diff options
author | chai <chaifix@163.com> | 2019-03-19 23:06:27 +0800 |
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committer | chai <chaifix@163.com> | 2019-03-19 23:06:27 +0800 |
commit | 1497dccd63a84b7ee2b229b1ad9c5c02718f2a78 (patch) | |
tree | f8d1bff50da13e126d08c7345653e002e293202d /Source/3rdParty/physfs/physfs_lzmasdk.h | |
parent | 5e2a973516e0729b225da9de0b03015dc5854ac4 (diff) |
*rename
Diffstat (limited to 'Source/3rdParty/physfs/physfs_lzmasdk.h')
-rw-r--r-- | Source/3rdParty/physfs/physfs_lzmasdk.h | 6028 |
1 files changed, 0 insertions, 6028 deletions
diff --git a/Source/3rdParty/physfs/physfs_lzmasdk.h b/Source/3rdParty/physfs/physfs_lzmasdk.h deleted file mode 100644 index c86972e..0000000 --- a/Source/3rdParty/physfs/physfs_lzmasdk.h +++ /dev/null @@ -1,6028 +0,0 @@ -#ifndef _INCLUDE_PHYSFS_LZMASDK_H_ -#define _INCLUDE_PHYSFS_LZMASDK_H_ - -/* This is just a bunch of the LZMA SDK mushed together into one header. -This code is all public domain, and mostly (if not entirely) written by -Igor Pavlov. http://www.7-zip.org/sdk.html ---ryan. */ - - - -/* 7zTypes.h -- Basic types -2013-11-12 : Igor Pavlov : Public domain */ - -#ifndef __7Z_TYPES_H -#define __7Z_TYPES_H - -#ifdef _WIN32 -/* #include <windows.h> */ -#endif - -#include <stddef.h> - -#ifndef EXTERN_C_BEGIN -#ifdef __cplusplus -#define EXTERN_C_BEGIN extern "C" { -#define EXTERN_C_END } -#else -#define EXTERN_C_BEGIN -#define EXTERN_C_END -#endif -#endif - -EXTERN_C_BEGIN - -#define SZ_OK 0 - -#define SZ_ERROR_DATA 1 -#define SZ_ERROR_MEM 2 -#define SZ_ERROR_CRC 3 -#define SZ_ERROR_UNSUPPORTED 4 -#define SZ_ERROR_PARAM 5 -#define SZ_ERROR_INPUT_EOF 6 -#define SZ_ERROR_OUTPUT_EOF 7 -#define SZ_ERROR_READ 8 -#define SZ_ERROR_WRITE 9 -#define SZ_ERROR_PROGRESS 10 -#define SZ_ERROR_FAIL 11 -#define SZ_ERROR_THREAD 12 - -#define SZ_ERROR_ARCHIVE 16 -#define SZ_ERROR_NO_ARCHIVE 17 - -typedef int SRes; - -#ifdef _WIN32 -/* typedef DWORD WRes; */ -typedef unsigned WRes; -#else -typedef int WRes; -#endif - -#ifndef RINOK -#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; } -#endif - -typedef unsigned char Byte; -typedef short Int16; -typedef unsigned short UInt16; - -#ifdef _LZMA_UINT32_IS_ULONG -typedef long Int32; -typedef unsigned long UInt32; -#else -typedef int Int32; -typedef unsigned int UInt32; -#endif - -#ifdef _SZ_NO_INT_64 - -/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers. - NOTES: Some code will work incorrectly in that case! */ - -typedef long Int64; -typedef unsigned long UInt64; - -#else - -#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__WATCOMC__) -typedef __int64 Int64; -typedef unsigned __int64 UInt64; -#define UINT64_CONST(n) n ## ui64 -#else -typedef long long int Int64; -typedef unsigned long long int UInt64; -#define UINT64_CONST(n) n ## ULL -#endif - -#endif - -#ifdef _LZMA_NO_SYSTEM_SIZE_T -typedef UInt32 SizeT; -#else -typedef size_t SizeT; -#endif - -typedef int Bool; -#define True 1 -#define False 0 - - -#ifdef _WIN32 -#define MY_STD_CALL __stdcall -#else -#define MY_STD_CALL -#endif - -#ifdef _MSC_VER - -#if _MSC_VER >= 1300 -#define MY_NO_INLINE __declspec(noinline) -#else -#define MY_NO_INLINE -#endif - -#define MY_CDECL __cdecl -#define MY_FAST_CALL __fastcall - -#else - -#define MY_NO_INLINE -#define MY_CDECL -#define MY_FAST_CALL - -#endif - - -/* The following interfaces use first parameter as pointer to structure */ - -typedef struct -{ - Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */ -} IByteIn; - -typedef struct -{ - void (*Write)(void *p, Byte b); -} IByteOut; - -typedef struct -{ - SRes (*Read)(void *p, void *buf, size_t *size); - /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. - (output(*size) < input(*size)) is allowed */ -} ISeqInStream; - -typedef struct -{ - size_t (*Write)(void *p, const void *buf, size_t size); - /* Returns: result - the number of actually written bytes. - (result < size) means error */ -} ISeqOutStream; - -typedef enum -{ - SZ_SEEK_SET = 0, - SZ_SEEK_CUR = 1, - SZ_SEEK_END = 2 -} ESzSeek; - -typedef struct -{ - SRes (*Read)(void *p, void *buf, size_t *size); /* same as ISeqInStream::Read */ - SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); -} ISeekInStream; - -typedef struct -{ - SRes (*Look)(void *p, const void **buf, size_t *size); - /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. - (output(*size) > input(*size)) is not allowed - (output(*size) < input(*size)) is allowed */ - SRes (*Skip)(void *p, size_t offset); - /* offset must be <= output(*size) of Look */ - - SRes (*Read)(void *p, void *buf, size_t *size); - /* reads directly (without buffer). It's same as ISeqInStream::Read */ - SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); -} ILookInStream; - -static SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset); - -/* reads via ILookInStream::Read */ -static SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType); -static SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size); - -#define LookToRead_BUF_SIZE (1 << 14) - -typedef struct -{ - ILookInStream s; - ISeekInStream *realStream; - size_t pos; - size_t size; - Byte buf[LookToRead_BUF_SIZE]; -} CLookToRead; - -static void LookToRead_CreateVTable(CLookToRead *p, int lookahead); -static void LookToRead_Init(CLookToRead *p); - -typedef struct -{ - ISeqInStream s; - ILookInStream *realStream; -} CSecToLook; - -typedef struct -{ - ISeqInStream s; - ILookInStream *realStream; -} CSecToRead; - -typedef struct -{ - SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize); - /* Returns: result. (result != SZ_OK) means break. - Value (UInt64)(Int64)-1 for size means unknown value. */ -} ICompressProgress; - -typedef struct -{ - void *(*Alloc)(void *p, size_t size); - void (*Free)(void *p, void *address); /* address can be 0 */ -} ISzAlloc; - -#define IAlloc_Alloc(p, size) (p)->Alloc((p), size) -#define IAlloc_Free(p, a) (p)->Free((p), a) - -#ifdef _WIN32 - -#define CHAR_PATH_SEPARATOR '\\' -#define WCHAR_PATH_SEPARATOR L'\\' -#define STRING_PATH_SEPARATOR "\\" -#define WSTRING_PATH_SEPARATOR L"\\" - -#else - -#define CHAR_PATH_SEPARATOR '/' -#define WCHAR_PATH_SEPARATOR L'/' -#define STRING_PATH_SEPARATOR "/" -#define WSTRING_PATH_SEPARATOR L"/" - -#endif - -EXTERN_C_END - -#endif - -/* 7z.h -- 7z interface -2015-11-18 : Igor Pavlov : Public domain */ - -#ifndef __7Z_H -#define __7Z_H - -/*#include "7zTypes.h"*/ - -EXTERN_C_BEGIN - -#define k7zStartHeaderSize 0x20 -#define k7zSignatureSize 6 - -static const Byte k7zSignature[k7zSignatureSize]; - -typedef struct -{ - const Byte *Data; - size_t Size; -} CSzData; - -/* CSzCoderInfo & CSzFolder support only default methods */ - -typedef struct -{ - size_t PropsOffset; - UInt32 MethodID; - Byte NumStreams; - Byte PropsSize; -} CSzCoderInfo; - -typedef struct -{ - UInt32 InIndex; - UInt32 OutIndex; -} CSzBond; - -#define SZ_NUM_CODERS_IN_FOLDER_MAX 4 -#define SZ_NUM_BONDS_IN_FOLDER_MAX 3 -#define SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX 4 - -typedef struct -{ - UInt32 NumCoders; - UInt32 NumBonds; - UInt32 NumPackStreams; - UInt32 UnpackStream; - UInt32 PackStreams[SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX]; - CSzBond Bonds[SZ_NUM_BONDS_IN_FOLDER_MAX]; - CSzCoderInfo Coders[SZ_NUM_CODERS_IN_FOLDER_MAX]; -} CSzFolder; - - -static SRes SzGetNextFolderItem(CSzFolder *f, CSzData *sd); - -typedef struct -{ - UInt32 Low; - UInt32 High; -} CNtfsFileTime; - -typedef struct -{ - Byte *Defs; /* MSB 0 bit numbering */ - UInt32 *Vals; -} CSzBitUi32s; - -typedef struct -{ - Byte *Defs; /* MSB 0 bit numbering */ - /* UInt64 *Vals; */ - CNtfsFileTime *Vals; -} CSzBitUi64s; - -#define SzBitArray_Check(p, i) (((p)[(i) >> 3] & (0x80 >> ((i) & 7))) != 0) - -#define SzBitWithVals_Check(p, i) ((p)->Defs && ((p)->Defs[(i) >> 3] & (0x80 >> ((i) & 7))) != 0) - -typedef struct -{ - UInt32 NumPackStreams; - UInt32 NumFolders; - - UInt64 *PackPositions; /* NumPackStreams + 1 */ - CSzBitUi32s FolderCRCs; /* NumFolders */ - - size_t *FoCodersOffsets; /* NumFolders + 1 */ - UInt32 *FoStartPackStreamIndex; /* NumFolders + 1 */ - UInt32 *FoToCoderUnpackSizes; /* NumFolders + 1 */ - Byte *FoToMainUnpackSizeIndex; /* NumFolders */ - UInt64 *CoderUnpackSizes; /* for all coders in all folders */ - - Byte *CodersData; -} CSzAr; - -static UInt64 SzAr_GetFolderUnpackSize(const CSzAr *p, UInt32 folderIndex); - -static SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex, - ILookInStream *stream, UInt64 startPos, - Byte *outBuffer, size_t outSize, - ISzAlloc *allocMain); - -typedef struct -{ - CSzAr db; - - UInt64 startPosAfterHeader; - UInt64 dataPos; - - UInt32 NumFiles; - - UInt64 *UnpackPositions; /* NumFiles + 1 */ - /* Byte *IsEmptyFiles; */ - Byte *IsDirs; - CSzBitUi32s CRCs; - - CSzBitUi32s Attribs; - /* CSzBitUi32s Parents; */ - CSzBitUi64s MTime; - CSzBitUi64s CTime; - - UInt32 *FolderToFile; /* NumFolders + 1 */ - UInt32 *FileToFolder; /* NumFiles */ - - size_t *FileNameOffsets; /* in 2-byte steps */ - Byte *FileNames; /* UTF-16-LE */ -} CSzArEx; - -#define SzArEx_IsDir(p, i) (SzBitArray_Check((p)->IsDirs, i)) - -#define SzArEx_GetFileSize(p, i) ((p)->UnpackPositions[(i) + 1] - (p)->UnpackPositions[i]) - -static void SzArEx_Init(CSzArEx *p); -static void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc); - -/* -if dest == NULL, the return value specifies the required size of the buffer, - in 16-bit characters, including the null-terminating character. -if dest != NULL, the return value specifies the number of 16-bit characters that - are written to the dest, including the null-terminating character. */ - -static size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest); - -/* -size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex); -UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16 *dest); -*/ - - - -/* - SzArEx_Extract extracts file from archive - - *outBuffer must be 0 before first call for each new archive. - - Extracting cache: - If you need to decompress more than one file, you can send - these values from previous call: - *blockIndex, - *outBuffer, - *outBufferSize - You can consider "*outBuffer" as cache of solid block. If your archive is solid, - it will increase decompression speed. - - If you use external function, you can declare these 3 cache variables - (blockIndex, outBuffer, outBufferSize) as static in that external function. - - Free *outBuffer and set *outBuffer to 0, if you want to flush cache. -*/ - -static SRes SzArEx_Extract( - const CSzArEx *db, - ILookInStream *inStream, - UInt32 fileIndex, /* index of file */ - UInt32 *blockIndex, /* index of solid block */ - Byte **outBuffer, /* pointer to pointer to output buffer (allocated with allocMain) */ - size_t *outBufferSize, /* buffer size for output buffer */ - size_t *offset, /* offset of stream for required file in *outBuffer */ - size_t *outSizeProcessed, /* size of file in *outBuffer */ - ISzAlloc *allocMain, - ISzAlloc *allocTemp); - - -/* -SzArEx_Open Errors: -SZ_ERROR_NO_ARCHIVE -SZ_ERROR_ARCHIVE -SZ_ERROR_UNSUPPORTED -SZ_ERROR_MEM -SZ_ERROR_CRC -SZ_ERROR_INPUT_EOF -SZ_ERROR_FAIL -*/ - -static SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, - ISzAlloc *allocMain, ISzAlloc *allocTemp); - -EXTERN_C_END - -#endif - -/* 7zCrc.h -- CRC32 calculation -2013-01-18 : Igor Pavlov : Public domain */ - -#ifndef __7Z_CRC_H -#define __7Z_CRC_H - -/*#include "7zTypes.h" */ - -EXTERN_C_BEGIN - -/* Call CrcGenerateTable one time before other CRC functions */ -static void MY_FAST_CALL CrcGenerateTable(void); - -#define CRC_INIT_VAL 0xFFFFFFFF -#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL) -#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8)) - -static UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size); - -EXTERN_C_END - -#endif - -/* CpuArch.h -- CPU specific code -2016-06-09: Igor Pavlov : Public domain */ - -#ifndef __CPU_ARCH_H -#define __CPU_ARCH_H - -/*#include "7zTypes.h"*/ - -EXTERN_C_BEGIN - -/* -MY_CPU_LE means that CPU is LITTLE ENDIAN. -MY_CPU_BE means that CPU is BIG ENDIAN. -If MY_CPU_LE and MY_CPU_BE are not defined, we don't know about ENDIANNESS of platform. - -MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses. -*/ - -#if defined(_M_X64) \ - || defined(_M_AMD64) \ - || defined(__x86_64__) \ - || defined(__AMD64__) \ - || defined(__amd64__) - #define MY_CPU_AMD64 -#endif - -#if defined(MY_CPU_AMD64) \ - || defined(_M_IA64) \ - || defined(__AARCH64EL__) \ - || defined(__AARCH64EB__) - #define MY_CPU_64BIT -#endif - -#if defined(_M_IX86) || defined(__i386__) -#define MY_CPU_X86 -#endif - -#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64) -#define MY_CPU_X86_OR_AMD64 -#endif - -#if defined(MY_CPU_X86) \ - || defined(_M_ARM) \ - || defined(__ARMEL__) \ - || defined(__THUMBEL__) \ - || defined(__ARMEB__) \ - || defined(__THUMBEB__) - #define MY_CPU_32BIT -#endif - -#if defined(_WIN32) && defined(_M_ARM) -#define MY_CPU_ARM_LE -#endif - -#if defined(_WIN32) && defined(_M_IA64) -#define MY_CPU_IA64_LE -#endif - -#if defined(MY_CPU_X86_OR_AMD64) \ - || defined(MY_CPU_ARM_LE) \ - || defined(MY_CPU_IA64_LE) \ - || defined(__LITTLE_ENDIAN__) \ - || defined(__ARMEL__) \ - || defined(__THUMBEL__) \ - || defined(__AARCH64EL__) \ - || defined(__MIPSEL__) \ - || defined(__MIPSEL) \ - || defined(_MIPSEL) \ - || defined(__BFIN__) \ - || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) - #define MY_CPU_LE -#endif - -#if defined(__BIG_ENDIAN__) \ - || defined(__ARMEB__) \ - || defined(__THUMBEB__) \ - || defined(__AARCH64EB__) \ - || defined(__MIPSEB__) \ - || defined(__MIPSEB) \ - || defined(_MIPSEB) \ - || defined(__m68k__) \ - || defined(__s390__) \ - || defined(__s390x__) \ - || defined(__zarch__) \ - || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)) - #define MY_CPU_BE -#endif - -#if defined(MY_CPU_LE) && defined(MY_CPU_BE) -Stop_Compiling_Bad_Endian -#endif - - -#ifdef MY_CPU_LE - #if defined(MY_CPU_X86_OR_AMD64) \ - /* || defined(__AARCH64EL__) */ - /*#define MY_CPU_LE_UNALIGN*/ - #endif -#endif - - -#ifdef MY_CPU_LE_UNALIGN - -#define GetUi16(p) (*(const UInt16 *)(const void *)(p)) -#define GetUi32(p) (*(const UInt32 *)(const void *)(p)) -#define GetUi64(p) (*(const UInt64 *)(const void *)(p)) - -#define SetUi16(p, v) { *(UInt16 *)(p) = (v); } -#define SetUi32(p, v) { *(UInt32 *)(p) = (v); } -#define SetUi64(p, v) { *(UInt64 *)(p) = (v); } - -#else - -#define GetUi16(p) ( (UInt16) ( \ - ((const Byte *)(p))[0] | \ - ((UInt16)((const Byte *)(p))[1] << 8) )) - -#define GetUi32(p) ( \ - ((const Byte *)(p))[0] | \ - ((UInt32)((const Byte *)(p))[1] << 8) | \ - ((UInt32)((const Byte *)(p))[2] << 16) | \ - ((UInt32)((const Byte *)(p))[3] << 24)) - -#define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32)) - -#define SetUi16(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \ - _ppp_[0] = (Byte)_vvv_; \ - _ppp_[1] = (Byte)(_vvv_ >> 8); } - -#define SetUi32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \ - _ppp_[0] = (Byte)_vvv_; \ - _ppp_[1] = (Byte)(_vvv_ >> 8); \ - _ppp_[2] = (Byte)(_vvv_ >> 16); \ - _ppp_[3] = (Byte)(_vvv_ >> 24); } - -#define SetUi64(p, v) { Byte *_ppp2_ = (Byte *)(p); UInt64 _vvv2_ = (v); \ - SetUi32(_ppp2_ , (UInt32)_vvv2_); \ - SetUi32(_ppp2_ + 4, (UInt32)(_vvv2_ >> 32)); } - -#endif - - -#if defined(MY_CPU_LE_UNALIGN) && /* defined(_WIN64) && */ (_MSC_VER >= 1300) - -/* Note: we use bswap instruction, that is unsupported in 386 cpu */ - -#include <stdlib.h> - -#pragma intrinsic(_byteswap_ulong) -#pragma intrinsic(_byteswap_uint64) -#define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p)) -#define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p)) - -#define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = _byteswap_ulong(v) - -#elif defined(MY_CPU_LE_UNALIGN) && defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) - -#define GetBe32(p) __builtin_bswap32(*(const UInt32 *)(const Byte *)(p)) -#define GetBe64(p) __builtin_bswap64(*(const UInt64 *)(const Byte *)(p)) - -#define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = __builtin_bswap32(v) - -#else - -#define GetBe32(p) ( \ - ((UInt32)((const Byte *)(p))[0] << 24) | \ - ((UInt32)((const Byte *)(p))[1] << 16) | \ - ((UInt32)((const Byte *)(p))[2] << 8) | \ - ((const Byte *)(p))[3] ) - -#define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4)) - -#define SetBe32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \ - _ppp_[0] = (Byte)(_vvv_ >> 24); \ - _ppp_[1] = (Byte)(_vvv_ >> 16); \ - _ppp_[2] = (Byte)(_vvv_ >> 8); \ - _ppp_[3] = (Byte)_vvv_; } - -#endif - - -#define GetBe16(p) ( (UInt16) ( \ - ((UInt16)((const Byte *)(p))[0] << 8) | \ - ((const Byte *)(p))[1] )) - - - -#ifdef MY_CPU_X86_OR_AMD64 - -typedef struct -{ - UInt32 maxFunc; - UInt32 vendor[3]; - UInt32 ver; - UInt32 b; - UInt32 c; - UInt32 d; -} Cx86cpuid; - -enum -{ - CPU_FIRM_INTEL, - CPU_FIRM_AMD, - CPU_FIRM_VIA -}; - -static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d); - -static Bool x86cpuid_CheckAndRead(Cx86cpuid *p); -static int x86cpuid_GetFirm(const Cx86cpuid *p); - -#define x86cpuid_GetFamily(ver) (((ver >> 16) & 0xFF0) | ((ver >> 8) & 0xF)) -#define x86cpuid_GetModel(ver) (((ver >> 12) & 0xF0) | ((ver >> 4) & 0xF)) -#define x86cpuid_GetStepping(ver) (ver & 0xF) - -static Bool CPU_Is_InOrder(); - -#endif - -EXTERN_C_END - -#endif - -/* 7zBuf.h -- Byte Buffer -2013-01-18 : Igor Pavlov : Public domain */ - -#ifndef __7Z_BUF_H -#define __7Z_BUF_H - -/*#include "7zTypes.h" */ - -EXTERN_C_BEGIN - -typedef struct -{ - Byte *data; - size_t size; -} CBuf; - -static void Buf_Init(CBuf *p); -static int Buf_Create(CBuf *p, size_t size, ISzAlloc *alloc); -static void Buf_Free(CBuf *p, ISzAlloc *alloc); - -EXTERN_C_END - -#endif - - -/* Bcj2.h -- BCJ2 Converter for x86 code -2014-11-10 : Igor Pavlov : Public domain */ - -#ifndef __BCJ2_H -#define __BCJ2_H - -/*#include "7zTypes.h" */ - -EXTERN_C_BEGIN - -#define BCJ2_NUM_STREAMS 4 - -enum -{ - BCJ2_STREAM_MAIN, - BCJ2_STREAM_CALL, - BCJ2_STREAM_JUMP, - BCJ2_STREAM_RC -}; - -enum -{ - BCJ2_DEC_STATE_ORIG_0 = BCJ2_NUM_STREAMS, - BCJ2_DEC_STATE_ORIG_1, - BCJ2_DEC_STATE_ORIG_2, - BCJ2_DEC_STATE_ORIG_3, - - BCJ2_DEC_STATE_ORIG, - BCJ2_DEC_STATE_OK -}; - -enum -{ - BCJ2_ENC_STATE_ORIG = BCJ2_NUM_STREAMS, - BCJ2_ENC_STATE_OK -}; - - -#define BCJ2_IS_32BIT_STREAM(s) ((s) == BCJ2_STREAM_CALL || (s) == BCJ2_STREAM_JUMP) - -/* -CBcj2Dec / CBcj2Enc -bufs sizes: - BUF_SIZE(n) = lims[n] - bufs[n] -bufs sizes for BCJ2_STREAM_CALL and BCJ2_STREAM_JUMP must be mutliply of 4: - (BUF_SIZE(BCJ2_STREAM_CALL) & 3) == 0 - (BUF_SIZE(BCJ2_STREAM_JUMP) & 3) == 0 -*/ - -/* -CBcj2Dec: -dest is allowed to overlap with bufs[BCJ2_STREAM_MAIN], with the following conditions: - bufs[BCJ2_STREAM_MAIN] >= dest && - bufs[BCJ2_STREAM_MAIN] - dest >= tempReserv + - BUF_SIZE(BCJ2_STREAM_CALL) + - BUF_SIZE(BCJ2_STREAM_JUMP) - tempReserv = 0 : for first call of Bcj2Dec_Decode - tempReserv = 4 : for any other calls of Bcj2Dec_Decode - overlap with offset = 1 is not allowed -*/ - -typedef struct -{ - const Byte *bufs[BCJ2_NUM_STREAMS]; - const Byte *lims[BCJ2_NUM_STREAMS]; - Byte *dest; - const Byte *destLim; - - unsigned state; /* BCJ2_STREAM_MAIN has more priority than BCJ2_STATE_ORIG */ - - UInt32 ip; - Byte temp[4]; - UInt32 range; - UInt32 code; - UInt16 probs[2 + 256]; -} CBcj2Dec; - -static void Bcj2Dec_Init(CBcj2Dec *p); - -/* Returns: SZ_OK or SZ_ERROR_DATA */ -static SRes Bcj2Dec_Decode(CBcj2Dec *p); - -#define Bcj2Dec_IsFinished(_p_) ((_p_)->code == 0) - -#define BCJ2_RELAT_LIMIT_NUM_BITS 26 -#define BCJ2_RELAT_LIMIT ((UInt32)1 << BCJ2_RELAT_LIMIT_NUM_BITS) - -/* limit for CBcj2Enc::fileSize variable */ -#define BCJ2_FileSize_MAX ((UInt32)1 << 31) - -EXTERN_C_END - -#endif - -/* Bra.h -- Branch converters for executables -2013-01-18 : Igor Pavlov : Public domain */ - -#ifndef __BRA_H -#define __BRA_H - -/*#include "7zTypes.h"*/ - -EXTERN_C_BEGIN - -/* -These functions convert relative addresses to absolute addresses -in CALL instructions to increase the compression ratio. - - In: - data - data buffer - size - size of data - ip - current virtual Instruction Pinter (IP) value - state - state variable for x86 converter - encoding - 0 (for decoding), 1 (for encoding) - - Out: - state - state variable for x86 converter - - Returns: - The number of processed bytes. If you call these functions with multiple calls, - you must start next call with first byte after block of processed bytes. - - Type Endian Alignment LookAhead - - x86 little 1 4 - ARMT little 2 2 - ARM little 4 0 - PPC big 4 0 - SPARC big 4 0 - IA64 little 16 0 - - size must be >= Alignment + LookAhead, if it's not last block. - If (size < Alignment + LookAhead), converter returns 0. - - Example: - - UInt32 ip = 0; - for () - { - ; size must be >= Alignment + LookAhead, if it's not last block - SizeT processed = Convert(data, size, ip, 1); - data += processed; - size -= processed; - ip += processed; - } -*/ - -#define x86_Convert_Init(state) { state = 0; } -static SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding); -static SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding); -static SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding); -static SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding); -static SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding); -static SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding); - -EXTERN_C_END - -#endif - -/* Delta.h -- Delta converter -2013-01-18 : Igor Pavlov : Public domain */ - -#ifndef __DELTA_H -#define __DELTA_H - -/*#include "7zTypes.h" */ - -EXTERN_C_BEGIN - -#define DELTA_STATE_SIZE 256 - -static void Delta_Init(Byte *state); -static void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size); - -EXTERN_C_END - -#endif - -/* LzmaDec.h -- LZMA Decoder -2013-01-18 : Igor Pavlov : Public domain */ - -#ifndef __LZMA_DEC_H -#define __LZMA_DEC_H - -/*#include "7zTypes.h"*/ - -EXTERN_C_BEGIN - -/* #define _LZMA_PROB32 */ -/* _LZMA_PROB32 can increase the speed on some CPUs, - but memory usage for CLzmaDec::probs will be doubled in that case */ - -#ifdef _LZMA_PROB32 -#define CLzmaProb UInt32 -#else -#define CLzmaProb UInt16 -#endif - - -/* ---------- LZMA Properties ---------- */ - -#define LZMA_PROPS_SIZE 5 - -typedef struct _CLzmaProps -{ - unsigned lc, lp, pb; - UInt32 dicSize; -} CLzmaProps; - -/* LzmaProps_Decode - decodes properties -Returns: - SZ_OK - SZ_ERROR_UNSUPPORTED - Unsupported properties -*/ - -static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size); - - -/* ---------- LZMA Decoder state ---------- */ - -/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case. - Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */ - -#define LZMA_REQUIRED_INPUT_MAX 20 - -typedef struct -{ - CLzmaProps prop; - CLzmaProb *probs; - Byte *dic; - const Byte *buf; - UInt32 range, code; - SizeT dicPos; - SizeT dicBufSize; - UInt32 processedPos; - UInt32 checkDicSize; - unsigned state; - UInt32 reps[4]; - unsigned remainLen; - int needFlush; - int needInitState; - UInt32 numProbs; - unsigned tempBufSize; - Byte tempBuf[LZMA_REQUIRED_INPUT_MAX]; -} CLzmaDec; - -#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; } - -static void LzmaDec_Init(CLzmaDec *p); - -/* There are two types of LZMA streams: - 0) Stream with end mark. That end mark adds about 6 bytes to compressed size. - 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */ - -typedef enum -{ - LZMA_FINISH_ANY, /* finish at any point */ - LZMA_FINISH_END /* block must be finished at the end */ -} ELzmaFinishMode; - -/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!! - - You must use LZMA_FINISH_END, when you know that current output buffer - covers last bytes of block. In other cases you must use LZMA_FINISH_ANY. - - If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK, - and output value of destLen will be less than output buffer size limit. - You can check status result also. - - You can use multiple checks to test data integrity after full decompression: - 1) Check Result and "status" variable. - 2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize. - 3) Check that output(srcLen) = compressedSize, if you know real compressedSize. - You must use correct finish mode in that case. */ - -typedef enum -{ - LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */ - LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */ - LZMA_STATUS_NOT_FINISHED, /* stream was not finished */ - LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */ - LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */ -} ELzmaStatus; - -/* ELzmaStatus is used only as output value for function call */ - - -/* ---------- Interfaces ---------- */ - -/* There are 3 levels of interfaces: - 1) Dictionary Interface - 2) Buffer Interface - 3) One Call Interface - You can select any of these interfaces, but don't mix functions from different - groups for same object. */ - - -/* There are two variants to allocate state for Dictionary Interface: - 1) LzmaDec_Allocate / LzmaDec_Free - 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs - You can use variant 2, if you set dictionary buffer manually. - For Buffer Interface you must always use variant 1. - -LzmaDec_Allocate* can return: - SZ_OK - SZ_ERROR_MEM - Memory allocation error - SZ_ERROR_UNSUPPORTED - Unsupported properties -*/ - -static SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc); -static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc); - -/* ---------- Dictionary Interface ---------- */ - -/* You can use it, if you want to eliminate the overhead for data copying from - dictionary to some other external buffer. - You must work with CLzmaDec variables directly in this interface. - - STEPS: - LzmaDec_Constr() - LzmaDec_Allocate() - for (each new stream) - { - LzmaDec_Init() - while (it needs more decompression) - { - LzmaDec_DecodeToDic() - use data from CLzmaDec::dic and update CLzmaDec::dicPos - } - } - LzmaDec_Free() -*/ - -/* LzmaDec_DecodeToDic - - The decoding to internal dictionary buffer (CLzmaDec::dic). - You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!! - -finishMode: - It has meaning only if the decoding reaches output limit (dicLimit). - LZMA_FINISH_ANY - Decode just dicLimit bytes. - LZMA_FINISH_END - Stream must be finished after dicLimit. - -Returns: - SZ_OK - status: - LZMA_STATUS_FINISHED_WITH_MARK - LZMA_STATUS_NOT_FINISHED - LZMA_STATUS_NEEDS_MORE_INPUT - LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK - SZ_ERROR_DATA - Data error -*/ - -static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, - const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); - -EXTERN_C_END - -#endif - -/* Lzma2Dec.h -- LZMA2 Decoder -2015-05-13 : Igor Pavlov : Public domain */ - -#ifndef __LZMA2_DEC_H -#define __LZMA2_DEC_H - -/*#include "LzmaDec.h"*/ - -EXTERN_C_BEGIN - -/* ---------- State Interface ---------- */ - -typedef struct -{ - CLzmaDec decoder; - UInt32 packSize; - UInt32 unpackSize; - unsigned state; - Byte control; - Bool needInitDic; - Bool needInitState; - Bool needInitProp; -} CLzma2Dec; - -#define Lzma2Dec_Construct(p) LzmaDec_Construct(&(p)->decoder) -#define Lzma2Dec_FreeProbs(p, alloc) LzmaDec_FreeProbs(&(p)->decoder, alloc); -#define Lzma2Dec_Free(p, alloc) LzmaDec_Free(&(p)->decoder, alloc); - -static SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc); -static void Lzma2Dec_Init(CLzma2Dec *p); - - -/* -finishMode: - It has meaning only if the decoding reaches output limit (*destLen or dicLimit). - LZMA_FINISH_ANY - use smallest number of input bytes - LZMA_FINISH_END - read EndOfStream marker after decoding - -Returns: - SZ_OK - status: - LZMA_STATUS_FINISHED_WITH_MARK - LZMA_STATUS_NOT_FINISHED - LZMA_STATUS_NEEDS_MORE_INPUT - SZ_ERROR_DATA - Data error -*/ - -static SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit, - const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); - - -EXTERN_C_END - -#endif - - -/* END HEADERS */ - - -/* 7zCrc.c -- CRC32 init -2015-03-10 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "7zCrc.h" -#include "CpuArch.h" -*/ -#define UNUSED_VAR(x) (void)x; - -#define kCrcPoly 0xEDB88320 - -#ifdef MY_CPU_LE - #define CRC_NUM_TABLES 8 -#else - #define CRC_NUM_TABLES 9 - - #define CRC_UINT32_SWAP(v) ((v >> 24) | ((v >> 8) & 0xFF00) | ((v << 8) & 0xFF0000) | (v << 24)) - - static UInt32 MY_FAST_CALL CrcUpdateT1_BeT4(UInt32 v, const void *data, size_t size, const UInt32 *table); - static UInt32 MY_FAST_CALL CrcUpdateT1_BeT8(UInt32 v, const void *data, size_t size, const UInt32 *table); -#endif - -#ifndef MY_CPU_BE - static UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table); - static UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table); -#endif - -typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table); - -static CRC_FUNC g_CrcUpdateT4; -static CRC_FUNC g_CrcUpdateT8; -static CRC_FUNC g_CrcUpdate; - -static UInt32 g_CrcTable[256 * CRC_NUM_TABLES]; - -static UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size) -{ - return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL; -} - -#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8)) - -#if CRC_NUM_TABLES < 4 -static UInt32 MY_FAST_CALL CrcUpdateT1(UInt32 v, const void *data, size_t size, const UInt32 *table) -{ - const Byte *p = (const Byte *)data; - const Byte *pEnd = p + size; - for (; p != pEnd; p++) - v = CRC_UPDATE_BYTE_2(v, *p); - return v; -} -#endif - -static void MY_FAST_CALL CrcGenerateTable() -{ - UInt32 i; - for (i = 0; i < 256; i++) - { - UInt32 r = i; - unsigned j; - for (j = 0; j < 8; j++) - r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1)); - g_CrcTable[i] = r; - } - for (; i < 256 * CRC_NUM_TABLES; i++) - { - UInt32 r = g_CrcTable[i - 256]; - g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8); - } - - #if CRC_NUM_TABLES < 4 - - g_CrcUpdate = CrcUpdateT1; - - #else - - #ifdef MY_CPU_LE - - g_CrcUpdateT4 = CrcUpdateT4; - g_CrcUpdate = CrcUpdateT4; - - #if CRC_NUM_TABLES >= 8 - g_CrcUpdateT8 = CrcUpdateT8; - - #ifdef MY_CPU_X86_OR_AMD64 - if (!CPU_Is_InOrder()) - g_CrcUpdate = CrcUpdateT8; - #endif - #endif - - #else - { - #ifndef MY_CPU_BE - UInt32 k = 0x01020304; - const Byte *p = (const Byte *)&k; - if (p[0] == 4 && p[1] == 3) - { - g_CrcUpdateT4 = CrcUpdateT4; - g_CrcUpdate = CrcUpdateT4; - #if CRC_NUM_TABLES >= 8 - g_CrcUpdateT8 = CrcUpdateT8; - /* g_CrcUpdate = CrcUpdateT8; */ - #endif - } - else if (p[0] != 1 || p[1] != 2) - g_CrcUpdate = CrcUpdateT1; - else - #endif - { - for (i = 256 * CRC_NUM_TABLES - 1; i >= 256; i--) - { - UInt32 x = g_CrcTable[i - 256]; - g_CrcTable[i] = CRC_UINT32_SWAP(x); - } - g_CrcUpdateT4 = CrcUpdateT1_BeT4; - g_CrcUpdate = CrcUpdateT1_BeT4; - #if CRC_NUM_TABLES >= 8 - g_CrcUpdateT8 = CrcUpdateT1_BeT8; - /* g_CrcUpdate = CrcUpdateT1_BeT8; */ - #endif - } - } - #endif - - #endif -} - -/* 7zCrcOpt.c -- CRC32 calculation -2015-03-01 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "CpuArch.h" -*/ - -#ifndef MY_CPU_BE - -#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8)) - -static UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table) -{ - const Byte *p = (const Byte *)data; - for (; size > 0 && ((unsigned)(ptrdiff_t)p & 3) != 0; size--, p++) - v = CRC_UPDATE_BYTE_2(v, *p); - for (; size >= 4; size -= 4, p += 4) - { - v ^= *(const UInt32 *)p; - v = - table[0x300 + ((v ) & 0xFF)] - ^ table[0x200 + ((v >> 8) & 0xFF)] - ^ table[0x100 + ((v >> 16) & 0xFF)] - ^ table[0x000 + ((v >> 24))]; - } - for (; size > 0; size--, p++) - v = CRC_UPDATE_BYTE_2(v, *p); - return v; -} - -static UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table) -{ - const Byte *p = (const Byte *)data; - for (; size > 0 && ((unsigned)(ptrdiff_t)p & 7) != 0; size--, p++) - v = CRC_UPDATE_BYTE_2(v, *p); - for (; size >= 8; size -= 8, p += 8) - { - UInt32 d; - v ^= *(const UInt32 *)p; - v = - table[0x700 + ((v ) & 0xFF)] - ^ table[0x600 + ((v >> 8) & 0xFF)] - ^ table[0x500 + ((v >> 16) & 0xFF)] - ^ table[0x400 + ((v >> 24))]; - d = *((const UInt32 *)p + 1); - v ^= - table[0x300 + ((d ) & 0xFF)] - ^ table[0x200 + ((d >> 8) & 0xFF)] - ^ table[0x100 + ((d >> 16) & 0xFF)] - ^ table[0x000 + ((d >> 24))]; - } - for (; size > 0; size--, p++) - v = CRC_UPDATE_BYTE_2(v, *p); - return v; -} - -#endif - - -#ifndef MY_CPU_LE - -#define CRC_UINT32_SWAP(v) ((v >> 24) | ((v >> 8) & 0xFF00) | ((v << 8) & 0xFF0000) | (v << 24)) - -#define CRC_UPDATE_BYTE_2_BE(crc, b) (table[(((crc) >> 24) ^ (b))] ^ ((crc) << 8)) - -static UInt32 MY_FAST_CALL CrcUpdateT1_BeT4(UInt32 v, const void *data, size_t size, const UInt32 *table) -{ - const Byte *p = (const Byte *)data; - table += 0x100; - v = CRC_UINT32_SWAP(v); - for (; size > 0 && ((unsigned)(ptrdiff_t)p & 3) != 0; size--, p++) - v = CRC_UPDATE_BYTE_2_BE(v, *p); - for (; size >= 4; size -= 4, p += 4) - { - v ^= *(const UInt32 *)p; - v = - table[0x000 + ((v ) & 0xFF)] - ^ table[0x100 + ((v >> 8) & 0xFF)] - ^ table[0x200 + ((v >> 16) & 0xFF)] - ^ table[0x300 + ((v >> 24))]; - } - for (; size > 0; size--, p++) - v = CRC_UPDATE_BYTE_2_BE(v, *p); - return CRC_UINT32_SWAP(v); -} - -static UInt32 MY_FAST_CALL CrcUpdateT1_BeT8(UInt32 v, const void *data, size_t size, const UInt32 *table) -{ - const Byte *p = (const Byte *)data; - table += 0x100; - v = CRC_UINT32_SWAP(v); - for (; size > 0 && ((unsigned)(ptrdiff_t)p & 7) != 0; size--, p++) - v = CRC_UPDATE_BYTE_2_BE(v, *p); - for (; size >= 8; size -= 8, p += 8) - { - UInt32 d; - v ^= *(const UInt32 *)p; - v = - table[0x400 + ((v ) & 0xFF)] - ^ table[0x500 + ((v >> 8) & 0xFF)] - ^ table[0x600 + ((v >> 16) & 0xFF)] - ^ table[0x700 + ((v >> 24))]; - d = *((const UInt32 *)p + 1); - v ^= - table[0x000 + ((d ) & 0xFF)] - ^ table[0x100 + ((d >> 8) & 0xFF)] - ^ table[0x200 + ((d >> 16) & 0xFF)] - ^ table[0x300 + ((d >> 24))]; - } - for (; size > 0; size--, p++) - v = CRC_UPDATE_BYTE_2_BE(v, *p); - return CRC_UINT32_SWAP(v); -} - -#endif - -/* CpuArch.c -- CPU specific code -2016-02-25: Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "CpuArch.h" -*/ - -#ifdef MY_CPU_X86_OR_AMD64 - -#if (defined(_MSC_VER) && !defined(MY_CPU_AMD64)) || defined(__GNUC__) -#define USE_ASM -#endif - -#if !defined(USE_ASM) && _MSC_VER >= 1500 -#include <intrin.h> -#endif - -#if defined(USE_ASM) && !defined(MY_CPU_AMD64) -static UInt32 CheckFlag(UInt32 flag) -{ - #ifdef _MSC_VER - __asm pushfd; - __asm pop EAX; - __asm mov EDX, EAX; - __asm xor EAX, flag; - __asm push EAX; - __asm popfd; - __asm pushfd; - __asm pop EAX; - __asm xor EAX, EDX; - __asm push EDX; - __asm popfd; - __asm and flag, EAX; - #else - __asm__ __volatile__ ( - "pushf\n\t" - "pop %%EAX\n\t" - "movl %%EAX,%%EDX\n\t" - "xorl %0,%%EAX\n\t" - "push %%EAX\n\t" - "popf\n\t" - "pushf\n\t" - "pop %%EAX\n\t" - "xorl %%EDX,%%EAX\n\t" - "push %%EDX\n\t" - "popf\n\t" - "andl %%EAX, %0\n\t": - "=c" (flag) : "c" (flag) : - "%eax", "%edx"); - #endif - return flag; -} -#define CHECK_CPUID_IS_SUPPORTED if (CheckFlag(1 << 18) == 0 || CheckFlag(1 << 21) == 0) return False; -#else -#define CHECK_CPUID_IS_SUPPORTED -#endif - -#if defined(__WATCOMC__) -static void __cpuid(int *cpuinfo, const UInt32 infotype); -#pragma aux __cpuid = \ - ".586" \ - "cpuid" \ - "mov [esi+0],eax" \ - "mov [esi+4],ebx" \ - "mov [esi+8],ecx" \ - "mov [esi+12],edx" \ - parm [esi] [eax] modify [ebx ecx edx]; -#endif - - -static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d) -{ - #ifdef USE_ASM - - #ifdef _MSC_VER - - UInt32 a2, b2, c2, d2; - __asm xor EBX, EBX; - __asm xor ECX, ECX; - __asm xor EDX, EDX; - __asm mov EAX, function; - __asm cpuid; - __asm mov a2, EAX; - __asm mov b2, EBX; - __asm mov c2, ECX; - __asm mov d2, EDX; - - *a = a2; - *b = b2; - *c = c2; - *d = d2; - - #else - - __asm__ __volatile__ ( - #if defined(MY_CPU_AMD64) && defined(__PIC__) - "mov %%rbx, %%rdi;" - "cpuid;" - "xchg %%rbx, %%rdi;" - : "=a" (*a) , - "=D" (*b) , - #elif defined(MY_CPU_X86) && defined(__PIC__) - "mov %%ebx, %%edi;" - "cpuid;" - "xchgl %%ebx, %%edi;" - : "=a" (*a) , - "=D" (*b) , - #else - "cpuid" - : "=a" (*a) , - "=b" (*b) , - #endif - "=c" (*c) , - "=d" (*d) - : "0" (function)) ; - - #endif - - #else - - int CPUInfo[4]; - __cpuid(CPUInfo, function); - *a = CPUInfo[0]; - *b = CPUInfo[1]; - *c = CPUInfo[2]; - *d = CPUInfo[3]; - - #endif -} - -static Bool x86cpuid_CheckAndRead(Cx86cpuid *p) -{ - CHECK_CPUID_IS_SUPPORTED - MyCPUID(0, &p->maxFunc, &p->vendor[0], &p->vendor[2], &p->vendor[1]); - MyCPUID(1, &p->ver, &p->b, &p->c, &p->d); - return True; -} - -static const UInt32 kVendors[][3] = -{ - { 0x756E6547, 0x49656E69, 0x6C65746E}, - { 0x68747541, 0x69746E65, 0x444D4163}, - { 0x746E6543, 0x48727561, 0x736C7561} -}; - -static int x86cpuid_GetFirm(const Cx86cpuid *p) -{ - unsigned i; - for (i = 0; i < sizeof(kVendors) / sizeof(kVendors[i]); i++) - { - const UInt32 *v = kVendors[i]; - if (v[0] == p->vendor[0] && - v[1] == p->vendor[1] && - v[2] == p->vendor[2]) - return (int)i; - } - return -1; -} - -static Bool CPU_Is_InOrder() -{ - Cx86cpuid p; - int firm; - UInt32 family, model; - if (!x86cpuid_CheckAndRead(&p)) - return True; - - family = x86cpuid_GetFamily(p.ver); - model = x86cpuid_GetModel(p.ver); - - firm = x86cpuid_GetFirm(&p); - - switch (firm) - { - case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && ( - /* In-Order Atom CPU */ - model == 0x1C /* 45 nm, N4xx, D4xx, N5xx, D5xx, 230, 330 */ - || model == 0x26 /* 45 nm, Z6xx */ - || model == 0x27 /* 32 nm, Z2460 */ - || model == 0x35 /* 32 nm, Z2760 */ - || model == 0x36 /* 32 nm, N2xxx, D2xxx */ - ))); - case CPU_FIRM_AMD: return (family < 5 || (family == 5 && (model < 6 || model == 0xA))); - case CPU_FIRM_VIA: return (family < 6 || (family == 6 && model < 0xF)); - } - return True; -} - -#endif - -/* 7zStream.c -- 7z Stream functions -2013-11-12 : Igor Pavlov : Public domain */ - -/*#include "Precomp.h"*/ - -#include <string.h> - -/*#include "7zTypes.h"*/ - -static SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset) -{ - Int64 t = offset; - return stream->Seek(stream, &t, SZ_SEEK_SET); -} - -static SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType) -{ - while (size != 0) - { - size_t processed = size; - RINOK(stream->Read(stream, buf, &processed)); - if (processed == 0) - return errorType; - buf = (void *)((Byte *)buf + processed); - size -= processed; - } - return SZ_OK; -} - -static SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size) -{ - return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF); -} - -static SRes LookToRead_Look_Lookahead(void *pp, const void **buf, size_t *size) -{ - SRes res = SZ_OK; - CLookToRead *p = (CLookToRead *)pp; - size_t size2 = p->size - p->pos; - if (size2 == 0 && *size > 0) - { - p->pos = 0; - size2 = LookToRead_BUF_SIZE; - res = p->realStream->Read(p->realStream, p->buf, &size2); - p->size = size2; - } - if (size2 < *size) - *size = size2; - *buf = p->buf + p->pos; - return res; -} - -static SRes LookToRead_Look_Exact(void *pp, const void **buf, size_t *size) -{ - SRes res = SZ_OK; - CLookToRead *p = (CLookToRead *)pp; - size_t size2 = p->size - p->pos; - if (size2 == 0 && *size > 0) - { - p->pos = 0; - if (*size > LookToRead_BUF_SIZE) - *size = LookToRead_BUF_SIZE; - res = p->realStream->Read(p->realStream, p->buf, size); - size2 = p->size = *size; - } - if (size2 < *size) - *size = size2; - *buf = p->buf + p->pos; - return res; -} - -static SRes LookToRead_Skip(void *pp, size_t offset) -{ - CLookToRead *p = (CLookToRead *)pp; - p->pos += offset; - return SZ_OK; -} - -static SRes LookToRead_Read(void *pp, void *buf, size_t *size) -{ - CLookToRead *p = (CLookToRead *)pp; - size_t rem = p->size - p->pos; - if (rem == 0) - return p->realStream->Read(p->realStream, buf, size); - if (rem > *size) - rem = *size; - memcpy(buf, p->buf + p->pos, rem); - p->pos += rem; - *size = rem; - return SZ_OK; -} - -static SRes LookToRead_Seek(void *pp, Int64 *pos, ESzSeek origin) -{ - CLookToRead *p = (CLookToRead *)pp; - p->pos = p->size = 0; - return p->realStream->Seek(p->realStream, pos, origin); -} - -static void LookToRead_CreateVTable(CLookToRead *p, int lookahead) -{ - p->s.Look = lookahead ? - LookToRead_Look_Lookahead : - LookToRead_Look_Exact; - p->s.Skip = LookToRead_Skip; - p->s.Read = LookToRead_Read; - p->s.Seek = LookToRead_Seek; -} - -static void LookToRead_Init(CLookToRead *p) -{ - p->pos = p->size = 0; -} - - -/* 7zArcIn.c -- 7z Input functions -2016-05-16 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include <string.h> - -#include "7z.h" -#include "7zBuf.h" -#include "7zCrc.h" -#include "CpuArch.h" -*/ - -#define MY_ALLOC(T, p, size, alloc) { \ - if ((p = (T *)IAlloc_Alloc(alloc, (size) * sizeof(T))) == NULL) return SZ_ERROR_MEM; } - -#define MY_ALLOC_ZE(T, p, size, alloc) { if ((size) == 0) p = NULL; else MY_ALLOC(T, p, size, alloc) } - -#define MY_ALLOC_AND_CPY(to, size, from, alloc) \ - { MY_ALLOC(Byte, to, size, alloc); memcpy(to, from, size); } - -#define MY_ALLOC_ZE_AND_CPY(to, size, from, alloc) \ - { if ((size) == 0) p = NULL; else { MY_ALLOC_AND_CPY(to, size, from, alloc) } } - -#define k7zMajorVersion 0 - -enum EIdEnum -{ - k7zIdEnd, - k7zIdHeader, - k7zIdArchiveProperties, - k7zIdAdditionalStreamsInfo, - k7zIdMainStreamsInfo, - k7zIdFilesInfo, - k7zIdPackInfo, - k7zIdUnpackInfo, - k7zIdSubStreamsInfo, - k7zIdSize, - k7zIdCRC, - k7zIdFolder, - k7zIdCodersUnpackSize, - k7zIdNumUnpackStream, - k7zIdEmptyStream, - k7zIdEmptyFile, - k7zIdAnti, - k7zIdName, - k7zIdCTime, - k7zIdATime, - k7zIdMTime, - k7zIdWinAttrib, - k7zIdComment, - k7zIdEncodedHeader, - k7zIdStartPos, - k7zIdDummy - /* k7zNtSecure, */ - /* k7zParent, */ - /* k7zIsReal */ -}; - -static const Byte k7zSignature[k7zSignatureSize] = {'7', 'z', 0xBC, 0xAF, 0x27, 0x1C}; - -#define SzBitUi32s_Init(p) { (p)->Defs = NULL; (p)->Vals = NULL; } - -static SRes SzBitUi32s_Alloc(CSzBitUi32s *p, size_t num, ISzAlloc *alloc) -{ - if (num == 0) - { - p->Defs = NULL; - p->Vals = NULL; - } - else - { - MY_ALLOC(Byte, p->Defs, (num + 7) >> 3, alloc); - MY_ALLOC(UInt32, p->Vals, num, alloc); - } - return SZ_OK; -} - -static void SzBitUi32s_Free(CSzBitUi32s *p, ISzAlloc *alloc) -{ - IAlloc_Free(alloc, p->Defs); p->Defs = NULL; - IAlloc_Free(alloc, p->Vals); p->Vals = NULL; -} - -#define SzBitUi64s_Init(p) { (p)->Defs = NULL; (p)->Vals = NULL; } - -static void SzBitUi64s_Free(CSzBitUi64s *p, ISzAlloc *alloc) -{ - IAlloc_Free(alloc, p->Defs); p->Defs = NULL; - IAlloc_Free(alloc, p->Vals); p->Vals = NULL; -} - - -static void SzAr_Init(CSzAr *p) -{ - p->NumPackStreams = 0; - p->NumFolders = 0; - - p->PackPositions = NULL; - SzBitUi32s_Init(&p->FolderCRCs); - - p->FoCodersOffsets = NULL; - p->FoStartPackStreamIndex = NULL; - p->FoToCoderUnpackSizes = NULL; - p->FoToMainUnpackSizeIndex = NULL; - p->CoderUnpackSizes = NULL; - - p->CodersData = NULL; -} - -static void SzAr_Free(CSzAr *p, ISzAlloc *alloc) -{ - IAlloc_Free(alloc, p->PackPositions); - SzBitUi32s_Free(&p->FolderCRCs, alloc); - - IAlloc_Free(alloc, p->FoCodersOffsets); - IAlloc_Free(alloc, p->FoStartPackStreamIndex); - IAlloc_Free(alloc, p->FoToCoderUnpackSizes); - IAlloc_Free(alloc, p->FoToMainUnpackSizeIndex); - IAlloc_Free(alloc, p->CoderUnpackSizes); - - IAlloc_Free(alloc, p->CodersData); - - SzAr_Init(p); -} - - -static void SzArEx_Init(CSzArEx *p) -{ - SzAr_Init(&p->db); - - p->NumFiles = 0; - p->dataPos = 0; - - p->UnpackPositions = NULL; - p->IsDirs = NULL; - - p->FolderToFile = NULL; - p->FileToFolder = NULL; - - p->FileNameOffsets = NULL; - p->FileNames = NULL; - - SzBitUi32s_Init(&p->CRCs); - SzBitUi32s_Init(&p->Attribs); - /* SzBitUi32s_Init(&p->Parents); */ - SzBitUi64s_Init(&p->MTime); - SzBitUi64s_Init(&p->CTime); -} - -static void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc) -{ - IAlloc_Free(alloc, p->UnpackPositions); - IAlloc_Free(alloc, p->IsDirs); - - IAlloc_Free(alloc, p->FolderToFile); - IAlloc_Free(alloc, p->FileToFolder); - - IAlloc_Free(alloc, p->FileNameOffsets); - IAlloc_Free(alloc, p->FileNames); - - SzBitUi32s_Free(&p->CRCs, alloc); - SzBitUi32s_Free(&p->Attribs, alloc); - /* SzBitUi32s_Free(&p->Parents, alloc); */ - SzBitUi64s_Free(&p->MTime, alloc); - SzBitUi64s_Free(&p->CTime, alloc); - - SzAr_Free(&p->db, alloc); - SzArEx_Init(p); -} - - -static int TestSignatureCandidate(const Byte *testBytes) -{ - unsigned i; - for (i = 0; i < k7zSignatureSize; i++) - if (testBytes[i] != k7zSignature[i]) - return 0; - return 1; -} - -#define SzData_Clear(p) { (p)->Data = NULL; (p)->Size = 0; } - -#define SZ_READ_BYTE_SD(_sd_, dest) if ((_sd_)->Size == 0) return SZ_ERROR_ARCHIVE; (_sd_)->Size--; dest = *(_sd_)->Data++; -#define SZ_READ_BYTE(dest) SZ_READ_BYTE_SD(sd, dest) -#define SZ_READ_BYTE_2(dest) if (sd.Size == 0) return SZ_ERROR_ARCHIVE; sd.Size--; dest = *sd.Data++; - -#define SKIP_DATA(sd, size) { sd->Size -= (size_t)(size); sd->Data += (size_t)(size); } -#define SKIP_DATA2(sd, size) { sd.Size -= (size_t)(size); sd.Data += (size_t)(size); } - -#define SZ_READ_32(dest) if (sd.Size < 4) return SZ_ERROR_ARCHIVE; \ - dest = GetUi32(sd.Data); SKIP_DATA2(sd, 4); - -static MY_NO_INLINE SRes ReadNumber(CSzData *sd, UInt64 *value) -{ - Byte firstByte, mask; - unsigned i; - UInt32 v; - - SZ_READ_BYTE(firstByte); - if ((firstByte & 0x80) == 0) - { - *value = firstByte; - return SZ_OK; - } - SZ_READ_BYTE(v); - if ((firstByte & 0x40) == 0) - { - *value = (((UInt32)firstByte & 0x3F) << 8) | v; - return SZ_OK; - } - SZ_READ_BYTE(mask); - *value = v | ((UInt32)mask << 8); - mask = 0x20; - for (i = 2; i < 8; i++) - { - Byte b; - if ((firstByte & mask) == 0) - { - UInt64 highPart = (unsigned)firstByte & (unsigned)(mask - 1); - *value |= (highPart << (8 * i)); - return SZ_OK; - } - SZ_READ_BYTE(b); - *value |= ((UInt64)b << (8 * i)); - mask >>= 1; - } - return SZ_OK; -} - - -static MY_NO_INLINE SRes SzReadNumber32(CSzData *sd, UInt32 *value) -{ - Byte firstByte; - UInt64 value64; - if (sd->Size == 0) - return SZ_ERROR_ARCHIVE; - firstByte = *sd->Data; - if ((firstByte & 0x80) == 0) - { - *value = firstByte; - sd->Data++; - sd->Size--; - return SZ_OK; - } - RINOK(ReadNumber(sd, &value64)); - if (value64 >= (UInt32)0x80000000 - 1) - return SZ_ERROR_UNSUPPORTED; - if (value64 >= ((UInt64)(1) << ((sizeof(size_t) - 1) * 8 + 4))) - return SZ_ERROR_UNSUPPORTED; - *value = (UInt32)value64; - return SZ_OK; -} - -#define ReadID(sd, value) ReadNumber(sd, value) - -static SRes SkipData(CSzData *sd) -{ - UInt64 size; - RINOK(ReadNumber(sd, &size)); - if (size > sd->Size) - return SZ_ERROR_ARCHIVE; - SKIP_DATA(sd, size); - return SZ_OK; -} - -static SRes WaitId(CSzData *sd, UInt32 id) -{ - for (;;) - { - UInt64 type; - RINOK(ReadID(sd, &type)); - if (type == id) - return SZ_OK; - if (type == k7zIdEnd) - return SZ_ERROR_ARCHIVE; - RINOK(SkipData(sd)); - } -} - -static SRes RememberBitVector(CSzData *sd, UInt32 numItems, const Byte **v) -{ - UInt32 numBytes = (numItems + 7) >> 3; - if (numBytes > sd->Size) - return SZ_ERROR_ARCHIVE; - *v = sd->Data; - SKIP_DATA(sd, numBytes); - return SZ_OK; -} - -static UInt32 CountDefinedBits(const Byte *bits, UInt32 numItems) -{ - Byte b = 0; - unsigned m = 0; - UInt32 sum = 0; - for (; numItems != 0; numItems--) - { - if (m == 0) - { - b = *bits++; - m = 8; - } - m--; - sum += ((b >> m) & 1); - } - return sum; -} - -static MY_NO_INLINE SRes ReadBitVector(CSzData *sd, UInt32 numItems, Byte **v, ISzAlloc *alloc) -{ - Byte allAreDefined; - Byte *v2; - UInt32 numBytes = (numItems + 7) >> 3; - *v = NULL; - SZ_READ_BYTE(allAreDefined); - if (numBytes == 0) - return SZ_OK; - if (allAreDefined == 0) - { - if (numBytes > sd->Size) - return SZ_ERROR_ARCHIVE; - MY_ALLOC_AND_CPY(*v, numBytes, sd->Data, alloc); - SKIP_DATA(sd, numBytes); - return SZ_OK; - } - MY_ALLOC(Byte, *v, numBytes, alloc); - v2 = *v; - memset(v2, 0xFF, (size_t)numBytes); - { - unsigned numBits = (unsigned)numItems & 7; - if (numBits != 0) - v2[numBytes - 1] = (Byte)((((UInt32)1 << numBits) - 1) << (8 - numBits)); - } - return SZ_OK; -} - -static MY_NO_INLINE SRes ReadUi32s(CSzData *sd2, UInt32 numItems, CSzBitUi32s *crcs, ISzAlloc *alloc) -{ - UInt32 i; - CSzData sd; - UInt32 *vals; - const Byte *defs; - MY_ALLOC_ZE(UInt32, crcs->Vals, numItems, alloc); - sd = *sd2; - defs = crcs->Defs; - vals = crcs->Vals; - for (i = 0; i < numItems; i++) - if (SzBitArray_Check(defs, i)) - { - SZ_READ_32(vals[i]); - } - else - vals[i] = 0; - *sd2 = sd; - return SZ_OK; -} - -static SRes ReadBitUi32s(CSzData *sd, UInt32 numItems, CSzBitUi32s *crcs, ISzAlloc *alloc) -{ - SzBitUi32s_Free(crcs, alloc); - RINOK(ReadBitVector(sd, numItems, &crcs->Defs, alloc)); - return ReadUi32s(sd, numItems, crcs, alloc); -} - -static SRes SkipBitUi32s(CSzData *sd, UInt32 numItems) -{ - Byte allAreDefined; - UInt32 numDefined = numItems; - SZ_READ_BYTE(allAreDefined); - if (!allAreDefined) - { - size_t numBytes = (numItems + 7) >> 3; - if (numBytes > sd->Size) - return SZ_ERROR_ARCHIVE; - numDefined = CountDefinedBits(sd->Data, numItems); - SKIP_DATA(sd, numBytes); - } - if (numDefined > (sd->Size >> 2)) - return SZ_ERROR_ARCHIVE; - SKIP_DATA(sd, (size_t)numDefined * 4); - return SZ_OK; -} - -static SRes ReadPackInfo(CSzAr *p, CSzData *sd, ISzAlloc *alloc) -{ - RINOK(SzReadNumber32(sd, &p->NumPackStreams)); - - RINOK(WaitId(sd, k7zIdSize)); - MY_ALLOC(UInt64, p->PackPositions, (size_t)p->NumPackStreams + 1, alloc); - { - UInt64 sum = 0; - UInt32 i; - UInt32 numPackStreams = p->NumPackStreams; - for (i = 0; i < numPackStreams; i++) - { - UInt64 packSize; - p->PackPositions[i] = sum; - RINOK(ReadNumber(sd, &packSize)); - sum += packSize; - if (sum < packSize) - return SZ_ERROR_ARCHIVE; - } - p->PackPositions[i] = sum; - } - - for (;;) - { - UInt64 type; - RINOK(ReadID(sd, &type)); - if (type == k7zIdEnd) - return SZ_OK; - if (type == k7zIdCRC) - { - /* CRC of packed streams is unused now */ - RINOK(SkipBitUi32s(sd, p->NumPackStreams)); - continue; - } - RINOK(SkipData(sd)); - } -} - -/* -static SRes SzReadSwitch(CSzData *sd) -{ - Byte external; - RINOK(SzReadByte(sd, &external)); - return (external == 0) ? SZ_OK: SZ_ERROR_UNSUPPORTED; -} -*/ - -#define k_NumCodersStreams_in_Folder_MAX (SZ_NUM_BONDS_IN_FOLDER_MAX + SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX) - -static SRes SzGetNextFolderItem(CSzFolder *f, CSzData *sd) -{ - UInt32 numCoders, i; - UInt32 numInStreams = 0; - const Byte *dataStart = sd->Data; - - f->NumCoders = 0; - f->NumBonds = 0; - f->NumPackStreams = 0; - f->UnpackStream = 0; - - RINOK(SzReadNumber32(sd, &numCoders)); - if (numCoders == 0 || numCoders > SZ_NUM_CODERS_IN_FOLDER_MAX) - return SZ_ERROR_UNSUPPORTED; - - for (i = 0; i < numCoders; i++) - { - Byte