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);
369 if (!change_dir(dir ? dir : orig_dir, CD_NORMAL)) {
371 io_error |= IOERR_GENERAL;
372 rsyserr(FERROR, errno, "change_dir %s failed", full_fname(dir));
373 change_dir(orig_dir, CD_NORMAL);
380 pathname_len = dirlen;
385 static void send_file_entry(int f, const char *fname, struct file_struct *file, int ndx, int first_ndx)
387 static time_t modtime;
389 #ifdef SUPPORT_HARD_LINKS
393 static uint32 rdev_major;
396 static const char *user_name, *group_name;
397 static char lastname[MAXPATHLEN];
398 int first_hlink_ndx = -1;
402 /* Initialize starting value of xflags. */
403 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
405 if (file->flags & FLAG_CONTENT_DIR)
406 xflags = file->flags & FLAG_TOP_DIR;
407 else if (file->flags & FLAG_IMPLIED_DIR)
408 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
410 xflags = XMIT_NO_CONTENT_DIR;
412 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
414 if (file->mode == mode)
415 xflags |= XMIT_SAME_MODE;
419 if ((preserve_devices && IS_DEVICE(mode))
420 || (preserve_specials && IS_SPECIAL(mode))) {
421 if (protocol_version < 28) {
422 if (tmp_rdev == rdev)
423 xflags |= XMIT_SAME_RDEV_pre28;
428 if ((uint32)major(rdev) == rdev_major)
429 xflags |= XMIT_SAME_RDEV_MAJOR;
431 rdev_major = major(rdev);
432 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
433 xflags |= XMIT_RDEV_MINOR_8_pre30;
435 } else if (protocol_version < 28)
436 rdev = MAKEDEV(0, 0);
437 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
438 xflags |= XMIT_SAME_UID;
442 user_name = add_uid(uid);
443 if (inc_recurse && user_name)
444 xflags |= XMIT_USER_NAME_FOLLOWS;
447 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
448 xflags |= XMIT_SAME_GID;
452 group_name = add_gid(gid);
453 if (inc_recurse && group_name)
454 xflags |= XMIT_GROUP_NAME_FOLLOWS;
457 if (file->modtime == modtime)
458 xflags |= XMIT_SAME_TIME;
460 modtime = file->modtime;
462 #ifdef SUPPORT_HARD_LINKS
464 if (protocol_version >= 30) {
465 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
466 first_hlink_ndx = (int32)(long)np->data - 1;
467 if (first_hlink_ndx < 0) {
468 np->data = (void*)(long)(first_ndx + ndx + 1);
469 xflags |= XMIT_HLINK_FIRST;
472 if (tmp_dev == dev) {
473 if (protocol_version >= 28)
474 xflags |= XMIT_SAME_DEV_pre30;
478 xflags |= XMIT_HLINKED;
483 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
485 l2 = strlen(fname+l1);
488 xflags |= XMIT_SAME_NAME;
490 xflags |= XMIT_LONG_NAME;
492 /* We must make sure we don't send a zero flag byte or the
493 * other end will terminate the flist transfer. Note that
494 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
495 * it's harmless way to add a bit to the first flag byte. */
496 if (protocol_version >= 28) {
497 if (!xflags && !S_ISDIR(mode))
498 xflags |= XMIT_TOP_DIR;
499 if ((xflags & 0xFF00) || !xflags) {
500 xflags |= XMIT_EXTENDED_FLAGS;
501 write_shortint(f, xflags);
503 write_byte(f, xflags);
505 if (!(xflags & 0xFF))
506 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
507 write_byte(f, xflags);
509 if (xflags & XMIT_SAME_NAME)
511 if (xflags & XMIT_LONG_NAME)
512 write_varint30(f, l2);
515 write_buf(f, fname + l1, l2);
517 if (first_hlink_ndx >= 0) {
518 write_varint(f, first_hlink_ndx);
519 if (first_hlink_ndx >= first_ndx)
523 write_varlong30(f, F_LENGTH(file), 3);
524 if (!(xflags & XMIT_SAME_TIME)) {
525 if (protocol_version >= 30)
526 write_varlong(f, modtime, 4);
528 write_int(f, modtime);
530 if (!(xflags & XMIT_SAME_MODE))
531 write_int(f, to_wire_mode(mode));
532 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
533 if (protocol_version < 30)
536 write_varint(f, uid);
537 if (xflags & XMIT_USER_NAME_FOLLOWS) {
538 int len = strlen(user_name);
540 write_buf(f, user_name, len);
544 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
545 if (protocol_version < 30)
548 write_varint(f, gid);
549 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
550 int len = strlen(group_name);
552 write_buf(f, group_name, len);
556 if ((preserve_devices && IS_DEVICE(mode))
557 || (preserve_specials && IS_SPECIAL(mode))) {
558 if (protocol_version < 28) {
559 if (!(xflags & XMIT_SAME_RDEV_pre28))
560 write_int(f, (int)rdev);
562 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
563 write_varint30(f, major(rdev));
564 if (protocol_version >= 30)
565 write_varint(f, minor(rdev));
566 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
567 write_byte(f, minor(rdev));
569 write_int(f, minor(rdev));
574 if (preserve_links && S_ISLNK(mode)) {
575 const char *sl = F_SYMLINK(file);
576 int len = strlen(sl);
577 write_varint30(f, len);
578 write_buf(f, sl, len);
582 #ifdef SUPPORT_HARD_LINKS
583 if (tmp_dev != 0 && protocol_version < 30) {
584 if (protocol_version < 26) {
585 /* 32-bit dev_t and ino_t */
586 write_int(f, (int32)dev);
587 write_int(f, (int32)tmp_ino);
589 /* 64-bit dev_t and ino_t */
590 if (!(xflags & XMIT_SAME_DEV_pre30))
591 write_longint(f, dev);
592 write_longint(f, tmp_ino);
597 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
602 /* Prior to 28, we sent a useless set of nulls. */
605 write_buf(f, sum, checksum_len);
609 strlcpy(lastname, fname, MAXPATHLEN);
611 if (S_ISREG(mode) || S_ISLNK(mode))
612 stats.total_size += F_LENGTH(file);
615 static struct file_struct *recv_file_entry(struct file_list *flist,
618 static int64 modtime;
620 #ifdef SUPPORT_HARD_LINKS
624 static uint32 rdev_major;
627 static uint16 gid_flags;
628 static char lastname[MAXPATHLEN], *lastdir;
629 static int lastdir_depth, lastdir_len = -1;
630 static unsigned int del_hier_name_len = 0;
631 static int in_del_hier = 0;
632 char thisname[MAXPATHLEN];
633 unsigned int l1 = 0, l2 = 0;
634 int alloc_len, basename_len, linkname_len;
635 int extra_len = file_extra_cnt * EXTRA_LEN;
636 int first_hlink_ndx = -1;
638 const char *basename;
639 struct file_struct *file;
643 if (xflags & XMIT_SAME_NAME)
646 if (xflags & XMIT_LONG_NAME)
647 l2 = read_varint30(f);
651 if (l2 >= MAXPATHLEN - l1) {
653 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
654 xflags, l1, l2, lastname, who_am_i());
655 overflow_exit("recv_file_entry");
