Initial integration of libnet-1.0703.

The Configure script renamed as libnetcfg, will be
installed along other utilities.

p4raw-id: //depot/perl@10663

1 files changed, 642 insertions, 0 deletions

diff --git a/utils/libnetcfg.PL b/utils/libnetcfg.PL
new file mode 100644
index 0000000000..3418dd11a3
--- /dev/null
+++ b/utils/libnetcfg.PL
@@ -0,0 +1,642 @@
+#!/usr/local/bin/perl
+
+use Config;
+use File::Basename qw(&basename &dirname);
+use Cwd;
+
+# List explicitly here the variables you want Configure to
+# generate.  Metaconfig only looks for shell variables, so you
+# have to mention them as if they were shell variables, not
+# %Config entries.  Thus you write
+#  $startperl
+# to ensure Configure will look for $Config{startperl}.
+
+# This forces PL files to create target in same directory as PL file.
+# This is so that make depend always knows where to find PL derivatives.
+my $origdir = cwd;
+chdir dirname($0);
+my $file = basename($0, '.PL');
+$file .= '.com' if $^O eq 'VMS';
+
+open OUT,">$file" or die "Can't create $file: $!";
+
+print "Extracting $file (with variable substitutions)\n";
+
+# In this section, perl variables will be expanded during extraction.
+# You can use $Config{...} to use Configure variables.
+
+print OUT <<"!GROK!THIS!";
+$Config{startperl}
+    eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
+	if \$running_under_some_shell;
+!GROK!THIS!
+
+# In the following, perl variables are not expanded during extraction.
+
+print OUT <<'!NO!SUBS!';
+
+# $Id: Configure,v 1.8 1997/03/04 09:22:32 gbarr Exp $
+
+use strict;
+use IO::File;
+use Getopt::Std;
+use ExtUtils::MakeMaker qw(prompt);
+
+use vars qw($opt_d $opt_o);
+
+##
+##
+##
+
+my %cfg = ();
+my @cfg = ();
+
+my($libnet_cfg,$msg,$ans,$def,$have_old);
+
+##
+##
+##
+
+sub valid_host
+{
+ my $h = shift;
+
+ defined($h) && (($cfg{'test_exist'} == 0) || gethostbyname($h));
+}
+
+##
+##
+##
+
+sub test_hostnames (\@)
+{
+ my $hlist = shift;
+ my @h = ();
+ my $host;
+ my $err = 0;
+
+ foreach $host (@$hlist)
+  {
+   if(valid_host($host))
+    {
+     push(@h, $host);
+     next;
+    }
+   warn "Bad hostname: '$host'\n";
+   $err++;
+  }
+ @$hlist = @h;
+ $err ? join(" ",@h) : undef;
+}
+
+##
+##
+##
+
+sub Prompt
+{
+ my($prompt,$def) = @_;
+
+ $def = "" unless defined $def;
+
+ chomp($prompt);
+
+ if($opt_d)
+  {
+   print $prompt,," [",$def,"]\n";
+   return $def;
+  }
+ prompt($prompt,$def);
+}
+
+##
+##
+##
+
+sub get_host_list
+{
+ my($prompt,$def) = @_;
+
+ $def = join(" ",@$def) if ref($def);
+
+ my @hosts;
+
+ do
+  {
+   my $ans = Prompt($prompt,$def);
+
+   $ans =~ s/(\A\s+|\s+\Z)//g;
+
+   @hosts = split(/\s+/, $ans);
+  }
+ while(@hosts && defined($def = test_hostnames(@hosts)));
+
+ \@hosts;
+}
+
+##
+##
+##
+
+sub get_hostname
+{
+ my($prompt,$def) = @_;
+
+ my $host;
+
+ while(1)
+  {
+   my $ans = Prompt($prompt,$def);
+   $host = ($ans =~ /(\S*)/)[0];
+   last
+	if(!length($host) || valid_host($host));
+
+   $def =""
+	if $def eq $host;
