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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 1.93 2004/06/02 09:22:49 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
243 if (argc < 2)
244 usage();
245
246 obsolete(&argc, &argv);
247
248 #ifdef USE_QFA
249 gTapeposfd = -1;
250 #endif /* USE_QFA */
251
252 while ((ch = getopt(argc, argv,
253 "0123456789A:aB:b:cd:D:e:E:f:F:h:I:"
254 #ifdef HAVE_BZLIB
255 "j::"
256 #endif
257 "L:"
258 #ifdef KERBEROS
259 "k"
260 #endif
261 "mMnq"
262 #ifdef USE_QFA
263 "Q:"
264 #endif
265 "s:ST:uvWw"
266 #ifdef HAVE_LZO
267 "y"
268 #endif
269 #ifdef HAVE_ZLIB
270 "z::"
271 #endif
272 )) != -1)
273 switch (ch) {
274 /* dump level */
275 case '0': case '1': case '2': case '3': case '4':
276 case '5': case '6': case '7': case '8': case '9':
277 if ((pch >= '0') && (pch <= '9') && (strlen(level) < NUM_STR_SIZE))
278 level[strlen(level)] = ch;
279 else
280 level[0] = ch;
281 pch = ch;
282 break;
283
284 case 'A': /* archive file */
285 Apath = optarg;
286 break;
287
288 case 'a': /* `auto-size', Write to EOM. */
289 unlimited = 1;
290 aflag = 1;
291 break;
292
293 case 'B': /* blocks per output file */
294 unlimited = 0;
295 blocksperfiles = numlistarg("number of blocks per file",
296 1L, 0L);
297 break;
298
299 case 'b': /* blocks per tape write */
300 ntrec = numarg("number of blocks per write",
301 1L, 1048576L);
302 if (ntrec > maxbsize/1024) {
303 msg("Please choose a blocksize <= %dkB\n",
304 maxbsize/1024);
305 msg("The ENTIRE dump is aborted.\n");
306 exit(X_STARTUP);
307 }
308 bflag = 1;
309 break;
310
311 case 'c': /* Tape is cart. not 9-track */
312 unlimited = 0;
313 cartridge = 1;
314 break;
315
316 case 'd': /* density, in bits per inch */
317 unlimited = 0;
318 density = numarg("density", 10L, 327670L) / 10;
319 if (density >= 625 && !bflag)
320 ntrec = HIGHDENSITYTREC;
321 break;
322
323 case 'D': /* path of dumpdates file */
324 dumpdates = optarg;
325 break;
326
327 /* 04-Feb-00 ILC */
328 case 'e': /* exclude an inode */
329 {
330 char *p = optarg, *q;
331 while ((q = strchr(p, ','))) {
332 *q = '\0';
333 do_exclude_ino_str(p);
334 p = q + 1;
335 }
336 do_exclude_ino_str(p);
337 }
338 break;
339
340 case 'E': /* exclude inodes read from file */
341 do_exclude_from_file(optarg);
342 break;
343
344 case 'f': /* output file */
345 tapeprefix = optarg;
346 break;
347
348 case 'F': /* end of tape script */
349 eot_script = optarg;
350 break;
351
352 case 'h':
353 honorlevel = numarg("honor level", 0L, 10L);
354 break;
355
356 #ifdef HAVE_BZLIB
357 case 'j':
358 compressed = 2;
359 zipflag = COMPRESS_BZLIB;
360 if (optarg)
361 compressed = numarg("compress level", 1L, 9L);
362 break;
363 #endif /* HAVE_BZLIB */
364
365 case 'I':
366 breademax =
367 numarg ("number of errors to ignore", 0L, 0L);
368 break;
369
370 #ifdef KERBEROS
371 case 'k':
372 dokerberos = 1;
373 break;
374 #endif
375
376 case 'L':
377 /*
378 * Note that although there are LBLSIZE characters,
379 * the last must be '\0', so the limit on strlen()
380 * is really LBLSIZE-1.
