]> git.wh0rd.org - dump.git/blob - dump/main.c
git.wh0rd.org / dump.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Fixed dump of a mountpoint which is not an absolute path.
[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@cybercable.fr>, 1999-2000
6 */
7
8 /*-
9 * Copyright (c) 1980, 1991, 1993, 1994
10 * The Regents of the University of California. All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 #ifndef lint
42 static const char rcsid[] =
43 "$Id: main.c,v 1.26 2000/09/26 12:34:52 stelian Exp $";
44 #endif /* not lint */
45
46 #include <sys/param.h>
47 #include <sys/time.h>
48 #ifdef __linux__
49 #include <linux/ext2_fs.h>
50 #include <sys/stat.h>
51 #include <bsdcompat.h>
52 #else
53 #ifdef sunos
54 #include <sys/vnode.h>
55
56 #include <ufs/inode.h>
57 #include <ufs/fs.h>
58 #else
59 #include <ufs/ufs/dinode.h>
60 #include <ufs/ffs/fs.h>
61 #endif
62 #endif
63
64 #include <protocols/dumprestore.h>
65
66 #include <ctype.h>
67 #include <compaterr.h>
68 #include <fcntl.h>
69 #include <fstab.h>
70 #include <signal.h>
71 #include <stdio.h>
72 #include <stdlib.h>
73 #include <string.h>
74 #include <unistd.h>
75
76 #ifdef __linux__
77 #include <ext2fs/ext2fs.h>
78 #endif
79
80 #include "dump.h"
81 #include "pathnames.h"
82 #include "bylabel.h"
83
84 #ifndef SBOFF
85 #define SBOFF (SBLOCK * DEV_BSIZE)
86 #endif
87
88 int notify = 0; /* notify operator flag */
89 int blockswritten = 0; /* number of blocks written on current tape */
90 int tapeno = 0; /* current tape number */
91 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
92 int ntrec = NTREC; /* # tape blocks in each tape record */
93 int cartridge = 0; /* Assume non-cartridge tape */
94 int dokerberos = 0; /* Use Kerberos authentication */
95 long dev_bsize = 1; /* recalculated below */
96 long blocksperfile; /* output blocks per file */
97 char *host = NULL; /* remote host (if any) */
98 int sizest = 0; /* return size estimate only */
99
100 #ifdef __linux__
101 char *__progname;
102 #endif
103
104 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
105 static long numarg __P((const char *, long, long));
106 static void obsolete __P((int *, char **[]));
107 static void usage __P((void));
108
109 ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
110 int iexclude_num = 0; /* number of elements in the list */
111
112 int
113 main(int argc, char *argv[])
114 {
115 register ino_t ino;
116 register int dirty;
117 register struct dinode *dp;
118 register struct fstab *dt;
119 register char *map;
120 register int ch;
121 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
122 ino_t maxino;
123 #ifdef __linux__
124 errcode_t retval;
125 char directory[MAXPATHLEN];
126 char pathname[MAXPATHLEN];
127 #endif
128 time_t tnow;
129 char labelstr[LBLSIZE];
130 char *diskparam;
131
132 spcl.c_date = 0;
133 #ifdef __linux__
134 (void)time4(&spcl.c_date);
135 #else
136 (void)time((time_t *)&spcl.c_date);
137 #endif
138
139 #ifdef __linux__
140 __progname = argv[0];
141 directory[0] = 0;
142 initialize_ext2_error_table();
143 #endif
144
145 tsize = 0; /* Default later, based on 'c' option for cart tapes */
146 eot_script = NULL;
147 if ((tapeprefix = getenv("TAPE")) == NULL)
148 tapeprefix = _PATH_DEFTAPE;
149 dumpdates = _PATH_DUMPDATES;
150 strcpy(labelstr, "none"); /* XXX safe strcpy. */
151 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
152 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
