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64bit and glibc 2.2.2 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 1.34 2001/02/22 10:57:40 stelian Exp $";
45 #endif /* not lint */
46
47 #include <config.h>
48 #include <sys/param.h>
49 #include <sys/time.h>
50 #ifdef __linux__
51 #include <linux/ext2_fs.h>
52 #include <time.h>
53 #include <sys/stat.h>
54 #include <bsdcompat.h>
55 #else
56 #ifdef sunos
57 #include <sys/vnode.h>
58
59 #include <ufs/inode.h>
60 #include <ufs/fs.h>
61 #else
62 #include <ufs/ufs/dinode.h>
63 #include <ufs/ffs/fs.h>
64 #endif
65 #endif
66
67 #include <protocols/dumprestore.h>
68
69 #include <ctype.h>
70 #include <compaterr.h>
71 #include <fcntl.h>
72 #include <fstab.h>
73 #include <signal.h>
74 #include <stdio.h>
75 #include <stdlib.h>
76 #include <string.h>
77 #include <unistd.h>
78
79 #ifdef __linux__
80 #include <ext2fs/ext2fs.h>
81 #endif
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 int dokerberos = 0; /* Use Kerberos authentication */
98 long dev_bsize = 1; /* recalculated below */
99 long blocksperfile; /* output blocks per file */
100 char *host = NULL; /* remote host (if any) */
101 int sizest = 0; /* return size estimate only */
102 int compressed = 0; /* use zlib to compress the output */
103 long long bytes_written = 0; /* total bytes written */
104 long uncomprblks = 0;/* uncompressed blocks written */
105
106 #ifdef __linux__
107 char *__progname;
108 #endif
109
110 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
111 static long numarg __P((const char *, long, long));
112 static void obsolete __P((int *, char **[]));
113 static void usage __P((void));
114
115 ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
116 int iexclude_num = 0; /* number of elements in the list */
117
118 int
119 main(int argc, char *argv[])
120 {
121 register ino_t ino;
122 register int dirty;
123 register struct dinode *dp;
124 register struct fstab *dt;
125 register char *map;
126 register int ch;
127 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
128 ino_t maxino;
129 #ifdef __linux__
130 errcode_t retval;
131 char directory[MAXPATHLEN];
132 char pathname[MAXPATHLEN];
133 #endif
134 time_t tnow;
135 char *diskparam;
136
137 spcl.c_label[0] = '\0';
138 spcl.c_date = 0;
139 #ifdef __linux__
140 (void)time4(&spcl.c_date);
141 #else
142 (void)time((time_t *)&spcl.c_date);
143 #endif
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 #ifdef KERBEROS
166 #ifdef HAVE_ZLIB
167 #define optstring "0123456789aB:b:cd:e:f:F:h:kL:Mns:ST:uWwz"
168 #else
169 #define optstring "0123456789aB:b:cd:e:f:F:h:kL:Mns:ST:uWw"
170 #endif /* HAVE_ZLIB */
171 #else
172 #ifdef HAVE_ZLIB
173 #define optstring "0123456789aB:b:cd:e:f:F:h:L:Mns:ST:uWwz"
174 #else
175 #define optstring "0123456789aB:b:cd:e:f:F:h:L:Mns:ST:uWw"
176 #endif /* HAVE_ZLIB */
177 #endif /* KERBEROS */
178 while ((ch = getopt(argc, argv, optstring)) != -1)
179 #undef optstring
180 switch (ch) {
181 /* dump level */
182 case '0': case '1': case '2': case '3': case '4':
183 case '5': case '6': case '7': case '8': case '9':
184 level = ch;
185 break;
186
187 case 'a': /* `auto-size', Write to EOM. */
188 unlimited = 1;
189 break;
190
