Update the 7z installer stub source to 18.05.

Tag #1022

1 files changed, 591 insertions, 0 deletions

diff --git a/other-licenses/7zstub/src/C/7zDec.c b/other-licenses/7zstub/src/C/7zDec.c
new file mode 100644
index 000000000..9c986950c
--- /dev/null
+++ b/other-licenses/7zstub/src/C/7zDec.c
@@ -0,0 +1,591 @@
+/* 7zDec.c -- Decoding from 7z folder

+2017-04-03 : 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

+#include "Ppmd7.h"

+#endif

+

+#define k_Copy 0

+#define k_Delta 3

+#define k_LZMA2 0x21

+#define k_LZMA  0x30101

+#define k_BCJ   0x3030103

+#define k_BCJ2  0x303011B

+#define k_PPC   0x3030205

+#define k_IA64  0x3030401

+#define k_ARM   0x3030501

+#define k_ARMT  0x3030701

+#define k_SPARC 0x3030805

+

+

+#ifdef _7ZIP_PPMD_SUPPPORT

+

+#define k_PPMD 0x30401

+

+typedef struct

+{

+  IByteIn vt;

+  const Byte *cur;

+  const Byte *end;

+  const Byte *begin;

+  UInt64 processed;

+  Bool extra;

+  SRes res;

+  const ILookInStream *inStream;

+} CByteInToLook;

+

+static Byte ReadByte(const IByteIn *pp)

+{

+  CByteInToLook *p = CONTAINER_FROM_VTBL(pp, CByteInToLook, vt);

+  if (p->cur != p->end)

+    return *p->cur++;

+  if (p->res == SZ_OK)

+  {

+    size_t size = p->cur - p->begin;

+    p->processed += size;

+    p->res = ILookInStream_Skip(p->inStream, size);

+    size = (1 << 25);

+    p->res = ILookInStream_Look(p->inStream, (const void **)&p->begin, &size);

+    p->cur = p->begin;

+    p->end = p->begin + size;

+    if (size != 0)

+      return *p->cur++;;

+  }

+  p->extra = True;

+  return 0;

+}

+

+static SRes SzDecodePpmd(const Byte *props, unsigned propsSize, UInt64 inSize, const ILookInStream *inStream,

+    Byte *outBuffer, SizeT outSize, ISzAllocPtr allocMain)

+{

+  CPpmd7 ppmd;

+  CByteInToLook s;

+  SRes res = SZ_OK;

+

+  s.vt.Read = ReadByte;

+  s.inStream = inStream;

+  s.begin = s.end = s.cur = NULL;

+  s.extra = False;

+  s.res = SZ_OK;

+  s.processed = 0;

+

+  if (propsSize != 5)

+    return SZ_ERROR_UNSUPPORTED;

+

+  {

+    unsigned order = props[0];

+    UInt32 memSize = GetUi32(props + 1);

+    if (order < PPMD7_MIN_ORDER ||

+        order > PPMD7_MAX_ORDER ||

+        memSize < PPMD7_MIN_MEM_SIZE ||

+        memSize > PPMD7_MAX_MEM_SIZE)

+      return SZ_ERROR_UNSUPPORTED;

+    Ppmd7_Construct(&ppmd);

+    if (!Ppmd7_Alloc(&ppmd, memSize, allocMain))

+      return SZ_ERROR_MEM;

+    Ppmd7_Init(&ppmd, order);

+  }

+  {

+    CPpmd7z_RangeDec rc;

+    Ppmd7z_RangeDec_CreateVTable(&rc);

+    rc.Stream = &s.vt;

+    if (!Ppmd7z_RangeDec_Init(&rc))

+      res = SZ_ERROR_DATA;

+    else if (s.extra)

+      res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);

+    else

+    {

+      SizeT i;

+      for (i = 0; i < outSize; i++)

+      {

+        int sym = Ppmd7_DecodeSymbol(&ppmd, &rc.vt);

+        if (s.extra || sym < 0)

+          break;

+        outBuffer[i] = (Byte)sym;

+      }

+      if (i != outSize)

+        res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);

+      else if (s.processed + (s.cur - s.begin) != inSize || !Ppmd7z_RangeDec_IsFinishedOK(&rc))

+        res = SZ_ERROR_DATA;

+    }

+  }

+  Ppmd7_Free(&ppmd, allocMain);

+  return res;

+}

+

+#endif

+

+

+static SRes SzDecodeLzma(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream,

+    Byte *outBuffer, SizeT outSize, ISzAllocPtr allocMain)

+{

+  CLzmaDec state;

+  SRes res = SZ_OK;

+

+  LzmaDec_Construct(&state);

+  RINOK(LzmaDec_AllocateProbs(&state, props, propsSize, allocMain));

+  state.dic = outBuffer;

+  state.dicBufSize = outSize;

