Update lzma_sdk sources to 15.14.

BUG=586201

Review URL: https://codereview.chromium.org/1700453002

Cr-Commit-Position: refs/heads/master@{#375883}

46 files changed, 3971 insertions, 2761 deletions

diff --git a/chrome/installer/util/lzma_file_allocator.h b/chrome/installer/util/lzma_file_allocator.h
index 6ec3252..d727d2f 100644
--- a/chrome/installer/util/lzma_file_allocator.h
+++ b/chrome/installer/util/lzma_file_allocator.h
@@ -12,10 +12,7 @@
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/win/scoped_handle.h"
-
-extern "C" {
-#include "third_party/lzma_sdk/Types.h"
-}
+#include "third_party/lzma_sdk/7zTypes.h"
 
 // File mapping memory management class which supports multiple allocations in
 // series, but not in parallel. It creates a unique temporary file within
diff --git a/chrome/installer/util/lzma_util.cc b/chrome/installer/util/lzma_util.cc
index fa5d21f..2da7b91 100644
--- a/chrome/installer/util/lzma_util.cc
+++ b/chrome/installer/util/lzma_util.cc
@@ -163,11 +163,10 @@ DWORD LzmaUtil::UnPack(const std::wstring& location,
   // Extra parentheses are needed here to avoid the most vexing parse.
   LzmaFileAllocator fileAllocator((base::FilePath(location)));
 
-  for (unsigned int i = 0; i < db.db.NumFiles; i++) {
+  for (unsigned int i = 0; i < db.NumFiles; i++) {
     DWORD written;
     size_t offset;
     size_t outSizeProcessed;
-    CSzFileItem *f = db.db.Files + i;
 
     if ((ret = SzArEx_Extract(&db, &lookStream.s, i, &blockIndex, &outBuffer,
                               &outBufferSize, &offset, &outSizeProcessed,
@@ -194,7 +193,7 @@ DWORD LzmaUtil::UnPack(const std::wstring& location,
       *output_file = file_path.value();
 
     // If archive entry is directory create it and move on to the next entry.
-    if (f->IsDir) {
+    if (SzArEx_IsDir(&db, i)) {
       CreateDirectory(file_path);
       continue;
     }
@@ -219,9 +218,9 @@ DWORD LzmaUtil::UnPack(const std::wstring& location,
       break;
     }
 
-    if (f->MTimeDefined) {
+    if (SzBitWithVals_Check(&db.MTime, i)) {
       if (!SetFileTime(hFile, NULL, NULL,
-                       (const FILETIME *)&(f->MTime))) {
+                       (const FILETIME *) (&db.MTime.Vals[i]))) {
         ret = GetLastError();
         CloseHandle(hFile);
         LOG(ERROR) << L"Error returned by SetFileTime: " << ret;
diff --git a/third_party/lzma_sdk/7z.h b/third_party/lzma_sdk/7z.h
index 01c4cac..4768151 100644
--- a/third_party/lzma_sdk/7z.h
+++ b/third_party/lzma_sdk/7z.h
@@ -1,89 +1,57 @@
 /* 7z.h -- 7z interface
-2010-03-11 : Igor Pavlov : Public domain */
+2015-11-18 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_H
 #define __7Z_H
 
-#include "7zBuf.h"
+#include "7zTypes.h"
 
 EXTERN_C_BEGIN
 
 #define k7zStartHeaderSize 0x20
 #define k7zSignatureSize 6
-extern Byte k7zSignature[k7zSignatureSize];
-#define k7zMajorVersion 0
 
-enum EIdEnum
+extern const Byte k7zSignature[k7zSignatureSize];
+
+typedef struct
 {
-  k7zIdEnd,
-  k7zIdHeader,
-  k7zIdArchiveProperties,
-  k7zIdAdditionalStreamsInfo,
-  k7zIdMainStreamsInfo,
-  k7zIdFilesInfo,
-  k7zIdPackInfo,
-  k7zIdUnpackInfo,
-  k7zIdSubStreamsInfo,
-  k7zIdSize,
-  k7zIdCRC,
-  k7zIdFolder,
-  k7zIdCodersUnpackSize,
-  k7zIdNumUnpackStream,
-  k7zIdEmptyStream,
-  k7zIdEmptyFile,
-  k7zIdAnti,
-  k7zIdName,
-  k7zIdCTime,
-  k7zIdATime,
-  k7zIdMTime,
-  k7zIdWinAttributes,
-  k7zIdComment,
-  k7zIdEncodedHeader,
-  k7zIdStartPos,
-  k7zIdDummy
-};
+  const Byte *Data;
+  size_t Size;
+} CSzData;
+
+/* CSzCoderInfo & CSzFolder support only default methods */
 
 typedef struct
 {
-  UInt32 NumInStreams;
-  UInt32 NumOutStreams;
-  UInt64 MethodID;
-  CBuf Props;
+  size_t PropsOffset;
+  UInt32 MethodID;
+  Byte NumStreams;
+  Byte PropsSize;
 } CSzCoderInfo;
 
-void SzCoderInfo_Init(CSzCoderInfo *p);
-void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc);
-
 typedef struct
 {
   UInt32 InIndex;
   UInt32 OutIndex;
-} CSzBindPair;
+} 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
 {
-  CSzCoderInfo *Coders;
-  CSzBindPair *BindPairs;
-  UInt32 *PackStreams;
-  UInt64 *UnpackSizes;
   UInt32 NumCoders;
-  UInt32 NumBindPairs;
+  UInt32 NumBonds;
   UInt32 NumPackStreams;
-  int UnpackCRCDefined;
-  UInt32 UnpackCRC;
-
-  UInt32 NumUnpackStreams;
+  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;
 
-void SzFolder_Init(CSzFolder *p);
-UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
-int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex);
-UInt32 SzFolder_GetNumOutStreams(CSzFolder *p);
-UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
 
-SRes SzFolder_Decode(const CSzFolder *folder, const UInt64 *packSizes,
-    ILookInStream *stream, UInt64 startPos,
-    Byte *outBuffer, size_t outSize, ISzAlloc *allocMain);
+SRes SzGetNextFolderItem(CSzFolder *f, CSzData *sd);
 
 typedef struct
 {
@@ -93,72 +61,75 @@ typedef struct
 
 typedef struct
 {
-  CNtfsFileTime MTime;
-  UInt64 Size;
-  UInt32 Crc;
-  UInt32 Attrib;
-  Byte HasStream;
-  Byte IsDir;
-  Byte IsAnti;
-  Byte CrcDefined;
-  Byte MTimeDefined;
-  Byte AttribDefined;
-} CSzFileItem;
-
-void SzFile_Init(CSzFileItem *p);
+  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
 {
-  UInt64 *PackSizes;
-  Byte *PackCRCsDefined;
-  UInt32 *PackCRCs;
-  CSzFolder *Folders;
-  CSzFileItem *Files;
   UInt32 NumPackStreams;
   UInt32 NumFolders;
-  UInt32 NumFiles;
-} CSzAr;
 
-void SzAr_Init(CSzAr *p);
-void SzAr_Free(CSzAr *p, ISzAlloc *alloc);
+  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
 
-/*
-  SzExtract extracts file from archive
+  Byte *CodersData;
+} CSzAr;
 
-  *outBuffer must be 0 before first call for each new archive.
+UInt64 SzAr_GetFolderUnpackSize(const CSzAr *p, UInt32 folderIndex);
 
-  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.
-*/
+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;
 
-  UInt32 *FolderStartPackStreamIndex;
-  UInt64 *PackStreamStartPositions;
-  UInt32 *FolderStartFileIndex;
-  UInt32 *FileIndexToFolderIndexMap;
+  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 */
-  CBuf FileNames;  /* UTF-16-LE */
+  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])
+
 void SzArEx_Init(CSzArEx *p);
 void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc);
 UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder);
@@ -172,6 +143,33 @@ if dest != NULL, the return value specifies the number of 16-bit characters that
 
 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.
+*/
+
 SRes SzArEx_Extract(
     const CSzArEx *db,
     ILookInStream *inStream,
@@ -196,7 +194,8 @@ SZ_ERROR_INPUT_EOF
 SZ_ERROR_FAIL
 */
 
-SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, ISzAlloc *allocMain, ISzAlloc *allocTemp);
+SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream,
+    ISzAlloc *allocMain, ISzAlloc *allocTemp);
 
 EXTERN_C_END
 
diff --git a/third_party/lzma_sdk/7zAlloc.c b/third_party/lzma_sdk/7zAlloc.c
index 964b28d..3e848c9 100644
--- a/third_party/lzma_sdk/7zAlloc.c
+++ b/third_party/lzma_sdk/7zAlloc.c
@@ -1,5 +1,7 @@
 /* 7zAlloc.c -- Allocation functions
-2010-10-29 : Igor Pavlov : Public domain */
+2015-11-09 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "7zAlloc.h"
 
@@ -20,11 +22,11 @@ int g_allocCountTemp = 0;
 
 void *SzAlloc(void *p, size_t size)
 {
-  p = p;
+  UNUSED_VAR(p);
   if (size == 0)
     return 0;
   #ifdef _SZ_ALLOC_DEBUG
-  fprintf(stderr, "\nAlloc %10d bytes; count = %10d", size, g_allocCount);
+  fprintf(stderr, "\nAlloc %10u bytes; count = %10d", (unsigned)size, g_allocCount);
   g_allocCount++;
   #endif
   return malloc(size);
@@ -32,7 +34,7 @@ void *SzAlloc(void *p, size_t size)
 
 void SzFree(void *p, void *address)
 {
-  p = p;
+  UNUSED_VAR(p);
   #ifdef _SZ_ALLOC_DEBUG
   if (address != 0)
   {
@@ -45,11 +47,11 @@ void SzFree(void *p, void *address)
 
 void *SzAllocTemp(void *p, size_t size)
 {
-  p = p;
+  UNUSED_VAR(p);
   if (size == 0)
     return 0;
   #ifdef _SZ_ALLOC_DEBUG
-  fprintf(stderr, "\nAlloc_temp %10d bytes;  count = %10d", size, g_allocCountTemp);
+  fprintf(stderr, "\nAlloc_temp %10u bytes;  count = %10d", (unsigned)size, g_allocCountTemp);
   g_allocCountTemp++;
   #ifdef _WIN32
   return HeapAlloc(GetProcessHeap(), 0, size);
@@ -60,7 +62,7 @@ void *SzAllocTemp(void *p, size_t size)
 
 void SzFreeTemp(void *p, void *address)
 {
-  p = p;
+  UNUSED_VAR(p);
   #ifdef _SZ_ALLOC_DEBUG
   if (address != 0)
   {
diff --git a/third_party/lzma_sdk/7zAlloc.h b/third_party/lzma_sdk/7zAlloc.h
index 3344e93..2fd5bdb 100644
--- a/third_party/lzma_sdk/7zAlloc.h
+++ b/third_party/lzma_sdk/7zAlloc.h
@@ -1,15 +1,23 @@
 /* 7zAlloc.h -- Allocation functions
-2010-10-29 : Igor Pavlov : Public domain */
+2013-03-25 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_ALLOC_H
 #define __7Z_ALLOC_H
 
 #include <stdlib.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void *SzAlloc(void *p, size_t size);
 void SzFree(void *p, void *address);
 
 void *SzAllocTemp(void *p, size_t size);
 void SzFreeTemp(void *p, void *address);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/third_party/lzma_sdk/7zArcIn.c b/third_party/lzma_sdk/7zArcIn.c
new file mode 100644
index 0000000..06e35de
--- /dev/null
+++ b/third_party/lzma_sdk/7zArcIn.c
@@ -0,0 +1,1770 @@
+/* 7zArcIn.c -- 7z Input functions
+2015-11-18 : 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
+};
+
+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;
+}
+
+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; }
+
+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);
+}
+
+
+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);
+}
+
+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)
+
+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 > (UInt32)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;
+      
+      packStreamIndex += numPackStreams;
+      if (packStreamIndex < numPackStreams)
+        return SZ_ERROR_UNSUPPORTED;
+      
+      if (packStreamIndex > p->NumPackStreams)
+        return SZ_ERROR_ARCHIVE;
+    }
+  }
+
+  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));
+  }
+}
+
+
+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;
+  UInt32 fo;
+  CSubStreamInfo ssi;
+
+  RINOK(SzReadStreamsInfo(p, sd, numFoldersMax, NULL, 0, &dataStartPos, &ssi, allocTemp));
+  
+  dataStartPos += baseOffset;
+  if (p->NumFolders == 0)
+    return SZ_ERROR_ARCHIVE;
+ 
+  for (fo = 0; fo < p->NumFolders; fo++)
+    Buf_Init(tempBufs + fo);
+  
+  for (fo = 0; fo < p->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 < p->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
+    )
+{
+  UInt64 type;
+  UInt32 numFiles = 0;
+  UInt32 numEmptyStreams = 0;
+  CSubStreamInfo ssi;
+  const Byte *emptyStreams = NULL;
+  const Byte *emptyFiles = NULL;
+
+  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 type;
+      RINOK(ReadID(sd, &type));
+      if (type == 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;
+  
+  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;
+}
+
+
+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;
+}
+
+
+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;
+}
+
+
+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;
+}
+
+/*
+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;
+  }
+}
+
+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;
+  }
+}
+*/
diff --git a/third_party/lzma_sdk/7zBuf.c b/third_party/lzma_sdk/7zBuf.c
index 14e7f4e..089a5c4 100644
--- a/third_party/lzma_sdk/7zBuf.c
+++ b/third_party/lzma_sdk/7zBuf.c
@@ -1,7 +1,7 @@
 /* 7zBuf.c -- Byte Buffer
-2008-03-28
-Igor Pavlov
-Public domain */
+2013-01-21 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "7zBuf.h"
 
diff --git a/third_party/lzma_sdk/7zBuf.h b/third_party/lzma_sdk/7zBuf.h
index e9f2f31..65f1d7a 100644
--- a/third_party/lzma_sdk/7zBuf.h
+++ b/third_party/lzma_sdk/7zBuf.h
@@ -1,14 +1,12 @@
 /* 7zBuf.h -- Byte Buffer
-2009-02-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_BUF_H
 #define __7Z_BUF_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 typedef struct
 {
@@ -32,8 +30,6 @@ void DynBuf_SeekToBeg(CDynBuf *p);
 int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc);
 void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/7zCrc.c b/third_party/lzma_sdk/7zCrc.c
index a9208496..dc6d6ab 100644
--- a/third_party/lzma_sdk/7zCrc.c
+++ b/third_party/lzma_sdk/7zCrc.c
@@ -1,5 +1,7 @@
-/* 7zCrc.c -- CRC32 calculation
-2009-11-23 : Igor Pavlov : Public domain */
+/* 7zCrc.c -- CRC32 init
+2015-03-10 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "7zCrc.h"
 #include "CpuArch.h"
@@ -7,34 +9,28 @@
 #define kCrcPoly 0xEDB88320
 
 #ifdef MY_CPU_LE
-#define CRC_NUM_TABLES 8
+  #define CRC_NUM_TABLES 8
 #else
-#define CRC_NUM_TABLES 1
-#endif
-
-typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
-
-static CRC_FUNC g_CrcUpdate;
-UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
+  #define CRC_NUM_TABLES 9
 
-#if CRC_NUM_TABLES == 1
+  #define CRC_UINT32_SWAP(v) ((v >> 24) | ((v >> 8) & 0xFF00) | ((v << 8) & 0xFF0000) | (v << 24))
 
-#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
+  UInt32 MY_FAST_CALL CrcUpdateT1_BeT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
+  UInt32 MY_FAST_CALL CrcUpdateT1_BeT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
+#endif
 
-static UInt32 MY_FAST_CALL CrcUpdateT1(UInt32 v, const void *data, size_t size, const UInt32 *table)
-{
-  const Byte *p = (const Byte *)data;
-  for (; size > 0; size--, p++)
-    v = CRC_UPDATE_BYTE_2(v, *p);
-  return v;
-}
+#ifndef MY_CPU_BE
+  UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
+  UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
+#endif
 
-#else
+typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
 
-UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
-UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
+CRC_FUNC g_CrcUpdateT4;
+CRC_FUNC g_CrcUpdateT8;
+CRC_FUNC g_CrcUpdate;
 
-#endif
+UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
 
 UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
 {
@@ -46,6 +42,17 @@ 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))
+
+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;
+}
+
 void MY_FAST_CALL CrcGenerateTable()
 {
   UInt32 i;
@@ -57,18 +64,65 @@ void MY_FAST_CALL CrcGenerateTable()
       r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
     g_CrcTable[i] = r;
   }
-  #if CRC_NUM_TABLES == 1
-  g_CrcUpdate = CrcUpdateT1;
-  #else
   for (; i < 256 * CRC_NUM_TABLES; i++)
   {
     UInt32 r = g_CrcTable[i - 256];
     g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
   }
-  g_CrcUpdate = CrcUpdateT4;
-  #ifdef MY_CPU_X86_OR_AMD64
-  if (!CPU_Is_InOrder())
-    g_CrcUpdate = CrcUpdateT8;
+
+  #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
 }
diff --git a/third_party/lzma_sdk/7zCrc.h b/third_party/lzma_sdk/7zCrc.h
index 38e3e5f..8fd5795 100644
--- a/third_party/lzma_sdk/7zCrc.h
+++ b/third_party/lzma_sdk/7zCrc.h
@@ -1,10 +1,10 @@
 /* 7zCrc.h -- CRC32 calculation
-2009-11-21 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_CRC_H
 #define __7Z_CRC_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
 EXTERN_C_BEGIN
 
diff --git a/third_party/lzma_sdk/7zCrcOpt.c b/third_party/lzma_sdk/7zCrcOpt.c
index 6c766a2..d1e1cd7 100644
--- a/third_party/lzma_sdk/7zCrcOpt.c
+++ b/third_party/lzma_sdk/7zCrcOpt.c
@@ -1,9 +1,11 @@
-/* 7zCrcOpt.c -- CRC32 calculation : optimized version
-2009-11-23 : Igor Pavlov : Public domain */
+/* 7zCrcOpt.c -- CRC32 calculation
+2015-03-01 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "CpuArch.h"
 
-#ifdef MY_CPU_LE
+#ifndef MY_CPU_BE
 
 #define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
 
@@ -16,10 +18,10 @@ UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const U
   {
     v ^= *(const UInt32 *)p;
     v =
-      table[0x300 + (v & 0xFF)] ^
-      table[0x200 + ((v >> 8) & 0xFF)] ^
-      table[0x100 + ((v >> 16) & 0xFF)] ^
-      table[0x000 + ((v >> 24))];
+          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);
@@ -28,7 +30,86 @@ UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const U
 
 UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table)
 {
-  return CrcUpdateT4(v, data, size, 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))
+
+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);
+}
+
+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
diff --git a/third_party/lzma_sdk/7zDec.c b/third_party/lzma_sdk/7zDec.c
index b6d8099..c45d6bf 100644
--- a/third_party/lzma_sdk/7zDec.c
+++ b/third_party/lzma_sdk/7zDec.c
@@ -1,15 +1,19 @@
 /* 7zDec.c -- Decoding from 7z folder
-2010-11-02 : Igor Pavlov : Public domain */
+2015-11-18 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include <string.h>
 
 /* #define _7ZIP_PPMD_SUPPPORT */
 
 #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
@@ -17,14 +21,17 @@
 #endif
 
 #define k_Copy 0
+#define k_Delta 3
 #define k_LZMA2 0x21
 #define k_LZMA  0x30101
-#define k_BCJ   0x03030103
-#define k_PPC   0x03030205
-#define k_ARM   0x03030501
-#define k_ARMT  0x03030701
-#define k_SPARC 0x03030805
-#define k_BCJ2  0x0303011B
+#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
 
@@ -63,7 +70,7 @@ static Byte ReadByte(void *pp)
   return 0;
 }
 
-static SRes SzDecodePpmd(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
+static SRes SzDecodePpmd(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream,
     Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
 {
   CPpmd7 ppmd;
@@ -77,12 +84,12 @@ static SRes SzDecodePpmd(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
   s.res = SZ_OK;
   s.processed = 0;
 
-  if (coder->Props.size != 5)
+  if (propsSize != 5)
     return SZ_ERROR_UNSUPPORTED;
 
   {
-    unsigned order = coder->Props.data[0];
-    UInt32 memSize = GetUi32(coder->Props.data + 1);
+    unsigned order = props[0];
+    UInt32 memSize = GetUi32(props + 1);
     if (order < PPMD7_MIN_ORDER ||
         order > PPMD7_MAX_ORDER ||
         memSize < PPMD7_MIN_MEM_SIZE ||
@@ -124,25 +131,25 @@ static SRes SzDecodePpmd(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
 #endif
 
 
-static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
+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, coder->Props.data, (unsigned)coder->Props.size, allocMain));
+  RINOK(LzmaDec_AllocateProbs(&state, props, propsSize, allocMain));
   state.dic = outBuffer;
   state.dicBufSize = outSize;
   LzmaDec_Init(&state);
 
   for (;;)
   {
-    Byte *inBuf = NULL;
+    const void *inBuf = NULL;
     size_t lookahead = (1 << 18);
     if (lookahead > inSize)
       lookahead = (size_t)inSize;
-    res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
+    res = inStream->Look(inStream, &inBuf, &lookahead);
     if (res != SZ_OK)
       break;
 
@@ -154,14 +161,23 @@ static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
       inSize -= inProcessed;
       if (res != SZ_OK)
         break;
-      if (state.dicPos == state.dicBufSize || (inProcessed == 0 && dicPos == state.dicPos))
+
+      if (status == LZMA_STATUS_FINISHED_WITH_MARK)
       {
-        if (state.dicBufSize != outSize || lookahead != 0 ||
-            (status != LZMA_STATUS_FINISHED_WITH_MARK &&
-             status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_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;
@@ -172,27 +188,30 @@ static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
   return res;
 }
 
-static SRes SzDecodeLzma2(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
+
+#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 (coder->Props.size != 1)
+  if (propsSize != 1)
     return SZ_ERROR_DATA;
-  RINOK(Lzma2Dec_AllocateProbs(&state, coder->Props.data[0], allocMain));
+  RINOK(Lzma2Dec_AllocateProbs(&state, props[0], allocMain));
   state.decoder.dic = outBuffer;
   state.decoder.dicBufSize = outSize;
   Lzma2Dec_Init(&state);
 
   for (;;)
   {
-    Byte *inBuf = NULL;
+    const void *inBuf = NULL;
     size_t lookahead = (1 << 18);
     if (lookahead > inSize)
       lookahead = (size_t)inSize;
-    res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
+    res = inStream->Look(inStream, &inBuf, &lookahead);
     if (res != SZ_OK)
       break;
 
@@ -204,13 +223,20 @@ static SRes SzDecodeLzma2(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inS
       inSize -= inProcessed;
       if (res != SZ_OK)
         break;
-      if (state.decoder.dicPos == state.decoder.dicBufSize || (inProcessed == 0 && dicPos == state.decoder.dicPos))
+
+      if (status == LZMA_STATUS_FINISHED_WITH_MARK)
       {
-        if (state.decoder.dicBufSize != outSize || lookahead != 0 ||
-            (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;
@@ -221,15 +247,18 @@ static SRes SzDecodeLzma2(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inS
   return res;
 }
 
+#endif
+
+
 static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer)
 {
   while (inSize > 0)
   {
-    void *inBuf;
+    const void *inBuf;
     size_t curSize = (1 << 18);
     if (curSize > inSize)
       curSize = (size_t)inSize;
-    RINOK(inStream->Look((void *)inStream, (const void **)&inBuf, &curSize));
+    RINOK(inStream->Look(inStream, &inBuf, &curSize));
     if (curSize == 0)
       return SZ_ERROR_INPUT_EOF;
     memcpy(outBuffer, inBuf, curSize);
@@ -242,11 +271,13 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
 
 static Bool IS_MAIN_METHOD(UInt32 m)
 {
-  switch(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
@@ -258,13 +289,12 @@ static Bool IS_MAIN_METHOD(UInt32 m)
 static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)
 {
   return
-      c->NumInStreams == 1 &&
-      c->NumOutStreams == 1 &&
-      c->MethodID <= (UInt32)0xFFFFFFFF &&
-      IS_MAIN_METHOD((UInt32)c->MethodID);
+      c->NumStreams == 1
+      /* && c->MethodID <= (UInt32)0xFFFFFFFF */
+      && IS_MAIN_METHOD((UInt32)c->MethodID);
 }
 
