X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=chiark-utils.git;a=blobdiff_plain;f=scripts%2Fnamed-conf;h=4f3536ba4bbcb9457a5ebf165f6f33ee3d10ebe5;hp=8dc922a5f156c655840f36bfa0f608c71ab09f77;hb=d9d8b1a736946ae91c521133dc32d5e1d6b5e506;hpb=5065bee2ccdc8e017c763b4ede7102b4c20f8836

diff --git a/scripts/named-conf b/scripts/named-conf
index 8dc922a..4f3536b 100755
--- a/scripts/named-conf
+++ b/scripts/named-conf
@@ -1,20 +1,77 @@
-fixme implement --nothing by checking $mode='x';
-fixme implement ~
-fixme implement .* on self-soa self-ns
-
 #!/usr/bin/perl -w
+# This is chiark-named-conf, which is Copyright 2002 Ian Jackson.
+#
+# chiark-named-conf and its manpage are free software; you can
+# redistribute it and/or modify them under the terms of the GNU
+# General Public License as published by the Free Software Foundation;
+# either version 3, or (at your option) any later version.
+# 
+# chiark-named-conf and its manpage are distributed in the hope that
+# it will be useful, but WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+# PURPOSE.  See the GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 use strict;
 use IO::File;
 use Data::Dumper;
 use POSIX;
-use Fcntl;
-
-use vars qw($quis
+use Fcntl qw(:DEFAULT :flock);
+
+# bastard Perl wants me to do this now !
+sub loarg();
+sub soarg();
+sub usageerr ($);
+sub cfg_fail ($);
+sub read_config ($);
+sub qualify ($);
+sub bad_modifiers ($);
+sub zone_conf ($$$$$@);
+sub set_output($);
+sub progress ($$);
+sub verbose ($);
+sub process_zones (@);
+sub zone_warning ($$);
+sub zone_warnmore ($);
+sub zone_check_full ();
+sub zone_reset();
+sub zone_investigate();
+sub zone_check_nsrrset ($$$$);
+sub zone_ns_name ($$);
+sub zone_server_queue ($$$$$);
+sub zone_server_addr ($$$$$);
+sub zone_check_soa ($$$$);
+sub zone_consistency();
+sub zone_servers_ok ();
+sub zone_consistency_set ($%);
+sub zone_check_local ();
+sub zone_servers_simplefind ();
+sub zone_server_simple ($$$);
+sub zone_style ($$);
+sub mail_zone_before ();
+sub mail_zone_after ();
+sub pmail ($);
+sub ptime ($);
+sub mail_zone_mail ();
+sub zone_output ();
+sub output_files ();
+sub debug_dump ($);
+sub debug_trace ($);
+sub has_suffix_of ($$);
+sub lookup ($$$$);
+sub dig (&$$$);
+sub domain_canon ($$);
+
+use vars qw($quis $stdout_fh $stderr_fh
 	    $mode $doall $domail
 	    $etcfile $where
 	    $debug $needglue $localonly $repeat $verbosity
-	    $progress_fh);
+	    $admin $mail_state_dir $mail_max_warnfreq
+	    $progress_fh $warn_fh $modifiers
+	    %group2modcmd %group2used);
 
 $quis= $0; $quis =~ s,.*/,,;
 
@@ -29,9 +86,14 @@ $verbosity= 2;
 $admin=''; $mail_state_dir=''; $mail_max_warnfreq= 50;
 $repeat= 0;
 $domail= '';
-$progress_fh= 'STDOUT';
-$warn_fh= 'STDERR';
+$modifiers= '';
+$group2modcmd{'foreign'}= '$!*@?';
+$group2used{'foreign'}= 1;
 
