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Diffstat (limited to 'beagle/debian-rfs/usr/sbin/update-rc.d-insserv')
-rwxr-xr-xbeagle/debian-rfs/usr/sbin/update-rc.d-insserv593
1 files changed, 593 insertions, 0 deletions
diff --git a/beagle/debian-rfs/usr/sbin/update-rc.d-insserv b/beagle/debian-rfs/usr/sbin/update-rc.d-insserv
new file mode 100755
index 0000000..1853251
--- /dev/null
+++ b/beagle/debian-rfs/usr/sbin/update-rc.d-insserv
@@ -0,0 +1,593 @@
+#! /usr/bin/perl
+#
+# update-rc.d Update the links in /etc/rc[0-9S].d/
+#
+
+use strict;
+use warnings;
+
+my $initd = "/etc/init.d";
+my $etcd = "/etc/rc";
+my $notreally = 0;
+
+# Save last action to this directory
+my $archive = "/var/lib/update-rc.d";
+
+# Print usage message and die.
+
+sub usage {
+ print STDERR "update-rc.d: error: @_\n" if ($#_ >= 0);
+ print STDERR <<EOF;
+usage: update-rc.d [-n] [-f] <basename> remove
+ update-rc.d [-n] <basename> defaults [NN | SS KK]
+ update-rc.d [-n] <basename> start|stop NN runlvl [runlvl] [...] .
+ update-rc.d [-n] <basename> disable|enable [S|2|3|4|5]
+ -n: not really
+ -f: force
+
+The disable|enable API is not stable and might change in the future.
+EOF
+ exit (1);
+}
+
+# Dependency based boot sequencing is the default, but upgraded
+# systems might keep the legacy ordering until the sysadm choose to
+# migrate to the new ordering method. sysv-rc version 2.87dsf-2 will
+# remove /var/lib/insserv/using-insserv and this divert, thus transfering
+# the responsibility for dependency based update-rc.d to sysv-rc.
+if ( -f "/var/lib/insserv/using-insserv" && ! -f "/etc/init.d/.legacy-bootordering" ) {
+ info("using dependency based boot sequencing");
+ exit insserv_updatercd(@ARGV);
+}
+
+# Check out options.
+my $force;
+
+my @orig_argv = @ARGV;
+
+while($#ARGV >= 0 && ($_ = $ARGV[0]) =~ /^-/) {
+ shift @ARGV;
+ if (/^-n$/) { $notreally++; next }
+ if (/^-f$/) { $force++; next }
+ if (/^-h|--help$/) { &usage; }
+ &usage("unknown option");
+}
+
+sub save_last_action {
+ my ($script, @arguments) = @_;
+
+ return if $notreally;
+
+ open(FILE, ">", "$archive/${script}.new") || die "unable to write to $archive/${script}.new";
+ print FILE join(" ","update-rc.d",@arguments), "\n";
+ close(FILE);
+ rename "$archive/${script}.new", "$archive/${script}";
+}
+
+sub remove_last_action {
+ my ($script) = @_;
+ unlink "$archive/$script";
+}
+
+# Action.
+
+&usage() if ($#ARGV < 1);
+my $bn = shift @ARGV;
+
+unless ($bn =~ m/[a-zA-Z0-9+.-]+/) {
+ print STDERR "update-rc.d: illegal character in name '$bn'\n";
+ exit (1);
+}
+
+if ($ARGV[0] ne 'remove') {
+ if (! -f "$initd/$bn") {
+ print STDERR "update-rc.d: $initd/$bn: file does not exist\n";
+ exit (1);
+ }
+ &parse_lsb_header("$initd/$bn");
+ &cmp_args_with_defaults($bn, $ARGV[0], @ARGV);
+} elsif (-f "$initd/$bn") {
+ if (!$force) {
+ printf STDERR "update-rc.d: $initd/$bn exists during rc.d purge (use -f to force)\n";
+ exit (1);
+ }
+}
+
+my @startlinks;
+my @stoplinks;
+
+$_ = $ARGV[0];
+if (/^remove$/) { &checklinks ("remove"); remove_last_action($bn); }
+elsif (/^defaults$/) { &defaults (@ARGV); &makelinks; save_last_action($bn, @orig_argv); }
+elsif (/^(start|stop)$/) { &startstop (@ARGV); &makelinks; save_last_action($bn, @orig_argv); }
+elsif (/^(dis|en)able$/) { &toggle (@ARGV); &makelinks; save_last_action($bn, @orig_argv); }
+else { &usage; }
+
+exit (0);
+
+sub info {
+ print STDOUT "update-rc.d: @_\n";
+}
+
+sub warning {
+ print STDERR "update-rc.d: warning: @_\n";
+}
+
+sub error {
+ print STDERR "update-rc.d: error: @_\n";
+ exit (1);
+}
+
+sub error_code {
+ my $rc = shift;
+ print STDERR "update-rc.d: error: @_\n";
+ exit ($rc);
+}
+
+# Check if there are links in /etc/rc[0-9S].d/
+# Remove if the first argument is "remove" and the links
+# point to $bn.
