HEREDOC could fail with NUL terminated lines; fix#3244

mruby · Nov 11, 2016 · 45aadd7 · 45aadd7
1 parent e86ead4
commit 45aadd7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/mrbgems/mruby-compiler/core/parse.y b/mrbgems/mruby-compiler/core/parse.y
@@ -3907,6 +3907,8 @@ parse_string(parser_state *p)
   int end = (intptr_t)p->lex_strterm->cdr->cdr->cdr;
   parser_heredoc_info *hinf = (type & STR_FUNC_HEREDOC) ? parsing_heredoc_inf(p) : NULL;
 
+  if (beg == 0) beg = -3;       /* should never happen */
+  if (end == 0) end = -3;
   newtok(p);
   while ((c = nextc(p)) != end || nest_level != 0) {
     if (hinf && (c == '\n' || c < 0)) {