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