--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/releasing/cbrtools/perl/Net/Config.pm Fri Jun 25 18:37:20 2010 +0800
@@ -0,0 +1,320 @@
+# Net::Config.pm
+#
+# Copyright (c) 2000 Graham Barr <gbarr@pobox.com>. All rights reserved.
+# This program is free software; you can redistribute it and/or
+# modify it under the same terms as Perl itself.
+
+package Net::Config;
+
+require Exporter;
+use vars qw(@ISA @EXPORT %NetConfig $VERSION $CONFIGURE $LIBNET_CFG);
+use Socket qw(inet_aton inet_ntoa);
+use strict;
+
+@EXPORT = qw(%NetConfig);
+@ISA = qw(Net::LocalCfg Exporter);
+$VERSION = "1.10"; # $Id: //depot/libnet/Net/Config.pm#17 $
+
+eval { local $SIG{__DIE__}; require Net::LocalCfg };
+
+%NetConfig = (
+ nntp_hosts => [],
+ snpp_hosts => [],
+ pop3_hosts => [],
+ smtp_hosts => [],
+ ph_hosts => [],
+ daytime_hosts => [],
+ time_hosts => [],
+ inet_domain => undef,
+ ftp_firewall => undef,
+ ftp_ext_passive => 0,
+ ftp_int_passive => 0,
+ test_hosts => 1,
+ test_exist => 1,
+);
+
+#
+# Try to get as much configuration info as possible from InternetConfig
+#
+$^O eq 'MacOS' and eval <<TRY_INTERNET_CONFIG;
+use Mac::InternetConfig;
+
+{
+my %nc = (
+ nntp_hosts => [ \$InternetConfig{ kICNNTPHost() } ],
+ pop3_hosts => [ \$InternetConfig{ kICMailAccount() } =~ /\@(.*)/ ],
+ smtp_hosts => [ \$InternetConfig{ kICSMTPHost() } ],
+ ftp_testhost => \$InternetConfig{ kICFTPHost() } ? \$InternetConfig{ kICFTPHost()} : undef,
+ ph_hosts => [ \$InternetConfig{ kICPhHost() } ],
+ ftp_ext_passive => \$InternetConfig{"646F676F\xA5UsePassiveMode"} || 0,
+ ftp_int_passive => \$InternetConfig{"646F676F\xA5UsePassiveMode"} || 0,
+ socks_hosts =>
+ \$InternetConfig{ kICUseSocks() } ? [ \$InternetConfig{ kICSocksHost() } ] : [],
+ ftp_firewall =>
+ \$InternetConfig{ kICUseFTPProxy() } ? [ \$InternetConfig{ kICFTPProxyHost() } ] : [],
+);
+\@NetConfig{keys %nc} = values %nc;
+}
+TRY_INTERNET_CONFIG
+
+my $file = __FILE__;
+my $ref;
+$file =~ s/Config.pm/libnet.cfg/;
+if ( -f $file ) {
+ $ref = eval { local $SIG{__DIE__}; do $file };
+ if (ref($ref) eq 'HASH') {
+ %NetConfig = (%NetConfig, %{ $ref });
+ $LIBNET_CFG = $file;
+ }
+}
+if ($< == $> and !$CONFIGURE) {
+ my $home = eval { local $SIG{__DIE__}; (getpwuid($>))[7] } || $ENV{HOME};
+ $home ||= $ENV{HOMEDRIVE} . ($ENV{HOMEPATH}||'') if defined $ENV{HOMEDRIVE};
+ if (defined $home) {
+ $file = $home . "/.libnetrc";
+ $ref = eval { local $SIG{__DIE__}; do $file } if -f $file;
+ %NetConfig = (%NetConfig, %{ $ref })
+ if ref($ref) eq 'HASH';
+ }
+}
+my ($k,$v);
+while(($k,$v) = each %NetConfig) {
+ $NetConfig{$k} = [ $v ]
+ if($k =~ /_hosts$/ and $k ne "test_hosts" and defined($v) and !ref($v));
+}
+
+# Take a hostname and determine if it is inside the firewall
+
+sub requires_firewall {
+ shift; # ignore package
+ my $host = shift;
+
+ return 0 unless defined $NetConfig{'ftp_firewall'};
+
+ $host = inet_aton($host) or return -1;
+ $host = inet_ntoa($host);
+
+ if(exists $NetConfig{'local_netmask'}) {
+ my $quad = unpack("N",pack("C*",split(/\./,$host)));
+ my $list = $NetConfig{'local_netmask'};
+ $list = [$list] unless ref($list);
+ foreach (@$list) {
+ my($net,$bits) = (m#^(\d+\.\d+\.\d+\.\d+)/(\d+)$#) or next;
+ my $mask = ~0 << (32 - $bits);
+ my $addr = unpack("N",pack("C*",split(/\./,$net)));
+
+ return 0 if (($addr & $mask) == ($quad & $mask));
+ }
+ return 1;
+ }
+
+ return 0;
+}
+
+use vars qw(*is_external);
+*is_external = \&requires_firewall;
+
+1;
+
+__END__
+
+=head1 NAME
+
+Net::Config - Local configuration data for libnet
+
+=head1 SYNOPSYS
+
+ use Net::Config qw(%NetConfig);
+
+=head1 DESCRIPTION
+
+C<Net::Config> holds configuration data for the modules in the libnet
+distribuion. During installation you will be asked for these values.
