# Taint tests by Tom Phoenix <rootbeer@teleport.com>.
#
# I don't claim to know all about tainting. If anyone sees
-# tests that I've missed here, please add them. But this is
+# tests that I've missed here, please add them. But this is
# better than having no tests at all, right?
#
BEGIN {
chdir 't' if -d 't';
- @INC = '../lib' if -d '../lib';
+ @INC = '../lib';
}
use strict;
use Config;
+# We do not want the whole taint.t to fail
+# just because Errno possibly failing.
+eval { require Errno; import Errno };
+
+use vars qw($ipcsysv); # did we manage to load IPC::SysV?
+
+BEGIN {
+ if ($^O eq 'VMS' && !defined($Config{d_setenv})) {
+ $ENV{PATH} = $ENV{PATH};
+ $ENV{TERM} = $ENV{TERM} ne ''? $ENV{TERM} : 'dummy';
+ }
+ if ($Config{'extensions'} =~ /\bIPC\/SysV\b/
+ && ($Config{d_shm} || $Config{d_msg})) {
+ eval { require IPC::SysV };
+ unless ($@) {
+ $ipcsysv++;
+ IPC::SysV->import(qw(IPC_PRIVATE IPC_RMID IPC_CREAT S_IRWXU));
+ }
+ }
+}
+
my $Is_VMS = $^O eq 'VMS';
-my $Invoke_Perl = $Is_VMS ? 'MCR Sys$Disk:[]Perl.' : './perl';
+my $Is_MSWin32 = $^O eq 'MSWin32';
+my $Is_Dos = $^O eq 'dos';
+my $Invoke_Perl = $Is_VMS ? 'MCR Sys$Disk:[]Perl.' :
+ $Is_MSWin32 ? '.\perl' : './perl';
+my @MoreEnv = qw/IFS CDPATH ENV BASH_ENV/;
+
if ($Is_VMS) {
+ my (%old, $x);
+ for $x ('DCL$PATH', @MoreEnv) {
+ ($old{$x}) = $ENV{$x} =~ /^(.*)$/ if exists $ENV{$x};
+ }
eval <<EndOfCleanup;
END {
- \$ENV{PATH} = '';
+ \$ENV{PATH} = '' if $Config{d_setenv};
warn "# Note: logical name 'PATH' may have been deleted\n";
- \$ENV{IFS} = "$ENV{IFS}";
- \$ENV{'DCL\$PATH'} = "$ENV{'DCL$PATH'}";
+ \@ENV{keys %old} = values %old;
}
EndOfCleanup
}
for (split m/^/m, $diag) {
print "# $_";
}
- print "\n" unless
+ print "\n" unless
$diag eq ''
or substr($diag, -1) eq "\n";
}
}
# We need an external program to call.
-my $ECHO = "./echo$$";
+my $ECHO = ($Is_MSWin32 ? ".\\echo$$" : "./echo$$");
END { unlink $ECHO }
open PROG, "> $ECHO" or die "Can't create $ECHO: $!";
print PROG 'print "@ARGV\n"', "\n";
close PROG;
my $echo = "$Invoke_Perl $ECHO";
-print "1..96\n";
+print "1..155\n";
# First, let's make sure that Perl is checking the dangerous
# environment variables. Maybe they aren't set yet, so we'll
{
$ENV{'DCL$PATH'} = '' if $Is_VMS;
- $ENV{PATH} = $TAINT;
- $ENV{IFS} = '';
- test 1, eval { `$echo 1` } eq '';
- test 2, $@ =~ /^Insecure \$ENV{PATH}/, $@;
-
$ENV{PATH} = '';
- $ENV{IFS} = $TAINT;
- test 3, eval { `$echo 1` } eq '';
- test 4, $@ =~ /^Insecure \$ENV{IFS}/, $@;
