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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@noos.fr>, 1999-2000
6 * Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
7 */
8
9 /*-
10 * Copyright (c) 1980, 1991, 1993, 1994
11 * The Regents of the University of California. All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 */
41
42 #ifndef lint
43 static const char rcsid[] =
44 "$Id: main.c,v 1.51 2001/07/18 09:50:48 stelian Exp $";
45 #endif /* not lint */
46
47 #include <config.h>
48 #include <compatlfs.h>
49 #include <ctype.h>
50 #include <compaterr.h>
51 #include <fcntl.h>
52 #include <fstab.h>
53 #include <signal.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <string.h>
57 #include <unistd.h>
58
59 #include <sys/param.h>
60 #include <sys/time.h>
61 #include <time.h>
62 #ifdef __linux__
63 #ifdef HAVE_EXT2FS_EXT2_FS_H
64 #include <ext2fs/ext2_fs.h>
65 #else
66 #include <linux/ext2_fs.h>
67 #endif
68 #include <ext2fs/ext2fs.h>
69 #include <sys/stat.h>
70 #include <bsdcompat.h>
71 #elif defined sunos
72 #include <sys/vnode.h>
73
74 #include <ufs/inode.h>
75 #include <ufs/fs.h>
76 #else
77 #include <ufs/ufs/dinode.h>
78 #include <ufs/ffs/fs.h>
79 #endif
80
81 #include <protocols/dumprestore.h>
82
83 #include "dump.h"
84 #include "pathnames.h"
85 #include "bylabel.h"
86
87 #ifndef SBOFF
88 #define SBOFF (SBLOCK * DEV_BSIZE)
89 #endif
90
91 int notify = 0; /* notify operator flag */
92 int blockswritten = 0; /* number of blocks written on current tape */
93 int tapeno = 0; /* current tape number */
94 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
95 int ntrec = NTREC; /* # tape blocks in each tape record */
96 int cartridge = 0; /* Assume non-cartridge tape */
97 #ifdef USE_QFA
98 int tapepos = 0; /* assume no QFA tapeposition needed by user */
99 #endif /* USE_QFA */
100 int dokerberos = 0; /* Use Kerberos authentication */
101 long dev_bsize = 1; /* recalculated below */
102 long blocksperfile; /* output blocks per file */
103 char *host = NULL; /* remote host (if any) */
104 int sizest = 0; /* return size estimate only */
105 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
106 long long bytes_written = 0; /* total bytes written */
107 long uncomprblks = 0;/* uncompressed blocks written */
108
109 #ifdef __linux__
110 char *__progname;
111 #endif
112
113 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
114 static long numarg __P((const char *, long, long));
115 static void obsolete __P((int *, char **[]));
116 static void usage __P((void));
117
118 dump_ino_t iexclude_list[IEXCLUDE_MAXNUM];/* the inode exclude list */
119 int iexclude_num = 0; /* number of elements in the list */
120
121 int
122 main(int argc, char *argv[])
123 {
124 register dump_ino_t ino;
125 register int dirty;
126 register struct dinode *dp;
127 register struct fstab *dt;
128 register char *map;
129 register int ch;
130 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
131 dump_ino_t maxino;
132 struct STAT statbuf;
133 dev_t filedev = 0;
134 #ifdef __linux__
135 errcode_t retval;
