3 * Dumb program to extract files from a Bacula backup.
5 * Kern E. Sibbald, 2000
11 Copyright (C) 2000-2004 Kern Sibbald and John Walker
13 This program is free software; you can redistribute it and/or
14 modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation; either version 2 of
16 the License, or (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 General Public License for more details.
23 You should have received a copy of the GNU General Public
24 License along with this program; if not, write to the Free
25 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
32 #include "findlib/find.h"
34 #if defined(HAVE_CYGWIN) || defined(HAVE_WIN32)
40 static void do_extract(char *fname);
41 static int record_cb(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, DEV_RECORD *rec);
43 static DEVICE *dev = NULL;
47 static FF_PKT *ff = &my_ff;
48 static BSR *bsr = NULL;
49 static int extract = FALSE;
50 static int non_support_data = 0;
51 static long total = 0;
54 static uint32_t num_files = 0;
55 static uint32_t compress_buf_size = 70000;
56 static POOLMEM *compress_buf;
57 static int prog_name_msg = 0;
58 static int win32_data_msg = 0;
59 static char *VolumeName = NULL;
61 static char *wbuf; /* write buffer address */
62 static uint32_t wsize; /* write size */
63 static uint64_t fileAddr = 0; /* file write address */
65 #define CONFIG_FILE "bacula-sd.conf"
67 bool forge_on = false;
72 "\nVersion: " VERSION " (" BDATE ")\n\n"
73 "Usage: bextract <options> <bacula-archive-device-name> <directory-to-store-files>\n"
74 " -b <file> specify a bootstrap file\n"
75 " -c <file> specify a configuration file\n"
76 " -d <nn> set debug level to nn\n"
77 " -e <file> exclude list\n"
78 " -i <file> include list\n"
79 " -p proceed inspite of I/O errors\n"
80 " -V <volumes> specify Volume names (separated by |)\n"
81 " -? print this message\n\n");
86 int main (int argc, char *argv[])
93 working_directory = "/tmp";
94 my_name_is(argc, argv, "bextract");
95 init_msg(NULL, NULL); /* setup message handler */
97 memset(ff, 0, sizeof(FF_PKT));
98 init_include_exclude_files(ff);
101 while ((ch = getopt(argc, argv, "b:c:d:e:i:pV:?")) != -1) {
103 case 'b': /* bootstrap file */
104 bsr = parse_bsr(NULL, optarg);
105 // dump_bsr(bsr, true);
108 case 'c': /* specify config file */
109 if (configfile != NULL) {
112 configfile = bstrdup(optarg);
115 case 'd': /* debug level */
116 debug_level = atoi(optarg);
117 if (debug_level <= 0)
121 case 'e': /* exclude list */
122 if ((fd = fopen(optarg, "r")) == NULL) {
123 Pmsg2(0, "Could not open exclude file: %s, ERR=%s\n",
124 optarg, strerror(errno));
127 while (fgets(line, sizeof(line), fd) != NULL) {
128 strip_trailing_junk(line);
129 Dmsg1(900, "add_exclude %s\n", line);
130 add_fname_to_exclude_list(ff, line);
135 case 'i': /* include list */
136 if ((fd = fopen(optarg, "r")) == NULL) {
137 Pmsg2(0, "Could not open include file: %s, ERR=%s\n",
138 optarg, strerror(errno));
141 while (fgets(line, sizeof(line), fd) != NULL) {
142 strip_trailing_junk(line);
143 Dmsg1(900, "add_include %s\n", line);
144 add_fname_to_include_list(ff, 0, line);
154 case 'V': /* Volume name */
168 Pmsg0(0, "Wrong number of arguments: \n");
172 if (configfile == NULL) {
173 configfile = bstrdup(CONFIG_FILE);
176 parse_config(configfile);
178 if (!got_inc) { /* If no include file, */
179 add_fname_to_include_list(ff, 0, "/"); /* include everything */
189 Pmsg1(000, "%d Program Name and/or Program Data Stream records ignored.\n",
192 if (win32_data_msg) {
193 Pmsg1(000, "%d Win32 data or Win32 gzip data stream records. Ignored.\n",
199 static void do_extract(char *devname)
202 jcr = setup_jcr("bextract", devname, bsr, VolumeName);
203 dev = setup_to_access_device(jcr, 1); /* acquire for read */
208 /* Make sure where directory exists and that it is a directory */
209 if (stat(where, &statp) < 0) {
210 Emsg2(M_ERROR_TERM, 0, "Cannot stat %s. It must exist. ERR=%s\n",
211 where, strerror(errno));
213 if (!S_ISDIR(statp.st_mode)) {
214 Emsg1(M_ERROR_TERM, 0, "%s must be a directory.\n", where);
218 jcr->where = bstrdup(where);
221 compress_buf = get_memory(compress_buf_size);
223 read_records(jcr, dev, record_cb, mount_next_read_volume);
224 /* If output file is still open, it was the last one in the
225 * archive since we just hit an end of file, so close the file.
