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authorDamien Miller <djm@mindrot.org>2001-03-03 20:00:36 +1100
committerDamien Miller <djm@mindrot.org>2001-03-03 20:00:36 +1100
commit459ac4b688f87c5179b2d7f94dace1fd7204c568 (patch)
tree83035b2ae31a6268e73658d68d96689280a70f92 /contrib
parent9de5f058579079e0215c4c67958243d9d805e5dc (diff)
- Remove make-ssh-known-hosts.pl, ssh-keyscan is better.
Diffstat (limited to 'contrib')
-rw-r--r--contrib/make-ssh-known-hosts.pl737
1 files changed, 0 insertions, 737 deletions
diff --git a/contrib/make-ssh-known-hosts.pl b/contrib/make-ssh-known-hosts.pl
deleted file mode 100644
index 49c9f618..00000000
--- a/contrib/make-ssh-known-hosts.pl
+++ /dev/null
@@ -1,737 +0,0 @@
-#!/usr/bin/perl -w
-# -*- perl -*-
-######################################################################
-# make-ssh-known-hosts.pl -- Make ssh-known-hosts file
-# Copyright (c) 1995 Tero Kivinen
-# All Rights Reserved.
-#
-# Make-ssh-known-hosts is distributed in the hope that it will be
-# useful, but WITHOUT ANY WARRANTY. No author or distributor accepts
-# responsibility to anyone for the consequences of using it or for
-# whether it serves any particular purpose or works at all, unless he
-# says so in writing. Refer to the GNU General Public License for full
-# details.
-#
-# Everyone is granted permission to copy, modify and redistribute
-# make-ssh-known-hosts, but only under the conditions described in
-# the GNU General Public License. A copy of this license is supposed to
-# have been given to you along with make-ssh-known-hosts so you can
-# know your rights and responsibilities. It should be in a file named
-# gnu-COPYING-GPL. Among other things, the copyright notice and this notice
-# must be preserved on all copies.
-######################################################################
-# Program: make-ssh-known-hosts.pl
-# $Source: /var/cvs/openssh/contrib/Attic/make-ssh-known-hosts.pl,v $
-# Author : $Author: damien $
-#
-# (C) Tero Kivinen 1995 <Tero.Kivinen@hut.fi>
-#
-# Creation : 19:52 Jun 27 1995 kivinen
-# Last Modification : 00:07 Jul 8 1998 kivinen
-# Last check in : $Date: 2000/03/15 01:13:03 $
-# Revision number : $Revision: 1.1 $
-# State : $State: Exp $
-# Version : 1.343
-# Edit time : 242 min
-#
-# Description : Make ssh-known-host file from dns data.
-#
-# $Log: make-ssh-known-hosts.pl,v $
-# Revision 1.1 2000/03/15 01:13:03 damien
-# - Created contrib/ subdirectory. Included helpers from Phil Hands'
-# Debian package, README file and chroot patch from Ricardo Cerqueira
-# <rmcc@clix.pt>
-# - Moved gnome-ssh-askpass.c to contrib directory and reomved config
-# option.
-# - Slight cleanup to doc files
-#
-# Revision 1.6 1998/07/08 00:44:23 kivinen
-# Fixed to understand bind 8 nslookup output.
-#
-# Revision 1.5 1998/04/30 01:53:33 kivinen
-# Moved kill before close and added sending SIGINT first and
-# then 1 second sleep before sending SIGKILL.
-#
-# Revision 1.4 1998/04/17 00:39:19 kivinen
-# Changed to close ssh program filedescriptor before killing it.
-# Removed ^ from the password matching prompt.
-#
-# Revision 1.3 1997/04/17 04:21:27 kivinen
-# Changed to use 3des by default.
-#
-# Revision 1.2 1997/03/26 07:14:01 kivinen
-# Added EWOULDBLOCK.
-#
-# Revision 1.1.1.1 1996/02/18 21:38:10 ylo
-# Imported ssh-1.2.13.
-#
-# Revision 1.4 1995/10/02 01:23:45 ylo
-# Ping packet size fixes from Kivinen.
-#
-# Revision 1.3 1995/08/29 22:37:39 ylo
-# Now uses GlobalKnownHostsFile and UserKnownHostsFile.
-#
-# Revision 1.2 1995/07/15 13:26:37 ylo
-# Changes from kivinen.
-#
-# Revision 1.1.1.1 1995/07/12 22:41:05 ylo
-# Imported ssh-1.0.0.
