * src_first, unsigned src_len,
__u8 * dst_first, unsigned *dst_len)
{
+ unsigned long dstlen = *dst_len;
int result;
assert("edward-851", coa == NULL);
assert("edward-852", src_len != 0);
- result = lzo1x_decompress(src_first, src_len, dst_first, dst_len, NULL);
+ result = lzo1x_decompress_safe(src_first, src_len, dst_first, &dstlen, NULL);
if (result != LZO_E_OK)
warning("edward-853", "lzo1x_1_decompress failed\n");
+ *dst_len = dstlen;
return;
}
Index: linux-2.6.21/fs/reiser4/plugin/compress/lzoconf.h
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/lzoconf.h 2007-06-04 09:49:02.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,216 +0,0 @@
-/* lzoconf.h -- configuration for the LZO real-time data compression library
- adopted for reiser4 compression transform plugin.
-
- This file is part of the LZO real-time data compression library
- and not included in any proprietary licenses of reiser4.
-
- Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
- All Rights Reserved.
-
- The LZO library is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
-
- The LZO library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the LZO library; see the file COPYING.
- If not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- Markus F.X.J. Oberhumer
- <markus@...rhumer.com>
- http://www.oberhumer.com/opensource/lzo/
- */
-
-#include <linux/kernel.h> /* for UINT_MAX, ULONG_MAX - edward */
-
-#ifndef __LZOCONF_H
-#define __LZOCONF_H
-
-#define LZO_VERSION 0x1080
-#define LZO_VERSION_STRING "1.08"
-#define LZO_VERSION_DATE "Jul 12 2002"
-
-/* internal Autoconf configuration file - only used when building LZO */
-
-/***********************************************************************
-// LZO requires a conforming <limits.h>
-************************************************************************/
-
-#define CHAR_BIT 8
-#define USHRT_MAX 0xffff
-
-/* workaround a cpp bug under hpux 10.20 */
-#define LZO_0xffffffffL 4294967295ul
-
-/***********************************************************************
-// architecture defines
-************************************************************************/
-
-#if !defined(__LZO_i386)
-# if defined(__i386__) || defined(__386__) || defined(_M_IX86)
-# define __LZO_i386
-# endif
-#endif
-
-/* memory checkers */
-#if !defined(__LZO_CHECKER)
-# if defined(__BOUNDS_CHECKING_ON)
-# define __LZO_CHECKER
-# elif defined(__CHECKER__)
-# define __LZO_CHECKER
-# elif defined(__INSURE__)
-# define __LZO_CHECKER
-# elif defined(__PURIFY__)
-# define __LZO_CHECKER
-# endif
-#endif
-
-/***********************************************************************
-// integral and pointer types
-************************************************************************/
-
-/* Integral types with 32 bits or more */
-#if !defined(LZO_UINT32_MAX)
-# if (UINT_MAX >= LZO_0xffffffffL)
- typedef unsigned int lzo_uint32;
- typedef int lzo_int32;
-# define LZO_UINT32_MAX UINT_MAX
-# define LZO_INT32_MAX INT_MAX
-# define LZO_INT32_MIN INT_MIN
-# elif (ULONG_MAX >= LZO_0xffffffffL)
- typedef unsigned long lzo_uint32;
- typedef long lzo_int32;
-# define LZO_UINT32_MAX ULONG_MAX
-# define LZO_INT32_MAX LONG_MAX
-# define LZO_INT32_MIN LONG_MIN
-# else
-# error "lzo_uint32"
-# endif
-#endif
-
-/* lzo_uint is used like size_t */
-#if !defined(LZO_UINT_MAX)
-# if (UINT_MAX >= LZO_0xffffffffL)
- typedef unsigned int lzo_uint;
- typedef int lzo_int;
-# define LZO_UINT_MAX UINT_MAX
-# define LZO_INT_MAX INT_MAX
-# define LZO_INT_MIN INT_MIN
-# elif (ULONG_MAX >= LZO_0xffffffffL)
- typedef unsigned long lzo_uint;
- typedef long lzo_int;
-# define LZO_UINT_MAX ULONG_MAX
-# define LZO_INT_MAX LONG_MAX
-# define LZO_INT_MIN LONG_MIN
-# else
-# error "lzo_uint"
-# endif
-#endif
-
- typedef int lzo_bool;
-
-/***********************************************************************
-// memory models
-************************************************************************/
-
-/* Memory model that allows to access memory at offsets of lzo_uint. */
-#if !defined(__LZO_MMODEL)
-# if (LZO_UINT_MAX <= UINT_MAX)
-# define __LZO_MMODEL
-# else
-# error "__LZO_MMODEL"
-# endif
-#endif
-
-/* no typedef here because of const-pointer issues */
-#define lzo_byte unsigned char __LZO_MMODEL
-#define lzo_bytep unsigned char __LZO_MMODEL *
-#define lzo_charp char __LZO_MMODEL *
-#define lzo_voidp void __LZO_MMODEL *
-#define lzo_shortp short __LZO_MMODEL *
-#define lzo_ushortp unsigned short __LZO_MMODEL *
-#define lzo_uint32p lzo_uint32 __LZO_MMODEL *
-#define lzo_int32p lzo_int32 __LZO_MMODEL *
-#define lzo_uintp lzo_uint __LZO_MMODEL *
-#define lzo_intp lzo_int __LZO_MMODEL *
-#define lzo_voidpp lzo_voidp __LZO_MMODEL *
-#define lzo_bytepp lzo_bytep __LZO_MMODEL *
-
-#ifndef lzo_sizeof_dict_t
-# define lzo_sizeof_dict_t sizeof(lzo_bytep)
-#endif
-
-typedef int (*lzo_compress_t) (const lzo_byte * src, lzo_uint src_len,
- lzo_byte * dst, lzo_uintp dst_len,
- lzo_voidp wrkmem);
-
-
-/***********************************************************************
-// error codes and prototypes
-************************************************************************/
-
-/* Error codes for the compression/decompression functions. Negative
- * values are errors, positive values will be used for special but
- * normal events.
- */
-#define LZO_E_OK 0
-#define LZO_E_ERROR (-1)
-#define LZO_E_OUT_OF_MEMORY (-2) /* not used right now */
-#define LZO_E_NOT_COMPRESSIBLE (-3) /* not used right now */
-#define LZO_E_INPUT_OVERRUN (-4)
-#define LZO_E_OUTPUT_OVERRUN (-5)
-#define LZO_E_LOOKBEHIND_OVERRUN (-6)
-#define LZO_E_EOF_NOT_FOUND (-7)
-#define LZO_E_INPUT_NOT_CONSUMED (-8)
-
-/* lzo_init() should be the first function you call.
- * Check the return code !
- *
- * lzo_init() is a macro to allow checking that the library and the
- * compiler's view of various types are consistent.
- */
-#define lzo_init() __lzo_init2(LZO_VERSION,(int)sizeof(short),(int)sizeof(int),\
- (int)sizeof(long),(int)sizeof(lzo_uint32),(int)sizeof(lzo_uint),\
- (int)lzo_sizeof_dict_t,(int)sizeof(char *),(int)sizeof(lzo_voidp),\
- (int)sizeof(lzo_compress_t))
- extern int __lzo_init2(unsigned, int, int, int, int, int, int,
- int, int, int);
-
-/* checksum functions */
-extern lzo_uint32 lzo_crc32(lzo_uint32 _c, const lzo_byte * _buf,
- lzo_uint _len);
-/* misc. */
- typedef union {
- lzo_bytep p;
- lzo_uint u;
- } __lzo_pu_u;
- typedef union {
- lzo_bytep p;
- lzo_uint32 u32;
- } __lzo_pu32_u;
- typedef union {
- void *vp;
- lzo_bytep bp;
- lzo_uint32 u32;
- long l;
- } lzo_align_t;
-
-#define LZO_PTR_ALIGN_UP(_ptr,_size) \
- ((_ptr) + (lzo_uint) __lzo_align_gap((const lzo_voidp)(_ptr),(lzo_uint)(_size)))
-
-/* deprecated - only for backward compatibility */
-#define LZO_ALIGN(_ptr,_size) LZO_PTR_ALIGN_UP(_ptr,_size)
-
-#endif /* already included */
Index: linux-2.6.21/fs/reiser4/plugin/compress/minilzo.c
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/minilzo.c 2007-06-04 09:49:02.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,1967 +0,0 @@
-/* minilzo.c -- mini subset of the LZO real-time data compression library
- adopted for reiser4 compression transform plugin.
-
- This file is part of the LZO real-time data compression library
- and not included in any proprietary licenses of reiser4.
-
- Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
- All Rights Reserved.
-
- The LZO library is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
-
- The LZO library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the LZO library; see the file COPYING.
