2 * Generate and receive file lists.
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2002-2008 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.
33 extern int am_generator;
34 extern int inc_recurse;
35 extern int do_progress;
36 extern int always_checksum;
38 extern int ignore_errors;
39 extern int numeric_ids;
43 extern int filesfrom_fd;
44 extern int one_file_system;
45 extern int copy_dirlinks;
46 extern int keep_dirlinks;
47 extern int preserve_uid;
48 extern int preserve_gid;
49 extern int preserve_acls;
50 extern int preserve_xattrs;
51 extern int preserve_links;
52 extern int preserve_hard_links;
53 extern int preserve_devices;
54 extern int preserve_specials;
58 extern int relative_paths;
59 extern int implied_dirs;
60 extern int file_extra_cnt;
61 extern int ignore_perishable;
62 extern int non_perishable_cnt;
63 extern int prune_empty_dirs;
64 extern int copy_links;
65 extern int copy_unsafe_links;
66 extern int protocol_version;
67 extern int sanitize_paths;
68 extern int munge_symlinks;
69 extern int need_unsorted_flist;
70 extern int unsort_ndx;
71 extern struct stats stats;
72 extern char *filesfrom_host;
74 extern char curr_dir[MAXPATHLEN];
76 extern struct chmod_mode_struct *chmod_modes;
78 extern struct filter_list_struct filter_list;
79 extern struct filter_list_struct daemon_filter_list;
82 extern int filesfrom_convert;
83 extern iconv_t ic_send, ic_recv;
86 #define PTR_SIZE (sizeof (struct file_struct *))
90 dev_t filesystem_dev; /* used to implement -x */
92 struct file_list *cur_flist, *first_flist, *dir_flist;
93 int send_dir_ndx = -1, send_dir_depth = -1;
94 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
95 int file_total = 0; /* total of all active items over all file-lists */
96 int flist_eof = 0; /* all the file-lists are now known */
99 #define SLASH_ENDING_NAME 1
100 #define DOTDIR_NAME 2
102 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
103 * internally, even if this platform does not allow files to have 64-bit inums.
104 * The only exception is if we're on a platform with no 64-bit type at all.
106 * Because we use read_longint() to get these off the wire, if you transfer
107 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
108 * machine with no 64-bit types then you will get an overflow error.
110 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
111 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
112 * be truncated. But it's a kind of silly thing to do anyhow. */
114 /* The tmp_* vars are used as a cache area by make_file() to store data
115 * that the sender doesn't need to remember in its file list. The data
116 * will survive just long enough to be used by send_file_entry(). */
117 static dev_t tmp_rdev;
118 #ifdef SUPPORT_HARD_LINKS
119 static int64 tmp_dev, tmp_ino;
121 static char tmp_sum[MAX_DIGEST_LEN];
123 static char empty_sum[MAX_DIGEST_LEN];
124 static int flist_count_offset; /* for --delete --progress */
125 static int dir_count = 0;
127 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
128 static void output_flist(struct file_list *flist);
130 void init_flist(void)
133 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
134 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
136 checksum_len = protocol_version < 21 ? 2
137 : protocol_version < 30 ? MD4_DIGEST_LEN
141 static int show_filelist_p(void)
143 return verbose && xfer_dirs && !am_server && !inc_recurse;
146 static void start_filelist_progress(char *kind)
148 rprintf(FCLIENT, "%s ... ", kind);
149 if (verbose > 1 || do_progress)
150 rprintf(FCLIENT, "\n");
154 static void emit_filelist_progress(int count)
156 rprintf(FCLIENT, " %d files...\r", count);
159 static void maybe_emit_filelist_progress(int count)
161 if (do_progress && show_filelist_p() && (count % 100) == 0)
162 emit_filelist_progress(count);
165 static void finish_filelist_progress(const struct file_list *flist)
168 /* This overwrites the progress line */
169 rprintf(FINFO, "%d file%sto consider\n",
170 flist->used, flist->used == 1 ? " " : "s ");
172 rprintf(FINFO, "done\n");
175 void show_flist_stats(void)
180 /* Stat either a symlink or its referent, depending on the settings of
181 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
183 * If path is the name of a symlink, then the linkbuf buffer (which must hold
184 * MAXPATHLEN chars) will be set to the symlink's target string.
186 * The stat structure pointed to by stp will contain information about the
187 * link or the referent as appropriate, if they exist. */
188 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
191 if (link_stat(path, stp, copy_dirlinks) < 0)
193 if (S_ISLNK(stp->st_mode)) {
194 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
197 linkbuf[llen] = '\0';
198 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
200 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
203 return x_stat(path, stp, NULL);
205 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
206 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
207 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
208 llen - SYMLINK_PREFIX_LEN + 1);
213 return x_stat(path, stp, NULL);
217 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
221 return x_stat(path, stp, NULL);
222 if (x_lstat(path, stp, NULL) < 0)
224 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
226 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
231 return x_stat(path, stp, NULL);
235 static inline int is_daemon_excluded(const char *fname, int is_dir)
237 if (daemon_filter_list.head
238 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
245 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
247 if (daemon_filter_list.head) {
250 while ((slash = strchr(slash+1, '/')) != NULL) {
253 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
262 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
271 /* This function is used to check if a file should be included/excluded
272 * from the list of files based on its name and type etc. The value of
273 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
274 static int is_excluded(const char *fname, int is_dir, int filter_level)
276 #if 0 /* This currently never happens, so avoid a useless compare. */
277 if (filter_level == NO_FILTERS)
280 if (is_daemon_excluded(fname, is_dir))
282 if (filter_level != ALL_FILTERS)
285 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
290 static void send_directory(int f, struct file_list *flist,
291 char *fbuf, int len, int flags);
293 static const char *pathname, *orig_dir;
294 static int pathname_len;
296 /* Make sure flist can hold at least flist->used + extra entries. */
297 static void flist_expand(struct file_list *flist, int extra)
299 struct file_struct **new_ptr;
301 if (flist->used + extra <= flist->malloced)
304 if (flist->malloced < FLIST_START)
305 flist->malloced = FLIST_START;
306 else if (flist->malloced >= FLIST_LINEAR)
307 flist->malloced += FLIST_LINEAR;
309 flist->malloced *= 2;
311 /* In case count jumped or we are starting the list
312 * with a known size just set it. */
313 if (flist->malloced < flist->used + extra)
314 flist->malloced = flist->used + extra;
316 new_ptr = realloc_array(flist->files, struct file_struct *,
319 if (verbose >= 2 && flist->malloced != FLIST_START) {
320 rprintf(FCLIENT, "[%s] expand file_list pointer array to %.0f bytes, did%s move\n",
322 (double)sizeof flist->files[0] * flist->malloced,
323 (new_ptr == flist->files) ? " not" : "");
326 flist->files = new_ptr;
329 out_of_memory("flist_expand");
332 static void flist_done_allocating(struct file_list *flist)
334 void *ptr = pool_boundary(flist->file_pool, 8*1024);