+ delete @ENV{@MoreEnv};
+ $ENV{TERM} = 'dumb';
- my ($tmp) = grep { (stat)[2] & 2 } '/tmp', '/var/tmp', '/usr/tmp';
- if ($tmp) {
- $ENV{PATH} = $tmp;
- test 5, eval { `$echo 1` } eq '';
- test 6, $@ =~ /^Insecure directory in \$ENV{PATH}/, $@;
+ test 1, eval { `$echo 1` } eq "1\n";
+
+ if ($Is_MSWin32 || $Is_VMS || $Is_Dos) {
+ print "# Environment tainting tests skipped\n";
+ for (2..5) { print "ok $_\n" }
+ }
+ else {
+ my @vars = ('PATH', @MoreEnv);
+ while (my $v = $vars[0]) {
+ local $ENV{$v} = $TAINT;
+ last if eval { `$echo 1` };
+ last unless $@ =~ /^Insecure \$ENV{$v}/;
+ shift @vars;
+ }
+ test 2, !@vars, "\$$vars[0]";
+
+ # tainted $TERM is unsafe only if it contains metachars
+ local $ENV{TERM};
+ $ENV{TERM} = 'e=mc2';
+ test 3, eval { `$echo 1` } eq "1\n";
+ $ENV{TERM} = 'e=mc2' . $TAINT;
+ test 4, eval { `$echo 1` } eq '';
+ test 5, $@ =~ /^Insecure \$ENV{TERM}/, $@;
+ }
+
+ my $tmp;
+ if ($^O eq 'os2' || $^O eq 'amigaos' || $Is_MSWin32 || $Is_Dos) {
+ print "# all directories are writeable\n";
}
else {
- print "# can't find writeable directory to test PATH tainting\n";
- for (5..6) { print "ok $_\n" }
+ $tmp = (grep { defined and -d and (stat _)[2] & 2 }
+ qw(sys$scratch /tmp /var/tmp /usr/tmp),
+ @ENV{qw(TMP TEMP)})[0]
+ or print "# can't find world-writeable directory to test PATH\n";
}
- $ENV{PATH} = '';
- $ENV{IFS} = '';
- test 7, eval { `$echo 1` } eq "1\n";
- test 8, $@ eq '', $@;
+ if ($tmp) {
+ local $ENV{PATH} = $tmp;
+ test 6, eval { `$echo 1` } eq '';
+ test 7, $@ =~ /^Insecure directory in \$ENV{PATH}/, $@;
+ }
+ else {
+ for (6..7) { print "ok $_ # Skipped: all directories are writeable\n" }
+ }
if ($Is_VMS) {
$ENV{'DCL$PATH'} = $TAINT;
- test 9, eval { `$echo 1` } eq '';
- test 10, $@ =~ /^Insecure \$ENV{DCL\$PATH}/, $@;
+ test 8, eval { `$echo 1` } eq '';
+ test 9, $@ =~ /^Insecure \$ENV{DCL\$PATH}/, $@;
+ if ($tmp) {
+ $ENV{'DCL$PATH'} = $tmp;
+ test 10, eval { `$echo 1` } eq '';
+ test 11, $@ =~ /^Insecure directory in \$ENV{DCL\$PATH}/, $@;
+ }
+ else {
+ for (10..11) { print "ok $_ # Skipped: can't find world-writeable directory to test DCL\$PATH\n" }
+ }
$ENV{'DCL$PATH'} = '';
}
else {
- print "# This is not VMS\n";
- for (9..10) { print "ok $_\n"; }
+ for (8..11) { print "ok $_ # Skipped: This is not VMS\n"; }
}
}
# Let's see that we can taint and untaint as needed.
{
my $foo = $TAINT;
- test 11, tainted $foo;
+ test 12, tainted $foo;
+
+ # That was a sanity check. If it failed, stop the insanity!
