fixed hash collisions in ZIP files (patch 1082026)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32193 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/fs_zip.h b/include/wx/fs_zip.h
index d449cb072a852c0d0161d91a3a4d77a7149d07b5..3276be718641f2bcd3302d3ee6a28c916bfdd604 100644 (file)
--- a/include/wx/fs_zip.h
+++ b/include/wx/fs_zip.h
@@ -21,6 +21,10 @@
 #include "wx/filesys.h"
 #include "wx/hashmap.h"
 
+
+WX_DECLARE_STRING_HASH_MAP(int, wxZipFilenameHashMap);
+
+
 //---------------------------------------------------------------------------
 // wxZipFSHandler
 //---------------------------------------------------------------------------
@@ -40,7 +44,7 @@ class WXDLLIMPEXP_BASE wxZipFSHandler : public wxFileSystemHandler
         class wxZipInputStream *m_Archive;
         wxString m_Pattern, m_BaseDir, m_ZipFile;
         bool m_AllowDirs, m_AllowFiles;
-        wxLongToLongHashMap *m_DirsFound;
+        wxZipFilenameHashMap *m_DirsFound;
 
         wxString DoFind();
         void CloseArchive(class wxZipInputStream *archive);

diff --git a/src/common/fs_zip.cpp b/src/common/fs_zip.cpp
index 136cbb9d3729c7ef47eac0d1b8087b3c41339689..d2210718ce7eacb29c6e74589624d3c530c938ca 100644 (file)
--- a/src/common/fs_zip.cpp
+++ b/src/common/fs_zip.cpp
@@ -166,7 +166,7 @@ wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
         if (m_AllowDirs)
         {
             delete m_DirsFound;
-            m_DirsFound = new wxLongToLongHashMap();
+            m_DirsFound = new wxZipFilenameHashMap();
         }
         return DoFind();
     }
@@ -205,12 +205,9 @@ wxString wxZipFSHandler::DoFind()
             dir = namestr.BeforeLast(wxT('/'));
             while (!dir.IsEmpty())
             {
-                long key = 0;
-                for (size_t i = 0; i < dir.Length(); i++) key += (wxUChar)dir[i];
-                wxLongToLongHashMap::iterator it = m_DirsFound->find(key);
-                if (it == m_DirsFound->end())
+                if( m_DirsFound->find(dir) == m_DirsFound->end() )
                 {
-                    (*m_DirsFound)[key] = 1;
+                    (*m_DirsFound)[dir] = 1;
                     filename = dir.AfterLast(wxT('/'));
                     dir = dir.BeforeLast(wxT('/'));
                     if (!filename.IsEmpty() && m_BaseDir == dir &&