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Commit | Line | Data |
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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 <pop@cybercable.fr>, 1999 | |
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 1.11 2000/01/07 19:24:04 tiniou 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 | ||
83 | #ifndef SBOFF | |
84 | #define SBOFF (SBLOCK * DEV_BSIZE) | |
85 | #endif | |
86 | ||
87 | int notify = 0; /* notify operator flag */ | |
88 | int blockswritten = 0; /* number of blocks written on current tape */ | |
89 | int tapeno = 0; /* current tape number */ | |
90 | int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */ | |
91 | int ntrec = NTREC; /* # tape blocks in each tape record */ | |
92 | int cartridge = 0; /* Assume non-cartridge tape */ | |
93 | int dokerberos = 0; /* Use Kerberos authentication */ | |
94 | long dev_bsize = 1; /* recalculated below */ | |
95 | long blocksperfile; /* output blocks per file */ | |
96 | char *host = NULL; /* remote host (if any) */ | |
97 | int sizest = 0; /* return size estimate only */ | |
98 | ||
99 | #ifdef __linux__ | |
100 | char *__progname; | |
101 | #endif | |
102 | ||
103 | int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */ | |
104 | static long numarg __P((const char *, long, long)); | |
105 | static void obsolete __P((int *, char **[])); | |
106 | static void usage __P((void)); | |
107 | ||
108 | int | |
109 | main(int argc, char *argv[]) | |
110 | { | |
111 | register ino_t ino; | |
112 | register int dirty; | |
113 | register struct dinode *dp; | |
114 | register struct fstab *dt; | |
115 | register char *map; | |
116 | register int ch; | |
117 | int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1; | |
118 | ino_t maxino; | |
119 | #ifdef __linux__ | |
120 | errcode_t retval; | |
121 | char directory[NAME_MAX]; | |
122 | char pathname[NAME_MAX]; | |
123 | #endif | |
124 | time_t tnow; | |
125 | char labelstr[LBLSIZE]; | |
126 | ||
127 | spcl.c_date = 0; | |
128 | #ifdef __linux__ | |
129 | (void)time4(&spcl.c_date); | |
130 | #else | |
131 | (void)time((time_t *)&spcl.c_date); | |
132 | #endif | |
133 | ||
134 | #ifdef __linux__ | |
135 | __progname = argv[0]; | |
136 | directory[0] = 0; | |
137 | initialize_ext2_error_table(); | |
138 | #endif | |
139 | ||
140 | tsize = 0; /* Default later, based on 'c' option for cart tapes */ | |
141 | if ((tapeprefix = getenv("TAPE")) == NULL) | |
142 | tapeprefix = _PATH_DEFTAPE; | |
143 | dumpdates = _PATH_DUMPDATES; | |
144 | temp = _PATH_DTMP; | |
145 | strcpy(labelstr, "none"); /* XXX safe strcpy. */ | |
146 | if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) | |
147 | quit("TP_BSIZE must be a multiple of DEV_BSIZE\n"); | |
148 | level = '0'; | |
149 | ||
150 | if (argc < 2) | |
151 | usage(); | |
152 | ||
153 | obsolete(&argc, &argv); | |
154 | #ifdef KERBEROS | |
155 | #define optstring "0123456789aB:b:cd:f:h:kL:Mns:ST:uWw" | |
156 | #else | |
157 | #define optstring "0123456789aB:b:cd:f:h:L:Mns:ST:uWw" | |
158 | #endif | |
159 | while ((ch = getopt(argc, argv, optstring)) != -1) | |
160 | #undef optstring | |