191 case 'B': /* blocks per output file */
192 unlimited = 0;
193 blocksperfile = numarg("number of blocks per file",
194 1L, 0L);
195 break;
196
197 case 'b': /* blocks per tape write */
198 ntrec = numarg("number of blocks per write",
199 1L, 1000L);
200 if (ntrec > maxbsize/1024) {
201 msg("Please choose a blocksize <= %dKB\n",
202 maxbsize/1024);
203 exit(X_STARTUP);
204 }
205 bflag = 1;
206 break;
207
208 case 'c': /* Tape is cart. not 9-track */
209 unlimited = 0;
210 cartridge = 1;
211 break;
212
213 case 'd': /* density, in bits per inch */
214 unlimited = 0;
215 density = numarg("density", 10L, 327670L) / 10;
216 if (density >= 625 && !bflag)
217 ntrec = HIGHDENSITYTREC;
218 break;
219
220 /* 04-Feb-00 ILC */
221 case 'e': /* exclude an inode */
222 if (iexclude_num == IEXCLUDE_MAXNUM) {
223 (void)fprintf(stderr, "Too many -e options\n");
224 exit(X_STARTUP);
225 }
226 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
227 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
228 (void)fprintf(stderr, "Cannot exclude inode %ld\n", (long)iexclude_list[iexclude_num-1]);
229 exit(X_STARTUP);
230 }
231 msg("Added %d to exclude list\n",
232 iexclude_list[iexclude_num-1]);
233 break;
234
235 case 'f': /* output file */
236 tapeprefix = optarg;
237 break;
238
239 case 'F': /* end of tape script */
240 eot_script = optarg;
241 break;
242
243 case 'h':
244 honorlevel = numarg("honor level", 0L, 10L);
245 break;
246
247 #ifdef KERBEROS
248 case 'k':
249 dokerberos = 1;
250 break;
251 #endif
252
253 case 'L':
254 /*
255 * Note that although there are LBLSIZE characters,
256 * the last must be '\0', so the limit on strlen()
257 * is really LBLSIZE-1.
258 */
259 strncpy(spcl.c_label, optarg, LBLSIZE);
260 spcl.c_label[LBLSIZE-1] = '\0';
261 if (strlen(optarg) > LBLSIZE-1) {
262 msg(
263 "WARNING Label `%s' is larger than limit of %d characters.\n",
264 optarg, LBLSIZE-1);
265 msg("WARNING: Using truncated label `%s'.\n",
266 spcl.c_label);
267 }
268 break;
269
270 case 'M': /* multi-volume flag */
271 Mflag = 1;
272 break;
273
274 case 'n': /* notify operators */
275 notify = 1;
276 break;
277
278 case 's': /* tape size, feet */
279 unlimited = 0;
280 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
281 break;
282
283 case 'S':
284 sizest = 1; /* return size estimate only */
285 break;
286
287 case 'T': /* time of last dump */
288 spcl.c_ddate = unctime(optarg);
289 if (spcl.c_ddate < 0) {
290 (void)fprintf(stderr, "bad time \"%s\"\n",
291 optarg);
292 exit(X_STARTUP);
293 }
294 Tflag = 1;
295 lastlevel = '?';
296 break;
297
298 case 'u': /* update dumpdates */
299 uflag = 1;
300 break;
301
302 case 'W': /* what to do */
303 case 'w':
304 lastdump(ch);
305 exit(X_FINOK); /* do nothing else */
306 #ifdef HAVE_ZLIB
307 case 'z':
308 compressed = 1;
309 break;
310 #endif /* HAVE_ZLIB */
311
312 default:
313 usage();
314 }
315 argc -= optind;
316 argv += optind;
317
318 if (argc < 1) {
319 (void)fprintf(stderr, "Must specify disk or filesystem\n");
320 exit(X_STARTUP);
321 }
322 diskparam = *argv++;
323 if (strlen(diskparam) >= MAXPATHLEN) {
324 (void)fprintf(stderr, "Disk or filesystem name too long: %s\n", diskparam);
325 exit(X_STARTUP);
326 }
