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Annotation of sys/arch/macppc/stand/hfs.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: hfs.c,v 1.4 2005/09/26 19:55:47 kettenis Exp $        */
                      2: /*     $NetBSD: hfs.c,v 1.1 2000/11/14 11:25:35 tsubai Exp $   */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. The name of the author may not be used to endorse or promote products
                     16:  *    derived from this software without specific prior written permission.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     19:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     20:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     21:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     22:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     23:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     24:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     25:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     26:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
                     27:  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     28:  */
                     29:
                     30: #include <sys/param.h>
                     31: #include <lib/libkern/libkern.h>
                     32: #include <lib/libsa/stand.h>
                     33:
                     34: #include <openfirm.h>
                     35: #include <hfs.h>
                     36:
                     37: static int OF_fd;      /* XXX */
                     38:
                     39: int
                     40: hfs_open(char *path, struct open_file *f)
                     41: {
                     42:        int chosen;
                     43:        char bootpath[128], *cp;
                     44:
                     45:        if ((chosen = OF_finddevice("/chosen")) == -1)
                     46:                return ENXIO;
                     47:        bzero(bootpath, sizeof bootpath);
                     48:        OF_getprop(chosen, "bootpath", bootpath, sizeof bootpath);
                     49:
                     50: #ifdef HAVE_STAND_STRRCHR
                     51:        cp = strrchr(bootpath, ',');
                     52: #else
                     53:        cp = bootpath;
                     54:        cp += strlen(bootpath);
                     55:        for (; *cp != ','; cp--) {
                     56:                if (cp == bootpath) {
                     57:                        cp = NULL;
                     58:                        break;
                     59:                }
                     60:        }
                     61: #endif
                     62:        if (cp == NULL)
                     63:                return ENXIO;
                     64:
                     65:        strlcpy(cp + 1, path, bootpath + sizeof bootpath - (cp + 1));
                     66:        OF_fd = OF_open(bootpath);
                     67:        if (OF_fd == -1)
                     68:                return ENOENT;
                     69:        return 0;
                     70: }
                     71:
                     72: int
                     73: hfs_close(struct open_file *f)
                     74: {
                     75:        OF_close(OF_fd);
                     76:        return 0;
                     77: }
                     78:
                     79: int
                     80: hfs_read(struct open_file *f, void *start, size_t size, size_t *resid)
                     81: {
                     82:        int len;
                     83:
                     84:        len = OF_read(OF_fd, start, size);
                     85:        if (len == -1)
                     86:                return EIO;
                     87:        size -= len;
                     88:        if (resid)
                     89:                *resid = size;
                     90:        return 0;
                     91: }
                     92:
                     93: int
                     94: hfs_write(struct open_file *f, void *start, size_t size, size_t *resid)
                     95: {
                     96:        printf("hfs_write\n");
                     97:        return ENXIO;
                     98: }
                     99:
                    100: off_t
                    101: hfs_seek(struct open_file *f, off_t offset, int where)
                    102: {
                    103:        switch (where) {
                    104:        case SEEK_SET:
                    105:                return OF_seek(OF_fd, offset);
                    106:        case SEEK_CUR:
                    107:        case SEEK_END:
                    108:        default:
                    109:                return -1;
                    110:        }
                    111: }
                    112:
                    113: int
                    114: hfs_stat(struct open_file *f, struct stat *sb)
                    115: {
                    116:        return 0;
                    117: }