-#
-#
-#
-# If you have any useful modifications or extensions please send them to
-# Tero.Kivinen@hut.fi
-#
-######################################################################
-# initialization
-
-require 5.000;
-use Getopt::Long;
-use FileHandle;
-use POSIX;
-use Socket;
-use Fcntl;
-
-$version = ' $Id: make-ssh-known-hosts.pl,v 1.1 2000/03/15 01:13:03 damien Exp $ ';
-
-$command_line = "$0 ";
-foreach $a (@ARGV) {
- $command_line .= $a . " ";
-}
-STDERR->autoflush(1);
-
-######################################################################
-# default values for options
-
-$debug = 5;
-$defserver = '';
-$bell='\a';
-$public_key = '/etc/ssh_host_key.pub';
-$private_ssh_known_hosts = "/tmp/ssh_known_hosts$$";
-$timeout = 60;
-$ping_timeout = 3;
-$passwordtimeout = undef;
-$trustdaemon = 1;
-$domainnamesplit = 0;
-$recursive = 1;
-
-######################################################################
-# Programs and their options
-
-$nslookup = "nslookup";
-
-$ssh="ssh -a -c 3des -x -o 'ConnectionAttempts 1' -o 'FallBackToRsh no' -o 'GlobalKnownHostsFile /dev/null' -o 'KeepAlive yes' -o 'StrictHostKeyChecking no' -o 'UserKnownHostsFile $private_ssh_known_hosts'";
-$sshdisablepasswordoption="-o 'BatchMode yes' -o 'PasswordAuthentication no'";
-
-######################################################################
-# Cleanup and initialization
-
-unlink($private_ssh_known_hosts);
-$sockaddr = 'S n a4 x8';
-($junk, $junk, $sshport) = getservbyname("ssh", "tcp");
-if (!defined($sshport)) {
- $sshport = 22;
-}
-($tcpprotoname, $junk, $tcpproto) = getprotobyname('tcp');
-defined($tcpprotoname) || die "getprotobyname : $!";
-
-######################################################################
-# Parse options
-
-GetOptions("initialdns=s", "server=s", "subdomains=s",
- "debug=i", "timeout=i", "passwordtimeout=i",
- "trustdaemon!", "domainnamesplit", "silent",
- "nslookup=s", "pingtimeout=i", "recursive!",
- "keyscan",
- "ssh=s")
- || die "Getopt : $!";
-
-if (defined($opt_initialdns)) { $defserver = $opt_initialdns; }
-
-if (defined($opt_server)) { $server = $opt_server; }
-
-if (defined($opt_subdomains)) { @subdomains = split(/,/, $opt_subdomains); }
-
-if (defined($opt_debug)) { $debug = $opt_debug; }
-
-if (defined($opt_timeout)) { $timeout = $opt_timeout; }
-
-if (defined($opt_pingtimeout)) { $ping_timeout = $opt_pingtimeout; }
-
-if (defined($opt_passwordtimeout)) {
- $passwordtimeout = $opt_passwordtimeout;
- $sshdisablepasswordoption = '';
-}
-
-if (defined($opt_trustdaemon)) { $trustdaemon = $opt_trustdaemon; }
-
-if (defined($opt_recursive)) { $recursive = $opt_recursive; }
-
-if (defined($opt_domainnamesplit)) { $domainnamesplit = $opt_domainnamesplit; }
-
-if (defined($opt_silent)) { $bell = ''; }
-
-if (defined($opt_nslookup)) { $nslookup = $opt_nslookup; }
-
-if (defined($opt_ssh)) { $ssh = $opt_ssh; } else {
- $ssh = "$ssh $sshdisablepasswordoption";
-}
-
-if ($#ARGV == 0) {
- $domain = "\L$ARGV[0]\E";
- $grep_yes = '.*';
- $grep_no = '^$';
-} elsif ($#ARGV == 1) {
- $domain = "\L$ARGV[0]\E";
- $grep_yes = $ARGV[1];
- $grep_no = '^$';
-} elsif ($#ARGV == 2) {
- $domain = "\L$ARGV[0]\E";
- $grep_yes = $ARGV[1];
- $grep_no = $ARGV[2];
-} else {