327 argc--;
328 if (argc >= 1) {
329 (void)fprintf(stderr, "Unknown arguments to dump:");
330 while (argc--)
331 (void)fprintf(stderr, " %s", *argv++);
332 (void)fprintf(stderr, "\n");
333 exit(X_STARTUP);
334 }
335 if (Tflag && uflag) {
336 (void)fprintf(stderr,
337 "You cannot use the T and u flags together.\n");
338 exit(X_STARTUP);
339 }
340 if (strcmp(tapeprefix, "-") == 0) {
341 pipeout++;
342 tapeprefix = "standard output";
343 }
344
345 if (blocksperfile)
346 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
347 else if (!unlimited) {
348 /*
349 * Determine how to default tape size and density
350 *
351 * density tape size
352 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
353 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
354 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
355 * (450*4 - slop)
356 * hilit19 hits again: "
357 */
358 if (density == 0)
359 density = cartridge ? 100 : 160;
360 if (tsize == 0)
361 tsize = cartridge ? 1700L*120L : 2300L*120L;
362 }
363
364 if (strchr(tapeprefix, ':')) {
365 host = tapeprefix;
366 tapeprefix = strchr(host, ':');
367 *tapeprefix++ = '\0';
368 #ifdef RDUMP
369 if (index(tapeprefix, '\n')) {
370 (void)fprintf(stderr, "invalid characters in tape\n");
371 exit(X_STARTUP);
372 }
373 if (rmthost(host) == 0)
374 exit(X_STARTUP);
375 #else
376 (void)fprintf(stderr, "remote dump not enabled\n");
377 exit(X_STARTUP);
378 #endif
379 }
380 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
381
382 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
383 signal(SIGHUP, sig);
384 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
385 signal(SIGTRAP, sig);
386 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
387 signal(SIGFPE, sig);
388 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
389 signal(SIGBUS, sig);
390 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
391 signal(SIGSEGV, sig);
392 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
393 signal(SIGTERM, sig);
394 if (signal(SIGINT, interrupt) == SIG_IGN)
395 signal(SIGINT, SIG_IGN);
396 set_operators(); /* /etc/group snarfed */
397 getfstab(); /* /etc/fstab snarfed */
398
399 disk = get_device_name(diskparam);
400 if (!disk) { /* null means the disk is some form
401 of LABEL= or UID= but it was not
402 found */
403 msg("Cannot find a disk having %s\n", diskparam);
404 exit(X_STARTUP);
405 }
406 /*
407 * disk may end in / and this can confuse
408 * fstabsearch.
409 */
410 if (strlen(disk) > 1 && disk[strlen(disk) - 1] == '/')
411 disk[strlen(disk) - 1] = '\0';
412 /*
413 * disk can be either the full special file name,
414 * the suffix of the special file name,
415 * the special name missing the leading '/',
416 * the file system name with or without the leading '/'.
417 */
418 if ((dt = fstabsearch(disk)) != NULL) {
419 disk = rawname(dt->fs_spec);
420 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
421 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
422 } else {
423 #ifdef __linux__
424 #ifdef HAVE_REALPATH
425 if (realpath(disk, pathname) == NULL)
426 #endif
427 strcpy(pathname, disk);
428 /*
429 * The argument could be now a mountpoint of
430 * a filesystem specified in fstab. Search for it.