136 char directory[MAXPATHLEN];
137 char pathname[MAXPATHLEN];
138 #endif
139 time_t tnow;
140 char *diskparam;
141
142 spcl.c_label[0] = '\0';
143 spcl.c_date = time(NULL);
144
145 #ifdef __linux__
146 __progname = argv[0];
147 directory[0] = 0;
148 initialize_ext2_error_table();
149 #endif
150
151 tsize = 0; /* Default later, based on 'c' option for cart tapes */
152 unlimited = 1;
153 eot_script = NULL;
154 if ((tapeprefix = getenv("TAPE")) == NULL)
155 tapeprefix = _PATH_DEFTAPE;
156 dumpdates = _PATH_DUMPDATES;
157 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
158 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
159 level = '0';
160
161 if (argc < 2)
162 usage();
163
164 obsolete(&argc, &argv);
165
166 #ifdef USE_QFA
167 gTapeposfd = -1;
168 #endif /* USE_QFA */
169
170 while ((ch = getopt(argc, argv,
171 "0123456789aB:b:cd:e:f:F:h:L:"
172 #ifdef KERBEROS
173 "k"
174 #endif
175 "Mn"
176 #ifdef USE_QFA
177 "Q:"
178 #endif
179 "s:ST:uWw"
180 #ifdef HAVE_ZLIB
181 "z::"
182 #endif
183 )) != -1)
184 switch (ch) {
185 /* dump level */
186 case '0': case '1': case '2': case '3': case '4':
187 case '5': case '6': case '7': case '8': case '9':
188 level = ch;
189 break;
190
191 case 'a': /* `auto-size', Write to EOM. */
192 unlimited = 1;
193 break;
194
195 case 'B': /* blocks per output file */
196 unlimited = 0;
197 blocksperfile = numarg("number of blocks per file",
198 1L, 0L);
199 break;
200
201 case 'b': /* blocks per tape write */
202 ntrec = numarg("number of blocks per write",
203 1L, 1000L);
204 if (ntrec > maxbsize/1024) {
205 msg("Please choose a blocksize <= %dkB\n",
206 maxbsize/1024);
207 msg("The ENTIRE dump is aborted.\n");
208 exit(X_STARTUP);
209 }
210 bflag = 1;
211 break;
212
213 case 'c': /* Tape is cart. not 9-track */
214 unlimited = 0;
215 cartridge = 1;
216 break;
217
218 case 'd': /* density, in bits per inch */
219 unlimited = 0;
220 density = numarg("density", 10L, 327670L) / 10;
221 if (density >= 625 && !bflag)
222 ntrec = HIGHDENSITYTREC;
223 break;
224
225 /* 04-Feb-00 ILC */
226 case 'e': /* exclude an inode */
227 if (iexclude_num == IEXCLUDE_MAXNUM) {
228 msg("Too many -e options\n");
229 msg("The ENTIRE dump is aborted.\n");
230 exit(X_STARTUP);
231 }
232 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
233 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
234 msg("Cannot exclude inode %ld\n", (long)iexclude_list[iexclude_num-1]);
235 msg("The ENTIRE dump is aborted.\n");
236 exit(X_STARTUP);
237 }
238 msg("Added %d to exclude list\n",
239 iexclude_list[iexclude_num-1]);
240 break;
241
242 case 'f': /* output file */
243 tapeprefix = optarg;
244 break;
245
246 case 'F': /* end of tape script */
247 eot_script = optarg;
248 break;
249
250 case 'h':
251 honorlevel = numarg("honor level", 0L, 10L);
252 break;
253
254 #ifdef KERBEROS
255 case 'k':
256 dokerberos = 1;
257 break;
258 #endif
259
260 case 'L':
261 /*
262 * Note that although there are LBLSIZE characters,
263 * the last must be '\0', so the limit on strlen()
264 * is really LBLSIZE-1.