+($progress_fh= $stdout_fh= new_from_fd IO::Handle(1,'w') and
+ $warn_fh= $stderr_fh = new_from_fd IO::Handle(2,'w'))
+    or die "$quis: setup standard filehandles: $!\n";
+    
 use vars qw($dig_owner $dig_type $dig_rdata);
 
 while (@ARGV && $ARGV[0] =~ m/^\-/) {
@@ -40,7 +102,10 @@ while (@ARGV && $ARGV[0] =~ m/^\-/) {
 	last if m/^$/;
 	if (m/^(yes|no|force)$/) { m/^./; $mode= $&; $domail=''; }
 	elsif (m/^nothing$/) { $mode= 'x'; $domail=''; }
-	elsif (m/^mail\-(first|middle|final)/) { $mode='n'; $domail=$1; }
+	elsif (m/^mail\-(first|middle|final|final\-test)$/) {
+	    $mode='n';
+	    $domail=$1;
+	}
 	elsif (m/^all$/) { $doall=1; }
 	elsif (m/^config$/) { $etcfile= loarg(); $where= '--config option'; }
 	elsif (m/^glueless$/) { $needglue=0; }
@@ -59,6 +124,11 @@ while (@ARGV && $ARGV[0] =~ m/^\-/) {
 	    elsif (s/^D//) { $debug++; }
 	    elsif (s/^g//) { $needglue=0; }
 	    elsif (s/^l//) { $localonly=1; }
+	    elsif (s/^m(\w+)(\W+)$//) {
+		my ($g,$m) = ($1,$2);
+		$group2modcmd{$g}=$m;
+		usageerr("modifiers $m for group $g: $@") if bad_modifiers($m);
+	    }
 	    elsif (s/^q//) { $verbosity--; }
 	    elsif (s/^r//) { $repeat=1; }
 	    elsif (s/^v//) { $verbosity++; }
@@ -74,7 +144,7 @@ usageerr("-q may be specified at most twice") if $verbosity<0;
 usageerr("-v may be specified at most once") if $verbosity>3;
 usageerr("-D may be specified at most twice") if $debug>2;
 usageerr("must specify either -f|-y|-n or zones (and not both)")
-    if !!$mode == !!@ARGV;
+    if !!$mode == !!@ARGV && !$domail;
 
 sub usageerr ($) {
     die <<END;
@@ -129,15 +199,17 @@ $default_output= '';
 %output_contents= ();
 
 use vars qw($check $install);
-$check= $mode !~ m/^f/;
+$check= $mode !~ m/^[fx]/;
 $install= $mode =~ m/^[yf]/;
 
 read_config($etcfile);
 debug_dump('@zone_cfg_list %zone_cfg');
-process_zones($mode ? @zone_cfg_list : @ARGV);
+process_zones(!@ARGV ? @zone_cfg_list : @ARGV);
 debug_dump('%output_contents');
 output_files() if $install;
 
+$stdout_fh->close or die "$quis: write messages to stdout: $!\n";
+$stderr_fh->close or die "$quis: write messages to stderr: $!\n";
 exit 0;
 
 #-------------------- configuration reading
@@ -146,7 +218,7 @@ sub cfg_fail ($) { die "$quis: $where:\n $_[0]\n"; }
 
 sub read_config ($) {
     my ($if) = @_;
-    my ($fh,$z,@self,$before,
+    my ($fh,$z,@self,$before,$group,
 	$mod,$dir,$prefix,$suffix,$subfile,$lprefix,$lsuffix,$zf);
     local ($_);
 
