mount_ntfs.c revision 101270
1/* 2 * Copyright (c) 1994 Christopher G. Demetriou 3 * Copyright (c) 1999 Semen Ustimenko 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD: head/sbin/mount_ntfs/mount_ntfs.c 101270 2002-08-03 16:03:21Z mux $ 32 * 33 */ 34 35#include <sys/cdefs.h> 36#include <sys/param.h> 37#define NTFS 38#include <sys/mount.h> 39#include <sys/stat.h> 40#include <fs/ntfs/ntfsmount.h> 41#include <ctype.h> 42#include <err.h> 43#include <grp.h> 44#include <pwd.h> 45#include <stdio.h> 46#include <stdlib.h> 47#include <string.h> 48#include <sysexits.h> 49#include <unistd.h> 50#include <libutil.h> 51 52#include "mntopts.h" 53 54static struct mntopt mopts[] = { 55 MOPT_STDOPTS, 56 { NULL } 57}; 58 59static gid_t a_gid(char *); 60static uid_t a_uid(char *); 61static mode_t a_mask(char *); 62static void usage(void) __dead2; 63 64static void load_u2wtable(struct ntfs_args *, char *); 65 66int 67main(argc, argv) 68 int argc; 69 char **argv; 70{ 71 struct ntfs_args args; 72 struct stat sb; 73 int c, mntflags, set_gid, set_uid, set_mask; 74 char *dev, *dir, mntpath[MAXPATHLEN]; 75 76 mntflags = set_gid = set_uid = set_mask = 0; 77 (void)memset(&args, '\0', sizeof(args)); 78 79 while ((c = getopt(argc, argv, "aiu:g:m:o:W:")) != -1) { 80 switch (c) { 81 case 'u': 82 args.uid = a_uid(optarg); 83 set_uid = 1; 84 break; 85 case 'g': 86 args.gid = a_gid(optarg); 87 set_gid = 1; 88 break; 89 case 'm': 90 args.mode = a_mask(optarg); 91 set_mask = 1; 92 break; 93 case 'i': 94 args.flag |= NTFS_MFLAG_CASEINS; 95 break; 96 case 'a': 97 args.flag |= NTFS_MFLAG_ALLNAMES; 98 break; 99 case 'o': 100 getmntopts(optarg, mopts, &mntflags, 0); 101 break; 102 case 'W': 103 load_u2wtable(&args, optarg); 104 args.flag |= NTFSMNT_U2WTABLE; 105 break; 106 case '?': 107 default: 108 usage(); 109 break; 110 } 111 } 112 113 if (optind + 2 != argc) 114 usage(); 115 116 dev = argv[optind]; 117 dir = argv[optind + 1]; 118 119 /* 120 * Resolve the mountpoint with realpath(3) and remove unnecessary 121 * slashes from the devicename if there are any. 122 */ 123 (void)checkpath(dir, mntpath); 124 (void)rmslashes(dev, dev); 125 126 args.fspec = dev; 127 args.export.ex_root = 65534; /* unchecked anyway on DOS fs */ 128 if (mntflags & MNT_RDONLY) 129 args.export.ex_flags = MNT_EXRDONLY; 130 else 131 args.export.ex_flags = 0; 132 if (!set_gid || !set_uid || !set_mask) { 133 if (stat(mntpath, &sb) == -1) 134 err(EX_OSERR, "stat %s", mntpath); 135 136 if (!set_uid) 137 args.uid = sb.st_uid; 138 if (!set_gid) 139 args.gid = sb.st_gid; 140 if (!set_mask) 141 args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 142 } 143 144 if (mount("ntfs", mntpath, mntflags, &args) < 0) 145 err(EX_OSERR, "%s", dev); 146 147 exit (0); 148} 149 150gid_t 151a_gid(s) 152 char *s; 153{ 154 struct group *gr; 155 char *gname; 156 gid_t gid; 157 158 if ((gr = getgrnam(s)) != NULL) 159 gid = gr->gr_gid; 160 else { 161 for (gname = s; *s && isdigit(*s); ++s); 162 if (!*s) 163 gid = atoi(gname); 164 else 165 errx(EX_NOUSER, "unknown group id: %s", gname); 166 } 167 return (gid); 168} 169 170uid_t 171a_uid(s) 172 char *s; 173{ 174 struct passwd *pw; 175 char *uname; 176 uid_t uid; 177 178 if ((pw = getpwnam(s)) != NULL) 179 uid = pw->pw_uid; 180 else { 181 for (uname = s; *s && isdigit(*s); ++s); 182 if (!*s) 183 uid = atoi(uname); 184 else 185 errx(EX_NOUSER, "unknown user id: %s", uname); 186 } 187 return (uid); 188} 189 190mode_t 191a_mask(s) 192 char *s; 193{ 194 int done, rv=0; 195 char *ep; 196 197 done = 0; 198 if (*s >= '0' && *s <= '7') { 199 done = 1; 200 rv = strtol(optarg, &ep, 8); 201 } 202 if (!done || rv < 0 || *ep) 203 errx(EX_USAGE, "invalid file mode: %s", s); 204 return (rv); 205} 206 207void 208usage() 209{ 210 fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] [-W u2wtable] bdev dir\n"); 211 exit(EX_USAGE); 212} 213 214void 215load_u2wtable (pargs, name) 216 struct ntfs_args *pargs; 217 char *name; 218{ 219 FILE *f; 220 int i, j, code[8]; 221 size_t line = 0; 222 char buf[128]; 223 char *fn, *s, *p; 224 225 if (*name == '/') 226 fn = name; 227 else { 228 snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name); 229 buf[127] = '\0'; 230 fn = buf; 231 } 232 if ((f = fopen(fn, "r")) == NULL) 233 err(EX_NOINPUT, "%s", fn); 234 p = NULL; 235 for (i = 0; i < 16; i++) { 236 do { 237 if (p != NULL) free(p); 238 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL) 239 errx(EX_DATAERR, "can't read u2w table row %d near line %d", i, line); 240 while (isspace((unsigned char)*s)) 241 s++; 242 } while (*s == '\0'); 243 if (sscanf(s, "%i%i%i%i%i%i%i%i", 244code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8) 245 errx(EX_DATAERR, "u2w table: missing item(s) in row %d, line %d", i, line); 246 for (j = 0; j < 8; j++) 247 pargs->u2w[i * 8 + j] = code[j]; 248 } 249 for (i = 0; i < 16; i++) { 250 do { 251 free(p); 252 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL) 253 errx(EX_DATAERR, "can't read d2u table row %d near line %d", i, line); 254 while (isspace((unsigned char)*s)) 255 s++; 256 } while (*s == '\0'); 257 if (sscanf(s, "%i%i%i%i%i%i%i%i", 258code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8) 259 errx(EX_DATAERR, "d2u table: missing item(s) in row %d, line %d", i, line); 260 for (j = 0; j < 8; j++) 261 /* pargs->d2u[i * 8 + j] = code[j] */; 262 } 263 for (i = 0; i < 16; i++) { 264 do { 265 free(p); 266 if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL) 267 errx(EX_DATAERR, "can't read u2d table row %d near line %d", i, line); 268 while (isspace((unsigned char)*s)) 269 s++; 270 } while (*s == '\0'); 271 if (sscanf(s, "%i%i%i%i%i%i%i%i", 272code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8) 273 errx(EX_DATAERR, "u2d table: missing item(s) in row %d, line %d", i, line); 274 for (j = 0; j < 8; j++) 275 /* pargs->u2d[i * 8 + j] = code[j] */; 276 } 277 free(p); 278 fclose(f); 279} 280 281