3 * Dumb program to extract files from a Bacula backup.
11 Copyright (C) 2000, 2001, 2002 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"
41 static void do_extract(char *fname);
42 static void record_cb(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, DEV_RECORD *rec);
44 static DEVICE *dev = NULL;
48 static FF_PKT *ff = &my_ff;
49 static BSR *bsr = NULL;
50 static int extract = FALSE;
51 static int non_support_data = 0;
52 static long total = 0;
55 static uint32_t num_files = 0;
56 static uint32_t compress_buf_size = 70000;
57 static POOLMEM *compress_buf;
58 static int prog_name_msg = 0;
59 static int win32_data_msg = 0;
60 static char *VolumeName = NULL;
62 static char *wbuf; /* write buffer address */
63 static uint32_t wsize; /* write size */
64 static uint64_t fileAddr = 0; /* file write address */
66 #define CONFIG_FILE "bacula-sd.conf"
73 "\nVersion: " VERSION " (" BDATE ")\n\n"
74 "Usage: bextract [-d debug_level] <bacula-archive> <directory-to-store-files>\n"
75 " -b <file> specify a bootstrap file\n"
76 " -c <file> specify a configuration file\n"
77 " -dnn set debug level to nn\n"
78 " -e <file> exclude list\n"
79 " -i <file> include list\n"
80 " -V 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:?")) != -1) {
103 case 'b': /* bootstrap file */
104 bsr = parse_bsr(NULL, optarg);
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);
150 case 'V': /* Volume name */
164 Pmsg0(0, "Wrong number of arguments: \n");
168 if (configfile == NULL) {
169 configfile = bstrdup(CONFIG_FILE);
172 parse_config(configfile);
174 if (!got_inc) { /* If no include file, */
175 add_fname_to_include_list(ff, 0, "/"); /* include everything */
185 Pmsg1(000, "%d Program Name and/or Program Data Stream records ignored.\n",
188 if (win32_data_msg) {
189 Pmsg1(000, "%d Win32 data or Win32 gzip data stream records. Ignored.\n",
195 static void do_extract(char *devname)
198 jcr = setup_jcr("bextract", devname, bsr, VolumeName);
199 dev = setup_to_access_device(jcr, 1); /* acquire for read */
204 /* Make sure where directory exists and that it is a directory */
205 if (stat(where, &statp) < 0) {
206 Emsg2(M_ERROR_TERM, 0, "Cannot stat %s. It must exist. ERR=%s\n",
207 where, strerror(errno));
209 if (!S_ISDIR(statp.st_mode)) {
210 Emsg1(M_ERROR_TERM, 0, "%s must be a directory.\n", where);
214 jcr->where = bstrdup(where);
217 compress_buf = get_memory(compress_buf_size);
219 read_records(jcr, dev, record_cb, mount_next_read_volume);
220 /* If output file is still open, it was the last one in the
221 * archive since we just hit an end of file, so close the file.
223 if (is_bopen(&bfd)) {
224 set_attributes(jcr, attr, &bfd);
226 release_device(jcr, dev);
231 printf("%u files restored.\n", num_files);
236 * Called here for each record from read_records()
238 static void record_cb(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, DEV_RECORD *rec)
242 if (rec->FileIndex < 0) {
243 return; /* we don't want labels */
246 /* File Attributes stream */
248 switch (rec->Stream) {
249 case STREAM_UNIX_ATTRIBUTES:
250 case STREAM_UNIX_ATTRIBUTES_EX:
252 /* If extracting, it was from previous stream, so
253 * close the output file.
