winfs.c revision 1.2
1 1.2 takemura /* $NetBSD: winfs.c,v 1.2 2000/01/16 03:07:27 takemura Exp $ */ 2 1.2 takemura 3 1.2 takemura /*- 4 1.2 takemura * Copyright (c) 1999 Shin Takemura. 5 1.2 takemura * All rights reserved. 6 1.2 takemura * 7 1.2 takemura * This software is part of the PocketBSD. 8 1.2 takemura * 9 1.2 takemura * Redistribution and use in source and binary forms, with or without 10 1.2 takemura * modification, are permitted provided that the following conditions 11 1.2 takemura * are met: 12 1.2 takemura * 1. Redistributions of source code must retain the above copyright 13 1.2 takemura * notice, this list of conditions and the following disclaimer. 14 1.2 takemura * 2. Redistributions in binary form must reproduce the above copyright 15 1.2 takemura * notice, this list of conditions and the following disclaimer in the 16 1.2 takemura * documentation and/or other materials provided with the distribution. 17 1.2 takemura * 3. All advertising materials mentioning features or use of this software 18 1.2 takemura * must display the following acknowledgement: 19 1.2 takemura * This product includes software developed by the PocketBSD project 20 1.2 takemura * and its contributors. 21 1.2 takemura * 4. Neither the name of the project nor the names of its contributors 22 1.2 takemura * may be used to endorse or promote products derived from this software 23 1.2 takemura * without specific prior written permission. 24 1.2 takemura * 25 1.2 takemura * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 1.2 takemura * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 1.2 takemura * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 1.2 takemura * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 1.2 takemura * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 1.2 takemura * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 1.2 takemura * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 1.2 takemura * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 1.2 takemura * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 1.2 takemura * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 1.2 takemura * SUCH DAMAGE. 36 1.2 takemura * 37 1.2 takemura */ 38 1.2 takemura #define STANDALONE_WINDOWS_SIDE 39 1.2 takemura #include <stand.h> 40 1.2 takemura #include <winfs.h> 41 1.2 takemura 42 1.2 takemura #define MAXPATHLEN 1024 43 1.2 takemura 44 1.2 takemura /* 45 1.2 takemura * file system specific context. 46 1.2 takemura */ 47 1.2 takemura struct winfs { 48 1.2 takemura HANDLE hDevice; 49 1.2 takemura }; 50 1.2 takemura 51 1.2 takemura 52 1.2 takemura int 53 1.2 takemura win_open(path, f) 54 1.2 takemura char *path; 55 1.2 takemura struct open_file *f; 56 1.2 takemura { 57 1.2 takemura TCHAR *wpath = (TCHAR*)path; 58 1.2 takemura struct winfs *fsdata; 59 1.2 takemura 60 1.2 takemura fsdata = (struct winfs *)alloc(sizeof(*fsdata)); 61 1.2 takemura if (!fsdata) { 62 1.2 takemura return (ENOMEM); 63 1.2 takemura } 64 1.2 takemura 65 1.2 takemura win_printf(TEXT("open(%s)\n"), wpath); 66 1.2 takemura fsdata->hDevice = CreateFile(wpath, GENERIC_READ, 0, NULL, 67 1.2 takemura OPEN_EXISTING, 0, NULL); 68 1.2 takemura if (fsdata->hDevice == INVALID_HANDLE_VALUE) { 69 1.2 takemura win_printf(TEXT("can't open %s.