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freebsd/sbin/mount_ntfs/mount_ntfs.c
2012-01-28 13:41:34 +00:00

281 lines
6.7 KiB
C

/*
* Copyright (c) 1994 Christopher G. Demetriou
* Copyright (c) 1999 Semen Ustimenko
* 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 Christopher G. Demetriou.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#define NTFS
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/module.h>
#include <sys/iconv.h>
#include <sys/linker.h>
#include <fs/ntfs/ntfsmount.h>
#include <ctype.h>
#include <err.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <libutil.h>
#include "mntopts.h"
#define TRANSITION_PERIOD_HACK
static struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_END
};
static gid_t a_gid(char *);
static uid_t a_uid(char *);
static mode_t a_mask(char *);
static void usage(void) __dead2;
static int set_charset(struct ntfs_args *);
int
main(int argc, char *argv[])
{
struct ntfs_args args;
struct stat sb;
int c, mntflags, set_gid, set_uid, set_mask;
char *dev, *dir, mntpath[MAXPATHLEN];
mntflags = set_gid = set_uid = set_mask = 0;
(void)memset(&args, '\0', sizeof(args));
args.cs_ntfs = NULL;
args.cs_local = NULL;
#ifdef TRANSITION_PERIOD_HACK
while ((c = getopt(argc, argv, "aiu:g:m:o:C:W:")) != -1) {
#else
while ((c = getopt(argc, argv, "aiu:g:m:o:C:")) != -1) {
#endif
switch (c) {
case 'u':
args.uid = a_uid(optarg);
set_uid = 1;
break;
case 'g':
args.gid = a_gid(optarg);
set_gid = 1;
break;
case 'm':
args.mode = a_mask(optarg);
set_mask = 1;
break;
case 'i':
args.flag |= NTFS_MFLAG_CASEINS;
break;
case 'a':
args.flag |= NTFS_MFLAG_ALLNAMES;
break;
case 'o':
getmntopts(optarg, mopts, &mntflags, 0);
break;
case 'C':
args.cs_local = malloc(ICONV_CSNMAXLEN);
if (args.cs_local == NULL)
err(EX_OSERR, "malloc()");
strncpy(args.cs_local,
kiconv_quirkcs(optarg, KICONV_VENDOR_MICSFT),
ICONV_CSNMAXLEN);
break;
#ifdef TRANSITION_PERIOD_HACK
case 'W':
args.cs_local = malloc(ICONV_CSNMAXLEN);
if (args.cs_local == NULL)
err(EX_OSERR, "malloc()");
if (strcmp(optarg, "iso22dos") == 0) {
strcpy(args.cs_local, "ISO8859-2");
} else if (strcmp(optarg, "iso72dos") == 0) {
strcpy(args.cs_local, "ISO8859-7");
} else if (strcmp(optarg, "koi2dos") == 0) {
strcpy(args.cs_local, "KOI8-R");
} else if (strcmp(optarg, "koi8u2dos") == 0) {
strcpy(args.cs_local, "KOI8-U");
} else {
err(EX_NOINPUT, "%s", optarg);
}
break;
#endif /* TRANSITION_PERIOD_HACK */
case '?':
default:
usage();
break;
}
}
if (optind + 2 != argc)
usage();
dev = argv[optind];
dir = argv[optind + 1];
if (args.cs_local) {
if (set_charset(&args) == -1)
err(EX_OSERR, "ntfs_iconv");
args.flag |= NTFS_MFLAG_KICONV;
/*
* XXX
* Force to be MNT_RDONLY,
* since only reading is supported right now,
*/
mntflags |= MNT_RDONLY;
}
/*
* Resolve the mountpoint with realpath(3) and remove unnecessary
* slashes from the devicename if there are any.
*/
if (checkpath(dir, mntpath) != 0)
err(EX_USAGE, "%s", mntpath);
(void)rmslashes(dev, dev);
args.fspec = dev;
args.export.ex_root = 65534; /* unchecked anyway on DOS fs */
if (mntflags & MNT_RDONLY)
args.export.ex_flags = MNT_EXRDONLY;
else
args.export.ex_flags = 0;
if (!set_gid || !set_uid || !set_mask) {
if (stat(mntpath, &sb) == -1)
err(EX_OSERR, "stat %s", mntpath);
if (!set_uid)
args.uid = sb.st_uid;
if (!set_gid)
args.gid = sb.st_gid;
if (!set_mask)
args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
}
if (mount("ntfs", mntpath, mntflags, &args) < 0)
err(EX_OSERR, "%s", dev);
exit (0);
}
gid_t
a_gid(char *s)
{
struct group *gr;
char *gname;
gid_t gid;
if ((gr = getgrnam(s)) != NULL)
gid = gr->gr_gid;
else {
for (gname = s; *s && isdigit(*s); ++s);
if (!*s)
gid = atoi(gname);
else
errx(EX_NOUSER, "unknown group id: %s", gname);
}
return (gid);
}
uid_t
a_uid(char *s)
{
struct passwd *pw;
char *uname;
uid_t uid;
if ((pw = getpwnam(s)) != NULL)
uid = pw->pw_uid;
else {
for (uname = s; *s && isdigit(*s); ++s);
if (!*s)
uid = atoi(uname);
else
errx(EX_NOUSER, "unknown user id: %s", uname);
}
return (uid);
}
mode_t
a_mask(char *s)
{
int done, rv=0;
char *ep;
done = 0;
if (*s >= '0' && *s <= '7') {
done = 1;
rv = strtol(optarg, &ep, 8);
}
if (!done || rv < 0 || *ep)
errx(EX_USAGE, "invalid file mode: %s", s);
return (rv);
}
void
usage(void)
{
#ifdef TRANSITION_PERIOD_HACK
fprintf(stderr, "%s\n%s\n",
"usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask]",
" [-C charset] [-W u2wtable] special node");
#else
fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] [-C charset] special node\n");
#endif
exit(EX_USAGE);
}
int
set_charset(struct ntfs_args *pargs)
{
int error;
if (modfind("ntfs_iconv") < 0)
if (kldload("ntfs_iconv") < 0 || modfind("ntfs_iconv") < 0) {
warnx( "cannot find or load \"ntfs_iconv\" kernel module");
return (-1);
}
if ((pargs->cs_ntfs = malloc(ICONV_CSNMAXLEN)) == NULL)
return (-1);
strncpy(pargs->cs_ntfs, ENCODING_UNICODE, ICONV_CSNMAXLEN);
error = kiconv_add_xlat16_cspairs(pargs->cs_ntfs, pargs->cs_local);
if (error)
return (-1);
return (0);
}