156 lines
3.7 KiB
C++
156 lines
3.7 KiB
C++
/* $NetBSD: file_ufs.cpp,v 1.1 2001/02/09 18:34:39 uch Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/cdefs.h>
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#include <machine/types.h>
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#include <machine/int_types.h>
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#include <file.h>
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#include <file_ufs.h>
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#include <console.h>
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__BEGIN_DECLS
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#include <stand.h>
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#include <lib/libsa/ufs.h>
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#include <winblk.h>
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__END_DECLS
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UfsFile::UfsFile(Console *&cons)
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: File(cons)
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{
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static struct devsw devsw[] = {
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{"winblk", winblkstrategy, winblkopen,
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winblkclose, winblkioctl },
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};
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_f = static_cast<struct open_file *>(malloc(sizeof(struct open_file)));
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_f->f_dev = devsw;
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_debug = TRUE;
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DPRINTF((TEXT("File: UFS\n")));
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}
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UfsFile::~UfsFile(void)
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{
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free(_f);
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}
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BOOL
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UfsFile::setRoot(TCHAR *drive)
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{
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char name[MAX_PATH];
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int unit;
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_to_ascii(name, drive, MAX_PATH);
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if ('1' <= name[0] && name[0] <= '9' && name[1] == ':')
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unit = name[0] - '0';
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else
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unit = 1;
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winblkopen(_f, "DSK", unit, 0);
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return TRUE;
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}
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BOOL
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UfsFile::open(const TCHAR *name, u_int32_t flags)
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{
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int error;
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if (!_to_ascii(_ascii_filename, name, MAX_PATH))
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return FALSE;
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error = ufs_open(_ascii_filename, _f);
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DPRINTF((TEXT("open file \"%s\" "), name));
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if (!error)
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DPRINTF((TEXT("(%d byte).\n"), size()));
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else
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DPRINTF((TEXT("failed.\n")));
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return !error;
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}
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size_t
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UfsFile::read(void *buf, size_t bytes, off_t ofs)
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{
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size_t sz;
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if (ofs != -1)
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ufs_seek(_f, ofs, SEEK_SET);
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ufs_read(_f, buf, bytes, &sz);
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return bytes - sz;
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}
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size_t
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UfsFile::write(const void *buf, size_t bytes, off_t ofs)
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{
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size_t sz;
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if (ofs != -1)
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ufs_seek(_f, ofs, SEEK_SET);
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ufs_write(_f,(void *) buf, bytes, &sz);
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return bytes - sz;
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}
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BOOL
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UfsFile::seek(off_t ofs)
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{
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ufs_seek(_f, ofs, SEEK_SET);
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return TRUE;
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}
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size_t
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UfsFile::size()
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{
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struct stat st;
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ufs_stat(_f, &st);
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return st.st_size;
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}
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BOOL
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UfsFile::close()
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{
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return ufs_close(_f);
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}
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