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;
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 read_batch;
85 extern int safe_symlinks;
86 extern long block_size; /* "long" because popt can't set an int32. */
87 extern int max_delete;
88 extern int force_delete;
89 extern int one_file_system;
90 extern struct stats stats;
91 extern dev_t filesystem_dev;
92 extern mode_t orig_umask;
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;
102 int ignore_perishable = 0;
103 int non_perishable_cnt = 0;
104 int maybe_ATTRS_REPORT = 0;
106 static dev_t dev_zero;
107 static int deletion_count = 0; /* used to implement --max-delete */
108 static int deldelay_size = 0, deldelay_cnt = 0;
109 static char *deldelay_buf = NULL;
110 static int deldelay_fd = -1;
112 static int dir_tweaking;
113 static int need_retouch_dir_times;
114 static int need_retouch_dir_perms;
115 static const char *solo_file = NULL;
117 /* For calling delete_item() and delete_dir_contents(). */
118 #define DEL_RECURSE (1<<1) /* recurse */
119 #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
122 TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK
126 DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
129 /* Forward declaration for delete_item(). */
130 static enum delret delete_dir_contents(char *fname, int flags);
133 static int is_backup_file(char *fn)
135 int k = strlen(fn) - backup_suffix_len;
136 return k > 0 && strcmp(fn+k, backup_suffix) == 0;
139 /* Delete a file or directory. If DEL_RECURSE is set in the flags, this will
140 * delete recursively.
142 * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
143 * a directory! (The buffer is used for recursion, but returned unchanged.)
145 static enum delret delete_item(char *fbuf, int mode, char *replace, int flags)
152 rprintf(FINFO, "delete_item(%s) mode=%o flags=%d\n",
156 if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
157 ignore_perishable = 1;
158 /* If DEL_RECURSE is not set, this just reports emptiness. */
159 ret = delete_dir_contents(fbuf, flags);
160 ignore_perishable = 0;
161 if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
163 /* OK: try to delete the directory. */
166 if (!replace && max_delete >= 0 && ++deletion_count > max_delete)
171 ok = do_rmdir(fbuf) == 0;
172 } else if (make_backups > 0 && (backup_dir || !is_backup_file(fbuf))) {
173 what = "make_backup";
174 ok = make_backup(fbuf);
177 ok = robust_unlink(fbuf) == 0;
182 log_delete(fbuf, mode);
185 if (S_ISDIR(mode) && errno == ENOTEMPTY) {
186 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
189 } else if (errno != ENOENT) {
190 rsyserr(FERROR, errno, "delete_file: %s(%s) failed",
200 if (replace && ret != DR_SUCCESS) {
201 rprintf(FERROR, "could not make way for new %s: %s\n",
207 /* The directory is about to be deleted: if DEL_RECURSE is given, delete all
208 * its contents, otherwise just checks for content. Returns DR_SUCCESS or
209 * DR_NOT_EMPTY. Note that fname must point to a MAXPATHLEN buffer! (The
210 * buffer is used for recursion, but returned unchanged.)
212 static enum delret delete_dir_contents(char *fname, int flags)
214 struct file_list *dirlist;
222 rprintf(FINFO, "delete_dir_contents(%s) flags=%d\n",
226 dlen = strlen(fname);
227 save_filters = push_local_filters(fname, dlen);
229 non_perishable_cnt = 0;
230 dirlist = get_dirlist(fname, dlen, 0);
231 ret = non_perishable_cnt ? DR_NOT_EMPTY : DR_SUCCESS;
236 if (!(flags & DEL_RECURSE)) {
242 if (dlen != 1 || *fname != '/')
244 remainder = MAXPATHLEN - (p - fname);
246 /* We do our own recursion, so make delete_item() non-recursive. */
247 flags = (flags & ~DEL_RECURSE) | DEL_DIR_IS_EMPTY;
249 for (j = dirlist->used; j--; ) {
250 struct file_struct *fp = dirlist->files[j];
252 if (fp->flags & FLAG_MOUNT_DIR) {
255 "mount point, %s, pins parent directory\n",
262 strlcpy(p, fp->basename, remainder);
263 /* Save stack by recursing to ourself directly. */
264 if (S_ISDIR(fp->mode)
265 && delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
267 if (delete_item(fname, fp->mode, NULL, flags) != DR_SUCCESS)
275 pop_local_filters(save_filters);
277 if (ret == DR_NOT_EMPTY) {
278 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
284 static int start_delete_delay_temp(void)
286 char fnametmp[MAXPATHLEN];
287 int save_dry_run = dry_run;
290 if (!get_tmpname(fnametmp, "deldelay")
291 || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) {
292 rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n",
293 inc_recurse ? "" : " -- switching to --delete-after");
295 delete_after = !inc_recurse;
296 dry_run = save_dry_run;
300 dry_run = save_dry_run;
304 static int flush_delete_delay(void)
306 if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) {
307 rsyserr(FERROR, errno, "flush of delete-delay buffer");
317 static int remember_delete(struct file_struct *file, const char *fname)
322 len = snprintf(deldelay_buf + deldelay_cnt,
323 deldelay_size - deldelay_cnt,
324 "%x %s%c", (int)file->mode, fname, '\0');
325 if ((deldelay_cnt += len) <= deldelay_size)
327 if (deldelay_fd < 0 && !start_delete_delay_temp())
330 if (!flush_delete_delay())
337 static int read_delay_line(char *buf)
339 static int read_pos = 0;
341 char *bp, *past_space;
344 for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {}
345 if (j < deldelay_cnt)
347 if (deldelay_fd < 0) {
352 deldelay_cnt -= read_pos;
353 if (deldelay_cnt == deldelay_size)
355 if (deldelay_cnt && read_pos) {
356 memmove(deldelay_buf, deldelay_buf + read_pos,
359 len = read(deldelay_fd, deldelay_buf + deldelay_cnt,
360 deldelay_size - deldelay_cnt);
364 "ERROR: unexpected EOF in delete-delay file.\n");
369 rsyserr(FERROR, errno,
370 "reading delete-delay file");
377 bp = deldelay_buf + read_pos;
379 if (sscanf(bp, "%x ", &mode) != 1) {
381 rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n");
384 past_space = strchr(bp, ' ') + 1;
385 len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */
388 if (len > MAXPATHLEN) {
389 rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n");
