1 /* $NetBSD: mount_ext2fs.c,v 1.16 2006/10/16 03:29:06 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\n\ 35 The Regents of the University of California. All rights reserved.\n"); 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 1.16 2006/10/16 03:29:06 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 static void ext2fs_usage(void); 61 int mount_ext2fs(int argc, char **argv); 62 63 static const struct mntopt mopts[] = { 64 MOPT_STDOPTS, 65 MOPT_ASYNC, 66 MOPT_SYNC, 67 MOPT_UPDATE, 68 MOPT_RELOAD, 69 MOPT_FORCE, 70 MOPT_GETARGS, 71 MOPT_NODEVMTIME, 72 { .m_option = NULL } 73 }; 74 75 #ifndef MOUNT_NOMAIN 76 int 77 main(int argc, char *argv[]) 78 { 79 return mount_ext2fs(argc, argv); 80 } 81 #endif 82 83 int 84 mount_ext2fs(int argc, char *argv[]) 85 { 86 struct ufs_args args; /* XXX ffs_args */ 87 int ch, mntflags; 88 char fs_name[MAXPATHLEN], canon_dev[MAXPATHLEN]; 89 const char *errcause; 90 mntoptparse_t mp; 91 92 mntflags = 0; 93 optind = optreset = 1; /* Reset for parse of new argv. */ 94 while ((ch = getopt(argc, argv, "o:")) != -1) 95 switch (ch) { 96 case 'o': 97 mp = getmntopts(optarg, mopts, &mntflags, 0); 98 if (mp == NULL) 99 err(1, "getmntopts"); 100 freemntopts(mp); 101 break; 102 case '?': 103 default: 104 ext2fs_usage(); 105 } 106 argc -= optind; 107 argv += optind; 108 109 if (argc != 2) 110 ext2fs_usage(); 111 112 if (realpath(argv[0], canon_dev) == NULL) /* Check device path */ 113 err(1, "realpath %s", argv[0]); 114 if (strncmp(argv[0], canon_dev, MAXPATHLEN)) { 115 warnx("\"%s\" is a relative path.", argv[0]); 116 warnx("using \"%s\" instead.", canon_dev); 117 } 118 args.fspec = canon_dev; 119 120 if (realpath(argv[1], fs_name) == NULL) /* Check mounton path */ 121 err(1, "realpath %s", argv[1]); 122 if (strncmp(argv[1], fs_name, MAXPATHLEN)) { 123 warnx("\"%s\" is a relative path.", argv[1]); 124 warnx("using \"%s\" instead.", fs_name); 125 } 126 127 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) < 0) { 128 switch (errno) { 129 case EMFILE: 130 errcause = "mount table full"; 131 break; 132 case EINVAL: 133 if (mntflags & MNT_UPDATE) 134 errcause = 135 "specified device does not match mounted device"; 136 else 137 errcause = "incorrect super block"; 138 break; 139 default: 140 errcause = strerror(errno); 141 break; 142 } 143 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 144 } 145 exit(0); 146 } 147 148 static void 149 ext2fs_usage(void) 150 { 151 (void)fprintf(stderr, 152 "usage: mount_ext2fs [-o options] special node\n"); 153 exit(1); 154 } 155