153 level = '0';
154
155 if (argc < 2)
156 usage();
157
158 obsolete(&argc, &argv);
159 #ifdef KERBEROS
160 #define optstring "0123456789aB:b:cd:e:f:F:h:kL:Mns:ST:uWw"
161 #else
162 #define optstring "0123456789aB:b:cd:e:f:F:h:L:Mns:ST:uWw"
163 #endif
164 while ((ch = getopt(argc, argv, optstring)) != -1)
165 #undef optstring
166 switch (ch) {
167 /* dump level */
168 case '0': case '1': case '2': case '3': case '4':
169 case '5': case '6': case '7': case '8': case '9':
170 level = ch;
171 break;
172
173 case 'a': /* `auto-size', Write to EOM. */
174 unlimited = 1;
175 break;
176
177 case 'B': /* blocks per output file */
178 blocksperfile = numarg("number of blocks per file",
179 1L, 0L);
180 break;
181
182 case 'b': /* blocks per tape write */
183 ntrec = numarg("number of blocks per write",
184 1L, 1000L);
185 if (ntrec > maxbsize/1024) {
186 msg("Please choose a blocksize <= %dKB\n",
187 maxbsize/1024);
188 exit(X_STARTUP);
189 }
190 bflag = 1;
191 break;
192
193 case 'c': /* Tape is cart. not 9-track */
194 cartridge = 1;
195 break;
196
197 case 'd': /* density, in bits per inch */
198 density = numarg("density", 10L, 327670L) / 10;
199 if (density >= 625 && !bflag)
200 ntrec = HIGHDENSITYTREC;
201 break;
202
203 /* 04-Feb-00 ILC */
204 case 'e': /* exclude an inode */
205 if (iexclude_num == IEXCLUDE_MAXNUM) {
206 (void)fprintf(stderr, "Too many -e options\n");
207 exit(X_STARTUP);
208 }
209 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
210 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
211 (void)fprintf(stderr, "Cannot exclude inode %ld\n", iexclude_list[iexclude_num-1]);
212 exit(X_STARTUP);
213 }
214 msg("Added %d to exclude list\n",
215 iexclude_list[iexclude_num-1]);
216 break;
217
218 case 'f': /* output file */
219 tapeprefix = optarg;
220 break;
221
222 case 'F': /* end of tape script */
223 eot_script = optarg;
224 break;
225
226 case 'h':
227 honorlevel = numarg("honor level", 0L, 10L);
228 break;
229
230 #ifdef KERBEROS
231 case 'k':
232 dokerberos = 1;
233 break;
234 #endif
235
236 case 'L':
237 /*
238 * Note that although there are LBLSIZE characters,
239 * the last must be '\0', so the limit on strlen()
240 * is really LBLSIZE-1.
241 */
242 strncpy(labelstr, optarg, LBLSIZE);
243 labelstr[LBLSIZE-1] = '\0';
244 if (strlen(optarg) > LBLSIZE-1) {
245 msg(
246 "WARNING Label `%s' is larger than limit of %d characters.\n",
247 optarg, LBLSIZE-1);
248 msg("WARNING: Using truncated label `%s'.\n",
249 labelstr);
250 }
251 break;
252
253 case 'M': /* multi-volume flag */
254 Mflag = 1;
255 break;
256
257 case 'n': /* notify operators */
258 notify = 1;
259 break;
260
261 case 's': /* tape size, feet */
262 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
263 break;
264
265 case 'S':
266 sizest = 1; /* return size estimate only */
267 break;
268
269 case 'T': /* time of last dump */
270 spcl.c_ddate = unctime(optarg);
271 if (spcl.c_ddate < 0) {
272 (void)fprintf(stderr, "bad time \"%s\"\n",
273 optarg);
274 exit(X_STARTUP);
275 }
276 Tflag = 1;
277 lastlevel = '?';
278 break;
279
280 case 'u': /* update dumpdates */
281 uflag = 1;
282 break;
283
284 case 'W': /* what to do */
285 case 'w':
286 lastdump(ch);
287 exit(X_FINOK); /* do nothing else */
288
289 default:
290 usage();
291 }
292 argc -= optind;
293 argv += optind;
294
295 if (argc < 1) {
296 (void)fprintf(stderr, "Must specify disk or filesystem\n");
