rule engine: add zero-length check for rule 'z'

2020-06-13 11:06:05 +02:00
parent 323e7463b8
commit 1e2bc78fd0
1 changed files with 1 additions and 0 deletions
@@ -518,6 +518,7 @@ DECLSPEC int mangle_dupechar_first (MAYBE_UNUSED const u8 p0, MAYBE_UNUSED const
 {
  const int out_len = len + p0;

+  if (len     ==                0) return (len);
  if (out_len >= RP_PASSWORD_SIZE) return (len);

  const u8 c = buf[0];