Commit | Line | Data |
---|---|---|
1e422769 | 1 | #!./perl -T |
2 | # | |
3 | # Taint tests by Tom Phoenix <rootbeer@teleport.com>. | |
4 | # | |
5 | # I don't claim to know all about tainting. If anyone sees | |
9607fc9c | 6 | # tests that I've missed here, please add them. But this is |
1e422769 | 7 | # better than having no tests at all, right? |
8 | # | |
9 | ||
10 | BEGIN { | |
11 | chdir 't' if -d 't'; | |
12 | @INC = '../lib' if -d '../lib'; | |
13 | } | |
14 | ||
15 | use strict; | |
16 | use Config; | |
17 | ||
18 | my $Is_VMS = $^O eq 'VMS'; | |
68dc0745 | 19 | my $Is_MSWin32 = $^O eq 'MSWin32'; |
39e571d4 | 20 | my $Is_Dos = $^O eq 'dos'; |
68dc0745 | 21 | my $Invoke_Perl = $Is_VMS ? 'MCR Sys$Disk:[]Perl.' : |
22 | $Is_MSWin32 ? '.\perl' : './perl'; | |
c90c0ff4 | 23 | my @MoreEnv = qw/IFS CDPATH ENV BASH_ENV/; |
7bac28a0 | 24 | |
1e422769 | 25 | if ($Is_VMS) { |
7bac28a0 | 26 | my (%old, $x); |
27 | for $x ('DCL$PATH', @MoreEnv) { | |
28 | ($old{$x}) = $ENV{$x} =~ /^(.*)$/ if exists $ENV{$x}; | |
29 | } | |
1e422769 | 30 | eval <<EndOfCleanup; |
31 | END { | |
32 | \$ENV{PATH} = ''; | |
33 | warn "# Note: logical name 'PATH' may have been deleted\n"; | |
7bac28a0 | 34 | @ENV{keys %old} = values %old; |
1e422769 | 35 | } |
36 | EndOfCleanup | |
37 | } | |
38 | ||
39 | # Sources of taint: | |
40 | # The empty tainted value, for tainting strings | |
41 | my $TAINT = substr($^X, 0, 0); | |
42 | # A tainted zero, useful for tainting numbers | |
43 | my $TAINT0 = 0 + $TAINT; | |
44 | ||
45 | # This taints each argument passed. All must be lvalues. | |
46 | # Side effect: It also stringifies them. :-( | |
47 | sub taint_these (@) { | |
48 | for (@_) { $_ .= $TAINT } | |
49 | } | |
50 | ||
51 | # How to identify taint when you see it | |
52 | sub any_tainted (@) { | |
53 | not eval { join("",@_), kill 0; 1 }; | |
54 | } | |
55 | sub tainted ($) { | |
56 | any_tainted @_; | |
57 | } | |
58 | sub all_tainted (@) { | |
59 | for (@_) { return 0 unless tainted $_ } | |
60 | 1; | |
61 | } | |
62 | ||
63 | sub test ($$;$) { | |
64 | my($serial, $boolean, $diag) = @_; | |
65 | if ($boolean) { | |
66 | print "ok $serial\n"; | |
67 | } else { | |
68 | print "not ok $serial\n"; | |
69 | for (split m/^/m, $diag) { | |
70 | print "# $_"; | |
71 | } | |
9607fc9c | 72 | print "\n" unless |
1e422769 | 73 | $diag eq '' |
74 | or substr($diag, -1) eq "\n"; | |
75 | } | |
76 | } | |
77 | ||
78 | # We need an external program to call. | |
5aabfad6 | 79 | my $ECHO = ($Is_MSWin32 ? ".\\echo$$" : "./echo$$"); |
1e422769 | 80 | END { unlink $ECHO } |
81 | open PROG, "> $ECHO" or die "Can't create $ECHO: $!"; | |
82 | print PROG 'print "@ARGV\n"', "\n"; | |
83 | close PROG; | |
84 | my $echo = "$Invoke_Perl $ECHO"; | |
85 | ||
48c036b1 | 86 | print "1..145\n"; |
1e422769 | 87 | |
88 | # First, let's make sure that Perl is checking the dangerous | |
89 | # environment variables. Maybe they aren't set yet, so we'll | |
90 | # taint them ourselves. | |
91 | { | |
92 | $ENV{'DCL$PATH'} = '' if $Is_VMS; | |
93 | ||
7bac28a0 | 94 | $ENV{PATH} = ''; |
c90c0ff4 | 95 | delete @ENV{@MoreEnv}; |
7bac28a0 | 96 | $ENV{TERM} = 'dumb'; |
