1 /* $OpenBSD: mount_ffs.c,v 1.24 2016/09/10 16:53:30 natano Exp $ */ 2 /* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */ 3 4 /*- 5 * Copyright (c) 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/types.h> 34 #include <sys/mount.h> 35 36 #include <err.h> 37 #include <errno.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <limits.h> 43 44 #include "mntopts.h" 45 46 void ffs_usage(void); 47 48 static const struct mntopt mopts[] = { 49 MOPT_STDOPTS, 50 MOPT_WXALLOWED, 51 MOPT_NOPERM, 52 MOPT_ASYNC, 53 MOPT_SYNC, 54 MOPT_UPDATE, 55 MOPT_RELOAD, 56 MOPT_FORCE, 57 MOPT_SOFTDEP, 58 { NULL } 59 }; 60 61 int 62 main(int argc, char *argv[]) 63 { 64 struct ufs_args args; /* XXX ffs_args */ 65 int ch, mntflags; 66 char fs_name[PATH_MAX], *errcause; 67 68 mntflags = 0; 69 optind = optreset = 1; /* Reset for parse of new argv. */ 70 while ((ch = getopt(argc, argv, "o:")) != -1) 71 switch (ch) { 72 case 'o': 73 getmntopts(optarg, mopts, &mntflags); 74 break; 75 case '?': 76 default: 77 ffs_usage(); 78 } 79 argc -= optind; 80 argv += optind; 81 82 if (argc != 2) 83 ffs_usage(); 84 85 args.fspec = argv[0]; /* The name of the device file. */ 86 if (realpath(argv[1], fs_name) == NULL) /* The mount point. */ 87 err(1, "realpath %s", argv[1]); 88 89 #define DEFAULT_ROOTUID -2 90 args.export_info.ex_root = DEFAULT_ROOTUID; 91 if (mntflags & MNT_RDONLY) 92 args.export_info.ex_flags = MNT_EXRDONLY; 93 else 94 args.export_info.ex_flags = 0; 95 96 if (mntflags & MNT_NOPERM) 97 mntflags |= MNT_NODEV | MNT_NOEXEC; 98 99 if (mount(MOUNT_FFS, fs_name, mntflags, &args) < 0) { 100 switch (errno) { 101 case EMFILE: 102 errcause = "mount table full"; 103 break; 104 case EOPNOTSUPP: 105 errcause = "filesystem not supported by kernel"; 106 break; 107 case EROFS: 108 errcause = 109 "filesystem must be mounted read-only; you may need to run fsck"; 110 break; 111 default: 112 errcause = strerror(errno); 113 break; 114 } 115 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 116 } 117 exit(0); 118 } 119 120 void 121 ffs_usage(void) 122 { 123 (void)fprintf(stderr, "usage: mount_ffs [-o options] special node\n"); 124 exit(1); 125 } 126