2 * Routines that are exclusive to the generator process.
4 * Copyright (C) 1996-2000 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2003, 2004, 2005, 2006, 2007 Wayne Davison
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 along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
29 extern int stdout_format_has_i;
30 extern int logfile_format_has_i;
34 extern int inc_recurse;
35 extern int do_progress;
36 extern int relative_paths;
37 extern int implied_dirs;
38 extern int keep_dirlinks;
39 extern int preserve_links;
40 extern int preserve_devices;
41 extern int preserve_specials;
42 extern int preserve_hard_links;
43 extern int preserve_perms;
44 extern int preserve_uid;
45 extern int preserve_gid;
46 extern int preserve_times;
47 extern int omit_dir_times;
48 extern int delete_mode;
49 extern int delete_before;
50 extern int delete_during;
51 extern int delete_after;
52 extern int msgdone_cnt;
53 extern int ignore_errors;
54 extern int remove_source_files;
55 extern int delay_updates;
56 extern int update_only;
57 extern int ignore_existing;
58 extern int ignore_non_existing;
60 extern int append_mode;
61 extern int make_backups;
62 extern int csum_length;
63 extern int ignore_times;
65 extern OFF_T max_size;
66 extern OFF_T min_size;
69 extern int allowed_lull;
70 extern int sock_f_out;
71 extern int ignore_timeout;
72 extern int protocol_version;
73 extern int file_total;
74 extern int fuzzy_basis;
75 extern int always_checksum;
76 extern int checksum_len;
77 extern char *partial_dir;
78 extern char *basis_dir[];
79 extern int compare_dest;
82 extern int whole_file;
84 extern int new_root_dir;
85 extern int read_batch;
86 extern int safe_symlinks;
87 extern long block_size; /* "long" because popt can't set an int32. */
88 extern int max_delete;
89 extern int force_delete;
90 extern int one_file_system;
91 extern struct stats stats;
92 extern dev_t filesystem_dev;
93 extern char *backup_dir;
94 extern char *backup_suffix;
95 extern int backup_suffix_len;
96 extern struct file_list *cur_flist, *first_flist, *dir_flist;
97 extern struct filter_list_struct server_filter_list;
99 int ignore_perishable = 0;
100 int non_perishable_cnt = 0;
101 int maybe_ATTRS_REPORT = 0;
103 static dev_t dev_zero;
104 static int deletion_count = 0; /* used to implement --max-delete */
105 static int deldelay_size = 0, deldelay_cnt = 0;
106 static char *deldelay_buf = NULL;
107 static int deldelay_fd = -1;
109 static int dir_tweaking;
110 static int need_retouch_dir_times;
111 static const char *solo_file = NULL;
113 /* For calling delete_item() and delete_dir_contents(). */
114 #define DEL_RECURSE (1<<1) /* recurse */
115 #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
118 TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK
122 DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
125 /* Forward declaration for delete_item(). */
126 static enum delret delete_dir_contents(char *fname, int flags);
129 static int is_backup_file(char *fn)
131 int k = strlen(fn) - backup_suffix_len;
132 return k > 0 && strcmp(fn+k, backup_suffix) == 0;
135 /* Delete a file or directory. If DEL_RECURSE is set in the flags, this will
136 * delete recursively.
138 * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
139 * a directory! (The buffer is used for recursion, but returned unchanged.)
141 static enum delret delete_item(char *fbuf, int mode, char *replace, int flags)
148 rprintf(FINFO, "delete_item(%s) mode=%o flags=%d\n",
152 if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
153 ignore_perishable = 1;
154 /* If DEL_RECURSE is not set, this just reports emptiness. */
155 ret = delete_dir_contents(fbuf, flags);
156 ignore_perishable = 0;
157 if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
159 /* OK: try to delete the directory. */
162 if (!replace && max_delete >= 0 && ++deletion_count > max_delete)
167 ok = do_rmdir(fbuf) == 0;
168 } else if (make_backups > 0 && (backup_dir || !is_backup_file(fbuf))) {
169 what = "make_backup";
170 ok = make_backup(fbuf);
173 ok = robust_unlink(fbuf) == 0;
178 log_delete(fbuf, mode);
181 if (S_ISDIR(mode) && errno == ENOTEMPTY) {
182 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
185 } else if (errno != ENOENT) {
186 rsyserr(FERROR, errno, "delete_file: %s(%s) failed",
196 if (replace && ret != DR_SUCCESS) {
197 rprintf(FERROR, "could not make way for new %s: %s\n",
203 /* The directory is about to be deleted: if DEL_RECURSE is given, delete all
204 * its contents, otherwise just checks for content. Returns DR_SUCCESS or
205 * DR_NOT_EMPTY. Note that fname must point to a MAXPATHLEN buffer! (The
206 * buffer is used for recursion, but returned unchanged.)