+ die "Taint checks don't seem to be enabled" unless tainted $foo;
$foo = "foo";
- test 12, not tainted $foo;
+ test 13, not tainted $foo;
taint_these($foo);
- test 13, tainted $foo;
+ test 14, tainted $foo;
my @list = 1..10;
- test 14, not any_tainted @list;
+ test 15, not any_tainted @list;
taint_these @list[1,3,5,7,9];
- test 15, any_tainted @list;
- test 16, all_tainted @list[1,3,5,7,9];
- test 17, not any_tainted @list[0,2,4,6,8];
+ test 16, any_tainted @list;
+ test 17, all_tainted @list[1,3,5,7,9];
+ test 18, not any_tainted @list[0,2,4,6,8];
($foo) = $foo =~ /(.+)/;
- test 18, not tainted $foo;
+ test 19, not tainted $foo;
$foo = $1 if ('bar' . $TAINT) =~ /(.+)/;
- test 19, not tainted $foo;
- test 20, $foo eq 'bar';
+ test 20, not tainted $foo;
+ test 21, $foo eq 'bar';
+
+ {
+ use re 'taint';
+
+ ($foo) = ('bar' . $TAINT) =~ /(.+)/;
+ test 22, tainted $foo;
+ test 23, $foo eq 'bar';
+
+ $foo = $1 if ('bar' . $TAINT) =~ /(.+)/;
+ test 24, tainted $foo;
+ test 25, $foo eq 'bar';
+ }
+
+ $foo = $1 if 'bar' =~ /(.+)$TAINT/;
+ test 26, tainted $foo;
+ test 27, $foo eq 'bar';
my $pi = 4 * atan2(1,1) + $TAINT0;
- test 21, tainted $pi;
+ test 28, tainted $pi;
($pi) = $pi =~ /(\d+\.\d+)/;
- test 22, not tainted $pi;
- test 23, sprintf("%.5f", $pi) eq '3.14159';
+ test 29, not tainted $pi;
+ test 30, sprintf("%.5f", $pi) eq '3.14159';
}
# How about command-line arguments? The problem is that we don't
};
close PROG;
print `$Invoke_Perl "-T" $arg and some suspect arguments`;
- test 24, !$?, "Exited with status $?";
+ test 31, !$?, "Exited with status $?";
unlink $arg;
}
# Reading from a file should be tainted
{
- my $file = './perl' . $Config{exe_ext};
- test 25, open(FILE, $file), "Couldn't open '$file': $!";
+ my $file = './TEST';
+ test 32, open(FILE, $file), "Couldn't open '$file': $!";
my $block;
sysread(FILE, $block, 100);
- my $line = <FILE>; # Should "work"
+ my $line = <FILE>;
close FILE;
- test 26, tainted $block;
- test 27, tainted $line;
+ test 33, tainted $block;
+ test 34, tainted $line;
}
-# Globs should be tainted.
-{
- my @globs = <*>;
- test 28, all_tainted @globs;
+# Globs should be forbidden, except under VMS,
+# which doesn't spawn an external program.
+if (1 # built-in glob
+ or $Is_VMS) {
+ for (35..36) { print "ok $_\n"; }
+}
+else {
+ my @globs = eval { <*> };
+ test 35, @globs == 0 && $@ =~ /^Insecure dependency/;
- @globs = glob '*';
- test 29, all_tainted @globs;
+ @globs = eval { glob '*' };
+ test 36, @globs == 0 && $@ =~ /^Insecure dependency/;
}
# Output of commands should be tainted
{
my $foo = `$echo abc`;
- test 30, tainted $foo;
+ test 37, tainted $foo;
}
# Certain system variables should be tainted
{
- test 31, all_tainted $^X, $0;
+ test 38, all_tainted $^X, $0;
}
# Results of matching should all be untainted
{
my $foo = "abcdefghi" . $TAINT;
- test 32, tainted $foo;
+ test 39, tainted $foo;
$foo =~ /def/;
- test 33, not any_tainted $`, $&, $';
+ test 40, not any_tainted $`, $&, $';
$foo =~ /(...)(...)(...)/;
- test 34, not any_tainted $1, $2, $3, $+;
+ test 41, not any_tainted $1, $2, $3, $+;
my @bar = $foo =~ /(...)(...)(...)/;
- test 35, not any_tainted @bar;
+ test 42, not any_tainted @bar;
- test 36, tainted $foo; # $foo should still be tainted!
