1#!/usr/bin/perl 2 3# Copyright (C) 2008-2023 Free Software Foundation, Inc. 4 5# This program is free software: you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation, either version 3 of the License, or 8# (at your option) any later version. 9 10# This program is distributed in the hope that it will be useful, 11# but WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13# GNU General Public License for more details. 14 15# You should have received a copy of the GNU General Public License 16# along with this program. If not, see <https://www.gnu.org/licenses/>. 17 18use strict; 19 20my $prog = 'tac'; 21 22# Turn off localization of executable's output. 23@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3; 24 25my $bad_dir = 'no/such/dir'; 26 27# This must be longer than 16KiB to trigger the double free in coreutils-8.5. 28my $long_line = 'o' x (16 * 1024 + 1); 29 30my @Tests = 31( 32 ['segfault', '-r', {IN=>"a\n"}, {IN=>"b\n"}, {OUT=>"a\nb\n"}], 33 ['segfault2','-r', {IN=>"a\nb\n"}, {IN=>"1\n2\n"}, {OUT=>"b\na\n2\n1\n"}], 34 35 ['basic-0', '', {IN=>""}, {OUT=>""}], 36 ['basic-a', '', {IN=>"a"}, {OUT=>"a"}], 37 ['basic-b', '', {IN=>"\n"}, {OUT=>"\n"}], 38 ['basic-c', '', {IN=>"a\n"}, {OUT=>"a\n"}], 39 ['basic-d', '', {IN=>"a\nb"}, {OUT=>"ba\n"}], 40 ['basic-e', '', {IN=>"a\nb\n"}, {OUT=>"b\na\n"}], 41 ['basic-f', '', {IN=>"1234567\n8\n"}, {OUT=>"8\n1234567\n"}], 42 ['basic-g', '', {IN=>"12345678\n9\n"}, {OUT=>"9\n12345678\n"}], 43 ['basic-h', '', {IN=>"123456\n8\n"}, {OUT=>"8\n123456\n"}], 44 ['basic-i', '', {IN=>"12345\n8\n"}, {OUT=>"8\n12345\n"}], 45 ['basic-j', '', {IN=>"1234\n8\n"}, {OUT=>"8\n1234\n"}], 46 ['basic-k', '', {IN=>"123\n8\n"}, {OUT=>"8\n123\n"}], 47 48 ['nul-0', '-s ""', {IN=>""}, {OUT=>""}], 49 ['nul-a', '-s ""', {IN=>"a"}, {OUT=>"a"}], 50 ['nul-b', '-s ""', {IN=>"\0"}, {OUT=>"\0"}], 51 ['nul-c', '-s ""', {IN=>"a\0"}, {OUT=>"a\0"}], 52 ['nul-d', '-s ""', {IN=>"a\0b"}, {OUT=>"ba\0"}], 53 ['nul-e', '-s ""', {IN=>"a\0b\0"}, {OUT=>"b\0a\0"}], 54 55 ['opt-b', '-b', {IN=>"\na\nb\nc"}, {OUT=>"\nc\nb\na"}], 56 ['opt-s', '-s:', {IN=>"a:b:c:"}, {OUT=>"c:b:a:"}], 57 ['opt-sb', qw(-s : -b), {IN=>":a:b:c"}, {OUT=>":c:b:a"}], 58 ['opt-r', qw(-r -s '\._+'), 59 {IN=>"1._2.__3.___4._"}, 60 {OUT=>"4._3.___2.__1._"}], 61 62 ['opt-r2', qw(-r -s '\._+'), 63 {IN=>"a.___b.__1._2.__3.___4._"}, 64 {OUT=>"4._3.___2.__1._b.__a.___"}], 65 66 # This gave incorrect output (.___4._2.__3._1) with tac-1.22. 67 ['opt-br', qw(-b -r -s '\._+'), 68 {IN=>"._1._2.__3.___4"}, {OUT=>".___4.__3._2._1"}], 69 70 ['opt-br2', qw(-b -r -s '\._+'), 71 {IN=>".__x.___y.____z._1._2.__3.___4"}, 72 {OUT=>".___4.__3._2._1.____z.___y.__x"}], 73 74 ['pipe-bad-tmpdir', 75 {ENV => "TMPDIR=$bad_dir"}, 76 {IN_PIPE => "a\n"}, 77 {OUT=>"a\n"}], 78 79 # coreutils-8.5's tac would double-free its primary buffer. 80 ['double-free', {IN=>$long_line}, {OUT=>$long_line}], 81); 82 83@Tests = triple_test \@Tests; 84 85my $save_temps = $ENV{DEBUG}; 86my $verbose = $ENV{VERBOSE}; 87 88my $fail = run_tests ($prog, $prog, \@Tests, $save_temps, $verbose); 89exit $fail; 90