1#!./perl 2 3BEGIN { 4 chdir 't' if -d 't'; 5 @INC = '../lib'; 6 eval {my @n = getpwuid 0; setpwent()}; 7 if ($@ && $@ =~ /(The \w+ function is unimplemented)/) { 8 print "1..0 # Skip: $1\n"; 9 exit 0; 10 } 11 eval { require Config; import Config; }; 12 my $reason; 13 if ($Config{'i_pwd'} ne 'define') { 14 $reason = '$Config{i_pwd} undefined'; 15 } 16 elsif (not -f "/etc/passwd" ) { # Play safe. 17 $reason = 'no /etc/passwd file'; 18 } 19 20 if (not defined $where) { # Try NIS. 21 foreach my $ypcat (qw(/usr/bin/ypcat /bin/ypcat /etc/ypcat)) { 22 if (-x $ypcat && 23 open(PW, "$ypcat passwd 2>/dev/null |") && 24 defined(<PW>)) { 25 $where = "NIS passwd"; 26 undef $reason; 27 last; 28 } 29 } 30 } 31 32 if (not defined $where) { # Try NetInfo. 33 foreach my $nidump (qw(/usr/bin/nidump)) { 34 if (-x $nidump && 35 open(PW, "$nidump passwd . 2>/dev/null |") && 36 defined(<PW>)) { 37 $where = "NetInfo passwd"; 38 undef $reason; 39 last; 40 } 41 } 42 } 43 44 if (not defined $where) { # Try local. 45 my $PW = "/etc/passwd"; 46 if (-f $PW && open(PW, $PW) && defined(<PW>)) { 47 $where = $PW; 48 undef $reason; 49 } 50 } 51 52 if (not defined $where) { # Try NIS+ 53 foreach my $niscat (qw(/bin/niscat)) { 54 if (-x $niscat && 55 open(PW, "$niscat passwd.org_dir 2>/dev/null |") && 56 defined(<PW>)) { 57 $where = "NIS+ $niscat passwd.org_dir"; 58 undef $reason; 59 last; 60 } 61 } 62 } 63 64 if ($reason) { # Give up. 65 print "1..0 # Skip: $reason\n"; 66 exit 0; 67 } 68} 69 70# By now the PW filehandle should be open and full of juicy password entries. 71 72print "1..2\n"; 73 74# Go through at most this many users. 75# (note that the first entry has been read away by now) 76my $max = 25; 77 78my $n = 0; 79my $tst = 1; 80my %perfect; 81my %seen; 82 83print "# where $where\n"; 84 85setpwent(); 86 87while (<PW>) { 88 chomp; 89 # LIMIT -1 so that users with empty shells don't fall off 90 my @s = split /:/, $_, -1; 91 my ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s); 92 if ($^O eq 'darwin') { 93 ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s[0,1,2,3,7,8,9]; 94 } else { 95 ($name_s, $passwd_s, $uid_s, $gid_s, $gcos_s, $home_s, $shell_s) = @s; 96 } 97 next if /^\+/; # ignore NIS includes 98 if (@s) { 99 push @{ $seen{$name_s} }, $.; 100 } else { 101 warn "# Your $where line $. is empty.\n"; 102 next; 103 } 104 if ($n == $max) { 105 local $/; 106 my $junk = <PW>; 107 last; 108 } 109 # In principle we could whine if @s != 7 but do we know enough 110 # of passwd file formats everywhere? 111 if (@s == 7 || ($^O eq 'darwin' && @s == 10)) { 112 @n = getpwuid($uid_s); 113 # 'nobody' et al. 114 next unless @n; 115 my ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n; 116 # Protect against one-to-many and many-to-one mappings. 117 if ($name_s ne $name) { 118 @n = getpwnam($name_s); 119 ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$home,$shell) = @n; 120 next if $name_s ne $name; 121 } 122 $perfect{$name_s}++ 123 if $name eq $name_s and 124 $uid eq $uid_s and 125# Do not compare passwords: think shadow passwords. 126 $gid eq $gid_s and 127 $gcos eq $gcos_s and 128 $home eq $home_s and 129 $shell eq $shell_s; 130 } 131 $n++; 132} 133 134endpwent(); 135 136print "# max = $max, n = $n, perfect = ", scalar keys %perfect, "\n"; 137 138if (keys %perfect == 0 && $n) { 139 $max++; 140 print <<EOEX; 141# 142# The failure of op/pwent test is not necessarily serious. 143# It may fail due to local password administration conventions. 144# If you are for example using both NIS and local passwords, 145# test failure is possible. Any distributed password scheme 146# can cause such failures. 147# 148# What the pwent test is doing is that it compares the $max first 149# entries of $where 150# with the results of getpwuid() and getpwnam() call. If it finds no 151# matches at all, it suspects something is wrong. 152# 153EOEX 154 print "not "; 155 $not = 1; 156} else { 157 $not = 0; 158} 159print "ok ", $tst++; 160print "\t# (not necessarily serious: run t/op/pwent.t by itself)" if $not; 161print "\n"; 162 163# Test both the scalar and list contexts. 164 165my @pw1; 166 167setpwent(); 168for (1..$max) { 169 my $pw = scalar getpwent(); 170 last unless defined $pw; 171 push @pw1, $pw; 172} 173endpwent(); 174 175my @pw2; 176 177setpwent(); 178for (1..$max) { 179 my ($pw) = (getpwent()); 180 last unless defined $pw; 181 push @pw2, $pw; 182} 183endpwent(); 184 185print "not " unless "@pw1" eq "@pw2"; 186print "ok ", $tst++, "\n"; 187 188close(PW); 189