c534bd449e
that ext2fs in the kernel supports async mounts. ext2fs used to effectively force the -async flag on. -async for ext2fs only gives async (more precisely, delayed) writes for inode updates, so it is barely worth using even when it is safe.
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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/*
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static char sccsid[] = "@(#)mount_lfs.c 8.3 (Berkeley) 3/27/94";
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*/
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static const char rcsid[] =
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"$FreeBSD$";
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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/uio.h>
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#include <err.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 <sysexits.h>
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#include <unistd.h>
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#include "mntopts.h"
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struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_ASYNC,
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MOPT_FORCE,
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MOPT_SYNC,
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MOPT_UPDATE,
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{ NULL }
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};
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static void usage(void) __dead2;
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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struct iovec iov[6];
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int ch, mntflags;
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char *fs_name, *options, *fspec, mntpath[MAXPATHLEN];
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options = NULL;
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mntflags = 0;
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while ((ch = getopt(argc, argv, "o:")) != -1)
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switch (ch) {
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case 'o':
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getmntopts(optarg, mopts, &mntflags, 0);
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc != 2)
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usage();
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fspec = argv[0]; /* the name of the device file */
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fs_name = argv[1]; /* the mount point */
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/*
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* Resolve the mountpoint with realpath(3) and remove unnecessary
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* slashes from the devicename if there are any.
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*/
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(void)checkpath(fs_name, mntpath);
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(void)rmslashes(fspec, fspec);
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iov[0].iov_base = "fstype";
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iov[0].iov_len = sizeof("fstype");
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iov[1].iov_base = "ext2fs";
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iov[1].iov_len = strlen(iov[1].iov_base) + 1;
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iov[2].iov_base = "fspath";
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iov[2].iov_len = sizeof("fspath");
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iov[3].iov_base = mntpath;
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iov[3].iov_len = strlen(mntpath) + 1;
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iov[4].iov_base = "from";
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iov[4].iov_len = sizeof("from");
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iov[5].iov_base = fspec;
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iov[5].iov_len = strlen(fspec) + 1;
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if (nmount(iov, 6, mntflags) < 0)
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err(EX_OSERR, "%s", fspec);
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exit(0);
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}
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void
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usage()
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{
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(void)fprintf(stderr,
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"usage: mount_ext2fs [-o options] special node\n");
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exit(EX_USAGE);
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}
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