1 /* $NetBSD: mount_ext2fs.c,v 1.3 1997/09/16 12:26:50 lukem 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)mount_ufs.c 8.4 (Berkeley) 4/26/95"; 45 #else 46 __RCSID("$NetBSD: mount_ext2fs.c,v 1.3 1997/09/16 12:26:50 lukem Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/mount.h> 52 53 #include <err.h> 54 #include <errno.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 58 #include <string.h> 59 #include <unistd.h> 60 61 #include "mntopts.h" 62 63 void ext2fs_usage __P((void)); 64 int main __P((int, char *[])); 65 66 static const struct mntopt mopts[] = { 67 MOPT_STDOPTS, 68 MOPT_ASYNC, 69 MOPT_SYNC, 70 MOPT_UPDATE, 71 MOPT_RELOAD, 72 MOPT_FORCE, 73 { NULL } 74 }; 75 76 int 77 main(argc, argv) 78 int argc; 79 char *argv[]; 80 { 81 extern int optreset; 82 struct ufs_args args; /* XXX ffs_args */ 83 int ch, mntflags; 84 char *fs_name, *errcause; 85 86 mntflags = 0; 87 optind = optreset = 1; /* Reset for parse of new argv. */ 88 while ((ch = getopt(argc, argv, "o:")) != -1) 89 switch (ch) { 90 case 'o': 91 getmntopts(optarg, mopts, &mntflags, 0); 92 break; 93 case '?': 94 default: 95 ext2fs_usage(); 96 } 97 argc -= optind; 98 argv += optind; 99 100 if (argc != 2) 101 ext2fs_usage(); 102 103 args.fspec = argv[0]; /* The name of the device file. */ 104 fs_name = argv[1]; /* The mount point. */ 105 106 #define DEFAULT_ROOTUID -2 107 args.export.ex_root = DEFAULT_ROOTUID; 108 if (mntflags & MNT_RDONLY) 109 args.export.ex_flags = MNT_EXRDONLY; 110 else 111 args.export.ex_flags = 0; 112 113 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) < 0) { 114 switch (errno) { 115 case EMFILE: 116 errcause = "mount table full"; 117 break; 118 case EINVAL: 119 if (mntflags & MNT_UPDATE) 120 errcause = 121 "specified device does not match mounted device"; 122 else 123 errcause = "incorrect super block"; 124 break; 125 default: 126 errcause = strerror(errno); 127 break; 128 } 129 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 130 } 131 exit(0); 132 } 133 134 void 135 ext2fs_usage() 136 { 137 (void)fprintf(stderr, 138 "usage: mount_ext2fs [-o options] special node\n"); 139 exit(1); 140 } 141