2 * Bacula File Daemon restore.c Restorefiles.
4 * Kern Sibbald, November MM
10 Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
12 This program is free software; you can redistribute it and/or
13 modify it under the terms of the GNU General Public License as
14 published by the Free Software Foundation; either version 2 of
15 the License, or (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU General Public
23 License along with this program; if not, write to the Free
24 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
32 /* Data received from Storage Daemon */
33 static char rec_header[] = "rechdr %ld %ld %ld %ld %ld";
35 /* Forward referenced functions */
36 static void print_ls_output(JCR *jcr, char *fname, char *lname, int type, struct stat *statp);
38 #define RETRY 10 /* retry wait time */
41 * Restore the requested files.
44 void do_restore(JCR *jcr)
48 POOLMEM *fname; /* original file name */
49 POOLMEM *ofile; /* output name with possible prefix */
50 POOLMEM *lname; /* link name */
53 uint32_t VolSessionId, VolSessionTime, file_index;
54 uint32_t record_file_index;
61 wherelen = strlen(jcr->where);
63 sd = jcr->store_bsock;
64 jcr->JobStatus = JS_Running;
66 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_READ)) {
69 jcr->buf_size = sd->msglen;
71 fname = get_pool_memory(PM_FNAME);
72 ofile = get_pool_memory(PM_FNAME);
73 lname = get_pool_memory(PM_FNAME);
76 uint32_t compress_buf_size = jcr->buf_size + 12 + ((jcr->buf_size+999) / 1000) + 100;
77 jcr->compress_buf = (char *)bmalloc(compress_buf_size);
81 * Get a record from the Storage daemon
83 while (bnet_recv(sd) > 0 && !job_cancelled(jcr)) {
85 * First we expect a Stream Record Header
87 if (sscanf(sd->msg, rec_header, &VolSessionId, &VolSessionTime, &file_index,
88 &stream, &size) != 5) {
89 Jmsg1(jcr, M_FATAL, 0, _("Record header scan error: %s\n"), sd->msg);
92 Dmsg2(30, "Got hdr: FilInx=%d Stream=%d.\n", file_index, stream);
95 * Now we expect the Stream Data
97 if (bnet_recv(sd) < 0 && !job_cancelled(jcr)) {
98 Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), bnet_strerror(sd));
100 if (size != ((uint32_t) sd->msglen)) {
101 Jmsg2(jcr, M_FATAL, 0, _("Actual data size %d not same as header %d\n"), sd->msglen, size);
104 Dmsg1(30, "Got stream data, len=%d\n", sd->msglen);
106 /* File Attributes stream */
107 if (stream == STREAM_UNIX_ATTRIBUTES) {
110 Dmsg1(30, "Stream=Unix Attributes. extract=%d\n", extract);
111 /* If extracting, it was from previous stream, so
112 * close the output file.
116 Emsg0(M_ABORT, 0, _("Logic error output file should be open\n"));
121 set_statp(jcr, fname, ofile, lname, type, &statp);
122 Dmsg0(30, "Stop extracting.\n");
125 if ((int)sizeof_pool_memory(fname) < sd->msglen) {
126 fname = realloc_pool_memory(fname, sd->msglen + 1);
128 if (sizeof_pool_memory(ofile) < sizeof_pool_memory(fname) + wherelen + 1) {
129 ofile = realloc_pool_memory(ofile, sizeof_pool_memory(fname) + wherelen + 1);
131 if ((int)sizeof_pool_memory(lname) < sd->msglen) {
132 lname = realloc_pool_memory(lname, sd->msglen + 1);
138 * An Attributes record consists of:
143 * Link name (if file linked i.e. FT_LNK)
146 if (sscanf(sd->msg, "%d %d", &record_file_index, &type) != 2) {
147 Jmsg(jcr, M_FATAL, 0, _("Error scanning record header: %s\n"), sd->msg);
148 Dmsg0(0, "\nError scanning header\n");
151 Dmsg2(30, "Got Attr: FilInx=%d type=%d\n", record_file_index, type);
152 if (record_file_index != file_index) {
153 Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"),
154 file_index, record_file_index);
155 Dmsg0(0, "File index error\n");
159 while (*ap++ != ' ') /* skip record file index */
161 while (*ap++ != ' ') /* skip type */
163 /* Save filename and position to attributes */
166 *fp++ = *ap++; /* copy filename to fname */
168 *fp = *ap++; /* terminate filename & point to attribs */
170 /* Skip to Link name */
171 if (type == FT_LNK) {
176 strcat(lname, lp); /* "save" link name */
181 decode_stat(ap, &statp);
183 * Prepend the where directory so that the
184 * files are put where the user wants.