381 */
382 strncpy(spcl.c_label, optarg, LBLSIZE);
383 spcl.c_label[LBLSIZE-1] = '\0';
384 if (strlen(optarg) > LBLSIZE-1) {
385 msg(
386 "WARNING Label `%s' is larger than limit of %d characters.\n",
387 optarg, LBLSIZE-1);
388 msg("WARNING: Using truncated label `%s'.\n",
389 spcl.c_label);
390 }
391 break;
392
393 case 'm': /* metadata only flag */
394 mflag = 1;
395 break;
396
397 case 'M': /* multi-volume flag */
398 Mflag = 1;
399 break;
400
401 case 'n': /* notify operators */
402 notify = 1;
403 break;
404
405 case 'q':
406 qflag = 1;
407 break;
408
409 #ifdef USE_QFA
410 case 'Q': /* create tapeposfile */
411 gTapeposfile = optarg;
412 tapepos = 1;
413 break;
414 #endif /* USE_QFA */
415
416 case 's': /* tape size, feet */
417 unlimited = 0;
418 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
419 break;
420
421 case 'S':
422 sizest = 1; /* return size estimate only */
423 break;
424
425 case 'T': /* time of last dump */
426 spcl.c_ddate = unctime(optarg);
427 if (spcl.c_ddate < 0) {
428 msg("bad time \"%s\"\n", optarg);
429 msg("The ENTIRE dump is aborted.\n");
430 exit(X_STARTUP);
431 }
432 Tflag = 1;
433 lastlevel[0] = '?'; lastlevel[1] = '\0';
434 break;
435
436 case 'u': /* update dumpdates */
437 uflag = 1;
438 break;
439
440 case 'v': /* verbose */
441 vflag = 1;
442 break;
443
444 case 'W': /* what to do */
445 case 'w':
446 lastdump(ch);
447 exit(X_FINOK); /* do nothing else */
448 #ifdef HAVE_LZO
449 case 'y':
450 compressed = 2;
451 zipflag = COMPRESS_LZO;
452 break;
453 #endif /* HAVE_LZO */
454
455 #ifdef HAVE_ZLIB
456 case 'z':
457 compressed = 2;
458 zipflag = COMPRESS_ZLIB;
459 if (optarg)
460 compressed = numarg("compress level", 1L, 9L);
461 break;
462 #endif /* HAVE_ZLIB */
463
464 default:
465 usage();
466 }
467 argc -= optind;
468 argv += optind;
469
470 if (argc < 1) {
471 msg("Must specify disk or filesystem\n");
472 msg("The ENTIRE dump is aborted.\n");
473 exit(X_STARTUP);
474 }
475 diskparam = *argv++;
476 if (strlen(diskparam) >= MAXPATHLEN) {
477 msg("Disk or filesystem name too long: %s\n", diskparam);
478 msg("The ENTIRE dump is aborted.\n");
479 exit(X_STARTUP);
480 }
481 argc--;
482 incompat_flags(Tflag && uflag, 'T', 'u');
483 incompat_flags(aflag && blocksperfiles, 'a', 'B');
484 incompat_flags(aflag && cartridge, 'a', 'c');
485 incompat_flags(aflag && density, 'a', 'd');
486 incompat_flags(aflag && tsize, 'a', 's');
487
488 if (strcmp(tapeprefix, "-") == 0) {
489 pipeout++;
490 tapeprefix = "standard output";
491 }
492
493 if (blocksperfiles && !compressed)
494 for (i = 1; i <= *blocksperfiles; i++)
495 blocksperfiles[i] = blocksperfiles[i] / ntrec * ntrec; /* round down */
496 else if (!unlimited) {
497 /*
498 * Determine how to default tape size and density
499 *
500 * density tape size
501 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
502 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
503 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
504 * (450*4 - slop)
505 * hilit19 hits again: "
506 */
507 if (density == 0)
508 density = cartridge ? 100 : 160;
509 if (tsize == 0)
510 tsize = cartridge ? 1700L*120L : 2300L*120L;
511 }
512
513 {
514 int i;
515 char *n;
516
517 if ((n = strchr(tapeprefix, ':'))) {
518 for (i = 0; i < (n - tapeprefix); i++) {
519 if (tapeprefix[i] == '/')
520 break;
521 }
522 if (tapeprefix[i] != '/') {
523 host = tapeprefix;
524 tapeprefix = strchr(host, ':');
525 *tapeprefix++ = '\0';
526 #ifdef RDUMP
527 if (index(tapeprefix, '\n')) {
528 msg("invalid characters in tape\n");
529 msg("The ENTIRE dump is aborted.\n");
530 exit(X_STARTUP);
531 }
532 if (rmthost(host) == 0)
533 exit(X_STARTUP);
534 #else
535 msg("remote dump not enabled\n");
536 msg("The ENTIRE dump is aborted.\n");
537 exit(X_STARTUP);
538 #endif
539 }
540 }
541 }
542
543 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
544 if (Apath && (Afile = open(Apath, O_WRONLY|O_CREAT|O_TRUNC,
545 S_IRUSR | S_IWUSR | S_IRGRP |
546 S_IWGRP | S_IROTH | S_IWOTH)) < 0) {
547 msg("Cannot open %s for writing: %s\n",
548 optarg, strerror(errno));
549 msg("The ENTIRE dump is aborted.\n");
550 exit(X_STARTUP);
551 }
552
553 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
554 signal(SIGHUP, sig);
555 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
556 signal(SIGTRAP, sig);
557 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
558 signal(SIGFPE, sig);
559 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
560 signal(SIGBUS, sig);
561 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
562 signal(SIGSEGV, sig);
563 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
564 signal(SIGTERM, sig);
565 if (signal(SIGINT, interrupt) == SIG_IGN)
566 signal(SIGINT, SIG_IGN);
567 #ifdef SIGXCPU
568 signal(SIGXCPU, SIG_IGN);
569 #endif /* SIGXCPU */
570 #ifdef SIGXFSZ
571 signal(SIGXFSZ, SIG_IGN);
572 #endif /* SIGXFSZ */
573
574 set_operators(); /* /etc/group snarfed */
575 getfstab(); /* /etc/fstab snarfed */
576
577 /*
578 * disk may end in / and this can confuse
579 * fstabsearch.
