type.c revision 105737
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: head/lib/libufs/type.c 105737 2002-10-22 19:25:58Z jmallett $"); 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 49struct uufsd * 50ufs_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 71void 72ufs_disk_dtor(struct uufsd **disk) 73{ 74 DEBUG(NULL); 75 ufs_disk_close(*disk); 76 free(*disk); 77 *disk = NULL; 78} 79 80int 81ufs_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 92int 93ufs_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