cwuri.c

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00001 /*
00002  * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License as
00006  * published by the Free Software Foundation; either version 2 of the
00007  * License, or any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017  */
00018 
00019 FILE_LICENCE ( GPL2_OR_LATER );
00020 
00021 #include <stddef.h>
00022 #include <gpxe/uri.h>
00023 
00024 /** @file
00025  *
00026  * Current working URI
00027  *
00028  * Somewhat analogous to the current working directory in a POSIX
00029  * system.
00030  */
00031 
00032 /** Current working URI */
00033 struct uri *cwuri = NULL;
00034 
00035 /**
00036  * Change working URI
00037  *
00038  * @v uri               New working URI, or NULL
00039  */
00040 void churi ( struct uri *uri ) {
00041         struct uri *new_uri;
00042 
00043         new_uri = resolve_uri ( cwuri, uri );
00044         uri_put ( cwuri );
00045         cwuri = new_uri;
00046 }