297 exit(X_STARTUP);
298 }
299 diskparam = *argv++;
300 if (strlen(diskparam) >= MAXPATHLEN) {
301 (void)fprintf(stderr, "Disk or filesystem name too long: %s\n", diskparam);
302 exit(X_STARTUP);
303 }
304 argc--;
305 if (argc >= 1) {
306 (void)fprintf(stderr, "Unknown arguments to dump:");
307 while (argc--)
308 (void)fprintf(stderr, " %s", *argv++);
309 (void)fprintf(stderr, "\n");
310 exit(X_STARTUP);
311 }
312 if (Tflag && uflag) {
313 (void)fprintf(stderr,
314 "You cannot use the T and u flags together.\n");
315 exit(X_STARTUP);
316 }
317 if (strcmp(tapeprefix, "-") == 0) {
318 pipeout++;
319 tapeprefix = "standard output";
320 }
321
322 if (blocksperfile)
323 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
324 else if (!unlimited) {
325 /*
326 * Determine how to default tape size and density
327 *
328 * density tape size
329 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
330 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
331 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
332 * (450*4 - slop)
333 * hilit19 hits again: "
334 */
335 if (density == 0)
336 density = cartridge ? 100 : 160;
337 if (tsize == 0)
338 tsize = cartridge ? 1700L*120L : 2300L*120L;
339 }
340
341 if (strchr(tapeprefix, ':')) {
342 host = tapeprefix;
343 tapeprefix = strchr(host, ':');
344 *tapeprefix++ = '\0';
345 #ifdef RDUMP
346 if (index(tapeprefix, '\n')) {
347 (void)fprintf(stderr, "invalid characters in tape\n");
348 exit(X_STARTUP);
349 }
350 if (rmthost(host) == 0)
351 exit(X_STARTUP);
352 #else
353 (void)fprintf(stderr, "remote dump not enabled\n");
354 exit(X_STARTUP);
355 #endif
356 }
357 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
358
359 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
360 signal(SIGHUP, sig);
361 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
362 signal(SIGTRAP, sig);
363 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
364 signal(SIGFPE, sig);
365 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
366 signal(SIGBUS, sig);
367 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
368 signal(SIGSEGV, sig);
369 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
370 signal(SIGTERM, sig);
371 if (signal(SIGINT, interrupt) == SIG_IGN)
372 signal(SIGINT, SIG_IGN);
373 set_operators(); /* /etc/group snarfed */
374 getfstab(); /* /etc/fstab snarfed */
375
376 disk = get_device_name(diskparam);
377 if (!disk) { /* null means the disk is some form
378 of LABEL= or UID= but it was not
379 found */
380 msg("Cannot find a disk having %s\n", diskparam);
381 exit(X_STARTUP);
382 }
383 /*
384 * disk may end in / and this can confuse
385 * fstabsearch.
386 */
387 if (strlen(disk) > 1 && disk[strlen(disk) - 1] == '/')
388 disk[strlen(disk) - 1] = '\0';
389 /*
390 * disk can be either the full special file name,
391 * the suffix of the special file name,
392 * the special name missing the leading '/',
393 * the file system name with or without the leading '/'.
394 */
395 if ((dt = fstabsearch(disk)) != NULL) {
396 disk = rawname(dt->fs_spec);
397 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
398 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
399 #ifdef __linux__
400 } else {
401 #ifdef HAVE_REALPATH
402 if (realpath(disk, pathname) == NULL)
403 #endif
404 strcpy(pathname, disk);
405 /*
406 * The argument could be now a mountpoint of
407 * a filesystem specified in fstab. Search for it.
