2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)itime.c 8.1 (Berkeley) 6/5/93
34 * $FreeBSD: src/sbin/dump/itime.c,v 1.3.2.1 2001/08/01 06:29:35 obrien Exp $
35 * $DragonFly: src/sbin/dump/itime.c,v 1.9 2005/04/13 16:07:15 joerg Exp $
38 #include <sys/param.h>
39 #include <sys/queue.h>
42 #include <sys/vnode.h>
44 #include <ufs/fsdir.h>
45 #include <ufs/inode.h>
48 #include <vfs/ufs/dinode.h>
51 #include <protocols/dumprestore.h>
64 struct dumpdates dt_value
;
65 SLIST_ENTRY(dumptime
) dt_list
;
67 SLIST_HEAD(dthead
, dumptime
) dthead
= SLIST_HEAD_INITIALIZER(dthead
);
68 struct dumpdates
**ddatev
= NULL
;
71 static void dumprecout(FILE *, struct dumpdates
*);
72 static int getrecord(FILE *, struct dumpdates
*);
73 static int makedumpdate(struct dumpdates
*, char *);
74 static void readdumptimes(FILE *);
81 if ((df
= fopen(dumpdates
, "r")) == NULL
) {
82 if (errno
!= ENOENT
) {
83 msg("WARNING: cannot read %s: %s\n", dumpdates
,
88 * Dumpdates does not exist, make an empty one.
90 msg("WARNING: no file `%s', making an empty one\n", dumpdates
);
91 if ((df
= fopen(dumpdates
, "w")) == NULL
) {
92 msg("WARNING: cannot create %s: %s\n", dumpdates
,
97 if ((df
= fopen(dumpdates
, "r")) == NULL
) {
98 quit("cannot read %s even after creating it: %s\n",
99 dumpdates
, strerror(errno
));
103 flock(fileno(df
), LOCK_SH
);
109 readdumptimes(FILE *df
)
112 struct dumptime
*dtwalk
;
115 dtwalk
= (struct dumptime
*)calloc(1, sizeof (struct dumptime
));
116 if (getrecord(df
, &(dtwalk
->dt_value
)) < 0)
119 SLIST_INSERT_HEAD(&dthead
, dtwalk
, dt_list
);
123 * arrayify the list, leaving enough room for the additional
124 * record that we may have to add to the ddate structure
126 ddatev
= (struct dumpdates
**)
127 calloc((unsigned) (nddates
+ 1), sizeof (struct dumpdates
*));
128 dtwalk
= SLIST_FIRST(&dthead
);
129 for (i
= nddates
- 1; i
>= 0; i
--, dtwalk
= SLIST_NEXT(dtwalk
, dt_list
))
130 ddatev
[i
] = &dtwalk
->dt_value
;
136 struct dumpdates
*ddp
;
142 msg("Looking for name %s in dumpdates = %s for level = %c\n",
143 fname
, dumpdates
, level
);
150 * Go find the entry with the same name for a lower increment
154 if (strncmp(fname
, ddp
->dd_name
, sizeof (ddp
->dd_name
)) != 0)
156 if (ddp
->dd_level
>= level
)
158 if (ddp
->dd_ddate
<= spcl
.c_ddate
)
160 spcl
.c_ddate
= ddp
->dd_ddate
;
161 lastlevel
= ddp
->dd_level
;
169 struct dumpdates
*dtwalk
;
176 if ((df
= fopen(dumpdates
, "r+")) == NULL
)
177 quit("cannot rewrite %s: %s\n", dumpdates
, strerror(errno
));
181 free((char *)ddatev
);
185 if (fseek(df
, 0L, 0) < 0)
186 quit("fseek: %s\n", strerror(errno
));
188 ITITERATE(i
, dtwalk
) {
189 if (strncmp(fname
, dtwalk
->dd_name
,
190 sizeof (dtwalk
->dd_name
)) != 0)
192 if (dtwalk
->dd_level
!= level
)
197 * construct the new upper bound;
198 * Enough room has been allocated.
200 dtwalk
= ddatev
[nddates
] =
201 (struct dumpdates
*)calloc(1, sizeof (struct dumpdates
));
204 strncpy(dtwalk
->dd_name
, fname
, sizeof (dtwalk
->dd_name
));
205 dtwalk
->dd_level
= level
;
206 dtwalk
->dd_ddate
= spcl
.c_date
;
208 ITITERATE(i
, dtwalk
) {
209 dumprecout(df
, dtwalk
);
212 quit("%s: %s\n", dumpdates
, strerror(errno
));
213 if (ftruncate(fd
, ftell(df
)))
214 quit("ftruncate (%s): %s\n", dumpdates
, strerror(errno
));
216 msg("level %c dump on %s", level
,
217 spcl
.c_date
== 0 ? "the epoch\n" : ctime(&spcl
.c_date
));
221 dumprecout(FILE *file
, struct dumpdates
*what
)
224 if (fprintf(file
, DUMPOUTFMT
,
227 ctime(&what
->dd_ddate
)) < 0)
228 quit("%s: %s\n", dumpdates
, strerror(errno
));
234 getrecord(FILE *df
, struct dumpdates
*ddatep
)
239 if ( (fgets(tbuf
, sizeof (tbuf
), df
)) != tbuf
)
242 if (makedumpdate(ddatep
, tbuf
) < 0)
243 msg("Unknown intermediate format in %s, line %d\n",
247 msg("getrecord: %s %c %s", ddatep
->dd_name
, ddatep
->dd_level
,
248 ddatep
->dd_ddate
== 0 ? "the epoch\n" : ctime(&ddatep
->dd_ddate
));
254 makedumpdate(struct dumpdates
*ddp
, char *tbuf
)
258 sscanf(tbuf
, DUMPINFMT
, ddp
->dd_name
, &ddp
->dd_level
, un_buf
);
259 ddp
->dd_ddate
= unctime(un_buf
);
260 if (ddp
->dd_ddate
< 0)