393 /* The caller needs the name in a MAXPATHLEN buffer, so we copy it
394 * instead of returning a pointer to our buffer. */
395 memcpy(buf, past_space, len);
400 static void do_delayed_deletions(char *delbuf)
404 if (deldelay_fd >= 0) {
405 if (deldelay_cnt && !flush_delete_delay())
407 lseek(deldelay_fd, 0, 0);
409 while ((mode = read_delay_line(delbuf)) >= 0)
410 delete_item(delbuf, mode, NULL, DEL_RECURSE);
411 if (deldelay_fd >= 0)
415 /* This function is used to implement per-directory deletion, and is used by
416 * all the --delete-WHEN options. Note that the fbuf pointer must point to a
417 * MAXPATHLEN buffer with the name of the directory in it (the functions we
418 * call will append names onto the end, but the old dir value will be restored
420 static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
422 static int already_warned = 0;
423 struct file_list *dirlist;
424 char delbuf[MAXPATHLEN];
428 change_local_filter_dir(NULL, 0, 0);
433 rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
436 maybe_send_keepalive();
438 if (io_error && !ignore_errors) {
442 "IO error encountered -- skipping file deletion\n");
448 change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
450 if (one_file_system) {
451 if (file->flags & FLAG_TOP_DIR)
452 filesystem_dev = *fs_dev;
453 else if (filesystem_dev != *fs_dev)
457 dirlist = get_dirlist(fbuf, dlen, 0);
459 /* If an item in dirlist is not found in flist, delete it
460 * from the filesystem. */
461 for (i = dirlist->used; i--; ) {
462 struct file_struct *fp = dirlist->files[i];
463 if (!F_IS_ACTIVE(fp))
465 if (fp->flags & FLAG_MOUNT_DIR) {
467 rprintf(FINFO, "cannot delete mount point: %s\n",
471 if (flist_find(cur_flist, fp) < 0) {
473 if (delete_during == 2) {
474 if (!remember_delete(fp, delbuf))
477 delete_item(delbuf, fp->mode, NULL, DEL_RECURSE);
484 /* This deletes any files on the receiving side that are not present on the
485 * sending side. This is used by --delete-before and --delete-after. */
486 static void do_delete_pass(void)
488 char fbuf[MAXPATHLEN];
492 /* dry_run is incremented when the destination doesn't exist yet. */
493 if (dry_run > 1 || list_only)
496 for (j = 0; j < cur_flist->used; j++) {
497 struct file_struct *file = cur_flist->sorted[j];
499 if (!(file->flags & FLAG_XFER_DIR))
503 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
504 rprintf(FINFO, "deleting in %s\n", fbuf);
506 if (link_stat(fbuf, &st, keep_dirlinks) < 0
507 || !S_ISDIR(st.st_mode))
510 delete_in_dir(fbuf, file, &st.st_dev);
512 delete_in_dir(NULL, NULL, &dev_zero);
514 if (do_progress && !am_server)
515 rprintf(FINFO, " \r");
518 int unchanged_attrs(const char *fname, struct file_struct *file, statx *sxp)
520 if (preserve_perms && !BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
523 if (am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file))
526 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) && sxp->st.st_gid != (gid_t)F_GROUP(file))
530 if (preserve_acls && !S_ISLNK(file->mode)) {
531 if (!ACL_READY(*sxp))
533 if (set_acl(NULL, file, sxp) == 0)
537 #ifdef SUPPORT_XATTRS
538 if (preserve_xattrs) {
539 if (!XATTR_READY(*sxp))
540 get_xattr(fname, sxp);
541 if (xattr_diff(file, sxp, 0))
549 void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret,
550 statx *sxp, int32 iflags, uchar fnamecmp_type,
553 if (statret >= 0) { /* A from-dest-dir statret can == 1! */
554 int keep_time = !preserve_times ? 0
555 : S_ISDIR(file->mode) ? preserve_times > 1
556 : !S_ISLNK(file->mode);
558 if (S_ISREG(file->mode) && F_LENGTH(file) != sxp->st.st_size)
559 iflags |= ITEM_REPORT_SIZE;
560 if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time
561 && !(iflags & ITEM_MATCHED)
562 && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
563 || (keep_time && cmp_time(file->modtime, sxp->st.st_mtime) != 0))
564 iflags |= ITEM_REPORT_TIME;
565 if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
566 iflags |= ITEM_REPORT_PERMS;
567 if (uid_ndx && am_root && (uid_t)F_OWNER(file) != sxp->st.st_uid)
568 iflags |= ITEM_REPORT_OWNER;
569 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
570 && sxp->st.st_gid != (gid_t)F_GROUP(file))
571 iflags |= ITEM_REPORT_GROUP;
573 if (preserve_acls && !S_ISLNK(file->mode)) {
574 if (!ACL_READY(*sxp))
575 get_acl(fnamecmp, sxp);
576 if (set_acl(NULL, file, sxp) == 0)
577 iflags |= ITEM_REPORT_ACL;
580 #ifdef SUPPORT_XATTRS
581 if (preserve_xattrs) {
582 if (!XATTR_READY(*sxp))
583 get_xattr(fnamecmp, sxp);
584 if (xattr_diff(file, sxp, 1))
585 iflags |= ITEM_REPORT_XATTR;
589 #ifdef SUPPORT_XATTRS
590 if (preserve_xattrs && xattr_diff(file, NULL, 1))
591 iflags |= ITEM_REPORT_XATTR;
593 iflags |= ITEM_IS_NEW;
597 if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || verbose > 1
598 || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) {
599 if (protocol_version >= 29) {
601 write_ndx(sock_f_out, ndx);
602 write_shortint(sock_f_out, iflags);
603 if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
604 write_byte(sock_f_out, fnamecmp_type);
605 if (iflags & ITEM_XNAME_FOLLOWS)
606 write_vstring(sock_f_out, xname, strlen(xname));
607 #ifdef SUPPORT_XATTRS
608 if (iflags & ITEM_REPORT_XATTR && !dry_run)
609 send_xattr_request(NULL, file, sock_f_out);
611 } else if (ndx >= 0) {
612 enum logcode code = logfile_format_has_i ? FINFO : FCLIENT;
613 log_item(code, file, &stats, iflags, xname);
619 /* Perform our quick-check heuristic for determining if a file is unchanged. */
620 int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
622 if (st->st_size != F_LENGTH(file))
625 /* if always checksum is set then we use the checksum instead
626 of the file time to determine whether to sync */
627 if (always_checksum > 0 && S_ISREG(st->st_mode)) {
628 char sum[MAX_DIGEST_LEN];
629 file_checksum(fn, sum, st->st_size);
630 return memcmp(sum, F_SUM(file), checksum_len) == 0;
639 return cmp_time(st->st_mtime, file->modtime) == 0;
644 * set (initialize) the size entries in the per-file sum_struct
645 * calculating dynamic block and checksum sizes.
