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Regenerate configure.
[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 <stelian@popies.net>, 1999-2000
6 * Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
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. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #ifndef lint
39 static const char rcsid[] =
40 "$Id: main.c,v 1.99 2011/06/10 13:41:41 stelian Exp $";
41 #endif /* not lint */
42
43 #include <config.h>
44 #include <compatlfs.h>
45 #include <ctype.h>
46 #include <compaterr.h>
47 #include <fcntl.h>
48 #include <fstab.h>
49 #include <signal.h>
50 #include <stdio.h>
51 #include <stdlib.h>
52 #include <string.h>
53 #include <unistd.h>
54 #include <errno.h>
55 #include <mntent.h>
56
57 #include <sys/param.h>
58 #include <sys/time.h>
59 #include <time.h>
60 #ifdef __linux__
61 #include <linux/types.h>
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 <sys/stat.h>
69 #include <bsdcompat.h>
70 #include <linux/fs.h> /* for definition of BLKFLSBUF */
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 #include "transformation.h"
88 #include "indexer.h"
89
90 #ifndef SBOFF
91 #define SBOFF (SBLOCK * DEV_BSIZE)
92 #endif
93
94 int abortifconnerr = 1; /* set to 1 if lib dumprmt.o should exit on connection errors
95 otherwise just print a message using msg */
96 /*
97 * Dump maps used to describe what is to be dumped.
98 */
99 int mapsize; /* size of the state maps */
100 char *usedinomap; /* map of allocated inodes */
101 char *dumpdirmap; /* map of directories to be dumped */
102 char *dumpinomap; /* map of files to be dumped */
103 char *metainomap; /* which of the inodes in dumpinomap will get
104 only their metadata dumped */
105
106 const char *disk; /* name of the disk file */
107 char tape[MAXPATHLEN];/* name of the tape file */
108 char *tapeprefix; /* prefix of the tape file */
109 char *dumpdates; /* name of the file containing dump date information*/
110 char lastlevel[NUM_STR_SIZE];/* dump level of previous dump */
111 char level[NUM_STR_SIZE];/* dump level of this dump */
112 int zipflag; /* which compression method */
113 int Afile = -1; /* archive file descriptor */
114 int AfileActive = 1;/* Afile flag */
115 int uflag; /* update flag */
116 int mflag; /* dump metadata only if possible */
117 int Mflag; /* multi-volume flag */
118 int qflag; /* quit on errors flag */
119 int vflag; /* verbose flag */
120 int breademax = 32; /* maximum number of bread errors before we quit */
121 char *eot_script; /* end of volume script fiag */
122 int diskfd; /* disk file descriptor */
123 int tapefd; /* tape file descriptor */
124 int pipeout; /* true => output to standard output */
125 int fifoout; /* true => output to fifo */
126 dump_ino_t curino; /* current inumber; used globally */
127 int newtape; /* new tape flag */
128 int density; /* density in 0.1" units */
129 long long tapesize; /* estimated tape size, blocks */
130 long tsize; /* tape size in 0.1" units */
131 long asize; /* number of 0.1" units written on current tape */
132 int etapes; /* estimated number of tapes */
133 int nonodump; /* if set, do not honor UF_NODUMP user flags */
134 int unlimited; /* if set, write to end of medium */
135 int compressed; /* if set, dump is to be compressed */
136 long long bytes_written;/* total bytes written to tape */
137 long uncomprblks; /* uncompressed blocks written to tape */
138 int notify; /* notify operator flag */
139 int blockswritten; /* number of blocks written on current tape */
140 int tapeno; /* current tape number */
141 time_t tstart_writing; /* when started writing the first tape block */
142 time_t tend_writing; /* after writing the last tape block */
143 #ifdef __linux__
144 ext2_filsys fs;
145 #else
146 struct fs *sblock; /* the file system super block */
147 char sblock_buf[MAXBSIZE];
148 #endif
149 long xferrate; /* averaged transfer rate of all volumes */
150 long dev_bsize; /* block size of underlying disk device */
151 int dev_bshift; /* log2(dev_bsize) */
152 int tp_bshift; /* log2(TP_BSIZE) */
153 dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
154
155 struct dumptime *dthead; /* head of the list version */
156 int nddates; /* number of records (might be zero) */
157 int ddates_in; /* we have read the increment file */
158 struct dumpdates **ddatev; /* the arrayfied version */
159
160 int notify = 0; /* notify operator flag */
161 int blockswritten = 0; /* number of blocks written on current tape */
162 int tapeno = 0; /* current tape number */
163 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
164 int ntrec = NTREC; /* # blocks in each tape record */
165 int cartridge = 0; /* Assume non-cartridge tape */
166 #ifdef USE_QFA
167 int tapepos = 0; /* assume no QFA tapeposition needed by user */
168 #endif /* USE_QFA */
169 int dokerberos = 0; /* Use Kerberos authentication */
170 long dev_bsize = 1; /* recalculated below */
171 long *blocksperfiles = NULL; /* output blocks per file(s) */
172 char *host = NULL; /* remote host (if any) */
