1 /* $NetBSD: pam_get_data.c,v 1.4 2023/06/30 21:46:21 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 5 * Copyright (c) 2004-2017 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 38 #ifdef HAVE_CONFIG_H 39 # include "config.h" 40 #endif 41 42 #include <sys/cdefs.h> 43 __RCSID("$NetBSD: pam_get_data.c,v 1.4 2023/06/30 21:46:21 christos Exp $"); 44 45 #include <string.h> 46 47 #include <security/pam_appl.h> 48 49 #include "openpam_impl.h" 50 51 /* 52 * XSSO 4.2.1 53 * XSSO 6 page 43 54 * 55 * Get module information 56 */ 57 58 int 59 pam_get_data(const pam_handle_t *pamh, 60 const char *module_data_name, 61 const void **data) 62 { 63 pam_data_t *dp; 64 65 ENTERS(module_data_name); 66 for (dp = pamh->module_data; dp != NULL; dp = dp->next) { 67 if (strcmp(dp->name, module_data_name) == 0) { 68 *data = (void *)dp->data; 69 RETURNC(PAM_SUCCESS); 70 } 71 } 72 RETURNC(PAM_NO_MODULE_DATA); 73 } 74 75 /* 76 * Error codes: 77 * 78 * PAM_NO_MODULE_DATA 79 */ 80 81 /** 82 * The =pam_get_data function looks up the opaque object associated with 83 * the string specified by the =module_data_name argument, in the PAM 84 * context specified by the =pamh argument. 85 * A pointer to the object is stored in the location pointed to by the 86 * =data argument. 87 * If =pam_get_data fails, the =data argument is untouched. 88 * 89 * This function and its counterpart =pam_set_data are useful for managing 90 * data that are meaningful only to a particular service module. 91 */ 92