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Dump EOM detection is now a default.
[dump.git] / dump / main.c
1 /*
2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@cybercable.fr>, 1999-2000
6 */
7
8 /*-
9 * Copyright (c) 1980, 1991, 1993, 1994
10 * The Regents of the University of California. All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 #ifndef lint
42 static const char rcsid[] =
43 "$Id: main.c,v 1.27 2000/11/10 13:22:10 stelian Exp $";
44 #endif /* not lint */
45
46 #include <sys/param.h>
47 #include <sys/time.h>
48 #ifdef __linux__
49 #include <linux/ext2_fs.h>
50 #include <sys/stat.h>
51 #include <bsdcompat.h>
52 #else
53 #ifdef sunos
54 #include <sys/vnode.h>
55
56 #include <ufs/inode.h>
57 #include <ufs/fs.h>
58 #else
59 #include <ufs/ufs/dinode.h>
60 #include <ufs/ffs/fs.h>
61 #endif
62 #endif
63
64 #include <protocols/dumprestore.h>
65
66 #include <ctype.h>
67 #include <compaterr.h>
68 #include <fcntl.h>
69 #include <fstab.h>
70 #include <signal.h>
71 #include <stdio.h>
72 #include <stdlib.h>
73 #include <string.h>
74 #include <unistd.h>
75
76 #ifdef __linux__
77 #include <ext2fs/ext2fs.h>
78 #endif
79
80 #include "dump.h"
81 #include "pathnames.h"
82 #include "bylabel.h"
83
84 #ifndef SBOFF
85 #define SBOFF (SBLOCK * DEV_BSIZE)
86 #endif
87
88 int notify = 0; /* notify operator flag */
89 int blockswritten = 0; /* number of blocks written on current tape */
90 int tapeno = 0; /* current tape number */
91 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
92 int ntrec = NTREC; /* # tape blocks in each tape record */
93 int cartridge = 0; /* Assume non-cartridge tape */
94 int dokerberos = 0; /* Use Kerberos authentication */
95 long dev_bsize = 1; /* recalculated below */
96 long blocksperfile; /* output blocks per file */
97 char *host = NULL; /* remote host (if any) */
98 int sizest = 0; /* return size estimate only */
99
100 #ifdef __linux__
101 char *__progname;
102 #endif
103
104 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
105 static long numarg __P((const char *, long, long));
106 static void obsolete __P((int *, char **[]));
107 static void usage __P((void));
108
109 ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
110 int iexclude_num = 0; /* number of elements in the list */
111
112 int
113 main(int argc, char *argv[])
114 {
115 register ino_t ino;
116 register int dirty;
117 register struct dinode *dp;
118 register struct fstab *dt;
119 register char *map;
120 register int ch;
121 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
122 ino_t maxino;
123 #ifdef __linux__
124 errcode_t retval;
125 char directory[MAXPATHLEN];
126 char pathname[MAXPATHLEN];
127 #endif
128 time_t tnow;
129 char labelstr[LBLSIZE];
130 char *diskparam;
131
132 spcl.c_date = 0;
133 #ifdef __linux__
134 (void)time4(&spcl.c_date);
135 #else
136 (void)time((time_t *)&spcl.c_date);
137 #endif
138
139 #ifdef __linux__
140 __progname = argv[0];
141 directory[0] = 0;
142 initialize_ext2_error_table();
143 #endif
144
145 tsize = 0; /* Default later, based on 'c' option for cart tapes */
146 unlimited = 1;
147 eot_script = NULL;
148 if ((tapeprefix = getenv("TAPE")) == NULL)
149 tapeprefix = _PATH_DEFTAPE;
150 dumpdates = _PATH_DUMPDATES;
151 strcpy(labelstr, "none"); /* XXX safe strcpy. */
152 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
153 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
154 level = '0';
155
156 if (argc < 2)
