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.
32 extern int am_generator;
33 extern int inc_recurse;
34 extern int always_checksum;
36 extern int ignore_errors;
37 extern int numeric_ids;
41 extern int filesfrom_fd;
42 extern int one_file_system;
43 extern int copy_dirlinks;
44 extern int keep_dirlinks;
45 extern int preserve_uid;
46 extern int preserve_gid;
47 extern int preserve_acls;
48 extern int preserve_xattrs;
49 extern int preserve_links;
50 extern int preserve_hard_links;
51 extern int preserve_devices;
52 extern int preserve_specials;
56 extern int relative_paths;
57 extern int implied_dirs;
58 extern int file_extra_cnt;
59 extern int ignore_perishable;
60 extern int non_perishable_cnt;
61 extern int prune_empty_dirs;
62 extern int copy_links;
63 extern int copy_unsafe_links;
64 extern int protocol_version;
65 extern int sanitize_paths;
66 extern int munge_symlinks;
67 extern int need_unsorted_flist;
68 extern int sender_symlink_iconv;
69 extern int output_needs_newline;
70 extern int sender_keeps_checksum;
71 extern int unsort_ndx;
72 extern struct stats stats;
73 extern char *filesfrom_host;
75 extern char curr_dir[MAXPATHLEN];
77 extern struct chmod_mode_struct *chmod_modes;
79 extern struct filter_list_struct filter_list;
80 extern struct filter_list_struct daemon_filter_list;
83 extern int filesfrom_convert;
84 extern iconv_t ic_send, ic_recv;
87 #define PTR_SIZE (sizeof (struct file_struct *))
91 dev_t filesystem_dev; /* used to implement -x */
93 struct file_list *cur_flist, *first_flist, *dir_flist;
94 int send_dir_ndx = -1, send_dir_depth = -1;
95 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
96 int file_total = 0; /* total of all active items over all file-lists */
97 int flist_eof = 0; /* all the file-lists are now known */
100 #define SLASH_ENDING_NAME 1
101 #define DOTDIR_NAME 2
103 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
104 * internally, even if this platform does not allow files to have 64-bit inums.
105 * The only exception is if we're on a platform with no 64-bit type at all.
107 * Because we use read_longint() to get these off the wire, if you transfer
108 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
109 * machine with no 64-bit types then you will get an overflow error.
111 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
112 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
113 * be truncated. But it's a kind of silly thing to do anyhow. */
115 /* The tmp_* vars are used as a cache area by make_file() to store data
116 * that the sender doesn't need to remember in its file list. The data
117 * will survive just long enough to be used by send_file_entry(). */
118 static dev_t tmp_rdev;
119 #ifdef SUPPORT_HARD_LINKS
120 static int64 tmp_dev, tmp_ino;
122 static char tmp_sum[MAX_DIGEST_LEN];
124 static char empty_sum[MAX_DIGEST_LEN];
125 static int flist_count_offset; /* for --delete --progress */
126 static int dir_count = 0;
128 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
129 static void output_flist(struct file_list *flist);
131 void init_flist(void)
133 if (DEBUG_GTE(FLIST, 4)) {
134 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
135 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
137 checksum_len = protocol_version < 21 ? 2
138 : protocol_version < 30 ? MD4_DIGEST_LEN
142 static int show_filelist_p(void)
144 return INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
147 static void start_filelist_progress(char *kind)
149 rprintf(FCLIENT, "%s ... ", kind);
150 output_needs_newline = 1;
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 (INFO_GTE(FLIST, 2) && show_filelist_p() && (count % 100) == 0)
162 emit_filelist_progress(count);
165 static void finish_filelist_progress(const struct file_list *flist)
167 if (INFO_GTE(FLIST, 2)) {
168 /* This overwrites the progress line */
169 rprintf(FINFO, "%d file%sto consider\n",
170 flist->used, flist->used == 1 ? " " : "s ");
172 output_needs_newline = 0;
173 rprintf(FINFO, "done\n");
177 void show_flist_stats(void)
182 /* Stat either a symlink or its referent, depending on the settings of
183 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
185 * If path is the name of a symlink, then the linkbuf buffer (which must hold
186 * MAXPATHLEN chars) will be set to the symlink's target string.
188 * The stat structure pointed to by stp will contain information about the
189 * link or the referent as appropriate, if they exist. */
190 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
193 if (link_stat(path, stp, copy_dirlinks) < 0)
195 if (S_ISLNK(stp->st_mode)) {
196 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
199 linkbuf[llen] = '\0';
200 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
201 if (INFO_GTE(SYMSAFE, 1)) {
202 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
205 return x_stat(path, stp, NULL);
207 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
208 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
209 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
210 llen - SYMLINK_PREFIX_LEN + 1);
215 return x_stat(path, stp, NULL);
219 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
223 return x_stat(path, stp, NULL);
224 if (x_lstat(path, stp, NULL) < 0)
226 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
228 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
233 return x_stat(path, stp, NULL);
237 static inline int is_daemon_excluded(const char *fname, int is_dir)
239 if (daemon_filter_list.head
240 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
247 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
249 if (daemon_filter_list.head) {
252 while ((slash = strchr(slash+1, '/')) != NULL) {
255 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
264 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
273 /* This function is used to check if a file should be included/excluded
274 * from the list of files based on its name and type etc. The value of
275 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
276 static int is_excluded(const char *fname, int is_dir, int filter_level)
278 #if 0 /* This currently never happens, so avoid a useless compare. */
279 if (filter_level == NO_FILTERS)
282 if (is_daemon_excluded(fname, is_dir))
284 if (filter_level != ALL_FILTERS)
287 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
292 static void send_directory(int f, struct file_list *flist,
293 char *fbuf, int len, int flags);
295 static const char *pathname, *orig_dir;
296 static int pathname_len;
298 /* Make sure flist can hold at least flist->used + extra entries. */
299 static void flist_expand(struct file_list *flist, int extra)
301 struct file_struct **new_ptr;
303 if (flist->used + extra <= flist->malloced)
306 if (flist->malloced < FLIST_START)
307 flist->malloced = FLIST_START;
308 else if (flist->malloced >= FLIST_LINEAR)
309 flist->malloced += FLIST_LINEAR;
311 flist->malloced *= 2;
313 /* In case count jumped or we are starting the list
314 * with a known size just set it. */
315 if (flist->malloced < flist->used + extra)
316 flist->malloced = flist->used + extra;
318 new_ptr = realloc_array(flist->files, struct file_struct *,
321 if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
322 rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
324 big_num(sizeof flist->files[0] * flist->malloced, 0),
325 (new_ptr == flist->files) ? " not" : "");
328 flist->files = new_ptr;
331 out_of_memory("flist_expand");
334 static void flist_done_allocating(struct file_list *flist)
336 void *ptr = pool_boundary(flist->file_pool, 8*1024);
337 if (flist->pool_boundary == ptr)
338 flist->pool_boundary = NULL; /* list didn't use any pool memory */
340 flist->pool_boundary = ptr;
343 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
344 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
345 * with dir == NULL taken to be the starting directory, and dirlen < 0
346 * indicating that strdup(dir) should be called and then the -dirlen length
347 * value checked to ensure that it is not daemon-excluded. */
348 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
351 char *cpy = strdup(dir);
353 change_dir(orig_dir, CD_SKIP_CHDIR);
354 if (path_is_daemon_excluded(cpy, 0))
360 if (pathname == F_PATHNAME(file))
362 dir = F_PATHNAME(file);
