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) 2003-2007 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 3 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, visit the http://fsf.org website.
28 extern int stdout_format_has_i;
29 extern int logfile_format_has_i;
33 extern int inc_recurse;
34 extern int do_progress;
35 extern int relative_paths;
36 extern int implied_dirs;
37 extern int keep_dirlinks;
38 extern int preserve_acls;
39 extern int preserve_xattrs;
40 extern int preserve_links;
41 extern int preserve_devices;
42 extern int preserve_specials;
43 extern int preserve_hard_links;
44 extern int preserve_perms;
45 extern int preserve_times;
46 extern int omit_dir_times;
49 extern int delete_mode;
50 extern int delete_before;
51 extern int delete_during;
52 extern int delete_after;
53 extern int msgdone_cnt;
54 extern int ignore_errors;
55 extern int remove_source_files;
56 extern int delay_updates;
57 extern int update_only;
58 extern int ignore_existing;
59 extern int ignore_non_existing;
61 extern int append_mode;
62 extern int make_backups;
63 extern int csum_length;
64 extern int ignore_times;
66 extern OFF_T max_size;
67 extern OFF_T min_size;
70 extern int allowed_lull;
71 extern int sock_f_out;
72 extern int ignore_timeout;
73 extern int protocol_version;
74 extern int file_total;
75 extern int fuzzy_basis;
76 extern int always_checksum;
77 extern int checksum_len;
78 extern char *partial_dir;
79 extern char *basis_dir[];
80 extern int compare_dest;
83 extern int whole_file;
85 extern int new_root_dir;
86 extern int read_batch;
87 extern int safe_symlinks;
88 extern long block_size; /* "long" because popt can't set an int32. */
89 extern int max_delete;
90 extern int force_delete;
91 extern int one_file_system;
92 extern struct stats stats;
93 extern dev_t filesystem_dev;
94 extern mode_t orig_umask;
95 extern char *backup_dir;
96 extern char *backup_suffix;
97 extern int backup_suffix_len;
98 extern struct file_list *cur_flist, *first_flist, *dir_flist;
99 extern struct filter_list_struct server_filter_list;
104 int ignore_perishable = 0;
105 int non_perishable_cnt = 0;
106 int maybe_ATTRS_REPORT = 0;
108 static dev_t dev_zero;
109 static int deletion_count = 0; /* used to implement --max-delete */
110 static int deldelay_size = 0, deldelay_cnt = 0;
111 static char *deldelay_buf = NULL;
112 static int deldelay_fd = -1;
114 static int dir_tweaking;
115 static int need_retouch_dir_times;
116 static int need_retouch_dir_perms;
117 static const char *solo_file = NULL;
119 /* For calling delete_item() and delete_dir_contents(). */
120 #define DEL_RECURSE (1<<1) /* recurse */
121 #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
124 TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK
128 DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
131 /* Forward declaration for delete_item(). */
132 static enum delret delete_dir_contents(char *fname, int flags);
135 static int is_backup_file(char *fn)
137 int k = strlen(fn) - backup_suffix_len;
138 return k > 0 && strcmp(fn+k, backup_suffix) == 0;
141 /* Delete a file or directory. If DEL_RECURSE is set in the flags, this will
142 * delete recursively.
144 * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
145 * a directory! (The buffer is used for recursion, but returned unchanged.)
147 static enum delret delete_item(char *fbuf, int mode, char *replace, int flags)
154 rprintf(FINFO, "delete_item(%s) mode=%o flags=%d\n",
158 if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
159 ignore_perishable = 1;
160 /* If DEL_RECURSE is not set, this just reports emptiness. */
161 ret = delete_dir_contents(fbuf, flags);
162 ignore_perishable = 0;
163 if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
165 /* OK: try to delete the directory. */
168 if (!replace && max_delete >= 0 && ++deletion_count > max_delete)
173 ok = do_rmdir(fbuf) == 0;
174 } else if (make_backups > 0 && (backup_dir || !is_backup_file(fbuf))) {
175 what = "make_backup";
176 ok = make_backup(fbuf);
179 ok = robust_unlink(fbuf) == 0;
184 log_delete(fbuf, mode);
187 if (S_ISDIR(mode) && errno == ENOTEMPTY) {
188 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
191 } else if (errno != ENOENT) {
192 rsyserr(FERROR, errno, "delete_file: %s(%s) failed",
202 if (replace && ret != DR_SUCCESS) {
203 rprintf(FERROR, "could not make way for new %s: %s\n",
209 /* The directory is about to be deleted: if DEL_RECURSE is given, delete all
210 * its contents, otherwise just checks for content. Returns DR_SUCCESS or
211 * DR_NOT_EMPTY. Note that fname must point to a MAXPATHLEN buffer! (The
212 * buffer is used for recursion, but returned unchanged.)
