date and time created 94/03/27 08:07:46 by bostic

[unix-history] / usr / src / sbin / mount / mount_ufs.c

/*-
* Copyright (c) 1993, 1994
*      The Regents of the University of California.  All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1993, 1994\n\
       The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)mount_ufs.c 8.1 (Berkeley) %G%";
#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 "mntopts.h"

void    ufs_usage __P((void));

static struct mntopt mopts[] = {
       MOPT_STDOPTS,
       MOPT_UPDATE,
       { NULL }
};

int
mount_ufs(argc, argv)
       int argc;
       char * const argv[];
{
       extern int optreset;
       struct ufs_args args;
       int ch, mntflags;
       char *fs_name;

       mntflags = 0;
       optind = optreset = 1;          /* Reset for parse of new argv. */
       while ((ch = getopt(argc, argv, "o:")) != EOF)
               switch (ch) {
               case 'o':
                       getmntopts(optarg, mopts, &mntflags);
                       break;
               case '?':
               default:
                       ufs_usage();
               }
       argc -= optind;
       argv += optind;

       if (argc != 2)
               ufs_usage();

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

#define DEFAULT_ROOTUID -2
       args.export.ex_root = DEFAULT_ROOTUID;
       if (mntflags & MNT_RDONLY)
               args.export.ex_flags = MNT_EXRDONLY;
       else
               args.export.ex_flags = 0;

       if (mount(MOUNT_UFS, fs_name, mntflags, &args) < 0) {
               (void)fprintf(stderr, "%s on %s: ", args.fspec, fs_name);
               switch (errno) {
               case EMFILE:
                       (void)fprintf(stderr, "mount table full.\n");
                       break;
               case EINVAL:
                       if (mntflags & MNT_UPDATE)
                               (void)fprintf(stderr,
                   "Specified device does not match mounted device.\n");
                       else 
                               (void)fprintf(stderr,
                                   "Incorrect super block.\n");
                       break;
               default:
                       (void)fprintf(stderr, "%s\n", strerror(errno));
                       break;
               }
               return (1);
       }
       return (0);
}

void
ufs_usage()
{
       (void)fprintf(stderr, "usage: mount_ufs [-o options] special node\n");
       exit(1);
}