658 strlcpy(thisname, lastname, l1 + 1);
659 read_sbuf(f, &thisname[l1], l2);
660 thisname[l1 + l2] = 0;
662 /* Abuse basename_len for a moment... */
663 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
666 if (ic_recv != (iconv_t)-1) {
669 INIT_CONST_XBUF(outbuf, thisname);
670 INIT_XBUF(inbuf, lastname, basename_len, -1);
672 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
673 io_error |= IOERR_GENERAL;
675 "[%s] cannot convert filename: %s (%s)\n",
676 who_am_i(), lastname, strerror(errno));
679 outbuf.buf[outbuf.len] = '\0';
684 clean_fname(thisname, 0);
687 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
689 if ((basename = strrchr(thisname, '/')) != NULL) {
690 int len = basename++ - thisname;
691 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
692 lastdir = new_array(char, len + 1);
693 memcpy(lastdir, thisname, len);
696 lastdir_depth = count_dir_elements(lastdir);
700 basename_len = strlen(basename) + 1; /* count the '\0' */
702 #ifdef SUPPORT_HARD_LINKS
703 if (protocol_version >= 30
704 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
705 first_hlink_ndx = read_varint(f);
706 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
708 "hard-link reference out of range: %d (%d)\n",
709 first_hlink_ndx, flist->ndx_start + flist->used);
710 exit_cleanup(RERR_PROTOCOL);
712 if (first_hlink_ndx >= flist->ndx_start) {
713 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
714 file_length = F_LENGTH(first);
715 modtime = first->modtime;
718 uid = F_OWNER(first);
720 gid = F_GROUP(first);
721 if ((preserve_devices && IS_DEVICE(mode))
722 || (preserve_specials && IS_SPECIAL(mode))) {
723 uint32 *devp = F_RDEV_P(first);
724 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
725 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
727 if (preserve_links && S_ISLNK(mode))
728 linkname_len = strlen(F_SYMLINK(first)) + 1;
736 file_length = read_varlong30(f, 3);
737 if (!(xflags & XMIT_SAME_TIME)) {
738 if (protocol_version >= 30) {
739 modtime = read_varlong(f, 4);
740 #if SIZEOF_TIME_T < SIZEOF_INT64
741 if (!am_generator && (int64)(time_t)modtime != modtime) {
743 "Time value of %s truncated on receiver.\n",
748 modtime = read_int(f);
750 if (!(xflags & XMIT_SAME_MODE))
751 mode = from_wire_mode(read_int(f));
753 if (chmod_modes && !S_ISLNK(mode))
754 mode = tweak_mode(mode, chmod_modes);
756 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
757 if (protocol_version < 30)
758 uid = (uid_t)read_int(f);
760 uid = (uid_t)read_varint(f);
761 if (xflags & XMIT_USER_NAME_FOLLOWS)
762 uid = recv_user_name(f, uid);
763 else if (inc_recurse && am_root && !numeric_ids)
764 uid = match_uid(uid);
767 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
768 if (protocol_version < 30)
769 gid = (gid_t)read_int(f);
771 gid = (gid_t)read_varint(f);
773 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
774 gid = recv_group_name(f, gid, &gid_flags);
775 else if (inc_recurse && (!am_root || !numeric_ids))
776 gid = match_gid(gid, &gid_flags);
780 if ((preserve_devices && IS_DEVICE(mode))
781 || (preserve_specials && IS_SPECIAL(mode))) {
782 if (protocol_version < 28) {
783 if (!(xflags & XMIT_SAME_RDEV_pre28))
784 rdev = (dev_t)read_int(f);
787 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
788 rdev_major = read_varint30(f);
789 if (protocol_version >= 30)
790 rdev_minor = read_varint(f);
791 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
792 rdev_minor = read_byte(f);
794 rdev_minor = read_int(f);
795 rdev = MAKEDEV(rdev_major, rdev_minor);
797 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
799 } else if (protocol_version < 28)
800 rdev = MAKEDEV(0, 0);
803 if (preserve_links && S_ISLNK(mode)) {
804 linkname_len = read_varint30(f) + 1; /* count the '\0' */
805 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
806 rprintf(FERROR, "overflow: linkname_len=%d\n",
808 overflow_exit("recv_file_entry");
811 linkname_len += SYMLINK_PREFIX_LEN;
817 #ifdef SUPPORT_HARD_LINKS
819 if (preserve_hard_links) {
820 if (protocol_version < 28 && S_ISREG(mode))
821 xflags |= XMIT_HLINKED;
822 if (xflags & XMIT_HLINKED)
823 extra_len += (inc_recurse+1) * EXTRA_LEN;
828 /* Directories need an extra int32 for the default ACL. */
829 if (preserve_acls && S_ISDIR(mode))
830 extra_len += EXTRA_LEN;
833 if (always_checksum && S_ISREG(mode))
834 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
836 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
837 extra_len += EXTRA_LEN;
839 if (inc_recurse && S_ISDIR(mode)) {
840 if (one_file_system) {
841 /* Room to save the dir's device for -x */
842 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
844 pool = dir_flist->file_pool;
846 pool = flist->file_pool;
848 #if EXTRA_ROUNDING > 0
849 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
850 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
853 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
855 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
857 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
859 file = (struct file_struct *)bp;
860 bp += FILE_STRUCT_LEN;
862 memcpy(bp, basename, basename_len);
864 #ifdef SUPPORT_HARD_LINKS
865 if (xflags & XMIT_HLINKED)
866 file->flags |= FLAG_HLINKED;
868 file->modtime = (time_t)modtime;
869 file->len32 = (uint32)file_length;
870 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
871 file->flags |= FLAG_LENGTH64;
872 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
879 file->flags |= gid_flags;
882 F_NDX(file) = flist->used + flist->ndx_start;
884 if (basename != thisname) {
885 file->dirname = lastdir;
886 F_DEPTH(file) = lastdir_depth + 1;
891 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
893 if (protocol_version >= 30) {
894 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
895 if (xflags & XMIT_TOP_DIR)
896 file->flags |= FLAG_TOP_DIR;
897 file->flags |= FLAG_CONTENT_DIR;
898 } else if (xflags & XMIT_TOP_DIR)
899 file->flags |= FLAG_IMPLIED_DIR;
900 } else if (xflags & XMIT_TOP_DIR) {
901 in_del_hier = recurse;
902 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
903 if (relative_paths && del_hier_name_len > 2
904 && lastname[del_hier_name_len-1] == '.'
