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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 1.49 2001/06/18 10:58:28 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 #ifdef __linux__
62 #ifdef HAVE_EXT2FS_EXT2_FS_H
63 #include <ext2fs/ext2_fs.h>
64 #else
65 #include <linux/ext2_fs.h>
66 #endif
67 #include <ext2fs/ext2fs.h>
68 #include <time.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)
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 (!sizest) {
523
524 msg("Date of this level %c dump: %s", level,
525 ctime4(&spcl.c_date));
526 if (spcl.c_ddate)
527 msg("Date of last level %c dump: %s", lastlevel,
528 ctime4(&spcl.c_ddate));
529 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
530 if (host)
531 msgtail("to %s on host %s\n", tape, host);
532 else
533 msgtail("to %s\n", tape);
534 } /* end of size estimate */
535
536 #ifdef __linux__
537 retval = dump_fs_open(disk, &fs);
538 if (retval) {
539 com_err(disk, retval, "while opening filesystem");
540 if (retval == EXT2_ET_REV_TOO_HIGH)
541 msg("Get a newer version of dump!\n");
542 msg("The ENTIRE dump is aborted.\n");
543 exit(X_STARTUP);
544 }
545 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
546 com_err(disk, retval, "while opening filesystem");
547 msg("Get a newer version of dump!\n");
548 msg("The ENTIRE dump is aborted.\n");
549 exit(X_STARTUP);
550 }
551 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
552 msg("Cannot open %s\n", disk);
553 msg("The ENTIRE dump is aborted.\n");
554 exit(X_STARTUP);
555 }
556 /* if no user label specified, use ext2 filesystem label if available */
557 if (spcl.c_label[0] == '\0') {
558 const char *lbl;
559 if ( (lbl = get_device_label(disk)) != NULL) {
560 strncpy(spcl.c_label, lbl, LBLSIZE);
561 spcl.c_label[LBLSIZE-1] = '\0';
562 }
563 else
564 strcpy(spcl.c_label, "none"); /* safe strcpy. */
565 }
566 sync();
567 dev_bsize = DEV_BSIZE;
568 dev_bshift = ffs(dev_bsize) - 1;
569 if (dev_bsize != (1 << dev_bshift))
570 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
571 tp_bshift = ffs(TP_BSIZE) - 1;
572 if (TP_BSIZE != (1 << tp_bshift))
573 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
574 maxino = fs->super->s_inodes_count;
575 #if 0
576 spcl.c_flags |= DR_NEWINODEFMT;
577 #endif
578 #else /* __linux __*/
579 if ((diskfd = open(disk, O_RDONLY)) < 0) {
580 msg("Cannot open %s\n", disk);
581 msg("The ENTIRE dump is aborted.\n");
582 exit(X_STARTUP);
583 }
584 sync();
585 sblock = (struct fs *)sblock_buf;
586 bread(SBOFF, (char *) sblock, SBSIZE);
587 if (sblock->fs_magic != FS_MAGIC)
588 quit("bad sblock magic number\n");
589 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
590 dev_bshift = ffs(dev_bsize) - 1;
591 if (dev_bsize != (1 << dev_bshift))
592 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
593 tp_bshift = ffs(TP_BSIZE) - 1;
594 if (TP_BSIZE != (1 << tp_bshift))
595 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
596 #ifdef FS_44INODEFMT
597 if (sblock->fs_inodefmt >= FS_44INODEFMT)
598 spcl.c_flags |= DR_NEWINODEFMT;
599 #endif
600 maxino = sblock->fs_ipg * sblock->fs_ncg;
601 #endif /* __linux__ */
602 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
603 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
604 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
605 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
606 if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
607 quit("out of memory allocating inode maps\n");
608 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
609
610 nonodump = spcl.c_level < honorlevel;
611
612 if (!sizest) {
613 msg("Label: %s\n", spcl.c_label);
614
615 if (compressed)
616 msg("Compressing output at compression level %d\n",
617 compressed);
618 }
619
620 #if defined(SIGINFO)
621 (void)signal(SIGINFO, statussig);
622 #endif
623
624 if (!sizest)
625 msg("mapping (Pass I) [regular files]\n");
626 #ifdef __linux__
627 if (directory[0] == 0)
