1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)restore.h 5.8 (Berkeley) 06/01/90 8 */ 9 10 #include <stdio.h> 11 #include <sys/param.h> 12 #include <sys/time.h> 13 #include <ufs/dinode.h> 14 #include <ufs/fs.h> 15 16 /* 17 * Flags 18 */ 19 extern int cvtflag; /* convert from old to new tape format */ 20 extern int bflag; /* set input block size */ 21 extern int dflag; /* print out debugging info */ 22 extern int hflag; /* restore heirarchies */ 23 extern int mflag; /* restore by name instead of inode number */ 24 extern int Nflag; /* do not write the disk */ 25 extern int vflag; /* print out actions taken */ 26 extern int yflag; /* always try to recover from tape errors */ 27 /* 28 * Global variables 29 */ 30 extern char *dumpmap; /* map of inodes on this dump tape */ 31 extern char *clrimap; /* map of inodes to be deleted */ 32 extern ino_t maxino; /* highest numbered inode in this file system */ 33 extern long dumpnum; /* location of the dump on this tape */ 34 extern long volno; /* current volume being read */ 35 extern long ntrec; /* number of TP_BSIZE records per tape block */ 36 extern time_t dumptime; /* time that this dump begins */ 37 extern time_t dumpdate; /* time that this dump was made */ 38 extern char command; /* opration being performed */ 39 extern FILE *terminal; /* file descriptor for the terminal input */ 40 41 /* 42 * Each file in the file system is described by one of these entries 43 */ 44 struct entry { 45 char *e_name; /* the current name of this entry */ 46 u_char e_namlen; /* length of this name */ 47 char e_type; /* type of this entry, see below */ 48 short e_flags; /* status flags, see below */ 49 ino_t e_ino; /* inode number in previous file sys */ 50 long e_index; /* unique index (for dumpped table) */ 51 struct entry *e_parent; /* pointer to parent directory (..) */ 52 struct entry *e_sibling; /* next element in this directory (.) */ 53 struct entry *e_links; /* hard links to this inode */ 54 struct entry *e_entries; /* for directories, their entries */ 55 struct entry *e_next; /* hash chain list */ 56 }; 57 /* types */ 58 #define LEAF 1 /* non-directory entry */ 59 #define NODE 2 /* directory entry */ 60 #define LINK 4 /* synthesized type, stripped by addentry */ 61 /* flags */ 62 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 63 #define NEW 0x0002 /* a new entry to be extracted */ 64 #define KEEP 0x0004 /* entry is not to change */ 65 #define REMOVED 0x0010 /* entry has been removed */ 66 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 67 #define EXISTED 0x0040 /* directory already existed during extract */ 68 /* 69 * functions defined on entry structs 70 */ 71 extern struct entry *lookupino(); 72 extern struct entry *lookupname(); 73 extern struct entry *lookupparent(); 74 extern struct entry *addentry(); 75 extern char *myname(); 76 extern char *savename(); 77 extern char *gentempname(); 78 extern char *flagvalues(); 79 extern ino_t lowerbnd(); 80 extern ino_t upperbnd(); 81 #define NIL ((struct entry *)(0)) 82 /* 83 * Constants associated with entry structs 84 */ 85 #define HARDLINK 1 86 #define SYMLINK 2 87 #define TMPHDR "RSTTMP" 88 89 /* 90 * The entry describes the next file available on the tape 91 */ 92 struct context { 93 char *name; /* name of file */ 94 ino_t ino; /* inumber of file */ 95 struct dinode *dip; /* pointer to inode */ 96 char action; /* action being taken on this file */ 97 } curfile; 98 /* actions */ 99 #define USING 1 /* extracting from the tape */ 100 #define SKIP 2 /* skipping */ 101 #define UNKNOWN 3 /* disposition or starting point is unknown */ 102 103 /* 104 * Definitions for library routines operating on directories. 105 */ 106 typedef struct dirdesc DIR; 107 extern DIR *rst_opendir(); 108 extern struct direct *rst_readdir(); 109 110 /* 111 * Other exported routines 112 */ 113 extern ino_t psearch(); 114 extern ino_t dirlookup(); 115 extern long listfile(); 116 extern long deletefile(); 117 extern long addfile(); 118 extern long nodeupdates(); 119 extern long verifyfile(); 120 extern char *rindex(); 121 extern char *index(); 122 extern char *strcat(); 123 extern char *strncat(); 124 extern char *strcpy(); 125 extern char *strncpy(); 126 extern char *fgets(); 127 extern char *mktemp(); 128 extern char *malloc(); 129 extern char *calloc(); 130 extern char *realloc(); 131 extern long lseek(); 132 133 /* 134 * Useful macros 135 */ 136 #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY]) 137 #define MBIT(i) (1<<((unsigned)(i-1)%NBBY)) 138 #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) 139 #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) 140 #define BIT(i,w) (MWORD(w,i) & MBIT(i)) 141 142 #define dprintf if (dflag) fprintf 143 #define vprintf if (vflag) fprintf 144 145 #define GOOD 1 146 #define FAIL 0 147