208 static enum delret delete_dir_contents(char *fname, int flags)
210 struct file_list *dirlist;
218 rprintf(FINFO, "delete_dir_contents(%s) flags=%d\n",
222 dlen = strlen(fname);
223 save_filters = push_local_filters(fname, dlen);
225 non_perishable_cnt = 0;
226 dirlist = get_dirlist(fname, dlen, 0);
227 ret = non_perishable_cnt ? DR_NOT_EMPTY : DR_SUCCESS;
232 if (!(flags & DEL_RECURSE)) {
238 if (dlen != 1 || *fname != '/')
240 remainder = MAXPATHLEN - (p - fname);
242 /* We do our own recursion, so make delete_item() non-recursive. */
243 flags = (flags & ~DEL_RECURSE) | DEL_DIR_IS_EMPTY;
245 for (j = dirlist->count; j--; ) {
246 struct file_struct *fp = dirlist->files[j];
248 if (fp->flags & FLAG_MOUNT_DIR) {
251 "mount point, %s, pins parent directory\n",
258 strlcpy(p, fp->basename, remainder);
259 /* Save stack by recursing to ourself directly. */
260 if (S_ISDIR(fp->mode)
261 && delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
263 if (delete_item(fname, fp->mode, NULL, flags) != DR_SUCCESS)
271 pop_local_filters(save_filters);
273 if (ret == DR_NOT_EMPTY) {
274 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
280 static int start_delete_delay_temp(void)
282 char fnametmp[MAXPATHLEN];
283 int save_dry_run = dry_run;
286 if (!get_tmpname(fnametmp, "deldelay")
287 || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) {
288 rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n",
289 inc_recurse ? "" : " -- switching to --delete-after");
291 delete_after = !inc_recurse;
292 dry_run = save_dry_run;
296 dry_run = save_dry_run;
300 static int flush_delete_delay(void)
302 if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) {
303 rsyserr(FERROR, errno, "flush of delete-delay buffer");
313 static int remember_delete(struct file_struct *file, const char *fname)
318 len = snprintf(deldelay_buf + deldelay_cnt,
319 deldelay_size - deldelay_cnt,
320 "%x %s%c", (int)file->mode, fname, '\0');
321 if ((deldelay_cnt += len) <= deldelay_size)
323 if (deldelay_fd < 0 && !start_delete_delay_temp())
326 if (!flush_delete_delay())
333 static int read_delay_line(char *buf)
335 static int read_pos = 0;
337 char *bp, *past_space;
340 for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {}
341 if (j < deldelay_cnt)
343 if (deldelay_fd < 0) {
348 deldelay_cnt -= read_pos;
349 if (deldelay_cnt == deldelay_size)
351 if (deldelay_cnt && read_pos) {
352 memmove(deldelay_buf, deldelay_buf + read_pos,
355 len = read(deldelay_fd, deldelay_buf + deldelay_cnt,
356 deldelay_size - deldelay_cnt);
360 "ERROR: unexpected EOF in delete-delay file.\n");
365 rsyserr(FERROR, errno,
366 "reading delete-delay file");
373 bp = deldelay_buf + read_pos;
375 if (sscanf(bp, "%x ", &mode) != 1) {
377 rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n");
380 past_space = strchr(bp, ' ') + 1;
381 len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */
384 if (len > MAXPATHLEN) {
385 rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n");
389 /* The caller needs the name in a MAXPATHLEN buffer, so we copy it
390 * instead of returning a pointer to our buffer. */
391 memcpy(buf, past_space, len);
396 static void do_delayed_deletions(char *delbuf)
400 if (deldelay_fd >= 0) {
401 if (deldelay_cnt && !flush_delete_delay())
403 lseek(deldelay_fd, 0, 0);
405 while ((mode = read_delay_line(delbuf)) >= 0)
406 delete_item(delbuf, mode, NULL, DEL_RECURSE);
407 if (deldelay_fd >= 0)
411 /* This function is used to implement per-directory deletion, and is used by
412 * all the --delete-WHEN options. Note that the fbuf pointer must point to a
413 * MAXPATHLEN buffer with the name of the directory in it (the functions we
414 * call will append names onto the end, but the old dir value will be restored
416 static void delete_in_dir(struct file_list *flist, char *fbuf,
417 struct file_struct *file, dev_t *fs_dev)
419 static int already_warned = 0;
420 struct file_list *dirlist;
421 char delbuf[MAXPATHLEN];
425 change_local_filter_dir(NULL, 0, 0);
430 rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
433 maybe_send_keepalive();
435 if (io_error && !ignore_errors) {
439 "IO error encountered -- skipping file deletion\n");
445 change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
447 if (one_file_system) {
448 if (file->flags & FLAG_TOP_DIR)
449 filesystem_dev = *fs_dev;
450 else if (filesystem_dev != *fs_dev)
454 dirlist = get_dirlist(fbuf, dlen, 0);
456 /* If an item in dirlist is not found in flist, delete it
457 * from the filesystem. */
458 for (i = dirlist->count; i--; ) {
459 struct file_struct *fp = dirlist->files[i];
460 if (!F_IS_ACTIVE(fp))
462 if (fp->flags & FLAG_MOUNT_DIR) {
464 rprintf(FINFO, "cannot delete mount point: %s\n",
468 if (flist_find(flist, fp) < 0) {
470 if (delete_during == 2) {
471 if (!remember_delete(fp, delbuf))
474 delete_item(delbuf, fp->mode, NULL, DEL_RECURSE);
481 /* This deletes any files on the receiving side that are not present on the
482 * sending side. This is used by --delete-before and --delete-after. */
483 static void do_delete_pass(struct file_list *flist)
485 char fbuf[MAXPATHLEN];
489 /* dry_run is incremented when the destination doesn't exist yet. */
490 if (dry_run > 1 || list_only)
493 for (j = 0; j < flist->count; j++) {
494 struct file_struct *file = flist->files[j];
496 if (!(file->flags & FLAG_XFER_DIR))
500 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
501 rprintf(FINFO, "deleting in %s\n", fbuf);
503 if (link_stat(fbuf, &st, keep_dirlinks) < 0
504 || !S_ISDIR(st.st_mode))
507 delete_in_dir(flist, fbuf, file, &st.st_dev);
