1 /* $NetBSD: mount_ados.c,v 1.14 2002/09/21 18:43:33 christos 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 1.14 2002/09/21 18:43:33 christos 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 MOPT_GETARGS, 64 { NULL } 65 }; 66 67 int main __P((int, char *[])); 68 int mount_ados __P((int argc, char **argv)); 69 static void usage __P((void)); 70 71 #ifndef MOUNT_NOMAIN 72 int 73 main(int argc, char **argv) 74 { 75 return mount_ados(argc, argv); 76 } 77 #endif 78 79 int 80 mount_ados(argc, argv) 81 int argc; 82 char **argv; 83 { 84 struct adosfs_args args; 85 struct stat sb; 86 int c, mntflags, set_gid, set_uid, set_mask; 87 char *dev, *dir, ndir[MAXPATHLEN+1]; 88 89 mntflags = set_gid = set_uid = set_mask = 0; 90 (void)memset(&args, '\0', sizeof(args)); 91 92 while ((c = getopt(argc, argv, "u:g:m:o:")) != -1) { 93 switch (c) { 94 case 'u': 95 args.uid = a_uid(optarg); 96 set_uid = 1; 97 break; 98 case 'g': 99 args.gid = a_gid(optarg); 100 set_gid = 1; 101 break; 102 case 'm': 103 args.mask = a_mask(optarg); 104 set_mask = 1; 105 break; 106 case 'o': 107 getmntopts(optarg, mopts, &mntflags, 0); 108 break; 109 case '?': 110 default: 111 usage(); 112 break; 113 } 114 } 115 116 if (optind + 2 != argc) 117 usage(); 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(1, "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 = -2; /* 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 if (!set_gid || !set_uid || !set_mask) { 138 if (stat(dir, &sb) == -1) 139 err(1, "stat %s", dir); 140 141 if (!set_uid) 142 args.uid = sb.st_uid; 143 if (!set_gid) 144 args.gid = sb.st_gid; 145 if (!set_mask) 146 args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 147 } 148 149 if (mount(MOUNT_ADOSFS, dir, mntflags, &args) >= 0) 150 exit (0); 151 152 if (errno != EROFS) 153 err(1, "%s on %s", dev, dir); 154 155 mntflags |= MNT_RDONLY; 156 args.export.ex_flags = MNT_EXRDONLY; 157 158 if (mount(MOUNT_ADOSFS, dir, mntflags, &args) == -1) 159 err(1, "%s on %s", dev, dir); 160 161 if (mntflags & MNT_GETARGS) 162 printf("uid=%d, gid=%d, mask=%d\n", args.uid, args.gid, 163 args.mask); 164 165 exit (0); 166 } 167 168 static void 169 usage() 170 { 171 172 fprintf(stderr, "usage: mount_ados [-o options] [-u user] [-g group] [-m mask] bdev dir\n"); 173 exit(1); 174 } 175