265 */
266 strncpy(spcl.c_label, optarg, LBLSIZE);
267 spcl.c_label[LBLSIZE-1] = '\0';
268 if (strlen(optarg) > LBLSIZE-1) {
269 msg(
270 "WARNING Label `%s' is larger than limit of %d characters.\n",
271 optarg, LBLSIZE-1);
272 msg("WARNING: Using truncated label `%s'.\n",
273 spcl.c_label);
274 }
275 break;
276
277 case 'M': /* multi-volume flag */
278 Mflag = 1;
279 break;
280
281 case 'n': /* notify operators */
282 notify = 1;
283 break;
284
285 #ifdef USE_QFA
286 case 'Q': /* create tapeposfile */
287 gTapeposfile = optarg;
288 tapepos = 1;
289 break;
290 #endif /* USE_QFA */
291
292 case 's': /* tape size, feet */
293 unlimited = 0;
294 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
295 break;
296
297 case 'S':
298 sizest = 1; /* return size estimate only */
299 break;
300
301 case 'T': /* time of last dump */
302 spcl.c_ddate = unctime(optarg);
303 if (spcl.c_ddate < 0) {
304 msg("bad time \"%s\"\n", optarg);
305 msg("The ENTIRE dump is aborted.\n");
306 exit(X_STARTUP);
307 }
308 Tflag = 1;
309 lastlevel = '?';
310 break;
311
312 case 'u': /* update dumpdates */
313 uflag = 1;
314 break;
315
316 case 'W': /* what to do */
317 case 'w':
318 lastdump(ch);
319 exit(X_FINOK); /* do nothing else */
320 #ifdef HAVE_ZLIB
321 case 'z':
322 compressed = 2;
323 if (optarg)
324 compressed = numarg("compress level", 1L, 9L);
325 break;
326 #endif /* HAVE_ZLIB */
327
328 default:
329 usage();
330 }
331 argc -= optind;
332 argv += optind;
333
334 if (argc < 1) {
335 msg("Must specify disk or filesystem\n");
336 msg("The ENTIRE dump is aborted.\n");
337 exit(X_STARTUP);
338 }
339 diskparam = *argv++;
340 if (strlen(diskparam) >= MAXPATHLEN) {
341 msg("Disk or filesystem name too long: %s\n", diskparam);
342 msg("The ENTIRE dump is aborted.\n");
343 exit(X_STARTUP);
344 }
345 argc--;
346 if (Tflag && uflag) {
347 msg("You cannot use the T and u flags together.\n");
348 msg("The ENTIRE dump is aborted.\n");
349 exit(X_STARTUP);
350 }
351 if (strcmp(tapeprefix, "-") == 0) {
352 pipeout++;
353 tapeprefix = "standard output";
354 }
355
356 if (blocksperfile && !compressed)
357 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
358 else if (!unlimited) {
359 /*
360 * Determine how to default tape size and density
361 *
362 * density tape size
363 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
364 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
365 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
366 * (450*4 - slop)
367 * hilit19 hits again: "
368 */
369 if (density == 0)
370 density = cartridge ? 100 : 160;
371 if (tsize == 0)
372 tsize = cartridge ? 1700L*120L : 2300L*120L;
373 }
374
375 if (strchr(tapeprefix, ':')) {
376 host = tapeprefix;
377 tapeprefix = strchr(host, ':');
378 *tapeprefix++ = '\0';
379 #ifdef RDUMP
380 if (index(tapeprefix, '\n')) {
381 msg("invalid characters in tape\n");
382 msg("The ENTIRE dump is aborted.\n");
383 exit(X_STARTUP);
384 }
385 if (rmthost(host) == 0)
386 exit(X_STARTUP);
387 #else
388 msg("remote dump not enabled\n");
389 msg("The ENTIRE dump is aborted.\n");
390 exit(X_STARTUP);
391 #endif
392 }
393 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
394
395 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
396 signal(SIGHUP, sig);
397 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
398 signal(SIGTRAP, sig);
399 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
400 signal(SIGFPE, sig);
401 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
402 signal(SIGBUS, sig);
403 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
404 signal(SIGSEGV, sig);
405 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
406 signal(SIGTERM, sig);
407 if (signal(SIGINT, interrupt) == SIG_IGN)
408 signal(SIGINT, SIG_IGN);
409 set_operators(); /* /etc/group snarfed */
410 getfstab(); /* /etc/fstab snarfed */
411
412 /*
413 * disk may end in / and this can confuse
414 * fstabsearch.