173 int sizest = 0; /* return size estimate only */
174 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
175 long long bytes_written = 0; /* total bytes written */
176 long uncomprblks = 0;/* uncompressed blocks written */
177 Transformation *transformation = &transformation_null;
178
179 long smtc_errno;
180
181 #ifdef __linux__
182 char *__progname;
183 #endif
184
185 int maxbsize = 1024*1024; /* XXX MAXBSIZE from sys/param.h */
186 static long numarg __P((const char *, long, long));
187 static long *numlistarg __P((const char *, long, long));
188 static void obsolete __P((int *, char **[]));
189 static void usage __P((void));
190 static void do_exclude_from_file __P((char *));
191 static void do_exclude_ino_str __P((char *));
192 static void incompat_flags __P((int, char, char));
193
194 static char* iexclude_bitmap = NULL; /* the inode exclude bitmap */
195 static unsigned int iexclude_bitmap_bytes = 0; /* size of bitmap in bytes */
196
197 Indexer *indexer = &indexer_legacy;
198
199 int
200 main(int argc, char *argv[])
201 {
202 dump_ino_t ino;
203 int dirty;
204 struct dinode *dp;
205 struct mntent *dt;
206 char *map;
207 int ch, pch = 0;
208 int i, anydirskipped;
209 int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
210 dump_ino_t maxino;
211 struct STAT statbuf;
212 dev_t filedev = 0;
213 #ifdef __linux__
214 errcode_t retval;
215 char directory[MAXPATHLEN];
216 char pathname[MAXPATHLEN];
217 #endif
218 time_t tnow;
219 char *diskparam;
220 char *Apath = NULL;
221
222 spcl.c_label[0] = '\0';
223 spcl.c_date = time(NULL);
224
225 #ifdef __linux__
226 __progname = argv[0];
227 directory[0] = 0;
228 initialize_ext2_error_table();
229 #endif
230
231 tsize = 0; /* Default later, based on 'c' option for cart tapes */
232 unlimited = 1;
233 eot_script = NULL;
234 if ((tapeprefix = getenv("TAPE")) == NULL)
235 tapeprefix = _PATH_DEFTAPE;
236 dumpdates = _PATH_DUMPDATES;
237 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
238 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
239 memset(&lastlevel, 0, NUM_STR_SIZE);
240 memset(&level, 0, NUM_STR_SIZE);
241 transformation = &transformation_null;
242 /* Default dump level is zero. */
243 level[0] = '0';
244
245 if (argc < 2)
246 usage();
247
248 obsolete(&argc, &argv);
249
250 while ((ch = getopt(argc, argv,
251 "0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
252 #ifdef HAVE_BZLIB
253 "j::"
254 #endif
255 "L:"
256 #ifdef KERBEROS
257 "k"
258 #endif
259 "mMnq"
260 #ifdef USE_QFA
261 "Q:"
262 #endif
263 "s:ST:uvWw"
264 #ifdef HAVE_LZO
265 "y"
266 #endif
267 #ifdef HAVE_ZLIB
268 "z::"
269 #endif
270 )) != -1)
271 switch (ch) {
272 /* dump level */
273 case '0': case '1': case '2': case '3': case '4':
274 case '5': case '6': case '7': case '8': case '9':
275 if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
276 level[strlen(level)] = ch;
277 else
278 level[0] = ch;
279 pch = ch;
280 break;
281
282 case 'A': /* archive file */
283 Apath = optarg;
284 break;
285
286 case 'a': /* `auto-size', Write to EOM. */
287 unlimited = 1;
288 aflag = 1;
289 break;
290
291 case 'B': /* blocks per output file */
292 unlimited = 0;
293 blocksperfiles = numlistarg("number of blocks per file",
294 1L, 0L);
295 break;
296
297 case 'b': /* blocks per tape write */
298 ntrec = numarg("number of blocks per write",
299 1L, 1048576L);
300 if (ntrec > maxbsize/1024) {
301 msg("Please choose a blocksize <= %dkB\n",
302 maxbsize/1024);
303 msg("The ENTIRE dump is aborted.\n");
304 exit(X_STARTUP);
305 }
306 bflag = 1;
307 break;
308
309 case 'c': /* Tape is cart. not 9-track */
310 unlimited = 0;
311 cartridge = 1;
312 break;
313
314 case 'd': /* density, in bits per inch */
315 unlimited = 0;
316 density = numarg("density", 10L, 327670L) / 10;
317 if (density >= 625 && !bflag)
318 ntrec = HIGHDENSITYTREC;
319 break;
320
321 case 'D': /* path of dumpdates file */
322 dumpdates = optarg;
323 break;
324
325 /* 04-Feb-00 ILC */
326 case 'e': /* exclude an inode */
327 {
328 char *p = optarg, *q;
329 while ((q = strchr(p, ','))) {
330 *q = '\0';
331 do_exclude_ino_str(p);
332 p = q + 1;
333 }
334 do_exclude_ino_str(p);
335 }
336 break;
337
338 case 'E': /* exclude inodes read from file */
339 do_exclude_from_file(optarg);
340 break;
341
342 case 'f': /* output file */
343 tapeprefix = optarg;
344 break;
345
346 case 'F': /* end of tape script */
347 eot_script = optarg;
348 break;
349
350 case 'h':
351 honorlevel = numarg("honor level", 0L, 10L);
352 break;
353
354 #ifdef HAVE_BZLIB
355 case 'j':
356 compressed = 2;
357 zipflag = COMPRESS_BZLIB;
358 transformation = transformation_bzlib_factory(1, 2);
359 if (optarg)
360 compressed = numarg("compress level", 1L, 9L);
361 break;
362 #endif /* HAVE_BZLIB */
363
364 case 'I':
365 breademax =
366 numarg ("number of errors to ignore", 0L, 0L);
367 break;
368
369 #ifdef KERBEROS
370 case 'k':
371 dokerberos = 1;
372 break;
373 #endif
374
375 case 'L':
376 /*
377 * Note that although there are LBLSIZE characters,
378 * the last must be '\0', so the limit on strlen()
379 * is really LBLSIZE-1.
