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1.1 root 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 are permitted
6: * provided that: (1) source distributions retain this entire copyright
7: * notice and comment, and (2) distributions including binaries display
8: * the following acknowledgement: ``This product includes software
9: * developed by the University of California, Berkeley and its contributors''
10: * in the documentation or other materials provided with the distribution
11: * and in all advertising materials mentioning features or use of this
12: * software. Neither the name of the University nor the names of its
13: * contributors may be used to endorse or promote products derived
14: * from this software without specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: *
19: * @(#)restore.h 5.8 (Berkeley) 6/1/90
20: */
21:
22: #include <stdio.h>
23: #include <sys/param.h>
24: #include <sys/time.h>
25: #include <ufs/dinode.h>
26: #include <ufs/fs.h>
27:
28: /*
29: * Flags
30: */
31: extern int cvtflag; /* convert from old to new tape format */
32: extern int bflag; /* set input block size */
33: extern int dflag; /* print out debugging info */
34: extern int hflag; /* restore heirarchies */
35: extern int mflag; /* restore by name instead of inode number */
36: extern int Nflag; /* do not write the disk */
37: extern int vflag; /* print out actions taken */
38: extern int yflag; /* always try to recover from tape errors */
39: /*
40: * Global variables
41: */
42: extern char *dumpmap; /* map of inodes on this dump tape */
43: extern char *clrimap; /* map of inodes to be deleted */
44: extern ino_t maxino; /* highest numbered inode in this file system */
45: extern long dumpnum; /* location of the dump on this tape */
46: extern long volno; /* current volume being read */
47: extern long ntrec; /* number of TP_BSIZE records per tape block */
48: extern time_t dumptime; /* time that this dump begins */
49: extern time_t dumpdate; /* time that this dump was made */
50: extern char command; /* opration being performed */
51: extern FILE *terminal; /* file descriptor for the terminal input */
52:
53: /*
54: * Each file in the file system is described by one of these entries
55: */
56: struct entry {
57: char *e_name; /* the current name of this entry */
58: u_char e_namlen; /* length of this name */
59: char e_type; /* type of this entry, see below */
60: short e_flags; /* status flags, see below */
61: ino_t e_ino; /* inode number in previous file sys */
62: long e_index; /* unique index (for dumpped table) */
63: struct entry *e_parent; /* pointer to parent directory (..) */
64: struct entry *e_sibling; /* next element in this directory (.) */
65: struct entry *e_links; /* hard links to this inode */
66: struct entry *e_entries; /* for directories, their entries */
67: struct entry *e_next; /* hash chain list */
68: };
69: /* types */
70: #define LEAF 1 /* non-directory entry */
71: #define NODE 2 /* directory entry */
72: #define LINK 4 /* synthesized type, stripped by addentry */
73: /* flags */
74: #define EXTRACT 0x0001 /* entry is to be replaced from the tape */
75: #define NEW 0x0002 /* a new entry to be extracted */
76: #define KEEP 0x0004 /* entry is not to change */
77: #define REMOVED 0x0010 /* entry has been removed */
78: #define TMPNAME 0x0020 /* entry has been given a temporary name */
79: #define EXISTED 0x0040 /* directory already existed during extract */
80: /*
81: * functions defined on entry structs
82: */
83: extern struct entry *lookupino();
84: extern struct entry *lookupname();
85: extern struct entry *lookupparent();
86: extern struct entry *addentry();
87: extern char *myname();
88: extern char *savename();
89: extern char *gentempname();
90: extern char *flagvalues();
91: extern ino_t lowerbnd();
92: extern ino_t upperbnd();
93: #define NIL ((struct entry *)(0))
94: /*
95: * Constants associated with entry structs
96: */
97: #define HARDLINK 1
98: #define SYMLINK 2
99: #define TMPHDR "RSTTMP"
100:
101: /*
102: * The entry describes the next file available on the tape
103: */
104: struct context {
105: char *name; /* name of file */
106: ino_t ino; /* inumber of file */
107: struct dinode *dip; /* pointer to inode */
108: char action; /* action being taken on this file */
109: } curfile;
110: /* actions */
111: #define USING 1 /* extracting from the tape */
112: #define SKIP 2 /* skipping */
113: #define UNKNOWN 3 /* disposition or starting point is unknown */
114:
115: /*
116: * Definitions for library routines operating on directories.
117: */
118: typedef struct dirdesc DIR;
119: extern DIR *rst_opendir();
120: extern struct direct *rst_readdir();
121:
122: /*
123: * Other exported routines
124: */
125: extern ino_t psearch();
126: extern ino_t dirlookup();
127: extern long listfile();
128: extern long deletefile();
129: extern long addfile();
130: extern long nodeupdates();
131: extern long verifyfile();
132: extern char *rindex();
133: extern char *index();
134: extern char *strcat();
135: extern char *strncat();
136: extern char *strcpy();
137: extern char *strncpy();
138: extern char *fgets();
139: extern char *mktemp();
140: extern char *malloc();
141: extern char *calloc();
142: extern char *realloc();
143: extern long lseek();
144:
145: /*
146: * Useful macros
147: */
148: #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY])
149: #define MBIT(i) (1<<((unsigned)(i-1)%NBBY))
150: #define BIS(i,w) (MWORD(w,i) |= MBIT(i))
151: #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i))
152: #define BIT(i,w) (MWORD(w,i) & MBIT(i))
153:
154: #define dprintf if (dflag) fprintf
155: #define vprintf if (vflag) fprintf
156:
157: #define GOOD 1
158: #define FAIL 0
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