1.\" Generated from openpam_nullconv.c by gendoc.pl 2.\" $Id: openpam_nullconv.c 648 2013-03-05 17:54:27Z des $ 3.Dd September 12, 2014 4.Dt OPENPAM_NULLCONV 3 5.Os 6.Sh NAME 7.Nm openpam_nullconv 8.Nd null conversation function 9.Sh LIBRARY 10.Lb libpam 11.Sh SYNOPSIS 12.In sys/types.h 13.In security/pam_appl.h 14.In security/openpam.h 15.Ft "int" 16.Fn openpam_nullconv "int n" "const struct pam_message **msg" "struct pam_response **resp" "void *data" 17.Sh DESCRIPTION 18The 19.Fn openpam_nullconv 20function is a null conversation function suitable 21for applications that want to use PAM but don't support interactive 22dialog with the user. 23Such applications should set 24.Dv PAM_AUTHTOK 25to whatever authentication 26token they've obtained on their own before calling 27.Xr pam_authenticate 3 28and / or 29.Xr pam_chauthtok 3 , 30and their PAM configuration should specify the 31.Dv use_first_pass 32option for all modules that require access to the 33authentication token, to make sure they use 34.Dv PAM_AUTHTOK 35rather than 36try to query the user. 37.Pp 38.Sh RETURN VALUES 39The 40.Fn openpam_nullconv 41function returns one of the following values: 42.Bl -tag -width 18n 43.It Bq Er PAM_CONV_ERR 44Conversation failure. 45.El 46.Sh SEE ALSO 47.Xr openpam_ttyconv 3 , 48.Xr pam 3 , 49.Xr pam_authenticate 3 , 50.Xr pam_chauthtok 3 , 51.Xr pam_prompt 3 , 52.Xr pam_set_item 3 , 53.Xr pam_strerror 3 , 54.Xr pam_vprompt 3 55.Sh STANDARDS 56The 57.Fn openpam_nullconv 58function is an OpenPAM extension. 59.Sh AUTHORS 60The 61.Fn openpam_nullconv 62function and this manual page were 63developed for the 64.Fx 65Project by ThinkSec AS and Network Associates Laboratories, the 66Security Research Division of Network Associates, Inc.\& under 67DARPA/SPAWAR contract N66001-01-C-8035 68.Pq Dq CBOSS , 69as part of the DARPA CHATS research program. 70.Pp 71The OpenPAM library is maintained by 72.An Dag-Erling Sm\(/orgrav Aq des@des.no . 73