/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Use is subject to license terms.

 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*

 * mkdtemp(3C) - create a directory with a unique name.

 */

#include <alloca.h>

#include <errno.h>

#include <stdlib.h>

#include <string.h>

#include <sys/stat.h>

char *

mkdtemp(char *template)

{

	char *t = alloca(strlen(template) + 1);

	char *r;

	/* Save template */

	(void) strcpy(t, template);

		r = mktemp(template);

		if (*r == '\0')

			return (NULL);

		if (mkdir(template, 0700) == 0)

			return (r);

		/* Other errors indicate persistent conditions. */

		if (errno != EEXIST)

			return (NULL);

		/* Reset template */

		(void) strcpy(template, t);

	}

}