380 */
381 strncpy(spcl.c_label, optarg, LBLSIZE);
382 spcl.c_label[LBLSIZE-1] = '\0';
383 if (strlen(optarg) > LBLSIZE-1) {
384 msg(
385 "WARNING Label `%s' is larger than limit of %d characters.\n",
386 optarg, LBLSIZE-1);
387 msg("WARNING: Using truncated label `%s'.\n",
388 spcl.c_label);
389 }
390 break;
391
392 case 'm': /* metadata only flag */
393 mflag = 1;
394 break;
395
396 case 'M': /* multi-volume flag */
397 Mflag = 1;
398 break;
399
400 case 'n': /* notify operators */
401 notify = 1;
402 break;
403
404 case 'q':
405 qflag = 1;
406 break;
407
408 #ifdef USE_QFA
409 case 'Q': /* create tapeposfile */
410 //gTapeposfile = optarg; // FIXME - communicate filename to indexer.
411 tapepos = 1;
412 break;
413 #endif /* USE_QFA */
414
415 case 's': /* tape size, feet */
416 unlimited = 0;
417 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
418 break;
419
420 case 'S':
421 sizest = 1; /* return size estimate only */
422 break;
423
424 case 'T': /* time of last dump */
425 spcl.c_ddate = unctime(optarg);
426 if (spcl.c_ddate < 0) {
427 msg("bad time \"%s\"\n", optarg);
428 msg("The ENTIRE dump is aborted.\n");
429 exit(X_STARTUP);
430 }
431 Tflag = 1;
432 lastlevel[0] = '?'; lastlevel[1] = '\0';
433 break;
434
435 case 'u': /* update dumpdates */
436 uflag = 1;
437 break;
438
439 case 'v': /* verbose */
440 vflag = 1;
441 break;
442
443 case 'W': /* what to do */
444 case 'w':
445 lastdump(ch);
446 exit(X_FINOK); /* do nothing else */
447 #ifdef HAVE_LZO
448 case 'y':
449 compressed = 2;
450 transformation = transformation_lzo_factory(1);
451 zipflag = COMPRESS_LZO;
452 break;
453 #endif /* HAVE_LZO */
454
455 #ifdef HAVE_ZLIB
456 case 'z':
457 compressed = 2;
458 transformation = transformation_zlib_factory(1, 2);
459 zipflag = COMPRESS_ZLIB;
460 if (optarg)
461 compressed = numarg("compress level", 1L, 9L);
462 break;
463 #endif /* HAVE_ZLIB */
464
465 default:
466 usage();
467 }
468 argc -= optind;
469 argv += optind;
470
471 if (argc < 1) {
472 msg("Must specify disk or filesystem\n");
473 msg("The ENTIRE dump is aborted.\n");
474 exit(X_STARTUP);
475 }
476 diskparam = *argv++;
477 if (strlen(diskparam) >= MAXPATHLEN) {
478 msg("Disk or filesystem name too long: %s\n", diskparam);
479 msg("The ENTIRE dump is aborted.\n");
480 exit(X_STARTUP);
481 }
482 argc--;
483 incompat_flags(Tflag && uflag, 'T', 'u');
484 incompat_flags(aflag && blocksperfiles, 'a', 'B');
485 incompat_flags(aflag && cartridge, 'a', 'c');
486 incompat_flags(aflag && density, 'a', 'd');
487 incompat_flags(aflag && tsize, 'a', 's');
488
489 if (strcmp(tapeprefix, "-") == 0) {
490 pipeout++;
491 tapeprefix = "standard output";
492 }
493
494 if (blocksperfiles && !compressed)
495 for (i = 1; i <= *blocksperfiles; i++)
496 blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
497 else if (!unlimited) {
498 /*
499 * Determine how to default tape size and density
500 *
501 * density tape size
502 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
503 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
504 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
505 * (450*4 - slop)
506 * hilit19 hits again: "
507 */
508 if (density == 0)
509 density = cartridge ? 100 : 160;
510 if (tsize == 0)
511 tsize = cartridge ? 1700L*120L : 2300L*120L;
512 }
513
514 {
515 int i;
516 char *n;
517
518 if ((n = strchr(tapeprefix, ':'))) {
519 for (i = 0; i < (n - tapeprefix); i++) {
520 if (tapeprefix[i] == '/')
521 break;
522 }
523 if (tapeprefix[i] != '/') {
524 host = tapeprefix;
525 tapeprefix = strchr(host, ':');
526 *tapeprefix++ = '\0';
527 #ifdef RDUMP
528 if (index(tapeprefix, '\n')) {
529 msg("invalid characters in tape\n");
530 msg("The ENTIRE dump is aborted.\n");
531 exit(X_STARTUP);
532 }
533 if (rmthost(host) == 0)
534 exit(X_STARTUP);
535 #else
536 msg("remote dump not enabled\n");
537 msg("The ENTIRE dump is aborted.\n");
538 exit(X_STARTUP);
539 #endif
540 }
541 }
542 }
543
544 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
545 if (Apath && (Afile = OPEN(Apath, O_WRONLY|O_CREAT|O_TRUNC,
546 S_IRUSR | S_IWUSR | S_IRGRP |
547 S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
548 msg("Cannot open %s for writing: %s\n",
549 optarg, strerror(errno));
550 msg("The ENTIRE dump is aborted.\n");
551 exit(X_STARTUP);
552 }
553
554 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
555 signal(SIGHUP, sig);
556 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
557 signal(SIGTRAP, sig);
558 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
559 signal(SIGFPE, sig);
560 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
561 signal(SIGBUS, sig);
562 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
563 signal(SIGSEGV, sig);
564 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
565 signal(SIGTERM, sig);
566 if (signal(SIGINT, interrupt) == SIG_IGN)
567 signal(SIGINT, SIG_IGN);
568 #ifdef SIGXCPU
569 signal(SIGXCPU, SIG_IGN);
570 #endif /* SIGXCPU */
571 #ifdef SIGXFSZ
572 signal(SIGXFSZ, SIG_IGN);
573 #endif /* SIGXFSZ */
574
575 set_operators(); /* /etc/group snarfed */
576 getfstab(); /* /etc/fstab snarfed */
577
578 /*
579 * disk may end in / and this can confuse
580 * fstabsearch.
