From 03929dac2a29664878d2c971648a4fe1fb698462 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 15 Apr 2024 22:19:02 +0200
Subject: Adding upstream version 20231031.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 scripts/dcc_ip.pl | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 scripts/dcc_ip.pl

(limited to 'scripts/dcc_ip.pl')

diff --git a/scripts/dcc_ip.pl b/scripts/dcc_ip.pl
new file mode 100644
index 0000000..3c7e8b8
--- /dev/null
+++ b/scripts/dcc_ip.pl
@@ -0,0 +1,117 @@
+#!/usr/bin/perl -w
+# dcc_ip.pl v0.5 - Copyright (c) ak5 2004
+# License: Public Domain :-)
+#
+# this scripts gets the current IP before sending a dcc..
+# useful, if you connect through a BNC f.e.
+# just load it and it will do it's job if dcc_ip_interface is set correct.
+# 
+
+# This means: If you are connecting through a router:
+#          /set dcc_ip_interface router
+# (NOT the IP of your router, just the word "router".
+#
+# If you're on dialup or something other and you see your external
+# IP address listed in 'ifconfig's output, 
+#          /set dcc_ip_interface <interface>
+# (for example ppp0)
+#
+# requires: /sbin/ifconfig ;) If you have a router, you need lynx also.
+#
+##########
+
+use strict;
+use Irssi;
+use Socket;
+use vars qw($VERSION %IRSSI);
+    $VERSION = '0.6';
+    %IRSSI = (
+        authors     => 'ak5, bw1',
+        contact     => 'meister@hq.kroenk.remove-this-because-of-spam.de',
+        name        => 'dcc_ip',
+        description => 'This script sets dcc_own_ip when starting a DCC send or chat.'.
+		       'set dcc_ip_interface to your external interface, f.e. ppp0.'.
+		       'If you are connecting though a router, set it to "router"',
+        license     => 'Public Domain',
+	url	    => 'http://hq.kroenk.de/?gnu/irssi',
+	source      => 'http://hq.kroenk.de/?gnu/irssi/dcc_ip.pl/plaintext',
+	changed     => '2019-02-17',
+    );
+
+# ip of the nat interface as a string;
+my $router_ip;
+# state of whois
+my $router_c=0;
+# arguments of the dcc command
+my $router_args;
+
+sub dcc_ip {
+    my ($args, $shash, $c, $iface, $cmd, @arg, @ip) = @_;
+    @arg = split(" ", $args);
+    if (@arg[0] eq "send" || @arg[0] eq "chat") {
+        $iface = Irssi::settings_get_str('dcc_ip_interface');
+        if ($router_c == 0) {
+            if ($iface eq "router") {
+                mywhois($args, $shash, $c);
+                Irssi::signal_stop();
+                $router_c=1;
+                $router_args = $args;
+                return;
+            } else {
+                $cmd = `/sbin/ifconfig $iface | head -n 2 | tail -n 1`;
+                $cmd =~ s/^[a-zA-Z\ ]*\://;
+                $cmd =~ s/\ .*$//;
+                $cmd =~ s/\n//;
+            }
+            Irssi::command("^set dcc_own_ip ".$cmd);
+        } else {
+            $router_c =0;
+        }
+    }
+};
+
+sub mywhois {
+    my ($args, $server, $witem) = @_;
+    my $nick =$server->{nick};
+    $server->redirect_event("whois", 1, $nick, 0, undef, {
+        "event 311" => "redir whos",
+        "event 318" => "redir whosend",
+        "" => "event empty"}
+    );
+    $server->send_raw("WHOIS " . $nick);
+}
+
+sub sig_whos {
+    my ($server, $data) = @_;
+    my @r = split(/\s/,$data);
+    $router_ip = $r[3];
+}
+
+sub sig_whosend {
+    my ($server, $data) = @_;
+
+    if ( defined $router_ip ) {
+        if ( !( $router_ip =~ m/\d+\.\d+\.\d+\.\d+/ ||
+                ($router_ip =~ m/[0-9a-fA-F:]+/ && $router_ip =~ m/:.*:/ ))) {
+            my $packed_ip = gethostbyname($router_ip);
+            if (defined $packed_ip) {
+                $router_ip = inet_ntoa($packed_ip);
+            } else {
+                $router_ip = undef;
+            }
+        }
+    }
+    if ( defined $router_ip ) {
+        Irssi::settings_set_str("dcc_own_ip", $router_ip);
+        $server->command('dcc '.$router_args );
+    }
+}
+
+Irssi::signal_add('redir whos', \&sig_whos);
+Irssi::signal_add('redir whosend', \&sig_whosend);
+
+Irssi::settings_add_str('dcc_ip', 'dcc_ip_interface', "ppp0");
+Irssi::command_bind ('dcc', 'dcc_ip');
+#EOF
+
+# vim:set ts=8 sw=4 expandtab:
-- 
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