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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 1.98 2011/06/10 13:07:29 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
89 #ifndef SBOFF
90 #define SBOFF (SBLOCK * DEV_BSIZE)
91 #endif
92
93 int abortifconnerr = 1; /* set to 1 if lib dumprmt.o should exit on connection errors
94 otherwise just print a message using msg */
95 /*
96 * Dump maps used to describe what is to be dumped.
97 */
98 int mapsize; /* size of the state maps */
99 char *usedinomap; /* map of allocated inodes */
100 char *dumpdirmap; /* map of directories to be dumped */
101 char *dumpinomap; /* map of files to be dumped */
102 char *metainomap; /* which of the inodes in dumpinomap will get
103 only their metadata dumped */
104
105 const char *disk; /* name of the disk file */
106 char tape[MAXPATHLEN];/* name of the tape file */
107 char *tapeprefix; /* prefix of the tape file */
108 char *dumpdates; /* name of the file containing dump date information*/
109 char lastlevel[NUM_STR_SIZE];/* dump level of previous dump */
110 char level[NUM_STR_SIZE];/* dump level of this dump */
111 int zipflag; /* which compression method */
112 int Afile = -1; /* archive file descriptor */
113 int AfileActive = 1;/* Afile flag */
114 int uflag; /* update flag */
115 int mflag; /* dump metadata only if possible */
116 int Mflag; /* multi-volume flag */
117 int qflag; /* quit on errors flag */
118 int vflag; /* verbose flag */
119 int breademax = 32; /* maximum number of bread errors before we quit */
120 char *eot_script; /* end of volume script fiag */
121 int diskfd; /* disk file descriptor */
122 int tapefd; /* tape file descriptor */
123 int pipeout; /* true => output to standard output */
124 int fifoout; /* true => output to fifo */
125 dump_ino_t curino; /* current inumber; used globally */
126 int newtape; /* new tape flag */
127 int density; /* density in 0.1" units */
128 long long tapesize; /* estimated tape size, blocks */
129 long tsize; /* tape size in 0.1" units */
130 long asize; /* number of 0.1" units written on current tape */
131 int etapes; /* estimated number of tapes */
132 int nonodump; /* if set, do not honor UF_NODUMP user flags */
133 int unlimited; /* if set, write to end of medium */
134 int compressed; /* if set, dump is to be compressed */
135 long long bytes_written;/* total bytes written to tape */
136 long uncomprblks; /* uncompressed blocks written to tape */
137 int notify; /* notify operator flag */
138 int blockswritten; /* number of blocks written on current tape */
139 int tapeno; /* current tape number */
140 time_t tstart_writing; /* when started writing the first tape block */
141 time_t tend_writing; /* after writing the last tape block */
142 #ifdef __linux__
143 ext2_filsys fs;
144 #else
145 struct fs *sblock; /* the file system super block */
146 char sblock_buf[MAXBSIZE];
147 #endif
148 long xferrate; /* averaged transfer rate of all volumes */
149 long dev_bsize; /* block size of underlying disk device */
150 int dev_bshift; /* log2(dev_bsize) */
151 int tp_bshift; /* log2(TP_BSIZE) */
152 dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */
153
154 #ifdef USE_QFA
155 int gTapeposfd;
156 char *gTapeposfile;
157 char gTps[255];
158 int32_t gThisDumpDate;
159 #endif /* USE_QFA */
160
161 struct dumptime *dthead; /* head of the list version */
162 int nddates; /* number of records (might be zero) */
163 int ddates_in; /* we have read the increment file */
164 struct dumpdates **ddatev; /* the arrayfied version */
165
166 int notify = 0; /* notify operator flag */
167 int blockswritten = 0; /* number of blocks written on current tape */
168 int tapeno = 0; /* current tape number */
169 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
170 int ntrec = NTREC; /* # blocks in each tape record */
171 int cartridge = 0; /* Assume non-cartridge tape */
172 #ifdef USE_QFA
173 int tapepos = 0; /* assume no QFA tapeposition needed by user */
174 #endif /* USE_QFA */
175 int dokerberos = 0; /* Use Kerberos authentication */
176 long dev_bsize = 1; /* recalculated below */
177 long *blocksperfiles = NULL; /* output blocks per file(s) */
178 char *host = NULL; /* remote host (if any) */
179 int sizest = 0; /* return size estimate only */
180 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
181 long long bytes_written = 0; /* total bytes written */
182 long uncomprblks = 0;/* uncompressed blocks written */
183 Transformation *transformation = &transformation_null;
184
185 long smtc_errno;
186
187 #ifdef __linux__
188 char *__progname;
189 #endif
190
191 int maxbsize = 1024*1024; /* XXX MAXBSIZE from sys/param.h */