- test 37, $foo eq "abcdefghi";
+ test 43, tainted $foo; # $foo should still be tainted!
+ test 44, $foo eq "abcdefghi";
}
# Operations which affect files can't use tainted data.
{
- test 38, eval { chmod 0, $TAINT } eq '', 'chmod';
- test 39, $@ =~ /^Insecure dependency/, $@;
+ test 45, eval { chmod 0, $TAINT } eq '', 'chmod';
+ test 46, $@ =~ /^Insecure dependency/, $@;
- test 40, eval { truncate 'NoSuChFiLe', $TAINT0 } eq '', 'truncate';
- test 41, $@ =~ /^Insecure dependency/, $@;
+ # There is no feature test in $Config{} for truncate,
+ # so we allow for the possibility that it's missing.
+ test 47, eval { truncate 'NoSuChFiLe', $TAINT0 } eq '', 'truncate';
+ test 48, $@ =~ /^(?:Insecure dependency|truncate not implemented)/, $@;
- test 42, eval { rename '', $TAINT } eq '', 'rename';
- test 43, $@ =~ /^Insecure dependency/, $@;
+ test 49, eval { rename '', $TAINT } eq '', 'rename';
+ test 50, $@ =~ /^Insecure dependency/, $@;
- test 44, eval { unlink $TAINT } eq '', 'unlink';
- test 45, $@ =~ /^Insecure dependency/, $@;
+ test 51, eval { unlink $TAINT } eq '', 'unlink';
+ test 52, $@ =~ /^Insecure dependency/, $@;
- test 46, eval { utime $TAINT } eq '', 'utime';
- test 47, $@ =~ /^Insecure dependency/, $@;
+ test 53, eval { utime $TAINT } eq '', 'utime';
+ test 54, $@ =~ /^Insecure dependency/, $@;
if ($Config{d_chown}) {
- test 48, eval { chown -1, -1, $TAINT } eq '', 'chown';
- test 49, $@ =~ /^Insecure dependency/, $@;
+ test 55, eval { chown -1, -1, $TAINT } eq '', 'chown';
+ test 56, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# chown() is not available\n";
- for (48..49) { print "ok $_\n" }
+ for (55..56) { print "ok $_ # Skipped: chown() is not available\n" }
}
if ($Config{d_link}) {
- test 50, eval { link $TAINT, '' } eq '', 'link';
- test 51, $@ =~ /^Insecure dependency/, $@;
+ test 57, eval { link $TAINT, '' } eq '', 'link';
+ test 58, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# link() is not available\n";
- for (50..51) { print "ok $_\n" }
+ for (57..58) { print "ok $_ # Skipped: link() is not available\n" }
}
if ($Config{d_symlink}) {
- test 52, eval { symlink $TAINT, '' } eq '', 'symlink';
- test 53, $@ =~ /^Insecure dependency/, $@;
+ test 59, eval { symlink $TAINT, '' } eq '', 'symlink';
+ test 60, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# symlink() is not available\n";