+
+sub is_link () {
+ my ($op, $fn, $bn) = @_;
+ if (! -l $fn) {
+ warning "$fn is not a symbolic link\n";
+ return 0;
+ } else {
+ my $linkdst = readlink ($fn);
+ if (! defined $linkdst) {
+ die ("update-rc.d: error reading symbolic link: $!\n");
+ }
+ if (($linkdst ne "../init.d/$bn") && ($linkdst ne "$initd/$bn")) {
+ warning "$fn is not a link to ../init.d/$bn or $initd/$bn\n";
+ return 0;
+ }
+ }
+ return 1;
+}
+
+sub checklinks {
+ my ($i, $found, $fn, $islnk);
+
+ print " Removing any system startup links for $initd/$bn ...\n"
+ if (defined $_[0] && $_[0] eq 'remove');
+
+ $found = 0;
+
+ foreach $i (0..9, 'S') {
+ unless (chdir ("$etcd$i.d")) {
+ next if ($i =~ m/^[789S]$/);
+ die("update-rc.d: chdir $etcd$i.d: $!\n");
+ }
+ opendir(DIR, ".");
+ my $saveBN=$bn;
+ $saveBN =~ s/\+/\\+/g;
+ foreach $_ (readdir(DIR)) {
+ next unless (/^[SK]\d\d$saveBN$/);
+ $fn = "$etcd$i.d/$_";
+ $found = 1;
+ $islnk = &is_link ($_[0], $fn, $bn);
+ next unless (defined $_[0] and $_[0] eq 'remove');
+ if (! $islnk) {
+ print " $fn is not a link to ../init.d/$bn; not removing\n";
+ next;
+ }
+ print " $etcd$i.d/$_\n";
+ next if ($notreally);
+ unlink ("$etcd$i.d/$_") ||
+ die("update-rc.d: unlink: $!\n");
+ }
+ closedir(DIR);
+ }
+ $found;
+}
+
+sub parse_lsb_header {
+ my $initdscript = shift;
+ my %lsbinfo;
+ my $lsbheaders = "Provides|Required-Start|Required-Stop|Default-Start|Default-Stop";
+ open(INIT, "<$initdscript") || die "error: unable to read $initdscript";
+ while (<INIT>) {
+ chomp;
+ $lsbinfo{'found'} = 1 if (m/^\#\#\# BEGIN INIT INFO\s*$/);
+ last if (m/\#\#\# END INIT INFO\s*$/);
+ if (m/^\# ($lsbheaders):\s*(\S?.*)$/i) {
+ $lsbinfo{lc($1)} = $2;
+ }
+ }
+ close(INIT);
+
+ # Check that all the required headers are present
+ if (!$lsbinfo{found}) {
+ printf STDERR "update-rc.d: warning: $initdscript missing LSB information\n";
+ printf STDERR "update-rc.d: see <http://wiki.debian.org/LSBInitScripts>\n";
+ } else {
+ for my $key (split(/\|/, lc($lsbheaders))) {
+ if (!exists $lsbinfo{$key}) {
+ warning "$initdscript missing LSB keyword '$key'\n";
+ }
+ }
+ }
+}
+
+
+# Process the arguments after the "enable" or "disable" keyword.