192 static long numarg __P((const char *, long, long));
193 static long *numlistarg __P((const char *, long, long));
194 static void obsolete __P((int *, char **[]));
195 static void usage __P((void));
196 static void do_exclude_from_file __P((char *));
197 static void do_exclude_ino_str __P((char *));
198 static void incompat_flags __P((int, char, char));
199
200 static char* iexclude_bitmap = NULL; /* the inode exclude bitmap */
201 static unsigned int iexclude_bitmap_bytes = 0; /* size of bitmap in bytes */
202
203 int
204 main(int argc, char *argv[])
205 {
206 dump_ino_t ino;
207 int dirty;
208 struct dinode *dp;
209 struct mntent *dt;
210 char *map;
211 int ch, pch = 0;
212 int i, anydirskipped;
213 int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
214 dump_ino_t maxino;
215 struct STAT statbuf;
216 dev_t filedev = 0;
217 #ifdef __linux__
218 errcode_t retval;
219 char directory[MAXPATHLEN];
220 char pathname[MAXPATHLEN];
221 #endif
222 time_t tnow;
223 char *diskparam;
224 char *Apath = NULL;
225
226 spcl.c_label[0] = '\0';
227 spcl.c_date = time(NULL);
228
229 #ifdef __linux__
230 __progname = argv[0];
231 directory[0] = 0;
232 initialize_ext2_error_table();
233 #endif
234
235 tsize = 0; /* Default later, based on 'c' option for cart tapes */
236 unlimited = 1;
237 eot_script = NULL;
238 if ((tapeprefix = getenv("TAPE")) == NULL)
239 tapeprefix = _PATH_DEFTAPE;
240 dumpdates = _PATH_DUMPDATES;
241 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
242 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
243 memset(&lastlevel, 0, NUM_STR_SIZE);
244 memset(&level, 0, NUM_STR_SIZE);
245 transformation = &transformation_null;
246 /* Default dump level is zero. */
247 level[0] = '0';
248
249 if (argc < 2)
250 usage();
251
252 obsolete(&argc, &argv);
253
254 #ifdef USE_QFA
255 gTapeposfd = -1;
256 #endif /* USE_QFA */
257
258 while ((ch = getopt(argc, argv,
259 "0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
260 #ifdef HAVE_BZLIB
261 "j::"
262 #endif
263 "L:"
264 #ifdef KERBEROS
265 "k"
266 #endif
267 "mMnq"
268 #ifdef USE_QFA
269 "Q:"
270 #endif
271 "s:ST:uvWw"
272 #ifdef HAVE_LZO
273 "y"
274 #endif
275 #ifdef HAVE_ZLIB
276 "z::"
277 #endif
278 )) != -1)
279 switch (ch) {
280 /* dump level */
281 case '0': case '1': case '2': case '3': case '4':
282 case '5': case '6': case '7': case '8': case '9':
283 if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
284 level[strlen(level)] = ch;
285 else
286 level[0] = ch;
287 pch = ch;
288 break;
289
290 case 'A': /* archive file */
291 Apath = optarg;
292 break;
293
294 case 'a': /* `auto-size', Write to EOM. */
295 unlimited = 1;
296 aflag = 1;
297 break;
298
299 case 'B': /* blocks per output file */
300 unlimited = 0;
301 blocksperfiles = numlistarg("number of blocks per file",
302 1L, 0L);
303 break;
304
305 case 'b': /* blocks per tape write */
306 ntrec = numarg("number of blocks per write",
307 1L, 1048576L);
308 if (ntrec > maxbsize/1024) {
309 msg("Please choose a blocksize <= %dkB\n",
310 maxbsize/1024);
311 msg("The ENTIRE dump is aborted.\n");
312 exit(X_STARTUP);
313 }
314 bflag = 1;
315 break;
316
317 case 'c': /* Tape is cart. not 9-track */
318 unlimited = 0;
319 cartridge = 1;
320 break;
321
322 case 'd': /* density, in bits per inch */
323 unlimited = 0;
324 density = numarg("density", 10L, 327670L) / 10;
325 if (density >= 625 && !bflag)
326 ntrec = HIGHDENSITYTREC;
327 break;
328
329 case 'D': /* path of dumpdates file */
330 dumpdates = optarg;
331 break;
332
333 /* 04-Feb-00 ILC */
334 case 'e': /* exclude an inode */
335 {
336 char *p = optarg, *q;
337 while ((q = strchr(p, ','))) {
338 *q = '\0';
339 do_exclude_ino_str(p);
340 p = q + 1;
341 }
342 do_exclude_ino_str(p);
343 }
344 break;
345
346 case 'E': /* exclude inodes read from file */
347 do_exclude_from_file(optarg);
348 break;
349
350 case 'f': /* output file */
351 tapeprefix = optarg;
352 break;
353
354 case 'F': /* end of tape script */
355 eot_script = optarg;
356 break;
357
358 case 'h':
359 honorlevel = numarg("honor level", 0L, 10L);
360 break;
361
362 #ifdef HAVE_BZLIB
363 case 'j':
364 compressed = 2;
365 zipflag = COMPRESS_BZLIB;
366 transformation = transformation_bzlib_factory(1, 2);
367 if (optarg)
368 compressed = numarg("compress level", 1L, 9L);
369 break;
370 #endif /* HAVE_BZLIB */
371
372 case 'I':
373 breademax =
374 numarg ("number of errors to ignore", 0L, 0L);
375 break;
376
377 #ifdef KERBEROS
378 case 'k':
379 dokerberos = 1;
380 break;
381 #endif
382
383 case 'L':
384 /*
385 * Note that although there are LBLSIZE characters,
386 * the last must be '\0', so the limit on strlen()
387 * is really LBLSIZE-1.