@@ -177,13 +249,15 @@ sub read_config ($) {
 	} elsif (m/^forbid\-addr(?:\s+([0-9. \t]+))?/) {
 	    @forbid_addr= defined $1 ? split /\s+/, $1 : ();
 	} elsif (m,^
-		 primary\-dir ([\@*?~]*)
+		 primary\-dir (\W*)
 		 \s+ (\S+)/([^/ \t]*)
 		 (?: \s+ ([^/ \t]*) (?: (/.+) )?
 		  )?
 		 $,x) {
 	    ($mod, $dir, $prefix, $suffix, $subfile) =
 		($1,qualify($2),$3,$4,$5);
+	    cfg_fail("modifiers $mod for directory $dir: $@")
+		if bad_modifiers($mod);
 	    $suffix= '' if !defined $suffix;
 	    $subfile= '' if !defined $subfile;
 	    $suffix= '_db' if !length $suffix && !length $subfile;
@@ -205,12 +279,21 @@ sub read_config ($) {
 		zone_conf($z,'primary','p',$mod,$zf);
 	    }
 	    closedir D or cfg_fail("close primary-dir $dir:\n $!");
-	} elsif (m/^primary([\@*?~]*)\s+(\S+)\s+(\S+)$/) {
+	} elsif (m/^primary(\W*)\s+(\S+)\s+(\S+)$/) {
 	    zone_conf($2,'primary','p',$1,qualify($3));
-	} elsif (m/^published([\@*?~]*)\s+(\S+)\s+([0-9.\t]+)$/) {
+	} elsif (m/^published(\W*)\s+(\S+)\s+([0-9.\t]+)$/) {
 	    zone_conf($2,'published','s',$1,'',$3);
-	} elsif (m/^stealth([\@*?~]*)\s+(\S+)\s+([0-9. \t]+)$/) {
+	} elsif (m/^stealth(\W*)\s+(\S+)\s+([0-9. \t]+)$/) {
 	    zone_conf($2,'stealth','u',$1,'',split /\s+/, $3);
+	} elsif (m/^modifiers\s+(\W+)(?:\s+(\w+))$/) {
+	    ($mod,$group) = ($1,$2);
+	    cfg_fail("modifiers $mod for group $group: $@")
+		if bad_modifiers($mod);
+	    if (exists $group2modcmd{$group}) {
+		$mod= $group2modcmd{$group};
+		$group2used{$group}++;
+	    }
+	    $modifiers= $mod;
 	} elsif (m/^slave\-dir\s+(\S+)(?:(?:\s+(\S+))\s+(\S+))?$/) {
 	    ($slave_dir, $slave_prefix, $slave_suffix) = (qualify($1),$2,$3);
 	    $slave_prefix='' if !defined $slave_prefix;
@@ -225,7 +308,7 @@ sub read_config ($) {
 	    $admin=$1;
 	} elsif (m/^mail\-state\-dir\s+(\S+)$/) {
 	    $mail_state_dir= $1;
-	} elsif (m/^mail\-max\-warnfreq\s+(\d{1,3}(?:\.\d{0,5})?+)$/) {
+	} elsif (m/^mail\-max\-warnfreq\s+(\d{1,3}(?:\.\d{0,5})?)$/) {
 	    cfg_fail("mail-max-warnfreq must be <=100") if $1>100;
 	    $mail_max_warnfreq= $1;
 	} else {
@@ -234,6 +317,11 @@ sub read_config ($) {
 		     " \`$_'");
 	}
     }
+    foreach $group (keys %group2modcmd) {
+	next if exists $group2used{$group};
+	cfg_fail("command line specifies modifier group $group".
+		 " but missing in configuration file");
+    }
     $fh->close or cfg_fail("close config file $if:\n $!");
 }
 
@@ -243,6 +331,19 @@ sub qualify ($) {
     return $i;
 }
 
+sub bad_modifiers ($) {
+    local ($_) = @_;
+    if (!eval {
+	die "bad modifier $&" if m/[^!*\$\@~?]/;
+	die "repeated modifier $1" if m/(.).*\1/;
+	1;
+    }) {
+	$@ =~ s/\n//;
+	return 1;
+    }
+    return 0;
+}
+
 sub zone_conf ($$$$$@) {
     my ($zone,$style,$sabbr,$mod,$file,@servers) = @_;
     my ($sfx,$aref);
@@ -259,10 +360,12 @@ sub zone_conf ($$$$$@) {
     $zone_cfg{$zone}{'where'}= $where;
     $zone_cfg{$zone}{'file'}= $file;
     $zone_cfg{$zone}{'style_p'}= $style.$mod;
-    $zone_cfg{$zone}{'s'}= $sabbr.$mod; # p)rimary s)econdary u)npub f)oreign
+    $zone_cfg{$zone}{'s'}= "$sabbr $mod $modifiers";
+    # p)rimary s)econdary u)npub f)oreign
+    # followed by modifiers, first per-zone, then default
     $zone_cfg{$zone}{'servers'}= [ @servers ];
     if ($domail) {
-	length $admin_email && length $mail_state_dir or
+	length $admin && length $mail_state_dir or
 	    cfg_fail("mailing but failed to specify admin".
 		     " or mail-state-dir before zone");
 	$zone_cfg{$zone}{'admin'}= $admin;
@@ -275,6 +378,9 @@ sub zone_conf ($$$$$@) {
 	    if $sfx =~ m/^self/;
 	$zone_cfg{$zone}{$sfx}= $aref;
     }
+    foreach $sfx (qw(self_soa self_ns)) {
+	map { s/\*$/$zone/ } @{ $zone_cfg{$zone}{$sfx} };
+    }
     $zone_cfg{$zone}{'output'}= $output;
     push @zone_cfg_list, $zone;
 }
@@ -285,197 +391,6 @@ sub set_output($) {
     $output_contents{$output}= '';
 }
 