581 */
582 i = strlen(diskparam) - 1;
583 if (i > 1 && diskparam[i] == '/')
584 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
585 diskparam[i] = '\0';
586
587 disk = get_device_name(diskparam);
588 if (!disk)
589 disk = strdup(diskparam);
590
591 /*
592 * disk can be either the full special file name,
593 * the suffix of the special file name,
594 * the special name missing the leading '/',
595 * the file system name with or without the leading '/'.
596 */
597 if ((dt = fstabsearch(disk)) != NULL) {
598 /* if found then only one parameter (i.e. partition)
599 * is allowed */
600 if (argc >= 1) {
601 (void)fprintf(stderr, "Unknown arguments to dump:");
602 while (argc--)
603 (void)fprintf(stderr, " %s", *argv++);
604 (void)fprintf(stderr, "\n");
605 msg("The ENTIRE dump is aborted.\n");
606 exit(X_STARTUP);
607 }
608 disk = rawname(dt->mnt_fsname);
609 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
610 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
611 } else {
612 #ifdef __linux__
613 #ifdef HAVE_REALPATH
614 if (realpath(disk, pathname) == NULL)
615 #endif
616 strcpy(pathname, disk);
617 /*
618 * The argument could be now a mountpoint of
619 * a filesystem specified in fstab. Search for it.
620 */
621 if ((dt = fstabsearch(pathname)) != NULL) {
622 disk = rawname(dt->mnt_fsname);
623 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
624 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
625 } else {
626 /*
627 * The argument was not found in the fstab
628 * assume that this is a subtree and search for it
629 */
630 dt = fstabsearchdir(pathname, directory);
631 if (dt != NULL) {
632 char name[MAXPATHLEN];
633 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
634 (void)snprintf(name, sizeof(name), "%s (dir %s)",
635 dt->mnt_dir, directory);
636 (void)strncpy(spcl.c_filesys, name, NAMELEN);
637 disk = rawname(dt->mnt_fsname);
638 } else {
639 (void)strncpy(spcl.c_dev, disk, NAMELEN);
640 (void)strncpy(spcl.c_filesys, "an unlisted file system",
641 NAMELEN);
642 }
643 }
644 #else
645 (void)strncpy(spcl.c_dev, disk, NAMELEN);
646 (void)strncpy(spcl.c_filesys, "an unlisted file system",
647 NAMELEN);
648 #endif
649 }
650
651 if (directory[0] != 0) {
652 if (atoi(level) != 0) {
653 msg("Only level 0 dumps are allowed on a subdirectory\n");
654 msg("The ENTIRE dump is aborted.\n");
655 exit(X_STARTUP);
656 }
657 if (uflag) {
658 msg("You can't update the dumpdates file when dumping a subdirectory\n");
659 msg("The ENTIRE dump is aborted.\n");
660 exit(X_STARTUP);
661 }
662 }
663 spcl.c_dev[NAMELEN-1] = '\0';
664 spcl.c_filesys[NAMELEN-1] = '\0';
665 (void)gethostname(spcl.c_host, NAMELEN);
666 spcl.c_host[NAMELEN-1] = '\0';
667 spcl.c_level = atoi(level);
668 spcl.c_type = TS_TAPE;
669 if (!Tflag)
670 getdumptime(uflag); /* dumpdates snarfed */
671
672 if (spcl.c_ddate == 0 && spcl.c_level) {
673 msg("WARNING: There is no inferior level dump on this filesystem\n");
674 msg("WARNING: Assuming a level 0 dump by default\n");
675 level[0] = '0'; level[1] = '\0';
676 spcl.c_level = 0;
677 }
678
679 if (Mflag)
680 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
681 else
682 strncpy(tape, tapeprefix, MAXPATHLEN);
683 tape[MAXPATHLEN - 1] = '\0';
684
685 if (!pipeout) {
686 if (STAT(tape, &statbuf) != -1)
687 fifoout= statbuf.st_mode & S_IFIFO;
688 }
689
690 if (!sizest) {
691
692 msg("Date of this level %s dump: %s", level,
693 ctime4(&spcl.c_date));
694 if (spcl.c_ddate)
695 msg("Date of last level %s dump: %s", lastlevel,
696 ctime4(&spcl.c_ddate));
697 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
698 if (host)
699 msgtail("to %s on host %s\n", tape, host);
700 else
701 msgtail("to %s\n", tape);
702 } /* end of size estimate */
703
704 #ifdef __linux__
705 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
706 msg("Cannot open %s\n", disk);
707 msg("The ENTIRE dump is aborted.\n");
708 exit(X_STARTUP);
709 }
710 #ifdef BLKFLSBUF
711 (void)ioctl(diskfd, BLKFLSBUF, 0);
712 #endif
713 retval = dump_fs_open(disk, &fs);
714 if (retval) {
715 com_err(disk, retval, "while opening filesystem");
716 if (retval == EXT2_ET_REV_TOO_HIGH)