408 */
409 if ((dt = fstabsearch(pathname)) != NULL) {
410 disk = rawname(dt->fs_spec);
411 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
412 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
413 } else {
414 /*
415 * The argument was not found in the fstab
416 * assume that this is a subtree and search for it
417 */
418 dt = fstabsearchdir(pathname, directory);
419 if (dt != NULL) {
420 char name[MAXPATHLEN];
421 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
422 (void)snprintf(name, sizeof(name), "%s (dir %s)",
423 dt->fs_file, directory);
424 (void)strncpy(spcl.c_filesys, name, NAMELEN);
425 disk = rawname(dt->fs_spec);
426 } else {
427 (void)strncpy(spcl.c_dev, disk, NAMELEN);
428 (void)strncpy(spcl.c_filesys, "an unlisted file system",
429 NAMELEN);
430 }
431 }
432 }
433 #else
434 } else {
435 (void)strncpy(spcl.c_dev, disk, NAMELEN);
436 (void)strncpy(spcl.c_filesys, "an unlisted file system",
437 NAMELEN);
438 }
439 #endif
440
441 if (directory[0] != 0) {
442 if (level != '0') {
443 (void)fprintf(stderr, "Only level 0 dumps are allowed on a subdirectory\n");
444 exit(X_STARTUP);
445 }
446 if (uflag) {
447 (void)fprintf(stderr, "You can't update the dumpdates file when dumping a subdirectory\n");
448 exit(X_STARTUP);
449 }
450 }
451 spcl.c_dev[NAMELEN-1]='\0';
452 spcl.c_filesys[NAMELEN-1]='\0';
453 (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1);
454 (void)gethostname(spcl.c_host, NAMELEN);
455 spcl.c_level = level - '0';
456 spcl.c_type = TS_TAPE;
457 if (!Tflag)
458 getdumptime(uflag); /* dumpdates snarfed */
459
460 if (spcl.c_ddate == 0 && spcl.c_level) {
461 msg("WARNING: There is no inferior level dump on this filesystem\n");
462 msg("WARNING: Assuming a level 0 dump by default\n");
463 level = '0';
464 spcl.c_level = 0;
465 }
466
467 if (Mflag)
468 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
469 else
470 strncpy(tape, tapeprefix, MAXPATHLEN);
471 tape[MAXPATHLEN - 1] = '\0';
472
473 if (!sizest) {
474
475 msg("Date of this level %c dump: %s", level,
476 #ifdef __linux__
477 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
478 #else
479 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
480 #endif
481 msg("Date of last level %c dump: %s", lastlevel,
482 #ifdef __linux__
483 spcl.c_ddate == 0 ? "the epoch\n" : ctime4(&spcl.c_ddate));
484 #else
485 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
486 #endif
487 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
488 if (host)
489 msgtail("to %s on host %s\n", tape, host);
490 else
491 msgtail("to %s\n", tape);
492 msg("Label: %s\n", labelstr);
493
494 } /* end of size estimate */
495
496 #ifdef __linux__
497 retval = dump_fs_open(disk, &fs);
498 if (retval) {
499 com_err(disk, retval, "while opening filesystem");
500 if (retval == EXT2_ET_REV_TOO_HIGH)
501 printf ("Get a newer version of dump!\n");
502 exit(X_STARTUP);
503 }
504 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
505 com_err(disk, retval, "while opening filesystem");
506 printf ("Get a newer version of dump!\n");
507 exit(X_STARTUP);
508 }
509 if ((diskfd = open(disk, O_RDONLY)) < 0) {
510 msg("Cannot open %s\n", disk);
511 exit(X_STARTUP);
512 }
513 sync();
514 dev_bsize = DEV_BSIZE;
515 dev_bshift = ffs(dev_bsize) - 1;
516 if (dev_bsize != (1 << dev_bshift))
517 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
518 tp_bshift = ffs(TP_BSIZE) - 1;
519 if (TP_BSIZE != (1 << tp_bshift))
520 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
521 maxino = fs->super->s_inodes_count;