364 dirlen = strlen(dir);
365 } else if (pathname == dir)
367 if (dir && *dir != '/')
368 change_dir(orig_dir, CD_SKIP_CHDIR);
372 pathname_len = dirlen;
377 if (!change_dir(dir, CD_NORMAL)) {
379 io_error |= IOERR_GENERAL;
380 rsyserr(FERROR_XFER, errno, "change_dir %s failed", full_fname(dir));
382 change_dir(orig_dir, CD_NORMAL);
391 static void send_file_entry(int f, const char *fname, struct file_struct *file,
393 const char *symlink_name, int symlink_len,
395 int ndx, int first_ndx)
397 static time_t modtime;
399 #ifdef SUPPORT_HARD_LINKS
403 static uint32 rdev_major;
406 static const char *user_name, *group_name;
407 static char lastname[MAXPATHLEN];
408 #ifdef SUPPORT_HARD_LINKS
409 int first_hlink_ndx = -1;
414 /* Initialize starting value of xflags. */
415 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
417 if (file->flags & FLAG_CONTENT_DIR)
418 xflags = file->flags & FLAG_TOP_DIR;
419 else if (file->flags & FLAG_IMPLIED_DIR)
420 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
422 xflags = XMIT_NO_CONTENT_DIR;
424 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
426 if (file->mode == mode)
427 xflags |= XMIT_SAME_MODE;
431 if ((preserve_devices && IS_DEVICE(mode))
432 || (preserve_specials && IS_SPECIAL(mode))) {
433 if (protocol_version < 28) {
434 if (tmp_rdev == rdev)
435 xflags |= XMIT_SAME_RDEV_pre28;
440 if ((uint32)major(rdev) == rdev_major)
441 xflags |= XMIT_SAME_RDEV_MAJOR;
443 rdev_major = major(rdev);
444 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
445 xflags |= XMIT_RDEV_MINOR_8_pre30;
447 } else if (protocol_version < 28)
448 rdev = MAKEDEV(0, 0);
449 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
450 xflags |= XMIT_SAME_UID;
454 user_name = add_uid(uid);
455 if (inc_recurse && user_name)
456 xflags |= XMIT_USER_NAME_FOLLOWS;
459 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
460 xflags |= XMIT_SAME_GID;
464 group_name = add_gid(gid);
465 if (inc_recurse && group_name)
466 xflags |= XMIT_GROUP_NAME_FOLLOWS;
469 if (file->modtime == modtime)
470 xflags |= XMIT_SAME_TIME;
472 modtime = file->modtime;
474 #ifdef SUPPORT_HARD_LINKS
476 if (protocol_version >= 30) {
477 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
478 first_hlink_ndx = (int32)(long)np->data - 1;
479 if (first_hlink_ndx < 0) {
480 np->data = (void*)(long)(first_ndx + ndx + 1);
481 xflags |= XMIT_HLINK_FIRST;
483 if (DEBUG_GTE(HLINK, 1)) {
484 if (first_hlink_ndx >= 0) {
485 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
486 who_am_i(), first_ndx + ndx, first_hlink_ndx,
487 first_hlink_ndx >= first_ndx ? "" : "un");
488 } else if (DEBUG_GTE(HLINK, 3)) {
489 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
490 who_am_i(), first_ndx + ndx,
491 big_num(tmp_dev, 0), big_num(tmp_ino, 0));
495 if (tmp_dev == dev) {
496 if (protocol_version >= 28)
497 xflags |= XMIT_SAME_DEV_pre30;
501 xflags |= XMIT_HLINKED;
506 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
508 l2 = strlen(fname+l1);
511 xflags |= XMIT_SAME_NAME;
513 xflags |= XMIT_LONG_NAME;
515 /* We must make sure we don't send a zero flag byte or the
516 * other end will terminate the flist transfer. Note that
517 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
518 * it's harmless way to add a bit to the first flag byte. */
519 if (protocol_version >= 28) {
520 if (!xflags && !S_ISDIR(mode))
521 xflags |= XMIT_TOP_DIR;
522 if ((xflags & 0xFF00) || !xflags) {
523 xflags |= XMIT_EXTENDED_FLAGS;
524 write_shortint(f, xflags);
526 write_byte(f, xflags);
528 if (!(xflags & 0xFF))
529 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
530 write_byte(f, xflags);
532 if (xflags & XMIT_SAME_NAME)
534 if (xflags & XMIT_LONG_NAME)
535 write_varint30(f, l2);
538 write_buf(f, fname + l1, l2);
540 #ifdef SUPPORT_HARD_LINKS
541 if (first_hlink_ndx >= 0) {
542 write_varint(f, first_hlink_ndx);
543 if (first_hlink_ndx >= first_ndx)
548 write_varlong30(f, F_LENGTH(file), 3);
549 if (!(xflags & XMIT_SAME_TIME)) {
550 if (protocol_version >= 30)
551 write_varlong(f, modtime, 4);
553 write_int(f, modtime);
555 if (!(xflags & XMIT_SAME_MODE))
556 write_int(f, to_wire_mode(mode));
557 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
558 if (protocol_version < 30)
561 write_varint(f, uid);
562 if (xflags & XMIT_USER_NAME_FOLLOWS) {
563 int len = strlen(user_name);
565 write_buf(f, user_name, len);
569 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
570 if (protocol_version < 30)
573 write_varint(f, gid);
574 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
575 int len = strlen(group_name);
577 write_buf(f, group_name, len);
581 if ((preserve_devices && IS_DEVICE(mode))
582 || (preserve_specials && IS_SPECIAL(mode))) {
583 if (protocol_version < 28) {
584 if (!(xflags & XMIT_SAME_RDEV_pre28))
585 write_int(f, (int)rdev);
587 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
588 write_varint30(f, major(rdev));
589 if (protocol_version >= 30)
590 write_varint(f, minor(rdev));
591 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
592 write_byte(f, minor(rdev));
594 write_int(f, minor(rdev));
600 write_varint30(f, symlink_len);
601 write_buf(f, symlink_name, symlink_len);
605 #ifdef SUPPORT_HARD_LINKS
606 if (tmp_dev != 0 && protocol_version < 30) {
607 if (protocol_version < 26) {
608 /* 32-bit dev_t and ino_t */
609 write_int(f, (int32)dev);
610 write_int(f, (int32)tmp_ino);
612 /* 64-bit dev_t and ino_t */
613 if (!(xflags & XMIT_SAME_DEV_pre30))
614 write_longint(f, dev);
615 write_longint(f, tmp_ino);
620 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
625 /* Prior to 28, we sent a useless set of nulls. */
628 write_buf(f, sum, checksum_len);
631 #ifdef SUPPORT_HARD_LINKS
634 strlcpy(lastname, fname, MAXPATHLEN);
636 if (S_ISREG(mode) || S_ISLNK(mode))
637 stats.total_size += F_LENGTH(file);
640 static struct file_struct *recv_file_entry(struct file_list *flist,
643 static int64 modtime;
645 #ifdef SUPPORT_HARD_LINKS
649 static uint32 rdev_major;
652 static uint16 gid_flags;
653 static char lastname[MAXPATHLEN], *lastdir;
654 static int lastdir_depth, lastdir_len = -1;
655 static unsigned int del_hier_name_len = 0;
656 static int in_del_hier = 0;
657 char thisname[MAXPATHLEN];
658 unsigned int l1 = 0, l2 = 0;
659 int alloc_len, basename_len, linkname_len;
660 int extra_len = file_extra_cnt * EXTRA_LEN;
661 int first_hlink_ndx = -1;
663 const char *basename;
664 struct file_struct *file;
668 if (xflags & XMIT_SAME_NAME)
671 if (xflags & XMIT_LONG_NAME)
672 l2 = read_varint30(f);
676 if (l2 >= MAXPATHLEN - l1) {
678 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
679 xflags, l1, l2, lastname, who_am_i());
680 overflow_exit("recv_file_entry");
683 strlcpy(thisname, lastname, l1 + 1);
684 read_sbuf(f, &thisname[l1], l2);
685 thisname[l1 + l2] = 0;
687 /* Abuse basename_len for a moment... */
688 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
691 if (ic_recv != (iconv_t)-1) {
694 INIT_CONST_XBUF(outbuf, thisname);
695 INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
697 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
698 io_error |= IOERR_GENERAL;
700 "[%s] cannot convert filename: %s (%s)\n",
701 who_am_i(), lastname, strerror(errno));
704 thisname[outbuf.len] = '\0';
709 clean_fname(thisname, 0);
712 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
714 if ((basename = strrchr(thisname, '/')) != NULL) {
715 int len = basename++ - thisname;
716 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
717 lastdir = new_array(char, len + 1);
718 memcpy(lastdir, thisname, len);
721 lastdir_depth = count_dir_elements(lastdir);
725 basename_len = strlen(basename) + 1; /* count the '\0' */
727 #ifdef SUPPORT_HARD_LINKS
728 if (protocol_version >= 30
729 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
730 first_hlink_ndx = read_varint(f);
731 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
733 "hard-link reference out of range: %d (%d)\n",
734 first_hlink_ndx, flist->ndx_start + flist->used);
735 exit_cleanup(RERR_PROTOCOL);
737 if (DEBUG_GTE(HLINK, 1)) {
738 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
739 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
740 first_hlink_ndx >= flist->ndx_start ? "" : "un");
742 if (first_hlink_ndx >= flist->ndx_start) {