214 static enum delret delete_dir_contents(char *fname, int flags)
216 struct file_list *dirlist;
224 rprintf(FINFO, "delete_dir_contents(%s) flags=%d\n",
228 dlen = strlen(fname);
229 save_filters = push_local_filters(fname, dlen);
231 non_perishable_cnt = 0;
232 dirlist = get_dirlist(fname, dlen, 0);
233 ret = non_perishable_cnt ? DR_NOT_EMPTY : DR_SUCCESS;
238 if (!(flags & DEL_RECURSE)) {
244 if (dlen != 1 || *fname != '/')
246 remainder = MAXPATHLEN - (p - fname);
248 /* We do our own recursion, so make delete_item() non-recursive. */
249 flags = (flags & ~DEL_RECURSE) | DEL_DIR_IS_EMPTY;
251 for (j = dirlist->used; j--; ) {
252 struct file_struct *fp = dirlist->files[j];
254 if (fp->flags & FLAG_MOUNT_DIR) {
257 "mount point, %s, pins parent directory\n",
264 strlcpy(p, fp->basename, remainder);
265 /* Save stack by recursing to ourself directly. */
266 if (S_ISDIR(fp->mode)
267 && delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
269 if (delete_item(fname, fp->mode, NULL, flags) != DR_SUCCESS)
277 pop_local_filters(save_filters);
279 if (ret == DR_NOT_EMPTY) {
280 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
286 static int start_delete_delay_temp(void)
288 char fnametmp[MAXPATHLEN];
289 int save_dry_run = dry_run;
292 if (!get_tmpname(fnametmp, "deldelay")
293 || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) {
294 rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n",
295 inc_recurse ? "" : " -- switching to --delete-after");
297 delete_after = !inc_recurse;
298 dry_run = save_dry_run;
302 dry_run = save_dry_run;
306 static int flush_delete_delay(void)
308 if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) {
309 rsyserr(FERROR, errno, "flush of delete-delay buffer");
319 static int remember_delete(struct file_struct *file, const char *fname)
324 len = snprintf(deldelay_buf + deldelay_cnt,
325 deldelay_size - deldelay_cnt,
326 "%x %s%c", (int)file->mode, fname, '\0');
327 if ((deldelay_cnt += len) <= deldelay_size)
329 if (deldelay_fd < 0 && !start_delete_delay_temp())
332 if (!flush_delete_delay())
339 static int read_delay_line(char *buf)
341 static int read_pos = 0;
343 char *bp, *past_space;
346 for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {}
347 if (j < deldelay_cnt)
349 if (deldelay_fd < 0) {
354 deldelay_cnt -= read_pos;
355 if (deldelay_cnt == deldelay_size)
357 if (deldelay_cnt && read_pos) {
358 memmove(deldelay_buf, deldelay_buf + read_pos,
361 len = read(deldelay_fd, deldelay_buf + deldelay_cnt,
362 deldelay_size - deldelay_cnt);
366 "ERROR: unexpected EOF in delete-delay file.\n");
371 rsyserr(FERROR, errno,
372 "reading delete-delay file");
379 bp = deldelay_buf + read_pos;
381 if (sscanf(bp, "%x ", &mode) != 1) {
383 rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n");
386 past_space = strchr(bp, ' ') + 1;
387 len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */
390 if (len > MAXPATHLEN) {
391 rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n");
395 /* The caller needs the name in a MAXPATHLEN buffer, so we copy it
396 * instead of returning a pointer to our buffer. */
397 memcpy(buf, past_space, len);
402 static void do_delayed_deletions(char *delbuf)
406 if (deldelay_fd >= 0) {
407 if (deldelay_cnt && !flush_delete_delay())
409 lseek(deldelay_fd, 0, 0);
411 while ((mode = read_delay_line(delbuf)) >= 0)
412 delete_item(delbuf, mode, NULL, DEL_RECURSE);
413 if (deldelay_fd >= 0)
417 /* This function is used to implement per-directory deletion, and is used by
418 * all the --delete-WHEN options. Note that the fbuf pointer must point to a
419 * MAXPATHLEN buffer with the name of the directory in it (the functions we
420 * call will append names onto the end, but the old dir value will be restored
422 static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
424 static int already_warned = 0;
425 struct file_list *dirlist;
426 char delbuf[MAXPATHLEN];
430 change_local_filter_dir(NULL, 0, 0);
435 rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
438 maybe_send_keepalive();
440 if (io_error && !ignore_errors) {
444 "IO error encountered -- skipping file deletion\n");
450 change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
452 if (one_file_system) {
453 if (file->flags & FLAG_TOP_DIR)
454 filesystem_dev = *fs_dev;
455 else if (filesystem_dev != *fs_dev)
459 dirlist = get_dirlist(fbuf, dlen, 0);
461 /* If an item in dirlist is not found in flist, delete it
462 * from the filesystem. */
463 for (i = dirlist->used; i--; ) {
464 struct file_struct *fp = dirlist->files[i];
465 if (!F_IS_ACTIVE(fp))
467 if (fp->flags & FLAG_MOUNT_DIR) {
469 rprintf(FINFO, "cannot delete mount point: %s\n",
473 if (flist_find(cur_flist, fp) < 0) {
475 if (delete_during == 2) {
476 if (!remember_delete(fp, delbuf))
479 delete_item(delbuf, fp->mode, NULL, DEL_RECURSE);
486 /* This deletes any files on the receiving side that are not present on the
487 * sending side. This is used by --delete-before and --delete-after. */
488 static void do_delete_pass(void)
490 char fbuf[MAXPATHLEN];
494 /* dry_run is incremented when the destination doesn't exist yet. */
495 if (dry_run > 1 || list_only)
498 for (j = 0; j < cur_flist->used; j++) {
499 struct file_struct *file = cur_flist->sorted[j];
501 if (!(file->flags & FLAG_XFER_DIR))
505 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
506 rprintf(FINFO, "deleting in %s\n", fbuf);
508 if (link_stat(fbuf, &st, keep_dirlinks) < 0
509 || !S_ISDIR(st.st_mode))