509 delete_in_dir(NULL, NULL, NULL, &dev_zero);
511 if (do_progress && !am_server)
512 rprintf(FINFO, " \r");
515 int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
517 if (preserve_perms && !BITS_EQUAL(st->st_mode, file->mode, CHMOD_BITS))
520 if (am_root && preserve_uid && st->st_uid != F_UID(file))
523 if (preserve_gid && F_GID(file) != GID_NONE && st->st_gid != F_GID(file))
529 void itemize(struct file_struct *file, int ndx, int statret,
530 STRUCT_STAT *st, int32 iflags, uchar fnamecmp_type,
533 if (statret >= 0) { /* A from-dest-dir statret can == 1! */
534 int keep_time = !preserve_times ? 0
535 : S_ISDIR(file->mode) ? !omit_dir_times
536 : !S_ISLNK(file->mode);
538 if (S_ISREG(file->mode) && F_LENGTH(file) != st->st_size)
539 iflags |= ITEM_REPORT_SIZE;
540 if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time
541 && !(iflags & ITEM_MATCHED)
542 && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
543 || (keep_time && cmp_time(file->modtime, st->st_mtime) != 0))
544 iflags |= ITEM_REPORT_TIME;
545 if (!BITS_EQUAL(st->st_mode, file->mode, CHMOD_BITS))
546 iflags |= ITEM_REPORT_PERMS;
547 if (preserve_uid && am_root && F_UID(file) != st->st_uid)
548 iflags |= ITEM_REPORT_OWNER;
549 if (preserve_gid && F_GID(file) != GID_NONE
550 && st->st_gid != F_GID(file))
551 iflags |= ITEM_REPORT_GROUP;
553 iflags |= ITEM_IS_NEW;
556 if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1
557 || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) {
558 if (protocol_version >= 29) {
560 write_ndx(sock_f_out, ndx);
561 write_shortint(sock_f_out, iflags);
562 if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
563 write_byte(sock_f_out, fnamecmp_type);
564 if (iflags & ITEM_XNAME_FOLLOWS)
565 write_vstring(sock_f_out, xname, strlen(xname));
566 } else if (ndx >= 0) {
567 enum logcode code = logfile_format_has_i ? FINFO : FCLIENT;
568 log_item(code, file, &stats, iflags, xname);
574 /* Perform our quick-check heuristic for determining if a file is unchanged. */
575 int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
577 if (st->st_size != F_LENGTH(file))
580 /* if always checksum is set then we use the checksum instead
581 of the file time to determine whether to sync */
582 if (always_checksum > 0 && S_ISREG(st->st_mode)) {
583 char sum[MD4_SUM_LENGTH];
584 file_checksum(fn, sum, st->st_size);
585 return memcmp(sum, F_SUM(file), checksum_len) == 0;
594 return cmp_time(st->st_mtime, file->modtime) == 0;
599 * set (initialize) the size entries in the per-file sum_struct
600 * calculating dynamic block and checksum sizes.
602 * This is only called from generate_and_send_sums() but is a separate
603 * function to encapsulate the logic.
605 * The block size is a rounded square root of file length.
607 * The checksum size is determined according to:
608 * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
609 * provided by Donovan Baarda which gives a probability of rsync
610 * algorithm corrupting data and falling back using the whole md4
613 * This might be made one of several selectable heuristics.
615 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
621 blength = block_size;
622 else if (len <= BLOCK_SIZE * BLOCK_SIZE)
623 blength = BLOCK_SIZE;
628 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
629 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
630 blength = MAX_BLOCK_SIZE;
635 if (len < (int64)blength * blength)
638 } while (c >= 8); /* round to multiple of 8 */
639 blength = MAX(blength, BLOCK_SIZE);
643 if (protocol_version < 27) {
644 s2length = csum_length;
645 } else if (csum_length == SUM_LENGTH) {
646 s2length = SUM_LENGTH;
650 int b = BLOCKSUM_BIAS;
651 for (l = len; l >>= 1; b += 2) {}
652 for (c = blength; (c >>= 1) && b; b--) {}
653 /* add a bit, subtract rollsum, round up. */
654 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
655 s2length = MAX(s2length, csum_length);
656 s2length = MIN(s2length, SUM_LENGTH);
660 sum->blength = blength;
661 sum->s2length = s2length;
662 sum->remainder = (int32)(len % blength);
663 sum->count = (int32)(len / blength) + (sum->remainder != 0);
665 if (sum->count && verbose > 2) {
667 "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
668 (double)sum->count, (long)sum->remainder, (long)sum->blength,
669 sum->s2length, (double)sum->flength);
675 * Generate and send a stream of signatures/checksums that describe a buffer
677 * Generate approximately one checksum every block_len bytes.
679 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
682 struct map_struct *mapbuf;
683 struct sum_struct sum;
686 sum_sizes_sqroot(&sum, len);
687 write_sum_head(f_out, &sum);
689 if (append_mode > 0 && f_copy < 0)
693 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
697 for (i = 0; i < sum.count; i++) {
698 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
699 char *map = map_ptr(mapbuf, offset, n1);
700 char sum2[SUM_LENGTH];
707 full_write(f_copy, map, n1);
712 sum1 = get_checksum1(map, n1);
713 get_checksum2(map, n1, sum2);
717 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
718 (double)i, (double)offset - n1, (long)n1,
719 (unsigned long)sum1);
721 write_int(f_out, sum1);
722 write_buf(f_out, sum2, sum.s2length);
730 /* Try to find a filename in the same dir as "fname" with a similar name. */
731 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
733 int fname_len, fname_suf_len;
734 const char *fname_suf, *fname = file->basename;
735 uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
736 int j, lowest_j = -1;
738 fname_len = strlen(fname);
739 fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
