Update to 7-Zip 16.03

CPP/7zip/Archive/Tar/TarHandler.cpp

@@ -72,6 +72,13 @@ STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
       break;
     }
 
+    case kpidWarningFlags:
+    {
+      if (_warning)
+        prop = kpv_ErrorFlags_HeadersError;
+      break;
+    }
+
     case kpidCodePage:
     {
       const char *name = NULL;
@@ -98,7 +105,13 @@ STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
 HRESULT CHandler::ReadItem2(ISequentialInStream *stream, bool &filled, CItemEx &item)
 {
   item.HeaderPos = _phySize;
-  RINOK(ReadItem(stream, filled, item, _error));
+  EErrorType error;
+  HRESULT res = ReadItem(stream, filled, item, error);
+  if (error == k_ErrorType_Warning)
+    _warning = true;
+  else if (error != k_ErrorType_OK)
+    _error = error;
+  RINOK(res);
   if (filled)
   {
     /*
@@ -233,6 +246,7 @@ STDMETHODIMP CHandler::OpenSeq(ISequentialInStream *stream)
 STDMETHODIMP CHandler::Close()
 {
   _isArc = false;
+  _warning = false;
   _error = k_ErrorType_OK;
 
   _phySizeDefined = false;

CPP/7zip/Archive/Tar/TarHandler.h

@@ -37,6 +37,7 @@ private:
   UInt64 _headersSize;
   bool _phySizeDefined;
   EErrorType _error;
+  bool _warning;
   bool _isArc;
 
   // bool _isSparse;

CPP/7zip/Archive/Tar/TarHandlerOut.cpp

@@ -75,7 +75,7 @@ STDMETHODIMP CHandler::UpdateItems(ISequentialOutStream *outStream, UInt32 numIt
 {
   COM_TRY_BEGIN
 
-  if ((_stream && (_error != k_ErrorType_OK /* || _isSparse */)) || _seqStream)
+  if ((_stream && (_error != k_ErrorType_OK || _warning /* || _isSparse */)) || _seqStream)
     return E_NOTIMPL;
   CObjectVector<CUpdateItem> updateItems;
   UINT codePage = (_forceCodePage ? _specifiedCodePage : _openCodePage);

CPP/7zip/Archive/Tar/TarIn.cpp

@@ -328,13 +328,63 @@ static HRESULT GetNextItemReal(ISequentialInStream *stream, bool &filled, CItemE
   return S_OK;
 }
 
+
+static HRESULT ReadDataToString(ISequentialInStream *stream, CItemEx &item, AString &s, EErrorType &error)
+{
+  const unsigned packSize = (unsigned)item.GetPackSizeAligned();
+  size_t processedSize = packSize;
+  HRESULT res = ReadStream(stream, s.GetBuf(packSize), &processedSize);
+  item.HeaderSize += (unsigned)processedSize;
+  s.ReleaseBuf_CalcLen((unsigned)item.PackSize);
+  RINOK(res);
+  if (processedSize != packSize)
+    error = k_ErrorType_UnexpectedEnd;
+  return S_OK;
+}
+
+static bool ParsePaxLongName(const AString &src, AString &dest)
+{
+  dest.Empty();
+  for (unsigned pos = 0;;)
+  {
+    if (pos >= src.Len())
+      return false;
+    const char *start = src.Ptr(pos);
+    const char *end;
+    const UInt32 lineLen = ConvertStringToUInt32(start, &end);
+    if (end == start)
+      return false;
+    if (*end != ' ')
+      return false;
+    if (lineLen > src.Len() - pos)
+      return false;
+    unsigned offset = (unsigned)(end - start) + 1;
+    if (lineLen < offset)
+      return false;
+    if (IsString1PrefixedByString2(src.Ptr(pos + offset), "path="))
+    {
+      offset += 5; // "path="
+      dest = src.Mid(pos + offset, lineLen - offset);
+      if (dest.IsEmpty())
+        return false;
+      if (dest.Back() != '\n')
+        return false;
+      dest.DeleteBack();
+      return true;
+    }
+    pos += lineLen;
+  }
+}
+
 HRESULT ReadItem(ISequentialInStream *stream, bool &filled, CItemEx &item, EErrorType &error)
 {
   item.HeaderSize = 0;
+
   bool flagL = false;
   bool flagK = false;
   AString nameL;
   AString nameK;
+  AString pax;
   
   for (;;)
   {
@@ -363,18 +413,11 @@ HRESULT ReadItem(ISequentialInStream *stream, bool &filled, CItemEx &item, EErro
         return S_OK;
       if (item.PackSize > (1 << 14))
         return S_OK;
-      unsigned packSize = (unsigned)item.GetPackSizeAligned();
-      char *buf = name->GetBuf(packSize);
-      size_t processedSize = packSize;
-      HRESULT res = ReadStream(stream, buf, &processedSize);
-      item.HeaderSize += (unsigned)processedSize;
-      name->ReleaseBuf_CalcLen((unsigned)item.PackSize);
-      RINOK(res);
-      if (processedSize != packSize)
-      {
-        error = k_ErrorType_UnexpectedEnd;
+
+      RINOK(ReadDataToString(stream, item, *name, error));
+      if (error != k_ErrorType_OK)
         return S_OK;
-      }
+
       continue;
     }
 
@@ -385,6 +428,14 @@ HRESULT ReadItem(ISequentialInStream *stream, bool &filled, CItemEx &item, EErro
       case 'X':
       {
         // pax Extended Header
+        if (item.Name.IsPrefixedBy("PaxHeader/"))
+        {
+          RINOK(ReadDataToString(stream, item, pax, error));
+          if (error != k_ErrorType_OK)
+            return S_OK;
+          continue;
+        }
+       
         break;
       }
       case NFileHeader::NLinkFlag::kDumpDir:
@@ -415,6 +466,16 @@ HRESULT ReadItem(ISequentialInStream *stream, bool &filled, CItemEx &item, EErro
     }
 
     error = k_ErrorType_OK;
+
+    if (!pax.IsEmpty())
+    {
+      AString name;
+      if (ParsePaxLongName(pax, name))
+        item.Name = name;
+      else
+        error = k_ErrorType_Warning;
+    }
+
     return S_OK;
   }
 }

CPP/7zip/Archive/Tar/TarIn.h

@@ -15,6 +15,7 @@ enum EErrorType
   k_ErrorType_OK,
   k_ErrorType_Corrupted,
   k_ErrorType_UnexpectedEnd,
+  k_ErrorType_Warning
 };
 
 HRESULT ReadItem(ISequentialInStream *stream, bool &filled, CItemEx &itemInfo, EErrorType &error);