186 * We do a little jig here to handle Win32 files with
188 * If where is null and we are running on a win32 client,
190 * Otherwise, if the second character of the filename is a
191 * colon (:), change it into a slash (/) -- this creates
192 * a reasonable pathname on most systems.
194 if (jcr->where[0] == 0 && win32_client) {
195 strcpy(ofile, fname);
197 strcpy(ofile, jcr->where);
198 if (fname[1] == ':') {
200 strcat(ofile, fname);
203 strcat(ofile, fname);
207 Dmsg1(30, "Outfile=%s\n", ofile);
208 print_ls_output(jcr, ofile, lname, type, &statp);
210 extract = create_file(jcr, fname, ofile, lname, type, &statp, &ofd);
211 Dmsg1(40, "Extract=%d\n", extract);
215 jcr->num_files_examined++;
218 } else if (stream == STREAM_FILE_DATA) {
220 Dmsg2(30, "Write %d bytes, total before write=%d\n", sd->msglen, total);
221 if (write(ofd, sd->msg, sd->msglen) != sd->msglen) {
222 Dmsg0(0, "===Write error===\n");
223 Jmsg2(jcr, M_ERROR, 0, "Write error on %s: %s\n", ofile, strerror(errno));
227 jcr->JobBytes += sd->msglen;
230 /* GZIP data stream */
231 } else if (stream == STREAM_GZIP_DATA) {
237 compress_len = compress_buf_size;
238 Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, sd->msglen);
239 if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len,
240 (const Byte *)sd->msg, (uLong)sd->msglen)) != Z_OK) {
241 Jmsg(jcr, M_ERROR, 0, _("Uncompression error. ERR=%d\n"), stat);
245 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
246 if ((uLong)write(ofd, jcr->compress_buf, compress_len) != compress_len) {
247 Dmsg0(0, "===Write error===\n");
248 Jmsg2(jcr, M_ERROR, 0, "Write error on %s: %s\n", ofile, strerror(errno));
251 total += compress_len;
252 jcr->JobBytes += compress_len;
256 Jmsg(jcr, M_ERROR, 0, "GZIP data stream found, but GZIP not configured!\n");
260 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
261 } else if (extract) {
262 Dmsg1(30, "Found wierd stream %d\n", stream);
264 Emsg0(M_ABORT, 0, _("Logic error output file should be open\n"));
269 set_statp(jcr, fname, ofile, lname, type, &statp);
270 } else if (stream != STREAM_MD5_SIGNATURE) {
271 Dmsg2(0, "None of above!!! stream=%d data=%s\n", stream,sd->msg);
275 /* If output file is still open, it was the last one in the
276 * archive since we just hit an end of file, so close the file.
280 set_statp(jcr, fname, ofile, lname, type, &statp);
282 jcr->JobStatus = JS_Terminated;
286 jcr->JobStatus = JS_ErrorTerminated;
288 if (jcr->compress_buf) {
289 free(jcr->compress_buf);
290 jcr->compress_buf = NULL;
292 free_pool_memory(fname);
293 free_pool_memory(ofile);
294 free_pool_memory(lname);
295 Dmsg2(10, "End Do Restore. Files=%d Bytes=%" lld "\n", jcr->JobFiles,
299 extern char *getuser(uid_t uid);
300 extern char *getgroup(gid_t gid);
303 * Print an ls style message, also send INFO
305 static void print_ls_output(JCR *jcr, char *fname, char *lname, int type, struct stat *statp)
312 p = encode_mode(statp->st_mode, buf);
313 n = sprintf(p, " %2d ", (uint32_t)statp->st_nlink);
315 n = sprintf(p, "%-8.8s %-8.8s", getuser(statp->st_uid), getgroup(statp->st_gid));
317 n = sprintf(p, "%8.8s ", edit_uint64(statp->st_size, ec1));
319 p = encode_time(statp->st_ctime, p);
322 for (f=fname; *f && (p-buf) < (int)sizeof(buf); )
324 if (type == FT_LNK) {
330 for (f=lname; *f && (p-buf) < (int)sizeof(buf); )
336 Jmsg(jcr, M_INFO, 0, buf);