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) 2002-2007 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
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_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 struct stats stats;
67 extern char *filesfrom_host;
69 extern char *iconv_opt;
72 extern char curr_dir[MAXPATHLEN];
74 extern struct chmod_mode_struct *chmod_modes;
76 extern struct filter_list_struct filter_list;
77 extern struct filter_list_struct server_filter_list;
81 extern int filesfrom_convert;
82 extern int need_unsorted_flist;
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
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;
126 static int high_hlink_ndx;
128 static void clean_flist(struct file_list *flist, int strip_root);
129 static void output_flist(struct file_list *flist);
131 void init_flist(void)
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 verbose && xfer_dirs && !am_server && !inc_recurse;
147 static void start_filelist_progress(char *kind)
149 rprintf(FCLIENT, "%s ... ", kind);
150 if (verbose > 1 || do_progress)
151 rprintf(FCLIENT, "\n");
155 static void emit_filelist_progress(int count)
157 rprintf(FCLIENT, " %d files...\r", count);
160 static void maybe_emit_filelist_progress(int count)
162 if (do_progress && show_filelist_p() && (count % 100) == 0)
163 emit_filelist_progress(count);
166 static void finish_filelist_progress(const struct file_list *flist)
169 /* This overwrites the progress line */
170 rprintf(FINFO, "%d file%sto consider\n",
171 flist->used, flist->used == 1 ? " " : "s ");
173 rprintf(FINFO, "done\n");
176 void show_flist_stats(void)
181 /* Stat either a symlink or its referent, depending on the settings of
182 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
184 * If path is the name of a symlink, then the linkbuf buffer (which must hold
185 * MAXPATHLEN chars) will be set to the symlink's target string.
187 * The stat structure pointed to by stp will contain information about the
188 * link or the referent as appropriate, if they exist. */
189 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
192 if (link_stat(path, stp, copy_dirlinks) < 0)
194 if (S_ISLNK(stp->st_mode)) {
195 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
198 linkbuf[llen] = '\0';
199 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
201 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
204 return x_stat(path, stp, NULL);
209 return x_stat(path, stp, NULL);
213 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
217 return x_stat(path, stp, NULL);
218 if (x_lstat(path, stp, NULL) < 0)
220 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
222 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
227 return x_stat(path, stp, NULL);
231 /* This function is used to check if a file should be included/excluded
232 * from the list of files based on its name and type etc. The value of
233 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
234 static int is_excluded(char *fname, int is_dir, int filter_level)
236 #if 0 /* This currently never happens, so avoid a useless compare. */
237 if (filter_level == NO_FILTERS)
241 /* never exclude '.', even if somebody does --exclude '*' */
242 if (fname[0] == '.' && !fname[1])
244 /* Handle the -R version of the '.' dir. */
245 if (fname[0] == '/') {
246 int len = strlen(fname);
247 if (fname[len-1] == '.' && fname[len-2] == '/')
251 if (server_filter_list.head
252 && check_filter(&server_filter_list, fname, is_dir) < 0)
254 if (filter_level != ALL_FILTERS)
257 && check_filter(&filter_list, fname, is_dir) < 0)
262 static void send_directory(int f, struct file_list *flist,
263 char *fbuf, int len, int flags);
265 static const char *pathname, *orig_dir;
266 static int pathname_len;
269 /* Make sure flist can hold at least flist->used + extra entries. */
270 static void flist_expand(struct file_list *flist, int extra)
272 struct file_struct **new_ptr;
274 if (flist->used + extra <= flist->malloced)
277 if (flist->malloced < FLIST_START)
278 flist->malloced = FLIST_START;
279 else if (flist->malloced >= FLIST_LINEAR)
280 flist->malloced += FLIST_LINEAR;
282 flist->malloced *= 2;
284 /* In case count jumped or we are starting the list
285 * with a known size just set it. */
286 if (flist->malloced < flist->used + extra)
287 flist->malloced = flist->used + extra;
289 new_ptr = realloc_array(flist->files, struct file_struct *,
292 if (verbose >= 2 && flist->malloced != FLIST_START) {
293 rprintf(FCLIENT, "[%s] expand file_list pointer array to %.0f bytes, did%s move\n",
295 (double)sizeof flist->files[0] * flist->malloced,
296 (new_ptr == flist->files) ? " not" : "");
299 flist->files = new_ptr;
302 out_of_memory("flist_expand");
305 static void flist_done_allocating(struct file_list *flist)
307 void *ptr = pool_boundary(flist->file_pool, 8*1024);
308 if (flist->pool_boundary == ptr)
309 flist->pool_boundary = NULL; /* list didn't use any pool memory */
311 flist->pool_boundary = ptr;
314 int push_pathname(const char *dir, int len)
320 orig_dir = strdup(curr_dir);
322 if (pathname && !pop_dir(orig_dir)) {
323 rsyserr(FERROR, errno, "pop_dir %s failed",
324 full_fname(orig_dir));
325 exit_cleanup(RERR_FILESELECT);
328 if (dir && !push_dir(dir, 0)) {
329 io_error |= IOERR_GENERAL;
330 rsyserr(FERROR, errno, "push_dir %s failed in %s",
331 full_fname(dir), curr_dir);
336 pathname_len = len >= 0 ? len : dir ? (int)strlen(dir) : 0;
341 static void send_file_entry(int f, struct file_struct *file, int ndx, int first_ndx)
343 static time_t modtime;
345 #ifdef SUPPORT_HARD_LINKS
349 static uint32 rdev_major;
352 static char *user_name, *group_name;
353 static char lastname[MAXPATHLEN];
354 char fname[MAXPATHLEN];
355 int first_hlink_ndx = -1;
360 if (ic_send != (iconv_t)-1) {
363 INIT_CONST_XBUF(outbuf, fname);
366 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
367 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
368 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
371 outbuf.buf[outbuf.len++] = '/';
374 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