157 usage();
158
159 obsolete(&argc, &argv);
160 #ifdef KERBEROS
161 #define optstring "0123456789aB:b:cd:e:f:F:h:kL:Mns:ST:uWw"
162 #else
163 #define optstring "0123456789aB:b:cd:e:f:F:h:L:Mns:ST:uWw"
164 #endif
165 while ((ch = getopt(argc, argv, optstring)) != -1)
166 #undef optstring
167 switch (ch) {
168 /* dump level */
169 case '0': case '1': case '2': case '3': case '4':
170 case '5': case '6': case '7': case '8': case '9':
171 level = ch;
172 break;
173
174 case 'a': /* `auto-size', Write to EOM. */
175 unlimited = 1;
176 break;
177
178 case 'B': /* blocks per output file */
179 unlimited = 0;
180 blocksperfile = numarg("number of blocks per file",
181 1L, 0L);
182 break;
183
184 case 'b': /* blocks per tape write */
185 ntrec = numarg("number of blocks per write",
186 1L, 1000L);
187 if (ntrec > maxbsize/1024) {
188 msg("Please choose a blocksize <= %dKB\n",
189 maxbsize/1024);
190 exit(X_STARTUP);
191 }
192 bflag = 1;
193 break;
194
195 case 'c': /* Tape is cart. not 9-track */
196 unlimited = 0;
197 cartridge = 1;
198 break;
199
200 case 'd': /* density, in bits per inch */
201 unlimited = 0;
202 density = numarg("density", 10L, 327670L) / 10;
203 if (density >= 625 && !bflag)
204 ntrec = HIGHDENSITYTREC;
205 break;
206
207 /* 04-Feb-00 ILC */
208 case 'e': /* exclude an inode */
209 if (iexclude_num == IEXCLUDE_MAXNUM) {
210 (void)fprintf(stderr, "Too many -e options\n");
211 exit(X_STARTUP);
212 }
213 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
214 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
215 (void)fprintf(stderr, "Cannot exclude inode %ld\n", iexclude_list[iexclude_num-1]);
216 exit(X_STARTUP);
217 }
218 msg("Added %d to exclude list\n",
219 iexclude_list[iexclude_num-1]);
220 break;
221
222 case 'f': /* output file */
223 tapeprefix = optarg;
224 break;
225
226 case 'F': /* end of tape script */
227 eot_script = optarg;
228 break;
229
230 case 'h':
231 honorlevel = numarg("honor level", 0L, 10L);
232 break;
233
234 #ifdef KERBEROS
235 case 'k':
236 dokerberos = 1;
237 break;
238 #endif
239
240 case 'L':
241 /*
242 * Note that although there are LBLSIZE characters,
243 * the last must be '\0', so the limit on strlen()
244 * is really LBLSIZE-1.
245 */
246 strncpy(labelstr, optarg, LBLSIZE);
247 labelstr[LBLSIZE-1] = '\0';
248 if (strlen(optarg) > LBLSIZE-1) {
249 msg(
250 "WARNING Label `%s' is larger than limit of %d characters.\n",
251 optarg, LBLSIZE-1);
252 msg("WARNING: Using truncated label `%s'.\n",
253 labelstr);
254 }
255 break;
256
257 case 'M': /* multi-volume flag */
258 Mflag = 1;
259 break;
260
261 case 'n': /* notify operators */
262 notify = 1;
263 break;
264
265 case 's': /* tape size, feet */
266 unlimited = 0;
267 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
268 break;
269
270 case 'S':
271 sizest = 1; /* return size estimate only */
272 break;
273
274 case 'T': /* time of last dump */
275 spcl.c_ddate = unctime(optarg);
276 if (spcl.c_ddate < 0) {
277 (void)fprintf(stderr, "bad time \"%s\"\n",
278 optarg);
279 exit(X_STARTUP);
280 }
281 Tflag = 1;
282 lastlevel = '?';
283 break;
284
285 case 'u': /* update dumpdates */
286 uflag = 1;
287 break;
288
289 case 'W': /* what to do */
290 case 'w':
291 lastdump(ch);
292 exit(X_FINOK); /* do nothing else */
293
294 default:
295 usage();
296 }
297 argc -= optind;
298 argv += optind;
299
300 if (argc < 1) {
301 (void)fprintf(stderr, "Must specify disk or filesystem\n");
