1 /* $NetBSD: mount_ext2fs.c,v 1.21 2008/08/05 20:57:45 pooka 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 1.21 2008/08/05 20:57:45 pooka 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 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_NULL, 75 }; 76 77 #ifndef MOUNT_NOMAIN 78 int 79 main(int argc, char *argv[]) 80 { 81 82 setprogname(argv[0]); 83 return mount_ext2fs(argc, argv); 84 } 85 #endif 86 87 void 88 mount_ext2fs_parseargs(int argc, char *argv[], 89 struct ufs_args *args, int *mntflags, 90 char *canon_dev, char *canon_dir) 91 { 92 int ch; 93 mntoptparse_t mp; 94 95 memset(args, 0, sizeof(*args)); 96 *mntflags = 0; 97 optind = optreset = 1; /* Reset for parse of new argv. */ 98 while ((ch = getopt(argc, argv, "o:")) != -1) 99 switch (ch) { 100 case 'o': 101 mp = getmntopts(optarg, mopts, mntflags, 0); 102 if (mp == NULL) 103 err(1, "getmntopts"); 104 freemntopts(mp); 105 break; 106 case '?': 107 default: 108 ext2fs_usage(); 109 } 110 argc -= optind; 111 argv += optind; 112 113 if (argc != 2) 114 ext2fs_usage(); 115 116 pathadj(argv[0], canon_dev); 117 args->fspec = canon_dev; 118 119 pathadj(argv[1], canon_dir); 120 } 121 122 int 123 mount_ext2fs(int argc, char *argv[]) 124 { 125 struct ufs_args args; /* XXX ffs_args */ 126 char fs_name[MAXPATHLEN], canon_dev[MAXPATHLEN]; 127 const char *errcause; 128 int mntflags; 129 130 mount_ext2fs_parseargs(argc, argv, &args, &mntflags, 131 canon_dev, fs_name); 132 133 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args, sizeof args) == -1) { 134 switch (errno) { 135 case EMFILE: 136 errcause = "mount table full"; 137 break; 138 case EINVAL: 139 if (mntflags & MNT_UPDATE) 140 errcause = 141 "specified device does not match mounted device"; 142 else 143 errcause = "incorrect super block"; 144 break; 145 default: 146 errcause = strerror(errno); 147 break; 148 } 149 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 150 } 151 exit(0); 152 } 153 154 static void 155 ext2fs_usage(void) 156 { 157 (void)fprintf(stderr, 158 "usage: %s [-o options] special node\n", getprogname()); 159 exit(1); 160 } 161