905 && lastname[del_hier_name_len-2] == '/')
906 del_hier_name_len -= 2;
907 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
908 } else if (in_del_hier) {
909 if (!relative_paths || !del_hier_name_len
910 || (l1 >= del_hier_name_len
911 && lastname[del_hier_name_len] == '/'))
912 file->flags |= FLAG_CONTENT_DIR;
918 if ((preserve_devices && IS_DEVICE(mode))
919 || (preserve_specials && IS_SPECIAL(mode))) {
920 uint32 *devp = F_RDEV_P(file);
921 DEV_MAJOR(devp) = major(rdev);
922 DEV_MINOR(devp) = minor(rdev);
928 if (first_hlink_ndx >= flist->ndx_start) {
929 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
930 memcpy(bp, F_SYMLINK(first), linkname_len);
931 } else if (munge_symlinks) {
932 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
933 bp += SYMLINK_PREFIX_LEN;
934 linkname_len -= SYMLINK_PREFIX_LEN;
935 read_sbuf(f, bp, linkname_len - 1);
937 read_sbuf(f, bp, linkname_len - 1);
939 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
944 #ifdef SUPPORT_HARD_LINKS
945 if (preserve_hard_links && xflags & XMIT_HLINKED) {
946 if (protocol_version >= 30) {
947 if (xflags & XMIT_HLINK_FIRST) {
948 F_HL_GNUM(file) = flist->ndx_start + flist->used;
950 F_HL_GNUM(file) = first_hlink_ndx;
952 static int32 cnt = 0;
953 struct ht_int64_node *np;
956 if (protocol_version < 26) {
960 if (!(xflags & XMIT_SAME_DEV_pre30))
961 dev = read_longint(f);
962 ino = read_longint(f);
964 np = idev_find(dev, ino);
965 ndx = (int32)(long)np->data - 1;
968 np->data = (void*)(long)cnt;
970 F_HL_GNUM(file) = ndx;
975 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
979 /* Prior to 28, we get a useless set of nulls. */
982 if (first_hlink_ndx >= flist->ndx_start) {
983 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
984 memcpy(bp, F_SUM(first), checksum_len);
986 read_buf(f, bp, checksum_len);
990 if (preserve_acls && !S_ISLNK(mode))
991 receive_acl(file, f);
993 #ifdef SUPPORT_XATTRS
995 receive_xattr(file, f );
998 if (S_ISREG(mode) || S_ISLNK(mode))
999 stats.total_size += file_length;
1004 /* Create a file_struct for a named file by reading its stat() information
1005 * and performing extensive checks against global options.
1007 * Returns a pointer to the new file struct, or NULL if there was an error
1008 * or this file should be excluded. */
1009 struct file_struct *make_file(const char *fname, struct file_list *flist,
1010 STRUCT_STAT *stp, int flags, int filter_level)
1012 static char *lastdir;
1013 static int lastdir_len = -1;
1014 struct file_struct *file;
1015 char thisname[MAXPATHLEN];
1016 char linkname[MAXPATHLEN];
1017 int alloc_len, basename_len, linkname_len;
1018 int extra_len = file_extra_cnt * EXTRA_LEN;
1019 const char *basename;
1025 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1026 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1029 clean_fname(thisname, 0);
1031 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1033 if (stp && S_ISDIR(stp->st_mode)) {
1034 st = *stp; /* Needed for "symlink/." with --relative. */
1035 *linkname = '\0'; /* make IBM code checker happy */
1036 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1037 int save_errno = errno;
1038 /* See if file is excluded before reporting an error. */
1039 if (filter_level != NO_FILTERS
1040 && (is_excluded(thisname, 0, filter_level)
1041 || is_excluded(thisname, 1, filter_level))) {
1042 if (ignore_perishable && save_errno != ENOENT)
1043 non_perishable_cnt++;
1046 if (save_errno == ENOENT) {
1047 #ifdef SUPPORT_LINKS
1048 /* When our options tell us to follow a symlink that
1049 * points nowhere, tell the user about the symlink
1050 * instead of giving a "vanished" message. We only
1051 * dereference a symlink if one of the --copy*links
1052 * options was specified, so there's no need for the
1053 * extra lstat() if one of these options isn't on. */
1054 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1055 && x_lstat(thisname, &st, NULL) == 0
1056 && S_ISLNK(st.st_mode)) {
1057 io_error |= IOERR_GENERAL;
1058 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1059 full_fname(thisname));
1063 enum logcode c = am_daemon && protocol_version < 28
1064 ? FERROR : FWARNING;
1065 io_error |= IOERR_VANISHED;
1066 rprintf(c, "file has vanished: %s\n",
1067 full_fname(thisname));
1070 io_error |= IOERR_GENERAL;
1071 rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
1072 full_fname(thisname));
1077 /* backup.c calls us with filter_level set to NO_FILTERS. */
1078 if (filter_level == NO_FILTERS)
1081 if (S_ISDIR(st.st_mode)) {
1083 rprintf(FINFO, "skipping directory %s\n", thisname);
1086 /* -x only affects dirs because we need to avoid recursing
1087 * into a mount-point directory, not to avoid copying a
1088 * symlinked file if -L (or similar) was specified. */
1089 if (one_file_system && st.st_dev != filesystem_dev
1090 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1091 if (one_file_system > 1) {
1094 "[%s] skipping mount-point dir %s\n",
1095 who_am_i(), thisname);
1099 flags |= FLAG_MOUNT_DIR;
1100 flags &= ~FLAG_CONTENT_DIR;
1103 flags &= ~FLAG_CONTENT_DIR;
1105 if (S_ISDIR(st.st_mode)) {
1106 if (flags & FLAG_DOTDIR_NAME) {
1107 /* A "." fname (or "/." fname in relative mode) is
1108 * never excluded. No other trailing-dotdir names
1112 excl_ret = is_excluded(thisname, 1, filter_level);
1114 excl_ret = is_excluded(thisname, 0, filter_level);
1116 if (ignore_perishable)
1117 non_perishable_cnt++;
1121 if (lp_ignore_nonreadable(module_id)) {
1122 #ifdef SUPPORT_LINKS
1123 if (!S_ISLNK(st.st_mode))
1125 if (access(thisname, R_OK) != 0)
1131 /* Only divert a directory in the main transfer. */
1133 if (flist->prev && S_ISDIR(st.st_mode)
1134 && flags & FLAG_DIVERT_DIRS) {
1135 /* Room for parent/sibling/next-child info. */
1136 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1138 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1139 pool = dir_flist->file_pool;
1141 pool = flist->file_pool;
1144 /* Directories need an extra int32 for the default ACL. */
1145 if (preserve_acls && S_ISDIR(st.st_mode))
1146 extra_len += EXTRA_LEN;
1152 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1153 who_am_i(), thisname, filter_level);
1156 if ((basename = strrchr(thisname, '/')) != NULL) {
1157 int len = basename++ - thisname;
1158 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1159 lastdir = new_array(char, len + 1);
1160 memcpy(lastdir, thisname, len);
1161 lastdir[len] = '\0';
1165 basename = thisname;
1166 basename_len = strlen(basename) + 1; /* count the '\0' */
1168 #ifdef SUPPORT_LINKS
1169 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1174 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1175 extra_len += EXTRA_LEN;
1177 #if EXTRA_ROUNDING > 0
1178 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1179 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1182 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1185 bp = pool_alloc(pool, alloc_len, "make_file");
1187 if (!(bp = new_array(char, alloc_len)))
1188 out_of_memory("make_file");
1191 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1193 file = (struct file_struct *)bp;
1194 bp += FILE_STRUCT_LEN;
1196 memcpy(bp, basename, basename_len);
1198 #ifdef SUPPORT_HARD_LINKS
1199 if (preserve_hard_links && flist && flist->prev) {
1200 if (protocol_version >= 28
1201 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1202 : S_ISREG(st.st_mode)) {
1203 tmp_dev = st.st_dev;
1204 tmp_ino = st.st_ino;
1210 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1211 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1212 tmp_rdev = st.st_rdev;
1217 file->flags = flags;
1218 file->modtime = st.st_mtime;
1219 file->len32 = (uint32)st.st_size;
1220 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1221 file->flags |= FLAG_LENGTH64;
1222 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1224 file->mode = st.st_mode;
1225 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1226 F_OWNER(file) = st.st_uid;
1227 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1228 F_GROUP(file) = st.st_gid;
1230 if (basename != thisname)
1231 file->dirname = lastdir;
1233 #ifdef SUPPORT_LINKS