647 * This is only called from generate_and_send_sums() but is a separate
648 * function to encapsulate the logic.
650 * The block size is a rounded square root of file length.
652 * The checksum size is determined according to:
653 * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
654 * provided by Donovan Baarda which gives a probability of rsync
655 * algorithm corrupting data and falling back using the whole md4
658 * This might be made one of several selectable heuristics.
660 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
666 blength = block_size;
667 else if (len <= BLOCK_SIZE * BLOCK_SIZE)
668 blength = BLOCK_SIZE;
673 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
674 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
675 blength = MAX_BLOCK_SIZE;
680 if (len < (int64)blength * blength)
683 } while (c >= 8); /* round to multiple of 8 */
684 blength = MAX(blength, BLOCK_SIZE);
688 if (protocol_version < 27) {
689 s2length = csum_length;
690 } else if (csum_length == SUM_LENGTH) {
691 s2length = SUM_LENGTH;
695 int b = BLOCKSUM_BIAS;
696 for (l = len; l >>= 1; b += 2) {}
697 for (c = blength; (c >>= 1) && b; b--) {}
698 /* add a bit, subtract rollsum, round up. */
699 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
700 s2length = MAX(s2length, csum_length);
701 s2length = MIN(s2length, SUM_LENGTH);
705 sum->blength = blength;
706 sum->s2length = s2length;
707 sum->remainder = (int32)(len % blength);
708 sum->count = (int32)(len / blength) + (sum->remainder != 0);
710 if (sum->count && verbose > 2) {
712 "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
713 (double)sum->count, (long)sum->remainder, (long)sum->blength,
714 sum->s2length, (double)sum->flength);
720 * Generate and send a stream of signatures/checksums that describe a buffer
722 * Generate approximately one checksum every block_len bytes.
724 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
727 struct map_struct *mapbuf;
728 struct sum_struct sum;
731 sum_sizes_sqroot(&sum, len);
732 write_sum_head(f_out, &sum);
734 if (append_mode > 0 && f_copy < 0)
738 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
742 for (i = 0; i < sum.count; i++) {
743 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
744 char *map = map_ptr(mapbuf, offset, n1);
745 char sum2[SUM_LENGTH];
752 full_write(f_copy, map, n1);
757 sum1 = get_checksum1(map, n1);
758 get_checksum2(map, n1, sum2);
762 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
763 (double)i, (double)offset - n1, (long)n1,
764 (unsigned long)sum1);
766 write_int(f_out, sum1);
767 write_buf(f_out, sum2, sum.s2length);
775 /* Try to find a filename in the same dir as "fname" with a similar name. */
776 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
778 int fname_len, fname_suf_len;
779 const char *fname_suf, *fname = file->basename;
780 uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
781 int j, lowest_j = -1;
783 fname_len = strlen(fname);
784 fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
786 for (j = 0; j < dirlist->used; j++) {
787 struct file_struct *fp = dirlist->files[j];
788 const char *suf, *name;
792 if (!S_ISREG(fp->mode) || !F_LENGTH(fp)
793 || fp->flags & FLAG_FILE_SENT)
798 if (F_LENGTH(fp) == F_LENGTH(file)
799 && cmp_time(fp->modtime, file->modtime) == 0) {
802 "fuzzy size/modtime match for %s\n",
809 suf = find_filename_suffix(name, len, &suf_len);
811 dist = fuzzy_distance(name, len, fname, fname_len);
812 /* Add some extra weight to how well the suffixes match. */
813 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
816 rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
817 name, (int)(dist>>16), (int)(dist&0xFFFF));
819 if (dist <= lowest_dist) {
828 /* This is only called for regular files. We return -2 if we've finished
829 * handling the file, -1 if no dest-linking occurred, or a non-negative
830 * value if we found an alternate basis file. */
831 static int try_dests_reg(struct file_struct *file, char *fname, int ndx,
832 char *cmpbuf, statx *sxp, int itemizing,
840 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
841 if (link_stat(cmpbuf, &sxp->st, 0) < 0 || !S_ISREG(sxp->st.st_mode))
843 switch (match_level) {
849 if (!unchanged_file(cmpbuf, file, &sxp->st))
855 if (!unchanged_attrs(cmpbuf, file, sxp))
857 if (always_checksum > 0 && preserve_times
858 && cmp_time(sxp->st.st_mtime, file->modtime))
865 } while (basis_dir[++j] != NULL);
870 if (j != best_match) {
872 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
873 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
877 if (match_level == 3 && !copy_dest) {
878 #ifdef SUPPORT_HARD_LINKS
880 if (!hard_link_one(file, fname, cmpbuf, 1))
882 if (preserve_hard_links && F_IS_HLINKED(file))
883 finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, j);
884 if (itemizing && (verbose > 1 || stdout_format_has_i > 1)) {
885 itemize(cmpbuf, file, ndx, 1, sxp,
886 ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
892 itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL);
893 if (verbose > 1 && maybe_ATTRS_REPORT)
894 rprintf(FCLIENT, "%s is uptodate\n", fname);
898 if (match_level >= 2) {
899 #ifdef SUPPORT_HARD_LINKS
900 try_a_copy: /* Copy the file locally. */