302 exit(X_STARTUP);
303 }
304 diskparam = *argv++;
305 if (strlen(diskparam) >= MAXPATHLEN) {
306 (void)fprintf(stderr, "Disk or filesystem name too long: %s\n", diskparam);
307 exit(X_STARTUP);
308 }
309 argc--;
310 if (argc >= 1) {
311 (void)fprintf(stderr, "Unknown arguments to dump:");
312 while (argc--)
313 (void)fprintf(stderr, " %s", *argv++);
314 (void)fprintf(stderr, "\n");
315 exit(X_STARTUP);
316 }
317 if (Tflag && uflag) {
318 (void)fprintf(stderr,
319 "You cannot use the T and u flags together.\n");
320 exit(X_STARTUP);
321 }
322 if (strcmp(tapeprefix, "-") == 0) {
323 pipeout++;
324 tapeprefix = "standard output";
325 }
326
327 if (blocksperfile)
328 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
329 else if (!unlimited) {
330 /*
331 * Determine how to default tape size and density
332 *
333 * density tape size
334 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
335 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
336 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
337 * (450*4 - slop)
338 * hilit19 hits again: "
339 */
340 if (density == 0)
341 density = cartridge ? 100 : 160;
342 if (tsize == 0)
343 tsize = cartridge ? 1700L*120L : 2300L*120L;
344 }
345
346 if (strchr(tapeprefix, ':')) {
347 host = tapeprefix;
348 tapeprefix = strchr(host, ':');
349 *tapeprefix++ = '\0';
350 #ifdef RDUMP
351 if (index(tapeprefix, '\n')) {
352 (void)fprintf(stderr, "invalid characters in tape\n");
353 exit(X_STARTUP);
354 }
355 if (rmthost(host) == 0)
356 exit(X_STARTUP);
357 #else
358 (void)fprintf(stderr, "remote dump not enabled\n");
359 exit(X_STARTUP);
360 #endif
361 }
362 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
363
364 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
365 signal(SIGHUP, sig);
366 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
367 signal(SIGTRAP, sig);
368 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
369 signal(SIGFPE, sig);
370 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
371 signal(SIGBUS, sig);
372 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
373 signal(SIGSEGV, sig);
374 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
375 signal(SIGTERM, sig);
376 if (signal(SIGINT, interrupt) == SIG_IGN)
377 signal(SIGINT, SIG_IGN);
378 set_operators(); /* /etc/group snarfed */
379 getfstab(); /* /etc/fstab snarfed */
380
381 disk = get_device_name(diskparam);
382 if (!disk) { /* null means the disk is some form
383 of LABEL= or UID= but it was not
384 found */
385 msg("Cannot find a disk having %s\n", diskparam);
386 exit(X_STARTUP);
387 }
388 /*
389 * disk may end in / and this can confuse
390 * fstabsearch.
391 */
392 if (strlen(disk) > 1 && disk[strlen(disk) - 1] == '/')
393 disk[strlen(disk) - 1] = '\0';
394 /*
395 * disk can be either the full special file name,
396 * the suffix of the special file name,
397 * the special name missing the leading '/',
398 * the file system name with or without the leading '/'.
399 */
400 if ((dt = fstabsearch(disk)) != NULL) {
401 disk = rawname(dt->fs_spec);
402 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
403 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
404 #ifdef __linux__
405 } else {
406 #ifdef HAVE_REALPATH
407 if (realpath(disk, pathname) == NULL)
408 #endif
409 strcpy(pathname, disk);
410 /*
411 * The argument could be now a mountpoint of
412 * a filesystem specified in fstab. Search for it.
