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git.wh0rd.org - dump.git/blob - restore/restore.h
11d38ec2a6836478e2cca9506d42f5cf660b7ee6
2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@noos.fr>, 1999-2000
6 * Stelian Pop <pop@noos.fr> - AlcĂ´ve <www.alcove.fr>, 2000
8 * $Id: restore.h,v 1.12 2000/12/21 11:14:54 stelian Exp $
12 * Copyright (c) 1983, 1993
13 * The Regents of the University of California. All rights reserved.
14 * (c) UNIX System Laboratories, Inc.
15 * All or some portions of this file are derived from material licensed
16 * to the University of California by American Telephone and Telegraph
17 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
18 * the permission of UNIX System Laboratories, Inc.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 * 3. All advertising materials mentioning features or use of this software
29 * must display the following acknowledgement:
30 * This product includes software developed by the University of
31 * California, Berkeley and its contributors.
32 * 4. Neither the name of the University nor the names of its contributors
33 * may be used to endorse or promote products derived from this software
34 * without specific prior written permission.
36 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
37 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
39 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
40 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
41 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
42 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
44 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
45 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 #include <protocols/dumprestore.h>
54 extern int cvtflag
; /* convert from old to new tape format */
55 extern int bflag
; /* set input block size */
56 extern int dflag
; /* print out debugging info */
57 extern int hflag
; /* restore heirarchies */
58 extern int mflag
; /* restore by name instead of inode number */
59 extern int Mflag
; /* multi-volume restore */
60 extern int Nflag
; /* do not write the disk */
61 extern int uflag
; /* unlink symlink targets */
62 extern int vflag
; /* print out actions taken */
63 extern int yflag
; /* always try to recover from tape errors */
67 extern char *dumpmap
; /* map of inodes on this dump tape */
68 extern char *usedinomap
; /* map of inodes that are in use on this fs */
69 extern ino_t maxino
; /* highest numbered inode in this file system */
70 extern long dumpnum
; /* location of the dump on this tape */
71 extern long volno
; /* current volume being read */
72 extern long ntrec
; /* number of TP_BSIZE records per tape block */
73 extern time_t dumptime
; /* time that this dump begins */
74 extern time_t dumpdate
; /* time that this dump was made */
75 extern char command
; /* opration being performed */
76 extern FILE *terminal
; /* file descriptor for the terminal input */
77 extern char *tmpdir
; /* name of temp directory */
78 extern int oldinofmt
; /* reading tape with old format inodes */
79 extern int Bcvt
; /* need byte swapping on inodes and dirs */
80 extern int compare_ignore_not_found
;
81 /* used to compare incremental dumps, */
82 /* so messages about "not found" files */
84 extern int compare_errors
; /* did we encounter any compare errors? */
85 extern char filesys
[NAMELEN
];/* name of dumped filesystem */
88 * Each file in the file system is described by one of these entries
91 char *e_name
; /* the current name of this entry */
92 u_char e_namlen
; /* length of this name */
93 char e_type
; /* type of this entry, see below */
94 short e_flags
; /* status flags, see below */
95 ino_t e_ino
; /* inode number in previous file sys */
96 long e_index
; /* unique index (for dumpped table) */
97 struct entry
*e_parent
; /* pointer to parent directory (..) */
98 struct entry
*e_sibling
; /* next element in this directory (.) */
99 struct entry
*e_links
; /* hard links to this inode */
100 struct entry
*e_entries
; /* for directories, their entries */
101 struct entry
*e_next
; /* hash chain list */
104 #define LEAF 1 /* non-directory entry */
105 #define NODE 2 /* directory entry */
106 #define LINK 4 /* synthesized type, stripped by addentry */
108 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */
109 #define NEW 0x0002 /* a new entry to be extracted */
110 #define KEEP 0x0004 /* entry is not to change */
111 #define REMOVED 0x0010 /* entry has been removed */
112 #define TMPNAME 0x0020 /* entry has been given a temporary name */
113 #define EXISTED 0x0040 /* directory already existed during extract */
116 * Constants associated with entry structs
120 #define TMPHDR "RSTTMP"
123 * The entry describes the next file available on the tape
126 char *name
; /* name of file */
127 ino_t ino
; /* inumber of file */
129 struct new_bsd_inode
*dip
; /* pointer to inode */
131 struct dinode
*dip
; /* pointer to inode */
133 char action
; /* action being taken on this file */
136 #define USING 1 /* extracting from the tape */
137 #define SKIP 2 /* skipping */
138 #define UNKNOWN 3 /* disposition or starting point is unknown */
141 * Definitions for library routines operating on directories.
143 typedef struct rstdirdesc RST_DIR
;
146 * Flags to setdirmodes.
153 #define TSTINO(ino, map) \
154 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY)))
155 #define SETINO(ino, map) \
156 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY)
158 #define Dprintf if (dflag) fprintf
159 #define Vprintf if (vflag) fprintf