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 #if 0 62 static void load_u2wtable(struct hpfs_args *, char *); 63 #endif 64 65 int 66 main(int argc, char **argv) 67 { 68 struct hpfs_args args; 69 struct stat sb; 70 int c, mntflags, set_gid, set_uid, set_mask,error; 71 int forcerw = 0; 72 char *dev, *dir, ndir[MAXPATHLEN+1]; 73 struct vfsconf vfc; 74 75 mntflags = set_gid = set_uid = set_mask = 0; 76 memset(&args, '\0', sizeof(args)); 77 78 while ((c = getopt(argc, argv, "u:g:m:o:c:W:F")) != -1) { 79 switch (c) { 80 case 'F': 81 forcerw=1; 82 break; 83 case 'u': 84 args.uid = a_uid(optarg); 85 set_uid = 1; 86 break; 87 case 'g': 88 args.gid = a_gid(optarg); 89 set_gid = 1; 90 break; 91 case 'm': 92 args.mode = a_mask(optarg); 93 set_mask = 1; 94 break; 95 case 'o': 96 getmntopts(optarg, mopts, &mntflags, 0); 97 break; 98 #if 0 99 case 'W': 100 load_u2wtable(&args, optarg); 101 args.flags |= HPFSMNT_TABLES; 102 break; 103 #endif 104 case '?': 105 default: 106 usage(); 107 break; 108 } 109 } 110 111 if (optind + 2 != argc) 112 usage(); 113 114 if (!(mntflags & MNT_RDONLY) && !forcerw) { 115 warnx("Write support is BETA, you need -F flag to enable RW mount!"); 116 exit (111); 117 } 118 119 dev = argv[optind]; 120 dir = argv[optind + 1]; 121 if (dir[0] != '/') { 122 warnx("\"%s\" is a relative path", dir); 123 if (getcwd(ndir, sizeof(ndir)) == NULL) 124 err(EX_OSERR, "getcwd"); 125 strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1); 126 strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1); 127 dir = ndir; 128 warnx("using \"%s\" instead", dir); 129 } 130 131 args.fspec = dev; 132 args.export.ex_root = 65534; /* unchecked anyway on DOS fs */ 133 if (mntflags & MNT_RDONLY) 134 args.export.ex_flags = MNT_EXRDONLY; 135 else 136 args.export.ex_flags = 0; 137 138 if (!set_gid || !set_uid || !set_mask) { 139 if (stat(dir, &sb) == -1) 140 err(EX_OSERR, "stat %s", dir); 141 142 if (!set_uid) 143 args.uid = sb.st_uid; 144 if (!set_gid) 145 args.gid = sb.st_gid; 146 if (!set_mask) 147 args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 148 } 149 150 error = getvfsbyname("hpfs", &vfc); 151 if(error && vfsisloadable("hpfs")) { 152 if(vfsload("hpfs")) 153 err(EX_OSERR, "vfsload(hpfs)"); 154 endvfsent(); /* clear cache */ 155 error = getvfsbyname("hpfs", &vfc); 156 } 157 if (error) 158 errx(EX_OSERR, "hpfs filesystem is not available"); 159 160 if (mount(vfc.vfc_name, dir, mntflags, &args) < 0) 161 err(EX_OSERR, "%s", dev); 162 163 exit (0); 164 } 165 166 gid_t 167 a_gid(char *s) 168 { 169 struct group *gr; 170 char *gname; 171 gid_t gid; 172 173 if ((gr = getgrnam(s)) != NULL) 174 gid = gr->gr_gid; 175 else { 176 for (gname = s; *s && isdigit(*s); ++s); 177 if (!*s) 178 gid = atoi(gname); 179 else 180 errx(EX_NOUSER, "unknown group id: %s", gname); 181 } 182 return (gid); 183 } 184 185 uid_t 186 a_uid(char *s) 187 { 188 struct passwd *pw; 189 char *uname; 190 uid_t uid; 191 192 if ((pw = getpwnam(s)) != NULL) 193 uid = pw->pw_uid; 194 else { 195 for (uname = s; *s && isdigit(*s); ++s); 196 if (!*s) 197 uid = atoi(uname); 198 else 199 errx(EX_NOUSER, "unknown user id: %s", uname); 200 } 201 return (uid); 202 } 203 204 mode_t 205 a_mask(char *s) 206 { 207 int done, rv=0; 208 char *ep; 209 210 done = 0; 211 if (*s >= '0' && *s <= '7') { 212 done = 1; 213 rv = strtol(optarg, &ep, 8); 214 } 215 if (!done || rv < 0 || *ep) 216 errx(EX_USAGE, "invalid file mode: %s", s); 217 return (rv); 218 } 219 220 void 221 usage(void) 222 { 223 fprintf(stderr, "usage: mount_hpfs [-u user] [-g group] [-m mask] bdev dir\n"); 224 exit(EX_USAGE); 225 } 226 227 #if 0 228 void 229 load_u2wtable (struct hpfs_args *pargs, char *name) 230 { 231 FILE *f; 232 int i, code; 233 char buf[128]; 234 char *fn; 235 236 if (*name == '/') 237 fn = name; 238 else { 239 snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name); 240 buf[127] = '\0'; 241 fn = buf; 242 } 243 if ((f = fopen(fn, "r")) == NULL) 244 err(EX_NOINPUT, "%s", fn); 245 for (i = 0; i < 128; i++) { 246 if (fscanf(f, "%i", &code) != 1) 247 errx(EX_DATAERR, "u2w: missing item number %d", i); 248 /* pargs->u2w[i] = code; */ 249 } 250 for (i = 0; i < 128; i++) { 251 if (fscanf(f, "%i", &code) != 1) 252 errx(EX_DATAERR, "d2u: missing item number %d", i); 253 pargs->d2u[i] = code; 254 } 255 for (i = 0; i < 128; i++) { 256 if (fscanf(f, "%i", &code) != 1) 257 errx(EX_DATAERR, "u2d: missing item number %d", i); 258 pargs->u2d[i] = code; 259 } 260 fclose(f); 261 } 262 #endif 263