1 /* $NetBSD: mount_msdos.c,v 1.18 1997/09/16 12:24:18 lukem Exp $ */
4 * Copyright (c) 1994 Christopher G. Demetriou
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Christopher G. Demetriou.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sbin/mount_msdos/mount_msdos.c,v 1.19.2.1 2000/07/20 10:35:13 kris Exp $
33 * $DragonFly: src/sbin/mount_msdos/mount_msdos.c,v 1.2 2003/06/17 04:27:33 dillon Exp $
36 #include <sys/param.h>
37 #include <sys/mount.h>
40 #include <msdosfs/msdosfsmount.h>
48 /* must be after stdio to declare fparseln */
58 * XXX - no way to specify "foo=<bar>"-type options; that's what we'd
59 * want for "-u", "-g", "-m", "-L", and "-W".
61 static struct mntopt mopts[] = {
66 #ifdef MSDOSFSMNT_GEMDOSFS
67 { "gemdosfs", 0, MSDOSFSMNT_GEMDOSFS, 1 },
69 { "shortnames", 0, MSDOSFSMNT_SHORTNAME, 1 },
70 { "longnames", 0, MSDOSFSMNT_LONGNAME, 1 },
71 { "nowin95", 0, MSDOSFSMNT_NOWIN95, 1 },
75 static gid_t a_gid __P((char *));
76 static uid_t a_uid __P((char *));
77 static mode_t a_mask __P((char *));
78 static void usage __P((void)) __dead2;
79 static void load_u2wtable __P((struct msdosfs_args *, char *));
80 static void load_ultable __P((struct msdosfs_args *, char *));
87 struct msdosfs_args args;
89 int c, error, mntflags, set_gid, set_uid, set_mask;
90 char *dev, *dir, mntpath[MAXPATHLEN];
93 mntflags = set_gid = set_uid = set_mask = 0;
94 (void)memset(&args, '\0', sizeof(args));
95 args.magic = MSDOSFS_ARGSMAGIC;
97 while ((c = getopt(argc, argv, "sl9u:g:m:o:L:W:")) != -1) {
99 #ifdef MSDOSFSMNT_GEMDOSFS
101 args.flags |= MSDOSFSMNT_GEMDOSFS;
105 args.flags |= MSDOSFSMNT_SHORTNAME;
108 args.flags |= MSDOSFSMNT_LONGNAME;
111 args.flags |= MSDOSFSMNT_NOWIN95;
114 args.uid = a_uid(optarg);
118 args.gid = a_gid(optarg);
122 args.mask = a_mask(optarg);
126 load_ultable(&args, optarg);
127 args.flags |= MSDOSFSMNT_ULTABLE;
130 load_u2wtable(&args, optarg);
131 args.flags |= MSDOSFSMNT_U2WTABLE;
134 getmntopts(optarg, mopts, &mntflags, &args.flags);
143 if (optind + 2 != argc)
147 dir = argv[optind + 1];
150 * Resolve the mountpoint with realpath(3) and remove unnecessary
151 * slashes from the devicename if there are any.
153 (void)checkpath(dir, mntpath);
154 (void)rmslashes(dev, dev);
157 args.export.ex_root = -2; /* unchecked anyway on DOS fs */
158 if (mntflags & MNT_RDONLY)
159 args.export.ex_flags = MNT_EXRDONLY;
161 args.export.ex_flags = 0;
162 if (!set_gid || !set_uid || !set_mask) {
163 if (stat(mntpath, &sb) == -1)
164 err(EX_OSERR, "stat %s", mntpath);
167 args.uid = sb.st_uid;
169 args.gid = sb.st_gid;
171 args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
174 error = getvfsbyname("msdos", &vfc);
175 if (error && vfsisloadable("msdos")) {
176 if (vfsload("msdos"))
177 err(EX_OSERR, "vfsload(msdos)");
178 endvfsent(); /* clear cache */
179 error = getvfsbyname("msdos", &vfc);
182 errx(EX_OSERR, "msdos filesystem is not available");
184 if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
185 err(EX_OSERR, "%s", dev);
198 if ((gr = getgrnam(s)) != NULL)
201 for (gname = s; *s && isdigit(*s); ++s);
205 errx(EX_NOUSER, "unknown group id: %s", gname);
218 if ((pw = getpwnam(s)) != NULL)
221 for (uname = s; *s && isdigit(*s); ++s);
225 errx(EX_NOUSER, "unknown user id: %s", uname);
239 if (*s >= '0' && *s <= '7') {
241 rv = strtol(optarg, &ep, 8);
243 if (!done || rv < 0 || *ep)
244 errx(EX_USAGE, "invalid file mode: %s", s);
251 fprintf(stderr, "%s\n%s\n",
252 "usage: mount_msdos [-o options] [-u user] [-g group] [-m mask]",
253 " [-s] [-l] [-9] [-L locale] [-W table] bdev dir");
258 load_u2wtable (pargs, name)
259 struct msdosfs_args *pargs;
271 snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name);
275 if ((f = fopen(fn, "r")) == NULL)
276 err(EX_NOINPUT, "%s", fn);
278 for (i = 0; i < 16; i++) {
280 if (p != NULL) free(p);
281 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
282 errx(EX_DATAERR, "can't read u2w table row %d near line %d", i, line);
283 while (isspace((unsigned char)*s))
285 } while (*s == '\0');
286 if (sscanf(s, "%i%i%i%i%i%i%i%i",
287 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
288 errx(EX_DATAERR, "u2w table: missing item(s) in row %d, line %d", i, line);
289 for (j = 0; j < 8; j++)
290 pargs->u2w[i * 8 + j] = code[j];
292 for (i = 0; i < 16; i++) {
295 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
296 errx(EX_DATAERR, "can't read d2u table row %d near line %d", i, line);
297 while (isspace((unsigned char)*s))
299 } while (*s == '\0');
300 if (sscanf(s, "%i%i%i%i%i%i%i%i",
301 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
302 errx(EX_DATAERR, "d2u table: missing item(s) in row %d, line %d", i, line);
303 for (j = 0; j < 8; j++)
304 pargs->d2u[i * 8 + j] = code[j];
306 for (i = 0; i < 16; i++) {
309 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
310 errx(EX_DATAERR, "can't read u2d table row %d near line %d", i, line);
311 while (isspace((unsigned char)*s))
313 } while (*s == '\0');
314 if (sscanf(s, "%i%i%i%i%i%i%i%i",
315 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
316 errx(EX_DATAERR, "u2d table: missing item(s) in row %d, line %d", i, line);
317 for (j = 0; j < 8; j++)
318 pargs->u2d[i * 8 + j] = code[j];
325 load_ultable (pargs, name)
326 struct msdosfs_args *pargs;
331 if (setlocale(LC_CTYPE, name) == NULL)
332 err(EX_CONFIG, "%s", name);
333 for (i = 0; i < 128; i++) {
334 pargs->ul[i] = tolower(i | 0x80);
335 pargs->lu[i] = toupper(i | 0x80);