1#!/usr/bin/perl
2#	$OpenBSD: echo.pl,v 1.2 2017/10/27 16:59:14 bluhm Exp $
3
4# Copyright (c) 2010-2013 Alexander Bluhm <bluhm@openbsd.org>
5#
6# Permission to use, copy, modify, and distribute this software for any
7# purpose with or without fee is hereby granted, provided that the above
8# copyright notice and this permission notice appear in all copies.
9#
10# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17
18use strict;
19use warnings;
20use Socket;
21use Socket6;
22
23use Child;
24use Client;
25use Server;
26require 'funcs.pl';
27
28sub usage {
29	die "usage: echo.pl copy|splice [args-test.pl]\n";
30}
31
32my $test;
33our %args;
34if (@ARGV and -f $ARGV[-1]) {
35	$test = pop;
36	do $test
37	    or die "Do test file $test failed: ", $@ || $!;
38}
39@ARGV == 1 or usage();
40
41exit 0 if $args{noecho} || $args{client}{alarm} || $args{server}{alarm};
42
43my $r = Server->new(
44    forward		=> $ARGV[0],
45    func		=> \&relay,
46    logfile		=> "relay.log",
47    listendomain	=> AF_INET,
48    listenaddr		=> "127.0.0.1",
49    %{$args{relay}},
50);
51my $s = Child->new(
52    logfile		=> "server.log",
53    oobinline		=> 1,
54    %{$args{server}},
55    func		=> sub {
56	($args{server}{func} || \&read_stream)->(@_);
57	eval { shutout(@_) };
58    },
59);
60my $c = Client->new(
61    connectdomain	=> AF_INET,
62    connectaddr		=> "127.0.0.1",
63    connectport		=> $r->{listenport},
64    oobinline		=> 1,
65    %{$args{client}},
66    func		=> sub {
67	$s->run->up;
68	eval { ($args{client}{func} || \&write_stream)->(@_) };
69	warn $@ if $@;
70	eval { shutout(@_) };
71	$s->down;
72    },
73);
74
75$r->run;
76$c->run->up;
77$r->up;
78
79$c->down;
80$r->down;
81$s->{pid} = -1;  # XXX hack
82$s->down;
83
84exit if $args{nocheck} || $args{client}{nocheck};
85
86check_logs($c, $r, $s, %args);
87