1 /* $NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1993, 1994 5 * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1993, 1994\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)mount_ufs.c 8.4 (Berkeley) 4/26/95"; 41 #else 42 __RCSID("$NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/mount.h> 48 #include <ufs/ufs/ufsmount.h> 49 50 #include <err.h> 51 #include <errno.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 55 #include <string.h> 56 #include <unistd.h> 57 58 #include <mntopts.h> 59 60 #include "mountprog.h" 61 #include "mount_ext2fs.h" 62 63 __dead static void ext2fs_usage(void); 64 65 static const struct mntopt mopts[] = { 66 MOPT_STDOPTS, 67 MOPT_ASYNC, 68 MOPT_SYNC, 69 MOPT_UPDATE, 70 MOPT_RELOAD, 71 MOPT_FORCE, 72 MOPT_GETARGS, 73 MOPT_NODEVMTIME, 74 MOPT_NOATIME, 75 MOPT_RELATIME, 76 MOPT_NULL, 77 }; 78 79 #ifndef MOUNT_NOMAIN 80 int 81 main(int argc, char *argv[]) 82 { 83 84 setprogname(argv[0]); 85 return mount_ext2fs(argc, argv); 86 } 87 #endif 88 89 void 90 mount_ext2fs_parseargs(int argc, char *argv[], 91 struct ufs_args *args, int *mntflags, 92 char *canon_dev, char *canon_dir) 93 { 94 int ch; 95 mntoptparse_t mp; 96 97 memset(args, 0, sizeof(*args)); 98 *mntflags = 0; 99 optind = optreset = 1; /* Reset for parse of new argv. */ 100 while ((ch = getopt(argc, argv, "o:")) != -1) 101 switch (ch) { 102 case 'o': 103 mp = getmntopts(optarg, mopts, mntflags, 0); 104 if (mp == NULL) 105 err(1, "getmntopts"); 106 freemntopts(mp); 107 break; 108 case '?': 109 default: 110 ext2fs_usage(); 111 } 112 argc -= optind; 113 argv += optind; 114 115 if (argc != 2) 116 ext2fs_usage(); 117 118 pathadj(argv[0], canon_dev); 119 args->fspec = canon_dev; 120 121 pathadj(argv[1], canon_dir); 122 } 123 124 int 125 mount_ext2fs(int argc, char *argv[]) 126 { 127 struct ufs_args args; /* XXX ffs_args */ 128 char fs_name[MAXPATHLEN], canon_dev[MAXPATHLEN]; 129 const char *errcause; 130 int mntflags; 131 132 mount_ext2fs_parseargs(argc, argv, &args, &mntflags, 133 canon_dev, fs_name); 134 135 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args, sizeof args) == -1) { 136 switch (errno) { 137 case EMFILE: 138 errcause = "mount table full"; 139 break; 140 case EINVAL: 141 if (mntflags & MNT_UPDATE) 142 errcause = 143 "specified device does not match mounted device"; 144 else 145 errcause = "incorrect super block"; 146 break; 147 default: 148 errcause = strerror(errno); 149 break; 150 } 151 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 152 } 153 exit(0); 154 } 155 156 static void 157 ext2fs_usage(void) 158 { 159 (void)fprintf(stderr, 160 "usage: %s [-o options] special node\n", getprogname()); 161 exit(1); 162 } 163