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 1.34 2002/01/16 09:32:14 stelian Exp $";
48 #include <compatlfs.h>
49 #include <sys/param.h>
56 #ifdef HAVE_EXT2FS_EXT2_FS_H
57 #include <ext2fs/ext2_fs.h>
59 #include <linux/ext2_fs.h>
61 #include <bsdcompat.h>
65 #include <ufs/ufs/dinode.h>
66 #endif /* __linux__ */
67 #include <protocols/dumprestore.h>
69 #include <compaterr.h>
75 #include <ext2fs/ext2fs.h>
79 #include "pathnames.h"
83 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
84 int hflag = 1, mflag = 1, Mflag = 0, Nflag = 0, Vflag = 0, zflag = 0;
85 int uflag = 0, lflag = 0, Lflag = 0;
98 int compare_ignore_not_found;
100 char filesys[NAMELEN];
101 static const char *stdin_opt = NULL;
102 char *bot_script = NULL;
116 static void obsolete __P((int *, char **[]));
117 static void usage __P((void));
118 static void use_stdin __P((const char *));
121 main(int argc, char *argv[])
125 char *inputdev = _PATH_DEFTAPE;
126 char *symtbl = "./restoresymtable";
127 char *p, name[MAXPATHLEN];
128 FILE *filelist = NULL;
129 char fname[MAXPATHLEN];
134 time_t tistart, tiend, titaken;
137 /* Temp files should *not* be readable. We set permissions later. */
141 __progname = argv[0];
147 if ((inputdev = getenv("TAPE")) == NULL)
148 inputdev = _PATH_DEFTAPE;
149 if ((tmpdir = getenv("TMPDIR")) == NULL)
151 if ((tmpdir = strdup(tmpdir)) == NULL)
152 err(1, "malloc tmpdir");
153 for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
155 obsolete(&argc, &argv);
156 while ((ch = getopt(argc, argv,
165 "Rrs:tT:uvVxX:y")) != -1)
168 /* Change default tape blocksize. */
170 ntrec = strtol(optarg, &p, 10);
172 errx(1, "illegal blocksize -- %s", optarg);
174 errx(1, "block size must be greater than 0");
180 strncpy(filesys, optarg, NAMELEN);
181 filesys[NAMELEN - 1] = '\0';
190 if( !strcmp(optarg,"-") )
213 "%c and %c options are mutually exclusive",
221 Lflag = strtol(optarg, &p, 10);
223 errx(1, "illegal limit -- %s", optarg);
225 errx(1, "limit must be greater than 0");
238 gTapeposfile = optarg;
243 /* Dumpnum (skip to) for multifile dump tapes. */
244 dumpnum = strtol(optarg, &p, 10);
246 errx(1, "illegal dump number -- %s", optarg);
248 errx(1, "dump number must be greater than 0");
260 if( !strcmp(optarg,"-") ) {
265 if ( !(filelist = fopen(optarg,"r")) )
266 errx(1, "can't open file for reading -- %s", optarg);
278 errx(1, "none of C, i, R, r, t or x options specified");
281 if (!mflag && tapeposflag)
282 errx(1, "m and Q options are mutually exclusive");
285 if (signal(SIGINT, onintr) == SIG_IGN)
286 (void) signal(SIGINT, SIG_IGN);
287 if (signal(SIGTERM, onintr) == SIG_IGN)
288 (void) signal(SIGTERM, SIG_IGN);
293 if (command == 'C' && inputdev[0] != '/' && strcmp(inputdev, "-")
295 && !strchr(inputdev, ':')
298 /* since we chdir into the directory we are comparing
299 * to, we must retain the full tape path */
300 char wd[MAXPATHLEN], fullpathinput[MAXPATHLEN];
301 if (!getcwd(wd, MAXPATHLEN))
302 err(1, "can't get current directory");
303 snprintf(fullpathinput, MAXPATHLEN, "%s/%s", wd, inputdev);
304 fullpathinput[MAXPATHLEN - 1] = '\0';
305 setinput(fullpathinput);
310 if (argc == 0 && !filelist) {
317 msg("reading QFA positions from %s\n", gTapeposfile);
318 if ((gTapeposfp = fopen(gTapeposfile, "r")) == NULL)
319 errx(1, "can't open file for reading -- %s",
321 /* start reading header info */
322 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
323 errx(1, "not requested format of -- %s", gTapeposfile);
324 gTps[strlen(gTps) - 1] = 0; /* delete end of line */
325 if (strcmp(gTps, QFA_MAGIC) != 0)
326 errx(1, "not requested format of -- %s", gTapeposfile);
327 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
328 errx(1, "not requested format of -- %s", gTapeposfile);
329 gTps[strlen(gTps) - 1] = 0;
330 if (strcmp(gTps, QFA_VERSION) != 0)
331 errx(1, "not requested format of -- %s", gTapeposfile);
333 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
334 errx(1, "not requested format of -- %s", gTapeposfile);
335 gTps[strlen(gTps) - 1] = 0;
336 /* TODO: check dumpdate from QFA file with current dump file's
338 /* if not equal either output warning and continue without QFA
340 /* read empty line */
341 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
342 errx(1, "not requested format of -- %s", gTapeposfile);
343 gTps[strlen(gTps) - 1] = 0;
344 /* read table header line */
345 if (fgets(gTps, sizeof(gTps), gTapeposfp) == NULL)
346 errx(1, "not requested format of -- %s", gTapeposfile);
347 gTps[strlen(gTps) - 1] = 0;
348 /* end reading header info */
349 /* tape position table starts here */
350 gSeekstart = ftell(gTapeposfp); /* remember for later use */
356 * Compare contents of tape.