- for (52..53) { print "ok $_\n" }
+ for (59..60) { print "ok $_ # Skipped: symlink() is not available\n" }
}
}
# Operations which affect directories can't use tainted data.
{
- test 54, eval { mkdir $TAINT0, $TAINT } eq '', 'mkdir';
- test 55, $@ =~ /^Insecure dependency/, $@;
+ test 61, eval { mkdir $TAINT0, $TAINT } eq '', 'mkdir';
+ test 62, $@ =~ /^Insecure dependency/, $@;
- test 56, eval { rmdir $TAINT } eq '', 'rmdir';
- test 57, $@ =~ /^Insecure dependency/, $@;
+ test 63, eval { rmdir $TAINT } eq '', 'rmdir';
+ test 64, $@ =~ /^Insecure dependency/, $@;
- test 58, eval { chdir $TAINT } eq '', 'chdir';
- test 59, $@ =~ /^Insecure dependency/, $@;
+ test 65, eval { chdir $TAINT } eq '', 'chdir';
+ test 66, $@ =~ /^Insecure dependency/, $@;
if ($Config{d_chroot}) {
- test 60, eval { chroot $TAINT } eq '', 'chroot';
- test 61, $@ =~ /^Insecure dependency/, $@;
+ test 67, eval { chroot $TAINT } eq '', 'chroot';
+ test 68, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# chroot() is not available\n";
- for (60..61) { print "ok $_\n" }
+ for (67..68) { print "ok $_ # Skipped: chroot() is not available\n" }
}
}
# Some operations using files can't use tainted data.
{
my $foo = "imaginary library" . $TAINT;
- test 62, eval { require $foo } eq '', 'require';
- test 63, $@ =~ /^Insecure dependency/, $@;
+ test 69, eval { require $foo } eq '', 'require';
+ test 70, $@ =~ /^Insecure dependency/, $@;
my $filename = "./taintB$$"; # NB: $filename isn't tainted!
END { unlink $filename if defined $filename }
$foo = $filename . $TAINT;
unlink $filename; # in any case
- test 64, eval { open FOO, $foo } eq '', 'open for read';
- test 65, $@ eq '', $@; # NB: This should be allowed
- test 66, $! == 2; # File not found
+ test 71, eval { open FOO, $foo } eq '', 'open for read';
+ test 72, $@ eq '', $@; # NB: This should be allowed
+
+ # Try first new style but allow also old style.
+ test 73, $!{ENOENT} ||
+ $! == 2 || # File not found
+ ($Is_Dos && $! == 22) ||
+ ($^O eq 'mint' && $! == 33);
- test 67, eval { open FOO, "> $foo" } eq '', 'open for write';
- test 68, $@ =~ /^Insecure dependency/, $@;
+ test 74, eval { open FOO, "> $foo" } eq '', 'open for write';
+ test 75, $@ =~ /^Insecure dependency/, $@;
}
# Commands to the system can't use tainted data
my $foo = $TAINT;
if ($^O eq 'amigaos') {
- print "# open(\"|\") is not available\n";
- for (69..72) { print "ok $_\n" }
+ for (76..79) { print "ok $_ # Skipped: open('|') is not available\n" }
}
else {
- test 69, eval { open FOO, "| $foo" } eq '', 'popen to';
- test 70, $@ =~ /^Insecure dependency/, $@;
+ test 76, eval { open FOO, "| x$foo" } eq '', 'popen to';
+ test 77, $@ =~ /^Insecure dependency/, $@;
- test 71, eval { open FOO, "$foo |" } eq '', 'popen from';
- test 72, $@ =~ /^Insecure dependency/, $@;
+ test 78, eval { open FOO, "x$foo |" } eq '', 'popen from';
+ test 79, $@ =~ /^Insecure dependency/, $@;
}
- test 73, eval { exec $TAINT } eq '', 'exec';
- test 74, $@ =~ /^Insecure dependency/, $@;
+ test 80, eval { exec $TAINT } eq '', 'exec';
+ test 81, $@ =~ /^Insecure dependency/, $@;
- test 75, eval { system $TAINT } eq '', 'system';
- test 76, $@ =~ /^Insecure dependency/, $@;
+ test 82, eval { system $TAINT } eq '', 'system';
+ test 83, $@ =~ /^Insecure dependency/, $@;
$foo = "*";
taint_these $foo;
- test 77, eval { `$echo 1$foo` } eq '', 'backticks';
- test 78, $@ =~ /^Insecure dependency/, $@;
+ test 84, eval { `$echo 1$foo` } eq '', 'backticks';
+ test 85, $@ =~ /^Insecure dependency/, $@;
if ($Is_VMS) { # wildcard expansion doesn't invoke shell, so is safe
- test 79, join('', eval { glob $foo } ) ne '', 'globbing';
- test 80, $@ eq '', $@;
+ test 86, join('', eval { glob $foo } ) ne '', 'globbing';
+ test 87, $@ eq '', $@;
}
else {
- test 79, join('', eval { glob $foo } ) eq '', 'globbing';
- test 80, $@ =~ /^Insecure dependency/, $@;
