1 /* $NetBSD: mount_msdos.c,v 1.24 2000/10/30 20:57:00 jdolecek 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 1.24 2000/10/30 20:57:00 jdolecek 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 <unistd.h> 55 56 #include "mntopts.h" 57 #include <fattr.h> 58 59 static const struct mntopt mopts[] = { 60 MOPT_STDOPTS, 61 MOPT_ASYNC, 62 MOPT_SYNC, 63 MOPT_UPDATE, 64 { NULL } 65 }; 66 67 int main __P((int, char *[])); 68 int mount_msdos __P((int argc, char **argv)); 69 static void usage __P((void)); 70 71 #ifndef MOUNT_NOMAIN 72 int 73 main(argc, argv) 74 int argc; 75 char **argv; 76 { 77 return mount_msdos(argc, argv); 78 } 79 #endif 80 81 int 82 mount_msdos(argc, argv) 83 int argc; 84 char **argv; 85 { 86 struct msdosfs_args args; 87 struct stat sb; 88 int c, mntflags, set_gid, set_uid, set_mask; 89 char *dev, *dir, ndir[MAXPATHLEN+1]; 90 91 mntflags = set_gid = set_uid = set_mask = 0; 92 (void)memset(&args, '\0', sizeof(args)); 93 94 while ((c = getopt(argc, argv, "Gsl9u:g:m:o:")) != -1) { 95 switch (c) { 96 case 'G': 97 args.flags |= MSDOSFSMNT_GEMDOSFS; 98 break; 99 case 's': 100 args.flags |= MSDOSFSMNT_SHORTNAME; 101 break; 102 case 'l': 103 args.flags |= MSDOSFSMNT_LONGNAME; 104 break; 105 case '9': 106 args.flags |= MSDOSFSMNT_NOWIN95; 107 break; 108 case 'u': 109 args.uid = a_uid(optarg); 110 set_uid = 1; 111 break; 112 case 'g': 113 args.gid = a_gid(optarg); 114 set_gid = 1; 115 break; 116 case 'm': 117 args.mask = a_mask(optarg); 118 set_mask = 1; 119 break; 120 case 'o': 121 getmntopts(optarg, mopts, &mntflags, 0); 122 break; 123 case '?': 124 default: 125 usage(); 126 break; 127 } 128 } 129 130 if (optind + 2 != argc) 131 usage(); 132 133 dev = argv[optind]; 134 dir = argv[optind + 1]; 135 if (dir[0] != '/') { 136 warnx("\"%s\" is a relative path.", dir); 137 if (getcwd(ndir, sizeof(ndir)) == NULL) 138 err(1, "getcwd"); 139 strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1); 140 strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1); 141 dir = ndir; 142 warnx("using \"%s\" instead.", dir); 143 } 144 145 args.fspec = dev; 146 args.export.ex_root = -2; /* unchecked anyway on DOS fs */ 147 if (mntflags & MNT_RDONLY) 148 args.export.ex_flags = MNT_EXRDONLY; 149 else 150 args.export.ex_flags = 0; 151 if (!set_gid || !set_uid || !set_mask) { 152 if (stat(dir, &sb) == -1) 153 err(1, "stat %s", dir); 154 155 if (!set_uid) 156 args.uid = sb.st_uid; 157 if (!set_gid) 158 args.gid = sb.st_gid; 159 if (!set_mask) 160 args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 161 } 162 163 if (mount(MOUNT_MSDOS, dir, mntflags, &args) < 0) 164 err(1, "%s on %s", dev, dir); 165 166 exit (0); 167 } 168 169 static void 170 usage() 171 { 172 173 fprintf(stderr, "usage: mount_msdos [-o options] [-u user] [-g group] [-m mask] bdev dir\n"); 174 exit(1); 175 } 176