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QFA fixes.
[dump.git] / dump / main.c
1 /*
2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@noos.fr>, 1999-2000
6 * Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
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. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 */
41
42 #ifndef lint
43 static const char rcsid[] =
44 "$Id: main.c,v 1.52 2001/07/18 13:12:33 stelian Exp $";
45 #endif /* not lint */
46
47 #include <config.h>
48 #include <compatlfs.h>
49 #include <ctype.h>
50 #include <compaterr.h>
51 #include <fcntl.h>
52 #include <fstab.h>
53 #include <signal.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <string.h>
57 #include <unistd.h>
58
59 #include <sys/param.h>
60 #include <sys/time.h>
61 #include <time.h>
62 #ifdef __linux__
63 #ifdef HAVE_EXT2FS_EXT2_FS_H
64 #include <ext2fs/ext2_fs.h>
65 #else
66 #include <linux/ext2_fs.h>
67 #endif
68 #include <ext2fs/ext2fs.h>
69 #include <sys/stat.h>
70 #include <bsdcompat.h>
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 notify = 0; /* notify operator flag */
92 int blockswritten = 0; /* number of blocks written on current tape */
93 int tapeno = 0; /* current tape number */
94 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
95 int ntrec = NTREC; /* # tape blocks in each tape record */
96 int cartridge = 0; /* Assume non-cartridge tape */
97 #ifdef USE_QFA
98 int tapepos = 0; /* assume no QFA tapeposition needed by user */
99 #endif /* USE_QFA */
100 int dokerberos = 0; /* Use Kerberos authentication */
101 long dev_bsize = 1; /* recalculated below */
102 long blocksperfile; /* output blocks per file */
103 char *host = NULL; /* remote host (if any) */
104 int sizest = 0; /* return size estimate only */
105 int compressed = 0; /* use zlib to compress the output, compress level 1-9 */
106 long long bytes_written = 0; /* total bytes written */
107 long uncomprblks = 0;/* uncompressed blocks written */
108
109 #ifdef __linux__
110 char *__progname;
111 #endif
112
113 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
114 static long numarg __P((const char *, long, long));
115 static void obsolete __P((int *, char **[]));
116 static void usage __P((void));
117
118 dump_ino_t iexclude_list[IEXCLUDE_MAXNUM];/* the inode exclude list */
119 int iexclude_num = 0; /* number of elements in the list */
120
121 int
122 main(int argc, char *argv[])
123 {
124 register dump_ino_t ino;
125 register int dirty;
126 register struct dinode *dp;
127 register struct fstab *dt;
128 register char *map;
129 register int ch;
130 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
131 dump_ino_t maxino;
132 struct STAT statbuf;
133 dev_t filedev = 0;
134 #ifdef __linux__
135 errcode_t retval;
136 char directory[MAXPATHLEN];
137 char pathname[MAXPATHLEN];
138 #endif
139 time_t tnow;
140 char *diskparam;
141
142 spcl.c_label[0] = '\0';
143 spcl.c_date = time(NULL);
144
145 #ifdef __linux__
146 __progname = argv[0];
147 directory[0] = 0;
148 initialize_ext2_error_table();
149 #endif
150
151 tsize = 0; /* Default later, based on 'c' option for cart tapes */
152 unlimited = 1;
153 eot_script = NULL;
154 if ((tapeprefix = getenv("TAPE")) == NULL)
155 tapeprefix = _PATH_DEFTAPE;
156 dumpdates = _PATH_DUMPDATES;
157 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
158 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
159 level = '0';
160
161 if (argc < 2)
