dump.h revision 1.6
1 /*- 2 * Copyright (c) 1980 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)dump.h 5.21 (Berkeley) 7/16/92 34 * $Id: dump.h,v 1.6 1993/12/22 10:24:39 cgd Exp $ 35 */ 36 37 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) 38 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) 39 40 /* 41 * Dump maps used to describe what is to be dumped. 42 */ 43 int mapsize; /* size of the state maps */ 44 char *usedinomap; /* map of allocated inodes */ 45 char *dumpdirmap; /* map of directories to be dumped */ 46 char *dumpinomap; /* map of files to be dumped */ 47 /* 48 * Map manipulation macros. 49 */ 50 #define SETINO(ino, map) \ 51 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 52 #define CLRINO(ino, map) \ 53 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) 54 #define TSTINO(ino, map) \ 55 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 56 57 /* 58 * All calculations done in 0.1" units! 59 */ 60 char *disk; /* name of the disk file */ 61 char *tape; /* name of the tape file */ 62 char *dumpdates; /* name of the file containing dump date information*/ 63 char *temp; /* name of the file for doing rewrite of dumpdates */ 64 char lastlevel; /* dump level of previous dump */ 65 char level; /* dump level of this dump */ 66 int uflag; /* update flag */ 67 int diskfd; /* disk file descriptor */ 68 int tapefd; /* tape file descriptor */ 69 int pipeout; /* true => output to standard output */ 70 ino_t curino; /* current inumber; used globally */ 71 int newtape; /* new tape flag */ 72 int density; /* density in 0.1" units */ 73 long tapesize; /* estimated tape size, blocks */ 74 long tsize; /* tape size in 0.1" units */ 75 long asize; /* number of 0.1" units written on current tape */ 76 int etapes; /* estimated number of tapes */ 77 78 int notify; /* notify operator flag */ 79 int blockswritten; /* number of blocks written on current tape */ 80 int tapeno; /* current tape number */ 81 time_t tstart_writing; /* when started writing the first tape block */ 82 struct fs *sblock; /* the file system super block */ 83 char sblock_buf[MAXBSIZE]; 84 long dev_bsize; /* block size of underlying disk device */ 85 int dev_bshift; /* log2(dev_bsize) */ 86 int tp_bshift; /* log2(TP_BSIZE) */ 87 88 /* operator interface functions */ 89 void broadcast __P((char *message)); 90 void lastdump __P((int arg)); /* int should be char */ 91 void msg __P((const char *fmt, ...)); 92 void msgtail __P((const char *fmt, ...)); 93 int query __P((char *question)); 94 void quit __P((const char *fmt, ...)); 95 void set_operators __P((void)); 96 void timeest __P((void)); 97 time_t unctime __P((char *str)); 98 99 /* mapping rouintes */ 100 struct dinode; 101 long blockest __P((struct dinode *dp)); 102 int mapfiles __P((ino_t maxino, long *tapesize)); 103 int mapdirs __P((ino_t maxino, long *tapesize)); 104 105 /* file dumping routines */ 106 void blksout __P((daddr_t *blkp, int frags, ino_t ino)); 107 void bread __P((daddr_t blkno, char *buf, int size)); 108 void dumpino __P((struct dinode *dp, ino_t ino)); 109 void dumpmap __P((char *map, int type, ino_t ino)); 110 void writeheader __P((ino_t ino)); 111 112 /* tape writing routines */ 113 int alloctape __P((void)); 114 void close_rewind __P((void)); 115 void dumpblock __P((daddr_t blkno, int size)); 116 void flushtape __P((void)); 117 void startnewtape __P((int top)); 118 void trewind __P((void)); 119 void writerec __P((char *dp, int isspcl)); 120 121 void Exit __P((int status)); 122 void dumpabort __P((int signo)); 123 void getfstab __P((void)); 124 125 char *rawname __P((char *cp)); 126 struct dinode *getino __P((ino_t inum)); 127 128 void interrupt __P((int signo)); /* in case operator bangs on console */ 129 130 /* 131 * Exit status codes 132 */ 133 #define X_FINOK 0 /* normal exit */ 134 #define X_REWRITE 2 /* restart writing from the check point */ 135 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 136 137 #define OPGRENT "operator" /* group entry to notify */ 138 #define DIALUP "ttyd" /* prefix for dialups */ 139 140 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ 141 142 #ifndef NAME_MAX 143 #define NAME_MAX 255 144 #endif 145 146 /* 147 * The contents of the file _PATH_DUMPDATES is maintained both on 148 * a linked list, and then (eventually) arrayified. 149 */ 150 struct dumpdates { 151 char dd_name[NAME_MAX+3]; 152 char dd_level; 153 time_t dd_ddate; 154 }; 155 struct dumptime { 156 struct dumpdates dt_value; 157 struct dumptime *dt_next; 158 }; 159 struct dumptime *dthead; /* head of the list version */ 160 int nddates; /* number of records (might be zero) */ 161 int ddates_in; /* we have read the increment file */ 162 struct dumpdates **ddatev; /* the arrayfied version */ 163 void initdumptimes __P((void)); 164 void getdumptime __P((void)); 165 void putdumptime __P((void)); 166 #define ITITERATE(i, ddp) \ 167 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 168 169 void sig __P((int signo)); 170 171 /* 172 * Compatibility with old systems. 173 */ 174 #ifndef __STDC__ 175 #include <sys/file.h> 176 #define _PATH_FSTAB "/etc/fstab" 177 extern char *index(), *strdup(); 178 extern char *ctime(); 179 extern int errno; 180 #endif 181 182 #ifdef sunos 183 extern char *calloc(); 184 extern char *malloc(); 185 extern long atol(); 186 extern char *strcpy(); 187 extern char *strncpy(); 188 extern char *strcat(); 189 extern time_t time(); 190 extern void endgrent(); 191 extern void exit(); 192 extern off_t lseek(); 193 extern char *strerror(); 194 #endif 195
Indexes created Thu Sep 25 06:09:39 GMT 2025