375 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
377 io_error |= IOERR_GENERAL;
379 "[%s] cannot convert filename: %s (%s)\n",
380 who_am_i(), f_name(file, fname), strerror(errno));
383 outbuf.buf[outbuf.len] = '\0';
388 /* Initialize starting value of xflags. */
389 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
390 if (file->flags & FLAG_CONTENT_DIR)
391 xflags = file->flags & FLAG_TOP_DIR;
392 else if (file->flags & FLAG_IMPLIED_DIR)
393 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
395 xflags = XMIT_NO_CONTENT_DIR;
397 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
399 if (file->mode == mode)
400 xflags |= XMIT_SAME_MODE;
404 if ((preserve_devices && IS_DEVICE(mode))
405 || (preserve_specials && IS_SPECIAL(mode))) {
406 if (protocol_version < 28) {
407 if (tmp_rdev == rdev)
408 xflags |= XMIT_SAME_RDEV_pre28;
413 if ((uint32)major(rdev) == rdev_major)
414 xflags |= XMIT_SAME_RDEV_MAJOR;
416 rdev_major = major(rdev);
417 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
418 xflags |= XMIT_RDEV_MINOR_8_pre30;
420 } else if (protocol_version < 28)
421 rdev = MAKEDEV(0, 0);
423 if ((uid_t)F_OWNER(file) == uid && *lastname)
424 xflags |= XMIT_SAME_UID;
427 if (uid_ndx && !numeric_ids) {
428 user_name = add_uid(uid);
429 if (inc_recurse && user_name)
430 xflags |= XMIT_USER_NAME_FOLLOWS;
435 if ((gid_t)F_GROUP(file) == gid && *lastname)
436 xflags |= XMIT_SAME_GID;
439 if (gid_ndx && !numeric_ids) {
440 group_name = add_gid(gid);
441 if (inc_recurse && group_name)
442 xflags |= XMIT_GROUP_NAME_FOLLOWS;
446 if (file->modtime == modtime)
447 xflags |= XMIT_SAME_TIME;
449 modtime = file->modtime;
451 #ifdef SUPPORT_HARD_LINKS
453 if (protocol_version >= 30) {
454 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
455 first_hlink_ndx = (int32)(long)np->data - 1;
456 if (first_hlink_ndx < 0) {
457 high_hlink_ndx = ndx + first_ndx;
458 np->data = (void*)(long)(high_hlink_ndx + 1);
459 xflags |= XMIT_HLINK_FIRST;
461 xflags |= XMIT_HLINKED;
463 if (tmp_dev == dev) {
464 if (protocol_version >= 28)
465 xflags |= XMIT_SAME_DEV_pre30;
468 xflags |= XMIT_HLINKED;
474 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
476 l2 = strlen(fname+l1);
479 xflags |= XMIT_SAME_NAME;
481 xflags |= XMIT_LONG_NAME;
483 /* We must make sure we don't send a zero flag byte or the
484 * other end will terminate the flist transfer. Note that
485 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
486 * it's harmless way to add a bit to the first flag byte. */
487 if (protocol_version >= 28) {
488 if (!xflags && !S_ISDIR(mode))
489 xflags |= XMIT_TOP_DIR;
490 if ((xflags & 0xFF00) || !xflags) {
491 xflags |= XMIT_EXTENDED_FLAGS;
492 write_shortint(f, xflags);
494 write_byte(f, xflags);
496 if (!(xflags & 0xFF))
497 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
498 write_byte(f, xflags);
500 if (xflags & XMIT_SAME_NAME)
502 if (xflags & XMIT_LONG_NAME)
503 write_varint30(f, l2);
506 write_buf(f, fname + l1, l2);
508 if (first_hlink_ndx >= 0) {
509 write_varint(f, first_hlink_ndx);
510 if (first_hlink_ndx >= first_ndx)
514 write_varlong30(f, F_LENGTH(file), 3);
515 if (!(xflags & XMIT_SAME_TIME)) {
516 if (protocol_version >= 30)
517 write_varlong(f, modtime, 4);
519 write_int(f, modtime);
521 if (!(xflags & XMIT_SAME_MODE))
522 write_int(f, to_wire_mode(mode));
523 if (uid_ndx && !(xflags & XMIT_SAME_UID)) {
524 if (protocol_version < 30)
527 write_varint(f, uid);
528 if (xflags & XMIT_USER_NAME_FOLLOWS) {
529 int len = strlen(user_name);
531 write_buf(f, user_name, len);
535 if (gid_ndx && !(xflags & XMIT_SAME_GID)) {
536 if (protocol_version < 30)
539 write_varint(f, gid);
540 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
541 int len = strlen(group_name);
543 write_buf(f, group_name, len);
547 if ((preserve_devices && IS_DEVICE(mode))
548 || (preserve_specials && IS_SPECIAL(mode))) {
549 if (protocol_version < 28) {
550 if (!(xflags & XMIT_SAME_RDEV_pre28))
551 write_int(f, (int)rdev);
553 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
554 write_varint30(f, major(rdev));
555 if (protocol_version >= 30)
556 write_varint(f, minor(rdev));
557 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
558 write_byte(f, minor(rdev));
560 write_int(f, minor(rdev));
565 if (preserve_links && S_ISLNK(mode)) {
566 const char *sl = F_SYMLINK(file);
567 int len = strlen(sl);
568 write_varint30(f, len);
569 write_buf(f, sl, len);
573 #ifdef SUPPORT_HARD_LINKS
574 if (tmp_dev != 0 && protocol_version < 30) {
575 if (protocol_version < 26) {
576 /* 32-bit dev_t and ino_t */
577 write_int(f, (int32)dev);
578 write_int(f, (int32)tmp_ino);
580 /* 64-bit dev_t and ino_t */
581 if (!(xflags & XMIT_SAME_DEV_pre30))
582 write_longint(f, dev);
583 write_longint(f, tmp_ino);
588 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
593 /* Prior to 28, we sent a useless set of nulls. */
596 write_buf(f, sum, checksum_len);
600 strlcpy(lastname, fname, MAXPATHLEN);
602 if (S_ISREG(mode) || S_ISLNK(mode))
603 stats.total_size += F_LENGTH(file);
606 static struct file_struct *recv_file_entry(struct file_list *flist,
609 static int64 modtime;
611 #ifdef SUPPORT_HARD_LINKS
615 static uint32 rdev_major;
618 static uint16 gid_flags;
619 static char lastname[MAXPATHLEN], *lastdir;
620 static int lastdir_depth, lastdir_len = -1;
621 static unsigned int del_hier_name_len = 0;
622 static int in_del_hier = 0;
623 char thisname[MAXPATHLEN];
624 unsigned int l1 = 0, l2 = 0;
625 int alloc_len, basename_len, linkname_len;
626 int extra_len = file_extra_cnt * EXTRA_LEN;
627 int first_hlink_ndx = -1;
629 const char *basename;
630 struct file_struct *file;
634 if (xflags & XMIT_SAME_NAME)
637 if (xflags & XMIT_LONG_NAME)
638 l2 = read_varint30(f);
642 if (l2 >= MAXPATHLEN - l1) {
644 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
645 xflags, l1, l2, lastname, who_am_i());
646 overflow_exit("recv_file_entry");
649 strlcpy(thisname, lastname, l1 + 1);
650 read_sbuf(f, &thisname[l1], l2);
651 thisname[l1 + l2] = 0;
