178 lines
4.3 KiB
C
178 lines
4.3 KiB
C
/* $NetBSD: mount_nilfs.c,v 1.4 2019/10/16 21:52:22 maya Exp $ */
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/*
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* Copyright (c) 2008, 2009 Reinoud Zandijk
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: mount_nilfs.c,v 1.4 2019/10/16 21:52:22 maya Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <util.h>
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/* mount specific options */
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#include <fs/nilfs/nilfs_mount.h>
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#include <mntopts.h>
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#include "mountprog.h"
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#include "mount_nilfs.h"
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/* options to pass on to the `mount' call */
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static const struct mntopt mopts[] = {
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MOPT_STDOPTS, /* `normal' options */
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MOPT_ASYNC, /* default */
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MOPT_NOATIME, /* dont update access times */
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MOPT_RELATIME, /* update access times on change*/
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MOPT_UPDATE, /* not yet supported */
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MOPT_GETARGS, /* printing */
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MOPT_NULL,
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};
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/* prototypes */
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static void usage(void) __dead;
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/* code */
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static void
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usage(void)
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{
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(void)fprintf(stderr, "Usage: %s [-o options] [-c cpno] "
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"[-t gmtoff] special node\n", getprogname());
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exit(EXIT_FAILURE);
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}
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#ifndef MOUNT_NOMAIN
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int
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main(int argc, char **argv)
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{
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setprogname(argv[0]);
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return mount_nilfs(argc, argv);
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}
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#endif
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/* main routine */
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void
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mount_nilfs_parseargs(int argc, char **argv,
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struct nilfs_args *args, int *mntflags,
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char *canon_dev, char *canon_dir)
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{
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struct tm *tm;
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time_t now;
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int ch, set_gmtoff;
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mntoptparse_t mp;
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/* initialise */
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(void)memset(args, 0, sizeof(*args));
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set_gmtoff = *mntflags = 0;
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while ((ch = getopt(argc, argv, "c:o:t:")) != -1) {
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switch (ch) {
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case 'o' :
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/* process generic mount options */
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mp = getmntopts(optarg, mopts, mntflags, 0);
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if (mp == NULL)
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err(EXIT_FAILURE, "getmntopts");
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freemntopts(mp);
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break;
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case 'c' :
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args->cpno = a_num(optarg, "checkpoint number");
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break;
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case 't' :
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args->gmtoff = a_num(optarg, "gmtoff");
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set_gmtoff = 1;
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break;
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default :
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usage();
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/* NOTREACHED */
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}
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}
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if (optind + 2 != argc)
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usage();
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if (!set_gmtoff) {
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/* use user's time zone as default */
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(void)time(&now);
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tm = localtime(&now);
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args->gmtoff = tm->tm_gmtoff;
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}
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/* get device and directory specifier */
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pathadj(argv[optind], canon_dev);
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pathadj(argv[optind+1], canon_dir);
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args->version = NILFSMNT_VERSION;
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args->fspec = canon_dev;
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}
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int
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mount_nilfs(int argc, char *argv[])
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{
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struct nilfs_args args;
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char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
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int mntflags;
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mount_nilfs_parseargs(argc, argv, &args, &mntflags, canon_dev, canon_dir);
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/* mount it! :) */
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if (mount(MOUNT_NILFS, canon_dir, mntflags, &args, sizeof args) == -1)
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err(EXIT_FAILURE, "Cannot mount %s on %s", canon_dev,canon_dir);
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if (mntflags & MNT_GETARGS) {
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char buf[1024];
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(void)snprintb(buf, sizeof(buf), NILFSMNT_BITS,
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(uint64_t)args.nilfsmflags);
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(void)printf("gmtoffset = %d, cpno = %"PRIu64", flags = %s\n",
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args.gmtoff, args.cpno, buf);
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}
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return EXIT_SUCCESS;
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}
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