-#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumInStreams == 4 && (c)->NumOutStreams == 1)
+#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumStreams == 4)
 
 static SRes CheckSupportedFolder(const CSzFolder *f)
 {
@@ -274,65 +304,73 @@ static SRes CheckSupportedFolder(const CSzFolder *f)
     return SZ_ERROR_UNSUPPORTED;
   if (f->NumCoders == 1)
   {
-    if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBindPairs != 0)
+    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)
   {
-    CSzCoderInfo *c = &f->Coders[1];
-    if (c->MethodID > (UInt32)0xFFFFFFFF ||
-        c->NumInStreams != 1 ||
-        c->NumOutStreams != 1 ||
-        f->NumPackStreams != 1 ||
-        f->PackStreams[0] != 0 ||
-        f->NumBindPairs != 1 ||
-        f->BindPairs[0].InIndex != 1 ||
-        f->BindPairs[0].OutIndex != 0)
+    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]))
+    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->NumBindPairs != 3 ||
-        f->BindPairs[0].InIndex != 5 || f->BindPairs[0].OutIndex != 0 ||
-        f->BindPairs[1].InIndex != 4 || f->BindPairs[1].OutIndex != 1 ||
-        f->BindPairs[2].InIndex != 3 || f->BindPairs[2].OutIndex != 2)
+    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;
 }
 
-static UInt64 GetSum(const UInt64 *values, UInt32 index)
-{
-  UInt64 sum = 0;
-  UInt32 i;
-  for (i = 0; i < index; i++)
-    sum += values[i];
-  return sum;
-}
-
 #define CASE_BRA_CONV(isa) case k_ ## isa: isa ## _Convert(outBuffer, outSize, 0, 0); break;
 
-static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
+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[])
@@ -346,7 +384,7 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
 
   for (ci = 0; ci < folder->NumCoders; ci++)
   {
-    CSzCoderInfo *coder = &folder->Coders[ci];
+    const CSzCoderInfo *coder = &folder->Coders[ci];
 
     if (IS_MAIN_METHOD((UInt32)coder->MethodID))
     {
@@ -358,7 +396,7 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
       if (folder->NumCoders == 4)
       {
         UInt32 indices[] = { 3, 2, 0 };
-        UInt64 unpackSize = folder->UnpackSizes[ci];
+        UInt64 unpackSize = unpackSizes[ci];
         si = indices[ci];
         if (ci < 2)
         {
@@ -367,7 +405,7 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
           if (outSizeCur != unpackSize)
             return SZ_ERROR_MEM;
           temp = (Byte *)IAlloc_Alloc(allocMain, outSizeCur);
-          if (temp == 0 && outSizeCur != 0)
+          if (!temp && outSizeCur != 0)
             return SZ_ERROR_MEM;
           outBufCur = tempBuf[1 - ci] = temp;
           tempSizes[1 - ci] = outSizeCur;
@@ -382,8 +420,8 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
         else
           return SZ_ERROR_UNSUPPORTED;
       }
-      offset = GetSum(packSizes, si);
-      inSize = packSizes[si];
+      offset = packPositions[si];
+      inSize = packPositions[si + 1] - offset;
       RINOK(LookInStream_SeekTo(inStream, startPos + offset));
 
       if (coder->MethodID == k_Copy)
@@ -394,77 +432,160 @@ static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
       }
       else if (coder->MethodID == k_LZMA)
       {
-        RINOK(SzDecodeLzma(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
+        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(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
+        RINOK(SzDecodeLzma2(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));
       }
-      else
+      #endif
+      #ifdef _7ZIP_PPMD_SUPPPORT
+      else if (coder->MethodID == k_PPMD)
       {
-        #ifdef _7ZIP_PPMD_SUPPPORT
-        RINOK(SzDecodePpmd(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
-        #else
-        return SZ_ERROR_UNSUPPORTED;
-        #endif
+        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 = GetSum(packSizes, 1);
-      UInt64 s3Size = packSizes[1];
-      SRes res;
+      UInt64 offset = packPositions[1];
+      UInt64 s3Size = packPositions[2] - offset;
+      
       if (ci != 3)
         return SZ_ERROR_UNSUPPORTED;
-      RINOK(LookInStream_SeekTo(inStream, startPos + offset));
+      
       tempSizes[2] = (SizeT)s3Size;
       if (tempSizes[2] != s3Size)
         return SZ_ERROR_MEM;
       tempBuf[2] = (Byte *)IAlloc_Alloc(allocMain, tempSizes[2]);
-      if (tempBuf[2] == 0 && tempSizes[2] != 0)
+      if (!tempBuf[2] && tempSizes[2] != 0)
         return SZ_ERROR_MEM;
-      res = SzDecodeCopy(s3Size, inStream, tempBuf[2]);
-      RINOK(res)
-
-      res = Bcj2_Decode(
-          tempBuf3, tempSize3,
-          tempBuf[0], tempSizes[0],
-          tempBuf[1], tempSizes[1],
-          tempBuf[2], tempSizes[2],
-          outBuffer, outSize);
-      RINOK(res)
+      
+      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;
+        }
+      }
     }
-    else
+    #ifndef _7Z_NO_METHODS_FILTERS
+    else if (ci == 1)
     {
-      if (ci != 1)
-        return SZ_ERROR_UNSUPPORTED;
-      switch(coder->MethodID)
+      if (coder->MethodID == k_Delta)
       {
-        case k_BCJ:
+        if (coder->PropsSize != 1)
+          return SZ_ERROR_UNSUPPORTED;
         {
-          UInt32 state;
-          x86_Convert_Init(state);
-          x86_Convert(outBuffer, outSize, 0, &state, 0);
-          break;
+          Byte state[DELTA_STATE_SIZE];
+          Delta_Init(state);
+          Delta_Decode(state, (unsigned)(propsData[coder->PropsOffset]) + 1, outBuffer, outSize);
         }
-        CASE_BRA_CONV(ARM)
-        default:
+      }
+      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;
 }
 
-SRes SzFolder_Decode(const CSzFolder *folder, const UInt64 *packSizes,
+
+SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex,
     ILookInStream *inStream, UInt64 startPos,
-    Byte *outBuffer, size_t outSize, ISzAlloc *allocMain)
+    Byte *outBuffer, size_t outSize,
+    ISzAlloc *allocMain)
 {
-  Byte *tempBuf[3] = { 0, 0, 0};
-  int i;
-  SRes res = SzFolder_Decode2(folder, packSizes, inStream, startPos,
-      outBuffer, (SizeT)outSize, allocMain, tempBuf);
-  for (i = 0; i < 3; i++)
-    IAlloc_Free(allocMain, tempBuf[i]);
-  return res;
+  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;
+  }
 }
diff --git a/third_party/lzma_sdk/7zFile.c b/third_party/lzma_sdk/7zFile.c
index a66c9e9..041e5b1 100644
--- a/third_party/lzma_sdk/7zFile.c
+++ b/third_party/lzma_sdk/7zFile.c
@@ -1,6 +1,8 @@
 /* 7zFile.c -- File IO
 2009-11-24 : Igor Pavlov : Public domain */
 
+#include "Precomp.h"
+
 #include "7zFile.h"
 
 #ifndef USE_WINDOWS_FILE
diff --git a/third_party/lzma_sdk/7zFile.h b/third_party/lzma_sdk/7zFile.h
index 84538c0..658987e 100644
--- a/third_party/lzma_sdk/7zFile.h
+++ b/third_party/lzma_sdk/7zFile.h
@@ -1,5 +1,5 @@
 /* 7zFile.h -- File IO
-2009-11-24 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_FILE_H
 #define __7Z_FILE_H
@@ -14,7 +14,7 @@
 #include <stdio.h>
 #endif
 
-#include "Types.h"
+#include "7zTypes.h"
 
