/*      $NetBSD: hfs.c,v 1.5 2005/12/11 12:18:06 christos Exp $ */

/*-
* Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/param.h>
#include <lib/libkern/libkern.h>
#include <lib/libsa/stand.h>

#include <openfirm.h>
#include <hfs.h>

static int OF_fd;       /* XXX */

int
hfs_open(const char *path, struct open_file *f)
{
       int chosen;
       char bootpath[128], *cp;

       if ((chosen = OF_finddevice("/chosen")) == -1)
               return ENXIO;
       memset(bootpath, 0, sizeof bootpath);
       OF_getprop(chosen, "bootpath", bootpath, sizeof bootpath);
       cp = strrchr(bootpath, ',');
       if (cp == NULL)
               return ENXIO;

       strcpy(cp + 1, path);
       OF_fd = OF_open(bootpath);
       if (OF_fd == -1)
               return ENOENT;

       return 0;
}

int
hfs_close(struct open_file *f)
{
       OF_close(OF_fd);
       return 0;
}

int
hfs_read(struct open_file *f, void *start, size_t size, size_t *resid)
{
       int len;

       len = OF_read(OF_fd, start, size);
       size -= len;
       if (resid)
               *resid = size;
       return 0;
}

int
hfs_write(struct open_file *f, void *start, size_t size, size_t *resid)
{
       printf("hfs_write\n");
       return ENXIO;
}

off_t
hfs_seek(struct open_file *f, off_t offset, int where)
{
       switch (where) {
       case SEEK_SET:
               return OF_seek(OF_fd, offset);
       case SEEK_CUR:
       case SEEK_END:
       default:
               return -1;
       }
}

int
hfs_stat(struct open_file *f, struct stat *sb)
{
       return 0;
}