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33 * @(#)dump.h 8.2 (Berkeley) 4/28/95
36 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode))
37 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t))
40 * Dump maps used to describe what is to be dumped.
42 int mapsize; /* size of the state maps */
43 char *usedinomap; /* map of allocated inodes */
44 char *dumpdirmap; /* map of directories to be dumped */
45 char *dumpinomap; /* map of files to be dumped */
47 * Map manipulation macros.
49 #define SETINO(ino, map) \
50 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY)
51 #define CLRINO(ino, map) \
52 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY))
53 #define TSTINO(ino, map) \
54 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY)))
57 * All calculations done in 0.1" units!
59 char *disk; /* name of the disk file */
60 char *tape; /* name of the tape file */
61 char *dumpdates; /* name of the file containing dump date information*/
62 char *temp; /* name of the file for doing rewrite of dumpdates */
63 char lastlevel; /* dump level of previous dump */
64 char level; /* dump level of this dump */
65 int uflag; /* update flag */
66 int diskfd; /* disk file descriptor */
67 int tapefd; /* tape file descriptor */
68 int pipeout; /* true => output to standard output */
69 ino_t curino; /* current inumber; used globally */
70 int newtape; /* new tape flag */
71 int density; /* density in 0.1" units */
72 long tapesize; /* estimated tape size, blocks */
73 long tsize; /* tape size in 0.1" units */
74 long asize; /* number of 0.1" units written on current tape */
75 int etapes; /* estimated number of tapes */
76 int nonodump; /* if set, do not honor UF_NODUMP user flags */
77 int unlimited; /* if set, write to end of medium */
79 int notify; /* notify operator flag */
80 int blockswritten; /* number of blocks written on current tape */
81 int tapeno; /* current tape number */
82 time_t tstart_writing; /* when started writing the first tape block */
83 time_t tend_writing; /* after writing the last tape block */
84 struct fs *sblock; /* the file system super block */
85 char sblock_buf[MAXBSIZE];
86 long dev_bsize; /* block size of underlying disk device */
87 int dev_bshift; /* log2(dev_bsize) */
88 int tp_bshift; /* log2(TP_BSIZE) */
91 #include <sys/cdefs.h>
94 /* operator interface functions */
95 void broadcast __P((char *message));
96 void lastdump __P((int arg)); /* int should be char */
97 void msg __P((const char *fmt, ...));
98 void msgtail __P((const char *fmt, ...));
99 int query __P((char *question));
100 void quit __P((const char *fmt, ...));
101 void set_operators __P((void));
102 void timeest __P((void));
103 time_t unctime __P((char *str));
105 /* mapping rouintes */
107 long blockest __P((struct dinode *dp));
108 int mapfiles __P((ino_t maxino, long *tapesize));
109 int mapdirs __P((ino_t maxino, long *tapesize));
111 /* file dumping routines */
112 void blksout __P((daddr_t *blkp, int frags, ino_t ino));
113 void bread __P((daddr_t blkno, char *buf, int size));
114 void dumpino __P((struct dinode *dp, ino_t ino));
115 void dumpmap __P((char *map, int type, ino_t ino));
116 void writeheader __P((ino_t ino));
118 /* tape writing routines */
119 int alloctape __P((void));
120 void close_rewind __P((void));
121 void dumpblock __P((daddr_t blkno, int size));
122 void startnewtape __P((int top));
123 void trewind __P((void));
124 void writerec __P((char *dp, int isspcl));
126 void Exit __P((int status)) __dead2;
127 void dumpabort __P((int signo));
128 void getfstab __P((void));
130 char *rawname __P((char *cp));
131 struct dinode *getino __P((ino_t inum));
135 void rmtclose __P((void));
136 int rmthost __P((char *host));
137 int rmtopen __P((char *tape, int mode));
138 int rmtwrite __P((char *buf, int count));
141 void interrupt __P((int signo)); /* in case operator bangs on console */
146 #define X_FINOK 0 /* normal exit */
147 #define X_STARTUP 1 /* startup error */
148 #define X_REWRITE 2 /* restart writing from the check point */
149 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */
151 #define OPGRENT "operator" /* group entry to notify */
152 #define DIALUP "ttyd" /* prefix for dialups */
154 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */
161 * The contents of the file _PATH_DUMPDATES is maintained both on
162 * a linked list, and then (eventually) arrayified.
165 char dd_name[NAME_MAX+3];
170 struct dumpdates dt_value;
171 struct dumptime *dt_next;
173 struct dumptime *dthead; /* head of the list version */
174 int nddates; /* number of records (might be zero) */
175 int ddates_in; /* we have read the increment file */
176 struct dumpdates **ddatev; /* the arrayfied version */
177 void initdumptimes __P((void));
178 void getdumptime __P((void));
179 void putdumptime __P((void));
180 #define ITITERATE(i, ddp) \
181 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
183 void sig __P((int signo));
186 * Compatibility with old systems.
189 #include <sys/file.h>
190 #define strchr(a,b) index(a,b)
191 #define strrchr(a,b) rindex(a,b)
192 extern char *strdup(), *ctime();
193 extern int read(), write();
198 #define _PATH_UTMP "/etc/utmp"
201 #define _PATH_FSTAB "/etc/fstab"
205 extern char *calloc();
206 extern char *malloc();
208 extern char *strcpy();
209 extern char *strncpy();
210 extern char *strcat();
211 extern time_t time();
212 extern void endgrent();
214 extern off_t lseek();
215 extern const char *strerror();