3 * Dumb program to extract files from a Bacula backup.
11 Bacula® - The Network Backup Solution
13 Copyright (C) 2000-2006 Free Software Foundation Europe e.V.
15 The main author of Bacula is Kern Sibbald, with contributions from
16 many others, a complete list can be found in the file AUTHORS.
17 This program is Free Software; you can redistribute it and/or
18 modify it under the terms of version two of the GNU General Public
19 License as published by the Free Software Foundation and included
22 This program is distributed in the hope that it will be useful, but
23 WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
32 Bacula® is a registered trademark of John Walker.
33 The licensor of Bacula is the Free Software Foundation Europe
34 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
35 Switzerland, email:ftf@fsfeurope.org.
40 #include "findlib/find.h"
42 static void do_extract(char *fname);
43 static bool record_cb(DCR *dcr, DEV_RECORD *rec);
45 static DEVICE *dev = NULL;
50 static BSR *bsr = NULL;
51 static bool extract = false;
52 static int non_support_data = 0;
53 static long total = 0;
56 static uint32_t num_files = 0;
57 static uint32_t compress_buf_size = 70000;
58 static POOLMEM *compress_buf;
59 static int prog_name_msg = 0;
60 static int win32_data_msg = 0;
61 static char *VolumeName = NULL;
63 static char *wbuf; /* write buffer address */
64 static uint32_t wsize; /* write size */
65 static uint64_t fileAddr = 0; /* file write address */
67 #define CONFIG_FILE "bacula-sd.conf"
68 char *configfile = NULL;
69 STORES *me = NULL; /* our Global resource */
70 bool forge_on = false;
71 pthread_mutex_t device_release_mutex = PTHREAD_MUTEX_INITIALIZER;
72 pthread_cond_t wait_device_release = PTHREAD_COND_INITIALIZER;
78 "\nVersion: %s (%s)\n\n"
79 "Usage: bextract <options> <bacula-archive-device-name> <directory-to-store-files>\n"
80 " -b <file> specify a bootstrap file\n"
81 " -c <file> specify a configuration file\n"
82 " -d <nn> set debug level to <nn>\n"
83 " -dt print timestamp in debug output\n"
84 " -e <file> exclude list\n"
85 " -i <file> include list\n"
86 " -p proceed inspite of I/O errors\n"
88 " -V <volumes> specify Volume names (separated by |)\n"
89 " -? print this message\n\n"), 2000, VERSION, BDATE);
94 int main (int argc, char *argv[])
101 setlocale(LC_ALL, "");
102 bindtextdomain("bacula", LOCALEDIR);
103 textdomain("bacula");
106 working_directory = "/tmp";
107 my_name_is(argc, argv, "bextract");
108 init_msg(NULL, NULL); /* setup message handler */
112 ff = init_find_files();
115 while ((ch = getopt(argc, argv, "b:c:d:e:i:pvV:?")) != -1) {
117 case 'b': /* bootstrap file */
118 bsr = parse_bsr(NULL, optarg);
119 // dump_bsr(bsr, true);
122 case 'c': /* specify config file */
123 if (configfile != NULL) {
126 configfile = bstrdup(optarg);
129 case 'd': /* debug level */
130 if (*optarg == 't') {
131 dbg_timestamp = true;
133 debug_level = atoi(optarg);
134 if (debug_level <= 0) {
140 case 'e': /* exclude list */
141 if ((fd = fopen(optarg, "rb")) == NULL) {
143 Pmsg2(0, _("Could not open exclude file: %s, ERR=%s\n"),
144 optarg, be.bstrerror());
147 while (fgets(line, sizeof(line), fd) != NULL) {
148 strip_trailing_junk(line);
149 Dmsg1(900, "add_exclude %s\n", line);
150 add_fname_to_exclude_list(ff, line);
155 case 'i': /* include list */
