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PAM_CHAUTHTOK(3)           Library Functions Manual           PAM_CHAUTHTOK(3)

NAME
     pam_chauthtok -- perform password related functions within the PAM
     framework

LIBRARY
     Pluggable Authentication Module Library (libpam, -lpam)

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

     int
     pam_chauthtok(pam_handle_t *pamh, int flags);

DESCRIPTION
     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
     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
     pam(3), pam_strerror(3)

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

AUTHORS
     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.

     The OpenPAM library is maintained by Dag-Erling Smorgrav <des@des.no>.

NetBSD 7.1.2                  September 12, 2014                  NetBSD 7.1.2