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
36 static char sccsid[] = "@(#)itime.c 8.1 (Berkeley) 6/5/93";
38 static const char rcsid[] =
42 #include <sys/param.h>
45 #include <sys/vnode.h>
47 #include <ufs/fsdir.h>
48 #include <ufs/inode.h>
51 #include <ufs/ufs/dinode.h>
54 #include <protocols/dumprestore.h>
66 struct dumpdates **ddatev = 0;
69 struct dumptime *dthead = 0;
71 static void dumprecout __P((FILE *, struct dumpdates *));
72 static int getrecord __P((FILE *, struct dumpdates *));
73 static int makedumpdate __P((struct dumpdates *, char *));
74 static void readdumptimes __P((FILE *));
81 if ((df = fopen(dumpdates, "r")) == NULL) {
82 if (errno != ENOENT) {
83 quit("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 quit("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 (void) flock(fileno(df), LOCK_SH);
113 register struct dumptime *dtwalk;
116 dtwalk = (struct dumptime *)calloc(1, sizeof (struct dumptime));
117 if (getrecord(df, &(dtwalk->dt_value)) < 0)
120 dtwalk->dt_next = dthead;
126 * arrayify the list, leaving enough room for the additional
127 * record that we may have to add to the ddate structure
129 ddatev = (struct dumpdates **)
130 calloc((unsigned) (nddates + 1), sizeof (struct dumpdates *));
132 for (i = nddates - 1; i >= 0; i--, dtwalk = dtwalk->dt_next)
133 ddatev[i] = &dtwalk->dt_value;
139 register struct dumpdates *ddp;
145 msg("Looking for name %s in dumpdates = %s for level = %c\n",
146 fname, dumpdates, level);
153 * Go find the entry with the same name for a lower increment
157 if (strncmp(fname, ddp->dd_name, sizeof (ddp->dd_name)) != 0)
159 if (ddp->dd_level >= level)
161 if (ddp->dd_ddate <= spcl.c_ddate)
163 spcl.c_ddate = ddp->dd_ddate;
164 lastlevel = ddp->dd_level;
172 register struct dumpdates *dtwalk;
179 if ((df = fopen(dumpdates, "r+")) == NULL)
180 quit("cannot rewrite %s: %s\n", dumpdates, strerror(errno));
182 (void) flock(fd, LOCK_EX);
184 free((char *)ddatev);
190 if (fseek(df, 0L, 0) < 0)
191 quit("fseek: %s\n", strerror(errno));
193 ITITERATE(i, dtwalk) {
194 if (strncmp(fname, dtwalk->dd_name,
195 sizeof (dtwalk->dd_name)) != 0)
197 if (dtwalk->dd_level != level)
202 * construct the new upper bound;
203 * Enough room has been allocated.
205 dtwalk = ddatev[nddates] =
206 (struct dumpdates *)calloc(1, sizeof (struct dumpdates));
209 (void) strncpy(dtwalk->dd_name, fname, sizeof (dtwalk->dd_name));
210 dtwalk->dd_level = level;
211 dtwalk->dd_ddate = spcl.c_date;
213 ITITERATE(i, dtwalk) {
214 dumprecout(df, dtwalk);
217 quit("%s: %s\n", dumpdates, strerror(errno));
218 if (ftruncate(fd, ftell(df)))
219 quit("ftruncate (%s): %s\n", dumpdates, strerror(errno));
221 msg("level %c dump on %s", level,
222 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
226 dumprecout(file, what)
228 struct dumpdates *what;
231 if (fprintf(file, DUMPOUTFMT,
234 ctime(&what->dd_ddate)) < 0)
235 quit("%s: %s\n", dumpdates, strerror(errno));
241 getrecord(df, ddatep)
243 struct dumpdates *ddatep;
248 if ( (fgets(tbuf, sizeof (tbuf), df)) != tbuf)
251 if (makedumpdate(ddatep, tbuf) < 0)
252 msg("Unknown intermediate format in %s, line %d\n",
256 msg("getrecord: %s %c %s", ddatep->dd_name, ddatep->dd_level,
257 ddatep->dd_ddate == 0 ? "the epoch\n" : ctime(&ddatep->dd_ddate));
263 makedumpdate(ddp, tbuf)
264 struct dumpdates *ddp;
269 (void) sscanf(tbuf, DUMPINFMT, ddp->dd_name, &ddp->dd_level, un_buf);
270 ddp->dd_ddate = unctime(un_buf);
271 if (ddp->dd_ddate < 0)