chore: import upstream snapshot with attribution

bind8/save_forwarding.cgi

@@ -0,0 +1,40 @@
+#!/usr/local/bin/perl
+# save_forwarding.cgi
+# Save global forwarding options
+use strict;
+use warnings;
+no warnings 'redefine';
+no warnings 'uninitialized';
+our (%access, %text, %config, %in);
+
+require './bind8-lib.pl';    ## no critic
+$access{'defaults'} || &error($text{'forwarding_ecannot'});
+&error_setup($text{'forwarding_err'});
+&ReadParse();
+
+&lock_file(&make_chroot($config{'named_conf'}));
+my $conf = &get_config();
+my $options = &find("options", $conf);
+&save_forwarders('forwarders', $options, 1);
+&save_choice('forward', $options, 1);
+&save_opt('max-transfer-time-in', \&check_mins, $options, 1);
+&save_choice('transfer-format', $options, 1);
+&save_opt('transfers-in', \&check_trans, $options, 1);
+&save_opt('transfers-per-ns', \&check_trans, $options, 1);
+&save_opt('transfers-out', \&check_trans, $options, 1);
+
+&flush_file_lines();
+&unlock_file(&make_chroot($config{'named_conf'}));
+&webmin_log("forwarding", undef, undef, \%in);
+&redirect("");
+
+sub check_mins
+{
+return $_[0] =~ /^\d+$/ ? undef : $text{'forwarding_emins'};
+}
+
+sub check_trans
+{
+return $_[0] =~ /^\d+$/ ? undef : $text{'forwarding_etrans'};
+}
+