162 usage();
163
164 obsolete(&argc, &argv);
165
166 #ifdef USE_QFA
167 gTapeposfd = -1;
168 #endif /* USE_QFA */
169
170 while ((ch = getopt(argc, argv,
171 "0123456789aB:b:cd:e:f:F:h:L:"
172 #ifdef KERBEROS
173 "k"
174 #endif
175 "Mn"
176 #ifdef USE_QFA
177 "Q:"
178 #endif
179 "s:ST:uWw"
180 #ifdef HAVE_ZLIB
181 "z::"
182 #endif
183 )) != -1)
184 switch (ch) {
185 /* dump level */
186 case '0': case '1': case '2': case '3': case '4':
187 case '5': case '6': case '7': case '8': case '9':
188 level = ch;
189 break;
190
191 case 'a': /* `auto-size', Write to EOM. */
192 unlimited = 1;
193 break;
194
195 case 'B': /* blocks per output file */
196 unlimited = 0;
197 blocksperfile = numarg("number of blocks per file",
198 1L, 0L);
199 break;
200
201 case 'b': /* blocks per tape write */
202 ntrec = numarg("number of blocks per write",
203 1L, 1000L);
204 if (ntrec > maxbsize/1024) {
205 msg("Please choose a blocksize <= %dkB\n",
206 maxbsize/1024);
207 msg("The ENTIRE dump is aborted.\n");
208 exit(X_STARTUP);
209 }
210 bflag = 1;
211 break;
212
213 case 'c': /* Tape is cart. not 9-track */
214 unlimited = 0;
215 cartridge = 1;
216 break;
217
218 case 'd': /* density, in bits per inch */
219 unlimited = 0;
220 density = numarg("density", 10L, 327670L) / 10;
221 if (density >= 625 && !bflag)
222 ntrec = HIGHDENSITYTREC;
223 break;
224
225 /* 04-Feb-00 ILC */
226 case 'e': /* exclude an inode */
227 if (iexclude_num == IEXCLUDE_MAXNUM) {
228 msg("Too many -e options\n");
229 msg("The ENTIRE dump is aborted.\n");
230 exit(X_STARTUP);
231 }
232 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
233 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
234 msg("Cannot exclude inode %ld\n", (long)iexclude_list[iexclude_num-1]);
235 msg("The ENTIRE dump is aborted.\n");
236 exit(X_STARTUP);
237 }
238 msg("Added %d to exclude list\n",
239 iexclude_list[iexclude_num-1]);
240 break;
241
242 case 'f': /* output file */
243 tapeprefix = optarg;
244 break;
245
246 case 'F': /* end of tape script */
247 eot_script = optarg;
248 break;
249
250 case 'h':
251 honorlevel = numarg("honor level", 0L, 10L);
252 break;
253
254 #ifdef KERBEROS
255 case 'k':
256 dokerberos = 1;
257 break;
258 #endif
259
260 case 'L':
261 /*
262 * Note that although there are LBLSIZE characters,
263 * the last must be '\0', so the limit on strlen()
264 * is really LBLSIZE-1.
265 */
266 strncpy(spcl.c_label, optarg, LBLSIZE);
267 spcl.c_label[LBLSIZE-1] = '\0';
268 if (strlen(optarg) > LBLSIZE-1) {
269 msg(
270 "WARNING Label `%s' is larger than limit of %d characters.\n",
271 optarg, LBLSIZE-1);
272 msg("WARNING: Using truncated label `%s'.\n",
273 spcl.c_label);
274 }
275 break;
276
277 case 'M': /* multi-volume flag */
278 Mflag = 1;
279 break;
280
281 case 'n': /* notify operators */
282 notify = 1;
283 break;
284
285 #ifdef USE_QFA
286 case 'Q': /* create tapeposfile */
287 gTapeposfile = optarg;
288 tapepos = 1;
289 break;
290 #endif /* USE_QFA */
291
292 case 's': /* tape size, feet */
293 unlimited = 0;
294 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
295 break;
296
297 case 'S':
298 sizest = 1; /* return size estimate only */
299 break;
300
301 case 'T': /* time of last dump */
302 spcl.c_ddate = unctime(optarg);
303 if (spcl.c_ddate < 0) {
304 msg("bad time \"%s\"\n", optarg);
305 msg("The ENTIRE dump is aborted.\n");
306 exit(X_STARTUP);
307 }
308 Tflag = 1;
309 lastlevel = '?';
310 break;
311
