1 /* -*- c-file-style: "linux" -*-
3 rsync -- fast file replication program
5 Copyright (C) 1996-2000 by Andrew Tridgell
6 Copyright (C) Paul Mackerras 1996
7 Copyright (C) 2002 by Martin Pool <mbp@samba.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 extern int log_format_has_i;
29 extern int log_format_has_o_or_i;
30 extern int daemon_log_format_has_i;
34 extern int relative_paths;
35 extern int keep_dirlinks;
36 extern int preserve_links;
37 extern int preserve_devices;
38 extern int preserve_hard_links;
39 extern int preserve_perms;
40 extern int preserve_uid;
41 extern int preserve_gid;
42 extern int preserve_times;
43 extern int omit_dir_times;
44 extern int delete_during;
45 extern int remove_sent_files;
46 extern int update_only;
47 extern int opt_ignore_existing;
49 extern int make_backups;
50 extern int csum_length;
51 extern int ignore_times;
53 extern OFF_T max_size;
54 extern int io_timeout;
55 extern int ignore_timeout;
56 extern int protocol_version;
57 extern int fuzzy_basis;
58 extern int always_checksum;
59 extern char *partial_dir;
60 extern char *basis_dir[];
61 extern int compare_dest;
63 extern int whole_file;
64 extern int local_server;
66 extern int read_batch;
67 extern int only_existing;
68 extern int orig_umask;
69 extern int safe_symlinks;
70 extern long block_size; /* "long" because popt can't set an int32. */
71 extern struct stats stats;
73 extern struct filter_list_struct server_filter_list;
75 static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
78 && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
81 if (am_root && preserve_uid && st->st_uid != file->uid)
84 if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
91 #define SID_UPDATING ITEM_UPDATING
92 #define SID_REPORT_CHECKSUM ITEM_REPORT_CHECKSUM
93 #define SID_USING_ALT_BASIS ITEM_USING_ALT_BASIS
94 /* This flag doesn't get sent, so it must be outside 0xffff. */
95 #define SID_NO_DEST_AND_NO_UPDATE (1<<16)
97 static void itemize(struct file_struct *file, int statret, STRUCT_STAT *st,
98 int32 sflags, int f_out, int ndx)
100 int iflags = sflags & 0xffff;
103 if (S_ISREG(file->mode) && file->length != st->st_size)
104 iflags |= ITEM_REPORT_SIZE;
105 if (!(sflags & SID_NO_DEST_AND_NO_UPDATE)) {
106 int keep_time = !preserve_times ? 0
107 : S_ISDIR(file->mode) ? !omit_dir_times
108 : !S_ISLNK(file->mode);
110 if ((iflags & ITEM_UPDATING && !keep_time)
111 || (keep_time && file->modtime != st->st_mtime))
112 iflags |= ITEM_REPORT_TIME;
113 if (preserve_perms && file->mode != st->st_mode)
114 iflags |= ITEM_REPORT_PERMS;
115 if (preserve_uid && am_root && file->uid != st->st_uid)
116 iflags |= ITEM_REPORT_OWNER;
117 if (preserve_gid && file->gid != GID_NONE
118 && st->st_gid != file->gid)
119 iflags |= ITEM_REPORT_GROUP;
122 iflags |= ITEM_IS_NEW | ITEM_UPDATING;
124 if ((iflags || verbose > 1) && !read_batch) {
125 if (protocol_version >= 29) {
127 write_int(f_out, ndx);
128 write_shortint(f_out, iflags);
130 log_recv(file, &stats, iflags);
135 /* Perform our quick-check heuristic for determining if a file is unchanged. */
136 static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
138 if (st->st_size != file->length)
141 /* if always checksum is set then we use the checksum instead
142 of the file time to determine whether to sync */
143 if (always_checksum && S_ISREG(st->st_mode)) {
144 char sum[MD4_SUM_LENGTH];
145 file_checksum(fn, sum, st->st_size);
146 return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
147 : MD4_SUM_LENGTH) == 0;
156 return cmp_modtime(st->st_mtime, file->modtime) == 0;
161 * set (initialize) the size entries in the per-file sum_struct
162 * calculating dynamic block and checksum sizes.