- print(STDERR "$0 [--initialdns initial_dns_server] [--server dns_server] [--subdomains sub.sub.domain,sub.sub,sub,] [--debug debug_level] [--timeout ssh_exec_timeout_in_secs] [--pingtimeout ping_timeout_in_secs] [--passwordtimeout timeout_for_password_in_secs] [--notrustdaemon] [--norecursive] [--domainnamesplit] [--silent] [--keyscan] [--nslookup path_to_nslookup] [--ssh path_to_ssh] full.domain [ host_info_take_regexp [ host_info_remove_regex ]]\n");
- exit(1);
-}
-
-######################################################################
-# Check that ssh program exists
-
-if (system("$ssh > /dev/null 2>&1 ") != 256) {
- print(STDERR "Error: Could not run ssh program ($ssh): $!\nError: Try giving the path to it with --ssh option\n");
- exit(1);
-}
-
-######################################################################
-# Generate subdomains list
-
-if (!$domainnamesplit) {
- debug(6, "Auto splitting host entries");
-} elsif (!defined(@subdomains)) {
- debug(6, "Generating subdomain list");
-
- # split domain to pieces
- @domain_pieces = split(/\./, $domain);
-
- # add empty domain part
- push(@subdomains, '');
-
- # add rest parts, except the one before full domain name
- $entry='';
- for(; $#domain_pieces > 1; ) {
- $entry .= "." . shift(@domain_pieces);
- push(@subdomains, $entry);
- }
-
- # add full domain name
- push(@subdomains, ".$domain");
- debug(5, "Subdomain list: " . join(',', @subdomains));
-} else {
- debug(5, "Using given subdomain list:" . join(',', @subdomains));
-}
-
-######################################################################
-# finding SOA entry for domain
-
-@other_servers = ();
-if (!defined($server)) {
- debug(6, "Finding DNS database SOA entry");
-
- ($server, @other_servers) = find_soa($domain, $defserver);
-
- if (!defined($server)) {
- print(STDERR "Error: Could not find DNS SOA entry from default dns server\nError: Try giving the initial nameserver with --initialdns option\n");
- exit(1);
- } else {
- debug(5, "DNS server found : $server");
- }
-} else {
- debug(5, "Using given DNS server : $server");
-}
-
-######################################################################
-# Print header
-
-($name, $junk, $junk, $junk, $junk, $junk, $gecos) = getpwuid($<);
-$gecos =~ s/,.*$//g;
-
-if (!defined($opt_keyscan)) {
- print(STDOUT "# This file is generated with make-ssh-known-hosts.pl\n");
- print(STDOUT "#$version\n");
- print(STDOUT "# with command line :\n");
- print(STDOUT "# $command_line\n");
- print(STDOUT "#\n");
- print(STDOUT "# The script was run by $gecos ($name) at " . localtime() . "\n");
- print(STDOUT "# using perl ($^X) version $].\n");
-}
-
-######################################################################
-# Get DNS database list from server
-
-do {
- $domains_done{$domain} = 1;
- delete $domains_waiting{$domain};
-
- $hostcnt = 0;
- $cnamecnt = 0;
- $lines = 0;
- $soa = 0;
- undef %host;
- undef %cname;
- undef %hostdata;
-
- dnsagain:
- debug(1, "Getting DNS database for $domain from server $server");
- open(DNS, "echo ls -d $domain | nslookup - $server 2>&1 |") ||
- die "Error: Could not start nslookup to make dns list : $!\nError: Try giving --nslookup option and telling the path to nslookup program\n";
-
- while(<DNS>) {
- $lines++;
- chomp;
- undef $hostname if/^\s*$/;
- if (/^\s{0,1}([a-zA-Z0-9-]\S*)/) {
- $hostname = "\L$1\E";
- }
- next unless defined $hostname;
- if (/^.*\s(SOA)\s+(.*)\s*$/ || $hostname eq "SOA") {