312 case 'u': /* update dumpdates */
313 uflag = 1;
314 break;
315
316 case 'W': /* what to do */
317 case 'w':
318 lastdump(ch);
319 exit(X_FINOK); /* do nothing else */
320 #ifdef HAVE_ZLIB
321 case 'z':
322 compressed = 2;
323 if (optarg)
324 compressed = numarg("compress level", 1L, 9L);
325 break;
326 #endif /* HAVE_ZLIB */
327
328 default:
329 usage();
330 }
331 argc -= optind;
332 argv += optind;
333
334 if (argc < 1) {
335 msg("Must specify disk or filesystem\n");
336 msg("The ENTIRE dump is aborted.\n");
337 exit(X_STARTUP);
338 }
339 diskparam = *argv++;
340 if (strlen(diskparam) >= MAXPATHLEN) {
341 msg("Disk or filesystem name too long: %s\n", diskparam);
342 msg("The ENTIRE dump is aborted.\n");
343 exit(X_STARTUP);
344 }
345 argc--;
346 if (Tflag && uflag) {
347 msg("You cannot use the T and u flags together.\n");
348 msg("The ENTIRE dump is aborted.\n");
349 exit(X_STARTUP);
350 }
351 if (strcmp(tapeprefix, "-") == 0) {
352 pipeout++;
353 tapeprefix = "standard output";
354 }
355
356 if (blocksperfile && !compressed)
357 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
358 else if (!unlimited) {
359 /*
360 * Determine how to default tape size and density
361 *
362 * density tape size
363 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
364 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
365 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
366 * (450*4 - slop)
367 * hilit19 hits again: "
368 */
369 if (density == 0)
370 density = cartridge ? 100 : 160;
371 if (tsize == 0)
372 tsize = cartridge ? 1700L*120L : 2300L*120L;
373 }
374
375 if (strchr(tapeprefix, ':')) {
376 host = tapeprefix;
377 tapeprefix = strchr(host, ':');
378 *tapeprefix++ = '\0';
379 #ifdef RDUMP
380 if (index(tapeprefix, '\n')) {
381 msg("invalid characters in tape\n");
382 msg("The ENTIRE dump is aborted.\n");
383 exit(X_STARTUP);
384 }
385 if (rmthost(host) == 0)
386 exit(X_STARTUP);
387 #else
388 msg("remote dump not enabled\n");
389 msg("The ENTIRE dump is aborted.\n");
390 exit(X_STARTUP);
391 #endif
392 }
393 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
394
395 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
396 signal(SIGHUP, sig);
397 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
398 signal(SIGTRAP, sig);
399 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
400 signal(SIGFPE, sig);
401 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
402 signal(SIGBUS, sig);
403 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
404 signal(SIGSEGV, sig);
405 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
406 signal(SIGTERM, sig);
407 if (signal(SIGINT, interrupt) == SIG_IGN)
408 signal(SIGINT, SIG_IGN);
409 set_operators(); /* /etc/group snarfed */
410 getfstab(); /* /etc/fstab snarfed */
411
412 /*
413 * disk may end in / and this can confuse
414 * fstabsearch.
415 */
416 i = strlen(diskparam) - 1;
417 if (i > 1 && diskparam[i] == '/')
418 diskparam[i] = '\0';
419
420 disk = get_device_name(diskparam);
421 if (!disk) { /* null means the disk is some form
422 of LABEL= or UID= but it was not
423 found */
424 msg("Cannot find a disk having %s\n", diskparam);
425 msg("The ENTIRE dump is aborted.\n");
426 exit(X_STARTUP);
427 }
428 /*
429 * disk can be either the full special file name,
430 * the suffix of the special file name,
431 * the special name missing the leading '/',
432 * the file system name with or without the leading '/'.
