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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 1.10 2005/08/28 04:35:12 dillon Exp $
38 #include <sys/param.h>
39 #include <sys/queue.h>
54 #include <vfs/ufs/dinode.h>
57 #include "pathnames.h"
59 static void alarmcatch(int);
60 static int datesort(const void *, const void *);
63 * Query the operator; This previously-fascist piece of code
64 * no longer requires an exact response.
65 * It is intended to protect dump aborting by inquisitive
66 * people banging on the console terminal to see what is
67 * happening which might cause dump to croak, destroying
68 * a large number of hours of work.
70 * Every 2 minutes we reprint the message, alerting others
71 * that dump needs attention.
74 static const char *attnmessage; /* attention message */
77 query(const char *question)
83 if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
84 quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
85 attnmessage = question;
91 if (fgets(replybuffer, 63, mytty) == NULL) {
93 if (++errcount > 30) /* XXX ugly */
94 quit("excessive operator query failures\n");
95 } else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
97 } else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
100 fprintf(stderr, " DUMP: \"Yes\" or \"No\"?\n");
101 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
107 * Turn off the alarm, and reset the signal to trap out..
110 if (signal(SIGALRM, sig) == SIG_IGN)
111 signal(SIGALRM, SIG_IGN);
116 char lastmsg[BUFSIZ];
119 * Alert the console operator, and enable the alarm clock to
120 * sleep for 2 minutes in case nobody comes to satisfy dump
123 alarmcatch(int signo __unused)
127 fprintf(stderr, " DUMP: %s: (\"yes\" or \"no\") ",
134 broadcast(""); /* just print last msg */
136 fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ", attnmessage);
138 signal(SIGALRM, alarmcatch);
144 * Here if an inquisitive operator interrupts the dump program
147 interrupt(int signo __unused)
149 msg("Interrupt received.\n");
150 if (query("Do you want to abort dump?"))
155 * We now use wall(1) to do the actual broadcasting.
158 broadcast(const char *message)
161 char buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3];
166 snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT);
167 if ((fp = popen(buf, "w")) == NULL)
170 fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp);
180 * Print out an estimate of the amount of time left to do the dump
183 time_t tschedule = 0;
190 int deltat, hours, mins;
193 deltat = (blockswritten == 0) ? 0 : tstart_writing - tnow +
194 (double)(tnow - tstart_writing) / blockswritten * tapesize;
195 percent = (blockswritten * 100.0) / tapesize;
196 hours = deltat / 3600;
197 mins = (deltat % 3600) / 60;
199 setproctitle("%s: pass %d: %3.2f%% done, finished in %d:%02d",
200 disk, passno, percent, hours, mins);
201 if (tnow >= tschedule) {
202 tschedule = tnow + 300;
203 if (blockswritten < 500)
205 msg("%3.2f%% done, finished in %d:%02d\n", percent, hours,
211 * Schedule a printout of the estimate in the next call to timeest().
214 infosch(int signo __unused)
220 msg(const char *fmt, ...)
224 fprintf(stderr," DUMP: ");
226 fprintf(stderr, "pid=%d ", getpid());
229 vfprintf(stderr, fmt, ap);
232 vsnprintf(lastmsg, sizeof(lastmsg), fmt, ap);
237 msgtail(const char *fmt, ...)
242 vfprintf(stderr, fmt, ap);
247 quit(const char *fmt, ...)
251 fprintf(stderr," DUMP: ");
253 fprintf(stderr, "pid=%d ", getpid());
256 vfprintf(stderr, fmt, ap);
264 * Tell the operator what has to be done;
265 * we don't actually do it
268 static struct fstab *
269 allocfsent(struct fstab *fs)
273 new = (struct fstab *)malloc(sizeof (*fs));
275 (new->fs_file = strdup(fs->fs_file)) == NULL ||
276 (new->fs_type = strdup(fs->fs_type)) == NULL ||
277 (new->fs_spec = strdup(fs->fs_spec)) == NULL)
278 quit("%s\n", strerror(errno));
279 new->fs_passno = fs->fs_passno;
280 new->fs_freq = fs->fs_freq;
285 SLIST_ENTRY(pfstab) pf_list;
286 struct fstab *pf_fstab;
289 static SLIST_HEAD(, pfstab) table;
297 if (setfsent() == 0) {
298 msg("Can't open %s for dump table information: %s\n",
299 _PATH_FSTAB, strerror(errno));
302 while ((fs = getfsent()) != NULL) {
303 if (strcmp(fs->fs_type, FSTAB_RW) &&
304 strcmp(fs->fs_type, FSTAB_RO) &&
305 strcmp(fs->fs_type, FSTAB_RQ))
308 if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL)
309 quit("%s\n", strerror(errno));
311 SLIST_INSERT_HEAD(&table, pf, pf_list);
317 * Search in the fstab for a file name.
318 * This file name can be either the special or the path file name.
320 * The file name can omit the leading '/'.
323 fstabsearch(const char *key)
329 SLIST_FOREACH(pf, &table, pf_list) {
331 if (strcmp(fs->fs_file, key) == 0 ||
332 strcmp(fs->fs_spec, key) == 0)
334 rn = rawname(fs->fs_spec);
335 if (rn != NULL && strcmp(rn, key) == 0)
338 if (*fs->fs_spec == '/' &&
339 strcmp(fs->fs_spec + 1, key) == 0)
341 if (*fs->fs_file == '/' &&
342 strcmp(fs->fs_file + 1, key) == 0)
350 * Tell the operator what to do
352 * char arg: w ==> just what to do; W ==> most recent dumps
359 struct dumpdates *dtwalk;
360 const char *lastname;
367 getfstab(); /* /etc/fstab input */
368 initdumptimes(); /* /etc/dumpdates input */
369 qsort(ddatev, nddates, sizeof(struct dumpdates *), datesort);
372 printf("Dump these file systems:\n");
374 printf("Last dump(s) done (Dump '>' file systems):\n");
376 ITITERATE(i, dtwalk) {
377 if (strncmp(lastname, dtwalk->dd_name,
378 sizeof(dtwalk->dd_name)) == 0)
380 date = (char *)ctime(&dtwalk->dd_ddate);
381 date[16] = '\0'; /* blast away seconds and year */
382 lastname = dtwalk->dd_name;
383 dt = fstabsearch(dtwalk->dd_name);
384 dumpme = (dt != NULL && dt->fs_freq != 0);
386 tlast = localtime(&dtwalk->dd_ddate);
387 dumpme = tnow > (dtwalk->dd_ddate - (tlast->tm_hour * 3600)
388 - (tlast->tm_min * 60) - tlast->tm_sec
389 + (dt->fs_freq * 86400));
391 if (arg != 'w' || dumpme)
393 "%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
394 dumpme && (arg != 'w') ? '>' : ' ',
396 dt ? dt->fs_file : "",
403 datesort(const void *a1, const void *a2)
405 const struct dumpdates *d1 = *(const struct dumpdates * const *)a1;
406 const struct dumpdates *d2 = *(const struct dumpdates * const *)a2;
409 diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
411 return (d2->dd_ddate - d1->dd_ddate);