mainByte; - CSzCoderInfo *coder = f->Coders + i; - unsigned idSize, j; - UInt64 id; - - SZ_READ_BYTE(mainByte); - if ((mainByte & 0xC0) != 0) - return SZ_ERROR_UNSUPPORTED; - - idSize = (unsigned)(mainByte & 0xF); - if (idSize > sizeof(id)) - return SZ_ERROR_UNSUPPORTED; - if (idSize > sd->Size) - return SZ_ERROR_ARCHIVE; - id = 0; - for (j = 0; j < idSize; j++) - { - id = ((id << 8) | *sd->Data); - sd->Data++; - sd->Size--; - } - if (id > UINT64_CONST(0xFFFFFFFF)) - return SZ_ERROR_UNSUPPORTED; - coder->MethodID = (UInt32)id; - - coder->NumStreams = 1; - coder->PropsOffset = 0; - coder->PropsSize = 0; - - if ((mainByte & 0x10) != 0) - { - UInt32 numStreams; - - RINOK(SzReadNumber32(sd, &numStreams)); - if (numStreams > k_NumCodersStreams_in_Folder_MAX) - return SZ_ERROR_UNSUPPORTED; - coder->NumStreams = (Byte)numStreams; - - RINOK(SzReadNumber32(sd, &numStreams)); - if (numStreams != 1) - return SZ_ERROR_UNSUPPORTED; - } - - numInStreams += coder->NumStreams; - - if (numInStreams > k_NumCodersStreams_in_Folder_MAX) - return SZ_ERROR_UNSUPPORTED; - - if ((mainByte & 0x20) != 0) - { - UInt32 propsSize = 0; - RINOK(SzReadNumber32(sd, &propsSize)); - if (propsSize > sd->Size) - return SZ_ERROR_ARCHIVE; - if (propsSize >= 0x80) - return SZ_ERROR_UNSUPPORTED; - coder->PropsOffset = sd->Data - dataStart; - coder->PropsSize = (Byte)propsSize; - sd->Data += (size_t)propsSize; - sd->Size -= (size_t)propsSize; - } - } - - /* - if (numInStreams == 1 && numCoders == 1) - { - f->NumPackStreams = 1; - f->PackStreams[0] = 0; - } - else - */ - { - Byte streamUsed[k_NumCodersStreams_in_Folder_MAX]; - UInt32 numBonds, numPackStreams; - - numBonds = numCoders - 1; - if (numInStreams < numBonds) - return SZ_ERROR_ARCHIVE; - if (numBonds > SZ_NUM_BONDS_IN_FOLDER_MAX) - return SZ_ERROR_UNSUPPORTED; - f->NumBonds = numBonds; - - numPackStreams = numInStreams - numBonds; - if (numPackStreams > SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX) - return SZ_ERROR_UNSUPPORTED; - f->NumPackStreams = numPackStreams; - - for (i = 0; i < numInStreams; i++) - streamUsed[i] = False; - - if (numBonds != 0) - { - Byte coderUsed[SZ_NUM_CODERS_IN_FOLDER_MAX]; - - for (i = 0; i < numCoders; i++) - coderUsed[i] = False; - - for (i = 0; i < numBonds; i++) - { - CSzBond *bp = f->Bonds + i; - - RINOK(SzReadNumber32(sd, &bp->InIndex)); - if (bp->InIndex >= numInStreams || streamUsed[bp->InIndex]) - return SZ_ERROR_ARCHIVE; - streamUsed[bp->InIndex] = True; - - RINOK(SzReadNumber32(sd, &bp->OutIndex)); - if (bp->OutIndex >= numCoders || coderUsed[bp->OutIndex]) - return SZ_ERROR_ARCHIVE; - coderUsed[bp->OutIndex] = True; - } - - for (i = 0; i < numCoders; i++) - if (!coderUsed[i]) - { - f->UnpackStream = i; - break; - } - - if (i == numCoders) - return SZ_ERROR_ARCHIVE; - } - - if (numPackStreams == 1) - { - for (i = 0; i < numInStreams; i++) - if (!streamUsed[i]) - break; - if (i == numInStreams) - return SZ_ERROR_ARCHIVE; - f->PackStreams[0] = i; - } - else - for (i = 0; i < numPackStreams; i++) - { - UInt32 index; - RINOK(SzReadNumber32(sd, &index)); - if (index >= numInStreams || streamUsed[index]) - return SZ_ERROR_ARCHIVE; - streamUsed[index] = True; - f->PackStreams[i] = index; - } - } - - f->NumCoders = numCoders; - - return SZ_OK; -} - - -static MY_NO_INLINE SRes SkipNumbers(CSzData *sd2, UInt32 num) -{ - CSzData sd; - sd = *sd2; - for (; num != 0; num--) - { - Byte firstByte, mask; - unsigned i; - SZ_READ_BYTE_2(firstByte); - if ((firstByte & 0x80) == 0) - continue; - if ((firstByte & 0x40) == 0) - { - if (sd.Size == 0) - return SZ_ERROR_ARCHIVE; - sd.Size--; - sd.Data++; - continue; - } - mask = 0x20; - for (i = 2; i < 8 && (firstByte & mask) != 0; i++) - mask >>= 1; - if (i > sd.Size) - return SZ_ERROR_ARCHIVE; - SKIP_DATA2(sd, i); - } - *sd2 = sd; - return SZ_OK; -} - - -#define k_Scan_NumCoders_MAX 64 -#define k_Scan_NumCodersStreams_in_Folder_MAX 64 - - -static SRes ReadUnpackInfo(CSzAr *p, - CSzData *sd2, - UInt32 numFoldersMax, - const CBuf *tempBufs, UInt32 numTempBufs, - ISzAlloc *alloc) -{ - CSzData sd; - - UInt32 fo, numFolders, numCodersOutStreams, packStreamIndex; - const Byte *startBufPtr; - Byte external; - - RINOK(WaitId(sd2, k7zIdFolder)); - - RINOK(SzReadNumber32(sd2, &numFolders)); - if (numFolders > numFoldersMax) - return SZ_ERROR_UNSUPPORTED; - p->NumFolders = numFolders; - - SZ_READ_BYTE_SD(sd2, external); - if (external == 0) - sd = *sd2; - else - { - UInt32 index; - RINOK(SzReadNumber32(sd2, &index)); - if (index >= numTempBufs) - return SZ_ERROR_ARCHIVE; - sd.Data = tempBufs[index].data; - sd.Size = tempBufs[index].size; - } - - MY_ALLOC(size_t, p->FoCodersOffsets, (size_t)numFolders + 1, alloc); - MY_ALLOC(UInt32, p->FoStartPackStreamIndex, (size_t)numFolders + 1, alloc); - MY_ALLOC(UInt32, p->FoToCoderUnpackSizes, (size_t)numFolders + 1, alloc); - MY_ALLOC(Byte, p->FoToMainUnpackSizeIndex, (size_t)numFolders, alloc); - - startBufPtr = sd.Data; - - packStreamIndex = 0; - numCodersOutStreams = 0; - - for (fo = 0; fo < numFolders; fo++) - { - UInt32 numCoders, ci, numInStreams = 0; - - p->FoCodersOffsets[fo] = sd.Data - startBufPtr; - - RINOK(SzReadNumber32(&sd, &numCoders)); - if (numCoders == 0 || numCoders > k_Scan_NumCoders_MAX) - return SZ_ERROR_UNSUPPORTED; - - for (ci = 0; ci < numCoders; ci++) - { - Byte mainByte; - unsigned idSize; - UInt32 coderInStreams; - - SZ_READ_BYTE_2(mainByte); - if ((mainByte & 0xC0) != 0) - return SZ_ERROR_UNSUPPORTED; - idSize = (mainByte & 0xF); - if (idSize > 8) - return SZ_ERROR_UNSUPPORTED; - if (idSize > sd.Size) - return SZ_ERROR_ARCHIVE; - SKIP_DATA2(sd, idSize); - - coderInStreams = 1; - - if ((mainByte & 0x10) != 0) - { - UInt32 coderOutStreams; - RINOK(SzReadNumber32(&sd, &coderInStreams)); - RINOK(SzReadNumber32(&sd, &coderOutStreams)); - if (coderInStreams > k_Scan_NumCodersStreams_in_Folder_MAX || coderOutStreams != 1) - return SZ_ERROR_UNSUPPORTED; - } - - numInStreams += coderInStreams; - - if ((mainByte & 0x20) != 0) - { - UInt32 propsSize; - RINOK(SzReadNumber32(&sd, &propsSize)); - if (propsSize > sd.Size) - return SZ_ERROR_ARCHIVE; - SKIP_DATA2(sd, propsSize); - } - } - - { - UInt32 indexOfMainStream = 0; - UInt32 numPackStreams = 1; - - if (numCoders != 1 || numInStreams != 1) - { - Byte streamUsed[k_Scan_NumCodersStreams_in_Folder_MAX]; - Byte coderUsed[k_Scan_NumCoders_MAX]; - - UInt32 i; - UInt32 numBonds = numCoders - 1; - if (numInStreams < numBonds) - return SZ_ERROR_ARCHIVE; - - if (numInStreams > k_Scan_NumCodersStreams_in_Folder_MAX) - return SZ_ERROR_UNSUPPORTED; - - for (i = 0; i < numInStreams; i++) - streamUsed[i] = False; - for (i = 0; i < numCoders; i++) - coderUsed[i] = False; - - for (i = 0; i < numBonds; i++) - { - UInt32 index; - - RINOK(SzReadNumber32(&sd, &index)); - if (index >= numInStreams || streamUsed[index]) - return SZ_ERROR_ARCHIVE; - streamUsed[index] = True; - - RINOK(SzReadNumber32(&sd, &index)); - if (index >= numCoders || coderUsed[index]) - return SZ_ERROR_ARCHIVE; - coderUsed[index] = True; - } - - numPackStreams = numInStreams - numBonds; - - if (numPackStreams != 1) - for (i = 0; i < numPackStreams; i++) - { - UInt32 index; - RINOK(SzReadNumber32(&sd, &index)); - if (index >= numInStreams || streamUsed[index]) - return SZ_ERROR_ARCHIVE; - streamUsed[index] = True; - } - - for (i = 0; i < numCoders; i++) - if (!coderUsed[i]) - { - indexOfMainStream = i; - break; - } - - if (i == numCoders) - return SZ_ERROR_ARCHIVE; - } - - p->FoStartPackStreamIndex[fo] = packStreamIndex; - p->FoToCoderUnpackSizes[fo] = numCodersOutStreams; - p->FoToMainUnpackSizeIndex[fo] = (Byte)indexOfMainStream; - numCodersOutStreams += numCoders; - if (numCodersOutStreams < numCoders) - return SZ_ERROR_UNSUPPORTED; - if (numPackStreams > p->NumPackStreams - packStreamIndex) - return SZ_ERROR_ARCHIVE; - packStreamIndex += numPackStreams; - } - } - - p->FoToCoderUnpackSizes[fo] = numCodersOutStreams; - - { - size_t dataSize = sd.Data - startBufPtr; - p->FoStartPackStreamIndex[fo] = packStreamIndex; - p->FoCodersOffsets[fo] = dataSize; - MY_ALLOC_ZE_AND_CPY(p->CodersData, dataSize, startBufPtr, alloc); - } - - if (external != 0) - { - if (sd.Size != 0) - return SZ_ERROR_ARCHIVE; - sd = *sd2; - } - - RINOK(WaitId(&sd, k7zIdCodersUnpackSize)); - - MY_ALLOC_ZE(UInt64, p->CoderUnpackSizes, (size_t)numCodersOutStreams, alloc); - { - UInt32 i; - for (i = 0; i < numCodersOutStreams; i++) - { - RINOK(ReadNumber(&sd, p->CoderUnpackSizes + i)); - } - } - - for (;;) - { - UInt64 type; - RINOK(ReadID(&sd, &type)); - if (type == k7zIdEnd) - { - *sd2 = sd; - return SZ_OK; - } - if (type == k7zIdCRC) - { - RINOK(ReadBitUi32s(&sd, numFolders, &p->FolderCRCs, alloc)); - continue; - } - RINOK(SkipData(&sd)); - } -} - - -static UInt64 SzAr_GetFolderUnpackSize(const CSzAr *p, UInt32 folderIndex) -{ - return p->CoderUnpackSizes[p->FoToCoderUnpackSizes[folderIndex] + p->FoToMainUnpackSizeIndex[folderIndex]]; -} - - -typedef struct -{ - UInt32 NumTotalSubStreams; - UInt32 NumSubDigests; - CSzData sdNumSubStreams; - CSzData sdSizes; - CSzData sdCRCs; -} CSubStreamInfo; - - -static SRes ReadSubStreamsInfo(CSzAr *p, CSzData *sd, CSubStreamInfo *ssi) -{ - UInt64 type = 0; - UInt32 numSubDigests = 0; - UInt32 numFolders = p->NumFolders; - UInt32 numUnpackStreams = numFolders; - UInt32 numUnpackSizesInData = 0; - - for (;;) - { - RINOK(ReadID(sd, &type)); - if (type == k7zIdNumUnpackStream) - { - UInt32 i; - ssi->sdNumSubStreams.Data = sd->Data; - numUnpackStreams = 0; - numSubDigests = 0; - for (i = 0; i < numFolders; i++) - { - UInt32 numStreams; - RINOK(SzReadNumber32(sd, &numStreams)); - if (numUnpackStreams > numUnpackStreams + numStreams) - return SZ_ERROR_UNSUPPORTED; - numUnpackStreams += numStreams; - if (numStreams != 0) - numUnpackSizesInData += (numStreams - 1); - if (numStreams != 1 || !SzBitWithVals_Check(&p->FolderCRCs, i)) - numSubDigests += numStreams; - } - ssi->sdNumSubStreams.Size = sd->Data - ssi->sdNumSubStreams.Data; - continue; - } - if (type == k7zIdCRC || type == k7zIdSize || type == k7zIdEnd) - break; - RINOK(SkipData(sd)); - } - - if (!ssi->sdNumSubStreams.Data) - { - numSubDigests = numFolders; - if (p->FolderCRCs.Defs) - numSubDigests = numFolders - CountDefinedBits(p->FolderCRCs.Defs, numFolders); - } - - ssi->NumTotalSubStreams = numUnpackStreams; - ssi->NumSubDigests = numSubDigests; - - if (type == k7zIdSize) - { - ssi->sdSizes.Data = sd->Data; - RINOK(SkipNumbers(sd, numUnpackSizesInData)); - ssi->sdSizes.Size = sd->Data - ssi->sdSizes.Data; - RINOK(ReadID(sd, &type)); - } - - for (;;) - { - if (type == k7zIdEnd) - return SZ_OK; - if (type == k7zIdCRC) - { - ssi->sdCRCs.Data = sd->Data; - RINOK(SkipBitUi32s(sd, numSubDigests)); - ssi->sdCRCs.Size = sd->Data - ssi->sdCRCs.Data; - } - else - { - RINOK(SkipData(sd)); - } - RINOK(ReadID(sd, &type)); - } -} - -static SRes SzReadStreamsInfo(CSzAr *p, - CSzData *sd, - UInt32 numFoldersMax, const CBuf *tempBufs, UInt32 numTempBufs, - UInt64 *dataOffset, - CSubStreamInfo *ssi, - ISzAlloc *alloc) -{ - UInt64 type; - - SzData_Clear(&ssi->sdSizes); - SzData_Clear(&ssi->sdCRCs); - SzData_Clear(&ssi->sdNumSubStreams); - - *dataOffset = 0; - RINOK(ReadID(sd, &type)); - if (type == k7zIdPackInfo) - { - RINOK(ReadNumber(sd, dataOffset)); - RINOK(ReadPackInfo(p, sd, alloc)); - RINOK(ReadID(sd, &type)); - } - if (type == k7zIdUnpackInfo) - { - RINOK(ReadUnpackInfo(p, sd, numFoldersMax, tempBufs, numTempBufs, alloc)); - RINOK(ReadID(sd, &type)); - } - if (type == k7zIdSubStreamsInfo) - { - RINOK(ReadSubStreamsInfo(p, sd, ssi)); - RINOK(ReadID(sd, &type)); - } - else - { - ssi->NumTotalSubStreams = p->NumFolders; - /* ssi->NumSubDigests = 0; */ - } - - return (type == k7zIdEnd ? SZ_OK : SZ_ERROR_UNSUPPORTED); -} - -static SRes SzReadAndDecodePackedStreams( - ILookInStream *inStream, - CSzData *sd, - CBuf *tempBufs, - UInt32 numFoldersMax, - UInt64 baseOffset, - CSzAr *p, - ISzAlloc *allocTemp) -{ - UInt64 dataStartPos = 0; - UInt32 fo; - CSubStreamInfo ssi; - UInt32 numFolders; - - RINOK(SzReadStreamsInfo(p, sd, numFoldersMax, NULL, 0, &dataStartPos, &ssi, allocTemp)); - - numFolders = p->NumFolders; - if (numFolders == 0) - return SZ_ERROR_ARCHIVE; - else if (numFolders > numFoldersMax) - return SZ_ERROR_UNSUPPORTED; - - dataStartPos += baseOffset; - - for (fo = 0; fo < numFolders; fo++) - Buf_Init(tempBufs + fo); - - for (fo = 0; fo < numFolders; fo++) - { - CBuf *tempBuf = tempBufs + fo; - UInt64 unpackSize = SzAr_GetFolderUnpackSize(p, fo); - if ((size_t)unpackSize != unpackSize) - return SZ_ERROR_MEM; - if (!Buf_Create(tempBuf, (size_t)unpackSize, allocTemp)) - return SZ_ERROR_MEM; - } - - for (fo = 0; fo < numFolders; fo++) - { - const CBuf *tempBuf = tempBufs + fo; - RINOK(LookInStream_SeekTo(inStream, dataStartPos)); - RINOK(SzAr_DecodeFolder(p, fo, inStream, dataStartPos, tempBuf->data, tempBuf->size, allocTemp)); - } - - return SZ_OK; -} - -static SRes SzReadFileNames(const Byte *data, size_t size, UInt32 numFiles, size_t *offsets) -{ - size_t pos = 0; - *offsets++ = 0; - if (numFiles == 0) - return (size == 0) ? SZ_OK : SZ_ERROR_ARCHIVE; - if (size < 2) - return SZ_ERROR_ARCHIVE; - if (data[size - 2] != 0 || data[size - 1] != 0) - return SZ_ERROR_ARCHIVE; - do - { - const Byte *p; - if (pos == size) - return SZ_ERROR_ARCHIVE; - for (p = data + pos; - #ifdef _WIN32 - *(const UInt16 *)p != 0 - #else - p[0] != 0 || p[1] != 0 - #endif - ; p += 2); - pos = p - data + 2; - *offsets++ = (pos >> 1); - } - while (--numFiles); - return (pos == size) ? SZ_OK : SZ_ERROR_ARCHIVE; -} - -static MY_NO_INLINE SRes ReadTime(CSzBitUi64s *p, UInt32 num, - CSzData *sd2, - const CBuf *tempBufs, UInt32 numTempBufs, - ISzAlloc *alloc) -{ - CSzData sd; - UInt32 i; - CNtfsFileTime *vals; - Byte *defs; - Byte external; - - RINOK(ReadBitVector(sd2, num, &p->Defs, alloc)); - - SZ_READ_BYTE_SD(sd2, external); - if (external == 0) - sd = *sd2; - else - { - UInt32 index; - RINOK(SzReadNumber32(sd2, &index)); - if (index >= numTempBufs) - return SZ_ERROR_ARCHIVE; - sd.Data = tempBufs[index].data; - sd.Size = tempBufs[index].size; - } - - MY_ALLOC_ZE(CNtfsFileTime, p->Vals, num, alloc); - vals = p->Vals; - defs = p->Defs; - for (i = 0; i < num; i++) - if (SzBitArray_Check(defs, i)) - { - if (sd.Size < 8) - return SZ_ERROR_ARCHIVE; - vals[i].Low = GetUi32(sd.Data); - vals[i].High = GetUi32(sd.Data + 4); - SKIP_DATA2(sd, 8); - } - else - vals[i].High = vals[i].Low = 0; - - if (external == 0) - *sd2 = sd; - - return SZ_OK; -} - - -#define NUM_ADDITIONAL_STREAMS_MAX 8 - - -static SRes SzReadHeader2( - CSzArEx *p, /* allocMain */ - CSzData *sd, - ILookInStream *inStream, - CBuf *tempBufs, UInt32 *numTempBufs, - ISzAlloc *allocMain, - ISzAlloc *allocTemp - ) -{ - CSubStreamInfo ssi; - -{ - UInt64 type; - - SzData_Clear(&ssi.sdSizes); - SzData_Clear(&ssi.sdCRCs); - SzData_Clear(&ssi.sdNumSubStreams); - - ssi.NumSubDigests = 0; - ssi.NumTotalSubStreams = 0; - - RINOK(ReadID(sd, &type)); - - if (type == k7zIdArchiveProperties) - { - for (;;) - { - UInt64 type2; - RINOK(ReadID(sd, &type2)); - if (type2 == k7zIdEnd) - break; - RINOK(SkipData(sd)); - } - RINOK(ReadID(sd, &type)); - } - - if (type == k7zIdAdditionalStreamsInfo) - { - CSzAr tempAr; - SRes res; - - SzAr_Init(&tempAr); - res = SzReadAndDecodePackedStreams(inStream, sd, tempBufs, NUM_ADDITIONAL_STREAMS_MAX, - p->startPosAfterHeader, &tempAr, allocTemp); - *numTempBufs = tempAr.NumFolders; - SzAr_Free(&tempAr, allocTemp); - - if (res != SZ_OK) - return res; - RINOK(ReadID(sd, &type)); - } - - if (type == k7zIdMainStreamsInfo) - { - RINOK(SzReadStreamsInfo(&p->db, sd, (UInt32)1 << 30, tempBufs, *numTempBufs, - &p->dataPos, &ssi, allocMain)); - p->dataPos += p->startPosAfterHeader; - RINOK(ReadID(sd, &type)); - } - - if (type == k7zIdEnd) - { - return SZ_OK; - } - - if (type != k7zIdFilesInfo) - return SZ_ERROR_ARCHIVE; -} - -{ - UInt32 numFiles = 0; - UInt32 numEmptyStreams = 0; - const Byte *emptyStreams = NULL; - const Byte *emptyFiles = NULL; - - RINOK(SzReadNumber32(sd, &numFiles)); - p->NumFiles = numFiles; - - for (;;) - { - UInt64 type; - UInt64 size; - RINOK(ReadID(sd, &type)); - if (type == k7zIdEnd) - break; - RINOK(ReadNumber(sd, &size)); - if (size > sd->Size) - return SZ_ERROR_ARCHIVE; - - if (type >= ((UInt32)1 << 8)) - { - SKIP_DATA(sd, size); - } - else switch ((unsigned)type) - { - case k7zIdName: - { - size_t namesSize; - const Byte *namesData; - Byte external; - - SZ_READ_BYTE(external); - if (external == 0) - { - namesSize = (size_t)size - 1; - namesData = sd->Data; - } - else - { - UInt32 index; - RINOK(SzReadNumber32(sd, &index)); - if (index >= *numTempBufs) - return SZ_ERROR_ARCHIVE; - namesData = (tempBufs)[index].data; - namesSize = (tempBufs)[index].size; - } - - if ((namesSize & 1) != 0) - return SZ_ERROR_ARCHIVE; - MY_ALLOC(size_t, p->FileNameOffsets, numFiles + 