431 */
432 if ((dt = fstabsearch(pathname)) != NULL) {
433 disk = rawname(dt->fs_spec);
434 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
435 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
436 } else {
437 /*
438 * The argument was not found in the fstab
439 * assume that this is a subtree and search for it
440 */
441 dt = fstabsearchdir(pathname, directory);
442 if (dt != NULL) {
443 char name[MAXPATHLEN];
444 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
445 (void)snprintf(name, sizeof(name), "%s (dir %s)",
446 dt->fs_file, directory);
447 (void)strncpy(spcl.c_filesys, name, NAMELEN);
448 disk = rawname(dt->fs_spec);
449 } else {
450 (void)strncpy(spcl.c_dev, disk, NAMELEN);
451 (void)strncpy(spcl.c_filesys, "an unlisted file system",
452 NAMELEN);
453 }
454 }
455 #else
456 (void)strncpy(spcl.c_dev, disk, NAMELEN);
457 (void)strncpy(spcl.c_filesys, "an unlisted file system",
458 NAMELEN);
459 #endif
460 }
461
462 if (directory[0] != 0) {
463 if (level != '0') {
464 (void)fprintf(stderr, "Only level 0 dumps are allowed on a subdirectory\n");
465 exit(X_STARTUP);
466 }
467 if (uflag) {
468 (void)fprintf(stderr, "You can't update the dumpdates file when dumping a subdirectory\n");
469 exit(X_STARTUP);
470 }
471 }
472 spcl.c_dev[NAMELEN-1] = '\0';
473 spcl.c_filesys[NAMELEN-1] = '\0';
474 (void)gethostname(spcl.c_host, NAMELEN);
475 spcl.c_host[NAMELEN-1] = '\0';
476 spcl.c_level = level - '0';
477 spcl.c_type = TS_TAPE;
478 if (!Tflag)
479 getdumptime(uflag); /* dumpdates snarfed */
480
481 if (spcl.c_ddate == 0 && spcl.c_level) {
482 msg("WARNING: There is no inferior level dump on this filesystem\n");
483 msg("WARNING: Assuming a level 0 dump by default\n");
484 level = '0';
485 spcl.c_level = 0;
486 }
487
488 if (Mflag)
489 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
490 else
491 strncpy(tape, tapeprefix, MAXPATHLEN);
492 tape[MAXPATHLEN - 1] = '\0';
493
494 if (!sizest) {
495
496 msg("Date of this level %c dump: %s", level,
497 #ifdef __linux__
498 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
499 #else
500 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
501 #endif
502 msg("Date of last level %c dump: %s", lastlevel,
503 #ifdef __linux__
504 spcl.c_ddate == 0 ? "the epoch\n" : ctime4(&spcl.c_ddate));
505 #else
506 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
507 #endif
508 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
509 if (host)
510 msgtail("to %s on host %s\n", tape, host);
511 else
512 msgtail("to %s\n", tape);
513 } /* end of size estimate */
514
515 #ifdef __linux__
516 retval = dump_fs_open(disk, &fs);
517 if (retval) {
518 com_err(disk, retval, "while opening filesystem");
519 if (retval == EXT2_ET_REV_TOO_HIGH)
520 printf ("Get a newer version of dump!\n");
521 exit(X_STARTUP);
522 }
523 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
524 com_err(disk, retval, "while opening filesystem");
525 printf ("Get a newer version of dump!\n");
526 exit(X_STARTUP);
527 }
528 if ((diskfd = open(disk, O_RDONLY)) < 0) {
529 msg("Cannot open %s\n", disk);
530 exit(X_STARTUP);
531 }
532 /* if no user label specified, use ext2 filesystem label if available */
533 if (spcl.c_label[0] == '\0') {
534 const char *lbl;
535 if ( (lbl = get_device_label(disk)) != NULL) {
536 strncpy(spcl.c_label, lbl, LBLSIZE);
537 spcl.c_label[LBLSIZE-1] = '\0';
538 }
539 else
540 strcpy(spcl.c_label, "none"); /* safe strcpy. */
541 }
542 sync();
543 dev_bsize = DEV_BSIZE;
544 dev_bshift = ffs(dev_bsize) - 1;
545 if (dev_bsize != (1 << dev_bshift))
546 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
547 tp_bshift = ffs(TP_BSIZE) - 1;
548 if (TP_BSIZE != (1 << tp_bshift))
549 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