580 */
581 i = strlen(diskparam) - 1;
582 if (i > 1 && diskparam[i] == '/')
583 if (!(i == 6 && !strcmp(diskparam, "LABEL=/")))
584 diskparam[i] = '\0';
585
586 disk = get_device_name(diskparam);
587 if (!disk) { /* null means the disk is some form
588 of LABEL= or UID= but it was not
589 found */
590 msg("Cannot find a disk having %s\n", diskparam);
591 msg("The ENTIRE dump is aborted.\n");
592 exit(X_STARTUP);
593 }
594 /*
595 * disk can be either the full special file name,
596 * the suffix of the special file name,
597 * the special name missing the leading '/',
598 * the file system name with or without the leading '/'.
599 */
600 if ((dt = fstabsearch(disk)) != NULL) {
601 /* if found then only one parameter (i.e. partition)
602 * is allowed */
603 if (argc >= 1) {
604 (void)fprintf(stderr, "Unknown arguments to dump:");
605 while (argc--)
606 (void)fprintf(stderr, " %s", *argv++);
607 (void)fprintf(stderr, "\n");
608 msg("The ENTIRE dump is aborted.\n");
609 exit(X_STARTUP);
610 }
611 disk = rawname(dt->mnt_fsname);
612 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
613 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
614 } else {
615 #ifdef __linux__
616 #ifdef HAVE_REALPATH
617 if (realpath(disk, pathname) == NULL)
618 #endif
619 strcpy(pathname, disk);
620 /*
621 * The argument could be now a mountpoint of
622 * a filesystem specified in fstab. Search for it.
623 */
624 if ((dt = fstabsearch(pathname)) != NULL) {
625 disk = rawname(dt->mnt_fsname);
626 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
627 (void)strncpy(spcl.c_filesys, dt->mnt_dir, NAMELEN);
628 } else {
629 /*
630 * The argument was not found in the fstab
631 * assume that this is a subtree and search for it
632 */
633 dt = fstabsearchdir(pathname, directory);
634 if (dt != NULL) {
635 char name[MAXPATHLEN];
636 (void)strncpy(spcl.c_dev, dt->mnt_fsname, NAMELEN);
637 (void)snprintf(name, sizeof(name), "%s (dir %s)",
638 dt->mnt_dir, directory);
639 (void)strncpy(spcl.c_filesys, name, NAMELEN);
640 disk = rawname(dt->mnt_fsname);
641 } else {
642 (void)strncpy(spcl.c_dev, disk, NAMELEN);
643 (void)strncpy(spcl.c_filesys, "an unlisted file system",
644 NAMELEN);
645 }
646 }
647 #else
648 (void)strncpy(spcl.c_dev, disk, NAMELEN);
649 (void)strncpy(spcl.c_filesys, "an unlisted file system",
650 NAMELEN);
651 #endif
652 }
653
654 if (directory[0] != 0) {
655 if (atoi(level) != 0) {
656 msg("Only level 0 dumps are allowed on a subdirectory\n");
657 msg("The ENTIRE dump is aborted.\n");
658 exit(X_STARTUP);
659 }
660 if (uflag) {
661 msg("You can't update the dumpdates file when dumping a subdirectory\n");
662 msg("The ENTIRE dump is aborted.\n");
663 exit(X_STARTUP);
664 }
665 }
666 spcl.c_dev[NAMELEN-1] = '\0';
667 spcl.c_filesys[NAMELEN-1] = '\0';
668 (void)gethostname(spcl.c_host, NAMELEN);
669 spcl.c_host[NAMELEN-1] = '\0';
670 spcl.c_level = atoi(level);
671 spcl.c_type = TS_TAPE;
672 if (!Tflag)
673 getdumptime(uflag); /* dumpdates snarfed */
674
675 if (spcl.c_ddate == 0 && spcl.c_level) {
676 msg("WARNING: There is no inferior level dump on this filesystem\n");
677 msg("WARNING: Assuming a level 0 dump by default\n");
678 level[0] = '0'; level[1] = '\0';
679 spcl.c_level = 0;
680 }
681
682 if (Mflag)
683 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
684 else
685 strncpy(tape, tapeprefix, MAXPATHLEN);
686 tape[MAXPATHLEN - 1] = '\0';
687
688 if (!pipeout) {
689 if (STAT(tape, &statbuf) != -1)
690 fifoout= statbuf.st_mode & S_IFIFO;
691 }
692
693 if (!sizest) {
694
695 msg("Date of this level %s dump: %s", level,
696 ctime4(&spcl.c_date));
697 #ifdef USE_QFA
698 gThisDumpDate = spcl.c_date;
699 #endif
700 if (spcl.c_ddate)
701 msg("Date of last level %s dump: %s", lastlevel,
702 ctime4(&spcl.c_ddate));
703 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
704 if (host)
705 msgtail("to %s on host %s\n", tape, host);
706 else
707 msgtail("to %s\n", tape);
708 } /* end of size estimate */
709
710 #ifdef __linux__
711 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
712 msg("Cannot open %s\n", disk);
713 msg("The ENTIRE dump is aborted.\n");
714 exit(X_STARTUP);
715 }
716 #ifdef BLKFLSBUF
717 (void)ioctl(diskfd, BLKFLSBUF, 0);
718 #endif
719 retval = dump_fs_open(disk, &fs);
720 if (retval) {
