taint.t revision 7c478bd95313f5f23a4c958a745db2134aa03244
#!./perl -Tw
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require Config; import Config;
if ($^O ne 'VMS' and $Config{'extensions'} !~ /\bPOSIX\b/) {
print "1..0\n";
exit 0;
}
}
use Test::More tests => 7;
use Scalar::Util qw/tainted/;
use POSIX qw(fcntl_h open read mkfifo);
use strict ;
$| = 1;
my $buffer;
my @buffer;
my $testfd;
# Sources of taint:
# The empty tainted value, for tainting strings
my $TAINT = substr($^X, 0, 0);
my $file = 'TEST';
eval { mkfifo($TAINT. $file, 0) };
like($@, qr/^Insecure dependency/, 'mkfifo with tainted data');
eval { $testfd = open($TAINT. $file, O_WRONLY, 0) };
like($@, qr/^Insecure dependency/, 'open with tainted data');
eval { $testfd = open($file, O_RDONLY, 0) };
is($@, "", 'open with untainted data');
read($testfd, $buffer, 2) if $testfd > 2;
is( $buffer, "#!", ' read' );
ok(tainted($buffer), ' scalar tainted');
TODO: {
local $TODO = "POSIX::read won't taint an array element";
read($testfd, $buffer[1], 2) if $testfd > 2;
is( $buffer[1], "./", ' read' );
ok(tainted($buffer[1]), ' array element tainted');
}