pam_set_item.c revision 99158
1/*- 2 * Copyright (c) 2002 Networks Associates Technology, Inc. 3 * All rights reserved. 4 * 5 * This software was developed for the FreeBSD Project by ThinkSec AS and 6 * Network Associates Laboratories, the Security Research Division of 7 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 8 * ("CBOSS"), as part of the DARPA CHATS research program. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $P4: //depot/projects/openpam/lib/pam_set_item.c#15 $ 35 */ 36 37#include <sys/param.h> 38 39#include <stdlib.h> 40#include <string.h> 41 42#include <security/pam_appl.h> 43 44#include "openpam_impl.h" 45 46/* 47 * XSSO 4.2.1 48 * XSSO 6 page 60 49 * 50 * Set authentication information 51 */ 52 53int 54pam_set_item(pam_handle_t *pamh, 55 int item_type, 56 const void *item) 57{ 58 void **slot, *tmp; 59 size_t nsize, osize; 60 61 if (pamh == NULL) 62 return (PAM_SYSTEM_ERR); 63 64 slot = &pamh->item[item_type]; 65 switch (item_type) { 66 case PAM_SERVICE: 67 case PAM_USER: 68 case PAM_AUTHTOK: 69 case PAM_OLDAUTHTOK: 70 case PAM_TTY: 71 case PAM_RHOST: 72 case PAM_RUSER: 73 case PAM_USER_PROMPT: 74 case PAM_AUTHTOK_PROMPT: 75 case PAM_OLDAUTHTOK_PROMPT: 76 if (item != NULL) 77 nsize = strlen(item) + 1; 78 if (*slot != NULL) 79 osize = strlen(*slot) + 1; 80 break; 81 case PAM_REPOSITORY: 82 osize = nsize = sizeof(struct pam_repository); 83 break; 84 case PAM_CONV: 85 osize = nsize = sizeof(struct pam_conv); 86 break; 87 default: 88 return (PAM_SYMBOL_ERR); 89 } 90 if (*slot != NULL) { 91 memset(*slot, 0xd0, osize); 92 free(*slot); 93 } 94 if (item != NULL) { 95 if ((tmp = malloc(nsize)) == NULL) 96 return (PAM_BUF_ERR); 97 memcpy(tmp, item, nsize); 98 } else { 99 tmp = NULL; 100 } 101 *slot = tmp; 102 return (PAM_SUCCESS); 103} 104 105/* 106 * Error codes: 107 * 108 * PAM_SYMBOL_ERR 109 * PAM_SYSTEM_ERR 110 * PAM_BUF_ERR 111 */ 112 113/** 114 * The =pam_set_item function sets the item specified by the =item_type 115 * argument to a copy of the object pointed to by the =item argument. 116 * The item is stored in the PAM context specified by the =pamh argument. 117 * See =pam_get_item for a list of recognized item types. 118 */ 119