Differential D28528 Diff 83518 contrib/openpam/lib/libpam/pam_getenv.c

Changeset View

Standalone View

contrib/openpam/lib/libpam/pam_getenv.c

	/*-			/*-
	* Copyright (c) 2002-2003 Networks Associates Technology, Inc.			* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
	* Copyright (c) 2004-2017 Dag-Erling Smørgrav			* Copyright (c) 2004-2019 Dag-Erling Smørgrav
	* All rights reserved.			* All rights reserved.
	*			*
	* This software was developed for the FreeBSD Project by ThinkSec AS and			* This software was developed for the FreeBSD Project by ThinkSec AS and
	* Network Associates Laboratories, the Security Research Division of			* Network Associates Laboratories, the Security Research Division of
	* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035			* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
	* ("CBOSS"), as part of the DARPA CHATS research program.			* ("CBOSS"), as part of the DARPA CHATS research program.
	*			*
	* Redistribution and use in source and binary forms, with or without			* Redistribution and use in source and binary forms, with or without
	Show All 15 Lines
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			* 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			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.			* SUCH DAMAGE.
	*			*
	* $OpenPAM: pam_getenv.c 938 2017-04-30 21:34:42Z des $			* $OpenPAM: pam_getenv.c 944 2019-02-22 09:49:12Z des $
	*/			*/

	#ifdef HAVE_CONFIG_H			#ifdef HAVE_CONFIG_H
	# include "config.h"			# include "config.h"
	#endif			#endif

	#include <errno.h>			#include <errno.h>
	#include <stdlib.h>			#include <stdlib.h>
	Show All 9 Lines
	*			*
	* Retrieve the value of a PAM environment variable			* Retrieve the value of a PAM environment variable
	*/			*/

	const char *			const char *
	pam_getenv(pam_handle_t *pamh,			pam_getenv(pam_handle_t *pamh,
	const char *name)			const char *name)
	{			{
	char *str;			size_t len;
	int i;			int i;

	ENTERS(name);			ENTERS(name);
	if (strchr(name, '=') != NULL) {			for (len = 0; name[len] != '\0'; ++len) {
				if (name[len] == '=') {
	errno = EINVAL;			errno = EINVAL;
	RETURNS(NULL);			RETURNS(NULL);
	}			}
	if ((i = openpam_findenv(pamh, name, strlen(name))) < 0)			}
				if ((i = openpam_findenv(pamh, name, len)) < 0)
	RETURNS(NULL);			RETURNS(NULL);
	if ((str = strchr(pamh->env[i], '=')) == NULL)			/* assert(pamh->env[i][len] == '='); */
	RETURNS("");			RETURNS(pamh->env[i] + len + 1);
	RETURNS(str);
	}			}

	/**			/**
	* The =pam_getenv function returns the value of an environment variable.			* The =pam_getenv function returns the value of an environment variable.
	* Its semantics are similar to those of =getenv, but it accesses the PAM			* Its semantics are similar to those of =getenv, but it accesses the PAM
	* context's environment list instead of the application's.			* context's environment list instead of the application's.
	*			*
	* >pam_getenvlist			* >pam_getenvlist
	* >pam_putenv			* >pam_putenv
	* >pam_setenv			* >pam_setenv
	*/			*/