161 | switch (ch) { | |
162 | /* dump level */ | |
163 | case '0': case '1': case '2': case '3': case '4': | |
164 | case '5': case '6': case '7': case '8': case '9': | |
165 | level = ch; | |
166 | break; | |
167 | ||
168 | case 'a': /* `auto-size', Write to EOM. */ | |
169 | unlimited = 1; | |
170 | break; | |
171 | ||
172 | case 'B': /* blocks per output file */ | |
173 | blocksperfile = numarg("number of blocks per file", | |
174 | 1L, 0L); | |
175 | break; | |
176 | ||
177 | case 'b': /* blocks per tape write */ | |
178 | ntrec = numarg("number of blocks per write", | |
179 | 1L, 1000L); | |
180 | if (ntrec > maxbsize/1024) { | |
181 | msg("Please choose a blocksize <= %dKB\n", | |
182 | maxbsize/1024); | |
183 | exit(X_STARTUP); | |
184 | } | |
185 | bflag = 1; | |
186 | break; | |
187 | ||
188 | case 'c': /* Tape is cart. not 9-track */ | |
189 | cartridge = 1; | |
190 | break; | |
191 | ||
192 | case 'd': /* density, in bits per inch */ | |
193 | density = numarg("density", 10L, 327670L) / 10; | |
194 | if (density >= 625 && !bflag) | |
195 | ntrec = HIGHDENSITYTREC; | |
196 | break; | |
197 | ||
198 | case 'f': /* output file */ | |
199 | tapeprefix = optarg; | |
200 | break; | |
201 | ||
202 | case 'h': | |
203 | honorlevel = numarg("honor level", 0L, 10L); | |
204 | break; | |
205 | ||
206 | #ifdef KERBEROS | |
207 | case 'k': | |
208 | dokerberos = 1; | |
209 | break; | |
210 | #endif | |
211 | ||
212 | case 'L': | |
213 | /* | |
214 | * Note that although there are LBLSIZE characters, | |
215 | * the last must be '\0', so the limit on strlen() | |
216 | * is really LBLSIZE-1. | |
217 | */ | |
218 | strncpy(labelstr, optarg, LBLSIZE); | |
219 | labelstr[LBLSIZE-1] = '\0'; | |
220 | if (strlen(optarg) > LBLSIZE-1) { | |
221 | msg( | |
222 | "WARNING Label `%s' is larger than limit of %d characters.\n", | |
223 | optarg, LBLSIZE-1); | |
224 | msg("WARNING: Using truncated label `%s'.\n", | |
225 | labelstr); | |
226 | } | |
227 | break; | |
228 | ||
229 | case 'M': /* multi-volume flag */ | |
230 | Mflag = 1; | |
231 | break; | |
232 | ||
233 | case 'n': /* notify operators */ | |
234 | notify = 1; | |
235 | break; | |
236 | ||
237 | case 's': /* tape size, feet */ | |
238 | tsize = numarg("tape size", 1L, 0L) * 12 * 10; | |
239 | break; | |
240 | ||
241 | case 'S': | |
242 | sizest = 1; /* return size estimate only */ | |
243 | break; | |
244 | ||
245 | case 'T': /* time of last dump */ | |
246 | spcl.c_ddate = unctime(optarg); | |
247 | if (spcl.c_ddate < 0) { | |
248 | (void)fprintf(stderr, "bad time \"%s\"\n", | |
249 | optarg); | |
250 | exit(X_STARTUP); | |
251 | } | |
252 | Tflag = 1; | |
253 | lastlevel = '?'; | |
254 | break; | |
255 | ||
256 | case 'u': /* update dumpdates */ | |
257 | uflag = 1; | |
258 | break; | |
259 | ||
260 | case 'W': /* what to do */ | |
261 | case 'w': | |
262 | lastdump(ch); | |
263 | exit(X_FINOK); /* do nothing else */ | |
264 | ||
265 | default: | |
266 | usage(); | |
267 | } | |
268 | argc -= optind; | |
269 | argv += optind; | |
270 | ||
271 | if (argc < 1) { | |
272 | (void)fprintf(stderr, "Must specify disk or filesystem\n"); | |