- If not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- Markus F.X.J. Oberhumer
- <markus@...rhumer.com>
- http://www.oberhumer.com/opensource/lzo/
- */
-
-/*
- * NOTE:
- * the full LZO package can be found at
- * http://www.oberhumer.com/opensource/lzo/
- */
-
-#include "../../debug.h" /* for reiser4 assert macro -edward */
-
-#define __LZO_IN_MINILZO
-#define LZO_BUILD
-
-#include "minilzo.h"
-
-#if !defined(MINILZO_VERSION) || (MINILZO_VERSION != 0x1080)
-# error "version mismatch in miniLZO source files"
-#endif
-
-#ifndef __LZO_CONF_H
-#define __LZO_CONF_H
-
-# define BOUNDS_CHECKING_OFF_DURING(stmt) stmt
-# define BOUNDS_CHECKING_OFF_IN_EXPR(expr) (expr)
-
-# define HAVE_MEMCMP
-# define HAVE_MEMCPY
-# define HAVE_MEMMOVE
-# define HAVE_MEMSET
-
-#undef NDEBUG
-#if !defined(LZO_DEBUG)
-# define NDEBUG
-#endif
-#if defined(LZO_DEBUG) || !defined(NDEBUG)
-# if !defined(NO_STDIO_H)
-# include <stdio.h>
-# endif
-#endif
-
-#if !defined(LZO_COMPILE_TIME_ASSERT)
-# define LZO_COMPILE_TIME_ASSERT(expr) \
- { typedef int __lzo_compile_time_assert_fail[1 - 2 * !(expr)]; }
-#endif
-
-#if !defined(LZO_UNUSED)
-# if 1
-# define LZO_UNUSED(var) ((void)&var)
-# elif 0
-# define LZO_UNUSED(var) { typedef int __lzo_unused[sizeof(var) ? 2 : 1]; }
-# else
-# define LZO_UNUSED(parm) (parm = parm)
-# endif
-#endif
-
-#if defined(NO_MEMCMP)
-# undef HAVE_MEMCMP
-#endif
-
-#if !defined(HAVE_MEMSET)
-# undef memset
-# define memset lzo_memset
-#endif
-
-# define LZO_BYTE(x) ((unsigned char) ((x) & 0xff))
-
-#define LZO_MAX(a,b) ((a) >= (b) ? (a) : (b))
-#define LZO_MIN(a,b) ((a) <= (b) ? (a) : (b))
-#define LZO_MAX3(a,b,c) ((a) >= (b) ? LZO_MAX(a,c) : LZO_MAX(b,c))
-#define LZO_MIN3(a,b,c) ((a) <= (b) ? LZO_MIN(a,c) : LZO_MIN(b,c))
-
-#define lzo_sizeof(type) ((lzo_uint) (sizeof(type)))
-
-#define LZO_HIGH(array) ((lzo_uint) (sizeof(array)/sizeof(*(array))))
-
-#define LZO_SIZE(bits) (1u << (bits))
-#define LZO_MASK(bits) (LZO_SIZE(bits) - 1)
-
-#define LZO_LSIZE(bits) (1ul << (bits))
-#define LZO_LMASK(bits) (LZO_LSIZE(bits) - 1)
-
-#define LZO_USIZE(bits) ((lzo_uint) 1 << (bits))
-#define LZO_UMASK(bits) (LZO_USIZE(bits) - 1)
-
-#define LZO_STYPE_MAX(b) (((1l << (8*(b)-2)) - 1l) + (1l << (8*(b)-2)))
-#define LZO_UTYPE_MAX(b) (((1ul << (8*(b)-1)) - 1ul) + (1ul << (8*(b)-1)))
-
-#if !defined(SIZEOF_UNSIGNED)
-# if (UINT_MAX == 0xffff)
-# define SIZEOF_UNSIGNED 2
-# elif (UINT_MAX == LZO_0xffffffffL)
-# define SIZEOF_UNSIGNED 4
-# elif (UINT_MAX >= LZO_0xffffffffL)
-# define SIZEOF_UNSIGNED 8
-# else
-# error "SIZEOF_UNSIGNED"
-# endif
-#endif
-
-#if !defined(SIZEOF_UNSIGNED_LONG)
-# if (ULONG_MAX == LZO_0xffffffffL)
-# define SIZEOF_UNSIGNED_LONG 4
-# elif (ULONG_MAX >= LZO_0xffffffffL)
-# define SIZEOF_UNSIGNED_LONG 8
-# else
-# error "SIZEOF_UNSIGNED_LONG"
-# endif
-#endif
-
-#if !defined(SIZEOF_SIZE_T)
-# define SIZEOF_SIZE_T SIZEOF_UNSIGNED
-#endif
-#if !defined(SIZE_T_MAX)
-# define SIZE_T_MAX LZO_UTYPE_MAX(SIZEOF_SIZE_T)
-#endif
-
-#if 1 && defined(__LZO_i386) && (UINT_MAX == LZO_0xffffffffL)
-# if !defined(LZO_UNALIGNED_OK_2) && (USHRT_MAX == 0xffff)
-# define LZO_UNALIGNED_OK_2
-# endif
-# if !defined(LZO_UNALIGNED_OK_4) && (LZO_UINT32_MAX == LZO_0xffffffffL)
-# define LZO_UNALIGNED_OK_4
-# endif
-#endif
-
-#if defined(LZO_UNALIGNED_OK_2) || defined(LZO_UNALIGNED_OK_4)
-# if !defined(LZO_UNALIGNED_OK)
-# define LZO_UNALIGNED_OK
-# endif
-#endif
-
-#if defined(__LZO_NO_UNALIGNED)
-# undef LZO_UNALIGNED_OK
-# undef LZO_UNALIGNED_OK_2
-# undef LZO_UNALIGNED_OK_4
-#endif
-
-#if defined(LZO_UNALIGNED_OK_2) && (USHRT_MAX != 0xffff)
-# error "LZO_UNALIGNED_OK_2 must not be defined on this system"
-#endif
-#if defined(LZO_UNALIGNED_OK_4) && (LZO_UINT32_MAX != LZO_0xffffffffL)
-# error "LZO_UNALIGNED_OK_4 must not be defined on this system"
-#endif
-
-#if defined(__LZO_NO_ALIGNED)
-# undef LZO_ALIGNED_OK_4
-#endif
-
-#if defined(LZO_ALIGNED_OK_4) && (LZO_UINT32_MAX != LZO_0xffffffffL)
-# error "LZO_ALIGNED_OK_4 must not be defined on this system"
-#endif
-
-#define LZO_LITTLE_ENDIAN 1234
-#define LZO_BIG_ENDIAN 4321
-#define LZO_PDP_ENDIAN 3412
-
-#if !defined(LZO_BYTE_ORDER)
-# if defined(MFX_BYTE_ORDER)
-# define LZO_BYTE_ORDER MFX_BYTE_ORDER
-# elif defined(__LZO_i386)
-# define LZO_BYTE_ORDER LZO_LITTLE_ENDIAN
-# elif defined(BYTE_ORDER)
-# define LZO_BYTE_ORDER BYTE_ORDER
-# elif defined(__BYTE_ORDER)
-# define LZO_BYTE_ORDER __BYTE_ORDER
-# endif
-#endif
-
-#if defined(LZO_BYTE_ORDER)
-# if (LZO_BYTE_ORDER != LZO_LITTLE_ENDIAN) && \
- (LZO_BYTE_ORDER != LZO_BIG_ENDIAN)
-# error "invalid LZO_BYTE_ORDER"
-# endif
-#endif
-
-#if defined(LZO_UNALIGNED_OK) && !defined(LZO_BYTE_ORDER)
-# error "LZO_BYTE_ORDER is not defined"
-#endif
-
-#define LZO_OPTIMIZE_GNUC_i386_IS_BUGGY
-
-#if defined(NDEBUG) && !defined(LZO_DEBUG) && !defined(__LZO_CHECKER)
-# if defined(__GNUC__) && defined(__i386__)
-# if !defined(LZO_OPTIMIZE_GNUC_i386_IS_BUGGY)
-# define LZO_OPTIMIZE_GNUC_i386
-# endif
-# endif
-#endif
-
-extern const lzo_uint32 _lzo_crc32_table[256];
-
-#define _LZO_STRINGIZE(x) #x
-#define _LZO_MEXPAND(x) _LZO_STRINGIZE(x)
-
-#define _LZO_CONCAT2(a,b) a ## b
-#define _LZO_CONCAT3(a,b,c) a ## b ## c
-#define _LZO_CONCAT4(a,b,c,d) a ## b ## c ## d
-#define _LZO_CONCAT5(a,b,c,d,e) a ## b ## c ## d ## e
-
-#define _LZO_ECONCAT2(a,b) _LZO_CONCAT2(a,b)
-#define _LZO_ECONCAT3(a,b,c) _LZO_CONCAT3(a,b,c)
-#define _LZO_ECONCAT4(a,b,c,d) _LZO_CONCAT4(a,b,c,d)
-#define _LZO_ECONCAT5(a,b,c,d,e) _LZO_CONCAT5(a,b,c,d,e)
-
-#ifndef __LZO_PTR_H
-#define __LZO_PTR_H
-
-#if !defined(lzo_ptrdiff_t)
-# if (UINT_MAX >= LZO_0xffffffffL)
-typedef ptrdiff_t lzo_ptrdiff_t;
-# else
-typedef long lzo_ptrdiff_t;
-# endif
-#endif
-
-#if !defined(__LZO_HAVE_PTR_T)
-# if defined(lzo_ptr_t)
-# define __LZO_HAVE_PTR_T
-# endif
-#endif
-#if !defined(__LZO_HAVE_PTR_T)
-# if defined(SIZEOF_CHAR_P) && defined(SIZEOF_UNSIGNED_LONG)
-# if (SIZEOF_CHAR_P == SIZEOF_UNSIGNED_LONG)
-typedef unsigned long lzo_ptr_t;
-typedef long lzo_sptr_t;
-# define __LZO_HAVE_PTR_T
-# endif
-# endif
-#endif
-#if !defined(__LZO_HAVE_PTR_T)
-# if defined(SIZEOF_CHAR_P) && defined(SIZEOF_UNSIGNED)
-# if (SIZEOF_CHAR_P == SIZEOF_UNSIGNED)
-typedef unsigned int lzo_ptr_t;
-typedef int lzo_sptr_t;
-# define __LZO_HAVE_PTR_T
-# endif
-# endif
-#endif
-#if !defined(__LZO_HAVE_PTR_T)
-# if defined(SIZEOF_CHAR_P) && defined(SIZEOF_UNSIGNED_SHORT)
-# if (SIZEOF_CHAR_P == SIZEOF_UNSIGNED_SHORT)
-typedef unsigned short lzo_ptr_t;
-typedef short lzo_sptr_t;
-# define __LZO_HAVE_PTR_T
-# endif
-# endif
-#endif
-#if !defined(__LZO_HAVE_PTR_T)
-# if defined(LZO_HAVE_CONFIG_H) || defined(SIZEOF_CHAR_P)
-# error "no suitable type for lzo_ptr_t"
-# else
-typedef unsigned long lzo_ptr_t;
-typedef long lzo_sptr_t;
-# define __LZO_HAVE_PTR_T
-# endif
-#endif
-
-#define PTR(a) ((lzo_ptr_t) (a))
-#define PTR_LINEAR(a) PTR(a)
-#define PTR_ALIGNED_4(a) ((PTR_LINEAR(a) & 3) == 0)