97 | ||
98 | test 1, eval { `$echo 1` } eq "1\n"; | |
99 | ||
39e571d4 | 100 | if ($Is_MSWin32 || $Is_VMS || $Is_Dos) { |
7bac28a0 | 101 | print "# Environment tainting tests skipped\n"; |
c90c0ff4 | 102 | for (2..5) { print "ok $_\n" } |
5aabfad6 | 103 | } |
104 | else { | |
7bac28a0 | 105 | my @vars = ('PATH', @MoreEnv); |
106 | while (my $v = $vars[0]) { | |
107 | local $ENV{$v} = $TAINT; | |
108 | last if eval { `$echo 1` }; | |
109 | last unless $@ =~ /^Insecure \$ENV{$v}/; | |
110 | shift @vars; | |
111 | } | |
112 | test 2, !@vars, "\$$vars[0]"; | |
c90c0ff4 | 113 | |
114 | # tainted $TERM is unsafe only if it contains metachars | |
115 | local $ENV{TERM}; | |
116 | $ENV{TERM} = 'e=mc2'; | |
117 | test 3, eval { `$echo 1` } eq "1\n"; | |
118 | $ENV{TERM} = 'e=mc2' . $TAINT; | |
119 | test 4, eval { `$echo 1` } eq ''; | |
120 | test 5, $@ =~ /^Insecure \$ENV{TERM}/, $@; | |
5aabfad6 | 121 | } |
7bac28a0 | 122 | |
9607fc9c | 123 | my $tmp; |
48c036b1 GS |
124 | if ($^O eq 'os2' || $^O eq 'amigaos' || $Is_MSWin32 || $Is_Dos) { |
125 | print "# all directories are writeable\n"; | |
126 | } | |
127 | else { | |
9607fc9c | 128 | $tmp = (grep { defined and -d and (stat _)[2] & 2 } |
129 | qw(/tmp /var/tmp /usr/tmp /sys$scratch), | |
130 | @ENV{qw(TMP TEMP)})[0] | |
131 | or print "# can't find world-writeable directory to test PATH\n"; | |
132 | } | |
133 | ||
385588b3 | 134 | if ($tmp) { |
7bac28a0 | 135 | local $ENV{PATH} = $tmp; |
c90c0ff4 | 136 | test 6, eval { `$echo 1` } eq ''; |
137 | test 7, $@ =~ /^Insecure directory in \$ENV{PATH}/, $@; | |
1e422769 | 138 | } |
139 | else { | |
fac76ed7 | 140 | for (6..7) { print "ok $_ # Skipped: all directories are writeable\n" } |
1e422769 | 141 | } |
142 | ||
1e422769 | 143 | if ($Is_VMS) { |
144 | $ENV{'DCL$PATH'} = $TAINT; | |
c90c0ff4 | 145 | test 8, eval { `$echo 1` } eq ''; |
146 | test 9, $@ =~ /^Insecure \$ENV{DCL\$PATH}/, $@; | |
9607fc9c | 147 | if ($tmp) { |
148 | $ENV{'DCL$PATH'} = $tmp; | |
c90c0ff4 | 149 | test 10, eval { `$echo 1` } eq ''; |
150 | test 11, $@ =~ /^Insecure directory in \$ENV{DCL\$PATH}/, $@; | |
9607fc9c | 151 | } |
152 | else { | |
fac76ed7 | 153 | for (10..11) { print "ok $_ # Skipped: can't find world-writeable directory to test DCL\$PATH\n" } |
9607fc9c | 154 | } |
1e422769 | 155 | $ENV{'DCL$PATH'} = ''; |
156 | } | |
157 | else { | |
fac76ed7 | 158 | for (8..11) { print "ok $_ # Skipped: This is not VMS\n"; } |
1e422769 | 159 | } |
160 | } | |
161 | ||
162 | # Let's see that we can taint and untaint as needed. | |
163 | { | |
164 | my $foo = $TAINT; | |
c90c0ff4 | 165 | test 12, tainted $foo; |
9607fc9c | 166 | |
167 | # That was a sanity check. If it failed, stop the insanity! | |
168 | die "Taint checks don't seem to be enabled" unless tainted $foo; | |
1e422769 | 169 | |
170 | $foo = "foo"; | |
c90c0ff4 | 171 | test 13, not tainted $foo; |
1e422769 | 172 | |
173 | taint_these($foo); | |
c90c0ff4 | 174 | test 14, tainted $foo; |
1e422769 | 175 | |
176 | my @list = 1..10; | |
c90c0ff4 | 177 | test 15, not any_tainted @list; |
1e422769 | 178 | taint_these @list[1,3,5,7,9]; |
c90c0ff4 | 179 | test 16, any_tainted @list; |