721 com_err(disk, retval, "while opening filesystem");
722 if (retval == EXT2_ET_REV_TOO_HIGH)
723 msg("Get a newer version of dump!\n");
724 msg("The ENTIRE dump is aborted.\n");
725 exit(X_STARTUP);
726 }
727 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
728 com_err(disk, retval, "while opening filesystem");
729 msg("Get a newer version of dump!\n");
730 msg("The ENTIRE dump is aborted.\n");
731 exit(X_STARTUP);
732 }
733 /* if no user label specified, use ext2 filesystem label if available */
734 if (spcl.c_label[0] == '\0') {
735 const char *lbl;
736 if ( (lbl = get_device_label(disk)) != NULL) {
737 strncpy(spcl.c_label, lbl, LBLSIZE);
738 spcl.c_label[LBLSIZE-1] = '\0';
739 }
740 else
741 strcpy(spcl.c_label, "none"); /* safe strcpy. */
742 }
743 sync();
744 dev_bsize = DEV_BSIZE;
745 dev_bshift = ffs(dev_bsize) - 1;
746 if (dev_bsize != (1 << dev_bshift))
747 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
748 tp_bshift = ffs(TP_BSIZE) - 1;
749 if (TP_BSIZE != (1 << tp_bshift))
750 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
751 maxino = fs->super->s_inodes_count + 1;
752 spcl.c_flags |= DR_NEWINODEFMT;
753 #else /* __linux __*/
754 if ((diskfd = open(disk, O_RDONLY)) < 0) {
755 msg("Cannot open %s\n", disk);
756 msg("The ENTIRE dump is aborted.\n");
757 exit(X_STARTUP);
758 }
759 sync();
760 sblock = (struct fs *)sblock_buf;
761 bread(SBOFF, (char *) sblock, SBSIZE);
762 if (sblock->fs_magic != FS_MAGIC)
763 quit("bad sblock magic number\n");
764 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
765 dev_bshift = ffs(dev_bsize) - 1;
766 if (dev_bsize != (1 << dev_bshift))
767 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
768 tp_bshift = ffs(TP_BSIZE) - 1;
769 if (TP_BSIZE != (1 << tp_bshift))
770 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
771 #ifdef FS_44INODEFMT
772 if (sblock->fs_inodefmt >= FS_44INODEFMT)
773 spcl.c_flags |= DR_NEWINODEFMT;
774 #endif
775 maxino = sblock->fs_ipg * sblock->fs_ncg;
776 #endif /* __linux__ */
777 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
778 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
779 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
780 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
781 metainomap = (char *)calloc((unsigned) mapsize, sizeof(char));
782 if (usedinomap == NULL || dumpdirmap == NULL ||
783 dumpinomap == NULL || metainomap == NULL)
784 quit("out of memory allocating inode maps\n");
785 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
786
787 nonodump = spcl.c_level < honorlevel;
788
789 if (!sizest) {
790 msg("Label: %s\n", spcl.c_label);
791
792 msg("Writing %d Kilobyte records\n", ntrec);
793
794 if (compressed) {
795 if (zipflag == COMPRESS_LZO)
796 msg("Compressing output (lzo)\n");
797 else
798 msg("Compressing output at compression level %d (%s)\n",
799 compressed, zipflag == COMPRESS_ZLIB ? "zlib" : "bzlib");
800 }
801 }
802
803 #if defined(SIGINFO)
804 (void)signal(SIGINFO, statussig);
805 #endif
806
807 if (!sizest)
808 msg("mapping (Pass I) [regular files]\n");
809 #ifdef __linux__
810 if (directory[0] == 0)
811 anydirskipped = mapfiles(maxino, &tapesize);
812 else {
813 if (LSTAT(pathname, &statbuf) == -1) {
814 msg("File cannot be accessed (%s).\n", pathname);
815 msg("The ENTIRE dump is aborted.\n");
816 exit(X_STARTUP);
817 }
818 filedev = statbuf.st_dev;
819 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
820 anydirskipped = maponefile(maxino, &tapesize,
821 directory);
822 else
823 anydirskipped = mapfilesfromdir(maxino, &tapesize,
824 directory);
825 }
826 while (argc--) {
827 int anydirskipped2;
828 char *p = *argv;
829 /* check if file is available */
830 if (LSTAT(p, &statbuf) == -1) {
831 msg("File cannot be accessed (%s).\n", p);
832 msg("The ENTIRE dump is aborted.\n");
833 exit(X_STARTUP);
834 }
835 /* check if file is on same unix partiton as the first
836 * argument */
837 if (statbuf.st_dev != filedev) {
838 msg("Files are not on same file system (%s).\n", p);
839 msg("The ENTIRE dump is aborted.\n");
840 exit(X_STARTUP);
841 }
842 /* check if file is a directory */
843 if (!(statbuf.st_mode & S_IFDIR))
844 anydirskipped2 = maponefile(maxino, &tapesize,
845 p+strlen(dt->mnt_dir));
846 else
847 /* read directory inodes.