+  LzmaDec_Init(&state);

+

+  for (;;)

+  {

+    const void *inBuf = NULL;

+    size_t lookahead = (1 << 18);

+    if (lookahead > inSize)

+      lookahead = (size_t)inSize;

+    res = ILookInStream_Look(inStream, &inBuf, &lookahead);

+    if (res != SZ_OK)

+      break;

+

+    {

+      SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos;

+      ELzmaStatus status;

+      res = LzmaDec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);

+      lookahead -= inProcessed;

+      inSize -= inProcessed;

+      if (res != SZ_OK)

+        break;

+

+      if (status == LZMA_STATUS_FINISHED_WITH_MARK)

+      {

+        if (outSize != state.dicPos || inSize != 0)

+          res = SZ_ERROR_DATA;

+        break;

+      }

+

+      if (outSize == state.dicPos && inSize == 0 && status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)

+        break;

+

+      if (inProcessed == 0 && dicPos == state.dicPos)

+      {

+        res = SZ_ERROR_DATA;

+        break;

+      }

+

+      res = ILookInStream_Skip(inStream, inProcessed);

+      if (res != SZ_OK)

+        break;

+    }

+  }

+

+  LzmaDec_FreeProbs(&state, allocMain);

+  return res;

+}

+

+

+#ifndef _7Z_NO_METHOD_LZMA2

+

+static SRes SzDecodeLzma2(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream,

+    Byte *outBuffer, SizeT outSize, ISzAllocPtr allocMain)

+{

+  CLzma2Dec state;

+  SRes res = SZ_OK;

+

+  Lzma2Dec_Construct(&state);

+  if (propsSize != 1)

+    return SZ_ERROR_DATA;

+  RINOK(Lzma2Dec_AllocateProbs(&state, props[0], allocMain));

+  state.decoder.dic = outBuffer;

+  state.decoder.dicBufSize = outSize;

+  Lzma2Dec_Init(&state);

+

+  for (;;)

+  {

+    const void *inBuf = NULL;

+    size_t lookahead = (1 << 18);

+    if (lookahead > inSize)

+      lookahead = (size_t)inSize;

+    res = ILookInStream_Look(inStream, &inBuf, &lookahead);

+    if (res != SZ_OK)

+      break;

+

+    {

+      SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos;

+      ELzmaStatus status;

+      res = Lzma2Dec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);

+      lookahead -= inProcessed;

+      inSize -= inProcessed;

+      if (res != SZ_OK)

+        break;

+

+      if (status == LZMA_STATUS_FINISHED_WITH_MARK)

+      {

+        if (outSize != state.decoder.dicPos || inSize != 0)

+          res = SZ_ERROR_DATA;

+        break;

+      }

+

+      if (inProcessed == 0 && dicPos == state.decoder.dicPos)

+      {

+        res = SZ_ERROR_DATA;

+        break;

+      }

+

+      res = ILookInStream_Skip(inStream, inProcessed);

+      if (res != SZ_OK)

+        break;

+    }

+  }

+

+  Lzma2Dec_FreeProbs(&state, allocMain);

+  return res;

+}

+

+#endif

+

+

+static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer)

+{

+  while (inSize > 0)

+  {

+    const void *inBuf;

+    size_t curSize = (1 << 18);

+    if (curSize > inSize)

+      curSize = (size_t)inSize;

+    RINOK(ILookInStream_Look(inStream, &inBuf, &curSize));

+    if (curSize == 0)

+      return SZ_ERROR_INPUT_EOF;

+    memcpy(outBuffer, inBuf, curSize);

+    outBuffer += curSize;

+    inSize -= curSize;

+    RINOK(ILookInStream_Skip(inStream, curSize));

+  }

+  return SZ_OK;

+}

+

+static Bool IS_MAIN_METHOD(UInt32 m)

+{

+  switch (m)

+  {

+    case k_Copy:

+    case k_LZMA:

+    #ifndef _7Z_NO_METHOD_LZMA2

+    case k_LZMA2:

+    #endif

+    #ifdef _7ZIP_PPMD_SUPPPORT

+    case k_PPMD:

+    #endif

+      return True;

+  }

+  return False;

+}

+

+static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)

+{

+  return

+      c->NumStreams == 1

+      /* && c->MethodID <= (UInt32)0xFFFFFFFF */

+      && IS_MAIN_METHOD((UInt32)c->MethodID);

+}

+

+#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumStreams == 4)

+

+static SRes CheckSupportedFolder(const CSzFolder *f)

+{

+  if (f->NumCoders < 1 || f->NumCoders > 4)

+    return SZ_ERROR_UNSUPPORTED;

+  if (!IS_SUPPORTED_CODER(&f->Coders[0]))

+    return SZ_ERROR_UNSUPPORTED;

+  if (f->NumCoders == 1)

