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      1 /*	$NetBSD: v7fs.c,v 1.9 2025/12/21 23:55:14 nia Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 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 #if HAVE_NBTOOL_CONFIG_H
     33 #include "nbtool_config.h"
     34 #endif
     35 
     36 #include <sys/cdefs.h>
     37 #if defined(__RCSID) && !defined(__lint)
     38 __RCSID("$NetBSD: v7fs.c,v 1.9 2025/12/21 23:55:14 nia Exp $");
     39 #endif	/* !__lint */
     40 
     41 #if defined(HAVE_SYS_ENDIAN_H) || !defined(HAVE_NBTOOL_CONFIG_H)
     42 #include <sys/endian.h>
     43 #endif
     44 #include <stdio.h>
     45 #include <stdlib.h>
     46 #include <unistd.h>
     47 #include <string.h>
     48 #include <fcntl.h>
     49 #include <util.h>
     50 
     51 #include "makefs.h"
     52 #include "v7fs.h"
     53 #include "v7fs_impl.h"
     54 #include "v7fs_makefs.h"
     55 #include "newfs_v7fs.h"
     56 
     57 
     58 #ifndef HAVE_NBTOOL_CONFIG_H
     59 #include "progress.h"
     60 static bool progress_bar_enable;
     61 #endif
     62 int v7fs_newfs_verbose;
     63 
     64 void
     65 v7fs_prep_opts(fsinfo_t *fsopts)
     66 {
     67 	v7fs_opt_t *v7fs_opts = ecalloc(1, sizeof(*v7fs_opts));
     68 	const option_t v7fs_options[] = {
     69 		{ 'p', "pdp", &v7fs_opts->pdp_endian, OPT_INT32, false, true,
     70 		    "PDP endian" },
     71 		{ 'P', "progress", &v7fs_opts->progress, OPT_INT32, false, true,
     72 		  "Progress bar" },
     73 		{ .name = NULL }
     74 	};
     75 
     76 	fsopts->fs_specific = v7fs_opts;
     77 	fsopts->fs_options = copy_opts(v7fs_options);
     78 }
     79 
     80 void
     81 v7fs_cleanup_opts(fsinfo_t *fsopts)
     82 {
     83 	free(fsopts->fs_specific);
     84 	free(fsopts->fs_options);
     85 }
     86 
     87 int
     88 v7fs_parse_opts(const char *option, fsinfo_t *fsopts)
     89 {
     90 
     91 	return set_option_var(fsopts->fs_options, option, "1", NULL, 0) != -1;
     92 }
     93 
     94 void
     95 v7fs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
     96 {
     97 	struct v7fs_mount_device v7fs_mount;
     98 	int fd, endian, error = 1;
     99 	v7fs_opt_t *v7fs_opts = fsopts->fs_specific;
    100 
    101 	v7fs_newfs_verbose = debug;
    102 #ifndef HAVE_NBTOOL_CONFIG_H
    103 	if ((progress_bar_enable = v7fs_opts->progress)) {
    104 		progress_switch(progress_bar_enable);
    105 		progress_init();
    106 		progress(&(struct progress_arg){ .cdev = image });
    107 	}
    108 #endif
    109 
    110 	/* Determine filesystem image size */
    111 	v7fs_estimate(dir, root, fsopts);
    112 	printf("Calculated size of `%s': %lld bytes, %ld inodes\n",
    113 	    image, (long long)fsopts->size, (long)fsopts->inodes);
    114 
    115 	if ((fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) == -1) {
    116 		err(EXIT_FAILURE, "%s", image);
    117 	}
    118 	if (lseek(fd, fsopts->size - 1, SEEK_SET) == -1) {
    119 		goto err_exit;
    120 	}
    121 	if (write(fd, &fd, 1) != 1) {
    122 		goto err_exit;
    123 	}
    124 	if (lseek(fd, 0, SEEK_SET) == -1) {
    125 		goto err_exit;
    126 	}
    127 	fsopts->fd = fd;
    128 	v7fs_mount.device.fd = fd;
    129 
    130 #if !defined BYTE_ORDER
    131 #error
    132 #endif
    133 #if BYTE_ORDER == LITTLE_ENDIAN
    134 	if (fsopts->needswap)
    135 		endian = BIG_ENDIAN;
    136 	else
    137 		endian = LITTLE_ENDIAN;
    138 #else
    139 	if (fsopts->needswap)
    140 		endian = LITTLE_ENDIAN;
    141 	else
    142 		endian = BIG_ENDIAN;
    143 #endif
    144 	if (v7fs_opts->pdp_endian) {
    145 		endian = PDP_ENDIAN;
    146 	}
    147 
    148 	v7fs_mount.endian = endian;
    149 	v7fs_mount.sectors = fsopts->size >> V7FS_BSHIFT;
    150 	if (v7fs_newfs(&v7fs_mount, fsopts->inodes) != 0) {
    151 		goto err_exit;
    152 	}
    153 
    154 	if (v7fs_populate(dir, root, fsopts, &v7fs_mount) != 0) {
    155 		error = 2;	/* some files couldn't add */
    156 		goto err_exit;
    157 	}
    158 
    159 	close(fd);
    160 	return;
    161 
    162  err_exit:
    163 	close(fd);
    164 	err(error, "%s", image);
    165 }
    166 
    167 void
    168 progress(const struct progress_arg *p)
    169 {
    170 #ifndef HAVE_NBTOOL_CONFIG_H
    171 	static struct progress_arg Progress;
    172 	static char cdev[32];
    173 	static char label[32];
    174 
    175 	if (!progress_bar_enable)
    176 		return;
    177 
    178 	if (p) {
    179 		Progress = *p;
    180 		if (p->cdev)
    181 			strcpy(cdev, p->cdev);
    182 		if (p->label)
    183 			strcpy(label, p->label);
    184 	}
    185 
    186 	if (!Progress.tick)
    187 		return;
    188 	if (++Progress.cnt > Progress.tick) {
    189 		Progress.cnt = 0;
    190 		Progress.total++;
    191 		progress_bar(cdev, label, Progress.total, PROGRESS_BAR_GRANULE);
    192 	}
    193 #endif
    194 }
    195