CODEWITHSUNDEEP
sshexpect
Sonia Hamilton
Sonia Hamilton

Reputation: 4409

sshfs not using password in expect script

I've written a little script to supply a password to sshfs, but for some reason sshfs isn't grabbing the password. Any pointers? (PS I know ssh keys are better/safer, but politics where I work prevents key based authentication being setup on the target server - sigh... ).

#!/usr/bin/expect
# NOT WORKING!!
exp_internal 1
spawn sshfs server:/export/pc_storage /home/sonia/mnt/server
expect {
    "assword:" {
        send "secret\r\r"
        send_user "\n"
    }
    timeout {
        send_user "timed out!\n"
     }
}

To terminate the password, I've tried \r \n \r\r - none work.

Debugging output, showing that password prompt is triggering:

spawn sshfs server:/export/pc_storage /home/sonia/mnt/server
parent: waiting for sync byte
parent: telling child to go ahead
parent: now unsynchronized from child
spawn: returns {17532}

expect: does "" (spawn_id exp6) match glob pattern "assword:"? no
pcuser@server's password: 
expect: does "pcuser@server's password: " (spawn_id exp6) match glob pattern "assword:"? yes
expect: set expect_out(0,string) "assword:"
expect: set expect_out(spawn_id) "exp6"
expect: set expect_out(buffer) "pcuser@server's password:"
send: sending "secret\r\r" to { exp6 }

% uname -a
Linux zapote 2.6.38-10-generic-pae #46-Ubuntu SMP Tue Jun 28 16:54:49 UTC 2011 i686 i686 i386 GNU/Linux

% sshfs -V
SSHFS version 2.2
FUSE library version: 2.8.4
fusermount version: 2.8.4
using FUSE kernel interface version 7.12

SOLVED:

(I can't post an answer as I don't have 100 points - double sigh)

I need to fix this up a bit... For example I hard coded PS1 in my .bashrc to "bash_prompt" (I use zsh by default).

#!/usr/bin/expect

# FIX: get homedir from env, set bash prompt somehow...

set timeout 30

spawn /bin/bash
expect "bash_prompt"
send_user "Shell spawned.\n"

send -- "sudo umount /home/sonia/mnt/server &> /dev/null\r"
expect "bash_prompt"

send -- "sshfs server:/export/pc_storage /home/sonia/mnt/server\r"
expect {
    "assword:" {
        send "secret\r"
        send_user "\n"
    }
    timeout {
        send_user "timed out!\n"
    }
}
expect "bash_prompt"

Upvotes: 3

Views: 5856

Answers (3)

Sonia Hamilton
Sonia Hamilton

Reputation: 4409

I need to fix this up a bit... For example I hard coded PS1 in my .bashrc to "bash_prompt" (I use zsh by default).

#!/usr/bin/expect

# FIX: get homedir from env, set bash prompt somehow...

set timeout 30

spawn /bin/bash
expect "bash_prompt"
send_user "Shell spawned.\n"

send -- "sudo umount /home/sonia/mnt/server &> /dev/null\r"
expect "bash_prompt"

send -- "sshfs server:/export/pc_storage /home/sonia/mnt/server\r"
expect {
    "assword:" {
        send "secret\r"
        send_user "\n"
    }
    timeout {
        send_user "timed out!\n"
    }
}
expect "bash_prompt"

Upvotes: 2

Jim Clouse
Jim Clouse

Reputation: 8970

Rather than use Expect, you can just supply the password directly. Try this:

echo your-password | sshfs server:/export/pc_storage /home/sonia/mnt/server -o password_stdin

Not sure if you can make this work with your password policies, but its worth a shot.

Upvotes: 6

blueFast
blueFast

Reputation: 44331

\r\r does not seem right. Have you tried \r\n?

Upvotes: 0

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