512 delete_in_dir(fbuf, file, &st.st_dev);
514 delete_in_dir(NULL, NULL, &dev_zero);
516 if (do_progress && !am_server)
517 rprintf(FINFO, " \r");
520 int unchanged_attrs(const char *fname, struct file_struct *file, statx *sxp)
522 if (preserve_perms && !BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
525 if (am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file))
528 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) && sxp->st.st_gid != (gid_t)F_GROUP(file))
532 if (preserve_acls && !S_ISLNK(file->mode)) {
533 if (!ACL_READY(*sxp))
535 if (set_acl(NULL, file, sxp) == 0)
539 #ifdef SUPPORT_XATTRS
540 if (preserve_xattrs) {
541 if (!XATTR_READY(*sxp))
542 get_xattr(fname, sxp);
543 if (xattr_diff(file, sxp, 0))
551 void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret,
552 statx *sxp, int32 iflags, uchar fnamecmp_type,
555 if (statret >= 0) { /* A from-dest-dir statret can == 1! */
556 int keep_time = !preserve_times ? 0
557 : S_ISDIR(file->mode) ? !omit_dir_times
558 : !S_ISLNK(file->mode);
560 if (S_ISREG(file->mode) && F_LENGTH(file) != sxp->st.st_size)
561 iflags |= ITEM_REPORT_SIZE;
562 if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time
563 && !(iflags & ITEM_MATCHED)
564 && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
565 || (keep_time && cmp_time(file->modtime, sxp->st.st_mtime) != 0))
566 iflags |= ITEM_REPORT_TIME;
567 if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
568 iflags |= ITEM_REPORT_PERMS;
569 if (uid_ndx && am_root && (uid_t)F_OWNER(file) != sxp->st.st_uid)
570 iflags |= ITEM_REPORT_OWNER;
571 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
572 && sxp->st.st_gid != (gid_t)F_GROUP(file))
573 iflags |= ITEM_REPORT_GROUP;
575 if (preserve_acls && !S_ISLNK(file->mode)) {
576 if (!ACL_READY(*sxp))
577 get_acl(fnamecmp, sxp);
578 if (set_acl(NULL, file, sxp) == 0)
579 iflags |= ITEM_REPORT_ACL;
582 #ifdef SUPPORT_XATTRS
583 if (preserve_xattrs) {
584 if (!XATTR_READY(*sxp))
585 get_xattr(fnamecmp, sxp);
586 if (xattr_diff(file, sxp, 1))
587 iflags |= ITEM_REPORT_XATTR;
591 #ifdef SUPPORT_XATTRS
592 if (preserve_xattrs && xattr_diff(file, NULL, 1))
593 iflags |= ITEM_REPORT_XATTR;
595 iflags |= ITEM_IS_NEW;
599 if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || verbose > 1
600 || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) {
601 if (protocol_version >= 29) {
603 write_ndx(sock_f_out, ndx);
604 write_shortint(sock_f_out, iflags);
605 if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
606 write_byte(sock_f_out, fnamecmp_type);
607 if (iflags & ITEM_XNAME_FOLLOWS)
608 write_vstring(sock_f_out, xname, strlen(xname));
609 #ifdef SUPPORT_XATTRS
610 if (iflags & ITEM_REPORT_XATTR && !dry_run)
611 send_xattr_request(NULL, file, sock_f_out);
613 } else if (ndx >= 0) {
614 enum logcode code = logfile_format_has_i ? FINFO : FCLIENT;
615 log_item(code, file, &stats, iflags, xname);
621 /* Perform our quick-check heuristic for determining if a file is unchanged. */
622 int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
624 if (st->st_size != F_LENGTH(file))
627 /* if always checksum is set then we use the checksum instead
628 of the file time to determine whether to sync */
629 if (always_checksum > 0 && S_ISREG(st->st_mode)) {
630 char sum[MAX_DIGEST_LEN];
631 file_checksum(fn, sum, st->st_size);
632 return memcmp(sum, F_SUM(file), checksum_len) == 0;
641 return cmp_time(st->st_mtime, file->modtime) == 0;
646 * set (initialize) the size entries in the per-file sum_struct
647 * calculating dynamic block and checksum sizes.
649 * This is only called from generate_and_send_sums() but is a separate
650 * function to encapsulate the logic.
652 * The block size is a rounded square root of file length.
654 * The checksum size is determined according to:
655 * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
656 * provided by Donovan Baarda which gives a probability of rsync
657 * algorithm corrupting data and falling back using the whole md4
660 * This might be made one of several selectable heuristics.
662 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
668 blength = block_size;
669 else if (len <= BLOCK_SIZE * BLOCK_SIZE)
670 blength = BLOCK_SIZE;
675 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
676 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
677 blength = MAX_BLOCK_SIZE;
682 if (len < (int64)blength * blength)
685 } while (c >= 8); /* round to multiple of 8 */
686 blength = MAX(blength, BLOCK_SIZE);
690 if (protocol_version < 27) {
691 s2length = csum_length;
692 } else if (csum_length == SUM_LENGTH) {
693 s2length = SUM_LENGTH;
697 int b = BLOCKSUM_BIAS;
698 for (l = len; l >>= 1; b += 2) {}
699 for (c = blength; (c >>= 1) && b; b--) {}
700 /* add a bit, subtract rollsum, round up. */
701 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
702 s2length = MAX(s2length, csum_length);
703 s2length = MIN(s2length, SUM_LENGTH);
707 sum->blength = blength;
708 sum->s2length = s2length;
709 sum->remainder = (int32)(len % blength);
710 sum->count = (int32)(len / blength) + (sum->remainder != 0);
712 if (sum->count && verbose > 2) {
714 "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
715 (double)sum->count, (long)sum->remainder, (long)sum->blength,
716 sum->s2length, (double)sum->flength);
722 * Generate and send a stream of signatures/checksums that describe a buffer
724 * Generate approximately one checksum every block_len bytes.