273 | exit(X_STARTUP); | |
274 | } | |
275 | disk = *argv++; | |
276 | argc--; | |
277 | if (argc >= 1) { | |
278 | (void)fprintf(stderr, "Unknown arguments to dump:"); | |
279 | while (argc--) | |
280 | (void)fprintf(stderr, " %s", *argv++); | |
281 | (void)fprintf(stderr, "\n"); | |
282 | exit(X_STARTUP); | |
283 | } | |
284 | if (Tflag && uflag) { | |
285 | (void)fprintf(stderr, | |
286 | "You cannot use the T and u flags together.\n"); | |
287 | exit(X_STARTUP); | |
288 | } | |
289 | if (strcmp(tapeprefix, "-") == 0) { | |
290 | pipeout++; | |
291 | tapeprefix = "standard output"; | |
292 | } | |
293 | ||
294 | if (blocksperfile) | |
295 | blocksperfile = blocksperfile / ntrec * ntrec; /* round down */ | |
296 | else if (!unlimited) { | |
297 | /* | |
298 | * Determine how to default tape size and density | |
299 | * | |
300 | * density tape size | |
301 | * 9-track 1600 bpi (160 bytes/.1") 2300 ft. | |
302 | * 9-track 6250 bpi (625 bytes/.1") 2300 ft. | |
303 | * cartridge 8000 bpi (100 bytes/.1") 1700 ft. | |
304 | * (450*4 - slop) | |
305 | * hilit19 hits again: " | |
306 | */ | |
307 | if (density == 0) | |
308 | density = cartridge ? 100 : 160; | |
309 | if (tsize == 0) | |
310 | tsize = cartridge ? 1700L*120L : 2300L*120L; | |
311 | } | |
312 | ||
313 | if (strchr(tapeprefix, ':')) { | |
314 | host = tapeprefix; | |
315 | tapeprefix = strchr(host, ':'); | |
316 | *tapeprefix++ = '\0'; | |
317 | #ifdef RDUMP | |
318 | if (index(tapeprefix, '\n')) { | |
319 | (void)fprintf(stderr, "invalid characters in tape\n"); | |
320 | exit(X_STARTUP); | |
321 | } | |
322 | if (rmthost(host) == 0) | |
323 | exit(X_STARTUP); | |
324 | #else | |
325 | (void)fprintf(stderr, "remote dump not enabled\n"); | |
326 | exit(X_STARTUP); | |
327 | #endif | |
328 | } | |
329 | (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */ | |
330 | ||
331 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) | |
332 | signal(SIGHUP, sig); | |
333 | if (signal(SIGTRAP, SIG_IGN) != SIG_IGN) | |
334 | signal(SIGTRAP, sig); | |
335 | if (signal(SIGFPE, SIG_IGN) != SIG_IGN) | |
336 | signal(SIGFPE, sig); | |
337 | if (signal(SIGBUS, SIG_IGN) != SIG_IGN) | |
338 | signal(SIGBUS, sig); | |
339 | if (signal(SIGSEGV, SIG_IGN) != SIG_IGN) | |
340 | signal(SIGSEGV, sig); | |
341 | if (signal(SIGTERM, SIG_IGN) != SIG_IGN) | |
342 | signal(SIGTERM, sig); | |
343 | if (signal(SIGINT, interrupt) == SIG_IGN) | |
344 | signal(SIGINT, SIG_IGN); | |
345 | set_operators(); /* /etc/group snarfed */ | |
346 | getfstab(); /* /etc/fstab snarfed */ | |
347 | /* | |
348 | * disk can be either the full special file name, | |
349 | * the suffix of the special file name, | |
350 | * the special name missing the leading '/', | |
351 | * the file system name with or without the leading '/'. | |
352 | */ | |
353 | if ((dt = fstabsearch(disk)) != NULL) { | |
354 | disk = rawname(dt->fs_spec); | |
355 | (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN); | |
356 | (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN); | |
357 | #ifdef __linux__ | |
358 | } else { | |
359 | /* | |
360 | * The argument was not found in the fstab | |
