optr.c revision 102231
11558Srgrimes/*- 21558Srgrimes * Copyright (c) 1980, 1988, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 341558Srgrimes#ifndef lint 3536997Scharnier#if 0 361558Srgrimesstatic char sccsid[] = "@(#)optr.c 8.2 (Berkeley) 1/6/94"; 3736997Scharnier#endif 3836997Scharnierstatic const char rcsid[] = 3950476Speter "$FreeBSD: head/sbin/dump/optr.c 102231 2002-08-21 18:11:48Z trhodes $"; 401558Srgrimes#endif /* not lint */ 411558Srgrimes 421558Srgrimes#include <sys/param.h> 4371787Sphk#include <sys/queue.h> 441558Srgrimes#include <sys/wait.h> 451558Srgrimes#include <sys/time.h> 461558Srgrimes 4798542Smckusick#include <ufs/ufs/dinode.h> 4898542Smckusick 491558Srgrimes#include <errno.h> 501558Srgrimes#include <fstab.h> 511558Srgrimes#include <grp.h> 521558Srgrimes#include <stdio.h> 531558Srgrimes#include <stdlib.h> 541558Srgrimes#include <string.h> 551558Srgrimes#include <stdarg.h> 5690742Siedowse#include <signal.h> 571558Srgrimes#include <unistd.h> 581558Srgrimes 591558Srgrimes#include "dump.h" 601558Srgrimes#include "pathnames.h" 611558Srgrimes 6292837Simpvoid alarmcatch(int); 6392837Simpint datesort(const void *, const void *); 641558Srgrimes 651558Srgrimes/* 661558Srgrimes * Query the operator; This previously-fascist piece of code 671558Srgrimes * no longer requires an exact response. 681558Srgrimes * It is intended to protect dump aborting by inquisitive 691558Srgrimes * people banging on the console terminal to see what is 701558Srgrimes * happening which might cause dump to croak, destroying 711558Srgrimes * a large number of hours of work. 721558Srgrimes * 731558Srgrimes * Every 2 minutes we reprint the message, alerting others 741558Srgrimes * that dump needs attention. 751558Srgrimes */ 761558Srgrimesstatic int timeout; 7792837Simpstatic const char *attnmessage; /* attention message */ 781558Srgrimes 791558Srgrimesint 8092837Simpquery(const char *question) 811558Srgrimes{ 821558Srgrimes char replybuffer[64]; 831558Srgrimes int back, errcount; 841558Srgrimes FILE *mytty; 851558Srgrimes 861558Srgrimes if ((mytty = fopen(_PATH_TTY, "r")) == NULL) 871558Srgrimes quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno)); 881558Srgrimes attnmessage = question; 891558Srgrimes timeout = 0; 9092837Simp alarmcatch(0); 911558Srgrimes back = -1; 921558Srgrimes errcount = 0; 931558Srgrimes do { 941558Srgrimes if (fgets(replybuffer, 63, mytty) == NULL) { 951558Srgrimes clearerr(mytty); 961558Srgrimes if (++errcount > 30) /* XXX ugly */ 971558Srgrimes quit("excessive operator query failures\n"); 981558Srgrimes } else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') { 991558Srgrimes back = 1; 1001558Srgrimes } else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') { 1011558Srgrimes back = 0; 1021558Srgrimes } else { 1031558Srgrimes (void) fprintf(stderr, 1041558Srgrimes " DUMP: \"Yes\" or \"No\"?\n"); 1051558Srgrimes (void) fprintf(stderr, 1061558Srgrimes " DUMP: %s: (\"yes\" or \"no\") ", question); 1071558Srgrimes } 1081558Srgrimes } while (back < 0); 1091558Srgrimes 1101558Srgrimes /* 1111558Srgrimes * Turn off the alarm, and reset the signal to trap out.. 1121558Srgrimes */ 1131558Srgrimes (void) alarm(0); 1141558Srgrimes if (signal(SIGALRM, sig) == SIG_IGN) 1151558Srgrimes signal(SIGALRM, SIG_IGN); 1161558Srgrimes (void) fclose(mytty); 1171558Srgrimes return(back); 1181558Srgrimes} 1191558Srgrimes 12083083Sruchar lastmsg[BUFSIZ]; 1211558Srgrimes 1221558Srgrimes/* 1231558Srgrimes * Alert the console operator, and enable the alarm clock to 1241558Srgrimes * sleep for 2 minutes in case nobody comes to satisfy dump 1251558Srgrimes */ 1261558Srgrimesvoid 12792837Simpalarmcatch(int sig __unused) 1281558Srgrimes{ 1291558Srgrimes if (notify == 0) { 1301558Srgrimes if (timeout == 0) 1311558Srgrimes (void) fprintf(stderr, 1321558Srgrimes " DUMP: %s: (\"yes\" or \"no\") ", 1331558Srgrimes attnmessage); 1341558Srgrimes else 13571750Sphk msgtail("\a\a"); 1361558Srgrimes } else { 1371558Srgrimes if (timeout) { 1381558Srgrimes msgtail("\n"); 1391558Srgrimes broadcast(""); /* just print last msg */ 1401558Srgrimes } 1411558Srgrimes (void) fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ", 1421558Srgrimes attnmessage); 1431558Srgrimes } 1441558Srgrimes signal(SIGALRM, alarmcatch); 1451558Srgrimes (void) alarm(120); 1461558Srgrimes timeout = 1; 1471558Srgrimes} 1481558Srgrimes 1491558Srgrimes/* 1501558Srgrimes * Here if an inquisitive operator interrupts the dump program 1511558Srgrimes */ 1521558Srgrimesvoid 15392837Simpinterrupt(int signo __unused) 1541558Srgrimes{ 1551558Srgrimes msg("Interrupt received.\n"); 1561558Srgrimes if (query("Do you want to abort dump?")) 1571558Srgrimes dumpabort(0); 1581558Srgrimes} 1591558Srgrimes 1601558Srgrimes/* 16183083Sru * We now use wall(1) to do the actual broadcasting. 1621558Srgrimes */ 1631558Srgrimesvoid 16492837Simpbroadcast(const char *message) 1651558Srgrimes{ 16683083Sru FILE *fp; 16783083Sru char buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3]; 1681558Srgrimes 16983083Sru if (!notify) 1701558Srgrimes return; 1711558Srgrimes 17283083Sru snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT); 17383083Sru if ((fp = popen(buf, "w")) == NULL) 1741558Srgrimes return; 1751558Srgrimes 17683083Sru (void) fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp); 17783083Sru if (lastmsg[0]) 17883083Sru (void) fputs(lastmsg, fp); 17983083Sru if (message[0]) 18083083Sru (void) fputs(message, fp); 1811558Srgrimes 18283083Sru (void) pclose(fp); 1831558Srgrimes} 1841558Srgrimes 1851558Srgrimes/* 18683083Sru * Print out an estimate of the amount of time left to do the dump 1871558Srgrimes */ 1881558Srgrimes 1891558Srgrimestime_t tschedule = 0; 1901558Srgrimes 1911558Srgrimesvoid 19292837Simptimeest(void) 1931558Srgrimes{ 19490743Siedowse double percent; 19585622Sdillon time_t tnow; 19690743Siedowse int deltat, hours, mins; 1971558Srgrimes 19890742Siedowse (void) time(&tnow); 19990743Siedowse deltat = (blockswritten == 0) ? 0 : tstart_writing - tnow + 20090743Siedowse (double)(tnow - tstart_writing) / blockswritten * tapesize; 20190743Siedowse percent = (blockswritten * 100.0) / tapesize; 20290743Siedowse hours = deltat / 3600; 20390743Siedowse mins = (deltat % 3600) / 60; 20490743Siedowse 20590743Siedowse setproctitle("%s: pass %d: %3.2f%% done, finished in %d:%02d", 20690743Siedowse disk, passno, percent, hours, mins); 2071558Srgrimes if (tnow >= tschedule) { 2081558Srgrimes tschedule = tnow + 300; 2091558Srgrimes if (blockswritten < 500) 2108871Srgrimes return; 21190743Siedowse msg("%3.2f%% done, finished in %d:%02d\n", percent, hours, 21290743Siedowse mins); 2131558Srgrimes } 2141558Srgrimes} 2151558Srgrimes 21690742Siedowse/* 21790742Siedowse * Schedule a printout of the estimate in the next call to timeest(). 21890742Siedowse */ 2191558Srgrimesvoid 22092837Simpinfosch(int signal __unused) 22190742Siedowse{ 22290742Siedowse tschedule = 0; 22390742Siedowse} 22490742Siedowse 22590742Siedowsevoid 2261558Srgrimesmsg(const char *fmt, ...) 