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/* $NetBSD: winfs.c,v 1.5 2009/03/14 21:04:09 dsl Exp $ */
/*-
* Copyright (c) 1999 Shin Takemura.
* All rights reserved.
*
* This software is part of the PocketBSD.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the PocketBSD project
* and its contributors.
* 4. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#define STANDALONE_WINDOWS_SIDE
#include <stand.h>
#include <winfs.h>
#define MAXPATHLEN 1024
/*
* file system specific context.
*/
struct winfs {
HANDLE hDevice;
};
int
win_open(char *path, struct open_file *f)
{
TCHAR *wpath = (TCHAR*)path;
struct winfs *fsdata;
fsdata = (struct winfs *)alloc(sizeof(*fsdata));
if (!fsdata) {
return (ENOMEM);
}
win_printf(TEXT("open(%s)\n"), wpath);
fsdata->hDevice = CreateFile(wpath, GENERIC_READ, 0, NULL,
OPEN_EXISTING, 0, NULL);
if (fsdata->hDevice == INVALID_HANDLE_VALUE) {
win_printf(TEXT("can't open %s.\n"), wpath);
dealloc(fsdata, sizeof(*fsdata));
return (EIO); /* XXX, We shuld check GetLastError(). */
}
f->f_fsdata = (void *)fsdata;
return (0);
}
int
win_close(struct open_file *f)
{
struct winfs *fsdata = (struct winfs *) f->f_fsdata;
if (fsdata->hDevice != INVALID_HANDLE_VALUE) {
CloseHandle(fsdata->hDevice);
}
dealloc(fsdata, sizeof(*fsdata));
return (0);
}
int
win_read(struct open_file *f, void *addr, size_t size, size_t *resid)
/* resid: out */
{
struct winfs *fsdata = (struct winfs *) f->f_fsdata;
DWORD read_len;
while (size > 0) {
if (!ReadFile(fsdata->hDevice,
(u_char*)addr, size,
&read_len, NULL)) {
win_printf(TEXT("ReadFile() failed.\n"));
}
if (read_len == 0)
break; /* EOF */
(unsigned long)addr += read_len;
size -= read_len;
}
if (resid)
*resid = size;
return (0);
}
int
win_write(struct open_file *f, void *start, size_t size, size_t *resid)
/* resid: out */
{
return (EROFS); /* XXX */
}
int
win_stat(struct open_file *f, struct stat *sb)
{
sb->st_mode = 0444;
sb->st_nlink = 1;
sb->st_uid = 0;
sb->st_gid = 0;
sb->st_size = -1;
return (0);
}
off_t
win_seek(struct open_file *f, off_t offset, int whence)
{
struct winfs *fsdata = (struct winfs *) f->f_fsdata;
DWORD dwPointer;
int winwhence;
switch (whence) {
case SEEK_SET:
winwhence = FILE_BEGIN;
break;
case SEEK_CUR:
winwhence = FILE_CURRENT;
break;
case SEEK_END:
winwhence = FILE_END;
break;
default:
errno = EOFFSET;
return (-1);
}
dwPointer = SetFilePointer(fsdata->hDevice, offset, NULL, winwhence);
if (dwPointer == 0xffffffff) {
errno = EINVAL; /* XXX, We shuld check GetLastError(). */
return (-1);
}
return (0);
}
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