BEGIN {
chdir 't' if -d 't';
- @INC = "../lib" if -d "../lib";
- eval { require Config; import Config; };
+ require './test.pl';
+ set_up_inc('../lib');
+}
- my $PW = "/etc/passwd";
+use strict;
+use warnings;
+
+eval {my @n = getpwuid 0; setpwent()};
+skip_all($1) if $@ && $@ =~ /(The \w+ function is unimplemented)/;
+
+eval { require Config; };
+
+sub try_prog {
+ my ($where, $args, @pathnames) = @_;
+ foreach my $prog (@pathnames) {
+ next unless -x $prog;
+ next unless open PW, '-|', "$prog $args 2>/dev/null";
+ next unless defined <PW>;
+ return $where;
+ }
+ return;
+}
+
+# Try NIS.
+my $where = try_prog('NIS passwd', 'passwd',
+ qw(/usr/bin/ypcat /bin/ypcat /etc/ypcat));
+
+# Try NetInfo.
+$where //= try_prog('NetInfo passwd', 'passwd .', '/usr/bin/nidump');
+
+# Try NIS+.
+$where //= try_prog('NIS+', 'passwd.org_dir', '/bin/niscat');
+
+# Try dscl
+DSCL: {
+my @dscl = qw(/usr/bin/dscl);
+if (!defined $where && $Config::Config{useperlio} && grep { -x } @dscl) {
+ eval { require PerlIO::scalar; }; # Beware miniperl.
+ if ($@) {
+ print "# No PerlIO::scalar, will not try dscl\n";
+ last DSCL;
+ }
+ # Map dscl items to passwd fields, and provide support for
+ # mucking with the dscl output if we need to (and we do).
+ my %want = do {
+ my $inx = 0;
+ map {$_ => {inx => $inx++, mung => sub {$_[0]}}}
+ qw{RecordName Password UniqueID PrimaryGroupID
+ RealName NFSHomeDirectory UserShell};
+ };
+
+ # The RecordName for a /User record is the username. In some
+ # cases there are synonyms (e.g. _www and www), in which case we
+ # get a blank-delimited list. We prefer the first entry in the
+ # list because getpwnam() does.
+ $want{RecordName}{mung} = sub {(split '\s+', $_[0], 2)[0]};
+
+ # The UniqueID and PrimaryGroupID for a /User record are the
+ # user ID and the primary group ID respectively. In cases where
+ # the high bit is set, 'dscl' returns a negative number, whereas
+ # getpwnam() returns its twos complement. This mungs the dscl
+ # output to agree with what getpwnam() produces. Interestingly
+ # enough, getpwuid(-2) returns the right record ('nobody'), even
+ # though it returns the uid as 4294967294. If you track uid_t
+ # on an i386, you find it is an unsigned int, which makes the
+ # unsigned version the right one; but both /etc/passwd and
+ # /etc/master.passwd contain negative numbers.
+ $want{UniqueID}{mung} = $want{PrimaryGroupID}{mung} = sub {
+ unpack 'L', pack 'l', $_[0]};
- if (($^O eq 'next' and not open(PW, "nidump passwd .|"))
- or (defined $Config{'i_pwd'} and $Config{'i_pwd'} ne 'define')
- or not -f $PW or not open(PW, $PW)
- ) {
- print "1..0\n";
- exit 0;
+ foreach my $dscl (@dscl) {
+ next unless -x $dscl;
+ next unless open my $fh, '-|', "$dscl . -readall /Users @{[keys %want]} 2>/dev/null";
+ my @lines;
+ my @rec;
+ while (<$fh>) {
+ chomp;
+ if ($_ eq '-') {
+ if (@rec) {
+ # Some records do not have all items. In particular,
+ # the macports user has no real name. Here it's an undef,
+ # in the password file it becomes an empty string.
+ no warnings 'uninitialized';
+ push @lines, join (':', @rec) . "\n";
+ @rec = ();
+ }
+ next;
+ }
+ my ($name, $value) = split ':\s+', $_, 2;
+ unless (defined $value) {
+ s/:$//;
+ $name = $_;
+ $value = <$fh>;
+ chomp $value;
+ $value =~ s/^\s+//;
+ }
+ if (defined (my $info = $want{$name})) {
+ $rec[$info->{inx}] = $info->{mung}->($value);
+ }
+ }
+ if (@rec) {
+ # see above
+ no warnings 'uninitialized';
+ push @lines, join (':', @rec) . "\n";
+ }
+ my $data = join '', @lines;
+ if (open PW, '<', \$data) { # Needs PerlIO::scalar.