848 * NOTE: nested directories are not recognized
849 * so inodes may be umped twice!
850 */
851 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
852 p+strlen(dt->mnt_dir));
853 if (!anydirskipped)
854 anydirskipped = anydirskipped2;
855 argv++;
856 }
857 #else
858 anydirskipped = mapfiles(maxino, &tapesize);
859 #endif
860
861 if (!sizest)
862 msg("mapping (Pass II) [directories]\n");
863 while (anydirskipped) {
864 anydirskipped = mapdirs(maxino, &tapesize);
865 }
866
867 if (sizest) {
868 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
869 exit(X_FINOK);
870 } /* stop here for size estimate */
871
872 if (pipeout || unlimited) {
873 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
874 msg("estimated %ld blocks.\n", tapesize);
875 } else {
876 double fetapes;
877
878 if (blocksperfiles) {
879 long tapesize_left;
880
881 tapesize_left = tapesize;
882 fetapes = 0;
883 for (i = 1; i < *blocksperfiles && tapesize_left; i++) {
884 fetapes++;
885 if (tapesize_left > blocksperfiles[i])
886 tapesize_left -= blocksperfiles[i];
887 else
888 tapesize_left = 0;
889 }
890 if (tapesize_left)
891 fetapes += (double)tapesize_left / blocksperfiles[*blocksperfiles];
892 } else if (cartridge) {
893 /* Estimate number of tapes, assuming streaming stops at
894 the end of each block written, and not in mid-block.
895 Assume no erroneous blocks; this can be compensated
896 for with an artificially low tape size. */
897 fetapes =
898 ( (double) tapesize /* blocks */
899 * TP_BSIZE /* bytes/block */
900 * (1.0/density) /* 0.1" / byte " */
901 +
902 (double) tapesize /* blocks */
903 * (1.0/ntrec) /* streaming-stops per block */
904 * 15.48 /* 0.1" / streaming-stop " */
905 ) * (1.0 / tsize ); /* tape / 0.1" " */
906 } else {
907 /* Estimate number of tapes, for old fashioned 9-track
908 tape */
909 int tenthsperirg = (density == 625) ? 3 : 7;
910 fetapes =
911 ( (double) tapesize /* blocks */
912 * TP_BSIZE /* bytes / block */
913 * (1.0/density) /* 0.1" / byte " */
914 +
915 (double) tapesize /* blocks */
916 * (1.0/ntrec) /* IRG's / block */
917 * tenthsperirg /* 0.1" / IRG " */
918 ) * (1.0 / tsize ); /* tape / 0.1" " */
919 }
920 etapes = fetapes; /* truncating assignment */
921 etapes++;
922 /* count the dumped inodes map on each additional tape */
923 tapesize += (etapes - 1) *
924 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
925 tapesize += etapes + ntrec; /* headers + trailer blks */
926 msg("estimated %ld blocks on %3.2f tape(s).\n",
927 tapesize, fetapes);
928 }
929
930 #ifdef USE_QFA
931 if (tapepos) {
932 msg("writing QFA positions to %s\n", gTapeposfile);
933 if ((gTapeposfd = open(gTapeposfile,
934 O_WRONLY|O_CREAT|O_TRUNC,
935 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
936 | S_IROTH | S_IWOTH)) < 0)
937 quit("can't open tapeposfile\n");
938 /* print QFA-file header */
939 snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
940 gTps[sizeof(gTps) - 1] = '\0';
941 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
942 quit("can't write tapeposfile\n");
943 sprintf(gTps, "ino\ttapeno\ttapepos\n");
944 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
945 quit("can't write tapeposfile\n");
946 }
947 #endif /* USE_QFA */
948
949 /*
950 * Allocate tape buffer.
