restore.h revision 1.16
1 /* $NetBSD: restore.h,v 1.16 2004/10/22 22:38:38 bouyer 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)restore.h 8.3 (Berkeley) 9/13/94 37 */ 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; /* output digest of files */ 45 extern int dflag; /* print out debugging info */ 46 extern int hflag; /* restore hierarchies */ 47 extern int mflag; /* restore by name instead of inode number */ 48 extern int Nflag; /* do not write the disk */ 49 extern int vflag; /* print out actions taken */ 50 extern int uflag; /* unlink file before writing to it */ 51 extern int yflag; /* always try to recover from tape errors */ 52 /* 53 * Global variables 54 */ 55 extern char *dumpmap; /* map of inodes on this dump tape */ 56 extern char *usedinomap; /* map of inodes that are in use on this fs */ 57 extern ino_t maxino; /* highest numbered inode in this file system */ 58 extern int32_t dumpnum; /* location of the dump on this tape */ 59 extern int32_t volno; /* current volume being read */ 60 extern int32_t ntrec; /* number of TP_BSIZE records per tape block */ 61 extern time_t dumptime; /* time that this dump begins */ 62 extern time_t dumpdate; /* time that this dump was made */ 63 extern char command; /* opration being performed */ 64 extern size_t pagesize; /* system page size */ 65 extern FILE *terminal; /* file descriptor for the terminal input */ 66 extern char *tmpdir; /* where to store temporary files */ 67 extern int oldinofmt; /* reading tape with old format inodes */ 68 extern int Bcvt; /* need byte swapping on inodes and dirs */ 69 extern FILE *Mtreefile; /* file descriptor for the mtree file */ 70 71 struct digest_desc { 72 const char *dd_name; 73 void (*dd_init)(void *); 74 void (*dd_update)(void *, const u_char *, u_int); 75 char *(*dd_end)(void *, void *); 76 }; 77 extern const struct digest_desc *ddesc; 78 extern const struct digest_desc md5_desc; 79 extern const struct digest_desc rmd160_desc; 80 extern const struct digest_desc sha1_desc; 81 82 /* 83 * Each file in the file system is described by one of these entries 84 */ 85 struct entry { 86 char *e_name; /* the current name of this entry */ 87 u_char e_namlen; /* length of this name */ 88 char e_type; /* type of this entry, see below */ 89 int16_t e_flags; /* status flags, see below */ 90 ino_t e_ino; /* inode number in previous file sys */ 91 int32_t e_index; /* unique index (for dumped table) */ 92 struct entry *e_parent; /* pointer to parent directory (..) */ 93 struct entry *e_sibling; /* next element in this directory (.) */ 94 struct entry *e_links; /* hard links to this inode */ 95 struct entry *e_entries; /* for directories, their entries */ 96 struct entry *e_next; /* hash chain list */ 97 }; 98 /* types */ 99 #define LEAF 1 /* non-directory entry */ 100 #define NODE 2 /* directory entry */ 101 #define LINK 4 /* synthesized type, stripped by addentry */ 102 /* flags */ 103 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 104 #define NEW 0x0002 /* a new entry to be extracted */ 105 #define KEEP 0x0004 /* entry is not to change */ 106 #define REMOVED 0x0010 /* entry has been removed */ 107 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 108 #define EXISTED 0x0040 /* directory already existed during extract */ 109 110 /* 111 * Constants associated with entry structs 112 */ 113 #define HARDLINK 1 114 #define SYMLINK 2 115 #define TMPHDR "RSTTMP" 116 117 /* 118 * The entry describes the next file available on the tape 119 */ 120 struct context { 121 short action; /* action being taken on this file */ 122 mode_t mode; /* mode of file */ 123 ino_t ino; /* inumber of file */ 124 uid_t uid; /* file owner */ 125 gid_t gid; /* file group */ 126 int file_flags; /* status flags (chflags) */ 127 int rdev; /* device number of file */ 128 time_t atime_sec; /* access time seconds */ 129 time_t mtime_sec; /* modified time seconds */ 130 time_t birthtime_sec; /* creation time seconds */ 131 int atime_nsec; /* access time nanoseconds */ 132 int mtime_nsec; /* modified time nanoseconds */ 133 int birthtime_nsec; /* creation time nanoseconds */ 134 off_t size; /* size of file */ 135 char *name; /* name of file */ 136 } curfile; 137 /* actions */ 138 #define USING 1 /* extracting from the tape */ 139 #define SKIP 2 /* skipping */ 140 #define UNKNOWN 3 /* disposition or starting point is unknown */ 141 142 /* 143 * Definitions for library routines operating on directories. 144 */ 145 typedef struct rstdirdesc RST_DIR; 146 147 /* 148 * Flags to setdirmodes. 149 */ 150 #define FORCE 0x0001 151 152 /* 153 * Useful macros 154 */ 155 #define TSTINO(ino, map) \ 156 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 157 #define SETINO(ino, map) \ 158 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 159 160 #define dprintf if (dflag) fprintf 161 #define vprintf if (vflag) fprintf 162 163 #define GOOD 1 164 #define FAIL 0 165
Indexes created Tue Sep 30 10:09:55 GMT 2025