1235 memcpy(bp + basename_len, linkname, linkname_len);
1238 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1239 file_checksum(thisname, tmp_sum, st.st_size);
1242 F_PATHNAME(file) = pathname;
1244 F_DEPTH(file) = extra_len / EXTRA_LEN;
1246 /* This code is only used by the receiver when it is building
1247 * a list of files for a delete pass. */
1248 if (keep_dirlinks && linkname_len && flist) {
1250 int save_mode = file->mode;
1251 file->mode = S_IFDIR; /* Find a directory with our name. */
1252 if (flist_find(dir_flist, file) >= 0
1253 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1254 file->modtime = st2.st_mtime;
1256 file->mode = st2.st_mode;
1258 F_OWNER(file) = st2.st_uid;
1260 F_GROUP(file) = st2.st_gid;
1262 file->mode = save_mode;
1265 if (basename_len == 0+1) {
1272 F_NDX(file) = dir_count;
1277 /* Only called for temporary file_struct entries created by make_file(). */
1278 void unmake_file(struct file_struct *file)
1280 free(REQ_EXTRA(file, F_DEPTH(file)));
1283 static struct file_struct *send_file_name(int f, struct file_list *flist,
1284 const char *fname, STRUCT_STAT *stp,
1285 int flags, int filter_level)
1287 struct file_struct *file;
1289 file = make_file(fname, flist, stp, flags, filter_level);
1293 if (chmod_modes && !S_ISLNK(file->mode))
1294 file->mode = tweak_mode(file->mode, chmod_modes);
1297 char fbuf[MAXPATHLEN];
1298 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1303 if (ic_send != (iconv_t)-1) {
1306 INIT_CONST_XBUF(outbuf, fbuf);
1308 if (file->dirname) {
1309 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1310 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1311 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1314 outbuf.buf[outbuf.len++] = '/';
1317 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1318 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1320 io_error |= IOERR_GENERAL;
1322 "[%s] cannot convert filename: %s (%s)\n",
1323 who_am_i(), f_name(file, fbuf), strerror(errno));
1326 outbuf.buf[outbuf.len] = '\0';
1332 if (preserve_acls && !S_ISLNK(file->mode)) {
1333 sx.st.st_mode = file->mode;
1334 sx.acc_acl = sx.def_acl = NULL;
1335 if (get_acl(fname, &sx) < 0)
1339 #ifdef SUPPORT_XATTRS
1340 if (preserve_xattrs) {
1342 if (get_xattr(fname, &sx) < 0)
1347 send_file_entry(f, fbuf, file, flist->used, flist->ndx_start);
1350 if (preserve_acls && !S_ISLNK(file->mode)) {
1355 #ifdef SUPPORT_XATTRS
1356 if (preserve_xattrs) {
1357 F_XATTR(file) = send_xattr(&sx, f);
1363 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1365 flist_expand(flist, 1);
1366 flist->files[flist->used++] = file;
1371 static void send_if_directory(int f, struct file_list *flist,
1372 struct file_struct *file,
1373 char *fbuf, unsigned int ol,
1376 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1378 if (S_ISDIR(file->mode)
1379 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1381 unsigned int len = strlen(fbuf);
1382 if (len > 1 && fbuf[len-1] == '/')
1384 if (len >= MAXPATHLEN - 1) {
1385 io_error |= IOERR_GENERAL;
1386 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1390 save_filters = push_local_filters(fbuf, len);
1391 send_directory(f, flist, fbuf, len, flags);
1392 pop_local_filters(save_filters);
1399 static int file_compare(const void *file1, const void *file2)
1401 return f_name_cmp(*(struct file_struct **)file1,
1402 *(struct file_struct **)file2);
1405 /* The guts of a merge-sort algorithm. This was derived from the glibc
1406 * version, but I (Wayne) changed the merge code to do less copying and
1407 * to require only half the amount of temporary memory. */
1408 static void fsort_tmp(struct file_struct **fp, size_t num,
1409 struct file_struct **tmp)
1411 struct file_struct **f1, **f2, **t;
1420 fsort_tmp(f1, n1, tmp);
1422 fsort_tmp(f2, n2, tmp);
1424 while (f_name_cmp(*f1, *f2) <= 0) {
1431 memcpy(t, f1, n1 * PTR_SIZE);
1433 *f1++ = *f2++, n2--;
1435 while (n1 > 0 && n2 > 0) {
1436 if (f_name_cmp(*t, *f2) <= 0)
1439 *f1++ = *f2++, n2--;
1443 memcpy(f1, t, n1 * PTR_SIZE);
1446 /* This file-struct sorting routine makes sure that any identical names in
1447 * the file list stay in the same order as they were in the original list.
1448 * This is particularly vital in inc_recurse mode where we expect a sort
1449 * on the flist to match the exact order of a sort on the dir_flist. */
1450 static void fsort(struct file_struct **fp, size_t num)
1456 qsort(fp, num, PTR_SIZE, file_compare);
1458 struct file_struct **tmp = new_array(struct file_struct *,
1460 fsort_tmp(fp, num, tmp);
1465 /* We take an entire set of sibling dirs from the sorted flist and link them
1466 * into the tree, setting the appropriate parent/child/sibling pointers. */
1467 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1472 int32 *parent_dp = parent_ndx < 0 ? NULL
1473 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1475 flist_expand(dir_flist, dir_cnt);
1476 dir_flist->sorted = dir_flist->files;
1478 for (i = 0; dir_cnt; i++) {
1479 struct file_struct *file = from_flist->sorted[i];
1481 if (!S_ISDIR(file->mode))
1484 dir_flist->files[dir_flist->used++] = file;
1487 if (file->basename[0] == '.' && file->basename[1] == '\0')
1491 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1493 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1495 send_dir_ndx = dir_flist->used - 1;
1497 dp = F_DIR_NODE_P(file);
1498 DIR_PARENT(dp) = parent_ndx;
1499 DIR_FIRST_CHILD(dp) = -1;
1502 DIR_NEXT_SIBLING(dp) = -1;
1505 /* This function is normally called by the sender, but the receiving side also
1506 * calls it from get_dirlist() with f set to -1 so that we just construct the
1507 * file list in memory without sending it over the wire. Also, get_dirlist()
1508 * might call this with f set to -2, which also indicates that local filter
1509 * rules should be ignored. */
1510 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1517 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1518 int start = flist->used;
1519 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1521 assert(flist != NULL);
1523 if (!(d = opendir(fbuf))) {
1524 io_error |= IOERR_GENERAL;
1525 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1530 if (len != 1 || *fbuf != '/')
1533 remainder = MAXPATHLEN - (p - fbuf);
1535 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1536 char *dname = d_name(di);
1537 if (dname[0] == '.' && (dname[1] == '\0'
1538 || (dname[1] == '.' && dname[2] == '\0')))
1540 if (strlcpy(p, dname, remainder) >= remainder) {
1541 io_error |= IOERR_GENERAL;
1543 "cannot send long-named file %s\n",
1547 if (dname[0] == '\0') {
1548 io_error |= IOERR_GENERAL;
1550 "cannot send file with empty name in %s\n",
1555 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1561 io_error |= IOERR_GENERAL;
1562 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1567 if (f >= 0 && recurse && !divert_dirs) {
1568 int i, end = flist->used - 1;
1569 /* send_if_directory() bumps flist->used, so use "end". */
1570 for (i = start; i <= end; i++)
1571 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1575 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1576 char *start, char *limit, int flags, char name_type)
1578 static char lastpath[MAXPATHLEN] = "";
1579 static int lastpath_len = 0;
1580 static struct file_struct *lastpath_struct = NULL;
1581 struct file_struct *file;
1582 item_list *relname_list;
1583 relnamecache **rnpp;
1584 int len, need_new_dir, depth = 0;
1585 struct filter_list_struct save_filter_list = filter_list;
1587 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1588 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1591 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1592 && lastpath_len == limit - fname
1593 && strncmp(lastpath, fname, lastpath_len) == 0)
1598 char *tp = fname, *lp = lastpath;
1599 /* Skip any initial directories in our path that we
1600 * have in common with lastpath. */
1601 assert(start == fname);
1602 for ( ; ; tp++, lp++) {
1604 if (*lp == '/' || *lp == '\0')
1619 int save_copy_links = copy_links;
1620 int save_xfer_dirs = xfer_dirs;
1623 copy_links = xfer_dirs = 1;
