tests/dd/skip-seek.pl

   1 #!/usr/bin/perl
   2 # Test dd's skip and seek options.
   3
   4 # Copyright (C) 2000-2023 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 use strict;
  20
  21 (my $program_name = $0) =~ s|.*/||;
  22
  23 # Turn off localization of executable's output.
  24 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  25 my $out = 'out';
  26
  27 my @Tests =
  28     (
  29      [
  30       'sk-seek1',
  31       qw (bs=1 skip=1 seek=2 conv=notrunc count=3 status=noxfer of=@AUX@ < ),
  32       {IN=> '0123456789abcdef'},
  33       {AUX=> 'zyxwvutsrqponmlkji'},
  34       {OUT=> ''},
  35       {ERR=> "3+0 records in\n3+0 records out\n"},
  36       {CMP=> ['zy123utsrqponmlkji', {'@AUX@'=> undef}]},
  37      ],
  38      [
  39       'sk-seek2',
  40       qw (bs=5 skip=1 seek=1 conv=notrunc count=1 status=noxfer of=@AUX@ < ),
  41       {IN=> '0123456789abcdef'},
  42       {AUX=> 'zyxwvutsrqponmlkji'},
  43       {OUT=> ''},
  44       {ERR=> "1+0 records in\n1+0 records out\n"},
  45       {CMP=> ['zyxwv56789ponmlkji', {'@AUX@'=> undef}]},
  46      ],
  47      [
  48       'sk-seek3',
  49       qw (bs=5 skip=1 seek=1 count=1 status=noxfer of=@AUX@ < ),
  50       {IN=> '0123456789abcdef'},
  51       {AUX=> 'zyxwvutsrqponmlkji'},
  52       {OUT=> ''},
  53       {ERR=> "1+0 records in\n1+0 records out\n"},
  54       {CMP=> ['zyxwv56789', {'@AUX@'=> undef}]},
  55      ],
  56      [
  57       # Before fileutils-4.0.45, the last 10 bytes of output
  58       # were these "\0\0\0\0\0\0\0\0  ".
  59       'block-sync-1', qw(ibs=10 cbs=10 status=noxfer), 'conv=block,sync', '<',
  60       {IN=> "01234567\nabcdefghijkl\n"},
  61       {OUT=> "01234567  abcdefghij          "},
  62       {ERR=> "2+1 records in\n0+1 records out\n1 truncated record\n"},
  63      ],
  64      [
  65       # Before coreutils-5.93, this would output just "c\n".
  66       'sk-seek4', qw(bs=1 skip=1 status=noxfer),
  67       {IN_PIPE=> "abc\n"},
  68       {OUT=> "bc\n"},
  69       {ERR=> "3+0 records in\n3+0 records out\n"},
  70      ],
  71      [
  72       # Check that iseek and oseek aliases work too.
  73       'sk-seek5',
  74       qw (bs=1 iseek=1 oseek=2 conv=notrunc count=3 status=noxfer of=@AUX@ < ),
  75       {IN=> '0123456789abcdef'},
  76       {AUX=> 'zyxwvutsrqponmlkji'},
  77       {OUT=> ''},
  78       {ERR=> "3+0 records in\n3+0 records out\n"},
  79       {CMP=> ['zy123utsrqponmlkji', {'@AUX@'=> undef}]},
  80      ],
  81     );
  82
  83 my $save_temps = $ENV{DEBUG};
  84 my $verbose = $ENV{VERBOSE};
  85
  86 my $prog = 'dd';
  87 my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
  88 exit $fail;