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Small prototype fix.
[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 1.91 2004/01/27 10:46:55 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 #ifdef HAVE_EXT2FS_EXT2_FS_H
62 #include <ext2fs/ext2_fs.h>
63 #else
64 #include <linux/ext2_fs.h>
65 #endif
66 #include <ext2fs/ext2fs.h>
67 #include <sys/stat.h>
68 #include <bsdcompat.h>
69 #include <linux/fs.h> /* for definition of BLKFLSBUF */
70 #elif defined sunos
71 #include <sys/vnode.h>
72
73 #include <ufs/inode.h>
74 #include <ufs/fs.h>
75 #else
76 #include <ufs/ufs/dinode.h>
77 #include <ufs/ffs/fs.h>
78 #endif
79
80 #include <protocols/dumprestore.h>
81
82 #include "dump.h"
83 #include "pathnames.h"
84 #include "bylabel.h"
85
86 #ifndef SBOFF
87 #define SBOFF (SBLOCK * DEV_BSIZE)
88 #endif
89
90 int abortifconnerr = 1; /* set to 1 if lib dumprmt.o should exit on connection errors
91 otherwise just print a message using msg */
92 /*
93 * Dump maps used to describe what is to be dumped.
94 */
95 int mapsize; /* size of the state maps */
96 char *usedinomap; /* map of allocated inodes */
97 char *dumpdirmap; /* map of directories to be dumped */
98 char *dumpinomap; /* map of files to be dumped */
99 char *metainomap; /* which of the inodes in dumpinomap will get
100 only their metadata dumped */
101
102 const char *disk; /* name of the disk file */
103 char tape[MAXPATHLEN];/* name of the tape file */
104 char *tapeprefix; /* prefix of the tape file */
105 char *dumpdates; /* name of the file containing dump date information*/
106 char lastlevel; /* dump level of previous dump */
107 char level; /* dump level of this dump */
108 int zipflag; /* which compression method */
109 int Afile = -1; /* archive file descriptor */
110 int AfileActive = 1;/* Afile flag */
111 int uflag; /* update flag */
112 int mflag; /* dump metadata only if possible */
113 int Mflag; /* multi-volume flag */
114 int qflag; /* quit on errors flag */
115 int vflag; /* verbose flag */
116 int breademax = 32; /* maximum number of bread errors before we quit */
117 char *eot_script; /* end of volume script fiag */
118 int diskfd; /* disk file descriptor */
119 int tapefd; /* tape file descriptor */
120 int pipeout; /* true => output to standard output */
121 int fifoout; /* true => output to fifo */
122 dump_ino_t curino; /* current inumber; used globally */
123 int newtape; /* new tape flag */
124 int density; /* density in 0.1" units */
125 long tapesize; /* estimated tape size, blocks */
126 long tsize; /* tape size in 0.1" units */
127 long asize; /* number of 0.1" units written on current tape */
128 int etapes; /* estimated number of tapes */
129 int nonodump; /* if set, do not honor UF_NODUMP user flags */
130 int unlimited; /* if set, write to end of medium */
131 int compressed; /* if set, dump is to be compressed */
132 long long bytes_written;/* total bytes written to tape */
133 long uncomprblks; /* uncompressed blocks written to tape */
134 int notify; /* notify operator flag */
135 int blockswritten; /* number of blocks written on current tape */
136 int tapeno; /* current tape number */
137 time_t tstart_writing; /* when started writing the first tape block */
138 time_t tend_writing; /* after writing the last tape block */
139 #ifdef __linux__
140 ext2_filsys fs;
141 #else
142 struct fs *sblock; /* the file system super block */
143 char sblock_buf[MAXBSIZE];
144 #endif
145 long xferrate; /* averaged transfer rate of all volumes */
146 long dev_bsize; /* block size of underlying disk device */
147 int dev_bshift; /* log2(dev_bsize) */
148 int tp_bshift; /* log2(TP_BSIZE) */
149 dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
150
151 #ifdef USE_QFA
152 int gTapeposfd;
153 char *gTapeposfile;
154 char gTps[255];
155 int32_t gThisDumpDate;
156 #endif /* USE_QFA */
157
158 struct dumptime *dthead; /* head of the list version */
159 int nddates; /* number of records (might be zero) */
160 int ddates_in; /* we have read the increment file */
