add test for connecting to a unix socket

regress/Makefile

@@ -23,6 +23,7 @@ clean:
 distclean:	clean
 
 LTESTS= 	connect \
+		connect-unix \
 		proxy-connect \
 		sshfp-connect \
 		connect-privsep \

regress/connect-unix.sh

@@ -0,0 +1,43 @@
+tid="simple connect"
+
+SCRIPT_DIR=`dirname $0`
+
+start_sshd_unix()
+{
+	${SUDO} env NC=${NC} SSHD=${SSHD} OBJ=${OBJ} ${SCRIPT_DIR}/sshd-unix.sh&
+
+	trace "wait for sshd-unix"
+	i=0;
+	while [ ! -f ${OBJ}/sshd-unix.pid -a $i -lt 10 ]; do
+		i=`expr $i + 1`
+		sleep $i
+	done
+
+	i=0;
+	while [ ! -S ${OBJ}/sshd.socket -a $i -lt 10 ]; do
+		i=`expr $i + 1`
+		sleep $i
+	done
+
+	test -S ${OBJ}/sshd.socket || fatal "no sshd.socket created"
+	chmod 0666 ${OBJ}/sshd.socket
+}
+
+stop_sshd_unix()
+{
+	kill `cat ${OBJ}/sshd-unix.pid`
+}
+
+
+# create client config
+sed -e /Hostname/d -e /HostKeyAlias/d -e /Port/d -e /StrictHostKeyChecking/d < $OBJ/ssh_config > $OBJ/ssh_unix_config
+echo StrictHostKeyChecking=no >> $OBJ/ssh_unix_config
+
+start_sshd_unix
+
+trace "direct unix socket connect"
+${SSH} -F ${OBJ}/ssh_unix_config ${OBJ}/sshd.socket true
+if [ $? -ne 0 ]; then
+	fail "ssh direct connect unix failed"
+fi
+

regress/sshd-unix.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# create an ssh server listening on a Unix socket, using netcat
+
+run_sshd_unix() {
+	# see example in netcat man page, modified here for a unix socket
+	rm -f ${OBJ}/sshd.fifo && mkfifo ${OBJ}/sshd.fifo
+	rm -f ${OBJ}/sshd.socket
+	touch ${OBJ}/sshd-unix.log ; chmod 0644 ${OBJ}/sshd-unix.log
+	cat ${OBJ}/sshd.fifo | ${SSHD} -i -f ${OBJ}/sshd_config "$@" -E ${OBJ}/sshd-unix.log | ${NC} -l -U ${OBJ}/sshd.socket > ${OBJ}/sshd.fifo
+}
+
+run_sshd_unix