-#define PTR_ALIGNED_8(a) ((PTR_LINEAR(a) & 7) == 0)
-#define PTR_ALIGNED2_4(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 3) == 0)
-#define PTR_ALIGNED2_8(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 7) == 0)
-
-#define PTR_LT(a,b) (PTR(a) < PTR(b))
-#define PTR_GE(a,b) (PTR(a) >= PTR(b))
-#define PTR_DIFF(a,b) ((lzo_ptrdiff_t) (PTR(a) - PTR(b)))
-#define pd(a,b) ((lzo_uint) ((a)-(b)))
-
-typedef union {
- char a_char;
- unsigned char a_uchar;
- short a_short;
- unsigned short a_ushort;
- int a_int;
- unsigned int a_uint;
- long a_long;
- unsigned long a_ulong;
- lzo_int a_lzo_int;
- lzo_uint a_lzo_uint;
- lzo_int32 a_lzo_int32;
- lzo_uint32 a_lzo_uint32;
- ptrdiff_t a_ptrdiff_t;
- lzo_ptrdiff_t a_lzo_ptrdiff_t;
- lzo_ptr_t a_lzo_ptr_t;
- lzo_voidp a_lzo_voidp;
- void *a_void_p;
- lzo_bytep a_lzo_bytep;
- lzo_bytepp a_lzo_bytepp;
- lzo_uintp a_lzo_uintp;
- lzo_uint *a_lzo_uint_p;
- lzo_uint32p a_lzo_uint32p;
- lzo_uint32 *a_lzo_uint32_p;
- unsigned char *a_uchar_p;
- char *a_char_p;
-} lzo_full_align_t;
-
-#endif
-#define LZO_DETERMINISTIC
-#define LZO_DICT_USE_PTR
-# define lzo_dict_t const lzo_bytep
-# define lzo_dict_p lzo_dict_t __LZO_MMODEL *
-#if !defined(lzo_moff_t)
-#define lzo_moff_t lzo_uint
-#endif
-#endif
-static lzo_ptr_t __lzo_ptr_linear(const lzo_voidp ptr)
-{
- return PTR_LINEAR(ptr);
-}
-
-static unsigned __lzo_align_gap(const lzo_voidp ptr, lzo_uint size)
-{
- lzo_ptr_t p, s, n;
-
- assert("lzo-01", size > 0);
-
- p = __lzo_ptr_linear(ptr);
- s = (lzo_ptr_t) (size - 1);
- n = (((p + s) / size) * size) - p;
-
- assert("lzo-02", (long)n >= 0);
- assert("lzo-03", n <= s);
-
- return (unsigned)n;
-}
-
-#ifndef __LZO_UTIL_H
-#define __LZO_UTIL_H
-
-#ifndef __LZO_CONF_H
-#endif
-
-#if 1 && defined(HAVE_MEMCPY)
-#define MEMCPY8_DS(dest,src,len) \
- memcpy(dest,src,len); \
- dest += len; \
- src += len
-#endif
-
-#if !defined(MEMCPY8_DS)
-
-#define MEMCPY8_DS(dest,src,len) \
- { register lzo_uint __l = (len) / 8; \
- do { \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- *dest++ = *src++; \
- } while (--__l > 0); }
-
-#endif
-
-#define MEMCPY_DS(dest,src,len) \
- do *dest++ = *src++; \
- while (--len > 0)
-
-#define MEMMOVE_DS(dest,src,len) \
- do *dest++ = *src++; \
- while (--len > 0)
-
-#if (LZO_UINT_MAX <= SIZE_T_MAX) && defined(HAVE_MEMSET)
-
-#define BZERO8_PTR(s,l,n) memset((s),0,(lzo_uint)(l)*(n))
-
-#else
-
-#define BZERO8_PTR(s,l,n) \
- lzo_memset((lzo_voidp)(s),0,(lzo_uint)(l)*(n))
-
-#endif
-#endif
-
-/* If you use the LZO library in a product, you *must* keep this
- * copyright string in the executable of your product.
- */
-
-static const lzo_byte __lzo_copyright[] =
-#if !defined(__LZO_IN_MINLZO)
- LZO_VERSION_STRING;
-#else
- "\n\n\n"
- "LZO real-time data compression library.\n"
- "Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 Markus Franz Xaver Johannes Oberhumer\n"
- "<markus.oberhumer@...uni-linz.ac.at>\n"
- "http://www.oberhumer.com/opensource/lzo/\n"
- "\n"
- "LZO version: v" LZO_VERSION_STRING ", " LZO_VERSION_DATE "\n"
- "LZO build date: " __DATE__ " " __TIME__ "\n\n"
- "LZO special compilation options:\n"
-#ifdef __cplusplus
- " __cplusplus\n"
-#endif
-#if defined(__PIC__)
- " __PIC__\n"
-#elif defined(__pic__)
- " __pic__\n"
-#endif
-#if (UINT_MAX < LZO_0xffffffffL)
- " 16BIT\n"
-#endif
-#if defined(__LZO_STRICT_16BIT)
- " __LZO_STRICT_16BIT\n"
-#endif
-#if (UINT_MAX > LZO_0xffffffffL)
- " UINT_MAX=" _LZO_MEXPAND(UINT_MAX) "\n"
-#endif
-#if (ULONG_MAX > LZO_0xffffffffL)
- " ULONG_MAX=" _LZO_MEXPAND(ULONG_MAX) "\n"
-#endif
-#if defined(LZO_BYTE_ORDER)
- " LZO_BYTE_ORDER=" _LZO_MEXPAND(LZO_BYTE_ORDER) "\n"
-#endif
-#if defined(LZO_UNALIGNED_OK_2)
- " LZO_UNALIGNED_OK_2\n"
-#endif
-#if defined(LZO_UNALIGNED_OK_4)
- " LZO_UNALIGNED_OK_4\n"
-#endif
-#if defined(LZO_ALIGNED_OK_4)
- " LZO_ALIGNED_OK_4\n"
-#endif
-#if defined(LZO_DICT_USE_PTR)
- " LZO_DICT_USE_PTR\n"
-#endif
-#if defined(__LZO_QUERY_COMPRESS)
- " __LZO_QUERY_COMPRESS\n"
-#endif
-#if defined(__LZO_QUERY_DECOMPRESS)
- " __LZO_QUERY_DECOMPRESS\n"
-#endif
-#if defined(__LZO_IN_MINILZO)
- " __LZO_IN_MINILZO\n"
-#endif
- "\n\n" "$Id: LZO " LZO_VERSION_STRING " built " __DATE__ " " __TIME__
-#if defined(__GNUC__) && defined(__VERSION__)
- " by gcc " __VERSION__
-#elif defined(__BORLANDC__)
- " by Borland C " _LZO_MEXPAND(__BORLANDC__)
-#elif defined(_MSC_VER)
- " by Microsoft C " _LZO_MEXPAND(_MSC_VER)
-#elif defined(__PUREC__)
- " by Pure C " _LZO_MEXPAND(__PUREC__)
-#elif defined(__SC__)
- " by Symantec C " _LZO_MEXPAND(__SC__)
-#elif defined(__TURBOC__)
- " by Turbo C " _LZO_MEXPAND(__TURBOC__)
-#elif defined(__WATCOMC__)
- " by Watcom C " _LZO_MEXPAND(__WATCOMC__)
-#endif
- " $\n"
- "$Copyright: LZO (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 Markus Franz Xaver Johannes Oberhumer $\n";
-#endif
-
-#define LZO_BASE 65521u
-#define LZO_NMAX 5552
-
-#define LZO_DO1(buf,i) {s1 += buf[i]; s2 += s1;}
-#define LZO_DO2(buf,i) LZO_DO1(buf,i); LZO_DO1(buf,i+1);
-#define LZO_DO4(buf,i) LZO_DO2(buf,i); LZO_DO2(buf,i+2);
-#define LZO_DO8(buf,i) LZO_DO4(buf,i); LZO_DO4(buf,i+4);
-#define LZO_DO16(buf,i) LZO_DO8(buf,i); LZO_DO8(buf,i+8);
-
-# define IS_SIGNED(type) (((type) (-1)) < ((type) 0))
-# define IS_UNSIGNED(type) (((type) (-1)) > ((type) 0))
-
-#define IS_POWER_OF_2(x) (((x) & ((x) - 1)) == 0)
-
-static lzo_bool schedule_insns_bug(void);
-static lzo_bool strength_reduce_bug(int *);
-
-# define __lzo_assert(x) ((x) ? 1 : 0)
-
-#undef COMPILE_TIME_ASSERT
-
-# define COMPILE_TIME_ASSERT(expr) LZO_COMPILE_TIME_ASSERT(expr)
-
-static lzo_bool basic_integral_check(void)
-{
- lzo_bool r = 1;
-
- COMPILE_TIME_ASSERT(CHAR_BIT == 8);
- COMPILE_TIME_ASSERT(sizeof(char) == 1);
- COMPILE_TIME_ASSERT(sizeof(short) >= 2);
- COMPILE_TIME_ASSERT(sizeof(long) >= 4);
- COMPILE_TIME_ASSERT(sizeof(int) >= sizeof(short));
- COMPILE_TIME_ASSERT(sizeof(long) >= sizeof(int));
-
- COMPILE_TIME_ASSERT(sizeof(lzo_uint) == sizeof(lzo_int));
- COMPILE_TIME_ASSERT(sizeof(lzo_uint32) == sizeof(lzo_int32));
-
- COMPILE_TIME_ASSERT(sizeof(lzo_uint32) >= 4);
- COMPILE_TIME_ASSERT(sizeof(lzo_uint32) >= sizeof(unsigned));
-#if defined(__LZO_STRICT_16BIT)
- COMPILE_TIME_ASSERT(sizeof(lzo_uint) == 2);
-#else
- COMPILE_TIME_ASSERT(sizeof(lzo_uint) >= 4);
- COMPILE_TIME_ASSERT(sizeof(lzo_uint) >= sizeof(unsigned));
-#endif
-
-#if (USHRT_MAX == 65535u)
- COMPILE_TIME_ASSERT(sizeof(short) == 2);
-#elif (USHRT_MAX == LZO_0xffffffffL)
- COMPILE_TIME_ASSERT(sizeof(short) == 4);
-#elif (USHRT_MAX >= LZO_0xffffffffL)
- COMPILE_TIME_ASSERT(sizeof(short) > 4);
-#endif
- COMPILE_TIME_ASSERT(IS_UNSIGNED(unsigned char));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(unsigned short));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(unsigned));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(unsigned long));
- COMPILE_TIME_ASSERT(IS_SIGNED(short));
- COMPILE_TIME_ASSERT(IS_SIGNED(int));
- COMPILE_TIME_ASSERT(IS_SIGNED(long));
-