1627 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1629 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1631 if (!inc_recurse && file && S_ISDIR(file->mode))
1632 change_local_filter_dir(fname, strlen(fname), depth);
1636 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1638 if (file && !S_ISDIR(file->mode))
1640 lastpath_struct = file;
1641 } else if (file && S_ISDIR(file->mode))
1642 change_local_filter_dir(fname, strlen(fname), ++depth);
1644 strlcpy(lastpath, fname, sizeof lastpath);
1645 lastpath_len = limit - fname;
1649 copy_links = save_copy_links;
1650 xfer_dirs = save_xfer_dirs;
1656 if (!lastpath_struct)
1657 goto done; /* dir must have vanished */
1659 len = strlen(limit+1);
1660 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1661 if (!relname_list) {
1662 if (!(relname_list = new0(item_list)))
1663 out_of_memory("send_implied_dirs");
1664 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1666 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1667 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1668 out_of_memory("send_implied_dirs");
1669 (*rnpp)->name_type = name_type;
1670 strlcpy((*rnpp)->fname, limit+1, len + 1);
1673 filter_list = save_filter_list;
1676 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1678 char fbuf[MAXPATHLEN];
1679 item_list *relname_list;
1680 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1684 dlen = strlen(fbuf);
1686 if (!change_pathname(file, NULL, 0))
1687 exit_cleanup(RERR_FILESELECT);
1689 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1691 if (file->flags & FLAG_CONTENT_DIR) {
1692 if (one_file_system) {
1694 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1695 io_error |= IOERR_GENERAL;
1696 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1700 filesystem_dev = st.st_dev;
1702 send_directory(f, flist, fbuf, dlen, flags);
1705 if (!relative_paths)
1708 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1712 for (j = 0; j < relname_list->count; j++) {
1714 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1715 char name_type = rnp->name_type;
1718 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1720 if (len >= (int)sizeof fbuf)
1721 continue; /* Impossible... */
1723 slash = strchr(fbuf+dlen+1, '/');
1725 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1729 if (name_type != NORMAL_NAME) {
1731 if (link_stat(fbuf, &st, 1) != 0) {
1732 io_error |= IOERR_GENERAL;
1733 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1737 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1739 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1745 void send_extra_file_list(int f, int at_least)
1747 struct file_list *flist;
1750 int old_cnt, save_io_error = io_error;
1755 /* Keep sending data until we have the requested number of
1756 * files in the upcoming file-lists. */
1757 old_cnt = cur_flist->used;
1758 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1759 old_cnt += flist->used;
1760 while (file_total - old_cnt < at_least) {
1761 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1762 int dir_ndx, dstart = dir_count;
1763 const char *pathname = F_PATHNAME(file);
1766 flist = flist_new(0, "send_extra_file_list");
1767 start_write = stats.total_written;
1770 dir_ndx = F_NDX(file);
1772 dir_ndx = send_dir_ndx;
1773 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1774 flist->parent_ndx = dir_ndx;
1776 send1extra(f, file, flist);
1777 prev_flags = file->flags;
1778 dp = F_DIR_NODE_P(file);
1780 /* If there are any duplicate directory names that follow, we
1781 * send all the dirs together in one file-list. The dir_flist
1782 * tree links all the child subdirs onto the last dup dir. */
1783 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1784 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1785 send_dir_ndx = dir_ndx;
1786 file = dir_flist->sorted[dir_ndx];
1787 /* Try to avoid some duplicate scanning of identical dirs. */
1788 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1789 file->flags &= ~FLAG_CONTENT_DIR;
1790 send1extra(f, file, flist);
1791 prev_flags = file->flags;
1792 dp = F_DIR_NODE_P(file);
1797 if (need_unsorted_flist) {
1798 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1799 out_of_memory("send_extra_file_list");
1800 memcpy(flist->sorted, flist->files,
1801 flist->used * sizeof (struct file_struct*));
1803 flist->sorted = flist->files;
1805 flist_sort_and_clean(flist, 0);
1807 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1808 flist_done_allocating(flist);
1810 file_total += flist->used;
1811 stats.flist_size += stats.total_written - start_write;
1812 stats.num_files += flist->used;
1814 output_flist(flist);
1816 if (DIR_FIRST_CHILD(dp) >= 0) {
1817 send_dir_ndx = DIR_FIRST_CHILD(dp);
1820 while (DIR_NEXT_SIBLING(dp) < 0) {
1821 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1822 write_ndx(f, NDX_FLIST_EOF);
1824 change_local_filter_dir(NULL, 0, 0);
1828 file = dir_flist->sorted[send_dir_ndx];
1829 dp = F_DIR_NODE_P(file);
1831 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1836 if (io_error != save_io_error && !ignore_errors)
1837 send_msg_int(MSG_IO_ERROR, io_error);
1840 struct file_list *send_file_list(int f, int argc, char *argv[])
1842 static const char *lastdir;
1843 static int lastdir_len = -1;
1847 struct file_list *flist;
1848 struct timeval start_tv, end_tv;
1851 int disable_buffering;
1852 int arg_flags, flags = recurse ? FLAG_CONTENT_DIR : 0;
1853 int reading_remotely = filesfrom_host != NULL;
1854 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1856 | (filesfrom_convert ? RL_CONVERT : 0)
1858 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1859 int implied_dot_dir = 0;
1861 rprintf(FLOG, "building file list\n");
1862 if (show_filelist_p())
1863 start_filelist_progress("building file list");
1864 else if (inc_recurse && verbose && !am_server)
1865 rprintf(FCLIENT, "sending incremental file list\n");
1867 start_write = stats.total_written;
1868 gettimeofday(&start_tv, NULL);
1871 orig_dir = strdup(curr_dir);
1873 if (relative_paths && protocol_version >= 30)
1874 implied_dirs = 1; /* We send flagged implied dirs */
1876 #ifdef SUPPORT_HARD_LINKS
1877 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1881 flist = cur_flist = flist_new(0, "send_file_list");
1883 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1884 flags |= FLAG_DIVERT_DIRS;
1886 dir_flist = cur_flist;
1888 disable_buffering = io_start_buffering_out(f);
1889 if (filesfrom_fd >= 0) {
1890 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
1891 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
1892 full_fname(argv[0]));
1893 exit_cleanup(RERR_FILESELECT);
1899 char fbuf[MAXPATHLEN], *fn, name_type;
1902 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1904 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1908 strlcpy(fbuf, *argv++, MAXPATHLEN);
1910 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1914 if (relative_paths) {
1915 /* We clean up fbuf below. */
1916 name_type = NORMAL_NAME;
1917 } else if (!len || fbuf[len - 1] == '/') {
1918 if (len == 2 && fbuf[0] == '.') {
1919 /* Turn "./" into just "." rather than "./." */
1922 if (len + 1 >= MAXPATHLEN)
1923 overflow_exit("send_file_list");
1927 name_type = DOTDIR_NAME;
1928 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1929 && (len == 2 || fbuf[len-3] == '/')) {
1930 if (len + 2 >= MAXPATHLEN)
1931 overflow_exit("send_file_list");
1935 name_type = DOTDIR_NAME;
1936 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
1937 name_type = DOTDIR_NAME;
1939 name_type = NORMAL_NAME;
1943 if (!relative_paths) {
1944 p = strrchr(fbuf, '/');
1951 len -= p - fbuf + 1;
1956 if ((p = strstr(fbuf, "/./")) != NULL) {
1962 clean_fname(dir, 0);
1968 *--fn = '\0'; /* ensure room for '.' */
1971 /* A leading ./ can be used in relative mode to affect
1972 * the dest dir without its name being in the path. */
1973 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
1974 send_file_name(f, flist, ".", NULL,
1975 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
1977 implied_dot_dir = 1;
1979 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
1980 | CFN_DROP_TRAILING_DOT_DIR);
1985 name_type = DOTDIR_NAME;
1986 } else if (fn[0] == '.')
