/usr/sbin/update-rc.d is in openrc 0.13.1-4.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 | #! /usr/bin/perl
#
# update-rc.d to support OpenRC.
# modified from update-rc.d of Debian by Bill Wang <freecnpro@gmail.com>
use strict;
use warnings;
# 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);
}
exit openrc_updatercd(@ARGV);
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);
}
## Dependency based
sub openrc_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) {
# let rc-update handle the dangling symlinks
my $rc = system("rc-update", "-qqa", "delete", $scriptname);
exit 0;
} 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.
my $rln = cmp_args_with_defaults($scriptname, $action, @args);
exit 0 if (!$rln);
if ( -f "/etc/init.d/$scriptname") {
if("stop" ne $action){
my $rc = system("rc-update", "add", $scriptname, rlconv($rln)) >> 8;
error_code($rc, "rc-update 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) {
my @rl = rlconv(join(' ', @args));
if("disable" eq $action){
my $rc = system("rc-update", "delete", $scriptname, @rl) >> 8;
error_code($rc, "rc-update rejected the script header") if $rc;
exit $rc;
}else{
my $rc = system("rc-update", "add", $scriptname, @rl) >> 8;
error_code($rc, "rc-update 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 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);
my $default_msg = ($act eq 'defaults') ? 'default' : '';
($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";
$lsb_str = @lsb_start_lvls ? "@lsb_start_lvls" : "none";
warning "$default_msg start runlevel arguments ($arg_str) do not match",
"$name 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";
$lsb_str = @lsb_stop_lvls ? "@lsb_stop_lvls" : "none";
warning "$default_msg stop runlevel arguments ($arg_str) do not match",
"$name Default-Stop values ($lsb_str)";
}
return join(" ", @lsb_start_lvls);
}
sub rlconv {
my @nrl;
my $is_default = 0;
my $runlevels = shift;
for my $rl (split(' ', $runlevels)){
if($rl =~ /^[Ss]$/){
$rl = "sysinit";
}elsif("1" eq $rl){
$rl = "recovery";
}elsif("0" eq $rl or "6" eq $rl){
$rl = "off";
}else{
$is_default++;
if($is_default == 1){
push(@nrl, "default");
next;
}else{
next;
}
}
push(@nrl, $rl);
}
return @nrl;
}
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