388 */
389 strncpy(spcl.c_label, optarg, LBLSIZE);
390 spcl.c_label[LBLSIZE-1] = '\0';
391 if (strlen(optarg) > LBLSIZE-1) {
392 msg(
393 "WARNING Label `%s' is larger than limit of %d characters.\n",
394 optarg, LBLSIZE-1);
395 msg("WARNING: Using truncated label `%s'.\n",
396 spcl.c_label);
397 }
398 break;
399
400 case 'm': /* metadata only flag */
401 mflag = 1;
402 break;
403
404 case 'M': /* multi-volume flag */
405 Mflag = 1;
406 break;
407
408 case 'n': /* notify operators */
409 notify = 1;
410 break;
411
412 case 'q':
413 qflag = 1;
414 break;
415
416 #ifdef USE_QFA
417 case 'Q': /* create tapeposfile */
418 gTapeposfile = optarg;
419 tapepos = 1;
420 break;
421 #endif /* USE_QFA */
422
423 case 's': /* tape size, feet */
424 unlimited = 0;
425 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
426 break;
427
428 case 'S':
429 sizest = 1; /* return size estimate only */
430 break;
431
432 case 'T': /* time of last dump */
433 spcl.c_ddate = unctime(optarg);
434 if (spcl.c_ddate < 0) {
435 msg("bad time \"%s\"\n", optarg);
436 msg("The ENTIRE dump is aborted.\n");
437 exit(X_STARTUP);
438 }
439 Tflag = 1;
440 lastlevel[0] = '?'; lastlevel[1] = '\0';
441 break;
442
443 case 'u': /* update dumpdates */
444 uflag = 1;
445 break;
446
447 case 'v': /* verbose */
448 vflag = 1;
449 break;
450
451 case 'W': /* what to do */
452 case 'w':
453 lastdump(ch);
454 exit(X_FINOK); /* do nothing else */
455 #ifdef HAVE_LZO
456 case 'y':
457 compressed = 2;
458 transformation = transformation_lzo_factory(1);
459 zipflag = COMPRESS_LZO;
460 break;
461 #endif /* HAVE_LZO */
462
463 #ifdef HAVE_ZLIB
464 case 'z':
465 compressed = 2;
466 transformation = transformation_zlib_factory(1, 2);
467 zipflag = COMPRESS_ZLIB;
468 if (optarg)
469 compressed = numarg("compress level", 1L, 9L);
470 break;
471 #endif /* HAVE_ZLIB */
472
473 default:
474 usage();
475 }
476 argc -= optind;
477 argv += optind;
478
479 if (argc < 1) {
480 msg("Must specify disk or filesystem\n");
481 msg("The ENTIRE dump is aborted.\n");
482 exit(X_STARTUP);
483 }
484 diskparam = *argv++;
485 if (strlen(diskparam) >= MAXPATHLEN) {
486 msg("Disk or filesystem name too long: %s\n", diskparam);
487 msg("The ENTIRE dump is aborted.\n");
488 exit(X_STARTUP);
489 }
490 argc--;
491 incompat_flags(Tflag && uflag, 'T', 'u');
492 incompat_flags(aflag && blocksperfiles, 'a', 'B');
493 incompat_flags(aflag && cartridge, 'a', 'c');
494 incompat_flags(aflag && density, 'a', 'd');
495 incompat_flags(aflag && tsize, 'a', 's');
496
497 if (strcmp(tapeprefix, "-") == 0) {
498 pipeout++;
499 tapeprefix = "standard output";
500 }
501
502 if (blocksperfiles && !compressed)
503 for (i = 1; i <= *blocksperfiles; i++)
504 blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
505 else if (!unlimited) {
506 /*
507 * Determine how to default tape size and density
508 *
509 * density tape size
510 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
511 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
512 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
513 * (450*4 - slop)
514 * hilit19 hits again: "
515 */
516 if (density == 0)
517 density = cartridge ? 100 : 160;
518 if (tsize == 0)
519 tsize = cartridge ? 1700L*120L : 2300L*120L;
520 }
521
522 {
523 int i;
524 char *n;
525
526 if ((n = strchr(tapeprefix, ':'))) {
527 for (i = 0; i < (n - tapeprefix); i++) {
528 if (tapeprefix[i] == '/')
529 break;
530 }
531 if (tapeprefix[i] != '/') {
532 host = tapeprefix;
533 tapeprefix = strchr(host, ':');
534 *tapeprefix++ = '\0';
535 #ifdef RDUMP
536 if (index(tapeprefix, '\n')) {
537 msg("invalid characters in tape\n");
538 msg("The ENTIRE dump is aborted.\n");
539 exit(X_STARTUP);
540 }
541 if (rmthost(host) == 0)
542 exit(X_STARTUP);
543 #else
544 msg("remote dump not enabled\n");
545 msg("The ENTIRE dump is aborted.\n");
546 exit(X_STARTUP);
547 #endif
548 }
549 }
550 }
551
552 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
553 if (Apath && (Afile = OPEN(Apath, O_WRONLY|O_CREAT|O_TRUNC,
554 S_IRUSR | S_IWUSR | S_IRGRP |
555 S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
556 msg("Cannot open %s for writing: %s\n",
557 optarg, strerror(errno));
558 msg("The ENTIRE dump is aborted.\n");
559 exit(X_STARTUP);
560 }
561
562 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
563 signal(SIGHUP, sig);
564 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
565 signal(SIGTRAP, sig);
566 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
567 signal(SIGFPE, sig);
568 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
569 signal(SIGBUS, sig);
570 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
571 signal(SIGSEGV, sig);
572 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
573 signal(SIGTERM, sig);
574 if (signal(SIGINT, interrupt) == SIG_IGN)
575 signal(SIGINT, SIG_IGN);
576 #ifdef SIGXCPU
577 signal(SIGXCPU, SIG_IGN);
578 #endif /* SIGXCPU */
579 #ifdef SIGXFSZ
580 signal(SIGXFSZ, SIG_IGN);
581 #endif /* SIGXFSZ */
582
583 set_operators(); /* /etc/group snarfed */
584 getfstab(); /* /etc/fstab snarfed */
585
586 /*
587 * disk may end in / and this can confuse
588 * fstabsearch.
