NAME    [Toc]    [Back]

     pam_chauthtok -- perform password related functions within the PAM framework

LIBRARY    [Toc]    [Back]

     PAM Library (libpam, -lpam)

SYNOPSIS    [Toc]    [Back]

     #include <sys/types.h>
     #include <security/pam_appl.h>

     int
     pam_chauthtok(pam_handle_t *pamh, int flags);

DESCRIPTION    [Toc]    [Back]

     The pam_chauthtok function attempts to change the authentication token
     for the user associated with the pam context specified by the pamh argument.


     The flags argument is the binary or of zero or more of the following values:


     PAM_SILENT          Do not emit any messages.

     PAM_CHANGE_EXPIRED_AUTHTOK
                         Change only those authentication tokens that have
                         expired.

     If any other bits are set, pam_chauthtok will return PAM_SYMBOL_ERR.

RETURN VALUES    [Toc]    [Back]

     The pam_chauthtok function returns one of the following values:

     [PAM_ABORT]         General failure.

     [PAM_AUTHTOK_DISABLE_AGING]
                         Authentication token aging disabled.

     [PAM_AUTHTOK_ERR]   Authentication token failure.

     [PAM_AUTHTOK_LOCK_BUSY]
                         Authentication token lock busy.

     [PAM_AUTHTOK_RECOVERY_ERR]
                         Failed to recover old authentication token.

     [PAM_BUF_ERR]       Memory buffer error.

     [PAM_CONV_ERR]      Conversation failure.

     [PAM_PERM_DENIED]   Permission denied.

     [PAM_SERVICE_ERR]   Error in service module.

     [PAM_SYMBOL_ERR]    Invalid symbol.

     [PAM_SYSTEM_ERR]    System error.

     [PAM_TRY_AGAIN]     Try again.

SEE ALSO    [Toc]    [Back]

     pam(3), pam_strerror(3)

STANDARDS    [Toc]    [Back]

     X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules,
     June 1997.

AUTHORS    [Toc]    [Back]

     The pam_chauthtok function and this manual page were developed for the
     FreeBSD Project by ThinkSec AS and Network Associates Laboratories, the
     Security Research Division of Network Associates, Inc.  under
     DARPA/SPAWAR contract N66001-01-C-8035 (``CBOSS''), as part of the DARPA
     CHATS research program.


FreeBSD 5.2.1                    July 15, 2003                   FreeBSD 5.2.1