3.13

2025-12-10 04:07:12 -06:00 · 2003-12-11 00:00:00 +00:00
commit 8c1b5c7b7e
982 changed files with 118799 additions and 0 deletions
--- a/7zip/Archive/Zip/ZipItem.cpp
+++ b/7zip/Archive/Zip/ZipItem.cpp
@@ -0,0 +1,132 @@
+// Archive/ZipItem.cpp
+
+#include "StdAfx.h"
+
+#include "ZipHeader.h"
+#include "ZipItem.h"
+
+namespace NArchive {
+namespace NZip {
+
+bool operator==(const CVersion &v1, const CVersion &v2)
+{
+  return (v1.Version == v2.Version) && (v1.HostOS == v2.HostOS);
+}
+
+bool operator!=(const CVersion &v1, const CVersion &v2)
+{
+  return !(v1 == v2);
+} 
+
+bool CItem::IsEncrypted() const
+{ return (Flags & NFileHeader::NFlags::kEncryptedMask) != 0; }
+bool CItem::HasDescriptor() const
+  { return (Flags & NFileHeader::NFlags::kDescriptorUsedMask) != 0; }
+
+bool CItem::IsImplodeBigDictionary() const
+{ 
+if (CompressionMethod != NFileHeader::NCompressionMethod::kImploded)
+    throw 12312212;
+  return (Flags & NFileHeader::NFlags::kImplodeDictionarySizeMask) != 0; 
+}
+
+bool CItem::IsImplodeLiteralsOn() const
+{
+if (CompressionMethod != NFileHeader::NCompressionMethod::kImploded)
+    throw 12312213;
+  return (Flags & NFileHeader::NFlags::kImplodeLiteralsOnMask) != 0; 
+}
+
+static const char *kUnknownAttributes = "Unknown file attributes";
+
+bool CItem::IsDirectory() const
+{ 
+  if (!Name.IsEmpty())
+  {
+    #ifdef WIN32
+      LPCSTR prev = CharPrevExA(GetCodePage(), Name, &Name[Name.Length()], 0);
+      if (*prev == '/')
+        return true;
+    #else
+      if (Name[Name.Length() - 1) == '/')
+        return true;
+    #endif
+  }
+  WORD highAttributes = WORD((ExternalAttributes >> 16 ) & 0xFFFF);
+  switch(MadeByVersion.HostOS)
+  {
+    case NFileHeader::NHostOS::kAMIGA:
+      switch (highAttributes & NFileHeader::NAmigaAttribute::kIFMT) 
+      {
+        case NFileHeader::NAmigaAttribute::kIFDIR:
+          return true;
+        case NFileHeader::NAmigaAttribute::kIFREG:  
+          return false;
+        default:
+          return false; // change it throw kUnknownAttributes;
+      }
+    case NFileHeader::NHostOS::kFAT:
+    case NFileHeader::NHostOS::kNTFS:
+    case NFileHeader::NHostOS::kHPFS:
+    case NFileHeader::NHostOS::kVFAT:
+      return ((ExternalAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
+    case NFileHeader::NHostOS::kAtari:
+    case NFileHeader::NHostOS::kMac:
+    case NFileHeader::NHostOS::kVMS:
+    case NFileHeader::NHostOS::kVM_CMS:
+    case NFileHeader::NHostOS::kAcorn:
+    case NFileHeader::NHostOS::kMVS:
+      return false; // change it throw kUnknownAttributes;
+    default:
+      /*
+      switch (highAttributes & NFileHeader::NUnixAttribute::kIFMT) 
+      {
+        case NFileHeader::NUnixAttribute::kIFDIR:
+          return true;
+        default:
+          return false;
+      }
+      */
+      return false;
+  }
+}
+
+UINT32 CItem::GetWinAttributes() const
+{
+  DWORD winAttributes;
+  switch(MadeByVersion.HostOS)
+  {
+    case NFileHeader::NHostOS::kFAT:
+    case NFileHeader::NHostOS::kNTFS:
+      winAttributes = ExternalAttributes; 
+      break;
+    default:
+      winAttributes = 0; // must be converted from unix value;; 
+  }
+  if (IsDirectory())       // test it;
+    winAttributes |= FILE_ATTRIBUTE_DIRECTORY;
+  return winAttributes;
+}
+
+void CItem::ClearFlags()
+  { Flags = 0; }
+
+void CItem::SetFlagBits(int startBitNumber, int numBits, int value)
+{  
+  WORD mask = ((1 << numBits) - 1) << startBitNumber;
+  Flags &= ~mask;
+  Flags |= value << startBitNumber;
+}
+
+void CItem::SetBitMask(int bitMask, bool enable)
+{  
+  if(enable) 
+    Flags |= bitMask;
+  else
+    Flags &= ~bitMask;
+}
+
+void CItem::SetEncrypted(bool encrypted)
+  { SetBitMask(NFileHeader::NFlags::kEncryptedMask, encrypted); }
+
+}}