1 /* 2 * Copyright (c) 1994 Christopher G. Demetriou 3 * Copyright (c) 1999 Semen Ustimenko (semenu@FreeBSD.org) 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: src/sbin/mount_hpfs/mount_hpfs.c,v 1.1 1999/12/09 19:09:15 semenu Exp $ 32 * $DragonFly: src/sbin/mount_hpfs/mount_hpfs.c,v 1.8 2005/04/03 18:59:24 joerg Exp $ 33 */ 34 35 #include <sys/cdefs.h> 36 #include <sys/param.h> 37 #include <sys/mount.h> 38 #include <sys/stat.h> 39 #include <vfs/hpfs/hpfsmount.h> 40 #include <ctype.h> 41 #include <err.h> 42 #include <grp.h> 43 #include <pwd.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <sysexits.h> 48 #include <unistd.h> 49 50 #include "mntopts.h" 51 52 static struct mntopt mopts[] = { 53 MOPT_STDOPTS, 54 MOPT_NULL 55 }; 56 57 static gid_t a_gid(char *); 58 static uid_t a_uid(char *); 59 static mode_t a_mask(char *); 60 static void usage(void) __dead2; 61 static void load_u2wtable(struct hpfs_args *, char *); 62 63 int 64 main(int argc, char **argv) 65 { 66 struct hpfs_args args; 67 struct stat sb; 68 int c, mntflags, set_gid, set_uid, set_mask,error; 69 int forcerw = 0; 70 char *dev, *dir, ndir[MAXPATHLEN+1]; 71 struct vfsconf vfc; 72 73 mntflags = set_gid = set_uid = set_mask = 0; 74 memset(&args, '\0', sizeof(args)); 75 76 while ((c = getopt(argc, argv, "u:g:m:o:c:W:F")) != -1) { 77 switch (c) { 78 case 'F': 79 forcerw=1; 80 break; 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 'o': 94 getmntopts(optarg, mopts, &mntflags, 0); 95 break; 96 case 'W': 97 load_u2wtable(&args, optarg); 98 args.flags |= HPFSMNT_TABLES; 99 break; 100 case '?': 101 default: 102 usage(); 103 break; 104 } 105 } 106 107 if (optind + 2 != argc) 108 usage(); 109 110 if (!(mntflags & MNT_RDONLY) && !forcerw) { 111 warnx("Write support is BETA, you need -F flag to enable RW mount!"); 112 exit (111); 113 } 114 115 dev = argv[optind]; 116 dir = argv[optind + 1]; 117 if (dir[0] != '/') { 118 warnx("\"%s\" is a relative path", dir); 119 if (getcwd(ndir, sizeof(ndir)) == NULL) 120 err(EX_OSERR, "getcwd"); 121 strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1); 122 strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1); 123 dir = ndir; 124 warnx("using \"%s\" instead", dir); 125 } 126 127 args.fspec = dev; 128 args.export.ex_root = 65534; /* unchecked anyway on DOS fs */ 129 if (mntflags & MNT_RDONLY) 130 args.export.ex_flags = MNT_EXRDONLY; 131 else 132 args.export.ex_flags = 0; 133 134 if (!set_gid || !set_uid || !set_mask) { 135 if (stat(dir, &sb) == -1) 136 err(EX_OSERR, "stat %s", dir); 137 138 if (!set_uid) 139 args.uid = sb.st_uid; 140 if (!set_gid) 141 args.gid = sb.st_gid; 142 if (!set_mask) 143 args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 144 } 145 146 error = getvfsbyname("hpfs", &vfc); 147 if(error && vfsisloadable("hpfs")) { 148 if(vfsload("hpfs")) 149 err(EX_OSERR, "vfsload(hpfs)"); 150 endvfsent(); /* clear cache */ 151 error = getvfsbyname("hpfs", &vfc); 152 } 153 if (error) 154 errx(EX_OSERR, "hpfs filesystem is not available"); 155 156 if (mount(vfc.vfc_name, dir, mntflags, &args) < 0) 157 err(EX_OSERR, "%s", dev); 158 159 exit (0); 160 } 161 162 gid_t 163 a_gid(char *s) 164 { 165 struct group *gr; 166 char *gname; 167 gid_t gid; 168 169 if ((gr = getgrnam(s)) != NULL) 170 gid = gr->gr_gid; 171 else { 172 for (gname = s; *s && isdigit(*s); ++s); 173 if (!*s) 174 gid = atoi(gname); 175 else 176 errx(EX_NOUSER, "unknown group id: %s", gname); 177 } 178 return (gid); 179 } 180 181 uid_t 182 a_uid(char *s) 183 { 184 struct passwd *pw; 185 char *uname; 186 uid_t uid; 187 188 if ((pw = getpwnam(s)) != NULL) 189 uid = pw->pw_uid; 190 else { 191 for (uname = s; *s && isdigit(*s); ++s); 192 if (!*s) 193 uid = atoi(uname); 194 else 195 errx(EX_NOUSER, "unknown user id: %s", uname); 196 } 197 return (uid); 198 } 199 200 mode_t 201 a_mask(char *s) 202 { 203 int done, rv=0; 204 char *ep; 205 206 done = 0; 207 if (*s >= '0' && *s <= '7') { 208 done = 1; 209 rv = strtol(optarg, &ep, 8); 210 } 211 if (!done || rv < 0 || *ep) 212 errx(EX_USAGE, "invalid file mode: %s", s); 213 return (rv); 214 } 215 216 void 217 usage(void) 218 { 219 fprintf(stderr, "usage: mount_hpfs [-u user] [-g group] [-m mask] bdev dir\n"); 220 exit(EX_USAGE); 221 } 222 223 void 224 load_u2wtable (struct hpfs_args *pargs, char *name) 225 { 226 FILE *f; 227 int i, code; 228 char buf[128]; 229 char *fn; 230 231 if (*name == '/') 232 fn = name; 233 else { 234 snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name); 235 buf[127] = '\0'; 236 fn = buf; 237 } 238 if ((f = fopen(fn, "r")) == NULL) 239 err(EX_NOINPUT, "%s", fn); 240 for (i = 0; i < 128; i++) { 241 if (fscanf(f, "%i", &code) != 1) 242 errx(EX_DATAERR, "u2w: missing item number %d", i); 243 /* pargs->u2w[i] = code; */ 244 } 245 for (i = 0; i < 128; i++) { 246 if (fscanf(f, "%i", &code) != 1) 247 errx(EX_DATAERR, "d2u: missing item number %d", i); 248 pargs->d2u[i] = code; 249 } 250 for (i = 0; i < 128; i++) { 251 if (fscanf(f, "%i", &code) != 1) 252 errx(EX_DATAERR, "u2d: missing item number %d", i); 253 pargs->u2d[i] = code; 254 } 255 fclose(f); 256 } 257