\n"), wpath); 70 1.2 takemura free(fsdata, sizeof(*fsdata)); 71 1.2 takemura return (EIO); /* XXX, We shuld check GetLastError(). */ 72 1.2 takemura } 73 1.2 takemura 74 1.2 takemura f->f_fsdata = (void *)fsdata; 75 1.2 takemura 76 1.2 takemura return (0); 77 1.2 takemura } 78 1.2 takemura 79 1.2 takemura 80 1.2 takemura int 81 1.2 takemura win_close(f) 82 1.2 takemura struct open_file *f; 83 1.2 takemura { 84 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 85 1.2 takemura 86 1.2 takemura if (fsdata->hDevice != INVALID_HANDLE_VALUE) { 87 1.2 takemura CloseHandle(fsdata->hDevice); 88 1.2 takemura } 89 1.2 takemura free(fsdata, sizeof(*fsdata)); 90 1.2 takemura 91 1.2 takemura return (0); 92 1.2 takemura } 93 1.2 takemura 94 1.2 takemura 95 1.2 takemura int 96 1.2 takemura win_read(f, addr, size, resid) 97 1.2 takemura struct open_file *f; 98 1.2 takemura void *addr; 99 1.2 takemura size_t size; 100 1.2 takemura size_t *resid; /* out */ 101 1.2 takemura { 102 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 103 1.2 takemura DWORD read_len; 104 1.2 takemura 105 1.2 takemura while (size > 0) { 106 1.2 takemura if (!ReadFile(fsdata->hDevice, 107 1.2 takemura (u_char*)addr, size, 108 1.2 takemura &read_len, NULL)) { 109 1.2 takemura win_printf(TEXT("ReadFile() failed.\n")); 110 1.2 takemura } 111 1.2 takemura 112 1.2 takemura if (read_len == 0) 113 1.2 takemura break; /* EOF */ 114 1.2 takemura 115 1.2 takemura (unsigned long)addr += read_len; 116 1.2 takemura size -= read_len; 117 1.2 takemura } 118 1.2 takemura 119 1.2 takemura if (resid) 120 1.2 takemura *resid = size; 121 1.2 takemura return (0); 122 1.2 takemura } 123 1.2 takemura 124 1.2 takemura int 125 1.2 takemura win_write(f, start, size, resid) 126 1.2 takemura struct open_file *f; 127 1.2 takemura void *start; 128 1.2 takemura size_t size; 129 1.2 takemura size_t *resid; /* out */ 130 1.2 takemura { 131 1.2 takemura return (EROFS); /* XXX */ 132 1.2 takemura } 133 1.2 takemura 134 1.2 takemura 135 1.2 takemura int 136 1.2 takemura win_stat(f, sb) 137 1.2 takemura struct open_file *f; 138 1.2 takemura struct stat *sb; 139 1.2 takemura { 140 1.2 takemura sb->st_mode = 0444; 141 1.2 takemura sb->st_nlink = 1; 142 1.2 takemura sb->st_uid = 0; 143 1.2 takemura sb->st_gid = 0; 144 1.2 takemura sb->st_size = -1; 145 1.2 takemura return (0); 146 1.2 takemura } 147 1.2 takemura 148 1.2 takemura off_t 149 1.2 takemura win_seek(f, offset, whence) 150 1.2 takemura struct open_file *f; 151 1.2 takemura off_t offset; 152 1.2 takemura int whence; 153 1.2 takemura { 154 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 155 1.2 takemura DWORD dwPointer; 156 1.2 takemura int winwhence; 157 1.2 takemura 158 1.2 takemura switch (whence) { 159 1.2 takemura case SEEK_SET: 160 1.2 takemura winwhence = FILE_BEGIN; 161 1.2 takemura break; 162 1.2 takemura case SEEK_CUR: 163 1.2 takemura winwhence = FILE_CURRENT; 164 1.2 takemura break; 165 1.2 takemura case SEEK_END: 166 1.2 takemura winwhence = FILE_END; 167 1.2 takemura break; 168 1.2 takemura default: 169 1.2 takemura errno = EOFFSET; 170 1.2 takemura return (-1); 171 1.2 takemura } 172 1.2 takemura 173 1.2 takemura dwPointer = SetFilePointer(fsdata->hDevice, offset, NULL, winwhence); 174 1.2 takemura if (dwPointer == 0xffffffff) { 175 1.2 takemura errno = EINVAL; /* XXX, We shuld check GetLastError(). */ 176 1.2 takemura return (-1); 177 1.2 takemura } 178 1.2 takemura 179 1.2 takemura return (0); 180 1.2 takemura } 181
Indexes created Mon Sep 29 21:09:56 GMT 2025