1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#!./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 $s = shift;
return 0xB6 != ord pack('a*', chr(0xB6).$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 = pack('C0a*', $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('C0a*', $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";
}
|