413 */
414 if ((dt = fstabsearch(pathname)) != NULL) {
415 disk = rawname(dt->fs_spec);
416 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
417 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
418 } else {
419 /*
420 * The argument was not found in the fstab
421 * assume that this is a subtree and search for it
422 */
423 dt = fstabsearchdir(pathname, directory);
424 if (dt != NULL) {
425 char name[MAXPATHLEN];
426 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
427 (void)snprintf(name, sizeof(name), "%s (dir %s)",
428 dt->fs_file, directory);
429 (void)strncpy(spcl.c_filesys, name, NAMELEN);
430 disk = rawname(dt->fs_spec);
431 } else {
432 (void)strncpy(spcl.c_dev, disk, NAMELEN);
433 (void)strncpy(spcl.c_filesys, "an unlisted file system",
434 NAMELEN);
435 }
436 }
437 }
438 #else
439 } else {
440 (void)strncpy(spcl.c_dev, disk, NAMELEN);
441 (void)strncpy(spcl.c_filesys, "an unlisted file system",
442 NAMELEN);
443 }
444 #endif
445
446 if (directory[0] != 0) {
447 if (level != '0') {
448 (void)fprintf(stderr, "Only level 0 dumps are allowed on a subdirectory\n");
449 exit(X_STARTUP);
450 }
451 if (uflag) {
452 (void)fprintf(stderr, "You can't update the dumpdates file when dumping a subdirectory\n");
453 exit(X_STARTUP);
454 }
455 }
456 spcl.c_dev[NAMELEN-1]='\0';
457 spcl.c_filesys[NAMELEN-1]='\0';
458 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1);
459 (void)gethostname(spcl.c_host, NAMELEN);
460 spcl.c_level = level - '0';
461 spcl.c_type = TS_TAPE;
462 if (!Tflag)
463 getdumptime(uflag); /* dumpdates snarfed */
464
465 if (spcl.c_ddate == 0 && spcl.c_level) {
466 msg("WARNING: There is no inferior level dump on this filesystem\n");
467 msg("WARNING: Assuming a level 0 dump by default\n");
468 level = '0';
469 spcl.c_level = 0;
470 }
471
472 if (Mflag)
473 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
474 else
475 strncpy(tape, tapeprefix, MAXPATHLEN);
476 tape[MAXPATHLEN - 1] = '\0';
477
478 if (!sizest) {
479
480 msg("Date of this level %c dump: %s", level,
481 #ifdef __linux__
482 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
483 #else
484 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
485 #endif
486 msg("Date of last level %c dump: %s", lastlevel,
487 #ifdef __linux__
488 spcl.c_ddate == 0 ? "the epoch\n" : ctime4(&spcl.c_ddate));
489 #else
490 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
491 #endif
492 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
493 if (host)
494 msgtail("to %s on host %s\n", tape, host);
495 else
496 msgtail("to %s\n", tape);
497 msg("Label: %s\n", labelstr);
498
499 } /* end of size estimate */
500
501 #ifdef __linux__
502 retval = dump_fs_open(disk, &fs);
503 if (retval) {
504 com_err(disk, retval, "while opening filesystem");
505 if (retval == EXT2_ET_REV_TOO_HIGH)
506 printf ("Get a newer version of dump!\n");
507 exit(X_STARTUP);
508 }
509 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
510 com_err(disk, retval, "while opening filesystem");
511 printf ("Get a newer version of dump!\n");
512 exit(X_STARTUP);
513 }
514 if ((diskfd = open(disk, O_RDONLY)) < 0) {
515 msg("Cannot open %s\n", disk);
516 exit(X_STARTUP);
517 }
518 sync();
519 dev_bsize = DEV_BSIZE;
520 dev_bshift = ffs(dev_bsize) - 1;
521 if (dev_bsize != (1 << dev_bshift))
522 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
523 tp_bshift = ffs(TP_BSIZE) - 1;
524 if (TP_BSIZE != (1 << tp_bshift))
525 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
526 maxino = fs->super->s_inodes_count;