+
+sub toggle {
+ my @argv = @_;
+ my ($action, %lvls, @start, @stop, @xstartlinks);
+
+ if (!&checklinks) {
+ print " System start/stop links for $initd/$bn do not exist.\n";
+ exit (0);
+ }
+
+ $action = $argv[0];
+ if ($#argv > 1) {
+ while ($#argv > 0 && shift @argv) {
+ if ($argv[0] =~ /^[S2-5]$/) {
+ $lvls{$argv[0]}++;
+ } else {
+ &usage ("expected 'S' '2' '3' '4' or '5'");
+ }
+ }
+ } else {
+ $lvls{$_}++ for ('S', '2', '3', '4', '5');
+ }
+
+ push(@start, glob($etcd . '[2-5S].d/[KS][0-9][0-9]' . $bn));
+
+ foreach (@start) {
+ my $islink = &is_link (undef, $_, $bn);
+ next if !$islink;
+
+ next unless my ($lvl, $sk, $seq) = m/^$etcd([2-5S])\.d\/([SK])([0-9]{2})$bn$/;
+ $startlinks[$lvl] = $sk . $seq;
+
+ if ($action eq 'disable' and $sk eq 'S' and $lvls{$lvl}) {
+ $xstartlinks[$lvl] = 'K' . sprintf "%02d", (100 - $seq);
+ } elsif ($action eq 'enable' and $sk eq 'K' and $lvls{$lvl}) {
+ $xstartlinks[$lvl] = 'S' . sprintf "%02d", -($seq - 100);
+ } else {
+ $xstartlinks[$lvl] = $sk . $seq;
+ }
+ }
+
+ push(@stop, glob($etcd . '[016].d/[KS][0-9][0-9]' . $bn));
+
+ foreach (@stop) {
+ my $islink = &is_link (undef, $_, $bn);
+ next if !$islink;
+
+ next unless my ($lvl, $sk, $seq) = m/^$etcd([016])\.d\/([SK])([0-9]{2})$bn$/;
+ $stoplinks[$lvl] = $sk . $seq;
+ }
+
+ if ($action eq 'disable') {
+ print " Disabling system startup links for $initd/$bn ...\n";
+ } elsif ($action eq 'enable') {
+ print " Enabling system startup links for $initd/$bn ...\n";
+ }
+
+ &checklinks ("remove");
+ @startlinks = @xstartlinks;
+
+ 1;
+}
+
+# Process the arguments after the "defaults" keyword.
+
+sub defaults {
+ my @argv = @_;
+ my ($start, $stop) = (20, 20);
+
+ &usage ("defaults takes only one or two codenumbers") if ($#argv > 2);
+ $start = $stop = $argv[1] if ($#argv >= 1);
+ $stop = $argv[2] if ($#argv >= 2);
+ &usage ("codenumber must be a number between 0 and 99")
+ if ($start !~ /^\d\d?$/ || $stop !~ /^\d\d?$/);
+
+ $start = sprintf("%02d", $start);
+ $stop = sprintf("%02d", $stop);
+
+ $stoplinks[$_] = "K$stop" for (0, 1, 6);
+ $startlinks[$_] = "S$start" for (2, 3, 4, 5);
+
+ 1;
+}
+
+# Process the arguments after the start or stop keyword.
+
+sub startstop {
+ my @argv = @_;
+ my($letter, $NN, $level);
+
+ while ($#argv >= 0) {
+ if ($argv[0] eq 'start') { $letter = 'S'; }
+ elsif ($argv[0] eq 'stop') { $letter = 'K'; }
+ else {
+ &usage("expected start|stop");
+ }
+
+ if ($argv[1] !~ /^\d\d?$/) {
+ &usage("expected NN after $argv[0]");
+ }
+ $NN = sprintf("%02d", $argv[1]);
+
+ if ($argv[-1] ne '.') {
+ &usage("start|stop arguments not terminated by \".\"");
+ }
+
+ shift @argv; shift @argv;
+ $level = shift @argv;
+ do {
+ if ($level !~ m/^[0-9S]$/) {
+ &usage(
+ "expected runlevel [0-9S] (did you forget \".\" ?)");
+ }
+ if (! -d "$etcd$level.d") {
+ print STDERR
+ "update-rc.d: $etcd$level.d: no such directory\n";
+ exit(1);
+ }
+ $level = 99 if ($level eq 'S');
+ $startlinks[$level] = "$letter$NN" if ($letter eq 'S');
+ $stoplinks[$level] = "$letter$NN" if ($letter eq 'K');
+ } while (($level = shift @argv) ne '.');
+ }
+ 1;
+}
+
+# Create the links.