-#-------------------- mailing
-
-use vars qw($m_base $m_lastok @m_ok @m_fail
-	    $m_info $m_time);
-
-sub mail_zone_before () {
-    $m_base= $$cfg{'maildir'}.'/'.$zone;
-    $m_lastok= '-';
-    @m_ok= ();
-    @m_fail= ();
-
-    for (;;) {
-	$m_lock= IO::File "${m_base}_lock", O_RDWR|O_CREAT, 0600
-	    or die "$quis: create lockfile ${m_base}_lock";
-	if (!flock($m_lock, LOCK_EX|LOCK_NB)) {
-	    <$m_lock> =~ m/^\d+ /;
-	    die "$quis: $zone: concurrrency? - flock $&$!\n";
-	    $m_lock->close;
-	    continue;
-	}
-	(@s1= $m_lock->fstat) or die "$quis: fstat ${m_base}_lock: $!\n";
-	(@s2= stat "${m_base}_lock") or
-	    die "$quis: stat ${m_base}_lock: $!\n";
-	last if ($s1[0] eq $s2[0] && $s1[1] eq $s2[1]);
-	$m_lock->close;
-    }
-    print $m_lock "$$        \n" or $m_lock->flush
-	die "$quis: write pid to ${m_base}_lock: $!\n";
-
-    if ($m_info= IO::File "${m_base}_info", 'r') {
-	$!=0; $_= <INFO>;
-	$_ =~ m/\n/ or die "$quis: read ${m_base}_info: $!\n";
-	m/^\d+ (\d+|-) ([0-9:]*) ([0-9:]*) / or
-	    die "$quis: ${m_base}_info malformed\n";
-	$m_lastok= $1;
-	if ($domail ne 'first') {
-	    if ($2 eq ':' && $3 eq ':') {
-		warn "$quis: $zone: mid/last run, but last".
-		    "run already done, ignoring zone\n";
-		next;
-	    }
-	    @m_ok= split /\:/, $2;
-	    @m_fail= split /\:/, $3;
-	}
-    } elsif ($! != &ENOENT) {
-	die "$quis: open ${m_base}_info: $!\n";
-    } elsif ($domail eq 'first') {
-	warn "$quis: $zone: first run, but not --mail-first,".
-	    " ignoring zone\n";
-	next;
-    }
-    if ($domail eq 'first') {
-	remove "${m_base}_history" or $!==&ENOENT
-	    or die "$quis: remove ${m_base}_history: $!\n";
-    }
-    $progress_fh= $warn_fh= new IO::File "${m_base}_history",'a',0666
-	or die "$quis: open ${m_base}_history: $!\n";
-    $m_info= new IO::File "${m_base}_info.tmp",'w',0666
-	or die "$quis: open ${m_base}_info.tmp: $!\n";
-
-    $m_time= time;
-    progress(-1, "\n".('-'x70)."\n".ptime($m_time)."\n");
-}
-
-sub mail_zone_after () {
-    if ($zone_warnings{$zone}) {
-	push @m_fail, $m_time;
-	progress(-1,"failed - $zone_warnings{$zone} warnings");
-    } else {
-	push @m_ok, $m_time;
-	$m_lastok= $m_time;
-	progress(-1,"everything is fine");
-    }
-    close $progress_fh or die "$quis: close ${m_base}_history: $!\n";
-    $progress_fh= $warn_fh= 'STDERR';
-
-    if ($domail eq 'final') {
-	if (100*@m_fail <= $$cfg{'mailmwarn'}*(@m_mail + @m_ok)) {
-	    printf " %-40s ok\n" or die "$quis: mail ok report: $!\n";
-	} elsif ($$cfg{'s'} =~ m/\@.*\@/) {
-	    printf " %-40s mail suppressed\n"
-		or die "$quis: mail suppress report: $!\n";
-	} else {
-	    mail_zone_mail();
-	}
-    }	    
-
-    @m_fail= @m_ok= ('','')
-	if $domail eq 'final';
-
-    printf $m_info "%s %s %s %s \n",
-        $m_time, $m_lastok, join(':',@m_ok), join(':',@m_fail)
-	    or die "$quis: write new ${m_base}_info: $!\n";
-    $m_info->close or die "$quis: close new ${m_base}_info: $!\n";
-    rename "${m_base}_info.tmp", "${m_base}_info"