- COMPILE_TIME_ASSERT(IS_UNSIGNED(lzo_uint32));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(lzo_uint));
- COMPILE_TIME_ASSERT(IS_SIGNED(lzo_int32));
- COMPILE_TIME_ASSERT(IS_SIGNED(lzo_int));
-
- COMPILE_TIME_ASSERT(INT_MAX == LZO_STYPE_MAX(sizeof(int)));
- COMPILE_TIME_ASSERT(UINT_MAX == LZO_UTYPE_MAX(sizeof(unsigned)));
- COMPILE_TIME_ASSERT(LONG_MAX == LZO_STYPE_MAX(sizeof(long)));
- COMPILE_TIME_ASSERT(ULONG_MAX == LZO_UTYPE_MAX(sizeof(unsigned long)));
- COMPILE_TIME_ASSERT(USHRT_MAX == LZO_UTYPE_MAX(sizeof(unsigned short)));
- COMPILE_TIME_ASSERT(LZO_UINT32_MAX ==
- LZO_UTYPE_MAX(sizeof(lzo_uint32)));
- COMPILE_TIME_ASSERT(LZO_UINT_MAX == LZO_UTYPE_MAX(sizeof(lzo_uint)));
-
- r &= __lzo_assert(LZO_BYTE(257) == 1);
-
- return r;
-}
-
-static lzo_bool basic_ptr_check(void)
-{
- lzo_bool r = 1;
-
- COMPILE_TIME_ASSERT(sizeof(char *) >= sizeof(int));
- COMPILE_TIME_ASSERT(sizeof(lzo_byte *) >= sizeof(char *));
-
- COMPILE_TIME_ASSERT(sizeof(lzo_voidp) == sizeof(lzo_byte *));
- COMPILE_TIME_ASSERT(sizeof(lzo_voidp) == sizeof(lzo_voidpp));
- COMPILE_TIME_ASSERT(sizeof(lzo_voidp) == sizeof(lzo_bytepp));
- COMPILE_TIME_ASSERT(sizeof(lzo_voidp) >= sizeof(lzo_uint));
-
- COMPILE_TIME_ASSERT(sizeof(lzo_ptr_t) == sizeof(lzo_voidp));
- COMPILE_TIME_ASSERT(sizeof(lzo_ptr_t) == sizeof(lzo_sptr_t));
- COMPILE_TIME_ASSERT(sizeof(lzo_ptr_t) >= sizeof(lzo_uint));
-
- COMPILE_TIME_ASSERT(sizeof(lzo_ptrdiff_t) >= 4);
- COMPILE_TIME_ASSERT(sizeof(lzo_ptrdiff_t) >= sizeof(ptrdiff_t));
-
- COMPILE_TIME_ASSERT(sizeof(ptrdiff_t) >= sizeof(size_t));
- COMPILE_TIME_ASSERT(sizeof(lzo_ptrdiff_t) >= sizeof(lzo_uint));
-
-#if defined(SIZEOF_CHAR_P)
- COMPILE_TIME_ASSERT(SIZEOF_CHAR_P == sizeof(char *));
-#endif
-#if defined(SIZEOF_PTRDIFF_T)
- COMPILE_TIME_ASSERT(SIZEOF_PTRDIFF_T == sizeof(ptrdiff_t));
-#endif
-
- COMPILE_TIME_ASSERT(IS_SIGNED(ptrdiff_t));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(size_t));
- COMPILE_TIME_ASSERT(IS_SIGNED(lzo_ptrdiff_t));
- COMPILE_TIME_ASSERT(IS_SIGNED(lzo_sptr_t));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(lzo_ptr_t));
- COMPILE_TIME_ASSERT(IS_UNSIGNED(lzo_moff_t));
-
- return r;
-}
-
-static lzo_bool ptr_check(void)
-{
- lzo_bool r = 1;
- int i;
- char _wrkmem[10 * sizeof(lzo_byte *) + sizeof(lzo_full_align_t)];
- lzo_bytep wrkmem;
- lzo_bytepp dict;
- unsigned char x[4 * sizeof(lzo_full_align_t)];
- long d;
- lzo_full_align_t a;
- lzo_full_align_t u;
-
- for (i = 0; i < (int)sizeof(x); i++)
- x[i] = LZO_BYTE(i);
-
- wrkmem =
- LZO_PTR_ALIGN_UP((lzo_byte *) _wrkmem, sizeof(lzo_full_align_t));
-
- u.a_lzo_bytep = wrkmem;
- dict = u.a_lzo_bytepp;
-
- d = (long)((const lzo_bytep)dict - (const lzo_bytep)_wrkmem);
- r &= __lzo_assert(d >= 0);
- r &= __lzo_assert(d < (long)sizeof(lzo_full_align_t));
-
- memset(&a, 0, sizeof(a));
- r &= __lzo_assert(a.a_lzo_voidp == NULL);
-
- memset(&a, 0xff, sizeof(a));
- r &= __lzo_assert(a.a_ushort == USHRT_MAX);
- r &= __lzo_assert(a.a_uint == UINT_MAX);
- r &= __lzo_assert(a.a_ulong == ULONG_MAX);
- r &= __lzo_assert(a.a_lzo_uint == LZO_UINT_MAX);
- r &= __lzo_assert(a.a_lzo_uint32 == LZO_UINT32_MAX);
-
- if (r == 1) {
- for (i = 0; i < 8; i++)
- r &= __lzo_assert((const lzo_voidp)(&dict[i]) ==
- (const
- lzo_voidp)(&wrkmem[i *
- sizeof(lzo_byte
- *)]));
- }
-
- memset(&a, 0, sizeof(a));
- r &= __lzo_assert(a.a_char_p == NULL);
- r &= __lzo_assert(a.a_lzo_bytep == NULL);
- r &= __lzo_assert(NULL == (void *)0);
- if (r == 1) {
- for (i = 0; i < 10; i++)
- dict[i] = wrkmem;
- BZERO8_PTR(dict + 1, sizeof(dict[0]), 8);
- r &= __lzo_assert(dict[0] == wrkmem);
- for (i = 1; i < 9; i++)
- r &= __lzo_assert(dict[i] == NULL);
- r &= __lzo_assert(dict[9] == wrkmem);
- }
-
- if (r == 1) {
- unsigned k = 1;
- const unsigned n = (unsigned)sizeof(lzo_uint32);
- lzo_byte *p0;
- lzo_byte *p1;
-
- k += __lzo_align_gap(&x[k], n);
- p0 = (lzo_bytep) & x[k];
-#if defined(PTR_LINEAR)
- r &= __lzo_assert((PTR_LINEAR(p0) & (n - 1)) == 0);
-#else
- r &= __lzo_assert(n == 4);
- r &= __lzo_assert(PTR_ALIGNED_4(p0));
-#endif
-
- r &= __lzo_assert(k >= 1);
- p1 = (lzo_bytep) & x[1];
- r &= __lzo_assert(PTR_GE(p0, p1));
-
- r &= __lzo_assert(k < 1 + n);
- p1 = (lzo_bytep) & x[1 + n];
- r &= __lzo_assert(PTR_LT(p0, p1));
-
- if (r == 1) {
- lzo_uint32 v0, v1;
-
- u.a_uchar_p = &x[k];
- v0 = *u.a_lzo_uint32_p;
- u.a_uchar_p = &x[k + n];
- v1 = *u.a_lzo_uint32_p;
-
- r &= __lzo_assert(v0 > 0);
- r &= __lzo_assert(v1 > 0);
- }
- }
-
- return r;
-}
-
-static int _lzo_config_check(void)
-{
- lzo_bool r = 1;
- int i;
- union {
- lzo_uint32 a;
- unsigned short b;
- lzo_uint32 aa[4];
- unsigned char x[4 * sizeof(lzo_full_align_t)];
- } u;
-
- COMPILE_TIME_ASSERT((int)((unsigned char)((signed char)-1)) == 255);
- COMPILE_TIME_ASSERT((((unsigned char)128) << (int)(8 * sizeof(int) - 8))
- < 0);
-
- r &= basic_integral_check();
- r &= basic_ptr_check();
- if (r != 1)
- return LZO_E_ERROR;
-
- u.a = 0;
- u.b = 0;
- for (i = 0; i < (int)sizeof(u.x); i++)
- u.x[i] = LZO_BYTE(i);
-
-#if defined(LZO_BYTE_ORDER)
- if (r == 1) {
-# if (LZO_BYTE_ORDER == LZO_LITTLE_ENDIAN)
- lzo_uint32 a = (lzo_uint32) (u.a & LZO_0xffffffffL);
- unsigned short b = (unsigned short)(u.b & 0xffff);
- r &= __lzo_assert(a == 0x03020100L);
- r &= __lzo_assert(b == 0x0100);
-# elif (LZO_BYTE_ORDER == LZO_BIG_ENDIAN)
- lzo_uint32 a = u.a >> (8 * sizeof(u.a) - 32);
- unsigned short b = u.b >> (8 * sizeof(u.b) - 16);
- r &= __lzo_assert(a == 0x00010203L);
- r &= __lzo_assert(b == 0x0001);
-# else
-# error "invalid LZO_BYTE_ORDER"
-# endif
- }
-#endif
-
-#if defined(LZO_UNALIGNED_OK_2)
- COMPILE_TIME_ASSERT(sizeof(short) == 2);
- if (r == 1) {
- unsigned short b[4];
-
- for (i = 0; i < 4; i++)
- b[i] = *(const unsigned short *)&u.x[i];
-
-# if (LZO_BYTE_ORDER == LZO_LITTLE_ENDIAN)
- r &= __lzo_assert(b[0] == 0x0100);
- r &= __lzo_assert(b[1] == 0x0201);
- r &= __lzo_assert(b[2] == 0x0302);
- r &= __lzo_assert(b[3] == 0x0403);
-# elif (LZO_BYTE_ORDER == LZO_BIG_ENDIAN)
- r &= __lzo_assert(b[0] == 0x0001);
- r &= __lzo_assert(b[1] == 0x0102);
- r &= __lzo_assert(b[2] == 0x0203);
- r &= __lzo_assert(b[3] == 0x0304);
-# endif
- }
-#endif
-
-#if defined(LZO_UNALIGNED_OK_4)
- COMPILE_TIME_ASSERT(sizeof(lzo_uint32) == 4);
- if (r == 1) {
- lzo_uint32 a[4];
-
- for (i = 0; i < 4; i++)
- a[i] = *(const lzo_uint32 *)&u.x[i];
-
-# if (LZO_BYTE_ORDER == LZO_LITTLE_ENDIAN)
- r &= __lzo_assert(a[0] == 0x03020100L);
- r &= __lzo_assert(a[1] == 0x04030201L);
- r &= __lzo_assert(a[2] == 0x05040302L);
- r &= __lzo_assert(a[3] == 0x06050403L);
-# elif (LZO_BYTE_ORDER == LZO_BIG_ENDIAN)
- r &= __lzo_assert(a[0] == 0x00010203L);
- r &= __lzo_assert(a[1] == 0x01020304L);
- r &= __lzo_assert(a[2] == 0x02030405L);
- r &= __lzo_assert(a[3] == 0x03040506L);
-# endif
- }
-#endif
-
-#if defined(LZO_ALIGNED_OK_4)
- COMPILE_TIME_ASSERT(sizeof(lzo_uint32) == 4);
-#endif
-
- COMPILE_TIME_ASSERT(lzo_sizeof_dict_t == sizeof(lzo_dict_t));
-