628 anydirskipped = mapfiles(maxino, &tapesize);
629 else {
630 if (STAT(pathname, &statbuf) == -1) {
631 msg("File cannot be accessed (%s).\n", pathname);
632 msg("The ENTIRE dump is aborted.\n");
633 exit(X_STARTUP);
634 }
635 filedev = statbuf.st_dev;
636 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
637 anydirskipped = maponefile(maxino, &tapesize,
638 directory);
639 else
640 anydirskipped = mapfilesfromdir(maxino, &tapesize,
641 directory);
642 }
643 while (argc--) {
644 int anydirskipped2;
645 char *p = *argv;
646 /* check if file is available */
647 if (STAT(p, &statbuf) == -1) {
648 msg("File cannot be accessed (%s).\n", p);
649 msg("The ENTIRE dump is aborted.\n");
650 exit(X_STARTUP);
651 }
652 /* check if file is on same unix partiton as the first
653 * argument */
654 if (statbuf.st_dev != filedev) {
655 msg("Files are not on same file system (%s).\n", p);
656 msg("The ENTIRE dump is aborted.\n");
657 exit(X_STARTUP);
658 }
659 /* check if file is a directory */
660 if (!(statbuf.st_mode & S_IFDIR))
661 anydirskipped2 = maponefile(maxino, &tapesize,
662 p+strlen(dt->fs_file));
663 else
664 /* read directory inodes.
665 * NOTE: nested directories are not recognized
666 * so inodes may be umped twice!
667 */
668 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
669 p+strlen(dt->fs_file));
670 if (!anydirskipped)
671 anydirskipped = anydirskipped2;
672 argv++;
673 }
674 #else
675 anydirskipped = mapfiles(maxino, &tapesize);
676 #endif
677
678 if (!sizest)
679 msg("mapping (Pass II) [directories]\n");
680 while (anydirskipped) {
681 anydirskipped = mapdirs(maxino, &tapesize);
682 }
683
684 if (sizest) {
685 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
686 exit(X_FINOK);
687 } /* stop here for size estimate */
688
689 if (pipeout || unlimited) {
690 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
691 msg("estimated %ld tape blocks.\n", tapesize);
692 } else {
693 double fetapes;
694
695 if (blocksperfile)
696 fetapes = (double) tapesize / blocksperfile;
697 else if (cartridge) {
698 /* Estimate number of tapes, assuming streaming stops at
699 the end of each block written, and not in mid-block.
700 Assume no erroneous blocks; this can be compensated
701 for with an artificially low tape size. */
702 fetapes =
703 ( (double) tapesize /* blocks */
704 * TP_BSIZE /* bytes/block */
705 * (1.0/density) /* 0.1" / byte " */
706 +
707 (double) tapesize /* blocks */
708 * (1.0/ntrec) /* streaming-stops per block */
709 * 15.48 /* 0.1" / streaming-stop " */
710 ) * (1.0 / tsize ); /* tape / 0.1" " */
711 } else {
712 /* Estimate number of tapes, for old fashioned 9-track
713 tape */
714 int tenthsperirg = (density == 625) ? 3 : 7;
715 fetapes =
716 ( (double) tapesize /* blocks */
717 * TP_BSIZE /* bytes / block */
718 * (1.0/density) /* 0.1" / byte " */
719 +
720 (double) tapesize /* blocks */
721 * (1.0/ntrec) /* IRG's / block */
722 * tenthsperirg /* 0.1" / IRG " */
723 ) * (1.0 / tsize ); /* tape / 0.1" " */
724 }
725 etapes = fetapes; /* truncating assignment */
726 etapes++;
727 /* count the dumped inodes map on each additional tape */
728 tapesize += (etapes - 1) *
729 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
730 tapesize += etapes + ntrec; /* headers + trailer blks */
731 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
732 tapesize, fetapes);
733 }
734
735 #ifdef USE_QFA
736 if (tapepos) {
737 msg("writing QFA positions to %s\n", gTapeposfile);
738 if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT)) < 0)
739 quit("can't open tapeposfile\n");
740 /* print QFA-file header */
741 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
742 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
743 quit("can't write tapeposfile\n");
744 sprintf(gTps, "ino\ttapeno\ttapepos\n");
745 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
746 quit("can't write tapeposfile\n");
747 }
748 #endif /* USE_QFA */
749
750 /*
751 * Allocate tape buffer.