361 | * assume that this is a subtree and search for it | |
362 | */ | |
363 | #ifdef HAVE_REALPATH | |
364 | if (realpath(disk, pathname) == NULL) | |
365 | #endif | |
366 | strcpy(pathname, disk); | |
367 | dt = fstabsearchdir(pathname, directory); | |
368 | if (dt != NULL) { | |
369 | char name[MAXPATHLEN]; | |
370 | (void)sprintf(name, "%s (dir %s)", | |
371 | dt->fs_spec, directory); | |
372 | (void)strncpy(spcl.c_dev, name, NAMELEN); | |
373 | (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN); | |
374 | disk = rawname(dt->fs_spec); | |
375 | } else { | |
376 | (void)strncpy(spcl.c_dev, disk, NAMELEN); | |
377 | (void)strncpy(spcl.c_filesys, "an unlisted file system", | |
378 | NAMELEN); | |
379 | } | |
380 | } | |
381 | #else | |
382 | } else { | |
383 | (void)strncpy(spcl.c_dev, disk, NAMELEN); | |
384 | (void)strncpy(spcl.c_filesys, "an unlisted file system", | |
385 | NAMELEN); | |
386 | } | |
387 | #endif | |
388 | spcl.c_dev[NAMELEN-1]='\0'; | |
389 | spcl.c_filesys[NAMELEN-1]='\0'; | |
390 | (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1); | |
391 | (void)gethostname(spcl.c_host, NAMELEN); | |
392 | spcl.c_level = level - '0'; | |
393 | spcl.c_type = TS_TAPE; | |
394 | if (!Tflag) | |
395 | getdumptime(uflag); /* dumpdates snarfed */ | |
396 | ||
397 | if (spcl.c_ddate == 0 && spcl.c_level) { | |
398 | msg("WARNING: There is no inferior level dump on this filesystem\n"); | |
399 | msg("WARNING: Assuming a level 0 dump by default\n"); | |
400 | level = '0'; | |
401 | spcl.c_level = 0; | |
402 | } | |
403 | ||
404 | if (Mflag) | |
405 | snprintf(tape, NAME_MAX, "%s%03d", tapeprefix, tapeno + 1); | |
406 | else | |
407 | strncpy(tape, tapeprefix, NAME_MAX); | |
408 | tape[NAME_MAX - 1] = '\0'; | |
409 | ||
410 | if (!sizest) { | |
411 | ||
412 | msg("Date of this level %c dump: %s", level, | |
413 | #ifdef __linux__ | |
414 | spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date)); | |
415 | #else | |
416 | spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date)); | |
417 | #endif | |
418 | msg("Date of last level %c dump: %s", lastlevel, | |
419 | #ifdef __linux__ | |
420 | spcl.c_ddate == 0 ? "the epoch\n" : ctime4(&spcl.c_ddate)); | |
421 | #else | |
422 | spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate)); | |
423 | #endif | |
424 | msg("Dumping %s ", disk); | |
425 | if (dt != NULL) | |
426 | msgtail("(%s) ", dt->fs_file); | |
427 | if (host) | |
428 | msgtail("to %s on host %s\n", tape, host); | |
429 | else | |
430 | msgtail("to %s\n", tape); | |
431 | msg("Label: %s\n", labelstr); | |
432 | ||
433 | } /* end of size estimate */ | |
434 | ||
435 | #ifdef __linux__ | |
436 | retval = dump_fs_open(disk, &fs); | |
437 | if (retval) { | |
438 | com_err(disk, retval, "while opening filesystem"); | |
439 | if (retval == EXT2_ET_REV_TOO_HIGH) | |
440 | printf ("Get a newer version of dump!\n"); | |
441 | exit(X_STARTUP); | |
442 | } | |
443 | if (fs->super->s_rev_level > DUMP_CURRENT_REV) { | |
444 | com_err(disk, retval, "while opening filesystem"); | |
445 | printf ("Get a newer version of dump!\n"); | |
446 | exit(X_STARTUP); | |
447 | } | |