902 if (copy_file(cmpbuf, fname, file->mode) < 0) {
904 rsyserr(FINFO, errno, "copy_file %s => %s",
905 full_fname(cmpbuf), fname);
909 set_file_attrs(fname, file, NULL, cmpbuf, 0);
911 itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL);
912 #ifdef SUPPORT_XATTRS
914 xattr_clear_locals(file);
916 if (maybe_ATTRS_REPORT
917 && ((!itemizing && verbose && match_level == 2)
918 || (verbose > 1 && match_level == 3))) {
919 code = match_level == 3 ? FCLIENT : FINFO;
920 rprintf(code, "%s%s\n", fname,
921 match_level == 3 ? " is uptodate" : "");
923 #ifdef SUPPORT_HARD_LINKS
924 if (preserve_hard_links && F_IS_HLINKED(file))
925 finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, -1);
930 return FNAMECMP_BASIS_DIR_LOW + j;
933 /* This is only called for non-regular files. We return -2 if we've finished
934 * handling the file, or -1 if no dest-linking occurred, or a non-negative
935 * value if we found an alternate basis file. */
936 static int try_dests_non(struct file_struct *file, char *fname, int ndx,
937 char *cmpbuf, statx *sxp, int itemizing,
940 char lnk[MAXPATHLEN];
943 enum nonregtype type;
947 #ifndef SUPPORT_LINKS
948 if (S_ISLNK(file->mode))
951 if (S_ISDIR(file->mode)) {
953 } else if (IS_SPECIAL(file->mode))
955 else if (IS_DEVICE(file->mode))
958 else if (S_ISLNK(file->mode))
963 "internal: try_dests_non() called with invalid mode (%o)\n",
965 exit_cleanup(RERR_UNSUPPORTED);
969 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
970 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
974 if (!S_ISDIR(sxp->st.st_mode))
978 if (!IS_SPECIAL(sxp->st.st_mode))
982 if (!IS_DEVICE(sxp->st.st_mode))
987 if (!S_ISLNK(sxp->st.st_mode))
992 if (match_level < 1) {
1001 devp = F_RDEV_P(file);
1002 if (sxp->st.st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)))
1005 #ifdef SUPPORT_LINKS
1007 if ((len = readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0)
1010 if (strcmp(lnk, F_SYMLINK(file)) != 0)
1015 if (match_level < 2) {
1019 if (unchanged_attrs(cmpbuf, file, sxp)) {
1024 } while (basis_dir[++j] != NULL);
1029 if (j != best_match) {
1031 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1032 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1036 if (match_level == 3) {
1037 #ifdef SUPPORT_HARD_LINKS
1039 #ifndef CAN_HARDLINK_SYMLINK
1040 && !S_ISLNK(file->mode)
1042 #ifndef CAN_HARDLINK_SPECIAL
1043 && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode)
1045 && !S_ISDIR(file->mode)) {
1046 if (do_link(cmpbuf, fname) < 0) {
1047 rsyserr(FERROR, errno,
1048 "failed to hard-link %s with %s",
1052 if (preserve_hard_links && F_IS_HLINKED(file))
1053 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1057 if (itemizing && stdout_format_has_i
1058 && (verbose > 1 || stdout_format_has_i > 1)) {
1059 int chg = compare_dest && type != TYPE_DIR ? 0
1061 + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0);
1062 char *lp = match_level == 3 ? "" : NULL;
1063 itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp);
1065 if (verbose > 1 && maybe_ATTRS_REPORT) {
1066 rprintf(FCLIENT, "%s%s is uptodate\n",
1067 fname, type == TYPE_DIR ? "/" : "");
1075 static int phase = 0;
1076 static int dflt_perms;
1078 /* Acts on the indicated item in cur_flist whose name is fname. If a dir,
1079 * make sure it exists, and has the right permissions/timestamp info. For
1080 * all other non-regular files (symlinks, etc.) we create them here. For
1081 * regular files that have changed, we try to find a basis file and then
1082 * start sending checksums. The ndx is the file's unique index value.
1084 * When fname is non-null, it must point to a MAXPATHLEN buffer!
1086 * Note that f_out is set to -1 when doing final directory-permission and
1087 * modification-time repair. */
1088 static void recv_generator(char *fname, struct file_struct *file, int ndx,
1089 int itemizing, enum logcode code, int f_out)
1091 static int missing_below = -1, excluded_below = -1;
1092 static const char *parent_dirname = "";
1093 static struct file_struct *missing_dir = NULL, *excluded_dir = NULL;
1094 static struct file_list *fuzzy_dirlist = NULL;
1095 static int need_fuzzy_dirlist = 0;
1096 struct file_struct *fuzzy_file = NULL;
1097 int fd = -1, f_copy = -1;
1099 STRUCT_STAT partial_st;
1100 struct file_struct *back_file = NULL;
1101 int statret, real_ret, stat_errno;
1102 char *fnamecmp, *partialptr, *backupptr = NULL;
1103 char fnamecmpbuf[MAXPATHLEN];
1104 uchar fnamecmp_type;
1105 int implied_dirs_are_missing = relative_paths && !implied_dirs && !inc_recurse;
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
1117 && (!implied_dirs_are_missing || f_name_has_prefix(file, excluded_dir)))
1119 excluded_below = -1;
1121 if (check_filter(&server_filter_list, fname,
1122 S_ISDIR(file->mode)) < 0) {
1123 if (S_ISDIR(file->mode)) {
1124 excluded_below = F_DEPTH(file);
1125 excluded_dir = file;
1130 "skipping server-excluded file \"%s\"\n",
1137 if (missing_below >= 0) {
1138 if (F_DEPTH(file) <= missing_below
1139 || (implied_dirs_are_missing && !f_name_has_prefix(file, missing_dir))) {
1143 } else if (!dry_run) {
1144 if (S_ISDIR(file->mode))
1145 file->flags |= FLAG_MISSING_DIR;
1150 sx.acc_acl = sx.def_acl = NULL;
1152 #ifdef SUPPORT_XATTRS
1156 if (fuzzy_dirlist) {
1157 flist_free(fuzzy_dirlist);