743 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
744 file_length = F_LENGTH(first);
745 modtime = first->modtime;
748 uid = F_OWNER(first);
750 gid = F_GROUP(first);
751 if ((preserve_devices && IS_DEVICE(mode))
752 || (preserve_specials && IS_SPECIAL(mode))) {
753 uint32 *devp = F_RDEV_P(first);
754 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
755 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
757 if (preserve_links && S_ISLNK(mode))
758 linkname_len = strlen(F_SYMLINK(first)) + 1;
766 file_length = read_varlong30(f, 3);
767 if (!(xflags & XMIT_SAME_TIME)) {
768 if (protocol_version >= 30) {
769 modtime = read_varlong(f, 4);
770 #if SIZEOF_TIME_T < SIZEOF_INT64
771 if (!am_generator && (int64)(time_t)modtime != modtime) {
773 "Time value of %s truncated on receiver.\n",
778 modtime = read_int(f);
780 if (!(xflags & XMIT_SAME_MODE))
781 mode = from_wire_mode(read_int(f));
783 if (chmod_modes && !S_ISLNK(mode))
784 mode = tweak_mode(mode, chmod_modes);
786 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
787 if (protocol_version < 30)
788 uid = (uid_t)read_int(f);
790 uid = (uid_t)read_varint(f);
791 if (xflags & XMIT_USER_NAME_FOLLOWS)
792 uid = recv_user_name(f, uid);
793 else if (inc_recurse && am_root && !numeric_ids)
794 uid = match_uid(uid);
797 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
798 if (protocol_version < 30)
799 gid = (gid_t)read_int(f);
801 gid = (gid_t)read_varint(f);
803 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
804 gid = recv_group_name(f, gid, &gid_flags);
805 else if (inc_recurse && (!am_root || !numeric_ids))
806 gid = match_gid(gid, &gid_flags);
810 if ((preserve_devices && IS_DEVICE(mode))
811 || (preserve_specials && IS_SPECIAL(mode))) {
812 if (protocol_version < 28) {
813 if (!(xflags & XMIT_SAME_RDEV_pre28))
814 rdev = (dev_t)read_int(f);
817 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
818 rdev_major = read_varint30(f);
819 if (protocol_version >= 30)
820 rdev_minor = read_varint(f);
821 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
822 rdev_minor = read_byte(f);
824 rdev_minor = read_int(f);
825 rdev = MAKEDEV(rdev_major, rdev_minor);
827 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
829 } else if (protocol_version < 28)
830 rdev = MAKEDEV(0, 0);
833 if (preserve_links && S_ISLNK(mode)) {
834 linkname_len = read_varint30(f) + 1; /* count the '\0' */
835 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
836 rprintf(FERROR, "overflow: linkname_len=%d\n",
838 overflow_exit("recv_file_entry");
841 /* We don't know how much extra room we need to convert
842 * the as-yet-unread symlink data, so let's hope that a
843 * double-size buffer is plenty. */
844 if (sender_symlink_iconv)
848 linkname_len += SYMLINK_PREFIX_LEN;
854 #ifdef SUPPORT_HARD_LINKS
856 if (preserve_hard_links) {
857 if (protocol_version < 28 && S_ISREG(mode))
858 xflags |= XMIT_HLINKED;
859 if (xflags & XMIT_HLINKED)
860 extra_len += (inc_recurse+1) * EXTRA_LEN;
865 /* Directories need an extra int32 for the default ACL. */
866 if (preserve_acls && S_ISDIR(mode))
867 extra_len += EXTRA_LEN;
870 if (always_checksum && S_ISREG(mode))
871 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
873 #if SIZEOF_INT64 >= 8
874 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
875 extra_len += EXTRA_LEN;
877 if (file_length < 0) {
878 rprintf(FERROR, "Offset underflow: file-length is negative\n");
879 exit_cleanup(RERR_UNSUPPORTED);
882 if (inc_recurse && S_ISDIR(mode)) {
883 if (one_file_system) {
884 /* Room to save the dir's device for -x */
885 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
887 pool = dir_flist->file_pool;
889 pool = flist->file_pool;
891 #if EXTRA_ROUNDING > 0
892 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
893 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
896 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
898 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
900 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
902 file = (struct file_struct *)bp;
903 bp += FILE_STRUCT_LEN;
905 memcpy(bp, basename, basename_len);
907 #ifdef SUPPORT_HARD_LINKS
908 if (xflags & XMIT_HLINKED)
909 file->flags |= FLAG_HLINKED;
911 file->modtime = (time_t)modtime;
912 file->len32 = (uint32)file_length;
913 #if SIZEOF_INT64 >= 8
914 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
915 #if SIZEOF_CAPITAL_OFF_T < 8
916 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
917 exit_cleanup(RERR_UNSUPPORTED);
919 file->flags |= FLAG_LENGTH64;
920 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
929 file->flags |= gid_flags;
932 F_NDX(file) = flist->used + flist->ndx_start;
934 if (basename != thisname) {
935 file->dirname = lastdir;
936 F_DEPTH(file) = lastdir_depth + 1;
941 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
943 if (protocol_version >= 30) {
944 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
945 if (xflags & XMIT_TOP_DIR)
946 file->flags |= FLAG_TOP_DIR;
947 file->flags |= FLAG_CONTENT_DIR;
948 } else if (xflags & XMIT_TOP_DIR)
949 file->flags |= FLAG_IMPLIED_DIR;
950 } else if (xflags & XMIT_TOP_DIR) {
951 in_del_hier = recurse;
952 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
953 if (relative_paths && del_hier_name_len > 2
954 && lastname[del_hier_name_len-1] == '.'
955 && lastname[del_hier_name_len-2] == '/')
956 del_hier_name_len -= 2;
957 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
958 } else if (in_del_hier) {
959 if (!relative_paths || !del_hier_name_len
960 || (l1 >= del_hier_name_len
961 && lastname[del_hier_name_len] == '/'))
962 file->flags |= FLAG_CONTENT_DIR;
968 if ((preserve_devices && IS_DEVICE(mode))
969 || (preserve_specials && IS_SPECIAL(mode))) {
970 uint32 *devp = F_RDEV_P(file);
971 DEV_MAJOR(devp) = major(rdev);
972 DEV_MINOR(devp) = minor(rdev);
978 if (first_hlink_ndx >= flist->ndx_start) {
979 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
980 memcpy(bp, F_SYMLINK(first), linkname_len);
982 if (munge_symlinks) {
983 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
984 bp += SYMLINK_PREFIX_LEN;
985 linkname_len -= SYMLINK_PREFIX_LEN;
988 if (sender_symlink_iconv) {
991 alloc_len = linkname_len;
994 /* Read the symlink data into the end of our double-sized
995 * buffer and then convert it into the right spot. */
996 INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
997 linkname_len - 1, (size_t)-1);
998 read_sbuf(f, inbuf.buf, inbuf.len);
999 INIT_XBUF(outbuf, bp, 0, alloc_len);
1001 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
1002 io_error |= IOERR_GENERAL;
1003 rprintf(FERROR_XFER,
1004 "[%s] cannot convert symlink data for: %s (%s)\n",
1005 who_am_i(), full_fname(thisname), strerror(errno));
1006 bp = (char*)file->basename;
1010 bp[outbuf.len] = '\0';
1013 read_sbuf(f, bp, linkname_len - 1);
1014 if (sanitize_paths && !munge_symlinks && *bp)
1015 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1020 #ifdef SUPPORT_HARD_LINKS
1021 if (preserve_hard_links && xflags & XMIT_HLINKED) {
1022 if (protocol_version >= 30) {
1023 if (xflags & XMIT_HLINK_FIRST) {
1024 F_HL_GNUM(file) = flist->ndx_start + flist->used;
1026 F_HL_GNUM(file) = first_hlink_ndx;
1028 static int32 cnt = 0;
1029 struct ht_int64_node *np;
1032 if (protocol_version < 26) {
1036 if (!(xflags & XMIT_SAME_DEV_pre30))
1037 dev = read_longint(f);
1038 ino = read_longint(f);
1040 np = idev_find(dev, ino);
1041 ndx = (int32)(long)np->data - 1;
1044 np->data = (void*)(long)cnt;
1046 F_HL_GNUM(file) = ndx;
1051 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1055 /* Prior to 28, we get a useless set of nulls. */
1058 if (first_hlink_ndx >= flist->ndx_start) {
1059 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1060 memcpy(bp, F_SUM(first), checksum_len);
1062 read_buf(f, bp, checksum_len);
1066 if (preserve_acls && !S_ISLNK(mode))
1067 receive_acl(file, f);
1069 #ifdef SUPPORT_XATTRS
1070 if (preserve_xattrs)
1071 receive_xattr(file, f );
1074 if (S_ISREG(mode) || S_ISLNK(mode))
1075 stats.total_size += file_length;
1080 /* Create a file_struct for a named file by reading its stat() information
1081 * and performing extensive checks against global options.
1083 * Returns a pointer to the new file struct, or NULL if there was an error
1084 * or this file should be excluded.