448 | if ((diskfd = open(disk, O_RDONLY)) < 0) { | |
449 | msg("Cannot open %s\n", disk); | |
450 | exit(X_STARTUP); | |
451 | } | |
452 | sync(); | |
453 | dev_bsize = DEV_BSIZE; | |
454 | dev_bshift = ffs(dev_bsize) - 1; | |
455 | if (dev_bsize != (1 << dev_bshift)) | |
456 | quit("dev_bsize (%d) is not a power of 2", dev_bsize); | |
457 | tp_bshift = ffs(TP_BSIZE) - 1; | |
458 | if (TP_BSIZE != (1 << tp_bshift)) | |
459 | quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); | |
460 | maxino = fs->super->s_inodes_count; | |
461 | #if 0 | |
462 | spcl.c_flags |= DR_NEWINODEFMT; | |
463 | #endif | |
464 | #else /* __linux __*/ | |
465 | if ((diskfd = open(disk, O_RDONLY)) < 0) { | |
466 | msg("Cannot open %s\n", disk); | |
467 | exit(X_STARTUP); | |
468 | } | |
469 | sync(); | |
470 | sblock = (struct fs *)sblock_buf; | |
471 | bread(SBOFF, (char *) sblock, SBSIZE); | |
472 | if (sblock->fs_magic != FS_MAGIC) | |
473 | quit("bad sblock magic number\n"); | |
474 | dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1); | |
475 | dev_bshift = ffs(dev_bsize) - 1; | |
476 | if (dev_bsize != (1 << dev_bshift)) | |
477 | quit("dev_bsize (%d) is not a power of 2", dev_bsize); | |
478 | tp_bshift = ffs(TP_BSIZE) - 1; | |
479 | if (TP_BSIZE != (1 << tp_bshift)) | |
480 | quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); | |
481 | #ifdef FS_44INODEFMT | |
482 | if (sblock->fs_inodefmt >= FS_44INODEFMT) | |
483 | spcl.c_flags |= DR_NEWINODEFMT; | |
484 | #endif | |
485 | maxino = sblock->fs_ipg * sblock->fs_ncg; | |
486 | #endif /* __linux__ */ | |
487 | mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE); | |
488 | usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); | |
489 | dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char)); | |
490 | dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char)); | |
491 | tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); | |
492 | ||
493 | nonodump = spcl.c_level < honorlevel; | |
494 | ||
495 | #if defined(SIGINFO) | |
496 | (void)signal(SIGINFO, statussig); | |
497 | #endif | |
498 | ||
499 | if (!sizest) | |
500 | msg("mapping (Pass I) [regular files]\n"); | |
501 | #ifdef __linux__ | |
502 | if (directory[0] == 0) | |
503 | anydirskipped = mapfiles(maxino, &tapesize); | |
504 | else | |
505 | anydirskipped = mapfilesfromdir(maxino, &tapesize, directory); | |
506 | #else | |
507 | anydirskipped = mapfiles(maxino, &tapesize); | |
508 | #endif | |
509 | ||
510 | if (!sizest) | |
511 | msg("mapping (Pass II) [directories]\n"); | |
512 | while (anydirskipped) { | |
513 | anydirskipped = mapdirs(maxino, &tapesize); | |
514 | } | |
515 | ||
516 | if (sizest) { | |
517 | printf("%.0f\n", ((double)tapesize + 10) * TP_BSIZE); | |
518 | exit(X_FINOK); | |
519 | } /* stop here for size estimate */ | |
520 | ||
521 | if (pipeout || unlimited) { | |
522 | tapesize += 10; /* 10 trailer blocks */ | |
523 | msg("estimated %ld tape blocks.\n", tapesize); | |
524 | } else { | |
525 | double fetapes; | |
526 | ||
527 | if (blocksperfile) | |
528 | fetapes = (double) tapesize / blocksperfile; | |
529 | else if (cartridge) { | |
