1  /*
       2   * Check decoding of getresuid/getresgid/getresuid32/getresgid32 syscalls.
       3   *
       4   * Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io>
       5   * Copyright (c) 2016-2021 The strace developers.
       6   * All rights reserved.
       7   *
       8   * SPDX-License-Identifier: GPL-2.0-or-later
       9   */
      10  
      11  #include <assert.h>
      12  #include <stdio.h>
      13  #include <unistd.h>
      14  
      15  int
      16  main(void)
      17  {
      18  	TAIL_ALLOC_OBJECT_CONST_PTR(unsigned UGID_TYPE, r);
      19  	TAIL_ALLOC_OBJECT_CONST_PTR(unsigned UGID_TYPE, e);
      20  	TAIL_ALLOC_OBJECT_CONST_PTR(unsigned UGID_TYPE, s);
      21  
      22  	if (syscall(SYSCALL_NR, r, e, s))
      23  		perror_msg_and_fail(SYSCALL_NAME);
      24  
      25  	printf("%s([%u], [%u], [%u]) = 0\n", SYSCALL_NAME,
      26  	       (unsigned) *r, (unsigned) *e, (unsigned) *s);
      27  
      28  	assert(syscall(SYSCALL_NR, NULL, e, s) == -1);
      29  	printf("%s(NULL, %p, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, e, s);
      30  
      31  	assert(syscall(SYSCALL_NR, r, NULL, s) == -1);
      32  	printf("%s(%p, NULL, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, s);
      33  
      34  	assert(syscall(SYSCALL_NR, r, e, NULL) == -1);
      35  	printf("%s(%p, %p, NULL) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, e);
      36  
      37  	puts("+++ exited with 0 +++");
      38  	return 0;
      39  }