/*      $NetBSD: v7fs.c,v 1.8 2013/01/29 15:52:25 christos Exp $        */

/*-
* Copyright (c) 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.
*/

#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(__lint)
__RCSID("$NetBSD: v7fs.c,v 1.8 2013/01/29 15:52:25 christos Exp $");
#endif  /* !__lint */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <util.h>

#include "makefs.h"
#include "v7fs.h"
#include "v7fs_impl.h"
#include "v7fs_makefs.h"
#include "newfs_v7fs.h"


#ifndef HAVE_NBTOOL_CONFIG_H
#include "progress.h"
static bool progress_bar_enable;
#endif
int v7fs_newfs_verbose;

void
v7fs_prep_opts(fsinfo_t *fsopts)
{
       v7fs_opt_t *v7fs_opts = ecalloc(1, sizeof(*v7fs_opts));
       const option_t v7fs_options[] = {
               { 'p', "pdp", &v7fs_opts->pdp_endian, OPT_INT32, false, true,
                   "PDP endian" },
               { 'P', "progress", &v7fs_opts->progress, OPT_INT32, false, true,
                 "Progress bar" },
               { .name = NULL }
       };

       fsopts->fs_specific = v7fs_opts;
       fsopts->fs_options = copy_opts(v7fs_options);
}

void
v7fs_cleanup_opts(fsinfo_t *fsopts)
{
       free(fsopts->fs_specific);
       free(fsopts->fs_options);
}

int
v7fs_parse_opts(const char *option, fsinfo_t *fsopts)
{

       return set_option_var(fsopts->fs_options, option, "1", NULL, 0) != -1;
}

void
v7fs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
{
       struct v7fs_mount_device v7fs_mount;
       int fd, endian, error = 1;
       v7fs_opt_t *v7fs_opts = fsopts->fs_specific;

       v7fs_newfs_verbose = debug;
#ifndef HAVE_NBTOOL_CONFIG_H
       if ((progress_bar_enable = v7fs_opts->progress)) {
               progress_switch(progress_bar_enable);
               progress_init();
               progress(&(struct progress_arg){ .cdev = image });
       }
#endif

       /* Determine filesystem image size */
       v7fs_estimate(dir, root, fsopts);
       printf("Calculated size of `%s': %lld bytes, %ld inodes\n",
           image, (long long)fsopts->size, (long)fsopts->inodes);

       if ((fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) == -1) {
               err(EXIT_FAILURE, "%s", image);
       }
       if (lseek(fd, fsopts->size - 1, SEEK_SET) == -1) {
               goto err_exit;
       }
       if (write(fd, &fd, 1) != 1) {
               goto err_exit;
       }
       if (lseek(fd, 0, SEEK_SET) == -1) {
               goto err_exit;
       }
       fsopts->fd = fd;
       v7fs_mount.device.fd = fd;

#if !defined BYTE_ORDER
#error
#endif
#if BYTE_ORDER == LITTLE_ENDIAN
       if (fsopts->needswap)
               endian = BIG_ENDIAN;
       else
               endian = LITTLE_ENDIAN;
#else
       if (fsopts->needswap)
               endian = LITTLE_ENDIAN;
       else
               endian = BIG_ENDIAN;
#endif
       if (v7fs_opts->pdp_endian) {
               endian = PDP_ENDIAN;
       }

       v7fs_mount.endian = endian;
       v7fs_mount.sectors = fsopts->size >> V7FS_BSHIFT;
       if (v7fs_newfs(&v7fs_mount, fsopts->inodes) != 0) {
               goto err_exit;
       }

       if (v7fs_populate(dir, root, fsopts, &v7fs_mount) != 0) {
               error = 2;      /* some files couldn't add */
               goto err_exit;
       }

       close(fd);
       return;

err_exit:
       close(fd);
       err(error, "%s", image);
}

void
progress(const struct progress_arg *p)
{
#ifndef HAVE_NBTOOL_CONFIG_H
       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);
       }
#endif
}