pam_end.c revision 92289
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 * NAI Labs, the Security Research Division of Network Associates, Inc. 7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 8 * 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#8 $ 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 if (pamh == NULL) 58 return (PAM_SYSTEM_ERR); 59 60 /* clear module data */ 61 while ((dp = pamh->module_data) != NULL) { 62 if (dp->cleanup) 63 (dp->cleanup)(pamh, dp->data, status); 64 pamh->module_data = dp->next; 65 free(dp->name); 66 free(dp); 67 } 68 69 /* clear environment */ 70 while (pamh->env_count) 71 free(pamh->env[--pamh->env_count]); 72 free(pamh->env); 73 74 /* clear chains */ 75 openpam_clear_chains(pamh); 76 77 /* clear items */ 78 for (i = 0; i < PAM_NUM_ITEMS; ++i) 79 pam_set_item(pamh, i, NULL); 80 81 free(pamh); 82 83 return (PAM_SUCCESS); 84} 85 86/* 87 * Error codes: 88 * 89 * PAM_SYSTEM_ERR 90 */ 91 92/** 93 * The =pam_end function terminates a PAM transaction and destroys the 94 * corresponding PAM context, releasing all resources allocated to it. 95 * 96 * The =status argument should be set to the error code returned by the 97 * last API call before the call to =pam_end. 98 */ 99