 EXTERN_C_BEGIN
 
diff --git a/third_party/lzma_sdk/7zIn.c b/third_party/lzma_sdk/7zIn.c
deleted file mode 100644
index ec93a43..0000000
--- a/third_party/lzma_sdk/7zIn.c
+++ /dev/null
@@ -1,1402 +0,0 @@
-/* 7zIn.c -- 7z Input functions
-2010-10-29 : Igor Pavlov : Public domain */
-
-#include <string.h>
-
-#include "7z.h"
-#include "7zCrc.h"
-#include "CpuArch.h"
-
-Byte k7zSignature[k7zSignatureSize] = {'7', 'z', 0xBC, 0xAF, 0x27, 0x1C};
-
-#define RINOM(x) { if ((x) == 0) return SZ_ERROR_MEM; }
-
-#define NUM_FOLDER_CODERS_MAX 32
-#define NUM_CODER_STREAMS_MAX 32
-
-void SzCoderInfo_Init(CSzCoderInfo *p)
-{
-  Buf_Init(&p->Props);
-}
-
-void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc)
-{
-  Buf_Free(&p->Props, alloc);
-  SzCoderInfo_Init(p);
-}
-
-void SzFolder_Init(CSzFolder *p)
-{
-  p->Coders = 0;
-  p->BindPairs = 0;
-  p->PackStreams = 0;
-  p->UnpackSizes = 0;
-  p->NumCoders = 0;
-  p->NumBindPairs = 0;
-  p->NumPackStreams = 0;
-  p->UnpackCRCDefined = 0;
-  p->UnpackCRC = 0;
-  p->NumUnpackStreams = 0;
-}
-
-void SzFolder_Free(CSzFolder *p, ISzAlloc *alloc)
-{
-  UInt32 i;
-  if (p->Coders)
-    for (i = 0; i < p->NumCoders; i++)
-      SzCoderInfo_Free(&p->Coders[i], alloc);
-  IAlloc_Free(alloc, p->Coders);
-  IAlloc_Free(alloc, p->BindPairs);
-  IAlloc_Free(alloc, p->PackStreams);
-  IAlloc_Free(alloc, p->UnpackSizes);
-  SzFolder_Init(p);
-}
-
-UInt32 SzFolder_GetNumOutStreams(CSzFolder *p)
-{
-  UInt32 result = 0;
-  UInt32 i;
-  for (i = 0; i < p->NumCoders; i++)
-    result += p->Coders[i].NumOutStreams;
-  return result;
-}
-
-int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex)
-{
-  UInt32 i;
-  for (i = 0; i < p->NumBindPairs; i++)
-    if (p->BindPairs[i].InIndex == inStreamIndex)
-      return i;
-  return -1;
-}
-
-
-int SzFolder_FindBindPairForOutStream(CSzFolder *p, UInt32 outStreamIndex)
-{
-  UInt32 i;
-  for (i = 0; i < p->NumBindPairs; i++)
-    if (p->BindPairs[i].OutIndex == outStreamIndex)
-      return i;
-  return -1;
-}
-
-UInt64 SzFolder_GetUnpackSize(CSzFolder *p)
-{
-  int i = (int)SzFolder_GetNumOutStreams(p);
-  if (i == 0)
-    return 0;
-  for (i--; i >= 0; i--)
-    if (SzFolder_FindBindPairForOutStream(p, i) < 0)
-      return p->UnpackSizes[i];
-  /* throw 1; */
-  return 0;
-}
-
-void SzFile_Init(CSzFileItem *p)
-{
-  p->HasStream = 1;
-  p->IsDir = 0;
-  p->IsAnti = 0;
-  p->CrcDefined = 0;
-  p->MTimeDefined = 0;
-}
-
-void SzAr_Init(CSzAr *p)
-{
-  p->PackSizes = 0;
-  p->PackCRCsDefined = 0;
-  p->PackCRCs = 0;
-  p->Folders = 0;
-  p->Files = 0;
-  p->NumPackStreams = 0;
-  p->NumFolders = 0;
-  p->NumFiles = 0;
-}
-
-void SzAr_Free(CSzAr *p, ISzAlloc *alloc)
-{
-  UInt32 i;
-  if (p->Folders)
-    for (i = 0; i < p->NumFolders; i++)
-      SzFolder_Free(&p->Folders[i], alloc);
-
-  IAlloc_Free(alloc, p->PackSizes);
-  IAlloc_Free(alloc, p->PackCRCsDefined);
-  IAlloc_Free(alloc, p->PackCRCs);
-  IAlloc_Free(alloc, p->Folders);
-  IAlloc_Free(alloc, p->Files);
-  SzAr_Init(p);
-}
-
-
-void SzArEx_Init(CSzArEx *p)
-{
-  SzAr_Init(&p->db);
-  p->FolderStartPackStreamIndex = 0;
-  p->PackStreamStartPositions = 0;
-  p->FolderStartFileIndex = 0;
-  p->FileIndexToFolderIndexMap = 0;
-  p->FileNameOffsets = 0;
-  Buf_Init(&p->FileNames);
-}
-
-void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc)
-{
-  IAlloc_Free(alloc, p->FolderStartPackStreamIndex);
-  IAlloc_Free(alloc, p->PackStreamStartPositions);
-  IAlloc_Free(alloc, p->FolderStartFileIndex);
-  IAlloc_Free(alloc, p->FileIndexToFolderIndexMap);
-
-  IAlloc_Free(alloc, p->FileNameOffsets);
-  Buf_Free(&p->FileNames, alloc);
-
-  SzAr_Free(&p->db, alloc);
-  SzArEx_Init(p);
-}
-
-/*
-UInt64 GetFolderPackStreamSize(int folderIndex, int streamIndex) const
-{
-  return PackSizes[FolderStartPackStreamIndex[folderIndex] + streamIndex];
-}
-
-UInt64 GetFilePackSize(int fileIndex) const
-{
-  int folderIndex = FileIndexToFolderIndexMap[fileIndex];
-  if (folderIndex >= 0)
-  {
-    const CSzFolder &folderInfo = Folders[folderIndex];
-    if (FolderStartFileIndex[folderIndex] == fileIndex)
-    return GetFolderFullPackSize(folderIndex);
-  }
-  return 0;
-}
-*/
-
-#define MY_ALLOC(T, p, size, alloc) { if ((size) == 0) p = 0; else \
-  if ((p = (T *)IAlloc_Alloc(alloc, (size) * sizeof(T))) == 0) return SZ_ERROR_MEM; }
-
-static SRes SzArEx_Fill(CSzArEx *p, ISzAlloc *alloc)
-{
-  UInt32 startPos = 0;
-  UInt64 startPosSize = 0;
-  UInt32 i;
-  UInt32 folderIndex = 0;
-  UInt32 indexInFolder = 0;
-  MY_ALLOC(UInt32, p->FolderStartPackStreamIndex, p->db.NumFolders, alloc);
-  for (i = 0; i < p->db.NumFolders; i++)
-  {
-    p->FolderStartPackStreamIndex[i] = startPos;
-    startPos += p->db.Folders[i].NumPackStreams;
-  }
-
-  MY_ALLOC(UInt64, p->PackStreamStartPositions, p->db.NumPackStreams, alloc);
-
-  for (i = 0; i < p->db.NumPackStreams; i++)
-  {
-    p->PackStreamStartPositions[i] = startPosSize;
-    startPosSize += p->db.PackSizes[i];
-  }
-
-  MY_ALLOC(UInt32, p->FolderStartFileIndex, p->db.NumFolders, alloc);
-  MY_ALLOC(UInt32, p->FileIndexToFolderIndexMap, p->db.NumFiles, alloc);
-
-  for (i = 0; i < p->db.NumFiles; i++)
-  {
-    CSzFileItem *file = p->db.Files + i;
-    int emptyStream = !file->HasStream;
-    if (emptyStream && indexInFolder == 0)
-    {
-      p->FileIndexToFolderIndexMap[i] = (UInt32)-1;
-      continue;
-    }
-    if (indexInFolder == 0)
-    {
-      /*
-      v3.13 incorrectly worked with empty folders
-      v4.07: Loop for skipping empty folders
-      */
-      for (;;)
-      {
-        if (folderIndex >= p->db.NumFolders)
-          return SZ_ERROR_ARCHIVE;
-        p->FolderStartFileIndex[folderIndex] = i;
-        if (p->db.Folders[folderIndex].NumUnpackStreams != 0)
-          break;
-        folderIndex++;
-      }
-    }
-    p->FileIndexToFolderIndexMap[i] = folderIndex;
-    if (emptyStream)
-      continue;
-    indexInFolder++;
-    if (indexInFolder >= p->db.Folders[folderIndex].NumUnpackStreams)
-    {
-      folderIndex++;
-      indexInFolder = 0;
-    }
-  }
-  return SZ_OK;
-}
-
-
-UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder)
-{
-  return p->dataPos +
-    p->PackStreamStartPositions[p->FolderStartPackStreamIndex[folderIndex] + indexInFolder];
-}
-
-int SzArEx_GetFolderFullPackSize(const CSzArEx *p, UInt32 folderIndex, UInt64 *resSize)
-{
-  UInt32 packStreamIndex = p->FolderStartPackStreamIndex[folderIndex];
-  CSzFolder *folder = p->db.Folders + folderIndex;
-  UInt64 size = 0;
-  UInt32 i;
-  for (i = 0; i < folder->NumPackStreams; i++)
-  {
-    UInt64 t = size + p->db.PackSizes[packStreamIndex + i];
-    if (t < size) /* check it */
-      return SZ_ERROR_FAIL;
-    size = t;
-  }
-  *resSize = size;
-  return SZ_OK;
-}
-
-
-/*
-SRes SzReadTime(const CObjectVector<CBuf> &dataVector,
-    CObjectVector<CSzFileItem> &files, UInt64 type)
-{
-  CBoolVector boolVector;
-  RINOK(ReadBoolVector2(files.Size(), boolVector))
-
-  CStreamSwitch streamSwitch;
-  RINOK(streamSwitch.Set(this, &dataVector));
-
-  for (int i = 0; i < files.Size(); i++)
-  {
-    CSzFileItem &file = files[i];
-    CArchiveFileTime fileTime;
-    bool defined = boolVector[i];
-    if (defined)
-    {
-      UInt32 low, high;
-      RINOK(SzReadUInt32(low));
-      RINOK(SzReadUInt32(high));
-      fileTime.dwLowDateTime = low;
-      fileTime.dwHighDateTime = high;
-    }
-    switch(type)
-    {
-      case k7zIdCTime: file.IsCTimeDefined = defined; if (defined) file.CTime = fileTime; break;
-      case k7zIdATime: file.IsATimeDefined = defined; if (defined) file.ATime = fileTime; break;
-      case k7zIdMTime: file.IsMTimeDefined = defined; if (defined) file.MTime = fileTime; break;
-    }
-  }
-  return SZ_OK;
-}
-*/
-
-static int TestSignatureCandidate(Byte *testBytes)
-{
-  size_t i;
-  for (i = 0; i < k7zSignatureSize; i++)
-    if (testBytes[i] != k7zSignature[i])
-      return 0;
-  return 1;
-}
-
-typedef struct _CSzState
-{
-  Byte *Data;
-  size_t Size;
-}CSzData;
-
-static SRes SzReadByte(CSzData *sd, Byte *b)
-{
-  if (sd->Size == 0)
-    return SZ_ERROR_ARCHIVE;
-  sd->Size--;
-  *b = *sd->Data++;
-  return SZ_OK;
-}
-
-static SRes SzReadBytes(CSzData *sd, Byte *data, size_t size)
-{
-  size_t i;
-  for (i = 0; i < size; i++)
-  {
-    RINOK(SzReadByte(sd, data + i));
-  }
-  return SZ_OK;
-}
-
-static SRes SzReadUInt32(CSzData *sd, UInt32 *value)
-{
-  int i;
-  *value = 0;
-  for (i = 0; i < 4; i++)
-  {
-    Byte b;
-    RINOK(SzReadByte(sd, &b));
-    *value |= ((UInt32)(b) << (8 * i));
-  }
-  return SZ_OK;
-}
-
-static SRes SzReadNumber(CSzData *sd, UInt64 *value)
-{
-  Byte firstByte;
-  Byte mask = 0x80;
-  int i;
-  RINOK(SzReadByte(sd, &firstByte));
-  *value = 0;
-  for (i = 0; i < 8; i++)
-  {
-    Byte b;
-    if ((firstByte & mask) == 0)
-    {
-      UInt64 highPart = firstByte & (mask - 1);
-      *value += (highPart << (8 * i));
-      return SZ_OK;
-    }
-    RINOK(SzReadByte(sd, &b));
-    *value |= ((UInt64)b << (8 * i));
-    mask >>= 1;
-  }
-  return SZ_OK;
-}
-
-static SRes SzReadNumber32(CSzData *sd, UInt32 *value)
-{
-  UInt64 value64;
-  RINOK(SzReadNumber(sd, &value64));
-  if (value64 >= 0x80000000)
-    return SZ_ERROR_UNSUPPORTED;
-  if (value64 >= ((UInt64)(1) << ((sizeof(size_t) - 1) * 8 + 2)))
-    return SZ_ERROR_UNSUPPORTED;
-  *value = (UInt32)value64;
-  return SZ_OK;
-}
-
-static SRes SzReadID(CSzData *sd, UInt64 *value)
-{
-  return SzReadNumber(sd, value);
-}
-
-static SRes SzSkeepDataSize(CSzData *sd, UInt64 size)
-{
-  if (size > sd->Size)
-    return SZ_ERROR_ARCHIVE;
-  sd->Size -= (size_t)size;
-  sd->Data += (size_t)size;
-  return SZ_OK;
-}
-
-static SRes SzSkeepData(CSzData *sd)
-{
-  UInt64 size;
-  RINOK(SzReadNumber(sd, &size));
-  return SzSkeepDataSize(sd, size);
-}
-
-static SRes SzReadArchiveProperties(CSzData *sd)
-{
-  for (;;)
-  {
-    UInt64 type;
-    RINOK(SzReadID(sd, &type));
-    if (type == k7zIdEnd)
-      break;
-    SzSkeepData(sd);
-  }
-  return SZ_OK;
-}
-
-static SRes SzWaitAttribute(CSzData *sd, UInt64 attribute)
-{
-  for (;;)
-  {
-    UInt64 type;
-    RINOK(SzReadID(sd, &type));
-    if (type == attribute)
-      return SZ_OK;
-    if (type == k7zIdEnd)
-      return SZ_ERROR_ARCHIVE;
-    RINOK(SzSkeepData(sd));
-  }
-}
-
-static SRes SzReadBoolVector(CSzData *sd, size_t numItems, Byte **v, ISzAlloc *alloc)
-{
-  Byte b = 0;
-  Byte mask = 0;
-  size_t i;
-  MY_ALLOC(Byte, *v, numItems, alloc);
-  for (i = 0; i < numItems; i++)
-  {
-    if (mask == 0)
-    {
-      RINOK(SzReadByte(sd, &b));
-      mask = 0x80;
-    }
-    (*v)[i] = (Byte)(((b & mask) != 0) ? 1 : 0);
-    mask >>= 1;
-  }
-  return SZ_OK;
-}
-
-static SRes SzReadBoolVector2(CSzData *sd, size_t numItems, Byte **v, ISzAlloc *alloc)
-{
-  Byte allAreDefined;
-  size_t i;
-  RINOK(SzReadByte(sd, &allAreDefined));
-  if (allAreDefined == 0)
-    return SzReadBoolVector(sd, numItems, v, alloc);
-  MY_ALLOC(Byte, *v, numItems, alloc);
-  for (i = 0; i < numItems; i++)
-    (*v)[i] = 1;
-  return SZ_OK;
-}
-
-static SRes SzReadHashDigests(
-    CSzData *sd,
-    size_t numItems,
-    Byte **digestsDefined,
-    UInt32 **digests,
-    ISzAlloc *alloc)
-{
-  size_t i;
-  RINOK(SzReadBoolVector2(sd, numItems, digestsDefined, alloc));
-  MY_ALLOC(UInt32, *digests, numItems, alloc);
-  for (i = 0; i < numItems; i++)
-    if ((*digestsDefined)[i])
-    {
-      RINOK(SzReadUInt32(sd, (*digests) + i));
-    }
-  return SZ_OK;
-}
-
-static SRes SzReadPackInfo(
-    CSzData *sd,
-    UInt64 *dataOffset,
-    UInt32 *numPackStreams,
-    UInt64 **packSizes,
-    Byte **packCRCsDefined,
-    UInt32 **packCRCs,
-    ISzAlloc *alloc)
-{
-  UInt32 i;
-  RINOK(SzReadNumber(sd, dataOffset));
-  RINOK(SzReadNumber32(sd, numPackStreams));
-
-  RINOK(SzWaitAttribute(sd, k7zIdSize));
-
-  MY_ALLOC(UInt64, *packSizes, (size_t)*numPackStreams, alloc);
-
-  for (i = 0; i < *numPackStreams; i++)
-  {
-    RINOK(SzReadNumber(sd, (*packSizes) + i));
-  }
-
-  for (;;)
-  {
-    UInt64 type;
-    RINOK(SzReadID(sd, &type));
-    if (type == k7zIdEnd)
-      break;
-    if (type == k7zIdCRC)
-    {
-      RINOK(SzReadHashDigests(sd, (size_t)*numPackStreams, packCRCsDefined, packCRCs, alloc));
-      continue;
-    }
-    RINOK(SzSkeepData(sd));
-  }
-  if (*packCRCsDefined == 0)
-  {
-    MY_ALLOC(Byte, *packCRCsDefined, (size_t)*numPackStreams, alloc);
-    MY_ALLOC(UInt32, *packCRCs, (size_t)*numPackStreams, alloc);
-    for (i = 0; i < *numPackStreams; i++)
-    {
-      (*packCRCsDefined)[i] = 0;
-      (*packCRCs)[i] = 0;
-    }
-  }
-  return SZ_OK;
-}
-
-static SRes SzReadSwitch(CSzData *sd)
-{
-  Byte external;
-  RINOK(SzReadByte(sd, &external));
-  return (external == 0) ? SZ_OK: SZ_ERROR_UNSUPPORTED;
-}
-
-static SRes SzGetNextFolderItem(CSzData *sd, CSzFolder *folder, ISzAlloc *alloc)
-{
-  UInt32 numCoders, numBindPairs, numPackStreams, i;
-  UInt32 numInStreams = 0, numOutStreams = 0;
-  
-  RINOK(SzReadNumber32(sd, &numCoders));
-  if (numCoders > NUM_FOLDER_CODERS_MAX)
-    return SZ_ERROR_UNSUPPORTED;
-  folder->NumCoders = numCoders;
-  
-  MY_ALLOC(CSzCoderInfo, folder->Coders, (size_t)numCoders, alloc);
-
-  for (i = 0; i < numCoders; i++)
-    SzCoderInfo_Init(folder->Coders + i);
-
-  for (i = 0; i < numCoders; i++)
-  {
-    Byte mainByte;
-    CSzCoderInfo *coder = folder->Coders + i;
-    {
-      unsigned idSize, j;
-      Byte longID[15];
-      RINOK(SzReadByte(sd, &mainByte));
-      idSize = (unsigned)(mainByte & 0xF);
-      RINOK(SzReadBytes(sd, longID, idSize));
-      if (idSize > sizeof(coder->MethodID))
-        return SZ_ERROR_UNSUPPORTED;
-      coder->MethodID = 0;
-      for (j = 0; j < idSize; j++)
-        coder->MethodID |= (UInt64)longID[idSize - 1 - j] << (8 * j);
-
-      if ((mainByte & 0x10) != 0)
-      {
-        RINOK(SzReadNumber32(sd, &coder->NumInStreams));
-        RINOK(SzReadNumber32(sd, &coder->NumOutStreams));
-        if (coder->NumInStreams > NUM_CODER_STREAMS_MAX ||
-            coder->NumOutStreams > NUM_CODER_STREAMS_MAX)
-          return SZ_ERROR_UNSUPPORTED;
-      }
-      else
-      {
-        coder->NumInStreams = 1;
-        coder->NumOutStreams = 1;
-      }
-      if ((mainByte & 0x20) != 0)
-      {
-        UInt64 propertiesSize = 0;
-        RINOK(SzReadNumber(sd, &propertiesSize));
-        if (!Buf_Create(&coder->Props, (size_t)propertiesSize, alloc))
-          return SZ_ERROR_MEM;
-        RINOK(SzReadBytes(sd, coder->Props.data, (size_t)propertiesSize));
-      }
-    }
-    while ((mainByte & 0x80) != 0)
-    {
-      RINOK(SzReadByte(sd, &mainByte));
-      RINOK(SzSkeepDataSize(sd, (mainByte & 0xF)));
-      if ((mainByte & 0x10) != 0)
-      {
-        UInt32 n;
-        RINOK(SzReadNumber32(sd, &n));
-        RINOK(SzReadNumber32(sd, &n));
-      }
-      if ((mainByte & 0x20) != 0)
-      {
-        UInt64 propertiesSize = 0;
-        RINOK(SzReadNumber(sd, &propertiesSize));
-        RINOK(SzSkeepDataSize(sd, propertiesSize));
-      }
-    }
-    numInStreams += coder->NumInStreams;
-    numOutStreams += coder->NumOutStreams;
-  }
-
-  if (numOutStreams == 0)
-    return SZ_ERROR_UNSUPPORTED;
-
-  folder->NumBindPairs = numBindPairs = numOutStreams - 1;
-  MY_ALLOC(CSzBindPair, folder->BindPairs, (size_t)numBindPairs, alloc);
-
-  for (i = 0; i < numBindPairs; i++)
-  {
-    CSzBindPair *bp = folder->BindPairs + i;
-    RINOK(SzReadNumber32(sd, &bp->InIndex));
-    RINOK(SzReadNumber32(sd, &bp->OutIndex));
-  }
-
-  if (numInStreams < numBindPairs)
-    return SZ_ERROR_UNSUPPORTED;
-
-  folder->NumPackStreams = numPackStreams = numInStreams - numBindPairs;
-  MY_ALLOC(UInt32, folder->PackStreams, (size_t)numPackStreams, alloc);
-
-  if (numPackStreams == 1)
-  {
-    for (i = 0; i < numInStreams ; i++)
-      if (SzFolder_FindBindPairForInStream(folder, i) < 0)
-        break;
-    if (i == numInStreams)
-      return SZ_ERROR_UNSUPPORTED;
-    folder->PackStreams[0] = i;
-  }
-  else
-    for (i = 0; i < numPackStreams; i++)
-    {
-      RINOK(SzReadNumber32(sd, folder->PackStreams + i));
-    }
-  return SZ_OK;
-}
-
-static SRes SzReadUnpackInfo(
-    CSzData *sd,
-    UInt32 *numFolders,
-    CSzFolder **folders,  /* for alloc */
-    ISzAlloc *alloc,
-    ISzAlloc *allocTemp)
-{
-  UInt32 i;
-  RINOK(SzWaitAttribute(sd, k7zIdFolder));
-  RINOK(SzReadNumber32(sd, numFolders));
-  {
-    RINOK(SzReadSwitch(sd));
-
-    MY_ALLOC(CSzFolder, *folders, (size_t)*numFolders, alloc);
-
-    for (i = 0; i < *numFolders; i++)
-      SzFolder_Init((*folders) + i);
-
-    for (i = 0; i < *numFolders; i++)
-    {
-      RINOK(SzGetNextFolderItem(sd, (*folders) + i, alloc));
-    }
-  }
-
-  RINOK(SzWaitAttribute(sd, k7zIdCodersUnpackSize));
-
-  for (i = 0; i < *numFolders; i++)
-  {
-    UInt32 j;
-    CSzFolder *folder = (*folders) + i;
-    UInt32 numOutStreams = SzFolder_GetNumOutStreams(folder);
-
-    MY_ALLOC(UInt64, folder->UnpackSizes, (size_t)numOutStreams, alloc);
-
-    for (j = 0; j < numOutStreams; j++)
-    {
-      RINOK(SzReadNumber(sd, folder->UnpackSizes + j));
-    }
-  }
-
-  for (;;)
-  {
-    UInt64 type;
-    RINOK(SzReadID(sd, &type));
-    if (type == k7zIdEnd)
-      return SZ_OK;
-    if (type == k7zIdCRC)
-    {
-      SRes res;
-      Byte *crcsDefined = 0;
-      UInt32 *crcs = 0;
-      res = SzReadHashDigests(sd, *numFolders, &crcsDefined, &crcs, allocTemp);
-      if (res == SZ_OK)
-      {
-        for (i = 0; i < *numFolders; i++)
-        {
-          CSzFolder *folder = (*folders) + i;
-          folder->UnpackCRCDefined = crcsDefined[i];
-          folder->UnpackCRC = crcs[i];
-        }
-      }
-      IAlloc_Free(allocTemp, crcs);
-      IAlloc_Free(allocTemp, crcsDefined);
-      RINOK(res);
-      continue;
-    }
-    RINOK(SzSkeepData(sd));
-  }
-}
-
-static SRes SzReadSubStreamsInfo(
-    CSzData *sd,
-    UInt32 numFolders,
-    CSzFolder *folders,
-    UInt32 *numUnpackStreams,
-    UInt64 **unpackSizes,
-    Byte **digestsDefined,
-    UInt32 **digests,
-    ISzAlloc *allocTemp)
-{
-  UInt64 type = 0;
-  UInt32 i;
-  UInt32 si = 0;
-  UInt32 numDigests = 0;
-
-  for (i = 0; i < numFolders; i++)
-    folders[i].NumUnpackStreams = 1;
-  *numUnpackStreams = numFolders;
-
-  for (;;)
-  {
-    RINOK(SzReadID(sd, &type));
-    if (type == k7zIdNumUnpackStream)
-    {
-      *numUnpackStreams = 0;
-      for (i = 0; i < numFolders; i++)
-      {
-        UInt32 numStreams;
-        RINOK(SzReadNumber32(sd, &numStreams));
-        folders[i].NumUnpackStreams = numStreams;
-        *numUnpackStreams += numStreams;
-      }
-      continue;
-    }
-    if (type == k7zIdCRC || type == k7zIdSize)
-      break;
-    if (type == k7zIdEnd)
-      break;
-    RINOK(SzSkeepData(sd));
-  }
-
-  if (*numUnpackStreams == 0)
-  {
-    *unpackSizes = 0;
-    *digestsDefined = 0;
-    *digests = 0;
-  }
-  else
-  {
-    *unpackSizes = (UInt64 *)IAlloc_Alloc(allocTemp, (size_t)*numUnpackStreams * sizeof(UInt64));
-    RINOM(*unpackSizes);
-    *digestsDefined = (Byte *)IAlloc_Alloc(allocTemp, (size_t)*numUnpackStreams * sizeof(Byte));
-    RINOM(*digestsDefined);
-    *digests = (UInt32 *)IAlloc_Alloc(allocTemp, (size_t)*numUnpackStreams * sizeof(UInt32));
-    RINOM(*digests);
-  }
-
-  for (i = 0; i < numFolders; i++)
-  {
-    /*
-    v3.13 incorrectly worked with empty folders
-    v4.07: we check that folder is empty
-    */
-    UInt64 sum = 0;
-    UInt32 j;
-    UInt32 numSubstreams = folders[i].NumUnpackStreams;
-    if (numSubstreams == 0)
-      continue;
-    if (type == k7zIdSize)
-    for (j = 1; j < numSubstreams; j++)
-    {
-      UInt64 size;
-      RINOK(SzReadNumber(sd, &size));
-      (*unpackSizes)[si++] = size;
-      sum += size;
-    }
-    (*unpackSizes)[si++] = SzFolder_GetUnpackSize(folders + i) - sum;
-  }
-  if (type == k7zIdSize)
-  {
-    RINOK(SzReadID(sd, &type));
-  }
-
-  for (i = 0; i < *numUnpackStreams; i++)
-  {
-    (*digestsDefined)[i] = 0;
-    (*digests)[i] = 0;
-  }
-
-
-  for (i = 0; i < numFolders; i++)
-  {
-    UInt32 numSubstreams = folders[i].NumUnpackStreams;
-    if (numSubstreams != 1 || !folders[i].UnpackCRCDefined)
-      numDigests += numSubstreams;
-  }
-
- 
-  si = 0;
-  for (;;)
-  {
-    if (type == k7zIdCRC)
-    {
-      int digestIndex = 0;
-      Byte *digestsDefined2 = 0;
-      UInt32 *digests2 = 0;
-      SRes res = SzReadHashDigests(sd, numDigests, &digestsDefined2, &digests2, allocTemp);
-      if (res == SZ_OK)
-      {
-        for (i = 0; i < numFolders; i++)
-        {
-          CSzFolder *folder = folders + i;
-          UInt32 numSubstreams = folder->NumUnpackStreams;
-          if (numSubstreams == 1 && folder->UnpackCRCDefined)
-          {
-            (*digestsDefined)[si] = 1;
-            (*digests)[si] = folder->UnpackCRC;
-            si++;
-          }
-          else
-          {
-            UInt32 j;
-            for (j = 0; j < numSubstreams; j++, digestIndex++)
-            {
-              (*digestsDefined)[si] = digestsDefined2[digestIndex];
-              (*digests)[si] = digests2[digestIndex];
-              si++;
-            }
-          }
-        }
-      }
-      IAlloc_Free(allocTemp, digestsDefined2);
-      IAlloc_Free(allocTemp, digests2);
-      RINOK(res);
-    }
-    else if (type == k7zIdEnd)
-      return SZ_OK;
-    else
-    {
-      RINOK(SzSkeepData(sd));
-    }
-    RINOK(SzReadID(sd, &type));
-  }
-}
-
-
-static SRes SzReadStreamsInfo(
-    CSzData *sd,
-    UInt64 *dataOffset,
-    CSzAr *p,
-    UInt32 *numUnpackStreams,
-    UInt64 **unpackSizes, /* allocTemp */
-    Byte **digestsDefined,   /* allocTemp */
-    UInt32 **digests,        /* allocTemp */
-    ISzAlloc *alloc,
-    ISzAlloc *allocTemp)
-{
-  for (;;)
-  {
-    UInt64 type;
-    RINOK(SzReadID(sd, &type));
-    if ((UInt64)(int)type != type)
-      return SZ_ERROR_UNSUPPORTED;
-    switch((int)type)
-    {
-      case k7zIdEnd:
-        return SZ_OK;
-      case k7zIdPackInfo:
-      {
-        RINOK(SzReadPackInfo(sd, dataOffset, &p->NumPackStreams,
-            &p->PackSizes, &p->PackCRCsDefined, &p->PackCRCs, alloc));
-        break;
-      }
-      case k7zIdUnpackInfo:
-      {
-        RINOK(SzReadUnpackInfo(sd, &p->NumFolders, &p->Folders, alloc, allocTemp));
-        break;
-      }
-      case k7zIdSubStreamsInfo:
-      {
-        RINOK(SzReadSubStreamsInfo(sd, p->NumFolders, p->Folders,
-            numUnpackStreams, unpackSizes, digestsDefined, digests, allocTemp));
-        break;
-      }
-      default:
-        return SZ_ERROR_UNSUPPORTED;
-    }
-  }
-}
-
-size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest)
-{
-  size_t len = p->FileNameOffsets[fileIndex + 1] - p->FileNameOffsets[fileIndex];
-  if (dest != 0)
-  {
-    size_t i;
-    const Byte *src = p->FileNames.data + (p->FileNameOffsets[fileIndex] * 2);
-    for (i = 0; i < len; i++)
-      dest[i] = GetUi16(src + i * 2);
-  }
-  return len;
-}
-
-static SRes SzReadFileNames(const Byte *p, size_t size, UInt32 numFiles, size_t *sizes)
-{
-  UInt32 i;
-  size_t pos = 0;
-  for (i = 0; i < numFiles; i++)
-  {
-    sizes[i] = pos;
-    for (;;)
-    {
-      if (pos >= size)
-        return SZ_ERROR_ARCHIVE;
-      if (p[pos * 2] == 0 && p[pos * 2 + 1] == 0)
-        break;
-      pos++;
-    }
-    pos++;
-  }
-  sizes[i] = pos;
-  return (pos == size) ? SZ_OK : SZ_ERROR_ARCHIVE;
-}
-
-static SRes SzReadHeader2(
-    CSzArEx *p,   /* allocMain */
-    CSzData *sd,
-    UInt64 **unpackSizes,  /* allocTemp */
-    Byte **digestsDefined,    /* allocTemp */
-    UInt32 **digests,         /* allocTemp */
-    Byte **emptyStreamVector, /* allocTemp */
-    Byte **emptyFileVector,   /* allocTemp */
-    Byte **lwtVector,         /* allocTemp */
-    ISzAlloc *allocMain,
-    ISzAlloc *allocTemp)
-{
-  UInt64 type;
-  UInt32 numUnpackStreams = 0;
-  UInt32 numFiles = 0;
-  CSzFileItem *files = 0;
-  UInt32 numEmptyStreams = 0;
-  UInt32 i;
-
-  RINOK(SzReadID(sd, &type));
-
-  if (type == k7zIdArchiveProperties)
-  {
-    RINOK(SzReadArchiveProperties(sd));
-    RINOK(SzReadID(sd, &type));
-  }
- 
- 
-  if (type == k7zIdMainStreamsInfo)
-  {
-    RINOK(SzReadStreamsInfo(sd,
-        &p->dataPos,
-        &p->db,
-        &numUnpackStreams,
-        unpackSizes,
-        digestsDefined,
-        digests, allocMain, allocTemp));
-    p->dataPos += p->startPosAfterHeader;
-    RINOK(SzReadID(sd, &type));
-  }
-
-  if (type == k7zIdEnd)
-    return SZ_OK;
-  if (type != k7zIdFilesInfo)
-    return SZ_ERROR_ARCHIVE;
-  
-  RINOK(SzReadNumber32(sd, &numFiles));
-  p->db.NumFiles = numFiles;
-
-  MY_ALLOC(CSzFileItem, files, (size_t)numFiles, allocMain);
-
-  p->db.Files = files;
-  for (i = 0; i < numFiles; i++)
-    SzFile_Init(files + i);
-
-  for (;;)
-  {
-    UInt64 type;
-    UInt64 size;
-    RINOK(SzReadID(sd, &type));
-    if (type == k7zIdEnd)
-      break;
-    RINOK(SzReadNumber(sd, &size));
-    if (size > sd->Size)
-      return SZ_ERROR_ARCHIVE;
-    if ((UInt64)(int)type != type)
-    {
-      RINOK(SzSkeepDataSize(sd, size));
-    }
-    else
-    switch((int)type)
-    {
-      case k7zIdName:
-      {
-        size_t namesSize;
-        RINOK(SzReadSwitch(sd));
-        namesSize = (size_t)size - 1;
-        if ((namesSize & 1) != 0)
-          return SZ_ERROR_ARCHIVE;
-        if (!Buf_Create(&p->FileNames, namesSize, allocMain))
-          return SZ_ERROR_MEM;
-        MY_ALLOC(size_t, p->FileNameOffsets, numFiles + 1, allocMain);
-        memcpy(p->FileNames.data, sd->Data, namesSize);
-        RINOK(SzReadFileNames(sd->Data, namesSize >> 1, numFiles, p->FileNameOffsets))
-        RINOK(SzSkeepDataSize(sd, namesSize));
-        break;
-      }
-      case k7zIdEmptyStream:
-      {
-        RINOK(SzReadBoolVector(sd, numFiles, emptyStreamVector, allocTemp));
-        numEmptyStreams = 0;
-        for (i = 0; i < numFiles; i++)
-          if ((*emptyStreamVector)[i])
-            numEmptyStreams++;
-        break;
-      }
-      case k7zIdEmptyFile:
-      {
-        RINOK(SzReadBoolVector(sd, numEmptyStreams, emptyFileVector, allocTemp));
-        break;
-      }
-      case k7zIdWinAttributes:
-      {
-        RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
-        RINOK(SzReadSwitch(sd));
-        for (i = 0; i < numFiles; i++)
-        {
-          CSzFileItem *f = &files[i];
-          Byte defined = (*lwtVector)[i];
-          f->AttribDefined = defined;
-          f->Attrib = 0;
-          if (defined)
-          {
-            RINOK(SzReadUInt32(sd, &f->Attrib));
-          }
-        }
-        IAlloc_Free(allocTemp, *lwtVector);
-        *lwtVector = NULL;
-        break;
-      }
-      case k7zIdMTime:
-      {
-        RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
-        RINOK(SzReadSwitch(sd));
-        for (i = 0; i < numFiles; i++)
-        {
-          CSzFileItem *f = &files[i];
-          Byte defined = (*lwtVector)[i];
-          f->MTimeDefined = defined;
-          f->MTime.Low = f->MTime.High = 0;
-          if (defined)
-          {
-            RINOK(SzReadUInt32(sd, &f->MTime.Low));
-            RINOK(SzReadUInt32(sd, &f->MTime.High));
-          }
-        }
-        IAlloc_Free(allocTemp, *lwtVector);
-        *lwtVector = NULL;
-        break;
-      }
-      default:
-      {
-        RINOK(SzSkeepDataSize(sd, size));
-      }
-    }
-  }
-
-  {
-    UInt32 emptyFileIndex = 0;
-    UInt32 sizeIndex = 0;
-    for (i = 0; i < numFiles; i++)
-    {
-      CSzFileItem *file = files + i;
-      file->IsAnti = 0;
-      if (*emptyStreamVector == 0)
-        file->HasStream = 1;
-      else
-        file->HasStream = (Byte)((*emptyStreamVector)[i] ? 0 : 1);
-      if (file->HasStream)
-      {
-        file->IsDir = 0;
-        file->Size = (*unpackSizes)[sizeIndex];
-        file->Crc = (*digests)[sizeIndex];
-        file->CrcDefined = (Byte)(*digestsDefined)[sizeIndex];
-        sizeIndex++;
-      }
-      else
-      {
-        if (*emptyFileVector == 0)
-          file->IsDir = 1;
-        else
-          file->IsDir = (Byte)((*emptyFileVector)[emptyFileIndex] ? 0 : 1);
-        emptyFileIndex++;
-        file->Size = 0;
-        file->Crc = 0;
-        file->CrcDefined = 0;
-      }
-    }
-  }
-  return SzArEx_Fill(p, allocMain);
-}
-
-static SRes SzReadHeader(
-    CSzArEx *p,
-    CSzData *sd,
-    ISzAlloc *allocMain,
-    ISzAlloc *allocTemp)
-{
-  UInt64 *unpackSizes = 0;
-  Byte *digestsDefined = 0;
-  UInt32 *digests = 0;
-  Byte *emptyStreamVector = 0;
-  Byte *emptyFileVector = 0;
-  Byte *lwtVector = 0;
-  SRes res = SzReadHeader2(p, sd,
-      &unpackSizes, &digestsDefined, &digests,
-      &emptyStreamVector, &emptyFileVector, &lwtVector,
-      allocMain, allocTemp);
-  IAlloc_Free(allocTemp, unpackSizes);
-  IAlloc_Free(allocTemp, digestsDefined);
-  IAlloc_Free(allocTemp, digests);
-  IAlloc_Free(allocTemp, emptyStreamVector);
-  IAlloc_Free(allocTemp, emptyFileVector);
-  IAlloc_Free(allocTemp, lwtVector);
-  return res;
-}
-
-static SRes SzReadAndDecodePackedStreams2(
-    ILookInStream *inStream,
-    CSzData *sd,
-    CBuf *outBuffer,
-    UInt64 baseOffset,
-    CSzAr *p,
-    UInt64 **unpackSizes,
-    Byte **digestsDefined,
-    UInt32 **digests,
-    ISzAlloc *allocTemp)
-{
-
-  UInt32 numUnpackStreams = 0;
-  UInt64 dataStartPos;
-  CSzFolder *folder;
-  UInt64 unpackSize;
-  SRes res;
-
-  RINOK(SzReadStreamsInfo(sd, &dataStartPos, p,
-      &numUnpackStreams,  unpackSizes, digestsDefined, digests,
-      allocTemp, allocTemp));
-  
-  dataStartPos += baseOffset;
-  if (p->NumFolders != 1)
-    return SZ_ERROR_ARCHIVE;
-
-  folder = p->Folders;
-  unpackSize = SzFolder_GetUnpackSize(folder);
-  
-  RINOK(LookInStream_SeekTo(inStream, dataStartPos));
-
-  if (!Buf_Create(outBuffer, (size_t)unpackSize, allocTemp))
-    return SZ_ERROR_MEM;
-  
-  res = SzFolder_Decode(folder, p->PackSizes,
-          inStream, dataStartPos,
-          outBuffer->data, (size_t)unpackSize, allocTemp);
-  RINOK(res);
-  if (folder->UnpackCRCDefined)
-    if (CrcCalc(outBuffer->data, (size_t)unpackSize) != folder->UnpackCRC)
-      return SZ_ERROR_CRC;
-  return SZ_OK;
-}
-
-static SRes SzReadAndDecodePackedStreams(
-    ILookInStream *inStream,
-    CSzData *sd,
-    CBuf *outBuffer,
-    UInt64 baseOffset,
-    ISzAlloc *allocTemp)
-{
-  CSzAr p;
-  UInt64 *unpackSizes = 0;
-  Byte *digestsDefined = 0;
-  UInt32 *digests = 0;
-  SRes res;
-  SzAr_Init(&p);
-  res = SzReadAndDecodePackedStreams2(inStream, sd, outBuffer, baseOffset,
-    &p, &unpackSizes, &digestsDefined, &digests,
-    allocTemp);
-  SzAr_Free(&p, allocTemp);
-  IAlloc_Free(allocTemp, unpackSizes);
-  IAlloc_Free(allocTemp, digestsDefined);
-  IAlloc_Free(allocTemp, digests);
-  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 buffer;
-  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(&buffer, nextHeaderSizeT, allocTemp))
-    return SZ_ERROR_MEM;
-
-  res = LookInStream_Read(inStream, buffer.data, nextHeaderSizeT);
-  if (res == SZ_OK)
-  {
-    res = SZ_ERROR_ARCHIVE;
-    if (CrcCalc(buffer.data, nextHeaderSizeT) == nextHeaderCRC)
-    {
-      CSzData sd;
-      UInt64 type;
-      sd.Data = buffer.data;
-      sd.Size = buffer.size;
-      res = SzReadID(&sd, &type);
-      if (res == SZ_OK)
-      {
-        if (type == k7zIdEncodedHeader)
-        {
-          CBuf outBuffer;
-          Buf_Init(&outBuffer);
-          res = SzReadAndDecodePackedStreams(inStream, &sd, &outBuffer, p->startPosAfterHeader, allocTemp);
-          if (res != SZ_OK)
-            Buf_Free(&outBuffer, allocTemp);
-          else
-          {
-            Buf_Free(&buffer, allocTemp);
-            buffer.data = outBuffer.data;
-            buffer.size = outBuffer.size;
-            sd.Data = buffer.data;
-            sd.Size = buffer.size;
-            res = SzReadID(&sd, &type);
-          }
-        }
-      }
-      if (res == SZ_OK)
-      {
-        if (type == k7zIdHeader)
-          res = SzReadHeader(p, &sd, allocMain, allocTemp);
-        else
-          res = SZ_ERROR_UNSUPPORTED;
-      }
-    }
-  }
-  Buf_Free(&buffer, allocTemp);
-  return res;
-}
-
-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;
-}
-
-SRes SzArEx_Extract(
-    const CSzArEx *p,
-    ILookInStream *inStream,
-    UInt32 fileIndex,
-    UInt32 *blockIndex,
-    Byte **outBuffer,
-    size_t *outBufferSize,
-    size_t *offset,
-    size_t *outSizeProcessed,
-    ISzAlloc *allocMain,
-    ISzAlloc *allocTemp)
-{
-  UInt32 folderIndex = p->FileIndexToFolderIndexMap[fileIndex];
-  SRes res = SZ_OK;
-  *offset = 0;
-  *outSizeProcessed = 0;
-  if (folderIndex == (UInt32)-1)
-  {
-    IAlloc_Free(allocMain, *outBuffer);
-    *blockIndex = folderIndex;
-    *outBuffer = 0;
-    *outBufferSize = 0;
-    return SZ_OK;
-  }
-
-  if (*outBuffer == 0 || *blockIndex != folderIndex)
-  {
-    CSzFolder *folder = p->db.Folders + folderIndex;
-    UInt64 unpackSizeSpec = SzFolder_GetUnpackSize(folder);
-    size_t unpackSize = (size_t)unpackSizeSpec;
-    UInt64 startOffset = SzArEx_GetFolderStreamPos(p, folderIndex, 0);
-
-    if (unpackSize != unpackSizeSpec)
-      return SZ_ERROR_MEM;
-    *blockIndex = folderIndex;
-    IAlloc_Free(allocMain, *outBuffer);
-    *outBuffer = 0;
-    
-    RINOK(LookInStream_SeekTo(inStream, startOffset));
-    
-    if (res == SZ_OK)
-    {
-      *outBufferSize = unpackSize;
-      if (unpackSize != 0)
-      {
-        *outBuffer = (Byte *)IAlloc_Alloc(allocMain, unpackSize);
-        if (*outBuffer == 0)
-          res = SZ_ERROR_MEM;
-      }
-      if (res == SZ_OK)
-      {
-        res = SzFolder_Decode(folder,
-          p->db.PackSizes + p->FolderStartPackStreamIndex[folderIndex],
-          inStream, startOffset,
-          *outBuffer, unpackSize, allocTemp);
-        if (res == SZ_OK)
-        {
-          if (folder->UnpackCRCDefined)
-          {
-            if (CrcCalc(*outBuffer, unpackSize) != folder->UnpackCRC)
-              res = SZ_ERROR_CRC;
-          }
-        }
-      }
-    }
-  }
-  if (res == SZ_OK)
-  {
-    UInt32 i;
-    CSzFileItem *fileItem = p->db.Files + fileIndex;
-    *offset = 0;
-    for (i = p->FolderStartFileIndex[folderIndex]; i < fileIndex; i++)
-      *offset += (UInt32)p->db.Files[i].Size;
-    *outSizeProcessed = (size_t)fileItem->Size;
-    if (*offset + *outSizeProcessed > *outBufferSize)
-      return SZ_ERROR_FAIL;
-    if (fileItem->CrcDefined && CrcCalc(*outBuffer + *offset, *outSizeProcessed) != fileItem->Crc)
-      res = SZ_ERROR_CRC;
-  }
-  return res;
-}
diff --git a/third_party/lzma_sdk/7zStream.c b/third_party/lzma_sdk/7zStream.c
index 0ebb7b5..88f9c42 100644
--- a/third_party/lzma_sdk/7zStream.c
+++ b/third_party/lzma_sdk/7zStream.c
@@ -1,9 +1,11 @@
 /* 7zStream.c -- 7z Stream functions
-2010-03-11 : Igor Pavlov : Public domain */
+2013-11-12 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include <string.h>
 
