restore.h revision 1.15
1 /* $NetBSD: restore.h,v 1.15 2004/07/27 02:17:06 enami 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 70 struct digest_desc { 71 const char *dd_name; 72 void (*dd_init)(void *); 73 void (*dd_update)(void *, const u_char *, u_int); 74 char *(*dd_end)(void *, void *); 75 }; 76 extern const struct digest_desc *ddesc; 77 extern const struct digest_desc md5_desc; 78 extern const struct digest_desc rmd160_desc; 79 extern const struct digest_desc sha1_desc; 80 81 /* 82 * Each file in the file system is described by one of these entries 83 */ 84 struct entry { 85 char *e_name; /* the current name of this entry */ 86 u_char e_namlen; /* length of this name */ 87 char e_type; /* type of this entry, see below */ 88 int16_t e_flags; /* status flags, see below */ 89 ino_t e_ino; /* inode number in previous file sys */ 90 int32_t e_index; /* unique index (for dumped table) */ 91 struct entry *e_parent; /* pointer to parent directory (..) */ 92 struct entry *e_sibling; /* next element in this directory (.) */ 93 struct entry *e_links; /* hard links to this inode */ 94 struct entry *e_entries; /* for directories, their entries */ 95 struct entry *e_next; /* hash chain list */ 96 }; 97 /* types */ 98 #define LEAF 1 /* non-directory entry */ 99 #define NODE 2 /* directory entry */ 100 #define LINK 4 /* synthesized type, stripped by addentry */ 101 /* flags */ 102 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 103 #define NEW 0x0002 /* a new entry to be extracted */ 104 #define KEEP 0x0004 /* entry is not to change */ 105 #define REMOVED 0x0010 /* entry has been removed */ 106 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 107 #define EXISTED 0x0040 /* directory already existed during extract */ 108 109 /* 110 * Constants associated with entry structs 111 */ 112 #define HARDLINK 1 113 #define SYMLINK 2 114 #define TMPHDR "RSTTMP" 115 116 /* 117 * The entry describes the next file available on the tape 118 */ 119 struct context { 120 short action; /* action being taken on this file */ 121 mode_t mode; /* mode of file */ 122 ino_t ino; /* inumber of file */ 123 uid_t uid; /* file owner */ 124 gid_t gid; /* file group */ 125 int file_flags; /* status flags (chflags) */ 126 int rdev; /* device number of file */ 127 time_t atime_sec; /* access time seconds */ 128 time_t mtime_sec; /* modified time seconds */ 129 time_t birthtime_sec; /* creation time seconds */ 130 int atime_nsec; /* access time nanoseconds */ 131 int mtime_nsec; /* modified time nanoseconds */ 132 int birthtime_nsec; /* creation time nanoseconds */ 133 off_t size; /* size of file */ 134 char *name; /* name of file */ 135 } curfile; 136 /* actions */ 137 #define USING 1 /* extracting from the tape */ 138 #define SKIP 2 /* skipping */ 139 #define UNKNOWN 3 /* disposition or starting point is unknown */ 140 141 /* 142 * Definitions for library routines operating on directories. 143 */ 144 typedef struct rstdirdesc RST_DIR; 145 146 /* 147 * Flags to setdirmodes. 148 */ 149 #define FORCE 0x0001 150 151 /* 152 * Useful macros 153 */ 154 #define TSTINO(ino, map) \ 155 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 156 #define SETINO(ino, map) \ 157 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 158 159 #define dprintf if (dflag) fprintf 160 #define vprintf if (vflag) fprintf 161 162 #define GOOD 1 163 #define FAIL 0 164
Indexes created Tue Sep 30 20:09:53 GMT 2025