projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 17a18c5e WJ |
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 |