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Convert t/op/pwent.t to test.pl, strict and warnings.
[perl5.git] / t / op / pwent.t
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1#!./perl
2
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3BEGIN {
4 chdir 't' if -d 't';
5 @INC = '../lib';
6 require './test.pl';
7}
8
9use strict;
10use warnings;
11
12eval {my @n = getpwuid 0; setpwent()};
13skip_all($1) if $@ && $@ =~ /(The \w+ function is unimplemented)/;
14
15eval { require Config; };
16
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17sub try_prog {
18 my ($where, $args, @pathnames) = @_;
19 foreach my $prog (@pathnames) {
20 next unless -x $prog;
21 next unless open PW, '-|', "$prog $args 2>/dev/null";
22 next unless defined <PW>;
23 return $where;
24 }
25 return;
26}
27
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28# Try NIS.
29my $where = try_prog('NIS passwd', 'passwd',
30 qw(/usr/bin/ypcat /bin/ypcat /etc/ypcat));
31
32# Try NetInfo.
33$where //= try_prog('NetInfo passwd', 'passwd .', '/usr/bin/nidump');
34
35# Try NIS+.
36$where //= try_prog('NIS+', 'passwd.org_dir', '/bin/niscat');
37
38# Try dscl
39if (!defined $where && $Config::Config{useperlio}) {
40 # Map dscl items to passwd fields, and provide support for
41 # mucking with the dscl output if we need to (and we do).
42 my %want = do {
43 my $inx = 0;
44 map {$_ => {inx => $inx++, mung => sub {$_[0]}}}
45 qw{RecordName Password UniqueID PrimaryGroupID
46 RealName NFSHomeDirectory UserShell};
47 };
48
49 # The RecordName for a /User record is the username. In some
50 # cases there are synonyms (e.g. _www and www), in which case we
51 # get a blank-delimited list. We prefer the first entry in the
52 # list because getpwnam() does.
53 $want{RecordName}{mung} = sub {(split '\s+', $_[0], 2)[0]};
54
55 # The UniqueID and PrimaryGroupID for a /User record are the
56 # user ID and the primary group ID respectively. In cases where
57 # the high bit is set, 'dscl' returns a negative number, whereas
58 # getpwnam() returns its twos complement. This mungs the dscl
59 # output to agree with what getpwnam() produces. Interestingly
60 # enough, getpwuid(-2) returns the right record ('nobody'), even
61 # though it returns the uid as 4294967294. If you track uid_t
62 # on an i386, you find it is an unsigned int, which makes the
63 # unsigned version the right one; but both /etc/passwd and
64 # /etc/master.passwd contain negative numbers.
65 $want{UniqueID}{mung} = $want{PrimaryGroupID}{mung} = sub {
66 unpack 'L', pack 'l', $_[0]};
67
68 foreach my $dscl (qw(/usr/bin/dscl)) {
69 next unless -x $dscl;
70 next unless open my $fh, '-|', "$dscl . -readall /Users @{[keys %want]} 2>/dev/null";
71 my @lines;
72 my @rec;
73 while (<$fh>) {
74 chomp;
75 if ($_ eq '-') {
76 if (@rec) {
77 push @lines, join (':', @rec) . "\n";
0d7a9d9f 78 @rec = ();
0d7a9d9f 79 }
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80 next;
81 }
82 my ($name, $value) = split ':\s+', $_, 2;
83 unless (defined $value) {
84 s/:$//;
85 $name = $_;
86 $value = <$fh>;
87 chomp $value;
88 $value =~ s/^\s+//;
0d7a9d9f 89 }
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90 if (defined (my $info = $want{$name})) {
91 $rec[$info->{inx}] = $info->{mung}->($value);
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92 }
93 }
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94 if (@rec) {
95 push @lines, join (':', @rec) . "\n";
96 }
97 my $data = join '', @lines;
98 if (open PW, '<', \$data) {
99 $where = "dscl . -readall /Users";
100 last;
101 }
0d7a9d9f 102 }
16acebfd 103}
0d7a9d9f 104
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105if (not defined $where) {
106 # Try local.