433 */
434 if ((dt = fstabsearch(disk)) != NULL) {
435 /* if found then only one parameter (i.e. partition)
436 * is allowed */
437 if (argc >= 1) {
438 (void)fprintf(stderr, "Unknown arguments to dump:");
439 while (argc--)
440 (void)fprintf(stderr, " %s", *argv++);
441 (void)fprintf(stderr, "\n");
442 msg("The ENTIRE dump is aborted.\n");
443 exit(X_STARTUP);
444 }
445 disk = rawname(dt->fs_spec);
446 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
447 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
448 } else {
449 #ifdef __linux__
450 #ifdef HAVE_REALPATH
451 if (realpath(disk, pathname) == NULL)
452 #endif
453 strcpy(pathname, disk);
454 /*
455 * The argument could be now a mountpoint of
456 * a filesystem specified in fstab. Search for it.
457 */
458 if ((dt = fstabsearch(pathname)) != NULL) {
459 disk = rawname(dt->fs_spec);
460 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
461 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
462 } else {
463 /*
464 * The argument was not found in the fstab
465 * assume that this is a subtree and search for it
466 */
467 dt = fstabsearchdir(pathname, directory);
468 if (dt != NULL) {
469 char name[MAXPATHLEN];
470 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
471 (void)snprintf(name, sizeof(name), "%s (dir %s)",
472 dt->fs_file, directory);
473 (void)strncpy(spcl.c_filesys, name, NAMELEN);
474 disk = rawname(dt->fs_spec);
475 } else {
476 (void)strncpy(spcl.c_dev, disk, NAMELEN);
477 (void)strncpy(spcl.c_filesys, "an unlisted file system",
478 NAMELEN);
479 }
480 }
481 #else
482 (void)strncpy(spcl.c_dev, disk, NAMELEN);
483 (void)strncpy(spcl.c_filesys, "an unlisted file system",
484 NAMELEN);
485 #endif
486 }
487
488 if (directory[0] != 0) {
489 if (level != '0') {
490 msg("Only level 0 dumps are allowed on a subdirectory\n");
491 msg("The ENTIRE dump is aborted.\n");
492 exit(X_STARTUP);
493 }
494 if (uflag) {
495 msg("You can't update the dumpdates file when dumping a subdirectory\n");
496 msg("The ENTIRE dump is aborted.\n");
497 exit(X_STARTUP);
498 }
499 }
500 spcl.c_dev[NAMELEN-1] = '\0';
501 spcl.c_filesys[NAMELEN-1] = '\0';
502 (void)gethostname(spcl.c_host, NAMELEN);
503 spcl.c_host[NAMELEN-1] = '\0';
504 spcl.c_level = level - '0';
505 spcl.c_type = TS_TAPE;
506 if (!Tflag)
507 getdumptime(uflag); /* dumpdates snarfed */
508
509 if (spcl.c_ddate == 0 && spcl.c_level) {
510 msg("WARNING: There is no inferior level dump on this filesystem\n");
511 msg("WARNING: Assuming a level 0 dump by default\n");
512 level = '0';
513 spcl.c_level = 0;
514 }
515
516 if (Mflag)
517 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
518 else
519 strncpy(tape, tapeprefix, MAXPATHLEN);
520 tape[MAXPATHLEN - 1] = '\0';
521
522 if (!pipeout) {
523 if (STAT(tape, &statbuf) != -1)
524 fifoout= statbuf.st_mode & S_IFIFO;
525 }
526
527 if (!sizest) {
528
529 msg("Date of this level %c dump: %s", level,
530 ctime4(&spcl.c_date));
531 #ifdef USE_QFA
532 gThisDumpDate = spcl.c_date;
533 #endif
534 if (spcl.c_ddate)
535 msg("Date of last level %c dump: %s", lastlevel,
536 ctime4(&spcl.c_ddate));
537 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
538 if (host)
539 msgtail("to %s on host %s\n", tape, host);
540 else
541 msgtail("to %s\n", tape);
542 } /* end of size estimate */
543
544 #ifdef __linux__
545 retval = dump_fs_open(disk, &fs);
546 if (retval) {
547 com_err(disk, retval, "while opening filesystem");
548 if (retval == EXT2_ET_REV_TOO_HIGH)
549 msg("Get a newer version of dump!\n");
550 msg("The ENTIRE dump is aborted.\n");
551 exit(X_STARTUP);
552 }
553 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
554 com_err(disk, retval, "while opening filesystem");
555 msg("Get a newer version of dump!\n");
