1 /*- 2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3 * Copyright (c) 2004-2017 Dag-Erling Smørgrav 4 * All rights reserved. 5 * 6 * This software was developed for the FreeBSD Project by ThinkSec AS and 7 * Network Associates Laboratories, the Security Research Division of 8 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 9 * ("CBOSS"), as part of the DARPA CHATS research program. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote 20 * products derived from this software without specific prior written 21 * permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $OpenPAM: pam_end.c 938 2017-04-30 21:34:42Z des $ 36 */ 37 38 #ifdef HAVE_CONFIG_H 39 # include "config.h" 40 #endif 41 42 #include <stdlib.h> 43 44 #include <security/pam_appl.h> 45 46 #include "openpam_impl.h" 47 48 /* 49 * XSSO 4.2.1 50 * XSSO 6 page 42 51 * 52 * Terminate the PAM transaction 53 */ 54 55 int 56 pam_end(pam_handle_t *pamh, 57 int status) 58 { 59 pam_data_t *dp; 60 int i; 61 62 ENTER(); 63 if (pamh == NULL) 64 RETURNC(PAM_BAD_HANDLE); 65 66 /* clear module data */ 67 while ((dp = pamh->module_data) != NULL) { 68 if (dp->cleanup) 69 (dp->cleanup)(pamh, dp->data, status); 70 pamh->module_data = dp->next; 71 FREE(dp->name); 72 FREE(dp); 73 } 74 75 /* clear environment */ 76 while (pamh->env_count) { 77 --pamh->env_count; 78 FREE(pamh->env[pamh->env_count]); 79 } 80 FREE(pamh->env); 81 82 /* clear chains */ 83 openpam_clear_chains(pamh->chains); 84 85 /* clear items */ 86 for (i = 0; i < PAM_NUM_ITEMS; ++i) 87 pam_set_item(pamh, i, NULL); 88 89 FREE(pamh); 90 91 RETURNC(PAM_SUCCESS); 92 } 93 94 /* 95 * Error codes: 96 * 97 * PAM_BAD_HANDLE 98 */ 99 100 /** 101 * The =pam_end function terminates a PAM transaction and destroys the 102 * corresponding PAM context, releasing all resources allocated to it. 103 * 104 * The =status argument should be set to the error code returned by the 105 * last API call before the call to =pam_end. 106 */ 107