1 files changed, 181 insertions, 0 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Archive/Nsis/NsisIn.h b/src/libs/7zip/unix/CPP/7zip/Archive/Nsis/NsisIn.h
new file mode 100644
index 000000000..87ae3f1ca
--- /dev/null
+++ b/src/libs/7zip/unix/CPP/7zip/Archive/Nsis/NsisIn.h
@@ -0,0 +1,181 @@
+// NsisIn.h
+
+#ifndef __ARCHIVE_NSIS_IN_H
+#define __ARCHIVE_NSIS_IN_H
+
+#include "Common/Buffer.h"
+#include "Common/MyCom.h"
+#include "Common/StringConvert.h"
+
+#include "NsisDecode.h"
+
+// #define NSIS_SCRIPT
+
+namespace NArchive {
+namespace NNsis {
+
+const int kSignatureSize = 16;
+#define NSIS_SIGNATURE { 0xEF, 0xBE, 0xAD, 0xDE, 0x4E, 0x75, 0x6C, 0x6C, 0x73, 0x6F, 0x66, 0x74, 0x49, 0x6E, 0x73, 0x74}
+
+extern Byte kSignature[kSignatureSize];
+
+const UInt32 kFlagsMask = 0xF;
+namespace NFlags
+{
+  const UInt32 kUninstall = 1;
+  const UInt32 kSilent = 2;
+  const UInt32 kNoCrc = 4;
+  const UInt32 kForceCrc = 8;
+}
+
+struct CFirstHeader
+{
+  UInt32 Flags;
+  UInt32 HeaderLength;
+ 
+  UInt32 ArchiveSize;
+
+  bool ThereIsCrc() const
+  {
+    if ((Flags & NFlags::kForceCrc ) != 0)
+      return true;
+    return ((Flags & NFlags::kNoCrc) == 0);
+  }
+
+  UInt32 GetDataSize() const { return ArchiveSize - (ThereIsCrc() ? 4 : 0); }
+};
+
+
+struct CBlockHeader
+{
+  UInt32 Offset;
+  UInt32 Num;
+};
+
+struct CItem
+{
+  AString PrefixA;
+  UString PrefixU;
+  AString NameA;
+  UString NameU;
+  FILETIME MTime;
+  bool IsUnicode;
+  bool UseFilter;
+  bool IsCompressed;
+  bool SizeIsDefined;
+  bool CompressedSizeIsDefined;
+  bool EstimatedSizeIsDefined;
+  UInt32 Pos;
+  UInt32 Size;
+  UInt32 CompressedSize;
+  UInt32 EstimatedSize;
+  UInt32 DictionarySize;
+  
+  CItem(): IsUnicode(false), UseFilter(false), IsCompressed(true), SizeIsDefined(false),
+      CompressedSizeIsDefined(false), EstimatedSizeIsDefined(false), Size(0), DictionarySize(1) {}
+
+  bool IsINSTDIR() const
+  {
+    return (PrefixA.Length() >= 3 || PrefixU.Length() >= 3);
+  }
+
+  UString GetReducedName(bool unicode) const
+  {
+    UString s;
+    if (unicode)
+      s = PrefixU;
+    else
+      s = MultiByteToUnicodeString(PrefixA);
+    if (s.Length() > 0)
+      if (s[s.Length() - 1] != L'\\')
+        s += L'\\';
+    if (unicode)
+      s += NameU;
+    else
+      s += MultiByteToUnicodeString(NameA);
+    const int len = 9;
+    if (s.Left(len).CompareNoCase(L"$INSTDIR\\") == 0)
+      s = s.Mid(len);
+    return s;
+  }
+};
+
+class CInArchive
+{
+  UInt64 _archiveSize;
+  CMyComPtr<IInStream> _stream;
+
+  Byte ReadByte();
+  UInt32 ReadUInt32();
+  HRESULT Open2(
+      DECL_EXTERNAL_CODECS_LOC_VARS2
+      );
+  void ReadBlockHeader(CBlockHeader &bh);
+  AString ReadStringA(UInt32 pos) const;
+  UString ReadStringU(UInt32 pos) const;
+  AString ReadString2A(UInt32 pos) const;
+  UString ReadString2U(UInt32 pos) const;
+  AString ReadString2(UInt32 pos) const;
+  AString ReadString2Qw(UInt32 pos) const;
+  HRESULT ReadEntries(const CBlockHeader &bh);
+  HRESULT Parse();
+
+  CByteBuffer _data;
+  UInt64 _size;
+
+  size_t _posInData;
+
+  UInt32 _stringsPos;
+
+
+  bool _headerIsCompressed;
+  UInt32 _nonSolidStartOffset;
+public:
+  HRESULT Open(
+      DECL_EXTERNAL_CODECS_LOC_VARS
+      IInStream *inStream, const UInt64 *maxCheckStartPosition);
+  void Clear();
+
+  UInt64 StreamOffset;
+  CDecoder Decoder;
+  CObjectVector<CItem> Items;
+  CFirstHeader FirstHeader;
+  NMethodType::EEnum Method;
+  UInt32 DictionarySize;
+  bool IsSolid;
+  bool UseFilter;
+  bool FilterFlag;
+  bool IsUnicode;
+
+  #ifdef NSIS_SCRIPT
+  AString Script;
+  #endif
+  UInt32 GetOffset() const { return IsSolid ? 4 : 0; }
+  UInt64 GetDataPos(int index)
+  {
+    const CItem &item = Items[index];
+    return GetOffset() + FirstHeader.HeaderLength + item.Pos;
+  }
+
+  UInt64 GetPosOfSolidItem(int index) const
+  {
+    const CItem &item = Items[index];
+    return 4 + FirstHeader.HeaderLength + item.Pos;
+  }
+  
+  UInt64 GetPosOfNonSolidItem(int index) const
+  {
+    const CItem &item = Items[index];
+    return StreamOffset + _nonSolidStartOffset + 4  + item.Pos;
+  }
+
+  void Release()
+  {
+    Decoder.Release();
+  }
+
+};
+
+}}
+  
+#endif