1 /* $NetBSD: restore.h,v 1.11 2001/08/24 10:24:46 wiz Exp $ */ 2 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. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)restore.h 8.3 (Berkeley) 9/13/94 41 */ 42 43 /* 44 * Flags 45 */ 46 extern int cvtflag; /* convert from old to new tape format */ 47 extern int bflag; /* set input block size */ 48 extern int dflag; /* print out debugging info */ 49 extern int hflag; /* restore hierarchies */ 50 extern int mflag; /* restore by name instead of inode number */ 51 extern int Nflag; /* do not write the disk */ 52 extern int vflag; /* print out actions taken */ 53 extern int uflag; /* unlink file before writing to it */ 54 extern int yflag; /* always try to recover from tape errors */ 55 /* 56 * Global variables 57 */ 58 extern char *dumpmap; /* map of inodes on this dump tape */ 59 extern char *usedinomap; /* map of inodes that are in use on this fs */ 60 extern ino_t maxino; /* highest numbered inode in this file system */ 61 extern int32_t dumpnum; /* location of the dump on this tape */ 62 extern int32_t volno; /* current volume being read */ 63 extern int32_t ntrec; /* number of TP_BSIZE records per tape block */ 64 extern time_t dumptime; /* time that this dump begins */ 65 extern time_t dumpdate; /* time that this dump was made */ 66 extern char command; /* opration being performed */ 67 extern FILE *terminal; /* file descriptor for the terminal input */ 68 extern char *tmpdir; /* where to store temporary files */ 69 extern int oldinofmt; /* reading tape with old format inodes */ 70 extern int Bcvt; /* need byte swapping on inodes and dirs */ 71 72 /* 73 * Each file in the file system is described by one of these entries 74 */ 75 struct entry { 76 char *e_name; /* the current name of this entry */ 77 u_char e_namlen; /* length of this name */ 78 char e_type; /* type of this entry, see below */ 79 int16_t e_flags; /* status flags, see below */ 80 ino_t e_ino; /* inode number in previous file sys */ 81 int32_t e_index; /* unique index (for dumped table) */ 82 struct entry *e_parent; /* pointer to parent directory (..) */ 83 struct entry *e_sibling; /* next element in this directory (.) */ 84 struct entry *e_links; /* hard links to this inode */ 85 struct entry *e_entries; /* for directories, their entries */ 86 struct entry *e_next; /* hash chain list */ 87 }; 88 /* types */ 89 #define LEAF 1 /* non-directory entry */ 90 #define NODE 2 /* directory entry */ 91 #define LINK 4 /* synthesized type, stripped by addentry */ 92 /* flags */ 93 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 94 #define NEW 0x0002 /* a new entry to be extracted */ 95 #define KEEP 0x0004 /* entry is not to change */ 96 #define REMOVED 0x0010 /* entry has been removed */ 97 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 98 #define EXISTED 0x0040 /* directory already existed during extract */ 99 100 /* 101 * Constants associated with entry structs 102 */ 103 #define HARDLINK 1 104 #define SYMLINK 2 105 #define TMPHDR "RSTTMP" 106 107 /* 108 * The entry describes the next file available on the tape 109 */ 110 struct context { 111 char *name; /* name of file */ 112 ino_t ino; /* inumber of file */ 113 struct dinode *dip; /* pointer to inode */ 114 char action; /* action being taken on this file */ 115 } curfile; 116 /* actions */ 117 #define USING 1 /* extracting from the tape */ 118 #define SKIP 2 /* skipping */ 119 #define UNKNOWN 3 /* disposition or starting point is unknown */ 120 121 /* 122 * Definitions for library routines operating on directories. 123 */ 124 typedef struct rstdirdesc RST_DIR; 125 126 /* 127 * Flags to setdirmodes. 128 */ 129 #define FORCE 0x0001 130 131 /* 132 * Useful macros 133 */ 134 #define TSTINO(ino, map) \ 135 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 136 #define SETINO(ino, map) \ 137 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 138 139 #define dprintf if (dflag) fprintf 140 #define vprintf if (vflag) fprintf 141 142 #define GOOD 1 143 #define FAIL 0 144