projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| e0519353 KM |
1 | /* Copyright (c) 1983 Regents of the University of California */ |
| 2 | ||
| 3 | /* @(#)restore.h 3.3 (Berkeley) 83/01/16 */ | |
| 4 | ||
| 5 | #include <stdio.h> | |
| 6 | #include <sys/param.h> | |
| 7 | #include <sys/inode.h> | |
| 8 | #include <sys/fs.h> | |
| 9 | ||
| 10 | /* | |
| 11 | * Flags | |
| 12 | */ | |
| 13 | extern int cvtflag; /* convert from old to new tape format */ | |
| 14 | extern int dflag; /* print out debugging info */ | |
| 15 | extern int hflag; /* restore heirarchies */ | |
| 16 | extern int mflag; /* restore by name instead of inode number */ | |
| 17 | extern int vflag; /* print out actions taken */ | |
| 18 | extern int yflag; /* always try to recover from tape errors */ | |
| 19 | /* | |
| 20 | * Global variables | |
| 21 | */ | |
| 22 | extern char *dumpmap; /* map of inodes on this dump tape */ | |
| 23 | extern char *clrimap; /* map of inodes to be deleted */ | |
| 24 | extern ino_t maxino; /* highest numbered inode in this file system */ | |
| 25 | extern long dumpnum; /* location of the dump on this tape */ | |
| 26 | extern long volno; /* current volume being read */ | |
| 27 | extern time_t dumptime; /* time that this dump begins */ | |
| 28 | extern time_t dumpdate; /* time that this dump was made */ | |
| 29 | extern char command; /* opration being performed */ | |
| 30 | ||
| 31 | /* | |
| 32 | * Each file in the file system is described by one of these entries | |
| 33 | */ | |
| 34 | struct entry { | |
| 35 | char *e_name; /* the current name of this entry */ | |
| 36 | u_char e_namlen; /* length of this name */ | |
| 37 | char e_type; /* type of this entry, see below */ | |
| 38 | short e_flags; /* status flags, see below */ | |
| 39 | ino_t e_ino; /* inode number in previous file sys */ | |
| 40 | long e_index; /* unique index (for dumpped table) */ | |
| 41 | struct entry *e_parent; /* pointer to parent directory (..) */ | |
| 42 | struct entry *e_sibling; /* next element in this directory (.) */ | |
| 43 | struct entry *e_links; /* hard links to this inode */ | |
| 44 | struct entry *e_entries; /* for directories, their entries */ | |
| 45 | struct entry *e_next; /* hash chain list */ | |
| 46 | }; | |
| 47 | /* types */ | |
| 48 | #define LEAF 1 /* non-directory entry */ | |
| 49 | #define NODE 2 /* directory entry */ | |
| 50 | #define LINK 4 /* synthesized type, stripped by addentry */ | |
| 51 | /* flags */ | |
| 52 | #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ | |
| 53 | #define NEW 0x0002 /* a new entry to be extracted */ | |
| 54 | #define KEEP 0x0004 /* entry is not to change */ | |
| 55 | #define REMOVED 0x0010 /* entry has been removed */ | |
| 56 | #define TMPNAME 0x0020 /* entry has been given a temporary name */ | |
| 57 | /* | |
| 58 | * functions defined on entry structs | |
| 59 | */ | |
| 60 | extern struct entry *lookupino(); | |
| 61 | extern struct entry *lookupname(); | |
| 62 | extern struct entry *lookupparent(); | |
| 63 | extern struct entry *addentry(); | |
| 64 | extern char *myname(); | |
| 65 | extern char *savename(); | |
| 66 | extern ino_t lowerbnd(); | |
| 67 | extern ino_t upperbnd(); | |
| 68 | #define NIL ((struct entry *)(0)) | |
| 69 | /* | |
| 70 | * Constants associated with entry structs | |
| 71 | */ | |
| 72 | #define HARDLINK 1 | |
| 73 | #define SYMLINK 2 | |
| 74 | #define TMPCHAR (0x01) | |
| 75 | ||
| 76 | /* | |
| 77 | * The entry describes the next file available on the tape | |
| 78 | */ | |
| 79 | struct context { | |
| 80 | char *name; /* name of file */ | |
| 81 | ino_t ino; /* inumber of file */ | |
| 82 | struct dinode *dip; /* pointer to inode */ | |
| 83 | char action; /* action being taken on this file */ | |
| 84 | } curfile; | |
| 85 | /* actions */ | |
| 86 | #define USING 1 /* extracting from the tape */ | |
| 87 | #define SKIP 2 /* skipping */ | |
| 88 | #define UNKNOWN 3 /* disposition or starting point is unknown */ | |
| 89 | ||
| 90 | /* | |
| 91 | * Other exported routines | |
| 92 | */ | |
| 93 | extern ino_t psearch(); | |
| 94 | extern void listfile(); | |
| 95 | extern void addfile(); | |
| 96 | extern void nodeupdates(); | |
| 97 | extern void verifyfile(); | |
| 98 | extern char *rindex(); | |
| 99 | extern char *index(); | |
| 100 | extern char *strcat(); | |
| 101 | extern char *strcpy(); | |
| 102 | extern char *mktemp(); | |
| 103 | extern char *malloc(); | |
| 104 | extern char *calloc(); | |
| 105 | extern long lseek(); | |
| 106 | ||
| 107 | /* | |
| 108 | * Useful macros | |
| 109 | */ | |
| 110 | #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY]) | |
| 111 | #define MBIT(i) (1<<((unsigned)(i-1)%NBBY)) | |
| 112 | #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) | |
| 113 | #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) | |
| 114 | #define BIT(i,w) (MWORD(w,i) & MBIT(i)) | |
| 115 | ||
| 116 | #define dprintf if (dflag) fprintf | |
| 117 | #define vprintf if (vflag) fprintf | |
| 118 | ||
| 119 | #define GOOD 1 | |
| 120 | #define FAIL 0 |