550 maxino = fs->super->s_inodes_count;
551 #if 0
552 spcl.c_flags |= DR_NEWINODEFMT;
553 #endif
554 #else /* __linux __*/
555 if ((diskfd = open(disk, O_RDONLY)) < 0) {
556 msg("Cannot open %s\n", disk);
557 exit(X_STARTUP);
558 }
559 sync();
560 sblock = (struct fs *)sblock_buf;
561 bread(SBOFF, (char *) sblock, SBSIZE);
562 if (sblock->fs_magic != FS_MAGIC)
563 quit("bad sblock magic number\n");
564 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
565 dev_bshift = ffs(dev_bsize) - 1;
566 if (dev_bsize != (1 << dev_bshift))
567 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
568 tp_bshift = ffs(TP_BSIZE) - 1;
569 if (TP_BSIZE != (1 << tp_bshift))
570 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
571 #ifdef FS_44INODEFMT
572 if (sblock->fs_inodefmt >= FS_44INODEFMT)
573 spcl.c_flags |= DR_NEWINODEFMT;
574 #endif
575 maxino = sblock->fs_ipg * sblock->fs_ncg;
576 #endif /* __linux__ */
577 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
578 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
579 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
580 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
581 if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
582 quit("out of memory allocating inode maps\n");
583 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
584
585 nonodump = spcl.c_level < honorlevel;
586
587 msg("Label: %s\n", spcl.c_label);
588
589 #if defined(SIGINFO)
590 (void)signal(SIGINFO, statussig);
591 #endif
592
593 if (!sizest)
594 msg("mapping (Pass I) [regular files]\n");
595 #ifdef __linux__
596 if (directory[0] == 0)
597 anydirskipped = mapfiles(maxino, &tapesize);
598 else
599 anydirskipped = mapfilesfromdir(maxino, &tapesize, directory);
600 #else
601 anydirskipped = mapfiles(maxino, &tapesize);
602 #endif
603
604 if (!sizest)
605 msg("mapping (Pass II) [directories]\n");
606 while (anydirskipped) {
607 anydirskipped = mapdirs(maxino, &tapesize);
608 }
609
610 if (sizest) {
611 printf("%.0f\n", ((double)tapesize + 11) * TP_BSIZE);
612 exit(X_FINOK);
613 } /* stop here for size estimate */
614
615 if (pipeout || unlimited) {
616 tapesize += 11; /* 10 trailer blocks + 1 map header */
617 msg("estimated %ld tape blocks.\n", tapesize);
618 } else {
619 double fetapes;
620
621 if (blocksperfile)
622 fetapes = (double) tapesize / blocksperfile;
623 else if (cartridge) {
624 /* Estimate number of tapes, assuming streaming stops at
625 the end of each block written, and not in mid-block.
626 Assume no erroneous blocks; this can be compensated
627 for with an artificially low tape size. */
628 fetapes =
629 ( (double) tapesize /* blocks */
630 * TP_BSIZE /* bytes/block */
631 * (1.0/density) /* 0.1" / byte " */
632 +
633 (double) tapesize /* blocks */
634 * (1.0/ntrec) /* streaming-stops per block */
635 * 15.48 /* 0.1" / streaming-stop " */
636 ) * (1.0 / tsize ); /* tape / 0.1" " */
637 } else {
638 /* Estimate number of tapes, for old fashioned 9-track
639 tape */
640 int tenthsperirg = (density == 625) ? 3 : 7;
641 fetapes =
642 ( (double) tapesize /* blocks */
643 * TP_BSIZE /* bytes / block */
644 * (1.0/density) /* 0.1" / byte " */
645 +
646 (double) tapesize /* blocks */
647 * (1.0/ntrec) /* IRG's / block */
648 * tenthsperirg /* 0.1" / IRG " */
649 ) * (1.0 / tsize ); /* tape / 0.1" " */
650 }
651 etapes = fetapes; /* truncating assignment */
652 etapes++;
653 /* count the dumped inodes map on each additional tape */
654 tapesize += (etapes - 1) *
655 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
656 tapesize += etapes + 10; /* headers + 10 trailer blks */
657 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
658 tapesize, fetapes);
659 }
660
661 /*
662 * Allocate tape buffer.
