sbin/mount_ntfs/mount_ntfs.c

   1 /* $NetBSD: mount_ntfs.c,v 1.21 2008/08/05 20:57:45 pooka Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994 Christopher G. Demetriou
   5  * Copyright (c) 1999 Semen Ustimenko
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Christopher G. Demetriou.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  * Id: mount_ntfs.c,v 1.1.1.1 1999/02/03 03:51:19 semenu Exp
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 __RCSID("$NetBSD: mount_ntfs.c,v 1.21 2008/08/05 20:57:45 pooka Exp $");
  39 #endif
  40
  41 #include <sys/param.h>
  42 #include <sys/mount.h>
  43 #include <sys/stat.h>
  44 #include <ntfs/ntfsmount.h>
  45 #include <err.h>
  46 #include <grp.h>
  47 #include <pwd.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <string.h>
  51 #include <sysexits.h>
  52 #include <unistd.h>
  53 #include <util.h>
  54
  55 #include <mntopts.h>
  56
  57 #include "mountprog.h"
  58 #include "mount_ntfs.h"
  59
  60 static const struct mntopt mopts[] = {
  61         MOPT_STDOPTS,
  62         MOPT_GETARGS,
  63         MOPT_NULL,
  64 };
  65
  66 static void     usage(void) __dead;
  67
  68 #ifndef MOUNT_NOMAIN
  69 int
  70 main(int argc, char **argv)
  71 {
  72
  73         setprogname(argv[0]);
  74         return mount_ntfs(argc, argv);
  75 }
  76 #endif
  77
  78 void
  79 mount_ntfs_parseargs(int argc, char **argv,
  80         struct ntfs_args *args, int *mntflags,
  81         char *canon_dev, char *canon_dir)
  82 {
  83         struct stat sb;
  84         int c, set_gid, set_uid, set_mask;
  85         char *dev, *dir;
  86         mntoptparse_t mp;
  87
  88         *mntflags = set_gid = set_uid = set_mask = 0;
  89         (void)memset(args, '\0', sizeof(*args));
  90
  91         while ((c = getopt(argc, argv, "aiu:g:m:o:")) !=  -1) {
  92                 switch (c) {
  93                 case 'u':
  94                         args->uid = a_uid(optarg);
  95                         set_uid = 1;
  96                         break;
  97                 case 'g':
  98                         args->gid = a_gid(optarg);
  99                         set_gid = 1;
 100                         break;
 101                 case 'm':
 102                         args->mode = a_mask(optarg);
 103                         set_mask = 1;
 104                         break;
 105                 case 'i':
 106                         args->flag |= NTFS_MFLAG_CASEINS;
 107                         break;
 108                 case 'a':
 109                         args->flag |= NTFS_MFLAG_ALLNAMES;
 110                         break;
 111                 case 'o':
 112                         mp = getmntopts(optarg, mopts, mntflags, 0);
 113                         if (mp == NULL)
 114                                 err(1, "getmntopts");
 115                         freemntopts(mp);
 116                         break;
 117                 case '?':
 118                 default:
 119                         usage();
 120                         break;
 121                 }
 122         }
 123
 124         if (optind + 2 != argc)
 125                 usage();
 126
 127         dev = argv[optind];
 128         dir = argv[optind + 1];
 129
 130         pathadj(dev, canon_dev);
 131         pathadj(dir, canon_dir);
 132
 133         args->fspec = canon_dev;
 134         if (!set_gid || !set_uid || !set_mask) {
 135                 if (stat(dir, &sb) == -1)
 136                         err(EX_OSERR, "stat %s", dir);
 137
 138                 if (!set_uid)
 139                         args->uid = sb.st_uid;
 140                 if (!set_gid)
 141                         args->gid = sb.st_gid;
 142                 if (!set_mask)
 143                         args->mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
 144         }
 145 }
 146
 147 int
 148 mount_ntfs(int argc, char *argv[])
 149 {
 150         struct ntfs_args args;
 151         int mntflags;
 152         char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
 153
 154         mount_ntfs_parseargs(argc, argv, &args, &mntflags,
 155             canon_dev, canon_dir);
 156
 157         if (mount(MOUNT_NTFS, canon_dir, mntflags, &args, sizeof args) == -1)
 158                 err(EX_OSERR, "%s on %s", canon_dev, canon_dir);
 159
 160         if (mntflags & MNT_GETARGS) {
 161                 char buf[1024];
 162                 (void)snprintb(buf, sizeof(buf), NTFS_MFLAG_BITS, args.flag);
 163                 printf("uid=%d, gid=%d, mode=0%o, flags=%s\n", args.uid,
 164                     args.gid, args.mode, buf);
 165         }
 166         exit (0);
 167 }
 168
 169 static void
 170 usage(void)
 171 {
 172         fprintf(stderr, "usage: %s [-a] [-i] [-u user] [-g group] [-m mask] "
 173             "bdev dir\n", getprogname());
 174         exit(EX_USAGE);
 175 }