653 /* Abuse basename_len for a moment... */
654 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
657 if (ic_recv != (iconv_t)-1) {
660 INIT_CONST_XBUF(outbuf, thisname);
661 INIT_XBUF(inbuf, lastname, basename_len, -1);
663 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
664 io_error |= IOERR_GENERAL;
666 "[%s] cannot convert filename: %s (%s)\n",
667 who_am_i(), lastname, strerror(errno));
670 outbuf.buf[outbuf.len] = '\0';
674 clean_fname(thisname, 0);
677 sanitize_path(thisname, thisname, "", 0, NULL);
679 if ((basename = strrchr(thisname, '/')) != NULL) {
680 int len = basename++ - thisname;
681 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
682 lastdir = new_array(char, len + 1);
683 memcpy(lastdir, thisname, len);
686 lastdir_depth = count_dir_elements(lastdir);
690 basename_len = strlen(basename) + 1; /* count the '\0' */
692 #ifdef SUPPORT_HARD_LINKS
693 if (protocol_version >= 30
694 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
695 first_hlink_ndx = read_varint(f);
696 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
698 "hard-link reference out of range: %d (%d)\n",
699 first_hlink_ndx, flist->ndx_start + flist->used);
700 exit_cleanup(RERR_PROTOCOL);
702 if (first_hlink_ndx >= flist->ndx_start) {
703 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
704 file_length = F_LENGTH(first);
705 modtime = first->modtime;
708 uid = F_OWNER(first);
710 gid = F_GROUP(first);
711 if ((preserve_devices && IS_DEVICE(mode))
712 || (preserve_specials && IS_SPECIAL(mode))) {
713 uint32 *devp = F_RDEV_P(first);
714 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
715 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
717 if (preserve_links && S_ISLNK(mode))
718 linkname_len = strlen(F_SYMLINK(first)) + 1;
726 file_length = read_varlong30(f, 3);
727 if (!(xflags & XMIT_SAME_TIME)) {
728 if (protocol_version >= 30) {
729 modtime = read_varlong(f, 4);
730 #if SIZEOF_TIME_T < SIZEOF_INT64
731 if ((modtime > INT_MAX || modtime < INT_MIN) && !am_generator) {
733 "Time value of %s truncated on receiver.\n",
738 modtime = read_int(f);
740 if (!(xflags & XMIT_SAME_MODE))
741 mode = from_wire_mode(read_int(f));
743 if (chmod_modes && !S_ISLNK(mode))
744 mode = tweak_mode(mode, chmod_modes);
746 if (uid_ndx && !(xflags & XMIT_SAME_UID)) {
747 if (protocol_version < 30)
748 uid = (uid_t)read_int(f);
750 uid = (uid_t)read_varint(f);
751 if (xflags & XMIT_USER_NAME_FOLLOWS)
752 uid = recv_user_name(f, uid);
753 else if (inc_recurse && am_root && !numeric_ids)
754 uid = match_uid(uid);
757 if (gid_ndx && !(xflags & XMIT_SAME_GID)) {
758 if (protocol_version < 30)
759 gid = (gid_t)read_int(f);
761 gid = (gid_t)read_varint(f);
763 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
764 gid = recv_group_name(f, gid, &gid_flags);
765 else if (inc_recurse && (!am_root || !numeric_ids))
766 gid = match_gid(gid, &gid_flags);
770 if ((preserve_devices && IS_DEVICE(mode))
771 || (preserve_specials && IS_SPECIAL(mode))) {
772 if (protocol_version < 28) {
773 if (!(xflags & XMIT_SAME_RDEV_pre28))
774 rdev = (dev_t)read_int(f);
777 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
778 rdev_major = read_varint30(f);
779 if (protocol_version >= 30)
780 rdev_minor = read_varint(f);
781 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
782 rdev_minor = read_byte(f);
784 rdev_minor = read_int(f);
785 rdev = MAKEDEV(rdev_major, rdev_minor);
787 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
789 } else if (protocol_version < 28)
790 rdev = MAKEDEV(0, 0);
793 if (preserve_links && S_ISLNK(mode)) {
794 linkname_len = read_varint30(f) + 1; /* count the '\0' */
795 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
796 rprintf(FERROR, "overflow: linkname_len=%d\n",
798 overflow_exit("recv_file_entry");
805 #ifdef SUPPORT_HARD_LINKS
807 if (preserve_hard_links) {
808 if (protocol_version < 28 && S_ISREG(mode))
809 xflags |= XMIT_HLINKED;
810 if (xflags & XMIT_HLINKED)
811 extra_len += (inc_recurse+1) * EXTRA_LEN;
816 /* We need one or two index int32s when we're preserving ACLs. */
818 extra_len += (S_ISDIR(mode) ? 2 : 1) * EXTRA_LEN;
821 if (always_checksum && S_ISREG(mode))
822 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
824 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
825 extra_len += EXTRA_LEN;
827 #if EXTRA_ROUNDING > 0
828 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
829 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
832 if (inc_recurse && S_ISDIR(mode)) {
833 if (one_file_system) {
834 /* Room to save the dir's device for -x */
835 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
837 pool = dir_flist->file_pool;
839 pool = flist->file_pool;
841 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
843 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
845 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
847 file = (struct file_struct *)bp;
848 bp += FILE_STRUCT_LEN;
850 memcpy(bp, basename, basename_len);
851 bp += basename_len + linkname_len; /* skip space for symlink too */
853 #ifdef SUPPORT_HARD_LINKS
854 if (xflags & XMIT_HLINKED)
855 file->flags |= FLAG_HLINKED;
857 file->modtime = (time_t)modtime;
858 file->len32 = (uint32)file_length;
859 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
860 file->flags |= FLAG_LENGTH64;
861 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
868 file->flags |= gid_flags;
872 F_NDX(file) = flist->used + flist->ndx_start;
875 if (basename != thisname) {
876 file->dirname = lastdir;
877 F_DEPTH(file) = lastdir_depth + 1;
882 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
884 if (protocol_version >= 30) {
885 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
886 if (xflags & XMIT_TOP_DIR)
887 file->flags |= FLAG_TOP_DIR;
888 file->flags |= FLAG_CONTENT_DIR;
889 } else if (xflags & XMIT_TOP_DIR)
890 file->flags |= FLAG_IMPLIED_DIR;
891 } else if (xflags & XMIT_TOP_DIR) {
892 in_del_hier = recurse;
893 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
894 if (relative_paths && del_hier_name_len > 2
895 && lastname[del_hier_name_len-1] == '.'