1158 fuzzy_dirlist = NULL;
1160 parent_dirname = "";
1162 stat_errno = ENOENT;
1164 const char *dn = file->dirname ? file->dirname : ".";
1165 if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) {
1166 if (relative_paths && !implied_dirs
1167 && do_stat(dn, &sx.st) < 0
1168 && create_directory_path(fname) < 0) {
1169 rsyserr(FERROR, errno,
1170 "recv_generator: mkdir %s failed",
1173 if (fuzzy_dirlist) {
1174 flist_free(fuzzy_dirlist);
1175 fuzzy_dirlist = NULL;
1178 need_fuzzy_dirlist = 1;
1180 if (!preserve_perms)
1181 dflt_perms = default_perms_for_dir(dn);
1184 parent_dirname = dn;
1186 if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
1187 strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
1188 fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, 1);
1189 need_fuzzy_dirlist = 0;
1192 statret = link_stat(fname, &sx.st,
1193 keep_dirlinks && S_ISDIR(file->mode));
1197 if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) {
1199 rprintf(FINFO, "not creating new %s \"%s\"\n",
1200 S_ISDIR(file->mode) ? "directory" : "file",
1203 if (S_ISDIR(file->mode)) {
1204 if (missing_below < 0) {
1207 missing_below = F_DEPTH(file);
1210 file->flags |= FLAG_MISSING_DIR;
1215 if (S_ISDIR(file->mode)) {
1216 if (!implied_dirs && !(file->flags & FLAG_XFER_DIR))
1218 if (inc_recurse && ndx != cur_flist->ndx_start - 1) {
1219 /* In inc_recurse mode we want ot make sure any missing
1220 * directories get created while we're still processing
1221 * the parent dir (which allows us to touch the parent
1222 * dir's mtime right away). We will handle the dir in
1223 * full later (right before we handle its contents). */
1225 && (S_ISDIR(sx.st.st_mode)
1226 || delete_item(fname, sx.st.st_mode, "directory", del_opts) != 0))
1227 goto cleanup; /* Any errors get reported later. */
1228 if (do_mkdir(fname, file->mode & 0700) == 0)
1229 file->flags |= FLAG_DIR_CREATED;
1232 /* The file to be received is a directory, so we need
1233 * to prepare appropriately. If there is already a
1234 * file of that name and it is *not* a directory, then
1235 * we need to delete it. If it doesn't exist, then
1236 * (perhaps recursively) create it. */
1237 if (statret == 0 && !S_ISDIR(sx.st.st_mode)) {
1238 if (delete_item(fname, sx.st.st_mode, "directory", del_opts) != 0)
1239 goto skipping_dir_contents;
1242 if (dry_run && statret != 0 && missing_below < 0) {
1243 missing_below = F_DEPTH(file);
1249 if (file->flags & FLAG_DIR_CREATED)
1251 if (!preserve_perms) { /* See comment in non-dir code below. */
1252 file->mode = dest_mode(file->mode, sx.st.st_mode,
1253 dflt_perms, statret == 0);
1255 if (statret != 0 && basis_dir[0] != NULL) {
1256 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1264 if (itemizing && f_out != -1) {
1265 itemize(fname, file, ndx, statret, &sx,
1266 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
1268 if (real_ret != 0 && do_mkdir(fname,file->mode) < 0 && errno != EEXIST) {
1269 if (!relative_paths || errno != ENOENT
1270 || create_directory_path(fname) < 0
1271 || (do_mkdir(fname, file->mode) < 0 && errno != EEXIST)) {
1272 rsyserr(FERROR, errno,
1273 "recv_generator: mkdir %s failed",
1275 skipping_dir_contents:
1277 "*** Skipping any contents from this failed directory ***\n");
1278 missing_below = F_DEPTH(file);
1280 file->flags |= FLAG_MISSING_DIR;
1284 if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0)
1285 && verbose && code != FNONE && f_out != -1)
1286 rprintf(code, "%s/\n", fname);
1288 /* We need to ensure that the dirs in the transfer have writable
1289 * permissions during the time we are putting files within them.
1290 * This is then fixed after the transfer is done. */
1292 if (!am_root && !(file->mode & S_IWUSR) && dir_tweaking) {
1293 mode_t mode = file->mode | S_IWUSR;
1294 if (do_chmod(fname, mode) < 0) {
1295 rsyserr(FERROR, errno,
1296 "failed to modify permissions on %s",
1299 need_retouch_dir_perms = 1;
1303 if (real_ret != 0 && one_file_system)
1304 real_sx.st.st_dev = filesystem_dev;
1306 if (one_file_system) {
1307 uint32 *devp = F_DIR_DEV_P(file);
1308 DEV_MAJOR(devp) = major(real_sx.st.st_dev);
1309 DEV_MINOR(devp) = minor(real_sx.st.st_dev);
1312 else if (delete_during && f_out != -1 && !phase && dry_run < 2
1313 && (file->flags & FLAG_XFER_DIR))
1314 delete_in_dir(fname, file, &real_sx.st.st_dev);
1318 /* If we're not preserving permissions, change the file-list's
1319 * mode based on the local permissions and some heuristics. */
1320 if (!preserve_perms) {
1321 int exists = statret == 0 && !S_ISDIR(sx.st.st_mode);
1322 file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms,
1326 #ifdef SUPPORT_HARD_LINKS
1327 if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
1328 && hard_link_check(file, ndx, fname, statret, &sx, itemizing, code))
1332 if (preserve_links && S_ISLNK(file->mode)) {
1333 #ifdef SUPPORT_LINKS
1334 const char *sl = F_SYMLINK(file);
1335 if (safe_symlinks && unsafe_symlink(sl, fname)) {
1338 fname = f_name(file, NULL);
1340 "ignoring unsafe symlink %s -> \"%s\"\n",
1341 full_fname(fname), sl);
1346 char lnk[MAXPATHLEN];
1349 if (!S_ISLNK(sx.st.st_mode))
1351 else if ((len = readlink(fname, lnk, MAXPATHLEN-1)) > 0
1352 && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') {