663 */
664 if (!alloctape())
665 quit(
666 "can't allocate tape buffers - try a smaller blocking factor.\n");
667
668 startnewtape(1);
669 #ifdef __linux__
670 (void)time4(&(tstart_writing));
671 #else
672 (void)time((time_t *)&(tstart_writing));
673 #endif
674 dumpmap(usedinomap, TS_CLRI, maxino - 1);
675
676 msg("dumping (Pass III) [directories]\n");
677 dirty = 0; /* XXX just to get gcc to shut up */
678 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
679 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
680 dirty = *map++;
681 else
682 dirty >>= 1;
683 if ((dirty & 1) == 0)
684 continue;
685 /*
686 * Skip directory inodes deleted and maybe reallocated
687 */
688 dp = getino(ino);
689 if ((dp->di_mode & IFMT) != IFDIR)
690 continue;
691 #ifdef __linux__
692 /*
693 * Skip directory inodes deleted and not yes reallocated...
694 */
695 if (dp->di_nlink == 0 || dp->di_dtime != 0)
696 continue;
697 (void)dumpdirino(dp, ino);
698 #else
699 (void)dumpino(dp, ino);
700 #endif
701 }
702
703 msg("dumping (Pass IV) [regular files]\n");
704 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
705 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
706 dirty = *map++;
707 else
708 dirty >>= 1;
709 if ((dirty & 1) == 0)
710 continue;
711 /*
712 * Skip inodes deleted and reallocated as directories.
713 */
714 dp = getino(ino);
715 if ((dp->di_mode & IFMT) == IFDIR)
716 continue;
717 #ifdef __linux__
718 /*
719 * No need to check here for deleted and not yes reallocated inodes
720 * since this is done in dumpino().
721 */
722 #endif
723 (void)dumpino(dp, ino);
724 }
725
726 #ifdef __linux__
727 (void)time4(&(tend_writing));
728 #else
729 (void)time((time_t *)&(tend_writing));
730 #endif
731 spcl.c_type = TS_END;
732 for (i = 0; i < ntrec; i++)
733 writeheader(maxino - 1);
734
735 tnow = trewind();
736
737 if (pipeout)
738 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
739 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
740 else
741 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
742 spcl.c_tapea,
743 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
744 spcl.c_volume);
745
746 /* report dump performance, avoid division through zero */
747 if (tend_writing - tstart_writing == 0)
748 msg("finished in less than a second\n");
749 else
750 msg("finished in %d seconds, throughput %d KBytes/sec\n",
751 tend_writing - tstart_writing,
752 spcl.c_tapea / (tend_writing - tstart_writing));
753
754 putdumptime();
755 #ifdef __linux__
756 msg("Date of this level %c dump: %s", level,
757 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
758 #else
759 msg("Date of this level %c dump: %s", level,
760 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
761 #endif
762 msg("Date this dump completed: %s", ctime(&tnow));
763
764 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno);
765 if (compressed) {
766 long tapekb = bytes_written / 1024;
767 double rate = .0005 + (double) spcl.c_tapea / tapekb;
768 msg("Wrote %ldKB uncompressed, %ldKB compressed,"
769 " compression ratio %1.3f\n",
770 spcl.c_tapea, tapekb, rate);
771 }
772
773 broadcast("DUMP IS DONE!\7\7\n");
774 msg("DUMP IS DONE\n");
775 Exit(X_FINOK);
776 /* NOTREACHED */
777 return 0; /* gcc - shut up */
778 }
779
780 static void
781 usage(void)
782 {
783 char white[MAXPATHLEN];
784 int i;
785
786 strncpy(white, __progname, MAXPATHLEN-1);
787 white[MAXPATHLEN-1] = '\0';
788 for (i=0; i<MAXPATHLEN; ++i)
789 if (white[i] != '\0') white[i] = ' ';
790
791 fprintf(stderr,
792 "%s %s\n", __progname, _DUMP_VERSION);
793 fprintf(stderr,
794 "usage:\t%s [-0123456789ac"
795 #ifdef KERBEROS
796 "k"
797 #endif
798 "MnSu"
799 #ifdef HAVE_ZLIB
800 "z"
801 #endif
802 "] [-B records] [-b blocksize] [-d density]\n"
803 "\t%s [-e inode#] [-f file] [-h level] [-s feet] [-T date] filesystem\n"
804 "\t%s [-W | -w]\n", __progname, white, __progname);
805 exit(X_STARTUP);
806 }
807
808 /*
809 * Pick up a numeric argument. It must be nonnegative and in the given
810 * range (except that a vmax of 0 means unlimited).