896 && lastname[del_hier_name_len-2] == '/')
897 del_hier_name_len -= 2;
898 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
899 } else if (in_del_hier) {
900 if (!relative_paths || !del_hier_name_len
901 || (l1 >= del_hier_name_len
902 && lastname[del_hier_name_len] == '/'))
903 file->flags |= FLAG_CONTENT_DIR;
909 if ((preserve_devices && IS_DEVICE(mode))
910 || (preserve_specials && IS_SPECIAL(mode))) {
911 uint32 *devp = F_RDEV_P(file);
912 DEV_MAJOR(devp) = major(rdev);
913 DEV_MINOR(devp) = minor(rdev);
918 bp = (char*)file->basename + basename_len;
919 if (first_hlink_ndx >= flist->ndx_start) {
920 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
921 memcpy(bp, F_SYMLINK(first), linkname_len);
923 read_sbuf(f, bp, linkname_len - 1);
925 sanitize_path(bp, bp, "", lastdir_depth, NULL);
929 #ifdef SUPPORT_HARD_LINKS
930 if (preserve_hard_links && xflags & XMIT_HLINKED) {
931 if (protocol_version >= 30) {
932 if (xflags & XMIT_HLINK_FIRST) {
933 high_hlink_ndx = flist->ndx_start + flist->used;
934 F_HL_GNUM(file) = high_hlink_ndx;
936 F_HL_GNUM(file) = first_hlink_ndx;
938 static int32 cnt = 0;
939 struct ht_int64_node *np;
942 if (protocol_version < 26) {
946 if (!(xflags & XMIT_SAME_DEV_pre30))
947 dev = read_longint(f);
948 ino = read_longint(f);
950 np = idev_find(dev, ino);
951 ndx = (int32)(long)np->data - 1;
954 np->data = (void*)(long)cnt;
956 F_HL_GNUM(file) = ndx;
961 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
965 /* Prior to 28, we get a useless set of nulls. */
968 if (first_hlink_ndx >= flist->ndx_start) {
969 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
970 memcpy(bp, F_SUM(first), checksum_len);
972 read_buf(f, bp, checksum_len);
976 if (preserve_acls && !S_ISLNK(mode))
977 receive_acl(file, f);
979 #ifdef SUPPORT_XATTRS
981 receive_xattr(file, f );
984 if (S_ISREG(mode) || S_ISLNK(mode))
985 stats.total_size += file_length;
990 /* Create a file_struct for a named file by reading its stat() information
991 * and performing extensive checks against global options.
993 * Returns a pointer to the new file struct, or NULL if there was an error
994 * or this file should be excluded. */
995 struct file_struct *make_file(const char *fname, struct file_list *flist,
996 STRUCT_STAT *stp, int flags, int filter_level)
998 static char *lastdir;
999 static int lastdir_len = -1;
1000 struct file_struct *file;
1001 char thisname[MAXPATHLEN];
1002 char linkname[MAXPATHLEN];
1003 int alloc_len, basename_len, linkname_len;
1004 int extra_len = file_extra_cnt * EXTRA_LEN;
1005 const char *basename;
1010 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1011 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1014 clean_fname(thisname, 0);
1016 sanitize_path(thisname, thisname, "", 0, NULL);
1018 if (stp && S_ISDIR(stp->st_mode)) {
1019 st = *stp; /* Needed for "symlink/." with --relative. */
1020 *linkname = '\0'; /* make IBM code checker happy */
1021 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1022 int save_errno = errno;
1023 /* See if file is excluded before reporting an error. */
1024 if (filter_level != NO_FILTERS
1025 && (is_excluded(thisname, 0, filter_level)
1026 || is_excluded(thisname, 1, filter_level))) {
1027 if (ignore_perishable && save_errno != ENOENT)
1028 non_perishable_cnt++;
1031 if (save_errno == ENOENT) {
1032 #ifdef SUPPORT_LINKS
1033 /* Avoid "vanished" error if symlink points nowhere. */
1034 if (copy_links && x_lstat(thisname, &st, NULL) == 0
1035 && S_ISLNK(st.st_mode)) {
1036 io_error |= IOERR_GENERAL;
1037 rprintf(FERROR, "symlink has no referent: %s\n",
1038 full_fname(thisname));
1042 enum logcode c = am_daemon && protocol_version < 28
1044 io_error |= IOERR_VANISHED;
1045 rprintf(c, "file has vanished: %s\n",
1046 full_fname(thisname));
1049 io_error |= IOERR_GENERAL;
1050 rsyserr(FERROR, save_errno, "readlink %s failed",
1051 full_fname(thisname));
1056 /* backup.c calls us with filter_level set to NO_FILTERS. */
1057 if (filter_level == NO_FILTERS)
1060 if (S_ISDIR(st.st_mode)) {
1062 rprintf(FINFO, "skipping directory %s\n", thisname);
1065 /* -x only affects dirs because we need to avoid recursing
1066 * into a mount-point directory, not to avoid copying a
1067 * symlinked file if -L (or similar) was specified. */
1068 if (one_file_system && st.st_dev != filesystem_dev
1069 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1070 if (one_file_system > 1) {
1073 "[%s] skipping mount-point dir %s\n",
1074 who_am_i(), thisname);
1078 flags |= FLAG_MOUNT_DIR;
1079 flags &= ~FLAG_CONTENT_DIR;
1082 flags &= ~FLAG_CONTENT_DIR;
1084 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1085 if (ignore_perishable)
1086 non_perishable_cnt++;
1090 if (lp_ignore_nonreadable(module_id)) {
1091 #ifdef SUPPORT_LINKS
1092 if (!S_ISLNK(st.st_mode))
1094 if (access(thisname, R_OK) != 0)
1100 /* Only divert a directory in the main transfer. */
1102 if (flist->prev && S_ISDIR(st.st_mode)
1103 && flags & FLAG_DIVERT_DIRS) {
1104 /* Room for parent/sibling/next-child info. */
1105 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1107 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1109 pool = dir_flist->file_pool;
1111 pool = flist->file_pool;
1116 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1117 who_am_i(), thisname, filter_level);
1120 if ((basename = strrchr(thisname, '/')) != NULL) {
1121 int len = basename++ - thisname;
1122 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1123 lastdir = new_array(char, len + 1);
