2 * Copyright (c) 1980, 1988, 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 * @(#)optr.c 8.2 (Berkeley) 1/6/94
34 * $FreeBSD: src/sbin/dump/optr.c,v 1.9.2.5 2002/02/23 22:32:51 iedowse Exp $
35 * $DragonFly: src/sbin/dump/optr.c,v 1.9 2005/04/13 15:45:37 joerg Exp $
38 #include <sys/param.h>
39 #include <sys/queue.h>
55 #include "pathnames.h"
57 static void alarmcatch(int);
58 static int datesort(const void *, const void *);
61 * Query the operator; This previously-fascist piece of code
62 * no longer requires an exact response.
63 * It is intended to protect dump aborting by inquisitive
64 * people banging on the console terminal to see what is
65 * happening which might cause dump to croak, destroying
66 * a large number of hours of work.
68 * Every 2 minutes we reprint the message, alerting others
69 * that dump needs attention.
72 static const char *attnmessage; /* attention message */
75 query(const char *question)
81 if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
82 quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
83 attnmessage = question;
89 if (fgets(replybuffer, 63, mytty) == NULL) {
91 if (++errcount > 30) /* XXX ugly */
92 quit("excessive operator query failures\n");
93 } else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
95 } else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
98 fprintf(stderr, " DUMP: \"Yes\" or \"No\"?\n");
99 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
105 * Turn off the alarm, and reset the signal to trap out..
108 if (signal(SIGALRM, sig) == SIG_IGN)
109 signal(SIGALRM, SIG_IGN);
114 char lastmsg[BUFSIZ];
117 * Alert the console operator, and enable the alarm clock to
118 * sleep for 2 minutes in case nobody comes to satisfy dump
121 alarmcatch(int signo __unused)
125 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
132 broadcast(""); /* just print last msg */
134 fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ", attnmessage);
136 signal(SIGALRM, alarmcatch);
142 * Here if an inquisitive operator interrupts the dump program
145 interrupt(int signo __unused)
147 msg("Interrupt received.\n");
148 if (query("Do you want to abort dump?"))
153 * We now use wall(1) to do the actual broadcasting.
156 broadcast(const char *message)
159 char buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3];
164 snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT);
165 if ((fp = popen(buf, "w")) == NULL)
168 fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp);
178 * Print out an estimate of the amount of time left to do the dump
181 time_t tschedule = 0;
188 int deltat, hours, mins;
191 deltat = (blockswritten == 0) ? 0 : tstart_writing - tnow +
192 (double)(tnow - tstart_writing) / blockswritten * tapesize;
193 percent = (blockswritten * 100.0) / tapesize;
194 hours = deltat / 3600;
195 mins = (deltat % 3600) / 60;
197 setproctitle("%s: pass %d: %3.2f%% done, finished in %d:%02d",
198 disk, passno, percent, hours, mins);
199 if (tnow >= tschedule) {
200 tschedule = tnow + 300;
201 if (blockswritten < 500)
203 msg("%3.2f%% done, finished in %d:%02d\n", percent, hours,
209 * Schedule a printout of the estimate in the next call to timeest().
212 infosch(int signo __unused)
218 msg(const char *fmt, ...)
222 fprintf(stderr," DUMP: ");
224 fprintf(stderr, "pid=%d ", getpid());
227 vfprintf(stderr, fmt, ap);
230 vsnprintf(lastmsg, sizeof(lastmsg), fmt, ap);
235 msgtail(const char *fmt, ...)
240 vfprintf(stderr, fmt, ap);
245 quit(const char *fmt, ...)
249 fprintf(stderr," DUMP: ");
251 fprintf(stderr, "pid=%d ", getpid());
254 vfprintf(stderr, fmt, ap);
262 * Tell the operator what has to be done;
263 * we don't actually do it
266 static struct fstab *
267 allocfsent(struct fstab *fs)
271 new = (struct fstab *)malloc(sizeof (*fs));
273 (new->fs_file = strdup(fs->fs_file)) == NULL ||
274 (new->fs_type = strdup(fs->fs_type)) == NULL ||
275 (new->fs_spec = strdup(fs->fs_spec)) == NULL)
276 quit("%s\n", strerror(errno));
277 new->fs_passno = fs->fs_passno;
278 new->fs_freq = fs->fs_freq;
283 SLIST_ENTRY(pfstab) pf_list;
284 struct fstab *pf_fstab;
287 static SLIST_HEAD(, pfstab) table;
295 if (setfsent() == 0) {
296 msg("Can't open %s for dump table information: %s\n",
297 _PATH_FSTAB, strerror(errno));
300 while ((fs = getfsent()) != NULL) {
301 if (strcmp(fs->fs_type, FSTAB_RW) &&
302 strcmp(fs->fs_type, FSTAB_RO) &&
303 strcmp(fs->fs_type, FSTAB_RQ))
306 if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL)
307 quit("%s\n", strerror(errno));
309 SLIST_INSERT_HEAD(&table, pf, pf_list);
315 * Search in the fstab for a file name.
316 * This file name can be either the special or the path file name.
318 * The file name can omit the leading '/'.
321 fstabsearch(const char *key)
327 SLIST_FOREACH(pf, &table, pf_list) {
329 if (strcmp(fs->fs_file, key) == 0 ||
330 strcmp(fs->fs_spec, key) == 0)
332 rn = rawname(fs->fs_spec);
333 if (rn != NULL && strcmp(rn, key) == 0)
336 if (*fs->fs_spec == '/' &&
337 strcmp(fs->fs_spec + 1, key) == 0)
339 if (*fs->fs_file == '/' &&
340 strcmp(fs->fs_file + 1, key) == 0)
348 * Tell the operator what to do
350 * char arg: w ==> just what to do; W ==> most recent dumps
357 struct dumpdates *dtwalk;
358 const char *lastname;
365 getfstab(); /* /etc/fstab input */
366 initdumptimes(); /* /etc/dumpdates input */
367 qsort(ddatev, nddates, sizeof(struct dumpdates *), datesort);
370 printf("Dump these file systems:\n");
372 printf("Last dump(s) done (Dump '>' file systems):\n");
374 ITITERATE(i, dtwalk) {
375 if (strncmp(lastname, dtwalk->dd_name,
376 sizeof(dtwalk->dd_name)) == 0)
378 date = (char *)ctime(&dtwalk->dd_ddate);
379 date[16] = '\0'; /* blast away seconds and year */
380 lastname = dtwalk->dd_name;
381 dt = fstabsearch(dtwalk->dd_name);
382 dumpme = (dt != NULL && dt->fs_freq != 0);
384 tlast = localtime(&dtwalk->dd_ddate);
385 dumpme = tnow > (dtwalk->dd_ddate - (tlast->tm_hour * 3600)
386 - (tlast->tm_min * 60) - tlast->tm_sec
387 + (dt->fs_freq * 86400));
389 if (arg != 'w' || dumpme)
391 "%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
392 dumpme && (arg != 'w') ? '>' : ' ',
394 dt ? dt->fs_file : "",
401 datesort(const void *a1, const void *a2)
403 const struct dumpdates *d1 = *(const struct dumpdates * const *)a1;
404 const struct dumpdates *d2 = *(const struct dumpdates * const *)a2;
407 diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
409 return (d2->dd_ddate - d1->dd_ddate);