556 msg("The ENTIRE dump is aborted.\n");
557 exit(X_STARTUP);
558 }
559 if ((diskfd = OPEN(disk, O_RDONLY)) < 0) {
560 msg("Cannot open %s\n", disk);
561 msg("The ENTIRE dump is aborted.\n");
562 exit(X_STARTUP);
563 }
564 /* if no user label specified, use ext2 filesystem label if available */
565 if (spcl.c_label[0] == '\0') {
566 const char *lbl;
567 if ( (lbl = get_device_label(disk)) != NULL) {
568 strncpy(spcl.c_label, lbl, LBLSIZE);
569 spcl.c_label[LBLSIZE-1] = '\0';
570 }
571 else
572 strcpy(spcl.c_label, "none"); /* safe strcpy. */
573 }
574 sync();
575 dev_bsize = DEV_BSIZE;
576 dev_bshift = ffs(dev_bsize) - 1;
577 if (dev_bsize != (1 << dev_bshift))
578 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
579 tp_bshift = ffs(TP_BSIZE) - 1;
580 if (TP_BSIZE != (1 << tp_bshift))
581 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
582 maxino = fs->super->s_inodes_count;
583 #if 0
584 spcl.c_flags |= DR_NEWINODEFMT;
585 #endif
586 #else /* __linux __*/
587 if ((diskfd = open(disk, O_RDONLY)) < 0) {
588 msg("Cannot open %s\n", disk);
589 msg("The ENTIRE dump is aborted.\n");
590 exit(X_STARTUP);
591 }
592 sync();
593 sblock = (struct fs *)sblock_buf;
594 bread(SBOFF, (char *) sblock, SBSIZE);
595 if (sblock->fs_magic != FS_MAGIC)
596 quit("bad sblock magic number\n");
597 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
598 dev_bshift = ffs(dev_bsize) - 1;
599 if (dev_bsize != (1 << dev_bshift))
600 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
601 tp_bshift = ffs(TP_BSIZE) - 1;
602 if (TP_BSIZE != (1 << tp_bshift))
603 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
604 #ifdef FS_44INODEFMT
605 if (sblock->fs_inodefmt >= FS_44INODEFMT)
606 spcl.c_flags |= DR_NEWINODEFMT;
607 #endif
608 maxino = sblock->fs_ipg * sblock->fs_ncg;
609 #endif /* __linux__ */
610 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
611 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
612 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
613 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
614 if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
615 quit("out of memory allocating inode maps\n");
616 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
617
618 nonodump = spcl.c_level < honorlevel;
619
620 if (!sizest) {
621 msg("Label: %s\n", spcl.c_label);
622
623 if (compressed)
624 msg("Compressing output at compression level %d\n",
625 compressed);
626 }
627
628 #if defined(SIGINFO)
629 (void)signal(SIGINFO, statussig);
630 #endif
631
632 if (!sizest)
633 msg("mapping (Pass I) [regular files]\n");
634 #ifdef __linux__
635 if (directory[0] == 0)
636 anydirskipped = mapfiles(maxino, &tapesize);
637 else {
638 if (STAT(pathname, &statbuf) == -1) {
639 msg("File cannot be accessed (%s).\n", pathname);
640 msg("The ENTIRE dump is aborted.\n");
641 exit(X_STARTUP);
642 }
643 filedev = statbuf.st_dev;
644 if (!(statbuf.st_mode & S_IFDIR)) /* is a file */
645 anydirskipped = maponefile(maxino, &tapesize,
646 directory);
647 else
648 anydirskipped = mapfilesfromdir(maxino, &tapesize,
649 directory);
650 }
651 while (argc--) {
652 int anydirskipped2;
653 char *p = *argv;
654 /* check if file is available */
655 if (STAT(p, &statbuf) == -1) {
656 msg("File cannot be accessed (%s).\n", p);
657 msg("The ENTIRE dump is aborted.\n");
658 exit(X_STARTUP);
659 }
660 /* check if file is on same unix partiton as the first
661 * argument */
662 if (statbuf.st_dev != filedev) {
663 msg("Files are not on same file system (%s).\n", p);
664 msg("The ENTIRE dump is aborted.\n");
665 exit(X_STARTUP);
666 }
667 /* check if file is a directory */
668 if (!(statbuf.st_mode & S_IFDIR))
669 anydirskipped2 = maponefile(maxino, &tapesize,
670 p+strlen(dt->fs_file));
671 else
672 /* read directory inodes.