161 struct dumpdates **ddatev; /* the arrayfied version */
162
163 int notify = 0; /* notify operator flag */
164 int blockswritten = 0; /* number of blocks written on current tape */
165 int tapeno = 0; /* current tape number */
166 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
167 int ntrec = NTREC; /* # blocks in each tape record */
168 int cartridge = 0; /* Assume non-cartridge tape */
169 #ifdef USE_QFA
170 int tapepos = 0; /* assume no QFA tapeposition needed by user */
171 #endif /* USE_QFA */
172 int dokerberos = 0; /* Use Kerberos authentication */
173 long dev_bsize = 1; /* recalculated below */
174 long *blocksperfiles = NULL; /* output blocks per file(s) */
175 char *host = NULL; /* remote host (if any) */
176 int sizest = 0; /* return size estimate only */
177 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
178 long long bytes_written = 0; /* total bytes written */
179 long uncomprblks = 0;/* uncompressed blocks written */
180
181 long smtc_errno;
182
183 #ifdef __linux__
184 char *__progname;
185 #endif
186
187 int maxbsize = 1024*1024; /* XXX MAXBSIZE from sys/param.h */
188 static long numarg __P((const char *, long, long));
189 static long *numlistarg __P((const char *, long, long));
190 static void obsolete __P((int *, char **[]));
191 static void usage __P((void));
192 static void do_exclude_from_file __P((char *));
193 static void do_exclude_ino_str __P((char *));
194 static void incompat_flags __P((int, char, char));
195
196 static char* iexclude_bitmap = NULL; /* the inode exclude bitmap */
197 static unsigned int iexclude_bitmap_bytes = 0; /* size of bitmap in bytes */
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;
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 level = '0';
240
241 if (argc < 2)
242 usage();
243
244 obsolete(&argc, &argv);
245
246 #ifdef USE_QFA
247 gTapeposfd = -1;
248 #endif /* USE_QFA */
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 level = ch;
276 break;
277
278 case 'A': /* archive file */
279 Apath = optarg;
280 break;
281
282 case 'a': /* `auto-size', Write to EOM. */
283 unlimited = 1;
284 aflag = 1;
285 break;
286
287 case 'B': /* blocks per output file */
288 unlimited = 0;
289 blocksperfiles = numlistarg("number of blocks per file",
290 1L, 0L);
291 break;
292
293 case 'b': /* blocks per tape write */
294 ntrec = numarg("number of blocks per write",
295 1L, 1048576L);
296 if (ntrec > maxbsize/1024) {
297 msg("Please choose a blocksize <= %dkB\n",
298 maxbsize/1024);
299 msg("The ENTIRE dump is aborted.\n");
300 exit(X_STARTUP);
301 }
302 bflag = 1;
303 break;
304
305 case 'c': /* Tape is cart. not 9-track */
306 unlimited = 0;
307 cartridge = 1;
308 break;
309
310 case 'd': /* density, in bits per inch */
311 unlimited = 0;
312 density = numarg("density", 10L, 327670L) / 10;
313 if (density >= 625 && !bflag)
314 ntrec = HIGHDENSITYTREC;
315 break;
316
317 case 'D': /* path of dumpdates file */
318 dumpdates = optarg;
319 break;
320
321 /* 04-Feb-00 ILC */
322 case 'e': /* exclude an inode */
323 {
324 char *p = optarg, *q;
325 while ((q = strchr(p, ','))) {
326 *q = '\0';
327 do_exclude_ino_str(p);
328 p = q + 1;
329 }
330 do_exclude_ino_str(p);
331 }
332 break;
333
334 case 'E': /* exclude inodes read from file */
335 do_exclude_from_file(optarg);
336 break;
337
338 case 'f': /* output file */
339 tapeprefix = optarg;
340 break;
341
342 case 'F': /* end of tape script */
343 eot_script = optarg;
344 break;
345
346 case 'h':
347 honorlevel = numarg("honor level", 0L, 10L);
348 break;
349
350 #ifdef HAVE_BZLIB
351 case 'j':
352 compressed = 2;
353 zipflag = COMPRESS_BZLIB;
354 if (optarg)
355 compressed = numarg("compress level", 1L, 9L);
356 break;
357 #endif /* HAVE_BZLIB */
358
359 case 'I':
360 breademax =
361 numarg ("number of errors to ignore", 0L, 0L);
362 break;
363
364 #ifdef KERBEROS
365 case 'k':
366 dokerberos = 1;
367 break;
368 #endif
369
370 case 'L':
371 /*
372 * Note that although there are LBLSIZE characters,
373 * the last must be '\0', so the limit on strlen()
374 * is really LBLSIZE-1.
