dns-browse (1.9-7) direct (non packaging) changes

--- dns-browse-1.9.orig/Makefile.in
+++ dns-browse-1.9/Makefile.in
@@ -4,6 +4,7 @@
 # $Id: Makefile.in,v 1.5 1997/12/04 20:10:58 johnh Exp $
 #
 
+DESTDIR=
 TOSHAR=README dns_browse dns_tree \
 	Makefile.in configure configure.in install-sh release
 PACKAGE=dns_browse
@@ -17,10 +18,8 @@
 PERL = @PERL@
 
 install:
-	{ echo "#!$(WISH) -f"; cat dns_browse; } >t
-	$(INSTALL) -m 755 t $(bindir)/dns_browse
-	{ echo "#!$(PERL) -w"; cat dns_tree; } >t
-	$(INSTALL) -m 755 t $(bindir)/dns_tree
+	$(INSTALL) -m 755 dns_browse $(DESTDIR)$(bindir)/
+	$(INSTALL) -m 755 dns_tree $(DESTDIR)$(bindir)/
 
 .tar_files: Makefile release
 	for i in $(TOSHAR); \
@@ -38,3 +37,8 @@
 	tar cvf - `cat .tar_files` |gzip >$(PACKAGE)-`cat release`.tar.gz
 	rm ./$(PACKAGE)-`cat release`
 
+clean:
+	-rm *~ config.cache config.status config.log t
+
+distclean: clean
+	-rm Makefile
--- dns-browse-1.9.orig/dns_tree
+++ dns-browse-1.9/dns_tree
@@ -1,4 +1,4 @@
-#!/home/johnh/BIN/perl5 -w
+#!/usr/bin/perl -w
 
 #
 # dns_tree
@@ -23,9 +23,9 @@
 
 sub usage {
     print STDERR <<END;
-usage: $0
+usage: $0 domain
 
-display a tree-structured view of the dns
+display a tree-structured view of the dns domain 'domain'
 
 Options:
     -f	    override warnings (force)
@@ -34,6 +34,7 @@
     -m MATCH show only records whos first component matches the
 		perl regexp MATCH
     -v       verbose (show all DNS requests)
+    -d	     debug output (show internal information of the program)
 
 (Only -f is currently implemented)
 
@@ -65,6 +66,9 @@
 # Temp creation race found by the Debian folks.
 # http://bugs.debian.org/146591
 # Fix: make the tmp file in the users home directory.
+# Note: the following check is made just in case, we do not
+# want to leave files in the / directory if the environment is messed up
+die "Environment not properly set up for use in dns_tree" if ! defined($ENV{'HOME'});
 my($cache_dir) = $ENV{'HOME'} . "/.DNS_TREE";
 my(@dangereous_names) = qw(com. edu. org. in-addr.arpa. co.uk.); # all lc
 my(@messages) = ();
@@ -189,7 +193,7 @@
 
 sub dig {
     my($ah_ref) = @_;
-    my($cmd, $name, $server, $cache_duration) = ($ah_ref->{cmd}, $ah_ref->{name}, $ah_ref->{server},  $ah_ref->{cache_duration});
+    my($cmd, $name, $server, $cache_duration, $options) = ($ah_ref->{cmd}, $ah_ref->{name}, $ah_ref->{server},  $ah_ref->{cache_duration}, $ah_ref->{options});
     my(@msgs);
 
     # What should we keep from the dig output?
@@ -229,10 +233,16 @@
 	};
     };
     if (-f $fn) {
+    	print STDERR "Reading dig information fron standard input\n" if defined($opts{'debug'});
 	open(DIG, "< $fn") || croak "cached dig";
 	$from_cache = 1;
     } else {
-        open(DIG, "dig $cmd $name $server |") || croak "dig";
+    	print STDERR "Calling dig $options $cmd $name $server\n" if defined($opts{'debug'});
+	if ( defined ($options) ) {
+		open(DIG, "dig $options $cmd $name $server |") || croak "dig";
+	} else {
+		open(DIG, "dig $cmd $name $server |") || croak "dig";
+	}
 	open(CACHE, "> $fn") || croak "dig to cache $fn";
     };
 
@@ -245,6 +255,7 @@
     my($origin) = ".";
     my($lasta) = undef;
     while (<DIG>) {
+    	print STDERR "Reading dig input: $_" if defined($opts{'debug'});
 	print CACHE $_ if (!$from_cache);
 	if ($in_soa) {
 	    my($dummy, $n) = split(/\s+/);
@@ -328,9 +339,9 @@
 sub fetch_nses {
     my($name, $cache_duration) = @_;
 
-    my($res_ref, $msgs_ref) = dig({cmd => 'ns', name => $name, types => [qw(NS)], cache_duration => $cache_duration});
-    die "fetch_nses: dig ns failed\n" if (!defined($res_ref));
+    my($res_ref, $msgs_ref) = dig({cmd => 'ns', name => $name, types => [qw(NS)], cache_duration => $cache_duration, options => ''});
     push_msgs($msgs_ref) if (defined($opts{'verbose'}));
+    die "fetch_nses: dig ns failed\n" if (!defined($res_ref));
 
     my(@nses);
     foreach (@$res_ref) {
@@ -342,7 +353,7 @@
 sub fetch_level_from_ns {
     my($name, $ns, $types_aref, $cache_duration) = @_;
 
