1 /* $NetBSD: pam_get_data.c,v 1.2 2014/10/24 18:17:56 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 5 * Copyright (c) 2004-2011 Dag-Erling Smørgrav 6 * All rights reserved. 7 * 8 * This software was developed for the FreeBSD Project by ThinkSec AS and 9 * Network Associates Laboratories, the Security Research Division of 10 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 11 * ("CBOSS"), as part of the DARPA CHATS research program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote 22 * products derived from this software without specific prior written 23 * permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * Id: pam_get_data.c 648 2013-03-05 17:54:27Z des 38 */ 39 40 #ifdef HAVE_CONFIG_H 41 # include "config.h" 42 #endif 43 44 #include <sys/cdefs.h> 45 __RCSID("$NetBSD: pam_get_data.c,v 1.2 2014/10/24 18:17:56 christos Exp $"); 46 47 #include <string.h> 48 49 #include <security/pam_appl.h> 50 51 #include "openpam_impl.h" 52 53 /* 54 * XSSO 4.2.1 55 * XSSO 6 page 43 56 * 57 * Get module information 58 */ 59 60 int 61 pam_get_data(const pam_handle_t *pamh, 62 const char *module_data_name, 63 const void **data) 64 { 65 pam_data_t *dp; 66 67 ENTERS(module_data_name); 68 if (pamh == NULL) 69 RETURNC(PAM_SYSTEM_ERR); 70 for (dp = pamh->module_data; dp != NULL; dp = dp->next) { 71 if (strcmp(dp->name, module_data_name) == 0) { 72 *data = (void *)dp->data; 73 RETURNC(PAM_SUCCESS); 74 } 75 } 76 RETURNC(PAM_NO_MODULE_DATA); 77 } 78 79 /* 80 * Error codes: 81 * 82 * PAM_SYSTEM_ERR 83 * PAM_NO_MODULE_DATA 84 */ 85 86 /** 87 * The =pam_get_data function looks up the opaque object associated with 88 * the string specified by the =module_data_name argument, in the PAM 89 * context specified by the =pamh argument. 90 * A pointer to the object is stored in the location pointed to by the 91 * =data argument. 92 * If =pam_get_data fails, the =data argument is untouched. 93 * 94 * This function and its counterpart =pam_set_data are useful for managing 95 * data that are meaningful only to a particular service module. 96 */ 97