180 | test 17, all_tainted @list[1,3,5,7,9]; | |
181 | test 18, not any_tainted @list[0,2,4,6,8]; | |
1e422769 | 182 | |
183 | ($foo) = $foo =~ /(.+)/; | |
c90c0ff4 | 184 | test 19, not tainted $foo; |
1e422769 | 185 | |
186 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/; | |
c90c0ff4 | 187 | test 20, not tainted $foo; |
188 | test 21, $foo eq 'bar'; | |
1e422769 | 189 | |
48c036b1 GS |
190 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/t; |
191 | test 22, tainted $foo; | |
192 | test 23, $foo eq 'bar'; | |
193 | ||
1e422769 | 194 | my $pi = 4 * atan2(1,1) + $TAINT0; |
48c036b1 | 195 | test 24, tainted $pi; |
1e422769 | 196 | |
197 | ($pi) = $pi =~ /(\d+\.\d+)/; | |
48c036b1 GS |
198 | test 25, not tainted $pi; |
199 | test 26, sprintf("%.5f", $pi) eq '3.14159'; | |
1e422769 | 200 | } |
201 | ||
202 | # How about command-line arguments? The problem is that we don't | |
203 | # always get some, so we'll run another process with some. | |
204 | { | |
205 | my $arg = "./arg$$"; | |
206 | open PROG, "> $arg" or die "Can't create $arg: $!"; | |
207 | print PROG q{ | |
208 | eval { join('', @ARGV), kill 0 }; | |
209 | exit 0 if $@ =~ /^Insecure dependency/; | |
210 | print "# Oops: \$@ was [$@]\n"; | |
211 | exit 1; | |
212 | }; | |
213 | close PROG; | |
214 | print `$Invoke_Perl "-T" $arg and some suspect arguments`; | |
48c036b1 | 215 | test 27, !$?, "Exited with status $?"; |
1e422769 | 216 | unlink $arg; |
217 | } | |
218 | ||
219 | # Reading from a file should be tainted | |
220 | { | |
9607fc9c | 221 | my $file = './TEST'; |
48c036b1 | 222 | test 28, open(FILE, $file), "Couldn't open '$file': $!"; |
1e422769 | 223 | |
224 | my $block; | |
225 | sysread(FILE, $block, 100); | |
9607fc9c | 226 | my $line = <FILE>; |
1e422769 | 227 | close FILE; |
48c036b1 GS |
228 | test 29, tainted $block; |
229 | test 30, tainted $line; | |
1e422769 | 230 | } |
231 | ||
c90c0ff4 | 232 | # Globs should be forbidden, except under VMS, |
233 | # which doesn't spawn an external program. | |
234 | if ($Is_VMS) { | |
b2b3adea | 235 | for (31..32) { print "ok $_\n"; } |
c90c0ff4 | 236 | } |
237 | else { | |
7bac28a0 | 238 | my @globs = eval { <*> }; |
48c036b1 | 239 | test 31, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 | 240 | |
7bac28a0 | 241 | @globs = eval { glob '*' }; |
48c036b1 | 242 | test 32, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 | 243 | } |
244 | ||
245 | # Output of commands should be tainted | |
246 | { | |
247 | my $foo = `$echo abc`; | |
48c036b1 | 248 | test 33, tainted $foo; |
1e422769 | 249 | } |
250 | ||
251 | # Certain system variables should be tainted | |
252 | { | |
48c036b1 | 253 | test 34, all_tainted $^X, $0; |
1e422769 | 254 | } |
255 | ||
256 | # Results of matching should all be untainted | |
257 | { | |
258 | my $foo = "abcdefghi" . $TAINT; | |
48c036b1 | 259 | test 35, tainted $foo; |
1e422769 | 260 | |
261 | $foo =~ /def/; | |
48c036b1 | 262 | test 36, not any_tainted $`, $&, $'; |
1e422769 | 263 | |
264 | $foo =~ /(...)(...)(...)/; | |
48c036b1 | 265 | test 37, not any_tainted $1, $2, $3, $+; |
1e422769 | 266 | |
