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 5.12 (Berkeley) 08/09/92 8 */ 9 10 #include <sys/param.h> 11 #include <sys/time.h> 12 #include <ufs/ufs/dinode.h> 13 #include <ufs/ffs/fs.h> 14 #include <stdio.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 extern int oldinofmt; /* reading tape with old format inodes */ 41 extern int Bcvt; /* need byte swapping on inodes and dirs */ 42 43 /* 44 * Each file in the file system is described by one of these entries 45 */ 46 struct entry { 47 char *e_name; /* the current name of this entry */ 48 u_char e_namlen; /* length of this name */ 49 char e_type; /* type of this entry, see below */ 50 short e_flags; /* status flags, see below */ 51 ino_t e_ino; /* inode number in previous file sys */ 52 long e_index; /* unique index (for dumpped table) */ 53 struct entry *e_parent; /* pointer to parent directory (..) */ 54 struct entry *e_sibling; /* next element in this directory (.) */ 55 struct entry *e_links; /* hard links to this inode */ 56 struct entry *e_entries; /* for directories, their entries */ 57 struct entry *e_next; /* hash chain list */ 58 }; 59 /* types */ 60 #define LEAF 1 /* non-directory entry */ 61 #define NODE 2 /* directory entry */ 62 #define LINK 4 /* synthesized type, stripped by addentry */ 63 /* flags */ 64 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 65 #define NEW 0x0002 /* a new entry to be extracted */ 66 #define KEEP 0x0004 /* entry is not to change */ 67 #define REMOVED 0x0010 /* entry has been removed */ 68 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 69 #define EXISTED 0x0040 /* directory already existed during extract */ 70 /* 71 * functions defined on entry structs 72 */ 73 extern struct entry *lookupino(); 74 extern struct entry *lookupname(); 75 extern struct entry *lookupparent(); 76 extern struct entry *addentry(); 77 extern char *myname(); 78 extern char *savename(); 79 extern char *gentempname(); 80 extern char *flagvalues(); 81 extern ino_t lowerbnd(); 82 extern ino_t upperbnd(); 83 #define NIL ((struct entry *)(0)) 84 /* 85 * Constants associated with entry structs 86 */ 87 #define HARDLINK 1 88 #define SYMLINK 2 89 #define TMPHDR "RSTTMP" 90 91 /* 92 * The entry describes the next file available on the tape 93 */ 94 struct context { 95 char *name; /* name of file */ 96 ino_t ino; /* inumber of file */ 97 struct dinode *dip; /* pointer to inode */ 98 char action; /* action being taken on this file */ 99 } curfile; 100 /* actions */ 101 #define USING 1 /* extracting from the tape */ 102 #define SKIP 2 /* skipping */ 103 #define UNKNOWN 3 /* disposition or starting point is unknown */ 104 105 /* 106 * Definitions for library routines operating on directories. 107 */ 108 typedef struct rstdirdesc RST_DIR; 109 extern RST_DIR *rst_opendir(); 110 extern struct direct *rst_readdir(); 111 112 /* 113 * Other exported routines 114 */ 115 extern ino_t psearch(); 116 extern ino_t dirlookup(); 117 extern long listfile(); 118 extern long deletefile(); 119 extern long addfile(); 120 extern long nodeupdates(); 121 extern long verifyfile(); 122 extern char *rindex(); 123 extern char *index(); 124 extern char *strcat(); 125 extern char *strncat(); 126 extern char *strcpy(); 127 extern char *strncpy(); 128 extern char *fgets(); 129 extern char *mktemp(); 130 extern char *malloc(); 131 extern char *calloc(); 132 extern char *realloc(); 133 extern long lseek(); 134 135 /* 136 * Flags to setdirmodes. 137 */ 138 #define FORCE 0x0001 139 140 /* 141 * Useful macros 142 */ 143 #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY]) 144 #define MBIT(i) (1<<((unsigned)(i-1)%NBBY)) 145 #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) 146 #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) 147 #define BIT(i,w) (MWORD(w,i) & MBIT(i)) 148 149 #define dprintf if (dflag) fprintf 150 #define vprintf if (vflag) fprintf 151 152 #define GOOD 1 153 #define FAIL 0 154