717 msg("Get a newer version of dump!\n");
718 msg("The ENTIRE dump is aborted.\n");
719 exit(X_STARTUP);
720 }
721 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
722 com_err(disk, retval, "while opening filesystem");
723 msg("Get a newer version of dump!\n");
724 msg("The ENTIRE dump is aborted.\n");
725 exit(X_STARTUP);
726 }
727 /* if no user label specified, use ext2 filesystem label if available */
728 if (spcl.c_label[0] == '\0') {
729 const char *lbl;
730 if ( (lbl = get_device_label(disk)) != NULL) {
731 strncpy(spcl.c_label, lbl, LBLSIZE);
732 spcl.c_label[LBLSIZE-1] = '\0';
733 }
734 else
735 strcpy(spcl.c_label, "none"); /* safe strcpy. */
736 }
737 sync();
738 dev_bsize = DEV_BSIZE;
739 dev_bshift = ffs(dev_bsize) - 1;
740 if (dev_bsize != (1 << dev_bshift))
741 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
742 tp_bshift = ffs(TP_BSIZE) - 1;
743 if (TP_BSIZE != (1 << tp_bshift))
744 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
745 maxino = fs->super->s_inodes_count + 1;
746 spcl.c_flags |= DR_NEWINODEFMT;
747 #else /* __linux __*/
748 if ((diskfd = open(disk, O_RDONLY)) < 0) {
749 msg("Cannot open %s\n", disk);
750 msg("The ENTIRE dump is aborted.\n");
751 exit(X_STARTUP);
752 }
753 sync();
754 sblock = (struct fs *)sblock_buf;
755 bread(SBOFF, (char *) sblock, SBSIZE);
756 if (sblock->fs_magic != FS_MAGIC)
757 quit("bad sblock magic number\n");
758 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
759 dev_bshift = ffs(dev_bsize) - 1;
760 if (dev_bsize != (1 << dev_bshift))
761 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
762 tp_bshift = ffs(TP_BSIZE) - 1;
763 if (TP_BSIZE != (1 << tp_bshift))
764 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
765 #ifdef FS_44INODEFMT
766 if (sblock->fs_inodefmt >= FS_44INODEFMT)
767 spcl.c_flags |= DR_NEWINODEFMT;
768 #endif
769 maxino = sblock->fs_ipg * sblock->fs_ncg;
770 #endif /* __linux__ */
771 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
772 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
773 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
774 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
775 metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
776 if (usedinomap == NULL || dumpdirmap == NULL ||
777 dumpinomap == NULL || metainomap == NULL)
778 quit("out of memory allocating inode maps\n");
779 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
780
781 nonodump = spcl.c_level < honorlevel;
782
783 if (!sizest) {
784 msg("Label: %s\n", spcl.c_label);
785
786 msg("Writing %d Kilobyte records\n", ntrec);
787
788 if (compressed) {
789 if (zipflag == COMPRESS_LZO)
790 msg("Compressing output (lzo)\n");
791 else
792 msg("Compressing output at transformation level %d (%s)\n",
793 compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
794 }
795 }
796
797 #if defined(SIGINFO)
798 (void)signal(SIGINFO, statussig);
799 #endif
800
801 if (!sizest)
802 msg("mapping (Pass I) [regular files]\n");
803 #ifdef __linux__
804 if (directory[0] == 0)
805 anydirskipped = mapfiles(maxino, &tapesize);
806 else {
807 if (LSTAT(pathname, &statbuf) == -1) {
808 msg("File cannot be accessed (%s).\n", pathname);
809 msg("The ENTIRE dump is aborted.\n");
810 exit(X_STARTUP);
811 }
812 filedev = statbuf.st_dev;
813 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
814 anydirskipped = maponefile(maxino, &tapesize,
815 directory);
816 else
817 anydirskipped = mapfilesfromdir(maxino, &tapesize,
818 directory);
819 }
820 while (argc--) {
821 int anydirskipped2;
822 char *p = *argv;
823 /* check if file is available */
824 if (LSTAT(p, &statbuf) == -1) {
825 msg("File cannot be accessed (%s).\n", p);
826 msg("The ENTIRE dump is aborted.\n");
827 exit(X_STARTUP);
828 }
829 /* check if file is on same unix partiton as the first
830 * argument */
831 if (statbuf.st_dev != filedev) {
832 msg("Files are not on same file system (%s).\n", p);
833 msg("The ENTIRE dump is aborted.\n");
834 exit(X_STARTUP);
835 }
836 /* check if file is a directory */
837 if (!(statbuf.st_mode & S_IFDIR))
838 anydirskipped2 = maponefile(maxino, &tapesize,
839 p+strlen(dt->mnt_dir));
840 else
841 /* read directory inodes.