530 | /* Estimate number of tapes, assuming streaming stops at | |
531 | the end of each block written, and not in mid-block. | |
532 | Assume no erroneous blocks; this can be compensated | |
533 | for with an artificially low tape size. */ | |
534 | fetapes = | |
535 | ( (double) tapesize /* blocks */ | |
536 | * TP_BSIZE /* bytes/block */ | |
537 | * (1.0/density) /* 0.1" / byte " */ | |
538 | + | |
539 | (double) tapesize /* blocks */ | |
540 | * (1.0/ntrec) /* streaming-stops per block */ | |
541 | * 15.48 /* 0.1" / streaming-stop " */ | |
542 | ) * (1.0 / tsize ); /* tape / 0.1" " */ | |
543 | } else { | |
544 | /* Estimate number of tapes, for old fashioned 9-track | |
545 | tape */ | |
546 | int tenthsperirg = (density == 625) ? 3 : 7; | |
547 | fetapes = | |
548 | ( (double) tapesize /* blocks */ | |
549 | * TP_BSIZE /* bytes / block */ | |
550 | * (1.0/density) /* 0.1" / byte " */ | |
551 | + | |
552 | (double) tapesize /* blocks */ | |
553 | * (1.0/ntrec) /* IRG's / block */ | |
554 | * tenthsperirg /* 0.1" / IRG " */ | |
555 | ) * (1.0 / tsize ); /* tape / 0.1" " */ | |
556 | } | |
557 | etapes = fetapes; /* truncating assignment */ | |
558 | etapes++; | |
559 | /* count the dumped inodes map on each additional tape */ | |
560 | tapesize += (etapes - 1) * | |
561 | (howmany(mapsize * sizeof(char), TP_BSIZE) + 1); | |
562 | tapesize += etapes + 10; /* headers + 10 trailer blks */ | |
563 | msg("estimated %ld tape blocks on %3.2f tape(s).\n", | |
564 | tapesize, fetapes); | |
565 | } | |
566 | ||
567 | /* | |
568 | * Allocate tape buffer. | |
569 | */ | |
570 | if (!alloctape()) | |
571 | quit( | |
572 | "can't allocate tape buffers - try a smaller blocking factor.\n"); | |
573 | ||
574 | startnewtape(1); | |
575 | #ifdef __linux__ | |
576 | (void)time4(&(tstart_writing)); | |
577 | #else | |
578 | (void)time((time_t *)&(tstart_writing)); | |
579 | #endif | |
580 | dumpmap(usedinomap, TS_CLRI, maxino - 1); | |
581 | ||
582 | msg("dumping (Pass III) [directories]\n"); | |
583 | dirty = 0; /* XXX just to get gcc to shut up */ | |
584 | for (map = dumpdirmap, ino = 1; ino < maxino; ino++) { | |
585 | if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ | |
586 | dirty = *map++; | |
587 | else | |
588 | dirty >>= 1; | |
589 | if ((dirty & 1) == 0) | |
590 | continue; | |
591 | /* | |
592 | * Skip directory inodes deleted and maybe reallocated | |
593 | */ | |
594 | dp = getino(ino); | |
595 | if ((dp->di_mode & IFMT) != IFDIR) | |
596 | continue; | |
597 | #ifdef __linux__ | |
598 | (void)dumpdirino(dp, ino); | |
599 | #else | |
600 | (void)dumpino(dp, ino); | |
601 | #endif | |
602 | } | |
603 | ||
604 | msg("dumping (Pass IV) [regular files]\n"); | |
605 | for (map = dumpinomap, ino = 1; ino < maxino; ino++) { | |
606 | int mode; | |
607 | ||
608 | if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */ | |
609 | dirty = *map++; | |
610 | else | |
611 | dirty >>= 1; | |
612 | if ((dirty & 1) == 0) | |
613 | continue; | |
614 | /* | |
615 | * Skip inodes deleted and reallocated as directories. | |
616 | */ | |
617 | dp = getino(ino); | |
618 | mode = dp->di_mode & IFMT; | |