522 #if 0
523 spcl.c_flags |= DR_NEWINODEFMT;
524 #endif
525 #else /* __linux __*/
526 if ((diskfd = open(disk, O_RDONLY)) < 0) {
527 msg("Cannot open %s\n", disk);
528 exit(X_STARTUP);
529 }
530 sync();
531 sblock = (struct fs *)sblock_buf;
532 bread(SBOFF, (char *) sblock, SBSIZE);
533 if (sblock->fs_magic != FS_MAGIC)
534 quit("bad sblock magic number\n");
535 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
536 dev_bshift = ffs(dev_bsize) - 1;
537 if (dev_bsize != (1 << dev_bshift))
538 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
539 tp_bshift = ffs(TP_BSIZE) - 1;
540 if (TP_BSIZE != (1 << tp_bshift))
541 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
542 #ifdef FS_44INODEFMT
543 if (sblock->fs_inodefmt >= FS_44INODEFMT)
544 spcl.c_flags |= DR_NEWINODEFMT;
545 #endif
546 maxino = sblock->fs_ipg * sblock->fs_ncg;
547 #endif /* __linux__ */
548 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
549 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
550 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
551 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
552 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
553
554 nonodump = spcl.c_level < honorlevel;
555
556 #if defined(SIGINFO)
557 (void)signal(SIGINFO, statussig);
558 #endif
559
560 if (!sizest)
561 msg("mapping (Pass I) [regular files]\n");
562 #ifdef __linux__
563 if (directory[0] == 0)
564 anydirskipped = mapfiles(maxino, &tapesize);
565 else
566 anydirskipped = mapfilesfromdir(maxino, &tapesize, directory);
567 #else
568 anydirskipped = mapfiles(maxino, &tapesize);
569 #endif
570
571 if (!sizest)
572 msg("mapping (Pass II) [directories]\n");
573 while (anydirskipped) {
574 anydirskipped = mapdirs(maxino, &tapesize);
575 }
576
577 if (sizest) {
578 printf("%.0f\n", ((double)tapesize + 11) * TP_BSIZE);
579 exit(X_FINOK);
580 } /* stop here for size estimate */
581
582 if (pipeout || unlimited) {
583 tapesize += 11; /* 10 trailer blocks + 1 map header */
584 msg("estimated %ld tape blocks.\n", tapesize);
585 } else {
586 double fetapes;
587
588 if (blocksperfile)
589 fetapes = (double) tapesize / blocksperfile;
590 else if (cartridge) {
591 /* Estimate number of tapes, assuming streaming stops at
592 the end of each block written, and not in mid-block.
593 Assume no erroneous blocks; this can be compensated
594 for with an artificially low tape size. */
595 fetapes =
596 ( (double) tapesize /* blocks */
597 * TP_BSIZE /* bytes/block */
598 * (1.0/density) /* 0.1" / byte " */
599 +
600 (double) tapesize /* blocks */
601 * (1.0/ntrec) /* streaming-stops per block */
602 * 15.48 /* 0.1" / streaming-stop " */
603 ) * (1.0 / tsize ); /* tape / 0.1" " */
604 } else {
605 /* Estimate number of tapes, for old fashioned 9-track
606 tape */
607 int tenthsperirg = (density == 625) ? 3 : 7;
608 fetapes =
609 ( (double) tapesize /* blocks */
610 * TP_BSIZE /* bytes / block */
611 * (1.0/density) /* 0.1" / byte " */
612 +
613 (double) tapesize /* blocks */
614 * (1.0/ntrec) /* IRG's / block */
615 * tenthsperirg /* 0.1" / IRG " */
616 ) * (1.0 / tsize ); /* tape / 0.1" " */
617 }
618 etapes = fetapes; /* truncating assignment */
619 etapes++;
620 /* count the dumped inodes map on each additional tape */
621 tapesize += (etapes - 1) *
622 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
623 tapesize += etapes + 10; /* headers + 10 trailer blks */
624 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
625 tapesize, fetapes);
626 }
627
628 /*
629 * Allocate tape buffer.