- if (r == 1) {
- r &= __lzo_assert(!schedule_insns_bug());
- }
-
- if (r == 1) {
- static int x[3];
- static unsigned xn = 3;
- register unsigned j;
-
- for (j = 0; j < xn; j++)
- x[j] = (int)j - 3;
- r &= __lzo_assert(!strength_reduce_bug(x));
- }
-
- if (r == 1) {
- r &= ptr_check();
- }
-
- return r == 1 ? LZO_E_OK : LZO_E_ERROR;
-}
-
-static lzo_bool schedule_insns_bug(void)
-{
-#if defined(__LZO_CHECKER)
- return 0;
-#else
- const int clone[] = { 1, 2, 0 };
- const int *q;
- q = clone;
- return (*q) ? 0 : 1;
-#endif
-}
-
-static lzo_bool strength_reduce_bug(int *x)
-{
- return x[0] != -3 || x[1] != -2 || x[2] != -1;
-}
-
-#undef COMPILE_TIME_ASSERT
-
-int __lzo_init2(unsigned v, int s1, int s2, int s3, int s4, int s5,
- int s6, int s7, int s8, int s9)
-{
- int r;
-
- if (v == 0)
- return LZO_E_ERROR;
-
- r = (s1 == -1 || s1 == (int)sizeof(short)) &&
- (s2 == -1 || s2 == (int)sizeof(int)) &&
- (s3 == -1 || s3 == (int)sizeof(long)) &&
- (s4 == -1 || s4 == (int)sizeof(lzo_uint32)) &&
- (s5 == -1 || s5 == (int)sizeof(lzo_uint)) &&
- (s6 == -1 || s6 == (int)lzo_sizeof_dict_t) &&
- (s7 == -1 || s7 == (int)sizeof(char *)) &&
- (s8 == -1 || s8 == (int)sizeof(lzo_voidp)) &&
- (s9 == -1 || s9 == (int)sizeof(lzo_compress_t));
- if (!r)
- return LZO_E_ERROR;
-
- r = _lzo_config_check();
- if (r != LZO_E_OK)
- return r;
-
- return r;
-}
-
-#define do_compress _lzo1x_1_do_compress
-
-#define LZO_NEED_DICT_H
-#define D_BITS 14
-#define D_INDEX1(d,p) d = DM((0x21*DX3(p,5,5,6)) >> 5)
-#define D_INDEX2(d,p) d = (d & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f)
-
-#ifndef __LZO_CONFIG1X_H
-#define __LZO_CONFIG1X_H
-
-#if !defined(LZO1X) && !defined(LZO1Y) && !defined(LZO1Z)
-# define LZO1X
-#endif
-
-#define LZO_EOF_CODE
-#undef LZO_DETERMINISTIC
-
-#define M1_MAX_OFFSET 0x0400
-#ifndef M2_MAX_OFFSET
-#define M2_MAX_OFFSET 0x0800
-#endif
-#define M3_MAX_OFFSET 0x4000
-#define M4_MAX_OFFSET 0xbfff
-
-#define MX_MAX_OFFSET (M1_MAX_OFFSET + M2_MAX_OFFSET)
-
-#define M1_MIN_LEN 2
-#define M1_MAX_LEN 2
-#define M2_MIN_LEN 3
-#ifndef M2_MAX_LEN
-#define M2_MAX_LEN 8
-#endif
-#define M3_MIN_LEN 3
-#define M3_MAX_LEN 33
-#define M4_MIN_LEN 3
-#define M4_MAX_LEN 9
-
-#define M1_MARKER 0
-#define M2_MARKER 64
-#define M3_MARKER 32
-#define M4_MARKER 16
-
-#ifndef MIN_LOOKAHEAD
-#define MIN_LOOKAHEAD (M2_MAX_LEN + 1)
-#endif
-
-#if defined(LZO_NEED_DICT_H)
-
-#ifndef LZO_HASH
-#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_B
-#endif
-#define DL_MIN_LEN M2_MIN_LEN
-
-#ifndef __LZO_DICT_H
-#define __LZO_DICT_H
-
-#if !defined(D_BITS) && defined(DBITS)
-# define D_BITS DBITS
-#endif
-#if !defined(D_BITS)
-# error "D_BITS is not defined"
-#endif
-#if (D_BITS < 16)
-# define D_SIZE LZO_SIZE(D_BITS)
-# define D_MASK LZO_MASK(D_BITS)
-#else
-# define D_SIZE LZO_USIZE(D_BITS)
-# define D_MASK LZO_UMASK(D_BITS)
-#endif
-#define D_HIGH ((D_MASK >> 1) + 1)
-
-#if !defined(DD_BITS)
-# define DD_BITS 0
-#endif
-#define DD_SIZE LZO_SIZE(DD_BITS)
-#define DD_MASK LZO_MASK(DD_BITS)
-
-#if !defined(DL_BITS)
-# define DL_BITS (D_BITS - DD_BITS)
-#endif
-#if (DL_BITS < 16)
-# define DL_SIZE LZO_SIZE(DL_BITS)
-# define DL_MASK LZO_MASK(DL_BITS)
-#else
-# define DL_SIZE LZO_USIZE(DL_BITS)
-# define DL_MASK LZO_UMASK(DL_BITS)
-#endif
-
-#if (D_BITS != DL_BITS + DD_BITS)
-# error "D_BITS does not match"
-#endif
-#if (D_BITS < 8 || D_BITS > 18)
-# error "invalid D_BITS"
-#endif
-#if (DL_BITS < 8 || DL_BITS > 20)
-# error "invalid DL_BITS"
-#endif
-#if (DD_BITS < 0 || DD_BITS > 6)
-# error "invalid DD_BITS"
-#endif
-
-#if !defined(DL_MIN_LEN)
-# define DL_MIN_LEN 3
-#endif
-#if !defined(DL_SHIFT)
-# define DL_SHIFT ((DL_BITS + (DL_MIN_LEN - 1)) / DL_MIN_LEN)
-#endif
-
-#define LZO_HASH_GZIP 1
-#define LZO_HASH_GZIP_INCREMENTAL 2
-#define LZO_HASH_LZO_INCREMENTAL_A 3
-#define LZO_HASH_LZO_INCREMENTAL_B 4
-
-#if !defined(LZO_HASH)
-# error "choose a hashing strategy"
-#endif
-
-#if (DL_MIN_LEN == 3)
-# define _DV2_A(p,shift1,shift2) \
- (((( (lzo_uint32)((p)[0]) << shift1) ^ (p)[1]) << shift2) ^ (p)[2])
-# define _DV2_B(p,shift1,shift2) \
- (((( (lzo_uint32)((p)[2]) << shift1) ^ (p)[1]) << shift2) ^ (p)[0])
-# define _DV3_B(p,shift1,shift2,shift3) \
- ((_DV2_B((p)+1,shift1,shift2) << (shift3)) ^ (p)[0])
-#elif (DL_MIN_LEN == 2)
-# define _DV2_A(p,shift1,shift2) \
- (( (lzo_uint32)(p[0]) << shift1) ^ p[1])
-# define _DV2_B(p,shift1,shift2) \
- (( (lzo_uint32)(p[1]) << shift1) ^ p[2])
-#else
-# error "invalid DL_MIN_LEN"
-#endif
-#define _DV_A(p,shift) _DV2_A(p,shift,shift)
-#define _DV_B(p,shift) _DV2_B(p,shift,shift)
-#define DA2(p,s1,s2) \
- (((((lzo_uint32)((p)[2]) << (s2)) + (p)[1]) << (s1)) + (p)[0])
-#define DS2(p,s1,s2) \
- (((((lzo_uint32)((p)[2]) << (s2)) - (p)[1]) << (s1)) - (p)[0])
-#define DX2(p,s1,s2) \
- (((((lzo_uint32)((p)[2]) << (s2)) ^ (p)[1]) << (s1)) ^ (p)[0])
-#define DA3(p,s1,s2,s3) ((DA2((p)+1,s2,s3) << (s1)) + (p)[0])
-#define DS3(p,s1,s2,s3) ((DS2((p)+1,s2,s3) << (s1)) - (p)[0])
-#define DX3(p,s1,s2,s3) ((DX2((p)+1,s2,s3) << (s1)) ^ (p)[0])
-#define DMS(v,s) ((lzo_uint) (((v) & (D_MASK >> (s))) << (s)))
-#define DM(v) DMS(v,0)
-
-#if (LZO_HASH == LZO_HASH_GZIP)
-# define _DINDEX(dv,p) (_DV_A((p),DL_SHIFT))
-
-#elif (LZO_HASH == LZO_HASH_GZIP_INCREMENTAL)
-# define __LZO_HASH_INCREMENTAL
-# define DVAL_FIRST(dv,p) dv = _DV_A((p),DL_SHIFT)
-# define DVAL_NEXT(dv,p) dv = (((dv) << DL_SHIFT) ^ p[2])
-# define _DINDEX(dv,p) (dv)
-# define DVAL_LOOKAHEAD DL_MIN_LEN
-
-#elif (LZO_HASH == LZO_HASH_LZO_INCREMENTAL_A)
-# define __LZO_HASH_INCREMENTAL
-# define DVAL_FIRST(dv,p) dv = _DV_A((p),5)
-# define DVAL_NEXT(dv,p) \
- dv ^= (lzo_uint32)(p[-1]) << (2*5); dv = (((dv) << 5) ^ p[2])
-# define _DINDEX(dv,p) ((0x9f5f * (dv)) >> 5)
-# define DVAL_LOOKAHEAD DL_MIN_LEN
-
-#elif (LZO_HASH == LZO_HASH_LZO_INCREMENTAL_B)
-# define __LZO_HASH_INCREMENTAL
-# define DVAL_FIRST(dv,p) dv = _DV_B((p),5)
-# define DVAL_NEXT(dv,p) \
- dv ^= p[-1]; dv = (((dv) >> 5) ^ ((lzo_uint32)(p[2]) << (2*5)))
-# define _DINDEX(dv,p) ((0x9f5f * (dv)) >> 5)
-# define DVAL_LOOKAHEAD DL_MIN_LEN
-
-#else
-# error "choose a hashing strategy"
-#endif
-
-#ifndef DINDEX
-#define DINDEX(dv,p) ((lzo_uint)((_DINDEX(dv,p)) & DL_MASK) << DD_BITS)
-#endif
-#if !defined(DINDEX1) && defined(D_INDEX1)
-#define DINDEX1 D_INDEX1
-#endif
-#if !defined(DINDEX2) && defined(D_INDEX2)
-#define DINDEX2 D_INDEX2
-#endif
-
-#if !defined(__LZO_HASH_INCREMENTAL)
-# define DVAL_FIRST(dv,p) ((void) 0)
-# define DVAL_NEXT(dv,p) ((void) 0)
-# define DVAL_LOOKAHEAD 0
-#endif
-
-#if !defined(DVAL_ASSERT)
-#if defined(__LZO_HASH_INCREMENTAL) && !defined(NDEBUG)
-static void DVAL_ASSERT(lzo_uint32 dv, const lzo_byte * p)
-{
- lzo_uint32 df;
- DVAL_FIRST(df, (p));
- assert(DINDEX(dv, p) == DINDEX(df, p));
-}
-#else
-# define DVAL_ASSERT(dv,p) ((void) 0)
-#endif
-#endif
-
-# define DENTRY(p,in) (p)
-# define GINDEX(m_pos,m_off,dict,dindex,in) m_pos = dict[dindex]
-
-#if (DD_BITS == 0)
-
