@@ -1731,7 +1731,10 @@ _cpp_convert_input (cpp_reader *pfile, const char *input_charset,
/* Resize buffer if we allocated substantially too much, or if we
haven't enough space for the \n-terminator. */
if (to.len + 4096 < to.asize || to.len >= to.asize)
- to.text = XRESIZEVEC (uchar, to.text, to.len + 1);
+ {
+ to.text = XRESIZEVEC (uchar, to.text, to.len + 17);
+ memset (to.text + to.len + 1, 0, 16);
+ }
/* If the file is using old-school Mac line endings (\r only),
terminate with another \r, not an \n, so that we do not mistake