741 for (j = 0; j < dirlist->count; j++) {
742 struct file_struct *fp = dirlist->files[j];
743 const char *suf, *name;
747 if (!S_ISREG(fp->mode) || !F_LENGTH(fp)
748 || fp->flags & FLAG_FILE_SENT)
753 if (F_LENGTH(fp) == F_LENGTH(file)
754 && cmp_time(fp->modtime, file->modtime) == 0) {
757 "fuzzy size/modtime match for %s\n",
764 suf = find_filename_suffix(name, len, &suf_len);
766 dist = fuzzy_distance(name, len, fname, fname_len);
767 /* Add some extra weight to how well the suffixes match. */
768 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
771 rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
772 name, (int)(dist>>16), (int)(dist&0xFFFF));
774 if (dist <= lowest_dist) {
783 /* This is only called for regular files. We return -2 if we've finished
784 * handling the file, -1 if no dest-linking occurred, or a non-negative
785 * value if we found an alternate basis file. */
786 static int try_dests_reg(struct file_struct *file, char *fname, int ndx,
787 char *cmpbuf, STRUCT_STAT *stp, int itemizing,
795 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
796 if (link_stat(cmpbuf, stp, 0) < 0 || !S_ISREG(stp->st_mode))
798 switch (match_level) {
804 if (!unchanged_file(cmpbuf, file, stp))
810 if (!unchanged_attrs(file, stp))
812 if (always_checksum > 0 && preserve_times
813 && cmp_time(stp->st_mtime, file->modtime))
820 } while (basis_dir[++j] != NULL);
825 if (j != best_match) {
827 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
828 if (link_stat(cmpbuf, stp, 0) < 0)
832 if (match_level == 3 && !copy_dest) {
833 #ifdef SUPPORT_HARD_LINKS
835 if (!hard_link_one(file, fname, cmpbuf, 1))
837 if (preserve_hard_links && F_IS_HLINKED(file))
838 finish_hard_link(file, fname, stp, itemizing, code, j);
839 if (itemizing && (verbose > 1 || stdout_format_has_i > 1)) {
840 itemize(file, ndx, 1, stp,
841 ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
847 itemize(file, ndx, 0, stp, 0, 0, NULL);
848 if (verbose > 1 && maybe_ATTRS_REPORT)
849 rprintf(FCLIENT, "%s is uptodate\n", fname);
853 if (match_level >= 2) {
854 #ifdef SUPPORT_HARD_LINKS
855 try_a_copy: /* Copy the file locally. */
857 if (copy_file(cmpbuf, fname, file->mode) < 0) {
859 rsyserr(FINFO, errno, "copy_file %s => %s",
860 full_fname(cmpbuf), fname);
865 itemize(file, ndx, 0, stp, ITEM_LOCAL_CHANGE, 0, NULL);
866 set_file_attrs(fname, file, NULL, 0);
867 if (maybe_ATTRS_REPORT
868 && ((!itemizing && verbose && match_level == 2)
869 || (verbose > 1 && match_level == 3))) {
870 code = match_level == 3 ? FCLIENT : FINFO;
871 rprintf(code, "%s%s\n", fname,
872 match_level == 3 ? " is uptodate" : "");
874 #ifdef SUPPORT_HARD_LINKS
875 if (preserve_hard_links && F_IS_HLINKED(file))
876 finish_hard_link(file, fname, stp, itemizing, code, -1);
881 return FNAMECMP_BASIS_DIR_LOW + j;
884 /* This is only called for non-regular files. We return -2 if we've finished
885 * handling the file, or -1 if no dest-linking occurred, or a non-negative
886 * value if we found an alternate basis file. */
887 static int try_dests_non(struct file_struct *file, char *fname, int ndx,
888 char *cmpbuf, STRUCT_STAT *stp, int itemizing,
891 char lnk[MAXPATHLEN];
894 enum nonregtype type;
898 #ifndef SUPPORT_LINKS
899 if (S_ISLNK(file->mode))
902 if (S_ISDIR(file->mode)) {
904 } else if (IS_SPECIAL(file->mode))
906 else if (IS_DEVICE(file->mode))
909 else if (S_ISLNK(file->mode))
914 "internal: try_dests_non() called with invalid mode (%o)\n",
916 exit_cleanup(RERR_UNSUPPORTED);
920 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
921 if (link_stat(cmpbuf, stp, 0) < 0)
925 if (!S_ISDIR(stp->st_mode))
929 if (!IS_SPECIAL(stp->st_mode))
933 if (!IS_DEVICE(stp->st_mode))
938 if (!S_ISLNK(stp->st_mode))
943 if (match_level < 1) {
952 devp = F_RDEV_P(file);
953 if (stp->st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)))
958 if ((len = readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0)
961 if (strcmp(lnk, F_SYMLINK(file)) != 0)
966 if (match_level < 2) {
970 if (unchanged_attrs(file, stp)) {
975 } while (basis_dir[++j] != NULL);
980 if (j != best_match) {
982 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
983 if (link_stat(cmpbuf, stp, 0) < 0)
987 if (match_level == 3) {
988 #ifdef SUPPORT_HARD_LINKS
990 #ifndef CAN_HARDLINK_SYMLINK
991 && !S_ISLNK(file->mode)
993 #ifndef CAN_HARDLINK_SPECIAL
994 && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode)
996 && !S_ISDIR(file->mode)) {
997 if (do_link(cmpbuf, fname) < 0) {
998 rsyserr(FERROR, errno,
999 "failed to hard-link %s with %s",
1003 if (preserve_hard_links && F_IS_HLINKED(file))
1004 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1008 if (itemizing && stdout_format_has_i
1009 && (verbose > 1 || stdout_format_has_i > 1)) {
1010 int chg = compare_dest && type != TYPE_DIR ? 0
1012 + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0);
1013 char *lp = match_level == 3 ? "" : NULL;
1014 itemize(file, ndx, 0, stp, chg + ITEM_MATCHED, 0, lp);
1016 if (verbose > 1 && maybe_ATTRS_REPORT) {
1017 rprintf(FCLIENT, "%s%s is uptodate\n",
1018 fname, type == TYPE_DIR ? "/" : "");
1026 static int phase = 0;
1028 /* Acts on the indicated item in cur_flist whose name is fname. If a dir,
1029 * make sure it exists, and has the right permissions/timestamp info. For
1030 * all other non-regular files (symlinks, etc.) we create them here. For
1031 * regular files that have changed, we try to find a basis file and then
1032 * start sending checksums. The ndx is the file's unique index value.
1034 * When fname is non-null, it must point to a MAXPATHLEN buffer!