-	or die "$quis: install new ${m_base}_info: $!\n";
-    $m_lock->close;
-}
-    
-
-sub pmail ($) { print $m_m $_[0] or die "$quis: write ${m_base}_mail: $!\n"; }
-sub ptime ($) { my ($time)=@_; return gmtime($time)." GMT ($time)"; }
-
-sub mail_zone_mail () {
-    my ($log, $zone_to, $zterr, $c, $r);
-    $m_m= new IO::File, "${m_base}_mail", 'w', 0666
-	or die "$quis: create ${m_base}_mail: $!\n";
-    $zone_to=''; $zterr='';
-    if ($$cfg{'s'} !~ m/[\@u]/) {
-	eval {
-	    $_= lookup($zone,'soa','0','problem-addr');
-	    m/\n\n/ and die "multiple soas\n";
-	    m/^\S+ (\S.*\@\S+) [0-9 ]+$/ or
-		die "bad soa \`$_'\n";
-	    $zone_to= $1;
-	};
-	$zterr= $@;
-	$zterr =~ s/\n$/;
-    }
-    pmail <<END
-From: zone check system <$$cfg{'admin'}>
-Subject: $zone - configuration problems report
-END
-;
-    pmail("To: ");
-    pmail("SOA MNAME for $zone <$zone_to>\nCC: ")
-	if length($zone_to);
-    pmail($$cfg{'admin'}."\n\n");
-    pmail <<END
-You are receiving this mail because your email address is listed
-in the SOA (Start Of Authority) record for $zone
-in the DNS, which means you are supposedly the DNS administrator
-responsible for this zone.  This report is generated automatically
-on behalf of $$cfg{'admin'}, who
-is the administrator for a server for the zone.  Please contact
-them if you have any problem with this report.
-
-END
-if length $zone_to;
-    pmail <<END
-Sent to $$cfg{'admin'} since SOA MNAME unavailable:
-$zterr
-
-END
-if length $zterr;
-    pmail <<END
-The zone has had configuration errors or persistent operational
-problems during recent checks.  See the logs below for details.
-
-Check history for $zone:
-END
-;
-    if ($m_lastok ne '-') {
-	pmail(" Last seen to be fine: ".ptime($m_lastok)."\n");
-    } else {
-	pmail(" No record of this zone ever being fine.\n");
-    }
-    for $t (@m_fail) {
-	pmail(" Errors/warnings at: ".ptime($t)."\n");
-    }
-    for $t (@m_ok) {
-	pmail(" Everything in order at: ".ptime($t)."\n");
-    }
-    pmail("\n");
-    $log= new IO::File "${m_base}_history",'r'
-	or die "$quis: reopen ${m_base}_history: $!";
-    undef $/;
-    pmail($log);
-    $/= "\n";
-    $log->error && $log->close
-	or die "$quis: reread or close ${m_base}_log: $!";
-    $m_m->close or die "$quis: close ${m_base}_mail: $!\n";
-    $m_m= new IO::File "${m_base}_mail"
-	or die "$quis: reopen ${m_base}_mail: $!";
-
-    defined($c= fork) or die "$quis: fork for mail: $!\n";
-    if (!$c) {
-	open STDIN, "<& ${m_m}" or die "$quis - sendmail: dup for stdin: $!\n";
-	exec '/usr/sbin/sendmail','-odq','-oee','-oi',
-	    'ijackson@chiark.greenend.org.uk'; # should be -t
-	die "$quis - sendmail: exec: $!\n";
-    }
-    $m_m->close;
-    $!=0; $r= waitpid $c,0;
-    $r == $c or die "$quis: waitpid sendmail ($c): $r $!";
-    $? and warn "$quis: sendmail failed: $?\n";
-
-    printf " %-40s %s\n", $zone, $zone_to or
-	die "$quis: write mailing report: $!\n";
-}
-
 #-------------------- checking
 
