/* $NetBSD: mount_msdos.c,v 1.18 1997/09/16 12:24:18 lukem Exp $ */
/*
* Copyright (c) 1994 Christopher G. Demetriou
* 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.
*/
#ifndef lint
static const char rcsid[] =
"$Id: mount_msdos.c,v 1.14 1998/02/23 16:49:16 ache Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <msdosfs/msdosfsmount.h>
#include <ctype.h>
#include <err.h>
#include <grp.h>
#include <locale.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "mntopts.h"
static struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_FORCE,
MOPT_SYNC,
MOPT_UPDATE,
{ NULL }
};
static gid_t a_gid __P((char *));
static uid_t a_uid __P((char *));
static mode_t a_mask __P((char *));
static void usage __P((void)) __dead2;
static void load_u2wtable __P((struct msdosfs_args *, char *));
static void load_ultable __P((struct msdosfs_args *, char *));
int
main(argc, argv)
int argc;
char **argv;
{
struct msdosfs_args args;
struct stat sb;
int c, error, mntflags, set_gid, set_uid, set_mask;
char *dev, *dir, ndir[MAXPATHLEN+1];
struct vfsconf vfc;
mntflags = set_gid = set_uid = set_mask = 0;
(void)memset(&args, '\0', sizeof(args));
args.magic = MSDOSFS_ARGSMAGIC;
while ((c = getopt(argc, argv, "sl9u:g:m:o:L:W:")) != -1) {
switch (c) {
#ifdef MSDOSFSMNT_GEMDOSFS
case 'G':
args.flags |= MSDOSFSMNT_GEMDOSFS;
break;
#endif
case 's':
args.flags |= MSDOSFSMNT_SHORTNAME;
break;
case 'l':
args.flags |= MSDOSFSMNT_LONGNAME;
break;
case '9':
args.flags |= MSDOSFSMNT_NOWIN95;
break;
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.mask = a_mask(optarg);
set_mask = 1;
break;
case 'L':
load_ultable(&args, optarg);
args.flags |= MSDOSFSMNT_ULTABLE;
break;
case 'W':
load_u2wtable(&args, optarg);
args.flags |= MSDOSFSMNT_U2WTABLE;
break;
case 'o':
getmntopts(optarg, mopts, &mntflags, 0);
break;
case '?':
default:
usage();
break;
}
}
if (optind + 2 != argc)
usage();
dev = argv[optind];
dir = argv[optind + 1];
if (dir[0] != '/') {
warnx("\"%s\" is a relative path", dir);
if (getcwd(ndir, sizeof(ndir)) == NULL)
err(EX_OSERR, "getcwd");
strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1);
strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1);
dir = ndir;
warnx("using \"%s\" instead", dir);
}
args.fspec = dev;
args.export.ex_root = -2; /* 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(dir, &sb) == -1)
err(EX_OSERR, "stat %s", dir);
if (!set_uid)
args.uid = sb.st_uid;
if (!set_gid)
args.gid = sb.st_gid;
if (!set_mask)
args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
}
error = getvfsbyname("msdos", &vfc);
if (error && vfsisloadable("msdos")) {
if (vfsload("msdos"))
err(EX_OSERR, "vfsload(msdos)");
endvfsent(); /* clear cache */
error = getvfsbyname("msdos", &vfc);
}
if (error)
errx(EX_OSERR, "msdos filesystem is not available");
if (mount(vfc.vfc_name, dir, mntflags, &args) < 0)
err(EX_OSERR, "%s", dev);
exit (0);
}
gid_t
a_gid(s)
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(s)
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(s)
char *s;
{
int done, rv;
char *ep;
done = 0;
rv = -1;
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()
{
fprintf(stderr, "%s\n%s\n",
"usage: mount_msdos [-o options] [-u user] [-g group] [-m mask]",
" [-s] [-l] [-9] [-L locale] [-W table] bdev dir");
exit(EX_USAGE);
}
void
load_u2wtable (pargs, name)
struct msdosfs_args *pargs;
char *name;
{
FILE *f;
int i, code;
char buf[128];
char *fn;
if (*name == '/')
fn = name;
else {
snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name);
buf[127] = '\0';
fn = buf;
}
if ((f = fopen(fn, "r")) == NULL)
err(EX_NOINPUT, "%s", fn);
for (i = 0; i < 128; i++) {
if (fscanf(f, "%i", &code) != 1)
errx(EX_DATAERR, "u2w: missing item number %d", i);
pargs->u2w[i] = code;
}
for (i = 0; i < 128; i++) {
if (fscanf(f, "%i", &code) != 1)
errx(EX_DATAERR, "d2u: missing item number %d", i);
pargs->d2u[i] = code;
}
for (i = 0; i < 128; i++) {
if (fscanf(f, "%i", &code) != 1)
errx(EX_DATAERR, "u2d: missing item number %d", i);
pargs->u2d[i] = code;
}
fclose(f);
}
void
load_ultable (pargs, name)
struct msdosfs_args *pargs;
char *name;
{
int i;
if (setlocale(LC_CTYPE, name) == NULL)
err(EX_CONFIG, name);
for (i = 0; i < 128; i++) {
pargs->ul[i] = tolower(i | 0x80);
pargs->lu[i] = toupper(i | 0x80);
}
}