1036 * Note that f_out is set to -1 when doing final directory-permission and
1037 * modification-time repair. */
1038 static void recv_generator(char *fname, struct file_struct *file, int ndx,
1039 int itemizing, enum logcode code, int f_out)
1041 static int missing_below = -1, excluded_below = -1;
1042 static const char *parent_dirname = "";
1043 static struct file_list *fuzzy_dirlist = NULL;
1044 static int need_fuzzy_dirlist = 0;
1045 struct file_struct *fuzzy_file = NULL;
1046 int fd = -1, f_copy = -1;
1047 STRUCT_STAT st, real_st, partial_st;
1048 struct file_struct *back_file = NULL;
1049 int statret, real_ret, stat_errno;
1050 char *fnamecmp, *partialptr, *backupptr = NULL;
1051 char fnamecmpbuf[MAXPATHLEN];
1052 uchar fnamecmp_type;
1053 int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0;
1059 rprintf(FINFO, "recv_generator(%s,%d)\n", fname, ndx);
1061 if (server_filter_list.head) {
1062 if (excluded_below >= 0) {
1063 if (F_DEPTH(file) > excluded_below)
1065 excluded_below = -1;
1067 if (check_filter(&server_filter_list, fname,
1068 S_ISDIR(file->mode)) < 0) {
1069 if (S_ISDIR(file->mode))
1070 excluded_below = F_DEPTH(file);
1074 "skipping server-excluded file \"%s\"\n",
1081 if (missing_below >= 0) {
1082 if (F_DEPTH(file) <= missing_below) {
1086 } else if (!dry_run) {
1087 if (S_ISDIR(file->mode))
1088 file->flags |= FLAG_MISSING_DIR;
1093 if (fuzzy_dirlist) {
1094 flist_free(fuzzy_dirlist);
1095 fuzzy_dirlist = NULL;
1097 parent_dirname = "";
1099 stat_errno = ENOENT;
1101 const char *dn = file->dirname ? file->dirname : ".";
1102 if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) {
1103 if (relative_paths && !implied_dirs
1104 && do_stat(dn, &st) < 0
1105 && create_directory_path(fname) < 0) {
1106 rsyserr(FERROR, errno,
1107 "recv_generator: mkdir %s failed",
1110 if (fuzzy_dirlist) {
1111 flist_free(fuzzy_dirlist);
1112 fuzzy_dirlist = NULL;
1115 need_fuzzy_dirlist = 1;
1117 parent_dirname = dn;
1119 if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
1120 strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
1121 fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, 1);
1122 need_fuzzy_dirlist = 0;
1125 statret = link_stat(fname, &st,
1126 keep_dirlinks && S_ISDIR(file->mode));
1130 if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) {
1132 rprintf(FINFO, "not creating new %s \"%s\"\n",
1133 S_ISDIR(file->mode) ? "directory" : "file",
1136 if (S_ISDIR(file->mode)) {
1137 if (missing_below < 0) {
1140 missing_below = F_DEPTH(file);
1142 file->flags |= FLAG_MISSING_DIR;
1147 /* If we're not preserving permissions, change the file-list's
1148 * mode based on the local permissions and some heuristics. */
1149 if (!preserve_perms) {
1150 int exists = statret == 0
1151 && S_ISDIR(st.st_mode) == S_ISDIR(file->mode);
1152 file->mode = dest_mode(file->mode, st.st_mode, exists);
1155 if (S_ISDIR(file->mode)) {
1156 /* The file to be received is a directory, so we need
1157 * to prepare appropriately. If there is already a
1158 * file of that name and it is *not* a directory, then
1159 * we need to delete it. If it doesn't exist, then
1160 * (perhaps recursively) create it. */
1161 if (statret == 0 && !S_ISDIR(st.st_mode)) {
1162 if (delete_item(fname, st.st_mode, "directory", del_opts) != 0)
1166 if (dry_run && statret != 0 && missing_below < 0) {
1167 missing_below = F_DEPTH(file);
1173 if (*fname == '.' && fname[1] == '\0')
1177 if (statret != 0 && basis_dir[0] != NULL) {
1178 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &st,
1186 if (itemizing && f_out != -1) {
1187 itemize(file, ndx, statret, &st,
1188 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
1190 if (real_ret != 0 && do_mkdir(fname,file->mode) < 0 && errno != EEXIST) {
1191 if (!relative_paths || errno != ENOENT
1192 || create_directory_path(fname) < 0
1193 || (do_mkdir(fname, file->mode) < 0 && errno != EEXIST)) {
1194 rsyserr(FERROR, errno,
1195 "recv_generator: mkdir %s failed",
1198 "*** Skipping any contents from this failed directory ***\n");
1199 missing_below = F_DEPTH(file);
1200 file->flags |= FLAG_MISSING_DIR;
1204 if (set_file_attrs(fname, file, real_ret ? NULL : &real_st, 0)
1205 && verbose && code != FNONE && f_out != -1)
1206 rprintf(code, "%s/\n", fname);
1207 if (real_ret != 0 && one_file_system)
1208 real_st.st_dev = filesystem_dev;
1210 if (one_file_system) {
1211 uint32 *devp = F_DIRDEV_P(file);
1212 DEV_MAJOR(devp) = major(real_st.st_dev);
1213 DEV_MINOR(devp) = minor(real_st.st_dev);
1216 else if (delete_during && f_out != -1 && !phase && dry_run < 2
1217 && (file->flags & FLAG_XFER_DIR))
1218 delete_in_dir(cur_flist, fname, file, &real_st.st_dev);
1222 #ifdef SUPPORT_HARD_LINKS
1223 if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
1224 && hard_link_check(file, ndx, fname, statret, &st, itemizing, code))
1228 if (preserve_links && S_ISLNK(file->mode)) {
1229 #ifdef SUPPORT_LINKS
1230 const char *sl = F_SYMLINK(file);
1231 if (safe_symlinks && unsafe_symlink(sl, fname)) {
1234 fname = f_name(file, NULL);
1236 "ignoring unsafe symlink %s -> \"%s\"\n",
1237 full_fname(fname), sl);
1242 char lnk[MAXPATHLEN];
1245 if (!S_ISLNK(st.st_mode))
1247 else if ((len = readlink(fname, lnk, MAXPATHLEN-1)) > 0