256 if (!is_bopen(&bfd)) {
257 Emsg0(M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
260 set_attributes(jcr, attr, &bfd);
263 if (!unpack_attributes_record(jcr, rec->Stream, rec->data, attr)) {
264 Emsg0(M_ERROR_TERM, 0, _("Cannot continue.\n"));
267 if (attr->file_index != rec->FileIndex) {
268 Emsg2(M_ERROR_TERM, 0, _("Record header file index %ld not equal record index %ld\n"),
269 rec->FileIndex, attr->file_index);
272 if (file_is_included(ff, attr->fname) && !file_is_excluded(ff, attr->fname)) {
274 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
275 if (!is_stream_supported(attr->data_stream)) {
276 if (!non_support_data++) {
277 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
278 stream_to_ascii(attr->data_stream));
284 build_attr_output_fnames(jcr, attr);
287 stat = create_file(jcr, attr, &bfd, REPLACE_ALWAYS);
294 print_ls_output(jcr, attr);
299 set_attributes(jcr, attr, &bfd);
300 print_ls_output(jcr, attr);
307 /* Data stream and extracting */
308 case STREAM_FILE_DATA:
309 case STREAM_SPARSE_DATA:
310 case STREAM_WIN32_DATA:
313 if (rec->Stream == STREAM_SPARSE_DATA) {
316 wbuf = rec->data + SPARSE_FADDR_SIZE;
317 wsize = rec->data_len - SPARSE_FADDR_SIZE;
318 ser_begin(rec->data, SPARSE_FADDR_SIZE);
320 if (fileAddr != faddr) {
322 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
323 Emsg2(M_ERROR_TERM, 0, _("Seek error on %s: %s\n"),
324 attr->ofname, strerror(errno));
329 wsize = rec->data_len;
332 Dmsg2(8, "Write %u bytes, total=%u\n", wsize, total);
333 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
334 Emsg2(M_ERROR_TERM, 0, _("Write error on %s: %s\n"),
335 attr->ofname, strerror(errno));
341 /* GZIP data stream */
342 case STREAM_GZIP_DATA:
343 case STREAM_SPARSE_GZIP_DATA:
344 case STREAM_WIN32_GZIP_DATA:
350 if (rec->Stream == STREAM_SPARSE_GZIP_DATA) {
353 wbuf = rec->data + SPARSE_FADDR_SIZE;
354 wsize = rec->data_len - SPARSE_FADDR_SIZE;
355 ser_begin(rec->data, SPARSE_FADDR_SIZE);
357 if (fileAddr != faddr) {
359 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
360 Emsg2(M_ERROR, 0, _("Seek error on %s: %s\n"),
361 attr->ofname, strerror(errno));
366 wsize = rec->data_len;
368 compress_len = compress_buf_size;
369 if ((stat=uncompress((Bytef *)compress_buf, &compress_len,
370 (const Bytef *)wbuf, (uLong)wsize) != Z_OK)) {
371 Emsg1(M_ERROR_TERM, 0, _("Uncompression error. ERR=%d\n"), stat);
374 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
375 if ((uLongf)bwrite(&bfd, compress_buf, (size_t)compress_len) != compress_len) {
376 Pmsg0(0, "===Write error===\n");
377 Emsg2(M_ERROR_TERM, 0, _("Write error on %s: %s\n"),
378 attr->ofname, strerror(errno));
380 total += compress_len;
381 fileAddr += compress_len;
382 Dmsg2(100, "Compress len=%d uncompressed=%d\n", rec->data_len,
387 Emsg0(M_ERROR, 0, "GZIP data stream found, but GZIP not configured!\n");
393 case STREAM_MD5_SIGNATURE:
394 case STREAM_SHA1_SIGNATURE:
397 case STREAM_PROGRAM_NAMES:
398 case STREAM_PROGRAM_DATA:
399 if (!prog_name_msg) {
400 Pmsg0(000, "Got Program Name or Data Stream. Ignored.\n");
406 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
408 if (!is_bopen(&bfd)) {
409 Emsg0(M_ERROR, 0, "Logic error output file should be open but is not.\n");
412 set_attributes(jcr, attr, &bfd);
414 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"),
424 /* Dummies to replace askdir.c */
425 int dir_get_volume_info(JCR *jcr, enum get_vol_info_rw writing) { return 1;}
426 int dir_find_next_appendable_volume(JCR *jcr) { return 1;}
427 int dir_update_volume_info(JCR *jcr, VOLUME_CAT_INFO *vol, int relabel) { return 1; }
428 int dir_create_jobmedia_record(JCR *jcr) { return 1; }
429 int dir_ask_sysop_to_mount_next_volume(JCR *jcr, DEVICE *dev) { return 1; }
430 int dir_update_file_attributes(JCR *jcr, DEV_RECORD *rec) { return 1;}
431 int dir_send_job_status(JCR *jcr) {return 1;}
434 int dir_ask_sysop_to_mount_volume(JCR *jcr, DEVICE *dev)
436 fprintf(stderr, "Mount Volume %s on device %s and press return when ready: ",
437 jcr->VolumeName, dev_name(dev));