335 if (flist->pool_boundary == ptr)
336 flist->pool_boundary = NULL; /* list didn't use any pool memory */
338 flist->pool_boundary = ptr;
341 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
342 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
343 * with dir == NULL taken to be the starting directory, and dirlen < 0
344 * indicating that strdup(dir) should be called and then the -dirlen length
345 * value checked to ensure that it is not daemon-excluded. */
346 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
349 char *cpy = strdup(dir);
351 change_dir(orig_dir, CD_SKIP_CHDIR);
352 if (path_is_daemon_excluded(cpy, 0))
358 if (pathname == F_PATHNAME(file))
360 dir = F_PATHNAME(file);
362 dirlen = strlen(dir);
363 } else if (pathname == dir)
365 if (dir && *dir != '/')
366 change_dir(orig_dir, CD_SKIP_CHDIR);
370 pathname_len = dirlen;
375 if (!change_dir(dir, CD_NORMAL)) {
377 io_error |= IOERR_GENERAL;
378 rsyserr(FERROR, errno, "change_dir %s failed", full_fname(dir));
380 change_dir(orig_dir, CD_NORMAL);
389 static void send_file_entry(int f, const char *fname, struct file_struct *file, int ndx, int first_ndx)
391 static time_t modtime;
393 #ifdef SUPPORT_HARD_LINKS
397 static uint32 rdev_major;
400 static const char *user_name, *group_name;
401 static char lastname[MAXPATHLEN];
402 int first_hlink_ndx = -1;
406 /* Initialize starting value of xflags. */
407 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
409 if (file->flags & FLAG_CONTENT_DIR)
410 xflags = file->flags & FLAG_TOP_DIR;
411 else if (file->flags & FLAG_IMPLIED_DIR)
412 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
414 xflags = XMIT_NO_CONTENT_DIR;
416 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
418 if (file->mode == mode)
419 xflags |= XMIT_SAME_MODE;
423 if ((preserve_devices && IS_DEVICE(mode))
424 || (preserve_specials && IS_SPECIAL(mode))) {
425 if (protocol_version < 28) {
426 if (tmp_rdev == rdev)
427 xflags |= XMIT_SAME_RDEV_pre28;
432 if ((uint32)major(rdev) == rdev_major)
433 xflags |= XMIT_SAME_RDEV_MAJOR;
435 rdev_major = major(rdev);
436 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
437 xflags |= XMIT_RDEV_MINOR_8_pre30;
439 } else if (protocol_version < 28)
440 rdev = MAKEDEV(0, 0);
441 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
442 xflags |= XMIT_SAME_UID;
446 user_name = add_uid(uid);
447 if (inc_recurse && user_name)
448 xflags |= XMIT_USER_NAME_FOLLOWS;
451 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
452 xflags |= XMIT_SAME_GID;
456 group_name = add_gid(gid);
457 if (inc_recurse && group_name)
458 xflags |= XMIT_GROUP_NAME_FOLLOWS;
461 if (file->modtime == modtime)
462 xflags |= XMIT_SAME_TIME;
464 modtime = file->modtime;
466 #ifdef SUPPORT_HARD_LINKS
468 if (protocol_version >= 30) {
469 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
470 first_hlink_ndx = (int32)(long)np->data - 1;
471 if (first_hlink_ndx < 0) {
472 np->data = (void*)(long)(first_ndx + ndx + 1);
473 xflags |= XMIT_HLINK_FIRST;
476 if (tmp_dev == dev) {
477 if (protocol_version >= 28)
478 xflags |= XMIT_SAME_DEV_pre30;
482 xflags |= XMIT_HLINKED;
487 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
489 l2 = strlen(fname+l1);
492 xflags |= XMIT_SAME_NAME;
494 xflags |= XMIT_LONG_NAME;
496 /* We must make sure we don't send a zero flag byte or the
497 * other end will terminate the flist transfer. Note that
498 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
499 * it's harmless way to add a bit to the first flag byte. */
500 if (protocol_version >= 28) {
501 if (!xflags && !S_ISDIR(mode))
502 xflags |= XMIT_TOP_DIR;
503 if ((xflags & 0xFF00) || !xflags) {
504 xflags |= XMIT_EXTENDED_FLAGS;
505 write_shortint(f, xflags);
507 write_byte(f, xflags);
509 if (!(xflags & 0xFF))
510 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
511 write_byte(f, xflags);
513 if (xflags & XMIT_SAME_NAME)
515 if (xflags & XMIT_LONG_NAME)
516 write_varint30(f, l2);
519 write_buf(f, fname + l1, l2);
521 if (first_hlink_ndx >= 0) {
522 write_varint(f, first_hlink_ndx);
523 if (first_hlink_ndx >= first_ndx)
527 write_varlong30(f, F_LENGTH(file), 3);
528 if (!(xflags & XMIT_SAME_TIME)) {
529 if (protocol_version >= 30)
530 write_varlong(f, modtime, 4);
532 write_int(f, modtime);
534 if (!(xflags & XMIT_SAME_MODE))
535 write_int(f, to_wire_mode(mode));
536 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
537 if (protocol_version < 30)
540 write_varint(f, uid);
541 if (xflags & XMIT_USER_NAME_FOLLOWS) {
542 int len = strlen(user_name);
544 write_buf(f, user_name, len);
548 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
549 if (protocol_version < 30)
552 write_varint(f, gid);
553 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
554 int len = strlen(group_name);
556 write_buf(f, group_name, len);
560 if ((preserve_devices && IS_DEVICE(mode))
561 || (preserve_specials && IS_SPECIAL(mode))) {
562 if (protocol_version < 28) {
563 if (!(xflags & XMIT_SAME_RDEV_pre28))
564 write_int(f, (int)rdev);
566 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
567 write_varint30(f, major(rdev));
568 if (protocol_version >= 30)
569 write_varint(f, minor(rdev));
570 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
571 write_byte(f, minor(rdev));
573 write_int(f, minor(rdev));
578 if (preserve_links && S_ISLNK(mode)) {
579 const char *sl = F_SYMLINK(file);
580 int len = strlen(sl);
581 write_varint30(f, len);
582 write_buf(f, sl, len);
586 #ifdef SUPPORT_HARD_LINKS
587 if (tmp_dev != 0 && protocol_version < 30) {
588 if (protocol_version < 26) {
589 /* 32-bit dev_t and ino_t */
590 write_int(f, (int32)dev);
591 write_int(f, (int32)tmp_ino);
593 /* 64-bit dev_t and ino_t */
594 if (!(xflags & XMIT_SAME_DEV_pre30))
595 write_longint(f, dev);
596 write_longint(f, tmp_ino);
601 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
606 /* Prior to 28, we sent a useless set of nulls. */
609 write_buf(f, sum, checksum_len);
613 strlcpy(lastname, fname, MAXPATHLEN);
615 if (S_ISREG(mode) || S_ISLNK(mode))
616 stats.total_size += F_LENGTH(file);
619 static struct file_struct *recv_file_entry(struct file_list *flist,
622 static int64 modtime;
624 #ifdef SUPPORT_HARD_LINKS
628 static uint32 rdev_major;
631 static uint16 gid_flags;
632 static char lastname[MAXPATHLEN], *lastdir;
633 static int lastdir_depth, lastdir_len = -1;
634 static unsigned int del_hier_name_len = 0;
635 static int in_del_hier = 0;
636 char thisname[MAXPATHLEN];
637 unsigned int l1 = 0, l2 = 0;
638 int alloc_len, basename_len, linkname_len;
639 int extra_len = file_extra_cnt * EXTRA_LEN;
640 int first_hlink_ndx = -1;
642 const char *basename;
643 struct file_struct *file;
647 if (xflags & XMIT_SAME_NAME)
650 if (xflags & XMIT_LONG_NAME)
651 l2 = read_varint30(f);
655 if (l2 >= MAXPATHLEN - l1) {
657 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
658 xflags, l1, l2, lastname, who_am_i());
659 overflow_exit("recv_file_entry");
662 strlcpy(thisname, lastname, l1 + 1);
663 read_sbuf(f, &thisname[l1], l2);
664 thisname[l1 + l2] = 0;
666 /* Abuse basename_len for a moment... */
667 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
670 if (ic_recv != (iconv_t)-1) {
673 INIT_CONST_XBUF(outbuf, thisname);
674 INIT_XBUF(inbuf, lastname, basename_len, -1);
676 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
677 io_error |= IOERR_GENERAL;
679 "[%s] cannot convert filename: %s (%s)\n",
680 who_am_i(), lastname, strerror(errno));
683 outbuf.buf[outbuf.len] = '\0';
688 clean_fname(thisname, 0);
691 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
693 if ((basename = strrchr(thisname, '/')) != NULL) {
694 int len = basename++ - thisname;