1248 && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') {
1249 /* The link is pointing to the right place. */
1251 itemize(file, ndx, 0, &st, 0, 0, NULL);
1252 set_file_attrs(fname, file, &st, maybe_ATTRS_REPORT);
1253 #ifdef SUPPORT_HARD_LINKS
1254 if (preserve_hard_links && F_IS_HLINKED(file))
1255 finish_hard_link(file, fname, &st, itemizing, code, -1);
1257 if (remove_source_files == 1)
1258 goto return_with_success;
1261 /* Not the right symlink (or not a symlink), so
1263 if (delete_item(fname, st.st_mode, "symlink", del_opts) != 0)
1265 } else if (basis_dir[0] != NULL) {
1266 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &st,
1269 #ifndef CAN_HARDLINK_SYMLINK
1271 /* Resort to --copy-dest behavior. */
1281 #ifdef SUPPORT_HARD_LINKS
1282 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1285 if (do_symlink(sl, fname) != 0) {
1286 rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
1287 full_fname(fname), sl);
1289 set_file_attrs(fname, file, NULL, 0);
1291 itemize(file, ndx, statret, &st,
1292 ITEM_LOCAL_CHANGE, 0, NULL);
1294 if (code != FNONE && verbose)
1295 rprintf(code, "%s -> %s\n", fname, sl);
1296 #ifdef SUPPORT_HARD_LINKS
1297 if (preserve_hard_links && F_IS_HLINKED(file))
1298 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1300 /* This does not check remove_source_files == 1
1301 * because this is one of the items that the old
1302 * --remove-sent-files option would remove. */
1303 if (remove_source_files)
1304 goto return_with_success;
1310 if ((am_root && preserve_devices && IS_DEVICE(file->mode))
1311 || (preserve_specials && IS_SPECIAL(file->mode))) {
1312 uint32 *devp = F_RDEV_P(file);
1313 dev_t rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1316 if (IS_DEVICE(file->mode)) {
1317 if (!IS_DEVICE(st.st_mode))
1321 if (!IS_SPECIAL(st.st_mode))
1326 && BITS_EQUAL(st.st_mode, file->mode, _S_IFMT)
1327 && st.st_rdev == rdev) {
1328 /* The device or special file is identical. */
1330 itemize(file, ndx, 0, &st, 0, 0, NULL);
1331 set_file_attrs(fname, file, &st, maybe_ATTRS_REPORT);
1332 #ifdef SUPPORT_HARD_LINKS
1333 if (preserve_hard_links && F_IS_HLINKED(file))
1334 finish_hard_link(file, fname, &st, itemizing, code, -1);
1336 if (remove_source_files == 1)
1337 goto return_with_success;
1340 if (delete_item(fname, st.st_mode, t, del_opts) != 0)
1342 } else if (basis_dir[0] != NULL) {
1343 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &st,
1346 #ifndef CAN_HARDLINK_SPECIAL
1348 /* Resort to --copy-dest behavior. */
1358 #ifdef SUPPORT_HARD_LINKS
1359 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1363 rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n",
1364 fname, (int)file->mode,
1365 (long)major(rdev), (long)minor(rdev));
1367 if (do_mknod(fname, file->mode, rdev) < 0) {
1368 rsyserr(FERROR, errno, "mknod %s failed",
1371 set_file_attrs(fname, file, NULL, 0);
1373 itemize(file, ndx, statret, &st,
1374 ITEM_LOCAL_CHANGE, 0, NULL);
1376 if (code != FNONE && verbose)
1377 rprintf(code, "%s\n", fname);
1378 #ifdef SUPPORT_HARD_LINKS
1379 if (preserve_hard_links && F_IS_HLINKED(file))
1380 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1382 if (remove_source_files == 1)
1383 goto return_with_success;
1388 if (!S_ISREG(file->mode)) {
1390 fname = f_name(file, NULL);
1391 rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname);
1395 if (max_size > 0 && F_LENGTH(file) > max_size) {
1398 fname = f_name(file, NULL);
1399 rprintf(FINFO, "%s is over max-size\n", fname);
1403 if (min_size > 0 && F_LENGTH(file) < min_size) {
1406 fname = f_name(file, NULL);
1407 rprintf(FINFO, "%s is under min-size\n", fname);
1412 if (ignore_existing > 0 && statret == 0) {
1414 rprintf(FINFO, "%s exists\n", fname);
1418 if (update_only > 0 && statret == 0
1419 && cmp_time(st.st_mtime, file->modtime) > 0) {
1421 rprintf(FINFO, "%s is newer\n", fname);
1426 fnamecmp_type = FNAMECMP_FNAME;
1428 if (statret == 0 && !S_ISREG(st.st_mode)) {
1429 if (delete_item(fname, st.st_mode, "regular file", del_opts) != 0)
1432 stat_errno = ENOENT;
1435 if (statret != 0 && basis_dir[0] != NULL) {
1436 int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &st,
1439 if (remove_source_files == 1)
1440 goto return_with_success;
1444 fnamecmp = fnamecmpbuf;
1453 if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
1454 && link_stat(partialptr, &partial_st, 0) == 0
1455 && S_ISREG(partial_st.st_mode)) {
1457 goto prepare_to_open;
1461 if (statret != 0 && fuzzy_dirlist && dry_run <= 1) {
1462 int j = find_fuzzy(file, fuzzy_dirlist);
1464 fuzzy_file = fuzzy_dirlist->files[j];
1465 f_name(fuzzy_file, fnamecmpbuf);
1467 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
1468 fname, fnamecmpbuf);
1470 st.st_size = F_LENGTH(fuzzy_file);
1472 fnamecmp = fnamecmpbuf;
1473 fnamecmp_type = FNAMECMP_FUZZY;
1478 #ifdef SUPPORT_HARD_LINKS
1479 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1482 if (stat_errno == ENOENT)
1484 rsyserr(FERROR, stat_errno, "recv_generator: failed to stat %s",
1489 if (append_mode > 0 && st.st_size > F_LENGTH(file))
1492 if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1494 else if (fnamecmp_type == FNAMECMP_FUZZY)
1496 else if (unchanged_file(fnamecmp, file, &st)) {
