-#!/usr/bin/perl
+#!/usr/bin/perl -w
-$base= "/var/named";
-$conf= "$base/conf";
-$etcfile= "/etc/named/zones-rgc";
+use IO::File;
+use Data::Dumper;
-$check= 1;
-$progress= 1;
+$etcfile= "/etc/bind/chiark-conf-gen.zones";
+$where= '<built-in>';
-while ($ARGV[0] =~ m/^\-/) {
+$mode= '';
+$verbosity= 1;
+$fromroot= 0;
+
+while (@ARGV && $ARGV[0] =~ m/^\-/) {
$_= shift @ARGV;
- last if m/^\-\-?$/;
- while (m/^\-./) {
- if (s/^\-f/-/) { $usage=0; $check=0; $install++; }
- elsif (s/^\-y/-/) { $usage=0; $check=1; $install++; }
- elsif (s/^\-n/-/) { $usage=0; $check=1; $install=0; }
- elsif (s/^\-h/-/) { $hostdelg=1; $hostzone=0; }
- elsif (s/^\-z/-/) { $hostdelg=1; $hostzone=1; }
- elsif (s/^\-q/-/) { $progress=0; }
- else { $usage=1; break; }
+ if (s/^\-\-//) {
+ last if m/^$/;
+ if (m/^quiet$/) { $verbosity=0; }
+ elsif (m/^verbose$/) { $verbosity=2; }
+ elsif (m/^root$/) { $fromroot=1; }
+ elsif (m/^(yes|no|force)$/) { m/^./; $mode= $&; }
+ elsif (m/^config$/) { $etcfile= loarg(); $where= '--config option'; }
+ else { usageerr("unknown option --$_"); }
+ } else {
+ s/^\-//;
+ last if m/^$/;
+ while (m/^./) {
+ if (s/^[ynf]//) { $mode=$&; }
+ elsif (s/^r//) { $fromroot=1; }
+ elsif (s/^v//) { $verbosity=2; }
+ elsif (s/^q//) { $verbosity=0; }
+ elsif (s/^C//) { $etcfile= soarg(); $where= '-C option'; }
+ else { usageerr("unknown option -$&"); }
+ }
}
}
-die
-"usage: named-conf-regen -f|-y|-n [-h|-z]\n".
+sub loarg() { usageerr("missing option value") if !@ARGV; return shift @ARGV; }
+sub soarg() { my ($rv); $rv=$_; $_=''; return length $rv ? $rv : loarg(); }
+
+usageerr("must specify either -f|-y|-n or zones (and not both)")
+ if !!$mode == !!@ARGV;
+
+sub usageerr ($) {
+ die
+"$_[0]
+usage: named-conf-regen [-rvq] -f|-y|-n|<zone>...\n".
"operation modes:\n".
-" -f install without checking -ff and then ndc reload\n".
-" -y check and install -yy and then ndc reload\n".
-" -n check only\n".
+" -f --force install without checking\n".
+" -y --yes check and install\n".
+" -n --no check only\n".
"additional options:\n".
-" -h check output from host -C\n".
-" -z check output from host -C and host -val\n".
- if $usage;
-
-beginfile('secondary.zones');
-open E, "< $etcfile" or die "$0: open $etcfile: $!\n";
-for (;;) {
- $!=0; defined $_=<E> or die "$0: read $etcfile $!\n";
- s/^\s+//; chomp; s/\s+$//;
- next if m/^\#/;
- last if m/^end$/;
- if (m/^myname\s+(\S.*\S)/) {
- @mynames= split /\s+/, $1;
- } elsif (m/^(secondary|backup|unoff)\s+(\S+)\s+([0-9. \t]+)$/) {
- $style= $1;
- $zone= $2;
- @servers= split /\s+/, $3;
- $file= "slave/$zone";
- progress();
- check();
- } else {
- die "$0: $etcfile:$.: syntax error in \`$_'\n";
+" -r --root check all the way back to the root\n".
+" -q --quiet no output for OK zones\n".
