1  /*
       2   * This file is part of strace-p-Y-p strace test.
       3   *
       4   * Copyright (c) 2021 Dmitry V. Levin <ldv@strace.io>
       5   * All rights reserved.
       6   *
       7   * SPDX-License-Identifier: GPL-2.0-or-later
       8   */
       9  
      10  #include "tests.h"
      11  #include <stdio.h>
      12  #include <stdlib.h>
      13  #include <unistd.h>
      14  
      15  #ifndef MY_COMM
      16  # define MY_COMM "strace-p1-Y-p"
      17  #endif
      18  
      19  int
      20  main(int ac, char **av)
      21  {
      22  	if (ac < 2)
      23  		error_msg_and_fail("missing operand");
      24  
      25  	if (ac > 2)
      26  		error_msg_and_fail("extra operand");
      27  
      28  	static const char proc_self_comm[] = "/proc/self/comm";
      29  	skip_if_unavailable(proc_self_comm);
      30  
      31  	int seconds = atoi(av[1]);
      32  	FILE *fp = fdopen(3, "a");
      33  	if (!fp)
      34  		error_msg_and_fail("fdopen(3, \"a\")");
      35  
      36  	fprintf(fp, "%u<%s> +++ exited with 0 +++\n", getpid(), MY_COMM);
      37  	fclose(fp);
      38  
      39  	if (sleep(seconds))
      40  		perror_msg_and_skip("sleep: %d", seconds);
      41  
      42  	return 0;
      43  }