+ for (86..87) { print "ok $_ # Skipped: this is not VMS\n"; }
}
}
# Operations which affect processes can't use tainted data.
{
- test 81, eval { kill 0, $TAINT } eq '', 'kill';
- test 82, $@ =~ /^Insecure dependency/, $@;
+ test 88, eval { kill 0, $TAINT } eq '', 'kill';
+ test 89, $@ =~ /^Insecure dependency/, $@;
if ($Config{d_setpgrp}) {
- test 83, eval { setpgrp 0, $TAINT } eq '', 'setpgrp';
- test 84, $@ =~ /^Insecure dependency/, $@;
+ test 90, eval { setpgrp 0, $TAINT } eq '', 'setpgrp';
+ test 91, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# setpgrp() is not available\n";
- for (83..84) { print "ok $_\n" }
+ for (90..91) { print "ok $_ # Skipped: setpgrp() is not available\n" }
}
if ($Config{d_setprior}) {
- test 85, eval { setpriority 0, $TAINT, $TAINT } eq '', 'setpriority';
- test 86, $@ =~ /^Insecure dependency/, $@;
+ test 92, eval { setpriority 0, $TAINT, $TAINT } eq '', 'setpriority';
+ test 93, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# setpriority() is not available\n";
- for (85..86) { print "ok $_\n" }
+ for (92..93) { print "ok $_ # Skipped: setpriority() is not available\n" }
}
}
# Some miscellaneous operations can't use tainted data.
{
if ($Config{d_syscall}) {
- test 87, eval { syscall $TAINT } eq '', 'syscall';
- test 88, $@ =~ /^Insecure dependency/, $@;
+ test 94, eval { syscall $TAINT } eq '', 'syscall';
+ test 95, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# syscall() is not available\n";
- for (87..88) { print "ok $_\n" }
+ for (94..95) { print "ok $_ # Skipped: syscall() is not available\n" }
}
{
local *FOO;
my $temp = "./taintC$$";
END { unlink $temp }
- test 89, open(FOO, "> $temp"), "Couldn't open $temp for write: $!";
+ test 96, open(FOO, "> $temp"), "Couldn't open $temp for write: $!";
- test 90, eval { ioctl FOO, $TAINT, $foo } eq '', 'ioctl';
- test 91, $@ =~ /^Insecure dependency/, $@;
+ test 97, eval { ioctl FOO, $TAINT, $foo } eq '', 'ioctl';
+ test 98, $@ =~ /^Insecure dependency/, $@;
if ($Config{d_fcntl}) {
- test 92, eval { fcntl FOO, $TAINT, $foo } eq '', 'fcntl';
- test 93, $@ =~ /^Insecure dependency/, $@;
+ test 99, eval { fcntl FOO, $TAINT, $foo } eq '', 'fcntl';
+ test 100, $@ =~ /^Insecure dependency/, $@;
}
else {
- print "# fcntl() is not available\n";
- for (92..93) { print "ok $_\n" }
+ for (99..100) { print "ok $_ # Skipped: fcntl() is not available\n" }
}
close FOO;
}
}
-# Some tests involving references
+# Some tests involving references
{
my $foo = 'abc' . $TAINT;
my $fooref = \$foo;
- test 94, not tainted $fooref;
- test 95, tainted $$fooref;
- test 96, tainted $foo;
+ test 101, not tainted $fooref;
+ test 102, tainted $$fooref;
+ test 103, tainted $foo;
}
+
+# Some tests involving assignment
+{
+ my $foo = $TAINT0;
+ my $bar = $foo;
+ test 104, all_tainted $foo, $bar;
+ test 105, tainted($foo = $bar);
+ test 106, tainted($bar = $bar);
+ test 107, tainted($bar += $bar);