- undef $soa if(/^.*\s(SOA)\s+(.*)\s*$/);
- $data = $_ if ($hostname eq "SOA");
- $data = $2 unless $hostname eq "SOA";
- $data =~ s/\s*;.*$//;
- $data =~ s/^\s+//;
- if( defined $soa ) {
- $soa .= " \L$data\E";
- } else {
- $soa = "\L$data\E";
- }
- $hostname = "SOA";
- } elsif (/^.*\s(A|CNAME|NS)\s+(.*)\s*$/) {
- $host = $hostname;
- $field = "\L$1\E";
- $data = "\L$2\E";
- debug(70, "Line = /$host/$field/$data/");
- if ($host !~ /\.$/) {
- $host .= ".$domain";
- } else {
- $host =~ s/\.$//g;
- }
- if ($field eq "a") {
- if ($host =~ /$domain$/) {
- if (defined($host{$host})) {
- $host{$host} .= ",$data";
- } else {
- $host{$host} = "$data";
- $hostcnt++;
- }
- debug(30, "$host A == $host{$host}");
- }
- } elsif ($field eq "cname") {
- if ($data !~ /\.$/ && ! /^\s/ ) {
- $data .= ".$domain";
- } else {
- $data =~ s/\.$//g;
- }
- if ($host =~ /$domain$/) {
- if (defined($cname{$data})) {
- $cname{$data} .= ",$host";
- } else {
- $cname{$data} = "$host";
- $cnamecnt++;
- }
- debug(30, "$host CNAME $data");
- $junk = $data;
- $data = $host;
- $host = $junk;
- }
- } elsif ($field eq "ns") {
- if (!defined($domains_done{$host})) {
- if (!defined($domains_waiting{$host})) {
- debug(10, "Adding subdomain $host to domains list, with NS $data");
- $domains_waiting{$host} = $data;
- push(@domains_waiting, $host);
- } else {
- debug(10, "Adding NS $data for domain $host");
- $domains_waiting{$host} .= ",$data";
- }
- }
- }
- if (!defined($hostdata{$host})) {
- $hostdata{$host} = "$host\n$field=$data\n";
- } else {
- $hostdata{$host} .= "$field=$data\n";
- }
- }
- }
- close(DNS);
- if ($hostcnt == 0 && $cnamecnt == 0) {
- if ($#other_servers != -1) {
- $server = shift(@other_servers);
- goto dnsagain;
- }
- }
- debug(1, "Found $hostcnt hosts, $cnamecnt CNAMEs (total $lines lines)");
- if (!defined($opt_keyscan)) {
- print(STDOUT "#\n");
- print(STDOUT "# Domain = $domain, server = $server\n");
- print(STDOUT "# Found $hostcnt hosts, $cnamecnt CNAMEs (total $lines lines)\n");
- print(STDOUT "# SOA = $soa\n");
- print(STDOUT "#\n");
- }
-
-######################################################################
-# Loop through hosts and try to connect to hosts
-
- foreach $i (sort (keys %host)) {
- debug(50, "Host = $i, Hostdata = $hostdata{$i}");
- if ($hostdata{$i} =~ /$grep_yes/im &&
- $hostdata{$i} !~ /$grep_no/im &&
- $i !~ /^localhost\./ &&
- $host{$i} !~ /^127.0.0.1$|^127.0.0.1,|,127.0.0.1$|,127.0.0.1,/) {
- debug(2, "Trying host $i");
-
- @hostnames = ();
- if (defined($cname{$i})) {
- expand($i, \@hostnames, \@subdomains);
- foreach $j (split(/,/, $cname{$i})) {
- expand($j, \@hostnames, \@subdomains);
- }
- } else {
- expand($i, \@hostnames, \@subdomains);
- }
- foreach $j (split(/,/, $host{$i})) {
- push(@hostnames, $j);
- }
- $hostnames = join(',', (@hostnames));
-
- if (defined($opt_keyscan)) {
- printf(STDOUT "$host{$i}\t$hostnames\n");
- } elsif (try_ping($i, $host{$i})) {
- $trusted = 1;
- $err = 'Timeout expired';
- $ssh_key = try_ssh("$i");
- if (!defined($ssh_key)) {
- $ssh_key = find_host_from_known_hosts($i);
- $trusted = 0;
- }
- if (defined($ssh_key)) {
- if ($trusted) {
- debug(2, "Ssh to $i succeded");
- } else {
- debug(2, "Ssh to $i failed, using local known_hosts entry");
- }
- debug(4, "adding entries : $hostnames");
- $ssh_key =~ s/root@//i;