-#include "Types.h"
+#include "7zTypes.h"
 
 SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType)
 {
diff --git a/third_party/lzma_sdk/Types.h b/third_party/lzma_sdk/7zTypes.h
index 7732c24..778413e 100644
--- a/third_party/lzma_sdk/Types.h
+++ b/third_party/lzma_sdk/7zTypes.h
@@ -1,15 +1,15 @@
-/* Types.h -- Basic types
-2010-10-09 : Igor Pavlov : Public domain */
+/* 7zTypes.h -- Basic types
+2013-11-12 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_TYPES_H
 #define __7Z_TYPES_H
 
-#include <stddef.h>
-
 #ifdef _WIN32
-#include <windows.h>
+/* #include <windows.h> */
 #endif
 
+#include <stddef.h>
+
 #ifndef EXTERN_C_BEGIN
 #ifdef __cplusplus
 #define EXTERN_C_BEGIN extern "C" {
@@ -43,7 +43,8 @@ EXTERN_C_BEGIN
 typedef int SRes;
 
 #ifdef _WIN32
-typedef DWORD WRes;
+/* typedef DWORD WRes; */
+typedef unsigned WRes;
 #else
 typedef int WRes;
 #endif
@@ -116,6 +117,7 @@ typedef int Bool;
 
 #else
 
+#define MY_NO_INLINE
 #define MY_CDECL
 #define MY_FAST_CALL
 
diff --git a/third_party/lzma_sdk/Alloc.c b/third_party/lzma_sdk/Alloc.c
index 358a7b5..3f6ac41 100644
--- a/third_party/lzma_sdk/Alloc.c
+++ b/third_party/lzma_sdk/Alloc.c
@@ -1,7 +1,7 @@
 /* Alloc.c -- Memory allocation functions
-2008-09-24
-Igor Pavlov
-Public domain */
+2015-02-21 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #ifdef _WIN32
 #include <windows.h>
@@ -125,3 +125,12 @@ void BigFree(void *address)
 }
 
 #endif
+
+
+static void *SzAlloc(void *p, size_t size) { UNUSED_VAR(p); return MyAlloc(size); }
+static void SzFree(void *p, void *address) { UNUSED_VAR(p); MyFree(address); }
+ISzAlloc g_Alloc = { SzAlloc, SzFree };
+
+static void *SzBigAlloc(void *p, size_t size) { UNUSED_VAR(p); return BigAlloc(size); }
+static void SzBigFree(void *p, void *address) { UNUSED_VAR(p); BigFree(address); }
+ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
diff --git a/third_party/lzma_sdk/Alloc.h b/third_party/lzma_sdk/Alloc.h
index b8e4143..bac0d87 100644
--- a/third_party/lzma_sdk/Alloc.h
+++ b/third_party/lzma_sdk/Alloc.h
@@ -1,14 +1,12 @@
 /* Alloc.h -- Memory allocation functions
-2009-02-07 : Igor Pavlov : Public domain */
+2015-02-21 : Igor Pavlov : Public domain */
 
 #ifndef __COMMON_ALLOC_H
 #define __COMMON_ALLOC_H
 
-#include <stddef.h>
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 void *MyAlloc(size_t size);
 void MyFree(void *address);
@@ -31,8 +29,9 @@ void BigFree(void *address);
 
 #endif
 
-#ifdef __cplusplus
-}
-#endif
+extern ISzAlloc g_Alloc;
+extern ISzAlloc g_BigAlloc;
+
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/BUILD.gn b/third_party/lzma_sdk/BUILD.gn
index 1f36abd..693b145 100644
--- a/third_party/lzma_sdk/BUILD.gn
+++ b/third_party/lzma_sdk/BUILD.gn
@@ -20,6 +20,7 @@ static_library("lzma_sdk") {
     "7z.h",
     "7zAlloc.c",
     "7zAlloc.h",
+    "7zArcIn.c",
     "7zBuf.c",
     "7zBuf.h",
     "7zCrc.c",
@@ -28,8 +29,8 @@ static_library("lzma_sdk") {
     "7zDec.c",
     "7zFile.c",
     "7zFile.h",
-    "7zIn.c",
     "7zStream.c",
+    "7zTypes.h",
     "Alloc.c",
     "Alloc.h",
     "Bcj2.c",
@@ -37,8 +38,11 @@ static_library("lzma_sdk") {
     "Bra.c",
     "Bra.h",
     "Bra86.c",
+    "Compiler.h",
     "CpuArch.c",
     "CpuArch.h",
+    "Delta.c",
+    "Delta.h",
     "LzFind.c",
     "LzFind.h",
     "LzHash.h",
@@ -50,11 +54,12 @@ static_library("lzma_sdk") {
     "LzmaEnc.h",
     "LzmaLib.c",
     "LzmaLib.h",
-    "Types.h",
+    "Precomp.h",
   ]
 
   defines = [
     "_7ZIP_ST",
+    "_7Z_NO_METHODS_FILTERS",
     "_LZMA_PROB32",
   ]
 
diff --git a/third_party/lzma_sdk/Bcj2.c b/third_party/lzma_sdk/Bcj2.c
index 20199ce..3c88e44 100644
--- a/third_party/lzma_sdk/Bcj2.c
+++ b/third_party/lzma_sdk/Bcj2.c
@@ -1,132 +1,256 @@
-/* Bcj2.c -- Converter for x86 code (BCJ2)
-2008-10-04 : Igor Pavlov : Public domain */
+/* Bcj2.c -- BCJ2 Decoder (Converter for x86 code)
+2015-08-01 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "Bcj2.h"
+#include "CpuArch.h"
 
-#ifdef _LZMA_PROB32
-#define CProb UInt32
-#else
 #define CProb UInt16
-#endif
-
-#define IsJcc(b0, b1) ((b0) == 0x0F && ((b1) & 0xF0) == 0x80)
-#define IsJ(b0, b1) ((b1 & 0xFE) == 0xE8 || IsJcc(b0, b1))
-
-#define kNumTopBits 24
-#define kTopValue ((UInt32)1 << kNumTopBits)
 
-#define kNumBitModelTotalBits 11
-#define kBitModelTotal (1 << kNumBitModelTotalBits)
+#define kTopValue ((UInt32)1 << 24)
+#define kNumModelBits 11
+#define kBitModelTotal (1 << kNumModelBits)
 #define kNumMoveBits 5
 
-#define RC_READ_BYTE (*buffer++)
-#define RC_TEST { if (buffer == bufferLim) return SZ_ERROR_DATA; }
-#define RC_INIT2 code = 0; range = 0xFFFFFFFF; \
-  { int i; for (i = 0; i < 5; i++) { RC_TEST; code = (code << 8) | RC_READ_BYTE; }}
+#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));
 
-#define NORMALIZE if (range < kTopValue) { RC_TEST; range <<= 8; code = (code << 8) | RC_READ_BYTE; }
-
-#define IF_BIT_0(p) ttt = *(p); bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
-#define UPDATE_0(p) range = bound; *(p) = (CProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); NORMALIZE;
-#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CProb)(ttt - (ttt >> kNumMoveBits)); NORMALIZE;
-
-int Bcj2_Decode(
-    const Byte *buf0, SizeT size0,
-    const Byte *buf1, SizeT size1,
-    const Byte *buf2, SizeT size2,
-    const Byte *buf3, SizeT size3,
-    Byte *outBuf, SizeT outSize)
+void Bcj2Dec_Init(CBcj2Dec *p)
 {
-  CProb p[256 + 2];
-  SizeT inPos = 0, outPos = 0;
-
-  const Byte *buffer, *bufferLim;
-  UInt32 range, code;
-  Byte prevByte = 0;
+  unsigned i;
 
-  unsigned int i;
-  for (i = 0; i < sizeof(p) / sizeof(p[0]); i++)
-    p[i] = kBitModelTotal >> 1;
-
-  buffer = buf3;
-  bufferLim = buffer + size3;
-  RC_INIT2
+  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;
+}
 
-  if (outSize == 0)
-    return SZ_OK;
+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;
+      }
 
-  for (;;)
+      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)
   {
-    Byte b;
-    CProb *prob;
-    UInt32 bound;
-    UInt32 ttt;
-
-    SizeT limit = size0 - inPos;
-    if (outSize - outPos < limit)
-      limit = outSize - outPos;
-    while (limit != 0)
+    while (p->state <= BCJ2_DEC_STATE_ORIG_3)
     {
-      Byte b = buf0[inPos];
-      outBuf[outPos++] = b;
-      if (IsJ(prevByte, b))
-        break;
-      inPos++;
-      prevByte = b;
-      limit--;
+      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 (limit == 0 || outPos == outSize)
-      break;
-
-    b = buf0[inPos++];
-
-    if (b == 0xE8)
-      prob = p + prevByte;
-    else if (b == 0xE9)
-      prob = p + 256;
-    else
-      prob = p + 257;
-
-    IF_BIT_0(prob)
+  /*
+  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;
+    
     {
-      UPDATE_0(prob)
-      prevByte = b;
+      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
     {
-      UInt32 dest;
-      const Byte *v;
-      UPDATE_1(prob)
-      if (b == 0xE8)
+      if (p->range < kTopValue)
       {
-        v = buf1;
-        if (size1 < 4)
-          return SZ_ERROR_DATA;
-        buf1 += 4;
-        size1 -= 4;
+        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])++;
       }
-      else
+
       {
-        v = buf2;
-        if (size2 < 4)
-          return SZ_ERROR_DATA;
-        buf2 += 4;
-        size2 -= 4;
+        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
+            
+        }
       }
-      dest = (((UInt32)v[0] << 24) | ((UInt32)v[1] << 16) |
-          ((UInt32)v[2] << 8) | ((UInt32)v[3])) - ((UInt32)outPos + 4);
-      outBuf[outPos++] = (Byte)dest;
-      if (outPos == outSize)
-        break;
-      outBuf[outPos++] = (Byte)(dest >> 8);
-      if (outPos == outSize)
+    }
+
+    {
+      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;
-      outBuf[outPos++] = (Byte)(dest >> 16);
-      if (outPos == outSize)
+      }
+      
+      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;
-      outBuf[outPos++] = prevByte = (Byte)(dest >> 24);
+      }
+      
+      SetUi32(dest, val);
+      p->temp[3] = (Byte)(val >> 24);
+      p->dest = dest + 4;
     }
   }
-  return (outPos == outSize) ? SZ_OK : SZ_ERROR_DATA;
+
+  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;
 }
diff --git a/third_party/lzma_sdk/Bcj2.h b/third_party/lzma_sdk/Bcj2.h
index dbc0541..8824080 100644
--- a/third_party/lzma_sdk/Bcj2.h
+++ b/third_party/lzma_sdk/Bcj2.h
@@ -1,38 +1,146 @@
-/* Bcj2.h -- Converter for x86 code (BCJ2)
-2009-02-07 : Igor Pavlov : Public domain */
+/* Bcj2.h -- BCJ2 Converter for x86 code
+2014-11-10 : Igor Pavlov : Public domain */
 
 #ifndef __BCJ2_H
 #define __BCJ2_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
-/*
-Conditions:
-  outSize <= FullOutputSize,
-  where FullOutputSize is full size of output stream of x86_2 filter.
+#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
+};
 
-If buf0 overlaps outBuf, there are two required conditions:
-  1) (buf0 >= outBuf)
-  2) (buf0 + size0 >= outBuf + FullOutputSize).
+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
+*/
 
-Returns:
-  SZ_OK
-  SZ_ERROR_DATA - Data error
+/*
+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
 */
 
-int Bcj2_Decode(
-    const Byte *buf0, SizeT size0,
-    const Byte *buf1, SizeT size1,
-    const Byte *buf2, SizeT size2,
-    const Byte *buf3, SizeT size3,
-    Byte *outBuf, SizeT outSize);
+typedef struct
+{
+  const Byte *bufs[BCJ2_NUM_STREAMS];
+  const Byte *lims[BCJ2_NUM_STREAMS];
+  Byte *dest;
+  const Byte *destLim;
 
-#ifdef __cplusplus
-}
-#endif
+  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;
+
+void Bcj2Dec_Init(CBcj2Dec *p);
+
+/* Returns: SZ_OK or SZ_ERROR_DATA */
+SRes Bcj2Dec_Decode(CBcj2Dec *p);
+
+#define Bcj2Dec_IsFinished(_p_) ((_p_)->code == 0)
+
+
+
+typedef enum
+{
+  BCJ2_ENC_FINISH_MODE_CONTINUE,
+  BCJ2_ENC_FINISH_MODE_END_BLOCK,
+  BCJ2_ENC_FINISH_MODE_END_STREAM
+} EBcj2Enc_FinishMode;
+
+typedef struct
+{
+  Byte *bufs[BCJ2_NUM_STREAMS];
+  const Byte *lims[BCJ2_NUM_STREAMS];
+  const Byte *src;
+  const Byte *srcLim;
+
+  unsigned state;
+  EBcj2Enc_FinishMode finishMode;
+
+  Byte prevByte;
+
+  Byte cache;
+  UInt32 range;
+  UInt64 low;
+  UInt64 cacheSize;
+
+  UInt32 ip;
+
+  /* 32-bit ralative offset in JUMP/CALL commands is
+       - (mod 4 GB)   in 32-bit mode
+       - signed Int32 in 64-bit mode
+     We use (mod 4 GB) check for fileSize.
+     Use fileSize up to 2 GB, if you want to support 32-bit and 64-bit code conversion. */
+  UInt32 fileIp;
+  UInt32 fileSize;    /* (fileSize <= ((UInt32)1 << 31)), 0 means no_limit */
+  UInt32 relatLimit;  /* (relatLimit <= ((UInt32)1 << 31)), 0 means desable_conversion */
+
+  UInt32 tempTarget;
+  unsigned tempPos;
+  Byte temp[4 * 2];
+
+  unsigned flushPos;
+  
+  UInt16 probs[2 + 256];
+} CBcj2Enc;
+
+void Bcj2Enc_Init(CBcj2Enc *p);
+void Bcj2Enc_Encode(CBcj2Enc *p);
+
+#define Bcj2Enc_Get_InputData_Size(p) ((SizeT)((p)->srcLim - (p)->src) + (p)->tempPos)
+#define Bcj2Enc_IsFinished(p) ((p)->flushPos == 5)
+
+
+#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
diff --git a/third_party/lzma_sdk/Bra.c b/third_party/lzma_sdk/Bra.c
index 2e47b14..cdb9456 100644
--- a/third_party/lzma_sdk/Bra.c
+++ b/third_party/lzma_sdk/Bra.c
@@ -1,6 +1,8 @@
 /* Bra.c -- Converters for RISC code
 2010-04-16 : Igor Pavlov : Public domain */
 
+#include "Precomp.h"
+
 #include "Bra.h"
 
 SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
diff --git a/third_party/lzma_sdk/Bra.h b/third_party/lzma_sdk/Bra.h
index 5748c1c..855e37a 100644
--- a/third_party/lzma_sdk/Bra.h
+++ b/third_party/lzma_sdk/Bra.h
@@ -1,14 +1,12 @@
 /* Bra.h -- Branch converters for executables
-2009-02-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __BRA_H
 #define __BRA_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 /*
 These functions convert relative addresses to absolute addresses
@@ -61,8 +59,6 @@ SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
 SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
 SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/Bra86.c b/third_party/lzma_sdk/Bra86.c
index 1ee0e70..6db15e7 100644
--- a/third_party/lzma_sdk/Bra86.c
+++ b/third_party/lzma_sdk/Bra86.c
@@ -1,85 +1,82 @@
 /* Bra86.c -- Converter for x86 code (BCJ)
-2008-10-04 : Igor Pavlov : Public domain */
+2013-11-12 : Igor Pavlov : Public domain */
 
-#include "Bra.h"
+#include "Precomp.h"
 
-#define Test86MSByte(b) ((b) == 0 || (b) == 0xFF)
+#include "Bra.h"
 
-const Byte kMaskToAllowedStatus[8] = {1, 1, 1, 0, 1, 0, 0, 0};
-const Byte kMaskToBitNumber[8] = {0, 1, 2, 2, 3, 3, 3, 3};
+#define Test86MSByte(b) ((((b) + 1) & 0xFE) == 0)
 
 SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding)
 {
-  SizeT bufferPos = 0, prevPosT;
-  UInt32 prevMask = *state & 0x7;
+  SizeT pos = 0;
+  UInt32 mask = *state & 7;
   if (size < 5)
     return 0;
+  size -= 4;
   ip += 5;
-  prevPosT = (SizeT)0 - 1;
 
   for (;;)
   {
-    Byte *p = data + bufferPos;
-    Byte *limit = data + size - 4;
+    Byte *p = data + pos;
+    const Byte *limit = data + size;
     for (; p < limit; p++)
       if ((*p & 0xFE) == 0xE8)
         break;
-    bufferPos = (SizeT)(p - data);
-    if (p >= limit)
-      break;
-    prevPosT = bufferPos - prevPosT;
-    if (prevPosT > 3)
-      prevMask = 0;
-    else
+
     {
-      prevMask = (prevMask << ((int)prevPosT - 1)) & 0x7;
-      if (prevMask != 0)
+      SizeT d = (SizeT)(p - data - pos);
+      pos = (SizeT)(p - data);
+      if (p >= limit)
       {
-        Byte b = p[4 - kMaskToBitNumber[prevMask]];
-        if (!kMaskToAllowedStatus[prevMask] || Test86MSByte(b))
+        *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])))
         {
-          prevPosT = bufferPos;
-          prevMask = ((prevMask << 1) & 0x7) | 1;
-          bufferPos++;
+          mask = (mask >> 1) | 4;
+          pos++;
           continue;
         }
       }
     }
-    prevPosT = bufferPos;
 
     if (Test86MSByte(p[4]))
     {
-      UInt32 src = ((UInt32)p[4] << 24) | ((UInt32)p[3] << 16) | ((UInt32)p[2] << 8) | ((UInt32)p[1]);
-      UInt32 dest;
-      for (;;)
+      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)
       {
-        Byte b;
-        int index;
-        if (encoding)
-          dest = (ip + (UInt32)bufferPos) + src;
-        else
-          dest = src - (ip + (UInt32)bufferPos);
-        if (prevMask == 0)
-          break;
-        index = kMaskToBitNumber[prevMask] * 8;
-        b = (Byte)(dest >> (24 - index));
-        if (!Test86MSByte(b))
-          break;
-        src = dest ^ ((1 << (32 - index)) - 1);
+        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[4] = (Byte)(~(((dest >> 24) & 1) - 1));
-      p[3] = (Byte)(dest >> 16);
-      p[2] = (Byte)(dest >> 8);
-      p[1] = (Byte)dest;
-      bufferPos += 5;
+      p[1] = (Byte)v;
+      p[2] = (Byte)(v >> 8);
+      p[3] = (Byte)(v >> 16);
+      p[4] = (Byte)(0 - ((v >> 24) & 1));
     }
     else
     {
-      prevMask = ((prevMask << 1) & 0x7) | 1;
-      bufferPos++;
+      mask = (mask >> 1) | 4;
+      pos++;
     }
   }
-  prevPosT = bufferPos - prevPosT;
-  *state = ((prevPosT > 3) ? 0 : ((prevMask << ((int)prevPosT - 1)) & 0x7));
-  return bufferPos;
 }
diff --git a/third_party/lzma_sdk/Compiler.h b/third_party/lzma_sdk/Compiler.h
new file mode 100644
index 0000000..5bba7ee
--- /dev/null
+++ b/third_party/lzma_sdk/Compiler.h
@@ -0,0 +1,32 @@
+/* Compiler.h
+2015-08-02 : Igor Pavlov : Public domain */
+
+#ifndef __7Z_COMPILER_H
+#define __7Z_COMPILER_H
+
+#ifdef _MSC_VER
+
+  #ifdef UNDER_CE
+    #define RPC_NO_WINDOWS_H
+    /* #pragma warning(disable : 4115) // '_RPC_ASYNC_STATE' : named type definition in parentheses */
+    #pragma warning(disable : 4201) // nonstandard extension used : nameless struct/union
+    #pragma warning(disable : 4214) // nonstandard extension used : bit field types other than int
+  #endif
+
+  #if _MSC_VER >= 1300
+    #pragma warning(disable : 4996) // This function or variable may be unsafe
+  #else
+    #pragma warning(disable : 4511) // copy constructor could not be generated
+    #pragma warning(disable : 4512) // assignment operator could not be generated
+    #pragma warning(disable : 4514) // unreferenced inline function has been removed
+    #pragma warning(disable : 4702) // unreachable code
+    #pragma warning(disable : 4710) // not inlined
+    #pragma warning(disable : 4786) // identifier was truncated to '255' characters in the debug information
+  #endif
+
+#endif
+
+#define UNUSED_VAR(x) (void)x;
+/* #define UNUSED_VAR(x) x=x; */
+
+#endif
diff --git a/third_party/lzma_sdk/CpuArch.c b/third_party/lzma_sdk/CpuArch.c
index 1616959..edb6b08 100644
--- a/third_party/lzma_sdk/CpuArch.c
+++ b/third_party/lzma_sdk/CpuArch.c
@@ -1,5 +1,7 @@
 /* CpuArch.c -- CPU specific code
-2010-10-26: Igor Pavlov : Public domain */
+2015-03-25: Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "CpuArch.h"
 