726 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
729 struct map_struct *mapbuf;
730 struct sum_struct sum;
733 sum_sizes_sqroot(&sum, len);
734 write_sum_head(f_out, &sum);
736 if (append_mode > 0 && f_copy < 0)
740 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
744 for (i = 0; i < sum.count; i++) {
745 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
746 char *map = map_ptr(mapbuf, offset, n1);
747 char sum2[SUM_LENGTH];
754 full_write(f_copy, map, n1);
759 sum1 = get_checksum1(map, n1);
760 get_checksum2(map, n1, sum2);
764 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
765 (double)i, (double)offset - n1, (long)n1,
766 (unsigned long)sum1);
768 write_int(f_out, sum1);
769 write_buf(f_out, sum2, sum.s2length);
777 /* Try to find a filename in the same dir as "fname" with a similar name. */
778 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
780 int fname_len, fname_suf_len;
781 const char *fname_suf, *fname = file->basename;
782 uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
783 int j, lowest_j = -1;
785 fname_len = strlen(fname);
786 fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
788 for (j = 0; j < dirlist->used; j++) {
789 struct file_struct *fp = dirlist->files[j];
790 const char *suf, *name;
794 if (!S_ISREG(fp->mode) || !F_LENGTH(fp)
795 || fp->flags & FLAG_FILE_SENT)
800 if (F_LENGTH(fp) == F_LENGTH(file)
801 && cmp_time(fp->modtime, file->modtime) == 0) {
804 "fuzzy size/modtime match for %s\n",
811 suf = find_filename_suffix(name, len, &suf_len);
813 dist = fuzzy_distance(name, len, fname, fname_len);
814 /* Add some extra weight to how well the suffixes match. */
815 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
818 rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
819 name, (int)(dist>>16), (int)(dist&0xFFFF));
821 if (dist <= lowest_dist) {
830 /* This is only called for regular files. We return -2 if we've finished
831 * handling the file, -1 if no dest-linking occurred, or a non-negative
832 * value if we found an alternate basis file. */
833 static int try_dests_reg(struct file_struct *file, char *fname, int ndx,
834 char *cmpbuf, statx *sxp, int itemizing,
842 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
843 if (link_stat(cmpbuf, &sxp->st, 0) < 0 || !S_ISREG(sxp->st.st_mode))
845 switch (match_level) {
851 if (!unchanged_file(cmpbuf, file, &sxp->st))
857 if (!unchanged_attrs(cmpbuf, file, sxp))
859 if (always_checksum > 0 && preserve_times
860 && cmp_time(sxp->st.st_mtime, file->modtime))
867 } while (basis_dir[++j] != NULL);
872 if (j != best_match) {
874 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
875 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
879 if (match_level == 3 && !copy_dest) {
880 #ifdef SUPPORT_HARD_LINKS
882 if (!hard_link_one(file, fname, cmpbuf, 1))
884 if (preserve_hard_links && F_IS_HLINKED(file))
885 finish_hard_link(file, fname, &sxp->st, itemizing, code, j);
886 if (itemizing && (verbose > 1 || stdout_format_has_i > 1)) {
887 itemize(cmpbuf, file, ndx, 1, sxp,
888 ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
894 itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL);
895 if (verbose > 1 && maybe_ATTRS_REPORT)
896 rprintf(FCLIENT, "%s is uptodate\n", fname);
900 if (match_level >= 2) {
901 #ifdef SUPPORT_HARD_LINKS
902 try_a_copy: /* Copy the file locally. */
904 if (copy_file(cmpbuf, fname, file->mode) < 0) {
906 rsyserr(FINFO, errno, "copy_file %s => %s",
907 full_fname(cmpbuf), fname);
911 set_file_attrs(fname, file, NULL, cmpbuf, 0);
913 itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL);
914 #ifdef SUPPORT_XATTRS
916 xattr_clear_locals(file);
918 if (maybe_ATTRS_REPORT
919 && ((!itemizing && verbose && match_level == 2)
920 || (verbose > 1 && match_level == 3))) {
921 code = match_level == 3 ? FCLIENT : FINFO;
922 rprintf(code, "%s%s\n", fname,
923 match_level == 3 ? " is uptodate" : "");
925 #ifdef SUPPORT_HARD_LINKS
926 if (preserve_hard_links && F_IS_HLINKED(file))
927 finish_hard_link(file, fname, &sxp->st, itemizing, code, -1);
932 return FNAMECMP_BASIS_DIR_LOW + j;
935 /* This is only called for non-regular files. We return -2 if we've finished
936 * handling the file, or -1 if no dest-linking occurred, or a non-negative
937 * value if we found an alternate basis file. */
938 static int try_dests_non(struct file_struct *file, char *fname, int ndx,
939 char *cmpbuf, statx *sxp, int itemizing,
942 char lnk[MAXPATHLEN];
945 enum nonregtype type;
949 #ifndef SUPPORT_LINKS
950 if (S_ISLNK(file->mode))
953 if (S_ISDIR(file->mode)) {
955 } else if (IS_SPECIAL(file->mode))
957 else if (IS_DEVICE(file->mode))
960 else if (S_ISLNK(file->mode))
965 "internal: try_dests_non() called with invalid mode (%o)\n",
967 exit_cleanup(RERR_UNSUPPORTED);
971 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
972 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
976 if (!S_ISDIR(sxp->st.st_mode))
980 if (!IS_SPECIAL(sxp->st.st_mode))
984 if (!IS_DEVICE(sxp->st.st_mode))
989 if (!S_ISLNK(sxp->st.st_mode))
994 if (match_level < 1) {
1003 devp = F_RDEV_P(file);
1004 if (sxp->st.st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)))
1007 #ifdef SUPPORT_LINKS
1009 if ((len = readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0)
1012 if (strcmp(lnk, F_SYMLINK(file)) != 0)
1017 if (match_level < 2) {
1021 if (unchanged_attrs(cmpbuf, file, sxp)) {
1026 } while (basis_dir[++j] != NULL);
1031 if (j != best_match) {
1033 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1034 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1038 if (match_level == 3) {
1039 #ifdef SUPPORT_HARD_LINKS
1041 #ifndef CAN_HARDLINK_SYMLINK
1042 && !S_ISLNK(file->mode)
1044 #ifndef CAN_HARDLINK_SPECIAL
1045 && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode)
1047 && !S_ISDIR(file->mode)) {
1048 if (do_link(cmpbuf, fname) < 0) {
1049 rsyserr(FERROR, errno,
1050 "failed to hard-link %s with %s",
1054 if (preserve_hard_links && F_IS_HLINKED(file))
1055 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1059 if (itemizing && stdout_format_has_i
1060 && (verbose > 1 || stdout_format_has_i > 1)) {
1061 int chg = compare_dest && type != TYPE_DIR ? 0
1063 + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0);
1064 char *lp = match_level == 3 ? "" : NULL;
1065 itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp);
1067 if (verbose > 1 && maybe_ATTRS_REPORT) {
1068 rprintf(FCLIENT, "%s%s is uptodate\n",
1069 fname, type == TYPE_DIR ? "/" : "");
1077 static int phase = 0;
1078 static int dflt_perms;
1080 /* Acts on the indicated item in cur_flist whose name is fname. If a dir,
1081 * make sure it exists, and has the right permissions/timestamp info. For
1082 * all other non-regular files (symlinks, etc.) we create them here. For
1083 * regular files that have changed, we try to find a basis file and then
1084 * start sending checksums. The ndx is the file's unique index value.
1086 * When fname is non-null, it must point to a MAXPATHLEN buffer!