1353 /* The link is pointing to the right place. */
1354 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1356 itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1357 #ifdef SUPPORT_HARD_LINKS
1358 if (preserve_hard_links && F_IS_HLINKED(file))
1359 finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1361 if (remove_source_files == 1)
1362 goto return_with_success;
1365 /* Not the right symlink (or not a symlink), so
1367 if (delete_item(fname, sx.st.st_mode, "symlink", del_opts) != 0)
1369 } else if (basis_dir[0] != NULL) {
1370 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1373 #ifndef CAN_HARDLINK_SYMLINK
1375 /* Resort to --copy-dest behavior. */
1385 #ifdef SUPPORT_HARD_LINKS
1386 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1387 cur_flist->in_progress++;
1391 if (do_symlink(sl, fname) != 0) {
1392 rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
1393 full_fname(fname), sl);
1395 set_file_attrs(fname, file, NULL, NULL, 0);
1397 itemize(fname, file, ndx, statret, &sx,
1398 ITEM_LOCAL_CHANGE, 0, NULL);
1400 if (code != FNONE && verbose)
1401 rprintf(code, "%s -> %s\n", fname, sl);
1402 #ifdef SUPPORT_HARD_LINKS
1403 if (preserve_hard_links && F_IS_HLINKED(file))
1404 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1406 /* This does not check remove_source_files == 1
1407 * because this is one of the items that the old
1408 * --remove-sent-files option would remove. */
1409 if (remove_source_files)
1410 goto return_with_success;
1416 if ((am_root && preserve_devices && IS_DEVICE(file->mode))
1417 || (preserve_specials && IS_SPECIAL(file->mode))) {
1418 uint32 *devp = F_RDEV_P(file);
1419 dev_t rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1422 if (IS_DEVICE(file->mode)) {
1423 if (!IS_DEVICE(sx.st.st_mode))
1427 if (!IS_SPECIAL(sx.st.st_mode))
1432 && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT)
1433 && sx.st.st_rdev == rdev) {
1434 /* The device or special file is identical. */
1435 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1437 itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1438 #ifdef SUPPORT_HARD_LINKS
1439 if (preserve_hard_links && F_IS_HLINKED(file))
1440 finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1442 if (remove_source_files == 1)
1443 goto return_with_success;
1446 if (delete_item(fname, sx.st.st_mode, t, del_opts) != 0)
1448 } else if (basis_dir[0] != NULL) {
1449 int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1452 #ifndef CAN_HARDLINK_SPECIAL
1454 /* Resort to --copy-dest behavior. */
1464 #ifdef SUPPORT_HARD_LINKS
1465 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1466 cur_flist->in_progress++;
1471 rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n",
1472 fname, (int)file->mode,
1473 (long)major(rdev), (long)minor(rdev));
1475 if (do_mknod(fname, file->mode, rdev) < 0) {
1476 rsyserr(FERROR, errno, "mknod %s failed",
1479 set_file_attrs(fname, file, NULL, NULL, 0);
1481 itemize(fname, file, ndx, statret, &sx,
1482 ITEM_LOCAL_CHANGE, 0, NULL);
1484 if (code != FNONE && verbose)
1485 rprintf(code, "%s\n", fname);
1486 #ifdef SUPPORT_HARD_LINKS
1487 if (preserve_hard_links && F_IS_HLINKED(file))
1488 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1490 if (remove_source_files == 1)
1491 goto return_with_success;
1496 if (!S_ISREG(file->mode)) {
1498 fname = f_name(file, NULL);
1499 rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname);
1503 if (max_size > 0 && F_LENGTH(file) > max_size) {
1506 fname = f_name(file, NULL);
1507 rprintf(FINFO, "%s is over max-size\n", fname);
1511 if (min_size > 0 && F_LENGTH(file) < min_size) {
1514 fname = f_name(file, NULL);
1515 rprintf(FINFO, "%s is under min-size\n", fname);
1520 if (ignore_existing > 0 && statret == 0) {
1522 rprintf(FINFO, "%s exists\n", fname);
1526 if (update_only > 0 && statret == 0
1527 && cmp_time(sx.st.st_mtime, file->modtime) > 0) {
1529 rprintf(FINFO, "%s is newer\n", fname);
1534 fnamecmp_type = FNAMECMP_FNAME;
1536 if (statret == 0 && !S_ISREG(sx.st.st_mode)) {
1537 if (delete_item(fname, sx.st.st_mode, "regular file", del_opts) != 0)
1540 stat_errno = ENOENT;
1543 if (statret != 0 && basis_dir[0] != NULL) {
1544 int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &sx,
1547 if (remove_source_files == 1)
1548 goto return_with_success;
1552 fnamecmp = fnamecmpbuf;
1561 if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
1562 && link_stat(partialptr, &partial_st, 0) == 0
1563 && S_ISREG(partial_st.st_mode)) {
1565 goto prepare_to_open;
1569 if (statret != 0 && fuzzy_dirlist && dry_run <= 1) {
1570 int j = find_fuzzy(file, fuzzy_dirlist);
1572 fuzzy_file = fuzzy_dirlist->files[j];
1573 f_name(fuzzy_file, fnamecmpbuf);
1575 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
1576 fname, fnamecmpbuf);
1578 sx.st.st_size = F_LENGTH(fuzzy_file);
1580 fnamecmp = fnamecmpbuf;
1581 fnamecmp_type = FNAMECMP_FUZZY;
1586 #ifdef SUPPORT_HARD_LINKS
1587 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1588 cur_flist->in_progress++;
1592 if (stat_errno == ENOENT)
1594 rsyserr(FERROR, stat_errno, "recv_generator: failed to stat %s",
1599 if (append_mode > 0 && sx.st.st_size >= F_LENGTH(file))
1602 if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1604 else if (fnamecmp_type == FNAMECMP_FUZZY)