@@ -9,6 +11,10 @@
 #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)
 {
@@ -49,7 +55,7 @@ static UInt32 CheckFlag(UInt32 flag)
 #define CHECK_CPUID_IS_SUPPORTED
 #endif
 
-static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
+void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
 {
   #ifdef USE_ASM
 
@@ -73,33 +79,29 @@ static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
 
   #else
 
-  #if defined(MY_CPU_AMD64)
-
   __asm__ __volatile__ (
+  #if defined(MY_CPU_AMD64)
     "mov %%rbx, %%rdi\n"
     "cpuid\n"
     "xchg %%rdi, %%rbx\n"
     : "=a" (*a) ,
       "=D" (*b) ,
-      "=c" (*c) ,
-      "=d" (*d)
-    : "0" (function)) ;
-
-  #else
-
-  __asm__ __volatile__ (
-    "mov %%ebx, %%edi\n"
-    "cpuid\n"
-    "xchg %%edi, %%ebx\n"
+  #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
-
-  #endif
   
   #else
 
@@ -121,7 +123,7 @@ Bool x86cpuid_CheckAndRead(Cx86cpuid *p)
   return True;
 }
 
-static UInt32 kVendors[][3] =
+static const UInt32 kVendors[][3] =
 {
   { 0x756E6547, 0x49656E69, 0x6C65746E},
   { 0x68747541, 0x69746E65, 0x444D4163},
@@ -149,12 +151,22 @@ Bool CPU_Is_InOrder()
   UInt32 family, model;
   if (!x86cpuid_CheckAndRead(&p))
     return True;
-  family = x86cpuid_GetFamily(&p);
-  model = x86cpuid_GetModel(&p);
+
+  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 && model == 0x100C));
+    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));
   }
@@ -162,6 +174,7 @@ Bool CPU_Is_InOrder()
 }
 
 #if !defined(MY_CPU_AMD64) && defined(_WIN32)
+#include <windows.h>
 static Bool CPU_Sys_Is_SSE_Supported()
 {
   OSVERSIONINFO vi;
diff --git a/third_party/lzma_sdk/CpuArch.h b/third_party/lzma_sdk/CpuArch.h
index 8c0c84d..f6a28ba 100644
--- a/third_party/lzma_sdk/CpuArch.h
+++ b/third_party/lzma_sdk/CpuArch.h
@@ -1,28 +1,34 @@
 /* CpuArch.h -- CPU specific code
-2010-10-26: Igor Pavlov : Public domain */
+2015-12-01: Igor Pavlov : Public domain */
 
 #ifndef __CPU_ARCH_H
 #define __CPU_ARCH_H
 
-#include <stdlib.h>
-#include "Types.h"
+#include "7zTypes.h"
 
 EXTERN_C_BEGIN
 
 /*
 MY_CPU_LE means that CPU is LITTLE ENDIAN.
-If MY_CPU_LE is not defined, we don't know about that property of platform (it can be 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 MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform.
 */
 
-#if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__)
-#define MY_CPU_AMD64
+#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)
-#define MY_CPU_64BIT
+#if defined(MY_CPU_AMD64) \
+    || defined(_M_IA64) \
+    || defined(__AARCH64EL__) \
+    || defined(__AARCH64EB__)
+  #define MY_CPU_64BIT
 #endif
 
 #if defined(_M_IX86) || defined(__i386__)
@@ -33,8 +39,13 @@ If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of pla
 #define MY_CPU_X86_OR_AMD64
 #endif
 
-#if defined(MY_CPU_X86) || defined(_M_ARM)
-#define MY_CPU_32BIT
+#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)
@@ -45,34 +56,63 @@ If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of pla
 #define MY_CPU_IA64_LE
 #endif
 
-#if defined(MY_CPU_X86_OR_AMD64)
-#define MY_CPU_LE_UNALIGN
-#endif
-
-#if defined(MY_CPU_X86_OR_AMD64) || defined(MY_CPU_ARM_LE)  || defined(MY_CPU_IA64_LE) || defined(__ARMEL__) || defined(__MIPSEL__) || defined(__LITTLE_ENDIAN__)
-#define MY_CPU_LE
+#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(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
+  #define MY_CPU_LE
 #endif
 
-#if defined(__BIG_ENDIAN__)
-#define MY_CPU_BE
+#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 *)(p))
-#define GetUi32(p) (*(const UInt32 *)(p))
-#define GetUi64(p) (*(const UInt64 *)(p))
-#define SetUi16(p, d) *(UInt16 *)(p) = (d);
-#define SetUi32(p, d) *(UInt32 *)(p) = (d);
-#define SetUi64(p, d) *(UInt64 *)(p) = (d);
+#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) (((const Byte *)(p))[0] | ((UInt16)((const Byte *)(p))[1] << 8))
+#define GetUi16(p) ( (UInt16) ( \
+             ((const Byte *)(p))[0] | \
+    ((UInt16)((const Byte *)(p))[1] << 8) ))
 
 #define GetUi32(p) ( \
              ((const Byte *)(p))[0]        | \
@@ -82,29 +122,43 @@ Stop_Compiling_Bad_Endian
 
 #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
 
-#define SetUi16(p, d) { UInt32 _x_ = (d); \
-    ((Byte *)(p))[0] = (Byte)_x_; \
-    ((Byte *)(p))[1] = (Byte)(_x_ >> 8); }
+#define SetUi16(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
+    _ppp_[0] = (Byte)_vvv_; \
+    _ppp_[1] = (Byte)(_vvv_ >> 8); }
 
-#define SetUi32(p, d) { UInt32 _x_ = (d); \
-    ((Byte *)(p))[0] = (Byte)_x_; \
-    ((Byte *)(p))[1] = (Byte)(_x_ >> 8); \
-    ((Byte *)(p))[2] = (Byte)(_x_ >> 16); \
-    ((Byte *)(p))[3] = (Byte)(_x_ >> 24); }
+#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, d) { UInt64 _x64_ = (d); \
-    SetUi32(p, (UInt32)_x64_); \
-    SetUi32(((Byte *)(p)) + 4, (UInt32)(_x64_ >> 32)); }
+#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)
+
+#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) ( \
@@ -115,9 +169,19 @@ Stop_Compiling_Bad_Endian
 
 #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)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])
+
+#define GetBe16(p) ( (UInt16) ( \
+    ((UInt16)((const Byte *)(p))[0] << 8) | \
+             ((const Byte *)(p))[1] ))
+
 
 
 #ifdef MY_CPU_X86_OR_AMD64
@@ -139,12 +203,14 @@ enum
   CPU_FIRM_VIA
 };
 
+void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d);
+
 Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
 int x86cpuid_GetFirm(const Cx86cpuid *p);
 
-#define x86cpuid_GetFamily(p) (((p)->ver >> 8) & 0xFF00F)
-#define x86cpuid_GetModel(p) (((p)->ver >> 4) & 0xF00F)
-#define x86cpuid_GetStepping(p) ((p)->ver & 0xF)
+#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)
 
 Bool CPU_Is_InOrder();
 Bool CPU_Is_Aes_Supported();
diff --git a/third_party/lzma_sdk/Delta.c b/third_party/lzma_sdk/Delta.c
new file mode 100644
index 0000000..e3edd21
--- /dev/null
+++ b/third_party/lzma_sdk/Delta.c
@@ -0,0 +1,64 @@
+/* Delta.c -- Delta converter
+2009-05-26 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
+
+#include "Delta.h"
+
+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];
+}
+
+void Delta_Encode(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++)
+      {
+        Byte b = data[i];
+        data[i] = (Byte)(b - buf[j]);
+        buf[j] = b;
+      }
+    }
+  }
+  if (j == delta)
+    j = 0;
+  MyMemCpy(state, buf + j, delta - j);
+  MyMemCpy(state + delta - j, buf, j);
+}
+
+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);
+}
diff --git a/third_party/lzma_sdk/Delta.h b/third_party/lzma_sdk/Delta.h
new file mode 100644
index 0000000..2fa54ad
--- /dev/null
+++ b/third_party/lzma_sdk/Delta.h
@@ -0,0 +1,19 @@
+/* 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
+
+void Delta_Init(Byte *state);
+void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size);
+void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size);
+
+EXTERN_C_END
+
+#endif
diff --git a/third_party/lzma_sdk/LzFind.c b/third_party/lzma_sdk/LzFind.c
index e3ecb05..2d05fa3 100644
--- a/third_party/lzma_sdk/LzFind.c
+++ b/third_party/lzma_sdk/LzFind.c
@@ -1,5 +1,7 @@
 /* LzFind.c -- Match finder for LZ algorithms
-2009-04-22 : Igor Pavlov : Public domain */
+2015-10-15 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include <string.h>
 
@@ -9,8 +11,8 @@
 #define kEmptyHashValue 0
 #define kMaxValForNormalize ((UInt32)0xFFFFFFFF)
 #define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
-#define kNormalizeMask (~(kNormalizeStepMin - 1))
-#define kMaxHistorySize ((UInt32)3 << 30)
+#define kNormalizeMask (~(UInt32)(kNormalizeStepMin - 1))
+#define kMaxHistorySize ((UInt32)7 << 29)
 
 #define kStartMaxLen 3
 
@@ -19,7 +21,7 @@ static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
   if (!p->directInput)
   {
     alloc->Free(alloc, p->bufferBase);
-    p->bufferBase = 0;
+    p->bufferBase = NULL;
   }
 }
 
@@ -33,17 +35,16 @@ static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *a
     p->blockSize = blockSize;
     return 1;
   }
-  if (p->bufferBase == 0 || p->blockSize != blockSize)
+  if (!p->bufferBase || p->blockSize != blockSize)
   {
     LzInWindow_Free(p, alloc);
     p->blockSize = blockSize;
     p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize);
   }
-  return (p->bufferBase != 0);
+  return (p->bufferBase != NULL);
 }
 
 Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
-Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
 
 UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
 
@@ -58,9 +59,12 @@ static void MatchFinder_ReadBlock(CMatchFinder *p)
 {
   if (p->streamEndWasReached || p->result != SZ_OK)
     return;
+
+  /* We use (p->streamPos - p->pos) value. (p->streamPos < p->pos) is allowed. */
+
   if (p->directInput)
   {
-    UInt32 curSize = 0xFFFFFFFF - p->streamPos;
+    UInt32 curSize = 0xFFFFFFFF - (p->streamPos - p->pos);
     if (curSize > p->directInputRem)
       curSize = (UInt32)p->directInputRem;
     p->directInputRem -= curSize;
@@ -69,12 +73,14 @@ static void MatchFinder_ReadBlock(CMatchFinder *p)
       p->streamEndWasReached = 1;
     return;
   }
+  
   for (;;)
   {
     Byte *dest = p->buffer + (p->streamPos - p->pos);
     size_t size = (p->bufferBase + p->blockSize - dest);
     if (size == 0)
       return;
+
     p->result = p->stream->Read(p->stream, dest, &size);
     if (p->result != SZ_OK)
       return;
@@ -92,8 +98,8 @@ static void MatchFinder_ReadBlock(CMatchFinder *p)
 void MatchFinder_MoveBlock(CMatchFinder *p)
 {
   memmove(p->bufferBase,
-    p->buffer - p->keepSizeBefore,
-    (size_t)(p->streamPos - p->pos + p->keepSizeBefore));
+      p->buffer - p->keepSizeBefore,
+      (size_t)(p->streamPos - p->pos) + p->keepSizeBefore);
   p->buffer = p->bufferBase + p->keepSizeBefore;
 }
 
@@ -133,15 +139,15 @@ static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
 void MatchFinder_Construct(CMatchFinder *p)
 {
   UInt32 i;
-  p->bufferBase = 0;
+  p->bufferBase = NULL;
   p->directInput = 0;
-  p->hash = 0;
+  p->hash = NULL;
   MatchFinder_SetDefaultSettings(p);
 
   for (i = 0; i < 256; i++)
   {
     UInt32 r = i;
-    int j;
+    unsigned j;
     for (j = 0; j < 8; j++)
       r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
     p->crc[i] = r;
@@ -151,7 +157,7 @@ void MatchFinder_Construct(CMatchFinder *p)
 static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->hash);
-  p->hash = 0;
+  p->hash = NULL;
 }
 
 void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
@@ -160,11 +166,11 @@ void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
   LzInWindow_Free(p, alloc);
 }
 
-static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc)
+static CLzRef* AllocRefs(size_t num, ISzAlloc *alloc)
 {
   size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
   if (sizeInBytes / sizeof(CLzRef) != num)
-    return 0;
+    return NULL;
   return (CLzRef *)alloc->Alloc(alloc, sizeInBytes);
 }
 
@@ -173,19 +179,24 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
     ISzAlloc *alloc)
 {
   UInt32 sizeReserv;
+  
   if (historySize > kMaxHistorySize)
   {
     MatchFinder_Free(p, alloc);
     return 0;
   }
+  
   sizeReserv = historySize >> 1;
-  if (historySize > ((UInt32)2 << 30))
-    sizeReserv = historySize >> 2;
+       if (historySize >= ((UInt32)3 << 30)) sizeReserv = historySize >> 3;
+  else if (historySize >= ((UInt32)2 << 30)) sizeReserv = historySize >> 2;
+  
   sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
 
   p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
   p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
+  
   /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
+  
   if (LzInWindow_Create(p, sizeReserv, alloc))
   {
     UInt32 newCyclicBufferSize = historySize + 1;
@@ -210,6 +221,7 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
             hs = (1 << 24) - 1;
           else
             hs >>= 1;
+          /* if (bigHash) mode, GetHeads4b() in LzFindMt.c needs (hs >= ((1 << 24) - 1))) */
         }
       }
       p->hashMask = hs;
@@ -221,24 +233,32 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
     }
 
     {
-      UInt32 prevSize = p->hashSizeSum + p->numSons;
-      UInt32 newSize;
+      size_t newSize;
+      size_t numSons;
       p->historySize = historySize;
       p->hashSizeSum = hs;
       p->cyclicBufferSize = newCyclicBufferSize;
-      p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
-      newSize = p->hashSizeSum + p->numSons;
-      if (p->hash != 0 && prevSize == newSize)
+      
+      numSons = newCyclicBufferSize;
+      if (p->btMode)
+        numSons <<= 1;
+      newSize = hs + numSons;
+
+      if (p->hash && p->numRefs == newSize)
         return 1;
+      
       MatchFinder_FreeThisClassMemory(p, alloc);
+      p->numRefs = newSize;
       p->hash = AllocRefs(newSize, alloc);
-      if (p->hash != 0)
+      
+      if (p->hash)
       {
         p->son = p->hash + p->hashSizeSum;
         return 1;
       }
     }
   }
+
   MatchFinder_Free(p, alloc);
   return 0;
 }
@@ -247,9 +267,11 @@ static void MatchFinder_SetLimits(CMatchFinder *p)
 {
   UInt32 limit = kMaxValForNormalize - p->pos;
   UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
+  
   if (limit2 < limit)
     limit = limit2;
   limit2 = p->streamPos - p->pos;
+  
   if (limit2 <= p->keepSizeAfter)
   {
     if (limit2 > 0)
@@ -257,8 +279,10 @@ static void MatchFinder_SetLimits(CMatchFinder *p)
   }
   else
     limit2 -= p->keepSizeAfter;
+  
   if (limit2 < limit)
     limit = limit2;
+  
   {
     UInt32 lenLimit = p->streamPos - p->pos;
     if (lenLimit > p->matchMaxLen)
@@ -268,28 +292,39 @@ static void MatchFinder_SetLimits(CMatchFinder *p)
   p->posLimit = p->pos + limit;
 }
 
-void MatchFinder_Init(CMatchFinder *p)
+void MatchFinder_Init_2(CMatchFinder *p, int readData)
 {
   UInt32 i;
-  for (i = 0; i < p->hashSizeSum; i++)
-    p->hash[i] = kEmptyHashValue;
+  UInt32 *hash = p->hash;
+  UInt32 num = p->hashSizeSum;
+  for (i = 0; i < num; i++)
+    hash[i] = kEmptyHashValue;
+  
   p->cyclicBufferPos = 0;
   p->buffer = p->bufferBase;
   p->pos = p->streamPos = p->cyclicBufferSize;
   p->result = SZ_OK;
   p->streamEndWasReached = 0;
-  MatchFinder_ReadBlock(p);
+  
+  if (readData)
+    MatchFinder_ReadBlock(p);
+  
   MatchFinder_SetLimits(p);
 }
 
+void MatchFinder_Init(CMatchFinder *p)
+{
+  MatchFinder_Init_2(p, True);
+}
+  
 static UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
 {
   return (p->pos - p->historySize - 1) & kNormalizeMask;
 }
 
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
+void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, size_t numItems)
 {
-  UInt32 i;
+  size_t i;
   for (i = 0; i < numItems; i++)
   {
     UInt32 value = items[i];
@@ -304,7 +339,7 @@ void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
 static void MatchFinder_Normalize(CMatchFinder *p)
 {
   UInt32 subValue = MatchFinder_GetSubValue(p);
-  MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
+  MatchFinder_Normalize3(subValue, p->hash, p->numRefs);
   MatchFinder_ReduceOffsets(p, subValue);
 }
 
@@ -465,7 +500,7 @@ static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const
 static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
 
 #define GET_MATCHES_HEADER2(minLen, ret_op) \
-  UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \
+  UInt32 lenLimit; UInt32 hv; const Byte *cur; UInt32 curMatch; \
   lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
   cur = p->buffer;
 
@@ -481,13 +516,20 @@ static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
 #define SKIP_FOOTER \
   SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
 
+#define UPDATE_maxLen { \
+    ptrdiff_t diff = (ptrdiff_t)0 - d2; \
+    const Byte *c = cur + maxLen; \
+    const Byte *lim = cur + lenLimit; \
+    for (; c != lim; c++) if (*(c + diff) != *c) break; \
+    maxLen = (UInt32)(c - cur); }
+
 static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
   UInt32 offset;
   GET_MATCHES_HEADER(2)
   HASH2_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
+  curMatch = p->hash[hv];
+  p->hash[hv] = p->pos;
   offset = 0;
   GET_MATCHES_FOOTER(offset, 1)
 }
@@ -497,35 +539,38 @@ UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   UInt32 offset;
   GET_MATCHES_HEADER(3)
   HASH_ZIP_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
+  curMatch = p->hash[hv];
+  p->hash[hv] = p->pos;
   offset = 0;
   GET_MATCHES_FOOTER(offset, 2)
 }
 
 static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 hash2Value, delta2, maxLen, offset;
+  UInt32 h2, d2, maxLen, offset, pos;
+  UInt32 *hash;
   GET_MATCHES_HEADER(3)
 
   HASH3_CALC;
 
-  delta2 = p->pos - p->hash[hash2Value];
-  curMatch = p->hash[kFix3HashSize + hashValue];
-  
-  p->hash[hash2Value] =
-  p->hash[kFix3HashSize + hashValue] = p->pos;
+  hash = p->hash;
+  pos = p->pos;
+
+  d2 = pos - hash[h2];
 
+  curMatch = hash[kFix3HashSize + hv];
+  
+  hash[h2] = pos;
+  hash[kFix3HashSize + hv] = pos;
 
   maxLen = 2;
   offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
+
+  if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
+    UPDATE_maxLen
     distances[0] = maxLen;
-    distances[1] = delta2 - 1;
+    distances[1] = d2 - 1;
     offset = 2;
     if (maxLen == lenLimit)
     {
@@ -533,44 +578,51 @@ static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
       MOVE_POS_RET;
     }
   }
+  
   GET_MATCHES_FOOTER(offset, maxLen)
 }
 
 static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
+  UInt32 h2, h3, d2, d3, maxLen, offset, pos;
+  UInt32 *hash;
   GET_MATCHES_HEADER(4)
 
   HASH4_CALC;
 
-  delta2 = p->pos - p->hash[                hash2Value];
-  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-  curMatch = p->hash[kFix4HashSize + hashValue];
-  
-  p->hash[                hash2Value] =
-  p->hash[kFix3HashSize + hash3Value] =
-  p->hash[kFix4HashSize + hashValue] = p->pos;
+  hash = p->hash;
+  pos = p->pos;
+
+  d2 = pos - hash[                h2];
+  d3 = pos - hash[kFix3HashSize + h3];
+
+  curMatch = hash[kFix4HashSize + hv];
+
+  hash[                h2] = pos;
+  hash[kFix3HashSize + h3] = pos;
+  hash[kFix4HashSize + hv] = pos;
 
-  maxLen = 1;
+  maxLen = 0;
   offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
+  
+  if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
     distances[0] = maxLen = 2;
-    distances[1] = delta2 - 1;
+    distances[1] = d2 - 1;
     offset = 2;
   }
-  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
+  
+  if (d2 != d3 && d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
   {
     maxLen = 3;
-    distances[offset + 1] = delta3 - 1;
+    distances[offset + 1] = d3 - 1;
     offset += 2;
-    delta2 = delta3;
+    d2 = d3;
   }
+  
   if (offset != 0)
   {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
+    UPDATE_maxLen
     distances[offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
@@ -578,46 +630,131 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
       MOVE_POS_RET;
     }
   }
+  
   if (maxLen < 3)
     maxLen = 3;
+  
   GET_MATCHES_FOOTER(offset, maxLen)
 }
 
