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/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2011 Dag-Erling Smørgrav
* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
* Network Associates Laboratories, the Security Research Division of
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: pam_putenv.c 648 2013-03-05 17:54:27Z des $
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 56
*
* Set the value of an environment variable
*/
int
pam_putenv(pam_handle_t *pamh,
const char *namevalue)
{
char **env, *p;
int i;
ENTER();
if (pamh == NULL)
RETURNC(PAM_SYSTEM_ERR);
/* sanity checks */
if (namevalue == NULL || (p = strchr(namevalue, '=')) == NULL)
RETURNC(PAM_SYSTEM_ERR);
/* see if the variable is already in the environment */
if ((i = openpam_findenv(pamh, namevalue, p - namevalue)) >= 0) {
if ((p = strdup(namevalue)) == NULL)
RETURNC(PAM_BUF_ERR);
FREE(pamh->env[i]);
pamh->env[i] = p;
RETURNC(PAM_SUCCESS);
}
/* grow the environment list if necessary */
if (pamh->env_count == pamh->env_size) {
env = realloc(pamh->env,
sizeof(char *) * (pamh->env_size * 2 + 1));
if (env == NULL)
RETURNC(PAM_BUF_ERR);
pamh->env = env;
pamh->env_size = pamh->env_size * 2 + 1;
}
/* add the variable at the end */
if ((pamh->env[pamh->env_count] = strdup(namevalue)) == NULL)
RETURNC(PAM_BUF_ERR);
++pamh->env_count;
RETURNC(PAM_SUCCESS);
}
/*
* Error codes:
*
* PAM_SYSTEM_ERR
* PAM_BUF_ERR
*/
/**
* The =pam_putenv function sets an environment variable.
* Its semantics are similar to those of =putenv, but it modifies the PAM
* context's environment list instead of the application's.
*
* >pam_getenv
* >pam_getenvlist
* >pam_setenv
*/
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