1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/* $OpenBSD: ex_preserve.c,v 1.4 2002/02/16 21:27:57 millert Exp $ */
/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)ex_preserve.c 10.12 (Berkeley) 4/27/96";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include "../common/common.h"
/*
* ex_preserve -- :pre[serve]
* Push the file to recovery.
*
* PUBLIC: int ex_preserve(SCR *, EXCMD *);
*/
int
ex_preserve(sp, cmdp)
SCR *sp;
EXCMD *cmdp;
{
recno_t lno;
NEEDFILE(sp, cmdp);
if (!F_ISSET(sp->ep, F_RCV_ON)) {
msgq(sp, M_ERR, "142|Preservation of this file not possible");
return (1);
}
/* If recovery not initialized, do so. */
if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp))
return (1);
/* Force the file to be read in, in case it hasn't yet. */
if (db_last(sp, &lno))
return (1);
/* Sync to disk. */
if (rcv_sync(sp, RCV_SNAPSHOT))
return (1);
msgq(sp, M_INFO, "143|File preserved");
return (0);
}
/*
* ex_recover -- :rec[over][!] file
* Recover the file.
*
* PUBLIC: int ex_recover(SCR *, EXCMD *);
*/
int
ex_recover(sp, cmdp)
SCR *sp;
EXCMD *cmdp;
{
ARGS *ap;
FREF *frp;
ap = cmdp->argv[0];
/* Set the alternate file name. */
set_alt_name(sp, ap->bp);
/*
* Check for modifications. Autowrite did not historically
* affect :recover.
*/
if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE)))
return (1);
/* Get a file structure for the file. */
if ((frp = file_add(sp, ap->bp)) == NULL)
return (1);
/* Set the recover bit. */
F_SET(frp, FR_RECOVER);
/* Switch files. */
if (file_init(sp, frp, NULL, FS_SETALT |
(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
return (1);
F_SET(sp, SC_FSWITCH);
return (0);
}
|
