PAM-Module for CODA-AUTHENTICATION 

pam_coda passes the users password to the Program /usr/bin/clog. 
If clog sucessfully generates an access token, this token is kept for this
session and pam_coda returns a PAM_PERMIT. If no token could be generated a PAM_AUTH_ERR is returned.

pam_coda takes the following options :

 ignore_root     the User Root is ignored (usefull when the Coda Server
                 could not be reached all the time)
 clog <filename> set clog Program (default: /usr/bin/clog)
 nullok          accept empty passwords
 not_set_pass    don't set the pam_authtok


example:
---------------------- /etc/pam.d/login --------------------
auth    sufficient     /lib/security/pam_coda.so ignore_root
----------------------------8<------------------------------