267 | my @bar = $foo =~ /(...)(...)(...)/; | |
48c036b1 | 268 | test 38, not any_tainted @bar; |
1e422769 | 269 | |
48c036b1 GS |
270 | test 39, tainted $foo; # $foo should still be tainted! |
271 | test 40, $foo eq "abcdefghi"; | |
1e422769 | 272 | } |
273 | ||
274 | # Operations which affect files can't use tainted data. | |
275 | { | |
48c036b1 GS |
276 | test 41, eval { chmod 0, $TAINT } eq '', 'chmod'; |
277 | test 42, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 278 | |
9607fc9c | 279 | # There is no feature test in $Config{} for truncate, |
280 | # so we allow for the possibility that it's missing. | |
48c036b1 GS |
281 | test 43, eval { truncate 'NoSuChFiLe', $TAINT0 } eq '', 'truncate'; |
282 | test 44, $@ =~ /^(?:Insecure dependency|truncate not implemented)/, $@; | |
1e422769 | 283 | |
48c036b1 | 284 | test 45, eval { rename '', $TAINT } eq '', 'rename'; |
c90c0ff4 | 285 | test 46, $@ =~ /^Insecure dependency/, $@; |
1e422769 | 286 | |
48c036b1 | 287 | test 47, eval { unlink $TAINT } eq '', 'unlink'; |
c90c0ff4 | 288 | test 48, $@ =~ /^Insecure dependency/, $@; |
9607fc9c | 289 | |
48c036b1 GS |
290 | test 49, eval { utime $TAINT } eq '', 'utime'; |
291 | test 50, $@ =~ /^Insecure dependency/, $@; | |
292 | ||
1e422769 | 293 | if ($Config{d_chown}) { |
48c036b1 GS |
294 | test 51, eval { chown -1, -1, $TAINT } eq '', 'chown'; |
295 | test 52, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 296 | } |
297 | else { | |
48c036b1 | 298 | for (51..52) { print "ok $_ # Skipped: chown() is not available\n" } |
1e422769 | 299 | } |
300 | ||
301 | if ($Config{d_link}) { | |
48c036b1 GS |
302 | test 53, eval { link $TAINT, '' } eq '', 'link'; |
303 | test 54, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 304 | } |
305 | else { | |
48c036b1 | 306 | for (53..54) { print "ok $_ # Skipped: link() is not available\n" } |
1e422769 | 307 | } |
308 | ||
309 | if ($Config{d_symlink}) { | |
48c036b1 GS |
310 | test 55, eval { symlink $TAINT, '' } eq '', 'symlink'; |
311 | test 56, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 312 | } |
313 | else { | |
48c036b1 | 314 | for (55..56) { print "ok $_ # Skipped: symlink() is not available\n" } |
1e422769 | 315 | } |
316 | } | |
317 | ||
318 | # Operations which affect directories can't use tainted data. | |
319 | { | |
48c036b1 | 320 | test 57, eval { mkdir $TAINT0, $TAINT } eq '', 'mkdir'; |
c90c0ff4 | 321 | test 58, $@ =~ /^Insecure dependency/, $@; |
1e422769 | 322 | |
48c036b1 | 323 | test 59, eval { rmdir $TAINT } eq '', 'rmdir'; |
c90c0ff4 | 324 | test 60, $@ =~ /^Insecure dependency/, $@; |
9607fc9c | 325 | |
48c036b1 GS |
326 | test 61, eval { chdir $TAINT } eq '', 'chdir'; |
327 | test 62, $@ =~ /^Insecure dependency/, $@; | |
328 | ||
1e422769 | 329 | if ($Config{d_chroot}) { |
48c036b1 GS |
330 | test 63, eval { chroot $TAINT } eq '', 'chroot'; |
331 | test 64, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 332 | } |
333 | else { | |
48c036b1 | 334 | for (63..64) { print "ok $_ # Skipped: chroot() is not available\n" } |
1e422769 | 335 | } |
336 | } | |
337 | ||
338 | # Some operations using files can't use tainted data. | |
339 | { | |