1987 name_type = DOTDIR_NAME;
1988 } else if (fn[len-1] == '/') {
1990 if (len == 1 && *fn == '.')
1991 name_type = DOTDIR_NAME;
1993 name_type = SLASH_ENDING_NAME;
1995 /* Reject a ".." dir in the active part of the path. */
1996 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
1997 if ((p[2] == '/' || p[2] == '\0')
1998 && (p == fn || p[-1] == '/')) {
2000 "found \"..\" dir in relative path: %s\n",
2002 exit_cleanup(RERR_SYNTAX);
2010 name_type = DOTDIR_NAME;
2013 dirlen = dir ? strlen(dir) : 0;
2014 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2015 if (!change_pathname(NULL, dir, -dirlen))
2018 lastdir_len = pathname_len;
2019 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2023 memmove(fbuf, fn, len + 1);
2025 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2026 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2027 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2028 io_error |= IOERR_GENERAL;
2029 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2034 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2035 rprintf(FINFO, "skipping directory %s\n", fbuf);
2039 if (inc_recurse && relative_paths && *fbuf) {
2040 if ((p = strchr(fbuf+1, '/')) != NULL) {
2041 if (p - fbuf == 1 && *fbuf == '.') {
2042 if ((fn = strchr(p+1, '/')) != NULL)
2046 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2050 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2051 /* Send the implied directories at the start of the
2052 * source spec, so we get their permissions right. */
2053 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2056 if (one_file_system)
2057 filesystem_dev = st.st_dev;
2059 arg_flags = name_type == DOTDIR_NAME ? FLAG_DOTDIR_NAME : 0;
2061 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2062 struct file_struct *file;
2063 arg_flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
2064 file = send_file_name(f, flist, fbuf, &st,
2065 arg_flags | flags, ALL_FILTERS);
2069 if (name_type == DOTDIR_NAME) {
2070 if (send_dir_depth < 0) {
2072 change_local_filter_dir(fbuf, len, send_dir_depth);
2074 send_directory(f, flist, fbuf, len, flags);
2077 send_if_directory(f, flist, file, fbuf, len, flags);
2079 send_file_name(f, flist, fbuf, &st, arg_flags | flags, ALL_FILTERS);
2082 gettimeofday(&end_tv, NULL);
2083 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2084 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2085 if (stats.flist_buildtime == 0)
2086 stats.flist_buildtime = 1;
2089 write_byte(f, 0); /* Indicate end of file list */
2091 #ifdef SUPPORT_HARD_LINKS
2092 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2096 if (show_filelist_p())
2097 finish_filelist_progress(flist);
2099 gettimeofday(&end_tv, NULL);
2100 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2101 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2103 /* When converting names, both sides keep an unsorted file-list array
2104 * because the names will differ on the sending and receiving sides
2105 * (both sides will use the unsorted index number for each item). */
2107 /* Sort the list without removing any duplicates. This allows the
2108 * receiving side to ask for whatever name it kept. For incremental
2109 * recursion mode, the sender marks duplicate dirs so that it can
2110 * send them together in a single file-list. */
2111 if (need_unsorted_flist) {
2112 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2113 out_of_memory("send_file_list");
2114 memcpy(flist->sorted, flist->files,
2115 flist->used * sizeof (struct file_struct*));
2117 flist->sorted = flist->files;
2118 flist_sort_and_clean(flist, 0);
2119 file_total += flist->used;
2121 if (numeric_ids <= 0 && !inc_recurse)
2124 /* send the io_error flag */
2125 if (protocol_version < 30)
2126 write_int(f, ignore_errors ? 0 : io_error);
2127 else if (io_error && !ignore_errors)
2128 send_msg_int(MSG_IO_ERROR, io_error);
2130 if (disable_buffering)
2131 io_end_buffering_out();
2133 stats.flist_size = stats.total_written - start_write;
2134 stats.num_files = flist->used;
2137 output_flist(flist);
2140 rprintf(FINFO, "send_file_list done\n");
2144 add_dirs_to_tree(-1, flist, dir_count);
2145 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2146 flist->parent_ndx = -1;
2147 flist_done_allocating(flist);
2148 if (send_dir_ndx < 0) {
2149 write_ndx(f, NDX_FLIST_EOF);
2152 else if (file_total == 1) {
2153 /* If we're creating incremental file-lists and there
2154 * was just 1 item in the first file-list, send 1 more
2155 * file-list to check if this is a 1-file xfer. */
2156 send_extra_file_list(f, 1);
2163 struct file_list *recv_file_list(int f)
2165 struct file_list *flist;
2170 rprintf(FLOG, "receiving file list\n");
2171 if (show_filelist_p())
2172 start_filelist_progress("receiving file list");
2173 else if (inc_recurse && verbose && !am_server && !first_flist)
2174 rprintf(FCLIENT, "receiving incremental file list\n");
2176 start_read = stats.total_read;
2178 #ifdef SUPPORT_HARD_LINKS
2179 if (preserve_hard_links && !first_flist)
2183 flist = flist_new(0, "recv_file_list");
2186 if (flist->ndx_start == 1)
2187 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2188 dstart = dir_flist->used;
2194 while ((flags = read_byte(f)) != 0) {
2195 struct file_struct *file;
2197 flist_expand(flist, 1);
2199 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2200 flags |= read_byte(f) << 8;
2201 file = recv_file_entry(flist, flags, f);
2203 if (inc_recurse && S_ISDIR(file->mode)) {
2204 flist_expand(dir_flist, 1);
2205 dir_flist->files[dir_flist->used++] = file;
2208 flist->files[flist->used++] = file;
2210 maybe_emit_filelist_progress(flist->used);
2213 rprintf(FINFO, "recv_file_name(%s)\n",
2214 f_name(file, NULL));
2217 file_total += flist->used;
2220 rprintf(FINFO, "received %d names\n", flist->used);
2222 if (show_filelist_p())
2223 finish_filelist_progress(flist);
2225 if (need_unsorted_flist) {
2226 /* Create an extra array of index pointers that we can sort for
2227 * the generator's use (for wading through the files in sorted
2228 * order and for calling flist_find()). We keep the "files"
2229 * list unsorted for our exchange of index numbers with the
2230 * other side (since their names may not sort the same). */
2231 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2232 out_of_memory("recv_file_list");
2233 memcpy(flist->sorted, flist->files,
2234 flist->used * sizeof (struct file_struct*));
2235 if (inc_recurse && dir_flist->used > dstart) {
2236 static int dir_flist_malloced = 0;
2237 if (dir_flist_malloced < dir_flist->malloced) {
2238 dir_flist->sorted = realloc_array(dir_flist->sorted,
2239 struct file_struct *,
2240 dir_flist->malloced);
2241 dir_flist_malloced = dir_flist->malloced;
2243 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2244 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2245 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2248 flist->sorted = flist->files;
2249 if (inc_recurse && dir_flist->used > dstart) {
2250 dir_flist->sorted = dir_flist->files;
2251 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2256 flist_done_allocating(flist);