1498 do_unlink(partialptr);
1499 handle_partial_dir(partialptr, PDIR_DELETE);
1502 itemize(file, ndx, statret, &st, 0, 0, NULL);
1503 set_file_attrs(fname, file, &st, maybe_ATTRS_REPORT);
1504 #ifdef SUPPORT_HARD_LINKS
1505 if (preserve_hard_links && F_IS_HLINKED(file))
1506 finish_hard_link(file, fname, &st, itemizing, code, -1);
1508 if (remove_source_files != 1)
1510 return_with_success:
1512 send_msg_int(MSG_SUCCESS, ndx);
1519 fnamecmp = partialptr;
1520 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1524 if (!do_xfers || read_batch || whole_file)
1527 if (fuzzy_dirlist) {
1528 int j = flist_find(fuzzy_dirlist, file);
1529 if (j >= 0) /* don't use changing file as future fuzzy basis */
1530 fuzzy_dirlist->files[j]->flags |= FLAG_FILE_SENT;
1534 fd = do_open(fnamecmp, O_RDONLY, 0);
1537 rsyserr(FERROR, errno, "failed to open %s, continuing",
1538 full_fname(fnamecmp));
1540 /* pretend the file didn't exist */
1541 #ifdef SUPPORT_HARD_LINKS
1542 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1545 statret = real_ret = -1;
1549 if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1550 if (!(backupptr = get_backup_name(fname))) {
1554 if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) {
1556 goto pretend_missing;
1558 if (robust_unlink(backupptr) && errno != ENOENT) {
1559 rsyserr(FERROR, errno, "unlink %s",
1560 full_fname(backupptr));
1561 unmake_file(back_file);
1565 if ((f_copy = do_open(backupptr,
1566 O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1567 rsyserr(FERROR, errno, "open %s",
1568 full_fname(backupptr));
1569 unmake_file(back_file);
1573 fnamecmp_type = FNAMECMP_BACKUP;
1577 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1578 fnamecmp, (double)st.st_size);
1582 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1585 if (remove_source_files && !delay_updates && !phase)
1586 increment_active_files(ndx, itemizing, code);
1587 if (inc_recurse && !dry_run)
1588 cur_flist->in_progress++;
1589 #ifdef SUPPORT_HARD_LINKS
1590 if (preserve_hard_links && F_IS_HLINKED(file))
1591 file->flags |= FLAG_FILE_SENT;
1593 write_ndx(f_out, ndx);
1595 int iflags = ITEM_TRANSFER;
1596 if (always_checksum > 0)
1597 iflags |= ITEM_REPORT_CHECKSUM;
1598 if (fnamecmp_type != FNAMECMP_FNAME)
1599 iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1600 if (fnamecmp_type == FNAMECMP_FUZZY)
1601 iflags |= ITEM_XNAME_FOLLOWS;
1602 itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type,
1603 fuzzy_file ? fuzzy_file->basename : NULL);
1607 #ifdef SUPPORT_HARD_LINKS
1608 if (preserve_hard_links && F_IS_HLINKED(file))
1609 finish_hard_link(file, fname, &st, itemizing, code, -1);
1616 if (statret != 0 || whole_file) {
1617 write_sum_head(f_out, NULL);
1621 generate_and_send_sums(fd, st.st_size, f_out, f_copy);
1625 set_file_attrs(backupptr, back_file, NULL, 0);
1627 rprintf(FINFO, "backed up %s to %s\n",
1630 unmake_file(back_file);
1636 static void touch_up_dirs(struct file_list *flist, int ndx)
1638 struct file_struct *file;
1640 int i, j, start, end;
1644 end = flist->count - 1;
1648 /* Fix any directory permissions that were modified during the
1649 * transfer and/or re-set any tweaked modified-time values. */
1650 for (i = start, j = 0; i <= end; i++) {
1651 file = flist->files[i];
1652 if (!F_IS_ACTIVE(file) || !S_ISDIR(file->mode)
1653 || file->flags & FLAG_MISSING_DIR)
1655 if (!need_retouch_dir_times && file->mode & S_IWUSR)
1657 fname = f_name(file, NULL);
1658 if (!(file->mode & S_IWUSR))
1659 do_chmod(fname, file->mode);
1660 if (need_retouch_dir_times)
1661 set_modtime(fname, file->modtime, file->mode);
1662 if (allowed_lull && !(++j % lull_mod))
1663 maybe_send_keepalive();
1664 else if (!(j % 200))
1665 maybe_flush_socket();
1669 void check_for_finished_files(int itemizing, enum logcode code, int check_redo)
1671 struct file_struct *file;
1672 struct file_list *flist;
1673 char fbuf[MAXPATHLEN];
1676 #ifdef SUPPORT_HARD_LINKS
1677 while (preserve_hard_links && (ndx = get_hlink_num()) != -1) {
1678 flist = flist_for_ndx(ndx);
1679 assert(flist != NULL);
1680 file = flist->files[ndx];
1681 assert(file->flags & FLAG_HLINKED);
1682 finish_hard_link(file, f_name(file, fbuf), NULL, itemizing, code, -1);
1686 while (check_redo && (ndx = get_redo_num()) != -1) {
1687 csum_length = SUM_LENGTH;
1688 max_size = -max_size;
1689 min_size = -min_size;
1690 ignore_existing = -ignore_existing;
1691 ignore_non_existing = -ignore_non_existing;
1692 update_only = -update_only;
1693 always_checksum = -always_checksum;
1694 size_only = -size_only;
1695 append_mode = -append_mode;
1696 make_backups = -make_backups; /* avoid dup backup w/inplace */
1700 cur_flist = flist_for_ndx(ndx);
1702 file = cur_flist->files[ndx - cur_flist->ndx_start];
1704 strlcpy(fbuf, solo_file, sizeof fbuf);
1707 recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out);
1708 cur_flist->to_redo--;
1712 csum_length = SHORT_SUM_LENGTH;
1713 max_size = -max_size;
1714 min_size = -min_size;
1715 ignore_existing = -ignore_existing;
1716 ignore_non_existing = -ignore_non_existing;
1717 update_only = -update_only;
1718 always_checksum = -always_checksum;
1719 size_only = -size_only;
1720 append_mode = -append_mode;
1721 make_backups = -make_backups;
