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 with possible prefix */
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 ((int)sizeof_pool_memory(ofile) < sd->msglen + wherelen + 1) {
129 ofile = realloc_pool_memory(ofile, sd->msglen + wherelen + 1);
131 if ((int)sizeof_pool_memory(lname) < sd->msglen + wherelen + 1) {
132 lname = realloc_pool_memory(lname, sd->msglen + wherelen + 1);
138 * An Attributes record consists of:
143 * Link name (if file linked i.e. FT_LNK)
146 Dmsg1(100, "Attr: %s\n", sd->msg);
147 if (sscanf(sd->msg, "%d %d", &record_file_index, &type) != 2) {
148 Jmsg(jcr, M_FATAL, 0, _("Error scanning attributes: %s\n"), sd->msg);
149 Dmsg1(000, "\nError scanning attributes. %s\n", sd->msg);
152 Dmsg2(100, "Got Attr: FilInx=%d type=%d\n", record_file_index, type);
153 if (record_file_index != file_index) {
154 Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"),
155 file_index, record_file_index);
156 Dmsg0(000, "File index error\n");
160 while (*ap++ != ' ') /* skip record file index */
162 while (*ap++ != ' ') /* skip type */
164 /* Save filename and position to attributes */
167 *fp++ = *ap++; /* copy filename to fname */
169 *fp = *ap++; /* terminate filename & point to attribs */
171 /* Skip to Link name */
172 if (type == FT_LNK || type == FT_LNKSAVED) {
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);
198 strcpy(ofile, jcr->where);
199 if (fname[1] == ':') {
201 strcat(ofile, fname);
204 strcat(ofile, fname);
206 /* Fixup link name */
207 if (type == FT_LNK || type == FT_LNKSAVED) {
208 if (lp[0] == '/') { /* if absolute path */
209 strcpy(lname, jcr->where);
211 /* ***FIXME**** we shouldn't have links on Windoz */
222 Dmsg1(30, "Outfile=%s\n", ofile);
223 print_ls_output(jcr, ofile, lname, type, &statp);
225 extract = create_file(jcr, fname, ofile, lname, type, &statp, &ofd);
226 Dmsg1(40, "Extract=%d\n", extract);
230 jcr->num_files_examined++;
233 } else if (stream == STREAM_FILE_DATA) {
235 Dmsg2(30, "Write %d bytes, total before write=%d\n", sd->msglen, total);
236 if (write(ofd, sd->msg, sd->msglen) != sd->msglen) {
237 Dmsg0(0, "===Write error===\n");
238 Jmsg2(jcr, M_ERROR, 0, "Write error on %s: %s\n", ofile, strerror(errno));
242 jcr->JobBytes += sd->msglen;
245 /* GZIP data stream */
246 } else if (stream == STREAM_GZIP_DATA) {
252 compress_len = compress_buf_size;
253 Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, sd->msglen);
254 if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len,
255 (const Byte *)sd->msg, (uLong)sd->msglen)) != Z_OK) {
256 Jmsg(jcr, M_ERROR, 0, _("Uncompression error. ERR=%d\n"), stat);
260 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
261 if ((uLong)write(ofd, jcr->compress_buf, compress_len) != compress_len) {
262 Dmsg0(0, "===Write error===\n");
263 Jmsg2(jcr, M_ERROR, 0, "Write error on %s: %s\n", ofile, strerror(errno));
266 total += compress_len;
267 jcr->JobBytes += compress_len;
271 Jmsg(jcr, M_ERROR, 0, "GZIP data stream found, but GZIP not configured!\n");
275 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
276 } else if (extract) {
277 Dmsg1(30, "Found wierd stream %d\n", stream);
279 Emsg0(M_ABORT, 0, _("Logic error output file should be open\n"));
284 set_statp(jcr, fname, ofile, lname, type, &statp);
285 } else if (stream != STREAM_MD5_SIGNATURE) {
286 Dmsg2(0, "None of above!!! stream=%d data=%s\n", stream,sd->msg);
290 /* If output file is still open, it was the last one in the
291 * archive since we just hit an end of file, so close the file.
295 set_statp(jcr, fname, ofile, lname, type, &statp);
297 jcr->JobStatus = JS_Terminated;
301 jcr->JobStatus = JS_ErrorTerminated;
303 if (jcr->compress_buf) {
304 free(jcr->compress_buf);
305 jcr->compress_buf = NULL;
307 free_pool_memory(fname);
308 free_pool_memory(ofile);
309 free_pool_memory(lname);
310 Dmsg2(10, "End Do Restore. Files=%d Bytes=%" lld "\n", jcr->JobFiles,
314 extern char *getuser(uid_t uid);
315 extern char *getgroup(gid_t gid);
318 * Print an ls style message, also send INFO
320 static void print_ls_output(JCR *jcr, char *fname, char *lname, int type, struct stat *statp)
327 p = encode_mode(statp->st_mode, buf);
328 n = sprintf(p, " %2d ", (uint32_t)statp->st_nlink);
330 n = sprintf(p, "%-8.8s %-8.8s", getuser(statp->st_uid), getgroup(statp->st_gid));
332 n = sprintf(p, "%8.8s ", edit_uint64(statp->st_size, ec1));
334 p = encode_time(statp->st_ctime, p);
337 for (f=fname; *f && (p-buf) < (int)sizeof(buf); )
339 if (type == FT_LNK) {
345 for (f=lname; *f && (p-buf) < (int)sizeof(buf); )
351 Jmsg(jcr, M_INFO, 0, buf);