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# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
# 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
#
# This file is part of DejaGnu.
#
# DejaGnu is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# DejaGnu is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with DejaGnu; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
# Connect to HOSTNAME using Telnet. ARGS is a list of options.
# Currently the only supported option is "raw". Sets the fileid field
# in the config array and returns -1 for error or the spawn id.
#
proc telnet_open { hostname args } {
global verbose
global connectmode
global spawn_id
global timeout
global board_info
set raw 0
foreach arg $args {
switch $arg {
"raw" { set raw 1 }
}
}
set port 23
if {[board_info $hostname exists name]} {
set connhost [board_info $hostname name]
} else {
set connhost $hostname
}
if {[board_info $connhost exists hostname]} {
set hostname [board_info $connhost hostname]
}
if {[file exists /usr/kerberos/bin/telnet]} {
set telnet /usr/kerberos/bin/telnet
} else {
set telnet telnet
}
# Instead of unsetting it, let's return it. One connection at a
# time, please.
if {[board_info $connhost exists fileid]} {
return [board_info $connhost fileid]
}
# Get the hostname and port number from the config array.
if {[board_info $connhost exists netport]} {
set type $hostname
set hosttmp [split [board_info $connhost netport] ":"]
set hostname [lindex $hosttmp 0]
if { [llength $hosttmp] > 1 } {
set port [lindex $hosttmp 1]
}
unset hosttmp
} else {
set type target
}
if {[board_info $connhost exists shell_prompt]} {
set shell_prompt [board_info $connhost shell_prompt]
}
if {![info exists shell_prompt]} {
# If no prompt, then set it to something generic.
set shell_prompt ".*> "
}
set tries 0
set result -1
set need_respawn 1
verbose "Starting a telnet connection to $hostname:$port $shell_prompt" 2
while { $result < 0 && $tries <= 3 } {
if { $need_respawn } {
set need_respawn 0
spawn $telnet $hostname $port
}
expect {
"Trying " {
exp_continue
}
-re "$shell_prompt.*$" {
verbose "Got prompt\n"
set result 0
}
-re "nt Name:|ogin:" {
if {[board_info $connhost exists telnet_username]} {
exp_send "[board_info $connhost telnet_username]\n"
exp_continue
}
if {[board_info $connhost exists username]} {
exp_send "[board_info $connhost username]\n"
exp_continue
}
perror "telnet: need to login"
break
}
"assword:" {
if {[board_info $connhost exists telnet_password]} {
exp_send "[board_info $connhost telnet_password]\n"
exp_continue
}
if {[board_info $connhost exists password]} {
exp_send "[board_info $connhost password]\n"
exp_continue
}
perror "telnet: need a password"
break
}
-re "advance.*y/n.*\\?" {
exp_send "n\n"
exp_continue
}
-re {([Aa]dvanced|[Ss]imple) or ([Ss]imple|[Aa]dvanced)} {
exp_send "simple\n"
exp_continue
}
"Connected to" {
exp_continue
}
"unknown host" {
exp_send "\003"
perror "telnet: unknown host"
break
}
"VxWorks Boot" {
exp_send "@\n"
sleep 20
exp_continue
}
-re "Escape character is.*\\.\[\r\n\]" {
if { $raw || [board_info $connhost exists dont_wait_for_prompt] } {
set result 0
} else {
if {[board_info $connhost exists send_initial_cr]} {
exp_send "\n"
}
exp_continue
}
}
"has logged on from" {
exp_continue
}
"You have no Kerberos tickets" {
warning "telnet: no kerberos Tickets, please kinit"
break
}
-re "Connection refused.*$" {
catch "exp_send \"\003\"" foo
sleep 5
warning "telnet: connection refused."
}
-re "Sorry, this system is engaged.*" {
exp_send "\003"
warning "telnet: already connected."
}
"Connection closed by foreign host.*$" {
warning "telnet: connection closed by foreign host."
break
}
-re "\[\r\n\]+" {
exp_continue
}
timeout {
exp_send "\n"
}
eof {
warning "telnet: got unexpected EOF from telnet."
catch close
catch wait
set need_respawn 1
sleep 5
}
}
incr tries
}
# We look for this here again cause it means something went wrong,
# and it doesn't always show up in the expect in buffer till the
# server times out.
if {[info exists expect_out(buffer)]} {
if {[regexp "assword:|ogin:" $expect_out(buffer)]} {
perror "telnet: need to supply a login and password."
}
}
if { $result < 0 } {
catch close
catch wait
set spawn_id -1
}
if { $spawn_id >= 0 } {
verbose "setting board_info($connhost,fileid) to $spawn_id" 3
set board_info($connhost,fileid) $spawn_id
}
return $spawn_id
}
# Put the Telnet connection to HOSTNAME into binary mode.
#
proc telnet_binary { hostname } {
if {[board_info $hostname exists fileid]} {
remote_send $hostname " "
remote_expect $hostname 5 {
-re "telnet> *$" {}
default {}
}
remote_send $hostname "set binary\n"
remote_expect $hostname 5 {
-re "Format is .*telnet> *$" {
remote_send $hostname "toggle binary\n"
exp_continue
}
-re "Negotiating network ascii.*telnet> *$" {
remote_send $hostname "toggle binary\n"
exp_continue
}
-re "Negotiating binary.*\[\r\n\].*$" { }
-re "binary.*unknown argument.*telnet> *$" {
remote_send $hostname "mode character\n"
}
-re "Already operating in binary.*\[\r\n\].*$" { }
timeout {
warning "Never got binary response from telnet."
}
}
}
}
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