1.\" Generated from pam_sm_chauthtok.c by gendoc.pl
2.\" $Id: pam_sm_chauthtok.c 648 2013-03-05 17:54:27Z des $
3.Dd September 12, 2014
4.Dt PAM_SM_CHAUTHTOK 3
5.Os
6.Sh NAME
7.Nm pam_sm_chauthtok
8.Nd service module implementation for pam_chauthtok
9.Sh LIBRARY
10.Lb libpam
11.Sh SYNOPSIS
12.In sys/types.h
13.In security/pam_appl.h
14.In security/pam_modules.h
15.Ft "int"
16.Fn pam_sm_chauthtok "pam_handle_t *pamh" "int flags" "int argc" "const char **argv"
17.Sh DESCRIPTION
18The
19.Fn pam_sm_chauthtok
20function is the service module's implementation
21of the
22.Xr pam_chauthtok 3
23API function.
24.Pp
25When the application calls
26.Xr pam_chauthtok 3 ,
27the service function is
28called twice, first with the
29.Dv PAM_PRELIM_CHECK
30flag set and then again
31with the
32.Dv PAM_UPDATE_AUTHTOK
33flag set.
34.Sh RETURN VALUES
35The
36.Fn pam_sm_chauthtok
37function returns one of the following values:
38.Bl -tag -width 18n
39.It Bq Er PAM_ABORT
40General failure.
41.It Bq Er PAM_AUTHTOK_DISABLE_AGING
42Authentication token aging disabled.
43.It Bq Er PAM_AUTHTOK_ERR
44Authentication token failure.
45.It Bq Er PAM_AUTHTOK_LOCK_BUSY
46Authentication token lock busy.
47.It Bq Er PAM_AUTHTOK_RECOVERY_ERR
48Failed to recover old authentication token.
49.It Bq Er PAM_BUF_ERR
50Memory buffer error.
51.It Bq Er PAM_CONV_ERR
52Conversation failure.
53.It Bq Er PAM_IGNORE
54Ignore this module.
55.It Bq Er PAM_PERM_DENIED
56Permission denied.
57.It Bq Er PAM_SERVICE_ERR
58Error in service module.
59.It Bq Er PAM_SYSTEM_ERR
60System error.
61.It Bq Er PAM_TRY_AGAIN
62Try again.
63.El
64.Sh SEE ALSO
65.Xr pam 3 ,
66.Xr pam_chauthtok 3 ,
67.Xr pam_strerror 3
68.Sh STANDARDS
69.Rs
70.%T "X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules"
71.%D "June 1997"
72.Re
73.Sh AUTHORS
74The
75.Fn pam_sm_chauthtok
76function and this manual page were
77developed for the
78.Fx
79Project by ThinkSec AS and Network Associates Laboratories, the
80Security Research Division of Network Associates, Inc.\& under
81DARPA/SPAWAR contract N66001-01-C-8035
82.Pq Dq CBOSS ,
83as part of the DARPA CHATS research program.
84.Pp
85The OpenPAM library is maintained by
86.An Dag-Erling Sm\(/orgrav Aq des@des.no .
87