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OpenDarwin 7.2.1 - man page for pam_close_session (opendarwin section 3)

PAM_OPEN_SESSION(3)		     App. Programmers' Manual		      PAM_OPEN_SESSION(3)

NAME
       pam_open/close_session - PAM session management

SYNOPSIS
       #include <security/pam_appl.h>

       int pam_open_session(pam_handle_t *pamh, int  flags);

       int pam_close_session(pam_handle_t *pamh, int  flags);

DESCRIPTION
       PAM provides management-hooks for the initialization and termination of a session.

       pam_open_session
	      Use this function to signal that an authenticated user session has begun. It should
	      be called only after the user is properly identified and (where necessary) has been
	      granted their credentials with pam_authenticate(3) and pam_setcred(3) respectively.

	      Some  types of functions associated with session initialization are logging for the
	      purposes of system-audit and mounting directories (the user's  home  directory  for
	      example).  These	should	not  concern the application. It should be noted that the
	      effective uid, geteuid(2), of the application should be of sufficient privilege  to
	      perform such tasks.

       pam_close_session
	      Use  this  function  to  signal that a user session has terminated. In general this
	      function may not need to be located in the same application as  the  initialization
	      function, pam_open_session.

	      Typically,  this	function will undo the actions of pam_open_session.  That is, log
	      audit information concerning the end of the user session or unmount the user's home
	      directory. Apart from having sufficient privilege the details of the session termi-
	      nation should not concern the calling application. It is good programming practice,
	      however, to cease acting on behalf of the user on returning from this call.

RETURN VALUE
       A  successful return from the session management functions will be indicated with PAM_SUC-
       CESS.

       The specific error indicating a failure to open or close a session is PAM_SESSION_ERR.  In
       general other return values may be returned. They should be treated as indicating failure.

ERRORS
       May be translated to text with pam_strerror(3).

CONFORMING TO
       OSF-RFC 86.0, October 1995.

BUGS
       none known.

SEE ALSO
       pam_start(3),  pam_authenticate(3),  pam_setcred(3),  pam_get_item(3), pam_strerror(3) and
       pam(3).

       Also, see the three Linux-PAM Guides, for System administrators,  module  developers,  and
       application developers.

Linux-PAM 0.55				    1997 Jan 4			      PAM_OPEN_SESSION(3)


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