+
+The configuration data is held globally in a file in the perl installation
+tree, but a user may override any of these values by providing their own. This
+can be done by having a C<.libnetrc> file in their home directory. This file
+should return a reference to a HASH containing the keys described below.
+For example
+
+ # .libnetrc
+ {
+ nntp_hosts => [ "my_prefered_host" ],
+ ph_hosts => [ "my_ph_server" ],
+ }
+ __END__
+
+=head1 METHODS
+
+C<Net::Config> defines the following methods. They are methods as they are
+invoked as class methods. This is because C<Net::Config> inherits from
+C<Net::LocalCfg> so you can override these methods if you want.
+
+=over 4
+
+=item requires_firewall HOST
+
+Attempts to determine if a given host is outside your firewall. Possible
+return values are.
+
+ -1 Cannot lookup hostname
+ 0 Host is inside firewall (or there is no ftp_firewall entry)
+ 1 Host is outside the firewall
+
+This is done by using hostname lookup and the C<local_netmask> entry in
+the configuration data.
+
+=back
+
+=head1 NetConfig VALUES
+
+=over 4
+
+=item nntp_hosts
+
+=item snpp_hosts
+
+=item pop3_hosts
+
+=item smtp_hosts
+
+=item ph_hosts
+
+=item daytime_hosts
+
+=item time_hosts
+
+Each is a reference to an array of hostnames (in order of preference),
+which should be used for the given protocol
+
+=item inet_domain
+
+Your internet domain name
+
+=item ftp_firewall
+
+If you have an FTP proxy firewall (B<NOT> an HTTP or SOCKS firewall)
+then this value should be set to the firewall hostname. If your firewall
+does not listen to port 21, then this value should be set to
+C<"hostname:port"> (eg C<"hostname:99">)
+
+=item ftp_firewall_type
+
+There are many different ftp firewall products available. But unfortunately
+there is no standard for how to traverse a firewall. The list below shows the
+sequence of commands that Net::FTP will use
+
+ user Username for remote host
+ pass Password for remote host
+ fwuser Username for firewall
+ fwpass Password for firewall
+ remote.host The hostname of the remote ftp server
+
+=over 4
+
+=item 0
+
+There is no firewall
+
+=item 1
+
+ USER user@remote.host
+ PASS pass
+
+=item 2
+
+ USER fwuser
+ PASS fwpass
+ USER user@remote.host
+ PASS pass
+
+=item 3
+
+ USER fwuser
+ PASS fwpass
+ SITE remote.site
+ USER user
+ PASS pass
+
+=item 4
+
+ USER fwuser
+ PASS fwpass
+ OPEN remote.site
+ USER user
+ PASS pass
+
+=item 5
+
+ USER user@fwuser@remote.site
+ PASS pass@fwpass
+
+=item 6
+
+ USER fwuser@remote.site
+ PASS fwpass
+ USER user
+ PASS pass
+
+=item 7
+
+ USER user@remote.host
+ PASS pass
+ AUTH fwuser
+ RESP fwpass
+
+=back
+
+=item ftp_ext_passive
+
+=item ftp_int_pasive
+
+FTP servers normally work on a non-passive mode. That is when you want to
+transfer data you have to tell the server the address and port to
+connect to.
+
+With some firewalls this does not work as the server cannot
+connect to your machine (because you are behind a firewall) and the firewall
+does not re-write the command. In this case you should set C<ftp_ext_passive>
+to a I<true> value.
+
+Some servers are configured to only work in passive mode. If you have
+one of these you can force C<Net::FTP> to always transfer in passive
+mode; when not going via a firewall, by setting C<ftp_int_passive> to
+a I<true> value.
+
+=item local_netmask
+
+A reference to a list of netmask strings in the form C<"134.99.4.0/24">.
+These are used by the C<requires_firewall> function to determine if a given
+host is inside or outside your firewall.
+
+=back
+
+The following entries are used during installation & testing on the
+libnet package
+
+=over 4
+
+=item test_hosts
+
+If true then C<make test> may attempt to connect to hosts given in the
+configuration.
+
+=item test_exists
+
+If true then C<Configure> will check each hostname given that it exists
+
+=back
+
+=for html <hr>
+
+I<$Id: //depot/libnet/Net/Config.pm#17 $>
+
+=head1 COPYRIGHT
+
+Copyright (c) 2000 Graham Barr <gbarr@pobox.com>. All rights reserved.
+This program is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
+
+=cut