1124 memcpy(lastdir, thisname, len);
1125 lastdir[len] = '\0';
1129 basename = thisname;
1130 basename_len = strlen(basename) + 1; /* count the '\0' */
1132 #ifdef SUPPORT_LINKS
1133 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1138 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1139 extra_len += EXTRA_LEN;
1141 #if EXTRA_ROUNDING > 0
1142 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1143 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1146 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1149 bp = pool_alloc(pool, alloc_len, "make_file");
1151 if (!(bp = new_array(char, alloc_len)))
1152 out_of_memory("make_file");
1155 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1157 file = (struct file_struct *)bp;
1158 bp += FILE_STRUCT_LEN;
1160 memcpy(bp, basename, basename_len);
1161 bp += basename_len + linkname_len; /* skip space for symlink too */
1163 #ifdef SUPPORT_HARD_LINKS
1164 if (preserve_hard_links && flist && flist->prev) {
1165 if (protocol_version >= 28
1166 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1167 : S_ISREG(st.st_mode)) {
1168 tmp_dev = st.st_dev;
1169 tmp_ino = st.st_ino;
1175 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1176 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1177 tmp_rdev = st.st_rdev;
1182 file->flags = flags;
1183 file->modtime = st.st_mtime;
1184 file->len32 = (uint32)st.st_size;
1185 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1186 file->flags |= FLAG_LENGTH64;
1187 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1189 file->mode = st.st_mode;
1191 F_OWNER(file) = st.st_uid;
1193 F_GROUP(file) = st.st_gid;
1195 if (basename != thisname)
1196 file->dirname = lastdir;
1198 #ifdef SUPPORT_LINKS
1200 bp = (char*)file->basename + basename_len;
1201 memcpy(bp, linkname, linkname_len);
1205 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1206 file_checksum(thisname, tmp_sum, st.st_size);
1208 F_PATHNAME(file) = pathname;
1210 /* This code is only used by the receiver when it is building
1211 * a list of files for a delete pass. */
1212 if (keep_dirlinks && linkname_len && flist) {
1214 int save_mode = file->mode;
1215 file->mode = S_IFDIR; /* Find a directory with our name. */
1216 if (flist_find(dir_flist, file) >= 0
1217 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1218 file->modtime = st2.st_mtime;
1220 file->mode = st2.st_mode;
1222 F_OWNER(file) = st2.st_uid;
1224 F_GROUP(file) = st2.st_gid;
1226 file->mode = save_mode;
1229 if (basename_len == 0+1)
1234 F_NDX(file) = dir_count - 1;
1240 /* Only called for temporary file_struct entries created by make_file(). */
1241 void unmake_file(struct file_struct *file)
1243 int extra_cnt = file_extra_cnt + LEN64_BUMP(file);
1244 #if EXTRA_ROUNDING > 0
1245 if (extra_cnt & EXTRA_ROUNDING)
1246 extra_cnt = (extra_cnt | EXTRA_ROUNDING) + 1;
1248 free(REQ_EXTRA(file, extra_cnt));
1251 static struct file_struct *send_file_name(int f, struct file_list *flist,
1252 char *fname, STRUCT_STAT *stp,
1253 int flags, int filter_level)
1255 struct file_struct *file;
1256 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1260 file = make_file(fname, flist, stp, flags, filter_level);
1264 if (chmod_modes && !S_ISLNK(file->mode))
1265 file->mode = tweak_mode(file->mode, chmod_modes);
1268 if (preserve_acls && !S_ISLNK(file->mode) && f >= 0) {
1269 sx.st.st_mode = file->mode;
1270 sx.acc_acl = sx.def_acl = NULL;
1271 if (get_acl(fname, &sx) < 0)
1275 #ifdef SUPPORT_XATTRS
1276 if (preserve_xattrs && f >= 0) {
1278 if (get_xattr(fname, &sx) < 0)
1283 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1285 flist_expand(flist, 1);
1286 flist->files[flist->used++] = file;
1288 send_file_entry(f, file, flist->used - 1, flist->ndx_start);
1290 if (preserve_acls && !S_ISLNK(file->mode)) {
1295 #ifdef SUPPORT_XATTRS
1296 if (preserve_xattrs) {
1297 F_XATTR(file) = send_xattr(&sx, f);
1305 static void send_if_directory(int f, struct file_list *flist,
1306 struct file_struct *file,
1307 char *fbuf, unsigned int ol,
1310 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1312 if (S_ISDIR(file->mode)
1313 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1315 unsigned int len = strlen(fbuf);
1316 if (len > 1 && fbuf[len-1] == '/')
1318 if (len >= MAXPATHLEN - 1) {
1319 io_error |= IOERR_GENERAL;
1320 rprintf(FERROR, "skipping long-named directory: %s\n",
1324 save_filters = push_local_filters(fbuf, len);
1325 send_directory(f, flist, fbuf, len, flags);
1326 pop_local_filters(save_filters);
1333 static int file_compare(const void *file1, const void *file2)
1335 return f_name_cmp(*(struct file_struct **)file1,
1336 *(struct file_struct **)file2);
1339 /* The guts of a merge-sort algorithm. This was derived from the glibc
1340 * version, but I (Wayne) changed the merge code to do less copying and
1341 * to require only half the amount of temporary memory. */
1342 static void fsort_tmp(struct file_struct **fp, size_t num,
1343 struct file_struct **tmp)
1345 struct file_struct **f1, **f2, **t;
1354 fsort_tmp(f1, n1, tmp);
1356 fsort_tmp(f2, n2, tmp);
1358 while (f_name_cmp(*f1, *f2) <= 0) {
1365 memcpy(t, f1, n1 * PTR_SIZE);
1367 *f1++ = *f2++, n2--;
1369 while (n1 > 0 && n2 > 0) {
1370 if (f_name_cmp(*t, *f2) <= 0)
1373 *f1++ = *f2++, n2--;
1377 memcpy(f1, t, n1 * PTR_SIZE);
1380 /* This file-struct sorting routine makes sure that any identical names in
1381 * the file list stay in the same order as they were in the original list.