619 | if (mode == IFDIR) | |
620 | continue; | |
621 | (void)dumpino(dp, ino); | |
622 | } | |
623 | ||
624 | #ifdef __linux__ | |
625 | (void)time4(&(tend_writing)); | |
626 | #else | |
627 | (void)time((time_t *)&(tend_writing)); | |
628 | #endif | |
629 | spcl.c_type = TS_END; | |
630 | for (i = 0; i < ntrec; i++) | |
631 | writeheader(maxino - 1); | |
632 | if (pipeout) | |
633 | msg("DUMP: %ld tape blocks\n", spcl.c_tapea); | |
634 | else | |
635 | msg("DUMP: %ld tape blocks on %d volumes(s)\n", | |
636 | spcl.c_tapea, spcl.c_volume); | |
637 | ||
638 | /* report dump performance, avoid division through zero */ | |
639 | if (tend_writing - tstart_writing == 0) | |
640 | msg("finished in less than a second\n"); | |
641 | else | |
642 | msg("finished in %d seconds, throughput %d KBytes/sec\n", | |
643 | tend_writing - tstart_writing, | |
644 | spcl.c_tapea / (tend_writing - tstart_writing)); | |
645 | ||
646 | tnow = do_stats(); | |
647 | putdumptime(); | |
648 | #ifdef __linux__ | |
649 | msg("DUMP: Date of this level %c dump: %s", level, | |
650 | spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date)); | |
651 | #else | |
652 | msg("DUMP: Date of this level %c dump: %s", level, | |
653 | spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date)); | |
654 | #endif | |
655 | msg("DUMP: Date this dump completed: %s", ctime(&tnow)); | |
656 | ||
657 | msg("DUMP: Average transfer rate: %ld KB/s\n", xferrate / tapeno); | |
658 | ||
659 | trewind(); | |
660 | broadcast("DUMP IS DONE!\7\7\n"); | |
661 | msg("DUMP IS DONE\n"); | |
662 | Exit(X_FINOK); | |
663 | /* NOTREACHED */ | |
664 | return 0; /* gcc - shut up */ | |
665 | } | |
666 | ||
667 | static void | |
668 | usage(void) | |
669 | { | |
670 | char white[MAXPATHLEN]; | |
671 | int i; | |
672 | ||
673 | strncpy(white, __progname, MAXPATHLEN-1); | |
674 | white[MAXPATHLEN-1] = '\0'; | |
675 | for (i=0; i<MAXPATHLEN; ++i) | |
676 | if (white[i] != '\0') white[i] = ' '; | |
677 | ||
678 | fprintf(stderr, | |
679 | "%s %s\n", __progname, _DUMP_VERSION); | |
680 | fprintf(stderr, | |
681 | "usage:\t%s [-0123456789ac" | |
682 | #ifdef KERBEROS | |
683 | "k" | |
684 | #endif | |
685 | "MnSu] [-B records] [-b blocksize] [-d density]\n" | |
686 | "\t%s [-f file] [-h level] [-s feet] [-T date] filesystem\n" | |
687 | "\t%s [-W | -w]\n", __progname, white, __progname); | |
688 | exit(X_STARTUP); | |
689 | } | |
690 | ||
691 | /* | |
692 | * Pick up a numeric argument. It must be nonnegative and in the given | |
693 | * range (except that a vmax of 0 means unlimited). | |
694 | */ | |
695 | static long | |
696 | numarg(const char *meaning, long vmin, long vmax) | |
697 | { | |
698 | char *p; | |
699 | long val; | |
700 | ||
701 | val = strtol(optarg, &p, 10); | |
702 | if (*p) | |
703 | errx(X_STARTUP, "illegal %s -- %s", meaning, optarg); | |
704 | if (val < vmin || (vmax && val > vmax)) | |
705 | errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax); | |
706 | return (val); | |
707 | } | |
708 | ||
709 | void | |
710 | sig(int signo) | |
711 | { | |
712 | switch(signo) { | |
713 | case SIGALRM: | |
714 | case SIGBUS: | |
715 | case SIGFPE: | |