1086 * Note: Any error (here or in send_file_name) that results in the omission of
1087 * an existent source file from the file list should set
1088 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1089 * destination if --delete is on. */
1090 struct file_struct *make_file(const char *fname, struct file_list *flist,
1091 STRUCT_STAT *stp, int flags, int filter_level)
1093 static char *lastdir;
1094 static int lastdir_len = -1;
1095 struct file_struct *file;
1096 char thisname[MAXPATHLEN];
1097 char linkname[MAXPATHLEN];
1098 int alloc_len, basename_len, linkname_len;
1099 int extra_len = file_extra_cnt * EXTRA_LEN;
1100 const char *basename;
1105 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1106 io_error |= IOERR_GENERAL;
1107 rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1110 clean_fname(thisname, 0);
1112 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1114 if (stp && S_ISDIR(stp->st_mode)) {
1115 st = *stp; /* Needed for "symlink/." with --relative. */
1116 *linkname = '\0'; /* make IBM code checker happy */
1117 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1118 int save_errno = errno;
1119 /* See if file is excluded before reporting an error. */
1120 if (filter_level != NO_FILTERS
1121 && (is_excluded(thisname, 0, filter_level)
1122 || is_excluded(thisname, 1, filter_level))) {
1123 if (ignore_perishable && save_errno != ENOENT)
1124 non_perishable_cnt++;
1127 if (save_errno == ENOENT) {
1128 #ifdef SUPPORT_LINKS
1129 /* When our options tell us to follow a symlink that
1130 * points nowhere, tell the user about the symlink
1131 * instead of giving a "vanished" message. We only
1132 * dereference a symlink if one of the --copy*links
1133 * options was specified, so there's no need for the
1134 * extra lstat() if one of these options isn't on. */
1135 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1136 && x_lstat(thisname, &st, NULL) == 0
1137 && S_ISLNK(st.st_mode)) {
1138 io_error |= IOERR_GENERAL;
1139 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1140 full_fname(thisname));
1144 enum logcode c = am_daemon && protocol_version < 28
1145 ? FERROR : FWARNING;
1146 io_error |= IOERR_VANISHED;
1147 rprintf(c, "file has vanished: %s\n",
1148 full_fname(thisname));
1151 io_error |= IOERR_GENERAL;
1152 rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
1153 full_fname(thisname));
1158 if (filter_level == NO_FILTERS)
1161 if (S_ISDIR(st.st_mode)) {
1163 rprintf(FINFO, "skipping directory %s\n", thisname);
1166 /* -x only affects dirs because we need to avoid recursing
1167 * into a mount-point directory, not to avoid copying a
1168 * symlinked file if -L (or similar) was specified. */
1169 if (one_file_system && st.st_dev != filesystem_dev
1170 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1171 if (one_file_system > 1) {
1172 if (INFO_GTE(MOUNT, 1)) {
1174 "[%s] skipping mount-point dir %s\n",
1175 who_am_i(), thisname);
1179 flags |= FLAG_MOUNT_DIR;
1180 flags &= ~FLAG_CONTENT_DIR;
1183 flags &= ~FLAG_CONTENT_DIR;
1185 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1186 if (ignore_perishable)
1187 non_perishable_cnt++;
1191 if (lp_ignore_nonreadable(module_id)) {
1192 #ifdef SUPPORT_LINKS
1193 if (!S_ISLNK(st.st_mode))
1195 if (access(thisname, R_OK) != 0)
1201 /* Only divert a directory in the main transfer. */
1203 if (flist->prev && S_ISDIR(st.st_mode)
1204 && flags & FLAG_DIVERT_DIRS) {
1205 /* Room for parent/sibling/next-child info. */
1206 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1208 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1209 pool = dir_flist->file_pool;
1211 pool = flist->file_pool;
1214 /* Directories need an extra int32 for the default ACL. */
1215 if (preserve_acls && S_ISDIR(st.st_mode))
1216 extra_len += EXTRA_LEN;
1221 if (DEBUG_GTE(FLIST, 2)) {
1222 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1223 who_am_i(), thisname, filter_level);
1226 if ((basename = strrchr(thisname, '/')) != NULL) {
1227 int len = basename++ - thisname;
1228 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1229 lastdir = new_array(char, len + 1);
1230 memcpy(lastdir, thisname, len);
1231 lastdir[len] = '\0';
1235 basename = thisname;
1236 basename_len = strlen(basename) + 1; /* count the '\0' */
1238 #ifdef SUPPORT_LINKS
1239 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1244 #if SIZEOF_CAPITAL_OFF_T >= 8
1245 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1246 extra_len += EXTRA_LEN;
1249 if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
1250 file_checksum(thisname, tmp_sum, st.st_size);
1251 if (sender_keeps_checksum)
1252 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1255 #if EXTRA_ROUNDING > 0
1256 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1257 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1260 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1263 bp = pool_alloc(pool, alloc_len, "make_file");
1265 if (!(bp = new_array(char, alloc_len)))
1266 out_of_memory("make_file");
1269 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1271 file = (struct file_struct *)bp;
1272 bp += FILE_STRUCT_LEN;
1274 memcpy(bp, basename, basename_len);
1276 #ifdef SUPPORT_HARD_LINKS
1277 if (preserve_hard_links && flist && flist->prev) {
1278 if (protocol_version >= 28
1279 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1280 : S_ISREG(st.st_mode)) {
1281 tmp_dev = (int64)st.st_dev + 1;
1282 tmp_ino = (int64)st.st_ino;
1288 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1289 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1290 tmp_rdev = st.st_rdev;
1295 file->flags = flags;
1296 file->modtime = st.st_mtime;
1297 file->len32 = (uint32)st.st_size;
1298 #if SIZEOF_CAPITAL_OFF_T >= 8
1299 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1300 file->flags |= FLAG_LENGTH64;
1301 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1304 file->mode = st.st_mode;
1305 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1306 F_OWNER(file) = st.st_uid;
1307 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1308 F_GROUP(file) = st.st_gid;
1310 if (basename != thisname)
1311 file->dirname = lastdir;
1313 #ifdef SUPPORT_LINKS
1315 memcpy(bp + basename_len, linkname, linkname_len);
1319 F_PATHNAME(file) = pathname;
1321 F_DEPTH(file) = extra_len / EXTRA_LEN;
1323 /* This code is only used by the receiver when it is building
1324 * a list of files for a delete pass. */
1325 if (keep_dirlinks && linkname_len && flist) {
1327 int save_mode = file->mode;
1328 file->mode = S_IFDIR; /* Find a directory with our name. */
1329 if (flist_find(dir_flist, file) >= 0
1330 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1331 file->modtime = st2.st_mtime;
1333 file->mode = st2.st_mode;
1335 F_OWNER(file) = st2.st_uid;
1337 F_GROUP(file) = st2.st_gid;
1339 file->mode = save_mode;
1342 if (basename_len == 0+1) {
1348 if (sender_keeps_checksum && S_ISREG(st.st_mode))
1349 memcpy(F_SUM(file), tmp_sum, checksum_len);
1352 F_NDX(file) = dir_count;
1357 /* Only called for temporary file_struct entries created by make_file(). */
1358 void unmake_file(struct file_struct *file)
1360 free(REQ_EXTRA(file, F_DEPTH(file)));
1363 static struct file_struct *send_file_name(int f, struct file_list *flist,
1364 const char *fname, STRUCT_STAT *stp,
1365 int flags, int filter_level)
1367 struct file_struct *file;
1369 file = make_file(fname, flist, stp, flags, filter_level);
1373 if (chmod_modes && !S_ISLNK(file->mode))
1374 file->mode = tweak_mode(file->mode, chmod_modes);
1377 char fbuf[MAXPATHLEN];
1378 #ifdef SUPPORT_LINKS
1379 const char *symlink_name;
1382 char symlink_buf[MAXPATHLEN];
1385 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1389 #ifdef SUPPORT_LINKS
1390 if (preserve_links && S_ISLNK(file->mode)) {
1391 symlink_name = F_SYMLINK(file);
1392 symlink_len = strlen(symlink_name);
1394 symlink_name = NULL;
1400 if (ic_send != (iconv_t)-1) {
1403 INIT_CONST_XBUF(outbuf, fbuf);
1405 if (file->dirname) {
1406 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1407 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1408 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1411 fbuf[outbuf.len++] = '/';
1414 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1415 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1417 io_error |= IOERR_GENERAL;
1418 rprintf(FERROR_XFER,
1419 "[%s] cannot convert filename: %s (%s)\n",
1420 who_am_i(), f_name(file, fbuf), strerror(errno));
1423 fbuf[outbuf.len] = '\0';
1425 #ifdef SUPPORT_LINKS
1426 if (symlink_len && sender_symlink_iconv) {
1427 INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
1428 INIT_CONST_XBUF(outbuf, symlink_buf);
1429 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1430 io_error |= IOERR_GENERAL;
1432 rprintf(FERROR_XFER,
1433 "[%s] cannot convert symlink data for: %s (%s)\n",
1434 who_am_i(), full_fname(fbuf), strerror(errno));
1437 symlink_buf[outbuf.len] = '\0';
1439 symlink_name = symlink_buf;
1440 symlink_len = outbuf.len;
1448 if (preserve_acls && !S_ISLNK(file->mode)) {
1449 sx.st.st_mode = file->mode;
1450 sx.acc_acl = sx.def_acl = NULL;
1451 if (get_acl(fname, &sx) < 0) {
1452 io_error |= IOERR_GENERAL;
1457 #ifdef SUPPORT_XATTRS
1458 if (preserve_xattrs) {
1460 if (get_xattr(fname, &sx) < 0) {
1461 io_error |= IOERR_GENERAL;
1467 send_file_entry(f, fbuf, file,
1468 #ifdef SUPPORT_LINKS
1469 symlink_name, symlink_len,
1471 flist->used, flist->ndx_start);
1474 if (preserve_acls && !S_ISLNK(file->mode)) {
1479 #ifdef SUPPORT_XATTRS
1480 if (preserve_xattrs) {
1481 F_XATTR(file) = send_xattr(&sx, f);
1487 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1489 flist_expand(flist, 1);
1490 flist->files[flist->used++] = file;
1495 static void send_if_directory(int f, struct file_list *flist,
1496 struct file_struct *file,
1497 char *fbuf, unsigned int ol,
1500 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1502 if (S_ISDIR(file->mode)
1503 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1505 unsigned int len = strlen(fbuf);
1506 if (len > 1 && fbuf[len-1] == '/')
1508 if (len >= MAXPATHLEN - 1) {
1509 io_error |= IOERR_GENERAL;
1510 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1514 save_filters = push_local_filters(fbuf, len);
1515 send_directory(f, flist, fbuf, len, flags);
1516 pop_local_filters(save_filters);
1523 static int file_compare(const void *file1, const void *file2)
1525 return f_name_cmp(*(struct file_struct **)file1,
1526 *(struct file_struct **)file2);
1529 /* The guts of a merge-sort algorithm. This was derived from the glibc
1530 * version, but I (Wayne) changed the merge code to do less copying and
1531 * to require only half the amount of temporary memory. */
1532 static void fsort_tmp(struct file_struct **fp, size_t num,
1533 struct file_struct **tmp)
1535 struct file_struct **f1, **f2, **t;
1544 fsort_tmp(f1, n1, tmp);
1546 fsort_tmp(f2, n2, tmp);
1548 while (f_name_cmp(*f1, *f2) <= 0) {
1555 memcpy(t, f1, n1 * PTR_SIZE);
1557 *f1++ = *f2++, n2--;
1559 while (n1 > 0 && n2 > 0) {
1560 if (f_name_cmp(*t, *f2) <= 0)
1563 *f1++ = *f2++, n2--;
1567 memcpy(f1, t, n1 * PTR_SIZE);
1570 /* This file-struct sorting routine makes sure that any identical names in
1571 * the file list stay in the same order as they were in the original list.
