2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <stelian@popies.net>, 1999-2000
6 * Stelian Pop <stelian@popies.net> - AlcĂ´ve <www.alcove.com>, 2000-2002
10 * Copyright (c) 1983, 1993
11 * The Regents of the University of California. All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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.
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
43 static const char rcsid[] =
44 "$Id: main.c,v 1.43 2003/03/26 10:58:22 stelian Exp $";
48 #include <compatlfs.h>
50 #include <sys/param.h>
57 #ifdef HAVE_EXT2FS_EXT2_FS_H
58 #include <ext2fs/ext2_fs.h>
60 #include <linux/ext2_fs.h>
62 #include <bsdcompat.h>
66 #include <ufs/ufs/dinode.h>
67 #endif /* __linux__ */
68 #include <protocols/dumprestore.h>
70 #include <compaterr.h>
76 #include <ext2fs/ext2fs.h>
80 #include "pathnames.h"
84 int aflag = 0, bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
85 int hflag = 1, mflag = 1, Mflag = 0, Nflag = 0, Vflag = 0, zflag = 0;
86 int uflag = 0, lflag = 0, Lflag = 0, oflag = 0;
94 char *usedinomap = NULL;
100 int compare_ignore_not_found;
102 char filesys[NAMELEN];
103 static const char *stdin_opt = NULL;
104 char *bot_script = NULL;
105 dump_ino_t volinfo[TP_NINOS];
114 int createtapeposflag;
115 unsigned long qfadumpdate;
116 long long curtapepos;
119 #if defined(__linux__) || defined(sunos)
123 static void obsolete __P((int *, char **[]));
124 static void usage __P((void));
125 static void use_stdin __P((const char *));
127 #define FORCED_UMASK (077)
130 main(int argc, char *argv[])
134 char *inputdev = _PATH_DEFTAPE;
135 char *symtbl = "./restoresymtable";
136 char *p, name[MAXPATHLEN];
137 FILE *filelist = NULL;
138 char fname[MAXPATHLEN];
141 time_t tistart, tiend, titaken;
145 createtapeposflag = 0;
148 /* Temp files should *not* be readable. We set permissions later. */
149 orig_umask = umask(FORCED_UMASK);
151 #if defined(__linux__) || defined(sunos)
152 __progname = argv[0];
158 if ((inputdev = getenv("TAPE")) == NULL)
159 inputdev = _PATH_DEFTAPE;
160 if ((tmpdir = getenv("TMPDIR")) == NULL)
162 if ((tmpdir = strdup(tmpdir)) == NULL)
163 err(1, "malloc tmpdir");
164 for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
166 obsolete(&argc, &argv);
167 while ((ch = getopt(argc, argv,
176 "Rrs:tT:uvVxX:y")) != -1)
186 /* Change default tape blocksize. */
188 ntrec = strtol(optarg, &p, 10);
190 errx(1, "illegal blocksize -- %s", optarg);
192 errx(1, "block size must be greater than 0");
198 strncpy(filesys, optarg, NAMELEN);
199 filesys[NAMELEN - 1] = '\0';
208 if( !strcmp(optarg,"-") )
234 "%c and %c options are mutually exclusive",
239 gTapeposfile = optarg;
240 createtapeposflag = 1;
249 Lflag = strtol(optarg, &p, 10);
251 errx(1, "illegal limit -- %s", optarg);
253 errx(1, "limit must be greater than 0");
269 gTapeposfile = optarg;
275 /* Dumpnum (skip to) for multifile dump tapes. */
276 dumpnum = strtol(optarg, &p, 10);
278 errx(1, "illegal dump number -- %s", optarg);
280 errx(1, "dump number must be greater than 0");
292 if( !strcmp(optarg,"-") ) {
297 if ( !(filelist = fopen(optarg,"r")) )
298 errx(1, "can't open file for reading -- %s", optarg);
310 errx(1, "none of C, i, R, r, t or x options specified");
313 if (!mflag && tapeposflag)
314 errx(1, "m and Q options are mutually exclusive");
316 if (tapeposflag && command != 'i' && command != 'x' && command != 't')
317 errx(1, "Q option is not valid for %c command", command);
320 if (Afile && command != 'i' && command != 'x' && command != 't')
321 errx(1, "A option is not valid for %c command", command);
323 if (signal(SIGINT, onintr) == SIG_IGN)
324 (void) signal(SIGINT, SIG_IGN);