695 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
696 lastdir = new_array(char, len + 1);
697 memcpy(lastdir, thisname, len);
700 lastdir_depth = count_dir_elements(lastdir);
704 basename_len = strlen(basename) + 1; /* count the '\0' */
706 #ifdef SUPPORT_HARD_LINKS
707 if (protocol_version >= 30
708 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
709 first_hlink_ndx = read_varint(f);
710 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
712 "hard-link reference out of range: %d (%d)\n",
713 first_hlink_ndx, flist->ndx_start + flist->used);
714 exit_cleanup(RERR_PROTOCOL);
716 if (first_hlink_ndx >= flist->ndx_start) {
717 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
718 file_length = F_LENGTH(first);
719 modtime = first->modtime;
722 uid = F_OWNER(first);
724 gid = F_GROUP(first);
725 if ((preserve_devices && IS_DEVICE(mode))
726 || (preserve_specials && IS_SPECIAL(mode))) {
727 uint32 *devp = F_RDEV_P(first);
728 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
729 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
731 if (preserve_links && S_ISLNK(mode))
732 linkname_len = strlen(F_SYMLINK(first)) + 1;
740 file_length = read_varlong30(f, 3);
741 if (!(xflags & XMIT_SAME_TIME)) {
742 if (protocol_version >= 30) {
743 modtime = read_varlong(f, 4);
744 #if SIZEOF_TIME_T < SIZEOF_INT64
745 if (!am_generator && (int64)(time_t)modtime != modtime) {
747 "Time value of %s truncated on receiver.\n",
752 modtime = read_int(f);
754 if (!(xflags & XMIT_SAME_MODE))
755 mode = from_wire_mode(read_int(f));
757 if (chmod_modes && !S_ISLNK(mode))
758 mode = tweak_mode(mode, chmod_modes);
760 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
761 if (protocol_version < 30)
762 uid = (uid_t)read_int(f);
764 uid = (uid_t)read_varint(f);
765 if (xflags & XMIT_USER_NAME_FOLLOWS)
766 uid = recv_user_name(f, uid);
767 else if (inc_recurse && am_root && !numeric_ids)
768 uid = match_uid(uid);
771 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
772 if (protocol_version < 30)
773 gid = (gid_t)read_int(f);
775 gid = (gid_t)read_varint(f);
777 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
778 gid = recv_group_name(f, gid, &gid_flags);
779 else if (inc_recurse && (!am_root || !numeric_ids))
780 gid = match_gid(gid, &gid_flags);
784 if ((preserve_devices && IS_DEVICE(mode))
785 || (preserve_specials && IS_SPECIAL(mode))) {
786 if (protocol_version < 28) {
787 if (!(xflags & XMIT_SAME_RDEV_pre28))
788 rdev = (dev_t)read_int(f);
791 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
792 rdev_major = read_varint30(f);
793 if (protocol_version >= 30)
794 rdev_minor = read_varint(f);
795 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
796 rdev_minor = read_byte(f);
798 rdev_minor = read_int(f);
799 rdev = MAKEDEV(rdev_major, rdev_minor);
801 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
803 } else if (protocol_version < 28)
804 rdev = MAKEDEV(0, 0);
807 if (preserve_links && S_ISLNK(mode)) {
808 linkname_len = read_varint30(f) + 1; /* count the '\0' */
809 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
810 rprintf(FERROR, "overflow: linkname_len=%d\n",
812 overflow_exit("recv_file_entry");
815 linkname_len += SYMLINK_PREFIX_LEN;
821 #ifdef SUPPORT_HARD_LINKS
823 if (preserve_hard_links) {
824 if (protocol_version < 28 && S_ISREG(mode))
825 xflags |= XMIT_HLINKED;
826 if (xflags & XMIT_HLINKED)
827 extra_len += (inc_recurse+1) * EXTRA_LEN;
832 /* Directories need an extra int32 for the default ACL. */
833 if (preserve_acls && S_ISDIR(mode))
834 extra_len += EXTRA_LEN;
837 if (always_checksum && S_ISREG(mode))
838 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
840 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
841 extra_len += EXTRA_LEN;
843 if (inc_recurse && S_ISDIR(mode)) {
844 if (one_file_system) {
845 /* Room to save the dir's device for -x */
846 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
848 pool = dir_flist->file_pool;
850 pool = flist->file_pool;
852 #if EXTRA_ROUNDING > 0
853 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
854 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
857 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
859 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
861 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
863 file = (struct file_struct *)bp;
864 bp += FILE_STRUCT_LEN;
866 memcpy(bp, basename, basename_len);
868 #ifdef SUPPORT_HARD_LINKS
869 if (xflags & XMIT_HLINKED)
870 file->flags |= FLAG_HLINKED;
872 file->modtime = (time_t)modtime;
873 file->len32 = (uint32)file_length;
874 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
875 file->flags |= FLAG_LENGTH64;
876 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
883 file->flags |= gid_flags;
886 F_NDX(file) = flist->used + flist->ndx_start;
888 if (basename != thisname) {
889 file->dirname = lastdir;
890 F_DEPTH(file) = lastdir_depth + 1;
895 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
897 if (protocol_version >= 30) {
898 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
899 if (xflags & XMIT_TOP_DIR)
900 file->flags |= FLAG_TOP_DIR;
901 file->flags |= FLAG_CONTENT_DIR;
902 } else if (xflags & XMIT_TOP_DIR)
903 file->flags |= FLAG_IMPLIED_DIR;
904 } else if (xflags & XMIT_TOP_DIR) {
905 in_del_hier = recurse;
906 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
907 if (relative_paths && del_hier_name_len > 2
908 && lastname[del_hier_name_len-1] == '.'
909 && lastname[del_hier_name_len-2] == '/')
910 del_hier_name_len -= 2;
911 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
912 } else if (in_del_hier) {
913 if (!relative_paths || !del_hier_name_len
914 || (l1 >= del_hier_name_len
915 && lastname[del_hier_name_len] == '/'))
916 file->flags |= FLAG_CONTENT_DIR;
922 if ((preserve_devices && IS_DEVICE(mode))
923 || (preserve_specials && IS_SPECIAL(mode))) {
924 uint32 *devp = F_RDEV_P(file);
925 DEV_MAJOR(devp) = major(rdev);
926 DEV_MINOR(devp) = minor(rdev);
932 if (first_hlink_ndx >= flist->ndx_start) {
933 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
934 memcpy(bp, F_SYMLINK(first), linkname_len);
935 } else if (munge_symlinks) {
936 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
937 bp += SYMLINK_PREFIX_LEN;
938 linkname_len -= SYMLINK_PREFIX_LEN;
939 read_sbuf(f, bp, linkname_len - 1);
941 read_sbuf(f, bp, linkname_len - 1);
943 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
948 #ifdef SUPPORT_HARD_LINKS
949 if (preserve_hard_links && xflags & XMIT_HLINKED) {
950 if (protocol_version >= 30) {
951 if (xflags & XMIT_HLINK_FIRST) {
952 F_HL_GNUM(file) = flist->ndx_start + flist->used;
954 F_HL_GNUM(file) = first_hlink_ndx;
956 static int32 cnt = 0;
957 struct ht_int64_node *np;
960 if (protocol_version < 26) {
964 if (!(xflags & XMIT_SAME_DEV_pre30))
965 dev = read_longint(f);
966 ino = read_longint(f);
968 np = idev_find(dev, ino);
969 ndx = (int32)(long)np->data - 1;
972 np->data = (void*)(long)cnt;
974 F_HL_GNUM(file) = ndx;
979 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
983 /* Prior to 28, we get a useless set of nulls. */
986 if (first_hlink_ndx >= flist->ndx_start) {
987 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
988 memcpy(bp, F_SUM(first), checksum_len);
990 read_buf(f, bp, checksum_len);
994 if (preserve_acls && !S_ISLNK(mode))
995 receive_acl(file, f);
997 #ifdef SUPPORT_XATTRS
999 receive_xattr(file, f );
1002 if (S_ISREG(mode) || S_ISLNK(mode))
1003 stats.total_size += file_length;
1008 /* Create a file_struct for a named file by reading its stat() information
1009 * and performing extensive checks against global options.
