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PAM_CHAUTHTOK(3)	     Library Functions Manual		PAM_CHAUTHTOK(3)

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

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 ex-
			 pired.

     If any other bits are set, pam_chauthtok() will return PAM_BAD_CONSTANT.

RETURN VALUES
     The pam_chauthtok() function returns one of the following values:

     [PAM_SUCCESS]	 Success.

     [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_BAD_CONSTANT]  Bad constant.

     [PAM_BUF_ERR]	 Memory buffer error.

     [PAM_CONV_ERR]	 Conversation failure.

     [PAM_PERM_DENIED]	 Permission denied.

     [PAM_SERVICE_ERR]	 Error in service module.

     [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 Se-
     curity 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.dev>.

FreeBSD ports 15.quarterly	  May 31, 2025			PAM_CHAUTHTOK(3)

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