freebsd-nq/contrib/openpam/lib/pam_set_item.c

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/*-
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* Copyright (c) 2002 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_set_item.c#16 $
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*/
#include <sys/param.h>
#include <stdlib.h>
#include <string.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 60
*
* Set authentication information
*/
int
pam_set_item(pam_handle_t *pamh,
int item_type,
const void *item)
{
void **slot, *tmp;
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size_t nsize, osize;
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ENTER();
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if (pamh == NULL)
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RETURNC(PAM_SYSTEM_ERR);
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slot = &pamh->item[item_type];
switch (item_type) {
case PAM_SERVICE:
case PAM_USER:
case PAM_AUTHTOK:
case PAM_OLDAUTHTOK:
case PAM_TTY:
case PAM_RHOST:
case PAM_RUSER:
case PAM_USER_PROMPT:
case PAM_AUTHTOK_PROMPT:
case PAM_OLDAUTHTOK_PROMPT:
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if (item != NULL)
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nsize = strlen(item) + 1;
if (*slot != NULL)
osize = strlen(*slot) + 1;
break;
case PAM_REPOSITORY:
osize = nsize = sizeof(struct pam_repository);
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break;
case PAM_CONV:
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osize = nsize = sizeof(struct pam_conv);
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break;
default:
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RETURNC(PAM_SYMBOL_ERR);
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}
if (*slot != NULL) {
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memset(*slot, 0xd0, osize);
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free(*slot);
}
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if (item != NULL) {
if ((tmp = malloc(nsize)) == NULL)
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RETURNC(PAM_BUF_ERR);
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memcpy(tmp, item, nsize);
} else {
tmp = NULL;
}
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*slot = tmp;
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RETURNC(PAM_SUCCESS);
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}
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/*
* Error codes:
*
* PAM_SYMBOL_ERR
* PAM_SYSTEM_ERR
* PAM_BUF_ERR
*/
/**
* The =pam_set_item function sets the item specified by the =item_type
* argument to a copy of the object pointed to by the =item argument.
* The item is stored in the PAM context specified by the =pamh argument.
* See =pam_get_item for a list of recognized item types.
*/