1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)restore.h 5.8 (Berkeley) 6/1/90 34 */ 35 36 #include <stdio.h> 37 #include <sys/param.h> 38 #include <sys/time.h> 39 #include <ufs/dinode.h> 40 #include <ufs/fs.h> 41 42 /* 43 * Flags 44 */ 45 extern int cvtflag; /* convert from old to new tape format */ 46 extern int bflag; /* set input block size */ 47 extern int dflag; /* print out debugging info */ 48 extern int hflag; /* restore heirarchies */ 49 extern int mflag; /* restore by name instead of inode number */ 50 extern int Nflag; /* do not write the disk */ 51 extern int vflag; /* print out actions taken */ 52 extern int yflag; /* always try to recover from tape errors */ 53 /* 54 * Global variables 55 */ 56 extern char *dumpmap; /* map of inodes on this dump tape */ 57 extern char *clrimap; /* map of inodes to be deleted */ 58 extern ino_t maxino; /* highest numbered inode in this file system */ 59 extern long dumpnum; /* location of the dump on this tape */ 60 extern long volno; /* current volume being read */ 61 extern long ntrec; /* number of TP_BSIZE records per tape block */ 62 extern time_t dumptime; /* time that this dump begins */ 63 extern time_t dumpdate; /* time that this dump was made */ 64 extern char command; /* opration being performed */ 65 extern FILE *terminal; /* file descriptor for the terminal input */ 66 67 /* 68 * Each file in the file system is described by one of these entries 69 */ 70 struct entry { 71 char *e_name; /* the current name of this entry */ 72 u_char e_namlen; /* length of this name */ 73 char e_type; /* type of this entry, see below */ 74 short e_flags; /* status flags, see below */ 75 ino_t e_ino; /* inode number in previous file sys */ 76 long e_index; /* unique index (for dumpped table) */ 77 struct entry *e_parent; /* pointer to parent directory (..) */ 78 struct entry *e_sibling; /* next element in this directory (.) */ 79 struct entry *e_links; /* hard links to this inode */ 80 struct entry *e_entries; /* for directories, their entries */ 81 struct entry *e_next; /* hash chain list */ 82 }; 83 /* types */ 84 #define LEAF 1 /* non-directory entry */ 85 #define NODE 2 /* directory entry */ 86 #define LINK 4 /* synthesized type, stripped by addentry */ 87 /* flags */ 88 #define EXTRACT 0x0001 /* entry is to be replaced from the tape */ 89 #define NEW 0x0002 /* a new entry to be extracted */ 90 #define KEEP 0x0004 /* entry is not to change */ 91 #define REMOVED 0x0010 /* entry has been removed */ 92 #define TMPNAME 0x0020 /* entry has been given a temporary name */ 93 #define EXISTED 0x0040 /* directory already existed during extract */ 94 /* 95 * functions defined on entry structs 96 */ 97 extern struct entry *lookupino(); 98 extern struct entry *lookupname(); 99 extern struct entry *lookupparent(); 100 extern struct entry *addentry(); 101 extern char *myname(); 102 extern char *savename(); 103 extern char *gentempname(); 104 extern char *flagvalues(); 105 extern ino_t lowerbnd(); 106 extern ino_t upperbnd(); 107 #define NIL ((struct entry *)(0)) 108 /* 109 * Constants associated with entry structs 110 */ 111 #define HARDLINK 1 112 #define SYMLINK 2 113 #define TMPHDR "RSTTMP" 114 115 /* 116 * The entry describes the next file available on the tape 117 */ 118 struct context { 119 char *name; /* name of file */ 120 ino_t ino; /* inumber of file */ 121 struct dinode *dip; /* pointer to inode */ 122 char action; /* action being taken on this file */ 123 } curfile; 124 /* actions */ 125 #define USING 1 /* extracting from the tape */ 126 #define SKIP 2 /* skipping */ 127 #define UNKNOWN 3 /* disposition or starting point is unknown */ 128 129 /* 130 * Definitions for library routines operating on directories. 131 */ 132 typedef struct dirdesc DIR; 133 extern DIR *rst_opendir(); 134 extern struct direct *rst_readdir(); 135 136 /* 137 * Other exported routines 138 */ 139 extern ino_t psearch(); 140 extern ino_t dirlookup(); 141 extern long listfile(); 142 extern long deletefile(); 143 extern long addfile(); 144 extern long nodeupdates(); 145 extern long verifyfile(); 146 extern char *rindex(); 147 extern char *index(); 148 extern char *strcat(); 149 extern char *strncat(); 150 extern char *strcpy(); 151 extern char *strncpy(); 152 extern char *fgets(); 153 extern char *mktemp(); 154 extern char *malloc(); 155 extern char *calloc(); 156 extern char *realloc(); 157 extern long lseek(); 158 159 /* 160 * Useful macros 161 */ 162 #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY]) 163 #define MBIT(i) (1<<((unsigned)(i-1)%NBBY)) 164 #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) 165 #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) 166 #define BIT(i,w) (MWORD(w,i) & MBIT(i)) 167 168 #define dprintf if (dflag) fprintf 169 #define vprintf if (vflag) fprintf 170 171 #define GOOD 1 172 #define FAIL 0 173