prelude-lml/master: Warn the user in case the PCRE vector is too small

commit 03a37dd9e4f2e28481ed8835ba63eef575ff8a03
Author: Yoann Vandoorselaere <[email protected]>
Date:   Thu Jul 16 15:14:40 2009 +0200

    Warn the user in case the PCRE vector is too small


========================================

 plugins/pcre/rule-regex.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

========================================

diff --git a/plugins/pcre/rule-regex.c b/plugins/pcre/rule-regex.c
index bfcf0be..9fcee64 100644
--- a/plugins/pcre/rule-regex.c
+++ b/plugins/pcre/rule-regex.c
@@ -109,6 +109,10 @@ static int do_pcre_exec(rule_regex_t *item, const char *in, size_t len, int *omi
         optr[1] = obkp1;
 
         ovector_index += (item->capture_count * 2);
+        if ( ovector_index > OVECSIZE ) {
+                prelude_log(PRELUDE_LOG_ERR, "backward references vector is too small: %u entry required.\n", ovector_index);
+                return -1;
+        }
 
         return ret;
 }
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