/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Flags */ extern int bflag; /* set input block size */ extern int dflag; /* print out debugging info */ extern int Dflag; /* degraded mode - try hard to get stuff back */ extern int hflag; /* restore hierarchies */ extern int mflag; /* restore by name instead of inode number */ extern int Nflag; /* do not write the disk */ extern int uflag; /* unlink symlink targets */ extern int vflag; /* print out actions taken */ extern int yflag; /* always try to recover from tape errors */ /* * Global variables */ extern char *dumpmap; /* map of inodes on this dump tape */ extern char *usedinomap; /* map of inodes that are in use on this fs */ extern ino_t maxino; /* highest numbered inode in this file system */ extern long dumpnum; /* location of the dump on this tape */ extern long volno; /* current volume being read */ extern long ntrec; /* number of TP_BSIZE records per tape block */ extern time_t dumptime; /* time that this dump begins */ extern time_t dumpdate; /* time that this dump was made */ extern char command; /* operation being performed */ extern FILE *terminal; /* file descriptor for the terminal input */ extern int Bcvt; /* need byte swapping on inodes and dirs */ extern int oldinofmt; /* reading tape with FreeBSD 1 format inodes */ /* * Each file in the file system is described by one of these entries */ struct entry { char *e_name; /* the current name of this entry */ u_char e_namlen; /* length of this name */ char e_type; /* type of this entry, see below */ short e_flags; /* status flags, see below */ ino_t e_ino; /* inode number in previous file sys */ long e_index; /* unique index (for dumped table) */ struct entry *e_parent; /* pointer to parent directory (..) */ struct entry *e_sibling; /* next element in this directory (.) */ struct entry *e_links; /* hard links to this inode */ struct entry *e_entries; /* for directories, their entries */ struct entry *e_next; /* hash chain list */ }; /* types */ #define LEAF 1 /* non-directory entry */ #define NODE 2 /* directory entry */ #define LINK 4 /* synthesized type, stripped by addentry */ /* flags */ #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ #define NEW 0x0002 /* a new entry to be extracted */ #define KEEP 0x0004 /* entry is not to change */ #define REMOVED 0x0010 /* entry has been removed */ #define TMPNAME 0x0020 /* entry has been given a temporary name */ #define EXISTED 0x0040 /* directory already existed during extract */ /* * Constants associated with entry structs */ #define HARDLINK 1 #define SYMLINK 2 #define TMPHDR "RSTTMP" /* * The entry describes the next file available on the tape */ extern struct context { short action; /* action being taken on this file */ mode_t mode; /* mode of file */ ino_t ino; /* inumber of file */ uid_t uid; /* file owner */ gid_t gid; /* file group */ int file_flags; /* status flags (chflags) */ int rdev; /* device number of file */ time_t atime_sec; /* access time seconds */ time_t mtime_sec; /* modified time seconds */ time_t birthtime_sec; /* creation time seconds */ int atime_nsec; /* access time nanoseconds */ int mtime_nsec; /* modified time nanoseconds */ int birthtime_nsec; /* creation time nanoseconds */ int extsize; /* size of extended attribute data */ off_t size; /* size of file */ char *name; /* name of file */ } curfile; /* actions */ #define USING 1 /* extracting from the tape */ #define SKIP 2 /* skipping */ #define UNKNOWN 3 /* disposition or starting point is unknown */ /* * Definitions for library routines operating on directories. */ typedef struct rstdirdesc RST_DIR; /* * Flags to setdirmodes. */ #define FORCE 0x0001 /* * Useful macros */ #define TSTINO(ino, map) \ (map[(u_int)((ino) - 1) / CHAR_BIT] & \ (1 << ((u_int)((ino) - 1) % CHAR_BIT))) #define SETINO(ino, map) \ map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 1 << ((u_int)((ino) - 1) % CHAR_BIT) #define dprintf if (dflag) fprintf #define vprintf if (vflag) fprintf #define GOOD 1 #define FAIL 0 #define NFS_DR_NEWINODEFMT 0x2 /* Tape uses 4.4 BSD inode format */