673 * NOTE: nested directories are not recognized
674 * so inodes may be umped twice!
675 */
676 anydirskipped2 = mapfilesfromdir(maxino, &tapesize,
677 p+strlen(dt->fs_file));
678 if (!anydirskipped)
679 anydirskipped = anydirskipped2;
680 argv++;
681 }
682 #else
683 anydirskipped = mapfiles(maxino, &tapesize);
684 #endif
685
686 if (!sizest)
687 msg("mapping (Pass II) [directories]\n");
688 while (anydirskipped) {
689 anydirskipped = mapdirs(maxino, &tapesize);
690 }
691
692 if (sizest) {
693 printf("%.0f\n", ((double)tapesize + 1 + ntrec) * TP_BSIZE);
694 exit(X_FINOK);
695 } /* stop here for size estimate */
696
697 if (pipeout || unlimited) {
698 tapesize += 1 + ntrec; /* 1 map header + trailer blocks */
699 msg("estimated %ld tape blocks.\n", tapesize);
700 } else {
701 double fetapes;
702
703 if (blocksperfile)
704 fetapes = (double) tapesize / blocksperfile;
705 else if (cartridge) {
706 /* Estimate number of tapes, assuming streaming stops at
707 the end of each block written, and not in mid-block.
708 Assume no erroneous blocks; this can be compensated
709 for with an artificially low tape size. */
710 fetapes =
711 ( (double) tapesize /* blocks */
712 * TP_BSIZE /* bytes/block */
713 * (1.0/density) /* 0.1" / byte " */
714 +
715 (double) tapesize /* blocks */
716 * (1.0/ntrec) /* streaming-stops per block */
717 * 15.48 /* 0.1" / streaming-stop " */
718 ) * (1.0 / tsize ); /* tape / 0.1" " */
719 } else {
720 /* Estimate number of tapes, for old fashioned 9-track
721 tape */
722 int tenthsperirg = (density == 625) ? 3 : 7;
723 fetapes =
724 ( (double) tapesize /* blocks */
725 * TP_BSIZE /* bytes / block */
726 * (1.0/density) /* 0.1" / byte " */
727 +
728 (double) tapesize /* blocks */
729 * (1.0/ntrec) /* IRG's / block */
730 * tenthsperirg /* 0.1" / IRG " */
731 ) * (1.0 / tsize ); /* tape / 0.1" " */
732 }
733 etapes = fetapes; /* truncating assignment */
734 etapes++;
735 /* count the dumped inodes map on each additional tape */
736 tapesize += (etapes - 1) *
737 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
738 tapesize += etapes + ntrec; /* headers + trailer blks */
739 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
740 tapesize, fetapes);
741 }
742
743 #ifdef USE_QFA
744 if (tapepos) {
745 msg("writing QFA positions to %s\n", gTapeposfile);
746 if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT)) < 0)
747 quit("can't open tapeposfile\n");
748 /* print QFA-file header */
749 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
750 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
751 quit("can't write tapeposfile\n");
752 sprintf(gTps, "ino\ttapeno\ttapepos\n");
753 if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
754 quit("can't write tapeposfile\n");
755 }
756 #endif /* USE_QFA */
757
758 /*
759 * Allocate tape buffer.
