openpam_nullconv(3) - NetBSD Manual Pages

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OPENPAM_NULLCONV(3)     NetBSD Library Functions Manual    OPENPAM_NULLCONV(3)

openpam_nullconv -- null conversation function
#include <sys/types.h> #include <security/pam_appl.h> #include <security/openpam.h> int openpam_nullconv(int n, const struct pam_message **msg, struct pam_response **resp, void *data);
The openpam_nullconv() function is a null conversation function suitable for applications that want to use PAM but don't support interactive dia- log with the user. Such applications should set PAM_AUTHTOK to whatever authentication token they've obtained on their own before calling pam_authenticate(3) and / or pam_chauthtok(3), and their PAM configura- tion should specify the use_first_pass option for all modules that require access to the authentication token, to make sure they use PAM_AUTHTOK rather than try to query the user.
The openpam_nullconv() function returns one of the following values: [PAM_SUCCESS] Success. [PAM_CONV_ERR] Conversation failure.
openpam_ttyconv(3), pam(3), pam_authenticate(3), pam_chauthtok(3), pam_prompt(3), pam_set_item(3), pam_strerror(3), pam_vprompt(3)
The openpam_nullconv() function is an OpenPAM extension.
The openpam_nullconv() 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. The OpenPAM library is maintained by Dag-Erling Smørgrav <>. NetBSD 9.0 April 30, 2017 NetBSD 9.0
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