1382 * This is particularly vital in inc_recurse mode where we expect a sort
1383 * on the flist to match the exact order of a sort on the dir_flist. */
1384 static void fsort(struct file_struct **fp, size_t num)
1390 qsort(fp, num, PTR_SIZE, file_compare);
1392 struct file_struct **tmp = new_array(struct file_struct *,
1394 fsort_tmp(fp, num, tmp);
1399 /* We take an entire set of sibling dirs from the sorted flist and link them
1400 * into the tree, setting the appropriate parent/child/sibling pointers. */
1401 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1406 int32 *parent_dp = parent_ndx < 0 ? NULL
1407 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1409 flist_expand(dir_flist, dir_cnt);
1410 dir_flist->sorted = dir_flist->files;
1412 for (i = 0; dir_cnt; i++) {
1413 struct file_struct *file = from_flist->sorted[i];
1415 if (!S_ISDIR(file->mode))
1418 dir_flist->files[dir_flist->used++] = file;
1421 if (file->basename[0] == '.' && file->basename[1] == '\0')
1425 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1427 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1429 send_dir_ndx = dir_flist->used - 1;
1431 dp = F_DIR_NODE_P(file);
1432 DIR_PARENT(dp) = parent_ndx;
1433 DIR_FIRST_CHILD(dp) = -1;
1436 DIR_NEXT_SIBLING(dp) = -1;
1439 /* This function is normally called by the sender, but the receiving side also
1440 * calls it from get_dirlist() with f set to -1 so that we just construct the
1441 * file list in memory without sending it over the wire. Also, get_dirlist()
1442 * might call this with f set to -2, which also indicates that local filter
1443 * rules should be ignored. */
1444 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1451 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1452 int start = flist->used;
1453 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1455 assert(flist != NULL);
1457 if (!(d = opendir(fbuf))) {
1458 io_error |= IOERR_GENERAL;
1459 rsyserr(FERROR, errno, "opendir %s failed", full_fname(fbuf));
1464 if (len != 1 || *fbuf != '/')
1467 remainder = MAXPATHLEN - (p - fbuf);
1469 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1470 char *dname = d_name(di);
1471 if (dname[0] == '.' && (dname[1] == '\0'
1472 || (dname[1] == '.' && dname[2] == '\0')))
1474 if (strlcpy(p, dname, remainder) >= remainder) {
1475 io_error |= IOERR_GENERAL;
1477 "cannot send long-named file %s\n",
1481 if (dname[0] == '\0') {
1482 io_error |= IOERR_GENERAL;
1484 "cannot send file with empty name in %s\n",
1489 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1495 io_error |= IOERR_GENERAL;
1496 rsyserr(FERROR, errno, "readdir(%s)", full_fname(fbuf));
1501 if (f >= 0 && recurse && !divert_dirs) {
1502 int i, end = flist->used - 1;
1503 /* send_if_directory() bumps flist->used, so use "end". */
1504 for (i = start; i <= end; i++)
1505 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1509 static char lastpath[MAXPATHLEN] = "";
1510 static int lastpath_len = 0;
1511 static struct file_struct *lastpath_struct;
1513 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1514 char *start, char *limit, int flags, char name_type)
1516 struct file_struct *file;
1517 item_list *relname_list;
1518 relnamecache **rnpp;
1520 int len, need_new_dir;
1522 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1525 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1526 && lastpath_len == limit - fname
1527 && strncmp(lastpath, fname, lastpath_len) == 0)
1535 int save_copy_links = copy_links;
1536 int save_xfer_dirs = xfer_dirs;
1538 copy_links = xfer_dirs = 1;
1542 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1544 send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1548 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1550 if (file && !S_ISDIR(file->mode))
1552 lastpath_struct = file;
1555 strlcpy(lastpath, fname, sizeof lastpath);
1556 lastpath_len = limit - fname;
1560 copy_links = save_copy_links;
1561 xfer_dirs = save_xfer_dirs;
1567 if (!lastpath_struct)
1568 return; /* dir must have vanished */
1570 len = strlen(limit+1);
1571 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1572 if (!relname_list) {
1573 if (!(relname_list = new0(item_list)))
1574 out_of_memory("send_implied_dirs");
1575 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1577 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1578 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1579 out_of_memory("send_implied_dirs");
1580 (*rnpp)->name_type = name_type;
1581 strlcpy((*rnpp)->fname, limit+1, len + 1);
1584 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1586 char fbuf[MAXPATHLEN];
1587 item_list *relname_list;
1588 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1592 dlen = strlen(fbuf);
1594 if (F_PATHNAME(file) != pathname) {
1595 if (!push_pathname(F_PATHNAME(file), -1))
1596 exit_cleanup(RERR_FILESELECT);
1599 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1601 if (file->flags & FLAG_CONTENT_DIR) {
1602 if (one_file_system) {
1604 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1605 io_error |= IOERR_GENERAL;
1606 rsyserr(FERROR, errno, "link_stat %s failed",
1610 filesystem_dev = st.st_dev;
1612 send_directory(f, flist, fbuf, dlen, flags);
1615 if (!relative_paths)
1618 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1622 for (j = 0; j < relname_list->count; j++) {
1624 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1625 char name_type = rnp->name_type;
1628 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1630 if (len >= (int)sizeof fbuf)
1631 continue; /* Impossible... */
1633 slash = strchr(fbuf+dlen+1, '/');
1635 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1639 if (name_type != NORMAL_NAME) {
1641 if (link_stat(fbuf, &st, 1) != 0) {
1642 io_error |= IOERR_GENERAL;
1643 rsyserr(FERROR, errno, "link_stat %s failed",
1647 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1649 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1655 void send_extra_file_list(int f, int at_least)
1657 struct file_list *flist;
1660 int future_cnt, save_io_error = io_error;
1665 /* Keep sending data until we have the requested number of
1666 * files in the upcoming file-lists. */
1667 if (cur_flist->next) {
1668 flist = first_flist->prev; /* the newest flist */
1669 future_cnt = flist->ndx_end - cur_flist->next->ndx_start + 1;
1672 while (future_cnt < at_least) {
1673 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1674 int dir_ndx, dstart = dir_count;
1675 const char *pathname = F_PATHNAME(file);
1678 flist = flist_new(0, "send_extra_file_list");
1679 start_write = stats.total_written;
1683 dir_ndx = F_NDX(file);
1686 dir_ndx = send_dir_ndx;
1687 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1688 flist->parent_ndx = dir_ndx;
1690 send1extra(f, file, flist);
1691 prev_flags = file->flags;
1692 dp = F_DIR_NODE_P(file);
1694 /* If there are any duplicate directory names that follow, we
1695 * send all the dirs together in one file-list. The dir_flist
1696 * tree links all the child subdirs onto the last dup dir. */
1697 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1698 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1699 send_dir_ndx = dir_ndx;
