winfs.c revision 1.5
1 1.5 dsl /* $NetBSD: winfs.c,v 1.5 2009/03/14 21:04:09 dsl 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 1.4 dsl win_open(char *path, struct open_file *f) 54 1.2 takemura { 55 1.2 takemura TCHAR *wpath = (TCHAR*)path; 56 1.2 takemura struct winfs *fsdata; 57 1.2 takemura 58 1.2 takemura fsdata = (struct winfs *)alloc(sizeof(*fsdata)); 59 1.2 takemura if (!fsdata) { 60 1.2 takemura return (ENOMEM); 61 1.2 takemura } 62 1.2 takemura 63 1.2 takemura win_printf(TEXT("open(%s)\n"), wpath); 64 1.2 takemura fsdata->hDevice = CreateFile(wpath, GENERIC_READ, 0, NULL, 65 1.2 takemura OPEN_EXISTING, 0, NULL); 66 1.2 takemura if (fsdata->hDevice == INVALID_HANDLE_VALUE) { 67 1.2 takemura win_printf(TEXT("can't open %s.\n"), wpath); 68 1.3 christos dealloc(fsdata, sizeof(*fsdata)); 69 1.2 takemura return (EIO); /* XXX, We shuld check GetLastError(). */ 70 1.2 takemura } 71 1.2 takemura 72 1.2 takemura f->f_fsdata = (void *)fsdata; 73 1.2 takemura 74 1.2 takemura return (0); 75 1.2 takemura } 76 1.2 takemura 77 1.2 takemura 78 1.2 takemura int 79 1.4 dsl win_close(struct open_file *f) 80 1.2 takemura { 81 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 82 1.2 takemura 83 1.2 takemura if (fsdata->hDevice != INVALID_HANDLE_VALUE) { 84 1.2 takemura CloseHandle(fsdata->hDevice); 85 1.2 takemura } 86 1.3 christos dealloc(fsdata, sizeof(*fsdata)); 87 1.2 takemura 88 1.2 takemura return (0); 89 1.2 takemura } 90 1.2 takemura 91 1.2 takemura 92 1.2 takemura int 93 1.5 dsl win_read(struct open_file *f, void *addr, size_t size, size_t *resid) 94 1.5 dsl /* resid: out */ 95 1.2 takemura { 96 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 97 1.2 takemura DWORD read_len; 98 1.2 takemura 99 1.2 takemura while (size > 0) { 100 1.2 takemura if (!ReadFile(fsdata->hDevice, 101 1.2 takemura (u_char*)addr, size, 102 1.2 takemura &read_len, NULL)) { 103 1.2 takemura win_printf(TEXT("ReadFile() failed.\n")); 104 1.2 takemura } 105 1.2 takemura 106 1.2 takemura if (read_len == 0) 107 1.2 takemura break; /* EOF */ 108 1.2 takemura 109 1.2 takemura (unsigned long)addr += read_len; 110 1.2 takemura size -= read_len; 111 1.2 takemura } 112 1.2 takemura 113 1.2 takemura if (resid) 114 1.2 takemura *resid = size; 115 1.2 takemura return (0); 116 1.2 takemura } 117 1.2 takemura 118 1.2 takemura int 119 1.5 dsl win_write(struct open_file *f, void *start, size_t size, size_t *resid) 120 1.5 dsl /* resid: out */ 121 1.2 takemura { 122 1.2 takemura return (EROFS); /* XXX */ 123 1.2 takemura } 124 1.2 takemura 125 1.2 takemura 126 1.2 takemura int 127 1.4 dsl win_stat(struct open_file *f, struct stat *sb) 128 1.2 takemura { 129 1.2 takemura sb->st_mode = 0444; 130 1.2 takemura sb->st_nlink = 1; 131 1.2 takemura sb->st_uid = 0; 132 1.2 takemura sb->st_gid = 0; 133 1.2 takemura sb->st_size = -1; 134 1.2 takemura return (0); 135 1.2 takemura } 136 1.2 takemura 137 1.2 takemura off_t 138 1.4 dsl win_seek(struct open_file *f, off_t offset, int whence) 139 1.2 takemura { 140 1.2 takemura struct winfs *fsdata = (struct winfs *) f->f_fsdata; 141 1.2 takemura DWORD dwPointer; 142 1.2 takemura int winwhence; 143 1.2 takemura 144 1.2 takemura switch (whence) { 145 1.2 takemura case SEEK_SET: 146 1.2 takemura winwhence = FILE_BEGIN; 147 1.2 takemura break; 148 1.2 takemura case SEEK_CUR: 149 1.2 takemura winwhence = FILE_CURRENT; 150 1.2 takemura break; 151 1.2 takemura case SEEK_END: 152 1.2 takemura winwhence = FILE_END; 153 1.2 takemura break; 154 1.2 takemura default: 155 1.2 takemura errno = EOFFSET; 156 1.2 takemura return (-1); 157 1.2 takemura } 158 1.2 takemura 159 1.2 takemura dwPointer = SetFilePointer(fsdata->hDevice, offset, NULL, winwhence); 160 1.2 takemura if (dwPointer == 0xffffffff) { 161 1.2 takemura errno = EINVAL; /* XXX, We shuld check GetLastError(). */ 162 1.2 takemura return (-1); 163 1.2 takemura } 164 1.2 takemura 165 1.2 takemura return (0); 166 1.2 takemura } 167
Indexes created Tue Sep 30 06:09:59 GMT 2025