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 } 118