added support for an alternative ssh port for autotest

remote_access.sh

 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Library for setting up remote access and running remote commands.
 
 DEFAULT_PRIVATE_KEY="${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts/\
 ssh_keys/testing_rsa"
 
 DEFINE_string remote "" "remote hostname/IP of running Chromium OS instance"
 DEFINE_string private_key "$DEFAULT_PRIVATE_KEY" \
   "Private key of root account on remote host"
+DEFINE_integer ssh_port 22 \
+  "SSH port of the remote machine running Chromium OS instance"
 
 # Copies $1 to $2 on remote host
 function remote_cp() {
   REMOTE_OUT=$(scp  -o StrictHostKeyChecking=no -o \
     UserKnownHostsFile=$TMP_KNOWN_HOSTS $1 root@$FLAGS_remote:$2)
   return ${PIPESTATUS[0]}
 }
 
 function remote_sh() {
-  REMOTE_OUT=$(ssh  -o StrictHostKeyChecking=no -o \
+  REMOTE_OUT=$(ssh -p ${FLAGS_ssh_port} -o StrictHostKeyChecking=no -o \
     UserKnownHostsFile=$TMP_KNOWN_HOSTS root@$FLAGS_remote "$@")
   return ${PIPESTATUS[0]}
 }
 
 function remote_sh_allow_changed_host_key() {
   rm -f $TMP_KNOWN_HOSTS
   remote_sh "$@"
 }
 
 function set_up_remote_access() {
@@ skipping 26 matching lines @@
 
 function remote_access_init() {
   TMP_PRIVATE_KEY=$TMP/private_key
   TMP_KNOWN_HOSTS=$TMP/known_hosts
   if [ -z "$FLAGS_remote" ]; then
     echo "Please specify --remote=<IP-or-hostname> of the Chromium OS instance"
     exit 1
   fi
   set_up_remote_access
 }