1, allocMain); - MY_ALLOC_ZE_AND_CPY(p->FileNames, namesSize, namesData, allocMain); - RINOK(SzReadFileNames(p->FileNames, namesSize, numFiles, p->FileNameOffsets)) - if (external == 0) - { - SKIP_DATA(sd, namesSize); - } - break; - } - case k7zIdEmptyStream: - { - RINOK(RememberBitVector(sd, numFiles, &emptyStreams)); - numEmptyStreams = CountDefinedBits(emptyStreams, numFiles); - emptyFiles = NULL; - break; - } - case k7zIdEmptyFile: - { - RINOK(RememberBitVector(sd, numEmptyStreams, &emptyFiles)); - break; - } - case k7zIdWinAttrib: - { - Byte external; - CSzData sdSwitch; - CSzData *sdPtr; - SzBitUi32s_Free(&p->Attribs, allocMain); - RINOK(ReadBitVector(sd, numFiles, &p->Attribs.Defs, allocMain)); - - SZ_READ_BYTE(external); - if (external == 0) - sdPtr = sd; - else - { - UInt32 index; - RINOK(SzReadNumber32(sd, &index)); - if (index >= *numTempBufs) - return SZ_ERROR_ARCHIVE; - sdSwitch.Data = (tempBufs)[index].data; - sdSwitch.Size = (tempBufs)[index].size; - sdPtr = &sdSwitch; - } - RINOK(ReadUi32s(sdPtr, numFiles, &p->Attribs, allocMain)); - break; - } - /* - case k7zParent: - { - SzBitUi32s_Free(&p->Parents, allocMain); - RINOK(ReadBitVector(sd, numFiles, &p->Parents.Defs, allocMain)); - RINOK(SzReadSwitch(sd)); - RINOK(ReadUi32s(sd, numFiles, &p->Parents, allocMain)); - break; - } - */ - case k7zIdMTime: RINOK(ReadTime(&p->MTime, numFiles, sd, tempBufs, *numTempBufs, allocMain)); break; - case k7zIdCTime: RINOK(ReadTime(&p->CTime, numFiles, sd, tempBufs, *numTempBufs, allocMain)); break; - default: - { - SKIP_DATA(sd, size); - } - } - } - - if (numFiles - numEmptyStreams != ssi.NumTotalSubStreams) - return SZ_ERROR_ARCHIVE; - - for (;;) - { - UInt64 type; - RINOK(ReadID(sd, &type)); - if (type == k7zIdEnd) - break; - RINOK(SkipData(sd)); - } - - { - UInt32 i; - UInt32 emptyFileIndex = 0; - UInt32 folderIndex = 0; - UInt32 remSubStreams = 0; - UInt32 numSubStreams = 0; - UInt64 unpackPos = 0; - const Byte *digestsDefs = NULL; - const Byte *digestsVals = NULL; - UInt32 digestsValsIndex = 0; - UInt32 digestIndex; - Byte allDigestsDefined = 0; - Byte isDirMask = 0; - Byte crcMask = 0; - Byte mask = 0x80; - - MY_ALLOC(UInt32, p->FolderToFile, p->db.NumFolders + 1, allocMain); - MY_ALLOC_ZE(UInt32, p->FileToFolder, p->NumFiles, allocMain); - MY_ALLOC(UInt64, p->UnpackPositions, p->NumFiles + 1, allocMain); - MY_ALLOC_ZE(Byte, p->IsDirs, (p->NumFiles + 7) >> 3, allocMain); - - RINOK(SzBitUi32s_Alloc(&p->CRCs, p->NumFiles, allocMain)); - - if (ssi.sdCRCs.Size != 0) - { - SZ_READ_BYTE_SD(&ssi.sdCRCs, allDigestsDefined); - if (allDigestsDefined) - digestsVals = ssi.sdCRCs.Data; - else - { - size_t numBytes = (ssi.NumSubDigests + 7) >> 3; - digestsDefs = ssi.sdCRCs.Data; - digestsVals = digestsDefs + numBytes; - } - } - - digestIndex = 0; - - for (i = 0; i < numFiles; i++, mask >>= 1) - { - if (mask == 0) - { - UInt32 byteIndex = (i - 1) >> 3; - p->IsDirs[byteIndex] = isDirMask; - p->CRCs.Defs[byteIndex] = crcMask; - isDirMask = 0; - crcMask = 0; - mask = 0x80; - } - - p->UnpackPositions[i] = unpackPos; - p->CRCs.Vals[i] = 0; - - if (emptyStreams && SzBitArray_Check(emptyStreams, i)) - { - if (emptyFiles) - { - if (!SzBitArray_Check(emptyFiles, emptyFileIndex)) - isDirMask |= mask; - emptyFileIndex++; - } - else - isDirMask |= mask; - if (remSubStreams == 0) - { - p->FileToFolder[i] = (UInt32)-1; - continue; - } - } - - if (remSubStreams == 0) - { - for (;;) - { - if (folderIndex >= p->db.NumFolders) - return SZ_ERROR_ARCHIVE; - p->FolderToFile[folderIndex] = i; - numSubStreams = 1; - if (ssi.sdNumSubStreams.Data) - { - RINOK(SzReadNumber32(&ssi.sdNumSubStreams, &numSubStreams)); - } - remSubStreams = numSubStreams; - if (numSubStreams != 0) - break; - { - UInt64 folderUnpackSize = SzAr_GetFolderUnpackSize(&p->db, folderIndex); - unpackPos += folderUnpackSize; - if (unpackPos < folderUnpackSize) - return SZ_ERROR_ARCHIVE; - } - - folderIndex++; - } - } - - p->FileToFolder[i] = folderIndex; - - if (emptyStreams && SzBitArray_Check(emptyStreams, i)) - continue; - - if (--remSubStreams == 0) - { - UInt64 folderUnpackSize = SzAr_GetFolderUnpackSize(&p->db, folderIndex); - UInt64 startFolderUnpackPos = p->UnpackPositions[p->FolderToFile[folderIndex]]; - if (folderUnpackSize < unpackPos - startFolderUnpackPos) - return SZ_ERROR_ARCHIVE; - unpackPos = startFolderUnpackPos + folderUnpackSize; - if (unpackPos < folderUnpackSize) - return SZ_ERROR_ARCHIVE; - - if (numSubStreams == 1 && SzBitWithVals_Check(&p->db.FolderCRCs, i)) - { - p->CRCs.Vals[i] = p->db.FolderCRCs.Vals[folderIndex]; - crcMask |= mask; - } - else if (allDigestsDefined || (digestsDefs && SzBitArray_Check(digestsDefs, digestIndex))) - { - p->CRCs.Vals[i] = GetUi32(digestsVals + (size_t)digestsValsIndex * 4); - digestsValsIndex++; - crcMask |= mask; - } - - folderIndex++; - } - else - { - UInt64 v; - RINOK(ReadNumber(&ssi.sdSizes, &v)); - unpackPos += v; - if (unpackPos < v) - return SZ_ERROR_ARCHIVE; - if (allDigestsDefined || (digestsDefs && SzBitArray_Check(digestsDefs, digestIndex))) - { - p->CRCs.Vals[i] = GetUi32(digestsVals + (size_t)digestsValsIndex * 4); - digestsValsIndex++; - crcMask |= mask; - } - } - } - - if (mask != 0x80) - { - UInt32 byteIndex = (i - 1) >> 3; - p->IsDirs[byteIndex] = isDirMask; - p->CRCs.Defs[byteIndex] = crcMask; - } - - p->UnpackPositions[i] = unpackPos; - - if (remSubStreams != 0) - return SZ_ERROR_ARCHIVE; - - for (;;) - { - p->FolderToFile[folderIndex] = i; - if (folderIndex >= p->db.NumFolders) - break; - if (!ssi.sdNumSubStreams.Data) - return SZ_ERROR_ARCHIVE; - RINOK(SzReadNumber32(&ssi.sdNumSubStreams, &numSubStreams)); - if (numSubStreams != 0) - return SZ_ERROR_ARCHIVE; - /* - { - UInt64 folderUnpackSize = SzAr_GetFolderUnpackSize(&p->db, folderIndex); - unpackPos += folderUnpackSize; - if (unpackPos < folderUnpackSize) - return SZ_ERROR_ARCHIVE; - } - */ - folderIndex++; - } - - if (ssi.sdNumSubStreams.Data && ssi.sdNumSubStreams.Size != 0) - return SZ_ERROR_ARCHIVE; - } -} - return SZ_OK; -} - - -static SRes SzReadHeader( - CSzArEx *p, - CSzData *sd, - ILookInStream *inStream, - ISzAlloc *allocMain, - ISzAlloc *allocTemp) -{ - UInt32 i; - UInt32 numTempBufs = 0; - SRes res; - CBuf tempBufs[NUM_ADDITIONAL_STREAMS_MAX]; - - for (i = 0; i < NUM_ADDITIONAL_STREAMS_MAX; i++) - Buf_Init(tempBufs + i); - - res = SzReadHeader2(p, sd, inStream, - tempBufs, &numTempBufs, - allocMain, allocTemp); - - for (i = 0; i < NUM_ADDITIONAL_STREAMS_MAX; i++) - Buf_Free(tempBufs + i, allocTemp); - - RINOK(res); - - if (sd->Size != 0) - return SZ_ERROR_FAIL; - - return res; -} - -static SRes SzArEx_Open2( - CSzArEx *p, - ILookInStream *inStream, - ISzAlloc *allocMain, - ISzAlloc *allocTemp) -{ - Byte header[k7zStartHeaderSize]; - Int64 startArcPos; - UInt64 nextHeaderOffset, nextHeaderSize; - size_t nextHeaderSizeT; - UInt32 nextHeaderCRC; - CBuf buf; - SRes res; - - startArcPos = 0; - RINOK(inStream->Seek(inStream, &startArcPos, SZ_SEEK_CUR)); - - RINOK(LookInStream_Read2(inStream, header, k7zStartHeaderSize, SZ_ERROR_NO_ARCHIVE)); - - if (!TestSignatureCandidate(header)) - return SZ_ERROR_NO_ARCHIVE; - if (header[6] != k7zMajorVersion) - return SZ_ERROR_UNSUPPORTED; - - nextHeaderOffset = GetUi64(header + 12); - nextHeaderSize = GetUi64(header + 20); - nextHeaderCRC = GetUi32(header + 28); - - p->startPosAfterHeader = startArcPos + k7zStartHeaderSize; - - if (CrcCalc(header + 12, 20) != GetUi32(header + 8)) - return SZ_ERROR_CRC; - - nextHeaderSizeT = (size_t)nextHeaderSize; - if (nextHeaderSizeT != nextHeaderSize) - return SZ_ERROR_MEM; - if (nextHeaderSizeT == 0) - return SZ_OK; - if (nextHeaderOffset > nextHeaderOffset + nextHeaderSize || - nextHeaderOffset > nextHeaderOffset + nextHeaderSize + k7zStartHeaderSize) - return SZ_ERROR_NO_ARCHIVE; - - { - Int64 pos = 0; - RINOK(inStream->Seek(inStream, &pos, SZ_SEEK_END)); - if ((UInt64)pos < startArcPos + nextHeaderOffset || - (UInt64)pos < startArcPos + k7zStartHeaderSize + nextHeaderOffset || - (UInt64)pos < startArcPos + k7zStartHeaderSize + nextHeaderOffset + nextHeaderSize) - return SZ_ERROR_INPUT_EOF; - } - - RINOK(LookInStream_SeekTo(inStream, startArcPos + k7zStartHeaderSize + nextHeaderOffset)); - - if (!Buf_Create(&buf, nextHeaderSizeT, allocTemp)) - return SZ_ERROR_MEM; - - res = LookInStream_Read(inStream, buf.data, nextHeaderSizeT); - - if (res == SZ_OK) - { - res = SZ_ERROR_ARCHIVE; - if (CrcCalc(buf.data, nextHeaderSizeT) == nextHeaderCRC) - { - CSzData sd; - UInt64 type; - sd.Data = buf.data; - sd.Size = buf.size; - - res = ReadID(&sd, &type); - - if (res == SZ_OK && type == k7zIdEncodedHeader) - { - CSzAr tempAr; - CBuf tempBuf; - Buf_Init(&tempBuf); - - SzAr_Init(&tempAr); - res = SzReadAndDecodePackedStreams(inStream, &sd, &tempBuf, 1, p->startPosAfterHeader, &tempAr, allocTemp); - SzAr_Free(&tempAr, allocTemp); - - if (res != SZ_OK) - { - Buf_Free(&tempBuf, allocTemp); - } - else - { - Buf_Free(&buf, allocTemp); - buf.data = tempBuf.data; - buf.size = tempBuf.size; - sd.Data = buf.data; - sd.Size = buf.size; - res = ReadID(&sd, &type); - } - } - - if (res == SZ_OK) - { - if (type == k7zIdHeader) - { - /* - CSzData sd2; - unsigned ttt; - for (ttt = 0; ttt < 40000; ttt++) - { - SzArEx_Free(p, allocMain); - sd2 = sd; - res = SzReadHeader(p, &sd2, inStream, allocMain, allocTemp); - if (res != SZ_OK) - break; - } - */ - res = SzReadHeader(p, &sd, inStream, allocMain, allocTemp); - } - else - res = SZ_ERROR_UNSUPPORTED; - } - } - } - - Buf_Free(&buf, allocTemp); - return res; -} - - -static SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, - ISzAlloc *allocMain, ISzAlloc *allocTemp) -{ - SRes res = SzArEx_Open2(p, inStream, allocMain, allocTemp); - if (res != SZ_OK) - SzArEx_Free(p, allocMain); - return res; -} - - -static SRes SzArEx_Extract( - const CSzArEx *p, - ILookInStream *inStream, - UInt32 fileIndex, - UInt32 *blockIndex, - Byte **tempBuf, - size_t *outBufferSize, - size_t *offset, - size_t *outSizeProcessed, - ISzAlloc *allocMain, - ISzAlloc *allocTemp) -{ - UInt32 folderIndex = p->FileToFolder[fileIndex]; - SRes res = SZ_OK; - - *offset = 0; - *outSizeProcessed = 0; - - if (folderIndex == (UInt32)-1) - { - IAlloc_Free(allocMain, *tempBuf); - *blockIndex = folderIndex; - *tempBuf = NULL; - *outBufferSize = 0; - return SZ_OK; - } - - if (*tempBuf == NULL || *blockIndex != folderIndex) - { - UInt64 unpackSizeSpec = SzAr_GetFolderUnpackSize(&p->db, folderIndex); - /* - UInt64 unpackSizeSpec = - p->UnpackPositions[p->FolderToFile[folderIndex + 1]] - - p->UnpackPositions[p->FolderToFile[folderIndex]]; - */ - size_t unpackSize = (size_t)unpackSizeSpec; - - if (unpackSize != unpackSizeSpec) - return SZ_ERROR_MEM; - *blockIndex = folderIndex; - IAlloc_Free(allocMain, *tempBuf); - *tempBuf = NULL; - - if (res == SZ_OK) - { - *outBufferSize = unpackSize; - if (unpackSize != 0) - { - *tempBuf = (Byte *)IAlloc_Alloc(allocMain, unpackSize); - if (*tempBuf == NULL) - res = SZ_ERROR_MEM; - } - - if (res == SZ_OK) - { - res = SzAr_DecodeFolder(&p->db, folderIndex, - inStream, p->dataPos, *tempBuf, unpackSize, allocTemp); - } - } - } - - if (res == SZ_OK) - { - UInt64 unpackPos = p->UnpackPositions[fileIndex]; - *offset = (size_t)(unpackPos - p->UnpackPositions[p->FolderToFile[folderIndex]]); - *outSizeProcessed = (size_t)(p->UnpackPositions[fileIndex + 1] - unpackPos); - if (*offset + *outSizeProcessed > *outBufferSize) - return SZ_ERROR_FAIL; - if (SzBitWithVals_Check(&p->CRCs, fileIndex)) - if (CrcCalc(*tempBuf + *offset, *outSizeProcessed) != p->CRCs.Vals[fileIndex]) - res = SZ_ERROR_CRC; - } - - return res; -} - - -static size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest) -{ - size_t offs = p->FileNameOffsets[fileIndex]; - size_t len = p->FileNameOffsets[fileIndex + 1] - offs; - if (dest != 0) - { - size_t i; - const Byte *src = p->FileNames + offs * 2; - for (i = 0; i < len; i++) - dest[i] = GetUi16(src + i * 2); - } - return len; -} - -/* -static size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex) -{ - size_t len; - if (!p->FileNameOffsets) - return 1; - len = 0; - for (;;) - { - UInt32 parent = (UInt32)(Int32)-1; - len += p->FileNameOffsets[fileIndex + 1] - p->FileNameOffsets[fileIndex]; - if SzBitWithVals_Check(&p->Parents, fileIndex) - parent = p->Parents.Vals[fileIndex]; - if (parent == (UInt32)(Int32)-1) - return len; - fileIndex = parent; - } -} - -static UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16 *dest) -{ - Bool needSlash; - if (!p->FileNameOffsets) - { - *(--dest) = 0; - return dest; - } - needSlash = False; - for (;;) - { - UInt32 parent = (UInt32)(Int32)-1; - size_t curLen = p->FileNameOffsets[fileIndex + 1] - p->FileNameOffsets[fileIndex]; - SzArEx_GetFileNameUtf16(p, fileIndex, dest - curLen); - if (needSlash) - *(dest - 1) = '/'; - needSlash = True; - dest -= curLen; - - if SzBitWithVals_Check(&p->Parents, fileIndex) - parent = p->Parents.Vals[fileIndex]; - if (parent == (UInt32)(Int32)-1) - return dest; - fileIndex = parent; - } -} -*/ - -/* 7zBuf.c -- Byte Buffer -2013-01-21 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "7zBuf.h" -*/ - -static void Buf_Init(CBuf *p) -{ - p->data = 0; - p->size = 0; -} - -static int Buf_Create(CBuf *p, size_t size, ISzAlloc *alloc) -{ - p->size = 0; - if (size == 0) - { - p->data = 0; - return 1; - } - p->data = (Byte *)alloc->Alloc(alloc, size); - if (p->data != 0) - { - p->size = size; - return 1; - } - return 0; -} - -static void Buf_Free(CBuf *p, ISzAlloc *alloc) -{ - alloc->Free(alloc, p->data); - p->data = 0; - p->size = 0; -} - -/* 7zDec.c -- Decoding from 7z folder -2015-11-18 : Igor Pavlov : Public domain */ - -/* #define _7ZIP_PPMD_SUPPPORT */ - -/* -#include "Precomp.h" - -#include <string.h> - -#include "7z.h" -#include "7zCrc.h" - -#include "Bcj2.h" -#include "Bra.h" -#include "CpuArch.h" -#include "Delta.h" -#include "LzmaDec.h" -#include "Lzma2Dec.h" -#ifdef _7ZIP_PPMD_SUPPPORT -#include "Ppmd7.h" -#endif -*/ - -#define k_Copy 0 -#define k_Delta 3 -#define k_LZMA2 0x21 -#define k_LZMA 0x30101 -#define k_BCJ 0x3030103 -#define k_BCJ2 0x303011B -#define k_PPC 0x3030205 -#define k_IA64 0x3030401 -#define k_ARM 0x3030501 -#define k_ARMT 0x3030701 -#define k_SPARC 0x3030805 - - -#ifdef _7ZIP_PPMD_SUPPPORT - -#define k_PPMD 0x30401 - -typedef struct -{ - IByteIn p; - const Byte *cur; - const Byte *end; - const Byte *begin; - UInt64 processed; - Bool extra; - SRes res; - ILookInStream *inStream; -} CByteInToLook; - -static Byte ReadByte(void *pp) -{ - CByteInToLook *p = (CByteInToLook *)pp; - if (p->cur != p->end) - return *p->cur++; - if (p->res == SZ_OK) - { - size_t size = p->cur - p->begin; - p->processed += size; - p->res = p->inStream->Skip(p->inStream, size); - size = (1 << 25); - p->res = p->inStream->Look(p->inStream, (const void **)&p->begin, &size); - p->cur = p->begin; - p->end = p->begin + size; - if (size != 0) - return *p->cur++;; - } - p->extra = True; - return 0; -} - -static SRes SzDecodePpmd(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream, - Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain) -{ - CPpmd7 ppmd; - CByteInToLook s; - SRes res = SZ_OK; - - s.p.Read = ReadByte; - s.inStream = inStream; - s.begin = s.end = s.cur = NULL; - s.extra = False; - s.res = SZ_OK; - s.processed = 0; - - if (propsSize != 5) - return SZ_ERROR_UNSUPPORTED; - - { - unsigned order = props[0]; - UInt32 memSize = GetUi32(props + 1); - if (order < PPMD7_MIN_ORDER || - order > PPMD7_MAX_ORDER || - memSize < PPMD7_MIN_MEM_SIZE || - memSize > PPMD7_MAX_MEM_SIZE) - return SZ_ERROR_UNSUPPORTED; - Ppmd7_Construct(&ppmd); - if (!Ppmd7_Alloc(&ppmd, memSize, allocMain)) - return SZ_ERROR_MEM; - Ppmd7_Init(&ppmd, order); - } - { - CPpmd7z_RangeDec rc; - Ppmd7z_RangeDec_CreateVTable(&rc); - rc.Stream = &s.p; - if (!Ppmd7z_RangeDec_Init(&rc)) - res = SZ_ERROR_DATA; - else if (s.extra) - res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA); - else - { - SizeT i; - for (i = 0; i < outSize; i++) - { - int sym = Ppmd7_DecodeSymbol(&ppmd, &rc.p); - if (s.extra || sym < 0) - break; - outBuffer[i] = (Byte)sym; - } - if (i != outSize) - res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA); - else if (s.processed + (s.cur - s.begin) != inSize || !Ppmd7z_RangeDec_IsFinishedOK(&rc)) - res = SZ_ERROR_DATA; - } - } - Ppmd7_Free(&ppmd, allocMain); - return res; -} - -#endif - - -static SRes SzDecodeLzma(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream, - Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain) -{ - CLzmaDec state; - SRes res = SZ_OK; - - LzmaDec_Construct(&state); - RINOK(LzmaDec_AllocateProbs(&state, props, propsSize, allocMain)); - state.dic = outBuffer; - state.dicBufSize = outSize; - LzmaDec_Init(&state); - - for (;;) - { - const void *inBuf = NULL; - size_t lookahead = (1 << 18); - if (lookahead > inSize) - lookahead = (size_t)inSize; - res = inStream->Look(inStream, &inBuf, &lookahead); - if (res != SZ_OK) - break; - - { - SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos; - ELzmaStatus status; - res = LzmaDec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status); - lookahead -= inProcessed; - inSize -= inProcessed; - if (res != SZ_OK) - break; - - if (status == LZMA_STATUS_FINISHED_WITH_MARK) - { - if (outSize != state.dicPos || inSize != 0) - res = SZ_ERROR_DATA; - break; - } - - if (outSize == state.dicPos && inSize == 0 && status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK) - break; - - if (inProcessed == 0 && dicPos == state.dicPos) - { - res = SZ_ERROR_DATA; - break; - } - - res = inStream->Skip((void *)inStream, inProcessed); - if (res != SZ_OK) - break; - } - } - - LzmaDec_FreeProbs(&state, allocMain); - return res; -} - - -#ifndef _7Z_NO_METHOD_LZMA2 - -static SRes SzDecodeLzma2(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream, - Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain) -{ - CLzma2Dec state; - SRes res = SZ_OK; - - Lzma2Dec_Construct(&state); - if (propsSize != 1) - return SZ_ERROR_DATA; - RINOK(Lzma2Dec_AllocateProbs(&state, props[0], allocMain)); - state.decoder.dic = outBuffer; - state.decoder.dicBufSize = outSize; - Lzma2Dec_Init(&state); - - for (;;) - { - const void *inBuf = NULL; - size_t lookahead = (1 << 18); - if (lookahead > inSize) - lookahead = (size_t)inSize; - res = inStream->Look(inStream, &inBuf, &lookahead); - if (res != SZ_OK) - break; - - { - SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos; - ELzmaStatus status; - res = Lzma2Dec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status); - lookahead -= inProcessed; - inSize -= inProcessed; - if (res != SZ_OK) - break; - - if (status == LZMA_STATUS_FINISHED_WITH_MARK) - { - if (outSize != state.decoder.dicPos || inSize != 0) - res = SZ_ERROR_DATA; - break; - } - - if (inProcessed == 0 && dicPos == state.decoder.dicPos) - { - res = SZ_ERROR_DATA; - break; - } - - res = inStream->Skip((void *)inStream, inProcessed); - if (res != SZ_OK) - break; - } - } - - Lzma2Dec_FreeProbs(&state, allocMain); - return res; -} - -#endif - - -static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer) -{ - while (inSize > 0) - { - const void *inBuf; - size_t curSize = (1 << 18); - if (curSize > inSize) - curSize = (size_t)inSize; - RINOK(inStream->Look(inStream, &inBuf, &curSize)); - if (curSize == 0) - return SZ_ERROR_INPUT_EOF; - memcpy(outBuffer, inBuf, curSize); - outBuffer += curSize; - inSize -= curSize; - RINOK(inStream->Skip((void *)inStream, curSize)); - } - return SZ_OK; -} - -static Bool IS_MAIN_METHOD(UInt32 m) -{ - switch (m) - { - case k_Copy: - case k_LZMA: - #ifndef _7Z_NO_METHOD_LZMA2 - case k_LZMA2: - #endif - #ifdef _7ZIP_PPMD_SUPPPORT - case k_PPMD: - #endif - return True; - } - return False; -} - -static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c) -{ - return - c->NumStreams == 1 - /* && c->MethodID <= (UInt32)0xFFFFFFFF */ - && IS_MAIN_METHOD((UInt32)c->MethodID); -} - -#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumStreams == 4) - -static SRes CheckSupportedFolder(const CSzFolder *f) -{ - if (f->NumCoders < 1 || f->NumCoders > 4) - return SZ_ERROR_UNSUPPORTED; - if (!IS_SUPPORTED_CODER(&f->Coders[0])) - return SZ_ERROR_UNSUPPORTED; - if (f->NumCoders == 1) - { - if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBonds != 0) - return SZ_ERROR_UNSUPPORTED; - return SZ_OK; - } - - - #ifndef _7Z_NO_METHODS_FILTERS - - if (f->NumCoders == 2) - { - const CSzCoderInfo *c = &f->Coders[1]; - if ( - /* c->MethodID > (UInt32)0xFFFFFFFF || */ - c->NumStreams != 1 - || f->NumPackStreams != 1 - || f->PackStreams[0] != 0 - || f->NumBonds != 1 - || f->Bonds[0].InIndex != 1 - || f->Bonds[0].OutIndex != 0) - return SZ_ERROR_UNSUPPORTED; - switch ((UInt32)c->MethodID) - { - case k_Delta: - case k_BCJ: - case k_PPC: - case k_IA64: - case k_SPARC: - case k_ARM: - case k_ARMT: - break; - default: - return SZ_ERROR_UNSUPPORTED; - } - return SZ_OK; - } - - #endif - - - if (f->NumCoders == 4) - { - if (!IS_SUPPORTED_CODER(&f->Coders[1]) - || !IS_SUPPORTED_CODER(&f->Coders[2]) - || !IS_BCJ2(&f->Coders[3])) - return SZ_ERROR_UNSUPPORTED; - if (f->NumPackStreams != 4 - || f->PackStreams[0] != 2 - || f->PackStreams[1] != 6 - || f->PackStreams[2] != 1 - || f->PackStreams[3] != 0 - || f->NumBonds != 3 - || f->Bonds[0].InIndex != 5 || f->Bonds[0].OutIndex != 0 - || f->Bonds[1].InIndex != 4 || f->Bonds[1].OutIndex != 1 - || f->Bonds[2].InIndex != 3 || f->Bonds[2].OutIndex != 2) - return SZ_ERROR_UNSUPPORTED; - return SZ_OK; - } - - return SZ_ERROR_UNSUPPORTED; -} - -#define CASE_BRA_CONV(isa) case k_ ## isa: isa ## _Convert(outBuffer, outSize, 0, 0); break; - -static SRes SzFolder_Decode2(const CSzFolder *folder, - const Byte *propsData, - const UInt64 *unpackSizes, - const UInt64 *packPositions, - ILookInStream *inStream, UInt64 startPos, - Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain, - Byte *tempBuf[]) -{ - UInt32 ci; - SizeT tempSizes[3] = { 0, 0, 0}; - SizeT tempSize3 = 0; - Byte *tempBuf3 = 0; - - RINOK(CheckSupportedFolder(folder)); - - for (ci = 0; ci < folder->NumCoders; ci++) - { - const CSzCoderInfo *coder = &folder->Coders[ci]; - - if (IS_MAIN_METHOD((UInt32)coder->MethodID)) - { - UInt32 si = 0; - UInt64 offset; - UInt64 inSize; - Byte *outBufCur = outBuffer; - SizeT outSizeCur = outSize; - if (folder->NumCoders == 4) - { - UInt32 indices[] = { 3, 2, 0 }; - UInt64 unpackSize = unpackSizes[ci]; - si = indices[ci]; - if (ci < 2) - { - Byte *temp; - outSizeCur = (SizeT)unpackSize; - if (outSizeCur != unpackSize) - return SZ_ERROR_MEM; - temp = (Byte *)IAlloc_Alloc(allocMain, outSizeCur); - if (!temp && outSizeCur != 0) - return SZ_ERROR_MEM; - outBufCur = tempBuf[1 - ci] = temp; - tempSizes[1 - ci] = outSizeCur; - } - else if (ci == 2) - { - if (unpackSize > outSize) /* check it */ - return SZ_ERROR_PARAM; - tempBuf3 = outBufCur = outBuffer + (outSize - (size_t)unpackSize); - tempSize3 = outSizeCur = (SizeT)unpackSize; - } - else - return SZ_ERROR_UNSUPPORTED; - } - offset = packPositions[si]; - inSize = packPositions[si + 1] - offset; - RINOK(LookInStream_SeekTo(inStream, startPos + offset)); - - if (coder->MethodID == k_Copy) - { - if (inSize != outSizeCur) /* check it */ - return SZ_ERROR_DATA; - RINOK(SzDecodeCopy(inSize, inStream, outBufCur)); - } - else if (coder->MethodID == k_LZMA) - { - RINOK(SzDecodeLzma(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain)); - } - #ifndef _7Z_NO_METHOD_LZMA2 - else if (coder->MethodID == k_LZMA2) - { - RINOK(SzDecodeLzma2(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain)); - } - #endif - #ifdef _7ZIP_PPMD_SUPPPORT - else if (coder->MethodID == k_PPMD) - { - RINOK(SzDecodePpmd(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain)); - } - #endif - else - return SZ_ERROR_UNSUPPORTED; - } - else if (coder->MethodID == k_BCJ2) - { - UInt64 offset = packPositions[1]; - UInt64 s3Size = packPositions[2] - offset; - - if (ci != 3) - return SZ_ERROR_UNSUPPORTED; - - tempSizes[2] = (SizeT)s3Size; - if (tempSizes[2] != s3Size) - return SZ_ERROR_MEM; - tempBuf[2] = (Byte *)IAlloc_Alloc(allocMain, tempSizes[2]); - if (!tempBuf[2] && tempSizes[2] != 0) - return SZ_ERROR_MEM; - - RINOK(LookInStream_SeekTo(inStream, startPos + offset)); - RINOK(SzDecodeCopy(s3Size, inStream, tempBuf[2])); - - if ((tempSizes[0] & 3) != 0 || - (tempSizes[1] & 3) != 0 || - tempSize3 + tempSizes[0] + tempSizes[1] != outSize) - return SZ_ERROR_DATA; - - { - CBcj2Dec p; - - p.bufs[0] = tempBuf3; p.lims[0] = tempBuf3 + tempSize3; - p.bufs[1] = tempBuf[0]; p.lims[1] = tempBuf[0] + tempSizes[0]; - p.bufs[2] = tempBuf[1]; p.lims[2] = tempBuf[1] + tempSizes[1]; - p.bufs[3] = tempBuf[2]; p.lims[3] = tempBuf[2] + tempSizes[2]; - - p.dest = outBuffer; - p.destLim = outBuffer + outSize; - - Bcj2Dec_Init(&p); - RINOK(Bcj2Dec_Decode(&p)); - - { - unsigned i; - for (i = 0; i < 4; i++) - if (p.bufs[i] != p.lims[i]) - return SZ_ERROR_DATA; - - if (!Bcj2Dec_IsFinished(&p)) - return SZ_ERROR_DATA; - - if (p.dest != p.destLim - || p.state != BCJ2_STREAM_MAIN) - return SZ_ERROR_DATA; - } - } - } - #ifndef _7Z_NO_METHODS_FILTERS - else if (ci == 1) - { - if (coder->MethodID == k_Delta) - { - if (coder->PropsSize != 1) - return SZ_ERROR_UNSUPPORTED; - { - Byte state[DELTA_STATE_SIZE]; - Delta_Init(state); - Delta_Decode(state, (unsigned)(propsData[coder->PropsOffset]) + 1, outBuffer, outSize); - } - } - else - { - if (coder->PropsSize != 0) - return SZ_ERROR_UNSUPPORTED; - switch (coder->MethodID) - { - case k_BCJ: - { - UInt32 state; - x86_Convert_Init(state); - x86_Convert(outBuffer, outSize, 0, &state, 0); - break; - } - CASE_BRA_CONV(PPC) - CASE_BRA_CONV(IA64) - CASE_BRA_CONV(SPARC) - CASE_BRA_CONV(ARM) - CASE_BRA_CONV(ARMT) - default: - return SZ_ERROR_UNSUPPORTED; - } - } - } - #endif - else - return SZ_ERROR_UNSUPPORTED; - } - - return SZ_OK; -} - - -static SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex, - ILookInStream *inStream, UInt64 startPos, - Byte *outBuffer, size_t outSize, - ISzAlloc *allocMain) -{ - SRes res; - CSzFolder folder; - CSzData sd; - - const Byte *data = p->CodersData + p->FoCodersOffsets[folderIndex]; - sd.Data = data; - sd.Size = p->FoCodersOffsets[folderIndex + 1] - p->FoCodersOffsets[folderIndex]; - - res = SzGetNextFolderItem(&folder, &sd); - - if (res != SZ_OK) - return res; - - if (sd.Size != 0 - || folder.UnpackStream != p->FoToMainUnpackSizeIndex[folderIndex] - || outSize != SzAr_GetFolderUnpackSize(p, folderIndex)) - return SZ_ERROR_FAIL; - { - unsigned i; - Byte *tempBuf[3] = { 0, 0, 0}; - - res = SzFolder_Decode2(&folder, data, - &p->CoderUnpackSizes[p->FoToCoderUnpackSizes[folderIndex]], - p->PackPositions + p->FoStartPackStreamIndex[folderIndex], - inStream, startPos, - outBuffer, (SizeT)outSize, allocMain, tempBuf); - - for (i = 0; i < 3; i++) - IAlloc_Free(allocMain, tempBuf[i]); - - if (res == SZ_OK) - if (SzBitWithVals_Check(&p->FolderCRCs, folderIndex)) - if (CrcCalc(outBuffer, outSize) != p->FolderCRCs.Vals[folderIndex]) - res = SZ_ERROR_CRC; - - return res; - } -} - -/* Bcj2.c -- BCJ2 Decoder (Converter for x86 code) -2015-08-01 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "Bcj2.h" -#include "CpuArch.h" -*/ - -#define CProb UInt16 - -#define kTopValue ((UInt32)1 << 24) -#define kNumModelBits 11 -#define kBitModelTotal (1 << kNumModelBits) -#define kNumMoveBits 5 - -#define _IF_BIT_0 ttt = *prob; bound = (p->range >> kNumModelBits) * ttt; if (p->code < bound) -#define _UPDATE_0 p->range = bound; *prob = (CProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); -#define _UPDATE_1 p->range -= bound; p->code -= bound; *prob = (CProb)(ttt - (ttt >> kNumMoveBits)); - -static void Bcj2Dec_Init(CBcj2Dec *p) -{ - unsigned i; - - p->state = BCJ2_DEC_STATE_OK; - p->ip = 0; - p->temp[3] = 0; - p->range = 0; - p->code = 0; - for (i = 0; i < sizeof(p->probs) / sizeof(p->probs[0]); i++) - p->probs[i] = kBitModelTotal >> 1; -} - -static SRes Bcj2Dec_Decode(CBcj2Dec *p) -{ - if (p->range <= 5) - { - p->state = BCJ2_DEC_STATE_OK; - for (; p->range != 5; p->range++) - { - if (p->range == 1 && p->code != 0) - return SZ_ERROR_DATA; - - if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC]) - { - p->state = BCJ2_STREAM_RC; - return SZ_OK; - } - - p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++; - } - - if (p->code == 0xFFFFFFFF) - return SZ_ERROR_DATA; - - p->range = 0xFFFFFFFF; - } - else if (p->state >= BCJ2_DEC_STATE_ORIG_0) - { - while (p->state <= BCJ2_DEC_STATE_ORIG_3) - { - Byte *dest = p->dest; - if (dest == p->destLim) - return SZ_OK; - *dest = p->temp[p->state++ - BCJ2_DEC_STATE_ORIG_0]; - p->dest = dest + 1; - } - } - - /* - if (BCJ2_IS_32BIT_STREAM(p->state)) - { - const Byte *cur = p->bufs[p->state]; - if (cur == p->lims[p->state]) - return SZ_OK; - p->bufs[p->state] = cur + 4; - - { - UInt32 val; - Byte *dest; - SizeT rem; - - p->ip += 4; - val = GetBe32(cur) - p->ip; - dest = p->dest; - rem = p->destLim - dest; - if (rem < 4) - { - SizeT i; - SetUi32(p->temp, val); - for (i = 0; i < rem; i++) - dest[i] = p->temp[i]; - p->dest = dest + rem; - p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem; - return SZ_OK; - } - SetUi32(dest, val); - p->temp[3] = (Byte)(val >> 24); - p->dest = dest + 4; - p->state = BCJ2_DEC_STATE_OK; - } - } - */ - - for (;;) - { - if (BCJ2_IS_32BIT_STREAM(p->state)) - p->state = BCJ2_DEC_STATE_OK; - else - { - if (p->range < kTopValue) - { - if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC]) - { - p->state = BCJ2_STREAM_RC; - return SZ_OK; - } - p->range <<= 8; - p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++; - } - - { - const Byte *src = p->bufs[BCJ2_STREAM_MAIN]; - const Byte *srcLim; - Byte *dest; - SizeT num = p->lims[BCJ2_STREAM_MAIN] - src; - - if (num == 0) - { - p->state = BCJ2_STREAM_MAIN; - return SZ_OK; - } - - dest = p->dest; - if (num > (SizeT)(p->destLim - dest)) - { - num = p->destLim - dest; - if (num == 0) - { - p->state = BCJ2_DEC_STATE_ORIG; - return SZ_OK; - } - } - - srcLim = src + num; - - if (p->temp[3] == 0x0F && (src[0] & 0xF0) == 0x80) - *dest = src[0]; - else for (;;) - { - Byte b = *src; - *dest = b; - if (b != 0x0F) - { - if ((b & 0xFE) == 0xE8) - break; - dest++; - if (++src != srcLim) - continue; - break; - } - dest++; - if (++src == srcLim) - break; - if ((*src & 0xF0) != 0x80) - continue; - *dest = *src; - break; - } - - num = src - p->bufs[BCJ2_STREAM_MAIN]; - - if (src == srcLim) - { - p->temp[3] = src[-1]; - p->bufs[BCJ2_STREAM_MAIN] = src; - p->ip += (UInt32)num; - p->dest += num; - p->state = - p->bufs[BCJ2_STREAM_MAIN] == - p->lims[BCJ2_STREAM_MAIN] ? - (unsigned)BCJ2_STREAM_MAIN : - (unsigned)BCJ2_DEC_STATE_ORIG; - return SZ_OK; - } - - { - UInt32 bound, ttt; - CProb *prob; - Byte b = src[0]; - Byte prev = (Byte)(num == 0 ? p->temp[3] : src[-1]); - - p->temp[3] = b; - p->bufs[BCJ2_STREAM_MAIN] = src + 1; - num++; - p->ip += (UInt32)num; - p->dest += num; - - prob = p->probs + (unsigned)(b == 0xE8 ? 2 + (unsigned)prev : (b == 0xE9 ? 1 : 0)); - - _IF_BIT_0 - { - _UPDATE_0 - continue; - } - _UPDATE_1 - - } - } - } - - { - UInt32 val; - unsigned cj = (p->temp[3] == 0xE8) ? BCJ2_STREAM_CALL : BCJ2_STREAM_JUMP; - const Byte *cur = p->bufs[cj]; - Byte *dest; - SizeT rem; - - if (cur == p->lims[cj]) - { - p->state = cj; - break; - } - - val = GetBe32(cur); - p->bufs[cj] = cur + 4; - - p->ip += 4; - val -= p->ip; - dest = p->dest; - rem = p->destLim - dest; - - if (rem < 4) - { - SizeT i; - SetUi32(p->temp, val); - for (i = 0; i < rem; i++) - dest[i] = p->temp[i]; - p->dest = dest + rem; - p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem; - break; - } - - SetUi32(dest, val); - p->temp[3] = (Byte)(val >> 24); - p->dest = dest + 4; - } - } - - if (p->range < kTopValue && p->bufs[BCJ2_STREAM_RC] != p->lims[BCJ2_STREAM_RC]) - { - p->range <<= 8; - p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++; - } - - return SZ_OK; -} - -#undef kTopValue /* reused later. --ryan. */ -#undef kBitModelTotal /* reused later. --ryan. */ - - -/* Bra.c -- Converters for RISC code -2010-04-16 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "Bra.h" -*/ - -static SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding) -{ - SizeT i; - if (size < 4) - return 0; - size -= 4; - ip += 8; - for (i = 0; i <= size; i += 4) - { - if (data[i + 3] == 0xEB) - { - UInt32 dest; - UInt32 src = ((UInt32)data[i + 2] << 16) | ((UInt32)data[i + 1] << 8) | (data[i + 0]); - src <<= 2; - if (encoding) - dest = ip + (UInt32)i + src; - else - dest = src - (ip + (UInt32)i); - dest >>= 2; - data[i + 2] = (Byte)(dest >> 16); - data[i + 1] = (Byte)(dest >> 8); - data[i + 0] = (Byte)dest; - } - } - return i; -} - -static SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding) -{ - SizeT i; - if (size < 4) - return 0; - size -= 4; - ip += 4; - for (i = 0; i <= size; i += 2) - { - if ((data[i + 1] & 0xF8) == 0xF0 && - (data[i + 3] & 0xF8) == 0xF8) - { - UInt32 dest; - UInt32 src = - (((UInt32)data[i + 1] & 0x7) << 19) | - ((UInt32)data[i + 0] << 11) | - (((UInt32)data[i + 3] & 0x7) << 8) | - (data[i + 2]); - - src <<= 1; - if (encoding) - dest = ip + (UInt32)i + src; - else - dest = src - (ip + (UInt32)i); - dest >>= 1; - - data[i + 1] = (Byte)(0xF0 | ((dest >> 19) & 0x7)); - data[i + 0] = (Byte)(dest >> 11); - data[i + 3] = (Byte)(0xF8 | ((dest >> 8) & 0x7)); - data[i + 2] = (Byte)dest; - i += 2; - } - } - return i; -} - -static SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding) -{ - SizeT i; - if (size < 4) - return 0; - size -= 4; - for (i = 0; i <= size; i += 4) - { - if ((data[i] >> 2) == 0x12 && (data[i + 3] & 3) == 1) - { - UInt32 src = ((UInt32)(data[i + 0] & 3) << 24) | - ((UInt32)data[i + 1] << 16) | - ((UInt32)data[i + 2] << 8) | - ((UInt32)data[i + 3] & (~3)); - - UInt32 dest; - if (encoding) - dest = ip + (UInt32)i + src; - else - dest = src - (ip + (UInt32)i); - data[i + 0] = (Byte)(0x48 | ((dest >> 24) & 0x3)); - data[i + 1] = (Byte)(dest >> 16); - data[i + 2] = (Byte)(dest >> 8); - data[i + 3] &= 0x3; - data[i + 3] |= dest; - } - } - return i; -} - -static SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding) -{ - UInt32 i; - if (size < 4) - return 0; - size -= 4; - for (i = 0; i <= size; i += 4) - { - if ((data[i] == 0x40 && (data[i + 1] & 0xC0) == 0x00) || - (data[i] == 0x7F && (data[i + 1] & 0xC0) == 0xC0)) - { - UInt32 src = - ((UInt32)data[i + 0] << 24) | - ((UInt32)data[i + 1] << 16) | - ((UInt32)data[i + 2] << 8) | - ((UInt32)data[i + 3]); - UInt32 dest; - - src <<= 2; - if (encoding) - dest = ip + i + src; - else - dest = src - (ip + i); - dest >>= 2; - - dest = (((0 - ((dest >> 22) & 1)) << 22) & 0x3FFFFFFF) | (dest & 0x3FFFFF) | 0x40000000; - - data[i + 0] = (Byte)(dest >> 24); - data[i + 1] = (Byte)(dest >> 16); - data[i + 2] = (Byte)(dest >> 8); - data[i + 3] = (Byte)dest; - } - } - return i; -} - -/* Bra86.c -- Converter for x86 code (BCJ) -2013-11-12 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "Bra.h" -*/ - -#define Test86MSByte(b) ((((b) + 1) & 0xFE) == 0) - -static SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding) -{ - SizeT pos = 0; - UInt32 mask = *state & 7; - if (size < 5) - return 0; - size -= 4; - ip += 5; - - for (;;) - { - Byte *p = data + pos; - const Byte *limit = data + size; - for (; p < limit; p++) - if ((*p & 0xFE) == 0xE8) - break; - - { - SizeT d = (SizeT)(p - data - pos); - pos = (SizeT)(p - data); - if (p >= limit) - { - *state = (d > 2 ? 