842 * NOTE: nested directories are not recognized
843 * so inodes may be umped twice!
844 */
845 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
846 p+strlen(dt->mnt_dir));
847 if (!anydirskipped)
848 anydirskipped = anydirskipped2;
849 argv++;
850 }
851 #else
852 anydirskipped = mapfiles(maxino, &tapesize);
853 #endif
854
855 if (!sizest)
856 msg("mapping (Pass II) [directories]\n");
857 while (anydirskipped) {
858 anydirskipped = mapdirs(maxino, &tapesize);
859 }
860
861 if (sizest) {
862 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
863 exit(X_FINOK);
864 } /* stop here for size estimate */
865
866 if (pipeout || unlimited) {
867 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
868 msg("estimated %lld blocks.\n", tapesize);
869 } else {
870 double fetapes;
871
872 if (blocksperfiles) {
873 long long tapesize_left;
874
875 tapesize_left = tapesize;
876 fetapes = 0;
877 for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
878 fetapes++;
879 if (tapesize_left > blocksperfiles[i])
880 tapesize_left -= blocksperfiles[i];
881 else
882 tapesize_left = 0;
883 }
884 if (tapesize_left)
885 fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
886 } else if (cartridge) {
887 /* Estimate number of tapes, assuming streaming stops at
888 the end of each block written, and not in mid-block.
889 Assume no erroneous blocks; this can be compensated
890 for with an artificially low tape size. */
891 fetapes =
892 ( (double) tapesize /* blocks */
893 * TP_BSIZE /* bytes/block */
894 * (1.0/density) /* 0.1" / byte " */
895 +
896 (double) tapesize /* blocks */
897 * (1.0/ntrec) /* streaming-stops per block */
898 * 15.48 /* 0.1" / streaming-stop " */
899 ) * (1.0 / tsize ); /* tape / 0.1" " */
900 } else {
901 /* Estimate number of tapes, for old fashioned 9-track
902 tape */
903 int tenthsperirg = (density == 625) ? 3 : 7;
904 fetapes =
905 ( (double) tapesize /* blocks */
906 * TP_BSIZE /* bytes / block */
907 * (1.0/density) /* 0.1" / byte " */
908 +
909 (double) tapesize /* blocks */
910 * (1.0/ntrec) /* IRG's / block */
911 * tenthsperirg /* 0.1" / IRG " */
912 ) * (1.0 / tsize ); /* tape / 0.1" " */
913 }
914 etapes = fetapes; /* truncating assignment */
915 etapes++;
916 /* count the dumped inodes map on each additional tape */
917 tapesize += (etapes - 1) *
918 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
919 tapesize += etapes + ntrec; /* headers + trailer blks */
920 msg("estimated %lld blocks on %3.2f tape(s).\n",
921 tapesize, fetapes);
922 }
923
924 #ifdef USE_QFA
925 indexer->openQfa();
926 #endif /* USE_QFA */
927
928 /*
929 * Allocate tape buffer.
930 */
931 if (!alloctape())
932 quit(
933 "can't allocate tape buffers - try a smaller blocking factor.\n");
934
935 startnewtape(1);
936 tstart_writing = time(NULL);
937 dumpmap(usedinomap, TS_CLRI, maxino - 1);
938
939 msg("dumping (Pass III) [directories]\n");
940 dirty = 0; /* XXX just to get gcc to shut up */
941 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
942 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
943 dirty = *map++;
944 else
945 dirty >>= 1;
946 if ((dirty & 1) == 0)
947 continue;
948 /*
949 * Skip directory inodes deleted and maybe reallocated
950 */
951 dp = getino(ino);
952 if ((dp->di_mode & IFMT) != IFDIR)
953 continue;
954 #ifdef __linux__
955 /*
956 * Skip directory inodes deleted and not yes reallocated...
957 */
958 if (dp->di_nlink == 0 || dp->di_dtime != 0)
959 continue;
960 if (vflag)
961 msg("dumping directory inode %lu\n", ino);
962 (void)dumpdirino(dp, ino);
963 #else
964 (void)dumpino(dp, ino);
965 #endif
966 }
967
968 msg("dumping (Pass IV) [regular files]\n");
969 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
970 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
971 dirty = *map++;
972 else
973 dirty >>= 1;
974 if ((dirty & 1) == 0)
975 continue;
976 /*
977 * Skip inodes deleted and reallocated as directories.
978 */
979 dp = getino(ino);
980 if ((dp->di_mode & IFMT) == IFDIR)
981 continue;
982 #ifdef __linux__
983 /*
984 * No need to check here for deleted and not yet reallocated
985 * inodes since this is done in dumpino().
986 */
987 #endif
988 if (vflag) {
989 if (mflag && TSTINO(ino, metainomap))
990 msg("dumping regular inode %lu (meta only)\n", ino);
991 else
992 msg("dumping regular inode %lu\n", ino);
993 }
994 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
995 }
996
997 tend_writing = time(NULL);
998 spcl.c_type = TS_END;
999
1000 indexer->foo();
1001
1002 if (Afile >= 0) {
1003 volinfo[1] = ROOTINO;
1004 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1005 spcl.c_flags |= DR_INODEINFO;
1006 }
1007
1008 /*
1009 * Finish off the current tape record with trailer blocks, to ensure
1010 * at least the data in the last partial record makes it to tape.
