granicus.if.org Git - strace/blob - oldstat.c

   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@altlinux.org>
   7  * Copyright (c) 2015-2018 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                 printpath(tcp, tcp->u_arg[0]);
  47                 tprints(", ");
  48         } else {
  49                 print_old_kernel_stat(tcp, tcp->u_arg[1]);
  50         }
  51         return 0;
  52 }
  53
  54 SYS_FUNC(oldfstat)
  55 {
  56         if (entering(tcp)) {
  57                 printfd(tcp, tcp->u_arg[0]);
  58                 tprints(", ");
  59         } else {
  60                 print_old_kernel_stat(tcp, tcp->u_arg[1]);
  61         }
  62         return 0;
  63 }
  64
  65 #endif /* HAVE_STRUCT___OLD_KERNEL_STAT */