open_basedir check for linkinfo

Author: rlerdorf

ext/standard/link.c

@@ -94,20 +94,31 @@ PHP_FUNCTION(readlink)
 PHP_FUNCTION(linkinfo)
 {
 	char *link;
-	int link_len;
+	char *dirname;
+	int link_len, dir_len;
 	struct stat sb;
 	int ret;
 
 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &link, &link_len) == FAILURE) {
 		return;
 	}
 
+	dirname = estrndup(link, link_len);
+	dir_len = php_dirname(dirname, link_len);
+
+	if (php_check_open_basedir(dirname TSRMLS_CC)) {
+		efree(dirname);
+		RETURN_FALSE;
+	}
+
 	ret = VCWD_LSTAT(link, &sb);
 	if (ret == -1) {
 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
+		efree(dirname);
 		RETURN_LONG(-1L);
 	}
 
+	efree(dirname);
 	RETURN_LONG((long) sb.st_dev);
 }
 /* }}} */