 use vars qw($zone $cfg $warnings %zone_warnings);
@@ -496,14 +411,15 @@ sub process_zones (@) {
     foreach $zone (@zones) {
 	$cfg= $zone_cfg{$zone} || {
 	    'style_p' => 'foreign',
-	    's' => 'f',
+	    's' => "f $group2modcmd{'foreign'}",
 	    'servers' => [ ],
 	    };
 
-	mail_zone_before() if $domail;
+	mail_zone_before() or next
+	    if $domail;
 	zone_reset();
 	progress(1, sprintf "%-20s %s", $zone, $$cfg{'style_p'});
-	if ($check && ($doall || $cfg->{'s'} !~ m/\?/)) {
+	if ($check && ($doall || !zone_style('?',0))) {
 	    eval {
 		if ($localonly && $cfg->{'s'} =~ m/f/) {
 		    zone_warning("foreign zone specified with -l",'');
@@ -580,7 +496,7 @@ sub zone_investigate() {
 	%nsrrset_checked, %soa_checked, $addr, $glueless_ok,
 	$rcode, $name, $is_ns);
 
-    if ($cfg->{'s'} !~ m/\*/) {
+    if (!zone_style('*',0)) {
 	$super_zone= $zone;
 	for (;;) {
 	    debug_trace("zone $zone superzone $super_zone");
@@ -654,7 +570,7 @@ sub zone_check_nsrrset ($$$$) {
 	@glue= @{ $s2g{$s} };
 	if (!@glue) {
 	    zone_warning("glueless NS $s", $ww)
-		unless $glueless_ok || !$needglue ||
+		unless $glueless_ok || zone_style('~',!$needglue) || 
 		       grep { has_suffix_of($zone,".$_"); }
 			   @{ $cfg->{'conv_glueless'} };
 	    ($rcode,@glue)= lookup($s,'a','0',"glueless NS from $ww");
@@ -828,6 +744,223 @@ sub zone_server_simple ($$$) {
     foreach $addr (@addrs) { zone_server_addr($addr,$name,$ww,$ww,$is_soa); }
 }
 
