1 /* $NetBSD: mount_ext2fs.c,v 1.11 2003/08/07 10:04:27 agc 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 1.11 2003/08/07 10:04:27 agc 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 __P((void)); 61 int main __P((int, char *[])); 62 int mount_ext2fs __P((int argc, char **argv)); 63 64 static const struct mntopt mopts[] = { 65 MOPT_STDOPTS, 66 MOPT_ASYNC, 67 MOPT_SYNC, 68 MOPT_UPDATE, 69 MOPT_RELOAD, 70 MOPT_FORCE, 71 MOPT_GETARGS, 72 MOPT_NODEVMTIME, 73 { NULL } 74 }; 75 76 #ifndef MOUNT_NOMAIN 77 int 78 main(argc, argv) 79 int argc; 80 char *argv[]; 81 { 82 return mount_ext2fs(argc, argv); 83 } 84 #endif 85 86 int 87 mount_ext2fs(argc, argv) 88 int argc; 89 char *argv[]; 90 { 91 struct ufs_args args; /* XXX ffs_args */ 92 int ch, mntflags; 93 char *fs_name; 94 const char *errcause; 95 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 getmntopts(optarg, mopts, &mntflags, 0); 102 break; 103 case '?': 104 default: 105 ext2fs_usage(); 106 } 107 argc -= optind; 108 argv += optind; 109 110 if (argc != 2) 111 ext2fs_usage(); 112 113 args.fspec = argv[0]; /* The name of the device file. */ 114 fs_name = argv[1]; /* The mount point. */ 115 116 #define DEFAULT_ROOTUID -2 117 args.export.ex_root = DEFAULT_ROOTUID; 118 if (mntflags & MNT_RDONLY) 119 args.export.ex_flags = MNT_EXRDONLY; 120 else 121 args.export.ex_flags = 0; 122 123 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) < 0) { 124 switch (errno) { 125 case EMFILE: 126 errcause = "mount table full"; 127 break; 128 case EINVAL: 129 if (mntflags & MNT_UPDATE) 130 errcause = 131 "specified device does not match mounted device"; 132 else 133 errcause = "incorrect super block"; 134 break; 135 default: 136 errcause = strerror(errno); 137 break; 138 } 139 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 140 } 141 exit(0); 142 } 143 144 static void 145 ext2fs_usage() 146 { 147 (void)fprintf(stderr, 148 "usage: mount_ext2fs [-o options] special node\n"); 149 exit(1); 150 } 151