375 */
376 strncpy(spcl.c_label, optarg, LBLSIZE);
377 spcl.c_label[LBLSIZE-1] = '\0';
378 if (strlen(optarg) > LBLSIZE-1) {
379 msg(
380 "WARNING Label `%s' is larger than limit of %d characters.\n",
381 optarg, LBLSIZE-1);
382 msg("WARNING: Using truncated label `%s'.\n",
383 spcl.c_label);
384 }
385 break;
386
387 case 'm': /* metadata only flag */
388 mflag = 1;
389 break;
390
391 case 'M': /* multi-volume flag */
392 Mflag = 1;
393 break;
394
395 case 'n': /* notify operators */
396 notify = 1;
397 break;
398
399 case 'q':
400 qflag = 1;
401 break;
402
403 #ifdef USE_QFA
404 case 'Q': /* create tapeposfile */
405 gTapeposfile = optarg;
406 tapepos = 1;
407 break;
408 #endif /* USE_QFA */
409
410 case 's': /* tape size, feet */
411 unlimited = 0;
412 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
413 break;
414
415 case 'S':
416 sizest = 1; /* return size estimate only */
417 break;
418
419 case 'T': /* time of last dump */
420 spcl.c_ddate = unctime(optarg);
421 if (spcl.c_ddate < 0) {
422 msg("bad time \"%s\"\n", optarg);
423 msg("The ENTIRE dump is aborted.\n");
424 exit(X_STARTUP);
425 }
426 Tflag = 1;
427 lastlevel = '?';
428 break;
429
430 case 'u': /* update dumpdates */
431 uflag = 1;
432 break;
433
434 case 'v': /* verbose */
435 vflag = 1;
436 break;
437
438 case 'W': /* what to do */
439 case 'w':
440 lastdump(ch);
441 exit(X_FINOK); /* do nothing else */
442 #ifdef HAVE_LZO
443 case 'y':
444 compressed = 2;
445 zipflag = COMPRESS_LZO;
446 break;
447 #endif /* HAVE_LZO */
448
449 #ifdef HAVE_ZLIB
450 case 'z':
451 compressed = 2;
452 zipflag = COMPRESS_ZLIB;
453 if (optarg)
454 compressed = numarg("compress level", 1L, 9L);
455 break;
456 #endif /* HAVE_ZLIB */
457
458 default:
459 usage();
460 }
461 argc -= optind;
462 argv += optind;
463
464 if (argc < 1) {
465 msg("Must specify disk or filesystem\n");
466 msg("The ENTIRE dump is aborted.\n");
467 exit(X_STARTUP);
468 }
469 diskparam = *argv++;
470 if (strlen(diskparam) >= MAXPATHLEN) {
471 msg("Disk or filesystem name too long: %s\n", diskparam);
472 msg("The ENTIRE dump is aborted.\n");
473 exit(X_STARTUP);
474 }
475 argc--;
476 incompat_flags(Tflag && uflag, 'T', 'u');
477 incompat_flags(aflag && blocksperfiles, 'a', 'B');
478 incompat_flags(aflag && cartridge, 'a', 'c');
479 incompat_flags(aflag && density, 'a', 'd');
480 incompat_flags(aflag && tsize, 'a', 's');
481
482 if (strcmp(tapeprefix, "-") == 0) {
483 pipeout++;
484 tapeprefix = "standard output";
485 }
486
487 if (blocksperfiles && !compressed)
488 for (i = 1; i <= *blocksperfiles; i++)
489 blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
490 else if (!unlimited) {
491 /*
492 * Determine how to default tape size and density
493 *
494 * density tape size
495 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
496 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
497 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
498 * (450*4 - slop)
499 * hilit19 hits again: "
500 */
501 if (density == 0)
502 density = cartridge ? 100 : 160;
503 if (tsize == 0)
504 tsize = cartridge ? 1700L*120L : 2300L*120L;
505 }
506
507 {
508 int i;
509 char *n;
510
511 if ((n = strchr(tapeprefix, ':'))) {
512 for (i = 0; i < (n - tapeprefix); i++) {
513 if (tapeprefix[i] == '/')
514 break;
515 }
516 if (tapeprefix[i] != '/') {
517 host = tapeprefix;
518 tapeprefix = strchr(host, ':');
519 *tapeprefix++ = '\0';
520 #ifdef RDUMP
521 if (index(tapeprefix, '\n')) {
522 msg("invalid characters in tape\n");
523 msg("The ENTIRE dump is aborted.\n");
524 exit(X_STARTUP);
525 }
526 if (rmthost(host) == 0)
527 exit(X_STARTUP);
528 #else
529 msg("remote dump not enabled\n");
530 msg("The ENTIRE dump is aborted.\n");
531 exit(X_STARTUP);
532 #endif
533 }
534 }
535 }
536
537 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
538 if (Apath && (Afile = open(Apath, O_WRONLY|O_CREAT|O_TRUNC,
539 S_IRUSR | S_IWUSR | S_IRGRP |
540 S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
541 msg("Cannot open %s for writing: %s\n",
542 optarg, strerror(errno));
543 msg("The ENTIRE dump is aborted.\n");
544 exit(X_STARTUP);
545 }
546
547 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
548 signal(SIGHUP, sig);
549 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
550 signal(SIGTRAP, sig);
551 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
552 signal(SIGFPE, sig);
553 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
554 signal(SIGBUS, sig);
555 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
556 signal(SIGSEGV, sig);
557 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
558 signal(SIGTERM, sig);
559 if (signal(SIGINT, interrupt) == SIG_IGN)
560 signal(SIGINT, SIG_IGN);
561 #ifdef SIGXCPU
562 signal(SIGXCPU, SIG_IGN);
563 #endif /* SIGXCPU */
564 #ifdef SIGXFSZ
565 signal(SIGXFSZ, SIG_IGN);
566 #endif /* SIGXFSZ */
567
568 set_operators(); /* /etc/group snarfed */
569 getfstab(); /* /etc/fstab snarfed */
570
571 /*
572 * disk may end in / and this can confuse
573 * fstabsearch.
574 */
575 i = strlen(diskparam) - 1;
576 if (i > 1 && diskparam[i] == '/')
577 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
578 diskparam[i] = '\0';
579
580 disk = get_device_name(diskparam);
581 if (!disk) { /* null means the disk is some form
582 of LABEL= or UID= but it was not
583 found */
584 msg("Cannot find a disk having %s\n", diskparam);
585 msg("The ENTIRE dump is aborted.\n");
586 exit(X_STARTUP);
587 }
588 /*
589 * disk can be either the full special file name,
590 * the suffix of the special file name,
591 * the special name missing the leading '/',
592 * the file system name with or without the leading '/'.
593 */
594 if ((dt = fstabsearch(disk)) != NULL) {
595 /* if found then only one parameter (i.e. partition)
596 * is allowed */
597 if (argc >= 1) {
598 (void)fprintf(stderr, "Unknown arguments to dump:");
599 while (argc--)
600 (void)fprintf(stderr, " %s", *argv++);
601 (void)fprintf(stderr, "\n");
602 msg("The ENTIRE dump is aborted.\n");
603 exit(X_STARTUP);
604 }
605 disk = rawname(dt->mnt_fsname);
606 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
607 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
608 } else {
609 #ifdef __linux__
610 #ifdef HAVE_REALPATH
611 if (realpath(disk, pathname) == NULL)
612 #endif
613 strcpy(pathname, disk);
614 /*
615 * The argument could be now a mountpoint of
616 * a filesystem specified in fstab. Search for it.
617 */
618 if ((dt = fstabsearch(pathname)) != NULL) {
619 disk = rawname(dt->mnt_fsname);
620 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
621 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
622 } else {
623 /*
624 * The argument was not found in the fstab
625 * assume that this is a subtree and search for it
626 */
627 dt = fstabsearchdir(pathname, directory);
628 if (dt != NULL) {
629 char name[MAXPATHLEN];
630 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
631 (void)snprintf(name, sizeof(name), "%s (dir %s)",
632 dt->mnt_dir, directory);
633 (void)strncpy(spcl.c_filesys, name, NAMELEN);
634 disk = rawname(dt->mnt_fsname);
635 } else {
636 (void)strncpy(spcl.c_dev, disk, NAMELEN);
637 (void)strncpy(spcl.c_filesys, "an unlisted file system",
638 NAMELEN);
639 }
640 }
641 #else
642 (void)strncpy(spcl.c_dev, disk, NAMELEN);
643 (void)strncpy(spcl.c_filesys, "an unlisted file system",
644 NAMELEN);
645 #endif
646 }
647
648 if (directory[0] != 0) {
649 if (level != '0') {
650 msg("Only level 0 dumps are allowed on a subdirectory\n");
651 msg("The ENTIRE dump is aborted.\n");
652 exit(X_STARTUP);
653 }
654 if (uflag) {
655 msg("You can't update the dumpdates file when dumping a subdirectory\n");
656 msg("The ENTIRE dump is aborted.\n");
657 exit(X_STARTUP);
658 }
659 }
660 spcl.c_dev[NAMELEN-1] = '\0';
661 spcl.c_filesys[NAMELEN-1] = '\0';
662 (void)gethostname(spcl.c_host, NAMELEN);
663 spcl.c_host[NAMELEN-1] = '\0';
664 spcl.c_level = level - '0';
665 spcl.c_type = TS_TAPE;
666 if (!Tflag)
667 getdumptime(uflag); /* dumpdates snarfed */
668
669 if (spcl.c_ddate == 0 && spcl.c_level) {
670 msg("WARNING: There is no inferior level dump on this filesystem\n");
671 msg("WARNING: Assuming a level 0 dump by default\n");
672 level = '0';
673 spcl.c_level = 0;
674 }
675
676 if (Mflag)
677 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
678 else
679 strncpy(tape, tapeprefix, MAXPATHLEN);
680 tape[MAXPATHLEN - 1] = '\0';
681
682 if (!pipeout) {
683 if (STAT(tape, &statbuf) != -1)
684 fifoout= statbuf.st_mode & S_IFIFO;
685 }
686
687 if (!sizest) {
688
689 msg("Date of this level %c dump: %s", level,
690 ctime4(&spcl.c_date));
691 #ifdef USE_QFA
692 gThisDumpDate = spcl.c_date;
693 #endif
694 if (spcl.c_ddate)
695 msg("Date of last level %c 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 compression 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 %ld blocks.\n", tapesize);
869 } else {
870 double fetapes;
871
872 if (blocksperfiles) {
873 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 %ld blocks on %3.2f tape(s).\n",
921 tapesize, fetapes);
922 }
923
924 #ifdef USE_QFA
925 if (tapepos) {
926 msg("writing QFA positions to %s\n", gTapeposfile);
927 if ((gTapeposfd = open(gTapeposfile,
928 O_WRONLY|O_CREAT|O_TRUNC,
929 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
930 | S_IROTH | S_IWOTH)) < 0)
931 quit("can't open tapeposfile\n");
932 /* print QFA-file header */
933 snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
934 gTps[sizeof(gTps) - 1] = '\0';
935 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
936 quit("can't write tapeposfile\n");
937 sprintf(gTps, "ino\ttapeno\ttapepos\n");
938 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
939 quit("can't write tapeposfile\n");
940 }
941 #endif /* USE_QFA */
942
943 /*
944 * Allocate tape buffer.
945 */
946 if (!alloctape())
947 quit(
948 "can't allocate tape buffers - try a smaller blocking factor.\n");
949
950 startnewtape(1);
951 tstart_writing = time(NULL);
952 dumpmap(usedinomap, TS_CLRI, maxino - 1);
953
954 msg("dumping (Pass III) [directories]\n");
955 dirty = 0; /* XXX just to get gcc to shut up */
956 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
957 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
958 dirty = *map++;
959 else
960 dirty >>= 1;
961 if ((dirty & 1) == 0)
962 continue;
963 /*
964 * Skip directory inodes deleted and maybe reallocated
965 */
966 dp = getino(ino);
967 if ((dp->di_mode & IFMT) != IFDIR)
968 continue;
969 #ifdef __linux__
970 /*
971 * Skip directory inodes deleted and not yes reallocated...
972 */
973 if (dp->di_nlink == 0 || dp->di_dtime != 0)
974 continue;
975 if (vflag)
976 msg("dumping directory inode %lu\n", ino);
977 (void)dumpdirino(dp, ino);
978 #else
979 (void)dumpino(dp, ino);
980 #endif
981 }
982
983 msg("dumping (Pass IV) [regular files]\n");
984 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
985 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
986 dirty = *map++;
987 else
988 dirty >>= 1;
989 if ((dirty & 1) == 0)
990 continue;
991 /*
992 * Skip inodes deleted and reallocated as directories.
993 */
994 dp = getino(ino);
995 if ((dp->di_mode & IFMT) == IFDIR)
996 continue;
997 #ifdef __linux__
998 /*
999 * No need to check here for deleted and not yet reallocated
1000 * inodes since this is done in dumpino().
1001 */
1002 #endif
1003 if (vflag) {
1004 if (mflag && TSTINO(ino, metainomap))
1005 msg("dumping regular inode %lu (meta only)\n", ino);
1006 else
1007 msg("dumping regular inode %lu\n", ino);
1008 }
1009 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
1010 }
1011
1012 tend_writing = time(NULL);
1013 spcl.c_type = TS_END;
1014
1015 if (Afile >= 0) {
1016 volinfo[1] = ROOTINO;
1017 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1018 spcl.c_flags |= DR_INODEINFO;
1019 }
1020
1021 /*
1022 * Finish off the current tape record with trailer blocks, to ensure
1023 * at least the data in the last partial record makes it to tape.
1024 * Also make sure we write at least 1 trailer block.
1025 */
1026 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1027 writeheader(maxino - 1);
1028
1029 tnow = trewind();
1030
1031 if (pipeout || fifoout)
1032 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1033 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1034 else
1035 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1036 spcl.c_tapea,
1037 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1038 spcl.c_volume);
1039
1040 /* report dump performance, avoid division by zero */
1041 if (tend_writing - tstart_writing == 0)
1042 msg("finished in less than a second\n");
1043 else
1044 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1045 tend_writing - tstart_writing,
1046 spcl.c_tapea / (tend_writing - tstart_writing));
1047
1048 putdumptime();
1049 msg("Date of this level %c dump: %s", level,
1050 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1051 msg("Date this dump completed: %s", ctime(&tnow));
1052
1053 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1054 if (compressed) {
1055 long tapekb = bytes_written / 1024;
1056 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1057 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1058 spcl.c_tapea, tapekb, rate);
1059 }
1060
1061 if (Afile >= 0)
1062 msg("Archiving dump to %s\n", Apath);
1063
1064 broadcast("DUMP IS DONE!\7\7\n");
1065 msg("DUMP IS DONE\n");
1066 Exit(X_FINOK);
1067 /* NOTREACHED */
1068 return 0; /* gcc - shut up */
1069 }
1070
1071 static void
1072 usage(void)
1073 {
1074 char white[MAXPATHLEN];
1075 const char *ext2ver, *ext2date;
1076
1077 memset(white, ' ', MAXPATHLEN);
1078 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1079
1080 #ifdef __linux__
1081 ext2fs_get_library_version(&ext2ver, &ext2date);
1082 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1083 __progname, _DUMP_VERSION, ext2ver, ext2date);
1084 #else
1085 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1086 #endif
1087 fprintf(stderr,
1088 "usage:\t%s [-0123456789ac"
1089 #ifdef KERBEROS
1090 "k"
1091 #endif
1092 "mMnqSuv"
1093 "] [-A file] [-B records] [-b blocksize]\n"
1094 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1095 "\t%s [-f file] [-h level] [-I nr errors] "
1096 #ifdef HAVE_BZLIB
1097 "[-j zlevel] "
1098 #endif
1099 #ifdef USE_QFA
1100 "[-Q file]\n"
1101 #endif
1102 "\t%s [-s feet] "
1103 "[-T date] "
1104 #ifdef HAVE_LZO
1105 "[-y] "
1106 #endif
1107 #ifdef HAVE_ZLIB
1108 "[-z zlevel] "
1109 #endif
1110 "filesystem\n"
1111 "\t%s [-W | -w]\n",
1112 __progname, white, white, white, __progname);
1113 exit(X_STARTUP);
1114 }
1115
1116 /*
1117 * Pick up a numeric argument. It must be nonnegative and in the given
1118 * range (except that a vmax of 0 means unlimited).
1119 */
1120 static long
1121 numarg(const char *meaning, long vmin, long vmax)
1122 {
1123 char *p;
1124 long val;
1125
1126 val = strtol(optarg, &p, 10);
1127 if (*p)
1128 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1129 if (val < vmin || (vmax && val > vmax))
1130 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1131 return (val);
1132 }
1133
1134 /*
1135 * The same as numarg, just that it expects a comma separated list of numbers
1136 * and returns an array of longs with the first element containing the number
1137 * values in that array.
1138 */
1139 static long *
1140 numlistarg(const char *meaning, long vmin, long vmax)
1141 {
1142 char *p;
1143 long *vals,*curval;
1144 long valnum;
1145
1146 p = optarg;
1147 vals = NULL;
1148 valnum = 0;
1149 do {
1150 valnum++;
1151 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1152 errx(X_STARTUP, "allocating memory failed");
1153 curval = vals + valnum;
1154 *curval = strtol(p, &p, 10);
1155 if (*p && *p!=',')
1156 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1157 if (*curval < vmin || (vmax && *curval > vmax))
1158 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1159 *vals = valnum;
1160 if (*p) p++;
1161 } while(*p);
1162 return (vals);
1163 }
1164
1165 void
1166 sig(int signo)
1167 {
1168 switch(signo) {
1169 case SIGALRM:
1170 case SIGBUS:
1171 case SIGFPE:
1172 case SIGHUP:
1173 case SIGTERM:
1174 case SIGTRAP:
1175 if (pipeout || fifoout)
1176 quit("Signal on pipe: cannot recover\n");
1177 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1178 (void)fflush(stderr);
1179 (void)fflush(stdout);
1180 close_rewind();
1181 exit(X_REWRITE);
1182 /* NOTREACHED */
1183 case SIGSEGV:
1184 msg("SIGSEGV: ABORTING!\n");
1185 (void)signal(SIGSEGV, SIG_DFL);
1186 (void)kill(0, SIGSEGV);
1187 /* NOTREACHED */
1188 }
1189 }
1190
1191 const char *
1192 rawname(const char *cp)
1193 {
1194 #ifdef __linux__
1195 return cp;
1196 #else /* __linux__ */
1197 static char rawbuf[MAXPATHLEN];
1198 char *dp = strrchr(cp, '/');
1199
1200 if (dp == NULL)
1201 return (NULL);
1202 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1203 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1204 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1205 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1206 return (rawbuf);
1207 #endif /* __linux__ */
1208 }
1209
1210 /*
1211 * obsolete --
1212 * Change set of key letters and ordered arguments into something
1213 * getopt(3) will like.