951 */
952 if (!alloctape())
953 quit(
954 "can't allocate tape buffers - try a smaller blocking factor.\n");
955
956 startnewtape(1);
957 tstart_writing = time(NULL);
958 dumpmap(usedinomap, TS_CLRI, maxino - 1);
959
960 msg("dumping (Pass III) [directories]\n");
961 dirty = 0; /* XXX just to get gcc to shut up */
962 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
963 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
964 dirty = *map++;
965 else
966 dirty >>= 1;
967 if ((dirty & 1) == 0)
968 continue;
969 /*
970 * Skip directory inodes deleted and maybe reallocated
971 */
972 dp = getino(ino);
973 if ((dp->di_mode & IFMT) != IFDIR)
974 continue;
975 #ifdef __linux__
976 /*
977 * Skip directory inodes deleted and not yes reallocated...
978 */
979 if (dp->di_nlink == 0 || dp->di_dtime != 0)
980 continue;
981 if (vflag)
982 msg("dumping directory inode %lu\n", ino);
983 (void)dumpdirino(dp, ino);
984 #else
985 (void)dumpino(dp, ino);
986 #endif
987 }
988
989 msg("dumping (Pass IV) [regular files]\n");
990 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
991 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
992 dirty = *map++;
993 else
994 dirty >>= 1;
995 if ((dirty & 1) == 0)
996 continue;
997 /*
998 * Skip inodes deleted and reallocated as directories.
999 */
1000 dp = getino(ino);
1001 if ((dp->di_mode & IFMT) == IFDIR)
1002 continue;
1003 #ifdef __linux__
1004 /*
1005 * No need to check here for deleted and not yet reallocated
1006 * inodes since this is done in dumpino().
1007 */
1008 #endif
1009 if (vflag) {
1010 if (mflag && TSTINO(ino, metainomap))
1011 msg("dumping regular inode %lu (meta only)\n", ino);
1012 else
1013 msg("dumping regular inode %lu\n", ino);
1014 }
1015 (void)dumpino(dp, ino, mflag && TSTINO(ino, metainomap));
1016 }
1017
1018 tend_writing = time(NULL);
1019 spcl.c_type = TS_END;
1020
1021 if (Afile >= 0) {
1022 volinfo[1] = ROOTINO;
1023 memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t));
1024 spcl.c_flags |= DR_INODEINFO;
1025 }
1026
1027 /*
1028 * Finish off the current tape record with trailer blocks, to ensure
1029 * at least the data in the last partial record makes it to tape.
1030 * Also make sure we write at least 1 trailer block.
1031 */
1032 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
1033 writeheader(maxino - 1);
1034
1035 tnow = trewind();
1036
1037 if (pipeout || fifoout)
1038 msg("%ld blocks (%.2fMB)\n", spcl.c_tapea,
1039 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
1040 else
1041 msg("%ld blocks (%.2fMB) on %d volume(s)\n",
1042 spcl.c_tapea,
1043 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
1044 spcl.c_volume);
1045
1046 /* report dump performance, avoid division by zero */
1047 if (tend_writing - tstart_writing == 0)
1048 msg("finished in less than a second\n");
1049 else
1050 msg("finished in %d seconds, throughput %d kBytes/sec\n",
1051 tend_writing - tstart_writing,
1052 spcl.c_tapea / (tend_writing - tstart_writing));
1053
1054 putdumptime();
1055 msg("Date of this level %s dump: %s", level,
1056 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
1057 msg("Date this dump completed: %s", ctime(&tnow));
1058
1059 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
1060 if (compressed) {
1061 long tapekb = bytes_written / 1024;
1062 double rate = .0005 + (double) spcl.c_tapea / tapekb;
1063 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
1064 spcl.c_tapea, tapekb, rate);
1065 }
1066
1067 if (Afile >= 0)
1068 msg("Archiving dump to %s\n", Apath);
1069
1070 broadcast("DUMP IS DONE!\7\7\n");
1071 msg("DUMP IS DONE\n");
1072 Exit(X_FINOK);
1073 /* NOTREACHED */
1074 return 0; /* gcc - shut up */
1075 }
1076
1077 static void
1078 usage(void)
1079 {
1080 char white[MAXPATHLEN];
1081 const char *ext2ver, *ext2date;
1082
1083 memset(white, ' ', MAXPATHLEN);
1084 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
1085
1086 #ifdef __linux__
1087 ext2fs_get_library_version(&ext2ver, &ext2date);
1088 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
1089 __progname, _DUMP_VERSION, ext2ver, ext2date);
1090 #else
1091 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
1092 #endif
1093 fprintf(stderr,
1094 "usage:\t%s [-level#] [-ac"
1095 #ifdef KERBEROS
1096 "k"
1097 #endif
1098 "mMnqSuv"
1099 "] [-A file] [-B records] [-b blocksize]\n"
1100 "\t%s [-d density] [-D file] [-e inode#,inode#,...] [-E file]\n"
1101 "\t%s [-f file] [-h level] [-I nr errors] "
1102 #ifdef HAVE_BZLIB
1103 "[-j zlevel] "
1104 #endif
1105 #ifdef USE_QFA
1106 "[-Q file]\n"
1107 #endif
1108 "\t%s [-s feet] "
1109 "[-T date] "
1110 #ifdef HAVE_LZO
1111 "[-y] "
1112 #endif
1113 #ifdef HAVE_ZLIB
1114 "[-z zlevel] "
1115 #endif
1116 "filesystem\n"
1117 "\t%s [-W | -w]\n",
1118 __progname, white, white, white, __progname);
1119 exit(X_STARTUP);
1120 }
1121
1122 /*
1123 * Pick up a numeric argument. It must be nonnegative and in the given
1124 * range (except that a vmax of 0 means unlimited).