527 #if 0
528 spcl.c_flags |= DR_NEWINODEFMT;
529 #endif
530 #else /* __linux __*/
531 if ((diskfd = open(disk, O_RDONLY)) < 0) {
532 msg("Cannot open %s\n", disk);
533 exit(X_STARTUP);
534 }
535 sync();
536 sblock = (struct fs *)sblock_buf;
537 bread(SBOFF, (char *) sblock, SBSIZE);
538 if (sblock->fs_magic != FS_MAGIC)
539 quit("bad sblock magic number\n");
540 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
541 dev_bshift = ffs(dev_bsize) - 1;
542 if (dev_bsize != (1 << dev_bshift))
543 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
544 tp_bshift = ffs(TP_BSIZE) - 1;
545 if (TP_BSIZE != (1 << tp_bshift))
546 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
547 #ifdef FS_44INODEFMT
548 if (sblock->fs_inodefmt >= FS_44INODEFMT)
549 spcl.c_flags |= DR_NEWINODEFMT;
550 #endif
551 maxino = sblock->fs_ipg * sblock->fs_ncg;
552 #endif /* __linux__ */
553 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
554 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
555 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
556 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
557 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
558
559 nonodump = spcl.c_level < honorlevel;
560
561 #if defined(SIGINFO)
562 (void)signal(SIGINFO, statussig);
563 #endif
564
565 if (!sizest)
566 msg("mapping (Pass I) [regular files]\n");
567 #ifdef __linux__
568 if (directory[0] == 0)
569 anydirskipped = mapfiles(maxino, &tapesize);
570 else
571 anydirskipped = mapfilesfromdir(maxino, &tapesize, directory);
572 #else
573 anydirskipped = mapfiles(maxino, &tapesize);
574 #endif
575
576 if (!sizest)
577 msg("mapping (Pass II) [directories]\n");
578 while (anydirskipped) {
579 anydirskipped = mapdirs(maxino, &tapesize);
580 }
581
582 if (sizest) {
583 printf("%.0f\n", ((double)tapesize + 11) * TP_BSIZE);
584 exit(X_FINOK);
585 } /* stop here for size estimate */
586
587 if (pipeout || unlimited) {
588 tapesize += 11; /* 10 trailer blocks + 1 map header */
589 msg("estimated %ld tape blocks.\n", tapesize);
590 } else {
591 double fetapes;
592
593 if (blocksperfile)
594 fetapes = (double) tapesize / blocksperfile;
595 else if (cartridge) {
596 /* Estimate number of tapes, assuming streaming stops at
597 the end of each block written, and not in mid-block.
598 Assume no erroneous blocks; this can be compensated
599 for with an artificially low tape size. */
600 fetapes =
601 ( (double) tapesize /* blocks */
602 * TP_BSIZE /* bytes/block */
603 * (1.0/density) /* 0.1" / byte " */
604 +
605 (double) tapesize /* blocks */
606 * (1.0/ntrec) /* streaming-stops per block */
607 * 15.48 /* 0.1" / streaming-stop " */
608 ) * (1.0 / tsize ); /* tape / 0.1" " */
609 } else {
610 /* Estimate number of tapes, for old fashioned 9-track
611 tape */
612 int tenthsperirg = (density == 625) ? 3 : 7;
613 fetapes =
614 ( (double) tapesize /* blocks */
615 * TP_BSIZE /* bytes / block */
616 * (1.0/density) /* 0.1" / byte " */
617 +
618 (double) tapesize /* blocks */
619 * (1.0/ntrec) /* IRG's / block */
620 * tenthsperirg /* 0.1" / IRG " */
621 ) * (1.0 / tsize ); /* tape / 0.1" " */
622 }
623 etapes = fetapes; /* truncating assignment */
624 etapes++;
625 /* count the dumped inodes map on each additional tape */
626 tapesize += (etapes - 1) *
627 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
628 tapesize += etapes + 10; /* headers + 10 trailer blks */
629 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
630 tapesize, fetapes);
631 }
632
633 /*
634 * Allocate tape buffer.
