191094Sdes/*-
2115619Sdes * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3228690Sdes * Copyright (c) 2004-2011 Dag-Erling Sm��rgrav
491094Sdes * All rights reserved.
591094Sdes *
691094Sdes * This software was developed for the FreeBSD Project by ThinkSec AS and
799158Sdes * Network Associates Laboratories, the Security Research Division of
899158Sdes * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
999158Sdes * ("CBOSS"), as part of the DARPA CHATS research program.
1091094Sdes *
1191094Sdes * Redistribution and use in source and binary forms, with or without
1291094Sdes * modification, are permitted provided that the following conditions
1391094Sdes * are met:
1491094Sdes * 1. Redistributions of source code must retain the above copyright
1591094Sdes *    notice, this list of conditions and the following disclaimer.
1691094Sdes * 2. Redistributions in binary form must reproduce the above copyright
1791094Sdes *    notice, this list of conditions and the following disclaimer in the
1891094Sdes *    documentation and/or other materials provided with the distribution.
1991094Sdes * 3. The name of the author may not be used to endorse or promote
2091094Sdes *    products derived from this software without specific prior written
2191094Sdes *    permission.
2291094Sdes *
2391094Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
2491094Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2591094Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2691094Sdes * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2791094Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2891094Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2991094Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
3091094Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
3191094Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
3291094Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3391094Sdes * SUCH DAMAGE.
3491094Sdes *
35263421Sdes * $Id: pam_get_data.c 648 2013-03-05 17:54:27Z des $
3691094Sdes */
3791094Sdes
38228690Sdes#ifdef HAVE_CONFIG_H
39228690Sdes# include "config.h"
40228690Sdes#endif
41228690Sdes
4291094Sdes#include <string.h>
4391094Sdes
4491094Sdes#include <security/pam_appl.h>
4591094Sdes
4691094Sdes#include "openpam_impl.h"
4791094Sdes
4891094Sdes/*
4991094Sdes * XSSO 4.2.1
5091094Sdes * XSSO 6 page 43
5191094Sdes *
5291094Sdes * Get module information
5391094Sdes */
5491094Sdes
5591094Sdesint
56174832Sdespam_get_data(const pam_handle_t *pamh,
5791094Sdes	const char *module_data_name,
58174832Sdes	const void **data)
5991094Sdes{
6091094Sdes	pam_data_t *dp;
6191094Sdes
62110503Sdes	ENTERS(module_data_name);
6391094Sdes	if (pamh == NULL)
64107937Sdes		RETURNC(PAM_SYSTEM_ERR);
65125647Sdes	for (dp = pamh->module_data; dp != NULL; dp = dp->next) {
6691094Sdes		if (strcmp(dp->name, module_data_name) == 0) {
67141098Sdes			*data = (void *)dp->data;
68107937Sdes			RETURNC(PAM_SUCCESS);
6991094Sdes		}
70125647Sdes	}
71107937Sdes	RETURNC(PAM_NO_MODULE_DATA);
7291094Sdes}
7391100Sdes
7491100Sdes/*
7591100Sdes * Error codes:
7691100Sdes *
7791100Sdes *	PAM_SYSTEM_ERR
7891100Sdes *	PAM_NO_MODULE_DATA
7991100Sdes */
8091100Sdes
8191100Sdes/**
8291100Sdes * The =pam_get_data function looks up the opaque object associated with
8391100Sdes * the string specified by the =module_data_name argument, in the PAM
8491100Sdes * context specified by the =pamh argument.
8591100Sdes * A pointer to the object is stored in the location pointed to by the
8691100Sdes * =data argument.
87228690Sdes * If =pam_get_data fails, the =data argument is untouched.
8891100Sdes *
8991100Sdes * This function and its counterpart =pam_set_data are useful for managing
9091100Sdes * data that are meaningful only to a particular service module.
9191100Sdes */
92