191094Sdes/*- 2115619Sdes * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3228690Sdes * Copyright (c) 2004-2011 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 * 35255376Sdes * $Id: pam_setenv.c 648 2013-03-05 17:54:27Z des $ 3691094Sdes */ 3791094Sdes 38228690Sdes#ifdef HAVE_CONFIG_H 39228690Sdes# include "config.h" 40228690Sdes#endif 41228690Sdes 4291094Sdes#include <stdlib.h> 4391094Sdes#include <stdio.h> 4491094Sdes#include <string.h> 4591094Sdes 4691094Sdes#include <security/pam_appl.h> 4791094Sdes 4891094Sdes#include "openpam_impl.h" 49255376Sdes#include "openpam_asprintf.h" 5091094Sdes 5191094Sdes/* 5291094Sdes * OpenPAM extension 5391094Sdes * 5491094Sdes * Set the value of an environment variable 5591094Sdes * Mirrors setenv(3) 5691094Sdes */ 5791094Sdes 5891094Sdesint 5991094Sdespam_setenv(pam_handle_t *pamh, 6091094Sdes const char *name, 6191094Sdes const char *value, 6291094Sdes int overwrite) 6391094Sdes{ 6491094Sdes char *env; 6591094Sdes int r; 6691094Sdes 67107937Sdes ENTER(); 6891094Sdes if (pamh == NULL) 69107937Sdes RETURNC(PAM_SYSTEM_ERR); 7091094Sdes 7191094Sdes /* sanity checks */ 7291094Sdes if (name == NULL || value == NULL || strchr(name, '=') != NULL) 73107937Sdes RETURNC(PAM_SYSTEM_ERR); 7491094Sdes 7591094Sdes /* is it already there? */ 76115619Sdes if (!overwrite && openpam_findenv(pamh, name, strlen(name)) >= 0) 77107937Sdes RETURNC(PAM_SUCCESS); 7891094Sdes 7991094Sdes /* set it... */ 80115619Sdes if (asprintf(&env, "%s=%s", name, value) < 0) 81107937Sdes RETURNC(PAM_BUF_ERR); 8291094Sdes r = pam_putenv(pamh, env); 83115619Sdes FREE(env); 84107937Sdes RETURNC(r); 8591094Sdes} 8691100Sdes 8791100Sdes/* 8891100Sdes * Error codes: 8991100Sdes * 9091100Sdes * =pam_putenv 9191100Sdes * PAM_SYSTEM_ERR 9291100Sdes * PAM_BUF_ERR 9391100Sdes */ 9491100Sdes 9591100Sdes/** 96236099Sdes * The =pam_setenv function sets an environment variable. 9791100Sdes * Its semantics are similar to those of =setenv, but it modifies the PAM 9891100Sdes * context's environment list instead of the application's. 9991100Sdes * 10091100Sdes * >pam_getenv 10191100Sdes * >pam_getenvlist 10291100Sdes * >pam_putenv 10391100Sdes */ 104