- if (!$trusted && !$trustdaemon) {
- print(STDOUT "# $hostnames $ssh_key\n");
- } else {
- print(STDOUT "$hostnames $ssh_key\n");
- }
- } else {
- debug(2, "ssh failed : $err");
- }
- } else {
- debug(2, "ping failed");
- }
- } else {
- debug(10, "Skipped host $i");
- }
- }
- again:
- $domain = shift(@domains_waiting);
- if (defined($domain)) {
- $server = $domains_waiting{$domain};
- @other_servers = split(',', $server);
- $server = shift(@other_servers);
- ($server, @other_servers) = find_soa($domain, $server);
- if(!defined($server)) {
- debug(1, "Skipping domain $domain because no DNS SOA entry found");
- $domains_done{$domain} = 1;
- delete $domains_waiting{$domain};
- goto again;
- }
- }
-} while ($recursive && defined($domain));
-
-unlink($private_ssh_known_hosts);
-exit (0);
-
-######################################################################
-# try_ping -- try to ping to host and return 1 if success
-# $success = try_ping($host, $list_ip_addrs);
-
-sub try_ping {
- my($host, $ipaddrs) = @_;
- my(@ipaddrs, $ipaddr, $serv, $ip);
- my($rin, $rout, $win, $wout, $nfound, $tmout, $buf, $len, $ret, $err);
-
- $buf = '';
- debug(51,"Trying to ping host $host");
- @ipaddrs = split(/,/, $ipaddrs);
-
- while ($ipaddr = shift(@ipaddrs)) {
-
- debug(55,"Trying ipaddr $ipaddr");
-
- #initialize socket
- socket(PING, PF_INET, SOCK_STREAM, $tcpproto) ||
- die "socket failed : $!";
- setsockopt(PING, SOL_SOCKET, SO_REUSEADDR, 1) ||
- die "setsockopt failed : $!";
- PING->autoflush(1);
- fcntl(PING, F_SETFL, fcntl(PING, F_GETFL, 0) | POSIX::O_NONBLOCK) ||
- die "fcntl failed : $!";
-
- $ip = pack('C4', split(/\./, $ipaddr, 4));
- $serv = pack($sockaddr, AF_INET, $sshport, $ip);
-
- again:
- # try connect
- $ret = connect(PING, $serv);
- $err = $!;
- if (!$ret) {
- debug(60, "Connect failed : $err");
- if ($err == EINTR) {
- goto again;
- }
- # socket not yet connected, wait for result, it will
- # wake up for writing when done
- $tmout = $ping_timeout;
-
- $rin = '';
- $win = '';
- vec($rin, fileno(PING), 1) = 1;
- vec($win, fileno(PING), 1) = 1;
- debug(60, "Waiting in select, rin = " . unpack('H*', $rin) .
- ", win = " . unpack('H*', $win));
- ($nfound) = select($rout = $rin, $wout = $win, undef, $tmout);
- $err = $!;
- debug(80, "Select returned $nfound, rout = " . unpack('H*', $rout) .
- ", wout = " . unpack('H*', $wout));
- if ($nfound != 0) {
- # connect done, read the status with sysread
- $ret = sysread(PING, $buf, 1);
- $err = $!;
- if (defined($ret) || $err == EAGAIN || $err == EWOULDBLOCK) {
- debug(60, "Select ok, read ok ($err), returning ok");
- # connection done, return ok
- shutdown(PING, 2);
- close(PING);
- return 1;
- } else {
- # connection failed, try next ipaddr
- debug(60, "Select ok, read failed : $err, trying next");
- close(PING);
- }
- } else {
- # timeout exceeded, try next ipaddr
- debug(60, "Select failed : $err, trying next");
- close(PING);
- }
- } else {
- # connect succeeded, return ok.
- debug(60, "Connect ok, returning ok");
- shutdown(PING, 2);
- close(PING);
- return 1;
- }
- }
- debug(60, "Returning fail");
- return 0;
-}
-
-######################################################################
-# try_ssh -- try ssh connection to host and return ssh_key if success
-# if failure return undef, and set $err string to contain error message.
