191094Sdes/*- 2115619Sdes * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3348980Sdes * Copyright (c) 2004-2019 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_getenv.c 944 2019-02-22 09:49:12Z des $ 3691094Sdes */ 3791094Sdes 38228690Sdes#ifdef HAVE_CONFIG_H 39228690Sdes# include "config.h" 40228690Sdes#endif 41228690Sdes 42348980Sdes#include <errno.h> 4391094Sdes#include <stdlib.h> 4491094Sdes#include <string.h> 4591094Sdes 4691094Sdes#include <security/pam_appl.h> 4791094Sdes 4891094Sdes#include "openpam_impl.h" 4991094Sdes 5091094Sdes/* 5191094Sdes * XSSO 4.2.1 5291094Sdes * XSSO 6 page 44 5391094Sdes * 5491094Sdes * Retrieve the value of a PAM environment variable 5591094Sdes */ 5691094Sdes 57114536Sdesconst char * 5891094Sdespam_getenv(pam_handle_t *pamh, 5991094Sdes const char *name) 6091094Sdes{ 61348980Sdes size_t len; 6291094Sdes int i; 6391094Sdes 64110558Sdes ENTERS(name); 65348980Sdes for (len = 0; name[len] != '\0'; ++len) { 66348980Sdes if (name[len] == '=') { 67348980Sdes errno = EINVAL; 68348980Sdes RETURNS(NULL); 69110558Sdes } 70110558Sdes } 71348980Sdes if ((i = openpam_findenv(pamh, name, len)) < 0) 72348980Sdes RETURNS(NULL); 73348980Sdes /* assert(pamh->env[i][len] == '='); */ 74348980Sdes RETURNS(pamh->env[i] + len + 1); 7591094Sdes} 7691100Sdes 7791100Sdes/** 7891100Sdes * The =pam_getenv function returns the value of an environment variable. 7991100Sdes * Its semantics are similar to those of =getenv, but it accesses the PAM 8091100Sdes * context's environment list instead of the application's. 8191100Sdes * 8291100Sdes * >pam_getenvlist 8391100Sdes * >pam_putenv 8491100Sdes * >pam_setenv 8591100Sdes */ 86