1  /*
       2   * Check decoding of getdents syscall.
       3   *
       4   * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
       5   * Copyright (c) 2015-2021 The strace developers.
       6   * All rights reserved.
       7   *
       8   * SPDX-License-Identifier: GPL-2.0-or-later
       9   */
      10  
      11  #include "tests.h"
      12  #include "scno.h"
      13  
      14  #ifdef __NR_getdents
      15  
      16  # define kernel_dirent_type kernel_dirent_t
      17  # define NR_getdents	__NR_getdents
      18  # define STR_getdents	"getdents"
      19  
      20  # include "xgetdents.c"
      21  
      22  # if VERBOSE
      23  static void
      24  print_dirent(const kernel_dirent_type *d)
      25  {
      26  	const unsigned int d_name_offset = offsetof(kernel_dirent_type, d_name);
      27  	int d_name_len = (int) d->d_reclen - d_name_offset - 1;
      28  	if (d_name_len <= 0)
      29  		error_msg_and_fail("d_name_len = %d", d_name_len);
      30  
      31  	printf("{");
      32  	PRINT_FIELD_U(*d, d_ino);
      33  	printf(", ");
      34  	PRINT_FIELD_U(*d, d_off);
      35  	printf(", ");
      36  	PRINT_FIELD_U(*d, d_reclen);
      37  	printf(", d_name=");
      38  	print_quoted_cstring(d->d_name, d_name_len);
      39  	printf(", d_type=%s}",
      40  	       str_d_type(*((const char *) d + d->d_reclen - 1)));
      41  }
      42  # endif
      43  
      44  #else
      45  
      46  SKIP_MAIN_UNDEFINED("__NR_getdents")
      47  
      48  #endif