ipxe/src/core/cwuri.c

/*
 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

FILE_LICENCE ( GPL2_OR_LATER );

#include <stddef.h>
#include <ipxe/uri.h>

/** @file
 *
 * Current working URI
 *
 * Somewhat analogous to the current working directory in a POSIX
 * system.
 */

/** Current working URI */
struct uri *cwuri = NULL;

/**
 * Change working URI
 *
 * @v uri		New working URI, or NULL
 */
void churi ( struct uri *uri ) {
	struct uri *new_uri = NULL;

	if ( uri )
		new_uri = resolve_uri ( cwuri, uri );

	uri_put ( cwuri );
	cwuri = new_uri;
}