325 if (signal(SIGTERM, onintr) == SIG_IGN)
326 (void) signal(SIGTERM, SIG_IGN);
331 if (command == 'C' && inputdev[0] != '/' && strcmp(inputdev, "-")
333 && !strchr(inputdev, ':')
336 /* since we chdir into the directory we are comparing
337 * to, we must retain the full tape path */
338 char wd[MAXPATHLEN], fullpathinput[MAXPATHLEN];
339 if (!getcwd(wd, MAXPATHLEN))
340 err(1, "can't get current directory");
341 snprintf(fullpathinput, MAXPATHLEN, "%s/%s", wd, inputdev);
342 fullpathinput[MAXPATHLEN - 1] = '\0';
343 setinput(fullpathinput);
348 if (argc == 0 && !filelist) {
355 msg("reading QFA positions from %s\n", gTapeposfile);
356 if ((gTapeposfp = fopen(gTapeposfile, "r")) == NULL)
357 errx(1, "can't open file for reading -- %s",
359 /* start reading header info */
360 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
361 errx(1, "not requested format of -- %s", gTapeposfile);
362 gTps[strlen(gTps) - 1] = 0; /* delete end of line */
363 if (strcmp(gTps, QFA_MAGIC) != 0)
364 errx(1, "not requested format of -- %s", gTapeposfile);
365 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
366 errx(1, "not requested format of -- %s", gTapeposfile);
367 gTps[strlen(gTps) - 1] = 0;
368 if (strcmp(gTps, QFA_VERSION) != 0)
369 errx(1, "not requested format of -- %s", gTapeposfile);
371 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
372 errx(1, "not requested format of -- %s", gTapeposfile);
373 gTps[strlen(gTps) - 1] = 0;
374 qfadumpdate = atol(gTps);
375 /* read empty line */
376 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
377 errx(1, "not requested format of -- %s", gTapeposfile);
378 gTps[strlen(gTps) - 1] = 0;
379 /* read table header line */
380 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
381 errx(1, "not requested format of -- %s", gTapeposfile);
382 gTps[strlen(gTps) - 1] = 0;
383 /* end reading header info */
384 /* tape position table starts here */
385 gSeekstart = ftell(gTapeposfp); /* remember for later use */
391 * Compare contents of tape.
396 Vprintf(stdout, "Begin compare restore\n");
397 compare_ignore_not_found = 0;
400 printf("filesys = %s\n", filesys);
401 if (STAT(filesys, &stbuf) < 0)
402 err(1, "cannot stat directory %s", filesys);
403 if (chdir(filesys) < 0)
404 err(1, "cannot cd to %s", filesys);
405 compare_ignore_not_found = dumptime > 0;
406 initsymtable((char *)0);
408 treescan(".", ROOTINO, nodeupdates);
411 if (compare_errors) {
412 printf("Some files were modified!\n");
428 * Incremental restoration of a file system.
431 aflag = 1; /* in -r or -R mode, -a is default */
435 * This is an incremental dump tape.
437 Vprintf(stdout, "Begin incremental restore\n");
438 initsymtable(symtbl);
441 Vprintf(stdout, "Calculate node updates.\n");
442 treescan(".", ROOTINO, nodeupdates);
447 * This is a level zero dump tape.
449 Vprintf(stdout, "Begin level 0 restore\n");
450 initsymtable((char *)0);
452 Vprintf(stdout, "Calculate extraction list.\n");
453 treescan(".", ROOTINO, nodeupdates);
455 createleaves(symtbl);
460 Vprintf(stdout, "Verify the directory structure\n");
461 treescan(".", ROOTINO, verifyfile);
463 dumpsymtable(symtbl, (long)1);
466 * Resume an incremental file system restoration.
469 aflag = 1; /* in -r or -R mode, -a is default */
470 initsymtable(symtbl);
473 createleaves(symtbl);
477 dumpsymtable(symtbl, (long)1);
480 /* handle file names from either text file (-X) or the command line */
481 #define NEXTFILE(p) \
487 else if (filelist) { \
488 if ((p = fgets(fname, MAXPATHLEN, filelist))) { \
489 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */ \
490 *(p + strlen(p) - 1) = '\0'; \
491 if ( !*p ) /* skip empty lines */ \
497 * List contents of tape.
