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mount_ntfs.c revision 1.3
      1 /*	$NetBSD: mount_ntfs.c,v 1.3 1999/06/25 19:28:37 perseant 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 1.3 1999/06/25 19:28:37 perseant Exp $");
     39 #endif
     40 
     41 #include <sys/cdefs.h>
     42 #include <sys/param.h>
     43 #define NTFS
     44 #include <sys/mount.h>
     45 #include <sys/stat.h>
     46 #include <ntfs/ntfsmount.h>
     47 #include <ctype.h>
     48 #include <err.h>
     49 #include <grp.h>
     50 #include <pwd.h>
     51 #include <stdio.h>
     52 #include <stdlib.h>
     53 #include <string.h>
     54 #include <sysexits.h>
     55 #include <unistd.h>
     56 
     57 #include "mntopts.h"
     58 
     59 static struct mntopt mopts[] = {
     60 	MOPT_STDOPTS,
     61 	{ NULL }
     62 };
     63 
     64 #ifndef __dead2
     65 #define __dead2 __attribute__((__noreturn__))
     66 #endif
     67 
     68 static gid_t	a_gid __P((char *));
     69 static uid_t	a_uid __P((char *));
     70 static mode_t	a_mask __P((char *));
     71 static void	usage __P((void)) __dead2;
     72 
     73 int main __P((int, char **));
     74 
     75 int
     76 main(argc, argv)
     77 	int argc;
     78 	char **argv;
     79 {
     80 	struct ntfs_args args;
     81 	struct stat sb;
     82 	int c, mntflags, set_gid, set_uid, set_mask;
     83 	char *dev, *dir, ndir[MAXPATHLEN+1];
     84 #ifdef __FreeBSD__
     85 #if __FreeBSD_version >= 300000
     86 	struct vfsconf vfc;
     87 #else
     88 	struct vfsconf *vfc;
     89 #endif
     90 #endif
     91 
     92 	mntflags = set_gid = set_uid = set_mask = 0;
     93 	(void)memset(&args, '\0', sizeof(args));
     94 
     95 	while ((c = getopt(argc, argv, "aiu:g:m:o:")) !=  -1) {
     96 		switch (c) {
     97 		case 'u':
     98 			args.uid = a_uid(optarg);
     99 			set_uid = 1;
    100 			break;
    101 		case 'g':
    102 			args.gid = a_gid(optarg);
    103 			set_gid = 1;
    104 			break;
    105 		case 'm':
    106 			args.mode = a_mask(optarg);
    107 			set_mask = 1;
    108 			break;
    109 		case 'i':
    110 			args.flag |= NTFS_MFLAG_CASEINS;
    111 			break;
    112 		case 'a':
    113 			args.flag |= NTFS_MFLAG_ALLNAMES;
    114 			break;
    115 		case 'o':
    116 			getmntopts(optarg, mopts, &mntflags, 0);
    117 			break;
    118 		case '?':
    119 		default:
    120 			usage();
    121 			break;
    122 		}
    123 	}
    124 
    125 	if (optind + 2 != argc)
    126 		usage();
    127 
    128 	dev = argv[optind];
    129 	dir = argv[optind + 1];
    130 	if (dir[0] != '/') {
    131 		warnx("\"%s\" is a relative path", dir);
    132 		if (getcwd(ndir, sizeof(ndir)) == NULL)
    133 			err(EX_OSERR, "getcwd");
    134 		strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1);
    135 		strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1);
    136 		dir = ndir;
    137 		warnx("using \"%s\" instead", dir);
    138 	}
    139 
    140 	args.fspec = dev;
    141 	args.export.ex_root = 65534;	/* unchecked anyway on DOS fs */
    142 	if (mntflags & MNT_RDONLY)
    143 		args.export.ex_flags = MNT_EXRDONLY;
    144 	else
    145 		args.export.ex_flags = 0;
    146 	if (!set_gid || !set_uid || !set_mask) {
    147 		if (stat(dir, &sb) == -1)
    148 			err(EX_OSERR, "stat %s", dir);
    149 
    150 		if (!set_uid)
    151 			args.uid = sb.st_uid;
    152 		if (!set_gid)
    153 			args.gid = sb.st_gid;
    154 		if (!set_mask)
    155 			args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
    156 	}
    157 #ifdef __FreeBSD__
    158 #if __FreeBSD_version >= 300000
    159 	c = getvfsbyname("ntfs", &vfc);
    160 	if(c && vfsisloadable("ntfs")) {
    161 		if(vfsload("ntfs"))
    162 #else
    163 	vfc = getvfsbyname("ntfs");
    164 	if(!vfc && vfsisloadable("ntfs")) {
    165 		if(vfsload("ntfs"))
    166 #endif
    167 			err(EX_OSERR, "vfsload(ntfs)");
    168 		endvfsent();	/* clear cache */
    169 #if __FreeBSD_version >= 300000
    170 		c = getvfsbyname("ntfs", &vfc);
    171 #else
    172 		vfc = getvfsbyname("ntfs");
    173 #endif
    174 	}
    175 #if __FreeBSD_version >= 300000
    176 	if (c)
    177 #else
    178 	if (!vfc)
    179 #endif
    180 		errx(EX_OSERR, "ntfs filesystem is not available");
    181 
    182 #if __FreeBSD_version >= 300000
    183 	if (mount(vfc.vfc_name, dir, mntflags, &args) < 0)
    184 #else
    185 	if (mount(vfc->vfc_index, dir, mntflags, &args) < 0)
    186 #endif
    187 #else
    188 	if (mount(MOUNT_NTFS, dir, mntflags, &args) < 0)
    189 #endif
    190 		err(EX_OSERR, "%s on %s", dev, dir);
    191 
    192 	exit (0);
    193 }
    194 
    195 gid_t
    196 a_gid(s)
    197 	char *s;
    198 {
    199 	struct group *gr;
    200 	char *gname;
    201 	gid_t gid;
    202 
    203 	if ((gr = getgrnam(s)) != NULL)
    204 		gid = gr->gr_gid;
    205 	else {
    206 		for (gname = s; *s && isdigit(*s); ++s);
    207 		if (!*s)
    208 			gid = atoi(gname);
    209 		else
    210 			errx(EX_NOUSER, "unknown group id: %s", gname);
    211 	}
    212 	return (gid);
    213 }
    214 
    215 uid_t
    216 a_uid(s)
    217 	char *s;
    218 {
    219 	struct passwd *pw;
    220 	char *uname;
    221 	uid_t uid;
    222 
    223 	if ((pw = getpwnam(s)) != NULL)
    224 		uid = pw->pw_uid;
    225 	else {
    226 		for (uname = s; *s && isdigit(*s); ++s);
    227 		if (!*s)
    228 			uid = atoi(uname);
    229 		else
    230 			errx(EX_NOUSER, "unknown user id: %s", uname);
    231 	}
    232 	return (uid);
    233 }
    234 
    235 mode_t
    236 a_mask(s)
    237 	char *s;
    238 {
    239 	int done, rv=0;
    240 	char *ep;
    241 
    242 	done = 0;
    243 	if (*s >= '0' && *s <= '7') {
    244 		done = 1;
    245 		rv = strtol(optarg, &ep, 8);
    246 	}
    247 	if (!done || rv < 0 || *ep)
    248 		errx(EX_USAGE, "invalid file mode: %s", s);
    249 	return (rv);
    250 }
    251 
    252 void
    253 usage()
    254 {
    255 	fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] bdev dir\n");
    256 	exit(EX_USAGE);
    257 }
    258