Add wxSearchCtrl screenshots

[wxWidgets.git] / src / common / strconv.cpp

diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index 79ba45b9a11a7c948288e5462c893ea8a29456c8..ae7fa502312f48e87f978f5959ed97f42dac9763 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -355,7 +355,9 @@ wxMBConv::FromWChar(char *dst, size_t dstLen,
 
 size_t wxMBConv::MB2WC(wchar_t *outBuff, const char *inBuff, size_t outLen) const
 {
-    size_t rc = ToWChar(outBuff, outLen, inBuff);
+    // add 1 to available buffer length because MB2WC() parameter counts the
+    // number of non-NUL characters while ToWChar() counts everything
+    size_t rc = ToWChar(outBuff, outLen + 1, inBuff);
     if ( rc != wxCONV_FAILED )
     {
         // ToWChar() returns the buffer length, i.e. including the trailing
@@ -368,10 +370,12 @@ size_t wxMBConv::MB2WC(wchar_t *outBuff, const char *inBuff, size_t outLen) cons
 
 size_t wxMBConv::WC2MB(char *outBuff, const wchar_t *inBuff, size_t outLen) const
 {
-    size_t rc = FromWChar(outBuff, outLen, inBuff);
+    const size_t nulLen = GetMBNulLen();
+
+    size_t rc = FromWChar(outBuff, outLen + nulLen, inBuff);
     if ( rc != wxCONV_FAILED )
     {
-        rc -= GetMBNulLen();
+        rc -= nulLen;
     }
 
     return rc;
@@ -565,7 +569,7 @@ static const unsigned char utf7unb64[] =
     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 };
 
 size_t wxMBConvUTF7::ToWChar(wchar_t *dst, size_t dstLen,
@@ -609,11 +613,19 @@ size_t wxMBConvUTF7::ToWChar(wchar_t *dst, size_t dstLen,
             const unsigned char dc = utf7unb64[cc];
             if ( dc == 0xff )
             {
-                // end of encoded part, check that nothing was left: the bit
-                // field cycles through 0,6,4,2 sequence so check that we're at
-                // the end of it
-                if ( state.bit != 2 )
+                // end of encoded part, check that nothing was left: there can
+                // be up to 4 bits of 0 padding but nothing else (we also need
+                // to check isLSB as we count bits modulo 8 while a valid UTF-7
+                // encoded sequence must contain an integral number of UTF-16
+                // characters)
+                if ( state.isLSB || state.bit > 4 ||
+                        (state.accum & ((1 << state.bit) - 1)) )
+                {
+                    if ( !len )
+                        state = stateOrig;
+
                     return wxCONV_FAILED;
+                }
 
                 state.ToDirect();
 
@@ -666,7 +678,15 @@ size_t wxMBConvUTF7::ToWChar(wchar_t *dst, size_t dstLen,
                     len++;
                     src++;
                 }
-                else
+                else if ( utf7unb64[(unsigned)*src] == 0xff )
+                {
+                    // empty encoded chunks are not allowed
+                    if ( !len )
+                        state = stateOrig;
+
+                    return wxCONV_FAILED;
+                }
+                else // base-64 encoded chunk follows
                 {
                     state.ToShifted();
                 }
@@ -2874,6 +2894,16 @@ wxCSConv::wxCSConv(const wxString& charset)
 
 #if wxUSE_FONTMAP
     m_encoding = wxFontMapperBase::GetEncodingFromName(charset);
+    if ( m_encoding == wxFONTENCODING_MAX )
+    {
+        // set to unknown/invalid value
+        m_encoding = wxFONTENCODING_SYSTEM;
+    }
+    else if ( m_encoding == wxFONTENCODING_DEFAULT )
+    {
+        // wxFONTENCODING_DEFAULT is same as US-ASCII in this context
+        m_encoding = wxFONTENCODING_ISO8859_1;
+    }
 #else
     m_encoding = wxFONTENCODING_SYSTEM;
 #endif