+ $where = "dscl . -readall /Users";
+ last;
+ }
}
}
+} # DSCL:
-print "1..1\n";
+if (not defined $where) {
+ # Try local.
+ my $no_i_pwd = !$Config::Config{i_pwd} && '$Config{i_pwd} undefined';
+
+ my $PW = "/etc/passwd";
+ if (!-f $PW) {
+ skip_all($no_i_pwd) if $no_i_pwd;
+ skip_all("no $PW file");
+ } elsif (open PW, '<', $PW) {
+ if(defined <PW>) {
+ $where = $PW;
+ } else {
+ skip_all($no_i_pwd) if $no_i_pwd;
+ die "\$Config{i_pwd} is defined, $PW exists but has no entries, all other approaches failed, giving up";
+ }
+ } else {
+ die "Can't open $PW: $!";
+ }
+}
+
+# By now the PW filehandle should be open and full of juicy password entries.
+
+plan(tests => 2);
# Go through at most this many users.
-my $max = 25; #
+# (note that the first entry has been read away by now)
+my $max = 25;
my $n = 0;
-my $not;
-my $tst = 1;
+my %perfect;
+my %seen;
+
+print "# where $where\n";
+
+setpwent();
-$not = 0;
while (<PW>) {
- last if $n == $max;
chomp;
- @s = split /:/;
- if (@s == 7) {
- my ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s;
- @n = getpwuid($uid_s);
+ # LIMIT -1 so that users with empty shells don't fall off
+ my @s = split /:/, $_, -1;
+ my ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s);
+ (my $v) = $Config::Config{osvers} =~ /^(\d+)/;
+ if ($^O eq 'darwin' && $v < 9) {
+ ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s[0,1,2,3,7,8,9];
+ } else {
+ ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s;
+ }
+ next if /^\+/; # ignore NIS includes
+ if (@s) {
+ push @{ $seen{$name_s} }, $.;
+ } else {
+ warn "# Your $where line $. is empty.\n";
+ next;
+ }
+ if ($n == $max) {
+ local $/;
+ my $junk = <PW>;
+ last;
+ }
+ # In principle we could whine if @s != 7 but do we know enough
+ # of passwd file formats everywhere?
+ if (@s == 7 || ($^O eq 'darwin' && @s == 10)) {
+ my @n = getpwuid($uid_s);
# 'nobody' et al.
next unless @n;
my ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n;
($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n;
next if $name_s ne $name;
}
- $not = 1, last
- if $name ne $name_s or
-# Shadow passwords confuse this.
-# Think about non-crypt(3) encryptions, too, before you do anything rash.
-# $passwd ne $passwd_s or
- $uid ne $uid_s or
- $gid ne $gid_s or
- $gcos ne $gcos_s or
- $home ne $home_s or
- $shell ne $shell_s;
+ $perfect{$name_s}++
+ if $name eq $name_s and
+ $uid eq $uid_s and
+# Do not compare passwords: think shadow passwords.
+ $gid eq $gid_s and
+ $gcos eq $gcos_s and
+ $home eq $home_s and
+ $shell eq $shell_s;
}
$n++;
}
-print "not " if $not;
-print "ok ", $tst++, "\n";
+endpwent();
+
+print "# max = $max, n = $n, perfect = ", scalar keys %perfect, "\n";
+
+SKIP: {
+ skip("Found no password entries", 1) unless $n;
+
+ if (keys %perfect == 0) {
+ $max++;
+ print <<EOEX;
+#
+# The failure of op/pwent test is not necessarily serious.
+# It may fail due to local password administration conventions.
+# If you are for example using both NIS and local passwords,
+# test failure is possible. Any distributed password scheme
+# can cause such failures.
+#
+# What the pwent test is doing is that it compares the $max first
+# entries of $where
+# with the results of getpwuid() and getpwnam() call. If it finds no
+# matches at all, it suspects something is wrong.
+#
+EOEX
+ }
+
+ cmp_ok(keys %perfect, '>', 0, "pwent test satisfactory")
+ or note("(not necessarily serious: run t/op/pwent.t by itself)");
+}
+
+# Test both the scalar and list contexts.
+
+my @pw1;
+
+setpwent();
+for (1..$max) {
+ my $pw = scalar getpwent();
+ last unless defined $pw;
+ push @pw1, $pw;
+}
+endpwent();
+
+my @pw2;
+
+setpwent();
+for (1..$max) {
+ my ($pw) = (getpwent());
+ last unless defined $pw;
+ push @pw2, $pw;
+}
+endpwent();
+
+is("@pw1", "@pw2",
+ "getpwent() produced identical results in list and scalar contexts");
close(PW);
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