dot_dfd_cloexec 234 tools/testing/selftests/exec/execveat.c int dot_dfd_cloexec = open_or_die(".", O_DIRECTORY|O_RDONLY|O_CLOEXEC); dot_dfd_cloexec 328 tools/testing/selftests/exec/execveat.c fail += check_execveat_fail(dot_dfd_cloexec, "script", 0, ENOENT);