1700 file = dir_flist->sorted[dir_ndx];
1701 /* Try to avoid some duplicate scanning of identical dirs. */
1702 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1703 file->flags &= ~FLAG_CONTENT_DIR;
1704 send1extra(f, file, flist);
1705 prev_flags = file->flags;
1706 dp = F_DIR_NODE_P(file);
1712 if (need_unsorted_flist) {
1713 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1714 out_of_memory("send_extra_file_list");
1715 memcpy(flist->sorted, flist->files,
1716 flist->used * sizeof (struct file_struct*));
1719 flist->sorted = flist->files;
1721 clean_flist(flist, 0);
1723 flist->ndx_end = flist->ndx_start + flist->used - 1;
1727 flist->ndx_end -= (dir_count - dstart);
1729 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1730 flist_done_allocating(flist);
1732 file_total += flist->used;
1733 future_cnt += flist->used;
1734 stats.flist_size += stats.total_written - start_write;
1735 stats.num_files += flist->used;
1737 output_flist(flist);
1739 if (DIR_FIRST_CHILD(dp) >= 0) {
1740 send_dir_ndx = DIR_FIRST_CHILD(dp);
1743 while (DIR_NEXT_SIBLING(dp) < 0) {
1744 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1745 write_ndx(f, NDX_FLIST_EOF);
1747 change_local_filter_dir(NULL, 0, 0);
1751 file = dir_flist->sorted[send_dir_ndx];
1752 dp = F_DIR_NODE_P(file);
1754 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1759 if (io_error != save_io_error && !ignore_errors)
1760 send_msg_int(MSG_IO_ERROR, io_error);
1763 struct file_list *send_file_list(int f, int argc, char *argv[])
1765 static const char *lastdir;
1766 static int lastdir_len = -1;
1770 struct file_list *flist;
1771 struct timeval start_tv, end_tv;
1774 int disable_buffering;
1775 int flags = recurse ? FLAG_CONTENT_DIR : 0;
1776 int reading_remotely = filesfrom_host != NULL;
1777 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1779 | (filesfrom_convert ? RL_CONVERT : 0)
1781 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1783 rprintf(FLOG, "building file list\n");
1784 if (show_filelist_p())
1785 start_filelist_progress("building file list");
1786 else if (inc_recurse && verbose && !am_server)
1787 rprintf(FCLIENT, "sending incremental file list\n");
1789 start_write = stats.total_written;
1790 gettimeofday(&start_tv, NULL);
1792 if (relative_paths && protocol_version >= 30)
1793 implied_dirs = 1; /* We send flagged implied dirs */
1795 #ifdef SUPPORT_HARD_LINKS
1796 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1800 flist = cur_flist = flist_new(0, "send_file_list");
1802 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1803 flags |= FLAG_DIVERT_DIRS;
1805 dir_flist = cur_flist;
1807 disable_buffering = io_start_buffering_out(f);
1808 if (filesfrom_fd >= 0) {
1809 if (argv[0] && !push_dir(argv[0], 0)) {
1810 rsyserr(FERROR, errno, "push_dir %s failed in %s",
1811 full_fname(argv[0]), curr_dir);
1812 exit_cleanup(RERR_FILESELECT);
1818 char fbuf[MAXPATHLEN], *fn, name_type;
1821 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1823 sanitize_path(fbuf, fbuf, "", 0, NULL);
1827 strlcpy(fbuf, *argv++, MAXPATHLEN);
1829 sanitize_path(fbuf, fbuf, "", 0, NULL);
1833 if (relative_paths) {
1834 /* We clean up fbuf below. */
1835 name_type = NORMAL_NAME;
1836 } else if (!len || fbuf[len - 1] == '/') {
1837 if (len == 2 && fbuf[0] == '.') {
1838 /* Turn "./" into just "." rather than "./." */
1841 if (len + 1 >= MAXPATHLEN)
1842 overflow_exit("send_file_list");
1846 name_type = DOT_NAME;
1847 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1848 && (len == 2 || fbuf[len-3] == '/')) {
1849 if (len + 2 >= MAXPATHLEN)
1850 overflow_exit("send_file_list");
1854 name_type = DOT_NAME;
1855 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
1856 name_type = DOT_NAME;
1858 name_type = NORMAL_NAME;
1862 if (!relative_paths) {
1863 p = strrchr(fbuf, '/');
1870 len -= p - fbuf + 1;
1875 if ((p = strstr(fbuf, "/./")) != NULL) {
1885 *--fn = '\0'; /* ensure room for '.' */
1888 len = clean_fname(fn, CFN_KEEP_LEADING_DOT_DIR
1889 | CFN_KEEP_TRAILING_SLASH
1890 | CFN_DROP_TRAILING_DOT_DIR);
1895 name_type = DOT_NAME;
1896 } else if (fn[0] == '.')
1897 name_type = DOT_NAME;
1898 } else if (fn[len-1] == '/') {
1900 if (len == 1 && *fn == '.')
1901 name_type = DOT_NAME;
1903 name_type = SLASH_ENDING_NAME;
1905 /* Reject a ".." dir in the active part of the path. */
1906 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
1907 if ((p[2] == '/' || p[2] == '\0')
1908 && (p == fn || p[-1] == '/')) {
1910 "found \"..\" dir in relative path: %s\n",
1912 exit_cleanup(RERR_SYNTAX);
1920 name_type = DOT_NAME;
1923 dirlen = dir ? strlen(dir) : 0;
1924 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
1925 if (!push_pathname(dir ? strdup(dir) : NULL, dirlen))
1928 lastdir_len = pathname_len;
1929 } else if (!push_pathname(lastdir, lastdir_len))
1933 memmove(fbuf, fn, len + 1);
1935 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0) {
1936 io_error |= IOERR_GENERAL;
1937 rsyserr(FERROR, errno, "link_stat %s failed",
1942 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
1943 rprintf(FINFO, "skipping directory %s\n", fbuf);
1947 if (inc_recurse && relative_paths && *fbuf) {
1948 if ((p = strchr(fbuf+1, '/')) != NULL) {
1949 if (p - fbuf == 1 && *fbuf == '.') {
1950 if ((fn = strchr(p+1, '/')) != NULL)
1954 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
1958 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
1959 /* Send the implied directories at the start of the
1960 * source spec, so we get their permissions right. */
1961 char *lp = lastpath, *slash = fbuf;
1963 /* Skip any initial directories in our path that we
1964 * have in common with lastpath. */
1965 for (fn = fbuf; *fn && *lp == *fn; lp++, fn++) {
1970 if (fn != p || (*lp && *lp != '/'))
1971 send_implied_dirs(f, flist, fbuf, slash, p, flags, 0);
1974 if (one_file_system)
1975 filesystem_dev = st.st_dev;
1977 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
1978 struct file_struct *file;
1979 int top_flags = FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags;
1980 file = send_file_name(f, flist, fbuf, &st,
1981 top_flags, ALL_FILTERS);
1983 if (name_type == DOT_NAME) {
1984 if (send_dir_depth < 0) {
1986 change_local_filter_dir(fbuf, len, send_dir_depth);
1988 send_directory(f, flist, fbuf, len, flags);
1991 send_if_directory(f, flist, file, fbuf, len, flags);
1993 send_file_name(f, flist, fbuf, &st, flags, ALL_FILTERS);
1996 gettimeofday(&end_tv, NULL);
1997 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
1998 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
1999 if (stats.flist_buildtime == 0)
2000 stats.flist_buildtime = 1;
2003 write_byte(f, 0); /* Indicate end of file list */
2005 #ifdef SUPPORT_HARD_LINKS
2006 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2010 if (show_filelist_p())
2011 finish_filelist_progress(flist);
2013 gettimeofday(&end_tv, NULL);
2014 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2015 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2017 /* When converting names, both sides keep an unsorted file-list array
