Jim Meyering d69fc66d81 "cut -f 2- A B" no longer triggers a double-free bug
* src/cut.c (cut_fields): Set file-scoped global to NULL after
freeing it.  This avoids a double-free (and core dump on some systems)
for this usage: "echo 1>a; echo 2>b; cut -f2- a b".  Reported by
James Hunt in <http://bugzilla.redhat.com/220312>.
* NEWS: List this bug fix.
* THANKS: Mention him.
* tests/misc/cut: New file.
* tests/misc/Makefile.am (TESTS): Add cut.
2006-12-20 14:25:55 +01:00

52 lines
1.5 KiB
Perl
Executable File

#!/bin/sh
# Test "cut". -*- perl -*-
# Copyright (C) 2006 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
: ${PERL=perl}
: ${srcdir=.}
$PERL -e 1 > /dev/null 2>&1 || {
echo 1>&2 "$0: configure didn't find a usable version of Perl," \
"so can't run this test"
exit 77
}
exec $PERL -w -I$srcdir/.. -MCoreutils -- - <<\EOF
require 5.003;
use strict;
(my $ME = $0) =~ s|.*/||;
# Turn off localisation of executable's ouput.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
my @Tests =
(
# Provoke a double-free in cut from coreutils-6.7.
['dbl-free', '-f2-', {IN=>{f=>'x'}}, {IN=>{g=>'y'}}, {OUT=>"x\ny\n"}],
);
my $save_temps = $ENV{DEBUG};
my $verbose = $ENV{VERBOSE};
my $prog = 'cut';
my $fail = run_tests ($ME, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
EOF