589 */
590 i = strlen(diskparam) - 1;
591 if (i > 1 && diskparam[i] == '/')
592 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
593 diskparam[i] = '\0';
594
595 disk = get_device_name(diskparam);
596 if (!disk)
597 disk = strdup(diskparam);
598
599 /*
600 * disk can be either the full special file name,
601 * the suffix of the special file name,
602 * the special name missing the leading '/',
603 * the file system name with or without the leading '/'.
604 */
605 if ((dt = fstabsearch(disk)) != NULL) {
606 /* if found then only one parameter (i.e. partition)
607 * is allowed */
608 if (argc >= 1) {
609 (void)fprintf(stderr, "Unknown arguments to dump:");
610 while (argc--)
611 (void)fprintf(stderr, " %s", *argv++);
612 (void)fprintf(stderr, "\n");
613 msg("The ENTIRE dump is aborted.\n");
614 exit(X_STARTUP);
615 }
616 disk = rawname(dt->mnt_fsname);
617 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
618 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
619 } else {
620 #ifdef __linux__
621 #ifdef HAVE_REALPATH
622 if (realpath(disk, pathname) == NULL)
623 #endif
624 strcpy(pathname, disk);
625 /*
626 * The argument could be now a mountpoint of
627 * a filesystem specified in fstab. Search for it.
628 */
629 if ((dt = fstabsearch(pathname)) != NULL) {
630 disk = rawname(dt->mnt_fsname);
631 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
632 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
633 } else {
634 /*
635 * The argument was not found in the fstab
636 * assume that this is a subtree and search for it
637 */
638 dt = fstabsearchdir(pathname, directory);
639 if (dt != NULL) {
640 char name[MAXPATHLEN];
641 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
642 (void)snprintf(name, sizeof(name), "%s (dir %s)",
643 dt->mnt_dir, directory);
644 (void)strncpy(spcl.c_filesys, name, NAMELEN);
645 disk = rawname(dt->mnt_fsname);
646 } else {
647 (void)strncpy(spcl.c_dev, disk, NAMELEN);
648 (void)strncpy(spcl.c_filesys, "an unlisted file system",
649 NAMELEN);
650 }
651 }
652 #else
653 (void)strncpy(spcl.c_dev, disk, NAMELEN);
654 (void)strncpy(spcl.c_filesys, "an unlisted file system",
655 NAMELEN);
656 #endif
657 }
658
659 if (directory[0] != 0) {
660 if (atoi(level) != 0) {
661 msg("Only level 0 dumps are allowed on a subdirectory\n");
662 msg("The ENTIRE dump is aborted.\n");
663 exit(X_STARTUP);
664 }
665 if (uflag) {
666 msg("You can't update the dumpdates file when dumping a subdirectory\n");
667 msg("The ENTIRE dump is aborted.\n");
668 exit(X_STARTUP);
669 }
670 }
671 spcl.c_dev[NAMELEN-1] = '\0';
672 spcl.c_filesys[NAMELEN-1] = '\0';
673 (void)gethostname(spcl.c_host, NAMELEN);
674 spcl.c_host[NAMELEN-1] = '\0';
675 spcl.c_level = atoi(level);
676 spcl.c_type = TS_TAPE;
677 if (!Tflag)
678 getdumptime(uflag); /* dumpdates snarfed */
679
680 if (spcl.c_ddate == 0 && spcl.c_level) {
681 msg("WARNING: There is no inferior level dump on this filesystem\n");
682 msg("WARNING: Assuming a level 0 dump by default\n");
683 level[0] = '0'; level[1] = '\0';
684 spcl.c_level = 0;
685 }
686
687 if (Mflag)
688 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
689 else
690 strncpy(tape, tapeprefix, MAXPATHLEN);
691 tape[MAXPATHLEN - 1] = '\0';
692
693 if (!pipeout) {
694 if (STAT(tape, &statbuf) != -1)
695 fifoout= statbuf.st_mode & S_IFIFO;
696 }
697
698 if (!sizest) {
699
700 msg("Date of this level %s dump: %s", level,
701 ctime4(&spcl.c_date));
702 #ifdef USE_QFA
703 gThisDumpDate = spcl.c_date;
704 #endif
705 if (spcl.c_ddate)
706 msg("Date of last level %s dump: %s", lastlevel,
707 ctime4(&spcl.c_ddate));
708 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
709 if (host)
710 msgtail("to %s on host %s\n", tape, host);
711 else
712 msgtail("to %s\n", tape);
713 } /* end of size estimate */
714
715 #ifdef __linux__
716 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
717 msg("Cannot open %s\n", disk);
718 msg("The ENTIRE dump is aborted.\n");
719 exit(X_STARTUP);
720 }
721 #ifdef BLKFLSBUF
722 (void)ioctl(diskfd, BLKFLSBUF, 0);
723 #endif
724 retval = dump_fs_open(disk, &fs);
725 if (retval) {
726 com_err(disk, retval, "while opening filesystem");
727 if (retval == EXT2_ET_REV_TOO_HIGH)
728 msg("Get a newer version of dump!\n");