415 */
416 i = strlen(diskparam) - 1;
417 if (i > 1 && diskparam[i] == '/')
418 diskparam[i] = '\0';
419
420 disk = get_device_name(diskparam);
421 if (!disk) { /* null means the disk is some form
422 of LABEL= or UID= but it was not
423 found */
424 msg("Cannot find a disk having %s\n", diskparam);
425 msg("The ENTIRE dump is aborted.\n");
426 exit(X_STARTUP);
427 }
428 /*
429 * disk can be either the full special file name,
430 * the suffix of the special file name,
431 * the special name missing the leading '/',
432 * the file system name with or without the leading '/'.
433 */
434 if ((dt = fstabsearch(disk)) != NULL) {
435 /* if found then only one parameter (i.e. partition)
436 * is allowed */
437 if (argc >= 1) {
438 (void)fprintf(stderr, "Unknown arguments to dump:");
439 while (argc--)
440 (void)fprintf(stderr, " %s", *argv++);
441 (void)fprintf(stderr, "\n");
442 msg("The ENTIRE dump is aborted.\n");
443 exit(X_STARTUP);
444 }
445 disk = rawname(dt->fs_spec);
446 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
447 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
448 } else {
449 #ifdef __linux__
450 #ifdef HAVE_REALPATH
451 if (realpath(disk, pathname) == NULL)
452 #endif
453 strcpy(pathname, disk);
454 /*
455 * The argument could be now a mountpoint of
456 * a filesystem specified in fstab. Search for it.
457 */
458 if ((dt = fstabsearch(pathname)) != NULL) {
459 disk = rawname(dt->fs_spec);
460 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
461 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
462 } else {
463 /*
464 * The argument was not found in the fstab
465 * assume that this is a subtree and search for it
466 */
467 dt = fstabsearchdir(pathname, directory);
468 if (dt != NULL) {
469 char name[MAXPATHLEN];
470 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
471 (void)snprintf(name, sizeof(name), "%s (dir %s)",
472 dt->fs_file, directory);
473 (void)strncpy(spcl.c_filesys, name, NAMELEN);
474 disk = rawname(dt->fs_spec);
475 } else {
476 (void)strncpy(spcl.c_dev, disk, NAMELEN);
477 (void)strncpy(spcl.c_filesys, "an unlisted file system",
478 NAMELEN);
479 }
480 }
481 #else
482 (void)strncpy(spcl.c_dev, disk, NAMELEN);
483 (void)strncpy(spcl.c_filesys, "an unlisted file system",
484 NAMELEN);
485 #endif
486 }
487
488 if (directory[0] != 0) {
489 if (level != '0') {
490 msg("Only level 0 dumps are allowed on a subdirectory\n");
491 msg("The ENTIRE dump is aborted.\n");
492 exit(X_STARTUP);
493 }
494 if (uflag) {
495 msg("You can't update the dumpdates file when dumping a subdirectory\n");
496 msg("The ENTIRE dump is aborted.\n");
497 exit(X_STARTUP);
498 }
499 }
500 spcl.c_dev[NAMELEN-1] = '\0';
501 spcl.c_filesys[NAMELEN-1] = '\0';
502 (void)gethostname(spcl.c_host, NAMELEN);
503 spcl.c_host[NAMELEN-1] = '\0';
504 spcl.c_level = level - '0';
505 spcl.c_type = TS_TAPE;
506 if (!Tflag)
507 getdumptime(uflag); /* dumpdates snarfed */
508
509 if (spcl.c_ddate == 0 && spcl.c_level) {
510 msg("WARNING: There is no inferior level dump on this filesystem\n");
511 msg("WARNING: Assuming a level 0 dump by default\n");
512 level = '0';
513 spcl.c_level = 0;
514 }
515
516 if (Mflag)
517 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
518 else
519 strncpy(tape, tapeprefix, MAXPATHLEN);
520 tape[MAXPATHLEN - 1] = '\0';
521
522 if (!pipeout) {
523 if (STAT(tape, &statbuf) != -1)
524 fifoout= statbuf.st_mode & S_IFIFO;
525 }
526
527 if (!sizest) {
528
529 msg("Date of this level %c dump: %s", level,
530 ctime4(&spcl.c_date));
531 if (spcl.c_ddate)
532 msg("Date of last level %c dump: %s", lastlevel,
533 ctime4(&spcl.c_ddate));
534 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
535 if (host)
536 msgtail("to %s on host %s\n", tape, host);
537 else
538 msgtail("to %s\n", tape);
539 } /* end of size estimate */
540
541 #ifdef __linux__
542 retval = dump_fs_open(disk, &fs);
543 if (retval) {
544 com_err(disk, retval, "while opening filesystem");
545 if (retval == EXT2_ET_REV_TOO_HIGH)
546 msg("Get a newer version of dump!\n");