1725 while (cur_flist != first_flist) { /* only possible with inc_recurse */
1726 if (first_flist->in_progress || first_flist->to_redo)
1730 write_ndx(sock_f_out, NDX_DONE);
1732 if (delete_during == 2 || !dir_tweaking) {
1733 /* Skip directory touch-up. */
1734 } else if (first_flist->ndx_start != 0)
1735 touch_up_dirs(dir_flist, first_flist->parent_ndx);
1736 else if (relative_paths && implied_dirs)
1737 touch_up_dirs(first_flist, -1);
1739 flist_free(first_flist); /* updates first_flist */
1743 void generate_files(int f_out, const char *local_name)
1746 char fbuf[MAXPATHLEN];
1749 int need_retouch_dir_perms = 0;
1750 int save_do_progress = do_progress;
1752 if (protocol_version >= 29) {
1754 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1755 code = logfile_format_has_i ? FNONE : FLOG;
1756 } else if (am_daemon) {
1757 itemizing = logfile_format_has_i && do_xfers;
1758 maybe_ATTRS_REPORT = ATTRS_REPORT;
1759 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1760 } else if (!am_server) {
1761 itemizing = stdout_format_has_i;
1762 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1763 code = itemizing ? FNONE : FINFO;
1766 maybe_ATTRS_REPORT = ATTRS_REPORT;
1769 solo_file = local_name;
1770 dir_tweaking = !(list_only || solo_file || dry_run);
1771 need_retouch_dir_times = preserve_times && !omit_dir_times;
1772 lull_mod = allowed_lull * 5;
1775 rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
1777 if (delete_before && !solo_file && cur_flist->count > 0)
1778 do_delete_pass(cur_flist);
1779 if (delete_during == 2) {
1780 deldelay_size = BIGPATHBUFLEN * 4;
1781 deldelay_buf = new_array(char, deldelay_size);
1783 out_of_memory("delete-delay");
1787 if (append_mode > 0 || whole_file < 0)
1790 rprintf(FINFO, "delta-transmission %s\n",
1792 ? "disabled for local transfer or --whole-file"
1796 /* Since we often fill up the outgoing socket and then just sit around
1797 * waiting for the other 2 processes to do their thing, we don't want
1798 * to exit on a timeout. If the data stops flowing, the receiver will
1799 * notice that and let us know via the redo pipe (or its closing). */
1803 if (inc_recurse && delete_during && cur_flist->ndx_start) {
1804 struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx];
1805 if (BITS_SETnUNSET(fp->flags, FLAG_XFER_DIR, FLAG_MISSING_DIR)) {
1807 if (one_file_system) {
1808 uint32 *devp = F_DIRDEV_P(fp);
1809 dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1811 dirdev = MAKEDEV(0, 0);
1812 delete_in_dir(cur_flist, f_name(fp, fbuf), fp, &dirdev);
1815 for (i = cur_flist->low; i <= cur_flist->high; i++) {
1816 struct file_struct *file = cur_flist->files[i];
1818 if (!F_IS_ACTIVE(file))
1822 strlcpy(fbuf, solo_file, sizeof fbuf);
1825 recv_generator(fbuf, file, i + cur_flist->ndx_start,
1826 itemizing, code, f_out);
1828 /* We need to ensure that any dirs we create have
1829 * writeable permissions during the time we are putting
1830 * files within them. This is then fixed after the
1831 * transfer is done. */
1833 if (!am_root && S_ISDIR(file->mode)
1834 && !(file->mode & S_IWUSR) && dir_tweaking) {
1835 mode_t mode = file->mode | S_IWUSR;
1836 const char *fname = solo_file ? solo_file : fbuf;
1837 if (do_chmod(fname, mode) < 0) {
1838 rsyserr(FERROR, errno,
1839 "failed to modify permissions on %s",
1842 need_retouch_dir_perms = 1;
1846 check_for_finished_files(itemizing, code, 0);
1848 if (allowed_lull && !(i % lull_mod))
1849 maybe_send_keepalive();
1850 else if (!(i % 200))
1851 maybe_flush_socket();
1855 write_ndx(f_out, NDX_DONE);
1859 while (!cur_flist->next && !flist_eof) {
1860 check_for_finished_files(itemizing, code, 1);
1861 wait_for_receiver();
1863 } while ((cur_flist = cur_flist->next) != NULL);
1866 delete_in_dir(NULL, NULL, NULL, &dev_zero);
1869 rprintf(FINFO, "generate_files phase=%d\n", phase);
1871 while (!msgdone_cnt) {
1872 check_for_finished_files(itemizing, code, 1);
1873 wait_for_receiver();
1878 rprintf(FINFO, "generate_files phase=%d\n", phase);
1880 write_ndx(f_out, NDX_DONE);
1881 /* Reduce round-trip lag-time for a useless delay-updates phase. */
1882 if (protocol_version >= 29 && !delay_updates)
1883 write_ndx(f_out, NDX_DONE);
1885 /* Read MSG_DONE for the redo phase (and any prior messages). */
1886 while (msgdone_cnt <= 1) {
1887 check_for_finished_files(itemizing, code, 0);
1888 wait_for_receiver();
1891 if (protocol_version >= 29) {
1894 rprintf(FINFO, "generate_files phase=%d\n", phase);
1896 write_ndx(f_out, NDX_DONE);
1897 /* Read MSG_DONE for delay-updates phase & prior messages. */
1898 while (msgdone_cnt == 2)
1899 wait_for_receiver();
1902 do_progress = save_do_progress;
1903 if (delete_during == 2)
1904 do_delayed_deletions(fbuf);
1905 if (delete_after && !solo_file && file_total > 0)
1906 do_delete_pass(cur_flist);
1908 if ((need_retouch_dir_perms || need_retouch_dir_times)
1909 && dir_tweaking && (!inc_recurse || delete_during == 2))
1910 touch_up_dirs(inc_recurse ? dir_flist : cur_flist, -1);
1912 if (max_delete >= 0 && deletion_count > max_delete) {
1914 "Deletions stopped due to --max-delete limit (%d skipped)\n",
1915 deletion_count - max_delete);
1916 io_error |= IOERR_DEL_LIMIT;
1920 rprintf(FINFO, "generate_files finished\n");