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 * 3. 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 */ 36 37 /* 38 * Flags 39 */ 40 extern int cvtflag; /* convert from old to new tape format */ 41 extern int bflag; /* set input block size */ 42 extern int dflag; /* print out debugging info */ 43 extern int hflag; /* restore hierarchies */ 44 extern int mflag; /* restore by name instead of inode number */ 45 extern int Nflag; /* do not write the disk */ 46 extern int uflag; /* unlink symlink targets */ 47 extern int vflag; /* print out actions taken */ 48 extern int yflag; /* always try to recover from tape errors */ 49 /* 50 * Global variables 51 */ 52 extern char *dumpmap; /* map of inodes on this dump tape */ 53 extern char *usedinomap; /* map of inodes that are in use on this fs */ 54 extern ufs1_ino_t maxino; /* highest numbered inode in this file system */ 55 extern long dumpnum; /* location of the dump on this tape */ 56 extern long volno; /* current volume being read */ 57 extern long ntrec; /* number of TP_BSIZE records per tape block */ 58 extern time_t dumptime; /* time that this dump begins */ 59 extern time_t dumpdate; /* time that this dump was made */ 60 extern char command; /* opration being performed */ 61 extern FILE *terminal; /* file descriptor for the terminal input */ 62 extern int oldinofmt; /* reading tape with old format inodes */ 63 extern int Bcvt; /* need byte swapping on inodes and dirs */ 64 65 /* 66 * Each file in the file system is described by one of these entries 67 */ 68 struct entry { 69 char *e_name; /* the current name of this entry */ 70 u_char e_namlen; /* length of this name */ 71 char e_type; /* type of this entry, see below */ 72 short e_flags; /* status flags, see below */ 73 ufs1_ino_t e_ino; /* inode number in previous file sys */ 74 long e_index; /* unique index (for dumpped table) */ 75 struct entry *e_parent; /* pointer to parent directory (..) */ 76 struct entry *e_sibling; /* next element in this directory (.) */ 77 struct entry *e_links; /* hard links to this inode */ 78 struct entry *e_entries; /* for directories, their entries */ 79 struct entry *e_next; /* hash chain list */ 80 }; 81 /* types */ 82 #define LEAF 1 /* non-directory entry */ 83 #define NODE 2 /* directory entry */ 84 #define LINK 4 /* synthesized type, stripped by addentry */ 85 /* flags */ 86 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 87 #define NEW 0x0002 /* a new entry to be extracted */ 88 #define KEEP 0x0004 /* entry is not to change */ 89 #define REMOVED 0x0010 /* entry has been removed */ 90 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 91 #define EXISTED 0x0040 /* directory already existed during extract */ 92 93 /* 94 * Constants associated with entry structs 95 */ 96 #define HARDLINK 1 97 #define SYMLINK 2 98 #define TMPHDR "RSTTMP" 99 100 /* 101 * The entry describes the next file available on the tape 102 */ 103 struct context { 104 const char *name; /* name of file */ 105 ufs1_ino_t ino; /* inumber of file */ 106 struct ufs1_dinode *dip; /* pointer to inode */ 107 char action; /* action being taken on this file */ 108 } curfile; 109 /* actions */ 110 #define USING 1 /* extracting from the tape */ 111 #define SKIP 2 /* skipping */ 112 #define UNKNOWN 3 /* disposition or starting point is unknown */ 113 114 /* 115 * Definitions for library routines operating on directories. 116 */ 117 typedef struct rstdirdesc RST_DIR; 118 119 /* 120 * Flags to setdirmodes. 121 */ 122 #define FORCE 0x0001 123 124 /* 125 * Useful macros 126 */ 127 #define TSTINO(ino, map) \ 128 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 129 #define SETINO(ino, map) \ 130 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 131 132 #define dprintf if (dflag) fprintf 133 #define vprintf if (vflag) fprintf 134 135 #define GOOD 1 136 #define FAIL 0 137