547 msg("The ENTIRE dump is aborted.\n");
548 exit(X_STARTUP);
549 }
550 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
551 com_err(disk, retval, "while opening filesystem");
552 msg("Get a newer version of dump!\n");
553 msg("The ENTIRE dump is aborted.\n");
554 exit(X_STARTUP);
555 }
556 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
557 msg("Cannot open %s\n", disk);
558 msg("The ENTIRE dump is aborted.\n");
559 exit(X_STARTUP);
560 }
561 /* if no user label specified, use ext2 filesystem label if available */
562 if (spcl.c_label[0] == '\0') {
563 const char *lbl;
564 if ( (lbl = get_device_label(disk)) != NULL) {
565 strncpy(spcl.c_label, lbl, LBLSIZE);
566 spcl.c_label[LBLSIZE-1] = '\0';
567 }
568 else
569 strcpy(spcl.c_label, "none"); /* safe strcpy. */
570 }
571 sync();
572 dev_bsize = DEV_BSIZE;
573 dev_bshift = ffs(dev_bsize) - 1;
574 if (dev_bsize != (1 << dev_bshift))
575 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
576 tp_bshift = ffs(TP_BSIZE) - 1;
577 if (TP_BSIZE != (1 << tp_bshift))
578 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
579 maxino = fs->super->s_inodes_count;
580 #if 0
581 spcl.c_flags |= DR_NEWINODEFMT;
582 #endif
583 #else /* __linux __*/
584 if ((diskfd = open(disk, O_RDONLY)) < 0) {
585 msg("Cannot open %s\n", disk);
586 msg("The ENTIRE dump is aborted.\n");
587 exit(X_STARTUP);
588 }
589 sync();
590 sblock = (struct fs *)sblock_buf;
591 bread(SBOFF, (char *) sblock, SBSIZE);
592 if (sblock->fs_magic != FS_MAGIC)
593 quit("bad sblock magic number\n");
594 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
595 dev_bshift = ffs(dev_bsize) - 1;
596 if (dev_bsize != (1 << dev_bshift))
597 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
598 tp_bshift = ffs(TP_BSIZE) - 1;
599 if (TP_BSIZE != (1 << tp_bshift))
600 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
601 #ifdef FS_44INODEFMT
602 if (sblock->fs_inodefmt >= FS_44INODEFMT)
603 spcl.c_flags |= DR_NEWINODEFMT;
604 #endif
605 maxino = sblock->fs_ipg * sblock->fs_ncg;
606 #endif /* __linux__ */
607 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
608 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
609 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
610 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
611 if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
612 quit("out of memory allocating inode maps\n");
613 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
614
615 nonodump = spcl.c_level < honorlevel;
616
617 if (!sizest) {
618 msg("Label: %s\n", spcl.c_label);
619
620 if (compressed)
621 msg("Compressing output at compression level %d\n",
622 compressed);
623 }
624
625 #if defined(SIGINFO)
626 (void)signal(SIGINFO, statussig);
627 #endif
628
629 if (!sizest)
630 msg("mapping (Pass I) [regular files]\n");
631 #ifdef __linux__
632 if (directory[0] == 0)
633 anydirskipped = mapfiles(maxino, &tapesize);
634 else {
635 if (STAT(pathname, &statbuf) == -1) {
636 msg("File cannot be accessed (%s).\n", pathname);
637 msg("The ENTIRE dump is aborted.\n");
638 exit(X_STARTUP);
639 }
640 filedev = statbuf.st_dev;
641 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
642 anydirskipped = maponefile(maxino, &tapesize,
643 directory);
644 else
645 anydirskipped = mapfilesfromdir(maxino, &tapesize,
646 directory);
647 }
648 while (argc--) {
649 int anydirskipped2;
650 char *p = *argv;
651 /* check if file is available */
652 if (STAT(p, &statbuf) == -1) {
653 msg("File cannot be accessed (%s).\n", p);
654 msg("The ENTIRE dump is aborted.\n");
655 exit(X_STARTUP);
656 }
657 /* check if file is on same unix partiton as the first
658 * argument */
659 if (statbuf.st_dev != filedev) {
660 msg("Files are not on same file system (%s).\n", p);
661 msg("The ENTIRE dump is aborted.\n");
662 exit(X_STARTUP);
663 }
664 /* check if file is a directory */
665 if (!(statbuf.st_mode & S_IFDIR))
666 anydirskipped2 = maponefile(maxino, &tapesize,
667 p+strlen(dt->fs_file));
668 else
669 /* read directory inodes.