502 initsymtable((char *)0);
508 canon(p, name, sizeof(name));
509 ino = dirlookup(name);
512 treescan(name, ino, listfile);
516 * Batch extraction of tape contents.
520 tistart = time(NULL);
524 initsymtable((char *)0);
529 canon(p, name, sizeof(name));
530 ino = dirlookup(name);
535 treescan(name, ino, addfile);
539 setdirmodes(oflag ? FORCE : 0);
544 titaken = tiend - tistart;
545 msg("restore took %d:%02d:%02d\n", titaken / 3600,
546 (titaken % 3600) / 60, titaken % 60);
547 #endif /* DEBUG_QFA */
552 tistart = time(NULL);
555 msg("writing QFA positions to %s\n", gTapeposfile);
556 (void) umask(orig_umask);
557 if ((gTapeposfd = open(gTapeposfile, O_WRONLY|O_CREAT|O_TRUNC,
558 S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP
559 |S_IROTH|S_IWOTH)) < 0)
560 errx(1, "can't create tapeposfile\n");
561 (void) umask(FORCED_UMASK);
562 /* print QFA-file header */
563 sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION,(unsigned long)spcl.c_date);
564 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
565 errx(1, "can't write tapeposfile\n");
566 sprintf(gTps, "ino\ttapeno\ttapepos\n");
567 if (write(gTapeposfd, gTps, strlen(gTps)) != (ssize_t)strlen(gTps))
568 errx(1, "can't write tapeposfile\n");
571 initsymtable((char *)0);
576 canon(p, name, sizeof(name));
577 ino = dirlookup(name);
582 treescan(name, ino, addfile);
587 titaken = tiend - tistart;
588 msg("writing QFA positions took %d:%02d:%02d\n", titaken / 3600,
589 (titaken % 3600) / 60, titaken % 60);
590 #endif /* DEBUG_QFA */
596 return 0; /* gcc shut up */
602 char white[MAXPATHLEN];
603 const char *ext2ver, *ext2date;
605 memset(white, ' ', MAXPATHLEN);
606 white[MIN(strlen(__progname), MAXPATHLEN - 1)] = '\0';
609 ext2fs_get_library_version(&ext2ver, &ext2date);
610 (void)fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
611 __progname, _DUMP_VERSION, ext2ver, ext2date);
613 (void)fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
623 #define qfaflag "[-Q file] "
630 "\t%s -C [-cd" kerbflag "lMvVy] [-b blocksize] [-D filesystem] [-f file]\n"
631 "\t%s [-F script] [-L limit] [-s fileno]\n"
632 "\t%s -i [-acdh" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
633 "\t%s [-F script] " qfaflag "[-s fileno]\n"
635 "\t%s -P file [-acdh" kerbflag "lmMuvVy] [-A file] [-b blocksize]\n"
636 "\t%s [-f file] [-F script] [-s fileno] [-X filelist] [file ...]\n"
638 "\t%s -r [-cd" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
639 "\t%s [-s fileno] [-T directory]\n"
640 "\t%s -R [-cd" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script]\n"
641 "\t%s [-s fileno] [-T directory]\n"
642 "\t%s -t [-cdh" kerbflag "lMuvVy] [-A file] [-b blocksize] [-f file]\n"
643 "\t%s [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n"
644 "\t%s -x [-acdh" kerbflag "lmMouvVy] [-A file] [-b blocksize] [-f file]\n"
645 "\t%s [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]\n",
660 * Change set of key letters and ordered arguments into something
661 * getopt(3) will like.
664 obsolete(int *argcp, char **argvp[])
667 char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL;
673 /* Return if no arguments or first argument has leading dash. */
675 if (argc == 1 || *ap == '-')
678 /* Allocate space for new arguments. */
679 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
680 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
681 err(1, "malloc args");
684 argv += 2, argc -= 2;
686 for (flags = 0; *ap; ++ap) {
699 warnx("option requires an argument -- %c", *ap);
702 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
703 err(1, "malloc arg");
706 (void)strcpy(&nargv[0][2], *argv);
720 /* Terminate flags. */
726 /* Copy remaining arguments. */
727 while ((*nargv++ = *argv++));
729 /* Update argument count. */
730 *argcp = nargv - *argvp - 1;
735 * reserve stdin for opt (avoid conflicts)
738 use_stdin(const char *opt)
741 errx(1, "can't handle standard input for both %s and %s",