729 msg("The ENTIRE dump is aborted.\n");
730 exit(X_STARTUP);
731 }
732 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
733 com_err(disk, retval, "while opening filesystem");
734 msg("Get a newer version of dump!\n");
735 msg("The ENTIRE dump is aborted.\n");
736 exit(X_STARTUP);
737 }
738 /* if no user label specified, use ext2 filesystem label if available */
739 if (spcl.c_label[0] == '\0') {
740 const char *lbl;
741 if ( (lbl = get_device_label(disk)) != NULL) {
742 strncpy(spcl.c_label, lbl, LBLSIZE);
743 spcl.c_label[LBLSIZE-1] = '\0';
744 }
745 else
746 strcpy(spcl.c_label, "none"); /* safe strcpy. */
747 }
748 sync();
749 dev_bsize = DEV_BSIZE;
750 dev_bshift = ffs(dev_bsize) - 1;
751 if (dev_bsize != (1 << dev_bshift))
752 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
753 tp_bshift = ffs(TP_BSIZE) - 1;
754 if (TP_BSIZE != (1 << tp_bshift))
755 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
756 maxino = fs->super->s_inodes_count + 1;
757 spcl.c_flags |= DR_NEWINODEFMT;
758 #else /* __linux __*/
759 if ((diskfd = open(disk, O_RDONLY)) < 0) {
760 msg("Cannot open %s\n", disk);
761 msg("The ENTIRE dump is aborted.\n");
762 exit(X_STARTUP);
763 }
764 sync();
765 sblock = (struct fs *)sblock_buf;
766 bread(SBOFF, (char *) sblock, SBSIZE);
767 if (sblock->fs_magic != FS_MAGIC)
768 quit("bad sblock magic number\n");
769 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
770 dev_bshift = ffs(dev_bsize) - 1;
771 if (dev_bsize != (1 << dev_bshift))
772 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
773 tp_bshift = ffs(TP_BSIZE) - 1;
774 if (TP_BSIZE != (1 << tp_bshift))
775 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
776 #ifdef FS_44INODEFMT
777 if (sblock->fs_inodefmt >= FS_44INODEFMT)
778 spcl.c_flags |= DR_NEWINODEFMT;
779 #endif
780 maxino = sblock->fs_ipg * sblock->fs_ncg;
781 #endif /* __linux__ */
782 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
783 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
784 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
785 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
786 metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
787 if (usedinomap == NULL || dumpdirmap == NULL ||
788 dumpinomap == NULL || metainomap == NULL)
789 quit("out of memory allocating inode maps\n");
790 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
791
792 nonodump = spcl.c_level < honorlevel;
793
794 if (!sizest) {
795 msg("Label: %s\n", spcl.c_label);
796
797 msg("Writing %d Kilobyte records\n", ntrec);
798
799 if (compressed) {
800 if (zipflag == COMPRESS_LZO)
801 msg("Compressing output (lzo)\n");
802 else
803 msg("Compressing output at transformation level %d (%s)\n",
804 compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
805 }
806 }
807
808 #if defined(SIGINFO)
809 (void)signal(SIGINFO, statussig);
810 #endif
811
812 if (!sizest)
813 msg("mapping (Pass I) [regular files]\n");
814 #ifdef __linux__
815 if (directory[0] == 0)
816 anydirskipped = mapfiles(maxino, &tapesize);
817 else {
818 if (LSTAT(pathname, &statbuf) == -1) {
819 msg("File cannot be accessed (%s).\n", pathname);
820 msg("The ENTIRE dump is aborted.\n");
821 exit(X_STARTUP);
822 }
823 filedev = statbuf.st_dev;
824 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
825 anydirskipped = maponefile(maxino, &tapesize,
826 directory);
827 else
828 anydirskipped = mapfilesfromdir(maxino, &tapesize,
829 directory);
830 }
831 while (argc--) {
832 int anydirskipped2;
833 char *p = *argv;
834 /* check if file is available */
835 if (LSTAT(p, &statbuf) == -1) {
836 msg("File cannot be accessed (%s).\n", p);
837 msg("The ENTIRE dump is aborted.\n");
838 exit(X_STARTUP);
839 }
840 /* check if file is on same unix partiton as the first
841 * argument */
842 if (statbuf.st_dev != filedev) {
843 msg("Files are not on same file system (%s).\n", p);
844 msg("The ENTIRE dump is aborted.\n");
845 exit(X_STARTUP);
846 }
847 /* check if file is a directory */
848 if (!(statbuf.st_mode & S_IFDIR))
849 anydirskipped2 = maponefile(maxino, &tapesize,
850 p+strlen(dt->mnt_dir));
851 else
852 /* read directory inodes.
853 * NOTE: nested directories are not recognized
854 * so inodes may be umped twice!
