/* * Check decoding of fchmod syscall. * * Copyright (c) 2016 Fabien Siron * Copyright (c) 2016 Dmitry V. Levin * Copyright (c) 2016-2019 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include "scno.h" #ifdef __NR_fchmod # include # include # include # include int main(void) { static const char fname[] = "fchmod_test_file"; int fd = open(fname, O_CREAT|O_RDONLY, 0400); if (fd < 0) perror_msg_and_fail("open"); if (unlink(fname)) perror_msg_and_fail("unlink"); long rc = syscall(__NR_fchmod, fd, 0600); printf("fchmod(%d, 0600) = %s\n", fd, sprintrc(rc)); close(fd); rc = syscall(__NR_fchmod, fd, 051); printf("fchmod(%d, 051) = %s\n", fd, sprintrc(rc)); rc = syscall(__NR_fchmod, fd, 004); printf("fchmod(%d, 004) = %s\n", fd, sprintrc(rc)); puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_fchmod") #endif