1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)restore.h 8.3 (Berkeley) 9/13/94 37 * $FreeBSD$ 38 */ 39 40 /* 41 * Flags 42 */ 43 extern int bflag; /* set input block size */ 44 extern int dflag; /* print out debugging info */ 45 extern int Dflag; /* degraded mode - try hard to get stuff back */ 46 extern int hflag; /* restore hierarchies */ 47 extern int mflag; /* restore by name instead of inode number */ 48 extern int Nflag; /* do not write the disk */ 49 extern int uflag; /* unlink symlink targets */ 50 extern int vflag; /* print out actions taken */ 51 extern int yflag; /* always try to recover from tape errors */ 52 /* 53 * Global variables 54 */ 55 extern char *dumpmap; /* map of inodes on this dump tape */ 56 extern char *usedinomap; /* map of inodes that are in use on this fs */ 57 extern ino_t maxino; /* highest numbered inode in this file system */ 58 extern long dumpnum; /* location of the dump on this tape */ 59 extern long volno; /* current volume being read */ 60 extern long ntrec; /* number of TP_BSIZE records per tape block */ 61 extern time_t dumptime; /* time that this dump begins */ 62 extern time_t dumpdate; /* time that this dump was made */ 63 extern char command; /* opration being performed */ 64 extern FILE *terminal; /* file descriptor for the terminal input */ 65 extern int Bcvt; /* need byte swapping on inodes and dirs */ 66 extern int oldinofmt; /* reading tape with FreeBSD 1 format inodes */ 67 68 /* 69 * Each file in the file system is described by one of these entries 70 */ 71 struct entry { 72 char *e_name; /* the current name of this entry */ 73 u_char e_namlen; /* length of this name */ 74 char e_type; /* type of this entry, see below */ 75 short e_flags; /* status flags, see below */ 76 ino_t e_ino; /* inode number in previous file sys */ 77 long e_index; /* unique index (for dumpped table) */ 78 struct entry *e_parent; /* pointer to parent directory (..) */ 79 struct entry *e_sibling; /* next element in this directory (.) */ 80 struct entry *e_links; /* hard links to this inode */ 81 struct entry *e_entries; /* for directories, their entries */ 82 struct entry *e_next; /* hash chain list */ 83 }; 84 /* types */ 85 #define LEAF 1 /* non-directory entry */ 86 #define NODE 2 /* directory entry */ 87 #define LINK 4 /* synthesized type, stripped by addentry */ 88 /* flags */ 89 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 90 #define NEW 0x0002 /* a new entry to be extracted */ 91 #define KEEP 0x0004 /* entry is not to change */ 92 #define REMOVED 0x0010 /* entry has been removed */ 93 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 94 #define EXISTED 0x0040 /* directory already existed during extract */ 95 96 /* 97 * Constants associated with entry structs 98 */ 99 #define HARDLINK 1 100 #define SYMLINK 2 101 #define TMPHDR "RSTTMP" 102 103 /* 104 * The entry describes the next file available on the tape 105 */ 106 extern struct context { 107 short action; /* action being taken on this file */ 108 mode_t mode; /* mode of file */ 109 ino_t ino; /* inumber of file */ 110 uid_t uid; /* file owner */ 111 gid_t gid; /* file group */ 112 int file_flags; /* status flags (chflags) */ 113 int rdev; /* device number of file */ 114 time_t atime_sec; /* access time seconds */ 115 time_t mtime_sec; /* modified time seconds */ 116 time_t birthtime_sec; /* creation time seconds */ 117 int atime_nsec; /* access time nanoseconds */ 118 int mtime_nsec; /* modified time nanoseconds */ 119 int birthtime_nsec; /* creation time nanoseconds */ 120 int extsize; /* size of extended attribute data */ 121 off_t size; /* size of file */ 122 char *name; /* name of file */ 123 } curfile; 124 /* actions */ 125 #define USING 1 /* extracting from the tape */ 126 #define SKIP 2 /* skipping */ 127 #define UNKNOWN 3 /* disposition or starting point is unknown */ 128 129 /* 130 * Definitions for library routines operating on directories. 131 */ 132 typedef struct rstdirdesc RST_DIR; 133 134 /* 135 * Flags to setdirmodes. 136 */ 137 #define FORCE 0x0001 138 139 /* 140 * Useful macros 141 */ 142 #define TSTINO(ino, map) \ 143 (map[(u_int)((ino) - 1) / CHAR_BIT] & \ 144 (1 << ((u_int)((ino) - 1) % CHAR_BIT))) 145 #define SETINO(ino, map) \ 146 map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 147 1 << ((u_int)((ino) - 1) % CHAR_BIT) 148 149 #define dprintf if (dflag) fprintf 150 #define vprintf if (vflag) fprintf 151 152 #define GOOD 1 153 #define FAIL 0 154 155 #define NFS_DR_NEWINODEFMT 0x2 /* Tape uses 4.4 BSD inode format */ 156