sbin/newfs_v7fs/newfs_v7fs.c

   1 /*      $NetBSD: newfs_v7fs.c,v 1.5 2017/01/10 20:53:09 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2004, 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __RCSID("$NetBSD: newfs_v7fs.c,v 1.5 2017/01/10 20:53:09 christos Exp $");
  35 #endif /* not lint */
  36
  37 #include <sys/types.h>
  38 #include <sys/param.h>
  39 #include <sys/disklabel.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/stat.h>
  42
  43 #include <err.h>
  44 #include <stdio.h>
  45 #include <string.h>
  46 #include <stdlib.h>
  47 #include <unistd.h>
  48 #include <fcntl.h>
  49
  50 #include <fs/v7fs/v7fs.h>
  51 #include "v7fs_impl.h"
  52 #include "progress.h"
  53 #include "newfs_v7fs.h"
  54
  55 static void usage(void) __dead;
  56 static bool progress_bar_enable = false;
  57 int v7fs_newfs_verbose = 3;     /* newfs compatible */
  58
  59 int
  60 main(int argc, char **argv)
  61 {
  62         const char *device;
  63         struct disklabel d;
  64         struct partition *p;
  65         struct stat st;
  66         uint32_t partsize;
  67         int Fflag, Zflag;
  68         int part;
  69         int fd, ch;
  70         int endian = _BYTE_ORDER;
  71         int32_t maxfile = 0;
  72
  73         if (argc < 2)
  74                 usage();
  75
  76         Fflag = Zflag = partsize = 0;
  77         while ((ch = getopt(argc, argv, "Fs:Zs:n:B:V:")) != -1) {
  78                 switch (ch) {
  79                 case 'V':
  80                         v7fs_newfs_verbose = atoi(optarg);
  81                         break;
  82                 case 'F':
  83                         Fflag = 1;
  84                         break;
  85                 case 's':
  86                         partsize = atoi(optarg);
  87                         break;
  88                 case 'n':
  89                         maxfile = atoi(optarg);
  90                         break;
  91                 case 'Z':
  92                         Zflag = 1;
  93                         break;
  94                 case 'B':
  95                         switch (optarg[0]) {
  96                         case 'l':
  97                                 endian = _LITTLE_ENDIAN;
  98                                 break;
  99                         case 'b':
 100                                 endian = _BIG_ENDIAN;
 101                                 break;
 102                         case 'p':
 103                                 endian = _PDP_ENDIAN;
 104                                 break;
 105                         }
 106                         break;
 107                 default:
 108                         usage();
 109                         /*NOTREACHED*/
 110                 }
 111         }
 112         argc -= optind;
 113         argv += optind;
 114
 115         if (argc != 1)
 116                 usage();
 117         device = argv[0];
 118
 119         progress_bar_enable = v7fs_newfs_verbose > 1;
 120
 121
 122         if (progress_bar_enable) {
 123                 progress_switch(progress_bar_enable);
 124                 progress_init();
 125                 progress(&(struct progress_arg){ .cdev = device });
 126         }
 127
 128         if (!Fflag) {
 129                 if ((fd = open(device, O_RDWR)) == -1) {
 130                         err(EXIT_FAILURE, "%s", device);
 131                 }
 132                 if (fstat(fd, &st) != 0) {
 133                         goto err_exit;
 134                 }
 135                 if (!S_ISCHR(st.st_mode)) {
 136                         warnx("not a raw device");
 137                 }
 138
 139                 part = DISKPART(st.st_rdev);
 140
 141                 if (ioctl(fd, DIOCGDINFO, &d) == -1) {
 142                         goto err_exit;
 143                 }
 144                 p = &d.d_partitions[part];
 145                 if (v7fs_newfs_verbose) {
 146                         printf("partition=%d size=%d offset=%d fstype=%d"
 147                             " secsize=%d\n", part, p->p_size, p->p_offset,
 148                             p->p_fstype, d.d_secsize);
 149                 }
 150                 if (p->p_fstype != FS_V7) {
 151                         warnx("not a Version 7 partition");
 152                         goto err_exit;
 153                 }
 154                 partsize = p->p_size;
 155         } else {
 156                 off_t filesize;
 157                 uint8_t zbuf[8192] = {0, };
 158
 159                 if (partsize == 0) {
 160                         errx(EXIT_FAILURE, "-F requires -s");
 161                 }
 162
 163                 filesize = partsize << V7FS_BSHIFT;
 164
 165                 fd = open(device, O_RDWR|O_CREAT|O_TRUNC, 0666);
 166                 if (fd == -1) {
 167                         err(EXIT_FAILURE, "%s", device);
 168                 }
 169
 170                 if (Zflag) {
 171                         while (filesize > 0) {
 172                                 size_t writenow = MIN(filesize,
 173                                     (off_t)sizeof(zbuf));
 174
 175                                 if ((size_t)write(fd, zbuf, writenow) !=
 176                                     writenow) {
 177                                         err(EXIT_FAILURE, NULL);
 178                                 }
 179                                 filesize -= writenow;
 180                         }
 181                 } else {
 182                         if (lseek(fd, filesize - 1, SEEK_SET) == -1) {
 183                                 goto err_exit;
 184                         }
 185                         if (write(fd, zbuf, 1) != 1) {
 186                                 goto err_exit;
 187                         }
 188                         if (lseek(fd, 0, SEEK_SET) == -1) {
 189                                 goto err_exit;
 190                         }
 191                 }
 192         }
 193
 194         if (v7fs_newfs(&(struct v7fs_mount_device)
 195                 { .device.fd = fd, .endian = endian, .sectors = partsize },
 196                 maxfile) != 0)
 197                 goto err_exit;
 198
 199         close(fd);
 200
 201         return EXIT_SUCCESS;
 202  err_exit:
 203         close(fd);
 204         err(EXIT_FAILURE, NULL);
 205 }
 206
 207 void
 208 progress(const struct progress_arg *p)
 209 {
 210         static struct progress_arg Progress;
 211         static char cdev[32];
 212         static char label[32];
 213
 214         if (!progress_bar_enable)
 215                 return;
 216
 217         if (p) {
 218                 Progress = *p;
 219                 if (p->cdev)
 220                         strcpy(cdev, p->cdev);
 221                 if (p->label)
 222                         strcpy(label, p->label);
 223         }
 224
 225         if (!Progress.tick)
 226                 return;
 227         if (++Progress.cnt > Progress.tick) {
 228                 Progress.cnt = 0;
 229                 Progress.total++;
 230                 progress_bar(cdev, label, Progress.total, PROGRESS_BAR_GRANULE);
 231         }
 232 }
 233
 234 static void
 235 usage(void)
 236 {
 237
 238         (void)fprintf(stderr, "usage: \n%s [-FZ] [-B byte-order]"
 239             " [-n inodes] [-s sectors] [-V verbose] special\n", getprogname());
 240
 241         exit(EXIT_FAILURE);
 242 }