+  {

+    if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBonds != 0)

+      return SZ_ERROR_UNSUPPORTED;

+    return SZ_OK;

+  }

+  

+  

+  #ifndef _7Z_NO_METHODS_FILTERS

+

+  if (f->NumCoders == 2)

+  {

+    const CSzCoderInfo *c = &f->Coders[1];

+    if (

+        /* c->MethodID > (UInt32)0xFFFFFFFF || */

+        c->NumStreams != 1

+        || f->NumPackStreams != 1

+        || f->PackStreams[0] != 0

+        || f->NumBonds != 1

+        || f->Bonds[0].InIndex != 1

+        || f->Bonds[0].OutIndex != 0)

+      return SZ_ERROR_UNSUPPORTED;

+    switch ((UInt32)c->MethodID)

+    {

+      case k_Delta:

+      case k_BCJ:

+      case k_PPC:

+      case k_IA64:

+      case k_SPARC:

+      case k_ARM:

+      case k_ARMT:

+        break;

+      default:

+        return SZ_ERROR_UNSUPPORTED;

+    }

+    return SZ_OK;

+  }

+

+  #endif

+

+  

+  if (f->NumCoders == 4)

+  {

+    if (!IS_SUPPORTED_CODER(&f->Coders[1])

+        || !IS_SUPPORTED_CODER(&f->Coders[2])

+        || !IS_BCJ2(&f->Coders[3]))

+      return SZ_ERROR_UNSUPPORTED;

+    if (f->NumPackStreams != 4

+        || f->PackStreams[0] != 2

+        || f->PackStreams[1] != 6

+        || f->PackStreams[2] != 1

+        || f->PackStreams[3] != 0

+        || f->NumBonds != 3

+        || f->Bonds[0].InIndex != 5 || f->Bonds[0].OutIndex != 0

+        || f->Bonds[1].InIndex != 4 || f->Bonds[1].OutIndex != 1

+        || f->Bonds[2].InIndex != 3 || f->Bonds[2].OutIndex != 2)

+      return SZ_ERROR_UNSUPPORTED;

+    return SZ_OK;

+  }

+  

+  return SZ_ERROR_UNSUPPORTED;

+}

+

+#define CASE_BRA_CONV(isa) case k_ ## isa: isa ## _Convert(outBuffer, outSize, 0, 0); break;

+

+static SRes SzFolder_Decode2(const CSzFolder *folder,

+    const Byte *propsData,

+    const UInt64 *unpackSizes,

+    const UInt64 *packPositions,

+    ILookInStream *inStream, UInt64 startPos,

+    Byte *outBuffer, SizeT outSize, ISzAllocPtr allocMain,

+    Byte *tempBuf[])

+{

+  UInt32 ci;

+  SizeT tempSizes[3] = { 0, 0, 0};

+  SizeT tempSize3 = 0;

+  Byte *tempBuf3 = 0;

+

+  RINOK(CheckSupportedFolder(folder));

+

+  for (ci = 0; ci < folder->NumCoders; ci++)

+  {

+    const CSzCoderInfo *coder = &folder->Coders[ci];

+

+    if (IS_MAIN_METHOD((UInt32)coder->MethodID))

+    {

+      UInt32 si = 0;

+      UInt64 offset;

+      UInt64 inSize;

+      Byte *outBufCur = outBuffer;

+      SizeT outSizeCur = outSize;

+      if (folder->NumCoders == 4)

+      {

+        UInt32 indices[] = { 3, 2, 0 };

+        UInt64 unpackSize = unpackSizes[ci];

+        si = indices[ci];

+        if (ci < 2)

+        {

+          Byte *temp;

+          outSizeCur = (SizeT)unpackSize;

+          if (outSizeCur != unpackSize)

+            return SZ_ERROR_MEM;

+          temp = (Byte *)ISzAlloc_Alloc(allocMain, outSizeCur);

+          if (!temp && outSizeCur != 0)

+            return SZ_ERROR_MEM;

+          outBufCur = tempBuf[1 - ci] = temp;

+          tempSizes[1 - ci] = outSizeCur;

+        }

+        else if (ci == 2)

+        {

+          if (unpackSize > outSize) /* check it */

+            return SZ_ERROR_PARAM;

+          tempBuf3 = outBufCur = outBuffer + (outSize - (size_t)unpackSize);

+          tempSize3 = outSizeCur = (SizeT)unpackSize;

+        }

+        else

+          return SZ_ERROR_UNSUPPORTED;

+      }

+      offset = packPositions[si];

+      inSize = packPositions[(size_t)si + 1] - offset;

+      RINOK(LookInStream_SeekTo(inStream, startPos + offset));

+

+      if (coder->MethodID == k_Copy)

+      {

+        if (inSize != outSizeCur) /* check it */

+          return SZ_ERROR_DATA;

