From 4a89177a94f3a5ca3f3a1d1231ae5cdd6abd5155 Mon Sep 17 00:00:00 2001
From: minima <minima>
Date: Thu, 22 Mar 2001 18:03:33 +0000
Subject: [PATCH] added back in ax25 OUTGOING support

---
 perl/DXDebug.pm |  9 ++++---
 perl/ExtMsg.pm  | 62 +++++++++++++++++++++++++++++++++++++------------
 2 files changed, 53 insertions(+), 18 deletions(-)

diff --git a/perl/DXDebug.pm b/perl/DXDebug.pm
index ac452413..b55d01fc 100644
--- a/perl/DXDebug.pm
+++ b/perl/DXDebug.pm
@@ -21,7 +21,7 @@ use DXLog ();
 use Carp qw(cluck);
 
 %dbglevel = ();
-$fp = DXLog::new('debug', 'dat', 'd');
+$fp = undef;
 
 # Avoid generating "subroutine redefined" warnings with the following
 # hack (from CGI::Carp):
@@ -71,18 +71,21 @@ sub dbginit
 		$SIG{__WARN__} = sub { _store($@, Carp::shortmess(@_)); };
 		$SIG{__DIE__} = sub { _store($@, Carp::longmess(@_)); };
 	}
+
+	$fp = DXLog::new('debug', 'dat', 'd');
 }
 
 sub dbgclose
 {
 	$SIG{__DIE__} = $SIG{__WARN__} = 'DEFAULT';
-	$fp->close();
+	$fp->close() if $fp;
+	undef $fp;
 }
 
 sub dbg
 {
 	my $l = shift;
-	if ($dbglevel{$l} || $l eq 'err') {
+	if ($fp && ($dbglevel{$l} || $l eq 'err')) {
 	    my @in = @_;
 		my $t = time;
 		for (@in) {
diff --git a/perl/ExtMsg.pm b/perl/ExtMsg.pm
index 9b4bb061..e181722d 100644
--- a/perl/ExtMsg.pm
+++ b/perl/ExtMsg.pm
@@ -70,7 +70,7 @@ sub dequeue
 			} 
 		}
 		if ($conn->{state} eq 'WC' && exists $conn->{cmd} && @{$conn->{cmd}} == 0) {
-			$conn->to_connected($conn->{call}, 'O', 'telnet');
+			$conn->to_connected($conn->{call}, 'O', $conn->{sort});
 		}
 	} elsif ($conn->{msg} =~ /\cJ/) {
 		my @lines =  $conn->{msg} =~ /([^\cM\cJ]*)\cM?\cJ/g;
@@ -99,7 +99,7 @@ sub dequeue
 				if (exists $conn->{cmd} && @{$conn->{cmd}}) {
 					$conn->_docmd($msg);
 					if ($conn->{state} eq 'WC' && exists $conn->{cmd} &&  @{$conn->{cmd}} == 0) {
-						$conn->to_connected($conn->{call}, 'O', 'telnet');
+						$conn->to_connected($conn->{call}, 'O', $conn->{sort});
 					}
 				}
 			}
@@ -157,6 +157,7 @@ sub start_connect
 	my $f = new IO::File $fn;
 	push @{$conn->{cmd}}, <$f>;
 	$f->close;
+	$conn->{state} = 'WC';
 	$conn->_dotimeout($deftimeout);
 	$conn->_docmd;
 }
@@ -211,22 +212,53 @@ sub _doconnect
 			dbg('connect', "***Connect Failed to $host $port $!");
 		}
 	} elsif ($sort eq 'ax25' || $sort eq 'prog') {
-		my $sock = new IO::Socket::INET;
-		local *H;
-		my $wrt = \*H;
-		
-		if ($conn->{pid} = open3("<&$sock", ">&$sock", '', $line)) {
-			$conn->{sock} = $sock;
-			$conn->{csort} = $sort;
-			$conn->{lineend} = "\cM" if $sort eq 'ax25';
-			dbg('connect', "started pid: $conn->{pid} as $line");
+		local $^F = 10000;		# make sure it ain't closed on exec
+		my ($a, $b) = IO::Socket->socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC);
+		if ($a && $b) {
+			$r = 1;
+			$a->autoflush(1);
+			$b->autoflush(1);
+			my $pid = fork;
+			if (defined $pid) {
+				if ($pid) {
+					close $b;
+					$conn->{sock} = $a;
+					$conn->{csort} = $sort;
+					$conn->{lineend} = "\cM" if $sort eq 'ax25';
+					$conn->{pid} = $pid;
+					if ($conn->{rproc}) {
+						my $callback = sub {$conn->_rcv};
+						Msg::set_event_handler ($a, read => $callback);
+					}
+					dbg('connect', "started pid: $conn->{pid} as $line");
+				} else {
+					$^W = 0;
+					dbgclose();
+					STDIN->close;
+					STDOUT->close;
+					STDOUT->close;
+					*STDIN = IO::File->new_from_fd($b, 'r') or die;
+					*STDOUT = IO::File->new_from_fd($b, 'w') or die;
+					*STDERR = IO::File->new_from_fd($b, 'w') or die;
+					close $a;
+					unless ($^O =~ /^MS/) {
+#						$SIG{HUP} = 'IGNORE';
+						$SIG{HUP} = $SIG{CHLD} = $SIG{TERM} = $SIG{INT} = 'DEFAULT';
+						alarm(0);
+					}
+					exec "$line" or dbg('err', "exec '$line' failed $!");
+				} 
+			} else {
+				dbg('err', "cannot fork");	
+				$r = undef;
+			}
 		} else {
-			dbg('connect', "can't start $line $!");
+			dbg('err', "no socket pair $!");
 		}
 	} else {
 		dbg('err', "invalid type of connection ($sort)");
-		$conn->disconnect;
 	}
+	$conn->disconnect unless $r;
 	return $r;
 }
 
@@ -268,13 +300,13 @@ sub _dochat
 		my ($expect, $send) = $cmd =~ /^\s*\'(.*)\'\s+\'(.*)\'/;
 		if ($expect) {
 			dbg('connect', "expecting: \"$expect\" received: \"$line\"");
-			if ($conn->{abort} && $line =~ /$conn->{abort}/i) {
+			if ($conn->{abort} && $line =~ /\Q$conn->{abort}/i) {
 				dbg('connect', "aborted on /$conn->{abort}/");
 				$conn->disconnect;
 				delete $conn->{cmd};
 				return;
 			}
-			if ($line =~ /$expect/i) {
+			if ($line =~ /\Q$expect/i) {
 				dbg('connect', "got: \"$expect\" sending: \"$send\"");
 				$conn->send_later($send);
 				delete $conn->{msg}; # get rid any input if a match
-- 
2.43.0