1 /* $NetBSD: file_ufs.cpp,v 1.4 2008/04/28 20:23:20 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <machine/cdefs.h> 33 #include <machine/types.h> 34 #include <machine/int_types.h> 35 36 #include <file.h> 37 #include <file_ufs.h> 38 #include <console.h> 39 40 __BEGIN_DECLS 41 #include <stand.h> 42 #include <lib/libsa/ufs.h> 43 #include <winblk.h> 44 __END_DECLS 45 46 UfsFile::UfsFile(Console *&cons) 47 : File(cons) 48 { 49 static struct devsw devsw[] = { 50 {"winblk", winblkstrategy, winblkopen, 51 winblkclose, winblkioctl }, 52 }; 53 54 _f = static_cast<struct open_file *>(malloc(sizeof(struct open_file))); 55 _f->f_dev = devsw; 56 _debug = TRUE; 57 58 DPRINTF((TEXT("FileManager: UFS\n"))); 59 } 60 61 UfsFile::~UfsFile(void) 62 { 63 free(_f); 64 } 65 66 BOOL 67 UfsFile::setRoot(TCHAR *drive) 68 { 69 char name[MAX_PATH]; 70 int unit; 71 72 _to_ascii(name, drive, MAX_PATH); 73 if ('1' <= name[0] && name[0] <= '9' && name[1] == ':') 74 unit = name[0] - '0'; 75 else 76 unit = 1; 77 78 winblkopen(_f, "DSK", unit, 0); 79 80 return TRUE; 81 } 82 83 BOOL 84 UfsFile::open(const TCHAR *name, uint32_t flags) 85 { 86 int error; 87 88 if (!_to_ascii(_ascii_filename, name, MAX_PATH)) 89 return FALSE; 90 91 error = ufs_open(_ascii_filename, _f); 92 DPRINTF((TEXT("open file \"%s\" "), name)); 93 94 if (!error) 95 DPRINTF((TEXT("(%d byte).\n"), size())); 96 else 97 DPRINTF((TEXT("failed.\n"))); 98 99 return !error; 100 } 101 102 size_t 103 UfsFile::read(void *buf, size_t bytes, off_t ofs) 104 { 105 size_t sz; 106 107 if (ofs != -1) 108 ufs_seek(_f, ofs, SEEK_SET); 109 ufs_read(_f, buf, bytes, &sz); 110 111 return bytes - sz; 112 } 113 114 size_t 115 UfsFile::write(const void *buf, size_t bytes, off_t ofs) 116 { 117 size_t sz; 118 119 if (ofs != -1) 120 ufs_seek(_f, ofs, SEEK_SET); 121 ufs_write(_f,(void *) buf, bytes, &sz); 122 123 return bytes - sz; 124 } 125 126 BOOL 127 UfsFile::seek(off_t ofs) 128 { 129 ufs_seek(_f, ofs, SEEK_SET); 130 131 return TRUE; 132 } 133 134 size_t 135 UfsFile::size() 136 { 137 struct stat st; 138 139 ufs_stat(_f, &st); 140 141 return st.st_size; 142 } 143 144 BOOL 145 UfsFile::close() 146 { 147 return ufs_close(_f); 148 } 149