752 */
753 if (!alloctape())
754 quit(
755 "can't allocate tape buffers - try a smaller blocking factor.\n");
756
757 startnewtape(1);
758 tstart_writing = time(NULL);
759 dumpmap(usedinomap, TS_CLRI, maxino - 1);
760
761 msg("dumping (Pass III) [directories]\n");
762 dirty = 0; /* XXX just to get gcc to shut up */
763 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
764 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
765 dirty = *map++;
766 else
767 dirty >>= 1;
768 if ((dirty & 1) == 0)
769 continue;
770 /*
771 * Skip directory inodes deleted and maybe reallocated
772 */
773 dp = getino(ino);
774 if ((dp->di_mode & IFMT) != IFDIR)
775 continue;
776 #ifdef __linux__
777 /*
778 * Skip directory inodes deleted and not yes reallocated...
779 */
780 if (dp->di_nlink == 0 || dp->di_dtime != 0)
781 continue;
782 (void)dumpdirino(dp, ino);
783 #else
784 (void)dumpino(dp, ino);
785 #endif
786 }
787
788 msg("dumping (Pass IV) [regular files]\n");
789 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
790 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
791 dirty = *map++;
792 else
793 dirty >>= 1;
794 if ((dirty & 1) == 0)
795 continue;
796 /*
797 * Skip inodes deleted and reallocated as directories.
798 */
799 dp = getino(ino);
800 if ((dp->di_mode & IFMT) == IFDIR)
801 continue;
802 #ifdef __linux__
803 /*
804 * No need to check here for deleted and not yet reallocated
805 * inodes since this is done in dumpino().
806 */
807 #endif
808 (void)dumpino(dp, ino);
809 }
810
811 tend_writing = time(NULL);
812 spcl.c_type = TS_END;
813 /*
814 * Finish off the current tape record with trailer blocks, to ensure
815 * at least the data in the last partial record makes it to tape.
816 * Also make sure we write at least 1 trailer block.
817 */
818 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
819 writeheader(maxino - 1);
820
821 tnow = trewind();
822
823 if (pipeout)
824 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
825 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
826 else
827 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
828 spcl.c_tapea,
829 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
830 spcl.c_volume);
831
832 /* report dump performance, avoid division by zero */
833 if (tend_writing - tstart_writing == 0)
834 msg("finished in less than a second\n");
835 else
836 msg("finished in %d seconds, throughput %d kBytes/sec\n",
837 tend_writing - tstart_writing,
838 spcl.c_tapea / (tend_writing - tstart_writing));
839
840 putdumptime();
841 msg("Date of this level %c dump: %s", level,
842 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
843 msg("Date this dump completed: %s", ctime(&tnow));
844
845 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
846 if (compressed) {
847 long tapekb = bytes_written / 1024;
848 double rate = .0005 + (double) spcl.c_tapea / tapekb;
849 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
850 spcl.c_tapea, tapekb, rate);
851 }
852
853 broadcast("DUMP IS DONE!\7\7\n");
854 msg("DUMP IS DONE\n");
855 Exit(X_FINOK);
856 /* NOTREACHED */
857 return 0; /* gcc - shut up */
858 }
859
860 static void
861 usage(void)
862 {
863 char white[MAXPATHLEN];
864 const char *ext2ver, *ext2date;
865
866 memset(white, ' ', MAXPATHLEN);
867 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
868
869 #ifdef __linux__
870 ext2fs_get_library_version(&ext2ver, &ext2date);
871 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
872 __progname, _DUMP_VERSION, ext2ver, ext2date);
873 #else
874 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
875 #endif
876 fprintf(stderr,
877 "usage:\t%s [-0123456789ac"
878 #ifdef KERBEROS
879 "k"
880 #endif
881 "MnSu"
882 "] [-B records] [-b blocksize] [-d density]\n"
883 "\t%s [-e inode#] [-f file] [-h level] "
884 #ifdef USE_QFA
885 "[-Q file] "
886 #endif
887 "[-s feet]\n"
888 "\t%s [-T date] "
889 #ifdef HAVE_ZLIB
890 "[-z zlevel] "
891 #endif
892 "filesystem\n"
893 "\t%s [-W | -w]\n",
894 __progname, white, white, __progname);
895 exit(X_STARTUP);
896 }
897
898 /*
899 * Pick up a numeric argument. It must be nonnegative and in the given
900 * range (except that a vmax of 0 means unlimited).
