regedit: Use the wcsdup function instead or reimplementing it.

programs/regedit/edit.c

@@ -637,8 +637,7 @@ BOOL RenameKey(HWND hwnd, HKEY hRootKey, LPCWSTR keyPath, LPCWSTR newName)
     } else {
 	LPWSTR srcSubKey_copy;
 
-	parentPath = malloc((lstrlenW(keyPath) + 1) * sizeof(WCHAR));
-	lstrcpyW(parentPath, keyPath);
+	parentPath = wcsdup(keyPath);
 	srcSubKey_copy = wcsrchr(parentPath, '\\');
 	*srcSubKey_copy = 0;
 	srcSubKey = srcSubKey_copy + 1;

programs/regedit/listview.c

@@ -73,8 +73,7 @@ BOOL update_listview_path(const WCHAR *path)
 {
     free(g_currentPath);
 
-    g_currentPath = malloc((lstrlenW(path) + 1) * sizeof(WCHAR));
-    lstrcpyW(g_currentPath, path);
+    g_currentPath = wcsdup(path);
 
     return TRUE;
 }
@@ -154,13 +153,7 @@ int AddEntryToList(HWND hwndLV, WCHAR *Name, DWORD dwValType, void *ValBuf, DWOR
     linfo = malloc(sizeof(LINE_INFO));
     linfo->dwValType = dwValType;
     linfo->val_len = dwCount;
-
-    if (Name)
-    {
-        linfo->name = malloc((lstrlenW(Name) + 1) * sizeof(WCHAR));
-        lstrcpyW(linfo->name, Name);
-    }
-    else linfo->name = NULL;
+    linfo->name = wcsdup(Name);
 
     if (ValBuf && dwCount)
     {

programs/regedit/regproc.c

@@ -447,10 +447,7 @@ static LONG open_key(struct parser *parser, WCHAR *path)
                           KEY_ALL_ACCESS, NULL, &parser->hkey, NULL);
 
     if (res == ERROR_SUCCESS)
-    {
-        parser->key_name = malloc((lstrlenW(path) + 1) * sizeof(WCHAR));
-        lstrcpyW(parser->key_name, path);
-    }
+        parser->key_name = wcsdup(path);
     else
         parser->hkey = NULL;
 
@@ -699,8 +696,7 @@ static WCHAR *quoted_value_name_state(struct parser *parser, WCHAR *pos)
         goto invalid;
 
     /* copy the value name in case we need to parse multiple lines and the buffer is overwritten */
-    parser->value_name = malloc((lstrlenW(val_name) + 1) * sizeof(WCHAR));
-    lstrcpyW(parser->value_name, val_name);
+    parser->value_name = wcsdup(val_name);
 
     set_state(parser, DATA_START);
     return p;
@@ -1486,8 +1482,7 @@ static BOOL export_all(WCHAR *file_name, WCHAR *path, BOOL unicode)
             return FALSE;
         }
 
-        class_name = malloc((lstrlenW(reg_class_namesW[i]) + 1) * sizeof(WCHAR));
-        lstrcpyW(class_name, reg_class_namesW[i]);
+        class_name = wcsdup(reg_class_namesW[i]);
 
         export_registry_data(fp, classes[i], class_name, unicode);