855 */
856 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
857 p+strlen(dt->mnt_dir));
858 if (!anydirskipped)
859 anydirskipped = anydirskipped2;
860 argv++;
861 }
862 #else
863 anydirskipped = mapfiles(maxino, &tapesize);
864 #endif
865
866 if (!sizest)
867 msg("mapping (Pass II) [directories]\n");
868 while (anydirskipped) {
869 anydirskipped = mapdirs(maxino, &tapesize);
870 }
871
872 if (sizest) {
873 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
874 exit(X_FINOK);
875 } /* stop here for size estimate */
876
877 if (pipeout || unlimited) {
878 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
879 msg("estimated %lld blocks.\n", tapesize);
880 } else {
881 double fetapes;
882
883 if (blocksperfiles) {
884 long long tapesize_left;
885
886 tapesize_left = tapesize;
887 fetapes = 0;
888 for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
889 fetapes++;
890 if (tapesize_left > blocksperfiles[i])
891 tapesize_left -= blocksperfiles[i];
892 else
893 tapesize_left = 0;
894 }
895 if (tapesize_left)
896 fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
897 } else if (cartridge) {
898 /* Estimate number of tapes, assuming streaming stops at
899 the end of each block written, and not in mid-block.
900 Assume no erroneous blocks; this can be compensated
901 for with an artificially low tape size. */
902 fetapes =
903 ( (double) tapesize /* blocks */
904 * TP_BSIZE /* bytes/block */
905 * (1.0/density) /* 0.1" / byte " */
906 +
907 (double) tapesize /* blocks */
908 * (1.0/ntrec) /* streaming-stops per block */
909 * 15.48 /* 0.1" / streaming-stop " */
910 ) * (1.0 / tsize ); /* tape / 0.1" " */
911 } else {
912 /* Estimate number of tapes, for old fashioned 9-track
913 tape */
914 int tenthsperirg = (density == 625) ? 3 : 7;
915 fetapes =
916 ( (double) tapesize /* blocks */
917 * TP_BSIZE /* bytes / block */
918 * (1.0/density) /* 0.1" / byte " */
919 +
920 (double) tapesize /* blocks */
921 * (1.0/ntrec) /* IRG's / block */
922 * tenthsperirg /* 0.1" / IRG " */
923 ) * (1.0 / tsize ); /* tape / 0.1" " */
924 }
925 etapes = fetapes; /* truncating assignment */
926 etapes++;
927 /* count the dumped inodes map on each additional tape */
928 tapesize += (etapes - 1) *
929 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
930 tapesize += etapes + ntrec; /* headers + trailer blks */
931 msg("estimated %lld blocks on %3.2f tape(s).\n",
932 tapesize, fetapes);
933 }
934
935 #ifdef USE_QFA
936 if (tapepos) {
937 msg("writing QFA positions to %s\n", gTapeposfile);
938 if ((gTapeposfd = open(gTapeposfile,
939 O_WRONLY|O_CREAT|O_TRUNC,
940 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
941 | S_IROTH | S_IWOTH)) < 0)
942 quit("can't open tapeposfile\n");
943 /* print QFA-file header */
944 snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
945 gTps[sizeof(gTps) - 1] = '\0';
946 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
947 quit("can't write tapeposfile\n");
948 sprintf(gTps, "ino\ttapeno\ttapepos\n");
949 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
950 quit("can't write tapeposfile\n");
951 }
952 #endif /* USE_QFA */
953
954 /*
955 * Allocate tape buffer.
956 */
957 if (!alloctape())
958 quit(
959 "can't allocate tape buffers - try a smaller blocking factor.\n");
960
961 startnewtape(1);
962 tstart_writing = time(NULL);
963 dumpmap(usedinomap, TS_CLRI, maxino - 1);
964
965 msg("dumping (Pass III) [directories]\n");
966 dirty = 0; /* XXX just to get gcc to shut up */
967 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
968 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
969 dirty = *map++;
970 else
971 dirty >>= 1;
972 if ((dirty & 1) == 0)
973 continue;
974 /*
975 * Skip directory inodes deleted and maybe reallocated
976 */
977 dp = getino(ino);
978 if ((dp->di_mode & IFMT) != IFDIR)
979 continue;
980 #ifdef __linux__
981 /*
982 * Skip directory inodes deleted and not yes reallocated...
983 */
984 if (dp->di_nlink == 0 || dp->di_dtime != 0)
985 continue;
986 if (vflag)
987 msg("dumping directory inode %lu\n", ino);
988 (void)dumpdirino(dp, ino);
989 #else
990 (void)dumpino(dp, ino);
991 #endif
992 }
993
994 msg("dumping (Pass IV) [regular files]\n");
995 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
996 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
997 dirty = *map++;
998 else
999 dirty >>= 1;
1000 if ((dirty & 1) == 0)
1001 continue;
1002 /*
1003 * Skip inodes deleted and reallocated as directories.
1004 */
1005 dp = getino(ino);
1006 if ((dp->di_mode & IFMT) == IFDIR)
1007 continue;
1008 #ifdef __linux__
1009 /*
1010 * No need to check here for deleted and not yet reallocated
1011 * inodes since this is done in dumpino().
1012 */
1013 #endif
1014 if (vflag) {
1015 if (mflag && TSTINO(ino, metainomap))
1016 msg("dumping regular inode %lu (meta only)\n", ino);
1017 else
1018 msg("dumping regular inode %lu\n", ino);
1019 }
1020 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
1021 }
1022
1023 tend_writing = time(NULL);
1024 spcl.c_type = TS_END;
1025
1026 if (Afile >= 0) {
1027 volinfo[1] = ROOTINO;
1028 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1029 spcl.c_flags |= DR_INODEINFO;
1030 }
1031
1032 /*
1033 * Finish off the current tape record with trailer blocks, to ensure
1034 * at least the data in the last partial record makes it to tape.
