- We need to make sure we pay attention to if our call to

SetClipboardData from the X11DRV version of the function works. If not
  we need to delete the global block we allocated. This is a sever memory
  leak with large clipboard items.
- If an X selection it too large then X may give it to us in chunks,
  we were not handling this well.

windows/x11drv/clipboard.c

@@ -460,9 +460,10 @@ static BOOL X11DRV_CLIPBOARD_ReadSelection(UINT wFormat, Window w, Atom prop, At
 {
     Atom	      atype=AnyPropertyType;
     int		      aformat;
-    unsigned long     nitems,remain,itemSize;
+    unsigned long     total,nitems,remain,itemSize,val_cnt;
-    long              lRequestLength;
+    long              lRequestLength,bwc;
-    unsigned char*    val=NULL;
+    unsigned char*    val;
+    unsigned char*    buffer;
     LPWINE_CLIPFORMAT lpFormat;
     BOOL              bRet = FALSE;
     HWND              hWndClipWindow = GetOpenClipboardWindow();
@@ -495,26 +496,40 @@ static BOOL X11DRV_CLIPBOARD_ReadSelection(UINT wFormat, Window w, Atom prop, At
     
     TRACE("\tretrieving %ld bytes...\n", itemSize * aformat/8);
     lRequestLength = (itemSize * aformat/8)/4  + 1;
-    
+
-    /*
+   bwc = aformat/8; 
-     * Retrieve the actual property in the required X format.
+   /* we want to read the property, but not it too large of chunks or 
-     */
+      we could hang the cause problems. Lets go for 4k blocks */
-    if(TSXGetWindowProperty(display,w,prop,0,lRequestLength,False,AnyPropertyType/*reqType*/,
+
-                            &atype, &aformat, &nitems, &remain, &val) != Success)
+    if(TSXGetWindowProperty(display,w,prop,0,4096,False,
+                            AnyPropertyType/*reqType*/,
+                            &atype, &aformat, &nitems, &remain, &buffer) 
+        != Success)
     {
         WARN("\tcouldn't read property\n");
         return bRet;
     }
+   val = (char*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,
+                          nitems*bwc);
+   memcpy(val,buffer,nitems*bwc);
+   TSXFree(buffer);
+
+   for (total = nitems*bwc,val_cnt=0; remain;)
+   {
+       val_cnt +=nitems*bwc;
+       TSXGetWindowProperty(display, w, prop,
+                          (total / 4), 4096, False,
+                          AnyPropertyType, &atype,
+                          &aformat, &nitems, &remain,
+                          &buffer);
+
+       total += nitems*bwc;
+       HeapReAlloc(GetProcessHeap(),0,val, total);
+       memcpy(&val[val_cnt], buffer, nitems*(aformat/8));
+       TSXFree(buffer);
+   }
+   nitems = total;
 
-    TRACE("\tType %s,Format %d,nitems %ld,remain %ld,value %s\n",
-          atype ? TSXGetAtomName(display,atype) : NULL, aformat,nitems,remain,val);
-    
-    if (remain)
-    {
-        WARN("\tCouldn't read entire property- selection may be too large! Remain=%ld\n", remain);
-        goto END;
-    }
-    
     /*
      * Translate the X property into the appropriate Windows clipboard
      * format, if possible.
@@ -526,8 +541,6 @@ static BOOL X11DRV_CLIPBOARD_ReadSelection(UINT wFormat, Window w, Atom prop, At
       int 	   i,inlcount = 0;
       char*      lpstr;
  
-      TRACE("\tselection is '%s'\n",val);
- 
       for(i=0; i <= nitems; i++)
           if( val[i] == '\n' ) inlcount++;
  
@@ -553,7 +566,11 @@ static BOOL X11DRV_CLIPBOARD_ReadSelection(UINT wFormat, Window w, Atom prop, At
 	      WCHAR *textW = GlobalLock(hUnicodeText);
 	      MultiByteToWideChar(text_cp, 0, lpstr, -1, textW, count);
 	      GlobalUnlock(hUnicodeText);
-	      SetClipboardData(CF_UNICODETEXT, hUnicodeText);
+	      if (!SetClipboardData(CF_UNICODETEXT, hUnicodeText))
+	      {
+            ERR("Not SET! Need to free our own block\n");
+		    GlobalFree(hUnicodeText);
+          }
 	      bRet = TRUE;
 	  }
 	  HeapFree(GetProcessHeap(), 0, lpstr);
@@ -654,9 +671,7 @@ END:
     TSXDeleteProperty(display,w,prop);
     
     /* Free the retrieved property data */
-    if (val)
+    HeapFree(GetProcessHeap(),0,val);
-       TSXFree(val);
-    
     return bRet;
 }