1011 * Returns a pointer to the new file struct, or NULL if there was an error
1012 * or this file should be excluded. */
1013 struct file_struct *make_file(const char *fname, struct file_list *flist,
1014 STRUCT_STAT *stp, int flags, int filter_level)
1016 static char *lastdir;
1017 static int lastdir_len = -1;
1018 struct file_struct *file;
1019 char thisname[MAXPATHLEN];
1020 char linkname[MAXPATHLEN];
1021 int alloc_len, basename_len, linkname_len;
1022 int extra_len = file_extra_cnt * EXTRA_LEN;
1023 const char *basename;
1029 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1030 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1033 clean_fname(thisname, 0);
1035 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1037 if (stp && S_ISDIR(stp->st_mode)) {
1038 st = *stp; /* Needed for "symlink/." with --relative. */
1039 *linkname = '\0'; /* make IBM code checker happy */
1040 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1041 int save_errno = errno;
1042 /* See if file is excluded before reporting an error. */
1043 if (filter_level != NO_FILTERS
1044 && (is_excluded(thisname, 0, filter_level)
1045 || is_excluded(thisname, 1, filter_level))) {
1046 if (ignore_perishable && save_errno != ENOENT)
1047 non_perishable_cnt++;
1050 if (save_errno == ENOENT) {
1051 #ifdef SUPPORT_LINKS
1052 /* When our options tell us to follow a symlink that
1053 * points nowhere, tell the user about the symlink
1054 * instead of giving a "vanished" message. We only
1055 * dereference a symlink if one of the --copy*links
1056 * options was specified, so there's no need for the
1057 * extra lstat() if one of these options isn't on. */
1058 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1059 && x_lstat(thisname, &st, NULL) == 0
1060 && S_ISLNK(st.st_mode)) {
1061 io_error |= IOERR_GENERAL;
1062 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1063 full_fname(thisname));
1067 enum logcode c = am_daemon && protocol_version < 28
1068 ? FERROR : FWARNING;
1069 io_error |= IOERR_VANISHED;
1070 rprintf(c, "file has vanished: %s\n",
1071 full_fname(thisname));
1074 io_error |= IOERR_GENERAL;
1075 rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
1076 full_fname(thisname));
1081 /* backup.c calls us with filter_level set to NO_FILTERS. */
1082 if (filter_level == NO_FILTERS)
1085 if (S_ISDIR(st.st_mode)) {
1087 rprintf(FINFO, "skipping directory %s\n", thisname);
1090 /* -x only affects dirs because we need to avoid recursing
1091 * into a mount-point directory, not to avoid copying a
1092 * symlinked file if -L (or similar) was specified. */
1093 if (one_file_system && st.st_dev != filesystem_dev
1094 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1095 if (one_file_system > 1) {
1098 "[%s] skipping mount-point dir %s\n",
1099 who_am_i(), thisname);
1103 flags |= FLAG_MOUNT_DIR;
1104 flags &= ~FLAG_CONTENT_DIR;
1107 flags &= ~FLAG_CONTENT_DIR;
1109 if (S_ISDIR(st.st_mode)) {
1110 if (flags & FLAG_DOTDIR_NAME) {
1111 /* A "." fname (or "/." fname in relative mode) is
1112 * never excluded. No other trailing-dotdir names
1116 excl_ret = is_excluded(thisname, 1, filter_level);
1118 excl_ret = is_excluded(thisname, 0, filter_level);
1120 if (ignore_perishable)
1121 non_perishable_cnt++;
1125 if (lp_ignore_nonreadable(module_id)) {
1126 #ifdef SUPPORT_LINKS
1127 if (!S_ISLNK(st.st_mode))
1129 if (access(thisname, R_OK) != 0)
1135 /* Only divert a directory in the main transfer. */
1137 if (flist->prev && S_ISDIR(st.st_mode)
1138 && flags & FLAG_DIVERT_DIRS) {
1139 /* Room for parent/sibling/next-child info. */
1140 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1142 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1143 pool = dir_flist->file_pool;
1145 pool = flist->file_pool;
1148 /* Directories need an extra int32 for the default ACL. */
1149 if (preserve_acls && S_ISDIR(st.st_mode))
1150 extra_len += EXTRA_LEN;
1156 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1157 who_am_i(), thisname, filter_level);
1160 if ((basename = strrchr(thisname, '/')) != NULL) {
1161 int len = basename++ - thisname;
1162 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1163 lastdir = new_array(char, len + 1);
1164 memcpy(lastdir, thisname, len);
1165 lastdir[len] = '\0';
1169 basename = thisname;
1170 basename_len = strlen(basename) + 1; /* count the '\0' */
1172 #ifdef SUPPORT_LINKS
1173 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1178 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1179 extra_len += EXTRA_LEN;
1181 #if EXTRA_ROUNDING > 0
1182 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1183 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1186 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1189 bp = pool_alloc(pool, alloc_len, "make_file");
1191 if (!(bp = new_array(char, alloc_len)))
1192 out_of_memory("make_file");
1195 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1197 file = (struct file_struct *)bp;
1198 bp += FILE_STRUCT_LEN;
1200 memcpy(bp, basename, basename_len);
1202 #ifdef SUPPORT_HARD_LINKS
1203 if (preserve_hard_links && flist && flist->prev) {
1204 if (protocol_version >= 28
1205 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1206 : S_ISREG(st.st_mode)) {
1207 tmp_dev = st.st_dev;
1208 tmp_ino = st.st_ino;
1214 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1215 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1216 tmp_rdev = st.st_rdev;
1221 file->flags = flags;
1222 file->modtime = st.st_mtime;
1223 file->len32 = (uint32)st.st_size;
1224 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1225 file->flags |= FLAG_LENGTH64;
1226 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1228 file->mode = st.st_mode;
1229 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1230 F_OWNER(file) = st.st_uid;
1231 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1232 F_GROUP(file) = st.st_gid;
1234 if (basename != thisname)
1235 file->dirname = lastdir;
1237 #ifdef SUPPORT_LINKS
1239 memcpy(bp + basename_len, linkname, linkname_len);
1242 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1243 file_checksum(thisname, tmp_sum, st.st_size);
1246 F_PATHNAME(file) = pathname;
1248 F_DEPTH(file) = extra_len / EXTRA_LEN;
1250 /* This code is only used by the receiver when it is building
1251 * a list of files for a delete pass. */
1252 if (keep_dirlinks && linkname_len && flist) {
1254 int save_mode = file->mode;
1255 file->mode = S_IFDIR; /* Find a directory with our name. */
1256 if (flist_find(dir_flist, file) >= 0
1257 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1258 file->modtime = st2.st_mtime;
1260 file->mode = st2.st_mode;
1262 F_OWNER(file) = st2.st_uid;
1264 F_GROUP(file) = st2.st_gid;
1266 file->mode = save_mode;
1269 if (basename_len == 0+1) {
1276 F_NDX(file) = dir_count;
1281 /* Only called for temporary file_struct entries created by make_file(). */
1282 void unmake_file(struct file_struct *file)
1284 free(REQ_EXTRA(file, F_DEPTH(file)));
1287 static struct file_struct *send_file_name(int f, struct file_list *flist,
1288 const char *fname, STRUCT_STAT *stp,
1289 int flags, int filter_level)
1291 struct file_struct *file;
1293 file = make_file(fname, flist, stp, flags, filter_level);
1297 if (chmod_modes && !S_ISLNK(file->mode))
1298 file->mode = tweak_mode(file->mode, chmod_modes);
1301 char fbuf[MAXPATHLEN];
1302 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1307 if (ic_send != (iconv_t)-1) {
1310 INIT_CONST_XBUF(outbuf, fbuf);
1312 if (file->dirname) {
1313 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1314 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1315 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1318 outbuf.buf[outbuf.len++] = '/';
1321 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1322 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1324 io_error |= IOERR_GENERAL;
1326 "[%s] cannot convert filename: %s (%s)\n",
1327 who_am_i(), f_name(file, fbuf), strerror(errno));
1330 outbuf.buf[outbuf.len] = '\0';
1336 if (preserve_acls && !S_ISLNK(file->mode)) {
1337 sx.st.st_mode = file->mode;
1338 sx.acc_acl = sx.def_acl = NULL;
1339 if (get_acl(fname, &sx) < 0)
1343 #ifdef SUPPORT_XATTRS
1344 if (preserve_xattrs) {
1346 if (get_xattr(fname, &sx) < 0)
1351 send_file_entry(f, fbuf, file, flist->used, flist->ndx_start);
1354 if (preserve_acls && !S_ISLNK(file->mode)) {
1359 #ifdef SUPPORT_XATTRS
1360 if (preserve_xattrs) {
1361 F_XATTR(file) = send_xattr(&sx, f);
1367 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1369 flist_expand(flist, 1);
1370 flist->files[flist->used++] = file;
1375 static void send_if_directory(int f, struct file_list *flist,
1376 struct file_struct *file,
1377 char *fbuf, unsigned int ol,
1380 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1382 if (S_ISDIR(file->mode)
1383 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1385 unsigned int len = strlen(fbuf);
1386 if (len > 1 && fbuf[len-1] == '/')
1388 if (len >= MAXPATHLEN - 1) {
1389 io_error |= IOERR_GENERAL;
1390 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1394 save_filters = push_local_filters(fbuf, len);
1395 send_directory(f, flist, fbuf, len, flags);
1396 pop_local_filters(save_filters);
1403 static int file_compare(const void *file1, const void *file2)
1405 return f_name_cmp(*(struct file_struct **)file1,
1406 *(struct file_struct **)file2);
1409 /* The guts of a merge-sort algorithm. This was derived from the glibc
1410 * version, but I (Wayne) changed the merge code to do less copying and
1411 * to require only half the amount of temporary memory. */
1412 static void fsort_tmp(struct file_struct **fp, size_t num,
1413 struct file_struct **tmp)
1415 struct file_struct **f1, **f2, **t;
1424 fsort_tmp(f1, n1, tmp);
1426 fsort_tmp(f2, n2, tmp);
1428 while (f_name_cmp(*f1, *f2) <= 0) {
1435 memcpy(t, f1, n1 * PTR_SIZE);
1437 *f1++ = *f2++, n2--;
1439 while (n1 > 0 && n2 > 0) {
1440 if (f_name_cmp(*t, *f2) <= 0)
1443 *f1++ = *f2++, n2--;
1447 memcpy(f1, t, n1 * PTR_SIZE);
1450 /* This file-struct sorting routine makes sure that any identical names in
1451 * the file list stay in the same order as they were in the original list.