-# define UPDATE_D(dict,drun,dv,p,in) dict[ DINDEX(dv,p) ] = DENTRY(p,in)
-# define UPDATE_I(dict,drun,index,p,in) dict[index] = DENTRY(p,in)
-# define UPDATE_P(ptr,drun,p,in) (ptr)[0] = DENTRY(p,in)
-
-#else
-
-# define UPDATE_D(dict,drun,dv,p,in) \
- dict[ DINDEX(dv,p) + drun++ ] = DENTRY(p,in); drun &= DD_MASK
-# define UPDATE_I(dict,drun,index,p,in) \
- dict[ (index) + drun++ ] = DENTRY(p,in); drun &= DD_MASK
-# define UPDATE_P(ptr,drun,p,in) \
- (ptr) [ drun++ ] = DENTRY(p,in); drun &= DD_MASK
-
-#endif
-
-#define LZO_CHECK_MPOS_DET(m_pos,m_off,in,ip,max_offset) \
- (m_pos == NULL || (m_off = (lzo_moff_t) (ip - m_pos)) > max_offset)
-
-#define LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,max_offset) \
- (BOUNDS_CHECKING_OFF_IN_EXPR( \
- (PTR_LT(m_pos,in) || \
- (m_off = (lzo_moff_t) PTR_DIFF(ip,m_pos)) <= 0 || \
- m_off > max_offset) ))
-
-#if defined(LZO_DETERMINISTIC)
-# define LZO_CHECK_MPOS LZO_CHECK_MPOS_DET
-#else
-# define LZO_CHECK_MPOS LZO_CHECK_MPOS_NON_DET
-#endif
-#endif
-#endif
-#endif
-#define DO_COMPRESS lzo1x_1_compress
-static
-lzo_uint do_compress(const lzo_byte * in, lzo_uint in_len,
- lzo_byte * out, lzo_uintp out_len, lzo_voidp wrkmem)
-{
- register const lzo_byte *ip;
- lzo_byte *op;
- const lzo_byte *const in_end = in + in_len;
- const lzo_byte *const ip_end = in + in_len - M2_MAX_LEN - 5;
- const lzo_byte *ii;
- lzo_dict_p const dict = (lzo_dict_p) wrkmem;
-
- op = out;
- ip = in;
- ii = ip;
-
- ip += 4;
- for (;;) {
- register const lzo_byte *m_pos;
-
- lzo_moff_t m_off;
- lzo_uint m_len;
- lzo_uint dindex;
-
- DINDEX1(dindex, ip);
- GINDEX(m_pos, m_off, dict, dindex, in);
- if (LZO_CHECK_MPOS_NON_DET(m_pos, m_off, in, ip, M4_MAX_OFFSET))
- goto literal;
-#if 1
- if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
- goto try_match;
- DINDEX2(dindex, ip);
-#endif
- GINDEX(m_pos, m_off, dict, dindex, in);
- if (LZO_CHECK_MPOS_NON_DET(m_pos, m_off, in, ip, M4_MAX_OFFSET))
- goto literal;
- if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
- goto try_match;
- goto literal;
-
- try_match:
-#if 1 && defined(LZO_UNALIGNED_OK_2)
- if (*(const lzo_ushortp)m_pos != *(const lzo_ushortp)ip) {
-#else
- if (m_pos[0] != ip[0] || m_pos[1] != ip[1]) {
-#endif
- ;
- } else {
- if (m_pos[2] == ip[2]) {
- goto match;
- } else {
- ;
- }
- }
-
- literal:
- UPDATE_I(dict, 0, dindex, ip, in);
- ++ip;
- if (ip >= ip_end)
- break;
- continue;
-
- match:
- UPDATE_I(dict, 0, dindex, ip, in);
- if (pd(ip, ii) > 0) {
- register lzo_uint t = pd(ip, ii);
-
- if (t <= 3) {
- assert("lzo-04", op - 2 > out);
- op[-2] |= LZO_BYTE(t);
- } else if (t <= 18)
- *op++ = LZO_BYTE(t - 3);
- else {
- register lzo_uint tt = t - 18;
-
- *op++ = 0;
- while (tt > 255) {
- tt -= 255;
- *op++ = 0;
- }
- assert("lzo-05", tt > 0);
- *op++ = LZO_BYTE(tt);
- }
- do
- *op++ = *ii++;
- while (--t > 0);
- }
-
- assert("lzo-06", ii == ip);
- ip += 3;
- if (m_pos[3] != *ip++ || m_pos[4] != *ip++ || m_pos[5] != *ip++
- || m_pos[6] != *ip++ || m_pos[7] != *ip++
- || m_pos[8] != *ip++
-#ifdef LZO1Y
- || m_pos[9] != *ip++ || m_pos[10] != *ip++
- || m_pos[11] != *ip++ || m_pos[12] != *ip++
- || m_pos[13] != *ip++ || m_pos[14] != *ip++
-#endif
- ) {
- --ip;
- m_len = ip - ii;
- assert("lzo-07", m_len >= 3);
- assert("lzo-08", m_len <= M2_MAX_LEN);
-
- if (m_off <= M2_MAX_OFFSET) {
- m_off -= 1;
-#if defined(LZO1X)
- *op++ =
- LZO_BYTE(((m_len -
- 1) << 5) | ((m_off & 7) << 2));
- *op++ = LZO_BYTE(m_off >> 3);
-#elif defined(LZO1Y)
- *op++ =
- LZO_BYTE(((m_len +
- 1) << 4) | ((m_off & 3) << 2));
- *op++ = LZO_BYTE(m_off >> 2);
-#endif
- } else if (m_off <= M3_MAX_OFFSET) {
- m_off -= 1;
- *op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
- goto m3_m4_offset;
- } else
-#if defined(LZO1X)
- {
- m_off -= 0x4000;
- assert("lzo-09", m_off > 0);
- assert("lzo-10", m_off <= 0x7fff);
- *op++ = LZO_BYTE(M4_MARKER |
- ((m_off & 0x4000) >> 11) |
- (m_len - 2));
- goto m3_m4_offset;
- }
-#elif defined(LZO1Y)
- goto m4_match;
-#endif
- } else {
- {
- const lzo_byte *end = in_end;
- const lzo_byte *m = m_pos + M2_MAX_LEN + 1;
- while (ip < end && *m == *ip)
- m++, ip++;
- m_len = (ip - ii);
- }
- assert("lzo-11", m_len > M2_MAX_LEN);
-
- if (m_off <= M3_MAX_OFFSET) {
- m_off -= 1;
- if (m_len <= 33)
- *op++ =
- LZO_BYTE(M3_MARKER | (m_len - 2));
- else {
- m_len -= 33;
- *op++ = M3_MARKER | 0;
- goto m3_m4_len;
- }
- } else {
-#if defined(LZO1Y)
- m4_match:
-#endif
- m_off -= 0x4000;
- assert("lzo-12", m_off > 0);
- assert("lzo-13", m_off <= 0x7fff);
- if (m_len <= M4_MAX_LEN)
- *op++ = LZO_BYTE(M4_MARKER |
- ((m_off & 0x4000) >>
- 11) | (m_len - 2));
- else {
- m_len -= M4_MAX_LEN;
- *op++ =
- LZO_BYTE(M4_MARKER |
- ((m_off & 0x4000) >> 11));
- m3_m4_len:
- while (m_len > 255) {
- m_len -= 255;
- *op++ = 0;
- }
- assert("lzo-14", m_len > 0);
- *op++ = LZO_BYTE(m_len);
- }
- }
-
- m3_m4_offset:
- *op++ = LZO_BYTE((m_off & 63) << 2);
- *op++ = LZO_BYTE(m_off >> 6);
- }
-
- ii = ip;
- if (ip >= ip_end)
- break;
- }
-
- *out_len = op - out;
- return pd(in_end, ii);
-}
-
-int DO_COMPRESS(const lzo_byte * in, lzo_uint in_len,
- lzo_byte * out, lzo_uintp out_len, lzo_voidp wrkmem)
-{
- lzo_byte *op = out;
- lzo_uint t;
-
-#if defined(__LZO_QUERY_COMPRESS)
- if (__LZO_IS_COMPRESS_QUERY(in, in_len, out, out_len, wrkmem))
- return __LZO_QUERY_COMPRESS(in, in_len, out, out_len, wrkmem,
- D_SIZE, lzo_sizeof(lzo_dict_t));
-#endif
-
- if (in_len <= M2_MAX_LEN + 5)
- t = in_len;
- else {
- t = do_compress(in, in_len, op, out_len, wrkmem);
- op += *out_len;
- }
-
- if (t > 0) {
- const lzo_byte *ii = in + in_len - t;
-
- if (op == out && t <= 238)
- *op++ = LZO_BYTE(17 + t);
- else if (t <= 3)
- op[-2] |= LZO_BYTE(t);
- else if (t <= 18)
- *op++ = LZO_BYTE(t - 3);
- else {
- lzo_uint tt = t - 18;
-
- *op++ = 0;
- while (tt > 255) {
- tt -= 255;
- *op++ = 0;
- }
- assert("lzo-15", tt > 0);
- *op++ = LZO_BYTE(tt);
- }
- do
- *op++ = *ii++;
- while (--t > 0);
- }
-
- *op++ = M4_MARKER | 1;
- *op++ = 0;
- *op++ = 0;
-
- *out_len = op - out;
- return LZO_E_OK;
-}
-
-#undef do_compress
-#undef DO_COMPRESS
-#undef LZO_HASH
-
-#undef LZO_TEST_DECOMPRESS_OVERRUN
-#undef LZO_TEST_DECOMPRESS_OVERRUN_INPUT
-#undef LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT
-#undef LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND
-#undef DO_DECOMPRESS
-#define DO_DECOMPRESS lzo1x_decompress
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN)
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_INPUT)
-# define LZO_TEST_DECOMPRESS_OVERRUN_INPUT 2
-# endif
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
-# define LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT 2
-# endif
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
-# define LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND
-# endif
-#endif
-
-#undef TEST_IP
-#undef TEST_OP
-#undef TEST_LOOKBEHIND
-#undef NEED_IP
-#undef NEED_OP
-#undef HAVE_TEST_IP
-#undef HAVE_TEST_OP