227 if (is_bopen(&bfd)) {
228 set_attributes(jcr, attr, &bfd);
235 printf("%u files restored.\n", num_files);
240 * Called here for each record from read_records()
242 static int record_cb(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, DEV_RECORD *rec)
246 if (rec->FileIndex < 0) {
247 return 1; /* we don't want labels */
250 /* File Attributes stream */
252 switch (rec->Stream) {
253 case STREAM_UNIX_ATTRIBUTES:
254 case STREAM_UNIX_ATTRIBUTES_EX:
256 /* If extracting, it was from previous stream, so
257 * close the output file.
260 if (!is_bopen(&bfd)) {
261 Emsg0(M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
263 set_attributes(jcr, attr, &bfd);
267 if (!unpack_attributes_record(jcr, rec->Stream, rec->data, attr)) {
268 Emsg0(M_ERROR_TERM, 0, _("Cannot continue.\n"));
271 if (attr->file_index != rec->FileIndex) {
272 Emsg2(M_ERROR_TERM, 0, _("Record header file index %ld not equal record index %ld\n"),
273 rec->FileIndex, attr->file_index);
276 if (file_is_included(ff, attr->fname) && !file_is_excluded(ff, attr->fname)) {
278 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
279 if (!is_stream_supported(attr->data_stream)) {
280 if (!non_support_data++) {
281 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
282 stream_to_ascii(attr->data_stream));
289 build_attr_output_fnames(jcr, attr);
292 stat = create_file(jcr, attr, &bfd, REPLACE_ALWAYS);
299 print_ls_output(jcr, attr);
304 set_attributes(jcr, attr, &bfd);
305 print_ls_output(jcr, attr);
313 /* Data stream and extracting */
314 case STREAM_FILE_DATA:
315 case STREAM_SPARSE_DATA:
316 case STREAM_WIN32_DATA:
319 if (rec->Stream == STREAM_SPARSE_DATA) {
322 wbuf = rec->data + SPARSE_FADDR_SIZE;
323 wsize = rec->data_len - SPARSE_FADDR_SIZE;
324 ser_begin(rec->data, SPARSE_FADDR_SIZE);
326 if (fileAddr != faddr) {
328 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
329 Emsg2(M_ERROR_TERM, 0, _("Seek error on %s: %s\n"),
330 attr->ofname, strerror(errno));
335 wsize = rec->data_len;
338 Dmsg2(8, "Write %u bytes, total=%u\n", wsize, total);
339 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
340 Emsg2(M_ERROR_TERM, 0, _("Write error on %s: %s\n"),
341 attr->ofname, strerror(errno));
347 /* GZIP data stream */
348 case STREAM_GZIP_DATA:
349 case STREAM_SPARSE_GZIP_DATA:
350 case STREAM_WIN32_GZIP_DATA:
356 if (rec->Stream == STREAM_SPARSE_GZIP_DATA) {
360 wbuf = rec->data + SPARSE_FADDR_SIZE;
361 wsize = rec->data_len - SPARSE_FADDR_SIZE;
362 ser_begin(rec->data, SPARSE_FADDR_SIZE);
364 if (fileAddr != faddr) {
366 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
367 Emsg3(M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
368 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
375 wsize = rec->data_len;
377 compress_len = compress_buf_size;
378 if ((stat=uncompress((Bytef *)compress_buf, &compress_len,
379 (const Bytef *)wbuf, (uLong)wsize) != Z_OK)) {
380 Emsg1(M_ERROR, 0, _("Uncompression error. ERR=%d\n"), stat);
385 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
386 if ((uLongf)bwrite(&bfd, compress_buf, (size_t)compress_len) != compress_len) {
387 Pmsg0(0, "===Write error===\n");
388 Emsg2(M_ERROR, 0, _("Write error on %s: %s\n"),
389 attr->ofname, strerror(errno));
393 total += compress_len;
394 fileAddr += compress_len;
395 Dmsg2(100, "Compress len=%d uncompressed=%d\n", rec->data_len,
400 Emsg0(M_ERROR, 0, "GZIP data stream found, but GZIP not configured!\n");
407 case STREAM_MD5_SIGNATURE:
408 case STREAM_SHA1_SIGNATURE:
411 case STREAM_PROGRAM_NAMES:
412 case STREAM_PROGRAM_DATA:
413 if (!prog_name_msg) {
414 Pmsg0(000, "Got Program Name or Data Stream. Ignored.\n");
420 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
422 if (!is_bopen(&bfd)) {
423 Emsg0(M_ERROR, 0, "Logic error output file should be open but is not.\n");
425 set_attributes(jcr, attr, &bfd);
428 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"),
439 /* Dummies to replace askdir.c */
440 int dir_get_volume_info(JCR *jcr, enum get_vol_info_rw writing) { return 1;}
441 int dir_find_next_appendable_volume(JCR *jcr) { return 1;}
442 int dir_update_volume_info(JCR *jcr, DEVICE *dev, int relabel) { return 1; }
443 int dir_create_jobmedia_record(JCR *jcr) { return 1; }
444 int dir_ask_sysop_to_create_appendable_volume(JCR *jcr, DEVICE *dev) { return 1; }
445 int dir_update_file_attributes(JCR *jcr, DEV_RECORD *rec) { return 1;}
446 int dir_send_job_status(JCR *jcr) {return 1;}
449 int dir_ask_sysop_to_mount_volume(JCR *jcr, DEVICE *dev)
451 fprintf(stderr, "Mount Volume %s on device %s and press return when ready: ",
452 jcr->VolumeName, dev_name(dev));