340 lines
8.3 KiB
C
340 lines
8.3 KiB
C
/* $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[] =
|
|
"$FreeBSD$";
|
|
#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>
|
|
/* must be after stdio to declare fparseln */
|
|
#include <libutil.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sysexits.h>
|
|
#include <unistd.h>
|
|
|
|
#include "mntopts.h"
|
|
|
|
/*
|
|
* XXX - no way to specify "foo=<bar>"-type options; that's what we'd
|
|
* want for "-u", "-g", "-m", "-L", and "-W".
|
|
*/
|
|
static struct mntopt mopts[] = {
|
|
MOPT_STDOPTS,
|
|
MOPT_FORCE,
|
|
MOPT_SYNC,
|
|
MOPT_UPDATE,
|
|
#ifdef MSDOSFSMNT_GEMDOSFS
|
|
{ "gemdosfs", 0, MSDOSFSMNT_GEMDOSFS, 1 },
|
|
#endif
|
|
{ "shortnames", 0, MSDOSFSMNT_SHORTNAME, 1 },
|
|
{ "longnames", 0, MSDOSFSMNT_LONGNAME, 1 },
|
|
{ "nowin95", 0, MSDOSFSMNT_NOWIN95, 1 },
|
|
{ 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, mntpath[MAXPATHLEN];
|
|
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, &args.flags);
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind + 2 != argc)
|
|
usage();
|
|
|
|
dev = argv[optind];
|
|
dir = argv[optind + 1];
|
|
|
|
/*
|
|
* Resolve the mountpoint with realpath(3) and remove unnecessary
|
|
* slashes from the devicename if there are any.
|
|
*/
|
|
(void)checkpath(dir, mntpath);
|
|
(void)rmslashes(dev, dev);
|
|
|
|
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(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.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, mntpath, 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, j, code[8];
|
|
size_t line = 0;
|
|
char buf[128];
|
|
char *fn, *s, *p;
|
|
|
|
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);
|
|
p = NULL;
|
|
for (i = 0; i < 16; i++) {
|
|
do {
|
|
if (p != NULL) free(p);
|
|
if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
|
|
errx(EX_DATAERR, "can't read u2w table row %d near line %d", i, line);
|
|
while (isspace((unsigned char)*s))
|
|
s++;
|
|
} while (*s == '\0');
|
|
if (sscanf(s, "%i%i%i%i%i%i%i%i",
|
|
code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
|
|
errx(EX_DATAERR, "u2w table: missing item(s) in row %d, line %d", i, line);
|
|
for (j = 0; j < 8; j++)
|
|
pargs->u2w[i * 8 + j] = code[j];
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
do {
|
|
free(p);
|
|
if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
|
|
errx(EX_DATAERR, "can't read d2u table row %d near line %d", i, line);
|
|
while (isspace((unsigned char)*s))
|
|
s++;
|
|
} while (*s == '\0');
|
|
if (sscanf(s, "%i%i%i%i%i%i%i%i",
|
|
code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
|
|
errx(EX_DATAERR, "d2u table: missing item(s) in row %d, line %d", i, line);
|
|
for (j = 0; j < 8; j++)
|
|
pargs->d2u[i * 8 + j] = code[j];
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
do {
|
|
free(p);
|
|
if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
|
|
errx(EX_DATAERR, "can't read u2d table row %d near line %d", i, line);
|
|
while (isspace((unsigned char)*s))
|
|
s++;
|
|
} while (*s == '\0');
|
|
if (sscanf(s, "%i%i%i%i%i%i%i%i",
|
|
code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
|
|
errx(EX_DATAERR, "u2d table: missing item(s) in row %d, line %d", i, line);
|
|
for (j = 0; j < 8; j++)
|
|
pargs->u2d[i * 8 + j] = code[j];
|
|
}
|
|
free(p);
|
|
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);
|
|
}
|
|
}
|