text: /*
   * Copyright (C) 2009, 2010 Nick Johnson <nickbjohnson4224 at gmail.com>
   * 
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <stdlib.h>
  #include <natio.h>
  #include <mutex.h>
  #include <proc.h>
  #include <ipc.h>
  
  #include <driver/io.h>
  #include <driver/vfs.h>
  
  /*****************************************************************************
   * __reset_wrapper
   *
   * Handles and redirects reset requests to the current active driver.
   */
  
  void __reset_wrapper(struct msg *msg) {
  	struct vfs_obj *file;
  
  	if (!_di_reset) {
  		merror(msg);
  		return;
  	}
  
  	file = vfs_get_index(RP_INDEX(msg->target));
  
  	if (!file || !(file->type & RP_TYPE_FILE)) {
  		merror(msg);
  		return;
  	}
  
  	if (!(acl_get(file->acl, gettuser()) & PERM_WRITE)) {
  		merror(msg);
  		return;
  	}
  
  	_di_reset(msg->source, file);
  
  	merror(msg); // errors are the same as valid replies
  }
  