1035 * Also make sure we write at least 1 trailer block.
1036 */
1037 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1038 writeheader(maxino - 1);
1039
1040 tnow = trewind();
1041
1042 if (pipeout || fifoout)
1043 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1044 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1045 else
1046 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1047 spcl.c_tapea,
1048 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1049 spcl.c_volume);
1050
1051 /* report dump performance, avoid division by zero */
1052 if (tend_writing - tstart_writing == 0)
1053 msg("finished in less than a second\n");
1054 else
1055 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1056 tend_writing - tstart_writing,
1057 spcl.c_tapea / (tend_writing - tstart_writing));
1058
1059 putdumptime();
1060 msg("Date of this level %s dump: %s", level,
1061 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1062 msg("Date this dump completed: %s", ctime(&tnow));
1063
1064 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1065 if (compressed) {
1066 long tapekb = bytes_written / 1024;
1067 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1068 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1069 spcl.c_tapea, tapekb, rate);
1070 }
1071
1072 if (Afile >= 0)
1073 msg("Archiving dump to %s\n", Apath);
1074
1075 broadcast("DUMP IS DONE!\7\7\n");
1076 msg("DUMP IS DONE\n");
1077 Exit(X_FINOK);
1078 /* NOTREACHED */
1079 return 0; /* gcc - shut up */
1080 }
1081
1082 static void
1083 usage(void)
1084 {
1085 char white[MAXPATHLEN];
1086 const char *ext2ver, *ext2date;
1087
1088 memset(white, ' ', MAXPATHLEN);
1089 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1090
1091 #ifdef __linux__
1092 ext2fs_get_library_version(&ext2ver, &ext2date);
1093 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1094 __progname, _DUMP_VERSION, ext2ver, ext2date);
1095 #else
1096 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1097 #endif
1098 fprintf(stderr,
1099 "usage:\t%s [-level#] [-ac"
1100 #ifdef KERBEROS
1101 "k"
1102 #endif
1103 "mMnqSuv"
1104 "] [-A file] [-B records] [-b blocksize]\n"
1105 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1106 "\t%s [-f file] [-h level] [-I nr errors] "
1107 #ifdef HAVE_BZLIB
1108 "[-j zlevel] "
1109 #endif
1110 #ifdef USE_QFA
1111 "[-Q file]\n"
1112 #endif
1113 "\t%s [-s feet] "
1114 "[-T date] "
1115 #ifdef HAVE_LZO
1116 "[-y] "
1117 #endif
1118 #ifdef HAVE_ZLIB
1119 "[-z zlevel] "
1120 #endif
1121 "filesystem\n"
1122 "\t%s [-W | -w]\n",
1123 __progname, white, white, white, __progname);
1124 exit(X_STARTUP);
1125 }
1126
1127 /*
1128 * Pick up a numeric argument. It must be nonnegative and in the given
1129 * range (except that a vmax of 0 means unlimited).
1130 */
1131 static long
1132 numarg(const char *meaning, long vmin, long vmax)
1133 {
1134 char *p;
1135 long val;
1136
1137 val = strtol(optarg, &p, 10);
1138 if (*p)
1139 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1140 if (val < vmin || (vmax && val > vmax))
1141 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1142 return (val);
1143 }
1144
1145 /*
1146 * The same as numarg, just that it expects a comma separated list of numbers
1147 * and returns an array of longs with the first element containing the number
1148 * values in that array.
1149 */
1150 static long *
1151 numlistarg(const char *meaning, long vmin, long vmax)
1152 {
1153 char *p;
1154 long *vals,*curval;
1155 long valnum;
1156
1157 p = optarg;
1158 vals = NULL;
1159 valnum = 0;
1160 do {
1161 valnum++;
1162 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1163 errx(X_STARTUP, "allocating memory failed");
1164 curval = vals + valnum;
1165 *curval = strtol(p, &p, 10);
1166 if (*p && *p!=',')
1167 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1168 if (*curval < vmin || (vmax && *curval > vmax))
1169 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1170 *vals = valnum;
1171 if (*p) p++;
1172 } while(*p);
1173 return (vals);
1174 }
1175
1176 void
1177 sig(int signo)
1178 {
1179 switch(signo) {
1180 case SIGALRM:
1181 case SIGBUS:
1182 case SIGFPE:
1183 case SIGHUP:
1184 case SIGTERM:
1185 case SIGTRAP:
1186 if (pipeout || fifoout)
1187 quit("Signal on pipe: cannot recover\n");
1188 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1189 (void)fflush(stderr);
1190 (void)fflush(stdout);
1191 close_rewind();
1192 exit(X_REWRITE);
1193 /* NOTREACHED */
1194 case SIGSEGV:
1195 msg("SIGSEGV: ABORTING!\n");
1196 (void)signal(SIGSEGV, SIG_DFL);
1197 (void)kill(0, SIGSEGV);
1198 /* NOTREACHED */
1199 }
1200 }
1201
1202 const char *
1203 rawname(const char *cp)
1204 {
1205 #ifdef __linux__
1206 return cp;
1207 #else /* __linux__ */
1208 static char rawbuf[MAXPATHLEN];
1209 char *dp = strrchr(cp, '/');
1210
1211 if (dp == NULL)
1212 return (NULL);
1213 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1214 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1215 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1216 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1217 return (rawbuf);
1218 #endif /* __linux__ */
1219 }
1220
1221 /*
1222 * obsolete --
1223 * Change set of key letters and ordered arguments into something
1224 * getopt(3) will like.
