MFB: Fixed bug #47435 (FILTER_FLAG_NO_PRIV_RANGE does not work with ipv6

NEWS

@@ -3,6 +3,9 @@ PHP                                                                        NEWS
 ?? ??? 2009, PHP 5.2.10
 - Fixed memory corruptions while reading properties of zip files. (Ilia)
 
+- Fixed bug #47435 (FILTER_FLAG_NO_PRIV_RANGE does not work with ipv6
+ addresses in the filter extension). (Ilia)
+
 26 Feb 2009, PHP 5.2.9
 - Changed __call() to be invoked on private/protected method access, similar to
   properties and __get(). (Andrei)

ext/filter/logical_filters.c

@@ -655,6 +655,12 @@ void php_filter_validate_ip(PHP_INPUT_FILTER_PARAM_DECL) /* {{{ */
 				if (res < 1) {
 					RETURN_VALIDATION_FAILED
 				}
+				/* Check flags */
+				if (flags & FILTER_FLAG_NO_PRIV_RANGE) {
+					if (Z_STRLEN_P(value) >=2 && (!strncasecmp("FC", Z_STRVAL_P(value), 2) || !strncasecmp("FD", Z_STRVAL_P(value), 2))) {
+						RETURN_VALIDATION_FAILED
+					}
+				}
 			}
 			break;
 	}