1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32/* 33 * Dump maps used to describe what is to be dumped. 34 */ 35extern int mapsize; /* size of the state maps */ 36extern char *usedinomap; /* map of allocated inodes */ 37extern char *dumpdirmap; /* map of directories to be dumped */ 38extern char *dumpinomap; /* map of files to be dumped */ 39/* 40 * Map manipulation macros. 41 */ 42#define SETINO(ino, map) \ 43 map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 44 1 << ((u_int)((ino) - 1) % CHAR_BIT) 45#define CLRINO(ino, map) \ 46 map[(u_int)((ino) - 1) / CHAR_BIT] &= \ 47 ~(1 << ((u_int)((ino) - 1) % CHAR_BIT)) 48#define TSTINO(ino, map) \ 49 (map[(u_int)((ino) - 1) / CHAR_BIT] & \ 50 (1 << ((u_int)((ino) - 1) % CHAR_BIT))) 51 52/* 53 * All calculations done in 0.1" units! 54 */ 55extern char *disk; /* name of the disk file */ 56extern char *tape; /* name of the tape file */ 57extern char *popenout; /* popen(3) per-"tape" command */ 58extern char *dumpdates; /* name of the file containing dump date info */ 59extern int lastlevel; /* dump level of previous dump */ 60extern int level; /* dump level of this dump */ 61extern int uflag; /* update flag */ 62extern int diskfd; /* disk file descriptor */ 63extern int pipeout; /* true => output to standard output */ 64extern ino_t curino; /* current inumber; used globally */ 65extern int newtape; /* new tape flag */ 66extern int density; /* density in 0.1" units */ 67extern long tapesize; /* estimated tape size, blocks */ 68extern long tsize; /* tape size in 0.1" units */ 69extern int etapes; /* estimated number of tapes */ 70extern int nonodump; /* if set, do not honor UF_NODUMP user flags */ 71extern int unlimited; /* if set, write to end of medium */ 72extern int cachesize; /* size of block cache in bytes */ 73extern int rsync_friendly; /* be friendly with rsync */ 74extern int notify; /* notify operator flag */ 75extern int blockswritten; /* number of blocks written on current tape */ 76extern int tapeno; /* current tape number */ 77extern int ntrec; /* blocking factor on tape */ 78extern long blocksperfile; /* number of blocks per output file */ 79extern int cartridge; /* assume non-cartridge tape */ 80extern char *host; /* remote host (if any) */ 81extern time_t tstart_writing; /* when started writing the first tape block */ 82extern time_t tend_writing; /* after writing the last tape block */ 83extern int passno; /* current dump pass number */ 84extern struct fs *sblock; /* the file system super block */ 85extern long dev_bsize; /* block size of underlying disk device */ 86extern int dev_bshift; /* log2(dev_bsize) */ 87extern int tp_bshift; /* log2(TP_BSIZE) */ 88 89/* operator interface functions */ 90void broadcast(const char *message); 91void infosch(int); 92void lastdump(int arg); /* int should be char */ 93void msg(const char *fmt, ...) __printflike(1, 2); 94void msgtail(const char *fmt, ...) __printflike(1, 2); 95int query(const char *question); 96void quit(const char *fmt, ...) __printflike(1, 2); 97void timeest(void); 98time_t unctime(char *str); 99 100/* mapping routines */ 101union dinode; 102int mapfiles(ino_t maxino, long *tapesize); 103int mapdirs(ino_t maxino, long *tapesize); 104 105/* file dumping routines */ 106void blkread(ufs2_daddr_t blkno, char *buf, int size); 107ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset); 108void dumpino(union dinode *dp, ino_t ino); 109void dumpmap(char *map, int type, ino_t ino); 110void writeheader(ino_t ino); 111 112/* tape writing routines */ 113int alloctape(void); 114void close_rewind(void); 115void dumpblock(ufs2_daddr_t blkno, int size); 116void startnewtape(int top); 117void trewind(void); 118void writerec(char *dp, int isspcl); 119 120void Exit(int status) __dead2; 121void dumpabort(int signo) __dead2; 122void dump_getfstab(void); 123 124char *rawname(char *cp); 125union dinode *getino(ino_t inum, int *mode); 126 127/* rdump routines */ 128#ifdef RDUMP 129void rmtclose(void); 130int rmthost(const char *host); 131int rmtopen(const char *tape, int mode); 132int rmtwrite(const char *buf, int count); 133#endif /* RDUMP */ 134 135void interrupt(int signo); /* in case operator bangs on console */ 136 137/* 138 * Exit status codes 139 */ 140#define X_FINOK 0 /* normal exit */ 141#define X_STARTUP 1 /* startup error */ 142#define X_REWRITE 2 /* restart writing from the check point */ 143#define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 144 145#define OPGRENT "operator" /* group entry to notify */ 146 147struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */ 148 149#ifndef NAME_MAX 150#define NAME_MAX 255 151#endif 152 153/* 154 * The contents of the file _PATH_DUMPDATES is maintained both on 155 * a linked list, and then (eventually) arrayified. 156 */ 157struct dumpdates { 158 char dd_name[NAME_MAX+3]; 159 int dd_level; 160 time_t dd_ddate; 161}; 162extern int nddates; /* number of records (might be zero) */ 163extern struct dumpdates **ddatev; /* the arrayfied version */ 164void initdumptimes(void); 165void getdumptime(void); 166void putdumptime(void); 167#define ITITERATE(i, ddp) \ 168 if (ddatev != NULL) \ 169 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 170 171#define DUMPFMTLEN 53 /* max device pathname length */ 172#define DUMPOUTFMT "%-*s %d %s" /* for printf */ 173 /* name, level, ctime(date) */ 174#define DUMPINFMT "%s %d %[^\n]\n" /* inverse for scanf */ 175 176void sig(int signo); 177 178#ifndef _PATH_FSTAB 179#define _PATH_FSTAB "/etc/fstab" 180#endif 181