2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1980, 1988, 1993
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32 #include <sys/param.h>
33 #include <sys/queue.h>
36 #include <ufs/ufs/dinode.h>
51 #include "pathnames.h"
54 int datesort(const void *, const void *);
57 * Query the operator; This previously-fascist piece of code
58 * no longer requires an exact response.
59 * It is intended to protect dump aborting by inquisitive
60 * people banging on the console terminal to see what is
61 * happening which might cause dump to croak, destroying
62 * a large number of hours of work.
64 * Every 2 minutes we reprint the message, alerting others
65 * that dump needs attention.
68 static const char *attnmessage; /* attention message */
71 query(const char *question)
77 if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
78 quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
79 attnmessage = question;
85 if (fgets(replybuffer, 63, mytty) == NULL) {
87 if (++errcount > 30) /* XXX ugly */
88 quit("excessive operator query failures\n");
89 } else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
91 } else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
94 (void) fprintf(stderr,
95 " DUMP: \"Yes\" or \"No\"?\n");
96 (void) fprintf(stderr,
97 " DUMP: %s: (\"yes\" or \"no\") ", question);
102 * Turn off the alarm, and reset the signal to trap out..
105 if (signal(SIGALRM, sig) == SIG_IGN)
106 signal(SIGALRM, SIG_IGN);
107 (void) fclose(mytty);
111 char lastmsg[BUFSIZ];
114 * Alert the console operator, and enable the alarm clock to
115 * sleep for 2 minutes in case nobody comes to satisfy dump
118 alarmcatch(int sig __unused)
122 (void) fprintf(stderr,
123 " DUMP: %s: (\"yes\" or \"no\") ",
130 broadcast(""); /* just print last msg */
132 (void) fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ",
135 signal(SIGALRM, alarmcatch);
141 * Here if an inquisitive operator interrupts the dump program
144 interrupt(int signo __unused)
146 msg("Interrupt received.\n");
147 if (query("Do you want to abort dump?"))
152 * We now use wall(1) to do the actual broadcasting.
155 broadcast(const char *message)
158 char buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3];
163 snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT);
164 if ((fp = popen(buf, "w")) == NULL)
167 (void) fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp);
169 (void) fputs(lastmsg, fp);
171 (void) fputs(message, fp);
177 * Print out an estimate of the amount of time left to do the dump
180 time_t tschedule = 0;
188 int deltat, hours, mins;
191 if (blockswritten > tapesize) {
192 setproctitle("%s: 99.99%% done, finished soon", disk);
193 if (tnow >= tschedule) {
194 tschedule = tnow + 300;
195 msg("99.99%% done, finished soon\n");
198 deltat = (blockswritten == 0) ? 0 : tstart_writing - tnow +
199 (double)(tnow - tstart_writing) / blockswritten * tapesize;
200 tdone = tnow + deltat;
201 percent = (blockswritten * 100.0) / tapesize;
202 hours = deltat / 3600;
203 mins = (deltat % 3600) / 60;
205 tdone_str = ctime(&tdone);
206 tdone_str[strlen(tdone_str) - 1] = '\0';
208 "%s: pass %d: %3.2f%% done, finished in %d:%02d at %s",
209 disk, passno, percent, hours, mins, tdone_str);
210 if (tnow >= tschedule) {
211 tschedule = tnow + 300;
212 if (blockswritten < 500)
214 msg("%3.2f%% done, finished in %d:%02d at %s\n", percent,
215 hours, mins, tdone_str);
221 * Schedule a printout of the estimate in the next call to timeest().
224 infosch(int signal __unused)
230 msg(const char *fmt, ...)
234 (void) fprintf(stderr," DUMP: ");
236 (void) fprintf(stderr, "pid=%d ", getpid());
239 (void) vfprintf(stderr, fmt, ap);
241 (void) fflush(stdout);
242 (void) fflush(stderr);
244 (void) vsnprintf(lastmsg, sizeof(lastmsg), fmt, ap);
249 msgtail(const char *fmt, ...)
254 (void) vfprintf(stderr, fmt, ap);
259 quit(const char *fmt, ...)
