#!/usr/bin/expect -f

# This is a script for repeatedly logging into the localhost
# using `rlogin` in order to apparently see a symptoms described
# in bug #332198.
# As described in the bug log, sometimes `rlogind` will fail to
# establish a connection, because it starts "login" process and
# the latter fails with "unable to determine TTY name, got /dev/pts/1"
# message.
# 
# BUGS
# 
# * the script rlogins to localhost
# * the script doesn't handle passwdord prompt, because it's intended
#   to use .rhosts auth and expects shell prompt immediately after
#   `rlogin`
# * the regexp for shell prompt is hardcoded

log_user 0
match_max 8192

while {1} {
    set rlogin_spawn [spawn rlogin localhost]
    if { $rlogin_spawn == 0 } { exit 1 }
    expect {
	-timeout 10 -re "^.*(Last login\[^\r\n\]*).*\n(\[^\r\n\]*\[#$\] )$" {
	    send_error "$expect_out(1,string)\n"
	    send_error "$expect_out(2,string)\n"
#	    send_error "$expect_out(0,string)\n"
	}
	timeout {
	    send_error "TIMEOUT/prompt\n"
	    send_error "$expect_out(buffer)\n"
	    send_error "RETRYING\n"
	    log_user 1
	    send "tty /\r"
	    expect -timeout 2 -re "^.*\r?\n(\[^\r\n\]*# )$" {}
	    send "tty /\r"
	    expect -timeout 2 -re "^.*\r?\n(\[^\r\n\]*# )$" {}
	    send_error "\n"
	    exit 2
	}
    }
    send "tty\r"
    expect {
	-timeout 4 -re "tty\r?\n(\[^\r\n\]*)\r?\n(\[^\r\n\]*\[#$\] )$" {
	    send_error "$expect_out(2,string)$expect_out(1,string)\n"
#	    send_error "$expect_out(0,string)\n"
	}
	timeout { send_error "TIMEOUT/tty\n" ; exit 3 }
    }
    send "exit\r"
    expect {
	-timeout 2 eof {
#	    send_error "OK4: EOF\n"
	}
	timeout { send_error "TIMEOUT/eof\n" ; exit 4 }
    }
    wait
}
# vi: set sw=4: