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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 <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 1.95 2009/06/18 09:35:14 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 #ifndef SBOFF
88 #define SBOFF (SBLOCK * DEV_BSIZE)
89 #endif
90
91 int abortifconnerr = 1; /* set to 1 if lib dumprmt.o should exit on connection errors
92 otherwise just print a message using msg */
93 /*
94 * Dump maps used to describe what is to be dumped.
95 */
96 int mapsize; /* size of the state maps */
97 char *usedinomap; /* map of allocated inodes */
98 char *dumpdirmap; /* map of directories to be dumped */
99 char *dumpinomap; /* map of files to be dumped */
100 char *metainomap; /* which of the inodes in dumpinomap will get
101 only their metadata dumped */
102
103 const char *disk; /* name of the disk file */
104 char tape[MAXPATHLEN];/* name of the tape file */
105 char *tapeprefix; /* prefix of the tape file */
106 char *dumpdates; /* name of the file containing dump date information*/
107 char lastlevel[NUM_STR_SIZE];/* dump level of previous dump */
108 char level[NUM_STR_SIZE];/* dump level of this dump */
109 int zipflag; /* which compression method */
110 int Afile = -1; /* archive file descriptor */
111 int AfileActive = 1;/* Afile flag */
112 int uflag; /* update flag */
113 int mflag; /* dump metadata only if possible */
114 int Mflag; /* multi-volume flag */
115 int qflag; /* quit on errors flag */
116 int vflag; /* verbose flag */
117 int breademax = 32; /* maximum number of bread errors before we quit */
118 char *eot_script; /* end of volume script fiag */
119 int diskfd; /* disk file descriptor */
120 int tapefd; /* tape file descriptor */
121 int pipeout; /* true => output to standard output */
122 int fifoout; /* true => output to fifo */
123 dump_ino_t curino; /* current inumber; used globally */
124 int newtape; /* new tape flag */
125 int density; /* density in 0.1" units */
126 long tapesize; /* estimated tape size, blocks */
127 long tsize; /* tape size in 0.1" units */
128 long asize; /* number of 0.1" units written on current tape */
129 int etapes; /* estimated number of tapes */
130 int nonodump; /* if set, do not honor UF_NODUMP user flags */
131 int unlimited; /* if set, write to end of medium */
132 int compressed; /* if set, dump is to be compressed */
133 long long bytes_written;/* total bytes written to tape */
134 long uncomprblks; /* uncompressed blocks written to tape */
135 int notify; /* notify operator flag */
136 int blockswritten; /* number of blocks written on current tape */
137 int tapeno; /* current tape number */
138 time_t tstart_writing; /* when started writing the first tape block */
139 time_t tend_writing; /* after writing the last tape block */
140 #ifdef __linux__
141 ext2_filsys fs;
142 #else
143 struct fs *sblock; /* the file system super block */
144 char sblock_buf[MAXBSIZE];
145 #endif
146 long xferrate; /* averaged transfer rate of all volumes */
147 long dev_bsize; /* block size of underlying disk device */
148 int dev_bshift; /* log2(dev_bsize) */
149 int tp_bshift; /* log2(TP_BSIZE) */
150 dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
151
152 #ifdef USE_QFA
153 int gTapeposfd;
154 char *gTapeposfile;
155 char gTps[255];
156 int32_t gThisDumpDate;
157 #endif /* USE_QFA */
158
159 struct dumptime *dthead; /* head of the list version */
160 int nddates; /* number of records (might be zero) */
161 int ddates_in; /* we have read the increment file */
162 struct dumpdates **ddatev; /* the arrayfied version */
163
164 int notify = 0; /* notify operator flag */
165 int blockswritten = 0; /* number of blocks written on current tape */
166 int tapeno = 0; /* current tape number */
167 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
168 int ntrec = NTREC; /* # blocks in each tape record */
169 int cartridge = 0; /* Assume non-cartridge tape */
170 #ifdef USE_QFA
171 int tapepos = 0; /* assume no QFA tapeposition needed by user */
172 #endif /* USE_QFA */
173 int dokerberos = 0; /* Use Kerberos authentication */
174 long dev_bsize = 1; /* recalculated below */
175 long *blocksperfiles = NULL; /* output blocks per file(s) */
176 char *host = NULL; /* remote host (if any) */
177 int sizest = 0; /* return size estimate only */
178 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
179 long long bytes_written = 0; /* total bytes written */
180 long uncomprblks = 0;/* uncompressed blocks written */
181
182 long smtc_errno;
183
184 #ifdef __linux__
185 char *__progname;
186 #endif
187
188 int maxbsize = 1024*1024; /* XXX MAXBSIZE from sys/param.h */
189 static long numarg __P((const char *, long, long));
190 static long *numlistarg __P((const char *, long, long));
191 static void obsolete __P((int *, char **[]));
192 static void usage __P((void));
193 static void do_exclude_from_file __P((char *));
194 static void do_exclude_ino_str __P((char *));
195 static void incompat_flags __P((int, char, char));
196
197 static char* iexclude_bitmap = NULL; /* the inode exclude bitmap */
198 static unsigned int iexclude_bitmap_bytes = 0; /* size of bitmap in bytes */
199
200 int
201 main(int argc, char *argv[])
202 {
203 dump_ino_t ino;
204 int dirty;
205 struct dinode *dp;
206 struct mntent *dt;
207 char *map;
208 int ch, pch = 0;
209 int i, anydirskipped;
210 int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
211 dump_ino_t maxino;
212 struct STAT statbuf;
213 dev_t filedev = 0;
214 #ifdef __linux__
215 errcode_t retval;
216 char directory[MAXPATHLEN];
217 char pathname[MAXPATHLEN];
218 #endif
219 time_t tnow;
220 char *diskparam;
221 char *Apath = NULL;
222
223 spcl.c_label[0] = '\0';
224 spcl.c_date = time(NULL);
225
226 #ifdef __linux__
227 __progname = argv[0];
228 directory[0] = 0;
229 initialize_ext2_error_table();
230 #endif
231
232 tsize = 0; /* Default later, based on 'c' option for cart tapes */
233 unlimited = 1;
234 eot_script = NULL;
235 if ((tapeprefix = getenv("TAPE")) == NULL)
236 tapeprefix = _PATH_DEFTAPE;
237 dumpdates = _PATH_DUMPDATES;
238 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
239 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
240 memset(&lastlevel, 0, NUM_STR_SIZE);
241 memset(&level, 0, NUM_STR_SIZE);
242 /* Default dump level is zero. */
243 level[0] = '0';
244
245 if (argc < 2)
246 usage();
247
248 obsolete(&argc, &argv);
249
250 #ifdef USE_QFA
251 gTapeposfd = -1;
252 #endif /* USE_QFA */
253
254 while ((ch = getopt(argc, argv,
255 "0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
256 #ifdef HAVE_BZLIB
257 "j::"
258 #endif
259 "L:"
260 #ifdef KERBEROS
261 "k"
262 #endif
263 "mMnq"
264 #ifdef USE_QFA
265 "Q:"
266 #endif
267 "s:ST:uvWw"
268 #ifdef HAVE_LZO
269 "y"
270 #endif
271 #ifdef HAVE_ZLIB
272 "z::"
273 #endif
274 )) != -1)
275 switch (ch) {
276 /* dump level */
277 case '0': case '1': case '2': case '3': case '4':
278 case '5': case '6': case '7': case '8': case '9':
279 if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
280 level[strlen(level)] = ch;
281 else
282 level[0] = ch;
283 pch = ch;
284 break;
285
286 case 'A': /* archive file */
287 Apath = optarg;
288 break;
289
290 case 'a': /* `auto-size', Write to EOM. */
291 unlimited = 1;
292 aflag = 1;
293 break;
294
295 case 'B': /* blocks per output file */
296 unlimited = 0;
297 blocksperfiles = numlistarg("number of blocks per file",
298 1L, 0L);
299 break;
300
301 case 'b': /* blocks per tape write */
302 ntrec = numarg("number of blocks per write",
303 1L, 1048576L);
304 if (ntrec > maxbsize/1024) {
305 msg("Please choose a blocksize <= %dkB\n",
306 maxbsize/1024);
307 msg("The ENTIRE dump is aborted.\n");
308 exit(X_STARTUP);
309 }
310 bflag = 1;
311 break;
312
313 case 'c': /* Tape is cart. not 9-track */
314 unlimited = 0;
315 cartridge = 1;
316 break;
317
318 case 'd': /* density, in bits per inch */
319 unlimited = 0;
320 density = numarg("density", 10L, 327670L) / 10;
321 if (density >= 625 && !bflag)
322 ntrec = HIGHDENSITYTREC;
323 break;
324
325 case 'D': /* path of dumpdates file */
326 dumpdates = optarg;
327 break;
328
329 /* 04-Feb-00 ILC */
330 case 'e': /* exclude an inode */
331 {
332 char *p = optarg, *q;
333 while ((q = strchr(p, ','))) {
334 *q = '\0';
335 do_exclude_ino_str(p);
336 p = q + 1;
337 }
338 do_exclude_ino_str(p);
339 }
340 break;
341
342 case 'E': /* exclude inodes read from file */
343 do_exclude_from_file(optarg);
344 break;
345
346 case 'f': /* output file */
347 tapeprefix = optarg;
348 break;
349
350 case 'F': /* end of tape script */
351 eot_script = optarg;
352 break;
353
354 case 'h':
355 honorlevel = numarg("honor level", 0L, 10L);
356 break;
357
358 #ifdef HAVE_BZLIB
359 case 'j':
360 compressed = 2;
361 zipflag = COMPRESS_BZLIB;
362 if (optarg)
363 compressed = numarg("compress level", 1L, 9L);
364 break;
365 #endif /* HAVE_BZLIB */
366
367 case 'I':
368 breademax =
369 numarg ("number of errors to ignore", 0L, 0L);
370 break;
371
372 #ifdef KERBEROS
373 case 'k':
374 dokerberos = 1;
375 break;
376 #endif
377
378 case 'L':
379 /*
380 * Note that although there are LBLSIZE characters,
381 * the last must be '\0', so the limit on strlen()
382 * is really LBLSIZE-1.
383 */
384 strncpy(spcl.c_label, optarg, LBLSIZE);
385 spcl.c_label[LBLSIZE-1] = '\0';
386 if (strlen(optarg) > LBLSIZE-1) {
387 msg(
388 "WARNING Label `%s' is larger than limit of %d characters.\n",
389 optarg, LBLSIZE-1);
390 msg("WARNING: Using truncated label `%s'.\n",
391 spcl.c_label);
392 }
393 break;
394
395 case 'm': /* metadata only flag */
396 mflag = 1;
397 break;
398
399 case 'M': /* multi-volume flag */
400 Mflag = 1;
401 break;
402
403 case 'n': /* notify operators */
404 notify = 1;
405 break;
406
407 case 'q':
408 qflag = 1;
409 break;
410
411 #ifdef USE_QFA
412 case 'Q': /* create tapeposfile */
413 gTapeposfile = optarg;
414 tapepos = 1;
415 break;
416 #endif /* USE_QFA */
417
418 case 's': /* tape size, feet */
419 unlimited = 0;
420 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
421 break;
422
423 case 'S':
424 sizest = 1; /* return size estimate only */
425 break;
426
427 case 'T': /* time of last dump */
428 spcl.c_ddate = unctime(optarg);
429 if (spcl.c_ddate < 0) {
430 msg("bad time \"%s\"\n", optarg);
431 msg("The ENTIRE dump is aborted.\n");
432 exit(X_STARTUP);
433 }
434 Tflag = 1;
435 lastlevel[0] = '?'; lastlevel[1] = '\0';
436 break;
437
438 case 'u': /* update dumpdates */
439 uflag = 1;
440 break;
441
442 case 'v': /* verbose */
443 vflag = 1;
444 break;
445
446 case 'W': /* what to do */
447 case 'w':
448 lastdump(ch);
449 exit(X_FINOK); /* do nothing else */
450 #ifdef HAVE_LZO
451 case 'y':
452 compressed = 2;
453 zipflag = COMPRESS_LZO;
454 break;
455 #endif /* HAVE_LZO */
456
457 #ifdef HAVE_ZLIB
458 case 'z':
459 compressed = 2;
460 zipflag = COMPRESS_ZLIB;
461 if (optarg)
462 compressed = numarg("compress level", 1L, 9L);
463 break;
464 #endif /* HAVE_ZLIB */
465
466 default:
467 usage();
468 }
469 argc -= optind;
470 argv += optind;
471
472 if (argc < 1) {
473 msg("Must specify disk or filesystem\n");
474 msg("The ENTIRE dump is aborted.\n");
475 exit(X_STARTUP);
476 }
477 diskparam = *argv++;
478 if (strlen(diskparam) >= MAXPATHLEN) {
479 msg("Disk or filesystem name too long: %s\n", diskparam);
480 msg("The ENTIRE dump is aborted.\n");
481 exit(X_STARTUP);
482 }
483 argc--;
484 incompat_flags(Tflag && uflag, 'T', 'u');
485 incompat_flags(aflag && blocksperfiles, 'a', 'B');
486 incompat_flags(aflag && cartridge, 'a', 'c');
487 incompat_flags(aflag && density, 'a', 'd');
488 incompat_flags(aflag && tsize, 'a', 's');
489
490 if (strcmp(tapeprefix, "-") == 0) {
491 pipeout++;
492 tapeprefix = "standard output";
493 }
494
495 if (blocksperfiles && !compressed)
496 for (i = 1; i <= *blocksperfiles; i++)
497 blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
498 else if (!unlimited) {
499 /*
500 * Determine how to default tape size and density
501 *
502 * density tape size
503 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
504 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
505 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
506 * (450*4 - slop)
507 * hilit19 hits again: "
508 */
509 if (density == 0)
510 density = cartridge ? 100 : 160;
511 if (tsize == 0)
512 tsize = cartridge ? 1700L*120L : 2300L*120L;
513 }
514
515 {
516 int i;
517 char *n;
518
519 if ((n = strchr(tapeprefix, ':'))) {
520 for (i = 0; i < (n - tapeprefix); i++) {
521 if (tapeprefix[i] == '/')
522 break;
523 }
524 if (tapeprefix[i] != '/') {
525 host = tapeprefix;
526 tapeprefix = strchr(host, ':');
527 *tapeprefix++ = '\0';
528 #ifdef RDUMP
529 if (index(tapeprefix, '\n')) {
530 msg("invalid characters in tape\n");
531 msg("The ENTIRE dump is aborted.\n");
532 exit(X_STARTUP);
533 }
534 if (rmthost(host) == 0)
535 exit(X_STARTUP);
536 #else
537 msg("remote dump not enabled\n");
538 msg("The ENTIRE dump is aborted.\n");
539 exit(X_STARTUP);
540 #endif
541 }
542 }
543 }
544
545 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
546 if (Apath && (Afile = open(Apath, O_WRONLY|O_CREAT|O_TRUNC,
547 S_IRUSR | S_IWUSR | S_IRGRP |
548 S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
549 msg("Cannot open %s for writing: %s\n",
550 optarg, strerror(errno));
551 msg("The ENTIRE dump is aborted.\n");
552 exit(X_STARTUP);
553 }
554
555 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
556 signal(SIGHUP, sig);
557 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
558 signal(SIGTRAP, sig);
559 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
560 signal(SIGFPE, sig);
561 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
562 signal(SIGBUS, sig);
563 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
564 signal(SIGSEGV, sig);
565 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
566 signal(SIGTERM, sig);
567 if (signal(SIGINT, interrupt) == SIG_IGN)
568 signal(SIGINT, SIG_IGN);
569 #ifdef SIGXCPU
570 signal(SIGXCPU, SIG_IGN);
571 #endif /* SIGXCPU */
572 #ifdef SIGXFSZ
573 signal(SIGXFSZ, SIG_IGN);
574 #endif /* SIGXFSZ */
575
576 set_operators(); /* /etc/group snarfed */
577 getfstab(); /* /etc/fstab snarfed */
578
579 /*
580 * disk may end in / and this can confuse
581 * fstabsearch.
582 */
583 i = strlen(diskparam) - 1;
584 if (i > 1 && diskparam[i] == '/')
585 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
586 diskparam[i] = '\0';
587
588 disk = get_device_name(diskparam);
589 if (!disk)
590 disk = strdup(diskparam);
591
592 /*
593 * disk can be either the full special file name,
594 * the suffix of the special file name,
595 * the special name missing the leading '/',
596 * the file system name with or without the leading '/'.
597 */
598 if ((dt = fstabsearch(disk)) != NULL) {
599 /* if found then only one parameter (i.e. partition)
600 * is allowed */
601 if (argc >= 1) {
602 (void)fprintf(stderr, "Unknown arguments to dump:");
603 while (argc--)
604 (void)fprintf(stderr, " %s", *argv++);
605 (void)fprintf(stderr, "\n");
606 msg("The ENTIRE dump is aborted.\n");
607 exit(X_STARTUP);
608 }
609 disk = rawname(dt->mnt_fsname);
610 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
611 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
612 } else {
613 #ifdef __linux__
614 #ifdef HAVE_REALPATH
615 if (realpath(disk, pathname) == NULL)
616 #endif
617 strcpy(pathname, disk);
618 /*
619 * The argument could be now a mountpoint of
620 * a filesystem specified in fstab. Search for it.
621 */
622 if ((dt = fstabsearch(pathname)) != NULL) {
623 disk = rawname(dt->mnt_fsname);
624 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
625 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
626 } else {
627 /*
628 * The argument was not found in the fstab
629 * assume that this is a subtree and search for it
630 */
631 dt = fstabsearchdir(pathname, directory);
632 if (dt != NULL) {
633 char name[MAXPATHLEN];
634 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
635 (void)snprintf(name, sizeof(name), "%s (dir %s)",
636 dt->mnt_dir, directory);
637 (void)strncpy(spcl.c_filesys, name, NAMELEN);
638 disk = rawname(dt->mnt_fsname);
639 } else {
640 (void)strncpy(spcl.c_dev, disk, NAMELEN);
641 (void)strncpy(spcl.c_filesys, "an unlisted file system",
642 NAMELEN);
643 }
644 }
645 #else
646 (void)strncpy(spcl.c_dev, disk, NAMELEN);
647 (void)strncpy(spcl.c_filesys, "an unlisted file system",
648 NAMELEN);
649 #endif
650 }
651
652 if (directory[0] != 0) {
653 if (atoi(level) != 0) {
654 msg("Only level 0 dumps are allowed on a subdirectory\n");
655 msg("The ENTIRE dump is aborted.\n");
656 exit(X_STARTUP);
657 }
658 if (uflag) {
659 msg("You can't update the dumpdates file when dumping a subdirectory\n");
660 msg("The ENTIRE dump is aborted.\n");
661 exit(X_STARTUP);
662 }
663 }
664 spcl.c_dev[NAMELEN-1] = '\0';
665 spcl.c_filesys[NAMELEN-1] = '\0';
666 (void)gethostname(spcl.c_host, NAMELEN);
667 spcl.c_host[NAMELEN-1] = '\0';
668 spcl.c_level = atoi(level);
669 spcl.c_type = TS_TAPE;
670 if (!Tflag)
671 getdumptime(uflag); /* dumpdates snarfed */
672
673 if (spcl.c_ddate == 0 && spcl.c_level) {
674 msg("WARNING: There is no inferior level dump on this filesystem\n");
675 msg("WARNING: Assuming a level 0 dump by default\n");
676 level[0] = '0'; level[1] = '\0';
677 spcl.c_level = 0;
678 }
679
680 if (Mflag)
681 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
682 else
683 strncpy(tape, tapeprefix, MAXPATHLEN);
684 tape[MAXPATHLEN - 1] = '\0';
685
686 if (!pipeout) {
687 if (STAT(tape, &statbuf) != -1)
688 fifoout= statbuf.st_mode & S_IFIFO;
689 }
690
691 if (!sizest) {
692
693 msg("Date of this level %s dump: %s", level,
694 ctime4(&spcl.c_date));
695 #ifdef USE_QFA
696 gThisDumpDate = spcl.c_date;
697 #endif
698 if (spcl.c_ddate)
699 msg("Date of last level %s dump: %s", lastlevel,
700 ctime4(&spcl.c_ddate));
701 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
702 if (host)
703 msgtail("to %s on host %s\n", tape, host);
704 else
705 msgtail("to %s\n", tape);
706 } /* end of size estimate */
707
708 #ifdef __linux__
709 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
710 msg("Cannot open %s\n", disk);
711 msg("The ENTIRE dump is aborted.\n");
712 exit(X_STARTUP);
713 }
714 #ifdef BLKFLSBUF
715 (void)ioctl(diskfd, BLKFLSBUF, 0);
716 #endif
717 retval = dump_fs_open(disk, &fs);
718 if (retval) {
719 com_err(disk, retval, "while opening filesystem");
720 if (retval == EXT2_ET_REV_TOO_HIGH)
721 msg("Get a newer version of dump!\n");
722 msg("The ENTIRE dump is aborted.\n");
723 exit(X_STARTUP);
724 }
725 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
726 com_err(disk, retval, "while opening filesystem");
727 msg("Get a newer version of dump!\n");
728 msg("The ENTIRE dump is aborted.\n");
729 exit(X_STARTUP);
730 }
731 /* if no user label specified, use ext2 filesystem label if available */
732 if (spcl.c_label[0] == '\0') {
733 const char *lbl;
734 if ( (lbl = get_device_label(disk)) != NULL) {
735 strncpy(spcl.c_label, lbl, LBLSIZE);
736 spcl.c_label[LBLSIZE-1] = '\0';
737 }
738 else
739 strcpy(spcl.c_label, "none"); /* safe strcpy. */
740 }
741 sync();
742 dev_bsize = DEV_BSIZE;
743 dev_bshift = ffs(dev_bsize) - 1;
744 if (dev_bsize != (1 << dev_bshift))
745 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
746 tp_bshift = ffs(TP_BSIZE) - 1;
747 if (TP_BSIZE != (1 << tp_bshift))
748 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
749 maxino = fs->super->s_inodes_count + 1;
750 spcl.c_flags |= DR_NEWINODEFMT;
751 #else /* __linux __*/
752 if ((diskfd = open(disk, O_RDONLY)) < 0) {
753 msg("Cannot open %s\n", disk);
754 msg("The ENTIRE dump is aborted.\n");
755 exit(X_STARTUP);
756 }
757 sync();
758 sblock = (struct fs *)sblock_buf;
759 bread(SBOFF, (char *) sblock, SBSIZE);
760 if (sblock->fs_magic != FS_MAGIC)
761 quit("bad sblock magic number\n");
762 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
763 dev_bshift = ffs(dev_bsize) - 1;
764 if (dev_bsize != (1 << dev_bshift))
765 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
766 tp_bshift = ffs(TP_BSIZE) - 1;
767 if (TP_BSIZE != (1 << tp_bshift))
768 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
769 #ifdef FS_44INODEFMT
770 if (sblock->fs_inodefmt >= FS_44INODEFMT)
771 spcl.c_flags |= DR_NEWINODEFMT;
772 #endif
773 maxino = sblock->fs_ipg * sblock->fs_ncg;
774 #endif /* __linux__ */
775 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
776 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
777 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
778 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
779 metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
780 if (usedinomap == NULL || dumpdirmap == NULL ||
781 dumpinomap == NULL || metainomap == NULL)
782 quit("out of memory allocating inode maps\n");
783 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
784
785 nonodump = spcl.c_level < honorlevel;
786
787 if (!sizest) {
788 msg("Label: %s\n", spcl.c_label);
789
790 msg("Writing %d Kilobyte records\n", ntrec);
791
792 if (compressed) {
793 if (zipflag == COMPRESS_LZO)
794 msg("Compressing output (lzo)\n");
795 else
796 msg("Compressing output at compression level %d (%s)\n",
797 compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
798 }
799 }
800
801 #if defined(SIGINFO)
802 (void)signal(SIGINFO, statussig);
803 #endif
804
805 if (!sizest)
806 msg("mapping (Pass I) [regular files]\n");
807 #ifdef __linux__
808 if (directory[0] == 0)
809 anydirskipped = mapfiles(maxino, &tapesize);
810 else {
811 if (LSTAT(pathname, &statbuf) == -1) {
812 msg("File cannot be accessed (%s).\n", pathname);
813 msg("The ENTIRE dump is aborted.\n");
814 exit(X_STARTUP);
815 }
816 filedev = statbuf.st_dev;
817 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
818 anydirskipped = maponefile(maxino, &tapesize,
819 directory);
820 else
821 anydirskipped = mapfilesfromdir(maxino, &tapesize,
822 directory);
823 }
824 while (argc--) {
825 int anydirskipped2;
826 char *p = *argv;
827 /* check if file is available */
828 if (LSTAT(p, &statbuf) == -1) {
829 msg("File cannot be accessed (%s).\n", p);
830 msg("The ENTIRE dump is aborted.\n");
831 exit(X_STARTUP);
832 }
833 /* check if file is on same unix partiton as the first
834 * argument */
835 if (statbuf.st_dev != filedev) {
836 msg("Files are not on same file system (%s).\n", p);
837 msg("The ENTIRE dump is aborted.\n");
838 exit(X_STARTUP);
839 }
840 /* check if file is a directory */
841 if (!(statbuf.st_mode & S_IFDIR))
842 anydirskipped2 = maponefile(maxino, &tapesize,
843 p+strlen(dt->mnt_dir));
844 else
845 /* read directory inodes.
846 * NOTE: nested directories are not recognized
847 * so inodes may be umped twice!
848 */
849 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
850 p+strlen(dt->mnt_dir));
851 if (!anydirskipped)
852 anydirskipped = anydirskipped2;
853 argv++;
854 }
855 #else
856 anydirskipped = mapfiles(maxino, &tapesize);
857 #endif
858
859 if (!sizest)
860 msg("mapping (Pass II) [directories]\n");
861 while (anydirskipped) {
862 anydirskipped = mapdirs(maxino, &tapesize);
863 }
864
865 if (sizest) {
866 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
867 exit(X_FINOK);
868 } /* stop here for size estimate */
869
870 if (pipeout || unlimited) {
871 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
872 msg("estimated %ld blocks.\n", tapesize);
873 } else {
874 double fetapes;
875
876 if (blocksperfiles) {
877 long tapesize_left;
878
879 tapesize_left = tapesize;
880 fetapes = 0;
881 for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
882 fetapes++;
883 if (tapesize_left > blocksperfiles[i])
884 tapesize_left -= blocksperfiles[i];
885 else
886 tapesize_left = 0;
887 }
888 if (tapesize_left)
889 fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
890 } else if (cartridge) {
891 /* Estimate number of tapes, assuming streaming stops at
892 the end of each block written, and not in mid-block.
893 Assume no erroneous blocks; this can be compensated
894 for with an artificially low tape size. */
895 fetapes =
896 ( (double) tapesize /* blocks */
897 * TP_BSIZE /* bytes/block */
898 * (1.0/density) /* 0.1" / byte " */
899 +
900 (double) tapesize /* blocks */
901 * (1.0/ntrec) /* streaming-stops per block */
902 * 15.48 /* 0.1" / streaming-stop " */
903 ) * (1.0 / tsize ); /* tape / 0.1" " */
904 } else {
905 /* Estimate number of tapes, for old fashioned 9-track
906 tape */
907 int tenthsperirg = (density == 625) ? 3 : 7;
908 fetapes =
909 ( (double) tapesize /* blocks */
910 * TP_BSIZE /* bytes / block */
911 * (1.0/density) /* 0.1" / byte " */
912 +
913 (double) tapesize /* blocks */
914 * (1.0/ntrec) /* IRG's / block */
915 * tenthsperirg /* 0.1" / IRG " */
916 ) * (1.0 / tsize ); /* tape / 0.1" " */
917 }
918 etapes = fetapes; /* truncating assignment */
919 etapes++;
920 /* count the dumped inodes map on each additional tape */
921 tapesize += (etapes - 1) *
922 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
923 tapesize += etapes + ntrec; /* headers + trailer blks */
924 msg("estimated %ld blocks on %3.2f tape(s).\n",
925 tapesize, fetapes);
926 }
927
928 #ifdef USE_QFA
929 if (tapepos) {
930 msg("writing QFA positions to %s\n", gTapeposfile);
931 if ((gTapeposfd = open(gTapeposfile,
932 O_WRONLY|O_CREAT|O_TRUNC,
933 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
934 | S_IROTH | S_IWOTH)) < 0)
935 quit("can't open tapeposfile\n");
936 /* print QFA-file header */
937 snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
938 gTps[sizeof(gTps) - 1] = '\0';
939 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
940 quit("can't write tapeposfile\n");
941 sprintf(gTps, "ino\ttapeno\ttapepos\n");
942 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
943 quit("can't write tapeposfile\n");
944 }
945 #endif /* USE_QFA */
946
947 /*
948 * Allocate tape buffer.
949 */
950 if (!alloctape())
951 quit(
952 "can't allocate tape buffers - try a smaller blocking factor.\n");
953
954 startnewtape(1);
955 tstart_writing = time(NULL);
956 dumpmap(usedinomap, TS_CLRI, maxino - 1);
957
958 msg("dumping (Pass III) [directories]\n");
959 dirty = 0; /* XXX just to get gcc to shut up */
960 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
961 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
962 dirty = *map++;
963 else
964 dirty >>= 1;
965 if ((dirty & 1) == 0)
966 continue;
967 /*
968 * Skip directory inodes deleted and maybe reallocated
969 */
970 dp = getino(ino);
971 if ((dp->di_mode & IFMT) != IFDIR)
972 continue;
973 #ifdef __linux__
974 /*
975 * Skip directory inodes deleted and not yes reallocated...
976 */
977 if (dp->di_nlink == 0 || dp->di_dtime != 0)
978 continue;
979 if (vflag)
980 msg("dumping directory inode %lu\n", ino);
981 (void)dumpdirino(dp, ino);
982 #else
983 (void)dumpino(dp, ino);
984 #endif
985 }
986
987 msg("dumping (Pass IV) [regular files]\n");
988 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
989 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
990 dirty = *map++;
991 else
992 dirty >>= 1;
993 if ((dirty & 1) == 0)
994 continue;
995 /*
996 * Skip inodes deleted and reallocated as directories.
997 */
998 dp = getino(ino);
999 if ((dp->di_mode & IFMT) == IFDIR)
1000 continue;
1001 #ifdef __linux__
1002 /*
1003 * No need to check here for deleted and not yet reallocated
1004 * inodes since this is done in dumpino().
1005 */
1006 #endif
1007 if (vflag) {
1008 if (mflag && TSTINO(ino, metainomap))
1009 msg("dumping regular inode %lu (meta only)\n", ino);
1010 else
1011 msg("dumping regular inode %lu\n", ino);
1012 }
1013 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
1014 }
1015
1016 tend_writing = time(NULL);
1017 spcl.c_type = TS_END;
1018
1019 if (Afile >= 0) {
1020 volinfo[1] = ROOTINO;
1021 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1022 spcl.c_flags |= DR_INODEINFO;
1023 }
1024
1025 /*
1026 * Finish off the current tape record with trailer blocks, to ensure
1027 * at least the data in the last partial record makes it to tape.
1028 * Also make sure we write at least 1 trailer block.
1029 */
1030 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1031 writeheader(maxino - 1);
1032
1033 tnow = trewind();
1034
1035 if (pipeout || fifoout)
1036 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1037 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1038 else
1039 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1040 spcl.c_tapea,
1041 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1042 spcl.c_volume);
1043
1044 /* report dump performance, avoid division by zero */
1045 if (tend_writing - tstart_writing == 0)
1046 msg("finished in less than a second\n");
1047 else
1048 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1049 tend_writing - tstart_writing,
1050 spcl.c_tapea / (tend_writing - tstart_writing));
1051
1052 putdumptime();
1053 msg("Date of this level %s dump: %s", level,
1054 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1055 msg("Date this dump completed: %s", ctime(&tnow));
1056
1057 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1058 if (compressed) {
1059 long tapekb = bytes_written / 1024;
1060 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1061 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1062 spcl.c_tapea, tapekb, rate);
1063 }
1064
1065 if (Afile >= 0)
1066 msg("Archiving dump to %s\n", Apath);
1067
1068 broadcast("DUMP IS DONE!\7\7\n");
1069 msg("DUMP IS DONE\n");
1070 Exit(X_FINOK);
1071 /* NOTREACHED */
1072 return 0; /* gcc - shut up */
1073 }
1074
1075 static void
1076 usage(void)
1077 {
1078 char white[MAXPATHLEN];
1079 const char *ext2ver, *ext2date;
1080
1081 memset(white, ' ', MAXPATHLEN);
1082 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1083
1084 #ifdef __linux__
1085 ext2fs_get_library_version(&ext2ver, &ext2date);
1086 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1087 __progname, _DUMP_VERSION, ext2ver, ext2date);
1088 #else
1089 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1090 #endif
1091 fprintf(stderr,
1092 "usage:\t%s [-level#] [-ac"
1093 #ifdef KERBEROS
1094 "k"
1095 #endif
1096 "mMnqSuv"
1097 "] [-A file] [-B records] [-b blocksize]\n"
1098 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1099 "\t%s [-f file] [-h level] [-I nr errors] "
1100 #ifdef HAVE_BZLIB
1101 "[-j zlevel] "
1102 #endif
1103 #ifdef USE_QFA
1104 "[-Q file]\n"
1105 #endif
1106 "\t%s [-s feet] "
1107 "[-T date] "
1108 #ifdef HAVE_LZO
1109 "[-y] "
1110 #endif
1111 #ifdef HAVE_ZLIB
1112 "[-z zlevel] "
1113 #endif
1114 "filesystem\n"
1115 "\t%s [-W | -w]\n",
1116 __progname, white, white, white, __progname);
1117 exit(X_STARTUP);
1118 }
1119
1120 /*
1121 * Pick up a numeric argument. It must be nonnegative and in the given
1122 * range (except that a vmax of 0 means unlimited).
1123 */
1124 static long
1125 numarg(const char *meaning, long vmin, long vmax)
1126 {
1127 char *p;
1128 long val;
1129
1130 val = strtol(optarg, &p, 10);
1131 if (*p)
1132 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1133 if (val < vmin || (vmax && val > vmax))
1134 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1135 return (val);
1136 }
1137
1138 /*
1139 * The same as numarg, just that it expects a comma separated list of numbers
1140 * and returns an array of longs with the first element containing the number
1141 * values in that array.
1142 */
1143 static long *
1144 numlistarg(const char *meaning, long vmin, long vmax)
1145 {
1146 char *p;
1147 long *vals,*curval;
1148 long valnum;
1149
1150 p = optarg;
1151 vals = NULL;
1152 valnum = 0;
1153 do {
1154 valnum++;
1155 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1156 errx(X_STARTUP, "allocating memory failed");
1157 curval = vals + valnum;
1158 *curval = strtol(p, &p, 10);
1159 if (*p && *p!=',')
1160 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1161 if (*curval < vmin || (vmax && *curval > vmax))
1162 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1163 *vals = valnum;
1164 if (*p) p++;
1165 } while(*p);
1166 return (vals);
1167 }
1168
1169 void
1170 sig(int signo)
1171 {
1172 switch(signo) {
1173 case SIGALRM:
1174 case SIGBUS:
1175 case SIGFPE:
1176 case SIGHUP:
1177 case SIGTERM:
1178 case SIGTRAP:
1179 if (pipeout || fifoout)
1180 quit("Signal on pipe: cannot recover\n");
1181 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1182 (void)fflush(stderr);
1183 (void)fflush(stdout);
1184 close_rewind();
1185 exit(X_REWRITE);
1186 /* NOTREACHED */
1187 case SIGSEGV:
1188 msg("SIGSEGV: ABORTING!\n");
1189 (void)signal(SIGSEGV, SIG_DFL);
1190 (void)kill(0, SIGSEGV);
1191 /* NOTREACHED */
1192 }
1193 }
1194
1195 const char *
1196 rawname(const char *cp)
1197 {
1198 #ifdef __linux__
1199 return cp;
1200 #else /* __linux__ */
1201 static char rawbuf[MAXPATHLEN];
1202 char *dp = strrchr(cp, '/');
1203
1204 if (dp == NULL)
1205 return (NULL);
1206 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1207 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1208 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1209 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1210 return (rawbuf);
1211 #endif /* __linux__ */
1212 }
1213
1214 /*
1215 * obsolete --
1216 * Change set of key letters and ordered arguments into something
1217 * getopt(3) will like.
1218 */
1219 static void
1220 obsolete(int *argcp, char **argvp[])
1221 {
1222 int argc, flags;
1223 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1224
1225 /* Setup. */
1226 argv = *argvp;
1227 argc = *argcp;
1228
1229 /* Return if no arguments or first argument has leading dash. */
1230 ap = argv[1];
1231 if (argc == 1 || *ap == '-')
1232 return;
1233
1234 /* Allocate space for new arguments. */
1235 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1236 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1237 err(X_STARTUP, "malloc new args");
1238
1239 *nargv++ = *argv;
1240 argv += 2;
1241
1242 for (flags = 0; *ap; ++ap) {
1243 switch (*ap) {
1244 case 'A':
1245 case 'B':
1246 case 'b':
1247 case 'd':
1248 case 'D':
1249 case 'e':
1250 case 'E':
1251 case 'f':
1252 case 'F':
1253 case 'h':
1254 case 'L':
1255 case 'Q':
1256 case 's':
1257 case 'T':
1258 if (*argv == NULL) {
1259 warnx("option requires an argument -- %c", *ap);
1260 usage();
1261 }
1262 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1263 err(X_STARTUP, "malloc arg");
1264 nargv[0][0] = '-';
1265 nargv[0][1] = *ap;
1266 (void)strcpy(&nargv[0][2], *argv);
1267 ++argv;
1268 ++nargv;
1269 break;
1270 default:
1271 if (!flags) {
1272 *p++ = '-';
1273 flags = 1;
1274 }
1275 *p++ = *ap;
1276 break;
1277 }
1278 }
1279
1280 /* Terminate flags. */
1281 if (flags) {
1282 *p = '\0';
1283 *nargv++ = flagsp;
1284 }
1285
1286 /* Copy remaining arguments. */
1287 while ((*nargv++ = *argv++));
1288
1289 /* Update argument count. */
1290 *argcp = nargv - *argvp - 1;
1291 }
1292
1293 /*
1294 * This tests whether an inode is in the exclude bitmap
1295 */
1296 int
1297 exclude_ino(dump_ino_t ino)
1298 {
1299 /* if the inode exclude bitmap exists and covers given inode */
1300 if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1301 /* then check this inode against it */
1302 int idx = iexclude_bitmap[ino / 8];
1303 if (idx & (1 << (ino % 8)))
1304 return 1;
1305 }
1306 return 0;
1307 }
1308
1309 /*
1310 * This adds an inode to the exclusion bitmap if it isn't already there
1311 */
1312 void
1313 do_exclude_ino(dump_ino_t ino, const char *reason)
1314 {
1315 if (exclude_ino(ino))
1316 return;
1317
1318 if (vflag) {
1319 if (reason)
1320 msg("Excluding inode %u (%s) from dump\n", ino, reason);
1321 else
1322 msg("Excluding inode %u from dump\n", ino);
1323 }
1324
1325 /* check for enough mem; initialize */
1326 if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1327 if (iexclude_bitmap_bytes == 0) {
1328 unsigned int j;
1329 iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1330 iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1331 if (iexclude_bitmap == NULL) {
1332 msg("allocating memory failed\n");
1333 exit(X_STARTUP);
1334 }
1335 for (j = 0; j < iexclude_bitmap_bytes; j++)
1336 iexclude_bitmap[j] = 0;
1337 }
1338 else {
1339 unsigned int oldsize = iexclude_bitmap_bytes;
1340 iexclude_bitmap_bytes *=
1341 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1342 iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1343 iexclude_bitmap_bytes);
1344 if (iexclude_bitmap == NULL) {
1345 msg("allocating memory failed\n");
1346 exit(X_STARTUP);
1347 }
1348 for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1349 iexclude_bitmap[oldsize] = 0;
1350 }
1351 }
1352
1353 iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1354 }
1355
1356 static void
1357 do_exclude_ino_str(char * ino) {
1358 char *r;
1359 unsigned long inod;
1360
1361 inod = strtoul(ino, &r, 10);
1362 if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1363 msg("Invalid inode argument %s\n", ino);
1364 msg("The ENTIRE dump is aborted.\n");
1365 exit(X_STARTUP);
1366 }
1367 do_exclude_ino(inod, NULL);
1368 }
1369
1370 /*
1371 * This reads a file containing one inode number per line and exclude them all
1372 */
1373 static void
1374 do_exclude_from_file(char *file) {
1375 FILE *f;
1376 char *p, fname[MAXPATHLEN];
1377
1378
1379 if (!( f = fopen(file, "r")) ) {
1380 msg("Cannot open file for reading: %s\n", file);
1381 msg("The ENTIRE dump is aborted.\n");
1382 exit(X_STARTUP);
1383 }
1384 while (( p = fgets(fname, MAXPATHLEN, f))) {
1385 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1386 *(p + strlen(p) - 1) = '\0';
1387 if ( !*p ) /* skip empty lines */
1388 continue;
1389 do_exclude_ino_str(p);
1390 }
1391 fclose(f);
1392 }
1393
1394 static void incompat_flags(int cond, char flag1, char flag2) {
1395 if (cond) {
1396 msg("You cannot use the %c and %c flags together.\n",
1397 flag1, flag2);
1398 msg("The ENTIRE dump is aborted.\n");
1399 exit(X_STARTUP);
1400 }
1401 }
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