1572 * This is particularly vital in inc_recurse mode where we expect a sort
1573 * on the flist to match the exact order of a sort on the dir_flist. */
1574 static void fsort(struct file_struct **fp, size_t num)
1580 qsort(fp, num, PTR_SIZE, file_compare);
1582 struct file_struct **tmp = new_array(struct file_struct *,
1584 fsort_tmp(fp, num, tmp);
1589 /* We take an entire set of sibling dirs from the sorted flist and link them
1590 * into the tree, setting the appropriate parent/child/sibling pointers. */
1591 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1596 int32 *parent_dp = parent_ndx < 0 ? NULL
1597 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1599 flist_expand(dir_flist, dir_cnt);
1600 dir_flist->sorted = dir_flist->files;
1602 for (i = 0; dir_cnt; i++) {
1603 struct file_struct *file = from_flist->sorted[i];
1605 if (!S_ISDIR(file->mode))
1608 dir_flist->files[dir_flist->used++] = file;
1611 if (file->basename[0] == '.' && file->basename[1] == '\0')
1615 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1617 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1619 send_dir_ndx = dir_flist->used - 1;
1621 dp = F_DIR_NODE_P(file);
1622 DIR_PARENT(dp) = parent_ndx;
1623 DIR_FIRST_CHILD(dp) = -1;
1626 DIR_NEXT_SIBLING(dp) = -1;
1629 /* This function is normally called by the sender, but the receiving side also
1630 * calls it from get_dirlist() with f set to -1 so that we just construct the
1631 * file list in memory without sending it over the wire. Also, get_dirlist()
1632 * might call this with f set to -2, which also indicates that local filter
1633 * rules should be ignored. */
1634 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1641 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1642 int start = flist->used;
1643 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1645 assert(flist != NULL);
1647 if (!(d = opendir(fbuf))) {
1648 io_error |= IOERR_GENERAL;
1649 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1654 if (len != 1 || *fbuf != '/')
1657 remainder = MAXPATHLEN - (p - fbuf);
1659 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1660 char *dname = d_name(di);
1661 if (dname[0] == '.' && (dname[1] == '\0'
1662 || (dname[1] == '.' && dname[2] == '\0')))
1664 if (strlcpy(p, dname, remainder) >= remainder) {
1665 io_error |= IOERR_GENERAL;
1666 rprintf(FERROR_XFER,
1667 "cannot send long-named file %s\n",
1671 if (dname[0] == '\0') {
1672 io_error |= IOERR_GENERAL;
1673 rprintf(FERROR_XFER,
1674 "cannot send file with empty name in %s\n",
1679 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1685 io_error |= IOERR_GENERAL;
1686 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1691 if (f >= 0 && recurse && !divert_dirs) {
1692 int i, end = flist->used - 1;
1693 /* send_if_directory() bumps flist->used, so use "end". */
1694 for (i = start; i <= end; i++)
1695 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1699 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1700 char *start, char *limit, int flags, char name_type)
1702 static char lastpath[MAXPATHLEN] = "";
1703 static int lastpath_len = 0;
1704 static struct file_struct *lastpath_struct = NULL;
1705 struct file_struct *file;
1706 item_list *relname_list;
1707 relnamecache **rnpp;
1708 int len, need_new_dir, depth = 0;
1709 struct filter_list_struct save_filter_list = filter_list;
1711 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1712 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1715 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1716 && lastpath_len == limit - fname
1717 && strncmp(lastpath, fname, lastpath_len) == 0)
1722 char *tp = fname, *lp = lastpath;
1723 /* Skip any initial directories in our path that we
1724 * have in common with lastpath. */
1725 assert(start == fname);
1726 for ( ; ; tp++, lp++) {
1728 if (*lp == '/' || *lp == '\0')
1743 int save_copy_links = copy_links;
1744 int save_xfer_dirs = xfer_dirs;
1747 copy_links = xfer_dirs = 1;
1751 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1753 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1755 if (!inc_recurse && file && S_ISDIR(file->mode))
1756 change_local_filter_dir(fname, strlen(fname), depth);
1760 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1762 if (file && !S_ISDIR(file->mode))
1764 lastpath_struct = file;
1765 } else if (file && S_ISDIR(file->mode))
1766 change_local_filter_dir(fname, strlen(fname), ++depth);
1768 strlcpy(lastpath, fname, sizeof lastpath);
1769 lastpath_len = limit - fname;
1773 copy_links = save_copy_links;
1774 xfer_dirs = save_xfer_dirs;
1780 if (!lastpath_struct)
1781 goto done; /* dir must have vanished */
1783 len = strlen(limit+1);
1784 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1785 if (!relname_list) {
1786 if (!(relname_list = new0(item_list)))
1787 out_of_memory("send_implied_dirs");
1788 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1790 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1791 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1792 out_of_memory("send_implied_dirs");
1793 (*rnpp)->name_type = name_type;
1794 strlcpy((*rnpp)->fname, limit+1, len + 1);
1797 filter_list = save_filter_list;
1800 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1802 char fbuf[MAXPATHLEN];
1803 item_list *relname_list;
1804 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1808 dlen = strlen(fbuf);
1810 if (!change_pathname(file, NULL, 0))
1811 exit_cleanup(RERR_FILESELECT);
1813 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1815 if (file->flags & FLAG_CONTENT_DIR) {
1816 if (one_file_system) {
1818 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1819 io_error |= IOERR_GENERAL;
1820 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1824 filesystem_dev = st.st_dev;
1826 send_directory(f, flist, fbuf, dlen, flags);
1829 if (!relative_paths)
1832 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1836 for (j = 0; j < relname_list->count; j++) {
1838 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1839 char name_type = rnp->name_type;
1842 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1844 if (len >= (int)sizeof fbuf)
1845 continue; /* Impossible... */
1847 slash = strchr(fbuf+dlen+1, '/');
1849 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1853 if (name_type != NORMAL_NAME) {
1855 if (link_stat(fbuf, &st, 1) != 0) {
1856 io_error |= IOERR_GENERAL;
1857 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1861 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1863 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1869 void send_extra_file_list(int f, int at_least)
1871 struct file_list *flist;
1874 int old_cnt, save_io_error = io_error;
1879 /* Keep sending data until we have the requested number of
1880 * files in the upcoming file-lists. */
1881 old_cnt = cur_flist->used;
1882 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1883 old_cnt += flist->used;
1884 while (file_total - old_cnt < at_least) {
1885 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1886 int dir_ndx, dstart = dir_count;
1887 const char *pathname = F_PATHNAME(file);
1890 flist = flist_new(0, "send_extra_file_list");
1891 start_write = stats.total_written;
1894 dir_ndx = F_NDX(file);
1896 dir_ndx = send_dir_ndx;
1897 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1898 flist->parent_ndx = dir_ndx;
1900 send1extra(f, file, flist);
1901 prev_flags = file->flags;
1902 dp = F_DIR_NODE_P(file);
1904 /* If there are any duplicate directory names that follow, we
1905 * send all the dirs together in one file-list. The dir_flist
1906 * tree links all the child subdirs onto the last dup dir. */
1907 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1908 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1909 send_dir_ndx = dir_ndx;
1910 file = dir_flist->sorted[dir_ndx];
1911 /* Try to avoid some duplicate scanning of identical dirs. */
1912 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1913 file->flags &= ~FLAG_CONTENT_DIR;
1914 send1extra(f, file, flist);
1915 prev_flags = file->flags;
1916 dp = F_DIR_NODE_P(file);
