1 /* $NetBSD: mount_ext2fs.c,v 1.2 1997/09/15 04:31:50 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 8.2 (Berkeley) 3/27/94"; 45 #else 46 __RCSID("$NetBSD: mount_ext2fs.c,v 1.2 1997/09/15 04:31:50 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 #include <string.h> 58 #include <unistd.h> 59 60 #include "mntopts.h" 61 62 void ext2fs_usage __P((void)); 63 int main __P((int, char *[])); 64 65 static const struct mntopt mopts[] = { 66 MOPT_STDOPTS, 67 MOPT_ASYNC, 68 MOPT_SYNC, 69 MOPT_UPDATE, 70 MOPT_RELOAD, 71 { NULL } 72 }; 73 74 int 75 main(argc, argv) 76 int argc; 77 char *argv[]; 78 { 79 extern int optreset; 80 struct ufs_args args; /* XXX ffs_args */ 81 int ch, mntflags; 82 char *fs_name, *errcause; 83 84 mntflags = 0; 85 optind = optreset = 1; /* Reset for parse of new argv. */ 86 while ((ch = getopt(argc, argv, "o:")) != -1) 87 switch (ch) { 88 case 'o': 89 getmntopts(optarg, mopts, &mntflags); 90 break; 91 case '?': 92 default: 93 ext2fs_usage(); 94 } 95 argc -= optind; 96 argv += optind; 97 98 if (argc != 2) 99 ext2fs_usage(); 100 101 args.fspec = argv[0]; /* The name of the device file. */ 102 fs_name = argv[1]; /* The mount point. */ 103 104 #define DEFAULT_ROOTUID -2 105 args.export.ex_root = DEFAULT_ROOTUID; 106 if (mntflags & MNT_RDONLY) 107 args.export.ex_flags = MNT_EXRDONLY; 108 else 109 args.export.ex_flags = 0; 110 111 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) < 0) { 112 switch (errno) { 113 case EMFILE: 114 errcause = "mount table full"; 115 break; 116 case EINVAL: 117 if (mntflags & MNT_UPDATE) 118 errcause = 119 "specified device does not match mounted device"; 120 else 121 errcause = "incorrect super block"; 122 break; 123 default: 124 errcause = strerror(errno); 125 break; 126 } 127 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 128 } 129 exit(0); 130 } 131 132 void 133 ext2fs_usage() 134 { 135 (void)fprintf(stderr, 136 "usage: mount_ext2fs [-o options] special node\n"); 137 exit(1); 138 } 139