164 * This is only called from generate_and_send_sums() but is a separate
165 * function to encapsulate the logic.
167 * The block size is a rounded square root of file length.
169 * The checksum size is determined according to:
170 * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len)
171 * provided by Donovan Baarda which gives a probability of rsync
172 * algorithm corrupting data and falling back using the whole md4
175 * This might be made one of several selectable heuristics.
177 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
183 blength = block_size;
184 else if (len <= BLOCK_SIZE * BLOCK_SIZE)
185 blength = BLOCK_SIZE;
190 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
191 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
192 blength = MAX_BLOCK_SIZE;
197 if (len < (int64)blength * blength)
200 } while (c >= 8); /* round to multiple of 8 */
201 blength = MAX(blength, BLOCK_SIZE);
205 if (protocol_version < 27) {
206 s2length = csum_length;
207 } else if (csum_length == SUM_LENGTH) {
208 s2length = SUM_LENGTH;
212 int b = BLOCKSUM_BIAS;
213 for (l = len; l >>= 1; b += 2) {}
214 for (c = blength; c >>= 1 && b; b--) {}
215 /* add a bit, subtract rollsum, round up. */
216 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
217 s2length = MAX(s2length, csum_length);
218 s2length = MIN(s2length, SUM_LENGTH);
222 sum->blength = blength;
223 sum->s2length = s2length;
224 sum->count = (len + (blength - 1)) / blength;
225 sum->remainder = (len % blength);
227 if (sum->count && verbose > 2) {
229 "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
230 (double)sum->count, (long)sum->remainder, (long)sum->blength,
231 sum->s2length, (double)sum->flength);
237 * Generate and send a stream of signatures/checksums that describe a buffer
239 * Generate approximately one checksum every block_len bytes.
241 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
244 struct map_struct *mapbuf;
245 struct sum_struct sum;
248 sum_sizes_sqroot(&sum, len);
251 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
255 write_sum_head(f_out, &sum);
257 for (i = 0; i < sum.count; i++) {
258 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
259 char *map = map_ptr(mapbuf, offset, n1);
260 uint32 sum1 = get_checksum1(map, n1);
261 char sum2[SUM_LENGTH];
264 full_write(f_copy, map, n1);
266 get_checksum2(map, n1, sum2);
270 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
271 (double)i, (double)offset, (long)n1,
272 (unsigned long)sum1);
274 write_int(f_out, sum1);
275 write_buf(f_out, sum2, sum.s2length);
285 /* Try to find a filename in the same dir as "fname" with a similar name. */
286 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
288 int fname_len, fname_suf_len;
289 const char *fname_suf, *fname = file->basename;
290 uint32 lowest_dist = 0x7FFFFFFF;
291 int j, lowest_j = -1;
293 fname_len = strlen(fname);
294 fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
296 for (j = 0; j < dirlist->count; j++) {
297 struct file_struct *fp = dirlist->files[j];
298 const char *suf, *name;
302 if (!S_ISREG(fp->mode) || !fp->length
303 || fp->flags & FLAG_NO_FUZZY)
308 if (fp->length == file->length
309 && fp->modtime == file->modtime) {
312 "fuzzy size/modtime match for %s\n",
319 suf = find_filename_suffix(name, len, &suf_len);
321 dist = fuzzy_distance(name, len, fname, fname_len);
322 /* Add some extra weight to how well the suffixes match. */
323 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
326 rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
327 name, (int)(dist>>16), (int)(dist&0xFFFF));
329 if (dist <= lowest_dist) {
339 /* Acts on flist->file's ndx'th item, whose name is fname. If a directory,
340 * make sure it exists, and has the right permissions/timestamp info. For
341 * all other non-regular files (symlinks, etc.) we create them here. For
342 * regular files that have changed, we try to find a basis file and then
343 * start sending checksums.