670 * NOTE: nested directories are not recognized
671 * so inodes may be umped twice!
672 */
673 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
674 p+strlen(dt->fs_file));
675 if (!anydirskipped)
676 anydirskipped = anydirskipped2;
677 argv++;
678 }
679 #else
680 anydirskipped = mapfiles(maxino, &tapesize);
681 #endif
682
683 if (!sizest)
684 msg("mapping (Pass II) [directories]\n");
685 while (anydirskipped) {
686 anydirskipped = mapdirs(maxino, &tapesize);
687 }
688
689 if (sizest) {
690 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
691 exit(X_FINOK);
692 } /* stop here for size estimate */
693
694 if (pipeout || unlimited) {
695 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
696 msg("estimated %ld tape blocks.\n", tapesize);
697 } else {
698 double fetapes;
699
700 if (blocksperfile)
701 fetapes = (double) tapesize / blocksperfile;
702 else if (cartridge) {
703 /* Estimate number of tapes, assuming streaming stops at
704 the end of each block written, and not in mid-block.
705 Assume no erroneous blocks; this can be compensated
706 for with an artificially low tape size. */
707 fetapes =
708 ( (double) tapesize /* blocks */
709 * TP_BSIZE /* bytes/block */
710 * (1.0/density) /* 0.1" / byte " */
711 +
712 (double) tapesize /* blocks */
713 * (1.0/ntrec) /* streaming-stops per block */
714 * 15.48 /* 0.1" / streaming-stop " */
715 ) * (1.0 / tsize ); /* tape / 0.1" " */
716 } else {
717 /* Estimate number of tapes, for old fashioned 9-track
718 tape */
719 int tenthsperirg = (density == 625) ? 3 : 7;
720 fetapes =
721 ( (double) tapesize /* blocks */
722 * TP_BSIZE /* bytes / block */
723 * (1.0/density) /* 0.1" / byte " */
724 +
725 (double) tapesize /* blocks */
726 * (1.0/ntrec) /* IRG's / block */
727 * tenthsperirg /* 0.1" / IRG " */
728 ) * (1.0 / tsize ); /* tape / 0.1" " */
729 }
730 etapes = fetapes; /* truncating assignment */
731 etapes++;
732 /* count the dumped inodes map on each additional tape */
733 tapesize += (etapes - 1) *
734 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
735 tapesize += etapes + ntrec; /* headers + trailer blks */
736 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
737 tapesize, fetapes);
738 }
739
740 #ifdef USE_QFA
741 if (tapepos) {
742 msg("writing QFA positions to %s\n", gTapeposfile);
743 if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT)) < 0)
744 quit("can't open tapeposfile\n");
745 /* print QFA-file header */
746 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
747 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
748 quit("can't write tapeposfile\n");
749 sprintf(gTps, "ino\ttapeno\ttapepos\n");
750 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
751 quit("can't write tapeposfile\n");
752 }
753 #endif /* USE_QFA */
754
755 /*
756 * Allocate tape buffer.
