191094Sdes/*- 2115619Sdes * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3348980Sdes * Copyright (c) 2004-2017 Dag-Erling Sm��rgrav 491094Sdes * All rights reserved. 591094Sdes * 691094Sdes * This software was developed for the FreeBSD Project by ThinkSec AS and 799158Sdes * Network Associates Laboratories, the Security Research Division of 899158Sdes * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 999158Sdes * ("CBOSS"), as part of the DARPA CHATS research program. 1091094Sdes * 1191094Sdes * Redistribution and use in source and binary forms, with or without 1291094Sdes * modification, are permitted provided that the following conditions 1391094Sdes * are met: 1491094Sdes * 1. Redistributions of source code must retain the above copyright 1591094Sdes * notice, this list of conditions and the following disclaimer. 1691094Sdes * 2. Redistributions in binary form must reproduce the above copyright 1791094Sdes * notice, this list of conditions and the following disclaimer in the 1891094Sdes * documentation and/or other materials provided with the distribution. 1991094Sdes * 3. The name of the author may not be used to endorse or promote 2091094Sdes * products derived from this software without specific prior written 2191094Sdes * permission. 2291094Sdes * 2391094Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 2491094Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2591094Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2691094Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2791094Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2891094Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2991094Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3091094Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3191094Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3291094Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3391094Sdes * SUCH DAMAGE. 3491094Sdes * 35348980Sdes * $OpenPAM: pam_getenvlist.c 938 2017-04-30 21:34:42Z des $ 3691094Sdes */ 3791094Sdes 38228690Sdes#ifdef HAVE_CONFIG_H 39228690Sdes# include "config.h" 40228690Sdes#endif 41228690Sdes 4291094Sdes#include <stdlib.h> 4391094Sdes#include <string.h> 4491094Sdes 4591094Sdes#include <security/pam_appl.h> 4691094Sdes 4791094Sdes#include "openpam_impl.h" 4891100Sdes 4991094Sdes/* 5091094Sdes * XSSO 4.2.1 5191094Sdes * XSSO 6 page 45 5291094Sdes * 5391094Sdes * Returns a list of all the PAM environment variables 5491094Sdes */ 5591094Sdes 5691094Sdeschar ** 5791094Sdespam_getenvlist(pam_handle_t *pamh) 5891094Sdes{ 5991094Sdes char **envlist; 6091094Sdes int i; 6191094Sdes 62107937Sdes ENTER(); 6391100Sdes envlist = malloc(sizeof(char *) * (pamh->env_count + 1)); 6491100Sdes if (envlist == NULL) { 6591100Sdes openpam_log(PAM_LOG_ERROR, "%s", 66348980Sdes pam_err_text[PAM_BUF_ERR]); 67107937Sdes RETURNP(NULL); 6891100Sdes } 6991094Sdes for (i = 0; i < pamh->env_count; ++i) { 7091094Sdes if ((envlist[i] = strdup(pamh->env[i])) == NULL) { 71116520Sdes while (i) { 72116520Sdes --i; 73116520Sdes FREE(envlist[i]); 74116520Sdes } 75115619Sdes FREE(envlist); 7691100Sdes openpam_log(PAM_LOG_ERROR, "%s", 77348980Sdes pam_err_text[PAM_BUF_ERR]); 78107937Sdes RETURNP(NULL); 7991094Sdes } 8091094Sdes } 8191100Sdes envlist[i] = NULL; 82107937Sdes RETURNP(envlist); 8391094Sdes} 8491100Sdes 8591100Sdes/** 8691100Sdes * The =pam_getenvlist function returns a copy of the given PAM context's 8791100Sdes * environment list as a pointer to an array of strings. 8891100Sdes * The last element in the array is =NULL. 8991100Sdes * The pointer is suitable for assignment to {Va environ}. 9091100Sdes * 9191100Sdes * The array and the strings it lists are allocated using =malloc, and 9291100Sdes * should be released using =free after use: 9391100Sdes * 9491100Sdes * char **envlist, **env; 9599158Sdes * 9691100Sdes * envlist = environ; 9791100Sdes * environ = pam_getenvlist(pamh); 9891100Sdes * \/\* do something nifty \*\/ 9991100Sdes * for (env = environ; *env != NULL; env++) 10091100Sdes * free(*env); 10191100Sdes * free(environ); 10291100Sdes * environ = envlist; 10391100Sdes * 10491100Sdes * >environ 7 10591100Sdes * >pam_getenv 10691100Sdes * >pam_putenv 10791100Sdes * >pam_setenv 10891100Sdes */ 109