345 * Note that f_out is set to -1 when doing final directory-permission and
346 * modification-time repair. */
347 static void recv_generator(char *fname, struct file_list *flist,
348 struct file_struct *file, int ndx,
349 int itemizing, int maybe_PERMS_REPORT,
351 int f_out, int f_out_name)
353 static int missing_below = -1, excluded_below = -1;
354 static char *fuzzy_dirname = NULL;
355 static struct file_list *fuzzy_dirlist = NULL;
356 struct file_struct *fuzzy_file = NULL;
357 int fd = -1, f_copy = -1;
358 STRUCT_STAT st, partial_st;
359 struct file_struct *back_file = NULL;
360 int statret, stat_errno;
361 char *fnamecmp, *partialptr, *backupptr = NULL;
362 char fnamecmpbuf[MAXPATHLEN];
370 flist_free(fuzzy_dirlist);
371 fuzzy_dirlist = NULL;
372 fuzzy_dirname = NULL;
374 if (missing_below >= 0) {
382 rprintf(FINFO, "recv_generator(%s,%d)\n",
383 safe_fname(fname), ndx);
386 if (server_filter_list.head) {
387 if (excluded_below >= 0) {
388 if (file->dir.depth > excluded_below)
392 if (check_filter(&server_filter_list, fname,
393 S_ISDIR(file->mode)) < 0) {
394 if (S_ISDIR(file->mode))
395 excluded_below = file->dir.depth;
399 "skipping server-excluded file \"%s\"\n",
406 if (missing_below >= 0 && file->dir.depth <= missing_below) {
414 if (fuzzy_basis && S_ISREG(file->mode)) {
415 char *dn = file->dirname ? file->dirname : ".";
416 /* Yes, identical dirnames are guaranteed to have
417 * identical pointers at this point. */
418 if (fuzzy_dirname != dn) {
420 flist_free(fuzzy_dirlist);
422 fuzzy_dirlist = get_dirlist(fuzzy_dirname, 1);
426 statret = link_stat(fname, &st,
427 keep_dirlinks && S_ISDIR(file->mode));
431 if (only_existing && statret == -1 && stat_errno == ENOENT) {
432 /* we only want to update existing files */
434 rprintf(FINFO, "not creating new file \"%s\"\n",
440 if (statret == 0 && !preserve_perms
441 && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
442 /* if the file exists already and we aren't perserving
443 * permissions then act as though the remote end sent
444 * us the file permissions we already have */
445 file->mode = (file->mode & ~CHMOD_BITS)
446 | (st.st_mode & CHMOD_BITS);
449 if (S_ISDIR(file->mode)) {
450 /* The file to be received is a directory, so we need
451 * to prepare appropriately. If there is already a
452 * file of that name and it is *not* a directory, then
453 * we need to delete it. If it doesn't exist, then
454 * (perhaps recursively) create it. */
455 if (statret == 0 && !S_ISDIR(st.st_mode)) {
456 delete_file(fname, st.st_mode, DEL_TERSE);
459 if (dry_run && statret != 0 && missing_below < 0) {
460 missing_below = file->dir.depth;
463 if (itemizing && f_out != -1)
464 itemize(file, statret, &st, 0, f_out, ndx);
465 if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
466 if (!relative_paths || errno != ENOENT
467 || create_directory_path(fname, orig_umask) < 0
468 || do_mkdir(fname, file->mode) < 0) {
469 rsyserr(FERROR, errno,
470 "recv_generator: mkdir %s failed",
474 if (set_perms(fname, file, statret ? NULL : &st, 0)
475 && verbose && code && f_out != -1)
476 rprintf(code, "%s/\n", safe_fname(fname));
477 if (delete_during && f_out != -1 && csum_length != SUM_LENGTH
478 && (file->flags & FLAG_DEL_HERE))
479 delete_in_dir(flist, fname, file);
483 if (max_size && file->length > max_size) {