156 if ((fd = fopen(optarg, "rb")) == NULL) {
158 Pmsg2(0, _("Could not open include file: %s, ERR=%s\n"),
159 optarg, be.bstrerror());
162 while (fgets(line, sizeof(line), fd) != NULL) {
163 strip_trailing_junk(line);
164 Dmsg1(900, "add_include %s\n", line);
165 add_fname_to_include_list(ff, 0, line);
179 case 'V': /* Volume name */
193 Pmsg0(0, _("Wrong number of arguments: \n"));
197 if (configfile == NULL) {
198 configfile = bstrdup(CONFIG_FILE);
201 parse_config(configfile);
203 if (!got_inc) { /* If no include file, */
204 add_fname_to_include_list(ff, 0, "/"); /* include everything */
214 Pmsg1(000, _("%d Program Name and/or Program Data Stream records ignored.\n"),
217 if (win32_data_msg) {
218 Pmsg1(000, _("%d Win32 data or Win32 gzip data stream records. Ignored.\n"),
221 term_include_exclude_files(ff);
226 static void do_extract(char *devname)
230 enable_backup_privileges(NULL, 1);
232 jcr = setup_jcr("bextract", devname, bsr, VolumeName, 1); /* acquire for read */
236 dev = jcr->read_dcr->dev;
242 /* Make sure where directory exists and that it is a directory */
243 if (stat(where, &statp) < 0) {
245 Emsg2(M_ERROR_TERM, 0, _("Cannot stat %s. It must exist. ERR=%s\n"),
246 where, be.bstrerror());
248 if (!S_ISDIR(statp.st_mode)) {
249 Emsg1(M_ERROR_TERM, 0, _("%s must be a directory.\n"), where);
253 jcr->where = bstrdup(where);
254 attr = new_attr(jcr);
256 compress_buf = get_memory(compress_buf_size);
258 read_records(dcr, record_cb, mount_next_read_volume);
259 /* If output file is still open, it was the last one in the
260 * archive since we just hit an end of file, so close the file.
262 if (is_bopen(&bfd)) {
263 set_attributes(jcr, attr, &bfd);
270 printf(_("%u files restored.\n"), num_files);
275 * Called here for each record from read_records()
277 static bool record_cb(DCR *dcr, DEV_RECORD *rec)
282 if (rec->FileIndex < 0) {
283 return true; /* we don't want labels */
286 /* File Attributes stream */
288 switch (rec->Stream) {
289 case STREAM_UNIX_ATTRIBUTES:
290 case STREAM_UNIX_ATTRIBUTES_EX:
292 /* If extracting, it was from previous stream, so
293 * close the output file.
296 if (!is_bopen(&bfd)) {
297 Emsg0(M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
299 set_attributes(jcr, attr, &bfd);
303 if (!unpack_attributes_record(jcr, rec->Stream, rec->data, attr)) {
304 Emsg0(M_ERROR_TERM, 0, _("Cannot continue.\n"));
307 if (attr->file_index != rec->FileIndex) {
308 Emsg2(M_ERROR_TERM, 0, _("Record header file index %ld not equal record index %ld\n"),
309 rec->FileIndex, attr->file_index);
312 if (file_is_included(ff, attr->fname) && !file_is_excluded(ff, attr->fname)) {
314 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
315 if (!is_restore_stream_supported(attr->data_stream)) {
316 if (!non_support_data++) {
317 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
318 stream_to_ascii(attr->data_stream));
325 build_attr_output_fnames(jcr, attr);
328 stat = create_file(jcr, attr, &bfd, REPLACE_ALWAYS);
335 print_ls_output(jcr, attr);
340 set_attributes(jcr, attr, &bfd);
341 print_ls_output(jcr, attr);
349 /* Data stream and extracting */
350 case STREAM_FILE_DATA:
351 case STREAM_SPARSE_DATA:
352 case STREAM_WIN32_DATA:
355 if (rec->Stream == STREAM_SPARSE_DATA) {
358 wbuf = rec->data + SPARSE_FADDR_SIZE;
359 wsize = rec->data_len - SPARSE_FADDR_SIZE;