1088 * Note that f_out is set to -1 when doing final directory-permission and
1089 * modification-time repair. */
1090 static void recv_generator(char *fname, struct file_struct *file, int ndx,
1091 int itemizing, enum logcode code, int f_out)
1093 static int missing_below = -1, excluded_below = -1;
1094 static const char *parent_dirname = "";
1095 static struct file_list *fuzzy_dirlist = NULL;
1096 static int need_fuzzy_dirlist = 0;
1097 struct file_struct *fuzzy_file = NULL;
1098 int fd = -1, f_copy = -1;
1100 STRUCT_STAT partial_st;
1101 struct file_struct *back_file = NULL;
1102 int statret, real_ret, stat_errno;
1103 char *fnamecmp, *partialptr, *backupptr = NULL;
1104 char fnamecmpbuf[MAXPATHLEN];
1105 uchar fnamecmp_type;
1106 int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0;
1112 rprintf(FINFO, "recv_generator(%s,%d)\n", fname, ndx);
1114 if (server_filter_list.head) {
1115 if (excluded_below >= 0) {
1116 if (F_DEPTH(file) > excluded_below)
1118 excluded_below = -1;
1120 if (check_filter(&server_filter_list, fname,
1121 S_ISDIR(file->mode)) < 0) {
1122 if (S_ISDIR(file->mode))
1123 excluded_below = F_DEPTH(file);
1127 "skipping server-excluded file \"%s\"\n",
1134 if (missing_below >= 0) {
1135 if (F_DEPTH(file) <= missing_below) {
1139 } else if (!dry_run) {
1140 if (S_ISDIR(file->mode))
1141 file->flags |= FLAG_MISSING_DIR;
1146 sx.acc_acl = sx.def_acl = NULL;
1148 #ifdef SUPPORT_XATTRS
1152 if (fuzzy_dirlist) {
1153 flist_free(fuzzy_dirlist);
1154 fuzzy_dirlist = NULL;
1156 parent_dirname = "";
1158 stat_errno = ENOENT;
1160 const char *dn = file->dirname ? file->dirname : ".";
1161 if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) {
1162 if (relative_paths && !implied_dirs
1163 && do_stat(dn, &sx.st) < 0
1164 && create_directory_path(fname) < 0) {
1165 rsyserr(FERROR, errno,
1166 "recv_generator: mkdir %s failed",
1169 if (fuzzy_dirlist) {
1170 flist_free(fuzzy_dirlist);
1171 fuzzy_dirlist = NULL;
1174 need_fuzzy_dirlist = 1;
1176 if (!preserve_perms)
1177 dflt_perms = default_perms_for_dir(dn);
1180 parent_dirname = dn;
1182 if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
1183 strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
1184 fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, 1);
1185 need_fuzzy_dirlist = 0;
1188 statret = link_stat(fname, &sx.st,
1189 keep_dirlinks && S_ISDIR(file->mode));
1193 if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) {
1195 rprintf(FINFO, "not creating new %s \"%s\"\n",
1196 S_ISDIR(file->mode) ? "directory" : "file",
1199 if (S_ISDIR(file->mode)) {
1200 if (missing_below < 0) {
1203 missing_below = F_DEPTH(file);
1205 file->flags |= FLAG_MISSING_DIR;
1210 if (S_ISDIR(file->mode)) {
1211 /* The file to be received is a directory, so we need
1212 * to prepare appropriately. If there is already a
1213 * file of that name and it is *not* a directory, then
1214 * we need to delete it. If it doesn't exist, then
1215 * (perhaps recursively) create it. */
1216 if (statret == 0 && !S_ISDIR(sx.st.st_mode)) {
1217 if (delete_item(fname, sx.st.st_mode, "directory", del_opts) != 0)
1221 if (dry_run && statret != 0 && missing_below < 0) {
1222 missing_below = F_DEPTH(file);
1228 if (*fname == '.' && fname[1] == '\0')
1232 if (!preserve_perms) { /* See comment in non-dir code below. */
1233 file->mode = dest_mode(file->mode, sx.st.st_mode,
1234 dflt_perms, statret == 0);
1236 if (statret != 0 && basis_dir[0] != NULL) {
1237 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1245 if (itemizing && f_out != -1) {
1246 itemize(fname, file, ndx, statret, &sx,
1247 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
1249 if (real_ret != 0 && do_mkdir(fname,file->mode) < 0 && errno != EEXIST) {
1250 if (!relative_paths || errno != ENOENT
1251 || create_directory_path(fname) < 0
1252 || (do_mkdir(fname, file->mode) < 0 && errno != EEXIST)) {
1253 rsyserr(FERROR, errno,
1254 "recv_generator: mkdir %s failed",
1257 "*** Skipping any contents from this failed directory ***\n");
1258 missing_below = F_DEPTH(file);
1259 file->flags |= FLAG_MISSING_DIR;
1263 if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0)
1264 && verbose && code != FNONE && f_out != -1)
1265 rprintf(code, "%s/\n", fname);
1267 /* We need to ensure that the dirs in the transfer have writable
1268 * permissions during the time we are putting files within them.