-#undef HAVE_NEED_IP
-#undef HAVE_NEED_OP
-#undef HAVE_ANY_IP
-#undef HAVE_ANY_OP
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_INPUT)
-# if (LZO_TEST_DECOMPRESS_OVERRUN_INPUT >= 1)
-# define TEST_IP (ip < ip_end)
-# endif
-# if (LZO_TEST_DECOMPRESS_OVERRUN_INPUT >= 2)
-# define NEED_IP(x) \
- if ((lzo_uint)(ip_end - ip) < (lzo_uint)(x)) goto input_overrun
-# endif
-#endif
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
-# if (LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT >= 1)
-# define TEST_OP (op <= op_end)
-# endif
-# if (LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT >= 2)
-# undef TEST_OP
-# define NEED_OP(x) \
- if ((lzo_uint)(op_end - op) < (lzo_uint)(x)) goto output_overrun
-# endif
-#endif
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
-# define TEST_LOOKBEHIND(m_pos,out) if (m_pos < out) goto lookbehind_overrun
-#else
-# define TEST_LOOKBEHIND(m_pos,op) ((void) 0)
-#endif
-
-#if !defined(LZO_EOF_CODE) && !defined(TEST_IP)
-# define TEST_IP (ip < ip_end)
-#endif
-
-#if defined(TEST_IP)
-# define HAVE_TEST_IP
-#else
-# define TEST_IP 1
-#endif
-#if defined(TEST_OP)
-# define HAVE_TEST_OP
-#else
-# define TEST_OP 1
-#endif
-
-#if defined(NEED_IP)
-# define HAVE_NEED_IP
-#else
-# define NEED_IP(x) ((void) 0)
-#endif
-#if defined(NEED_OP)
-# define HAVE_NEED_OP
-#else
-# define NEED_OP(x) ((void) 0)
-#endif
-
-#if defined(HAVE_TEST_IP) || defined(HAVE_NEED_IP)
-# define HAVE_ANY_IP
-#endif
-#if defined(HAVE_TEST_OP) || defined(HAVE_NEED_OP)
-# define HAVE_ANY_OP
-#endif
-
-#undef __COPY4
-#define __COPY4(dst,src) * (lzo_uint32p)(dst) = * (const lzo_uint32p)(src)
-
-#undef COPY4
-#if defined(LZO_UNALIGNED_OK_4)
-# define COPY4(dst,src) __COPY4(dst,src)
-#elif defined(LZO_ALIGNED_OK_4)
-# define COPY4(dst,src) __COPY4((lzo_ptr_t)(dst),(lzo_ptr_t)(src))
-#endif
-
-#if defined(DO_DECOMPRESS)
-int DO_DECOMPRESS(const lzo_byte * in, lzo_uint in_len,
- lzo_byte * out, lzo_uintp out_len, lzo_voidp wrkmem)
-#endif
-{
- register lzo_byte *op;
- register const lzo_byte *ip;
- register lzo_uint t;
-#if defined(COPY_DICT)
- lzo_uint m_off;
- const lzo_byte *dict_end;
-#else
- register const lzo_byte *m_pos;
-#endif
-
- const lzo_byte *const ip_end = in + in_len;
-#if defined(HAVE_ANY_OP)
- lzo_byte *const op_end = out + *out_len;
-#endif
-#if defined(LZO1Z)
- lzo_uint last_m_off = 0;
-#endif
-
- LZO_UNUSED(wrkmem);
-
-#if defined(__LZO_QUERY_DECOMPRESS)
- if (__LZO_IS_DECOMPRESS_QUERY(in, in_len, out, out_len, wrkmem))
- return __LZO_QUERY_DECOMPRESS(in, in_len, out, out_len, wrkmem,
- 0, 0);
-#endif
-
-#if defined(COPY_DICT)
- if (dict) {
- if (dict_len > M4_MAX_OFFSET) {
- dict += dict_len - M4_MAX_OFFSET;
- dict_len = M4_MAX_OFFSET;
- }
- dict_end = dict + dict_len;
- } else {
- dict_len = 0;
- dict_end = NULL;
- }
-#endif
-
- *out_len = 0;
-
- op = out;
- ip = in;
-
- if (*ip > 17) {
- t = *ip++ - 17;
- if (t < 4)
- goto match_next;
- assert("lzo-16", t > 0);
- NEED_OP(t);
- NEED_IP(t + 1);
- do
- *op++ = *ip++;
- while (--t > 0);
- goto first_literal_run;
- }
-
- while (TEST_IP && TEST_OP) {
- t = *ip++;
- if (t >= 16)
- goto match;
- if (t == 0) {
- NEED_IP(1);
- while (*ip == 0) {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 15 + *ip++;
- }
- assert("lzo-17", t > 0);
- NEED_OP(t + 3);
- NEED_IP(t + 4);
-#if defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
-#if !defined(LZO_UNALIGNED_OK_4)
- if (PTR_ALIGNED2_4(op, ip)) {
-#endif
- COPY4(op, ip);
- op += 4;
- ip += 4;
- if (--t > 0) {
- if (t >= 4) {
- do {
- COPY4(op, ip);
- op += 4;
- ip += 4;
- t -= 4;
- } while (t >= 4);
- if (t > 0)
- do
- *op++ = *ip++;
- while (--t > 0);
- } else
- do
- *op++ = *ip++;
- while (--t > 0);
- }
-#if !defined(LZO_UNALIGNED_OK_4)
- } else
-#endif
-#endif
-#if !defined(LZO_UNALIGNED_OK_4)
- {
- *op++ = *ip++;
- *op++ = *ip++;
- *op++ = *ip++;
- do
- *op++ = *ip++;
- while (--t > 0);
- }
-#endif
-
- first_literal_run:
-
- t = *ip++;
- if (t >= 16)
- goto match;
-#if defined(COPY_DICT)
-#if defined(LZO1Z)
- m_off = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
- last_m_off = m_off;
-#else
- m_off = (1 + M2_MAX_OFFSET) + (t >> 2) + (*ip++ << 2);
-#endif
- NEED_OP(3);
- t = 3;
- COPY_DICT(t, m_off)
-#else
-#if defined(LZO1Z)
- t = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
- m_pos = op - t;
- last_m_off = t;
-#else
- m_pos = op - (1 + M2_MAX_OFFSET);
- m_pos -= t >> 2;
- m_pos -= *ip++ << 2;
-#endif
- TEST_LOOKBEHIND(m_pos, out);
- NEED_OP(3);
- *op++ = *m_pos++;
- *op++ = *m_pos++;
- *op++ = *m_pos;
-#endif
- goto match_done;
-
- while (TEST_IP && TEST_OP) {
- match:
- if (t >= 64) {
-#if defined(COPY_DICT)
-#if defined(LZO1X)
- m_off = 1 + ((t >> 2) & 7) + (*ip++ << 3);
- t = (t >> 5) - 1;
-#elif defined(LZO1Y)
- m_off = 1 + ((t >> 2) & 3) + (*ip++ << 2);
- t = (t >> 4) - 3;
-#elif defined(LZO1Z)
- m_off = t & 0x1f;
- if (m_off >= 0x1c)
- m_off = last_m_off;
- else {
- m_off = 1 + (m_off << 6) + (*ip++ >> 2);
- last_m_off = m_off;
- }
- t = (t >> 5) - 1;
-#endif
-#else
-#if defined(LZO1X)
- m_pos = op - 1;
- m_pos -= (t >> 2) & 7;
- m_pos -= *ip++ << 3;
- t = (t >> 5) - 1;
-#elif defined(LZO1Y)
- m_pos = op - 1;
- m_pos -= (t >> 2) & 3;
- m_pos -= *ip++ << 2;
- t = (t >> 4) - 3;
-#elif defined(LZO1Z)
- {
- lzo_uint off = t & 0x1f;
- m_pos = op;
- if (off >= 0x1c) {
- assert(last_m_off > 0);
- m_pos -= last_m_off;
- } else {
- off =
- 1 + (off << 6) +
- (*ip++ >> 2);
- m_pos -= off;
- last_m_off = off;
- }
- }
- t = (t >> 5) - 1;
-#endif
- TEST_LOOKBEHIND(m_pos, out);
- assert("lzo-18", t > 0);
- NEED_OP(t + 3 - 1);
- goto copy_match;
-#endif
- } else if (t >= 32) {
- t &= 31;
- if (t == 0) {
- NEED_IP(1);
- while (*ip == 0) {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 31 + *ip++;
- }
-#if defined(COPY_DICT)
-#if defined(LZO1Z)
- m_off = 1 + (ip[0] << 6) + (ip[1] >> 2);
- last_m_off = m_off;
-#else
- m_off = 1 + (ip[0] >> 2) + (ip[1] << 6);
-#endif
-#else
-#if defined(LZO1Z)
- {
- lzo_uint off =
- 1 + (ip[0] << 6) + (ip[1] >> 2);
- m_pos = op - off;
- last_m_off = off;
- }
-#elif defined(LZO_UNALIGNED_OK_2) && (LZO_BYTE_ORDER == LZO_LITTLE_ENDIAN)
- m_pos = op - 1;
- m_pos -= (*(const lzo_ushortp)ip) >> 2;
-#else
- m_pos = op - 1;
- m_pos -= (ip[0] >> 2) + (ip[1] << 6);
-#endif
-#endif
- ip += 2;
- } else if (t >= 16) {
-#if defined(COPY_DICT)
- m_off = (t & 8) << 11;
-#else
- m_pos = op;
- m_pos -= (t & 8) << 11;
-#endif
- t &= 7;
- if (t == 0) {
- NEED_IP(1);
- while (*ip == 0) {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 7 + *ip++;
- }
-#if defined(COPY_DICT)
-#if defined(LZO1Z)
- m_off += (ip[0] << 6) + (ip[1] >> 2);
-#else
- m_off += (ip[0] >> 2) + (ip[1] << 6);
-#endif
- ip += 2;
- if (m_off == 0)
- goto eof_found;
- m_off += 0x4000;
-#if defined(LZO1Z)
- last_m_off = m_off;
-#endif
-#else
-#if defined(LZO1Z)
- m_pos -= (ip[0] << 6) + (ip[1] >> 2);
-#elif defined(LZO_UNALIGNED_OK_2) && (LZO_BYTE_ORDER == LZO_LITTLE_ENDIAN)