1011 * Also make sure we write at least 1 trailer block.
1012 */
1013 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1014 writeheader(maxino - 1);
1015
1016 tnow = trewind();
1017
1018 if (pipeout || fifoout)
1019 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1020 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1021 else
1022 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1023 spcl.c_tapea,
1024 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1025 spcl.c_volume);
1026
1027 /* report dump performance, avoid division by zero */
1028 if (tend_writing - tstart_writing == 0)
1029 msg("finished in less than a second\n");
1030 else
1031 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1032 tend_writing - tstart_writing,
1033 spcl.c_tapea / (tend_writing - tstart_writing));
1034
1035 putdumptime();
1036 msg("Date of this level %s dump: %s", level,
1037 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1038 msg("Date this dump completed: %s", ctime(&tnow));
1039
1040 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1041 if (compressed) {
1042 long tapekb = bytes_written / 1024;
1043 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1044 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1045 spcl.c_tapea, tapekb, rate);
1046 }
1047
1048 indexer->close();
1049 indexer->closeQfa();
1050
1051 broadcast("DUMP IS DONE!\7\7\n");
1052 msg("DUMP IS DONE\n");
1053 Exit(X_FINOK);
1054 /* NOTREACHED */
1055 return 0; /* gcc - shut up */
1056 }
1057
1058 static void
1059 usage(void)
1060 {
1061 char white[MAXPATHLEN];
1062 const char *ext2ver, *ext2date;
1063
1064 memset(white, ' ', MAXPATHLEN);
1065 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1066
1067 #ifdef __linux__
1068 ext2fs_get_library_version(&ext2ver, &ext2date);
1069 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1070 __progname, _DUMP_VERSION, ext2ver, ext2date);
1071 #else
1072 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1073 #endif
1074 fprintf(stderr,
1075 "usage:\t%s [-level#] [-ac"
1076 #ifdef KERBEROS
1077 "k"
1078 #endif
1079 "mMnqSuv"
1080 "] [-A file] [-B records] [-b blocksize]\n"
1081 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1082 "\t%s [-f file] [-h level] [-I nr errors] "
1083 #ifdef HAVE_BZLIB
1084 "[-j zlevel] "
1085 #endif
1086 #ifdef USE_QFA
1087 "[-Q file]\n"
1088 #endif
1089 "\t%s [-s feet] "
1090 "[-T date] "
1091 #ifdef HAVE_LZO
1092 "[-y] "
1093 #endif
1094 #ifdef HAVE_ZLIB
1095 "[-z zlevel] "
1096 #endif
1097 "filesystem\n"
1098 "\t%s [-W | -w]\n",
1099 __progname, white, white, white, __progname);
1100 exit(X_STARTUP);
1101 }
1102
1103 /*
1104 * Pick up a numeric argument. It must be nonnegative and in the given
1105 * range (except that a vmax of 0 means unlimited).
1106 */
1107 static long
1108 numarg(const char *meaning, long vmin, long vmax)
1109 {
1110 char *p;
1111 long val;
1112
1113 val = strtol(optarg, &p, 10);
1114 if (*p)
1115 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1116 if (val < vmin || (vmax && val > vmax))
1117 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1118 return (val);
1119 }
1120
1121 /*
1122 * The same as numarg, just that it expects a comma separated list of numbers
1123 * and returns an array of longs with the first element containing the number
1124 * values in that array.
1125 */
1126 static long *
1127 numlistarg(const char *meaning, long vmin, long vmax)
1128 {
1129 char *p;
1130 long *vals,*curval;
1131 long valnum;
1132
1133 p = optarg;
1134 vals = NULL;
1135 valnum = 0;
1136 do {
1137 valnum++;
1138 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1139 errx(X_STARTUP, "allocating memory failed");
1140 curval = vals + valnum;
1141 *curval = strtol(p, &p, 10);
1142 if (*p && *p!=',')
1143 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1144 if (*curval < vmin || (vmax && *curval > vmax))
1145 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1146 *vals = valnum;
1147 if (*p) p++;
1148 } while(*p);
1149 return (vals);
1150 }
1151
1152 void
1153 sig(int signo)
1154 {
1155 switch(signo) {
1156 case SIGALRM:
1157 case SIGBUS:
1158 case SIGFPE:
1159 case SIGHUP:
1160 case SIGTERM:
1161 case SIGTRAP:
1162 if (pipeout || fifoout)
1163 quit("Signal on pipe: cannot recover\n");
1164 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1165 (void)fflush(stderr);
1166 (void)fflush(stdout);
1167 close_rewind();
1168 exit(X_REWRITE);
1169 /* NOTREACHED */
1170 case SIGSEGV:
1171 msg("SIGSEGV: ABORTING!\n");
1172 (void)signal(SIGSEGV, SIG_DFL);
1173 (void)kill(0, SIGSEGV);
1174 /* NOTREACHED */
1175 }
1176 }
1177
1178 const char *
1179 rawname(const char *cp)
1180 {
1181 #ifdef __linux__
1182 return cp;
1183 #else /* __linux__ */
1184 static char rawbuf[MAXPATHLEN];
1185 char *dp = strrchr(cp, '/');
1186
1187 if (dp == NULL)
1188 return (NULL);
1189 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1190 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1191 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1192 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1193 return (rawbuf);
1194 #endif /* __linux__ */
1195 }
1196
1197 /*
1198 * obsolete --
1199 * Change set of key letters and ordered arguments into something
1200 * getopt(3) will like.