+sub zone_style ($$) {
+    my ($stylechar, $default) = @_;
+    local ($_) = $$cfg{'s'};
+    $stylechar =~ s/\W/\\$&/ or die;
+    return m/(\S*)$stylechar/ ? $1 !~ m/\!/ : $default;
+}
+
+#-------------------- mailing
+
+use vars qw($m_base $m_lastok @m_ok @m_fail
+	    $m_info $m_time $m_lock $m_m);
+
+sub mail_zone_before () {
+    my (@s1,@s2);
+
+    $m_base= $$cfg{'maildir'}.'/'.$zone;
+    $m_lastok= '-';
+    @m_ok= ();
+    @m_fail= ();
+
+    for (;;) {
+	$m_lock= new IO::File "${m_base}_lock", O_RDWR|O_CREAT, 0600
+	    or die "$quis: create lockfile ${m_base}_lock: $!\n";
+	if (!flock($m_lock, LOCK_EX|LOCK_NB)) {
+	    <$m_lock> =~ m/^\d+ /;
+	    die "$quis: $zone: concurrrency? - flock $&$!\n";
+	    $m_lock->close;
+	    return 0;
+	}
+	(@s1= $m_lock->stat) or die "$quis: fstat ${m_base}_lock: $!\n";
+	(@s2= stat "${m_base}_lock") or
+	    die "$quis: stat ${m_base}_lock: $!\n";
+	last if ($s1[0] eq $s2[0] && $s1[1] eq $s2[1]);
+	$m_lock->close;
+    }
+    (print $m_lock "$$        \n" and $m_lock->flush)
+	or die "$quis: write pid to ${m_base}_lock: $!\n";
+
+    if ($m_info= new IO::File "${m_base}_info", 'r') {
+	$!=0; $_= <$m_info>;
+	$_ =~ m/\n/ or die "$quis: read ${m_base}_info: $!\n";
+	m/^\d+ (\d+|-) ([0-9:]*) ([0-9:]*) / or
+	    die "$quis: ${m_base}_info malformed\n";
+	$m_lastok= $1;
+	if ($domail ne 'first') {
+	    if ($2 eq ':' && $3 eq ':') {
+		warn "$quis: $zone: mid/last run, but last".
+		    "run already done, ignoring zone\n";
+		return 0;
+	    }
+	    @m_ok= split /\:/, $2;
+	    @m_fail= split /\:/, $3;
+	}
+    } elsif ($! != &ENOENT) {
+	die "$quis: open ${m_base}_info: $!\n";
+    } elsif ($domail ne 'first') {
+	warn "$quis: $zone: first run, but not --mail-first,".
+	    " ignoring zone\n";
+	return 0;
+    }
+    if ($domail eq 'first') {
+	remove "${m_base}_history" or $!==&ENOENT
+	    or die "$quis: remove ${m_base}_history: $!\n";
+    }
+    $progress_fh= $warn_fh= new IO::File "${m_base}_history",'a',0666
+	or die "$quis: open ${m_base}_history: $!\n";
+    $m_info= new IO::File "${m_base}_info.tmp",'w',0666
+	or die "$quis: open ${m_base}_info.tmp: $!\n";
+
+    $m_time= time;
+    progress(-1, "\n".('-'x70)."\n".ptime($m_time)."\n");
+    return 1;
+}
+
+sub mail_zone_after () {
+    if ($zone_warnings{$zone}) {
+	push @m_fail, $m_time;
+	progress(-1,"failed - $zone_warnings{$zone} warnings");
+    } else {
+	push @m_ok, $m_time;
+	$m_lastok= $m_time;
+	progress(-1,"everything is fine");
+    }
+    close $progress_fh or die "$quis: close ${m_base}_history: $!\n";
+    $progress_fh= $warn_fh= $stderr_fh;
+
+    if ($domail =~ m/^final/) {
+	if (100*@m_fail <= $$cfg{'mailmwarn'}*(@m_fail + @m_ok)) {
+	    printf " %-40s ok\n", $zone or die "$quis: mail ok report: $!\n";
+	} elsif (zone_style('@',0)) {
+	    printf " %-40s mail suppressed\n", $zone
+		or die "$quis: mail suppress report: $!\n";
+	} else {
+	    mail_zone_mail();
+	}
+    } else {
+	printf " %-40s %d warns. OK %s Fail %s\n",
+	    $zone,
+	    defined $zone_warnings{$zone} ? $zone_warnings{$zone} : 0,
+	    join(',', map { $_ - $m_time } @m_ok),
+	    join(',', map { $_ - $m_time } @m_fail)
+		or die "$quis: checking progress report: $!\n";
+    }
+
+    @m_fail= @m_ok= ('','')
+	if $domail =~ m/^final/;
+
+    printf $m_info "%s %s %s %s \n",
+        $m_time, $m_lastok, join(':',@m_ok), join(':',@m_fail)
