freebsd-dev/contrib/openpam/lib/libpam/pam_set_item.c
2013-09-07 19:43:39 +00:00

130 lines
3.6 KiB
C

/*-
* 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.
*
* $Id: pam_set_item.c 648 2013-03-05 17:54:27Z des $
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#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;
size_t nsize, osize;
ENTERI(item_type);
if (pamh == NULL)
RETURNC(PAM_SYSTEM_ERR);
slot = &pamh->item[item_type];
osize = nsize = 0;
switch (item_type) {
case PAM_SERVICE:
/* set once only, by pam_start() */
if (*slot != NULL)
RETURNC(PAM_SYSTEM_ERR);
/* fall through */
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:
case PAM_HOST:
if (*slot != NULL)
osize = strlen(*slot) + 1;
if (item != NULL)
nsize = strlen(item) + 1;
break;
case PAM_REPOSITORY:
osize = nsize = sizeof(struct pam_repository);
break;
case PAM_CONV:
osize = nsize = sizeof(struct pam_conv);
break;
default:
RETURNC(PAM_SYMBOL_ERR);
}
if (*slot != NULL) {
memset(*slot, 0xd0, osize);
FREE(*slot);
}
if (item != NULL) {
if ((tmp = malloc(nsize)) == NULL)
RETURNC(PAM_BUF_ERR);
memcpy(tmp, item, nsize);
} else {
tmp = NULL;
}
*slot = tmp;
RETURNC(PAM_SUCCESS);
}
/*
* 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.
*/