1921 if (need_unsorted_flist) {
1922 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1923 out_of_memory("send_extra_file_list");
1924 memcpy(flist->sorted, flist->files,
1925 flist->used * sizeof (struct file_struct*));
1927 flist->sorted = flist->files;
1929 flist_sort_and_clean(flist, 0);
1931 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1932 flist_done_allocating(flist);
1934 file_total += flist->used;
1935 stats.flist_size += stats.total_written - start_write;
1936 stats.num_files += flist->used;
1937 if (DEBUG_GTE(FLIST, 3))
1938 output_flist(flist);
1940 if (DIR_FIRST_CHILD(dp) >= 0) {
1941 send_dir_ndx = DIR_FIRST_CHILD(dp);
1944 while (DIR_NEXT_SIBLING(dp) < 0) {
1945 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1946 write_ndx(f, NDX_FLIST_EOF);
1948 change_local_filter_dir(NULL, 0, 0);
1952 file = dir_flist->sorted[send_dir_ndx];
1953 dp = F_DIR_NODE_P(file);
1955 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1960 if (io_error != save_io_error && !ignore_errors)
1961 send_msg_int(MSG_IO_ERROR, io_error);
1964 struct file_list *send_file_list(int f, int argc, char *argv[])
1966 static const char *lastdir;
1967 static int lastdir_len = -1;
1971 struct file_list *flist;
1972 struct timeval start_tv, end_tv;
1975 int disable_buffering;
1976 int flags = recurse ? FLAG_CONTENT_DIR : 0;
1977 int reading_remotely = filesfrom_host != NULL;
1978 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1980 | (filesfrom_convert ? RL_CONVERT : 0)
1982 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1983 int implied_dot_dir = 0;
1985 rprintf(FLOG, "building file list\n");
1986 if (show_filelist_p())
1987 start_filelist_progress("building file list");
1988 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
1989 rprintf(FCLIENT, "sending incremental file list\n");
1991 start_write = stats.total_written;
1992 gettimeofday(&start_tv, NULL);
1995 orig_dir = strdup(curr_dir);
1997 if (relative_paths && protocol_version >= 30)
1998 implied_dirs = 1; /* We send flagged implied dirs */
2000 #ifdef SUPPORT_HARD_LINKS
2001 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2005 flist = cur_flist = flist_new(0, "send_file_list");
2007 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2008 flags |= FLAG_DIVERT_DIRS;
2010 dir_flist = cur_flist;
2012 disable_buffering = io_start_buffering_out(f);
2013 if (filesfrom_fd >= 0) {
2014 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2015 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2016 full_fname(argv[0]));
2017 exit_cleanup(RERR_FILESELECT);
2023 char fbuf[MAXPATHLEN], *fn, name_type;
2026 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2028 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2032 strlcpy(fbuf, *argv++, MAXPATHLEN);
2034 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2038 if (relative_paths) {
2039 /* We clean up fbuf below. */
2040 name_type = NORMAL_NAME;
2041 } else if (!len || fbuf[len - 1] == '/') {
2042 if (len == 2 && fbuf[0] == '.') {
2043 /* Turn "./" into just "." rather than "./." */
2046 if (len + 1 >= MAXPATHLEN)
2047 overflow_exit("send_file_list");
2051 name_type = DOTDIR_NAME;
2052 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2053 && (len == 2 || fbuf[len-3] == '/')) {
2054 if (len + 2 >= MAXPATHLEN)
2055 overflow_exit("send_file_list");
2059 name_type = DOTDIR_NAME;
2060 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2061 name_type = DOTDIR_NAME;
2063 name_type = NORMAL_NAME;
2067 if (!relative_paths) {
2068 p = strrchr(fbuf, '/');
2075 len -= p - fbuf + 1;
2080 if ((p = strstr(fbuf, "/./")) != NULL) {
2086 clean_fname(dir, 0);
2092 *--fn = '\0'; /* ensure room for '.' */
2095 /* A leading ./ can be used in relative mode to affect
2096 * the dest dir without its name being in the path. */
2097 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
2098 send_file_name(f, flist, ".", NULL,
2099 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
2101 implied_dot_dir = 1;
2103 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2104 | CFN_DROP_TRAILING_DOT_DIR);
2109 name_type = DOTDIR_NAME;
2110 } else if (fn[0] == '.')
2111 name_type = DOTDIR_NAME;
2112 } else if (fn[len-1] == '/') {
2114 if (len == 1 && *fn == '.')
2115 name_type = DOTDIR_NAME;
2117 name_type = SLASH_ENDING_NAME;
2119 /* Reject a ".." dir in the active part of the path. */
2120 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2121 if ((p[2] == '/' || p[2] == '\0')
2122 && (p == fn || p[-1] == '/')) {
2124 "found \"..\" dir in relative path: %s\n",
2126 exit_cleanup(RERR_SYNTAX);
2134 name_type = DOTDIR_NAME;
2137 dirlen = dir ? strlen(dir) : 0;
2138 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2139 if (!change_pathname(NULL, dir, -dirlen))
2142 lastdir_len = pathname_len;
2143 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2147 memmove(fbuf, fn, len + 1);
2149 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2150 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2151 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2152 io_error |= IOERR_GENERAL;
2153 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2158 /* A dot-dir should not be excluded! */
2159 if (name_type != DOTDIR_NAME
2160 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2163 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2164 rprintf(FINFO, "skipping directory %s\n", fbuf);
2168 if (inc_recurse && relative_paths && *fbuf) {
2169 if ((p = strchr(fbuf+1, '/')) != NULL) {
2170 if (p - fbuf == 1 && *fbuf == '.') {
2171 if ((fn = strchr(p+1, '/')) != NULL)
2175 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2179 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2180 /* Send the implied directories at the start of the
2181 * source spec, so we get their permissions right. */
2182 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2185 if (one_file_system)
2186 filesystem_dev = st.st_dev;
2188 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2189 struct file_struct *file;
2190 file = send_file_name(f, flist, fbuf, &st,
2191 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2196 if (name_type == DOTDIR_NAME) {
2197 if (send_dir_depth < 0) {
2199 change_local_filter_dir(fbuf, len, send_dir_depth);
2201 send_directory(f, flist, fbuf, len, flags);
2204 send_if_directory(f, flist, file, fbuf, len, flags);
2206 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2209 gettimeofday(&end_tv, NULL);
2210 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2211 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2212 if (stats.flist_buildtime == 0)
2213 stats.flist_buildtime = 1;
2216 write_byte(f, 0); /* Indicate end of file list */
2218 #ifdef SUPPORT_HARD_LINKS
2219 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2223 if (show_filelist_p())
2224 finish_filelist_progress(flist);
2226 gettimeofday(&end_tv, NULL);
2227 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2228 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2230 /* When converting names, both sides keep an unsorted file-list array
2231 * because the names will differ on the sending and receiving sides
2232 * (both sides will use the unsorted index number for each item). */
2234 /* Sort the list without removing any duplicates. This allows the
2235 * receiving side to ask for whatever name it kept. For incremental
2236 * recursion mode, the sender marks duplicate dirs so that it can
2237 * send them together in a single file-list. */
2238 if (need_unsorted_flist) {
2239 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2240 out_of_memory("send_file_list");
2241 memcpy(flist->sorted, flist->files,
2242 flist->used * sizeof (struct file_struct*));
2244 flist->sorted = flist->files;
2245 flist_sort_and_clean(flist, 0);
2246 file_total += flist->used;
2248 if (numeric_ids <= 0 && !inc_recurse)
2251 /* send the io_error flag */
2252 if (protocol_version < 30)
2253 write_int(f, ignore_errors ? 0 : io_error);
2254 else if (io_error && !ignore_errors)
2255 send_msg_int(MSG_IO_ERROR, io_error);
2257 if (disable_buffering)
2258 io_end_buffering_out();