+
+   print <<"EDQ";
+
+*** ERROR:
+    Hostname `$host' does not seem to exist, please enter again
+    or a single space to clear any default
+
+EDQ
+  }
+
+ length $host
+	? $host
+	: undef;
+}
+
+##
+##
+##
+
+sub get_bool ($$)
+{
+ my($prompt,$def) = @_;
+
+ chomp($prompt);
+
+ my $val = Prompt($prompt,$def ? "yes" : "no");
+
+ $val =~ /^y/i ? 1 : 0;
+}
+
+##
+##
+##
+
+sub get_netmask ($$)
+{
+ my($prompt,$def) = @_;
+
+ chomp($prompt);
+
+ my %list;
+ @list{@$def} = ();
+
+MASK:
+ while(1) {
+   my $bad = 0;
+   my $ans = Prompt($prompt) or last;
+
+   if($ans eq '*') {
+     %list = ();
+     next;
+   }
+
+   if($ans eq '=') {
+     print "\n",( %list ? join("\n", sort keys %list) : 'none'),"\n\n";
+     next;
+   }
+
+   unless ($ans =~ m{^\s*(?:(-?\s*)(\d+(?:\.\d+){0,3})/(\d+))}) {
+     warn "Bad netmask '$ans'\n";
+     next;
+   }
+
+   my($remove,$bits,@ip) = ($1,$3,split(/\./, $2),0,0,0);
+   if ( $ip[0] < 1 || $bits < 1 || $bits > 32) {
+     warn "Bad netmask '$ans'\n";
+     next MASK;
+   }
+   foreach my $byte (@ip) {
+     if ( $byte > 255 ) {
+       warn "Bad netmask '$ans'\n";
+       next MASK;
+     }
+   } 
+
+   my $mask = sprintf("%d.%d.%d.%d/%d",@ip[0..3],$bits); 
+
+   if ($remove) {
+     delete $list{$mask};
+   }
+   else {
+     $list{$mask} = 1;
+   }
+
+  }
+
+ [ keys %list ];
+}
+
+##
+##
+##
+
+sub default_hostname
+{
+ my $host;
+ my @host;
+
+ foreach $host (@_)
+  {
+   if(defined($host) && valid_host($host))
+    {
+     return $host
+	unless wantarray;
+     push(@host,$host);
+    }
+  }
+
+ return wantarray ? @host : undef;
+}
+
+##
+##
+##
+
+getopts('do:');
+
+$libnet_cfg = "libnet.cfg"
+	unless(defined($libnet_cfg = $opt_o));
+
+my %oldcfg = ();
+
+$Net::Config::CONFIGURE = 1; # Suppress load of user overrides
+if( -f $libnet_cfg )
+ {
+  %oldcfg = ( %{ do $libnet_cfg } );
+ }
+elsif (eval { require Net::Config }) 
+ {
+  $have_old = 1;
+  %oldcfg = %Net::Config::NetConfig;
+ }
+
+map { $cfg{lc $_} = $cfg{$_}; delete $cfg{$_} if /[A-Z]/ } keys %cfg;
+
+$oldcfg{'test_exist'} = 1 unless exists $oldcfg{'test_exist'};
+$oldcfg{'test_hosts'} = 1 unless exists $oldcfg{'test_hosts'};
+
+#---------------------------------------------------------------------------
+
+if($have_old && !$opt_d)
+ {
+  $msg = <<EDQ;
+
+Ah, I see you already have installed libnet before.
+
+Do you want to modify/update your configuration (y|n) ?
+EDQ
+
+ $opt_d = 1
+	unless get_bool($msg,0);
+ }
+
+#---------------------------------------------------------------------------
+
+$msg = <<EDQ;
+
+This script will prompt you to enter hostnames that can be used as
+defaults for some of the modules in the libnet distribution.
+
+To ensure that you do not enter an invalid hostname, I can perform a
+lookup on each hostname you enter. If your internet connection is via
+a dialup line then you may not want me to perform these lookups, as
+it will require you to be on-line.
+
+Do you want me to perform hostname lookups (y|n) ?
