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hfs.c revision 1.1 
      1 /*	$NetBSD: hfs.c,v 1.1 2000/11/14 11:25:35 tsubai Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/param.h>
     30 #include <lib/libkern/libkern.h>
     31 #include <lib/libsa/stand.h>
     32 
     33 #include <openfirm.h>
     34 #include <hfs.h>
     35 
     36 static int OF_fd;	/* XXX */
     37 
     38 int
     39 hfs_open(path, f)
     40 	char *path;
     41 	struct open_file *f;
     42 {
     43 	int chosen;
     44 	char bootpath[128], *cp;
     45 
     46 	if ((chosen = OF_finddevice("/chosen")) == -1)
     47 		return ENXIO;
     48 	bzero(bootpath, sizeof bootpath);
     49 	OF_getprop(chosen, "bootpath", bootpath, sizeof bootpath);
     50 	cp = strrchr(bootpath, ',');
     51 	if (cp == NULL)
     52 		return ENXIO;
     53 
     54 	strcpy(cp + 1, path);
     55 	OF_fd = OF_open(bootpath);
     56 	if (OF_fd == -1)
     57 		return ENOENT;
     58 
     59 	return 0;
     60 }
     61 
     62 int
     63 hfs_close(f)
     64 	struct open_file *f;
     65 {
     66 	OF_close(OF_fd);
     67 	return 0;
     68 }
     69 
     70 int
     71 hfs_read(f, start, size, resid)
     72 	struct open_file *f;
     73 	void *start;
     74 	size_t size, *resid;
     75 {
     76 	int len;
     77 
     78 	len = OF_read(OF_fd, start, size);
     79 	size -= len;
     80 	if (resid)
     81 		*resid = size;
     82 	return 0;
     83 }
     84 
     85 int
     86 hfs_write(f, start, size, resid)
     87 	struct open_file *f;
     88 	void *start;
     89 	size_t size, *resid;
     90 {
     91 	printf("hfs_write\n");
     92 	return ENXIO;
     93 }
     94 
     95 off_t
     96 hfs_seek(f, offset, where)
     97 	struct open_file *f;
     98 	off_t offset;
     99 	int where;
    100 {
    101 	switch (where) {
    102 	case SEEK_SET:
    103 		return OF_seek(OF_fd, offset);
    104 	case SEEK_CUR:
    105 	case SEEK_END:
    106 	default:
    107 		return -1;
    108 	}
    109 }
    110 
    111 int
    112 hfs_stat(f, sb)
    113 	struct open_file *f;
    114 	struct stat *sb;
    115 {
    116 	return 0;
    117 }
    118