340 | my $foo = "imaginary library" . $TAINT; | |
48c036b1 GS |
341 | test 65, eval { require $foo } eq '', 'require'; |
342 | test 66, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 343 | |
344 | my $filename = "./taintB$$"; # NB: $filename isn't tainted! | |
345 | END { unlink $filename if defined $filename } | |
346 | $foo = $filename . $TAINT; | |
347 | unlink $filename; # in any case | |
348 | ||
48c036b1 GS |
349 | test 67, eval { open FOO, $foo } eq '', 'open for read'; |
350 | test 68, $@ eq '', $@; # NB: This should be allowed | |
87205358 | 351 | test 69, $! == 2 || ($Is_Dos && $! == 22); # File not found |
1e422769 | 352 | |
48c036b1 GS |
353 | test 70, eval { open FOO, "> $foo" } eq '', 'open for write'; |
354 | test 71, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 355 | } |
356 | ||
357 | # Commands to the system can't use tainted data | |
358 | { | |
359 | my $foo = $TAINT; | |
360 | ||
361 | if ($^O eq 'amigaos') { | |
48c036b1 | 362 | for (72..75) { print "ok $_ # Skipped: open('|') is not available\n" } |
1e422769 | 363 | } |
364 | else { | |
48c036b1 | 365 | test 72, eval { open FOO, "| $foo" } eq '', 'popen to'; |
c90c0ff4 | 366 | test 73, $@ =~ /^Insecure dependency/, $@; |
1e422769 | 367 | |
48c036b1 GS |
368 | test 74, eval { open FOO, "$foo |" } eq '', 'popen from'; |
369 | test 75, $@ =~ /^Insecure dependency/, $@; | |
370 | } | |
1e422769 | 371 | |
48c036b1 | 372 | test 76, eval { exec $TAINT } eq '', 'exec'; |
c90c0ff4 | 373 | test 77, $@ =~ /^Insecure dependency/, $@; |
9607fc9c | 374 | |
48c036b1 GS |
375 | test 78, eval { system $TAINT } eq '', 'system'; |
376 | test 79, $@ =~ /^Insecure dependency/, $@; | |
377 | ||
1e422769 | 378 | $foo = "*"; |
379 | taint_these $foo; | |
380 | ||
48c036b1 GS |
381 | test 80, eval { `$echo 1$foo` } eq '', 'backticks'; |
382 | test 81, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 383 | |
384 | if ($Is_VMS) { # wildcard expansion doesn't invoke shell, so is safe | |
48c036b1 GS |
385 | test 82, join('', eval { glob $foo } ) ne '', 'globbing'; |
386 | test 83, $@ eq '', $@; | |
1e422769 | 387 | } |
388 | else { | |
48c036b1 | 389 | for (82..83) { print "ok $_ # Skipped: this is not VMS\n"; } |
1e422769 | 390 | } |
391 | } | |
392 | ||
393 | # Operations which affect processes can't use tainted data. | |
394 | { | |
48c036b1 GS |
395 | test 84, eval { kill 0, $TAINT } eq '', 'kill'; |
396 | test 85, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 397 | |
398 | if ($Config{d_setpgrp}) { | |
48c036b1 GS |
399 | test 86, eval { setpgrp 0, $TAINT } eq '', 'setpgrp'; |
400 | test 87, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 401 | } |
402 | else { | |
48c036b1 | 403 | for (86..87) { print "ok $_ # Skipped: setpgrp() is not available\n" } |
1e422769 | 404 | } |
405 | ||
406 | if ($Config{d_setprior}) { | |
48c036b1 GS |
407 | test 88, eval { setpriority 0, $TAINT, $TAINT } eq '', 'setpriority'; |
408 | test 89, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 409 | } |
410 | else { | |
48c036b1 | 411 | for (88..89) { print "ok $_ # Skipped: setpriority() is not available\n" } |
1e422769 | 412 | } |