757 */
758 if (!alloctape())
759 quit(
760 "can't allocate tape buffers - try a smaller blocking factor.\n");
761
762 startnewtape(1);
763 tstart_writing = time(NULL);
764 dumpmap(usedinomap, TS_CLRI, maxino - 1);
765
766 msg("dumping (Pass III) [directories]\n");
767 dirty = 0; /* XXX just to get gcc to shut up */
768 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
769 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
770 dirty = *map++;
771 else
772 dirty >>= 1;
773 if ((dirty & 1) == 0)
774 continue;
775 /*
776 * Skip directory inodes deleted and maybe reallocated
777 */
778 dp = getino(ino);
779 if ((dp->di_mode & IFMT) != IFDIR)
780 continue;
781 #ifdef __linux__
782 /*
783 * Skip directory inodes deleted and not yes reallocated...
784 */
785 if (dp->di_nlink == 0 || dp->di_dtime != 0)
786 continue;
787 (void)dumpdirino(dp, ino);
788 #else
789 (void)dumpino(dp, ino);
790 #endif
791 }
792
793 msg("dumping (Pass IV) [regular files]\n");
794 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
795 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
796 dirty = *map++;
797 else
798 dirty >>= 1;
799 if ((dirty & 1) == 0)
800 continue;
801 /*
802 * Skip inodes deleted and reallocated as directories.
803 */
804 dp = getino(ino);
805 if ((dp->di_mode & IFMT) == IFDIR)
806 continue;
807 #ifdef __linux__
808 /*
809 * No need to check here for deleted and not yet reallocated
810 * inodes since this is done in dumpino().
811 */
812 #endif
813 (void)dumpino(dp, ino);
814 }
815
816 tend_writing = time(NULL);
817 spcl.c_type = TS_END;
818 /*
819 * Finish off the current tape record with trailer blocks, to ensure
820 * at least the data in the last partial record makes it to tape.
821 * Also make sure we write at least 1 trailer block.
822 */
823 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
824 writeheader(maxino - 1);
825
826 tnow = trewind();
827
828 if (pipeout || fifoout)
829 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
830 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
831 else
832 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
833 spcl.c_tapea,
834 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
835 spcl.c_volume);
836
837 /* report dump performance, avoid division by zero */
838 if (tend_writing - tstart_writing == 0)
839 msg("finished in less than a second\n");
840 else
841 msg("finished in %d seconds, throughput %d kBytes/sec\n",
842 tend_writing - tstart_writing,
843 spcl.c_tapea / (tend_writing - tstart_writing));
844
845 putdumptime();
846 msg("Date of this level %c dump: %s", level,
847 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
848 msg("Date this dump completed: %s", ctime(&tnow));
849
850 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
851 if (compressed) {
852 long tapekb = bytes_written / 1024;
853 double rate = .0005 + (double) spcl.c_tapea / tapekb;
854 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
855 spcl.c_tapea, tapekb, rate);
856 }
857
858 broadcast("DUMP IS DONE!\7\7\n");
859 msg("DUMP IS DONE\n");
860 Exit(X_FINOK);
861 /* NOTREACHED */
862 return 0; /* gcc - shut up */
863 }
864
865 static void
866 usage(void)
867 {
868 char white[MAXPATHLEN];
869 const char *ext2ver, *ext2date;
870
871 memset(white, ' ', MAXPATHLEN);
872 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
873
874 #ifdef __linux__
875 ext2fs_get_library_version(&ext2ver, &ext2date);
876 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
877 __progname, _DUMP_VERSION, ext2ver, ext2date);
878 #else
879 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
880 #endif
881 fprintf(stderr,
882 "usage:\t%s [-0123456789ac"
883 #ifdef KERBEROS
884 "k"
885 #endif
886 "MnSu"
887 "] [-B records] [-b blocksize] [-d density]\n"
888 "\t%s [-e inode#] [-f file] [-h level] "
889 #ifdef USE_QFA
890 "[-Q file] "
891 #endif
892 "[-s feet]\n"
893 "\t%s [-T date] "
894 #ifdef HAVE_ZLIB
895 "[-z zlevel] "
896 #endif
897 "filesystem\n"
898 "\t%s [-W | -w]\n",
899 __progname, white, white, __progname);
900 exit(X_STARTUP);
901 }
902
903 /*
904 * Pick up a numeric argument. It must be nonnegative and in the given
905 * range (except that a vmax of 0 means unlimited).
