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/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2019 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.
*
* $OpenPAM: pam_getenv.c 944 2019-02-22 09:49:12Z des $
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 44
*
* Retrieve the value of a PAM environment variable
*/
const char *
pam_getenv(pam_handle_t *pamh,
const char *name)
{
size_t len;
int i;
ENTERS(name);
for (len = 0; name[len] != '\0'; ++len) {
if (name[len] == '=') {
errno = EINVAL;
RETURNS(NULL);
}
}
if ((i = openpam_findenv(pamh, name, len)) < 0)
RETURNS(NULL);
/* assert(pamh->env[i][len] == '='); */
RETURNS(pamh->env[i] + len + 1);
}
/**
* The =pam_getenv function returns the value of an environment variable.
* Its semantics are similar to those of =getenv, but it accesses the PAM
* context's environment list instead of the application's.
*
* >pam_getenvlist
* >pam_putenv
* >pam_setenv
*/
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