760 */
761 if (!alloctape())
762 quit(
763 "can't allocate tape buffers - try a smaller blocking factor.\n");
764
765 startnewtape(1);
766 tstart_writing = time(NULL);
767 dumpmap(usedinomap, TS_CLRI, maxino - 1);
768
769 msg("dumping (Pass III) [directories]\n");
770 dirty = 0; /* XXX just to get gcc to shut up */
771 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
772 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
773 dirty = *map++;
774 else
775 dirty >>= 1;
776 if ((dirty & 1) == 0)
777 continue;
778 /*
779 * Skip directory inodes deleted and maybe reallocated
780 */
781 dp = getino(ino);
782 if ((dp->di_mode & IFMT) != IFDIR)
783 continue;
784 #ifdef __linux__
785 /*
786 * Skip directory inodes deleted and not yes reallocated...
787 */
788 if (dp->di_nlink == 0 || dp->di_dtime != 0)
789 continue;
790 (void)dumpdirino(dp, ino);
791 #else
792 (void)dumpino(dp, ino);
793 #endif
794 }
795
796 msg("dumping (Pass IV) [regular files]\n");
797 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
798 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
799 dirty = *map++;
800 else
801 dirty >>= 1;
802 if ((dirty & 1) == 0)
803 continue;
804 /*
805 * Skip inodes deleted and reallocated as directories.
806 */
807 dp = getino(ino);
808 if ((dp->di_mode & IFMT) == IFDIR)
809 continue;
810 #ifdef __linux__
811 /*
812 * No need to check here for deleted and not yet reallocated
813 * inodes since this is done in dumpino().
814 */
815 #endif
816 (void)dumpino(dp, ino);
817 }
818
819 tend_writing = time(NULL);
820 spcl.c_type = TS_END;
821 /*
822 * Finish off the current tape record with trailer blocks, to ensure
823 * at least the data in the last partial record makes it to tape.
824 * Also make sure we write at least 1 trailer block.
825 */
826 for (i = ntrec - (spcl.c_tapea % ntrec); i; --i)
827 writeheader(maxino - 1);
828
829 tnow = trewind();
830
831 if (pipeout || fifoout)
832 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
833 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
834 else
835 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
836 spcl.c_tapea,
837 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
838 spcl.c_volume);
839
840 /* report dump performance, avoid division by zero */
841 if (tend_writing - tstart_writing == 0)
842 msg("finished in less than a second\n");
843 else
844 msg("finished in %d seconds, throughput %d kBytes/sec\n",
845 tend_writing - tstart_writing,
846 spcl.c_tapea / (tend_writing - tstart_writing));
847
848 putdumptime();
849 msg("Date of this level %c dump: %s", level,
850 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
851 msg("Date this dump completed: %s", ctime(&tnow));
852
853 msg("Average transfer rate: %ld kB/s\n", xferrate / tapeno);
854 if (compressed) {
855 long tapekb = bytes_written / 1024;
856 double rate = .0005 + (double) spcl.c_tapea / tapekb;
857 msg("Wrote %ldkB uncompressed, %ldkB compressed, %1.3f:1\n",
858 spcl.c_tapea, tapekb, rate);
859 }
860
861 broadcast("DUMP IS DONE!\7\7\n");
862 msg("DUMP IS DONE\n");
863 Exit(X_FINOK);
864 /* NOTREACHED */
865 return 0; /* gcc - shut up */
866 }
867
868 static void
869 usage(void)
870 {
871 char white[MAXPATHLEN];
872 const char *ext2ver, *ext2date;
873
874 memset(white, ' ', MAXPATHLEN);
875 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
876
877 #ifdef __linux__
878 ext2fs_get_library_version(&ext2ver, &ext2date);
879 fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
880 __progname, _DUMP_VERSION, ext2ver, ext2date);
881 #else
882 fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
883 #endif
884 fprintf(stderr,
885 "usage:\t%s [-0123456789ac"
886 #ifdef KERBEROS
887 "k"
888 #endif
889 "MnSu"
890 "] [-B records] [-b blocksize] [-d density]\n"
891 "\t%s [-e inode#] [-f file] [-h level] "
892 #ifdef USE_QFA
893 "[-Q file] "
894 #endif
895 "[-s feet]\n"
896 "\t%s [-T date] "
897 #ifdef HAVE_ZLIB
898 "[-z zlevel] "
899 #endif
900 "filesystem\n"
901 "\t%s [-W | -w]\n",
902 __progname, white, white, __progname);
903 exit(X_STARTUP);
904 }
905
906 /*
907 * Pick up a numeric argument. It must be nonnegative and in the given
908 * range (except that a vmax of 0 means unlimited).