906 */
907 static long
908 numarg(const char *meaning, long vmin, long vmax)
909 {
910 char *p;
911 long val;
912
913 val = strtol(optarg, &p, 10);
914 if (*p)
915 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
916 if (val < vmin || (vmax && val > vmax))
917 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
918 return (val);
919 }
920
921 void
922 sig(int signo)
923 {
924 switch(signo) {
925 case SIGALRM:
926 case SIGBUS:
927 case SIGFPE:
928 case SIGHUP:
929 case SIGTERM:
930 case SIGTRAP:
931 if (pipeout || fifoout)
932 quit("Signal on pipe: cannot recover\n");
933 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
934 (void)fflush(stderr);
935 (void)fflush(stdout);
936 close_rewind();
937 exit(X_REWRITE);
938 /* NOTREACHED */
939 case SIGSEGV:
940 msg("SIGSEGV: ABORTING!\n");
941 (void)signal(SIGSEGV, SIG_DFL);
942 (void)kill(0, SIGSEGV);
943 /* NOTREACHED */
944 }
945 }
946
947 const char *
948 rawname(const char *cp)
949 {
950 #ifdef __linux__
951 return cp;
952 #else /* __linux__ */
953 static char rawbuf[MAXPATHLEN];
954 char *dp = strrchr(cp, '/');
955
956 if (dp == NULL)
957 return (NULL);
958 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
959 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
960 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
961 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
962 return (rawbuf);
963 #endif /* __linux__ */
964 }
965
966 /*
967 * obsolete --
968 * Change set of key letters and ordered arguments into something
969 * getopt(3) will like.
970 */
971 static void
972 obsolete(int *argcp, char **argvp[])
973 {
974 int argc, flags;
975 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
976
977 /* Setup. */
978 argv = *argvp;
979 argc = *argcp;
980
981 /* Return if no arguments or first argument has leading dash. */
982 ap = argv[1];
983 if (argc == 1 || *ap == '-')
984 return;
985
986 /* Allocate space for new arguments. */
987 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
988 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
989 err(X_STARTUP, "malloc new args");
990
991 *nargv++ = *argv;
992 argv += 2;
993
994 for (flags = 0; *ap; ++ap) {
995 switch (*ap) {
996 case 'B':
997 case 'b':
998 case 'd':
999 case 'e':
1000 case 'f':
1001 case 'F':
1002 case 'h':
1003 case 'L':
1004 case 'Q':
1005 case 's':
1006 case 'T':
1007 if (*argv == NULL) {
1008 warnx("option requires an argument -- %c", *ap);
1009 usage();
1010 }
1011 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1012 err(X_STARTUP, "malloc arg");
1013 nargv[0][0] = '-';
1014 nargv[0][1] = *ap;
1015 (void)strcpy(&nargv[0][2], *argv);
1016 ++argv;
1017 ++nargv;
1018 break;
1019 default:
1020 if (!flags) {
1021 *p++ = '-';
1022 flags = 1;
1023 }
1024 *p++ = *ap;
1025 break;
1026 }
1027 }
1028
1029 /* Terminate flags. */
1030 if (flags) {
1031 *p = '\0';
1032 *nargv++ = flagsp;
1033 }
1034
1035 /* Copy remaining arguments. */
1036 while ((*nargv++ = *argv++));
1037
1038 /* Update argument count. */
1039 *argcp = nargv - *argvp - 1;
1040 }
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