485 rprintf(FINFO, "%s is over max-size\n",
491 if (preserve_links && S_ISLNK(file->mode)) {
493 if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
496 "ignoring unsafe symlink %s -> \"%s\"\n",
498 safe_fname(file->u.link));
503 char lnk[MAXPATHLEN];
506 if (!S_ISDIR(st.st_mode)
507 && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) {
509 /* A link already pointing to the
510 * right place -- no further action
512 if (strcmp(lnk, file->u.link) == 0) {
514 itemize(file, 0, &st, 0,
517 set_perms(fname, file, &st,
522 /* Not the right symlink (or not a symlink), so
524 if (S_ISLNK(st.st_mode))
525 delete_file(fname, st.st_mode, DEL_TERSE);
527 delete_file(fname, st.st_mode, DEL_TERSE);
531 if (do_symlink(file->u.link,fname) != 0) {
532 rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
533 full_fname(fname), safe_fname(file->u.link));
535 set_perms(fname,file,NULL,0);
537 itemize(file, statret, &st, SID_UPDATING,
540 if (code && verbose) {
541 rprintf(code, "%s -> %s\n", safe_fname(fname),
542 safe_fname(file->u.link));
544 if (remove_sent_files && !dry_run) {
546 SIVAL(numbuf, 0, ndx);
547 send_msg(MSG_SUCCESS, numbuf, 4);
554 if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
556 st.st_mode != file->mode ||
557 st.st_rdev != file->u.rdev) {
558 if (IS_DEVICE(st.st_mode))
559 delete_file(fname, st.st_mode, DEL_TERSE);
561 delete_file(fname, st.st_mode, DEL_TERSE);
565 rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
567 (int)file->mode, (int)file->u.rdev);
569 if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
570 rsyserr(FERROR, errno, "mknod %s failed",
573 set_perms(fname,file,NULL,0);
575 itemize(file, statret, &st, SID_UPDATING,
578 if (code && verbose) {
579 rprintf(code, "%s\n",
585 itemize(file, statret, &st, 0,
588 set_perms(fname, file, &st, maybe_PERMS_REPORT);
593 if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER))
596 if (!S_ISREG(file->mode)) {
597 rprintf(FINFO, "skipping non-regular file \"%s\"\n",
603 fnamecmp_type = FNAMECMP_FNAME;
605 if (statret != 0 && basis_dir[0] != NULL) {
606 int fallback_match = -1;
610 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
611 basis_dir[i], fname);
612 if (link_stat(fnamecmpbuf, &st, 0) == 0
613 && S_ISREG(st.st_mode)) {
619 } else if (match_level == 2
620 && !unchanged_attrs(file, &st))
622 if (!unchanged_file(fnamecmpbuf, file, &st))
626 if (!unchanged_attrs(file, &st))
632 } while (basis_dir[++i] != NULL);
634 if (match_level < 3) {
636 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
637 basis_dir[i], fname);
640 if (link_dest && match_level == 3 && !dry_run) {
641 if (do_link(fnamecmpbuf, fname) < 0) {
643 rsyserr(FINFO, errno,
645 full_fname(fnamecmpbuf),
648 fnamecmp = fnamecmpbuf;
654 fnamecmp = fnamecmpbuf;
660 if (statret == 0 && !S_ISREG(st.st_mode)) {
661 if (delete_file(fname, st.st_mode, DEL_TERSE) != 0)
667 if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
668 && link_stat(partialptr, &partial_st, 0) == 0
669 && S_ISREG(partial_st.st_mode)) {
671 goto prepare_to_open;
675 if (statret != 0 && fuzzy_basis && dry_run <= 1) {
676 int j = find_fuzzy(file, fuzzy_dirlist);
678 fuzzy_file = fuzzy_dirlist->files[j];
679 f_name_to(fuzzy_file, fnamecmpbuf);
681 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
682 safe_fname(fname), safe_fname(fnamecmpbuf));
