1 /*- 2 * Copyright (c) 1980 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)dump.h 5.18 (Berkeley) 07/29/91 8 */ 9 10 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) 11 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) 12 13 /* 14 * Dump maps used to describe what is to be dumped. 15 */ 16 int mapsize; /* size of the state maps */ 17 char *usedinomap; /* map of allocated inodes */ 18 char *dumpdirmap; /* map of directories to be dumped */ 19 char *dumpinomap; /* map of files to be dumped */ 20 /* 21 * Map manipulation macros. 22 */ 23 #define SETINO(ino, map) \ 24 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 25 #define CLRINO(ino, map) \ 26 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) 27 #define TSTINO(ino, map) \ 28 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 29 30 /* 31 * All calculations done in 0.1" units! 32 */ 33 char *disk; /* name of the disk file */ 34 char *tape; /* name of the tape file */ 35 char *dumpdates; /* name of the file containing dump date information*/ 36 char *temp; /* name of the file for doing rewrite of dumpdates */ 37 char lastlevel; /* dump level of previous dump */ 38 char level; /* dump level of this dump */ 39 int uflag; /* update flag */ 40 int diskfd; /* disk file descriptor */ 41 int tapefd; /* tape file descriptor */ 42 int pipeout; /* true => output to standard output */ 43 ino_t curino; /* current inumber; used globally */ 44 int newtape; /* new tape flag */ 45 int density; /* density in 0.1" units */ 46 long tapesize; /* estimated tape size, blocks */ 47 long tsize; /* tape size in 0.1" units */ 48 long asize; /* number of 0.1" units written on current tape */ 49 int etapes; /* estimated number of tapes */ 50 51 int notify; /* notify operator flag */ 52 int blockswritten; /* number of blocks written on current tape */ 53 int tapeno; /* current tape number */ 54 time_t tstart_writing; /* when started writing the first tape block */ 55 char *processname; 56 struct fs *sblock; /* the file system super block */ 57 char buf[MAXBSIZE]; 58 long dev_bsize; /* block size of underlying disk device */ 59 int dev_bshift; /* log2(dev_bsize) */ 60 int tp_bshift; /* log2(TP_BSIZE) */ 61 62 /* operator interface functions */ 63 void broadcast(); 64 void lastdump(); 65 #if __STDC__ 66 void msg(const char *fmt, ...); 67 void msgtail(const char *fmt, ...); 68 void quit(const char *fmt, ...); 69 #else 70 void msg(); 71 void msgtail(); 72 void quit(); 73 #endif 74 int query(); 75 void set_operators(); 76 void timeest(); 77 78 /* mapping rouintes */ 79 long blockest(); 80 int mapfiles(); 81 int mapdirs(); 82 83 /* file dumping routines */ 84 void dirdump(); 85 void blksout(); 86 void dumpmap(); 87 void writeheader(); 88 void bread(); 89 90 /* tape writing routines */ 91 int alloctape(); 92 void writerec(); 93 void dumpblock(); 94 void flushtape(); 95 void trewind(); 96 void close_rewind(); 97 void startnewtape(); 98 99 void dumpabort(); 100 void Exit(); 101 void getfstab(); 102 103 char *rawname(); 104 struct dinode *getino(); 105 106 void interrupt(); /* in case operator bangs on console */ 107 108 /* 109 * Exit status codes 110 */ 111 #define X_FINOK 0 /* normal exit */ 112 #define X_REWRITE 2 /* restart writing from the check point */ 113 #define X_ABORT 3 /* abort all of dump; don't attempt checkpointing*/ 114 115 #define OPGRENT "operator" /* group entry to notify */ 116 #define DIALUP "ttyd" /* prefix for dialups */ 117 118 struct fstab *fstabsearch(); /* search in fs_file and fs_spec */ 119 120 /* 121 * The contents of the file _PATH_DUMPDATES is maintained both on 122 * a linked list, and then (eventually) arrayified. 123 */ 124 struct dumpdates { 125 char dd_name[NAME_MAX+3]; 126 char dd_level; 127 time_t dd_ddate; 128 }; 129 struct dumptime { 130 struct dumpdates dt_value; 131 struct dumptime *dt_next; 132 }; 133 struct dumptime *dthead; /* head of the list version */ 134 int nddates; /* number of records (might be zero) */ 135 int ddates_in; /* we have read the increment file */ 136 struct dumpdates **ddatev; /* the arrayfied version */ 137 void initdumptimes(); 138 void getdumptime(); 139 void putdumptime(); 140 #define ITITERATE(i, ddp) \ 141 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 142 143 /* 144 * We catch these interrupts 145 */ 146 void sighup(); 147 void sigquit(); 148 void sigill(); 149 void sigtrap(); 150 void sigfpe(); 151 void sigkill(); 152 void sigbus(); 153 void sigsegv(); 154 void sigsys(); 155 void sigalrm(); 156 void sigterm(); 157 158 /* 159 * Compatibility with old systems. 160 */ 161 #ifndef __STDC__ 162 #include <sys/file.h> 163 #define _PATH_FSTAB "/etc/fstab" 164 extern char *index(), *strdup(); 165 extern char *ctime(); 166 extern int errno; 167 #endif 168