901 */
902 static long
903 numarg(const char *meaning, long vmin, long vmax)
904 {
905 char *p;
906 long val;
907
908 val = strtol(optarg, &p, 10);
909 if (*p)
910 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
911 if (val < vmin || (vmax && val > vmax))
912 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
913 return (val);
914 }
915
916 void
917 sig(int signo)
918 {
919 switch(signo) {
920 case SIGALRM:
921 case SIGBUS:
922 case SIGFPE:
923 case SIGHUP:
924 case SIGTERM:
925 case SIGTRAP:
926 if (pipeout)
927 quit("Signal on pipe: cannot recover\n");
928 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
929 (void)fflush(stderr);
930 (void)fflush(stdout);
931 close_rewind();
932 exit(X_REWRITE);
933 /* NOTREACHED */
934 case SIGSEGV:
935 msg("SIGSEGV: ABORTING!\n");
936 (void)signal(SIGSEGV, SIG_DFL);
937 (void)kill(0, SIGSEGV);
938 /* NOTREACHED */
939 }
940 }
941
942 const char *
943 rawname(const char *cp)
944 {
945 #ifdef __linux__
946 return cp;
947 #else /* __linux__ */
948 static char rawbuf[MAXPATHLEN];
949 char *dp = strrchr(cp, '/');
950
951 if (dp == NULL)
952 return (NULL);
953 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
954 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
955 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
956 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
957 return (rawbuf);
958 #endif /* __linux__ */
959 }
960
961 /*
962 * obsolete --
963 * Change set of key letters and ordered arguments into something
964 * getopt(3) will like.
965 */
966 static void
967 obsolete(int *argcp, char **argvp[])
968 {
969 int argc, flags;
970 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
971
972 /* Setup. */
973 argv = *argvp;
974 argc = *argcp;
975
976 /* Return if no arguments or first argument has leading dash. */
977 ap = argv[1];
978 if (argc == 1 || *ap == '-')
979 return;
980
981 /* Allocate space for new arguments. */
982 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
983 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
984 err(X_STARTUP, "malloc new args");
985
986 *nargv++ = *argv;
987 argv += 2;
988
989 for (flags = 0; *ap; ++ap) {
990 switch (*ap) {
991 case 'B':
992 case 'b':
993 case 'd':
994 case 'e':
995 case 'f':
996 case 'F':
997 case 'h':
998 case 'L':
999 case 'Q':
1000 case 's':
1001 case 'T':
1002 if (*argv == NULL) {
1003 warnx("option requires an argument -- %c", *ap);
1004 usage();
1005 }
1006 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1007 err(X_STARTUP, "malloc arg");
1008 nargv[0][0] = '-';
1009 nargv[0][1] = *ap;
1010 (void)strcpy(&nargv[0][2], *argv);
1011 ++argv;
1012 ++nargv;
1013 break;
1014 default:
1015 if (!flags) {
1016 *p++ = '-';
1017 flags = 1;
1018 }
1019 *p++ = *ap;
1020 break;
1021 }
1022 }
1023
1024 /* Terminate flags. */
1025 if (flags) {
1026 *p = '\0';
1027 *nargv++ = flagsp;
1028 }
1029
1030 /* Copy remaining arguments. */
1031 while ((*nargv++ = *argv++));
1032
1033 /* Update argument count. */
1034 *argcp = nargv - *argvp - 1;
1035 }
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