1 /* $NetBSD: mount_ados.c,v 1.13 2001/02/22 21:34:57 is 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_ados.c,v 1.13 2001/02/22 21:34:57 is 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 <ctype.h> 47 #include <err.h> 48 #include <grp.h> 49 #include <pwd.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #include <adosfs/adosfs.h> 56 57 #include "mntopts.h" 58 #include <errno.h> 59 #include <fattr.h> 60 61 static const struct mntopt mopts[] = { 62 MOPT_STDOPTS, 63 { NULL } 64 }; 65 66 int main __P((int, char *[])); 67 int mount_ados __P((int argc, char **argv)); 68 static void usage __P((void)); 69 70 #ifndef MOUNT_NOMAIN 71 int 72 main(int argc, char **argv) 73 { 74 return mount_ados(argc, argv); 75 } 76 #endif 77 78 int 79 mount_ados(argc, argv) 80 int argc; 81 char **argv; 82 { 83 struct adosfs_args args; 84 struct stat sb; 85 int c, mntflags, set_gid, set_uid, set_mask; 86 char *dev, *dir, ndir[MAXPATHLEN+1]; 87 88 mntflags = set_gid = set_uid = set_mask = 0; 89 (void)memset(&args, '\0', sizeof(args)); 90 91 while ((c = getopt(argc, argv, "u:g:m:o:")) != -1) { 92 switch (c) { 93 case 'u': 94 args.uid = a_uid(optarg); 95 set_uid = 1; 96 break; 97 case 'g': 98 args.gid = a_gid(optarg); 99 set_gid = 1; 100 break; 101 case 'm': 102 args.mask = a_mask(optarg); 103 set_mask = 1; 104 break; 105 case 'o': 106 getmntopts(optarg, mopts, &mntflags, 0); 107 break; 108 case '?': 109 default: 110 usage(); 111 break; 112 } 113 } 114 115 if (optind + 2 != argc) 116 usage(); 117 118 dev = argv[optind]; 119 dir = argv[optind + 1]; 120 if (dir[0] != '/') { 121 warnx("\"%s\" is a relative path.", dir); 122 if (getcwd(ndir, sizeof(ndir)) == NULL) 123 err(1, "getcwd"); 124 strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1); 125 strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1); 126 dir = ndir; 127 warnx("using \"%s\" instead.", dir); 128 } 129 130 args.fspec = dev; 131 args.export.ex_root = -2; /* unchecked anyway on DOS fs */ 132 if (mntflags & MNT_RDONLY) 133 args.export.ex_flags = MNT_EXRDONLY; 134 else 135 args.export.ex_flags = 0; 136 if (!set_gid || !set_uid || !set_mask) { 137 if (stat(dir, &sb) == -1) 138 err(1, "stat %s", dir); 139 140 if (!set_uid) 141 args.uid = sb.st_uid; 142 if (!set_gid) 143 args.gid = sb.st_gid; 144 if (!set_mask) 145 args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 146 } 147 148 if (mount(MOUNT_ADOSFS, dir, mntflags, &args) >= 0) 149 exit (0); 150 151 if (errno != EROFS) 152 err(1, "%s on %s", dev, dir); 153 154 mntflags |= MNT_RDONLY; 155 args.export.ex_flags = MNT_EXRDONLY; 156 157 if (mount(MOUNT_ADOSFS, dir, mntflags, &args) >= 0) 158 exit (0); 159 160 err(1, "%s on %s", dev, dir); 161 } 162 163 static void 164 usage() 165 { 166 167 fprintf(stderr, "usage: mount_ados [-o options] [-u user] [-g group] [-m mask] bdev dir\n"); 168 exit(1); 169 } 170