1606 else if (unchanged_file(fnamecmp, file, &sx.st)) {
1608 do_unlink(partialptr);
1609 handle_partial_dir(partialptr, PDIR_DELETE);
1611 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1613 itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL);
1614 #ifdef SUPPORT_HARD_LINKS
1615 if (preserve_hard_links && F_IS_HLINKED(file))
1616 finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1618 if (remove_source_files != 1)
1620 return_with_success:
1622 send_msg_int(MSG_SUCCESS, ndx);
1629 fnamecmp = partialptr;
1630 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1634 if (!do_xfers || read_batch || whole_file)
1637 if (fuzzy_dirlist) {
1638 int j = flist_find(fuzzy_dirlist, file);
1639 if (j >= 0) /* don't use changing file as future fuzzy basis */
1640 fuzzy_dirlist->files[j]->flags |= FLAG_FILE_SENT;
1644 fd = do_open(fnamecmp, O_RDONLY, 0);
1647 rsyserr(FERROR, errno, "failed to open %s, continuing",
1648 full_fname(fnamecmp));
1650 /* pretend the file didn't exist */
1651 #ifdef SUPPORT_HARD_LINKS
1652 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1653 cur_flist->in_progress++;
1657 statret = real_ret = -1;
1661 if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1662 if (!(backupptr = get_backup_name(fname))) {
1666 if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) {
1668 goto pretend_missing;
1670 if (robust_unlink(backupptr) && errno != ENOENT) {
1671 rsyserr(FERROR, errno, "unlink %s",
1672 full_fname(backupptr));
1673 unmake_file(back_file);
1677 if ((f_copy = do_open(backupptr,
1678 O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1679 rsyserr(FERROR, errno, "open %s",
1680 full_fname(backupptr));
1681 unmake_file(back_file);
1685 fnamecmp_type = FNAMECMP_BACKUP;
1689 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1690 fnamecmp, (double)sx.st.st_size);
1694 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1697 if (remove_source_files && !delay_updates && !phase)
1698 increment_active_files(ndx, itemizing, code);
1699 if (inc_recurse && !dry_run)
1700 cur_flist->in_progress++;
1701 #ifdef SUPPORT_HARD_LINKS
1702 if (preserve_hard_links && F_IS_HLINKED(file))
1703 file->flags |= FLAG_FILE_SENT;
1705 write_ndx(f_out, ndx);
1707 int iflags = ITEM_TRANSFER;
1708 if (always_checksum > 0)
1709 iflags |= ITEM_REPORT_CHECKSUM;
1710 if (fnamecmp_type != FNAMECMP_FNAME)
1711 iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1712 if (fnamecmp_type == FNAMECMP_FUZZY)
1713 iflags |= ITEM_XNAME_FOLLOWS;
1714 itemize(fnamecmp, file, -1, real_ret, &real_sx, iflags, fnamecmp_type,
1715 fuzzy_file ? fuzzy_file->basename : NULL);
1720 #ifdef SUPPORT_XATTRS
1721 if (preserve_xattrs)
1722 free_xattr(&real_sx);
1727 #ifdef SUPPORT_HARD_LINKS
1728 if (preserve_hard_links && F_IS_HLINKED(file))
1729 finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1736 if (statret != 0 || whole_file) {
1737 write_sum_head(f_out, NULL);
1741 generate_and_send_sums(fd, sx.st.st_size, f_out, f_copy);
1745 set_file_attrs(backupptr, back_file, NULL, NULL, 0);
1747 rprintf(FINFO, "backed up %s to %s\n",
1750 unmake_file(back_file);
1760 #ifdef SUPPORT_XATTRS
1761 if (preserve_xattrs)
1767 static void touch_up_dirs(struct file_list *flist, int ndx)
1769 static int counter = 0;
1770 struct file_struct *file;
1776 end = flist->used - 1;
1780 /* Fix any directory permissions that were modified during the
1781 * transfer and/or re-set any tweaked modified-time values. */
1782 for (i = start; i <= end; i++, counter++) {
1783 file = flist->files[i];
1784 if (!S_ISDIR(file->mode)
1785 || (relative_paths && !implied_dirs && !(file->flags & FLAG_XFER_DIR)))
1788 fname = f_name(file, NULL);
1789 rprintf(FINFO, "touch_up_dirs: %s (%d)\n",
1792 if (!F_IS_ACTIVE(file) || file->flags & FLAG_MISSING_DIR
1793 || (!need_retouch_dir_times && file->mode & S_IWUSR))
1795 fname = f_name(file, NULL);
1796 if (!(file->mode & S_IWUSR))
1797 do_chmod(fname, file->mode);
1798 if (need_retouch_dir_times)
1799 set_modtime(fname, file->modtime, file->mode);
1800 if (allowed_lull && !(counter % lull_mod))
1801 maybe_send_keepalive();
1802 else if (!(counter & 0xFF))
1803 maybe_flush_socket(0);
1807 void check_for_finished_files(int itemizing, enum logcode code, int check_redo)
1809 struct file_struct *file;
1810 struct file_list *flist;
1811 char fbuf[MAXPATHLEN];
1814 #ifdef SUPPORT_HARD_LINKS
1815 while (preserve_hard_links && (ndx = get_hlink_num()) != -1) {
1816 flist = flist_for_ndx(ndx);
1817 assert(flist != NULL);
1818 file = flist->files[ndx - flist->ndx_start];
1819 assert(file->flags & FLAG_HLINKED);
1820 finish_hard_link(file, f_name(file, fbuf), ndx, NULL, itemizing, code, -1);
1824 while (check_redo && (ndx = get_redo_num()) != -1) {
1825 csum_length = SUM_LENGTH;
1826 max_size = -max_size;
1827 min_size = -min_size;
1828 ignore_existing = -ignore_existing;
1829 ignore_non_existing = -ignore_non_existing;
1830 update_only = -update_only;
1831 always_checksum = -always_checksum;
1832 size_only = -size_only;
1833 append_mode = -append_mode;
1834 make_backups = -make_backups; /* avoid dup backup w/inplace */
1838 cur_flist = flist_for_ndx(ndx);
1840 file = cur_flist->files[ndx - cur_flist->ndx_start];
1842 strlcpy(fbuf, solo_file, sizeof fbuf);