2258 recv_id_list(f, flist);
2260 flist_sort_and_clean(flist, relative_paths);
2262 if (protocol_version < 30) {
2263 /* Recv the io_error flag */
2267 io_error |= read_int(f);
2268 } else if (inc_recurse && flist->ndx_start == 1) {
2269 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2270 flist->parent_ndx = -1;
2274 output_flist(flist);
2277 rprintf(FINFO, "recv_file_list done\n");
2279 stats.flist_size += stats.total_read - start_read;
2280 stats.num_files += flist->used;
2285 /* This is only used once by the receiver if the very first file-list
2286 * has exactly one item in it. */
2287 void recv_additional_file_list(int f)
2289 struct file_list *flist;
2290 int ndx = read_ndx(f);
2291 if (ndx == NDX_FLIST_EOF) {
2293 change_local_filter_dir(NULL, 0, 0);
2295 ndx = NDX_FLIST_OFFSET - ndx;
2296 if (ndx < 0 || ndx >= dir_flist->used) {
2297 ndx = NDX_FLIST_OFFSET - ndx;
2299 "[%s] Invalid dir index: %d (%d - %d)\n",
2300 who_am_i(), ndx, NDX_FLIST_OFFSET,
2301 NDX_FLIST_OFFSET - dir_flist->used + 1);
2302 exit_cleanup(RERR_PROTOCOL);
2305 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2308 flist = recv_file_list(f);
2309 flist->parent_ndx = ndx;
2313 /* Search for an identically-named item in the file list. Note that the
2314 * items must agree in their directory-ness, or no match is returned. */
2315 int flist_find(struct file_list *flist, struct file_struct *f)
2317 int low = flist->low, high = flist->high;
2318 int diff, mid, mid_up;
2320 while (low <= high) {
2321 mid = (low + high) / 2;
2322 if (F_IS_ACTIVE(flist->sorted[mid]))
2325 /* Scan for the next non-empty entry using the cached
2326 * distance values. If the value isn't fully up-to-
2327 * date, update it. */
2328 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2329 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2331 mid_up += F_DEPTH(flist->sorted[mid_up]);
2332 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2333 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2335 if (mid_up > high) {
2336 /* If there's nothing left above us, set high to
2337 * a non-empty entry below us and continue. */
2338 high = mid - (int)flist->sorted[mid]->len32;
2339 if (!F_IS_ACTIVE(flist->sorted[high])) {
2341 high -= (int)flist->sorted[high]->len32;
2342 } while (!F_IS_ACTIVE(flist->sorted[high]));
2343 flist->sorted[mid]->len32 = mid - high;
2348 diff = f_name_cmp(flist->sorted[mid_up], f);
2350 if (protocol_version < 29
2351 && S_ISDIR(flist->sorted[mid_up]->mode)
2352 != S_ISDIR(f->mode))
2365 * Free up any resources a file_struct has allocated
2366 * and clear the file.
2368 void clear_file(struct file_struct *file)
2370 /* The +1 zeros out the first char of the basename. */
2371 memset(file, 0, FILE_STRUCT_LEN + 1);
2372 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2373 * entry. Likewise for len32 in the opposite direction. We assume
2374 * that we're alone for now since flist_find() will adjust the counts
2375 * it runs into that aren't up-to-date. */
2376 file->len32 = F_DEPTH(file) = 1;
2379 /* Allocate a new file list. */
2380 struct file_list *flist_new(int flags, char *msg)
2382 struct file_list *flist;
2384 if (!(flist = new0(struct file_list)))
2387 if (flags & FLIST_TEMP) {
2388 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2389 out_of_memory, POOL_INTERN)))
2392 /* This is a doubly linked list with prev looping back to
2393 * the end of the list, but the last next pointer is NULL. */
2395 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2396 out_of_memory, POOL_INTERN);
2397 if (!flist->file_pool)
2400 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2402 first_flist = cur_flist = flist->prev = flist;
2404 struct file_list *prev = first_flist->prev;
2406 flist->file_pool = first_flist->file_pool;
2408 flist->ndx_start = prev->ndx_start + prev->used + 1;
2409 flist->flist_num = prev->flist_num + 1;
2412 prev->next = first_flist->prev = flist;
2414 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2421 /* Free up all elements in a flist. */
2422 void flist_free(struct file_list *flist)
2425 /* Was FLIST_TEMP dir-list. */
2426 } else if (flist == flist->prev) {
2427 first_flist = cur_flist = NULL;
2431 if (flist == cur_flist)
2432 cur_flist = flist->next;
2433 if (flist == first_flist)
2434 first_flist = first_flist->next;
2436 flist->prev->next = flist->next;
2438 flist->next = first_flist;
2440 flist->next->prev = flist->prev;
2441 file_total -= flist->used;
2445 if (!flist->prev || !flist_cnt)
2446 pool_destroy(flist->file_pool);
2448 pool_free_old(flist->file_pool, flist->pool_boundary);
2450 if (flist->sorted && flist->sorted != flist->files)
2451 free(flist->sorted);
2456 /* This routine ensures we don't have any duplicate names in our file list.
2457 * duplicate names can cause corruption because of the pipelining. */
2458 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2460 char fbuf[MAXPATHLEN];
2465 if (flist->used == 0) {
2471 fsort(flist->sorted, flist->used);
2473 if (!am_sender || inc_recurse) {
2474 for (i = prev_i = 0; i < flist->used; i++) {
2475 if (F_IS_ACTIVE(flist->sorted[i])) {
2480 flist->low = prev_i;
2482 i = prev_i = flist->used - 1;
2486 while (++i < flist->used) {
2488 struct file_struct *file = flist->sorted[i];
2490 if (!F_IS_ACTIVE(file))
2492 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2494 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2495 int save_mode = file->mode;
2496 /* Make sure that this directory doesn't duplicate a
2497 * non-directory earlier in the list. */
2498 flist->high = prev_i;
2499 file->mode = S_IFREG;
2500 j = flist_find(flist, file);
2501 file->mode = save_mode;
2506 /* If one is a dir and the other is not, we want to
2507 * keep the dir because it might have contents in the
2508 * list. Otherwise keep the first one. */
2509 if (S_ISDIR(file->mode)) {
2510 struct file_struct *fp = flist->sorted[j];
2511 if (!S_ISDIR(fp->mode))
2515 file->flags |= FLAG_DUPLICATE;
2516 else { /* Make sure we merge our vital flags. */
2517 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2518 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2528 "removing duplicate name %s from file list (%d)\n",
2529 f_name(file, fbuf), drop + flist->ndx_start);
2531 clear_file(flist->sorted[drop]);
2535 if (flist->low == drop) {
2537 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2546 flist->high = prev_i;
2549 /* We need to strip off the leading slashes for relative
2550 * paths, but this must be done _after_ the sorting phase. */
2551 for (i = flist->low; i <= flist->high; i++) {
2552 struct file_struct *file = flist->sorted[i];
2556 while (*file->dirname == '/')
2558 if (!*file->dirname)
2559 file->dirname = NULL;
2563 if (prune_empty_dirs && !am_sender) {
2564 int j, prev_depth = 0;
2566 prev_i = 0; /* It's OK that this isn't really true. */
2568 for (i = flist->low; i <= flist->high; i++) {
2569 struct file_struct *fp, *file = flist->sorted[i];
2571 /* This temporarily abuses the F_DEPTH() value for a
2572 * directory that is in a chain that might get pruned.