+/*
+static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+{
+  UInt32 h2, h3, h4, d2, d3, d4, maxLen, offset, pos;
+  UInt32 *hash;
+  GET_MATCHES_HEADER(5)
+
+  HASH5_CALC;
+
+  hash = p->hash;
+  pos = p->pos;
+
+  d2 = pos - hash[                h2];
+  d3 = pos - hash[kFix3HashSize + h3];
+  d4 = pos - hash[kFix4HashSize + h4];
+
+  curMatch = hash[kFix5HashSize + hv];
+
+  hash[                h2] = pos;
+  hash[kFix3HashSize + h3] = pos;
+  hash[kFix4HashSize + h4] = pos;
+  hash[kFix5HashSize + hv] = pos;
+
+  maxLen = 0;
+  offset = 0;
+
+  if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
+  {
+    distances[0] = maxLen = 2;
+    distances[1] = d2 - 1;
+    offset = 2;
+    if (*(cur - d2 + 2) == cur[2])
+      distances[0] = maxLen = 3;
+    else if (d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
+    {
+      distances[2] = maxLen = 3;
+      distances[3] = d3 - 1;
+      offset = 4;
+      d2 = d3;
+    }
+  }
+  else if (d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
+  {
+    distances[0] = maxLen = 3;
+    distances[1] = d3 - 1;
+    offset = 2;
+    d2 = d3;
+  }
+  
+  if (d2 != d4 && d4 < p->cyclicBufferSize
+      && *(cur - d4) == *cur
+      && *(cur - d4 + 3) == *(cur + 3))
+  {
+    maxLen = 4;
+    distances[offset + 1] = d4 - 1;
+    offset += 2;
+    d2 = d4;
+  }
+  
+  if (offset != 0)
+  {
+    UPDATE_maxLen
+    distances[offset - 2] = maxLen;
+    if (maxLen == lenLimit)
+    {
+      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
+      MOVE_POS_RET;
+    }
+  }
+
+  if (maxLen < 4)
+    maxLen = 4;
+  
+  GET_MATCHES_FOOTER(offset, maxLen)
+}
+*/
+
 static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
+  UInt32 h2, h3, d2, d3, maxLen, offset, pos;
+  UInt32 *hash;
   GET_MATCHES_HEADER(4)
 
   HASH4_CALC;
 
-  delta2 = p->pos - p->hash[                hash2Value];
-  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-  curMatch = p->hash[kFix4HashSize + hashValue];
+  hash = p->hash;
+  pos = p->pos;
+  
+  d2 = pos - hash[                h2];
+  d3 = pos - hash[kFix3HashSize + h3];
+  
+  curMatch = hash[kFix4HashSize + hv];
 
-  p->hash[                hash2Value] =
-  p->hash[kFix3HashSize + hash3Value] =
-  p->hash[kFix4HashSize + hashValue] = p->pos;
+  hash[                h2] = pos;
+  hash[kFix3HashSize + h3] = pos;
+  hash[kFix4HashSize + hv] = pos;
 
-  maxLen = 1;
+  maxLen = 0;
   offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
+
+  if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
     distances[0] = maxLen = 2;
-    distances[1] = delta2 - 1;
+    distances[1] = d2 - 1;
     offset = 2;
   }
-  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
+  
+  if (d2 != d3 && d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
   {
     maxLen = 3;
-    distances[offset + 1] = delta3 - 1;
+    distances[offset + 1] = d3 - 1;
     offset += 2;
-    delta2 = delta3;
+    d2 = d3;
   }
+  
   if (offset != 0)
   {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
+    UPDATE_maxLen
     distances[offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
@@ -625,22 +762,103 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
       MOVE_POS_RET;
     }
   }
+  
   if (maxLen < 3)
     maxLen = 3;
+
   offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
-    distances + offset, maxLen) - (distances));
+      distances + offset, maxLen) - (distances));
   MOVE_POS_RET
 }
 
+/*
+static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+{
+  UInt32 h2, h3, h4, d2, d3, d4, maxLen, offset, pos
+  UInt32 *hash;
+  GET_MATCHES_HEADER(5)
+
+  HASH5_CALC;
+
+  hash = p->hash;
+  pos = p->pos;
+  
+  d2 = pos - hash[                h2];
+  d3 = pos - hash[kFix3HashSize + h3];
+  d4 = pos - hash[kFix4HashSize + h4];
+
+  curMatch = hash[kFix5HashSize + hv];
+
+  hash[                h2] = pos;
+  hash[kFix3HashSize + h3] = pos;
+  hash[kFix4HashSize + h4] = pos;
+  hash[kFix5HashSize + hv] = pos;
+
+  maxLen = 0;
+  offset = 0;
+
+  if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
+  {
+    distances[0] = maxLen = 2;
+    distances[1] = d2 - 1;
+    offset = 2;
+    if (*(cur - d2 + 2) == cur[2])
+      distances[0] = maxLen = 3;
+    else if (d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
+    {
+      distances[2] = maxLen = 3;
+      distances[3] = d3 - 1;
+      offset = 4;
+      d2 = d3;
+    }
+  }
+  else if (d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
+  {
+    distances[0] = maxLen = 3;
+    distances[1] = d3 - 1;
+    offset = 2;
+    d2 = d3;
+  }
+  
+  if (d2 != d4 && d4 < p->cyclicBufferSize
+      && *(cur - d4) == *cur
+      && *(cur - d4 + 3) == *(cur + 3))
+  {
+    maxLen = 4;
+    distances[offset + 1] = d4 - 1;
+    offset += 2;
+    d2 = d4;
+  }
+  
+  if (offset != 0)
+  {
+    UPDATE_maxLen
+    distances[offset - 2] = maxLen;
+    if (maxLen == lenLimit)
+    {
+      p->son[p->cyclicBufferPos] = curMatch;
+      MOVE_POS_RET;
+    }
+  }
+  
+  if (maxLen < 4)
+    maxLen = 4;
+
+  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
+      distances + offset, maxLen) - (distances));
+  MOVE_POS_RET
+}
+*/
+
 UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
   UInt32 offset;
   GET_MATCHES_HEADER(3)
   HASH_ZIP_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
+  curMatch = p->hash[hv];
+  p->hash[hv] = p->pos;
   offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
-    distances, 2) - (distances));
+      distances, 2) - (distances));
   MOVE_POS_RET
 }
 
@@ -650,8 +868,8 @@ static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
   {
     SKIP_HEADER(2)
     HASH2_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
+    curMatch = p->hash[hv];
+    p->hash[hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -663,8 +881,8 @@ void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
   {
     SKIP_HEADER(3)
     HASH_ZIP_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
+    curMatch = p->hash[hv];
+    p->hash[hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -674,12 +892,14 @@ static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {
-    UInt32 hash2Value;
+    UInt32 h2;
+    UInt32 *hash;
     SKIP_HEADER(3)
     HASH3_CALC;
-    curMatch = p->hash[kFix3HashSize + hashValue];
-    p->hash[hash2Value] =
-    p->hash[kFix3HashSize + hashValue] = p->pos;
+    hash = p->hash;
+    curMatch = hash[kFix3HashSize + hv];
+    hash[h2] =
+    hash[kFix3HashSize + hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -689,43 +909,90 @@ static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {
-    UInt32 hash2Value, hash3Value;
+    UInt32 h2, h3;
+    UInt32 *hash;
     SKIP_HEADER(4)
     HASH4_CALC;
-    curMatch = p->hash[kFix4HashSize + hashValue];
-    p->hash[                hash2Value] =
-    p->hash[kFix3HashSize + hash3Value] = p->pos;
-    p->hash[kFix4HashSize + hashValue] = p->pos;
+    hash = p->hash;
+    curMatch = hash[kFix4HashSize + hv];
+    hash[                h2] =
+    hash[kFix3HashSize + h3] =
+    hash[kFix4HashSize + hv] = p->pos;
+    SKIP_FOOTER
+  }
+  while (--num != 0);
+}
+
+/*
+static void Bt5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+{
+  do
+  {
+    UInt32 h2, h3, h4;
+    UInt32 *hash;
+    SKIP_HEADER(5)
+    HASH5_CALC;
+    hash = p->hash;
+    curMatch = hash[kFix5HashSize + hv];
+    hash[                h2] =
+    hash[kFix3HashSize + h3] =
+    hash[kFix4HashSize + h4] =
+    hash[kFix5HashSize + hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
 }
+*/
 
 static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {
-    UInt32 hash2Value, hash3Value;
+    UInt32 h2, h3;
+    UInt32 *hash;
     SKIP_HEADER(4)
     HASH4_CALC;
-    curMatch = p->hash[kFix4HashSize + hashValue];
-    p->hash[                hash2Value] =
-    p->hash[kFix3HashSize + hash3Value] =
-    p->hash[kFix4HashSize + hashValue] = p->pos;
+    hash = p->hash;
+    curMatch = hash[kFix4HashSize + hv];
+    hash[                h2] =
+    hash[kFix3HashSize + h3] =
+    hash[kFix4HashSize + hv] = p->pos;
     p->son[p->cyclicBufferPos] = curMatch;
     MOVE_POS
   }
   while (--num != 0);
 }
 
+/*
+static void Hc5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+{
+  do
+  {
+    UInt32 h2, h3, h4;
+    UInt32 *hash;
+    SKIP_HEADER(5)
+    HASH5_CALC;
+    hash = p->hash;
+    curMatch = p->hash[kFix5HashSize + hv];
+    hash[                h2] =
+    hash[kFix3HashSize + h3] =
+    hash[kFix4HashSize + h4] =
+    hash[kFix5HashSize + hv] = p->pos;
+    p->son[p->cyclicBufferPos] = curMatch;
+    MOVE_POS
+  }
+  while (--num != 0);
+}
+*/
+
 void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {
     SKIP_HEADER(3)
     HASH_ZIP_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
+    curMatch = p->hash[hv];
+    p->hash[hv] = p->pos;
     p->son[p->cyclicBufferPos] = curMatch;
     MOVE_POS
   }
@@ -735,13 +1002,22 @@ void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
 {
   vTable->Init = (Mf_Init_Func)MatchFinder_Init;
-  vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
   vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
   vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
   if (!p->btMode)
   {
-    vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
-    vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
+    /* if (p->numHashBytes <= 4) */
+    {
+      vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
+      vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
+    }
+    /*
+    else
+    {
+      vTable->GetMatches = (Mf_GetMatches_Func)Hc5_MatchFinder_GetMatches;
+      vTable->Skip = (Mf_Skip_Func)Hc5_MatchFinder_Skip;
+    }
+    */
   }
   else if (p->numHashBytes == 2)
   {
@@ -753,9 +1029,16 @@ void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
     vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
     vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
   }
-  else
+  else /* if (p->numHashBytes == 4) */
   {
     vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
     vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
   }
+  /*
+  else
+  {
+    vTable->GetMatches = (Mf_GetMatches_Func)Bt5_MatchFinder_GetMatches;
+    vTable->Skip = (Mf_Skip_Func)Bt5_MatchFinder_Skip;
+  }
+  */
 }
diff --git a/third_party/lzma_sdk/LzFind.h b/third_party/lzma_sdk/LzFind.h
index 010c4b9..d119944 100644
--- a/third_party/lzma_sdk/LzFind.h
+++ b/third_party/lzma_sdk/LzFind.h
@@ -1,14 +1,12 @@
 /* LzFind.h -- Match finder for LZ algorithms
-2009-04-22 : Igor Pavlov : Public domain */
+2015-10-15 : Igor Pavlov : Public domain */
 
 #ifndef __LZ_FIND_H
 #define __LZ_FIND_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 typedef UInt32 CLzRef;
 
@@ -23,6 +21,11 @@ typedef struct _CMatchFinder
   UInt32 cyclicBufferPos;
   UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
 
+  Byte streamEndWasReached;
+  Byte btMode;
+  Byte bigHash;
+  Byte directInput;
+
   UInt32 matchMaxLen;
   CLzRef *hash;
   CLzRef *son;
@@ -31,30 +34,30 @@ typedef struct _CMatchFinder
 
   Byte *bufferBase;
   ISeqInStream *stream;
-  int streamEndWasReached;
-
+  
   UInt32 blockSize;
   UInt32 keepSizeBefore;
   UInt32 keepSizeAfter;
 
   UInt32 numHashBytes;
-  int directInput;
   size_t directInputRem;
-  int btMode;
-  int bigHash;
   UInt32 historySize;
   UInt32 fixedHashSize;
   UInt32 hashSizeSum;
-  UInt32 numSons;
   SRes result;
   UInt32 crc[256];
+  size_t numRefs;
 } CMatchFinder;
 
 #define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
-#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
 
 #define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
 
+#define Inline_MatchFinder_IsFinishedOK(p) \
+    ((p)->streamEndWasReached \
+        && (p)->streamPos == (p)->pos \
+        && (!(p)->directInput || (p)->directInputRem == 0))
+      
 int MatchFinder_NeedMove(CMatchFinder *p);
 Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
 void MatchFinder_MoveBlock(CMatchFinder *p);
@@ -70,7 +73,7 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
     UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
     ISzAlloc *alloc);
 void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
+void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, size_t numItems);
 void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
 
 UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
@@ -84,7 +87,6 @@ Conditions:
 */
 
 typedef void (*Mf_Init_Func)(void *object);
-typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
 typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
 typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
 typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
@@ -93,7 +95,6 @@ typedef void (*Mf_Skip_Func)(void *object, UInt32);
 typedef struct _IMatchFinder
 {
   Mf_Init_Func Init;
-  Mf_GetIndexByte_Func GetIndexByte;
   Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
   Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
   Mf_GetMatches_Func GetMatches;
@@ -102,14 +103,15 @@ typedef struct _IMatchFinder
 
 void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
 
+void MatchFinder_Init_2(CMatchFinder *p, int readData);
 void MatchFinder_Init(CMatchFinder *p);
+
 UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
 UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
+
 void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
 void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/LzHash.h b/third_party/lzma_sdk/LzHash.h
index f3e8996..e7c9423 100644
--- a/third_party/lzma_sdk/LzHash.h
+++ b/third_party/lzma_sdk/LzHash.h
@@ -1,5 +1,5 @@
 /* LzHash.h -- HASH functions for LZ algorithms
-2009-02-07 : Igor Pavlov : Public domain */
+2015-04-12 : Igor Pavlov : Public domain */
 
 #ifndef __LZ_HASH_H
 #define __LZ_HASH_H
@@ -12,43 +12,46 @@
 #define kFix4HashSize (kHash2Size + kHash3Size)
 #define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
 
-#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8);
+#define HASH2_CALC hv = cur[0] | ((UInt32)cur[1] << 8);
 
 #define HASH3_CALC { \
   UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
-  hash2Value = temp & (kHash2Size - 1); \
-  hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
+  h2 = temp & (kHash2Size - 1); \
+  hv = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
 
 #define HASH4_CALC { \
   UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
-  hash2Value = temp & (kHash2Size - 1); \
-  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
-  hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
+  h2 = temp & (kHash2Size - 1); \
+  temp ^= ((UInt32)cur[2] << 8); \
+  h3 = temp & (kHash3Size - 1); \
+  hv = (temp ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
 
 #define HASH5_CALC { \
   UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
-  hash2Value = temp & (kHash2Size - 1); \
-  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
-  hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \
-  hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \
-  hash4Value &= (kHash4Size - 1); }
+  h2 = temp & (kHash2Size - 1); \
+  temp ^= ((UInt32)cur[2] << 8); \
+  h3 = temp & (kHash3Size - 1); \
+  temp ^= (p->crc[cur[3]] << 5); \
+  h4 = temp & (kHash4Size - 1); \
+  hv = (temp ^ (p->crc[cur[4]] << 3)) & p->hashMask; }
 
-/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
-#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
+/* #define HASH_ZIP_CALC hv = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
+#define HASH_ZIP_CALC hv = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
 
 
 #define MT_HASH2_CALC \
-  hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
+  h2 = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
 
 #define MT_HASH3_CALC { \
   UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
-  hash2Value = temp & (kHash2Size - 1); \
-  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
+  h2 = temp & (kHash2Size - 1); \
+  h3 = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
 
 #define MT_HASH4_CALC { \
   UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
-  hash2Value = temp & (kHash2Size - 1); \
-  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
-  hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
+  h2 = temp & (kHash2Size - 1); \
+  temp ^= ((UInt32)cur[2] << 8); \
+  h3 = temp & (kHash3Size - 1); \
+  h4 = (temp ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
 
 #endif
diff --git a/third_party/lzma_sdk/Lzma2Dec.c b/third_party/lzma_sdk/Lzma2Dec.c
index 7ea1cc9..b84f88a 100644
--- a/third_party/lzma_sdk/Lzma2Dec.c
+++ b/third_party/lzma_sdk/Lzma2Dec.c
@@ -1,8 +1,10 @@
 /* Lzma2Dec.c -- LZMA2 Decoder
-2009-05-03 : Igor Pavlov : Public domain */
+2015-11-09 : Igor Pavlov : Public domain */
 
 /* #define SHOW_DEBUG_INFO */
 
+#include "Precomp.h"
+
 #ifdef SHOW_DEBUG_INFO
 #include <stdio.h>
 #endif
@@ -97,12 +99,12 @@ void Lzma2Dec_Init(CLzma2Dec *p)
 
 static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b)
 {
-  switch(p->state)
+  switch (p->state)
   {
     case LZMA2_STATE_CONTROL:
       p->control = b;
-      PRF(printf("\n %4X ", p->decoder.dicPos));
-      PRF(printf(" %2X", 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))
@@ -122,7 +124,7 @@ static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b)
     case LZMA2_STATE_UNPACK1:
       p->unpackSize |= (UInt32)b;
       p->unpackSize++;
-      PRF(printf(" %8d", p->unpackSize));
+      PRF(printf(" %8u", (unsigned)p->unpackSize));
       return (LZMA2_IS_UNCOMPRESSED_STATE(p)) ? LZMA2_STATE_DATA : LZMA2_STATE_PACK0;
     
     case LZMA2_STATE_PACK0:
@@ -132,13 +134,13 @@ static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b)
     case LZMA2_STATE_PACK1:
       p->packSize |= (UInt32)b;
       p->packSize++;
-      PRF(printf(" %8d", 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:
     {
-      int lc, lp;
+      unsigned lc, lp;
       if (b >= (9 * 5 * 5))
         return LZMA2_STATE_ERROR;
       lc = b % 9;
@@ -177,13 +179,16 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
   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)
@@ -193,8 +198,15 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
       }
       (*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;
@@ -220,7 +232,10 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
           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);
         }
@@ -229,7 +244,10 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
           srcSizeCur = destSizeCur;
 
         if (srcSizeCur == 0)
+        {
+          p->state = LZMA2_STATE_ERROR;
           return SZ_ERROR_DATA;
+        }
 
         LzmaDec_UpdateWithUncompressed(&p->decoder, src, srcSizeCur);
 
@@ -245,17 +263,21 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
 
         if (p->state == LZMA2_STATE_DATA)
         {
-          int mode = LZMA2_GET_LZMA_MODE(p);
+          unsigned mode = LZMA2_GET_LZMA_MODE(p);
           Bool initDic = (mode == 3);
-          Bool initState = (mode > 0);
+          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;
           
@@ -274,16 +296,22 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
 
         if (srcSizeCur == 0 && outSizeProcessed == 0)
         {
-          if (*status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK ||
-              p->unpackSize != 0 || p->packSize != 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;
 }
@@ -330,27 +358,21 @@ SRes Lzma2Dec_DecodeToBuf(CLzma2Dec *p, Byte *dest, SizeT *destLen, const Byte *
 SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
     Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc)
 {
-  CLzma2Dec decoder;
+  CLzma2Dec p;
   SRes res;
   SizeT outSize = *destLen, inSize = *srcLen;
-  Byte props[LZMA_PROPS_SIZE];
-
-  Lzma2Dec_Construct(&decoder);
-
   *destLen = *srcLen = 0;
   *status = LZMA_STATUS_NOT_SPECIFIED;
-  decoder.decoder.dic = dest;
-  decoder.decoder.dicBufSize = outSize;
-
-  RINOK(Lzma2Dec_GetOldProps(prop, props));
-  RINOK(LzmaDec_AllocateProbs(&decoder.decoder, props, LZMA_PROPS_SIZE, alloc));
-  
+  Lzma2Dec_Construct(&p);
+  RINOK(Lzma2Dec_AllocateProbs(&p, prop, alloc));
+  p.decoder.dic = dest;
+  p.decoder.dicBufSize = outSize;
+  Lzma2Dec_Init(&p);
   *srcLen = inSize;
-  res = Lzma2Dec_DecodeToDic(&decoder, outSize, src, srcLen, finishMode, status);
-  *destLen = decoder.decoder.dicPos;
+  res = Lzma2Dec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
+  *destLen = p.decoder.dicPos;
   if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
     res = SZ_ERROR_INPUT_EOF;
-
-  LzmaDec_FreeProbs(&decoder.decoder, alloc);
+  Lzma2Dec_FreeProbs(&p, alloc);
   return res;
 }
diff --git a/third_party/lzma_sdk/Lzma2Dec.h b/third_party/lzma_sdk/Lzma2Dec.h
index 6bc07bb..e6a0f6e 100644
--- a/third_party/lzma_sdk/Lzma2Dec.h
+++ b/third_party/lzma_sdk/Lzma2Dec.h
@@ -1,14 +1,12 @@
 /* Lzma2Dec.h -- LZMA2 Decoder
-2009-05-03 : Igor Pavlov : Public domain */
+2015-05-13 : Igor Pavlov : Public domain */
 
 #ifndef __LZMA2_DEC_H
 #define __LZMA2_DEC_H
 
 #include "LzmaDec.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 /* ---------- State Interface ---------- */
 
@@ -17,7 +15,7 @@ typedef struct
   CLzmaDec decoder;
   UInt32 packSize;
   UInt32 unpackSize;
-  int state;
+  unsigned state;
   Byte control;
   Bool needInitDic;
   Bool needInitState;
@@ -77,8 +75,6 @@ Returns:
 SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
     Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/LzmaDec.c b/third_party/lzma_sdk/LzmaDec.c
index 2036761..27efbab 100644
--- a/third_party/lzma_sdk/LzmaDec.c
+++ b/third_party/lzma_sdk/LzmaDec.c
@@ -1,5 +1,7 @@
 /* LzmaDec.c -- LZMA Decoder
-2009-09-20 : Igor Pavlov : Public domain */
+2015-06-23 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include "LzmaDec.h"
 
@@ -44,6 +46,13 @@
   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)
@@ -105,14 +114,14 @@
 #define Literal (RepLenCoder + kNumLenProbs)
 
 #define LZMA_BASE_SIZE 1846
-#define LZMA_LIT_SIZE 768
-
-#define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
+#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.
@@ -124,8 +133,8 @@ Out:
   p->remainLen:
     < kMatchSpecLenStart : normal remain
     = kMatchSpecLenStart : finished
-    = kMatchSpecLenStart + 1 : Flush marker
-    = kMatchSpecLenStart + 2 : State Init Marker
+    = 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)
@@ -163,38 +172,62 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
       unsigned symbol;
       UPDATE_0(prob);
       prob = probs + Literal;
-      if (checkDicSize != 0 || processedPos != 0)
-        prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +
-        (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
+      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;
-        do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);
+        #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 = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
+        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;
-          matchByte <<= 1;
-          bit = (matchByte & offs);
-          probLit = prob + offs + bit + symbol;
-          GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
+          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;
-      processedPos++;
       continue;
     }
-    else
+    
     {
       UPDATE_1(prob);
       prob = probs + IsRep + state;
@@ -217,7 +250,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
           IF_BIT_0(prob)
           {
             UPDATE_0(prob);
-            dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
+            dic[dicPos] = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)];
             dicPos++;
             processedPos++;
             state = state < kNumLitStates ? 9 : 11;
@@ -258,6 +291,8 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         state = state < kNumLitStates ? 8 : 11;
         prob = probs + RepLenCoder;
       }
+      
+      #ifdef _LZMA_SIZE_OPT
       {
         unsigned limit, offset;
         CLzmaProb *probLen = prob + LenChoice;
@@ -290,6 +325,42 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         TREE_DECODE(probLen, limit, 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)
       {
@@ -300,7 +371,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         if (distance >= kStartPosModelIndex)
         {
           unsigned posSlot = (unsigned)distance;
-          int numDirectBits = (int)(((distance >> 1) - 1));
+          unsigned numDirectBits = (unsigned)(((distance >> 1) - 1));
           distance = (2 | (distance & 1));
           if (posSlot < kEndPosModelIndex)
           {
@@ -359,6 +430,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
             }
           }
         }
+        
         rep3 = rep2;
         rep2 = rep1;
         rep1 = rep0;
@@ -366,26 +438,39 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         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;
 
-      if (limit == dicPos)
-        return SZ_ERROR_DATA;
       {
-        SizeT rem = limit - dicPos;
-        unsigned curLen = ((rem < len) ? (unsigned)rem : len);
-        SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);
+        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 (pos + curLen <= dicBufSize)
+        if (curLen <= dicBufSize - pos)
         {
           Byte *dest = dic + dicPos;
           ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
@@ -409,7 +494,9 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
     }
   }
   while (dicPos < limit && buf < bufLimit);
+
   NORMALIZE;
+  
   p->buf = buf;
   p->range = range;
   p->code = code;
@@ -433,18 +520,20 @@ static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
     SizeT dicPos = p->dicPos;
     SizeT dicBufSize = p->dicBufSize;
     unsigned len = p->remainLen;
-    UInt32 rep0 = p->reps[0];
-    if (limit - dicPos < len)
-      len = (unsigned)(limit - dicPos);
+    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)
+    while (len != 0)
     {
-      dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
+      len--;
+      dic[dicPos] = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)];
       dicPos++;
     }
     p->dicPos = dicPos;
@@ -462,17 +551,19 @@ static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte
       if (limit - p->dicPos > rem)
         limit2 = p->dicPos + rem;
     }
+    
     RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
-    if (p->processedPos >= p->prop.dicSize)
+    
+    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;
 }
 