630 */
631 if (!alloctape())
632 quit(
633 "can't allocate tape buffers - try a smaller blocking factor.\n");
634
635 startnewtape(1);
636 #ifdef __linux__
637 (void)time4(&(tstart_writing));
638 #else
639 (void)time((time_t *)&(tstart_writing));
640 #endif
641 dumpmap(usedinomap, TS_CLRI, maxino - 1);
642
643 msg("dumping (Pass III) [directories]\n");
644 dirty = 0; /* XXX just to get gcc to shut up */
645 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
646 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
647 dirty = *map++;
648 else
649 dirty >>= 1;
650 if ((dirty & 1) == 0)
651 continue;
652 /*
653 * Skip directory inodes deleted and maybe reallocated
654 */
655 dp = getino(ino);
656 if ((dp->di_mode & IFMT) != IFDIR)
657 continue;
658 #ifdef __linux__
659 /*
660 * Skip directory inodes deleted and not yes reallocated...
661 */
662 if (dp->di_nlink == 0 || dp->di_dtime != 0)
663 continue;
664 (void)dumpdirino(dp, ino);
665 #else
666 (void)dumpino(dp, ino);
667 #endif
668 }
669
670 msg("dumping (Pass IV) [regular files]\n");
671 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
672 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
673 dirty = *map++;
674 else
675 dirty >>= 1;
676 if ((dirty & 1) == 0)
677 continue;
678 /*
679 * Skip inodes deleted and reallocated as directories.
680 */
681 dp = getino(ino);
682 if ((dp->di_mode & IFMT) == IFDIR)
683 continue;
684 #ifdef __linux__
685 /*
686 * No need to check here for deleted and not yes reallocated inodes
687 * since this is done in dumpino().
688 */
689 #endif
690 (void)dumpino(dp, ino);
691 }
692
693 #ifdef __linux__
694 (void)time4(&(tend_writing));
695 #else
696 (void)time((time_t *)&(tend_writing));
697 #endif
698 spcl.c_type = TS_END;
699 for (i = 0; i < ntrec; i++)
700 writeheader(maxino - 1);
701
702 tnow = trewind();
703
704 if (pipeout)
705 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
706 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
707 else
708 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
709 spcl.c_tapea,
710 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
711 spcl.c_volume);
712
713 /* report dump performance, avoid division through zero */
714 if (tend_writing - tstart_writing == 0)
715 msg("finished in less than a second\n");
716 else
717 msg("finished in %d seconds, throughput %d KBytes/sec\n",
718 tend_writing - tstart_writing,
719 spcl.c_tapea / (tend_writing - tstart_writing));
720
721 putdumptime();
722 #ifdef __linux__
723 msg("Date of this level %c dump: %s", level,
724 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
725 #else
726 msg("Date of this level %c dump: %s", level,
727 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
728 #endif
729 msg("Date this dump completed: %s", ctime(&tnow));
730
731 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno);
732
733 broadcast("DUMP IS DONE!\7\7\n");
734 msg("DUMP IS DONE\n");
735 Exit(X_FINOK);
736 /* NOTREACHED */
737 return 0; /* gcc - shut up */
738 }
739
740 static void
741 usage(void)
742 {
743 char white[MAXPATHLEN];
744 int i;
745
746 strncpy(white, __progname, MAXPATHLEN-1);
747 white[MAXPATHLEN-1] = '\0';
748 for (i=0; i<MAXPATHLEN; ++i)
749 if (white[i] != '\0') white[i] = ' ';
750
751 fprintf(stderr,
752 "%s %s\n", __progname, _DUMP_VERSION);
753 fprintf(stderr,
754 "usage:\t%s [-0123456789ac"
755 #ifdef KERBEROS
756 "k"
757 #endif
758 "MnSu] [-B records] [-b blocksize] [-d density]\n"
759 "\t%s [-e inode#] [-f file] [-h level] [-s feet] [-T date] filesystem\n"
760 "\t%s [-W | -w]\n", __progname, white, __progname);
761 exit(X_STARTUP);
762 }
763
764 /*
765 * Pick up a numeric argument. It must be nonnegative and in the given
766 * range (except that a vmax of 0 means unlimited).