716 | case SIGHUP: | |
717 | case SIGTERM: | |
718 | case SIGTRAP: | |
719 | if (pipeout) | |
720 | quit("Signal on pipe: cannot recover\n"); | |
721 | msg("Rewriting attempted as response to unknown signal.\n"); | |
722 | (void)fflush(stderr); | |
723 | (void)fflush(stdout); | |
724 | close_rewind(); | |
725 | exit(X_REWRITE); | |
726 | /* NOTREACHED */ | |
727 | case SIGSEGV: | |
728 | msg("SIGSEGV: ABORTING!\n"); | |
729 | (void)signal(SIGSEGV, SIG_DFL); | |
730 | (void)kill(0, SIGSEGV); | |
731 | /* NOTREACHED */ | |
732 | } | |
733 | } | |
734 | ||
735 | char * | |
736 | rawname(char *cp) | |
737 | { | |
738 | #ifdef __linux__ | |
739 | return cp; | |
740 | #else /* __linux__ */ | |
741 | static char rawbuf[MAXPATHLEN]; | |
742 | char *dp = strrchr(cp, '/'); | |
743 | ||
744 | if (dp == NULL) | |
745 | return (NULL); | |
746 | *dp = '\0'; | |
747 | (void)strncpy(rawbuf, cp, MAXPATHLEN - 1); | |
748 | rawbuf[MAXPATHLEN-1] = '\0'; | |
749 | *dp = '/'; | |
750 | (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf)); | |
751 | (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf)); | |
752 | return (rawbuf); | |
753 | #endif /* __linux__ */ | |
754 | } | |
755 | ||
756 | /* | |
757 | * obsolete -- | |
758 | * Change set of key letters and ordered arguments into something | |
759 | * getopt(3) will like. | |
760 | */ | |
761 | static void | |
762 | obsolete(int *argcp, char **argvp[]) | |
763 | { | |
764 | int argc, flags; | |
765 | char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL; | |
766 | ||
767 | /* Setup. */ | |
768 | argv = *argvp; | |
769 | argc = *argcp; | |
770 | ||
771 | /* Return if no arguments or first argument has leading dash. */ | |
772 | ap = argv[1]; | |
773 | if (argc == 1 || *ap == '-') | |
774 | return; | |
775 | ||
776 | /* Allocate space for new arguments. */ | |
777 | if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || | |
778 | (p = flagsp = malloc(strlen(ap) + 2)) == NULL) | |
779 | err(X_STARTUP, "malloc new args"); | |
780 | ||
781 | *nargv++ = *argv; | |
782 | argv += 2; | |
783 | ||
784 | for (flags = 0; *ap; ++ap) { | |
785 | switch (*ap) { | |
786 | case 'B': | |
787 | case 'b': | |
788 | case 'd': | |
789 | case 'f': | |
790 | case 'h': | |
791 | case 's': | |
792 | case 'T': | |
793 | if (*argv == NULL) { | |
794 | warnx("option requires an argument -- %c", *ap); | |
795 | usage(); | |
796 | } | |
797 | if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) | |
798 | err(X_STARTUP, "malloc arg"); | |
799 | nargv[0][0] = '-'; | |
800 | nargv[0][1] = *ap; | |
801 | (void)strcpy(&nargv[0][2], *argv); | |
802 | ++argv; | |
803 | ++nargv; | |
804 | break; | |
805 | default: | |
806 | if (!flags) { | |
807 | *p++ = '-'; | |
808 | flags = 1; | |
809 | } | |
810 | *p++ = *ap; | |
811 | break; | |
812 | } | |
813 | } | |
814 | ||
815 | /* Terminate flags. */ | |
816 | if (flags) { | |
817 | *p = '\0'; | |
818 | *nargv++ = flagsp; | |
819 | } | |
820 | ||
821 | /* Copy remaining arguments. */ | |
822 | while ((*nargv++ = *argv++)); | |
823 | ||
824 | /* Update argument count. */ | |
825 | *argcp = nargv - *argvp - 1; | |
826 | } |