1452 * This is particularly vital in inc_recurse mode where we expect a sort
1453 * on the flist to match the exact order of a sort on the dir_flist. */
1454 static void fsort(struct file_struct **fp, size_t num)
1460 qsort(fp, num, PTR_SIZE, file_compare);
1462 struct file_struct **tmp = new_array(struct file_struct *,
1464 fsort_tmp(fp, num, tmp);
1469 /* We take an entire set of sibling dirs from the sorted flist and link them
1470 * into the tree, setting the appropriate parent/child/sibling pointers. */
1471 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1476 int32 *parent_dp = parent_ndx < 0 ? NULL
1477 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1479 flist_expand(dir_flist, dir_cnt);
1480 dir_flist->sorted = dir_flist->files;
1482 for (i = 0; dir_cnt; i++) {
1483 struct file_struct *file = from_flist->sorted[i];
1485 if (!S_ISDIR(file->mode))
1488 dir_flist->files[dir_flist->used++] = file;
1491 if (file->basename[0] == '.' && file->basename[1] == '\0')
1495 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1497 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1499 send_dir_ndx = dir_flist->used - 1;
1501 dp = F_DIR_NODE_P(file);
1502 DIR_PARENT(dp) = parent_ndx;
1503 DIR_FIRST_CHILD(dp) = -1;
1506 DIR_NEXT_SIBLING(dp) = -1;
1509 /* This function is normally called by the sender, but the receiving side also
1510 * calls it from get_dirlist() with f set to -1 so that we just construct the
1511 * file list in memory without sending it over the wire. Also, get_dirlist()
1512 * might call this with f set to -2, which also indicates that local filter
1513 * rules should be ignored. */
1514 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1521 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1522 int start = flist->used;
1523 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1525 assert(flist != NULL);
1527 if (!(d = opendir(fbuf))) {
1528 io_error |= IOERR_GENERAL;
1529 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1534 if (len != 1 || *fbuf != '/')
1537 remainder = MAXPATHLEN - (p - fbuf);
1539 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1540 char *dname = d_name(di);
1541 if (dname[0] == '.' && (dname[1] == '\0'
1542 || (dname[1] == '.' && dname[2] == '\0')))
1544 if (strlcpy(p, dname, remainder) >= remainder) {
1545 io_error |= IOERR_GENERAL;
1547 "cannot send long-named file %s\n",
1551 if (dname[0] == '\0') {
1552 io_error |= IOERR_GENERAL;
1554 "cannot send file with empty name in %s\n",
1559 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1565 io_error |= IOERR_GENERAL;
1566 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1571 if (f >= 0 && recurse && !divert_dirs) {
1572 int i, end = flist->used - 1;
1573 /* send_if_directory() bumps flist->used, so use "end". */
1574 for (i = start; i <= end; i++)
1575 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1579 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1580 char *start, char *limit, int flags, char name_type)
1582 static char lastpath[MAXPATHLEN] = "";
1583 static int lastpath_len = 0;
1584 static struct file_struct *lastpath_struct = NULL;
1585 struct file_struct *file;
1586 item_list *relname_list;
1587 relnamecache **rnpp;
1588 int len, need_new_dir, depth = 0;
1589 struct filter_list_struct save_filter_list = filter_list;
1591 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1592 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1595 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1596 && lastpath_len == limit - fname
1597 && strncmp(lastpath, fname, lastpath_len) == 0)
1602 char *tp = fname, *lp = lastpath;
1603 /* Skip any initial directories in our path that we
1604 * have in common with lastpath. */
1605 assert(start == fname);
1606 for ( ; ; tp++, lp++) {
1608 if (*lp == '/' || *lp == '\0')
1623 int save_copy_links = copy_links;
1624 int save_xfer_dirs = xfer_dirs;
1627 copy_links = xfer_dirs = 1;
1631 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1633 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1635 if (!inc_recurse && file && S_ISDIR(file->mode))
1636 change_local_filter_dir(fname, strlen(fname), depth);
1640 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1642 if (file && !S_ISDIR(file->mode))
1644 lastpath_struct = file;
1645 } else if (file && S_ISDIR(file->mode))
1646 change_local_filter_dir(fname, strlen(fname), ++depth);
1648 strlcpy(lastpath, fname, sizeof lastpath);
1649 lastpath_len = limit - fname;
1653 copy_links = save_copy_links;
1654 xfer_dirs = save_xfer_dirs;
1660 if (!lastpath_struct)
1661 goto done; /* dir must have vanished */
1663 len = strlen(limit+1);
1664 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1665 if (!relname_list) {
1666 if (!(relname_list = new0(item_list)))
1667 out_of_memory("send_implied_dirs");
1668 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1670 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1671 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1672 out_of_memory("send_implied_dirs");
1673 (*rnpp)->name_type = name_type;
1674 strlcpy((*rnpp)->fname, limit+1, len + 1);
1677 filter_list = save_filter_list;
1680 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1682 char fbuf[MAXPATHLEN];
1683 item_list *relname_list;
1684 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1688 dlen = strlen(fbuf);
1690 if (!change_pathname(file, NULL, 0))
1691 exit_cleanup(RERR_FILESELECT);
1693 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1695 if (file->flags & FLAG_CONTENT_DIR) {
1696 if (one_file_system) {
1698 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1699 io_error |= IOERR_GENERAL;
1700 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1704 filesystem_dev = st.st_dev;
1706 send_directory(f, flist, fbuf, dlen, flags);
1709 if (!relative_paths)
1712 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1716 for (j = 0; j < relname_list->count; j++) {
1718 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1719 char name_type = rnp->name_type;
1722 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1724 if (len >= (int)sizeof fbuf)
1725 continue; /* Impossible... */
1727 slash = strchr(fbuf+dlen+1, '/');
1729 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1733 if (name_type != NORMAL_NAME) {
1735 if (link_stat(fbuf, &st, 1) != 0) {
1736 io_error |= IOERR_GENERAL;
1737 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1741 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1743 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1749 void send_extra_file_list(int f, int at_least)
1751 struct file_list *flist;
1754 int old_cnt, save_io_error = io_error;
1759 /* Keep sending data until we have the requested number of
1760 * files in the upcoming file-lists. */
1761 old_cnt = cur_flist->used;
1762 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1763 old_cnt += flist->used;
1764 while (file_total - old_cnt < at_least) {
1765 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1766 int dir_ndx, dstart = dir_count;
1767 const char *pathname = F_PATHNAME(file);
1770 flist = flist_new(0, "send_extra_file_list");
1771 start_write = stats.total_written;
1774 dir_ndx = F_NDX(file);
1776 dir_ndx = send_dir_ndx;
1777 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1778 flist->parent_ndx = dir_ndx;
1780 send1extra(f, file, flist);
1781 prev_flags = file->flags;
1782 dp = F_DIR_NODE_P(file);
1784 /* If there are any duplicate directory names that follow, we
1785 * send all the dirs together in one file-list. The dir_flist
1786 * tree links all the child subdirs onto the last dup dir. */
1787 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1788 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1789 send_dir_ndx = dir_ndx;
1790 file = dir_flist->sorted[dir_ndx];
1791 /* Try to avoid some duplicate scanning of identical dirs. */
1792 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1793 file->flags &= ~FLAG_CONTENT_DIR;
1794 send1extra(f, file, flist);
1795 prev_flags = file->flags;