811 */
812 static long
813 numarg(const char *meaning, long vmin, long vmax)
814 {
815 char *p;
816 long val;
817
818 val = strtol(optarg, &p, 10);
819 if (*p)
820 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
821 if (val < vmin || (vmax && val > vmax))
822 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
823 return (val);
824 }
825
826 void
827 sig(int signo)
828 {
829 switch(signo) {
830 case SIGALRM:
831 case SIGBUS:
832 case SIGFPE:
833 case SIGHUP:
834 case SIGTERM:
835 case SIGTRAP:
836 if (pipeout)
837 quit("Signal on pipe: cannot recover\n");
838 msg("Rewriting attempted as response to unknown signal.\n");
839 (void)fflush(stderr);
840 (void)fflush(stdout);
841 close_rewind();
842 exit(X_REWRITE);
843 /* NOTREACHED */
844 case SIGSEGV:
845 msg("SIGSEGV: ABORTING!\n");
846 (void)signal(SIGSEGV, SIG_DFL);
847 (void)kill(0, SIGSEGV);
848 /* NOTREACHED */
849 }
850 }
851
852 char *
853 rawname(char *cp)
854 {
855 #ifdef __linux__
856 return cp;
857 #else /* __linux__ */
858 static char rawbuf[MAXPATHLEN];
859 char *dp = strrchr(cp, '/');
860
861 if (dp == NULL)
862 return (NULL);
863 *dp = '\0';
864 (void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
865 rawbuf[MAXPATHLEN-1] = '\0';
866 *dp = '/';
867 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
868 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
869 return (rawbuf);
870 #endif /* __linux__ */
871 }
872
873 /*
874 * obsolete --
875 * Change set of key letters and ordered arguments into something
876 * getopt(3) will like.
877 */
878 static void
879 obsolete(int *argcp, char **argvp[])
880 {
881 int argc, flags;
882 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
883
884 /* Setup. */
885 argv = *argvp;
886 argc = *argcp;
887
888 /* Return if no arguments or first argument has leading dash. */
889 ap = argv[1];
890 if (argc == 1 || *ap == '-')
891 return;
892
893 /* Allocate space for new arguments. */
894 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
895 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
896 err(X_STARTUP, "malloc new args");
897
898 *nargv++ = *argv;
899 argv += 2;
900
901 for (flags = 0; *ap; ++ap) {
902 switch (*ap) {
903 case 'B':
904 case 'b':
905 case 'd':
906 case 'e':
907 case 'f':
908 case 'F':
909 case 'h':
910 case 'L':
911 case 's':
912 case 'T':
913 if (*argv == NULL) {
914 warnx("option requires an argument -- %c", *ap);
915 usage();
916 }
917 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
918 err(X_STARTUP, "malloc arg");
919 nargv[0][0] = '-';
920 nargv[0][1] = *ap;
921 (void)strcpy(&nargv[0][2], *argv);
922 ++argv;
923 ++nargv;
924 break;
925 default:
926 if (!flags) {
927 *p++ = '-';
928 flags = 1;
929 }
930 *p++ = *ap;
931 break;
932 }
933 }
934
935 /* Terminate flags. */
936 if (flags) {
937 *p = '\0';
938 *nargv++ = flagsp;
939 }
940
941 /* Copy remaining arguments. */
942 while ((*nargv++ = *argv++));
943
944 /* Update argument count. */
945 *argcp = nargv - *argvp - 1;
946 }
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