1125 */
1126 static long
1127 numarg(const char *meaning, long vmin, long vmax)
1128 {
1129 char *p;
1130 long val;
1131
1132 val = strtol(optarg, &p, 10);
1133 if (*p)
1134 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1135 if (val < vmin || (vmax && val > vmax))
1136 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1137 return (val);
1138 }
1139
1140 /*
1141 * The same as numarg, just that it expects a comma separated list of numbers
1142 * and returns an array of longs with the first element containing the number
1143 * values in that array.
1144 */
1145 static long *
1146 numlistarg(const char *meaning, long vmin, long vmax)
1147 {
1148 char *p;
1149 long *vals,*curval;
1150 long valnum;
1151
1152 p = optarg;
1153 vals = NULL;
1154 valnum = 0;
1155 do {
1156 valnum++;
1157 if ( !(vals = realloc(vals, (valnum + 1) * sizeof(*vals))) )
1158 errx(X_STARTUP, "allocating memory failed");
1159 curval = vals + valnum;
1160 *curval = strtol(p, &p, 10);
1161 if (*p && *p!=',')
1162 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
1163 if (*curval < vmin || (vmax && *curval > vmax))
1164 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
1165 *vals = valnum;
1166 if (*p) p++;
1167 } while(*p);
1168 return (vals);
1169 }
1170
1171 void
1172 sig(int signo)
1173 {
1174 switch(signo) {
1175 case SIGALRM:
1176 case SIGBUS:
1177 case SIGFPE:
1178 case SIGHUP:
1179 case SIGTERM:
1180 case SIGTRAP:
1181 if (pipeout || fifoout)
1182 quit("Signal on pipe: cannot recover\n");
1183 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
1184 (void)fflush(stderr);
1185 (void)fflush(stdout);
1186 close_rewind();
1187 exit(X_REWRITE);
1188 /* NOTREACHED */
1189 case SIGSEGV:
1190 msg("SIGSEGV: ABORTING!\n");
1191 (void)signal(SIGSEGV, SIG_DFL);
1192 (void)kill(0, SIGSEGV);
1193 /* NOTREACHED */
1194 }
1195 }
1196
1197 const char *
1198 rawname(const char *cp)
1199 {
1200 #ifdef __linux__
1201 return cp;
1202 #else /* __linux__ */
1203 static char rawbuf[MAXPATHLEN];
1204 char *dp = strrchr(cp, '/');
1205
1206 if (dp == NULL)
1207 return (NULL);
1208 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
1209 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
1210 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
1211 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
1212 return (rawbuf);
1213 #endif /* __linux__ */
1214 }
1215
1216 /*
1217 * obsolete --
1218 * Change set of key letters and ordered arguments into something
1219 * getopt(3) will like.