+
+sub makelinks {
+ my($t, $i);
+ my @links;
+
+ if (&checklinks) {
+ print " System start/stop links for $initd/$bn already exist.\n";
+ return 0;
+ }
+ print " Adding system startup for $initd/$bn ...\n";
+
+ # nice unreadable perl mess :)
+
+ for($t = 0; $t < 2; $t++) {
+ @links = $t ? @startlinks : @stoplinks;
+ for($i = 0; $i <= $#links; $i++) {
+ my $lvl = $i;
+ $lvl = 'S' if ($i == 99);
+ next if (!defined $links[$i] or $links[$i] eq '');
+ print " $etcd$lvl.d/$links[$i]$bn -> ../init.d/$bn\n";
+ next if ($notreally);
+ symlink("../init.d/$bn", "$etcd$lvl.d/$links[$i]$bn")
+ || die("update-rc.d: symlink: $!\n");
+ }
+ }
+
+ 1;
+}
+
+## Dependency based
+sub insserv_updatercd {
+ my @args = @_;
+ my @opts;
+ my $scriptname;
+ my $action;
+ my $notreally = 0;
+
+ my @orig_argv = @args;
+
+ while($#args >= 0 && ($_ = $args[0]) =~ /^-/) {
+ shift @args;
+ if (/^-n$/) { push(@opts, $_); $notreally++; next }
+ if (/^-f$/) { push(@opts, $_); next }
+ if (/^-h|--help$/) { &usage; }
+ usage("unknown option");
+ }
+
+ usage("not enough arguments") if ($#args < 1);
+
+ $scriptname = shift @args;
+ $action = shift @args;
+ if ("remove" eq $action) {
+ if ( -f "/etc/init.d/$scriptname" ) {
+ my $rc = system("insserv", @opts, "-r", $scriptname) >> 8;
+ if (0 == $rc && !$notreally) {
+ remove_last_action($scriptname);
+ }
+ error_code($rc, "insserv rejected the script header") if $rc;
+ exit $rc;
+ } else {
+ # insserv removes all dangling symlinks, no need to tell it
+ # what to look for.
+ my $rc = system("insserv", @opts) >> 8;
+ if (0 == $rc && !$notreally) {
+ remove_last_action($scriptname);
+ }
+ error_code($rc, "insserv rejected the script header") if $rc;
+ exit $rc;
+ }
+ } elsif ("defaults" eq $action || "start" eq $action ||
+ "stop" eq $action) {
+ # All start/stop/defaults arguments are discarded so emit a
+ # message if arguments have been given and are in conflict
+ # with Default-Start/Default-Stop values of LSB comment.
+ cmp_args_with_defaults($scriptname, $action, @args);
+
+ if ( -f "/etc/init.d/$scriptname" ) {
+ my $rc = system("insserv", @opts, $scriptname) >> 8;
+ if (0 == $rc && !$notreally) {
+ save_last_action($scriptname, @orig_argv);
+ }
+ error_code($rc, "insserv rejected the script header") if $rc;
+ exit $rc;
+ } else {
+ error("initscript does not exist: /etc/init.d/$scriptname");
+ }
+ } elsif ("disable" eq $action || "enable" eq $action) {
+ insserv_toggle($notreally, $action, $scriptname, @args);
+ # Call insserv to resequence modified links
+ my $rc = system("insserv", @opts, $scriptname) >> 8;
+ if (0 == $rc && !$notreally) {
+ save_last_action($scriptname, @orig_argv);
+ }
+ error_code($rc, "insserv rejected the script header") if $rc;
+ exit $rc;
+ } else {
+ usage();
+ }
+}
+
+sub parse_def_start_stop {
+ my $script = shift;
+ my (%lsb, @def_start_lvls, @def_stop_lvls);
+
+ open my $fh, '<', $script or error("unable to read $script");
+ while (<$fh>) {
+ chomp;
+ if (m/^### BEGIN INIT INFO$/) {
+ $lsb{'begin'}++;
+ }
+ elsif (m/^### END INIT INFO$/) {
+ $lsb{'end'}++;
+ last;
+ }
+ elsif ($lsb{'begin'} and not $lsb{'end'}) {
+ if (m/^# Default-Start:\s*(\S?.*)$/) {
+ @def_start_lvls = split(' ', $1);
+ }
+ if (m/^# Default-Stop:\s*(\S?.*)$/) {
+ @def_stop_lvls = split(' ', $1);
+ }
+ }
+ }
+ close($fh);
+
+ return (\@def_start_lvls, \@def_stop_lvls);
+}
+
+sub lsb_header_for_script {
+ my $name = shift;
+
+ foreach my $file ("/etc/insserv/overrides/$name", "/etc/init.d/$name",
+ "/usr/share/insserv/overrides/$name") {
+ return $file if -s $file;
+ }
+
+ error("cannot find a LSB script for $name");
+}
+
+sub cmp_args_with_defaults {
+ my ($name, $act) = (shift, shift);
+ my ($lsb_start_ref, $lsb_stop_ref, $arg_str, $lsb_str);
+ my (@arg_start_lvls, @arg_stop_lvls, @lsb_start_lvls, @lsb_stop_lvls);
+
+ ($lsb_start_ref, $lsb_stop_ref) = parse_def_start_stop("/etc/init.d/$name");
+ @lsb_start_lvls = @$lsb_start_ref;
+ @lsb_stop_lvls = @$lsb_stop_ref;
+ return if (!@lsb_start_lvls and !@lsb_stop_lvls);
+
+ if ($act eq 'defaults') {
+ @arg_start_lvls = (2, 3, 4, 5);
+ @arg_stop_lvls = (0, 1, 6);
+ } elsif ($act eq 'start' or $act eq 'stop') {
+ my $start = $act eq 'start' ? 1 : 0;
+ my $stop = $act eq 'stop' ? 1 : 0;
+
+ # The legacy part of this program passes arguments starting with
+ # "start|stop NN x y z ." but the insserv part gives argument list
+ # starting with sequence number (ie. strips off leading "start|stop")
+ # Start processing arguments immediately after the first seq number.