-    my($res_ref, $msgs_ref) = dig({cmd => 'axfr', name => $name, server => $ns, types => $types_aref}, cache_duration => $cache_duration);
+    my($res_ref, $msgs_ref) = dig({cmd => 'axfr', name => $name, server => $ns, types => $types_aref}, cache_duration => $cache_duration, options => '');
     push_msgs($msgs_ref);
     return $res_ref;
 }
@@ -361,9 +372,9 @@
 sub fetch_soa {
     my($name) = @_;
 
-    my($soa_ref, $msgs_ref) = dig({cmd => 'soa', name => $name, types => [qw(SOA)]});
-    die "fetch_soa: dig soa failed\n" if (!defined($soa_ref));
+    my($soa_ref, $msgs_ref) = dig({cmd => 'soa', name => $name, types => [qw(SOA)], options => '+multiline' });
     push_msgs($msgs_ref) if (defined($opts{'verbose'}));
+    die "fetch_soa: dig soa failed\n" if (!defined($soa_ref));
     return $soa_ref->[0];
 }
 
@@ -390,14 +401,15 @@
 }
 
 sub main {
-    &usage if ($#ARGV >= 0 && $ARGV[0] eq '-?');
-    &GetOptions(\%opts, qw(f m=s t=s@ v));
+    &usage if ($#ARGV >= 0 && ( $ARGV[0] eq '-?' || $ARGV[0] eq '-h' ));
+    &GetOptions(\%opts, qw(f m=s t=s@ v d));
     &usage if ($#ARGV != 0);
 
     $opts{'force'} = $opts{'f'};
     $opts{'match'} = $opts{'m'};
     $opts{'types'} = $opts{'t'};
     $opts{'verbose'} = $opts{'v'};
+    $opts{'debug'} = $opts{'d'};
     my($types_aref) = $opts{'types'};
     if (defined($types_aref) && $#$types_aref == 0 && $types_aref->[0] eq 'all') {
 	# special case "all"
--- dns-browse-1.9.orig/dns_browse
+++ dns-browse-1.9/dns_browse
@@ -1,4 +1,4 @@
-#!/home/johnh/BIN/wish -f
+#!/usr/bin/wish -f
 
 #
 # dns_browse
@@ -20,7 +20,7 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 # 
 
-global dns_tree types
+global dns_tree types 
 set dns_tree "dns_tree"
 set prog "dns_browse"
 set maximal_types {A CNAME HINFO LOC MX NS PTR TXT}
@@ -30,14 +30,14 @@
 set www_hosts_only 0
 
 proc usage {} {
-	puts {usage: gui [-t TYPE ...] starting_domain_name
-options:
+        global prog dns_tree
+	puts stderr "usage: $prog \[-t TYPE ...\] starting_domain_name"
+        puts stderr {options:
     -t TYPE show only records of these TYPE (repeat for multiple types)
 		(the ``all'' type does everything I know about)
     -w      match only web hosts
-
-Requires dns_tree to be in the path.
 }
+        puts stderr "Requires $dns_tree to be in the path."
 	exit 1
 }
 
@@ -610,7 +610,7 @@
 
 proc fill_text_line {w place line base_depth} {
 	if {![regexp "^(\t*)(\[^\t\]+)\t+(\[^\t\]+)(.*)$" $line dummy new_tabs type value rest]} {
-		error "fill_text_line: $line"
+		error "fill_text_line: '$line' does not follow expected regular expression for records"
 	}
 	set new_depth [string length $new_tabs]
 	set depth [expr $base_depth+$new_depth]
@@ -718,7 +718,7 @@
 	set wid [incr window_next_id]
 	set w [toplevel ".w$wid"]
 	global prog
-	wm iconname $w "$prog: $dir"
+        wm iconname $w "$prog: $dir"
 	wm title $w "$prog: $dir"
 
 	# set options
@@ -765,8 +765,6 @@
 	set insertion_next_id 0
 	set window_next_id 0
 
-	wm withdraw .
-
 	# option processing
 	global user_types maximal_types default_types www_hosts_only
 	if {[llength $argv] < 1} {
@@ -781,6 +779,7 @@
 			set optarg {}
 		}
 		switch -exact -- $optc {
+			-h	{ usage }
 			-t	{
 				lappend user_types $optarg
 				set argv [lrange $argv 1 end]
@@ -798,6 +797,12 @@
 		set user_types $default_types
 	}
 
+        if [catch { wm withdraw .} ] {
+         puts stderr "DISPLAY variable not set correctly or not running X"
+         exit 1
+        }
+
+
 	# argument processing
 	foreach name $argv {
 		build_browser $name {}