From d69fc66d81c7166fe689418f42b7cb900d2a1433 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Wed, 20 Dec 2006 14:25:55 +0100
Subject: "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.

---
 tests/misc/cut | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100755 tests/misc/cut

(limited to 'tests/misc/cut')

diff --git a/tests/misc/cut b/tests/misc/cut
new file mode 100755
index 000000000..3db4c9bae
--- /dev/null
+++ b/tests/misc/cut
@@ -0,0 +1,51 @@
+#!/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
-- 
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