# tests whether tainting works with UTF-8
BEGIN {
- if ($ENV{PERL_CORE_MINITEST}) {
- print "1..0 # Skip: no dynamic loading on miniperl, no threads\n";
- exit 0;
- }
chdir 't' if -d 't';
- @INC = qw(../lib);
+ require './test.pl';
+ set_up_inc('../lib');
}
use strict;
use Config;
-BEGIN {
- if ($Config{extensions} !~ m(\bList/Util\b)) {
- print "1..0 # Skip: no Scalar::Util module\n";
- exit 0;
- }
+# How to identify taint when you see it
+sub any_tainted (@) {
+ not eval { join("",@_), kill 0; 1 };
+}
+sub tainted ($) {
+ any_tainted @_;
}
-use Scalar::Util qw(tainted);
-
-use Test;
-plan tests => 3*10;
-my $cnt = 0;
+plan(tests => 3*10 + 3*8 + 2*16 + 3);
my $arg = $ENV{PATH}; # a tainted value
use constant UTF8 => "\x{1234}";
+*is_utf8 = \&utf8::is_utf8;
+
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: $encode, before test\n";
+ is(tainted($taint), tainted($arg), "tainted: $encode, before test");
my $lconcat = $taint;
$lconcat .= UTF8;
- print $lconcat eq $string."\x{1234}"
- ? "ok " : "not ok ", ++$cnt, " # compare: $encode, concat left\n";
+ is($lconcat, $string.UTF8, "compare: $encode, concat left");
- print tainted($lconcat) == tainted($arg)
- ? "ok " : "not ok ", ++$cnt, " # tainted: $encode, concat left\n";
+ is(tainted($lconcat), tainted($arg), "tainted: $encode, concat left");
my $rconcat = UTF8;
$rconcat .= $taint;
- print $rconcat eq "\x{1234}".$string
- ? "ok " : "not ok ", ++$cnt, " # compare: $encode, concat right\n";
+ is($rconcat, UTF8.$string, "compare: $encode, concat right");
- print tainted($rconcat) == tainted($arg)
- ? "ok " : "not ok ", ++$cnt, " # tainted: $encode, concat right\n";
+ is(tainted($rconcat), tainted($arg), "tainted: $encode, concat right");
my $ljoin = join('!', $taint, UTF8);
- print $ljoin eq join('!', $string, UTF8)
- ? "ok " : "not ok ", ++$cnt, " # compare: $encode, join left\n";
+ is($ljoin, join('!', $string, UTF8), "compare: $encode, join left");
- print tainted($ljoin) == tainted($arg)
- ? "ok " : "not ok ", ++$cnt, " # tainted: $encode, join left\n";
+ is(tainted($ljoin), tainted($arg), "tainted: $encode, join left");
my $rjoin = join('!', UTF8, $taint);
- print $rjoin eq join('!', UTF8, $string)
- ? "ok " : "not ok ", ++$cnt, " # compare: $encode, join right\n";
+ is($rjoin, join('!', UTF8, $string), "compare: $encode, join right");
+
+ is(tainted($rjoin), tainted($arg), "tainted: $encode, join right");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, after test");
+}
+
+
+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);
+
+ is($taint, $byte, "compare: $encode, encode utf8");
+
+ is(pack('a*',$taint), pack('a*',$byte), "bytecmp: $encode, encode utf8");
+
+ ok(!is_utf8($taint), "is_utf8: $encode, encode utf8");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, encode utf8");
+
+ my $taint = $arg; substr($taint, 0) = $byte;
+ utf8::decode($taint);
+
+ is($taint, $utf8, "compare: $encode, decode byte");
+
+ is(pack('a*',$taint), pack('a*',$utf8), "bytecmp: $encode, decode byte");
+
+ is(is_utf8($taint), ($encode ne 'ascii'), "is_utf8: $encode, decode byte");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, decode byte");
+}
+
+
+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);
+
+ is($taint, $up, "compare: $encode, upgrade up");
+
+ is(pack('a*',$taint), pack('a*',$up), "bytecmp: $encode, upgrade up");
+
+ ok(is_utf8($taint), "is_utf8: $encode, upgrade up");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, upgrade up");
+
+ my $taint = $arg; substr($taint, 0) = $down;
+ utf8::upgrade($taint);
+
+ is($taint, $up, "compare: $encode, upgrade down");
+
+ is(pack('a*',$taint), pack('a*',$up), "bytecmp: $encode, upgrade down");
+
+ ok(is_utf8($taint), "is_utf8: $encode, upgrade down");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, upgrade down");
+
+ my $taint = $arg; substr($taint, 0) = $up;
+ utf8::downgrade($taint);
+
+ is($taint, $down, "compare: $encode, downgrade up");
+
+ is(pack('a*',$taint), pack('a*',$down), "bytecmp: $encode, downgrade up");
+
+ ok(!is_utf8($taint), "is_utf8: $encode, downgrade up");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, downgrade up");
+
+ my $taint = $arg; substr($taint, 0) = $down;
+ utf8::downgrade($taint);
+
+ is($taint, $down, "compare: $encode, downgrade down");
+
+ is(pack('a*',$taint), pack('a*',$down), "bytecmp: $encode, downgrade down");
+
+ ok(!is_utf8($taint), "is_utf8: $encode, downgrade down");
+
+ is(tainted($taint), tainted($arg), "tainted: $encode, downgrade down");
+}
+
+SKIP: {
+ if (is_miniperl()) {
+ skip_if_miniperl("Unicode tables not built yet", 2)
+ unless eval 'require "unicore/Heavy.pl"';
+ }
+ fresh_perl_is('$a = substr $^X, 0, 0; /\x{100}/i; /$a\x{100}/i || print q,ok,',
+ 'ok', {switches => ["-T", "-l"]},
+ "matching a regexp is taint agnostic");
+
+ fresh_perl_is('$a = substr $^X, 0, 0; /$a\x{100}/i || print q,ok,',
+ 'ok', {switches => ["-T", "-l"]},
+ "therefore swash_init should be taint agnostic");
+}
- print tainted($rjoin) == tainted($arg)
- ? "ok " : "not ok ", ++$cnt, " # tainted: $encode, join right\n";
+{
+ # RT #122148: s///e on tainted utf8 strings got pos() messed up in 5.20
- print tainted($taint) == tainted($arg)
- ? "ok " : "not ok ", ++$cnt, " # tainted: $encode, after test\n";
+ my @p;
+ my $s = "\x{100}\x{100}\x{100}\x{100}". $^X;
+ $s =~ s/\x{100}/push @p, pos($s); "xxxx";/eg;
+ is("@p", "0 1 2 3", "RT #122148");
}
https://perl5.git.perl.org / perl5.git / blobdiff