635 */
636 if (!alloctape())
637 quit(
638 "can't allocate tape buffers - try a smaller blocking factor.\n");
639
640 startnewtape(1);
641 #ifdef __linux__
642 (void)time4(&(tstart_writing));
643 #else
644 (void)time((time_t *)&(tstart_writing));
645 #endif
646 dumpmap(usedinomap, TS_CLRI, maxino - 1);
647
648 msg("dumping (Pass III) [directories]\n");
649 dirty = 0; /* XXX just to get gcc to shut up */
650 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
651 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
652 dirty = *map++;
653 else
654 dirty >>= 1;
655 if ((dirty & 1) == 0)
656 continue;
657 /*
658 * Skip directory inodes deleted and maybe reallocated
659 */
660 dp = getino(ino);
661 if ((dp->di_mode & IFMT) != IFDIR)
662 continue;
663 #ifdef __linux__
664 /*
665 * Skip directory inodes deleted and not yes reallocated...
666 */
667 if (dp->di_nlink == 0 || dp->di_dtime != 0)
668 continue;
669 (void)dumpdirino(dp, ino);
670 #else
671 (void)dumpino(dp, ino);
672 #endif
673 }
674
675 msg("dumping (Pass IV) [regular files]\n");
676 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
677 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
678 dirty = *map++;
679 else
680 dirty >>= 1;
681 if ((dirty & 1) == 0)
682 continue;
683 /*
684 * Skip inodes deleted and reallocated as directories.
685 */
686 dp = getino(ino);
687 if ((dp->di_mode & IFMT) == IFDIR)
688 continue;
689 #ifdef __linux__
690 /*
691 * No need to check here for deleted and not yes reallocated inodes
692 * since this is done in dumpino().
693 */
694 #endif
695 (void)dumpino(dp, ino);
696 }
697
698 #ifdef __linux__
699 (void)time4(&(tend_writing));
700 #else
701 (void)time((time_t *)&(tend_writing));
702 #endif
703 spcl.c_type = TS_END;
704 for (i = 0; i < ntrec; i++)
705 writeheader(maxino - 1);
706
707 tnow = trewind();
708
709 if (pipeout)
710 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
711 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
712 else
713 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
714 spcl.c_tapea,
715 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
716 spcl.c_volume);
717
718 /* report dump performance, avoid division through zero */
719 if (tend_writing - tstart_writing == 0)
720 msg("finished in less than a second\n");
721 else
722 msg("finished in %d seconds, throughput %d KBytes/sec\n",
723 tend_writing - tstart_writing,
724 spcl.c_tapea / (tend_writing - tstart_writing));
725
726 putdumptime();
727 #ifdef __linux__
728 msg("Date of this level %c dump: %s", level,
729 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
730 #else
731 msg("Date of this level %c dump: %s", level,
732 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
733 #endif
734 msg("Date this dump completed: %s", ctime(&tnow));
735
736 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno);
737
738 broadcast("DUMP IS DONE!\7\7\n");
739 msg("DUMP IS DONE\n");
740 Exit(X_FINOK);
741 /* NOTREACHED */
742 return 0; /* gcc - shut up */
743 }
744
745 static void
746 usage(void)
747 {
748 char white[MAXPATHLEN];
749 int i;
750
751 strncpy(white, __progname, MAXPATHLEN-1);
752 white[MAXPATHLEN-1] = '\0';
753 for (i=0; i<MAXPATHLEN; ++i)
754 if (white[i] != '\0') white[i] = ' ';
755
756 fprintf(stderr,
757 "%s %s\n", __progname, _DUMP_VERSION);
758 fprintf(stderr,
759 "usage:\t%s [-0123456789ac"
760 #ifdef KERBEROS
761 "k"
762 #endif
763 "MnSu] [-B records] [-b blocksize] [-d density]\n"
764 "\t%s [-e inode#] [-f file] [-h level] [-s feet] [-T date] filesystem\n"
765 "\t%s [-W | -w]\n", __progname, white, __progname);
766 exit(X_STARTUP);
767 }
768
769 /*
770 * Pick up a numeric argument. It must be nonnegative and in the given
771 * range (except that a vmax of 0 means unlimited).
