/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1997, 2012 Oracle and/or its affiliates.  All rights reserved.
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 * $Id$
 */

#include "db_config.h"

#include "db_int.h"

/*
 * __db_mkpath -- --
 *	Create intermediate directories.
 *
 * PUBLIC: int __db_mkpath __P((ENV *, const char *));
 */
int
__db_mkpath(env, name)
	ENV *env;
	const char *name;
{
	size_t len;
	int ret;
	char *p, *t, savech;

	/*
	 * Get a copy so we can modify the string.  It's a path and potentially
	 * quite long, so don't allocate the space on the stack.
	 */
	len = strlen(name) + 1;
	if ((ret = __os_malloc(env, len, &t)) != 0)
		return (ret);
	memcpy(t, name, len);

	/*
	 * Cycle through the path, creating intermediate directories.
	 *
	 * Skip the first byte if it's a path separator, it's the start of an
	 * absolute pathname.
	 */
	if (PATH_SEPARATOR[1] == '\0') {
		for (p = t + 1; p[0] != '\0'; ++p)
			if (p[0] == PATH_SEPARATOR[0]) {
				savech = *p;
				*p = '\0';
				if (__os_exists(env, t, NULL) &&
				    (ret = __os_mkdir(
					env, t, env->dir_mode)) != 0)
					break;
				*p = savech;
			}
	} else
		for (p = t + 1; p[0] != '\0'; ++p)
			if (strchr(PATH_SEPARATOR, p[0]) != NULL) {
				savech = *p;
				*p = '\0';
				if (__os_exists(env, t, NULL) &&
				    (ret = __os_mkdir(
					env, t, env->dir_mode)) != 0)
					break;
				*p = savech;
			}

	__os_free(env, t);
	return (ret);
}