0 : mask >> (unsigned)d); - return pos; - } - if (d > 2) - mask = 0; - else - { - mask >>= (unsigned)d; - if (mask != 0 && (mask > 4 || mask == 3 || Test86MSByte(p[(mask >> 1) + 1]))) - { - mask = (mask >> 1) | 4; - pos++; - continue; - } - } - } - - if (Test86MSByte(p[4])) - { - UInt32 v = ((UInt32)p[4] << 24) | ((UInt32)p[3] << 16) | ((UInt32)p[2] << 8) | ((UInt32)p[1]); - UInt32 cur = ip + (UInt32)pos; - pos += 5; - if (encoding) - v += cur; - else - v -= cur; - if (mask != 0) - { - unsigned sh = (mask & 6) << 2; - if (Test86MSByte((Byte)(v >> sh))) - { - v ^= (((UInt32)0x100 << sh) - 1); - if (encoding) - v += cur; - else - v -= cur; - } - mask = 0; - } - p[1] = (Byte)v; - p[2] = (Byte)(v >> 8); - p[3] = (Byte)(v >> 16); - p[4] = (Byte)(0 - ((v >> 24) & 1)); - } - else - { - mask = (mask >> 1) | 4; - pos++; - } - } -} - - -/* BraIA64.c -- Converter for IA-64 code -2013-11-12 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "Bra.h" -*/ -static const Byte kBranchTable[32] = -{ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 4, 4, 6, 6, 0, 0, 7, 7, - 4, 4, 0, 0, 4, 4, 0, 0 -}; - -static SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding) -{ - SizeT i; - if (size < 16) - return 0; - size -= 16; - for (i = 0; i <= size; i += 16) - { - UInt32 instrTemplate = data[i] & 0x1F; - UInt32 mask = kBranchTable[instrTemplate]; - UInt32 bitPos = 5; - int slot; - for (slot = 0; slot < 3; slot++, bitPos += 41) - { - UInt32 bytePos, bitRes; - UInt64 instruction, instNorm; - int j; - if (((mask >> slot) & 1) == 0) - continue; - bytePos = (bitPos >> 3); - bitRes = bitPos & 0x7; - instruction = 0; - for (j = 0; j < 6; j++) - instruction += (UInt64)data[i + j + bytePos] << (8 * j); - - instNorm = instruction >> bitRes; - if (((instNorm >> 37) & 0xF) == 0x5 && ((instNorm >> 9) & 0x7) == 0) - { - UInt32 src = (UInt32)((instNorm >> 13) & 0xFFFFF); - UInt32 dest; - src |= ((UInt32)(instNorm >> 36) & 1) << 20; - - src <<= 4; - - if (encoding) - dest = ip + (UInt32)i + src; - else - dest = src - (ip + (UInt32)i); - - dest >>= 4; - - instNorm &= ~((UInt64)(0x8FFFFF) << 13); - instNorm |= ((UInt64)(dest & 0xFFFFF) << 13); - instNorm |= ((UInt64)(dest & 0x100000) << (36 - 20)); - - instruction &= (1 << bitRes) - 1; - instruction |= (instNorm << bitRes); - for (j = 0; j < 6; j++) - data[i + j + bytePos] = (Byte)(instruction >> (8 * j)); - } - } - } - return i; -} - - -/* Delta.c -- Delta converter -2009-05-26 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "Delta.h" -*/ - -static void Delta_Init(Byte *state) -{ - unsigned i; - for (i = 0; i < DELTA_STATE_SIZE; i++) - state[i] = 0; -} - -static void MyMemCpy(Byte *dest, const Byte *src, unsigned size) -{ - unsigned i; - for (i = 0; i < size; i++) - dest[i] = src[i]; -} - -static void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size) -{ - Byte buf[DELTA_STATE_SIZE]; - unsigned j = 0; - MyMemCpy(buf, state, delta); - { - SizeT i; - for (i = 0; i < size;) - { - for (j = 0; j < delta && i < size; i++, j++) - { - buf[j] = data[i] = (Byte)(buf[j] + data[i]); - } - } - } - if (j == delta) - j = 0; - MyMemCpy(state, buf + j, delta - j); - MyMemCpy(state + delta - j, buf, j); -} - -/* LzmaDec.c -- LZMA Decoder -2016-05-16 : Igor Pavlov : Public domain */ - -/* -#include "Precomp.h" - -#include "LzmaDec.h" - -#include <string.h> -*/ - -#define kNumTopBits 24 -#define kTopValue ((UInt32)1 << kNumTopBits) - -#define kNumBitModelTotalBits 11 -#define kBitModelTotal (1 << kNumBitModelTotalBits) -#define kNumMoveBits 5 - -#define RC_INIT_SIZE 5 - -#define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); } - -#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) -#define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); -#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); -#define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \ - { UPDATE_0(p); i = (i + i); A0; } else \ - { UPDATE_1(p); i = (i + i) + 1; A1; } -#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;) - -#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); } -#define TREE_DECODE(probs, limit, i) \ - { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; } - -/* #define _LZMA_SIZE_OPT */ - -#ifdef _LZMA_SIZE_OPT -#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i) -#else -#define TREE_6_DECODE(probs, i) \ - { i = 1; \ - TREE_GET_BIT(probs, i); \ - TREE_GET_BIT(probs, i); \ - TREE_GET_BIT(probs, i); \ - TREE_GET_BIT(probs, i); \ - TREE_GET_BIT(probs, i); \ - TREE_GET_BIT(probs, i); \ - i -= 0x40; } -#endif - -#define NORMAL_LITER_DEC GET_BIT(prob + symbol, symbol) -#define MATCHED_LITER_DEC \ - matchByte <<= 1; \ - bit = (matchByte & offs); \ - probLit = prob + offs + bit + symbol; \ - GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit) - -#define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); } - -#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) -#define UPDATE_0_CHECK range = bound; -#define UPDATE_1_CHECK range -= bound; code -= bound; -#define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \ - { UPDATE_0_CHECK; i = (i + i); A0; } else \ - { UPDATE_1_CHECK; i = (i + i) + 1; A1; } -#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;) -#define TREE_DECODE_CHECK(probs, limit, i) \ - { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; } - - -#define kNumPosBitsMax 4 -#define kNumPosStatesMax (1 << kNumPosBitsMax) - -#define kLenNumLowBits 3 -#define kLenNumLowSymbols (1 << kLenNumLowBits) -#define kLenNumMidBits 3 -#define kLenNumMidSymbols (1 << kLenNumMidBits) -#define kLenNumHighBits 8 -#define kLenNumHighSymbols (1 << kLenNumHighBits) - -#define LenChoice 0 -#define LenChoice2 (LenChoice + 1) -#define LenLow (LenChoice2 + 1) -#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) -#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) -#define kNumLenProbs (LenHigh + kLenNumHighSymbols) - - -#define kNumStates 12 -#define kNumLitStates 7 - -#define kStartPosModelIndex 4 -#define kEndPosModelIndex 14 -#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) - -#define kNumPosSlotBits 6 -#define kNumLenToPosStates 4 - -#define kNumAlignBits 4 -#define kAlignTableSize (1 << kNumAlignBits) - -#define kMatchMinLen 2 -#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) - -#define IsMatch 0 -#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) -#define IsRepG0 (IsRep + kNumStates) -#define IsRepG1 (IsRepG0 + kNumStates) -#define IsRepG2 (IsRepG1 + kNumStates) -#define IsRep0Long (IsRepG2 + kNumStates) -#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) -#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) -#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) -#define LenCoder (Align + kAlignTableSize) -#define RepLenCoder (LenCoder + kNumLenProbs) -#define Literal (RepLenCoder + kNumLenProbs) - -#define LZMA_BASE_SIZE 1846 -#define LZMA_LIT_SIZE 0x300 - -#if Literal != LZMA_BASE_SIZE -StopCompilingDueBUG -#endif - -#define LzmaProps_GetNumProbs(p) (Literal + ((UInt32)LZMA_LIT_SIZE << ((p)->lc + (p)->lp))) - -#define LZMA_DIC_MIN (1 << 12) - -/* First LZMA-symbol is always decoded. -And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization -Out: - Result: - SZ_OK - OK - SZ_ERROR_DATA - Error - p->remainLen: - < kMatchSpecLenStart : normal remain - = kMatchSpecLenStart : finished - = kMatchSpecLenStart + 1 : Flush marker (unused now) - = kMatchSpecLenStart + 2 : State Init Marker (unused now) -*/ - -static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit) -{ - CLzmaProb *probs = p->probs; - - unsigned state = p->state; - UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3]; - unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1; - unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1; - unsigned lc = p->prop.lc; - - Byte *dic = p->dic; - SizeT dicBufSize = p->dicBufSize; - SizeT dicPos = p->dicPos; - - UInt32 processedPos = p->processedPos; - UInt32 checkDicSize = p->checkDicSize; - unsigned len = 0; - - const Byte *buf = p->buf; - UInt32 range = p->range; - UInt32 code = p->code; - - do - { - CLzmaProb *prob; - UInt32 bound; - unsigned ttt; - unsigned posState = processedPos & pbMask; - - prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; - IF_BIT_0(prob) - { - unsigned symbol; - UPDATE_0(prob); - prob = probs + Literal; - if (processedPos != 0 || checkDicSize != 0) - prob += ((UInt32)LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) + - (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc)))); - processedPos++; - - if (state < kNumLitStates) - { - state -= (state < 4) ? state : 3; - symbol = 1; - #ifdef _LZMA_SIZE_OPT - do { NORMAL_LITER_DEC } while (symbol < 0x100); - #else - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - NORMAL_LITER_DEC - #endif - } - else - { - unsigned matchByte = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)]; - unsigned offs = 0x100; - state -= (state < 10) ? 3 : 6; - symbol = 1; - #ifdef _LZMA_SIZE_OPT - do - { - unsigned bit; - CLzmaProb *probLit; - MATCHED_LITER_DEC - } - while (symbol < 0x100); - #else - { - unsigned bit; - CLzmaProb *probLit; - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - MATCHED_LITER_DEC - } - #endif - } - - dic[dicPos++] = (Byte)symbol; - continue; - } - - { - UPDATE_1(prob); - prob = probs + IsRep + state; - IF_BIT_0(prob) - { - UPDATE_0(prob); - state += kNumStates; - prob = probs + LenCoder; - } - else - { - UPDATE_1(prob); - if (checkDicSize == 0 && processedPos == 0) - return SZ_ERROR_DATA; - prob = probs + IsRepG0 + state; - IF_BIT_0(prob) - { - UPDATE_0(prob); - prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; - IF_BIT_0(prob) - { - UPDATE_0(prob); - dic[dicPos] = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)]; - dicPos++; - processedPos++; - state = state < kNumLitStates ? 9 : 11; - continue; - } - UPDATE_1(prob); - } - else - { - UInt32 distance; - UPDATE_1(prob); - prob = probs + IsRepG1 + state; - IF_BIT_0(prob) - { - UPDATE_0(prob); - distance = rep1; - } - else - { - UPDATE_1(prob); - prob = probs + IsRepG2 + state; - IF_BIT_0(prob) - { - UPDATE_0(prob); - distance = rep2; - } - else - { - UPDATE_1(prob); - distance = rep3; - rep3 = rep2; - } - rep2 = rep1; - } - rep1 = rep0; - rep0 = distance; - } - state = state < kNumLitStates ? 8 : 11; - prob = probs + RepLenCoder; - } - - #ifdef _LZMA_SIZE_OPT - { - unsigned lim, offset; - CLzmaProb *probLen = prob + LenChoice; - IF_BIT_0(probLen) - { - UPDATE_0(probLen); - probLen = prob + LenLow + (posState << kLenNumLowBits); - offset = 0; - lim = (1 << kLenNumLowBits); - } - else - { - UPDATE_1(probLen); - probLen = prob + LenChoice2; - IF_BIT_0(probLen) - { - UPDATE_0(probLen); - probLen = prob + LenMid + (posState << kLenNumMidBits); - offset = kLenNumLowSymbols; - lim = (1 << kLenNumMidBits); - } - else - { - UPDATE_1(probLen); - probLen = prob + LenHigh; - offset = kLenNumLowSymbols + kLenNumMidSymbols; - lim = (1 << kLenNumHighBits); - } - } - TREE_DECODE(probLen, lim, len); - len += offset; - } - #else - { - CLzmaProb *probLen = prob + LenChoice; - IF_BIT_0(probLen) - { - UPDATE_0(probLen); - probLen = prob + LenLow + (posState << kLenNumLowBits); - len = 1; - TREE_GET_BIT(probLen, len); - TREE_GET_BIT(probLen, len); - TREE_GET_BIT(probLen, len); - len -= 8; - } - else - { - UPDATE_1(probLen); - probLen = prob + LenChoice2; - IF_BIT_0(probLen) - { - UPDATE_0(probLen); - probLen = prob + LenMid + (posState << kLenNumMidBits); - len = 1; - TREE_GET_BIT(probLen, len); - TREE_GET_BIT(probLen, len); - TREE_GET_BIT(probLen, len); - } - else - { - UPDATE_1(probLen); - probLen = prob + LenHigh; - TREE_DECODE(probLen, (1 << kLenNumHighBits), len); - len += kLenNumLowSymbols + kLenNumMidSymbols; - } - } - } - #endif - - if (state >= kNumStates) - { - UInt32 distance; - prob = probs + PosSlot + - ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits); - TREE_6_DECODE(prob, distance); - if (distance >= kStartPosModelIndex) - { - unsigned posSlot = (unsigned)distance; - unsigned numDirectBits = (unsigned)(((distance >> 1) - 1)); - distance = (2 | (distance & 1)); - if (posSlot < kEndPosModelIndex) - { - distance <<= numDirectBits; - prob = probs + SpecPos + distance - posSlot - 1; - { - UInt32 mask = 1; - unsigned i = 1; - do - { - GET_BIT2(prob + i, i, ; , distance |= mask); - mask <<= 1; - } - while (--numDirectBits != 0); - } - } - else - { - numDirectBits -= kNumAlignBits; - do - { - NORMALIZE - range >>= 1; - - { - UInt32 t; - code -= range; - t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */ - distance = (distance << 1) + (t + 1); - code += range & t; - } - /* - distance <<= 1; - if (code >= range) - { - code -= range; - distance |= 1; - } - */ - } - while (--numDirectBits != 0); - prob = probs + Align; - distance <<= kNumAlignBits; - { - unsigned i = 1; - GET_BIT2(prob + i, i, ; , distance |= 1); - GET_BIT2(prob + i, i, ; , distance |= 2); - GET_BIT2(prob + i, i, ; , distance |= 4); - GET_BIT2(prob + i, i, ; , distance |= 8); - } - if (distance == (UInt32)0xFFFFFFFF) - { - len += kMatchSpecLenStart; - state -= kNumStates; - break; - } - } - } - - rep3 = rep2; - rep2 = rep1; - rep1 = rep0; - rep0 = distance + 1; - if (checkDicSize == 0) - { - if (distance >= processedPos) - { - p->dicPos = dicPos; - return SZ_ERROR_DATA; - } - } - else if (distance >= checkDicSize) - { - p->dicPos = dicPos; - return SZ_ERROR_DATA; - } - state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3; - } - - len += kMatchMinLen; - - { - SizeT rem; - unsigned curLen; - SizeT pos; - - if ((rem = limit - dicPos) == 0) - { - p->dicPos = dicPos; - return SZ_ERROR_DATA; - } - - curLen = ((rem < len) ? (unsigned)rem : len); - pos = dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0); - - processedPos += curLen; - - len -= curLen; - if (curLen <= dicBufSize - pos) - { - Byte *dest = dic + dicPos; - ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos; - const Byte *lim = dest + curLen; - dicPos += curLen; - do - *(dest) = (Byte)*(dest + src); - while (++dest != lim); - } - else - { - do - { - dic[dicPos++] = dic[pos]; - if (++pos == dicBufSize) - pos = 0; - } - while (--curLen != 0); - } - } - } - } - while (dicPos < limit && buf < bufLimit); - - NORMALIZE; - - p->buf = buf; - p->range = range; - p->code = code; - p->remainLen = len; - p->dicPos = dicPos; - p->processedPos = processedPos; - p->reps[0] = rep0; - p->reps[1] = rep1; - p->reps[2] = rep2; - p->reps[3] = rep3; - p->state = state; - - return SZ_OK; -} - -static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit) -{ - if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart) - { - Byte *dic = p->dic; - SizeT dicPos = p->dicPos; - SizeT dicBufSize = p->dicBufSize; - unsigned len = p->remainLen; - SizeT rep0 = p->reps[0]; /* we use SizeT to avoid the BUG of VC14 for AMD64 */ - SizeT rem = limit - dicPos; - if (rem < len) - len = (unsigned)(rem); - - if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len) - p->checkDicSize = p->prop.dicSize; - - p->processedPos += len; - p->remainLen -= len; - while (len != 0) - { - len--; - dic[dicPos] = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)]; - dicPos++; - } - p->dicPos = dicPos; - } -} - -static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit) -{ - do - { - SizeT