2260 stats.flist_size = stats.total_written - start_write;
2261 stats.num_files = flist->used;
2263 if (DEBUG_GTE(FLIST, 3))
2264 output_flist(flist);
2266 if (DEBUG_GTE(FLIST, 2))
2267 rprintf(FINFO, "send_file_list done\n");
2271 add_dirs_to_tree(-1, flist, dir_count);
2272 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2273 flist->parent_ndx = -1;
2274 flist_done_allocating(flist);
2275 if (send_dir_ndx < 0) {
2276 write_ndx(f, NDX_FLIST_EOF);
2279 else if (file_total == 1) {
2280 /* If we're creating incremental file-lists and there
2281 * was just 1 item in the first file-list, send 1 more
2282 * file-list to check if this is a 1-file xfer. */
2283 send_extra_file_list(f, 1);
2290 struct file_list *recv_file_list(int f)
2292 struct file_list *flist;
2297 if (show_filelist_p())
2298 start_filelist_progress("receiving file list");
2299 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2300 rprintf(FCLIENT, "receiving incremental file list\n");
2301 rprintf(FLOG, "receiving file list\n");
2304 start_read = stats.total_read;
2306 #ifdef SUPPORT_HARD_LINKS
2307 if (preserve_hard_links && !first_flist)
2311 flist = flist_new(0, "recv_file_list");
2314 if (flist->ndx_start == 1)
2315 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2316 dstart = dir_flist->used;
2322 while ((flags = read_byte(f)) != 0) {
2323 struct file_struct *file;
2325 flist_expand(flist, 1);
2327 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2328 flags |= read_byte(f) << 8;
2329 file = recv_file_entry(flist, flags, f);
2331 if (inc_recurse && S_ISDIR(file->mode)) {
2332 flist_expand(dir_flist, 1);
2333 dir_flist->files[dir_flist->used++] = file;
2336 flist->files[flist->used++] = file;
2338 maybe_emit_filelist_progress(flist->used);
2340 if (DEBUG_GTE(FLIST, 2)) {
2341 char *name = f_name(file, NULL);
2342 rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
2345 file_total += flist->used;
2347 if (DEBUG_GTE(FLIST, 2))
2348 rprintf(FINFO, "received %d names\n", flist->used);
2350 if (show_filelist_p())
2351 finish_filelist_progress(flist);
2353 if (need_unsorted_flist) {
2354 /* Create an extra array of index pointers that we can sort for
2355 * the generator's use (for wading through the files in sorted
2356 * order and for calling flist_find()). We keep the "files"
2357 * list unsorted for our exchange of index numbers with the
2358 * other side (since their names may not sort the same). */
2359 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2360 out_of_memory("recv_file_list");
2361 memcpy(flist->sorted, flist->files,
2362 flist->used * sizeof (struct file_struct*));
2363 if (inc_recurse && dir_flist->used > dstart) {
2364 static int dir_flist_malloced = 0;
2365 if (dir_flist_malloced < dir_flist->malloced) {
2366 dir_flist->sorted = realloc_array(dir_flist->sorted,
2367 struct file_struct *,
2368 dir_flist->malloced);
2369 dir_flist_malloced = dir_flist->malloced;
2371 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2372 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2373 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2376 flist->sorted = flist->files;
2377 if (inc_recurse && dir_flist->used > dstart) {
2378 dir_flist->sorted = dir_flist->files;
2379 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2384 flist_done_allocating(flist);
2386 recv_id_list(f, flist);
2388 flist_sort_and_clean(flist, relative_paths);
2390 if (protocol_version < 30) {
2391 /* Recv the io_error flag */
2395 io_error |= read_int(f);
2396 } else if (inc_recurse && flist->ndx_start == 1) {
2397 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2398 flist->parent_ndx = -1;
2401 if (DEBUG_GTE(FLIST, 3))
2402 output_flist(flist);
2404 if (DEBUG_GTE(FLIST, 2))
2405 rprintf(FINFO, "recv_file_list done\n");
2407 stats.flist_size += stats.total_read - start_read;
2408 stats.num_files += flist->used;
2413 /* This is only used once by the receiver if the very first file-list
2414 * has exactly one item in it. */
2415 void recv_additional_file_list(int f)
2417 struct file_list *flist;
2418 int ndx = read_ndx(f);
2419 if (ndx == NDX_FLIST_EOF) {
2421 change_local_filter_dir(NULL, 0, 0);
2423 ndx = NDX_FLIST_OFFSET - ndx;
2424 if (ndx < 0 || ndx >= dir_flist->used) {
2425 ndx = NDX_FLIST_OFFSET - ndx;
2427 "[%s] Invalid dir index: %d (%d - %d)\n",
2428 who_am_i(), ndx, NDX_FLIST_OFFSET,
2429 NDX_FLIST_OFFSET - dir_flist->used + 1);
2430 exit_cleanup(RERR_PROTOCOL);
2432 if (DEBUG_GTE(FLIST, 3)) {
2433 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2436 flist = recv_file_list(f);
2437 flist->parent_ndx = ndx;
2441 /* Search for an identically-named item in the file list. Note that the
2442 * items must agree in their directory-ness, or no match is returned. */
2443 int flist_find(struct file_list *flist, struct file_struct *f)
2445 int low = flist->low, high = flist->high;
2446 int diff, mid, mid_up;
2448 while (low <= high) {
2449 mid = (low + high) / 2;
2450 if (F_IS_ACTIVE(flist->sorted[mid]))
2453 /* Scan for the next non-empty entry using the cached
2454 * distance values. If the value isn't fully up-to-
2455 * date, update it. */
2456 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2457 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2459 mid_up += F_DEPTH(flist->sorted[mid_up]);
2460 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2461 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2463 if (mid_up > high) {
2464 /* If there's nothing left above us, set high to
2465 * a non-empty entry below us and continue. */
2466 high = mid - (int)flist->sorted[mid]->len32;
2467 if (!F_IS_ACTIVE(flist->sorted[high])) {
2469 high -= (int)flist->sorted[high]->len32;
2470 } while (!F_IS_ACTIVE(flist->sorted[high]));
2471 flist->sorted[mid]->len32 = mid - high;
2476 diff = f_name_cmp(flist->sorted[mid_up], f);
2478 if (protocol_version < 29
2479 && S_ISDIR(flist->sorted[mid_up]->mode)
2480 != S_ISDIR(f->mode))
2493 * Free up any resources a file_struct has allocated
2494 * and clear the file.
2496 void clear_file(struct file_struct *file)
2498 /* The +1 zeros out the first char of the basename. */
2499 memset(file, 0, FILE_STRUCT_LEN + 1);
2500 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2501 * entry. Likewise for len32 in the opposite direction. We assume
2502 * that we're alone for now since flist_find() will adjust the counts
2503 * it runs into that aren't up-to-date. */
2504 file->len32 = F_DEPTH(file) = 1;
2507 /* Allocate a new file list. */
2508 struct file_list *flist_new(int flags, char *msg)
2510 struct file_list *flist;
2512 if (!(flist = new0(struct file_list)))
2515 if (flags & FLIST_TEMP) {
2516 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2521 /* This is a doubly linked list with prev looping back to
2522 * the end of the list, but the last next pointer is NULL. */
2524 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2527 if (!flist->file_pool)
2530 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2532 first_flist = cur_flist = flist->prev = flist;
2534 struct file_list *prev = first_flist->prev;
2536 flist->file_pool = first_flist->file_pool;
2538 flist->ndx_start = prev->ndx_start + prev->used + 1;
2539 flist->flist_num = prev->flist_num + 1;
2542 prev->next = first_flist->prev = flist;
2544 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2551 /* Free up all elements in a flist. */
2552 void flist_free(struct file_list *flist)
2555 /* Was FLIST_TEMP dir-list. */
2556 } else if (flist == flist->prev) {
2557 first_flist = cur_flist = NULL;
2561 if (flist == cur_flist)
2562 cur_flist = flist->next;
2563 if (flist == first_flist)
2564 first_flist = first_flist->next;
2566 flist->prev->next = flist->next;
2568 flist->next = first_flist;
2570 flist->next->prev = flist->prev;
2571 file_total -= flist->used;
2575 if (!flist->prev || !flist_cnt)
2576 pool_destroy(flist->file_pool);
2578 pool_free_old(flist->file_pool, flist->pool_boundary);
2580 if (flist->sorted && flist->sorted != flist->files)
2581 free(flist->sorted);
2586 /* This routine ensures we don't have any duplicate names in our file list.