360 ser_begin(rec->data, SPARSE_FADDR_SIZE);
362 if (fileAddr != faddr) {
364 if (blseek(&bfd, (boffset_t)fileAddr, SEEK_SET) < 0) {
366 Emsg2(M_ERROR_TERM, 0, _("Seek error on %s: %s\n"),
367 attr->ofname, be.bstrerror());
372 wsize = rec->data_len;
375 Dmsg2(8, "Write %u bytes, total=%u\n", wsize, total);
376 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
378 Emsg2(M_ERROR_TERM, 0, _("Write error on %s: %s\n"),
379 attr->ofname, be.bstrerror());
385 /* GZIP data stream */
386 case STREAM_GZIP_DATA:
387 case STREAM_SPARSE_GZIP_DATA:
388 case STREAM_WIN32_GZIP_DATA:
394 if (rec->Stream == STREAM_SPARSE_GZIP_DATA) {
398 wbuf = rec->data + SPARSE_FADDR_SIZE;
399 wsize = rec->data_len - SPARSE_FADDR_SIZE;
400 ser_begin(rec->data, SPARSE_FADDR_SIZE);
402 if (fileAddr != faddr) {
404 if (blseek(&bfd, (boffset_t)fileAddr, SEEK_SET) < 0) {
406 Emsg3(M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
407 edit_uint64(fileAddr, ec1), attr->ofname, be.bstrerror());
414 wsize = rec->data_len;
416 compress_len = compress_buf_size;
417 if ((stat=uncompress((Bytef *)compress_buf, &compress_len,
418 (const Bytef *)wbuf, (uLong)wsize) != Z_OK)) {
419 Emsg1(M_ERROR, 0, _("Uncompression error. ERR=%d\n"), stat);
424 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
425 if ((uLongf)bwrite(&bfd, compress_buf, (size_t)compress_len) != compress_len) {
427 Pmsg0(0, _("===Write error===\n"));
428 Emsg2(M_ERROR, 0, _("Write error on %s: %s\n"),
429 attr->ofname, be.bstrerror());
433 total += compress_len;
434 fileAddr += compress_len;
435 Dmsg2(100, "Compress len=%d uncompressed=%d\n", rec->data_len,
440 Emsg0(M_ERROR, 0, _("GZIP data stream found, but GZIP not configured!\n"));
447 case STREAM_MD5_DIGEST:
448 case STREAM_SHA1_DIGEST:
449 case STREAM_SHA256_DIGEST:
450 case STREAM_SHA512_DIGEST:
453 case STREAM_SIGNED_DIGEST:
454 case STREAM_ENCRYPTED_SESSION_DATA:
455 // TODO landonf: Investigate crypto support in the storage daemon
458 case STREAM_PROGRAM_NAMES:
459 case STREAM_PROGRAM_DATA:
460 if (!prog_name_msg) {
461 Pmsg0(000, _("Got Program Name or Data Stream. Ignored.\n"));
467 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
469 if (!is_bopen(&bfd)) {
470 Emsg0(M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
472 set_attributes(jcr, attr, &bfd);
475 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"),
483 /* Dummies to replace askdir.c */
484 bool dir_find_next_appendable_volume(DCR *dcr) { return 1;}
485 bool dir_update_volume_info(DCR *dcr, bool relabel) { return 1; }
486 bool dir_create_jobmedia_record(DCR *dcr) { return 1; }
487 bool dir_ask_sysop_to_create_appendable_volume(DCR *dcr) { return 1; }
488 bool dir_update_file_attributes(DCR *dcr, DEV_RECORD *rec) { return 1;}
489 bool dir_send_job_status(JCR *jcr) {return 1;}
492 bool dir_ask_sysop_to_mount_volume(DCR *dcr)
494 DEVICE *dev = dcr->dev;
495 fprintf(stderr, _("Mount Volume \"%s\" on device %s and press return when ready: "),
496 dcr->VolumeName, dev->print_name());
502 bool dir_get_volume_info(DCR *dcr, enum get_vol_info_rw writing)
504 Dmsg0(100, "Fake dir_get_volume_info\n");
505 bstrncpy(dcr->VolCatInfo.VolCatName, dcr->VolumeName, sizeof(dcr->VolCatInfo.VolCatName));
506 dcr->VolCatInfo.VolCatParts = find_num_dvd_parts(dcr);
507 Dmsg2(500, "Vol=%s num_parts=%d\n", dcr->VolCatInfo.VolCatName, dcr->VolCatInfo.VolCatParts);