tests/du/8gb.sh

   1 #!/bin/sh
   2 # Ensure that du does not rely on narrow types like size_t for
   3 # file sizes or sums.
   4
   5 # Copyright (C) 2003-2019 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19
  20 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  21 print_ver_ du
  22 require_sparse_support_
  23
  24 dd bs=1 seek=8G of=big < /dev/null 2> /dev/null
  25 if test $? != 0; then
  26   skip_ 'cannot create a file large enough for this test; possibly
  27 because file offsets are only 32 bits on this file system'
  28 fi
  29
  30 # FIXME: this should be a test of dd.
  31 # On some systems (at least linux-2.4.18 + NFS to disks on a Solaris system)
  32 # the 'dd' command above mistakenly creates a file of length '0', yet
  33 # doesn't fail.  The root of that failure is that the ftruncate call
  34 # returns zero but doesn't do its job.  Detect this failure.
  35 set x $(ls -gG big)
  36 size=$4
  37 if test "$size" = 0; then
  38   skip_ "cannot create a file large enough for this test
  39 possibly because this system's NFS support is buggy
  40 Consider rerunning this test on a different file system."
  41 fi
  42
  43
  44 # This would print '0   big' with coreutils-4.5.8.
  45 du -ab big > out || fail=1
  46
  47 cat <<\EOF > exp
  48 8589934592      big
  49 EOF
  50
  51 compare exp out || fail=1
  52
  53 Exit $fail