1 /* $OpenBSD: mount_ext2fs.c,v 1.13 2005/04/08 20:09:36 jaredy Exp $ */ 2 /* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */ 3 4 /*- 5 * Copyright (c) 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 static char copyright[] = 35 "@(#) Copyright (c) 1993, 1994\n\ 36 The Regents of the University of California. All rights reserved.\n"; 37 #endif /* not lint */ 38 39 #ifndef lint 40 #if 0 41 static char sccsid[] = "@(#)mount_ufs.c 8.2 (Berkeley) 3/27/94"; 42 #else 43 static char rcsid[] = "$OpenBSD: mount_ext2fs.c,v 1.13 2005/04/08 20:09:36 jaredy Exp $"; 44 #endif 45 #endif /* not lint */ 46 47 #include <sys/param.h> 48 #include <sys/mount.h> 49 50 #include <err.h> 51 #include <errno.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <unistd.h> 56 57 #include "mntopts.h" 58 59 void ext2fs_usage(void); 60 61 static const struct mntopt mopts[] = { 62 MOPT_STDOPTS, 63 MOPT_UPDATE, 64 { NULL } 65 }; 66 67 int 68 main(int argc, char *argv[]) 69 { 70 struct ufs_args args; /* XXX ffs_args */ 71 int ch, mntflags; 72 char fs_name[MAXPATHLEN], *errcause; 73 74 mntflags = 0; 75 optind = optreset = 1; /* Reset for parse of new argv. */ 76 while ((ch = getopt(argc, argv, "o:")) != -1) 77 switch (ch) { 78 case 'o': 79 getmntopts(optarg, mopts, &mntflags); 80 break; 81 case '?': 82 default: 83 ext2fs_usage(); 84 } 85 argc -= optind; 86 argv += optind; 87 88 if (argc != 2) 89 ext2fs_usage(); 90 91 args.fspec = argv[0]; /* The name of the device file. */ 92 if (realpath(argv[1], fs_name) == NULL) /* The mount point. */ 93 err(1, "realpath %s", argv[1]); 94 95 #define DEFAULT_ROOTUID -2 96 args.export_info.ex_root = DEFAULT_ROOTUID; 97 if (mntflags & MNT_RDONLY) 98 args.export_info.ex_flags = MNT_EXRDONLY; 99 else 100 args.export_info.ex_flags = 0; 101 102 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) < 0) { 103 switch (errno) { 104 case EMFILE: 105 errcause = "mount table full"; 106 break; 107 case EINVAL: 108 errcause = 109 "specified device does not match mounted device"; 110 break; 111 case EOPNOTSUPP: 112 errcause = "filesystem not supported by kernel"; 113 break; 114 default: 115 errcause = strerror(errno); 116 break; 117 } 118 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause); 119 } 120 exit(0); 121 } 122 123 void 124 ext2fs_usage(void) 125 { 126 (void)fprintf(stderr, 127 "usage: mount_ext2fs [-o options] special node\n"); 128 exit(1); 129 } 130