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.\" Generated from pam_sm_chauthtok.c by gendoc.pl
.\" $Id: pam_sm_chauthtok.c 648 2013-03-05 17:54:27Z des $
.Dd September 7, 2013
.Dt PAM_SM_CHAUTHTOK 3
.Os
.Sh NAME
.Nm pam_sm_chauthtok
.Nd service module implementation for pam_chauthtok
.Sh LIBRARY
.Lb libpam
.Sh SYNOPSIS
.In sys/types.h
.In security/pam_appl.h
.In security/pam_modules.h
.Ft "int"
.Fn pam_sm_chauthtok "pam_handle_t *pamh" "int flags" "int argc" "const char **argv"
.Sh DESCRIPTION
The
.Fn pam_sm_chauthtok
function is the service module's implementation
of the
.Xr pam_chauthtok 3
API function.
.Pp
When the application calls
.Xr pam_chauthtok 3 ,
the service function is
called twice, first with the
.Dv PAM_PRELIM_CHECK
flag set and then again
with the
.Dv PAM_UPDATE_AUTHTOK
flag set.
.Sh RETURN VALUES
The
.Fn pam_sm_chauthtok
function returns one of the following values:
.Bl -tag -width 18n
.It Bq Er PAM_ABORT
General failure.
.It Bq Er PAM_AUTHTOK_DISABLE_AGING
Authentication token aging disabled.
.It Bq Er PAM_AUTHTOK_ERR
Authentication token failure.
.It Bq Er PAM_AUTHTOK_LOCK_BUSY
Authentication token lock busy.
.It Bq Er PAM_AUTHTOK_RECOVERY_ERR
Failed to recover old authentication token.
.It Bq Er PAM_BUF_ERR
Memory buffer error.
.It Bq Er PAM_CONV_ERR
Conversation failure.
.It Bq Er PAM_IGNORE
Ignore this module.
.It Bq Er PAM_PERM_DENIED
Permission denied.
.It Bq Er PAM_SERVICE_ERR
Error in service module.
.It Bq Er PAM_SYSTEM_ERR
System error.
.It Bq Er PAM_TRY_AGAIN
Try again.
.El
.Sh SEE ALSO
.Xr pam 3 ,
.Xr pam_chauthtok 3 ,
.Xr pam_strerror 3
.Sh STANDARDS
.Rs
.%T "X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules"
.%D "June 1997"
.Re
.Sh AUTHORS
The
.Fn pam_sm_chauthtok
function and this manual page were
developed for the
.Fx
Project by ThinkSec AS and Network Associates Laboratories, the
Security Research Division of Network Associates, Inc.\& under
DARPA/SPAWAR contract N66001-01-C-8035
.Pq Dq CBOSS ,
as part of the DARPA CHATS research program.
.Pp
The OpenPAM library is maintained by
.An Dag-Erling Sm\(/orgrav Aq des@des.no .
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