2271558Srgrimes{ 2281558Srgrimes va_list ap; 2291558Srgrimes 2301558Srgrimes (void) fprintf(stderr," DUMP: "); 2311558Srgrimes#ifdef TDEBUG 2321558Srgrimes (void) fprintf(stderr, "pid=%d ", getpid()); 2331558Srgrimes#endif 2341558Srgrimes va_start(ap, fmt); 2351558Srgrimes (void) vfprintf(stderr, fmt, ap); 2361558Srgrimes (void) fflush(stdout); 2371558Srgrimes (void) fflush(stderr); 23853084Simp (void) vsnprintf(lastmsg, sizeof(lastmsg), fmt, ap); 2391558Srgrimes va_end(ap); 2401558Srgrimes} 2411558Srgrimes 2421558Srgrimesvoid 2431558Srgrimesmsgtail(const char *fmt, ...) 2441558Srgrimes{ 2451558Srgrimes va_list ap; 2461558Srgrimes va_start(ap, fmt); 2471558Srgrimes (void) vfprintf(stderr, fmt, ap); 2481558Srgrimes va_end(ap); 2491558Srgrimes} 2501558Srgrimes 2511558Srgrimesvoid 2521558Srgrimesquit(const char *fmt, ...) 2531558Srgrimes{ 2541558Srgrimes va_list ap; 2551558Srgrimes 2561558Srgrimes (void) fprintf(stderr," DUMP: "); 2571558Srgrimes#ifdef TDEBUG 2581558Srgrimes (void) fprintf(stderr, "pid=%d ", getpid()); 2591558Srgrimes#endif 2601558Srgrimes va_start(ap, fmt); 2611558Srgrimes (void) vfprintf(stderr, fmt, ap); 2621558Srgrimes va_end(ap); 2631558Srgrimes (void) fflush(stdout); 2641558Srgrimes (void) fflush(stderr); 2651558Srgrimes dumpabort(0); 2661558Srgrimes} 2671558Srgrimes 2681558Srgrimes/* 2691558Srgrimes * Tell the operator what has to be done; 2701558Srgrimes * we don't actually do it 2711558Srgrimes */ 2721558Srgrimes 2731558Srgrimesstruct fstab * 27492837Simpallocfsent(const struct fstab *fs) 2751558Srgrimes{ 27686473Siedowse struct fstab *new; 2771558Srgrimes 2781558Srgrimes new = (struct fstab *)malloc(sizeof (*fs)); 2791558Srgrimes if (new == NULL || 2801558Srgrimes (new->fs_file = strdup(fs->fs_file)) == NULL || 2811558Srgrimes (new->fs_type = strdup(fs->fs_type)) == NULL || 2821558Srgrimes (new->fs_spec = strdup(fs->fs_spec)) == NULL) 2831558Srgrimes quit("%s\n", strerror(errno)); 2841558Srgrimes new->fs_passno = fs->fs_passno; 2851558Srgrimes new->fs_freq = fs->fs_freq; 2861558Srgrimes return (new); 2871558Srgrimes} 2881558Srgrimes 2891558Srgrimesstruct pfstab { 29071787Sphk SLIST_ENTRY(pfstab) pf_list; 2911558Srgrimes struct fstab *pf_fstab; 2921558Srgrimes}; 2931558Srgrimes 29471787Sphkstatic SLIST_HEAD(, pfstab) table; 2951558Srgrimes 2961558Srgrimesvoid 29792837Simpgetfstab(void) 2981558Srgrimes{ 29986473Siedowse struct fstab *fs; 30086473Siedowse struct pfstab *pf; 3011558Srgrimes 3021558Srgrimes if (setfsent() == 0) { 3031558Srgrimes msg("Can't open %s for dump table information: %s\n", 3041558Srgrimes _PATH_FSTAB, strerror(errno)); 3051558Srgrimes return; 3061558Srgrimes } 3071558Srgrimes while ((fs = getfsent()) != NULL) { 3081558Srgrimes if (strcmp(fs->fs_type, FSTAB_RW) && 3091558Srgrimes strcmp(fs->fs_type, FSTAB_RO) && 3101558Srgrimes strcmp(fs->fs_type, FSTAB_RQ)) 3111558Srgrimes continue; 3121558Srgrimes fs = allocfsent(fs); 3131558Srgrimes if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL) 3141558Srgrimes quit("%s\n", strerror(errno)); 3151558Srgrimes pf->pf_fstab = fs; 31671787Sphk SLIST_INSERT_HEAD(&table, pf, pf_list); 3171558Srgrimes } 3181558Srgrimes (void) endfsent(); 3191558Srgrimes} 3201558Srgrimes 3211558Srgrimes/* 3221558Srgrimes * Search in the fstab for a file name. 3231558Srgrimes * This file name can be either the special or the path file name. 3241558Srgrimes * 3251558Srgrimes * The file name can omit the leading '/'. 