+EDQ
+
+$cfg{'test_exist'} = get_bool($msg, $oldcfg{'test_exist'});
+
+print <<EDQ unless $cfg{'test_exist'};
+
+*** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
+
+OK I will not check if the hostnames you give are valid
+so be very cafeful
+
+*** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
+EDQ
+
+
+#---------------------------------------------------------------------------
+
+print <<EDQ;
+
+The following questions all require a list of host names, separated
+with spaces. If you do not have a host available for any of the
+services, then enter a single space, followed by <CR>. To accept the
+default, hit <CR>
+
+EDQ
+
+$msg = 'Enter a list of available NNTP hosts :';
+
+$def = $oldcfg{'nntp_hosts'} ||
+	[ default_hostname($ENV{NNTPSERVER},$ENV{NEWSHOST},'news') ];
+
+$cfg{'nntp_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available SMTP hosts :';
+
+$def = $oldcfg{'smtp_hosts'} ||
+	[ default_hostname(split(/:/,$ENV{SMTPHOSTS} || ""), 'mailhost') ];
+
+$cfg{'smtp_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available POP3 hosts :';
+
+$def = $oldcfg{'pop3_hosts'} || [];
+
+$cfg{'pop3_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available SNPP hosts :';
+
+$def = $oldcfg{'snpp_hosts'} || [];
+
+$cfg{'snpp_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available PH Hosts   :'  ;
+
+$def = $oldcfg{'ph_hosts'} ||
+	[ default_hostname('dirserv') ];
+
+$cfg{'ph_hosts'}   =  get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available TIME Hosts   :'  ;
+
+$def = $oldcfg{'time_hosts'} || [];
+
+$cfg{'time_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = 'Enter a list of available DAYTIME Hosts   :'  ;
+
+$def = $oldcfg{'daytime_hosts'} || $oldcfg{'time_hosts'};
+
+$cfg{'daytime_hosts'} = get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+$msg = <<EDQ;
+
+Do you have a firewall/ftp proxy  between your machine and the internet 
+
+If you use a SOCKS firewall answer no
+
+(y|n) ?
+EDQ
+
+if(get_bool($msg,0)) {
+
+  $msg = <<'EDQ';
+What series of FTP commands do you need to send to your
+firewall to connect to an external host.
+
+user/pass     => external user & password
+fwuser/fwpass => firewall user & password
+
+0) None
+1) -----------------------
+     USER user@remote.host
+     PASS pass
+2) -----------------------
+     USER fwuser
+     PASS fwpass
+     USER user@remote.host
+     PASS pass
+3) -----------------------
+     USER fwuser
+     PASS fwpass
+     SITE remote.site
+     USER user
+     PASS pass
+4) -----------------------
+     USER fwuser
+     PASS fwpass
+     OPEN remote.site
+     USER user
+     PASS pass
+5) -----------------------
+     USER user@fwuser@remote.site
+     PASS pass@fwpass
+6) -----------------------
+     USER fwuser@remote.site
+     PASS fwpass
+     USER user
+     PASS pass
+7) -----------------------
+     USER user@remote.host
+     PASS pass
+     AUTH fwuser
+     RESP fwpass
+
+Choice:
+EDQ
+ $def = exists $oldcfg{'ftp_firewall_type'}  ? $oldcfg{'ftp_firewall_type'} : 1;
+ $ans = Prompt($msg,$def);
+ $cfg{'ftp_firewall_type'} = 0+$ans;
+ $def = $oldcfg{'ftp_firewall'} || $ENV{FTP_FIREWALL};
+
+ $cfg{'ftp_firewall'} = get_hostname("FTP proxy hostname :", $def);
+}
+else {
+ delete $cfg{'ftp_firewall'};
+}
+
+
+#---------------------------------------------------------------------------
+
+if (defined $cfg{'ftp_firewall'})
+ {
+  print <<EDQ;
+
+By default Net::FTP assumes that it only needs to use a firewall if it
+cannot resolve the name of the host given. This only works if your DNS
+system is setup to only resolve internal hostnames. If this is not the
+case and your DNS will resolve external hostnames, then another method
+is needed. Net::Config can do this if you provide the netmasks that
+describe your internal network. Each netmask should be entered in the
+form x.x.x.x/y, for example 127.0.0.0/8 or 214.8.16.32/24
+
+EDQ
+$def = [];
+if(ref($oldcfg{'local_netmask'}))
+ {
+  $def = $oldcfg{'local_netmask'};
+   print "Your current netmasks are :\n\n\t",
+	join("\n\t",@{$def}),"\n\n";
+ }
+
+print "
+Enter one netmask at each prompt, prefix with a - to remove a netmask
+from the list, enter a '*' to clear the whole list, an '=' to show the
+current list and an empty line to continue with Configure.
