minix/sbin/newfs_v7fs/newfs_v7fs.c

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/* $NetBSD: newfs_v7fs.c,v 1.3 2011/08/10 12:13:20 wiz Exp $ */
/*-
* Copyright (c) 2004, 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: newfs_v7fs.c,v 1.3 2011/08/10 12:13:20 wiz Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <fs/v7fs/v7fs.h>
#include "v7fs_impl.h"
#include "progress.h"
#include "newfs_v7fs.h"
static void usage(void) __dead;
static bool progress_bar_enable = false;
int v7fs_newfs_verbose = 3; /* newfs compatible */
int
main(int argc, char **argv)
{
const char *device;
struct disklabel d;
struct partition *p;
struct stat st;
uint32_t partsize;
int Fflag, Zflag;
int part;
int fd, ch;
int endian = _BYTE_ORDER;
int32_t maxfile = 0;
if (argc < 2)
usage();
Fflag = Zflag = partsize = 0;
while ((ch = getopt(argc, argv, "Fs:Zs:n:B:V:")) != -1) {
switch (ch) {
case 'V':
v7fs_newfs_verbose = atoi(optarg);
break;
case 'F':
Fflag = 1;
break;
case 's':
partsize = atoi(optarg);
break;
case 'n':
maxfile = atoi(optarg);
break;
case 'Z':
Zflag = 1;
break;
case 'B':
switch (optarg[0]) {
case 'l':
endian = _LITTLE_ENDIAN;
break;
case 'b':
endian = _BIG_ENDIAN;
break;
case 'p':
endian = _PDP_ENDIAN;
break;
}
break;
default:
usage();
/*NOTREACHED*/
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
device = argv[0];
progress_bar_enable = v7fs_newfs_verbose > 1;
if (progress_bar_enable) {
progress_switch(progress_bar_enable);
progress_init();
progress(&(struct progress_arg){ .cdev = device });
}
if (!Fflag) {
if ((fd = open(device, O_RDWR)) == -1) {
err(EXIT_FAILURE, "%s", device);
}
if (fstat(fd, &st) != 0) {
goto err_exit;
}
if (!S_ISCHR(st.st_mode)) {
warnx("not a raw device.\n");
}
part = DISKPART(st.st_rdev);
if (ioctl(fd, DIOCGDINFO, &d) == -1) {
goto err_exit;
}
p = &d.d_partitions[part];
if (v7fs_newfs_verbose) {
printf("partition=%d size=%d offset=%d fstype=%d"
" secsize=%d\n", part, p->p_size, p->p_offset,
p->p_fstype, d.d_secsize);
}
if (p->p_fstype != FS_V7) {
warnx("not a Version 7 partition.");
goto err_exit;
}
partsize = p->p_size;
} else {
off_t filesize;
uint8_t zbuf[8192] = {0, };
if (partsize == 0) {
errx(EXIT_FAILURE, "-F requires -s");
}
filesize = partsize << V7FS_BSHIFT;
fd = open(device, O_RDWR|O_CREAT|O_TRUNC, 0666);
if (fd == -1) {
err(EXIT_FAILURE, "%s", device);
}
if (Zflag) {
while (filesize > 0) {
size_t writenow = MIN(filesize,
(off_t)sizeof(zbuf));
if ((size_t)write(fd, zbuf, writenow) !=
writenow) {
err(EXIT_FAILURE, NULL);
}
filesize -= writenow;
}
} else {
if (lseek(fd, filesize - 1, SEEK_SET) == -1) {
goto err_exit;
}
if (write(fd, zbuf, 1) != 1) {
goto err_exit;
}
if (lseek(fd, 0, SEEK_SET) == -1) {
goto err_exit;
}
}
}
if (v7fs_newfs(&(struct v7fs_mount_device)
{ .device.fd = fd, .endian = endian, .sectors = partsize },
maxfile) != 0)
goto err_exit;
close(fd);
return EXIT_SUCCESS;
err_exit:
close(fd);
err(EXIT_FAILURE, NULL);
}
void
progress(const struct progress_arg *p)
{
static struct progress_arg Progress;
static char cdev[32];
static char label[32];
if (!progress_bar_enable)
return;
if (p) {
Progress = *p;
if (p->cdev)
strcpy(cdev, p->cdev);
if (p->label)
strcpy(label, p->label);
}
if (!Progress.tick)
return;
if (++Progress.cnt > Progress.tick) {
Progress.cnt = 0;
Progress.total++;
progress_bar(cdev, label, Progress.total, PROGRESS_BAR_GRANULE);
}
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: \n%s [-FZ] [-B byte-order]"
" [-n inodes] [-s sectors] [-V verbose] special\n", getprogname());
exit(EXIT_FAILURE);
}