@@ -489,12 +580,12 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
   UInt32 range = p->range;
   UInt32 code = p->code;
   const Byte *bufLimit = buf + inSize;
-  CLzmaProb *probs = p->probs;
+  const CLzmaProb *probs = p->probs;
   unsigned state = p->state;
   ELzmaDummy res;
 
   {
-    CLzmaProb *prob;
+    const CLzmaProb *prob;
     UInt32 bound;
     unsigned ttt;
     unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
@@ -508,9 +599,9 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
 
       prob = probs + Literal;
       if (p->checkDicSize != 0 || p->processedPos != 0)
-        prob += (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))));
+        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)
       {
@@ -520,13 +611,13 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
       else
       {
         unsigned matchByte = p->dic[p->dicPos - p->reps[0] +
-            ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];
+            (p->dicPos < p->reps[0] ? p->dicBufSize : 0)];
         unsigned offs = 0x100;
         unsigned symbol = 1;
         do
         {
           unsigned bit;
-          CLzmaProb *probLit;
+          const CLzmaProb *probLit;
           matchByte <<= 1;
           bit = (matchByte & offs);
           probLit = prob + offs + bit + symbol;
@@ -596,7 +687,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
       }
       {
         unsigned limit, offset;
-        CLzmaProb *probLen = prob + LenChoice;
+        const CLzmaProb *probLen = prob + LenChoice;
         IF_BIT_0_CHECK(probLen)
         {
           UPDATE_0_CHECK;
@@ -636,7 +727,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
         TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
         if (posSlot >= kStartPosModelIndex)
         {
-          int numDirectBits = ((posSlot >> 1) - 1);
+          unsigned numDirectBits = ((posSlot >> 1) - 1);
 
           /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */
 
@@ -675,13 +766,6 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
 }
 
 
-static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data)
-{
-  p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]);
-  p->range = 0xFFFFFFFF;
-  p->needFlush = 0;
-}
-
 void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
 {
   p->needFlush = 1;
@@ -706,8 +790,8 @@ void LzmaDec_Init(CLzmaDec *p)
 
 static void LzmaDec_InitStateReal(CLzmaDec *p)
 {
-  UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp));
-  UInt32 i;
+  SizeT numProbs = LzmaProps_GetNumProbs(&p->prop);
+  SizeT i;
   CLzmaProb *probs = p->probs;
   for (i = 0; i < numProbs; i++)
     probs[i] = kBitModelTotal >> 1;
@@ -729,7 +813,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
   {
       int checkEndMarkNow;
 
-      if (p->needFlush != 0)
+      if (p->needFlush)
       {
         for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
           p->tempBuf[p->tempBufSize++] = *src++;
@@ -740,8 +824,13 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
         }
         if (p->tempBuf[0] != 0)
           return SZ_ERROR_DATA;
-
-        LzmaDec_InitRc(p, p->tempBuf);
+        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;
       }
 
@@ -825,7 +914,16 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
         p->buf = p->tempBuf;
         if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)
           return SZ_ERROR_DATA;
-        lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));
+        
+        {
+          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;
@@ -880,13 +978,13 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *sr
 void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->probs);
-  p->probs = 0;
+  p->probs = NULL;
 }
 
 static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->dic);
-  p->dic = 0;
+  p->dic = NULL;
 }
 
 void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
@@ -924,12 +1022,12 @@ SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
 static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc)
 {
   UInt32 numProbs = LzmaProps_GetNumProbs(propNew);
-  if (p->probs == 0 || numProbs != p->numProbs)
+  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 == 0)
+    if (!p->probs)
       return SZ_ERROR_MEM;
   }
   return SZ_OK;
@@ -950,12 +1048,22 @@ SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAll
   SizeT dicBufSize;
   RINOK(LzmaProps_Decode(&propNew, props, propsSize));
   RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
-  dicBufSize = propNew.dicSize;
-  if (p->dic == 0 || dicBufSize != p->dicBufSize)
+
+  {
+    UInt32 dictSize = propNew.dicSize;
+    SizeT mask = ((UInt32)1 << 12) - 1;
+         if (dictSize >= ((UInt32)1 << 30)) mask = ((UInt32)1 << 22) - 1;
+    else if (dictSize >= ((UInt32)1 << 22)) mask = ((UInt32)1 << 20) - 1;;
+    dicBufSize = ((SizeT)dictSize + mask) & ~mask;
+    if (dicBufSize < dictSize)
+      dicBufSize = dictSize;
+  }
+
+  if (!p->dic || dicBufSize != p->dicBufSize)
   {
     LzmaDec_FreeDict(p, alloc);
     p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);
-    if (p->dic == 0)
+    if (!p->dic)
     {
       LzmaDec_FreeProbs(p, alloc);
       return SZ_ERROR_MEM;
@@ -972,28 +1080,21 @@ SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
 {
   CLzmaDec p;
   SRes res;
-  SizeT inSize = *srcLen;
-  SizeT outSize = *destLen;
-  *srcLen = *destLen = 0;
+  SizeT outSize = *destLen, inSize = *srcLen;
+  *destLen = *srcLen = 0;
+  *status = LZMA_STATUS_NOT_SPECIFIED;
   if (inSize < RC_INIT_SIZE)
     return SZ_ERROR_INPUT_EOF;
-
   LzmaDec_Construct(&p);
-  res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc);
-  if (res != 0)
-    return res;
+  RINOK(LzmaDec_AllocateProbs(&p, propData, propSize, alloc));
   p.dic = dest;
   p.dicBufSize = outSize;
-
   LzmaDec_Init(&p);
-  
   *srcLen = inSize;
   res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
-
+  *destLen = p.dicPos;
   if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
     res = SZ_ERROR_INPUT_EOF;
-
-  (*destLen) = p.dicPos;
   LzmaDec_FreeProbs(&p, alloc);
   return res;
 }
diff --git a/third_party/lzma_sdk/LzmaDec.h b/third_party/lzma_sdk/LzmaDec.h
index bf7f084..cc44dae 100644
--- a/third_party/lzma_sdk/LzmaDec.h
+++ b/third_party/lzma_sdk/LzmaDec.h
@@ -1,14 +1,12 @@
 /* LzmaDec.h -- LZMA Decoder
-2009-02-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __LZMA_DEC_H
 #define __LZMA_DEC_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 /* #define _LZMA_PROB32 */
 /* _LZMA_PROB32 can increase the speed on some CPUs,
@@ -224,8 +222,6 @@ SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
     const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
     ELzmaStatus *status, ISzAlloc *alloc);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/LzmaEnc.c b/third_party/lzma_sdk/LzmaEnc.c
index cf13138..9c164e6 100644
--- a/third_party/lzma_sdk/LzmaEnc.c
+++ b/third_party/lzma_sdk/LzmaEnc.c
@@ -1,5 +1,7 @@
 /* LzmaEnc.c -- LZMA Encoder
-2010-04-16 : Igor Pavlov : Public domain */
+2015-11-08 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
 
 #include <string.h>
 
@@ -18,9 +20,12 @@
 #endif
 
 #ifdef SHOW_STAT
-static int ttt = 0;
+static unsigned g_STAT_OFFSET = 0;
 #endif
 
+#define kMaxHistorySize ((UInt32)3 << 29)
+/* #define kMaxHistorySize ((UInt32)7 << 29) */
+
 #define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1)
 
 #define kBlockSize (9 << 10)
@@ -46,6 +51,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p)
 {
   p->level = 5;
   p->dictSize = p->mc = 0;
+  p->reduceSize = (UInt64)(Int64)-1;
   p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;
   p->writeEndMark = 0;
 }
@@ -55,15 +61,28 @@ void LzmaEncProps_Normalize(CLzmaEncProps *p)
   int level = p->level;
   if (level < 0) level = 5;
   p->level = level;
+  
   if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26)));
+  if (p->dictSize > p->reduceSize)
+  {
+    unsigned i;
+    for (i = 11; i <= 30; i++)
+    {
+      if ((UInt32)p->reduceSize <= ((UInt32)2 << i)) { p->dictSize = ((UInt32)2 << i); break; }
+      if ((UInt32)p->reduceSize <= ((UInt32)3 << i)) { p->dictSize = ((UInt32)3 << i); break; }
+    }
+  }
+
   if (p->lc < 0) p->lc = 3;
   if (p->lp < 0) p->lp = 0;
   if (p->pb < 0) p->pb = 2;
+
   if (p->algo < 0) p->algo = (level < 5 ? 0 : 1);
   if (p->fb < 0) p->fb = (level < 7 ? 32 : 64);
   if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1);
   if (p->numHashBytes < 0) p->numHashBytes = 4;
-  if (p->mc == 0)  p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
+  if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
+  
   if (p->numThreads < 0)
     p->numThreads =
       #ifndef _7ZIP_ST
@@ -80,17 +99,18 @@ UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
   return props.dictSize;
 }
 
+#if (_MSC_VER >= 1400)
+/* BSR code is fast for some new CPUs */
 /* #define LZMA_LOG_BSR */
-/* Define it for Intel's CPU */
-
+#endif
 
 #ifdef LZMA_LOG_BSR
 
-#define kDicLogSizeMaxCompress 30
+#define kDicLogSizeMaxCompress 32
 
 #define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
 
-UInt32 GetPosSlot1(UInt32 pos)
+static UInt32 GetPosSlot1(UInt32 pos)
 {
   UInt32 res;
   BSR2_RET(pos, res);
@@ -101,27 +121,44 @@ UInt32 GetPosSlot1(UInt32 pos)
 
 #else
 
-#define kNumLogBits (9 + (int)sizeof(size_t) / 2)
+#define kNumLogBits (9 + sizeof(size_t) / 2)
+/* #define kNumLogBits (11 + sizeof(size_t) / 8 * 3) */
+
 #define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
 
-void LzmaEnc_FastPosInit(Byte *g_FastPos)
+static void LzmaEnc_FastPosInit(Byte *g_FastPos)
 {
-  int c = 2, slotFast;
+  unsigned slot;
   g_FastPos[0] = 0;
   g_FastPos[1] = 1;
+  g_FastPos += 2;
   
-  for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++)
+  for (slot = 2; slot < kNumLogBits * 2; slot++)
   {
-    UInt32 k = (1 << ((slotFast >> 1) - 1));
-    UInt32 j;
-    for (j = 0; j < k; j++, c++)
-      g_FastPos[c] = (Byte)slotFast;
+    size_t k = ((size_t)1 << ((slot >> 1) - 1));
+    size_t j;
+    for (j = 0; j < k; j++)
+      g_FastPos[j] = (Byte)slot;
+    g_FastPos += k;
   }
 }
 
+/* we can use ((limit - pos) >> 31) only if (pos < ((UInt32)1 << 31)) */
+/*
 #define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
   (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
   res = p->g_FastPos[pos >> i] + (i * 2); }
+*/
+
+/*
+#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
+  (0 - (((((UInt32)1 << (kNumLogBits)) - 1) - (pos >> 6)) >> 31))); \
+  res = p->g_FastPos[pos >> i] + (i * 2); }
+*/
+
+#define BSR2_RET(pos, res) { UInt32 i = (pos < (1 << (kNumLogBits + 6))) ? 6 : 6 + kNumLogBits - 1; \
+  res = p->g_FastPos[pos >> i] + (i * 2); }
+
 /*
 #define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
   p->g_FastPos[pos >> 6] + 12 : \
@@ -201,6 +238,7 @@ typedef struct
 
 #define kNumStates 12
 
+
 typedef struct
 {
   CLzmaProb choice;
@@ -210,14 +248,16 @@ typedef struct
   CLzmaProb high[kLenNumHighSymbols];
 } CLenEnc;
 
+
 typedef struct
 {
   CLenEnc p;
-  UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
   UInt32 tableSize;
+  UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
   UInt32 counters[LZMA_NUM_PB_STATES_MAX];
 } CLenPriceEnc;
 
+
 typedef struct
 {
   UInt32 range;
@@ -232,10 +272,14 @@ typedef struct
   SRes res;
 } CRangeEnc;
 
+
 typedef struct
 {
   CLzmaProb *litProbs;
 
+  UInt32 state;
+  UInt32 reps[LZMA_NUM_REPS];
+
   CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
   CLzmaProb isRep[kNumStates];
   CLzmaProb isRepG0[kNumStates];
@@ -249,15 +293,49 @@ typedef struct
   
   CLenPriceEnc lenEnc;
   CLenPriceEnc repLenEnc;
-
-  UInt32 reps[LZMA_NUM_REPS];
-  UInt32 state;
 } CSaveState;
 
+
 typedef struct
 {
-  IMatchFinder matchFinder;
   void *matchFinderObj;
+  IMatchFinder matchFinder;
+
+  UInt32 optimumEndIndex;
+  UInt32 optimumCurrentIndex;
+
+  UInt32 longestMatchLength;
+  UInt32 numPairs;
+  UInt32 numAvail;
+
+  UInt32 numFastBytes;
+  UInt32 additionalOffset;
+  UInt32 reps[LZMA_NUM_REPS];
+  UInt32 state;
+
+  unsigned lc, lp, pb;
+  unsigned lpMask, pbMask;
+  unsigned lclp;
+
+  CLzmaProb *litProbs;
+
+  Bool fastMode;
+  Bool writeEndMark;
+  Bool finished;
+  Bool multiThread;
+  Bool needInit;
+
+  UInt64 nowPos64;
+  
+  UInt32 matchPriceCount;
+  UInt32 alignPriceCount;
+
+  UInt32 distTableSize;
+
+  UInt32 dictSize;
+  SRes result;
+
+  CRangeEnc rc;
 
   #ifndef _7ZIP_ST
   Bool mtMode;
@@ -270,12 +348,6 @@ typedef struct
   Byte pad[128];
   #endif
   
-  UInt32 optimumEndIndex;
-  UInt32 optimumCurrentIndex;
-
-  UInt32 longestMatchLength;
-  UInt32 numPairs;
-  UInt32 numAvail;
   COptimal opt[kNumOpts];
   
   #ifndef LZMA_LOG_BSR
@@ -284,22 +356,10 @@ typedef struct
 
   UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
   UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
-  UInt32 numFastBytes;
-  UInt32 additionalOffset;
-  UInt32 reps[LZMA_NUM_REPS];
-  UInt32 state;
 
   UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
   UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances];
   UInt32 alignPrices[kAlignTableSize];
-  UInt32 alignPriceCount;
-
-  UInt32 distTableSize;
-
-  unsigned lc, lp, pb;
-  unsigned lpMask, pbMask;
-
-  CLzmaProb *litProbs;
 
   CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
   CLzmaProb isRep[kNumStates];
@@ -315,27 +375,14 @@ typedef struct
   CLenPriceEnc lenEnc;
   CLenPriceEnc repLenEnc;
 
-  unsigned lclp;
-
-  Bool fastMode;
-  
-  CRangeEnc rc;
-
-  Bool writeEndMark;
-  UInt64 nowPos64;
-  UInt32 matchPriceCount;
-  Bool finished;
-  Bool multiThread;
-
-  SRes result;
-  UInt32 dictSize;
-  UInt32 matchFinderCycles;
-
-  int needInit;
-
   CSaveState saveState;
+
+  #ifndef _7ZIP_ST
+  Byte pad2[128];
+  #endif
 } CLzmaEnc;
 
+
 void LzmaEnc_SaveState(CLzmaEncHandle pp)
 {
   CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -359,7 +406,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp)
   memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
   memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
   memcpy(dest->reps, p->reps, sizeof(p->reps));
-  memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
+  memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << p->lclp) * sizeof(CLzmaProb));
 }
 
 void LzmaEnc_RestoreState(CLzmaEncHandle pp)
@@ -385,7 +432,7 @@ void LzmaEnc_RestoreState(CLzmaEncHandle pp)
   memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
   memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
   memcpy(dest->reps, p->reps, sizeof(p->reps));
-  memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb));
+  memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << dest->lclp) * sizeof(CLzmaProb));
 }
 
 SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
@@ -394,11 +441,14 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
   CLzmaEncProps props = *props2;
   LzmaEncProps_Normalize(&props);
 
-  if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX ||
-      props.dictSize > ((UInt32)1 << kDicLogSizeMaxCompress) || props.dictSize > ((UInt32)1 << 30))
+  if (props.lc > LZMA_LC_MAX
+      || props.lp > LZMA_LP_MAX
+      || props.pb > LZMA_PB_MAX
+      || props.dictSize > ((UInt64)1 << kDicLogSizeMaxCompress)
+      || props.dictSize > kMaxHistorySize)
     return SZ_ERROR_PARAM;
+
   p->dictSize = props.dictSize;
-  p->matchFinderCycles = props.mc;
   {
     unsigned fb = props.fb;
     if (fb < 5)
@@ -411,7 +461,7 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
   p->lp = props.lp;
   p->pb = props.pb;
   p->fastMode = (props.algo == 0);
-  p->matchFinderBase.btMode = props.btMode;
+  p->matchFinderBase.btMode = (Byte)(props.btMode ? 1 : 0);
   {
     UInt32 numHashBytes = 4;
     if (props.btMode)
@@ -455,8 +505,8 @@ static const int kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11,
 
 static void RangeEnc_Construct(CRangeEnc *p)
 {
-  p->outStream = 0;
-  p->bufBase = 0;
+  p->outStream = NULL;
+  p->bufBase = NULL;
 }
 
 #define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)
@@ -464,10 +514,10 @@ static void RangeEnc_Construct(CRangeEnc *p)
 #define RC_BUF_SIZE (1 << 16)
 static int RangeEnc_Alloc(CRangeEnc *p, ISzAlloc *alloc)
 {
-  if (p->bufBase == 0)
+  if (!p->bufBase)
   {
     p->bufBase = (Byte *)alloc->Alloc(alloc, RC_BUF_SIZE);
-    if (p->bufBase == 0)
+    if (!p->bufBase)
       return 0;
     p->bufLim = p->bufBase + RC_BUF_SIZE;
   }
@@ -508,7 +558,7 @@ static void RangeEnc_FlushStream(CRangeEnc *p)
 
 static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
 {
-  if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0)
+  if ((UInt32)p->low < (UInt32)0xFF000000 || (unsigned)(p->low >> 32) != 0)
   {
     Byte temp = p->cache;
     do
@@ -534,7 +584,7 @@ static void RangeEnc_FlushData(CRangeEnc *p)
     RangeEnc_ShiftLow(p);
 }
 
-static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits)
+static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, unsigned numBits)
 {
   do
   {
@@ -597,7 +647,7 @@ static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol,
   while (symbol < 0x10000);
 }
 
-void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
+static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
 {
   UInt32 i;
   for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits))
@@ -633,7 +683,7 @@ void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
 #define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits]
 #define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
 
-static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *ProbPrices)
+static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, const UInt32 *ProbPrices)
 {
   UInt32 price = 0;
   symbol |= 0x100;
@@ -646,7 +696,7 @@ static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *Pro
   return price;
 }
 
-static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, UInt32 *ProbPrices)
+static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, const UInt32 *ProbPrices)
 {
   UInt32 price = 0;
   UInt32 offs = 0x100;
@@ -690,7 +740,7 @@ static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLeve
   }
 }
 
-static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
+static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, const UInt32 *ProbPrices)
 {
   UInt32 price = 0;
   symbol |= (1 << numBitLevels);
@@ -702,7 +752,7 @@ static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 s
   return price;
 }
 
-static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
+static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, const UInt32 *ProbPrices)
 {
   UInt32 price = 0;
   UInt32 m = 1;
@@ -753,7 +803,7 @@ static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posSt
   }
 }
 
-static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, UInt32 *ProbPrices)
+static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, const UInt32 *ProbPrices)
 {
   UInt32 a0 = GET_PRICE_0a(p->choice);
   UInt32 a1 = GET_PRICE_1a(p->choice);
@@ -776,20 +826,20 @@ static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UIn
     prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
 }
 
-static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, UInt32 *ProbPrices)
+static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, const UInt32 *ProbPrices)
 {
   LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
   p->counters[posState] = p->tableSize;
 }
 
-static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, UInt32 *ProbPrices)
+static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, const UInt32 *ProbPrices)
 {
   UInt32 posState;
   for (posState = 0; posState < numPosStates; posState++)
     LenPriceEnc_UpdateTable(p, posState, ProbPrices);
 }
 
-static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, UInt32 *ProbPrices)
+static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, const UInt32 *ProbPrices)
 {
   LenEnc_Encode(&p->p, rc, symbol, posState);
   if (updatePrice)
@@ -803,9 +853,10 @@ static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32
 static void MovePos(CLzmaEnc *p, UInt32 num)
 {
   #ifdef SHOW_STAT
-  ttt += num;
-  printf("\n MovePos %d", num);
+  g_STAT_OFFSET += num;
+  printf("\n MovePos %u", num);
   #endif
+  
   if (num != 0)
   {
     p->additionalOffset += num;
@@ -818,28 +869,32 @@ static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes)
   UInt32 lenRes = 0, numPairs;
   p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
   numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
+  
   #ifdef SHOW_STAT
-  printf("\n i = %d numPairs = %d    ", ttt, numPairs / 2);
-  ttt++;
+  printf("\n i = %u numPairs = %u    ", g_STAT_OFFSET, numPairs / 2);
+  g_STAT_OFFSET++;
   {
     UInt32 i;
     for (i = 0; i < numPairs; i += 2)
-      printf("%2d %6d   | ", p->matches[i], p->matches[i + 1]);
+      printf("%2u %6u   | ", p->matches[i], p->matches[i + 1]);
   }
   #endif
+  
   if (numPairs > 0)
   {
     lenRes = p->matches[numPairs - 2];
     if (lenRes == p->numFastBytes)
     {
-      const Byte *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-      UInt32 distance = p->matches[numPairs - 1] + 1;
       UInt32 numAvail = p->numAvail;
       if (numAvail > LZMA_MATCH_LEN_MAX)
         numAvail = LZMA_MATCH_LEN_MAX;
       {
-        const Byte *pby2 = pby - distance;
-        for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++);
+        const Byte *pbyCur = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
+        const Byte *pby = pbyCur + lenRes;
+        ptrdiff_t dif = (ptrdiff_t)-1 - p->matches[numPairs - 1];
+        const Byte *pbyLim = pbyCur + numAvail;
+        for (; pby != pbyLim && *pby == pby[dif]; pby++);
+        lenRes = (UInt32)(pby - pbyCur);
       }
     }
   }
@@ -924,7 +979,7 @@ static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur)
   return p->optimumCurrentIndex;
 }
 
-#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300)
+#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * (UInt32)0x300)
 
 static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
 {
@@ -968,7 +1023,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
     UInt32 lenTest;
     const Byte *data2;
     reps[i] = p->reps[i];
-    data2 = data - (reps[i] + 1);
+    data2 = data - reps[i] - 1;
     if (data[0] != data2[0] || data[1] != data2[1])
     {
       repLens[i] = 0;
@@ -1112,12 +1167,12 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
   cur = 0;
 
     #ifdef SHOW_STAT2
-    if (position >= 0)
+    /* if (position >= 0) */
     {
       unsigned i;
       printf("\n pos = %4X", position);
       for (i = cur; i <= lenEnd; i++)
-      printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
+      printf("\nprice[%4X] = %u", position - cur + i, p->opt[i].price);
     }
     #endif
 