1269 * This is then fixed after the transfer is done. */
1271 if (!am_root && !(file->mode & S_IWUSR) && dir_tweaking) {
1272 mode_t mode = file->mode | S_IWUSR;
1273 if (do_chmod(fname, mode) < 0) {
1274 rsyserr(FERROR, errno,
1275 "failed to modify permissions on %s",
1278 need_retouch_dir_perms = 1;
1282 if (real_ret != 0 && one_file_system)
1283 real_sx.st.st_dev = filesystem_dev;
1285 if (one_file_system) {
1286 uint32 *devp = F_DIR_DEV_P(file);
1287 DEV_MAJOR(devp) = major(real_sx.st.st_dev);
1288 DEV_MINOR(devp) = minor(real_sx.st.st_dev);
1291 else if (delete_during && f_out != -1 && !phase && dry_run < 2
1292 && (file->flags & FLAG_XFER_DIR))
1293 delete_in_dir(fname, file, &real_sx.st.st_dev);
1297 /* If we're not preserving permissions, change the file-list's
1298 * mode based on the local permissions and some heuristics. */
1299 if (!preserve_perms) {
1300 int exists = statret == 0 && !S_ISDIR(sx.st.st_mode);
1301 file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms,
1305 #ifdef SUPPORT_HARD_LINKS
1306 if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
1307 && hard_link_check(file, ndx, fname, statret, &sx, itemizing, code))
1311 if (preserve_links && S_ISLNK(file->mode)) {
1312 #ifdef SUPPORT_LINKS
1313 const char *sl = F_SYMLINK(file);
1314 if (safe_symlinks && unsafe_symlink(sl, fname)) {
1317 fname = f_name(file, NULL);
1319 "ignoring unsafe symlink %s -> \"%s\"\n",
1320 full_fname(fname), sl);
1325 char lnk[MAXPATHLEN];
1328 if (!S_ISLNK(sx.st.st_mode))
1330 else if ((len = readlink(fname, lnk, MAXPATHLEN-1)) > 0
1331 && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') {
1332 /* The link is pointing to the right place. */
1333 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1335 itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1336 #ifdef SUPPORT_HARD_LINKS
1337 if (preserve_hard_links && F_IS_HLINKED(file))
1338 finish_hard_link(file, fname, &sx.st, itemizing, code, -1);
1340 if (remove_source_files == 1)
1341 goto return_with_success;
1344 /* Not the right symlink (or not a symlink), so
1346 if (delete_item(fname, sx.st.st_mode, "symlink", del_opts) != 0)
1348 } else if (basis_dir[0] != NULL) {
1349 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1352 #ifndef CAN_HARDLINK_SYMLINK
1354 /* Resort to --copy-dest behavior. */
1364 #ifdef SUPPORT_HARD_LINKS
1365 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1368 if (do_symlink(sl, fname) != 0) {
1369 rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
1370 full_fname(fname), sl);
1372 set_file_attrs(fname, file, NULL, NULL, 0);
1374 itemize(fname, file, ndx, statret, &sx,
1375 ITEM_LOCAL_CHANGE, 0, NULL);
1377 if (code != FNONE && verbose)
1378 rprintf(code, "%s -> %s\n", fname, sl);
1379 #ifdef SUPPORT_HARD_LINKS
1380 if (preserve_hard_links && F_IS_HLINKED(file))
1381 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1383 /* This does not check remove_source_files == 1
1384 * because this is one of the items that the old
1385 * --remove-sent-files option would remove. */
1386 if (remove_source_files)
1387 goto return_with_success;
1393 if ((am_root && preserve_devices && IS_DEVICE(file->mode))
1394 || (preserve_specials && IS_SPECIAL(file->mode))) {
1395 uint32 *devp = F_RDEV_P(file);
1396 dev_t rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1399 if (IS_DEVICE(file->mode)) {
1400 if (!IS_DEVICE(sx.st.st_mode))
1404 if (!IS_SPECIAL(sx.st.st_mode))
1409 && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT)
1410 && sx.st.st_rdev == rdev) {
1411 /* The device or special file is identical. */
1412 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1414 itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1415 #ifdef SUPPORT_HARD_LINKS
1416 if (preserve_hard_links && F_IS_HLINKED(file))
1417 finish_hard_link(file, fname, &sx.st, itemizing, code, -1);
1419 if (remove_source_files == 1)
1420 goto return_with_success;
1423 if (delete_item(fname, sx.st.st_mode, t, del_opts) != 0)
1425 } else if (basis_dir[0] != NULL) {
1426 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1429 #ifndef CAN_HARDLINK_SPECIAL
1431 /* Resort to --copy-dest behavior. */
1441 #ifdef SUPPORT_HARD_LINKS
1442 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1446 rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n",
1447 fname, (int)file->mode,
1448 (long)major(rdev), (long)minor(rdev));
1450 if (do_mknod(fname, file->mode, rdev) < 0) {
1451 rsyserr(FERROR, errno, "mknod %s failed",
1454 set_file_attrs(fname, file, NULL, NULL, 0);
1456 itemize(fname, file, ndx, statret, &sx,
1457 ITEM_LOCAL_CHANGE, 0, NULL);
1459 if (code != FNONE && verbose)
1460 rprintf(code, "%s\n", fname);
1461 #ifdef SUPPORT_HARD_LINKS
1462 if (preserve_hard_links && F_IS_HLINKED(file))
1463 finish_hard_link(file, fname, NULL, itemizing, code, -1);
1465 if (remove_source_files == 1)
1466 goto return_with_success;
1471 if (!S_ISREG(file->mode)) {
1473 fname = f_name(file, NULL);
1474 rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname);
1478 if (max_size > 0 && F_LENGTH(file) > max_size) {
1481 fname = f_name(file, NULL);
1482 rprintf(FINFO, "%s is over max-size\n", fname);
1486 if (min_size > 0 && F_LENGTH(file) < min_size) {
1489 fname = f_name(file, NULL);
1490 rprintf(FINFO, "%s is under min-size\n", fname);
1495 if (ignore_existing > 0 && statret == 0) {
1497 rprintf(FINFO, "%s exists\n", fname);
1501 if (update_only > 0 && statret == 0
1502 && cmp_time(sx.st.st_mtime, file->modtime) > 0) {
1504 rprintf(FINFO, "%s is newer\n", fname);
1509 fnamecmp_type = FNAMECMP_FNAME;
1511 if (statret == 0 && !S_ISREG(sx.st.st_mode)) {
1512 if (delete_item(fname, sx.st.st_mode, "regular file", del_opts) != 0)
