1  /*
       2   * Copyright (c) 2015-2021 Dmitry V. Levin <ldv@strace.io>
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: GPL-2.0-or-later
       6   */
       7  
       8  #include "tests.h"
       9  #include <stdio.h>
      10  #include <unistd.h>
      11  #include <sys/stat.h>
      12  #include <sys/mount.h>
      13  #include "scno.h"
      14  
      15  #if defined __NR_umount2 && (!defined __NR_umount || __NR_umount2 != __NR_umount)
      16  # define TEST_SYSCALL_NR __NR_umount2
      17  # define TEST_SYSCALL_STR "umount2"
      18  #else
      19  # define TEST_SYSCALL_NR __NR_umount
      20  # define TEST_SYSCALL_STR "umount"
      21  #endif
      22  
      23  int
      24  main(void)
      25  {
      26  	static const char sample[] = "umount2.sample";
      27  	if (mkdir(sample, 0700))
      28  		perror_msg_and_fail("mkdir: %s", sample);
      29  	long ret = syscall(TEST_SYSCALL_NR, sample, 31);
      30  	printf("%s(\"%s\", MNT_FORCE|MNT_DETACH|MNT_EXPIRE|UMOUNT_NOFOLLOW|0x10)"
      31  	       " = %s\n", TEST_SYSCALL_STR, sample, sprintrc(ret));
      32  	if (rmdir(sample))
      33  		perror_msg_and_fail("rmdir: %s", sample);
      34  	puts("+++ exited with 0 +++");
      35  	return 0;
      36  }