263 (void) fprintf(stderr," DUMP: ");
265 (void) fprintf(stderr, "pid=%d ", getpid());
268 (void) vfprintf(stderr, fmt, ap);
270 (void) fflush(stdout);
271 (void) fflush(stderr);
276 * Tell the operator what has to be done;
277 * we don't actually do it
281 allocfsent(const struct fstab *fs)
285 new = (struct fstab *)malloc(sizeof (*fs));
287 (new->fs_file = strdup(fs->fs_file)) == NULL ||
288 (new->fs_type = strdup(fs->fs_type)) == NULL ||
289 (new->fs_spec = strdup(fs->fs_spec)) == NULL)
290 quit("%s\n", strerror(errno));
291 new->fs_passno = fs->fs_passno;
292 new->fs_freq = fs->fs_freq;
297 SLIST_ENTRY(pfstab) pf_list;
298 struct fstab *pf_fstab;
301 static SLIST_HEAD(, pfstab) table;
309 if (setfsent() == 0) {
310 msg("Can't open %s for dump table information: %s\n",
311 _PATH_FSTAB, strerror(errno));
314 while ((fs = getfsent()) != NULL) {
315 if ((strcmp(fs->fs_type, FSTAB_RW) &&
316 strcmp(fs->fs_type, FSTAB_RO) &&
317 strcmp(fs->fs_type, FSTAB_RQ)) ||
318 strcmp(fs->fs_vfstype, "ufs"))
321 if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL)
322 quit("%s\n", strerror(errno));
324 SLIST_INSERT_HEAD(&table, pf, pf_list);
330 * Search in the fstab for a file name.
331 * This file name can be either the special or the path file name.
333 * The file name can omit the leading '/'.
336 fstabsearch(const char *key)
342 SLIST_FOREACH(pf, &table, pf_list) {
344 if (strcmp(fs->fs_file, key) == 0 ||
345 strcmp(fs->fs_spec, key) == 0)
347 rn = rawname(fs->fs_spec);
348 if (rn != NULL && strcmp(rn, key) == 0)
351 if (*fs->fs_spec == '/' &&
352 strcmp(fs->fs_spec + 1, key) == 0)
354 if (*fs->fs_file == '/' &&
355 strcmp(fs->fs_file + 1, key) == 0)
363 * Tell the operator what to do
366 lastdump(int arg) /* w ==> just what to do; W ==> most recent dumps */
370 struct dumpdates *dtwalk;
371 char *lastname, *date;
377 dump_getfstab(); /* /etc/fstab input */
378 initdumptimes(); /* /etc/dumpdates input */
379 qsort((char *) ddatev, nddates, sizeof(struct dumpdates *), datesort);
382 (void) printf("Dump these file systems:\n");
384 (void) printf("Last dump(s) done (Dump '>' file systems):\n");
386 ITITERATE(i, dtwalk) {
387 if (strncmp(lastname, dtwalk->dd_name,
388 sizeof(dtwalk->dd_name)) == 0)
390 date = (char *)ctime(&dtwalk->dd_ddate);
391 date[16] = '\0'; /* blast away seconds and year */
392 lastname = dtwalk->dd_name;
393 dt = fstabsearch(dtwalk->dd_name);
394 dumpme = (dt != NULL && dt->fs_freq != 0);
396 tlast = localtime(&dtwalk->dd_ddate);
397 dumpme = tnow > (dtwalk->dd_ddate - (tlast->tm_hour * 3600)
398 - (tlast->tm_min * 60) - tlast->tm_sec
399 + (dt->fs_freq * 86400));
401 if (arg != 'w' || dumpme)
403 "%c %8s\t(%6s) Last dump: Level %d, Date %s\n",
404 dumpme && (arg != 'w') ? '>' : ' ',
406 dt ? dt->fs_file : "",
413 datesort(const void *a1, const void *a2)
415 struct dumpdates *d1 = *(struct dumpdates **)a1;
416 struct dumpdates *d2 = *(struct dumpdates **)a2;
419 diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
421 return (d2->dd_ddate - d1->dd_ddate);