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Network Security Secure-Shell
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OpenSSH hangs after TIOCSCTTY.

Subject: OpenSSH hangs after TIOCSCTTY.
Date: Sun, 8 Apr 2007 20:10:07 +0530
Debian Etch with openssh-server 4.3p2-9, running Gforge 4.5.14-22, 
libpam-pgsql 0.5.2-9+b1, libpam-runtime 0.79-4

There are some system users (in /etc/passwd), and some users are 
defined in PostgreSQL/PAM.  I can remote login to the system users 
just fine.  However, when I try to login as any user defined in 
PostgreSQL, sshd logs me in using the password, prints MOTD, but 
never gives a shell prompt.

The last few lines of sshd debug are (sorry, it'll wrap):

Apr  8 16:37:19 code sshd[7863]: debug1: server_input_channel_req: 
channel 0 request shell reply 0
Apr  8 16:37:19 code sshd[7863]: debug1: session_by_channel: session 0 
channel 0
Apr  8 16:37:19 code sshd[7863]: debug1: session_input_channel_req: 
session 0 req shell
Apr  8 16:37:19 code sshd[7863]: debug1: PAM: setting PAM_TTY 
to "/dev/pts/2"
Apr  8 16:37:19 code sshd[7868]: debug1: Setting controlling tty using 
TIOCSCTTY.
Apr  8 16:37:19 code sshd[7863]: debug2: fd 3 setting TCP_NODELAY
Apr  8 16:37:19 code sshd[7868]: debug3: Normalising mapped IPv4 in 
IPv6 address
Apr  8 16:37:19 code sshd[7863]: debug2: channel 0: rfd 9 isatty
Apr  8 16:37:19 code sshd[7868]: debug3: Copy environment: 
LANG=en_US.UTF-8
Apr  8 16:37:19 code sshd[7863]: debug2: fd 9 setting O_NONBLOCK
Apr  8 16:37:19 code sshd[7868]: debug3: channel 0: close_fds r -1 
w -1 e -1 c -1
Apr  8 16:37:20 code sshd[7863]: debug3: fd 8 is O_NONBLOCK
Apr  8 16:37:20 code sshd[7868]: debug3: channel 1: close_fds r 7 w 7 
e -1 c -1

Seen a number of references to this on the 'net, but none that solved 
this issue.  The same problem occurs if I try to ssh localhost too.

Regards,

-- Raju
-- 
Raj Mathur            raju@kandalaya.org   http://kandalaya.org/
       GPG: 78D4 FC67 367F 40E2 0DD5  0FEF C968 D0EF CC68 D17F
                      It is the mind that moves

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