freebsd-dev/contrib/openpam/lib/pam_chauthtok.c

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/*-
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* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
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* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
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* 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.
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*
* 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.
*
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* $P4: //depot/projects/openpam/lib/pam_chauthtok.c#16 $
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*/
#include <sys/param.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 38
*
* Perform password related functions within the PAM framework
*/
int
pam_chauthtok(pam_handle_t *pamh,
int flags)
{
int r;
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ENTER();
if (flags & ~(PAM_SILENT|PAM_CHANGE_EXPIRED_AUTHTOK))
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RETURNC(PAM_SYMBOL_ERR);
r = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK,
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flags | PAM_PRELIM_CHECK);
if (r == PAM_SUCCESS)
r = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK,
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flags | PAM_UPDATE_AUTHTOK);
pam_set_item(pamh, PAM_OLDAUTHTOK, NULL);
pam_set_item(pamh, PAM_AUTHTOK, NULL);
RETURNC(r);
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}
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/*
* Error codes:
*
* =openpam_dispatch
* =pam_sm_chauthtok
* !PAM_IGNORE
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* PAM_SYMBOL_ERR
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*/
/**
* The =pam_chauthtok function attempts to change the authentication token
* for the user associated with the pam context specified by the =pamh
* argument.
*
* The =flags argument is the binary or of zero or more of the following
* values:
*
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* =PAM_SILENT:
* Do not emit any messages.
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* =PAM_CHANGE_EXPIRED_AUTHTOK:
* Change only those authentication tokens that have expired.
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*
* If any other bits are set, =pam_chauthtok will return =PAM_SYMBOL_ERR.
*/