1515 stat_errno = ENOENT;
1518 if (statret != 0 && basis_dir[0] != NULL) {
1519 int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &sx,
1522 if (remove_source_files == 1)
1523 goto return_with_success;
1527 fnamecmp = fnamecmpbuf;
1536 if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
1537 && link_stat(partialptr, &partial_st, 0) == 0
1538 && S_ISREG(partial_st.st_mode)) {
1540 goto prepare_to_open;
1544 if (statret != 0 && fuzzy_dirlist && dry_run <= 1) {
1545 int j = find_fuzzy(file, fuzzy_dirlist);
1547 fuzzy_file = fuzzy_dirlist->files[j];
1548 f_name(fuzzy_file, fnamecmpbuf);
1550 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
1551 fname, fnamecmpbuf);
1553 sx.st.st_size = F_LENGTH(fuzzy_file);
1555 fnamecmp = fnamecmpbuf;
1556 fnamecmp_type = FNAMECMP_FUZZY;
1561 #ifdef SUPPORT_HARD_LINKS
1562 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1565 if (stat_errno == ENOENT)
1567 rsyserr(FERROR, stat_errno, "recv_generator: failed to stat %s",
1572 if (append_mode > 0 && sx.st.st_size > F_LENGTH(file))
1575 if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1577 else if (fnamecmp_type == FNAMECMP_FUZZY)
1579 else if (unchanged_file(fnamecmp, file, &sx.st)) {
1581 do_unlink(partialptr);
1582 handle_partial_dir(partialptr, PDIR_DELETE);
1584 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1586 itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL);
1587 #ifdef SUPPORT_HARD_LINKS
1588 if (preserve_hard_links && F_IS_HLINKED(file))
1589 finish_hard_link(file, fname, &sx.st, itemizing, code, -1);
1591 if (remove_source_files != 1)
1593 return_with_success:
1595 send_msg_int(MSG_SUCCESS, ndx);
1602 fnamecmp = partialptr;
1603 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1607 if (!do_xfers || read_batch || whole_file)
1610 if (fuzzy_dirlist) {
1611 int j = flist_find(fuzzy_dirlist, file);
1612 if (j >= 0) /* don't use changing file as future fuzzy basis */
1613 fuzzy_dirlist->files[j]->flags |= FLAG_FILE_SENT;
1617 fd = do_open(fnamecmp, O_RDONLY, 0);
1620 rsyserr(FERROR, errno, "failed to open %s, continuing",
1621 full_fname(fnamecmp));
1623 /* pretend the file didn't exist */
1624 #ifdef SUPPORT_HARD_LINKS
1625 if (preserve_hard_links && F_HLINK_NOT_LAST(file))
1628 statret = real_ret = -1;
1632 if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1633 if (!(backupptr = get_backup_name(fname))) {
1637 if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) {
1639 goto pretend_missing;
1641 if (robust_unlink(backupptr) && errno != ENOENT) {
1642 rsyserr(FERROR, errno, "unlink %s",
1643 full_fname(backupptr));
1644 unmake_file(back_file);
1648 if ((f_copy = do_open(backupptr,
1649 O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1650 rsyserr(FERROR, errno, "open %s",
1651 full_fname(backupptr));
1652 unmake_file(back_file);
1656 fnamecmp_type = FNAMECMP_BACKUP;
1660 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1661 fnamecmp, (double)sx.st.st_size);
1665 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1668 if (remove_source_files && !delay_updates && !phase)
1669 increment_active_files(ndx, itemizing, code);
1670 if (inc_recurse && !dry_run)
1671 cur_flist->in_progress++;
1672 #ifdef SUPPORT_HARD_LINKS
1673 if (preserve_hard_links && F_IS_HLINKED(file))
1674 file->flags |= FLAG_FILE_SENT;
1676 write_ndx(f_out, ndx);
1678 int iflags = ITEM_TRANSFER;
1679 if (always_checksum > 0)
1680 iflags |= ITEM_REPORT_CHECKSUM;
1681 if (fnamecmp_type != FNAMECMP_FNAME)
1682 iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1683 if (fnamecmp_type == FNAMECMP_FUZZY)
1684 iflags |= ITEM_XNAME_FOLLOWS;
1685 itemize(fnamecmp, file, -1, real_ret, &real_sx, iflags, fnamecmp_type,
1686 fuzzy_file ? fuzzy_file->basename : NULL);
1691 #ifdef SUPPORT_XATTRS
1692 if (preserve_xattrs)
1693 free_xattr(&real_sx);
1698 #ifdef SUPPORT_HARD_LINKS
1699 if (preserve_hard_links && F_IS_HLINKED(file))
1700 finish_hard_link(file, fname, &sx.st, itemizing, code, -1);
1707 if (statret != 0 || whole_file) {
1708 write_sum_head(f_out, NULL);
1712 generate_and_send_sums(fd, sx.st.st_size, f_out, f_copy);
1716 set_file_attrs(backupptr, back_file, NULL, NULL, 0);
1718 rprintf(FINFO, "backed up %s to %s\n",
1721 unmake_file(back_file);
1731 #ifdef SUPPORT_XATTRS
1732 if (preserve_xattrs)
1738 static void touch_up_dirs(struct file_list *flist, int ndx)
1740 static int counter = 0;
1741 struct file_struct *file;
1747 end = flist->used - 1;
1751 /* Fix any directory permissions that were modified during the
1752 * transfer and/or re-set any tweaked modified-time values. */
1753 for (i = start; i <= end; i++, counter++) {
1754 file = flist->files[i];
1756 fname = f_name(file, NULL);
1757 rprintf(FINFO, "touch_up_dirs: %s (%d)\n",
1760 if (!F_IS_ACTIVE(file) || !S_ISDIR(file->mode)
1761 || file->flags & FLAG_MISSING_DIR)
1763 if (!need_retouch_dir_times && file->mode & S_IWUSR)
1765 fname = f_name(file, NULL);
1766 if (!(file->mode & S_IWUSR))
1767 do_chmod(fname, file->mode);
1768 if (need_retouch_dir_times)
1769 set_modtime(fname, file->modtime, file->mode);
1770 if (allowed_lull && !(counter % lull_mod))
1771 maybe_send_keepalive();
1772 else if (!(counter & 0xFF))
1773 maybe_flush_socket(0);
1777 void check_for_finished_files(int itemizing, enum logcode code, int check_redo)
1779 struct file_struct *file;
1780 struct file_list *flist;
1781 char fbuf[MAXPATHLEN];
1784 #ifdef SUPPORT_HARD_LINKS
1785 while (preserve_hard_links && (ndx = get_hlink_num()) != -1) {
1786 flist = flist_for_ndx(ndx);
1787 assert(flist != NULL);
1788 file = flist->files[ndx];
1789 assert(file->flags & FLAG_HLINKED);