+ test 108, tainted($bar -= $bar);
+ test 109, tainted($bar *= $bar);
+ test 110, tainted($bar++);
+ test 111, tainted($bar /= $bar);
+ test 112, tainted($bar += 0);
+ test 113, tainted($bar -= 2);
+ test 114, tainted($bar *= -1);
+ test 115, tainted($bar /= 1);
+ test 116, tainted($bar--);
+ test 117, $bar == 0;
+}
+
+# Test assignment and return of lists
+{
+ my @foo = ("A", "tainted" . $TAINT, "B");
+ test 118, not tainted $foo[0];
+ test 119, tainted $foo[1];
+ test 120, not tainted $foo[2];
+ my @bar = @foo;
+ test 121, not tainted $bar[0];
+ test 122, tainted $bar[1];
+ test 123, not tainted $bar[2];
+ my @baz = eval { "A", "tainted" . $TAINT, "B" };
+ test 124, not tainted $baz[0];
+ test 125, tainted $baz[1];
+ test 126, not tainted $baz[2];
+ my @plugh = eval q[ "A", "tainted" . $TAINT, "B" ];
+ test 127, not tainted $plugh[0];
+ test 128, tainted $plugh[1];
+ test 129, not tainted $plugh[2];
+ my $nautilus = sub { "A", "tainted" . $TAINT, "B" };
+ test 130, not tainted ((&$nautilus)[0]);
+ test 131, tainted ((&$nautilus)[1]);
+ test 132, not tainted ((&$nautilus)[2]);
+ my @xyzzy = &$nautilus;
+ test 133, not tainted $xyzzy[0];
+ test 134, tainted $xyzzy[1];
+ test 135, not tainted $xyzzy[2];
+ my $red_october = sub { return "A", "tainted" . $TAINT, "B" };
+ test 136, not tainted ((&$red_october)[0]);
+ test 137, tainted ((&$red_october)[1]);
+ test 138, not tainted ((&$red_october)[2]);
+ my @corge = &$red_october;
+ test 139, not tainted $corge[0];
+ test 140, tainted $corge[1];
+ test 141, not tainted $corge[2];
+}
+
+# Test for system/library calls returning string data of dubious origin.
+{
+ # No reliable %Config check for getpw*
+ if (eval { setpwent(); getpwent(); 1 }) {
+ setpwent();
+ my @getpwent = getpwent();
+ die "getpwent: $!\n" unless (@getpwent);
+ test 142,( not tainted $getpwent[0]
+ and tainted $getpwent[1]
+ and not tainted $getpwent[2]
+ and not tainted $getpwent[3]
+ and not tainted $getpwent[4]
+ and not tainted $getpwent[5]
+ and tainted $getpwent[6] # ge?cos
+ and not tainted $getpwent[7]
+ and tainted $getpwent[8]); # shell
+ endpwent();
+ } else {
+ for (142) { print "ok $_ # Skipped: getpwent() is not available\n" }
+ }
+
+ if ($Config{d_readdir}) { # pretty hard to imagine not
+ local(*D);
+ opendir(D, "op") or die "opendir: $!\n";
+ my $readdir = readdir(D);
+ test 143, tainted $readdir;
+ closedir(OP);
+ } else {
+ for (143) { print "ok $_ # Skipped: readdir() is not available\n" }
+ }
+
+ if ($Config{d_readlink} && $Config{d_symlink}) {
+ my $symlink = "sl$$";
+ unlink($symlink);
+ symlink("/something/naughty", $symlink) or die "symlink: $!\n";
+ my $readlink = readlink($symlink);
+ test 144, tainted $readlink;
+ unlink($symlink);
+ } else {
+ for (144) { print "ok $_ # Skipped: readlink() or symlink() is not available\n"; }
+ }
+}
+
+# test bitwise ops (regression bug)
+{
+ my $why = "y";
+ my $j = "x" | $why;
+ test 145, not tainted $j;
+ $why = $TAINT."y";