+	    or die "$quis: write new ${m_base}_info: $!\n";
+    $m_info->close or die "$quis: close new ${m_base}_info: $!\n";
+    rename "${m_base}_info.tmp", "${m_base}_info"
+	or die "$quis: install new ${m_base}_info: $!\n";
+    $m_lock->close;
+}
+    
+
+sub pmail ($) {
+    print $m_m $_[0]
+	or die "$quis: write ${m_base}_mail: $!\n";
+}
+sub ptime ($) {
+    my ($time) = @_;
+    return gmtime($time)." GMT ($time)";
+}
+
+sub mail_zone_mail () {
+    my ($log, $zone_to, $zterr, $c, $r, $t, @soas);
+    $m_m= new IO::File "${m_base}_mail", 'w', 0666
+	or die "$quis: create ${m_base}_mail: $!\n";
+    $zone_to=''; $zterr='';
+    if (!zone_style("\$", $$cfg{'s'} !~ m/[ps]/)) {
+	eval {
+	    ($r,@soas)= lookup($zone,'soa','0','problem-addr');
+	    @soas==1 or die "multiple soas\n";
+	    $soas[0] =~ m/^\S+ (\S.*\@\S+) [0-9 ]+$/ or
+		die "bad soa \`$_'\n";
+	    $zone_to= $1;
+	};
+	$zterr= $@;
+	$zterr =~ s/\n$//;
+    }
+    pmail <<END
+From: zone checker <$$cfg{'admin'}>
+Subject: $zone - configuration problems report
+END
+;
+    pmail("To: ");
+    pmail("(testing!) ") if $domail ne 'final';
+    pmail("SOA MNAME for $zone <$zone_to>\nCC: ") if length($zone_to);
+    pmail($$cfg{'admin'}."\n\n");
+    pmail <<END
+You are receiving this mail because your email address is listed
+in the SOA (Start Of Authority) record for $zone
+in the DNS, which means you are supposedly the DNS administrator
+responsible for this zone.  This report is generated automatically
+on behalf of $$cfg{'admin'}, who
+is the administrator for a server for the zone.  Please contact
+them if you have any problem with this report.
+
+END
+if length $zone_to;
+    pmail <<END
+Sent to $$cfg{'admin'} since SOA MNAME unavailable:
+$zterr
+
+END
+if length $zterr;
+    pmail <<END
+The zone has had configuration errors or persistent operational
+problems during recent checks.  See the logs below for details.
+
+Recent check history for $zone:
+END
+;
+    if ($m_lastok ne '-') {
+	pmail(" Last seen to be fine: ".ptime($m_lastok)."\n");
+    } else {
+	pmail(" No record of this zone ever being fine.\n");
+    }
+    for $t (@m_fail) {
+	pmail(" Zone had problems at: ".ptime($t)."\n");
+    }
+    for $t (@m_ok) {
+	pmail(" Everything in order at: ".ptime($t)."\n");
+    }
+    pmail("\n");
+    $log= new IO::File "${m_base}_history",'r'
+	or die "$quis: reopen ${m_base}_history: $!";
+    undef $/;
+    pmail($log->getline);
+    $/= "\n";
+    (!$log->error and $log->close)
+	or die "$quis: reread or close ${m_base}_log: $!\n";
+    $log->eof or die;
+    $m_m->close or die "$quis: close ${m_base}_mail: $!\n";
+    $m_m= new IO::File "${m_base}_mail"
+	or die "$quis: reopen ${m_base}_mail: $!";
+
+    defined($c= fork) or die "$quis: fork for mail: $!\n";
+    if (!$c) {
+	defined dup2($m_m->fileno, 0)
+	    or die "$quis - sendmail: dup for stdin: $!\n";
+	exec (qw(/usr/sbin/sendmail -odb -oee -oi),
+	      ($domail eq 'final' ? '-t' : $$cfg{'admin'}));
+	die "$quis - sendmail: exec: $!\n";
+    }
+    $m_m->close;
+    $!=0; $r= waitpid $c,0;
+    $r == $c or die "$quis: waitpid sendmail ($c): $r $!";
+    $? and warn "$quis: sendmail failed: $?\n";
+
+    printf " %-40s %s\n", $zone,
+        length $zone_to ? $zone_to : 'reporting to admin'
+	    or die "$quis: write mailing report: $!\n";
+}
+
 #-------------------- outputting
 
 sub zone_output () {