684 st.st_mode = fuzzy_file->mode;
685 st.st_size = fuzzy_file->length;
686 st.st_mtime = fuzzy_file->modtime;
688 fnamecmp = fnamecmpbuf;
689 fnamecmp_type = FNAMECMP_FUZZY;
694 if (preserve_hard_links && hard_link_check(file, HL_SKIP))
696 if (stat_errno == ENOENT)
699 rsyserr(FERROR, stat_errno,
700 "recv_generator: failed to stat %s",
706 if (opt_ignore_existing && fnamecmp_type == FNAMECMP_FNAME) {
708 rprintf(FINFO, "%s exists\n", safe_fname(fname));
712 if (update_only && fnamecmp_type == FNAMECMP_FNAME
713 && cmp_modtime(st.st_mtime, file->modtime) > 0) {
715 rprintf(FINFO, "%s is newer\n", safe_fname(fname));
719 if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
721 else if (fnamecmp_type == FNAMECMP_FUZZY)
723 else if (unchanged_file(fnamecmp, file, &st)) {
725 itemize(file, statret, &st,
726 fnamecmp_type == FNAMECMP_FNAME
727 ? 0 : SID_NO_DEST_AND_NO_UPDATE,
730 if (fnamecmp_type == FNAMECMP_FNAME)
731 set_perms(fname, file, &st, maybe_PERMS_REPORT);
738 fnamecmp = partialptr;
739 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
743 if (dry_run || read_batch)
745 if (whole_file > 0) {
752 int j = flist_find(fuzzy_dirlist, file);
753 if (j >= 0) /* don't use changing file as future fuzzy basis */
754 fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY;
758 fd = do_open(fnamecmp, O_RDONLY, 0);
761 rsyserr(FERROR, errno, "failed to open %s, continuing",
762 full_fname(fnamecmp));
764 /* pretend the file didn't exist */
765 if (preserve_hard_links && hard_link_check(file, HL_SKIP))
771 if (inplace && make_backups) {
772 if (!(backupptr = get_backup_name(fname))) {
776 if (!(back_file = make_file(fname, NULL, NO_FILTERS))) {
778 goto pretend_missing;
780 if (robust_unlink(backupptr) && errno != ENOENT) {
781 rsyserr(FERROR, errno, "unlink %s",
782 full_fname(backupptr));
787 if ((f_copy = do_open(backupptr,
788 O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
789 rsyserr(FERROR, errno, "open %s",
790 full_fname(backupptr));
795 fnamecmp_type = FNAMECMP_BACKUP;
799 rprintf(FINFO, "gen mapped %s of size %.0f\n",
800 safe_fname(fnamecmp), (double)st.st_size);
804 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
807 write_int(f_out, ndx);
809 int iflags = SID_UPDATING;
811 iflags |= SID_REPORT_CHECKSUM;
812 if (fnamecmp_type != FNAMECMP_FNAME)
813 iflags |= SID_USING_ALT_BASIS;
814 itemize(file, statret, &st, iflags, f_out, -1);
816 if (f_out_name >= 0) {
817 write_byte(f_out_name, fnamecmp_type);
818 if (fnamecmp_type == FNAMECMP_FUZZY) {
819 uchar lenbuf[3], *lb = lenbuf;
820 int len = strlen(fuzzy_file->basename);
822 #if MAXPATHLEN > 0x7FFF
823 *lb++ = len / 0x10000 + 0x80;
826 *lb++ = len / 0x100 + 0x80;
830 write_buf(f_out_name, (char*)lenbuf, lb - lenbuf + 1);
831 write_buf(f_out_name, fuzzy_file->basename, len);
835 if (dry_run || read_batch)
839 generate_and_send_sums(fd, st.st_size, f_out, f_copy);
843 set_perms(backupptr, back_file, NULL, 0);
845 rprintf(FINFO, "backed up %s to %s\n",
846 safe_fname(fname), safe_fname(backupptr));
853 write_sum_head(f_out, NULL);
857 void generate_files(int f_out, struct file_list *flist, char *local_name,
862 char fbuf[MAXPATHLEN];
863 int itemizing, maybe_PERMS_REPORT;
865 int need_retouch_dir_times = preserve_times && !omit_dir_times;
866 int need_retouch_dir_perms = 0;