@@ -1269,7 +1324,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
       /* try Literal + rep0 */
       UInt32 temp;
       UInt32 lenTest2;
-      const Byte *data2 = data - (reps[0] + 1);
+      const Byte *data2 = data - reps[0] - 1;
       UInt32 limit = p->numFastBytes + 1;
       if (limit > numAvailFull)
         limit = numAvailFull;
@@ -1312,7 +1367,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
       UInt32 lenTest;
       UInt32 lenTestTemp;
       UInt32 price;
-      const Byte *data2 = data - (reps[repIndex] + 1);
+      const Byte *data2 = data - reps[repIndex] - 1;
       if (data[0] != data2[0] || data[1] != data2[1])
         continue;
       for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++);
@@ -1342,13 +1397,13 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
         {
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = lenTest2 + p->numFastBytes;
-          UInt32 nextRepMatchPrice;
           if (limit > numAvailFull)
             limit = numAvailFull;
           for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
           lenTest2 -= lenTest + 1;
           if (lenTest2 >= 2)
           {
+            UInt32 nextRepMatchPrice;
             UInt32 state2 = kRepNextStates[state];
             UInt32 posStateNext = (position + lenTest) & p->pbMask;
             UInt32 curAndLenCharPrice =
@@ -1429,16 +1484,16 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
         if (/*_maxMode && */lenTest == matches[offs])
         {
           /* Try Match + Literal + Rep0 */
-          const Byte *data2 = data - (curBack + 1);
+          const Byte *data2 = data - curBack - 1;
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = lenTest2 + p->numFastBytes;
-          UInt32 nextRepMatchPrice;
           if (limit > numAvailFull)
             limit = numAvailFull;
           for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
           lenTest2 -= lenTest + 1;
           if (lenTest2 >= 2)
           {
+            UInt32 nextRepMatchPrice;
             UInt32 state2 = kMatchNextStates[state];
             UInt32 posStateNext = (position + lenTest) & p->pbMask;
             UInt32 curAndLenCharPrice = curAndLenPrice +
@@ -1512,7 +1567,7 @@ static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes)
   for (i = 0; i < LZMA_NUM_REPS; i++)
   {
     UInt32 len;
-    const Byte *data2 = data - (p->reps[i] + 1);
+    const Byte *data2 = data - p->reps[i] - 1;
     if (data[0] != data2[0] || data[1] != data2[1])
       continue;
     for (len = 2; len < numAvail && data[len] == data2[len]; len++);
@@ -1581,7 +1636,7 @@ static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes)
   for (i = 0; i < LZMA_NUM_REPS; i++)
   {
     UInt32 len, limit;
-    const Byte *data2 = data - (p->reps[i] + 1);
+    const Byte *data2 = data - p->reps[i] - 1;
     if (data[0] != data2[0] || data[1] != data2[1])
       continue;
     limit = mainLen - 1;
@@ -1677,6 +1732,7 @@ void LzmaEnc_Construct(CLzmaEnc *p)
 {
   RangeEnc_Construct(&p->rc);
   MatchFinder_Construct(&p->matchFinderBase);
+  
   #ifndef _7ZIP_ST
   MatchFinderMt_Construct(&p->matchFinderMt);
   p->matchFinderMt.MatchFinder = &p->matchFinderBase;
@@ -1693,15 +1749,15 @@ void LzmaEnc_Construct(CLzmaEnc *p)
   #endif
 
   LzmaEnc_InitPriceTables(p->ProbPrices);
-  p->litProbs = 0;
-  p->saveState.litProbs = 0;
+  p->litProbs = NULL;
+  p->saveState.litProbs = NULL;
 }
 
 CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc)
 {
   void *p;
   p = alloc->Alloc(alloc, sizeof(CLzmaEnc));
-  if (p != 0)
+  if (p)
     LzmaEnc_Construct((CLzmaEnc *)p);
   return p;
 }
@@ -1710,8 +1766,8 @@ void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->litProbs);
   alloc->Free(alloc, p->saveState.litProbs);
-  p->litProbs = 0;
-  p->saveState.litProbs = 0;
+  p->litProbs = NULL;
+  p->saveState.litProbs = NULL;
 }
 
 void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
@@ -1719,6 +1775,7 @@ void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
   #ifndef _7ZIP_ST
   MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
   #endif
+  
   MatchFinder_Free(&p->matchFinderBase, allocBig);
   LzmaEnc_FreeLits(p, alloc);
   RangeEnc_Free(&p->rc, alloc);
@@ -1755,7 +1812,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
     ReadMatchDistances(p, &numPairs);
     RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0);
     p->state = kLiteralNextStates[p->state];
-    curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset);
+    curByte = *(p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset);
     LitEnc_Encode(&p->rc, p->litProbs, curByte);
     p->additionalOffset--;
     nowPos32++;
@@ -1772,7 +1829,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
       len = GetOptimum(p, nowPos32, &pos);
 
     #ifdef SHOW_STAT2
-    printf("\n pos = %4X,   len = %d   pos = %d", nowPos32, len, pos);
+    printf("\n pos = %4X,   len = %u   pos = %u", nowPos32, len, pos);
     #endif
 
     posState = nowPos32 & p->pbMask;
@@ -1881,7 +1938,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
             RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize)
           break;
       }
-      else if (processed >= (1 << 15))
+      else if (processed >= (1 << 17))
       {
         p->nowPos64 += nowPos32 - startPos32;
         return CheckErrors(p);
@@ -1897,22 +1954,21 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
 static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
 {
   UInt32 beforeSize = kNumOpts;
-  Bool btMode;
   if (!RangeEnc_Alloc(&p->rc, alloc))
     return SZ_ERROR_MEM;
-  btMode = (p->matchFinderBase.btMode != 0);
+
   #ifndef _7ZIP_ST
-  p->mtMode = (p->multiThread && !p->fastMode && btMode);
+  p->mtMode = (p->multiThread && !p->fastMode && (p->matchFinderBase.btMode != 0));
   #endif
 
   {
     unsigned lclp = p->lc + p->lp;
-    if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp)
+    if (!p->litProbs || !p->saveState.litProbs || p->lclp != lclp)
     {
       LzmaEnc_FreeLits(p, alloc);
-      p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
-      p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
-      if (p->litProbs == 0 || p->saveState.litProbs == 0)
+      p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));
+      p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));
+      if (!p->litProbs || !p->saveState.litProbs)
       {
         LzmaEnc_FreeLits(p, alloc);
         return SZ_ERROR_MEM;
@@ -1921,7 +1977,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
     }
   }
 
-  p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit);
+  p->matchFinderBase.bigHash = (Byte)(p->dictSize > kBigHashDicLimit ? 1 : 0);
 
   if (beforeSize + p->dictSize < keepWindowSize)
     beforeSize = keepWindowSize - p->dictSize;
@@ -1941,6 +1997,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
     p->matchFinderObj = &p->matchFinderBase;
     MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
   }
+  
   return SZ_OK;
 }
 
@@ -1969,9 +2026,10 @@ void LzmaEnc_Init(CLzmaEnc *p)
   }
 
   {
-    UInt32 num = 0x300 << (p->lp + p->lc);
+    UInt32 num = (UInt32)0x300 << (p->lp + p->lc);
+    CLzmaProb *probs = p->litProbs;
     for (i = 0; i < num; i++)
-      p->litProbs[i] = kProbInitValue;
+      probs[i] = kProbInitValue;
   }
 
   {
@@ -2078,10 +2136,11 @@ void LzmaEnc_Finish(CLzmaEncHandle pp)
   if (p->mtMode)
     MatchFinderMt_ReleaseStream(&p->matchFinderMt);
   #else
-  pp = pp;
+  UNUSED_VAR(pp);
   #endif
 }
 
+
 typedef struct
 {
   ISeqOutStream funcTable;
@@ -2111,12 +2170,14 @@ UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
   return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
 }
 
+
 const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
 {
   const CLzmaEnc *p = (CLzmaEnc *)pp;
   return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
 }
 
+
 SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
     Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
 {
@@ -2151,23 +2212,23 @@ SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
   return res;
 }
 
+
 static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
 {
   SRes res = SZ_OK;
 
   #ifndef _7ZIP_ST
   Byte allocaDummy[0x300];
-  int i = 0;
-  for (i = 0; i < 16; i++)
-    allocaDummy[i] = (Byte)i;
+  allocaDummy[0] = 0;
+  allocaDummy[1] = allocaDummy[0];
   #endif
 
   for (;;)
   {
     res = LzmaEnc_CodeOneBlock(p, False, 0, 0);
-    if (res != SZ_OK || p->finished != 0)
+    if (res != SZ_OK || p->finished)
       break;
-    if (progress != 0)
+    if (progress)
     {
       res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
       if (res != SZ_OK)
@@ -2177,10 +2238,19 @@ static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
       }
     }
   }
+  
   LzmaEnc_Finish(p);
+
+  /*
+  if (res == S_OK && !Inline_MatchFinder_IsFinishedOK(&p->matchFinderBase))
+    res = SZ_ERROR_FAIL;
+  }
+  */
+
   return res;
 }
 
+
 SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
     ISzAlloc *alloc, ISzAlloc *allocBig)
 {
@@ -2188,28 +2258,27 @@ SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *i
   return LzmaEnc_Encode2((CLzmaEnc *)pp, progress);
 }
 
+
 SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
 {
   CLzmaEnc *p = (CLzmaEnc *)pp;
-  int i;
+  unsigned i;
   UInt32 dictSize = p->dictSize;
   if (*size < LZMA_PROPS_SIZE)
     return SZ_ERROR_PARAM;
   *size = LZMA_PROPS_SIZE;
   props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc);
 
-  for (i = 11; i <= 30; i++)
+  if (dictSize >= ((UInt32)1 << 22))
   {
-    if (dictSize <= ((UInt32)2 << i))
-    {
-      dictSize = (2 << i);
-      break;
-    }
-    if (dictSize <= ((UInt32)3 << i))
-    {
-      dictSize = (3 << i);
-      break;
-    }
+    UInt32 kDictMask = ((UInt32)1 << 20) - 1;
+    if (dictSize < (UInt32)0xFFFFFFFF - kDictMask)
+      dictSize = (dictSize + kDictMask) & ~kDictMask;
+  }
+  else for (i = 11; i <= 30; i++)
+  {
+    if (dictSize <= ((UInt32)2 << i)) { dictSize = (2 << i); break; }
+    if (dictSize <= ((UInt32)3 << i)) { dictSize = (3 << i); break; }
   }
 
   for (i = 0; i < 4; i++)
@@ -2217,6 +2286,7 @@ SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
   return SZ_OK;
 }
 
+
 SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
     int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
 {
@@ -2225,19 +2295,22 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte
 
   CSeqOutStreamBuf outStream;
 
-  LzmaEnc_SetInputBuf(p, src, srcLen);
-
   outStream.funcTable.Write = MyWrite;
   outStream.data = dest;
   outStream.rem = *destLen;
   outStream.overflow = False;
 
   p->writeEndMark = writeEndMark;
-
   p->rc.outStream = &outStream.funcTable;
+
   res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig);
+  
   if (res == SZ_OK)
+  {
     res = LzmaEnc_Encode2(p, progress);
+    if (res == SZ_OK && p->nowPos64 != srcLen)
+      res = SZ_ERROR_FAIL;
+  }
 
   *destLen -= outStream.rem;
   if (outStream.overflow)
@@ -2245,13 +2318,14 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte
   return res;
 }
 
+
 SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
     const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
     ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
 {
   CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc);
   SRes res;
-  if (p == 0)
+  if (!p)
     return SZ_ERROR_MEM;
 
   res = LzmaEnc_SetProps(p, props);
diff --git a/third_party/lzma_sdk/LzmaEnc.h b/third_party/lzma_sdk/LzmaEnc.h
index 200d60e..cffe220 100644
--- a/third_party/lzma_sdk/LzmaEnc.h
+++ b/third_party/lzma_sdk/LzmaEnc.h
@@ -1,14 +1,12 @@
 /*  LzmaEnc.h -- LZMA Encoder
-2009-02-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __LZMA_ENC_H
 #define __LZMA_ENC_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 #define LZMA_PROPS_SIZE 5
 
@@ -18,6 +16,8 @@ typedef struct _CLzmaEncProps
   UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
                       (1 << 12) <= dictSize <= (1 << 30) for 64-bit version
                        default = (1 << 24) */
+  UInt64 reduceSize; /* estimated size of data that will be compressed. default = 0xFFFFFFFF.
+                        Encoder uses this value to reduce dictionary size */
   int lc;          /* 0 <= lc <= 8, default = 3 */
   int lp;          /* 0 <= lp <= 4, default = 0 */
   int pb;          /* 0 <= pb <= 4, default = 2 */
@@ -73,8 +73,6 @@ SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
     const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
     ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/LzmaLib.c b/third_party/lzma_sdk/LzmaLib.c
index 02a5118..706e9e5 100644
--- a/third_party/lzma_sdk/LzmaLib.c
+++ b/third_party/lzma_sdk/LzmaLib.c
@@ -1,18 +1,12 @@
 /* LzmaLib.c -- LZMA library wrapper
-2008-08-05
-Igor Pavlov
-Public domain */
+2015-06-13 : Igor Pavlov : Public domain */
 
-#include "LzmaEnc.h"
-#include "LzmaDec.h"
 #include "Alloc.h"
+#include "LzmaDec.h"
+#include "LzmaEnc.h"
 #include "LzmaLib.h"
 
-static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); }
-static void SzFree(void *p, void *address) { p = p; MyFree(address); }
-static ISzAlloc g_Alloc = { SzAlloc, SzFree };
-
-MY_STDAPI LzmaCompress(unsigned char *dest, size_t  *destLen, const unsigned char *src, size_t  srcLen,
+MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,
   unsigned char *outProps, size_t *outPropsSize,
   int level, /* 0 <= level <= 9, default = 5 */
   unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */
@@ -38,7 +32,7 @@ MY_STDAPI LzmaCompress(unsigned char *dest, size_t  *destLen, const unsigned cha
 }
 
 
-MY_STDAPI LzmaUncompress(unsigned char *dest, size_t  *destLen, const unsigned char *src, size_t  *srcLen,
+MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen,
   const unsigned char *props, size_t propsSize)
 {
   ELzmaStatus status;
diff --git a/third_party/lzma_sdk/LzmaLib.h b/third_party/lzma_sdk/LzmaLib.h
index 76c99ce7..88fa87d 100644
--- a/third_party/lzma_sdk/LzmaLib.h
+++ b/third_party/lzma_sdk/LzmaLib.h
@@ -1,14 +1,12 @@
 /* LzmaLib.h -- LZMA library interface
-2009-04-07 : Igor Pavlov : Public domain */
+2013-01-18 : Igor Pavlov : Public domain */
 
 #ifndef __LZMA_LIB_H
 #define __LZMA_LIB_H
 
-#include "Types.h"
+#include "7zTypes.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+EXTERN_C_BEGIN
 
 #define MY_STDAPI int MY_STD_CALL
 
@@ -128,8 +126,6 @@ Returns:
 MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, SizeT *srcLen,
   const unsigned char *props, size_t propsSize);
 
-#ifdef __cplusplus
-}
-#endif
+EXTERN_C_END
 
 #endif
diff --git a/third_party/lzma_sdk/OWNERS b/third_party/lzma_sdk/OWNERS
new file mode 100644
index 0000000..76f3885
--- /dev/null
+++ b/third_party/lzma_sdk/OWNERS
@@ -0,0 +1,2 @@
+grt@chromium.org
+waffles@chromium.org
diff --git a/third_party/lzma_sdk/Precomp.h b/third_party/lzma_sdk/Precomp.h
new file mode 100644
index 0000000..e8ff8b4
--- /dev/null
+++ b/third_party/lzma_sdk/Precomp.h
@@ -0,0 +1,10 @@
+/* Precomp.h -- StdAfx
+2013-11-12 : Igor Pavlov : Public domain */
+
+#ifndef __7Z_PRECOMP_H
+#define __7Z_PRECOMP_H
+
+#include "Compiler.h"
+/* #include "7zTypes.h" */
+
+#endif
diff --git a/third_party/lzma_sdk/README.chromium b/third_party/lzma_sdk/README.chromium
index 9adc194..4b2106b 100644
--- a/third_party/lzma_sdk/README.chromium
+++ b/third_party/lzma_sdk/README.chromium
@@ -1,25 +1,18 @@
 Name: LZMA SDK
 Short Name: lzma
 URL: http://www.7-zip.org/sdk.html
-Version: 9.20
+Version: 15.14
+Date: 2015-12-31
+License: Public Domain
 Security Critical: yes
-License: Public domain
 
 Description:
-This contains a part of LZMA SDK 9.20.
+This contains a part of LZMA SDK 15.14.
 
+Local Modifications:
 Only the C code required to open 7z archive files and uncompress LZMA
-compression has been included. The project files have been rewritten to use
-proper file paths and generate a static lib.
+compression has been included.
 
-The patch in chromium.patch was applied to CpuArch.c to fix compile error on
-32bit Linux (when compiled with -fPIC).
-
-2013-06-14: The patch was updated to fix register corruption that can occur on
-64-bit platforms.
-
-2013-07-17: The patch was updated to fix register clobbering that occurred on
-Mac builds (but in principle can occur anywhere).
-
-An #include <stdlib.h> needs to be added to CpuArch.h to avoid a warning on
-Win32.
+The patch in chromium.patch was applied to CpuArch.c to fix register corruption
+that can occur on 64-bit platforms and register clobbering that occurred on Mac
+builds (but in principle can occur anywhere).
diff --git a/third_party/lzma_sdk/chromium.patch b/third_party/lzma_sdk/chromium.patch
index 7cd1ea8..ec15101 100644
--- a/third_party/lzma_sdk/chromium.patch
+++ b/third_party/lzma_sdk/chromium.patch
@@ -1,357 +1,27 @@
-1,168c1,187
-< /* CpuArch.c -- CPU specific code
-< 2010-10-26: Igor Pavlov : Public domain */
-< 
-< #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) && !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));
-<   #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
-< 
-< 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__ (
-<     "cpuid"
-<     : "=a" (*a) ,
-<       "=b" (*b) ,
-<       "=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
-< }
-< 
-< 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 UInt32 kVendors[][3] =
-< {
-<   { 0x756E6547, 0x49656E69, 0x6C65746E},
-<   { 0x68747541, 0x69746E65, 0x444D4163},
-<   { 0x746E6543, 0x48727561, 0x736C7561}
-< };
-< 
-< 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;
-< }
-< 
-< Bool CPU_Is_InOrder()
-< {
-<   Cx86cpuid p;
-<   int firm;
-<   UInt32 family, model;
-<   if (!x86cpuid_CheckAndRead(&p))
-<     return True;
-<   family = x86cpuid_GetFamily(&p);
-<   model = x86cpuid_GetModel(&p);
-<   firm = x86cpuid_GetFirm(&p);
-<   switch (firm)
-<   {
-<     case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && model == 0x100C));
-<     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;
-< }
-< 
-< #if !defined(MY_CPU_AMD64) && defined(_WIN32)
-< static Bool CPU_Sys_Is_SSE_Supported()
-< {
-<   OSVERSIONINFO vi;
-<   vi.dwOSVersionInfoSize = sizeof(vi);
-<   if (!GetVersionEx(&vi))
-<     return False;
-<   return (vi.dwMajorVersion >= 5);
-< }
-< #define CHECK_SYS_SSE_SUPPORT if (!CPU_Sys_Is_SSE_Supported()) return False;
-< #else
-< #define CHECK_SYS_SSE_SUPPORT
-< #endif
-< 
-< Bool CPU_Is_Aes_Supported()
-< {
-<   Cx86cpuid p;
-<   CHECK_SYS_SSE_SUPPORT
-<   if (!x86cpuid_CheckAndRead(&p))
-<     return False;
-<   return (p.c >> 25) & 1;
-< }
-< 
-< #endif
----
-> /* CpuArch.c -- CPU specific code
-> 2010-10-26: Igor Pavlov : Public domain */
-> 
-> #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) && !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
-> 
-> 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
-> 
->   #if defined(MY_CPU_AMD64)
-> 
->   __asm__ __volatile__ (
->     "mov %%rbx, %%rdi\n"
->     "cpuid\n"
->     "xchg %%rdi, %%rbx\n"
->     : "=a" (*a) ,
->       "=D" (*b) ,
->       "=c" (*c) ,
->       "=d" (*d)
->     : "0" (function)) ;
-> 
->   #else
-> 
->   __asm__ __volatile__ (
->     "mov %%ebx, %%edi\n"
->     "cpuid\n"
->     "xchg %%edi, %%ebx\n"
->     : "=a" (*a) ,
->       "=D" (*b) ,
->       "=c" (*c) ,
->       "=d" (*d)
->     : "0" (function)) ;
-> 
->   #endif
-> 
->   #endif
->   
->   #else
-> 
->   int CPUInfo[4];
->   __cpuid(CPUInfo, function);
->   *a = CPUInfo[0];
->   *b = CPUInfo[1];
->   *c = CPUInfo[2];
->   *d = CPUInfo[3];
-> 
->   #endif
-> }
-> 
-> 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 UInt32 kVendors[][3] =
-> {
->   { 0x756E6547, 0x49656E69, 0x6C65746E},
->   { 0x68747541, 0x69746E65, 0x444D4163},
->   { 0x746E6543, 0x48727561, 0x736C7561}
-> };
-> 
-> 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;
-> }
-> 
-> Bool CPU_Is_InOrder()
-> {
->   Cx86cpuid p;
->   int firm;
->   UInt32 family, model;
->   if (!x86cpuid_CheckAndRead(&p))
->     return True;
->   family = x86cpuid_GetFamily(&p);
->   model = x86cpuid_GetModel(&p);
->   firm = x86cpuid_GetFirm(&p);
->   switch (firm)
->   {
->     case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && model == 0x100C));
->     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;
-> }
-> 
-> #if !defined(MY_CPU_AMD64) && defined(_WIN32)
-> static Bool CPU_Sys_Is_SSE_Supported()
-> {
->   OSVERSIONINFO vi;
->   vi.dwOSVersionInfoSize = sizeof(vi);
->   if (!GetVersionEx(&vi))
->     return False;
->   return (vi.dwMajorVersion >= 5);
-> }
-> #define CHECK_SYS_SSE_SUPPORT if (!CPU_Sys_Is_SSE_Supported()) return False;
-> #else
-> #define CHECK_SYS_SSE_SUPPORT
-> #endif
-> 
-> Bool CPU_Is_Aes_Supported()
-> {
->   Cx86cpuid p;
->   CHECK_SYS_SSE_SUPPORT
->   if (!x86cpuid_CheckAndRead(&p))
->     return False;
->   return (p.c >> 25) & 1;
-> }
-> 
-> #endif
+--- a\CpuArch.c	2015-03-25 08:17:41.042711000 -0400
++++ lzma_sdk\CpuArch.c	2016-02-12 16:32:45.484718900 -0500
+@@ -45,7 +45,8 @@
+     "push %%EDX\n\t"
+     "popf\n\t"
+     "andl %%EAX, %0\n\t":
+-    "=c" (flag) : "c" (flag));
++    "=c" (flag) : "c" (flag):
++    "%eax", "%edx" );
+   #endif
+   return flag;
+ }
+@@ -79,7 +80,13 @@
+   #else
+ 
+   __asm__ __volatile__ (
+-  #if defined(MY_CPU_X86) && defined(__PIC__)
++  #if defined(MY_CPU_AMD64)
++    "mov %%rbx, %%rdi\n"
++    "cpuid\n"
++    "xchg %%rdi, %%rbx\n"
++    : "=a" (*a) ,
++      "=D" (*b) ,
++  #elif defined(MY_CPU_X86) && defined(__PIC__)
+     "mov %%ebx, %%edi;"
+     "cpuid;"
+     "xchgl %%ebx, %%edi;"
diff --git a/third_party/lzma_sdk/lzma_sdk.gyp b/third_party/lzma_sdk/lzma_sdk.gyp
index a1167d5..a3d801b 100644
--- a/third_party/lzma_sdk/lzma_sdk.gyp
+++ b/third_party/lzma_sdk/lzma_sdk.gyp
@@ -8,6 +8,7 @@
       '7z.h',
       '7zAlloc.c',
       '7zAlloc.h',
+      '7zArcIn.c',
       '7zBuf.c',
       '7zBuf.h',
       '7zCrc.c',
@@ -16,8 +17,8 @@
       '7zDec.c',
       '7zFile.c',
       '7zFile.h',
-      '7zIn.c',
       '7zStream.c',
+      '7zTypes.h',
       'Alloc.c',
       'Alloc.h',
       'Bcj2.c',
@@ -25,8 +26,11 @@
       'Bra.c',
       'Bra.h',
       'Bra86.c',
+      'Compiler.h',
       'CpuArch.c',
       'CpuArch.h',
+      'Delta.c',
+      'Delta.h',
       'LzFind.c',
       'LzFind.h',
       'LzHash.h',
@@ -38,7 +42,7 @@
       'LzmaDec.h',
       'LzmaLib.c',
       'LzmaLib.h',
-      'Types.h',
+      'Precomp.h',
     ],
   },
   'targets': [
@@ -47,6 +51,7 @@
       'type': 'static_library',
       'defines': [
         '_7ZIP_ST',
+        '_7Z_NO_METHODS_FILTERS',
         '_LZMA_PROB32',
       ],
       'variables': {