- m_pos -= (*(const lzo_ushortp)ip) >> 2;
-#else
- m_pos -= (ip[0] >> 2) + (ip[1] << 6);
-#endif
- ip += 2;
- if (m_pos == op)
- goto eof_found;
- m_pos -= 0x4000;
-#if defined(LZO1Z)
- last_m_off = op - m_pos;
-#endif
-#endif
- } else {
-#if defined(COPY_DICT)
-#if defined(LZO1Z)
- m_off = 1 + (t << 6) + (*ip++ >> 2);
- last_m_off = m_off;
-#else
- m_off = 1 + (t >> 2) + (*ip++ << 2);
-#endif
- NEED_OP(2);
- t = 2;
- COPY_DICT(t, m_off)
-#else
-#if defined(LZO1Z)
- t = 1 + (t << 6) + (*ip++ >> 2);
- m_pos = op - t;
- last_m_off = t;
-#else
- m_pos = op - 1;
- m_pos -= t >> 2;
- m_pos -= *ip++ << 2;
-#endif
- TEST_LOOKBEHIND(m_pos, out);
- NEED_OP(2);
- *op++ = *m_pos++;
- *op++ = *m_pos;
-#endif
- goto match_done;
- }
-
-#if defined(COPY_DICT)
-
- NEED_OP(t + 3 - 1);
- t += 3 - 1;
- COPY_DICT(t, m_off)
-#else
-
- TEST_LOOKBEHIND(m_pos, out);
- assert("lzo-19", t > 0);
- NEED_OP(t + 3 - 1);
-#if defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
-#if !defined(LZO_UNALIGNED_OK_4)
- if (t >= 2 * 4 - (3 - 1) && PTR_ALIGNED2_4(op, m_pos)) {
- assert((op - m_pos) >= 4);
-#else
- if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4) {
-#endif
- COPY4(op, m_pos);
- op += 4;
- m_pos += 4;
- t -= 4 - (3 - 1);
- do {
- COPY4(op, m_pos);
- op += 4;
- m_pos += 4;
- t -= 4;
- } while (t >= 4);
- if (t > 0)
- do
- *op++ = *m_pos++;
- while (--t > 0);
- } else
-#endif
- {
- copy_match:
- *op++ = *m_pos++;
- *op++ = *m_pos++;
- do
- *op++ = *m_pos++;
- while (--t > 0);
- }
-
-#endif
-
- match_done:
-#if defined(LZO1Z)
- t = ip[-1] & 3;
-#else
- t = ip[-2] & 3;
-#endif
- if (t == 0)
- break;
-
- match_next:
- assert("lzo-20", t > 0);
- NEED_OP(t);
- NEED_IP(t + 1);
- do
- *op++ = *ip++;
- while (--t > 0);
- t = *ip++;
- }
- }
-
-#if defined(HAVE_TEST_IP) || defined(HAVE_TEST_OP)
- *out_len = op - out;
- return LZO_E_EOF_NOT_FOUND;
-#endif
-
- eof_found:
- assert("lzo-21", t == 1);
- *out_len = op - out;
- return (ip == ip_end ? LZO_E_OK :
- (ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
-
-#if defined(HAVE_NEED_IP)
- input_overrun:
- *out_len = op - out;
- return LZO_E_INPUT_OVERRUN;
-#endif
-
-#if defined(HAVE_NEED_OP)
- output_overrun:
- *out_len = op - out;
- return LZO_E_OUTPUT_OVERRUN;
-#endif
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
- lookbehind_overrun:
- *out_len = op - out;
- return LZO_E_LOOKBEHIND_OVERRUN;
-#endif
-}
-
-#define LZO_TEST_DECOMPRESS_OVERRUN
-#undef DO_DECOMPRESS
-#define DO_DECOMPRESS lzo1x_decompress_safe
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN)
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_INPUT)
-# define LZO_TEST_DECOMPRESS_OVERRUN_INPUT 2
-# endif
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
-# define LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT 2
-# endif
-# if !defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
-# define LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND
-# endif
-#endif
-
-#undef TEST_IP
-#undef TEST_OP
-#undef TEST_LOOKBEHIND
-#undef NEED_IP
-#undef NEED_OP
-#undef HAVE_TEST_IP
-#undef HAVE_TEST_OP
-#undef HAVE_NEED_IP
-#undef HAVE_NEED_OP
-#undef HAVE_ANY_IP
-#undef HAVE_ANY_OP
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_INPUT)
-# if (LZO_TEST_DECOMPRESS_OVERRUN_INPUT >= 1)
-# define TEST_IP (ip < ip_end)
-# endif
-# if (LZO_TEST_DECOMPRESS_OVERRUN_INPUT >= 2)
-# define NEED_IP(x) \
- if ((lzo_uint)(ip_end - ip) < (lzo_uint)(x)) goto input_overrun
-# endif
-#endif
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
-# if (LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT >= 1)
-# define TEST_OP (op <= op_end)
-# endif
-# if (LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT >= 2)
-# undef TEST_OP
-# define NEED_OP(x) \
- if ((lzo_uint)(op_end - op) < (lzo_uint)(x)) goto output_overrun
-# endif
-#endif
-
-#if defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
-# define TEST_LOOKBEHIND(m_pos,out) if (m_pos < out) goto lookbehind_overrun
-#else
-# define TEST_LOOKBEHIND(m_pos,op) ((void) 0)
-#endif
-
-#if !defined(LZO_EOF_CODE) && !defined(TEST_IP)
-# define TEST_IP (ip < ip_end)
-#endif
-
-#if defined(TEST_IP)
-# define HAVE_TEST_IP
-#else
-# define TEST_IP 1
-#endif
-#if defined(TEST_OP)
-# define HAVE_TEST_OP
-#else
-# define TEST_OP 1
-#endif
-
-#if defined(NEED_IP)
-# define HAVE_NEED_IP
-#else
-# define NEED_IP(x) ((void) 0)
-#endif
-#if defined(NEED_OP)
-# define HAVE_NEED_OP
-#else
-# define NEED_OP(x) ((void) 0)
-#endif
-
-#if defined(HAVE_TEST_IP) || defined(HAVE_NEED_IP)
-# define HAVE_ANY_IP
-#endif
-#if defined(HAVE_TEST_OP) || defined(HAVE_NEED_OP)
-# define HAVE_ANY_OP
-#endif
-
-#undef __COPY4
-#define __COPY4(dst,src) * (lzo_uint32p)(dst) = * (const lzo_uint32p)(src)
-
-#undef COPY4
-#if defined(LZO_UNALIGNED_OK_4)
-# define COPY4(dst,src) __COPY4(dst,src)
-#elif defined(LZO_ALIGNED_OK_4)
-# define COPY4(dst,src) __COPY4((lzo_ptr_t)(dst),(lzo_ptr_t)(src))
-#endif
-
-/***** End of minilzo.c *****/
Index: linux-2.6.21/fs/reiser4/plugin/compress/minilzo.h
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/minilzo.h 2007-06-04 09:49:02.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,70 +0,0 @@
-/* minilzo.h -- mini subset of the LZO real-time data compression library
- adopted for reiser4 compression transform plugin.
-
- This file is part of the LZO real-time data compression library
- and not included in any proprietary licenses of reiser4.
-
- Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
- All Rights Reserved.
-
- The LZO library is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
-
- The LZO library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the LZO library; see the file COPYING.
- If not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- Markus F.X.J. Oberhumer
- <markus@...rhumer.com>
- http://www.oberhumer.com/opensource/lzo/
- */
-
-/*
- * NOTE:
- * the full LZO package can be found at
- * http://www.oberhumer.com/opensource/lzo/
- */
-
-#ifndef __MINILZO_H
-#define __MINILZO_H
-
-#define MINILZO_VERSION 0x1080
-
-#include "lzoconf.h"
-
-/* Memory required for the wrkmem parameter.
- * When the required size is 0, you can also pass a NULL pointer.
- */
-
-#define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS
-#define LZO1X_1_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t))
-#define LZO1X_MEM_DECOMPRESS (0)
-
-/* compression */
-extern int lzo1x_1_compress(const lzo_byte * src, lzo_uint src_len,
- lzo_byte * dst, lzo_uintp dst_len,
- lzo_voidp wrkmem);
-/* decompression */
-extern int lzo1x_decompress(const lzo_byte * src, lzo_uint src_len,
- lzo_byte * dst, lzo_uintp dst_len,
- lzo_voidp wrkmem /* NOT USED */);
-/* safe decompression with overrun testing */
-extern int lzo1x_decompress_safe(const lzo_byte * src, lzo_uint src_len,
- lzo_byte * dst, lzo_uintp dst_len,
- lzo_voidp wrkmem /* NOT USED */ );
-
-#endif /* already included */
-
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