867 int save_only_existing = only_existing;
868 int save_opt_ignore_existing = opt_ignore_existing;
869 int allowed_lull = io_timeout / 2;
871 if (protocol_version >= 29) {
873 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
874 code = daemon_log_format_has_i ? 0 : FLOG;
875 } else if (am_daemon) {
876 itemizing = daemon_log_format_has_i && !dry_run;
877 maybe_PERMS_REPORT = PERMS_REPORT;
878 code = itemizing || dry_run ? FCLIENT : FINFO;
879 } else if (!am_server) {
880 itemizing = log_format_has_i;
881 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
882 code = itemizing ? 0 : FINFO;
885 maybe_PERMS_REPORT = PERMS_REPORT;
890 rprintf(FINFO, "generator starting pid=%ld count=%d\n",
891 (long)getpid(), flist->count);
895 rprintf(FINFO, "delta-transmission %s\n",
897 ? "disabled for local transfer or --whole-file"
901 if (protocol_version < 29)
904 for (i = 0; i < flist->count; i++) {
905 struct file_struct *file = flist->files[i];
906 struct file_struct copy;
911 /* We need to ensure that any dirs we create have writeable
912 * permissions during the time we are putting files within
913 * them. This is then fixed after the transfer is done. */
914 if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) {
916 copy.mode |= S_IWUSR; /* user write */
918 need_retouch_dir_perms = 1;
921 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
922 flist, file, i, itemizing, maybe_PERMS_REPORT,
923 code, f_out, f_out_name);
925 if (allowed_lull && !(i % 100))
926 maybe_send_keepalive(allowed_lull, flist->count);
928 recv_generator(NULL, NULL, NULL, 0, 0, 0, code, -1, -1);
930 delete_in_dir(NULL, NULL, NULL);
933 csum_length = SUM_LENGTH;
934 only_existing = max_size = opt_ignore_existing = 0;
935 update_only = always_checksum = size_only = 0;
938 /* We expect to just sit around now, so don't exit on a timeout.
939 * If we really get a timeout then the other process should exit. */
943 rprintf(FINFO,"generate_files phase=%d\n",phase);
945 write_int(f_out, -1);
947 /* files can cycle through the system more than once
948 * to catch initial checksum errors */
949 while ((i = get_redo_num()) != -1) {
950 struct file_struct *file = flist->files[i];
951 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
952 flist, file, i, itemizing, maybe_PERMS_REPORT,
953 code, f_out, f_out_name);
955 maybe_send_keepalive(allowed_lull, flist->count);
959 only_existing = save_only_existing;
960 opt_ignore_existing = save_opt_ignore_existing;
963 rprintf(FINFO,"generate_files phase=%d\n",phase);
965 write_int(f_out, -1);
967 /* Read post-redo-phase MSG_DONE and any prior messages. */
970 if (preserve_hard_links)
973 if ((need_retouch_dir_perms || need_retouch_dir_times)
974 && !list_only && !local_name && !dry_run) {
975 /* Now we need to fix any directory permissions that were
976 * modified during the transfer and/or re-set any tweaked
977 * modified-time values. */
978 for (i = 0; i < flist->count; i++) {
979 struct file_struct *file = flist->files[i];
980 if (!file->basename || !S_ISDIR(file->mode))
982 if (!need_retouch_dir_times && file->mode & S_IWUSR)
984 recv_generator(local_name ? local_name : f_name(file),
985 flist, file, i, itemizing,
986 maybe_PERMS_REPORT, code, -1, -1);
989 recv_generator(NULL, NULL, NULL, 0, 0, 0, code, -1, -1);
992 rprintf(FINFO,"generate_files finished\n");