-# $ssh_key = try_ssh($host);
-
-sub try_ssh {
- my($host) = @_;
- my($buf, $ret, $pos, $pid, $rin, $nfound, $tmout);
-
- $pid = open(SSH, "$ssh $host cat $public_key 2>&1 |");
- $err = undef;
-
- if ($pid == 0) {
- $err = "could not open ssh connection to host";
- return undef;
- }
- $ret = 1;
- $pos = 0;
- $buf = '';
- $tmout = $timeout;
- debug(10, "Starting ssh select loop");
- loop:
- while (1) {
-
- $rin = '';
- vec($rin, fileno(SSH), 1) = 1;
- ($nfound, $tmout) = select($rin, undef, undef, $tmout);
-
- # Timeout
- if ($nfound <= 0) {
- debug(20, "Ssh select timed out");
- kill(2, $pid); sleep(1); kill(9, $pid);
- close(SSH);
- $err = "Timeout expired";
- return undef;
- }
-
- $ret = sysread(SSH, $buf, 256, $pos);
- # EOF or error
- if ($ret <= 0) {
- # Yes, close the pipe and return
- close(SSH);
- debug(20, "Ssh select closed status = $?");
- $err = "No reply from ssh";
- return undef;
- }
- $pos += $ret;
- while ($buf =~ /^(.*)\n\r?([\000-\377]*)$/) {
- $_ = $1;
- $buf = $2;
- $pos = length($buf);
- debug(20, "Ssh select loop, line = \"$_\"");
- if (/^connection.*refused/i) {
- $err = "connection refused";
- } elsif (/^permission/i) {
- $err = "permission denied";
- } elsif (/$public_key.*no\s+file/i) {
- $err = "$public_key file not found";
- } elsif (/$public_key.*permission\s+denied/i) {
- $err = "$public_key file permission denied";
- } elsif (/^\d+\s+\d+\s+\d/) {
- kill(2, $pid); sleep(1); kill(9, $pid);
- close(SSH);
- return $_;
- }
- if (defined($err)) {
- kill(2, $pid); sleep(1); kill(9, $pid);
- close(SSH);
- return undef;
- }
- }
- if ($buf =~ /password: $/i) {
- if (defined($passwordtimeout)) {
- $tmout = $passwordtimeout;
- print(STDERR "$bell\n\rPassword: ");
- if ($tmout == 0) {
- $tmout = undef;
- }
- } else {
- $tmout = 0;
- }
- $buf = '';
- $pos = 0;
- }
- }
-}
-
-######################################################################
-# find_hosts_from_known_hosts -- find host key from private known_hosts file
-# $ssh_key = find_host_from_known_hosts($host);
-
-sub find_host_from_known_hosts {
- my($host) = @_;
- open(KNOWNHOSTS, "<$private_ssh_known_hosts") || return undef;
- while(<KNOWNHOSTS>) {
- @_ = split(/\s+/, $_);
- if ($_[0] =~ /^$host$|^$host,|,$host$/) {
- shift(@_);
- close(KNOWNHOSTS);
- return join(' ', @_);
- }
- }
- close(KNOWNHOSTS);
- return undef;
-}
-
-######################################################################
-# expand -- insert expanded hostnames to hostnames table
-# expand($hostname, \@hostnames, \@subdomains);
-
-sub expand {
- my($host, $hostnames, $subdomains) = @_;
- my($newhost, $sub, $entry);
-
- if (!$domainnamesplit) {
- my(@domain_pieces);
-
- # split domain to pieces
- @domain_pieces = split(/\./, $host);
-
- # add rest parts, except the one before full domain name
- $entry = shift(@domain_pieces);
-
- debug(20, "Adding autosplit entry $entry");
- push(@$hostnames, $entry);
-
- for(; $#domain_pieces > 1; ) {
- $entry .= "." . shift(@domain_pieces);
- debug(20, "Adding autosplit entry $entry");
- push(@$hostnames, $entry);
- }
- # add full domain name
- debug(20, "Adding autosplit entry $host");
- push(@$hostnames, $host);
- } else {
- if ($host =~ /^(.*)$domain$/i) {
- $newhost = $1;
- $newhost =~ s/\.$//g;
- foreach $sub (@$subdomains) {
- $entry = $newhost . $sub;
- $entry =~ s/^\.//g;
- if ($entry ne '') {
- debug(20, "Adding entry $entry");
- push(@$hostnames, $entry);
- }
- }
- }
- }
-}
-
-######################################################################
-# Print debug text
-# debug(text_debug_level, string)
-
-sub debug {
- my($level, $str) = @_;
- if ($debug > $level) {
- print(STDERR "$0:debug[$level]: $str\n");
- }
-}
-
-######################################################################
-# find_soa -- find soa entry for domain
-# ($soa_origin, @other_servers) = find_soa($domain, $initial_server)
-
-sub find_soa {
- my($domain, $initial_server) = @_;
- my($field, $data, $server, @other_servers);
-
- open(DNS, "$nslookup -type=soa $domain $initial_server 2>&1 |") ||
- die "Error: Could not start nslookup to find SOA entry for $domain : $!\nError: Try giving the path to it with --nslookup option\n";
-
- while (<DNS>) {
- if (/^[^=]*origin\s*=\s*(.*)/) {
- $server = $1;
- debug(10, "Found origin : $1");
- } elsif (/^[^=]*nameserver\s*=\s*(.*)\s*$/) {
- push(@other_servers, $1);
- debug(10, "Found nameserver : $1");
- }
- }
- close(DNS);
- return($server, @other_servers);
-}
-
-######################################################################
-# make_perl_happy -- use some symbols, so perl doesn't complain so much
-# make_perl_happy();
-
-sub make_perl_happy {
- if (0) {
- print $opt_silent;
- }
-}
-
-1;