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29 * @(#)optr.c 8.2 (Berkeley) 1/6/94
30 * $FreeBSD: src/sbin/dump/optr.c,v 1.9.2.5 2002/02/23 22:32:51 iedowse Exp $
33 #include <sys/param.h>
34 #include <sys/queue.h>
49 #include <vfs/ufs/dinode.h>
52 #include "pathnames.h"
54 static void alarmcatch(int);
55 static int datesort(const void *, const void *);
58 * Query the operator; This previously-fascist piece of code
59 * no longer requires an exact response.
60 * It is intended to protect dump aborting by inquisitive
61 * people banging on the console terminal to see what is
62 * happening which might cause dump to croak, destroying
63 * a large number of hours of work.
65 * Every 2 minutes we reprint the message, alerting others
66 * that dump needs attention.
69 static const char *attnmessage; /* attention message */
72 query(const char *question)
78 if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
79 quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
80 attnmessage = question;
86 if (fgets(replybuffer, 63, mytty) == NULL) {
88 if (++errcount > 30) /* XXX ugly */
89 quit("excessive operator query failures\n");
90 } else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
92 } else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
95 fprintf(stderr, " DUMP: \"Yes\" or \"No\"?\n");
96 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
102 * Turn off the alarm, and reset the signal to trap out..
105 if (signal(SIGALRM, sig) == SIG_IGN)
106 signal(SIGALRM, SIG_IGN);
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 signo __unused)
122 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
129 broadcast(""); /* just print last msg */
131 fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ", attnmessage);
133 signal(SIGALRM, alarmcatch);
139 * Here if an inquisitive operator interrupts the dump program
142 interrupt(int signo __unused)
144 msg("Interrupt received.\n");
145 if (query("Do you want to abort dump?"))
150 * We now use wall(1) to do the actual broadcasting.
153 broadcast(const char *message)
156 char buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3];
161 snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT);
162 if ((fp = popen(buf, "w")) == NULL)
165 fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp);
175 * Print out an estimate of the amount of time left to do the dump
178 time_t tschedule = 0;
185 int deltat, hours, mins;
188 deltat = (blockswritten == 0) ? 0 : tstart_writing - tnow +
189 (double)(tnow - tstart_writing) / blockswritten * tapesize;
190 percent = (blockswritten * 100.0) / tapesize;
191 hours = deltat / 3600;
192 mins = (deltat % 3600) / 60;
194 setproctitle("%s: pass %d: %3.2f%% done, finished in %d:%02d",
195 disk, passno, percent, hours, mins);
196 if (tnow >= tschedule) {
197 tschedule = tnow + 300;
198 if (blockswritten < 500)
200 msg("%3.2f%% done, finished in %d:%02d\n", percent, hours,
206 * Schedule a printout of the estimate in the next call to timeest().
209 infosch(int signo __unused)
215 msg(const char *fmt, ...)
219 fprintf(stderr," DUMP: ");
221 fprintf(stderr, "pid=%d ", getpid());
224 vfprintf(stderr, fmt, ap);
229 vsnprintf(lastmsg, sizeof(lastmsg), fmt, ap);
234 msgtail(const char *fmt, ...)
239 vfprintf(stderr, fmt, ap);
244 quit(const char *fmt, ...)
248 fprintf(stderr," DUMP: ");
250 fprintf(stderr, "pid=%d ", getpid());
253 vfprintf(stderr, fmt, ap);
261 * Tell the operator what has to be done;
262 * we don't actually do it
265 static struct fstab *
266 allocfsent(struct fstab *fs)
270 new = (struct fstab *)malloc(sizeof (*fs));
272 (new->fs_file = strdup(fs->fs_file)) == NULL ||
273 (new->fs_type = strdup(fs->fs_type)) == NULL ||
274 (new->fs_spec = strdup(fs->fs_spec)) == NULL)
275 quit("%s\n", strerror(errno));
276 new->fs_passno = fs->fs_passno;
277 new->fs_freq = fs->fs_freq;
282 SLIST_ENTRY(pfstab) pf_list;
283 struct fstab *pf_fstab;
286 static SLIST_HEAD(, pfstab) table;
294 if (setfsent() == 0) {
295 msg("Can't open %s for dump table information: %s\n",
296 _PATH_FSTAB, strerror(errno));
299 while ((fs = getfsent()) != NULL) {
300 if (strcmp(fs->fs_type, FSTAB_RW) &&
301 strcmp(fs->fs_type, FSTAB_RO) &&
302 strcmp(fs->fs_type, FSTAB_RQ))
305 if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL)
306 quit("%s\n", strerror(errno));
308 SLIST_INSERT_HEAD(&table, pf, pf_list);
314 * Search in the fstab for a file name.
315 * This file name can be either the special or the path file name.
317 * The file name can omit the leading '/'.
320 fstabsearch(const char *key)
326 SLIST_FOREACH(pf, &table, pf_list) {
328 if (strcmp(fs->fs_file, key) == 0 ||
329 strcmp(fs->fs_spec, key) == 0)
331 rn = rawname(fs->fs_spec);
332 if (rn != NULL && strcmp(rn, key) == 0)
335 if (*fs->fs_spec == '/' &&
336 strcmp(fs->fs_spec + 1, key) == 0)
338 if (*fs->fs_file == '/' &&
339 strcmp(fs->fs_file + 1, key) == 0)
347 * Tell the operator what to do
349 * char arg: w ==> just what to do; W ==> most recent dumps
356 struct dumpdates *dtwalk;
357 const char *lastname;
364 dump_getfstab(); /* /etc/fstab input */
365 initdumptimes(); /* /etc/dumpdates input */
366 qsort(ddatev, nddates, sizeof(struct dumpdates *), datesort);
369 printf("Dump these file systems:\n");
371 printf("Last dump(s) done (Dump '>' file systems):\n");
373 ITITERATE(i, dtwalk) {
374 if (strncmp(lastname, dtwalk->dd_name,
375 sizeof(dtwalk->dd_name)) == 0)
377 date = (char *)ctime(&dtwalk->dd_ddate);
378 date[16] = '\0'; /* blast away seconds and year */
379 lastname = dtwalk->dd_name;
380 dt = fstabsearch(dtwalk->dd_name);
381 dumpme = (dt != NULL && dt->fs_freq != 0);
383 tlast = localtime(&dtwalk->dd_ddate);
384 dumpme = tnow > (dtwalk->dd_ddate - (tlast->tm_hour * 3600)
385 - (tlast->tm_min * 60) - tlast->tm_sec
386 + (dt->fs_freq * 86400));
388 if (arg != 'w' || dumpme)
390 "%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
391 dumpme && (arg != 'w') ? '>' : ' ',
393 dt ? dt->fs_file : "",
400 datesort(const void *a1, const void *a2)
402 const struct dumpdates *d1 = *(const struct dumpdates * const *)a1;
403 const struct dumpdates *d2 = *(const struct dumpdates * const *)a2;
406 diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
408 return (d2->dd_ddate - d1->dd_ddate);