361 Vprintf(stdout, "Begin compare restore\n");
362 compare_ignore_not_found = 0;
365 printf("filesys = %s\n", filesys);
366 if (STAT(filesys, &stbuf) < 0)
367 err(1, "cannot stat directory %s", filesys);
368 if (chdir(filesys) < 0)
369 err(1, "cannot cd to %s", filesys);
370 compare_ignore_not_found = dumptime > 0;
371 initsymtable((char *)0);
373 treescan(".", ROOTINO, nodeupdates);
376 if (compare_errors) {
377 printf("Some files were modified!\n");
393 * Incremental restoration of a file system.
399 * This is an incremental dump tape.
401 Vprintf(stdout, "Begin incremental restore\n");
402 initsymtable(symtbl);
405 Vprintf(stdout, "Calculate node updates.\n");
406 treescan(".", ROOTINO, nodeupdates);
411 * This is a level zero dump tape.
413 Vprintf(stdout, "Begin level 0 restore\n");
414 initsymtable((char *)0);
416 Vprintf(stdout, "Calculate extraction list.\n");
417 treescan(".", ROOTINO, nodeupdates);
419 createleaves(symtbl);
424 Vprintf(stdout, "Verify the directory structure\n");
425 treescan(".", ROOTINO, verifyfile);
427 dumpsymtable(symtbl, (long)1);
430 * Resume an incremental file system restoration.
433 initsymtable(symtbl);
436 createleaves(symtbl);
440 dumpsymtable(symtbl, (long)1);
443 /* handle file names from either text file (-X) or the command line */
444 #define NEXTFILE(p) \
450 else if (filelist) { \
451 if ((p = fgets(fname, MAXPATHLEN, filelist))) { \
452 if ( *p && *(p + strlen(p) - 1) == '\n' ) /* possible null string */ \
453 *(p + strlen(p) - 1) = '\0'; \
454 if ( !*p ) /* skip empty lines */ \
460 * List contents of tape.
465 initsymtable((char *)0);
470 canon(p, name, sizeof(name));
471 ino = dirlookup(name);
474 treescan(name, ino, listfile);
478 * Batch extraction of tape contents.
482 tistart = time(NULL);
486 initsymtable((char *)0);
491 canon(p, name, sizeof(name));
492 ino = dirlookup(name);
497 treescan(name, ino, addfile);
506 titaken = tiend - tistart;
507 msg("restore took %d:%02d:%02d\n", titaken / 3600,
508 (titaken % 3600) / 60, titaken % 60);
509 #endif /* USE_QFADEBUG */
514 return 0; /* gcc shut up */
521 const char *ext2ver, *ext2date;
523 ext2fs_get_library_version(&ext2ver, &ext2date);
524 (void)fprintf(stderr, "%s %s (using libext2fs %s of %s)\n",
525 __progname, _DUMP_VERSION, ext2ver, ext2date);
527 (void)fprintf(stderr, "%s %s\n", __progname, _DUMP_VERSION);
537 #define qfaflag "[-Q file] "
542 (void)fprintf(stderr,
543 "usage:\t%s%s\n\t%s%s\n\t%s%s\n\t%s%s\n\t%s%s\n\t%s%s\n",
544 __progname, " -C [-c" kerbflag "lMvVy] [-b blocksize] [-D filesystem] [-f file] [-F script] [-L limit] [-s fileno]",
545 __progname, " -i [-ch" kerbflag "lmMuvVy] [-b blocksize] [-f file] [-F script] " qfaflag "[-s fileno]",
546 __progname, " -r [-c" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script] [-s fileno] [-T directory]",
547 __progname, " -R [-c" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script] [-s fileno] [-T directory]",
548 __progname, " -t [-ch" kerbflag "lMuvVy] [-b blocksize] [-f file] [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]",
549 __progname, " -x [-ch" kerbflag "lmMuvVy] [-b blocksize] [-f file] [-F script] " qfaflag "[-s fileno] [-X filelist] [file ...]");
555 * Change set of key letters and ordered arguments into something
556 * getopt(3) will like.
559 obsolete(int *argcp, char **argvp[])
562 char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL;
568 /* Return if no arguments or first argument has leading dash. */
570 if (argc == 1 || *ap == '-')
573 /* Allocate space for new arguments. */
574 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
575 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
576 err(1, "malloc args");
579 argv += 2, argc -= 2;
581 for (flags = 0; *ap; ++ap) {
593 warnx("option requires an argument -- %c", *ap);
596 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
597 err(1, "malloc arg");
600 (void)strcpy(&nargv[0][2], *argv);
614 /* Terminate flags. */
620 /* Copy remaining arguments. */
621 while ((*nargv++ = *argv++));
623 /* Update argument count. */
624 *argcp = nargv - *argvp - 1;
629 * reserve stdin for opt (avoid conflicts)
632 use_stdin(const char *opt)
635 errx(1, "can't handle standard input for both %s and %s",