1  /*
       2   * Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io>
       3   * Copyright (c) 2016-2021 The strace developers.
       4   * All rights reserved.
       5   *
       6   * SPDX-License-Identifier: GPL-2.0-or-later
       7   */
       8  
       9  #include "tests.h"
      10  #include "scno.h"
      11  
      12  #ifdef __NR_open
      13  
      14  # include <asm/fcntl.h>
      15  # include <stdio.h>
      16  # include <unistd.h>
      17  
      18  # include "secontext.h"
      19  
      20  int
      21  main(void)
      22  {
      23  	/*
      24  	 * Make sure the current workdir of the tracee
      25  	 * is different from the current workdir of the tracer.
      26  	 */
      27  	create_and_enter_subdir("open_subdir");
      28  
      29  	static const char sample[] = "open.sample";
      30  	char *my_secontext = SECONTEXT_PID_MY();
      31  
      32  	long fd = syscall(__NR_open, sample, O_RDONLY|O_CREAT, 0400);
      33  	printf("%s%s(\"%s\", O_RDONLY|O_CREAT, 0400) = %s%s\n",
      34  	       my_secontext, "open",
      35  	       sample, sprintrc(fd), SECONTEXT_FILE(sample));
      36  
      37  	if (fd != -1) {
      38  		close(fd);
      39  		if (unlink(sample))
      40  			perror_msg_and_fail("unlink");
      41  
      42  		fd = syscall(__NR_open, sample, O_RDONLY);
      43  		printf("%s%s(\"%s\", O_RDONLY) = %s\n",
      44  		       my_secontext, "open", sample, sprintrc(fd));
      45  
      46  		fd = syscall(__NR_open, sample, O_WRONLY|O_NONBLOCK|0x80000000);
      47  		printf("%s%s(\"%s\", O_WRONLY|O_NONBLOCK|0x80000000) = %s\n",
      48  		       my_secontext, "open", sample, sprintrc(fd));
      49  	}
      50  
      51  # ifdef O_TMPFILE
      52  	fd = syscall(__NR_open, sample, O_WRONLY|O_TMPFILE, 0600);
      53  	printf("%s%s(\"%s\", O_WRONLY|O_TMPFILE, 0600) = %s\n",
      54  	       my_secontext, "open",
      55  	       sample, sprintrc(fd));
      56  # endif /* O_TMPFILE */
      57  
      58  	leave_and_remove_subdir();
      59  
      60  	puts("+++ exited with 0 +++");
      61  	return 0;
      62  }
      63  
      64  #else
      65  
      66  SKIP_MAIN_UNDEFINED("__NR_open")
      67  
      68  #endif