PAM_CHAUTHTOK(3)        NetBSD Library Functions Manual       PAM_CHAUTHTOK(3)

NAME
     pam_chauthtok -- perform password related functions within the PAM frame-
     work

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 argu-
     ment.

     The flags argument is the binary or of zero or more of the following val-
     ues:

     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.

NetBSD 6.0.1                   December 18, 2011                  NetBSD 6.0.1

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