1845 recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out);
1846 cur_flist->to_redo--;
1850 csum_length = SHORT_SUM_LENGTH;
1851 max_size = -max_size;
1852 min_size = -min_size;
1853 ignore_existing = -ignore_existing;
1854 ignore_non_existing = -ignore_non_existing;
1855 update_only = -update_only;
1856 always_checksum = -always_checksum;
1857 size_only = -size_only;
1858 append_mode = -append_mode;
1859 make_backups = -make_backups;
1863 while (cur_flist != first_flist) { /* only possible with inc_recurse */
1864 if (first_flist->in_progress || first_flist->to_redo)
1868 write_ndx(sock_f_out, NDX_DONE);
1869 maybe_flush_socket(1);
1872 if (delete_during == 2 || !dir_tweaking) {
1873 /* Skip directory touch-up. */
1874 } else if (first_flist->ndx_start != 0)
1875 touch_up_dirs(dir_flist, first_flist->parent_ndx);
1877 flist_free(first_flist); /* updates first_flist */
1881 void generate_files(int f_out, const char *local_name)
1884 char fbuf[MAXPATHLEN];
1887 int save_do_progress = do_progress;
1889 if (protocol_version >= 29) {
1891 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1892 code = logfile_format_has_i ? FNONE : FLOG;
1893 } else if (am_daemon) {
1894 itemizing = logfile_format_has_i && do_xfers;
1895 maybe_ATTRS_REPORT = ATTRS_REPORT;
1896 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1897 } else if (!am_server) {
1898 itemizing = stdout_format_has_i;
1899 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
1900 code = itemizing ? FNONE : FINFO;
1903 maybe_ATTRS_REPORT = ATTRS_REPORT;
1906 solo_file = local_name;
1907 dir_tweaking = !(list_only || solo_file || dry_run);
1908 need_retouch_dir_times = preserve_times > 1;
1909 lull_mod = allowed_lull * 5;
1912 rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
1914 if (delete_before && !solo_file && cur_flist->used > 0)
1916 if (delete_during == 2) {
1917 deldelay_size = BIGPATHBUFLEN * 4;
1918 deldelay_buf = new_array(char, deldelay_size);
1920 out_of_memory("delete-delay");
1924 if (append_mode > 0 || whole_file < 0)
1927 rprintf(FINFO, "delta-transmission %s\n",
1929 ? "disabled for local transfer or --whole-file"
1933 /* Since we often fill up the outgoing socket and then just sit around
1934 * waiting for the other 2 processes to do their thing, we don't want
1935 * to exit on a timeout. If the data stops flowing, the receiver will
1936 * notice that and let us know via the redo pipe (or its closing). */
1939 dflt_perms = (ACCESSPERMS & ~orig_umask);
1942 #ifdef SUPPORT_HARD_LINKS
1943 if (preserve_hard_links && inc_recurse) {
1944 while (!flist_eof && file_total < FILECNT_LOOKAHEAD/2)
1945 wait_for_receiver();
1949 if (inc_recurse && cur_flist->ndx_start) {
1950 struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx];
1952 ndx = cur_flist->ndx_start - 1;
1953 recv_generator(fbuf, fp, ndx, itemizing, code, f_out);
1954 if (delete_during && dry_run < 2) {
1955 if (BITS_SETnUNSET(fp->flags, FLAG_XFER_DIR, FLAG_MISSING_DIR)) {
1957 if (one_file_system) {
1958 uint32 *devp = F_DIR_DEV_P(fp);
1959 dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1961 dirdev = MAKEDEV(0, 0);
1962 delete_in_dir(f_name(fp, fbuf), fp, &dirdev);
1966 for (i = cur_flist->low; i <= cur_flist->high; i++) {
1967 struct file_struct *file = cur_flist->sorted[i];
1969 if (!F_IS_ACTIVE(file))
1977 ndx = i + cur_flist->ndx_start;
1980 strlcpy(fbuf, solo_file, sizeof fbuf);
1983 recv_generator(fbuf, file, ndx, itemizing, code, f_out);
1985 check_for_finished_files(itemizing, code, 0);
1987 if (allowed_lull && !(i % lull_mod))
1988 maybe_send_keepalive();
1989 else if (!(i & 0xFF))
1990 maybe_flush_socket(0);
1994 write_ndx(f_out, NDX_DONE);
1999 check_for_finished_files(itemizing, code, 1);
2000 if (cur_flist->next || flist_eof)
2002 wait_for_receiver();
2004 } while ((cur_flist = cur_flist->next) != NULL);
2007 delete_in_dir(NULL, NULL, &dev_zero);
2010 rprintf(FINFO, "generate_files phase=%d\n", phase);
2013 check_for_finished_files(itemizing, code, 1);
2016 wait_for_receiver();
2021 rprintf(FINFO, "generate_files phase=%d\n", phase);
2023 write_ndx(f_out, NDX_DONE);
2024 /* Reduce round-trip lag-time for a useless delay-updates phase. */
2025 if (protocol_version >= 29 && !delay_updates)
2026 write_ndx(f_out, NDX_DONE);
2028 /* Read MSG_DONE for the redo phase (and any prior messages). */
2030 check_for_finished_files(itemizing, code, 0);
2031 if (msgdone_cnt > 1)
2033 wait_for_receiver();
2036 if (protocol_version >= 29) {
2039 rprintf(FINFO, "generate_files phase=%d\n", phase);
2041 write_ndx(f_out, NDX_DONE);
2042 /* Read MSG_DONE for delay-updates phase & prior messages. */
2043 while (msgdone_cnt == 2)
2044 wait_for_receiver();
2047 do_progress = save_do_progress;
2048 if (delete_during == 2)
2049 do_delayed_deletions(fbuf);
2050 if (delete_after && !solo_file && file_total > 0)
2053 if ((need_retouch_dir_perms || need_retouch_dir_times)
2054 && dir_tweaking && (!inc_recurse || delete_during == 2))
2055 touch_up_dirs(dir_flist, -1);
2057 if (max_delete >= 0 && deletion_count > max_delete) {
2059 "Deletions stopped due to --max-delete limit (%d skipped)\n",
2060 deletion_count - max_delete);
2061 io_error |= IOERR_DEL_LIMIT;
2065 rprintf(FINFO, "generate_files finished\n");