Update.

2003-11-13  Ulrich Drepper  <drepper@redhat.com>

	* posix/regcomp.c (parse_expression): In BRE consecutive
	duplications are not allowed.

diff --git a/ChangeLog b/ChangeLog
index 1cc7df9921c495a72b25c5c4474db162c18ccf10..8661ab03687b8ba41ea39ce7b432a9e6016bfcf3 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2003-11-13  Ulrich Drepper  <drepper@redhat.com>
+
+       * posix/regcomp.c (parse_expression): In BRE consecutive
+       duplications are not allowed.
+
 2003-11-12  Ulrich Drepper  <drepper@redhat.com>
 
        * posix/regcomp.c (parse_bracket_exp): If end of expression is

diff --git a/posix/regcomp.c b/posix/regcomp.c
index 531ec94f751055aff87dcd9fc0c81603260a1fb6..9a48aa3f3b7ec7d22b4e42f0f00510795b977b97 100644 (file)
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -2233,6 +2233,14 @@ parse_expression (regexp, preg, token, syntax, nest, err)
       tree = parse_dup_op (tree, regexp, dfa, token, syntax, err);
       if (BE (*err != REG_NOERROR && tree == NULL, 0))
        return NULL;
+      /* In BRE consecutive duplications are not allowed.  */
+      if ((syntax & RE_CONTEXT_INVALID_DUP)
+         && (token->type == OP_DUP_ASTERISK
+             || token->type == OP_OPEN_DUP_NUM))
+       {
+         *err = REG_BADRPT;
+         return NULL;
+       }
       dfa->has_plural_match = 1;
     }