+" -v --verbose extra verbose\n";
+}
+
+cfg_fail("config filename $etcfile should have been absolute path of a file")
+ unless $etcfile =~ m,^/, && $etcfile !~ m,/$,;
+
+$default_dir= $etcfile;
+$default_dir =~ s,/[^/]+$,,;
+
+$slave_dir= 'slave';
+$slave_prefix= '';
+$slave_suffix= '';
+@self_ns= @self_soa= ();
+%zone_cfg= ();
+@zone_cfg_list= ();
+$output= '';
+$default_output= '';
+%output_contents= ();
+
+read_config($etcfile);
+
+print Dumper(@zone_cfg_list), Dumper(%zone_cfg);
+
+sub cfg_fail ($) { die "$0: $where:\n $_[0]\n"; }
+
+sub read_config ($) {
+ my ($if) = @_;
+ my ($fh,$z,@self, $dir,$prefix,$suffix,$lprefix,$lsuffix);
+ local ($_,$1,$2,$3);
+
+ $fh= new IO::File $if,'r' or cfg_fail("open $if:\n $!");
+ for (;;) {
+ if (!defined($_= <$fh>)) {
+ cfg_fail("read config file $if:\n $!") if $fh->error();
+ last;
+ }
+ $where= "$if:$.";
+ s/^\s+//; chomp; s/\s+$//;
+ next if m/^\#/;
+ last if m/^end$/;
+ next unless m/\S/;
+ if (m/^self(\-ns|\-soa|)\s+(\S.*\S)/) {
+ @self= split /\s+/, $2;
+ @self_ns= @self if $1 ne '-soa';
+ @self_soa= @self if $1 ne '-ns';
+ } elsif (m/^primary\-dir\s+(\S+)((?:\s+(\S+))??:\s+(\S+))?$/) {
+ ($dir, $prefix, $suffix) = (qualify($1),$2,$3);
+ $suffix= '_db' if !length $suffix;
+ opendir D, $dir or cfg_fail("open primary-dir $dir:\n $!");
+ $lprefix= length $prefix; $lsuffix= length $suffix;
+ while ($!=0, $_= readdir D) {
+ next if m/^\./ && !$lprefix;
+ next unless length > $lprefix+$lsuffix;
+ next unless substr($_,0,$lprefix) eq $prefix;
+ next unless substr($_,length($_)-$lsuffix) eq $suffix;
+ $z= substr($_,$lprefix,length($_)-($lprefix+$lsuffix));
+ zone_conf($z,'primary',"$dir/$_");
+ }
+ $! and cfg_fail("read primary-dir $dir:\n $!");
+ closedir D or cfg_fail("close primary-dir $dir:\n $!");
+ } elsif (m/^primary\s+(\S+)\s+(\S+)$/) {
+ zone_conf($1,'primary',qualify($2));
+ } elsif (m/^secondary\s+(\S+)\s+([0-9.\t]+)$/) {
+ zone_conf($1,'secondary','',$2);
+ } elsif (m/^stealth\s+(\S+)\s+([0-9. \t]+)$/) {
+ zone_conf($1,'stealth','',split /\s+/, $2);
+ } elsif (m/^slave\-dir\s+(\S+)((?:\s+(\S+))??:\s+(\S+))?$/) {
+ ($slave_dir, $slave_prefix, $slave_suffix) = (qualify($1),$2,$3);
+ } elsif (m/^output\s+bind8\+(\S+)$/) {
+ cfg_fail("default output may not apply to only some zones")
+ if @zone_cfg_list && length $default_output;
+ set_output(qualify($1));
+ } elsif (m/^include\s+(\S+)$/) {
+ read_config($1);
+ } else {
+ cfg_fail("unknown configuration directive".
+ " or incorrect syntax or arguments");
+ }
+ }
+ $fh->close or cfg_fail("close config file $if:\n $!");
+}
+
+sub qualify ($) {
+ my ($i) = @_;
+ $i= "$default_dir/$i" unless $i =~ m,^/,;
+}
+
+sub zone_conf ($$@) {
+ my ($zone,$style,$file,@servers) = @_;
+ $file= qualify("$slave_dir/$slave_prefix".$zone.$slave_suffix)
+ unless length $file;
+ if (!length $output) {
+ $default_output= qualify('chiark-conf-gen.bind8')
+ unless length $default_output;
+ set_output($default_output);
}
+ cfg_fail("redefined zone $zone") if exists $zone_cfg{$zone};
+ $zone_cfg{$zone}{'file'}= $file;
+ $zone_cfg{$zone}{'style'}= $style;
+ $zone_cfg{$zone}{'servers'}= @servers;
+ $zone_cfg{$zone}{'output'}= $output;
+ push @zone_cfg_list, $zone;
+}
+
+sub set_output($) {
+ my ($newout) = @_;
+ $output= $newout;
+ $output_contents{$output}= '';
}
+__DATA__
+
+
+
sub lookup ($$) {
my ($type,$domain) = @_;
my ($c,@result);
- defined($c=open ADH, "-|") or die "$0: fork adnshost: $!\n";
+ defined($c=open ADH, "-|") or die "$0: fork adnshost:\n $!\n";
if (!$c) {
exec 'adnshost','+Do','+Dt','+Dc','-Cf',"-t$type",
'-',"$domain.";
- die "$0: exec adnshost: $!\n";
+ die "$0: exec adnshost:\n $!\n";
}
@result= <ADH>;
chomp @result;
for $super_ns (@super_ns) {
@deleg_ns= ();
open DIG, "dig @$super_ns. -t ns +norecurse $zone."
- or die "$0: fork for dig: $!\n";
+ or die "$0: fork for dig:\n $!\n";
while (<DIG>) {
endfile
-chdir "$base/primary" or die "$0: chdir $base/primary: $!";
+chdir "$base/primary" or die "$0: chdir $base/primary:\n $!";
beginfile('primary.zones');
for $f (<*_db>) {
sub beginfile ($) {
$currentfile= $_[0];
$currentfile_opened= $install ? "$conf/$currentfile.new" : "/dev/null";
- open CFF, "> $toopen" or die "$0: begin $currentfile_opened: $!\n";
+ open CFF, "> $toopen" or die "$0: begin $currentfile_opened:\n $!\n";
}
endfile () {
- close CFF or die "$0: close $currentfile_opened: $!\n";
+ close CFF or die "$0: close $currentfile_opened:\n $!\n";
push @files, $currentfile;
}
sub installfiles () {
return unless $install;
- chdir $conf or die "$0: chdir $conf: $!\n";
+ chdir $conf or die "$0: chdir $conf:\n $!\n";
for $f (@files) {
- rename "$f.new", $f or die "$0: install new $f: $!\n";
+ rename "$f.new", $f or die "$0: install new $f:\n $!\n";
}
}
~ian / chiark-utils.git / blobdiff