107 my $no_i_pwd = !$Config::Config{i_pwd} && '$Config{i_pwd} undefined';
108
109 my $PW = "/etc/passwd";
110 if (!-f $PW) {
111 skip_all($no_i_pwd) if $no_i_pwd;
112 skip_all("no $PW file");
113 } elsif (open PW, '<', $PW) {
114 if(defined <PW>) {
115 $where = $PW;
0f0aa27e 116 } else {
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117 skip_all($no_i_pwd) if $no_i_pwd;
118 die "\$Config{i_pwd} is defined, $PW exists but has no entries, all other approaches failed, giving up";
55ec6b63 119 }
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120 } else {
121 die "Can't open $PW: $!";
b91c0863 122 }
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123}
124
765e9edb 125# By now the PW filehandle should be open and full of juicy password entries.
b91c0863 126
16acebfd 127plan(tests => 2);
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128
129# Go through at most this many users.
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130# (note that the first entry has been read away by now)
131my $max = 25;
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132
133my $n = 0;
b91c0863 134my %perfect;
55ec6b63 135my %seen;
c5987ebb 136
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137print "# where $where\n";
138
bd055eb9 139setpwent();
f0debaab 140
c5987ebb 141while (<PW>) {
c5987ebb 142 chomp;
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143 # LIMIT -1 so that users with empty shells don't fall off
144 my @s = split /:/, $_, -1;
32b4ad3c 145 my ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s);
16acebfd 146 (my $v) = $Config::Config{osvers} =~ /^(\d+)/;
8faed529 147 if ($^O eq 'darwin' && $v < 9) {
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148 ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s[0,1,2,3,7,8,9];
149 } else {
150 ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s;
151 }
b91c0863 152 next if /^\+/; # ignore NIS includes
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153 if (@s) {
154 push @{ $seen{$name_s} }, $.;
155 } else {
156 warn "# Your $where line $. is empty.\n";
157 next;
158 }
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159 if ($n == $max) {
160 local $/;
161 my $junk = <PW>;
162 last;
163 }
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164 # In principle we could whine if @s != 7 but do we know enough
165 # of passwd file formats everywhere?
32b4ad3c 166 if (@s == 7 || ($^O eq 'darwin' && @s == 10)) {
16acebfd 167 my @n = getpwuid($uid_s);
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168 # 'nobody' et al.
169 next unless @n;
170 my ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n;
171 # Protect against one-to-many and many-to-one mappings.
172 if ($name_s ne $name) {
173 @n = getpwnam($name_s);
174 ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n;
175 next if $name_s ne $name;
176 }
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177 $perfect{$name_s}++
178 if $name eq $name_s and
179 $uid eq $uid_s and
180# Do not compare passwords: think shadow passwords.
181 $gid eq $gid_s and
182 $gcos eq $gcos_s and
183 $home eq $home_s and
184 $shell eq $shell_s;
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185 }
186 $n++;
187}
f0debaab 188
bd055eb9 189endpwent();
c5987ebb 190
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191print "# max = $max, n = $n, perfect = ", scalar keys %perfect, "\n";
192
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193SKIP: {
194 skip("Found no password entries", 1) unless $n;
195
196 if (keys %perfect == 0) {
197 $max++;
198 print <<EOEX;
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199#
200# The failure of op/pwent test is not necessarily serious.
201# It may fail due to local password administration conventions.
202# If you are for example using both NIS and local passwords,
203# test failure is possible. Any distributed password scheme
204# can cause such failures.
205#
206# What the pwent test is doing is that it compares the $max first
207# entries of $where
208# with the results of getpwuid() and getpwnam() call. If it finds no
209# matches at all, it suspects something is wrong.
210#
211EOEX
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212 }
213
214 cmp_ok(keys %perfect, '>', 0)
215 or note("(not necessarily serious: run t/op/pwent.t by itself)");
55ec6b63 216}
c5987ebb 217
91e74348 218# Test both the scalar and list contexts.
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219
220my @pw1;
221
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222setpwent();
223for (1..$max) {
224 my $pw = scalar getpwent();
225 last unless defined $pw;
226 push @pw1, $pw;
227}
bd055eb9 228endpwent();
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229
230my @pw2;
231
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232setpwent();
233for (1..$max) {
234 my ($pw) = (getpwent());
235 last unless defined $pw;
236 push @pw2, $pw;
237}
bd055eb9 238endpwent();
765e9edb 239
16acebfd 240is("@pw1", "@pw2");
765e9edb 241
c5987ebb 242close(PW);