+
+";
+
+  my $mask = get_netmask("netmask :",$def);
+  $cfg{'local_netmask'} = $mask if ref($mask) && @$mask;
+ }
+
+#---------------------------------------------------------------------------
+
+###$msg =<<EDQ;
+###
+###SOCKS is a commonly used firewall protocol. If you use SOCKS firewalls
+###then enter a list of hostames
+###
+###Enter a list of available SOCKS hosts :
+###EDQ
+###
+###$def = $cfg{'socks_hosts'} ||
+###	[ default_hostname($ENV{SOCKS5_SERVER},
+###			   $ENV{SOCKS_SERVER},
+###			   $ENV{SOCKS4_SERVER}) ];
+###
+###$cfg{'socks_hosts'}   =  get_host_list($msg,$def);
+
+#---------------------------------------------------------------------------
+
+print <<EDQ;
+
+Normally when FTP needs a data connection the client tells the server
+a port to connect to, and the server initiates a connection to the client.
+
+Some setups, in particular firewall setups, can/do not work using this
+protocol. In these situations the client must make the connection to the
+server, this is called a passive transfer.
+EDQ
+
+if (defined $cfg{'ftp_firewall'}) {
+  $msg = "\nShould all FTP connections via a firewall/proxy be passive (y|n) ?";
+
+  $def = $oldcfg{'ftp_ext_passive'} || 0;
+
+  $cfg{'ftp_ext_passive'} = get_bool($msg,$def);
+
+  $msg = "\nShould all other FTP connections be passive (y|n) ?";
+
+}
+else {
+  $msg = "\nShould all FTP connections be passive (y|n) ?";
+}
+
+$def = $oldcfg{'ftp_int_passive'} || 0;
+
+$cfg{'ftp_int_passive'} = get_bool($msg,$def);
+
+
+#---------------------------------------------------------------------------
+
+$def = $oldcfg{'inet_domain'} || $ENV{LOCALDOMAIN};
+
+$ans = Prompt("\nWhat is your local internet domain name :",$def);
+
+$cfg{'inet_domain'} = ($ans =~ /(\S+)/)[0];
+
+#---------------------------------------------------------------------------
+
+$msg = <<EDQ;
+
+If you specified some default hosts above, it is possible for me to
+do some basic tests when you run `make test'
+
+This will cause `make test' to be quite a bit slower and, if your
+internet connection is via dialup, will require you to be on-line
+unless the hosts are local.
+
+Do you want me to run these tests (y|n) ?
+EDQ
+
+$cfg{'test_hosts'} = get_bool($msg,$oldcfg{'test_hosts'});
+
+#---------------------------------------------------------------------------
+
+$msg = <<EDQ;
+
+To allow Net::FTP to be tested I will need a hostname. This host
+should allow anonymous access and have a /pub directory
+
+What host can I use :
+EDQ
+
+$cfg{'ftp_testhost'} = get_hostname($msg,$oldcfg{'ftp_testhost'})
+	if $cfg{'test_hosts'};
+
+
+print "\n";
+
+#---------------------------------------------------------------------------
+
+my $fh = IO::File->new($libnet_cfg, "w") or
+	die "Cannot create `$libnet_cfg': $!";
+
+print "Writing $libnet_cfg\n";
+
+print $fh "{\n";
+
+my $key;
+foreach $key (keys %cfg) {
+    my $val = $cfg{$key};
+    if(!defined($val)) {
+	$val = "undef";
+    }
+    elsif(ref($val)) {
+	$val = '[' . join(",",
+	    map {
+		my $v = "undef";
+		if(defined $_) {
+		    ($v = $_) =~ s/'/\'/sog;
+		    $v = "'" . $v . "'";
+		}
+		$v;
+	    } @$val ) . ']';
+    }
+    else {
+	$val =~ s/'/\'/sog;
+	$val = "'" . $val . "'" if $val =~ /\D/;
+    }
+    print $fh "\t'",$key,"' => ",$val,",\n";
+}
+
+print $fh "}\n";
+
+$fh->close;
+
+############################################################################
+############################################################################
+
+exit 0;
+!NO!SUBS!
+
+close OUT or die "Can't close $file: $!";
+chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
+exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
+chdir $origdir;