/usr/bin/expect_passmass is in expect 5.45-6.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | #!/bin/sh
# -*- tcl -*-
# The next line is executed by /bin/sh, but not tcl \
exec tclsh8.6 "$0" ${1+"$@"}
package require Expect
# passmass: change password on many machines
# Synopsis: passmass host1 host2 host3 ....
# Don Libes - March 11, 1991
# Description: Change passwords on the named machines.
#
# See passmass.man for further info.
exp_version -exit 5.0
if {$argc==0} {
send_user "usage: $argv0 host1 host2 host3 . . .\n"
exit
}
expect_before -i $user_spawn_id \003 exit
proc badhost {host emsg} {
global badhosts
send_user "\r\n\007password not changed on $host - $emsg\n\n"
if {0==[llength $badhosts]} {
set badhosts $host
} else {
set badhosts [concat $badhosts $host]
}
}
# set defaults
set login "rlogin"
set program "passwd"
set user [exec whoami]
set su 0
set timeout -1
stty -echo
if {!$su} {
send_user "old password: "
expect_user -re "(.*)\n"
send_user "\n"
set password(old) $expect_out(1,string)
set password(login) $expect_out(1,string)
send_user "new password: "
expect_user -re "(.*)\n"
send_user "\n"
set password(new) $expect_out(1,string)
send_user "retype new password: "
expect_user -re "(.*)\n"
set password(newcheck) $expect_out(1,string)
send_user "\n"
} else {
send_user "login password: "
expect_user -re "(.*)\n"
send_user "\n"
set password(login) $expect_out(1,string)
send_user "root password: "
expect_user -re "(.*)\n"
send_user "\n"
set password(old) $expect_out(1,string)
send_user "new password: "
expect_user -re "(.*)\n"
send_user "\n"
set password(new) $expect_out(1,string)
send_user "retype new password: "
expect_user -re "(.*)\n"
set password(newcheck) $expect_out(1,string)
send_user "\n"
}
stty echo
trap exit SIGINT
if ![string match $password(new) $password(newcheck)] {
send_user "mismatch - password unchanged\n"
exit
}
set timeout -1
set badhosts {}
for {set i 0} {$i<$argc} {incr i} {
set arg [lindex $argv $i]
switch -- $arg "-user" {
incr i
set user [lindex $argv $i]
continue
} "-prompt" {
incr i
set prompt [lindex $argv $i]
continue
} "-rlogin" {
set login "rlogin"
continue
} "-slogin" {
set login "slogin"
continue
} "-ssh" {
set login "ssh"
continue
} "-telnet" {
set login "telnet"
continue
} "-program" {
incr i
set program [lindex $argv $i]
continue
} "-timeout" {
incr i
set timeout [lindex $argv $i]
continue
} "-su" {
incr i
set su [lindex $argv $i]
continue
}
set host $arg
if {[string match $login "rlogin"]} {
set pid [spawn rlogin $host -l $user]
} elseif {[string match $login "slogin"]} {
set pid [spawn slogin $host -l $user]
} elseif {[string match $login "ssh"]} {
set pid [spawn ssh $host -l $user]
} else {
set pid [spawn telnet $host]
expect -nocase -re "(login|username):.*" {
send "$user\r"
}
}
if ![info exists prompt] {
if {[string match $user "root"]} {
set prompt "# "
} else {
set prompt "(%|\\\$|#) "
}
}
set logged_in 0
while {1} {
expect -nocase "password*" {
send "$password(login)\r"
} eof {
badhost $host "spawn failed"
break
} timeout {
badhost $host "could not log in (or unrecognized prompt)"
exec kill $pid
expect eof
break
} -re "incorrect|invalid" {
badhost $host "bad password or login"
exec kill $pid
expect eof
break
} -re $prompt {
set logged_in 1
break
}
}
if (!$logged_in) {
wait
continue
}
if ($su) {
send "su -\r"
expect -nocase "password:"
send "$password(old)\r"
expect "# "
send "$program root\r"
} else {
send "$program\r"
}
expect -nocase -re "(old|existing login) password:.*" {
send "$password(old)\r"
expect -nocase "sorry*" {
badhost $host "old password is bad?"
continue
} -nocase "password:"
} -nocase -re "new password:" {
# got prompt, fall through
} timeout {
badhost $host "could not recognize prompt for password"
continue
}
send "$password(new)\r"
expect -re "not changed|unchanged" {
badhost $host "new password is bad?"
continue
} -nocase -re "(password|verification|verify|again):.*"
send "$password(new)\r"
expect -nocase -re "(not changed|incorrect|choose new).*" {
badhost $host "password is bad?"
continue
} -re "$prompt"
send_user "\n"
close
wait
}
if {[llength $badhosts]} {
send_user "\nfailed to set password on $badhosts\n"
}
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