1201 */
1202 static void
1203 obsolete(int *argcp, char **argvp[])
1204 {
1205 int argc, flags;
1206 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1207
1208 /* Setup. */
1209 argv = *argvp;
1210 argc = *argcp;
1211
1212 /* Return if no arguments or first argument has leading dash. */
1213 ap = argv[1];
1214 if (argc == 1 || *ap == '-')
1215 return;
1216
1217 /* Allocate space for new arguments. */
1218 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1219 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1220 err(X_STARTUP, "malloc new args");
1221
1222 *nargv++ = *argv;
1223 argv += 2;
1224
1225 for (flags = 0; *ap; ++ap) {
1226 switch (*ap) {
1227 case 'A':
1228 case 'B':
1229 case 'b':
1230 case 'd':
1231 case 'D':
1232 case 'e':
1233 case 'E':
1234 case 'f':
1235 case 'F':
1236 case 'h':
1237 case 'L':
1238 case 'Q':
1239 case 's':
1240 case 'T':
1241 if (*argv == NULL) {
1242 warnx("option requires an argument -- %c", *ap);
1243 usage();
1244 }
1245 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1246 err(X_STARTUP, "malloc arg");
1247 nargv[0][0] = '-';
1248 nargv[0][1] = *ap;
1249 (void)strcpy(&nargv[0][2], *argv);
1250 ++argv;
1251 ++nargv;
1252 break;
1253 default:
1254 if (!flags) {
1255 *p++ = '-';
1256 flags = 1;
1257 }
1258 *p++ = *ap;
1259 break;
1260 }
1261 }
1262
1263 /* Terminate flags. */
1264 if (flags) {
1265 *p = '\0';
1266 *nargv++ = flagsp;
1267 }
1268
1269 /* Copy remaining arguments. */
1270 while ((*nargv++ = *argv++));
1271
1272 /* Update argument count. */
1273 *argcp = nargv - *argvp - 1;
1274 }
1275
1276 /*
1277 * This tests whether an inode is in the exclude bitmap
1278 */
1279 int
1280 exclude_ino(dump_ino_t ino)
1281 {
1282 /* if the inode exclude bitmap exists and covers given inode */
1283 if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1284 /* then check this inode against it */
1285 int idx = iexclude_bitmap[ino / 8];
1286 if (idx & (1 << (ino % 8)))
1287 return 1;
1288 }
1289 return 0;
1290 }
1291
1292 /*
1293 * This adds an inode to the exclusion bitmap if it isn't already there
1294 */
1295 void
1296 do_exclude_ino(dump_ino_t ino, const char *reason)
1297 {
1298 if (exclude_ino(ino))
1299 return;
1300
1301 if (vflag) {
1302 if (reason)
1303 msg("Excluding inode %u (%s) from dump\n", ino, reason);
1304 else
1305 msg("Excluding inode %u from dump\n", ino);
1306 }
1307
1308 /* check for enough mem; initialize */
1309 if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1310 if (iexclude_bitmap_bytes == 0) {
1311 unsigned int j;
1312 iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1313 iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1314 if (iexclude_bitmap == NULL) {
1315 msg("allocating memory failed\n");
1316 exit(X_STARTUP);
1317 }
1318 for (j = 0; j < iexclude_bitmap_bytes; j++)
1319 iexclude_bitmap[j] = 0;
1320 }
1321 else {
1322 unsigned int oldsize = iexclude_bitmap_bytes;
1323 iexclude_bitmap_bytes *=
1324 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1325 iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1326 iexclude_bitmap_bytes);
1327 if (iexclude_bitmap == NULL) {
1328 msg("allocating memory failed\n");
1329 exit(X_STARTUP);
1330 }
1331 for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1332 iexclude_bitmap[oldsize] = 0;
1333 }
1334 }
1335
1336 iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1337 }
1338
1339 static void
1340 do_exclude_ino_str(char * ino) {
1341 char *r;
1342 unsigned long inod;
1343
1344 inod = strtoul(ino, &r, 10);
1345 if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1346 msg("Invalid inode argument %s\n", ino);
1347 msg("The ENTIRE dump is aborted.\n");
1348 exit(X_STARTUP);
1349 }
1350 do_exclude_ino(inod, NULL);
1351 }
1352
1353 /*
1354 * This reads a file containing one inode number per line and exclude them all
1355 */
1356 static void
1357 do_exclude_from_file(char *file) {
1358 FILE *f;
1359 char *p, fname[MAXPATHLEN];
1360
1361
1362 if (!( f = fopen(file, "r")) ) {
1363 msg("Cannot open file for reading: %s\n", file);
1364 msg("The ENTIRE dump is aborted.\n");
1365 exit(X_STARTUP);
1366 }
1367 while (( p = fgets(fname, MAXPATHLEN, f))) {
1368 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1369 *(p + strlen(p) - 1) = '\0';
1370 if ( !*p ) /* skip empty lines */
1371 continue;
1372 do_exclude_ino_str(p);
1373 }
1374 fclose(f);
1375 }
1376
1377 static void incompat_flags(int cond, char flag1, char flag2) {
1378 if (cond) {
1379 msg("You cannot use the %c and %c flags together.\n",
1380 flag1, flag2);
1381 msg("The ENTIRE dump is aborted.\n");
1382 exit(X_STARTUP);
1383 }
1384 }
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