1  /*
       2   * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
       3   * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
       4   * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
       5   * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
       6   * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@strace.io>
       7   * Copyright (c) 2015-2021 The strace developers.
       8   * All rights reserved.
       9   *
      10   * SPDX-License-Identifier: LGPL-2.1-or-later
      11   */
      12  
      13  #include "defs.h"
      14  #include "asm_stat.h"
      15  #include "stat.h"
      16  
      17  #ifdef HAVE_STRUCT___OLD_KERNEL_STAT
      18  
      19  static void
      20  print_old_kernel_stat(struct tcb *const tcp, const kernel_ulong_t addr)
      21  {
      22  	struct __old_kernel_stat buf;
      23  	if (umove_or_printaddr(tcp, addr, &buf))
      24  		return;
      25  
      26  	struct strace_stat st = {
      27  		.dev = zero_extend_signed_to_ull(buf.st_dev),
      28  		.ino = zero_extend_signed_to_ull(buf.st_ino),
      29  		.rdev = zero_extend_signed_to_ull(buf.st_rdev),
      30  		.size = zero_extend_signed_to_ull(buf.st_size),
      31  		.mode = zero_extend_signed_to_ull(buf.st_mode),
      32  		.nlink = zero_extend_signed_to_ull(buf.st_nlink),
      33  		.uid = zero_extend_signed_to_ull(buf.st_uid),
      34  		.gid = zero_extend_signed_to_ull(buf.st_gid),
      35  		.atime = sign_extend_unsigned_to_ll(buf.st_atime),
      36  		.ctime = sign_extend_unsigned_to_ll(buf.st_ctime),
      37  		.mtime = sign_extend_unsigned_to_ll(buf.st_mtime)
      38  	};
      39  
      40  	print_struct_stat(tcp, &st);
      41  }
      42  
      43  SYS_FUNC(oldstat)
      44  {
      45  	if (entering(tcp)) {
      46  		/* pathname */
      47  		printpath(tcp, tcp->u_arg[0]);
      48  		tprint_arg_next();
      49  	} else {
      50  		/* statbuf */
      51  		print_old_kernel_stat(tcp, tcp->u_arg[1]);
      52  	}
      53  	return 0;
      54  }
      55  
      56  SYS_FUNC(oldfstat)
      57  {
      58  	if (entering(tcp)) {
      59  		/* fd */
      60  		printfd(tcp, tcp->u_arg[0]);
      61  		tprint_arg_next();
      62  	} else {
      63  		/* statbuf */
      64  		print_old_kernel_stat(tcp, tcp->u_arg[1]);
      65  	}
      66  	return 0;
      67  }
      68  
      69  #endif /* HAVE_STRUCT___OLD_KERNEL_STAT */