1214 */
1215 static void
1216 obsolete(int *argcp, char **argvp[])
1217 {
1218 int argc, flags;
1219 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1220
1221 /* Setup. */
1222 argv = *argvp;
1223 argc = *argcp;
1224
1225 /* Return if no arguments or first argument has leading dash. */
1226 ap = argv[1];
1227 if (argc == 1 || *ap == '-')
1228 return;
1229
1230 /* Allocate space for new arguments. */
1231 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1232 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1233 err(X_STARTUP, "malloc new args");
1234
1235 *nargv++ = *argv;
1236 argv += 2;
1237
1238 for (flags = 0; *ap; ++ap) {
1239 switch (*ap) {
1240 case 'A':
1241 case 'B':
1242 case 'b':
1243 case 'd':
1244 case 'D':
1245 case 'e':
1246 case 'E':
1247 case 'f':
1248 case 'F':
1249 case 'h':
1250 case 'L':
1251 case 'Q':
1252 case 's':
1253 case 'T':
1254 if (*argv == NULL) {
1255 warnx("option requires an argument -- %c", *ap);
1256 usage();
1257 }
1258 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1259 err(X_STARTUP, "malloc arg");
1260 nargv[0][0] = '-';
1261 nargv[0][1] = *ap;
1262 (void)strcpy(&nargv[0][2], *argv);
1263 ++argv;
1264 ++nargv;
1265 break;
1266 default:
1267 if (!flags) {
1268 *p++ = '-';
1269 flags = 1;
1270 }
1271 *p++ = *ap;
1272 break;
1273 }
1274 }
1275
1276 /* Terminate flags. */
1277 if (flags) {
1278 *p = '\0';
1279 *nargv++ = flagsp;
1280 }
1281
1282 /* Copy remaining arguments. */
1283 while ((*nargv++ = *argv++));
1284
1285 /* Update argument count. */
1286 *argcp = nargv - *argvp - 1;
1287 }
1288
1289 /*
1290 * This tests whether an inode is in the exclude bitmap
1291 */
1292 int
1293 exclude_ino(dump_ino_t ino)
1294 {
1295 /* if the inode exclude bitmap exists and covers given inode */
1296 if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1297 /* then check this inode against it */
1298 int idx = iexclude_bitmap[ino / 8];
1299 if (idx & (1 << (ino % 8)))
1300 return 1;
1301 }
1302 return 0;
1303 }
1304
1305 /*
1306 * This adds an inode to the exclusion bitmap if it isn't already there
1307 */
1308 void
1309 do_exclude_ino(dump_ino_t ino, const char *reason)
1310 {
1311 if (exclude_ino(ino))
1312 return;
1313
1314 if (vflag) {
1315 if (reason)
1316 msg("Excluding inode %u (%s) from dump\n", ino, reason);
1317 else
1318 msg("Excluding inode %u from dump\n", ino);
1319 }
1320
1321 /* check for enough mem; initialize */
1322 if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1323 if (iexclude_bitmap_bytes == 0) {
1324 unsigned int j;
1325 iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1326 iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1327 if (iexclude_bitmap == NULL) {
1328 msg("allocating memory failed\n");
1329 exit(X_STARTUP);
1330 }
1331 for (j = 0; j < iexclude_bitmap_bytes; j++)
1332 iexclude_bitmap[j] = 0;
1333 }
1334 else {
1335 unsigned int oldsize = iexclude_bitmap_bytes;
1336 iexclude_bitmap_bytes *=
1337 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1338 iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1339 iexclude_bitmap_bytes);
1340 if (iexclude_bitmap == NULL) {
1341 msg("allocating memory failed\n");
1342 exit(X_STARTUP);
1343 }
1344 for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1345 iexclude_bitmap[oldsize] = 0;
1346 }
1347 }
1348
1349 iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1350 }
1351
1352 static void
1353 do_exclude_ino_str(char * ino) {
1354 char *r;
1355 unsigned long inod;
1356
1357 inod = strtoul(ino, &r, 10);
1358 if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1359 msg("Invalid inode argument %s\n", ino);
1360 msg("The ENTIRE dump is aborted.\n");
1361 exit(X_STARTUP);
1362 }
1363 do_exclude_ino(inod, NULL);
1364 }
1365
1366 /*
1367 * This reads a file containing one inode number per line and exclude them all
1368 */
1369 static void
1370 do_exclude_from_file(char *file) {
1371 FILE *f;
1372 char *p, fname[MAXPATHLEN];
1373
1374
1375 if (!( f = fopen(file, "r")) ) {
1376 msg("Cannot open file for reading: %s\n", file);
1377 msg("The ENTIRE dump is aborted.\n");
1378 exit(X_STARTUP);
1379 }
1380 while (( p = fgets(fname, MAXPATHLEN, f))) {
1381 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1382 *(p + strlen(p) - 1) = '\0';
1383 if ( !*p ) /* skip empty lines */
1384 continue;
1385 do_exclude_ino_str(p);
1386 }
1387 fclose(f);
1388 }
1389
1390 static void incompat_flags(int cond, char flag1, char flag2) {
1391 if (cond) {
1392 msg("You cannot use the %c and %c flags together.\n",
1393 flag1, flag2);
1394 msg("The ENTIRE dump is aborted.\n");
1395 exit(X_STARTUP);
1396 }
1397 }
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