1 /* 2 * Copyright (c) 2002 Juli Mallett. All rights reserved. 3 * 4 * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the 5 * FreeBSD project. Redistribution and use in source and binary forms, with 6 * or without modification, are permitted provided that the following 7 * conditions are met: 8 * 9 * 1. Redistribution of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 2. Redistribution in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/mount.h> 33 #include <sys/disklabel.h> 34 #include <sys/stat.h> 35 36 #include <ufs/ufs/ufsmount.h> 37 #include <ufs/ufs/dinode.h> 38 #include <ufs/ffs/fs.h> 39 40 #include <errno.h> 41 #include <fcntl.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 #include <libufs.h> 48 49 struct uufsd * 50 ufs_disk_ctor(const char *name) 51 { 52 struct uufsd *new; 53 54 DEBUG(NULL); 55 56 new = malloc(sizeof(*new)); 57 if (new == NULL) { 58 DEBUG(NULL); 59 return NULL; 60 } 61 62 if (ufs_disk_fillout(new, name) == -1) { 63 DEBUG(NULL); 64 free(new); 65 return NULL; 66 } 67 68 return new; 69 } 70 71 void 72 ufs_disk_dtor(struct uufsd **disk) 73 { 74 DEBUG(NULL); 75 ufs_disk_close(*disk); 76 free(*disk); 77 *disk = NULL; 78 } 79 80 int 81 ufs_disk_close(struct uufsd *disk) 82 { 83 DEBUG(NULL); 84 close(disk->d_fd); 85 if (disk->d_inoblock != NULL) { 86 free(disk->d_inoblock); 87 disk->d_inoblock = NULL; 88 } 89 return 0; 90 } 91 92 int 93 ufs_disk_fillout(struct uufsd *disk, const char *name) 94 { 95 int fd; 96 97 DEBUG(NULL); 98 99 fd = open(name, O_RDONLY); 100 if (fd == -1) { 101 DEBUG("open"); 102 disk->d_error = "failed to open disk for reading"; 103 return -1; 104 } 105 106 disk->d_bsize = 1; 107 disk->d_fd = fd; 108 disk->d_inoblock = NULL; 109 disk->d_inomin = 0; 110 disk->d_inomax = 0; 111 disk->d_name = name; 112 disk->d_ufs = 0; 113 disk->d_error = NULL; 114 115 if (sbread(disk) == -1) { 116 DEBUG(NULL); 117 return -1; 118 } 119 120 return 0; 121 } 122