1796 dp = F_DIR_NODE_P(file);
1801 if (need_unsorted_flist) {
1802 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1803 out_of_memory("send_extra_file_list");
1804 memcpy(flist->sorted, flist->files,
1805 flist->used * sizeof (struct file_struct*));
1807 flist->sorted = flist->files;
1809 flist_sort_and_clean(flist, 0);
1811 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1812 flist_done_allocating(flist);
1814 file_total += flist->used;
1815 stats.flist_size += stats.total_written - start_write;
1816 stats.num_files += flist->used;
1818 output_flist(flist);
1820 if (DIR_FIRST_CHILD(dp) >= 0) {
1821 send_dir_ndx = DIR_FIRST_CHILD(dp);
1824 while (DIR_NEXT_SIBLING(dp) < 0) {
1825 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1826 write_ndx(f, NDX_FLIST_EOF);
1828 change_local_filter_dir(NULL, 0, 0);
1832 file = dir_flist->sorted[send_dir_ndx];
1833 dp = F_DIR_NODE_P(file);
1835 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1840 if (io_error != save_io_error && !ignore_errors)
1841 send_msg_int(MSG_IO_ERROR, io_error);
1844 struct file_list *send_file_list(int f, int argc, char *argv[])
1846 static const char *lastdir;
1847 static int lastdir_len = -1;
1851 struct file_list *flist;
1852 struct timeval start_tv, end_tv;
1855 int disable_buffering;
1856 int arg_flags, flags = recurse ? FLAG_CONTENT_DIR : 0;
1857 int reading_remotely = filesfrom_host != NULL;
1858 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1860 | (filesfrom_convert ? RL_CONVERT : 0)
1862 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1863 int implied_dot_dir = 0;
1865 rprintf(FLOG, "building file list\n");
1866 if (show_filelist_p())
1867 start_filelist_progress("building file list");
1868 else if (inc_recurse && verbose && !am_server)
1869 rprintf(FCLIENT, "sending incremental file list\n");
1871 start_write = stats.total_written;
1872 gettimeofday(&start_tv, NULL);
1875 orig_dir = strdup(curr_dir);
1877 if (relative_paths && protocol_version >= 30)
1878 implied_dirs = 1; /* We send flagged implied dirs */
1880 #ifdef SUPPORT_HARD_LINKS
1881 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1885 flist = cur_flist = flist_new(0, "send_file_list");
1887 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1888 flags |= FLAG_DIVERT_DIRS;
1890 dir_flist = cur_flist;
1892 disable_buffering = io_start_buffering_out(f);
1893 if (filesfrom_fd >= 0) {
1894 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
1895 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
1896 full_fname(argv[0]));
1897 exit_cleanup(RERR_FILESELECT);
1903 char fbuf[MAXPATHLEN], *fn, name_type;
1906 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1908 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1912 strlcpy(fbuf, *argv++, MAXPATHLEN);
1914 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1918 if (relative_paths) {
1919 /* We clean up fbuf below. */
1920 name_type = NORMAL_NAME;
1921 } else if (!len || fbuf[len - 1] == '/') {
1922 if (len == 2 && fbuf[0] == '.') {
1923 /* Turn "./" into just "." rather than "./." */
1926 if (len + 1 >= MAXPATHLEN)
1927 overflow_exit("send_file_list");
1931 name_type = DOTDIR_NAME;
1932 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1933 && (len == 2 || fbuf[len-3] == '/')) {
1934 if (len + 2 >= MAXPATHLEN)
1935 overflow_exit("send_file_list");
1939 name_type = DOTDIR_NAME;
1940 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
1941 name_type = DOTDIR_NAME;
1943 name_type = NORMAL_NAME;
1947 if (!relative_paths) {
1948 p = strrchr(fbuf, '/');
1955 len -= p - fbuf + 1;
1960 if ((p = strstr(fbuf, "/./")) != NULL) {
1966 clean_fname(dir, 0);
1972 *--fn = '\0'; /* ensure room for '.' */
1975 /* A leading ./ can be used in relative mode to affect
1976 * the dest dir without its name being in the path. */
1977 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
1978 send_file_name(f, flist, ".", NULL,
1979 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
1981 implied_dot_dir = 1;
1983 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
1984 | CFN_DROP_TRAILING_DOT_DIR);
1989 name_type = DOTDIR_NAME;
1990 } else if (fn[0] == '.')
1991 name_type = DOTDIR_NAME;
1992 } else if (fn[len-1] == '/') {
1994 if (len == 1 && *fn == '.')
1995 name_type = DOTDIR_NAME;
1997 name_type = SLASH_ENDING_NAME;
1999 /* Reject a ".." dir in the active part of the path. */
2000 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2001 if ((p[2] == '/' || p[2] == '\0')
2002 && (p == fn || p[-1] == '/')) {
2004 "found \"..\" dir in relative path: %s\n",
2006 exit_cleanup(RERR_SYNTAX);
2014 name_type = DOTDIR_NAME;
2017 dirlen = dir ? strlen(dir) : 0;
2018 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2019 if (!change_pathname(NULL, dir, -dirlen))
2022 lastdir_len = pathname_len;
2023 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2027 memmove(fbuf, fn, len + 1);
2029 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2030 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2031 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2032 io_error |= IOERR_GENERAL;
2033 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2038 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2039 rprintf(FINFO, "skipping directory %s\n", fbuf);
2043 if (inc_recurse && relative_paths && *fbuf) {
2044 if ((p = strchr(fbuf+1, '/')) != NULL) {
2045 if (p - fbuf == 1 && *fbuf == '.') {
2046 if ((fn = strchr(p+1, '/')) != NULL)
2050 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2054 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2055 /* Send the implied directories at the start of the
2056 * source spec, so we get their permissions right. */
2057 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2060 if (one_file_system)
2061 filesystem_dev = st.st_dev;
2063 arg_flags = name_type == DOTDIR_NAME ? FLAG_DOTDIR_NAME : 0;
2065 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2066 struct file_struct *file;
2067 arg_flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
2068 file = send_file_name(f, flist, fbuf, &st,
2069 arg_flags | flags, ALL_FILTERS);
2073 if (name_type == DOTDIR_NAME) {
2074 if (send_dir_depth < 0) {
2076 change_local_filter_dir(fbuf, len, send_dir_depth);
2078 send_directory(f, flist, fbuf, len, flags);
2081 send_if_directory(f, flist, file, fbuf, len, flags);
2083 send_file_name(f, flist, fbuf, &st, arg_flags | flags, ALL_FILTERS);
2086 gettimeofday(&end_tv, NULL);
2087 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2088 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2089 if (stats.flist_buildtime == 0)
2090 stats.flist_buildtime = 1;
2093 write_byte(f, 0); /* Indicate end of file list */
2095 #ifdef SUPPORT_HARD_LINKS
2096 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2100 if (show_filelist_p())
2101 finish_filelist_progress(flist);
2103 gettimeofday(&end_tv, NULL);
2104 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2105 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2107 /* When converting names, both sides keep an unsorted file-list array
2108 * because the names will differ on the sending and receiving sides
2109 * (both sides will use the unsorted index number for each item). */
2111 /* Sort the list without removing any duplicates. This allows the
2112 * receiving side to ask for whatever name it kept. For incremental
2113 * recursion mode, the sender marks duplicate dirs so that it can
2114 * send them together in a single file-list. */
2115 if (need_unsorted_flist) {
2116 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2117 out_of_memory("send_file_list");
2118 memcpy(flist->sorted, flist->files,
2119 flist->used * sizeof (struct file_struct*));
2121 flist->sorted = flist->files;
2122 flist_sort_and_clean(flist, 0);
2123 file_total += flist->used;
2125 if (numeric_ids <= 0 && !inc_recurse)
2128 /* send the io_error flag */
2129 if (protocol_version < 30)
2130 write_int(f, ignore_errors ? 0 : io_error);
2131 else if (io_error && !ignore_errors)
2132 send_msg_int(MSG_IO_ERROR, io_error);