limit2 = limit; - if (p->checkDicSize == 0) - { - UInt32 rem = p->prop.dicSize - p->processedPos; - if (limit - p->dicPos > rem) - limit2 = p->dicPos + rem; - } - - RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit)); - - if (p->checkDicSize == 0 && p->processedPos >= p->prop.dicSize) - p->checkDicSize = p->prop.dicSize; - - LzmaDec_WriteRem(p, limit); - } - while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart); - - if (p->remainLen > kMatchSpecLenStart) - p->remainLen = kMatchSpecLenStart; - - return 0; -} - -typedef enum -{ - DUMMY_ERROR, /* unexpected end of input stream */ - DUMMY_LIT, - DUMMY_MATCH, - DUMMY_REP -} ELzmaDummy; - -static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize) -{ - UInt32 range = p->range; - UInt32 code = p->code; - const Byte *bufLimit = buf + inSize; - const CLzmaProb *probs = p->probs; - unsigned state = p->state; - ELzmaDummy res; - - { - const CLzmaProb *prob; - UInt32 bound; - unsigned ttt; - unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1); - - prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK - - /* if (bufLimit - buf >= 7) return DUMMY_LIT; */ - - prob = probs + Literal; - if (p->checkDicSize != 0 || p->processedPos != 0) - prob += ((UInt32)LZMA_LIT_SIZE * - ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) + - (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc)))); - - if (state < kNumLitStates) - { - unsigned symbol = 1; - do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100); - } - else - { - unsigned matchByte = p->dic[p->dicPos - p->reps[0] + - (p->dicPos < p->reps[0] ? p->dicBufSize : 0)]; - unsigned offs = 0x100; - unsigned symbol = 1; - do - { - unsigned bit; - const CLzmaProb *probLit; - matchByte <<= 1; - bit = (matchByte & offs); - probLit = prob + offs + bit + symbol; - GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit) - } - while (symbol < 0x100); - } - res = DUMMY_LIT; - } - else - { - unsigned len; - UPDATE_1_CHECK; - - prob = probs + IsRep + state; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK; - state = 0; - prob = probs + LenCoder; - res = DUMMY_MATCH; - } - else - { - UPDATE_1_CHECK; - res = DUMMY_REP; - prob = probs + IsRepG0 + state; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK; - prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK; - NORMALIZE_CHECK; - return DUMMY_REP; - } - else - { - UPDATE_1_CHECK; - } - } - else - { - UPDATE_1_CHECK; - prob = probs + IsRepG1 + state; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK; - } - else - { - UPDATE_1_CHECK; - prob = probs + IsRepG2 + state; - IF_BIT_0_CHECK(prob) - { - UPDATE_0_CHECK; - } - else - { - UPDATE_1_CHECK; - } - } - } - state = kNumStates; - prob = probs + RepLenCoder; - } - { - unsigned limit, offset; - const CLzmaProb *probLen = prob + LenChoice; - IF_BIT_0_CHECK(probLen) - { - UPDATE_0_CHECK; - probLen = prob + LenLow + (posState << kLenNumLowBits); - offset = 0; - limit = 1 << kLenNumLowBits; - } - else - { - UPDATE_1_CHECK; - probLen = prob + LenChoice2; - IF_BIT_0_CHECK(probLen) - { - UPDATE_0_CHECK; - probLen = prob + LenMid + (posState << kLenNumMidBits); - offset = kLenNumLowSymbols; - limit = 1 << kLenNumMidBits; - } - else - { - UPDATE_1_CHECK; - probLen = prob + LenHigh; - offset = kLenNumLowSymbols + kLenNumMidSymbols; - limit = 1 << kLenNumHighBits; - } - } - TREE_DECODE_CHECK(probLen, limit, len); - len += offset; - } - - if (state < 4) - { - unsigned posSlot; - prob = probs + PosSlot + - ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << - kNumPosSlotBits); - TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot); - if (posSlot >= kStartPosModelIndex) - { - unsigned numDirectBits = ((posSlot >> 1) - 1); - - /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */ - - if (posSlot < kEndPosModelIndex) - { - prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1; - } - else - { - numDirectBits -= kNumAlignBits; - do - { - NORMALIZE_CHECK - range >>= 1; - code -= range & (((code - range) >> 31) - 1); - /* if (code >= range) code -= range; */ - } - while (--numDirectBits != 0); - prob = probs + Align; - numDirectBits = kNumAlignBits; - } - { - unsigned i = 1; - do - { - GET_BIT_CHECK(prob + i, i); - } - while (--numDirectBits != 0); - } - } - } - } - } - NORMALIZE_CHECK; - return res; -} - - -static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) -{ - p->needFlush = 1; - p->remainLen = 0; - p->tempBufSize = 0; - - if (initDic) - { - p->processedPos = 0; - p->checkDicSize = 0; - p->needInitState = 1; - } - if (initState) - p->needInitState = 1; -} - -static void LzmaDec_Init(CLzmaDec *p) -{ - p->dicPos = 0; - LzmaDec_InitDicAndState(p, True, True); -} - -static void LzmaDec_InitStateReal(CLzmaDec *p) -{ - SizeT numProbs = LzmaProps_GetNumProbs(&p->prop); - SizeT i; - CLzmaProb *probs = p->probs; - for (i = 0; i < numProbs; i++) - probs[i] = kBitModelTotal >> 1; - p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1; - p->state = 0; - p->needInitState = 0; -} - -static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, - ELzmaFinishMode finishMode, ELzmaStatus *status) -{ - SizeT inSize = *srcLen; - (*srcLen) = 0; - LzmaDec_WriteRem(p, dicLimit); - - *status = LZMA_STATUS_NOT_SPECIFIED; - - while (p->remainLen != kMatchSpecLenStart) - { - int checkEndMarkNow; - - if (p->needFlush) - { - for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--) - p->tempBuf[p->tempBufSize++] = *src++; - if (p->tempBufSize < RC_INIT_SIZE) - { - *status = LZMA_STATUS_NEEDS_MORE_INPUT; - return SZ_OK; - } - if (p->tempBuf[0] != 0) - return SZ_ERROR_DATA; - p->code = - ((UInt32)p->tempBuf[1] << 24) - | ((UInt32)p->tempBuf[2] << 16) - | ((UInt32)p->tempBuf[3] << 8) - | ((UInt32)p->tempBuf[4]); - p->range = 0xFFFFFFFF; - p->needFlush = 0; - p->tempBufSize = 0; - } - - checkEndMarkNow = 0; - if (p->dicPos >= dicLimit) - { - if (p->remainLen == 0 && p->code == 0) - { - *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK; - return SZ_OK; - } - if (finishMode == LZMA_FINISH_ANY) - { - *status = LZMA_STATUS_NOT_FINISHED; - return SZ_OK; - } - if (p->remainLen != 0) - { - *status = LZMA_STATUS_NOT_FINISHED; - return SZ_ERROR_DATA; - } - checkEndMarkNow = 1; - } - - if (p->needInitState) - LzmaDec_InitStateReal(p); - - if (p->tempBufSize == 0) - { - SizeT processed; - const Byte *bufLimit; - if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) - { - int dummyRes = LzmaDec_TryDummy(p, src, inSize); - if (dummyRes == DUMMY_ERROR) - { - memcpy(p->tempBuf, src, inSize); - p->tempBufSize = (unsigned)inSize; - (*srcLen) += inSize; - *status = LZMA_STATUS_NEEDS_MORE_INPUT; - return SZ_OK; - } - if (checkEndMarkNow && dummyRes != DUMMY_MATCH) - { - *status = LZMA_STATUS_NOT_FINISHED; - return SZ_ERROR_DATA; - } - bufLimit = src; - } - else - bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX; - p->buf = src; - if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0) - return SZ_ERROR_DATA; - processed = (SizeT)(p->buf - src); - (*srcLen) += processed; - src += processed; - inSize -= processed; - } - else - { - unsigned rem = p->tempBufSize, lookAhead = 0; - while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize) - p->tempBuf[rem++] = src[lookAhead++]; - p->tempBufSize = rem; - if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) - { - int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem); - if (dummyRes == DUMMY_ERROR) - { - (*srcLen) += lookAhead; - *status = LZMA_STATUS_NEEDS_MORE_INPUT; - return SZ_OK; - } - if (checkEndMarkNow && dummyRes != DUMMY_MATCH) - { - *status = LZMA_STATUS_NOT_FINISHED; - return SZ_ERROR_DATA; - } - } - p->buf = p->tempBuf; - if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0) - return SZ_ERROR_DATA; - - { - unsigned kkk = (unsigned)(p->buf - p->tempBuf); - if (rem < kkk) - return SZ_ERROR_FAIL; /* some internal error */ - rem -= kkk; - if (lookAhead < rem) - return SZ_ERROR_FAIL; /* some internal error */ - lookAhead -= rem; - } - (*srcLen) += lookAhead; - src += lookAhead; - inSize -= lookAhead; - p->tempBufSize = 0; - } - } - if (p->code == 0) - *status = LZMA_STATUS_FINISHED_WITH_MARK; - return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA; -} - -static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) -{ - alloc->Free(alloc, p->probs); - p->probs = NULL; -} - -static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) -{ - UInt32 dicSize; - Byte d; - - if (size < LZMA_PROPS_SIZE) - return SZ_ERROR_UNSUPPORTED; - else - dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24); - - if (dicSize < LZMA_DIC_MIN) - dicSize = LZMA_DIC_MIN; - p->dicSize = dicSize; - - d = data[0]; - if (d >= (9 * 5 * 5)) - return SZ_ERROR_UNSUPPORTED; - - p->lc = d % 9; - d /= 9; - p->pb = d / 5; - p->lp = d % 5; - - return SZ_OK; -} - -static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc) -{ - UInt32 numProbs = LzmaProps_GetNumProbs(propNew); - if (!p->probs || numProbs != p->numProbs) - { - LzmaDec_FreeProbs(p, alloc); - p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb)); - p->numProbs = numProbs; - if (!p->probs) - return SZ_ERROR_MEM; - } - return SZ_OK; -} - -static SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -{ - CLzmaProps propNew; - RINOK(LzmaProps_Decode(&propNew, props, propsSize)); - RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc)); - p->prop = propNew; - return SZ_OK; -} - -/* Lzma2Dec.c -- LZMA2 Decoder -2015-11-09 : Igor Pavlov : Public domain */ - -/* #define SHOW_DEBUG_INFO */ - -/* -#include "Precomp.h" - -#ifdef SHOW_DEBUG_INFO -#include <stdio.h> -#endif - -#include <string.h> - -#include "Lzma2Dec.h" -*/ - -/* -00000000 - EOS -00000001 U U - Uncompressed Reset Dic -00000010 U U - Uncompressed No Reset -100uuuuu U U P P - LZMA no reset -101uuuuu U U P P - LZMA reset state -110uuuuu U U P P S - LZMA reset state + new prop -111uuuuu U U P P S - LZMA reset state + new prop + reset dic - - u, U - Unpack Size - P - Pack Size - S - Props -*/ - -#define LZMA2_CONTROL_LZMA (1 << 7) -#define LZMA2_CONTROL_COPY_NO_RESET 2 -#define LZMA2_CONTROL_COPY_RESET_DIC 1 -#define LZMA2_CONTROL_EOF 0 - -#define LZMA2_IS_UNCOMPRESSED_STATE(p) (((p)->control & LZMA2_CONTROL_LZMA) == 0) - -#define LZMA2_GET_LZMA_MODE(p) (((p)->control >> 5) & 3) -#define LZMA2_IS_THERE_PROP(mode) ((mode) >= 2) - -#define LZMA2_LCLP_MAX 4 -#define LZMA2_DIC_SIZE_FROM_PROP(p) (((UInt32)2 | ((p) & 1)) << ((p) / 2 + 11)) - -#ifdef SHOW_DEBUG_INFO -#define PRF(x) x -#else -#define PRF(x) -#endif - -typedef enum -{ - LZMA2_STATE_CONTROL, - LZMA2_STATE_UNPACK0, - LZMA2_STATE_UNPACK1, - LZMA2_STATE_PACK0, - LZMA2_STATE_PACK1, - LZMA2_STATE_PROP, - LZMA2_STATE_DATA, - LZMA2_STATE_DATA_CONT, - LZMA2_STATE_FINISHED, - LZMA2_STATE_ERROR -} ELzma2State; - -static SRes Lzma2Dec_GetOldProps(Byte prop, Byte *props) -{ - UInt32 dicSize; - if (prop > 40) - return SZ_ERROR_UNSUPPORTED; - dicSize = (prop == 40) ? 0xFFFFFFFF : LZMA2_DIC_SIZE_FROM_PROP(prop); - props[0] = (Byte)LZMA2_LCLP_MAX; - props[1] = (Byte)(dicSize); - props[2] = (Byte)(dicSize >> 8); - props[3] = (Byte)(dicSize >> 16); - props[4] = (Byte)(dicSize >> 24); - return SZ_OK; -} - -static SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc) -{ - Byte props[LZMA_PROPS_SIZE]; - RINOK(Lzma2Dec_GetOldProps(prop, props)); - return LzmaDec_AllocateProbs(&p->decoder, props, LZMA_PROPS_SIZE, alloc); -} - -static void Lzma2Dec_Init(CLzma2Dec *p) -{ - p->state = LZMA2_STATE_CONTROL; - p->needInitDic = True; - p->needInitState = True; - p->needInitProp = True; - LzmaDec_Init(&p->decoder); -} - -static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b) -{ - switch (p->state) - { - case LZMA2_STATE_CONTROL: - p->control = b; - PRF(printf("\n %4X ", (unsigned)p->decoder.dicPos)); - PRF(printf(" %2X", (unsigned)b)); - if (p->control == 0) - return LZMA2_STATE_FINISHED; - if (LZMA2_IS_UNCOMPRESSED_STATE(p)) - { - if ((p->control & 0x7F) > 2) - return LZMA2_STATE_ERROR; - p->unpackSize = 0; - } - else - p->unpackSize = (UInt32)(p->control & 0x1F) << 16; - return LZMA2_STATE_UNPACK0; - - case LZMA2_STATE_UNPACK0: - p->unpackSize |= (UInt32)b << 8; - return LZMA2_STATE_UNPACK1; - - case LZMA2_STATE_UNPACK1: - p->unpackSize |= (UInt32)b; - p->unpackSize++; - PRF(printf(" %8u", (unsigned)p->unpackSize)); - return (LZMA2_IS_UNCOMPRESSED_STATE(p)) ? LZMA2_STATE_DATA : LZMA2_STATE_PACK0; - - case LZMA2_STATE_PACK0: - p->packSize = (UInt32)b << 8; - return LZMA2_STATE_PACK1; - - case LZMA2_STATE_PACK1: - p->packSize |= (UInt32)b; - p->packSize++; - PRF(printf(" %8u", (unsigned)p->packSize)); - return LZMA2_IS_THERE_PROP(LZMA2_GET_LZMA_MODE(p)) ? LZMA2_STATE_PROP: - (p->needInitProp ? LZMA2_STATE_ERROR : LZMA2_STATE_DATA); - - case LZMA2_STATE_PROP: - { - unsigned lc, lp; - if (b >= (9 * 5 * 5)) - return LZMA2_STATE_ERROR; - lc = b % 9; - b /= 9; - p->decoder.prop.pb = b / 5; - lp = b % 5; - if (lc + lp > LZMA2_LCLP_MAX) - return LZMA2_STATE_ERROR; - p->decoder.prop.lc = lc; - p->decoder.prop.lp = lp; - p->needInitProp = False; - return LZMA2_STATE_DATA; - } - } - return LZMA2_STATE_ERROR; -} - -static void LzmaDec_UpdateWithUncompressed(CLzmaDec *p, const Byte *src, SizeT size) -{ - memcpy(p->dic + p->dicPos, src, size); - p->dicPos += size; - if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= size) - p->checkDicSize = p->prop.dicSize; - p->processedPos += (UInt32)size; -} - -static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState); - -static SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit, - const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) -{ - SizeT inSize = *srcLen; - *srcLen = 0; - *status = LZMA_STATUS_NOT_SPECIFIED; - - while (p->state != LZMA2_STATE_FINISHED) - { - SizeT dicPos = p->decoder.dicPos; - - if (p->state == LZMA2_STATE_ERROR) - return SZ_ERROR_DATA; - - if (dicPos == dicLimit && finishMode == LZMA_FINISH_ANY) - { - *status = LZMA_STATUS_NOT_FINISHED; - return SZ_OK; - } - - if (p->state != LZMA2_STATE_DATA && p->state != LZMA2_STATE_DATA_CONT) - { - if (*srcLen == inSize) - { - *status = LZMA_STATUS_NEEDS_MORE_INPUT; - return SZ_OK; - } - (*srcLen)++; - p->state = Lzma2Dec_UpdateState(p, *src++); - - if (dicPos == dicLimit && p->state != LZMA2_STATE_FINISHED) - { - p->state = LZMA2_STATE_ERROR; - return SZ_ERROR_DATA; - } - continue; - } - - { - SizeT destSizeCur = dicLimit - dicPos; - SizeT srcSizeCur = inSize - *srcLen; - ELzmaFinishMode curFinishMode = LZMA_FINISH_ANY; - - if (p->unpackSize <= destSizeCur) - { - destSizeCur = (SizeT)p->unpackSize; - curFinishMode = LZMA_FINISH_END; - } - - if (LZMA2_IS_UNCOMPRESSED_STATE(p)) - { - if (*srcLen == inSize) - { - *status = LZMA_STATUS_NEEDS_MORE_INPUT; - return SZ_OK; - } - - if (p->state == LZMA2_STATE_DATA) - { - Bool initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC); - if (initDic) - p->needInitProp = p->needInitState = True; - else if (p->needInitDic) - { - p->state = LZMA2_STATE_ERROR; - return SZ_ERROR_DATA; - } - p->needInitDic = False; - LzmaDec_InitDicAndState(&p->decoder, initDic, False); - } - - if (srcSizeCur > destSizeCur) - srcSizeCur = destSizeCur; - - if (srcSizeCur == 0) - { - p->state = LZMA2_STATE_ERROR; - return SZ_ERROR_DATA; - } - - LzmaDec_UpdateWithUncompressed(&p->decoder, src, srcSizeCur); - - src += srcSizeCur; - *srcLen += srcSizeCur; - p->unpackSize -= (UInt32)srcSizeCur; - p->state = (p->unpackSize == 0) ? LZMA2_STATE_CONTROL : LZMA2_STATE_DATA_CONT; - } - else - { - SizeT outSizeProcessed; - SRes res; - - if (p->state == LZMA2_STATE_DATA) - { - unsigned mode = LZMA2_GET_LZMA_MODE(p); - Bool initDic = (mode == 3); - Bool initState = (mode != 0); - if ((!initDic && p->needInitDic) || (!initState && p->needInitState)) - { - p->state = LZMA2_STATE_ERROR; - return SZ_ERROR_DATA; - } - - LzmaDec_InitDicAndState(&p->decoder, initDic, initState); - p->needInitDic = False; - p->needInitState = False; - p->state = LZMA2_STATE_DATA_CONT; - } - - if (srcSizeCur > p->packSize) - srcSizeCur = (SizeT)p->packSize; - - res = LzmaDec_DecodeToDic(&p->decoder, dicPos + destSizeCur, src, &srcSizeCur, curFinishMode, status); - - src += srcSizeCur; - *srcLen += srcSizeCur; - p->packSize -= (UInt32)srcSizeCur; - - outSizeProcessed = p->decoder.dicPos - dicPos; - p->unpackSize -= (UInt32)outSizeProcessed; - - RINOK(res); - if (*status == LZMA_STATUS_NEEDS_MORE_INPUT) - return res; - - if (srcSizeCur == 0 && outSizeProcessed == 0) - { - if (*status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK - || p->unpackSize != 0 - || p->packSize != 0) - { - p->state = LZMA2_STATE_ERROR; - return SZ_ERROR_DATA; - } - p->state = LZMA2_STATE_CONTROL; - } - - if (*status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK) - *status = LZMA_STATUS_NOT_FINISHED; - } - } - } - - *status = LZMA_STATUS_FINISHED_WITH_MARK; - return SZ_OK; -} - -#endif /* _INCLUDE_PHYSFS_LZMASDK_H_ */ - -/* end of physfs_lzmasdk.h ... */ - |