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/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2007 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_getenvlist.c 408 2007-12-21 11:36:24Z des $
*/
#include <stdlib.h>
#include <string.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 45
*
* Returns a list of all the PAM environment variables
*/
char **
pam_getenvlist(pam_handle_t *pamh)
{
char **envlist;
int i;
ENTER();
if (pamh == NULL)
RETURNP(NULL);
envlist = malloc(sizeof(char *) * (pamh->env_count + 1));
if (envlist == NULL) {
openpam_log(PAM_LOG_ERROR, "%s",
pam_strerror(pamh, PAM_BUF_ERR));
RETURNP(NULL);
}
for (i = 0; i < pamh->env_count; ++i) {
if ((envlist[i] = strdup(pamh->env[i])) == NULL) {
while (i) {
--i;
FREE(envlist[i]);
}
FREE(envlist);
openpam_log(PAM_LOG_ERROR, "%s",
pam_strerror(pamh, PAM_BUF_ERR));
RETURNP(NULL);
}
}
envlist[i] = NULL;
RETURNP(envlist);
}
/**
* The =pam_getenvlist function returns a copy of the given PAM context's
* environment list as a pointer to an array of strings.
* The last element in the array is =NULL.
* The pointer is suitable for assignment to {Va environ}.
*
* The array and the strings it lists are allocated using =malloc, and
* should be released using =free after use:
*
* char **envlist, **env;
*
* envlist = environ;
* environ = pam_getenvlist(pamh);
* \/\* do something nifty \*\/
* for (env = environ; *env != NULL; env++)
* free(*env);
* free(environ);
* environ = envlist;
*
* >environ 7
* >pam_getenv
* >pam_putenv
* >pam_setenv
*/
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