413 | } | |
414 | ||
415 | # Some miscellaneous operations can't use tainted data. | |
416 | { | |
417 | if ($Config{d_syscall}) { | |
48c036b1 GS |
418 | test 90, eval { syscall $TAINT } eq '', 'syscall'; |
419 | test 91, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 420 | } |
421 | else { | |
48c036b1 | 422 | for (90..91) { print "ok $_ # Skipped: syscall() is not available\n" } |
1e422769 | 423 | } |
424 | ||
425 | { | |
426 | my $foo = "x" x 979; | |
427 | taint_these $foo; | |
428 | local *FOO; | |
429 | my $temp = "./taintC$$"; | |
430 | END { unlink $temp } | |
48c036b1 | 431 | test 92, open(FOO, "> $temp"), "Couldn't open $temp for write: $!"; |
1e422769 | 432 | |
48c036b1 GS |
433 | test 93, eval { ioctl FOO, $TAINT, $foo } eq '', 'ioctl'; |
434 | test 94, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 435 | |
436 | if ($Config{d_fcntl}) { | |
48c036b1 GS |
437 | test 95, eval { fcntl FOO, $TAINT, $foo } eq '', 'fcntl'; |
438 | test 96, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 439 | } |
440 | else { | |
48c036b1 | 441 | for (95..96) { print "ok $_ # Skipped: fcntl() is not available\n" } |
1e422769 | 442 | } |
443 | ||
444 | close FOO; | |
445 | } | |
446 | } | |
447 | ||
9607fc9c | 448 | # Some tests involving references |
1e422769 | 449 | { |
450 | my $foo = 'abc' . $TAINT; | |
451 | my $fooref = \$foo; | |
48c036b1 GS |
452 | test 97, not tainted $fooref; |
453 | test 98, tainted $$fooref; | |
454 | test 99, tainted $foo; | |
1e422769 | 455 | } |
54310121 | 456 | |
457 | # Some tests involving assignment | |
458 | { | |
459 | my $foo = $TAINT0; | |
460 | my $bar = $foo; | |
48c036b1 GS |
461 | test 100, all_tainted $foo, $bar; |
462 | test 101, tainted($foo = $bar); | |
463 | test 102, tainted($bar = $bar); | |
464 | test 103, tainted($bar += $bar); | |
465 | test 104, tainted($bar -= $bar); | |
466 | test 105, tainted($bar *= $bar); | |
467 | test 106, tainted($bar++); | |
468 | test 107, tainted($bar /= $bar); | |
469 | test 108, tainted($bar += 0); | |
470 | test 109, tainted($bar -= 2); | |
471 | test 110, tainted($bar *= -1); | |
472 | test 111, tainted($bar /= 1); | |
473 | test 112, tainted($bar--); | |
474 | test 113, $bar == 0; | |
54310121 | 475 | } |
a1f49e72 CS |
476 | |
477 | # Test assignment and return of lists | |
478 | { | |
479 | my @foo = ("A", "tainted" . $TAINT, "B"); | |
48c036b1 GS |
480 | test 114, not tainted $foo[0]; |
481 | test 115, tainted $foo[1]; | |
482 | test 116, not tainted $foo[2]; | |
a1f49e72 | 483 | my @bar = @foo; |
48c036b1 GS |
484 | test 117, not tainted $bar[0]; |
485 | test 118, tainted $bar[1]; | |
486 | test 119, not tainted $bar[2]; | |
a1f49e72 | 487 | my @baz = eval { "A", "tainted" . $TAINT, "B" }; |
48c036b1 GS |
488 | test 120, not tainted $baz[0]; |
489 | test 121, tainted $baz[1]; | |
490 | test 122, not tainted $baz[2]; | |
a1f49e72 | 491 | my @plugh = eval q[ "A", "tainted" . $TAINT, "B" ]; |
48c036b1 GS |
492 | test 123, not tainted $plugh[0]; |
493 | test 124, tainted $plugh[1]; | |
494 | test 125, not tainted $plugh[2]; | |
a1f49e72 | 495 | my $nautilus = sub { "A", "tainted" . $TAINT, "B" }; |