772 */
773 static long
774 numarg(const char *meaning, long vmin, long vmax)
775 {
776 char *p;
777 long val;
778
779 val = strtol(optarg, &p, 10);
780 if (*p)
781 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
782 if (val < vmin || (vmax && val > vmax))
783 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
784 return (val);
785 }
786
787 void
788 sig(int signo)
789 {
790 switch(signo) {
791 case SIGALRM:
792 case SIGBUS:
793 case SIGFPE:
794 case SIGHUP:
795 case SIGTERM:
796 case SIGTRAP:
797 if (pipeout)
798 quit("Signal on pipe: cannot recover\n");
799 msg("Rewriting attempted as response to unknown signal.\n");
800 (void)fflush(stderr);
801 (void)fflush(stdout);
802 close_rewind();
803 exit(X_REWRITE);
804 /* NOTREACHED */
805 case SIGSEGV:
806 msg("SIGSEGV: ABORTING!\n");
807 (void)signal(SIGSEGV, SIG_DFL);
808 (void)kill(0, SIGSEGV);
809 /* NOTREACHED */
810 }
811 }
812
813 char *
814 rawname(char *cp)
815 {
816 #ifdef __linux__
817 return cp;
818 #else /* __linux__ */
819 static char rawbuf[MAXPATHLEN];
820 char *dp = strrchr(cp, '/');
821
822 if (dp == NULL)
823 return (NULL);
824 *dp = '\0';
825 (void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
826 rawbuf[MAXPATHLEN-1] = '\0';
827 *dp = '/';
828 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
829 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
830 return (rawbuf);
831 #endif /* __linux__ */
832 }
833
834 /*
835 * obsolete --
836 * Change set of key letters and ordered arguments into something
837 * getopt(3) will like.
838 */
839 static void
840 obsolete(int *argcp, char **argvp[])
841 {
842 int argc, flags;
843 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
844
845 /* Setup. */
846 argv = *argvp;
847 argc = *argcp;
848
849 /* Return if no arguments or first argument has leading dash. */
850 ap = argv[1];
851 if (argc == 1 || *ap == '-')
852 return;
853
854 /* Allocate space for new arguments. */
855 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
856 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
857 err(X_STARTUP, "malloc new args");
858
859 *nargv++ = *argv;
860 argv += 2;
861
862 for (flags = 0; *ap; ++ap) {
863 switch (*ap) {
864 case 'B':
865 case 'b':
866 case 'd':
867 case 'e':
868 case 'f':
869 case 'F':
870 case 'h':
871 case 'L':
872 case 's':
873 case 'T':
874 if (*argv == NULL) {
875 warnx("option requires an argument -- %c", *ap);
876 usage();
877 }
878 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
879 err(X_STARTUP, "malloc arg");
880 nargv[0][0] = '-';
881 nargv[0][1] = *ap;
882 (void)strcpy(&nargv[0][2], *argv);
883 ++argv;
884 ++nargv;
885 break;
886 default:
887 if (!flags) {
888 *p++ = '-';
889 flags = 1;
890 }
891 *p++ = *ap;
892 break;
893 }
894 }
895
896 /* Terminate flags. */
897 if (flags) {
898 *p = '\0';
899 *nargv++ = flagsp;
900 }
901
902 /* Copy remaining arguments. */
903 while ((*nargv++ = *argv++));
904
905 /* Update argument count. */
906 *argcp = nargv - *argvp - 1;
907 }
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