+        RINOK(SzDecodeCopy(inSize, inStream, outBufCur));

+      }

+      else if (coder->MethodID == k_LZMA)

+      {

+        RINOK(SzDecodeLzma(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));

+      }

+      #ifndef _7Z_NO_METHOD_LZMA2

+      else if (coder->MethodID == k_LZMA2)

+      {

+        RINOK(SzDecodeLzma2(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));

+      }

+      #endif

+      #ifdef _7ZIP_PPMD_SUPPPORT

+      else if (coder->MethodID == k_PPMD)

+      {

+        RINOK(SzDecodePpmd(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));

+      }

+      #endif

+      else

+        return SZ_ERROR_UNSUPPORTED;

+    }

+    else if (coder->MethodID == k_BCJ2)

+    {

+      UInt64 offset = packPositions[1];

+      UInt64 s3Size = packPositions[2] - offset;

+      

+      if (ci != 3)

+        return SZ_ERROR_UNSUPPORTED;

+      

+      tempSizes[2] = (SizeT)s3Size;

+      if (tempSizes[2] != s3Size)

+        return SZ_ERROR_MEM;

+      tempBuf[2] = (Byte *)ISzAlloc_Alloc(allocMain, tempSizes[2]);

+      if (!tempBuf[2] && tempSizes[2] != 0)

+        return SZ_ERROR_MEM;

+      

+      RINOK(LookInStream_SeekTo(inStream, startPos + offset));

+      RINOK(SzDecodeCopy(s3Size, inStream, tempBuf[2]));

+

+      if ((tempSizes[0] & 3) != 0 ||

+          (tempSizes[1] & 3) != 0 ||

+          tempSize3 + tempSizes[0] + tempSizes[1] != outSize)

+        return SZ_ERROR_DATA;

+

+      {

+        CBcj2Dec p;

+        

+        p.bufs[0] = tempBuf3;   p.lims[0] = tempBuf3 + tempSize3;

+        p.bufs[1] = tempBuf[0]; p.lims[1] = tempBuf[0] + tempSizes[0];

+        p.bufs[2] = tempBuf[1]; p.lims[2] = tempBuf[1] + tempSizes[1];

+        p.bufs[3] = tempBuf[2]; p.lims[3] = tempBuf[2] + tempSizes[2];

+        

+        p.dest = outBuffer;

+        p.destLim = outBuffer + outSize;

+        

+        Bcj2Dec_Init(&p);

+        RINOK(Bcj2Dec_Decode(&p));

+

+        {

+          unsigned i;

+          for (i = 0; i < 4; i++)

+            if (p.bufs[i] != p.lims[i])

+              return SZ_ERROR_DATA;

+          

+          if (!Bcj2Dec_IsFinished(&p))

+            return SZ_ERROR_DATA;

+

+          if (p.dest != p.destLim

+             || p.state != BCJ2_STREAM_MAIN)

+            return SZ_ERROR_DATA;

+        }

+      }

+    }

+    #ifndef _7Z_NO_METHODS_FILTERS

+    else if (ci == 1)

+    {

+      if (coder->MethodID == k_Delta)

+      {

+        if (coder->PropsSize != 1)

+          return SZ_ERROR_UNSUPPORTED;

+        {

+          Byte state[DELTA_STATE_SIZE];

+          Delta_Init(state);

+          Delta_Decode(state, (unsigned)(propsData[coder->PropsOffset]) + 1, outBuffer, outSize);

+        }

+      }

+      else

+      {

+        if (coder->PropsSize != 0)

+          return SZ_ERROR_UNSUPPORTED;

+        switch (coder->MethodID)

+        {

+          case k_BCJ:

+          {

+            UInt32 state;

+            x86_Convert_Init(state);

+            x86_Convert(outBuffer, outSize, 0, &state, 0);

+            break;

+          }

+          CASE_BRA_CONV(PPC)

+          CASE_BRA_CONV(IA64)

+          CASE_BRA_CONV(SPARC)

+          CASE_BRA_CONV(ARM)

+          CASE_BRA_CONV(ARMT)

+          default:

+            return SZ_ERROR_UNSUPPORTED;

+        }

+      }

+    }

+    #endif

+    else

+      return SZ_ERROR_UNSUPPORTED;

+  }

+

+  return SZ_OK;

+}

+

+

+SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex,

+    ILookInStream *inStream, UInt64 startPos,

+    Byte *outBuffer, size_t outSize,

+    ISzAllocPtr allocMain)

+{

+  SRes res;

+  CSzFolder folder;

+  CSzData sd;

+  

+  const Byte *data = p->CodersData + p->FoCodersOffsets[folderIndex];

+  sd.Data = data;

+  sd.Size = p->FoCodersOffsets[(size_t)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++)

+      ISzAlloc_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;

+  }

+}