2587 * duplicate names can cause corruption because of the pipelining. */
2588 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2590 char fbuf[MAXPATHLEN];
2595 if (flist->used == 0) {
2601 fsort(flist->sorted, flist->used);
2603 if (!am_sender || inc_recurse) {
2604 for (i = prev_i = 0; i < flist->used; i++) {
2605 if (F_IS_ACTIVE(flist->sorted[i])) {
2610 flist->low = prev_i;
2612 i = prev_i = flist->used - 1;
2616 while (++i < flist->used) {
2618 struct file_struct *file = flist->sorted[i];
2620 if (!F_IS_ACTIVE(file))
2622 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2624 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2625 int save_mode = file->mode;
2626 /* Make sure that this directory doesn't duplicate a
2627 * non-directory earlier in the list. */
2628 flist->high = prev_i;
2629 file->mode = S_IFREG;
2630 j = flist_find(flist, file);
2631 file->mode = save_mode;
2636 /* If one is a dir and the other is not, we want to
2637 * keep the dir because it might have contents in the
2638 * list. Otherwise keep the first one. */
2639 if (S_ISDIR(file->mode)) {
2640 struct file_struct *fp = flist->sorted[j];
2641 if (!S_ISDIR(fp->mode))
2645 file->flags |= FLAG_DUPLICATE;
2646 else { /* Make sure we merge our vital flags. */
2647 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2648 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2656 if (DEBUG_GTE(DUP, 1)) {
2658 "removing duplicate name %s from file list (%d)\n",
2659 f_name(file, fbuf), drop + flist->ndx_start);
2661 clear_file(flist->sorted[drop]);
2665 if (flist->low == drop) {
2667 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2676 flist->high = prev_i;
2679 /* We need to strip off the leading slashes for relative
2680 * paths, but this must be done _after_ the sorting phase. */
2681 for (i = flist->low; i <= flist->high; i++) {
2682 struct file_struct *file = flist->sorted[i];
2686 while (*file->dirname == '/')
2688 if (!*file->dirname)
2689 file->dirname = NULL;
2693 if (prune_empty_dirs && !am_sender) {
2694 int j, prev_depth = 0;
2696 prev_i = 0; /* It's OK that this isn't really true. */
2698 for (i = flist->low; i <= flist->high; i++) {
2699 struct file_struct *fp, *file = flist->sorted[i];
2701 /* This temporarily abuses the F_DEPTH() value for a
2702 * directory that is in a chain that might get pruned.
2703 * We restore the old value if it gets a reprieve. */
2704 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2705 /* Dump empty dirs when coming back down. */
2706 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2707 fp = flist->sorted[prev_i];
2708 if (F_DEPTH(fp) >= 0)
2710 prev_i = -F_DEPTH(fp)-1;
2713 prev_depth = F_DEPTH(file);
2714 if (is_excluded(f_name(file, fbuf), 1,
2716 /* Keep dirs through this dir. */
2717 for (j = prev_depth-1; ; j--) {
2718 fp = flist->sorted[prev_i];
2719 if (F_DEPTH(fp) >= 0)
2721 prev_i = -F_DEPTH(fp)-1;
2725 F_DEPTH(file) = -prev_i-1;
2728 /* Keep dirs through this non-dir. */
2729 for (j = prev_depth; ; j--) {
2730 fp = flist->sorted[prev_i];
2731 if (F_DEPTH(fp) >= 0)
2733 prev_i = -F_DEPTH(fp)-1;
2738 /* Dump all remaining empty dirs. */
2740 struct file_struct *fp = flist->sorted[prev_i];
2741 if (F_DEPTH(fp) >= 0)
2743 prev_i = -F_DEPTH(fp)-1;
2747 for (i = flist->low; i <= flist->high; i++) {
2748 if (F_IS_ACTIVE(flist->sorted[i]))
2752 for (i = flist->high; i >= flist->low; i--) {
2753 if (F_IS_ACTIVE(flist->sorted[i]))
2760 static void output_flist(struct file_list *flist)
2762 char uidbuf[16], gidbuf[16], depthbuf[16];
2763 struct file_struct *file;
2764 const char *root, *dir, *slash, *name, *trail;
2765 const char *who = who_am_i();
2768 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2769 who, flist->ndx_start, flist->used, flist->low, flist->high);
2770 for (i = 0; i < flist->used; i++) {
2771 file = flist->files[i];
2772 if ((am_root || am_sender) && uid_ndx) {
2773 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2778 static char parens[] = "(\0)\0\0\0";
2779 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2780 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2781 pp, F_GROUP(file), pp + 2);
2785 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2786 if (F_IS_ACTIVE(file)) {
2787 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2788 if ((dir = file->dirname) == NULL)
2792 name = file->basename;
2793 trail = S_ISDIR(file->mode) ? "/" : "";
2795 root = dir = slash = name = trail = "";
2797 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
2798 who, i + flist->ndx_start,
2799 root, dir, slash, name, trail,
2800 (int)file->mode, big_num(F_LENGTH(file), 0),
2801 uidbuf, gidbuf, file->flags);
2805 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2806 enum fnc_type { t_PATH, t_ITEM };
2808 static int found_prefix;
2810 /* Compare the names of two file_struct entities, similar to how strcmp()
2811 * would do if it were operating on the joined strings.
2813 * Some differences beginning with protocol_version 29: (1) directory names
2814 * are compared with an assumed trailing slash so that they compare in a
2815 * way that would cause them to sort immediately prior to any content they
2816 * may have; (2) a directory of any name compares after a non-directory of
2817 * any name at the same depth; (3) a directory with name "." compares prior
2818 * to anything else. These changes mean that a directory and a non-dir
2819 * with the same name will not compare as equal (protocol_version >= 29).
2821 * The dirname component can be an empty string, but the basename component
2822 * cannot (and never is in the current codebase). The basename component
2823 * may be NULL (for a removed item), in which case it is considered to be
2824 * after any existing item. */
2825 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2828 const uchar *c1, *c2;
2829 enum fnc_state state1, state2;
2830 enum fnc_type type1, type2;
2831 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2833 if (!f1 || !F_IS_ACTIVE(f1)) {
2834 if (!f2 || !F_IS_ACTIVE(f2))
2838 if (!f2 || !F_IS_ACTIVE(f2))
2841 c1 = (uchar*)f1->dirname;
2842 c2 = (uchar*)f2->dirname;
2846 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2847 c1 = (const uchar*)f1->basename;
2848 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2850 state1 = s_TRAILING;
2859 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2860 c2 = (const uchar*)f2->basename;
2861 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2863 state2 = s_TRAILING;
2873 return type1 == t_PATH ? 1 : -1;
2883 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2884 c1 = (const uchar*)f1->basename;
2885 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2887 state1 = s_TRAILING;
2893 state1 = s_TRAILING;
2894 if (type1 == t_PATH) {
2903 if (*c2 && type1 != type2)
2904 return type1 == t_PATH ? 1 : -1;
2913 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2914 c2 = (const uchar*)f2->basename;
2915 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2917 state2 = s_TRAILING;
2923 state2 = s_TRAILING;
2924 if (type2 == t_PATH) {
2937 return type1 == t_PATH ? 1 : -1;
2939 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2944 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2945 * not match if f2's basename is not an exact match of a path element in f1.
2946 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2947 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2951 return found_prefix;
2954 char *f_name_buf(void)
2956 static char names[5][MAXPATHLEN];
2957 static unsigned int n;
2959 n = (n + 1) % (sizeof names / sizeof names[0]);
2964 /* Return a copy of the full filename of a flist entry, using the indicated
2965 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2966 * done because we checked the size when creating the file_struct entry.
2968 char *f_name(const struct file_struct *f, char *fbuf)
2970 if (!f || !F_IS_ACTIVE(f))
2974 fbuf = f_name_buf();
2977 int len = strlen(f->dirname);
2978 memcpy(fbuf, f->dirname, len);
2980 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2982 strlcpy(fbuf, f->basename, MAXPATHLEN);
2987 /* Do a non-recursive scan of the named directory, possibly ignoring all
2988 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2989 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2990 * buffer (the functions we call will append names onto the end, but the old
2991 * dir value will be restored on exit). */
2992 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2994 struct file_list *dirlist;
2995 char dirbuf[MAXPATHLEN];
2996 int save_recurse = recurse;
2997 int save_xfer_dirs = xfer_dirs;
2998 int save_prune_empty_dirs = prune_empty_dirs;
3001 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3002 if (dlen >= MAXPATHLEN)
3007 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3011 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
3012 xfer_dirs = save_xfer_dirs;
3013 recurse = save_recurse;
3014 if (INFO_GTE(PROGRESS, 1))
3015 flist_count_offset += dirlist->used;
3017 prune_empty_dirs = 0;
3018 dirlist->sorted = dirlist->files;
3019 flist_sort_and_clean(dirlist, 0);
3020 prune_empty_dirs = save_prune_empty_dirs;
3022 if (DEBUG_GTE(FLIST, 3))
3023 output_flist(dirlist);