909 */
910 static long
911 numarg(const char *meaning, long vmin, long vmax)
912 {
913 char *p;
914 long val;
915
916 val = strtol(optarg, &p, 10);
917 if (*p)
918 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
919 if (val < vmin || (vmax && val > vmax))
920 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
921 return (val);
922 }
923
924 void
925 sig(int signo)
926 {
927 switch(signo) {
928 case SIGALRM:
929 case SIGBUS:
930 case SIGFPE:
931 case SIGHUP:
932 case SIGTERM:
933 case SIGTRAP:
934 if (pipeout || fifoout)
935 quit("Signal on pipe: cannot recover\n");
936 msg("Rewriting attempted as response to unknown signal: %d.\n", signo);
937 (void)fflush(stderr);
938 (void)fflush(stdout);
939 close_rewind();
940 exit(X_REWRITE);
941 /* NOTREACHED */
942 case SIGSEGV:
943 msg("SIGSEGV: ABORTING!\n");
944 (void)signal(SIGSEGV, SIG_DFL);
945 (void)kill(0, SIGSEGV);
946 /* NOTREACHED */
947 }
948 }
949
950 const char *
951 rawname(const char *cp)
952 {
953 #ifdef __linux__
954 return cp;
955 #else /* __linux__ */
956 static char rawbuf[MAXPATHLEN];
957 char *dp = strrchr(cp, '/');
958
959 if (dp == NULL)
960 return (NULL);
961 (void)strncpy(rawbuf, cp, min(dp-cp, MAXPATHLEN - 1));
962 rawbuf[min(dp-cp, MAXPATHLEN-1)] = '\0';
963 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
964 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
965 return (rawbuf);
966 #endif /* __linux__ */
967 }
968
969 /*
970 * obsolete --
971 * Change set of key letters and ordered arguments into something
972 * getopt(3) will like.
973 */
974 static void
975 obsolete(int *argcp, char **argvp[])
976 {
977 int argc, flags;
978 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
979
980 /* Setup. */
981 argv = *argvp;
982 argc = *argcp;
983
984 /* Return if no arguments or first argument has leading dash. */
985 ap = argv[1];
986 if (argc == 1 || *ap == '-')
987 return;
988
989 /* Allocate space for new arguments. */
990 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
991 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
992 err(X_STARTUP, "malloc new args");
993
994 *nargv++ = *argv;
995 argv += 2;
996
997 for (flags = 0; *ap; ++ap) {
998 switch (*ap) {
999 case 'B':
1000 case 'b':
1001 case 'd':
1002 case 'e':
1003 case 'f':
1004 case 'F':
1005 case 'h':
1006 case 'L':
1007 case 'Q':
1008 case 's':
1009 case 'T':
1010 if (*argv == NULL) {
1011 warnx("option requires an argument -- %c", *ap);
1012 usage();
1013 }
1014 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
1015 err(X_STARTUP, "malloc arg");
1016 nargv[0][0] = '-';
1017 nargv[0][1] = *ap;
1018 (void)strcpy(&nargv[0][2], *argv);
1019 ++argv;
1020 ++nargv;
1021 break;
1022 default:
1023 if (!flags) {
1024 *p++ = '-';
1025 flags = 1;
1026 }
1027 *p++ = *ap;
1028 break;
1029 }
1030 }
1031
1032 /* Terminate flags. */
1033 if (flags) {
1034 *p = '\0';
1035 *nargv++ = flagsp;
1036 }
1037
1038 /* Copy remaining arguments. */
1039 while ((*nargv++ = *argv++));
1040
1041 /* Update argument count. */
1042 *argcp = nargv - *argvp - 1;
1043 }
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