1216294Ssyrinx/*- 2216294Ssyrinx * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3216294Ssyrinx * Copyright (c) 2004-2011 Dag-Erling Sm��rgrav 4216294Ssyrinx * All rights reserved. 5216294Ssyrinx * 6216294Ssyrinx * This software was developed for the FreeBSD Project by ThinkSec AS and 7216294Ssyrinx * Network Associates Laboratories, the Security Research Division of 8216294Ssyrinx * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 9216294Ssyrinx * ("CBOSS"), as part of the DARPA CHATS research program. 10216294Ssyrinx * 11216294Ssyrinx * Redistribution and use in source and binary forms, with or without 12216294Ssyrinx * modification, are permitted provided that the following conditions 13216294Ssyrinx * are met: 14216294Ssyrinx * 1. Redistributions of source code must retain the above copyright 15216294Ssyrinx * notice, this list of conditions and the following disclaimer. 16216294Ssyrinx * 2. Redistributions in binary form must reproduce the above copyright 17216294Ssyrinx * notice, this list of conditions and the following disclaimer in the 18216294Ssyrinx * documentation and/or other materials provided with the distribution. 19216294Ssyrinx * 3. The name of the author may not be used to endorse or promote 20216294Ssyrinx * products derived from this software without specific prior written 21216294Ssyrinx * permission. 22216294Ssyrinx * 23216294Ssyrinx * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24216294Ssyrinx * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25216294Ssyrinx * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26216294Ssyrinx * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27216294Ssyrinx * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28216294Ssyrinx * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29216294Ssyrinx * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30216294Ssyrinx * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31216294Ssyrinx * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32216294Ssyrinx * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33216294Ssyrinx * SUCH DAMAGE. 34216294Ssyrinx * 35216294Ssyrinx * $Id: pam_getenvlist.c 648 2013-03-05 17:54:27Z des $ 36237193Sjoel */ 37216294Ssyrinx 38216294Ssyrinx#ifdef HAVE_CONFIG_H 39216294Ssyrinx# include "config.h" 40216294Ssyrinx#endif 41216294Ssyrinx 42216294Ssyrinx#include <stdlib.h> 43216294Ssyrinx#include <string.h> 44216294Ssyrinx 45216294Ssyrinx#include <security/pam_appl.h> 46216294Ssyrinx 47216294Ssyrinx#include "openpam_impl.h" 48216294Ssyrinx 49216294Ssyrinx/* 50216294Ssyrinx * XSSO 4.2.1 51216294Ssyrinx * XSSO 6 page 45 52216294Ssyrinx * 53216294Ssyrinx * Returns a list of all the PAM environment variables 54216294Ssyrinx */ 55216294Ssyrinx 56216294Ssyrinxchar ** 57216294Ssyrinxpam_getenvlist(pam_handle_t *pamh) 58216294Ssyrinx{ 59216294Ssyrinx char **envlist; 60235286Sgjb int i; 61216294Ssyrinx 62216294Ssyrinx ENTER(); 63216294Ssyrinx if (pamh == NULL) 64216294Ssyrinx RETURNP(NULL); 65216294Ssyrinx envlist = malloc(sizeof(char *) * (pamh->env_count + 1)); 66216294Ssyrinx if (envlist == NULL) { 67216294Ssyrinx openpam_log(PAM_LOG_ERROR, "%s", 68216294Ssyrinx pam_strerror(pamh, PAM_BUF_ERR)); 69216294Ssyrinx RETURNP(NULL); 70216294Ssyrinx } 71216294Ssyrinx for (i = 0; i < pamh->env_count; ++i) { 72216294Ssyrinx if ((envlist[i] = strdup(pamh->env[i])) == NULL) { 73216294Ssyrinx while (i) { 74216294Ssyrinx --i; 75216294Ssyrinx FREE(envlist[i]); 76216294Ssyrinx } 77216294Ssyrinx FREE(envlist); 78216294Ssyrinx openpam_log(PAM_LOG_ERROR, "%s", 79216294Ssyrinx pam_strerror(pamh, PAM_BUF_ERR)); 80216294Ssyrinx RETURNP(NULL); 81216294Ssyrinx } 82237194Sjoel } 83216294Ssyrinx envlist[i] = NULL; 84216294Ssyrinx RETURNP(envlist); 85216294Ssyrinx} 86216294Ssyrinx 87216294Ssyrinx/** 88216294Ssyrinx * The =pam_getenvlist function returns a copy of the given PAM context's 89216294Ssyrinx * environment list as a pointer to an array of strings. 90216294Ssyrinx * The last element in the array is =NULL. 91216294Ssyrinx * The pointer is suitable for assignment to {Va environ}. 92216294Ssyrinx * 93216294Ssyrinx * The array and the strings it lists are allocated using =malloc, and 94237194Sjoel * should be released using =free after use: 95216294Ssyrinx * 96216294Ssyrinx * char **envlist, **env; 97216294Ssyrinx * 98216294Ssyrinx * envlist = environ; 99216294Ssyrinx * environ = pam_getenvlist(pamh); 100216294Ssyrinx * \/\* do something nifty \*\/ 101216294Ssyrinx * for (env = environ; *env != NULL; env++) 102216294Ssyrinx * free(*env); 103216294Ssyrinx * free(environ); 104216294Ssyrinx * environ = envlist; 105235286Sgjb * 106216294Ssyrinx * >environ 7 107216294Ssyrinx * >pam_getenv 108216294Ssyrinx * >pam_putenv 109216294Ssyrinx * >pam_setenv 110216294Ssyrinx */ 111216294Ssyrinx