1790 finish_hard_link(file, f_name(file, fbuf), NULL, itemizing, code, -1);
1794 while (check_redo && (ndx = get_redo_num()) != -1) {
1795 csum_length = SUM_LENGTH;
1796 max_size = -max_size;
1797 min_size = -min_size;
1798 ignore_existing = -ignore_existing;
1799 ignore_non_existing = -ignore_non_existing;
1800 update_only = -update_only;
1801 always_checksum = -always_checksum;
1802 size_only = -size_only;
1803 append_mode = -append_mode;
1804 make_backups = -make_backups; /* avoid dup backup w/inplace */
1808 cur_flist = flist_for_ndx(ndx);
1810 file = cur_flist->files[ndx - cur_flist->ndx_start];
1812 strlcpy(fbuf, solo_file, sizeof fbuf);
1815 recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out);
1816 cur_flist->to_redo--;
1820 csum_length = SHORT_SUM_LENGTH;
1821 max_size = -max_size;
1822 min_size = -min_size;
1823 ignore_existing = -ignore_existing;
1824 ignore_non_existing = -ignore_non_existing;
1825 update_only = -update_only;
1826 always_checksum = -always_checksum;
1827 size_only = -size_only;
1828 append_mode = -append_mode;
1829 make_backups = -make_backups;
1833 while (cur_flist != first_flist) { /* only possible with inc_recurse */
1834 if (first_flist->in_progress || first_flist->to_redo)
1838 write_ndx(sock_f_out, NDX_DONE);
1839 maybe_flush_socket(1);
1842 flist_free(first_flist); /* updates first_flist */
1846 void generate_files(int f_out, const char *local_name)
1849 char fbuf[MAXPATHLEN];
1852 int save_do_progress = do_progress;
1854 if (protocol_version >= 29) {
1856 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1857 code = logfile_format_has_i ? FNONE : FLOG;
1858 } else if (am_daemon) {
1859 itemizing = logfile_format_has_i && do_xfers;
1860 maybe_ATTRS_REPORT = ATTRS_REPORT;
1861 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1862 } else if (!am_server) {
1863 itemizing = stdout_format_has_i;
1864 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1865 code = itemizing ? FNONE : FINFO;
1868 maybe_ATTRS_REPORT = ATTRS_REPORT;
1871 solo_file = local_name;
1872 dir_tweaking = !(list_only || solo_file || dry_run);
1873 need_retouch_dir_times = preserve_times && !omit_dir_times;
1874 lull_mod = allowed_lull * 5;
1877 rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
1879 if (delete_before && !solo_file && cur_flist->used > 0)
1881 if (delete_during == 2) {
1882 deldelay_size = BIGPATHBUFLEN * 4;
1883 deldelay_buf = new_array(char, deldelay_size);
1885 out_of_memory("delete-delay");
1889 if (append_mode > 0 || whole_file < 0)
1892 rprintf(FINFO, "delta-transmission %s\n",
1894 ? "disabled for local transfer or --whole-file"
1898 /* Since we often fill up the outgoing socket and then just sit around
1899 * waiting for the other 2 processes to do their thing, we don't want
1900 * to exit on a timeout. If the data stops flowing, the receiver will
1901 * notice that and let us know via the redo pipe (or its closing). */
1904 dflt_perms = (ACCESSPERMS & ~orig_umask);
1907 if (inc_recurse && cur_flist->ndx_start) {
1908 struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx];
1910 ndx = cur_flist->ndx_start - 1;
1911 recv_generator(fbuf, fp, ndx, itemizing, code, f_out);
1912 if (delete_during && dry_run < 2) {
1913 if (BITS_SETnUNSET(fp->flags, FLAG_XFER_DIR, FLAG_MISSING_DIR)) {
1915 if (one_file_system) {
1916 uint32 *devp = F_DIR_DEV_P(fp);
1917 dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1919 dirdev = MAKEDEV(0, 0);
1920 delete_in_dir(f_name(fp, fbuf), fp, &dirdev);
1924 for (i = cur_flist->low; i <= cur_flist->high; i++) {
1925 struct file_struct *file = cur_flist->sorted[i];
1927 if (!F_IS_ACTIVE(file))
1930 if (inc_recurse && S_ISDIR(file->mode)) {
1931 /* Regular dirs are at the end, so we can stop. */
1934 /* A dot-dir is at the start, so just skip it. */
1943 ndx = i + cur_flist->ndx_start;
1946 strlcpy(fbuf, solo_file, sizeof fbuf);
1949 recv_generator(fbuf, file, ndx, itemizing, code, f_out);
1951 check_for_finished_files(itemizing, code, 0);
1953 if (allowed_lull && !(i % lull_mod))
1954 maybe_send_keepalive();
1955 else if (!(i & 0xFF))
1956 maybe_flush_socket(0);
1960 write_ndx(f_out, NDX_DONE);
1965 check_for_finished_files(itemizing, code, 1);
1966 if (cur_flist->next || flist_eof)
1968 wait_for_receiver();
1970 } while ((cur_flist = cur_flist->next) != NULL);
1973 delete_in_dir(NULL, NULL, &dev_zero);
1976 rprintf(FINFO, "generate_files phase=%d\n", phase);
1979 check_for_finished_files(itemizing, code, 1);
1982 wait_for_receiver();
1987 rprintf(FINFO, "generate_files phase=%d\n", phase);
1989 write_ndx(f_out, NDX_DONE);
1990 /* Reduce round-trip lag-time for a useless delay-updates phase. */
1991 if (protocol_version >= 29 && !delay_updates)
1992 write_ndx(f_out, NDX_DONE);
1994 /* Read MSG_DONE for the redo phase (and any prior messages). */
1996 check_for_finished_files(itemizing, code, 0);
1997 if (msgdone_cnt > 1)
1999 wait_for_receiver();
2002 if (protocol_version >= 29) {
2005 rprintf(FINFO, "generate_files phase=%d\n", phase);
2007 write_ndx(f_out, NDX_DONE);
2008 /* Read MSG_DONE for delay-updates phase & prior messages. */
2009 while (msgdone_cnt == 2)
2010 wait_for_receiver();
2013 do_progress = save_do_progress;
2014 if (delete_during == 2)
2015 do_delayed_deletions(fbuf);
2016 if (delete_after && !solo_file && file_total > 0)
2019 if ((need_retouch_dir_perms || need_retouch_dir_times) && dir_tweaking)
2020 touch_up_dirs(dir_flist, -1);
2022 if (max_delete >= 0 && deletion_count > max_delete) {
2024 "Deletions stopped due to --max-delete limit (%d skipped)\n",
2025 deletion_count - max_delete);
2026 io_error |= IOERR_DEL_LIMIT;
2030 rprintf(FINFO, "generate_files finished\n");