3261558Srgrimes */ 3271558Srgrimesstruct fstab * 32892837Simpfstabsearch(const char *key) 3291558Srgrimes{ 33086473Siedowse struct pfstab *pf; 33186473Siedowse struct fstab *fs; 3321558Srgrimes char *rn; 3331558Srgrimes 33471787Sphk SLIST_FOREACH(pf, &table, pf_list) { 3351558Srgrimes fs = pf->pf_fstab; 3361558Srgrimes if (strcmp(fs->fs_file, key) == 0 || 3371558Srgrimes strcmp(fs->fs_spec, key) == 0) 3381558Srgrimes return (fs); 3391558Srgrimes rn = rawname(fs->fs_spec); 3401558Srgrimes if (rn != NULL && strcmp(rn, key) == 0) 3411558Srgrimes return (fs); 3421558Srgrimes if (key[0] != '/') { 3431558Srgrimes if (*fs->fs_spec == '/' && 3441558Srgrimes strcmp(fs->fs_spec + 1, key) == 0) 3451558Srgrimes return (fs); 3461558Srgrimes if (*fs->fs_file == '/' && 3471558Srgrimes strcmp(fs->fs_file + 1, key) == 0) 3481558Srgrimes return (fs); 3491558Srgrimes } 3501558Srgrimes } 3511558Srgrimes return (NULL); 3521558Srgrimes} 3531558Srgrimes 3541558Srgrimes/* 3551558Srgrimes * Tell the operator what to do 3561558Srgrimes */ 3571558Srgrimesvoid 35892837Simplastdump(int arg) /* w ==> just what to do; W ==> most recent dumps */ 3591558Srgrimes{ 36086473Siedowse int i; 36186473Siedowse struct fstab *dt; 36286473Siedowse struct dumpdates *dtwalk; 3631558Srgrimes char *lastname, *date; 3641558Srgrimes int dumpme; 36548447Sjkh time_t tnow; 36648447Sjkh struct tm *tlast; 3671558Srgrimes 3681558Srgrimes (void) time(&tnow); 3691558Srgrimes getfstab(); /* /etc/fstab input */ 3701558Srgrimes initdumptimes(); /* /etc/dumpdates input */ 3711558Srgrimes qsort((char *) ddatev, nddates, sizeof(struct dumpdates *), datesort); 3721558Srgrimes 3731558Srgrimes if (arg == 'w') 374102231Strhodes (void) printf("Dump these file systems:\n"); 3751558Srgrimes else 376102231Strhodes (void) printf("Last dump(s) done (Dump '>' file systems):\n"); 3771558Srgrimes lastname = "??"; 3781558Srgrimes ITITERATE(i, dtwalk) { 3791558Srgrimes if (strncmp(lastname, dtwalk->dd_name, 3801558Srgrimes sizeof(dtwalk->dd_name)) == 0) 3811558Srgrimes continue; 38248447Sjkh date = (char *)ctime(&dtwalk->dd_ddate); 3831558Srgrimes date[16] = '\0'; /* blast away seconds and year */ 3841558Srgrimes lastname = dtwalk->dd_name; 3851558Srgrimes dt = fstabsearch(dtwalk->dd_name); 38648447Sjkh dumpme = (dt != NULL && dt->fs_freq != 0); 38748447Sjkh if (dumpme) { 38848447Sjkh tlast = localtime(&dtwalk->dd_ddate); 38948447Sjkh dumpme = tnow > (dtwalk->dd_ddate - (tlast->tm_hour * 3600) 39048447Sjkh - (tlast->tm_min * 60) - tlast->tm_sec 39148447Sjkh + (dt->fs_freq * 86400)); 39248447Sjkh }; 3931558Srgrimes if (arg != 'w' || dumpme) 3941558Srgrimes (void) printf( 3951558Srgrimes "%c %8s\t(%6s) Last dump: Level %c, Date %s\n", 3961558Srgrimes dumpme && (arg != 'w') ? '>' : ' ', 3971558Srgrimes dtwalk->dd_name, 3981558Srgrimes dt ? dt->fs_file : "", 3991558Srgrimes dtwalk->dd_level, 4001558Srgrimes date); 4011558Srgrimes } 4021558Srgrimes} 4031558Srgrimes 4041558Srgrimesint 40592837Simpdatesort(const void *a1, const void *a2) 4061558Srgrimes{ 4071558Srgrimes struct dumpdates *d1 = *(struct dumpdates **)a1; 4081558Srgrimes struct dumpdates *d2 = *(struct dumpdates **)a2; 4091558Srgrimes int diff; 4101558Srgrimes 4111558Srgrimes diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name)); 4121558Srgrimes if (diff == 0) 4131558Srgrimes return (d2->dd_ddate - d1->dd_ddate); 4141558Srgrimes return (diff); 4151558Srgrimes} 416