48c036b1 GS |
496 | test 126, not tainted ((&$nautilus)[0]); |
497 | test 127, tainted ((&$nautilus)[1]); | |
498 | test 128, not tainted ((&$nautilus)[2]); | |
a1f49e72 | 499 | my @xyzzy = &$nautilus; |
48c036b1 GS |
500 | test 129, not tainted $xyzzy[0]; |
501 | test 130, tainted $xyzzy[1]; | |
502 | test 131, not tainted $xyzzy[2]; | |
a1f49e72 | 503 | my $red_october = sub { return "A", "tainted" . $TAINT, "B" }; |
48c036b1 GS |
504 | test 132, not tainted ((&$red_october)[0]); |
505 | test 133, tainted ((&$red_october)[1]); | |
506 | test 134, not tainted ((&$red_october)[2]); | |
a1f49e72 | 507 | my @corge = &$red_october; |
48c036b1 GS |
508 | test 135, not tainted $corge[0]; |
509 | test 136, tainted $corge[1]; | |
510 | test 137, not tainted $corge[2]; | |
a1f49e72 | 511 | } |
fb73857a | 512 | |
513 | # Test for system/library calls returning string data of dubious origin. | |
514 | { | |
515 | # No reliable %Config check for getpw* | |
516 | if (eval { setpwent(); getpwent(); 1 }) { | |
517 | setpwent(); | |
518 | my @getpwent = getpwent(); | |
519 | die "getpwent: $!\n" unless (@getpwent); | |
48c036b1 | 520 | test 138,( not tainted $getpwent[0] |
fb73857a | 521 | and not tainted $getpwent[1] |
522 | and not tainted $getpwent[2] | |
523 | and not tainted $getpwent[3] | |
524 | and not tainted $getpwent[4] | |
525 | and not tainted $getpwent[5] | |
526 | and tainted $getpwent[6] # gecos | |
527 | and not tainted $getpwent[7] | |
528 | and not tainted $getpwent[8]); | |
529 | endpwent(); | |
530 | } else { | |
48c036b1 | 531 | print "ok 138 # Skipped: getpwent() is not available\n"; |
fb73857a | 532 | } |
533 | ||
534 | if ($Config{d_readdir}) { # pretty hard to imagine not | |
535 | local(*D); | |
536 | opendir(D, "op") or die "opendir: $!\n"; | |
537 | my $readdir = readdir(D); | |
48c036b1 | 538 | test 139, tainted $readdir; |
fb73857a | 539 | closedir(OP); |
540 | } else { | |
48c036b1 | 541 | print "ok 139 # Skipped: readdir() is not available\n"; |
fb73857a | 542 | } |
543 | ||
544 | if ($Config{d_readlink} && $Config{d_symlink}) { | |
545 | my $symlink = "sl$$"; | |
546 | unlink($symlink); | |
547 | symlink("/something/naughty", $symlink) or die "symlink: $!\n"; | |
548 | my $readlink = readlink($symlink); | |
48c036b1 | 549 | test 140, tainted $readlink; |
fb73857a | 550 | unlink($symlink); |
551 | } else { | |
48c036b1 | 552 | print "ok 140 # Skipped: readlink() or symlink() is not available\n"; |
fb73857a | 553 | } |
554 | } | |
555 | ||
556 | # test bitwise ops (regression bug) | |
557 | { | |
558 | my $why = "y"; | |
559 | my $j = "x" | $why; | |
48c036b1 | 560 | test 141, not tainted $j; |
fb73857a | 561 | $why = $TAINT."y"; |
562 | $j = "x" | $why; | |
48c036b1 | 563 | test 142, tainted $j; |
fb73857a | 564 | } |
565 | ||
48c036b1 GS |
566 | # test target of substitution (regression bug) |
567 | { | |
568 | my $why = $TAINT."y"; | |
569 | $why =~ s/y/z/; | |
570 | test 143, tainted $why; | |
571 | ||
572 | my $z = "[z]"; | |
573 | $why =~ s/$z/zee/; | |
574 | test 144, tainted $why; | |
575 | ||
576 | $why =~ s/e/'-'.$$/ge; | |
577 | test 145, tainted $why; | |
578 | } |