src/core/cwuri.c

   1 /*
   2  * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 FILE_LICENCE ( GPL2_OR_LATER );
  20
  21 #include <stddef.h>
  22 #include <gpxe/uri.h>
  23
  24 /** @file
  25  *
  26  * Current working URI
  27  *
  28  * Somewhat analogous to the current working directory in a POSIX
  29  * system.
  30  */
  31
  32 /** Current working URI */
  33 struct uri *cwuri = NULL;
  34
  35 /**
  36  * Change working URI
  37  *
  38  * @v uri               New working URI, or NULL
  39  */
  40 void churi ( struct uri *uri ) {
  41         struct uri *new_uri = NULL;
  42
  43         if ( uri )
  44                 new_uri = resolve_uri ( cwuri, uri );
  45
  46         uri_put ( cwuri );
  47         cwuri = new_uri;
  48 }