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