posix_pathconf throwing ValueError on empty path

Author: devnexen

ext/posix/posix.c

@@ -1208,7 +1208,11 @@ PHP_FUNCTION(posix_pathconf)
 		Z_PARAM_LONG(name);
 	ZEND_PARSE_PARAMETERS_END();
 
-	if (path_len == 0 || php_check_open_basedir(path)) {
+	if (path_len == 0) {
+		zend_argument_value_error(1, "cannot be empty");
+		RETURN_THROWS();
+	} else if (php_check_open_basedir(path)) {
+		php_error_docref(NULL, E_WARNING, "Invalid path supplied: %s", path);
 		RETURN_FALSE;
 	}
 

ext/posix/tests/posix_pathconf.phpt

@@ -4,13 +4,17 @@ Test posix_pathconf
 posix
 --FILE--
 <?php
-var_dump(posix_pathconf('', POSIX_PC_PATH_MAX));
+try {
+	posix_pathconf('', POSIX_PC_PATH_MAX);
+} catch (\ValueError $e) {
+	echo $e->getMessage(). "\n";
+}
 var_dump(posix_pathconf(str_repeat('non_existent', 4096), POSIX_PC_NAME_MAX));
 var_dump(posix_errno() != 0);
 var_dump(posix_pathconf(sys_get_temp_dir(), POSIX_PC_PATH_MAX));
 ?>
 --EXPECTF--
-bool(false)
+posix_pathconf(): Argument #1 ($path) cannot be empty
 bool(false)
 bool(true)
 int(%d)