NetBSD/external/bsd/openpam/dist/lib/libpam/openpam_nullconv.c

98 lines
3.1 KiB
C

/* $NetBSD: openpam_nullconv.c,v 1.4 2023/06/30 21:46:20 christos Exp $ */
/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2011 Dag-Erling Smørgrav
* All rights reserved.
*
* This software was 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.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sys/cdefs.h>
__RCSID("$NetBSD: openpam_nullconv.c,v 1.4 2023/06/30 21:46:20 christos Exp $");
#include <sys/types.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* OpenPAM extension
*
* Null conversation function
*/
int
openpam_nullconv(int n,
const struct pam_message **msg,
struct pam_response **resp,
void *data)
{
ENTER();
/*LINTED unused*/
(void)n;
/*LINTED unused*/
(void)msg;
/*LINTED unused*/
(void)resp;
/*LINTED unused*/
(void)data;
RETURNC(PAM_CONV_ERR);
}
/*
* Error codes:
*
* PAM_CONV_ERR
*/
/**
* The =openpam_nullconv function is a null conversation function suitable
* for applications that want to use PAM but don't support interactive
* dialog with the user.
* Such applications should set =PAM_AUTHTOK to whatever authentication
* token they've obtained on their own before calling =pam_authenticate
* and / or =pam_chauthtok, and their PAM configuration 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.
*
* >openpam_ttyconv
* >pam_prompt
* >pam_set_item
* >pam_vprompt
*/