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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
use vars qw(@EXPORT $VAR1);
# Common functions that are used in adduser and deluser
# Copyright (C) 2000 Roland Bauerschmidt <rb@debian.org>
# Most of the functions are adopted from the original adduser
# Copyright (C) 1997, 1998, 1999 Guy Maor <maor@debian.org>
# Copyright (C) 1995 Ted Hajek <tedhajek@boombox.micro.umn.edu>
# Ian A. Murdock <imurdock@gnu.ai.mit.edu>
#
@EXPORT = qw(invalidate_nscd gtx dief warnf read_config get_users_groups get_group_members s_print s_printf systemcall);
sub invalidate_nscd {
# Check if we need to do make -C /var/yp for NIS
my $nisconfig;
if(-f "/etc/default/nis") {
$nisconfig = "/etc/default/nis";
} elsif(-f "/etc/init.d/nis") {
$nisconfig = "/etc/init.d/nis";
}
# find out whether a local ypserv is running
# We can ditch any rpcinfo error since if the portmapper is nonfunctional,
# we couldn't connect to ypserv anyway. If this assumption is invalid,
# please file a bug and suggest a better way.
if(defined($nisconfig) && -f "/var/yp/Makefile" &&
-x "/usr/sbin/rpcinfo" && grep(/ypserv/, qx{/usr/sbin/rpcinfo -p 2>/dev/null})) {
open(NISCONFIG, "<$nisconfig");
if(grep(/^NISSERVER=master/, <NISCONFIG>)) {
system("make", "-C", "/var/yp");
}
close(NISCONFIG);
}
# Check if we need to invalidate the NSCD cache
my $nscd = &which('nscd',1);
# this function replaces startnscd and stopnscd (closes: #54726)
# We are ignoring any error messages given by nscd here since we
# cannot expect the nscd maintainer and upstream to document their
# interfaces. See #330929.
if(defined($nscd) && -x $nscd)
{
my $table = shift;
if ($table)
{
system ($nscd, "-i", $table);
}
else
{
# otherwise we invalidate passwd and group table
system ($nscd, "-i", "passwd");
system ($nscd, "-i", "group");
}
}
}
sub gtx {
return gettext( shift );
}
sub dief {
my ($form,@argu)=@_;
printf STDERR sprintf(gtx("%s: %s"), $0, $form), @argu;
exit 1;
}
sub warnf {
my ($form,@argu)=@_;
printf STDERR sprintf(gtx("%s: %s"), $0, $form), @argu;
}
# parse the configuration file
# parameters:
# -- filename of the configuration file
# -- a hash for the configuration data
sub read_config {
my ($conf_file, $configref) = @_;
my ($var, $lcvar, $val);
if (! -f $conf_file) {
warnf gtx("`%s' does not exist. Using defaults.\n"),$conf_file if $verbose;
return;
}
open (CONF, $conf_file) || dief ("%s: `%s'\n",$conf_file,$!);
while (<CONF>) {
chomp;
next if /^#/ || /^\s*$/;
if ((($var, $val) = /^\s*([_a-zA-Z0-9]+)\s*=\s*(.*)/) != 2) {
warnf gtx("Couldn't parse `%s', line %d.\n"),$conf_file,$.;
next;
}
$lcvar = lc $var;
if (!defined($configref->{$lcvar})) {
warnf gtx("Unknown variable `%s' at `%s', line %d.\n"),$var,$conf_file,$.;
next;
}
$val =~ s/^"(.*)"$/$1/;
$val =~ s/^'(.*)'$/$1/;
$configref->{$lcvar} = $val;
}
close CONF || die "$!";
}
# return a user's groups
sub get_users_groups {
my($user) = @_;
my($name,$members,@groups);
setgrent;
while (($name,$members) = (getgrent)[0,3]) {
for (split(/ /, $members)) {
if ($user eq $_) {
push @groups, $name;
last;
}
}
}
endgrent;
@groups;
}
# return a group's members
sub get_group_members
{
my $group = shift;
my @members;
foreach (split(/ /, (getgrnam($group))[3])) {
if (getpwuid(getpwnam($_)) eq $_ ) {
push @members, $_;
}
}
return @members;
}
sub s_print
{
print join(" ",@_)
if($verbose);
}
sub s_printf
{
printf @_
if($verbose);
}
sub d_printf
{
printf @_
if((defined($verbose) && $verbose > 1) || (defined($debugging) && $debugging == 1));
}
sub systemcall {
my $c = join(' ', @_);
print ("$c\n") if $verbose==2;
if (system(@_)) {
dief (gtx("`%s' returned error code %d. Exiting.\n"), $c, $?>>8)
if ($?>>8);
dief (gtx("`%s' exited from signal %d. Exiting.\n"), $c, $?&255);
}
}
sub which {
my ($progname, $nonfatal) = @_ ;
for my $dir (split /:/, $ENV{"PATH"}) {
if (-x "$dir/$progname" ) {
return "$dir/$progname";
}
}
dief(gtx("Could not find program named `%s' in \$PATH.\n"), $progname) unless ($nonfatal);
return 0;
}
# preseed the configuration variables
# then read the config file /etc/adduser and overwrite the data hardcoded here
sub preseed_config {
my ($conflistref, $configref) = @_;
$configref->{"system"} = 0;
$configref->{"only_if_empty"} = 0;
$configref->{"remove_home"} = 0;
$configref->{"home"} = "";
$configref->{"remove_all_files"} = 0;
$configref->{"backup"} = 0;
$configref->{"backup_to"} = ".";
$configref->{"dshell"} = "/bin/bash";
$configref->{"first_system_uid"} = 100;
$configref->{"last_system_uid"} = 999;
$configref->{"first_uid"} = 1000;
$configref->{"last_uid"} = 59999;
$configref->{"first_system_gid"} = 100;
$configref->{"last_system_gid"} = 999;
$configref->{"first_gid"} = 1000;
$configref->{"last_gid"} = 59999;
$configref->{"dhome"} = "/home";
$configref->{"skel"} = "/etc/skel";
$configref->{"usergroups"} = "yes";
$configref->{"users_gid"} = "100";
$configref->{"grouphomes"} = "no";
$configref->{"letterhomes"} = "no";
$configref->{"quotauser"} = "";
$configref->{"dir_mode"} = "0755";
$configref->{"setgid_home"} = "no";
$configref->{"no_del_paths"} = "^/$ ^/lost+found/.* ^/media/.* ^/mnt/.* ^/etc/.* ^/bin/.* ^/boot/.* ^/dev/.* ^/lib/.* ^/proc/.* ^/root/.* ^/sbin/.* ^/tmp/.* ^/sys/.* ^/srv/.* ^/opt/.* ^/initrd/.* ^/usr/.* ^/var/.*";
$configref->{"name_regex"} = "^[a-z][-a-z0-9_]*\$";
$configref->{"exclude_fstypes"} = "(proc|sysfs|usbfs|devpts|tmpfs)";
$configref->{"skel_ignore_regex"} = "dpkg-(old|new|dist)\$";
$configref->{"extra_groups"} = "dialout cdrom floppy audio video plugdev users";
$configref->{"add_extra_groups"} = 0;
foreach( @$conflistref ) {
read_config($_,$configref);
}
}
# Local Variables:
# mode:cperl
# End:
#vim:set ai et sts=4 sw=4 tw=0:
|