1220 */
1221 static void
1222 obsolete(int *argcp, char **argvp[])
1223 {
1224 int argc, flags;
1225 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
1226
1227 /* Setup. */
1228 argv = *argvp;
1229 argc = *argcp;
1230
1231 /* Return if no arguments or first argument has leading dash. */
1232 ap = argv[1];
1233 if (argc == 1 || *ap == '-')
1234 return;
1235
1236 /* Allocate space for new arguments. */
1237 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
1238 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
1239 err(X_STARTUP, "malloc new args");
1240
1241 *nargv++ = *argv;
1242 argv += 2;
1243
1244 for (flags = 0; *ap; ++ap) {
1245 switch (*ap) {
1246 case 'A':
1247 case 'B':
1248 case 'b':
1249 case 'd':
1250 case 'D':
1251 case 'e':
1252 case 'E':
1253 case 'f':
1254 case 'F':
1255 case 'h':
1256 case 'L':
1257 case 'Q':
1258 case 's':
1259 case 'T':
1260 if (*argv == NULL) {
1261 warnx("option requires an argument -- %c", *ap);
1262 usage();
1263 }
1264 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1265 err(X_STARTUP, "malloc arg");
1266 nargv[0][0] = '-';
1267 nargv[0][1] = *ap;
1268 (void)strcpy(&nargv[0][2], *argv);
1269 ++argv;
1270 ++nargv;
1271 break;
1272 default:
1273 if (!flags) {
1274 *p++ = '-';
1275 flags = 1;
1276 }
1277 *p++ = *ap;
1278 break;
1279 }
1280 }
1281
1282 /* Terminate flags. */
1283 if (flags) {
1284 *p = '\0';
1285 *nargv++ = flagsp;
1286 }
1287
1288 /* Copy remaining arguments. */
1289 while ((*nargv++ = *argv++));
1290
1291 /* Update argument count. */
1292 *argcp = nargv - *argvp - 1;
1293 }
1294
1295 /*
1296 * This tests whether an inode is in the exclude bitmap
1297 */
1298 int
1299 exclude_ino(dump_ino_t ino)
1300 {
1301 /* if the inode exclude bitmap exists and covers given inode */
1302 if (iexclude_bitmap && iexclude_bitmap_bytes > ino / 8) {
1303 /* then check this inode against it */
1304 int idx = iexclude_bitmap[ino / 8];
1305 if (idx & (1 << (ino % 8)))
1306 return 1;
1307 }
1308 return 0;
1309 }
1310
1311 /*
1312 * This adds an inode to the exclusion bitmap if it isn't already there
1313 */
1314 void
1315 do_exclude_ino(dump_ino_t ino, const char *reason)
1316 {
1317 if (exclude_ino(ino))
1318 return;
1319
1320 if (vflag) {
1321 if (reason)
1322 msg("Excluding inode %u (%s) from dump\n", ino, reason);
1323 else
1324 msg("Excluding inode %u from dump\n", ino);
1325 }
1326
1327 /* check for enough mem; initialize */
1328 if ((ino/8 + 1) > iexclude_bitmap_bytes) {
1329 if (iexclude_bitmap_bytes == 0) {
1330 unsigned int j;
1331 iexclude_bitmap_bytes = 2 * (ino/8 + 1);
1332 iexclude_bitmap = (char*) malloc(iexclude_bitmap_bytes);
1333 if (iexclude_bitmap == NULL) {
1334 msg("allocating memory failed\n");
1335 exit(X_STARTUP);
1336 }
1337 for (j = 0; j < iexclude_bitmap_bytes; j++)
1338 iexclude_bitmap[j] = 0;
1339 }
1340 else {
1341 unsigned int oldsize = iexclude_bitmap_bytes;
1342 iexclude_bitmap_bytes *=
1343 (ino / 8 + 1) / iexclude_bitmap_bytes + 1;
1344 iexclude_bitmap = (char*) realloc(iexclude_bitmap,
1345 iexclude_bitmap_bytes);
1346 if (iexclude_bitmap == NULL) {
1347 msg("allocating memory failed\n");
1348 exit(X_STARTUP);
1349 }
1350 for( ; oldsize < iexclude_bitmap_bytes; oldsize++)
1351 iexclude_bitmap[oldsize] = 0;
1352 }
1353 }
1354
1355 iexclude_bitmap[ino / 8] |= 1 << (ino % 8);
1356 }
1357
1358 static void
1359 do_exclude_ino_str(char * ino) {
1360 char *r;
1361 unsigned long inod;
1362
1363 inod = strtoul(ino, &r, 10);
1364 if (( *r != '\0' && !isspace(*r) ) || inod <= ROOTINO) {
1365 msg("Invalid inode argument %s\n", ino);
1366 msg("The ENTIRE dump is aborted.\n");
1367 exit(X_STARTUP);
1368 }
1369 do_exclude_ino(inod, NULL);
1370 }
1371
1372 /*
1373 * This reads a file containing one inode number per line and exclude them all
1374 */
1375 static void
1376 do_exclude_from_file(char *file) {
1377 FILE *f;
1378 char *p, fname[MAXPATHLEN];
1379
1380
1381 if (!( f = fopen(file, "r")) ) {
1382 msg("Cannot open file for reading: %s\n", file);
1383 msg("The ENTIRE dump is aborted.\n");
1384 exit(X_STARTUP);
1385 }
1386 while (( p = fgets(fname, MAXPATHLEN, f))) {
1387 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */
1388 *(p + strlen(p) - 1) = '\0';
1389 if ( !*p ) /* skip empty lines */
1390 continue;
1391 do_exclude_ino_str(p);
1392 }
1393 fclose(f);
1394 }
1395
1396 static void incompat_flags(int cond, char flag1, char flag2) {
1397 if (cond) {
1398 msg("You cannot use the %c and %c flags together.\n",
1399 flag1, flag2);
1400 msg("The ENTIRE dump is aborted.\n");
1401 exit(X_STARTUP);
1402 }
1403 }
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