+ my $argi = $_[0] eq $act ? 2 : 1;
+
+ while (defined $_[$argi]) {
+ my $arg = $_[$argi];
+
+ # Runlevels 0 and 6 are always stop runlevels
+ if ($arg eq 0 or $arg eq 6) {
+ $start = 0; $stop = 1;
+ } elsif ($arg eq 'start') {
+ $start = 1; $stop = 0; $argi++; next;
+ } elsif ($arg eq 'stop') {
+ $start = 0; $stop = 1; $argi++; next;
+ } elsif ($arg eq '.') {
+ next;
+ }
+ push(@arg_start_lvls, $arg) if $start;
+ push(@arg_stop_lvls, $arg) if $stop;
+ } continue {
+ $argi++;
+ }
+ }
+
+ if ($#arg_start_lvls != $#lsb_start_lvls or
+ join("\0", sort @arg_start_lvls) ne join("\0", sort @lsb_start_lvls)) {
+ $arg_str = @arg_start_lvls ? "@arg_start_lvls" : "none";
+ $lsb_str = @lsb_start_lvls ? "@lsb_start_lvls" : "none";
+ warning "$name start runlevel arguments ($arg_str) do not match",
+ "LSB Default-Start values ($lsb_str)";
+ }
+ if ($#arg_stop_lvls != $#lsb_stop_lvls or
+ join("\0", sort @arg_stop_lvls) ne join("\0", sort @lsb_stop_lvls)) {
+ $arg_str = @arg_stop_lvls ? "@arg_stop_lvls" : "none";
+ $lsb_str = @lsb_stop_lvls ? "@lsb_stop_lvls" : "none";
+ warning "$name stop runlevel arguments ($arg_str) do not match",
+ "LSB Default-Stop values ($lsb_str)";
+ }
+}
+
+sub insserv_toggle {
+ my ($dryrun, $act, $name) = (shift, shift, shift);
+ my (@toggle_lvls, $start_lvls, $stop_lvls, @symlinks);
+ my $lsb_header = lsb_header_for_script($name);
+
+ # Extra arguments to disable|enable action are runlevels. If none
+ # given parse LSB info for Default-Start value.
+ if ($#_ >= 0) {
+ @toggle_lvls = @_;
+ } else {
+ ($start_lvls, $stop_lvls) = parse_def_start_stop($lsb_header);
+ @toggle_lvls = @$start_lvls;
+ if ($#toggle_lvls < 0) {
+ error("$name Default-Start contains no runlevels, aborting.");
+ }
+ }
+
+ # Find symlinks in rc.d directories. Refuse to modify links in runlevels
+ # not used for normal system start sequence.
+ for my $lvl (@toggle_lvls) {
+ if ($lvl !~ /^[S2345]$/) {
+ warning("$act action will have no effect on runlevel $lvl");
+ next;
+ }
+ push(@symlinks, $_) for glob("/etc/rc$lvl.d/[SK][0-9][0-9]$name");
+ }
+
+ if (!@symlinks) {
+ error("no runlevel symlinks to modify, aborting!");
+ }
+
+ # Toggle S/K bit of script symlink.
+ for my $cur_lnk (@symlinks) {
+ my $sk;
+ my @new_lnk = split(//, $cur_lnk);
+
+ if ("disable" eq $act) {
+ $sk = rindex($cur_lnk, '/S') + 1;
+ next if $sk < 1;
+ $new_lnk[$sk] = 'K';
+ } else {
+ $sk = rindex($cur_lnk, '/K') + 1;
+ next if $sk < 1;
+ $new_lnk[$sk] = 'S';
+ }
+
+ if ($dryrun) {
+ printf("rename(%s, %s)\n", $cur_lnk, join('', @new_lnk));
+ next;
+ }
+
+ rename($cur_lnk, join('', @new_lnk)) or error($!);
+ }
+}
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