pam_end.c revision 116520
1/*- 2 * Copyright (c) 2002-2003 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_end.c#14 $ 35 */ 36 37#include <stdlib.h> 38 39#include <security/pam_appl.h> 40 41#include "openpam_impl.h" 42 43/* 44 * XSSO 4.2.1 45 * XSSO 6 page 42 46 * 47 * Terminate the PAM transaction 48 */ 49 50int 51pam_end(pam_handle_t *pamh, 52 int status) 53{ 54 pam_data_t *dp; 55 int i; 56 57 ENTER(); 58 if (pamh == NULL) 59 RETURNC(PAM_SYSTEM_ERR); 60 61 /* clear module data */ 62 while ((dp = pamh->module_data) != NULL) { 63 if (dp->cleanup) 64 (dp->cleanup)(pamh, dp->data, status); 65 pamh->module_data = dp->next; 66 FREE(dp->name); 67 FREE(dp); 68 } 69 70 /* clear environment */ 71 while (pamh->env_count) { 72 --pamh->env_count; 73 FREE(pamh->env[pamh->env_count]); 74 } 75 FREE(pamh->env); 76 77 /* clear chains */ 78 openpam_clear_chains(pamh->chains); 79 80 /* clear items */ 81 for (i = 0; i < PAM_NUM_ITEMS; ++i) 82 pam_set_item(pamh, i, NULL); 83 84 FREE(pamh); 85 86 RETURNC(PAM_SUCCESS); 87} 88 89/* 90 * Error codes: 91 * 92 * PAM_SYSTEM_ERR 93 */ 94 95/** 96 * The =pam_end function terminates a PAM transaction and destroys the 97 * corresponding PAM context, releasing all resources allocated to it. 98 * 99 * The =status argument should be set to the error code returned by the 100 * last API call before the call to =pam_end. 101 */ 102