2134 if (disable_buffering)
2135 io_end_buffering_out();
2137 stats.flist_size = stats.total_written - start_write;
2138 stats.num_files = flist->used;
2141 output_flist(flist);
2144 rprintf(FINFO, "send_file_list done\n");
2148 add_dirs_to_tree(-1, flist, dir_count);
2149 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2150 flist->parent_ndx = -1;
2151 flist_done_allocating(flist);
2152 if (send_dir_ndx < 0) {
2153 write_ndx(f, NDX_FLIST_EOF);
2156 else if (file_total == 1) {
2157 /* If we're creating incremental file-lists and there
2158 * was just 1 item in the first file-list, send 1 more
2159 * file-list to check if this is a 1-file xfer. */
2160 send_extra_file_list(f, 1);
2167 struct file_list *recv_file_list(int f)
2169 struct file_list *flist;
2174 rprintf(FLOG, "receiving file list\n");
2175 if (show_filelist_p())
2176 start_filelist_progress("receiving file list");
2177 else if (inc_recurse && verbose && !am_server && !first_flist)
2178 rprintf(FCLIENT, "receiving incremental file list\n");
2180 start_read = stats.total_read;
2182 #ifdef SUPPORT_HARD_LINKS
2183 if (preserve_hard_links && !first_flist)
2187 flist = flist_new(0, "recv_file_list");
2190 if (flist->ndx_start == 1)
2191 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2192 dstart = dir_flist->used;
2198 while ((flags = read_byte(f)) != 0) {
2199 struct file_struct *file;
2201 flist_expand(flist, 1);
2203 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2204 flags |= read_byte(f) << 8;
2205 file = recv_file_entry(flist, flags, f);
2207 if (inc_recurse && S_ISDIR(file->mode)) {
2208 flist_expand(dir_flist, 1);
2209 dir_flist->files[dir_flist->used++] = file;
2212 flist->files[flist->used++] = file;
2214 maybe_emit_filelist_progress(flist->used);
2217 rprintf(FINFO, "recv_file_name(%s)\n",
2218 f_name(file, NULL));
2221 file_total += flist->used;
2224 rprintf(FINFO, "received %d names\n", flist->used);
2226 if (show_filelist_p())
2227 finish_filelist_progress(flist);
2229 if (need_unsorted_flist) {
2230 /* Create an extra array of index pointers that we can sort for
2231 * the generator's use (for wading through the files in sorted
2232 * order and for calling flist_find()). We keep the "files"
2233 * list unsorted for our exchange of index numbers with the
2234 * other side (since their names may not sort the same). */
2235 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2236 out_of_memory("recv_file_list");
2237 memcpy(flist->sorted, flist->files,
2238 flist->used * sizeof (struct file_struct*));
2239 if (inc_recurse && dir_flist->used > dstart) {
2240 static int dir_flist_malloced = 0;
2241 if (dir_flist_malloced < dir_flist->malloced) {
2242 dir_flist->sorted = realloc_array(dir_flist->sorted,
2243 struct file_struct *,
2244 dir_flist->malloced);
2245 dir_flist_malloced = dir_flist->malloced;
2247 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2248 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2249 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2252 flist->sorted = flist->files;
2253 if (inc_recurse && dir_flist->used > dstart) {
2254 dir_flist->sorted = dir_flist->files;
2255 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2260 flist_done_allocating(flist);
2262 recv_id_list(f, flist);
2264 flist_sort_and_clean(flist, relative_paths);
2266 if (protocol_version < 30) {
2267 /* Recv the io_error flag */
2271 io_error |= read_int(f);
2272 } else if (inc_recurse && flist->ndx_start == 1) {
2273 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2274 flist->parent_ndx = -1;
2278 output_flist(flist);
2281 rprintf(FINFO, "recv_file_list done\n");
2283 stats.flist_size += stats.total_read - start_read;
2284 stats.num_files += flist->used;
2289 /* This is only used once by the receiver if the very first file-list
2290 * has exactly one item in it. */
2291 void recv_additional_file_list(int f)
2293 struct file_list *flist;
2294 int ndx = read_ndx(f);
2295 if (ndx == NDX_FLIST_EOF) {
2297 change_local_filter_dir(NULL, 0, 0);
2299 ndx = NDX_FLIST_OFFSET - ndx;
2300 if (ndx < 0 || ndx >= dir_flist->used) {
2301 ndx = NDX_FLIST_OFFSET - ndx;
2303 "[%s] Invalid dir index: %d (%d - %d)\n",
2304 who_am_i(), ndx, NDX_FLIST_OFFSET,
2305 NDX_FLIST_OFFSET - dir_flist->used + 1);
2306 exit_cleanup(RERR_PROTOCOL);
2309 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2312 flist = recv_file_list(f);
2313 flist->parent_ndx = ndx;
2317 /* Search for an identically-named item in the file list. Note that the
2318 * items must agree in their directory-ness, or no match is returned. */
2319 int flist_find(struct file_list *flist, struct file_struct *f)
2321 int low = flist->low, high = flist->high;
2322 int diff, mid, mid_up;
2324 while (low <= high) {
2325 mid = (low + high) / 2;
2326 if (F_IS_ACTIVE(flist->sorted[mid]))
2329 /* Scan for the next non-empty entry using the cached
2330 * distance values. If the value isn't fully up-to-
2331 * date, update it. */
2332 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2333 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2335 mid_up += F_DEPTH(flist->sorted[mid_up]);
2336 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2337 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2339 if (mid_up > high) {
2340 /* If there's nothing left above us, set high to
2341 * a non-empty entry below us and continue. */
2342 high = mid - (int)flist->sorted[mid]->len32;
2343 if (!F_IS_ACTIVE(flist->sorted[high])) {
2345 high -= (int)flist->sorted[high]->len32;
2346 } while (!F_IS_ACTIVE(flist->sorted[high]));
2347 flist->sorted[mid]->len32 = mid - high;
2352 diff = f_name_cmp(flist->sorted[mid_up], f);
2354 if (protocol_version < 29
2355 && S_ISDIR(flist->sorted[mid_up]->mode)
2356 != S_ISDIR(f->mode))
2369 * Free up any resources a file_struct has allocated
2370 * and clear the file.
2372 void clear_file(struct file_struct *file)
2374 /* The +1 zeros out the first char of the basename. */
2375 memset(file, 0, FILE_STRUCT_LEN + 1);
2376 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2377 * entry. Likewise for len32 in the opposite direction. We assume
2378 * that we're alone for now since flist_find() will adjust the counts
2379 * it runs into that aren't up-to-date. */
2380 file->len32 = F_DEPTH(file) = 1;
2383 /* Allocate a new file list. */
2384 struct file_list *flist_new(int flags, char *msg)
2386 struct file_list *flist;
2388 if (!(flist = new0(struct file_list)))
2391 if (flags & FLIST_TEMP) {
2392 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2393 out_of_memory, POOL_INTERN)))
2396 /* This is a doubly linked list with prev looping back to
2397 * the end of the list, but the last next pointer is NULL. */
2399 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2400 out_of_memory, POOL_INTERN);
2401 if (!flist->file_pool)
2404 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2406 first_flist = cur_flist = flist->prev = flist;
2408 struct file_list *prev = first_flist->prev;
2410 flist->file_pool = first_flist->file_pool;
2412 flist->ndx_start = prev->ndx_start + prev->used + 1;
2413 flist->flist_num = prev->flist_num + 1;
2416 prev->next = first_flist->prev = flist;
2418 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2425 /* Free up all elements in a flist. */
2426 void flist_free(struct file_list *flist)
2429 /* Was FLIST_TEMP dir-list. */
2430 } else if (flist == flist->prev) {
2431 first_flist = cur_flist = NULL;
2435 if (flist == cur_flist)
2436 cur_flist = flist->next;
2437 if (flist == first_flist)
2438 first_flist = first_flist->next;
2440 flist->prev->next = flist->next;
2442 flist->next = first_flist;
2444 flist->next->prev = flist->prev;
2445 file_total -= flist->used;
2449 if (!flist->prev || !flist_cnt)
2450 pool_destroy(flist->file_pool);
2452 pool_free_old(flist->file_pool, flist->pool_boundary);
2454 if (flist->sorted && flist->sorted != flist->files)
2455 free(flist->sorted);
2460 /* This routine ensures we don't have any duplicate names in our file list.
