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#!/usr/bin/expect
set timeout 5
expect_after default {puts "\nFAIL"; exit 1}
if {$argc != 3} {
puts "usage: run_su.exp <user> <password> <prompt>"
exit 1
}
set user [lindex $argv 0]
set password [lindex $argv 1]
set prompt [lindex $argv 2]
# First, switch to the testsuite user
# (otherwise, no password will be asked)
send_user "# switch to the passwordless 'testsuite' user\n"
send_user "# and expect a '$ ' prompt\n"
spawn /bin/su testsuite
expect "$ " ;# Wait for the prompt
send_user "\n# make sure we are now 'testsuite'"
send_user "\n# id should return 'uid=424243(testsuite) gid=424243 groups=424243'"
send "\r" ;# restore the prompt for the logs
send "id\r" ;# Verify we are really testsuite
expect "uid=424243(testsuite) gid=424243 groups=424243\r"
expect "$ " ;# Wait for the prompt
send_user "\n\n"
send_user "# now switch to user '$user'\n"
send_user "# and expect a password prompt"
send "\r" ;# restore the prompt for the logs
send "su $user\r" ;# Switch to the user
expect "Password: " ;# Wait for the Password: prompt
# Wait a little bit more (su is not ready to receive the password)
sleep 0.1
send "$password\r" ;# Send the password
send_user "\n# password '$password' sent\n\n"
send_user "# expect failure"
expect "su: Authentication failure\r"
expect "$ " ;# Wait for the prompt
send_user "\n\n# make sure we are still 'testsuite'"
send "\r" ;# restore the prompt for the logs
expect "$ " ;# Wait for the prompt
send "id\r" ;# Verify we are really testsuite
expect "uid=424243(testsuite) gid=424243 groups=424243\r"
expect "$ " ;# Wait for the prompt
send "exit\r"
puts "\nPASS"
exit 0
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