From ec3554cd955aaaeb765b68c41348462ed54224fd Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Thu, 28 Sep 2006 13:31:57 +0000 Subject: * tests/rm/fail-eperm: Enable Perl's (-T) taint checking. Ensure that IFS is set properly and unset PATH. Sanitize inputs. Work properly even when the name of the selected file starts with "-". Invoke rm via "../../src/rm", and adjust expected output. Prompted by a patch from Tim Waugh. --- tests/rm/fail-eperm | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'tests/rm/fail-eperm') diff --git a/tests/rm/fail-eperm b/tests/rm/fail-eperm index d3bfd42c8..0b5dca743 100755 --- a/tests/rm/fail-eperm +++ b/tests/rm/fail-eperm @@ -3,7 +3,7 @@ # Ensure that rm gives the expected diagnostic when failing to remove a file # owned by some other user in a directory with the sticky bit set. -# Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +# Copyright (C) 2002, 2003, 2004, 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 @@ -43,7 +43,7 @@ $PERL -e 1 > /dev/null 2>&1 || { ARGV_0=$0 export ARGV_0 -exec $PERL -w -- - << \EOP +exec $PERL -Tw -- - << \EOP require 5.003; use strict; @@ -54,7 +54,12 @@ my $verbose = $ENV{VERBOSE} && $ENV{VERBOSE} eq 'yes'; # Ensure that the diagnostics are in English. $ENV{LC_ALL} = 'C'; +# Set up a safe, well-known environment +delete $ENV{PATH}; +$ENV{IFS} = ''; + my @dir_list = qw(/tmp /var/tmp /usr/tmp); +my $rm = '../../src/rm'; # Find a directory with the sticky bit set. my $found_dir; @@ -71,6 +76,11 @@ foreach my $dir (@dir_list) foreach my $f (readdir DIR_HANDLE) { + # Consider only names containing "safe" characters. + $f =~ /^([-\@\w.]+)$/ + or next; + $f = $1; # untaint $f + my $target_file = "$dir/$f"; $verbose and warn "$ME: considering $target_file\n"; @@ -86,7 +96,7 @@ foreach my $dir (@dir_list) # Invoke rm on this file and ensure that we get the # expected exit code and diagnostic. - my $cmd = "rm -f $target_file"; + my $cmd = "$rm -f -- $target_file"; open RM, "$cmd 2>&1 |" or die "$ME: cannot execute `$cmd'\n"; @@ -98,7 +108,7 @@ foreach my $dir (@dir_list) or die "$ME: unexpected exit status from `$cmd';\n" . " got $status, expected 1\n"; - my $exp = "rm: cannot remove `$target_file':"; + my $exp = "$rm: cannot remove `$target_file':"; $line or die "$ME: no output from `$cmd';\n" . "expected something like `$exp ...'\n"; -- cgit v1.2.3-54-g00ecf