2573 * We restore the old value if it gets a reprieve. */
2574 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2575 /* Dump empty dirs when coming back down. */
2576 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2577 fp = flist->sorted[prev_i];
2578 if (F_DEPTH(fp) >= 0)
2580 prev_i = -F_DEPTH(fp)-1;
2583 prev_depth = F_DEPTH(file);
2584 if (is_excluded(f_name(file, fbuf), 1,
2586 /* Keep dirs through this dir. */
2587 for (j = prev_depth-1; ; j--) {
2588 fp = flist->sorted[prev_i];
2589 if (F_DEPTH(fp) >= 0)
2591 prev_i = -F_DEPTH(fp)-1;
2595 F_DEPTH(file) = -prev_i-1;
2598 /* Keep dirs through this non-dir. */
2599 for (j = prev_depth; ; j--) {
2600 fp = flist->sorted[prev_i];
2601 if (F_DEPTH(fp) >= 0)
2603 prev_i = -F_DEPTH(fp)-1;
2608 /* Dump all remaining empty dirs. */
2610 struct file_struct *fp = flist->sorted[prev_i];
2611 if (F_DEPTH(fp) >= 0)
2613 prev_i = -F_DEPTH(fp)-1;
2617 for (i = flist->low; i <= flist->high; i++) {
2618 if (F_IS_ACTIVE(flist->sorted[i]))
2622 for (i = flist->high; i >= flist->low; i--) {
2623 if (F_IS_ACTIVE(flist->sorted[i]))
2630 static void output_flist(struct file_list *flist)
2632 char uidbuf[16], gidbuf[16], depthbuf[16];
2633 struct file_struct *file;
2634 const char *root, *dir, *slash, *name, *trail;
2635 const char *who = who_am_i();
2638 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2639 who, flist->ndx_start, flist->used, flist->low, flist->high);
2640 for (i = 0; i < flist->used; i++) {
2641 file = flist->files[i];
2642 if ((am_root || am_sender) && uid_ndx) {
2643 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2648 static char parens[] = "(\0)\0\0\0";
2649 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2650 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2651 pp, F_GROUP(file), pp + 2);
2655 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2656 if (F_IS_ACTIVE(file)) {
2657 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2658 if ((dir = file->dirname) == NULL)
2662 name = file->basename;
2663 trail = S_ISDIR(file->mode) ? "/" : "";
2665 root = dir = slash = name = trail = "";
2667 "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
2668 who, i + flist->ndx_start,
2669 root, dir, slash, name, trail,
2670 (int)file->mode, (double)F_LENGTH(file),
2671 uidbuf, gidbuf, file->flags);
2675 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2676 enum fnc_type { t_PATH, t_ITEM };
2678 static int found_prefix;
2680 /* Compare the names of two file_struct entities, similar to how strcmp()
2681 * would do if it were operating on the joined strings.
2683 * Some differences beginning with protocol_version 29: (1) directory names
2684 * are compared with an assumed trailing slash so that they compare in a
2685 * way that would cause them to sort immediately prior to any content they
2686 * may have; (2) a directory of any name compares after a non-directory of
2687 * any name at the same depth; (3) a directory with name "." compares prior
2688 * to anything else. These changes mean that a directory and a non-dir
2689 * with the same name will not compare as equal (protocol_version >= 29).
2691 * The dirname component can be an empty string, but the basename component
2692 * cannot (and never is in the current codebase). The basename component
2693 * may be NULL (for a removed item), in which case it is considered to be
2694 * after any existing item. */
2695 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2698 const uchar *c1, *c2;
2699 enum fnc_state state1, state2;
2700 enum fnc_type type1, type2;
2701 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2703 if (!f1 || !F_IS_ACTIVE(f1)) {
2704 if (!f2 || !F_IS_ACTIVE(f2))
2708 if (!f2 || !F_IS_ACTIVE(f2))
2711 c1 = (uchar*)f1->dirname;
2712 c2 = (uchar*)f2->dirname;
2716 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2717 c1 = (const uchar*)f1->basename;
2718 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2720 state1 = s_TRAILING;
2729 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2730 c2 = (const uchar*)f2->basename;
2731 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2733 state2 = s_TRAILING;
2743 return type1 == t_PATH ? 1 : -1;
2753 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2754 c1 = (const uchar*)f1->basename;
2755 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2757 state1 = s_TRAILING;
2763 state1 = s_TRAILING;
2764 if (type1 == t_PATH) {
2773 if (*c2 && type1 != type2)
2774 return type1 == t_PATH ? 1 : -1;
2783 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2784 c2 = (const uchar*)f2->basename;
2785 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2787 state2 = s_TRAILING;
2793 state2 = s_TRAILING;
2794 if (type2 == t_PATH) {
2807 return type1 == t_PATH ? 1 : -1;
2809 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2814 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2815 * not match if f2's basename is not an exact match of a path element in f1.
2816 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2817 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2821 return found_prefix;
2824 char *f_name_buf(void)
2826 static char names[5][MAXPATHLEN];
2827 static unsigned int n;
2829 n = (n + 1) % (sizeof names / sizeof names[0]);
2834 /* Return a copy of the full filename of a flist entry, using the indicated
2835 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2836 * done because we checked the size when creating the file_struct entry.
2838 char *f_name(const struct file_struct *f, char *fbuf)
2840 if (!f || !F_IS_ACTIVE(f))
2844 fbuf = f_name_buf();
2847 int len = strlen(f->dirname);
2848 memcpy(fbuf, f->dirname, len);
2850 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2852 strlcpy(fbuf, f->basename, MAXPATHLEN);
2857 /* Do a non-recursive scan of the named directory, possibly ignoring all
2858 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2859 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2860 * buffer (the functions we call will append names onto the end, but the old
2861 * dir value will be restored on exit). */
2862 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2864 struct file_list *dirlist;
2865 char dirbuf[MAXPATHLEN];
2866 int save_recurse = recurse;
2867 int save_xfer_dirs = xfer_dirs;
2868 int save_prune_empty_dirs = prune_empty_dirs;
2871 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2872 if (dlen >= MAXPATHLEN)
2877 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2881 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2882 xfer_dirs = save_xfer_dirs;
2883 recurse = save_recurse;
2885 flist_count_offset += dirlist->used;
2887 prune_empty_dirs = 0;
2888 dirlist->sorted = dirlist->files;
2889 flist_sort_and_clean(dirlist, 0);
2890 prune_empty_dirs = save_prune_empty_dirs;
2893 output_flist(dirlist);