767 */
768 static long
769 numarg(const char *meaning, long vmin, long vmax)
770 {
771 char *p;
772 long val;
773
774 val = strtol(optarg, &p, 10);
775 if (*p)
776 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
777 if (val < vmin || (vmax && val > vmax))
778 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
779 return (val);
780 }
781
782 void
783 sig(int signo)
784 {
785 switch(signo) {
786 case SIGALRM:
787 case SIGBUS:
788 case SIGFPE:
789 case SIGHUP:
790 case SIGTERM:
791 case SIGTRAP:
792 if (pipeout)
793 quit("Signal on pipe: cannot recover\n");
794 msg("Rewriting attempted as response to unknown signal.\n");
795 (void)fflush(stderr);
796 (void)fflush(stdout);
797 close_rewind();
798 exit(X_REWRITE);
799 /* NOTREACHED */
800 case SIGSEGV:
801 msg("SIGSEGV: ABORTING!\n");
802 (void)signal(SIGSEGV, SIG_DFL);
803 (void)kill(0, SIGSEGV);
804 /* NOTREACHED */
805 }
806 }
807
808 char *
809 rawname(char *cp)
810 {
811 #ifdef __linux__
812 return cp;
813 #else /* __linux__ */
814 static char rawbuf[MAXPATHLEN];
815 char *dp = strrchr(cp, '/');
816
817 if (dp == NULL)
818 return (NULL);
819 *dp = '\0';
820 (void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
821 rawbuf[MAXPATHLEN-1] = '\0';
822 *dp = '/';
823 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
824 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
825 return (rawbuf);
826 #endif /* __linux__ */
827 }
828
829 /*
830 * obsolete --
831 * Change set of key letters and ordered arguments into something
832 * getopt(3) will like.
833 */
834 static void
835 obsolete(int *argcp, char **argvp[])
836 {
837 int argc, flags;
838 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
839
840 /* Setup. */
841 argv = *argvp;
842 argc = *argcp;
843
844 /* Return if no arguments or first argument has leading dash. */
845 ap = argv[1];
846 if (argc == 1 || *ap == '-')
847 return;
848
849 /* Allocate space for new arguments. */
850 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
851 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
852 err(X_STARTUP, "malloc new args");
853
854 *nargv++ = *argv;
855 argv += 2;
856
857 for (flags = 0; *ap; ++ap) {
858 switch (*ap) {
859 case 'B':
860 case 'b':
861 case 'd':
862 case 'e':
863 case 'f':
864 case 'F':
865 case 'h':
866 case 'L':
867 case 's':
868 case 'T':
869 if (*argv == NULL) {
870 warnx("option requires an argument -- %c", *ap);
871 usage();
872 }
873 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
874 err(X_STARTUP, "malloc arg");
875 nargv[0][0] = '-';
876 nargv[0][1] = *ap;
877 (void)strcpy(&nargv[0][2], *argv);
878 ++argv;
879 ++nargv;
880 break;
881 default:
882 if (!flags) {
883 *p++ = '-';
884 flags = 1;
885 }
886 *p++ = *ap;
887 break;
888 }
889 }
890
891 /* Terminate flags. */
892 if (flags) {
893 *p = '\0';
894 *nargv++ = flagsp;
895 }
896
897 /* Copy remaining arguments. */
898 while ((*nargv++ = *argv++));
899
900 /* Update argument count. */
901 *argcp = nargv - *argvp - 1;
902 }
Unnamed repository; edit this file 'description' to name the repository.