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#!./perl -T
# tests whether tainting works with UTF-8
BEGIN {
if ($ENV{PERL_CORE_MINITEST}) {
print "1..0 # Skip: no dynamic loading on miniperl, no threads\n";
exit 0;
}
chdir 't' if -d 't';
@INC = qw(../lib);
}
use strict;
use Config;
BEGIN {
if ($Config{extensions} !~ m(\bList/Util\b)) {
print "1..0 # Skip: no Scalar::Util module\n";
exit 0;
}
}
use Scalar::Util qw(tainted);
use Test;
plan tests => 3*10 + 3*8 + 2*16;
my $cnt = 0;
my $arg = $ENV{PATH}; # a tainted value
use constant UTF8 => "\x{1234}";
sub is_utf8 {
my $s = shift;
return 0xB6 != unpack('C', chr(0xB6).$s);
}
for my $ary ([ascii => 'perl'], [latin1 => "\xB6"], [utf8 => "\x{100}"]) {
my $encode = $ary->[0];
my $string = $ary->[1];
my $taint = $arg; substr($taint, 0) = $ary->[1];
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, before test\n";
my $lconcat = $taint;
$lconcat .= UTF8;
print $lconcat eq $string.UTF8
? "ok " : "not ok ", ++$cnt, " # compare: $encode, concat left\n";
print tainted($lconcat) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, concat left\n";
my $rconcat = UTF8;
$rconcat .= $taint;
print $rconcat eq UTF8.$string
? "ok " : "not ok ", ++$cnt, " # compare: $encode, concat right\n";
print tainted($rconcat) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, concat right\n";
my $ljoin = join('!', $taint, UTF8);
print $ljoin eq join('!', $string, UTF8)
? "ok " : "not ok ", ++$cnt, " # compare: $encode, join left\n";
print tainted($ljoin) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, join left\n";
my $rjoin = join('!', UTF8, $taint);
print $rjoin eq join('!', UTF8, $string)
? "ok " : "not ok ", ++$cnt, " # compare: $encode, join right\n";
print tainted($rjoin) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, join right\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, after test\n";
}
for my $ary ([ascii => 'perl'], [latin1 => "\xB6"], [utf8 => "\x{100}"]) {
my $encode = $ary->[0];
my $utf8 = pack('U*') . $ary->[1];
my $byte = unpack('U0a*', $utf8);
my $taint = $arg; substr($taint, 0) = $utf8;
utf8::encode($taint);
print $taint eq $byte
? "ok " : "not ok ", ++$cnt, " # compare: $encode, encode utf8\n";
print pack('a*',$taint) eq pack('a*',$byte)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, encode utf8\n";
print !is_utf8($taint)
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, encode utf8\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, encode utf8\n";
my $taint = $arg; substr($taint, 0) = $byte;
utf8::decode($taint);
print $taint eq $utf8
? "ok " : "not ok ", ++$cnt, " # compare: $encode, decode byte\n";
print pack('a*',$taint) eq pack('a*',$utf8)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, decode byte\n";
print is_utf8($taint) eq ($encode ne 'ascii')
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, decode byte\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, decode byte\n";
}
for my $ary ([ascii => 'perl'], [latin1 => "\xB6"]) {
my $encode = $ary->[0];
my $up = pack('U*') . $ary->[1];
my $down = pack("a*", $ary->[1]);
my $taint = $arg; substr($taint, 0) = $up;
utf8::upgrade($taint);
print $taint eq $up
? "ok " : "not ok ", ++$cnt, " # compare: $encode, upgrade up\n";
print pack('a*',$taint) eq pack('a*',$up)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, upgrade up\n";
print is_utf8($taint)
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, upgrade up\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, upgrade up\n";
my $taint = $arg; substr($taint, 0) = $down;
utf8::upgrade($taint);
print $taint eq $up
? "ok " : "not ok ", ++$cnt, " # compare: $encode, upgrade down\n";
print pack('a*',$taint) eq pack('a*',$up)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, upgrade down\n";
print is_utf8($taint)
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, upgrade down\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, upgrade down\n";
my $taint = $arg; substr($taint, 0) = $up;
utf8::downgrade($taint);
print $taint eq $down
? "ok " : "not ok ", ++$cnt, " # compare: $encode, downgrade up\n";
print pack('a*',$taint) eq pack('a*',$down)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, downgrade up\n";
print !is_utf8($taint)
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, downgrade up\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, downgrade up\n";
my $taint = $arg; substr($taint, 0) = $down;
utf8::downgrade($taint);
print $taint eq $down
? "ok " : "not ok ", ++$cnt, " # compare: $encode, downgrade down\n";
print pack('a*',$taint) eq pack('a*',$down)
? "ok " : "not ok ", ++$cnt, " # bytecmp: $encode, downgrade down\n";
print !is_utf8($taint)
? "ok " : "not ok ", ++$cnt, " # is_utf8: $encode, downgrade down\n";
print tainted($taint) == tainted($arg)
? "ok " : "not ok ", ++$cnt, " # tainted: $encode, downgrade down\n";
}
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