BSD 4_4 release

[unix-history] / usr / src / sbin / mount_lfs / mount_lfs.c

/*-
* Copyright (c) 1993
*      The Regents of the University of California.  All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1993\n\
       The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)mount_lfs.c 8.1 (Berkeley) 6/8/93";
#endif /* not lint */

#include <sys/param.h>
#include <sys/mount.h>

#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "pathnames.h"

#define DEFAULT_ROOTUID -2      /* copied from mount's UFS code */

void usage __P((void));
void invoke_cleaner __P((char *));

int short_rds, cleaner_debug;

int
main(argc, argv)
       int argc;
       char *argv[];
{
       struct ufs_args args;
       int ch, mntflags;
       int noclean;
       char *fs_name;

       mntflags = noclean = 0;
       while ((ch = getopt(argc, argv, "F:nsd")) != EOF)
               switch(ch) {
               case 'F':
                       mntflags = atoi(optarg);
                       break;
               case 'n':
                       noclean = 1;
                       break;
               case 's':
                       short_rds = 1;
                       break;
               case 'd':
                       cleaner_debug = 1;
                       break;
               case '?':
               default:
                       usage();
               }
       argc -= optind;
       argv += optind;

       if (argc != 2)
               usage();

       args.fspec = argv[0];   /* the name of the device file */
       fs_name = argv[1];      /* the mount point */

       /* copied from mount's UFS code */
       args.exroot = DEFAULT_ROOTUID;
       if (mntflags & MNT_RDONLY)
               args.exflags = MNT_EXRDONLY;
       else
               args.exflags = 0;

       if (mount(MOUNT_LFS, fs_name, mntflags, &args)) {
               (void)fprintf(stderr, "mount_lfs: %s\n", strerror(errno));
               exit(1);
       }

       if (!noclean) {
               /*
                * invoke the lfs_cleanerd for this filesystem as its arg!
                */
               invoke_cleaner(fs_name);
               /* never returns */
       }

       exit(0);
}

void
usage()
{
       (void)fprintf(stderr,
           "usage: mount_lfs [ -nsd ] [ -F fsoptions ] device mount_point\n");
       exit(1);
}

void
invoke_cleaner(name)
       char *name;
{
       char *args[6], **ap = args;

       /* build the argument list */
       *ap++ = _PATH_LFS_CLEANERD;
       if (short_rds)
               *ap++ = "-s";
       if (cleaner_debug)
               *ap++ = "-d";
       *ap++ = name;
       *ap = NULL;

       execv(args[0], args);
       err(1, "exec of %x failed", _PATH_LFS_CLEANERD);
}