2461 * duplicate names can cause corruption because of the pipelining. */
2462 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2464 char fbuf[MAXPATHLEN];
2469 if (flist->used == 0) {
2475 fsort(flist->sorted, flist->used);
2477 if (!am_sender || inc_recurse) {
2478 for (i = prev_i = 0; i < flist->used; i++) {
2479 if (F_IS_ACTIVE(flist->sorted[i])) {
2484 flist->low = prev_i;
2486 i = prev_i = flist->used - 1;
2490 while (++i < flist->used) {
2492 struct file_struct *file = flist->sorted[i];
2494 if (!F_IS_ACTIVE(file))
2496 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2498 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2499 int save_mode = file->mode;
2500 /* Make sure that this directory doesn't duplicate a
2501 * non-directory earlier in the list. */
2502 flist->high = prev_i;
2503 file->mode = S_IFREG;
2504 j = flist_find(flist, file);
2505 file->mode = save_mode;
2510 /* If one is a dir and the other is not, we want to
2511 * keep the dir because it might have contents in the
2512 * list. Otherwise keep the first one. */
2513 if (S_ISDIR(file->mode)) {
2514 struct file_struct *fp = flist->sorted[j];
2515 if (!S_ISDIR(fp->mode))
2519 file->flags |= FLAG_DUPLICATE;
2520 else { /* Make sure we merge our vital flags. */
2521 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2522 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2532 "removing duplicate name %s from file list (%d)\n",
2533 f_name(file, fbuf), drop + flist->ndx_start);
2535 clear_file(flist->sorted[drop]);
2539 if (flist->low == drop) {
2541 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2550 flist->high = prev_i;
2553 /* We need to strip off the leading slashes for relative
2554 * paths, but this must be done _after_ the sorting phase. */
2555 for (i = flist->low; i <= flist->high; i++) {
2556 struct file_struct *file = flist->sorted[i];
2560 while (*file->dirname == '/')
2562 if (!*file->dirname)
2563 file->dirname = NULL;
2567 if (prune_empty_dirs && !am_sender) {
2568 int j, prev_depth = 0;
2570 prev_i = 0; /* It's OK that this isn't really true. */
2572 for (i = flist->low; i <= flist->high; i++) {
2573 struct file_struct *fp, *file = flist->sorted[i];
2575 /* This temporarily abuses the F_DEPTH() value for a
2576 * directory that is in a chain that might get pruned.
2577 * We restore the old value if it gets a reprieve. */
2578 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2579 /* Dump empty dirs when coming back down. */
2580 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2581 fp = flist->sorted[prev_i];
2582 if (F_DEPTH(fp) >= 0)
2584 prev_i = -F_DEPTH(fp)-1;
2587 prev_depth = F_DEPTH(file);
2588 if (is_excluded(f_name(file, fbuf), 1,
2590 /* Keep dirs through this dir. */
2591 for (j = prev_depth-1; ; j--) {
2592 fp = flist->sorted[prev_i];
2593 if (F_DEPTH(fp) >= 0)
2595 prev_i = -F_DEPTH(fp)-1;
2599 F_DEPTH(file) = -prev_i-1;
2602 /* Keep dirs through this non-dir. */
2603 for (j = prev_depth; ; j--) {
2604 fp = flist->sorted[prev_i];
2605 if (F_DEPTH(fp) >= 0)
2607 prev_i = -F_DEPTH(fp)-1;
2612 /* Dump all remaining empty dirs. */
2614 struct file_struct *fp = flist->sorted[prev_i];
2615 if (F_DEPTH(fp) >= 0)
2617 prev_i = -F_DEPTH(fp)-1;
2621 for (i = flist->low; i <= flist->high; i++) {
2622 if (F_IS_ACTIVE(flist->sorted[i]))
2626 for (i = flist->high; i >= flist->low; i--) {
2627 if (F_IS_ACTIVE(flist->sorted[i]))
2634 static void output_flist(struct file_list *flist)
2636 char uidbuf[16], gidbuf[16], depthbuf[16];
2637 struct file_struct *file;
2638 const char *root, *dir, *slash, *name, *trail;
2639 const char *who = who_am_i();
2642 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2643 who, flist->ndx_start, flist->used, flist->low, flist->high);
2644 for (i = 0; i < flist->used; i++) {
2645 file = flist->files[i];
2646 if ((am_root || am_sender) && uid_ndx) {
2647 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2652 static char parens[] = "(\0)\0\0\0";
2653 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2654 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2655 pp, F_GROUP(file), pp + 2);
2659 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2660 if (F_IS_ACTIVE(file)) {
2661 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2662 if ((dir = file->dirname) == NULL)
2666 name = file->basename;
2667 trail = S_ISDIR(file->mode) ? "/" : "";
2669 root = dir = slash = name = trail = "";
2671 "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
2672 who, i + flist->ndx_start,
2673 root, dir, slash, name, trail,
2674 (int)file->mode, (double)F_LENGTH(file),
2675 uidbuf, gidbuf, file->flags);
2679 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2680 enum fnc_type { t_PATH, t_ITEM };
2682 static int found_prefix;
2684 /* Compare the names of two file_struct entities, similar to how strcmp()
2685 * would do if it were operating on the joined strings.
2687 * Some differences beginning with protocol_version 29: (1) directory names
2688 * are compared with an assumed trailing slash so that they compare in a
2689 * way that would cause them to sort immediately prior to any content they
2690 * may have; (2) a directory of any name compares after a non-directory of
2691 * any name at the same depth; (3) a directory with name "." compares prior
2692 * to anything else. These changes mean that a directory and a non-dir
2693 * with the same name will not compare as equal (protocol_version >= 29).
2695 * The dirname component can be an empty string, but the basename component
2696 * cannot (and never is in the current codebase). The basename component
2697 * may be NULL (for a removed item), in which case it is considered to be
2698 * after any existing item. */
2699 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2702 const uchar *c1, *c2;
2703 enum fnc_state state1, state2;
2704 enum fnc_type type1, type2;
2705 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2707 if (!f1 || !F_IS_ACTIVE(f1)) {
2708 if (!f2 || !F_IS_ACTIVE(f2))
2712 if (!f2 || !F_IS_ACTIVE(f2))
2715 c1 = (uchar*)f1->dirname;
2716 c2 = (uchar*)f2->dirname;
2720 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2721 c1 = (const uchar*)f1->basename;
2722 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2724 state1 = s_TRAILING;
2733 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2734 c2 = (const uchar*)f2->basename;
2735 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2737 state2 = s_TRAILING;
2747 return type1 == t_PATH ? 1 : -1;
2757 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2758 c1 = (const uchar*)f1->basename;
2759 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2761 state1 = s_TRAILING;
2767 state1 = s_TRAILING;
2768 if (type1 == t_PATH) {
2777 if (*c2 && type1 != type2)
2778 return type1 == t_PATH ? 1 : -1;
2787 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2788 c2 = (const uchar*)f2->basename;
2789 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2791 state2 = s_TRAILING;
2797 state2 = s_TRAILING;
2798 if (type2 == t_PATH) {
2811 return type1 == t_PATH ? 1 : -1;
2813 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2818 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2819 * not match if f2's basename is not an exact match of a path element in f1.
2820 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2821 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2825 return found_prefix;
2828 char *f_name_buf(void)
2830 static char names[5][MAXPATHLEN];
2831 static unsigned int n;
2833 n = (n + 1) % (sizeof names / sizeof names[0]);
2838 /* Return a copy of the full filename of a flist entry, using the indicated
2839 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2840 * done because we checked the size when creating the file_struct entry.
2842 char *f_name(const struct file_struct *f, char *fbuf)
2844 if (!f || !F_IS_ACTIVE(f))
2848 fbuf = f_name_buf();
2851 int len = strlen(f->dirname);
2852 memcpy(fbuf, f->dirname, len);
2854 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2856 strlcpy(fbuf, f->basename, MAXPATHLEN);
2861 /* Do a non-recursive scan of the named directory, possibly ignoring all
2862 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2863 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2864 * buffer (the functions we call will append names onto the end, but the old
2865 * dir value will be restored on exit). */
2866 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2868 struct file_list *dirlist;
2869 char dirbuf[MAXPATHLEN];
2870 int save_recurse = recurse;
2871 int save_xfer_dirs = xfer_dirs;
2872 int save_prune_empty_dirs = prune_empty_dirs;
2875 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2876 if (dlen >= MAXPATHLEN)
2881 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2885 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2886 xfer_dirs = save_xfer_dirs;
2887 recurse = save_recurse;
2889 flist_count_offset += dirlist->used;
2891 prune_empty_dirs = 0;
2892 dirlist->sorted = dirlist->files;
2893 flist_sort_and_clean(dirlist, 0);
2894 prune_empty_dirs = save_prune_empty_dirs;
2897 output_flist(dirlist);