+ $j = "x" | $why;
+ test 146, tainted $j;
+}
+
+# test target of substitution (regression bug)
+{
+ my $why = $TAINT."y";
+ $why =~ s/y/z/;
+ test 147, tainted $why;
+
+ my $z = "[z]";
+ $why =~ s/$z/zee/;
+ test 148, tainted $why;
+
+ $why =~ s/e/'-'.$$/ge;
+ test 149, tainted $why;
+}
+
+# test shmread
+{
+ unless ($ipcsysv) {
+ print "ok 150 # skipped: no IPC::SysV\n";
+ last;
+ }
+ if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_shm}) {
+ no strict 'subs';
+ my $sent = "foobar";
+ my $rcvd;
+ my $size = 2000;
+ my $id = shmget(IPC_PRIVATE, $size, S_IRWXU);
+
+ if (defined $id) {
+ if (shmwrite($id, $sent, 0, 60)) {
+ if (shmread($id, $rcvd, 0, 60)) {
+ substr($rcvd, index($rcvd, "\0")) = '';
+ } else {
+ warn "# shmread failed: $!\n";
+ }
+ } else {
+ warn "# shmwrite failed: $!\n";
+ }
+ shmctl($id, IPC_RMID, 0) or warn "# shmctl failed: $!\n";
+ } else {
+ warn "# shmget failed: $!\n";
+ }
+
+ if ($rcvd eq $sent) {
+ test 150, tainted $rcvd;
+ } else {
+ print "ok 150 # Skipped: SysV shared memory operation failed\n";
+ }
+ } else {
+ print "ok 150 # Skipped: SysV shared memory is not available\n";
+ }
+}
+
+# test msgrcv
+{
+ unless ($ipcsysv) {
+ print "ok 151 # skipped: no IPC::SysV\n";
+ last;
+ }
+ if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_msg}) {
+ no strict 'subs';
+ my $id = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU);
+
+ my $sent = "message";
+ my $type_sent = 1234;
+ my $rcvd;
+ my $type_rcvd;
+
+ if (defined $id) {
+ if (msgsnd($id, pack("l! a*", $type_sent, $sent), 0)) {
+ if (msgrcv($id, $rcvd, 60, 0, 0)) {
+ ($type_rcvd, $rcvd) = unpack("l! a*", $rcvd);
+ } else {
+ warn "# msgrcv failed\n";
+ }
+ } else {
+ warn "# msgsnd failed\n";
+ }
+ msgctl($id, IPC_RMID, 0) or warn "# msgctl failed: $!\n";
+ } else {
+ warn "# msgget failed\n";
+ }
+
+ if ($rcvd eq $sent && $type_sent == $type_rcvd) {
+ test 151, tainted $rcvd;
+ } else {
+ print "ok 151 # Skipped: SysV message queue operation failed\n";
+ }
+ } else {
+ print "ok 151 # Skipped: SysV message queues are not available\n";
+ }
+}
+
+{
+ # bug id 20001004.006
+
+ open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ;
+ local $/;
+ my $a = <IN>;
+ my $b = <IN>;
+ print "not " unless tainted($a) && tainted($b) && !defined($b);
+ print "ok 152\n";
+ close IN;
+}
+
+{
+ # bug id 20001004.007
+
+ open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ;
+ my $a = <IN>;
+
+ my $c = { a => 42,
+ b => $a };
+ print "not " unless !tainted($c->{a}) && tainted($c->{b});
+ print "ok 153\n";
+
+ my $d = { a => $a,
+ b => 42 };
+ print "not " unless tainted($d->{a}) && !tainted($d->{b});
+ print "ok 154\n";
+
+ my $e = { a => 42,
+ b => { c => $a, d => 42 } };
+ print "not " unless !tainted($e->{a}) &&
+ !tainted($e->{b}) &&
+ tainted($e->{b}->{c}) &&
+ !tainted($e->{b}->{d});
+ print "ok 155\n";
+
+ close IN;
+}
+
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