From: Ilia Alshanetsky <iliaa@php.net>
Date: Mon, 20 Oct 2008 23:23:53 +0000 (+0000)
Subject: MFB: Fixed bug #46343 (IPv6 address filter accepts invalid address)
X-Git-Tag: BEFORE_HEAD_NS_CHANGE~191
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=42e1ad74211696e5bf8ace6be868e1776c798c10;p=php

MFB: Fixed bug #46343 (IPv6 address filter accepts invalid address)
---

diff --git a/ext/filter/logical_filters.c b/ext/filter/logical_filters.c
index 211d2c7cf0..df746b266f 100644
--- a/ext/filter/logical_filters.c
+++ b/ext/filter/logical_filters.c
@@ -533,6 +533,7 @@ static int _php_filter_validate_ipv6(char *str, int str_len TSRMLS_DC) /* {{{ */
 	char *ipv4;
 	char *end;
 	int ip4elm[4];
+	char *s = str;
 
 	if (!memchr(str, ':', str_len)) {
 		return 0;
@@ -572,6 +573,8 @@ static int _php_filter_validate_ipv6(char *str, int str_len TSRMLS_DC) /* {{{ */
 					return 1;
 				}
 				compressed = 1;
+			} else if ((str - 1) == s) {
+				return 0;
 			}				
 		}
 		n = 0;