1  /*
       2   * Copyright (c) 2016-2021 The strace developers.
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: GPL-2.0-or-later
       6   */
       7  
       8  #include "tests.h"
       9  #include "scno.h"
      10  
      11  #ifdef __NR_access
      12  
      13  # include <fcntl.h>
      14  # include <stdio.h>
      15  # include <unistd.h>
      16  
      17  # include "secontext.h"
      18  
      19  int
      20  main(void)
      21  {
      22  	/*
      23  	 * Make sure the current workdir of the tracee
      24  	 * is different from the current workdir of the tracer.
      25  	 */
      26  	create_and_enter_subdir("access_subdir");
      27  
      28  	char *my_secontext = SECONTEXT_PID_MY();
      29  
      30  	static const char sample[] = "access_sample";
      31  	(void) unlink(sample);
      32  	if (open(sample, O_CREAT|O_RDONLY, 0400) == -1)
      33  		perror_msg_and_fail("open: %s", sample);
      34  
      35  	long rc = syscall(__NR_access, sample, F_OK);
      36  	printf("%s%s(\"%s\"%s, F_OK) = %s\n",
      37  	       my_secontext, "access",
      38  	       sample, SECONTEXT_FILE(sample),
      39  	       sprintrc(rc));
      40  
      41  	if (unlink(sample))
      42  		perror_msg_and_fail("unlink: %s", sample);
      43  
      44  	rc = syscall(__NR_access, sample, R_OK|W_OK|X_OK);
      45  	printf("%s%s(\"%s\", R_OK|W_OK|X_OK) = %s\n",
      46  	       my_secontext, "access",
      47  	       sample,
      48  	       sprintrc(rc));
      49  
      50  	leave_and_remove_subdir();
      51  
      52  	puts("+++ exited with 0 +++");
      53  	return 0;
      54  }
      55  
      56  #else
      57  
      58  SKIP_MAIN_UNDEFINED("__NR_access")
      59  
      60  #endif