1225 */
1226 static void
1227 obsolete(int *argcp, char **argvp[])
1228 {
1229 int argc, flags;
1230 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1231
1232 /* Setup. */
1233 argv = *argvp;
1234 argc = *argcp;
1235
1236 /* Return if no arguments or first argument has leading dash. */
1237 ap = argv[1];
1238 if (argc == 1 || *ap == '-')
1239 return;
1240
1241 /* Allocate space for new arguments. */
1242 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1243 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1244 err(X_STARTUP, "malloc new args");
1245
1246 *nargv++ = *argv;
1247 argv += 2;
1248
1249 for (flags = 0; *ap; ++ap) {
1250 switch (*ap) {
1251 case 'A':
1252 case 'B':
1253 case 'b':
1254 case 'd':
1255 case 'D':
1256 case 'e':
1257 case 'E':
1258 case 'f':
1259 case 'F':
1260 case 'h':
1261 case 'L':
1262 case 'Q':
1263 case 's':
1264 case 'T':
1265 if (*argv == NULL) {
1266 warnx("option requires an argument -- %c", *ap);
1267 usage();
1268 }
1269 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1270 err(X_STARTUP, "malloc arg");
1271 nargv[0][0] = '-';
1272 nargv[0][1] = *ap;
1273 (void)strcpy(&nargv[0][2], *argv);
1274 ++argv;
1275 ++nargv;
1276 break;
1277 default:
1278 if (!flags) {
1279 *p++ = '-';
1280 flags = 1;
1281 }
1282 *p++ = *ap;
1283 break;
1284 }
1285 }
1286
1287 /* Terminate flags. */
1288 if (flags) {
1289 *p = '\0';
1290 *nargv++ = flagsp;
1291 }
1292
1293 /* Copy remaining arguments. */
1294 while ((*nargv++ = *argv++));
1295
1296 /* Update argument count. */
1297 *argcp = nargv - *argvp - 1;
1298 }
1299
1300 /*
1301 * This tests whether an inode is in the exclude bitmap
1302 */
1303 int
1304 exclude_ino(dump_ino_t ino)
1305 {
1306 /* if the inode exclude bitmap exists and covers given inode */
1307 if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1308 /* then check this inode against it */
1309 int idx = iexclude_bitmap[ino / 8];
1310 if (idx & (1 << (ino % 8)))
1311 return 1;
1312 }
1313 return 0;
1314 }
1315
1316 /*
1317 * This adds an inode to the exclusion bitmap if it isn't already there
1318 */
1319 void
1320 do_exclude_ino(dump_ino_t ino, const char *reason)
1321 {
1322 if (exclude_ino(ino))
1323 return;
1324
1325 if (vflag) {
1326 if (reason)
1327 msg("Excluding inode %u (%s) from dump\n", ino, reason);
1328 else
1329 msg("Excluding inode %u from dump\n", ino);
1330 }
1331
1332 /* check for enough mem; initialize */
1333 if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1334 if (iexclude_bitmap_bytes == 0) {
1335 unsigned int j;
1336 iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1337 iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1338 if (iexclude_bitmap == NULL) {
1339 msg("allocating memory failed\n");
1340 exit(X_STARTUP);
1341 }
1342 for (j = 0; j < iexclude_bitmap_bytes; j++)
1343 iexclude_bitmap[j] = 0;
1344 }
1345 else {
1346 unsigned int oldsize = iexclude_bitmap_bytes;
1347 iexclude_bitmap_bytes *=
1348 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1349 iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1350 iexclude_bitmap_bytes);
1351 if (iexclude_bitmap == NULL) {
1352 msg("allocating memory failed\n");
1353 exit(X_STARTUP);
1354 }
1355 for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1356 iexclude_bitmap[oldsize] = 0;
1357 }
1358 }
1359
1360 iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1361 }
1362
1363 static void
1364 do_exclude_ino_str(char * ino) {
1365 char *r;
1366 unsigned long inod;
1367
1368 inod = strtoul(ino, &r, 10);
1369 if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1370 msg("Invalid inode argument %s\n", ino);
1371 msg("The ENTIRE dump is aborted.\n");
1372 exit(X_STARTUP);
1373 }
1374 do_exclude_ino(inod, NULL);
1375 }
1376
1377 /*
1378 * This reads a file containing one inode number per line and exclude them all
1379 */
1380 static void
1381 do_exclude_from_file(char *file) {
1382 FILE *f;
1383 char *p, fname[MAXPATHLEN];
1384
1385
1386 if (!( f = fopen(file, "r")) ) {
1387 msg("Cannot open file for reading: %s\n", file);
1388 msg("The ENTIRE dump is aborted.\n");
1389 exit(X_STARTUP);
1390 }
1391 while (( p = fgets(fname, MAXPATHLEN, f))) {
1392 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1393 *(p + strlen(p) - 1) = '\0';
1394 if ( !*p ) /* skip empty lines */
1395 continue;
1396 do_exclude_ino_str(p);
1397 }
1398 fclose(f);
1399 }
1400
1401 static void incompat_flags(int cond, char flag1, char flag2) {
1402 if (cond) {
1403 msg("You cannot use the %c and %c flags together.\n",
1404 flag1, flag2);
1405 msg("The ENTIRE dump is aborted.\n");
1406 exit(X_STARTUP);
1407 }
1408 }
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