mount_msdos.c revision 1.32
1 /* $NetBSD: mount_msdos.c,v 1.32 2003/09/08 07:21:59 wiz Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christopher G. Demetriou 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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 for the 18 * NetBSD Project. See http://www.NetBSD.org/ for 19 * information about NetBSD. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>> 35 */ 36 37 #include <sys/cdefs.h> 38 #ifndef lint 39 __RCSID("$NetBSD: mount_msdos.c,v 1.32 2003/09/08 07:21:59 wiz Exp $"); 40 #endif /* not lint */ 41 42 #include <sys/cdefs.h> 43 #include <sys/param.h> 44 #include <sys/mount.h> 45 #include <sys/stat.h> 46 #include <msdosfs/msdosfsmount.h> 47 #include <ctype.h> 48 #include <err.h> 49 #include <grp.h> 50 #include <pwd.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <time.h> 55 #include <unistd.h> 56 #include <util.h> 57 58 #include <mntopts.h> 59 #include <fattr.h> 60 61 static const struct mntopt mopts[] = { 62 MOPT_STDOPTS, 63 MOPT_ASYNC, 64 MOPT_SYNC, 65 MOPT_UPDATE, 66 MOPT_GETARGS, 67 { NULL } 68 }; 69 70 int main __P((int, char *[])); 71 int mount_msdos __P((int argc, char **argv)); 72 static void usage __P((void)) __attribute__((__noreturn__)); 73 74 #ifndef MOUNT_NOMAIN 75 int 76 main(argc, argv) 77 int argc; 78 char **argv; 79 { 80 return mount_msdos(argc, argv); 81 } 82 #endif 83 84 int 85 mount_msdos(argc, argv) 86 int argc; 87 char **argv; 88 { 89 struct msdosfs_args args; 90 struct stat sb; 91 int c, mntflags, set_gid, set_uid, set_mask, set_dirmask, set_gmtoff; 92 char *dev, *dir, ndir[MAXPATHLEN+1]; 93 time_t now; 94 struct tm *tm; 95 96 mntflags = set_gid = set_uid = set_mask = set_dirmask = set_gmtoff = 0; 97 (void)memset(&args, '\0', sizeof(args)); 98 99 while ((c = getopt(argc, argv, "Gsl9u:g:m:M:o:t:")) != -1) { 100 switch (c) { 101 case 'G': 102 args.flags |= MSDOSFSMNT_GEMDOSFS; 103 break; 104 case 's': 105 args.flags |= MSDOSFSMNT_SHORTNAME; 106 break; 107 case 'l': 108 args.flags |= MSDOSFSMNT_LONGNAME; 109 break; 110 case '9': 111 args.flags |= MSDOSFSMNT_NOWIN95; 112 break; 113 case 'u': 114 args.uid = a_uid(optarg); 115 set_uid = 1; 116 break; 117 case 'g': 118 args.gid = a_gid(optarg); 119 set_gid = 1; 120 break; 121 case 'm': 122 args.mask = a_mask(optarg); 123 set_mask = 1; 124 break; 125 case 'M': 126 args.dirmask = a_mask(optarg); 127 set_dirmask = 1; 128 break; 129 case 'o': 130 getmntopts(optarg, mopts, &mntflags, 0); 131 break; 132 case 't': 133 args.gmtoff = atoi(optarg); 134 set_gmtoff = 1; 135 break; 136 case '?': 137 default: 138 usage(); 139 break; 140 } 141 } 142 143 if (optind + 2 != argc) 144 usage(); 145 146 if (set_mask && !set_dirmask) { 147 args.dirmask = args.mask; 148 set_dirmask = 1; 149 } else if (set_dirmask && !set_mask) { 150 args.mask = args.dirmask; 151 set_mask = 1; 152 } 153 154 dev = argv[optind]; 155 dir = argv[optind + 1]; 156 if (dir[0] != '/') { 157 warnx("\"%s\" is a relative path.", dir); 158 if (getcwd(ndir, sizeof(ndir)) == NULL) 159 err(1, "getcwd"); 160 strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1); 161 strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1); 162 dir = ndir; 163 warnx("using \"%s\" instead.", dir); 164 } 165 166 args.fspec = dev; 167 args.export.ex_root = -2; /* unchecked anyway on DOS fs */ 168 if (mntflags & MNT_RDONLY) 169 args.export.ex_flags = MNT_EXRDONLY; 170 else 171 args.export.ex_flags = 0; 172 if (!set_gid || !set_uid || !set_mask) { 173 if (stat(dir, &sb) == -1) 174 err(1, "stat %s", dir); 175 176 if (!set_uid) 177 args.uid = sb.st_uid; 178 if (!set_gid) 179 args.gid = sb.st_gid; 180 if (!set_mask) { 181 args.mask = args.dirmask = 182 sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 183 } 184 } 185 186 if (!set_gmtoff) { 187 /* use user's time zone as default */ 188 time(&now); 189 tm = localtime(&now); 190 args.gmtoff = tm->tm_gmtoff; 191 192 } 193 args.flags |= MSDOSFSMNT_VERSIONED; 194 args.version = MSDOSFSMNT_VERSION; 195 196 if (mount(MOUNT_MSDOS, dir, mntflags, &args) < 0) 197 err(1, "%s on %s", dev, dir); 198 199 if (mntflags & MNT_GETARGS) { 200 char buf[1024]; 201 (void)snprintb(buf, sizeof(buf), MSDOSFSMNT_BITS, args.flags); 202 printf("uid=%d, gid=%d, mask=0%o, dirmask=0%o, flags=%s\n", 203 args.uid, args.gid, args.mask, args.dirmask, buf); 204 } 205 206 exit (0); 207 } 208 209 static void 210 usage() 211 { 212 213 fprintf(stderr, "Usage:\nmount_msdos [-9Gls] [-g gid] [-M mask] [-m mask] [-o options]\n" 214 "\t[-t gmtoff] [-u uid] special node\n"); 215 exit(1); 216 } 217
Indexes created Sat Sep 27 14:09:57 GMT 2025