2018 * because the names will differ on the sending and receiving sides
2019 * (both sides will use the unsorted index number for each item). */
2021 /* Sort the list without removing any duplicates. This allows the
2022 * receiving side to ask for whatever name it kept. For incremental
2023 * recursion mode, the sender marks duplicate dirs so that it can
2024 * send them together in a single file-list. */
2026 if (need_unsorted_flist) {
2028 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2029 out_of_memory("send_file_list");
2030 memcpy(flist->sorted, flist->files,
2031 flist->used * sizeof (struct file_struct*));
2032 clean_flist(flist, 0);
2034 flist->sorted = flist->files;
2036 flist->high = flist->used - 1;
2041 flist->sorted = flist->files;
2042 clean_flist(flist, 0);
2044 file_total += flist->used;
2046 /* We don't subtract dir_count for the first send since we
2047 * might have one or more dot dirs which need to get sent. */
2048 flist->ndx_end = flist->ndx_start + flist->used - 1;
2050 if (!numeric_ids && !inc_recurse)
2053 /* send the io_error flag */
2054 if (protocol_version < 30)
2055 write_int(f, ignore_errors ? 0 : io_error);
2056 else if (io_error && !ignore_errors)
2057 send_msg_int(MSG_IO_ERROR, io_error);
2059 if (disable_buffering)
2060 io_end_buffering_out();
2062 stats.flist_size = stats.total_written - start_write;
2063 stats.num_files = flist->used;
2066 output_flist(flist);
2069 rprintf(FINFO, "send_file_list done\n");
2073 add_dirs_to_tree(-1, flist, dir_count);
2074 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2075 flist->parent_ndx = -1;
2076 flist_done_allocating(flist);
2077 if (send_dir_ndx < 0) {
2078 write_ndx(f, NDX_FLIST_EOF);
2081 else if (file_total == 1) {
2082 /* If we're creating incremental file-lists and there
2083 * was just 1 item in the first file-list, send 1 more
2084 * file-list to check if this is a 1-file xfer. */
2085 send_extra_file_list(f, 1);
2092 struct file_list *recv_file_list(int f)
2094 struct file_list *flist;
2099 rprintf(FLOG, "receiving file list\n");
2100 if (show_filelist_p())
2101 start_filelist_progress("receiving file list");
2102 else if (inc_recurse && verbose && !am_server && !first_flist)
2103 rprintf(FCLIENT, "receiving incremental file list\n");
2105 start_read = stats.total_read;
2107 #ifdef SUPPORT_HARD_LINKS
2108 if (preserve_hard_links && !first_flist)
2112 flist = flist_new(0, "recv_file_list");
2115 if (flist->ndx_start == 1)
2116 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2117 dstart = dir_flist->used;
2123 while ((flags = read_byte(f)) != 0) {
2124 struct file_struct *file;
2126 flist_expand(flist, 1);
2128 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2129 flags |= read_byte(f) << 8;
2130 file = recv_file_entry(flist, flags, f);
2132 if (inc_recurse && S_ISDIR(file->mode)) {
2133 flist_expand(dir_flist, 1);
2134 dir_flist->files[dir_flist->used++] = file;
2137 flist->files[flist->used++] = file;
2139 maybe_emit_filelist_progress(flist->used);
2142 rprintf(FINFO, "recv_file_name(%s)\n",
2143 f_name(file, NULL));
2146 file_total += flist->used;
2148 flist->ndx_end = flist->ndx_start + flist->used - 1;
2153 && flist->ndx_start > 1)
2154 flist->ndx_end -= dir_flist->used - dstart;
2157 rprintf(FINFO, "received %d names\n", flist->used);
2159 if (show_filelist_p())
2160 finish_filelist_progress(flist);
2163 if (need_unsorted_flist) {
2164 /* Create an extra array of index pointers that we can sort for
2165 * the generator's use (for wading through the files in sorted
2166 * order and for calling flist_find()). We keep the "files"
2167 * list unsorted for our exchange of index numbers with the
2168 * other side (since their names may not sort the same). */
2169 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2170 out_of_memory("recv_file_list");
2171 memcpy(flist->sorted, flist->files,
2172 flist->used * sizeof (struct file_struct*));
2173 if (inc_recurse && dir_flist->used > dstart) {
2174 dir_flist->sorted = realloc_array(dir_flist->sorted,
2175 struct file_struct *,
2177 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2178 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2179 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2184 flist->sorted = flist->files;
2185 if (inc_recurse && dir_flist->used > dstart) {
2186 dir_flist->sorted = dir_flist->files;
2187 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2192 flist_done_allocating(flist);
2194 recv_id_list(f, flist);
2196 clean_flist(flist, relative_paths);
2198 if (protocol_version < 30) {
2199 /* Recv the io_error flag */
2203 io_error |= read_int(f);
2204 } else if (inc_recurse && flist->ndx_start == 1) {
2205 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2206 flist->parent_ndx = -1;
2210 output_flist(flist);
2213 rprintf(FINFO, "recv_file_list done\n");
2215 stats.flist_size += stats.total_read - start_read;
2216 stats.num_files += flist->used;
2221 /* This is only used once by the receiver if the very first file-list
2222 * has exactly one item in it. */
2223 void recv_additional_file_list(int f)
2225 struct file_list *flist;
2226 int ndx = read_ndx(f);
2227 if (ndx == NDX_FLIST_EOF) {
2229 change_local_filter_dir(NULL, 0, 0);
2231 ndx = NDX_FLIST_OFFSET - ndx;
2232 if (ndx < 0 || ndx >= dir_flist->used) {
2233 ndx = NDX_FLIST_OFFSET - ndx;
2235 "[%s] Invalid dir index: %d (%d - %d)\n",
2236 who_am_i(), ndx, NDX_FLIST_OFFSET,
2237 NDX_FLIST_OFFSET - dir_flist->used + 1);
2238 exit_cleanup(RERR_PROTOCOL);
2241 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2244 flist = recv_file_list(f);
2245 flist->parent_ndx = ndx;
2249 /* Search for an identically-named item in the file list. Note that the
2250 * items must agree in their directory-ness, or no match is returned. */
2251 int flist_find(struct file_list *flist, struct file_struct *f)
2253 int low = flist->low, high = flist->high;
2254 int diff, mid, mid_up;
2256 while (low <= high) {
2257 mid = (low + high) / 2;
2258 if (F_IS_ACTIVE(flist->sorted[mid]))
2261 /* Scan for the next non-empty entry using the cached
2262 * distance values. If the value isn't fully up-to-
2263 * date, update it. */
2264 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2265 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2267 mid_up += F_DEPTH(flist->sorted[mid_up]);
2268 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2269 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2271 if (mid_up > high) {
2272 /* If there's nothing left above us, set high to
2273 * a non-empty entry below us and continue. */
2274 high = mid - (int)flist->sorted[mid]->len32;
2275 if (!F_IS_ACTIVE(flist->sorted[high])) {
2277 high -= (int)flist->sorted[high]->len32;
2278 } while (!F_IS_ACTIVE(flist->sorted[high]));
2279 flist->sorted[mid]->len32 = mid - high;
2284 diff = f_name_cmp(flist->sorted[mid_up], f);
2286 if (protocol_version < 29
2287 && S_ISDIR(flist->sorted[mid_up]->mode)
2288 != S_ISDIR(f->mode))
2301 * Free up any resources a file_struct has allocated
2302 * and clear the file.
2304 void clear_file(struct file_struct *file)
2306 /* The +1 zeros out the first char of the basename. */
2307 memset(file, 0, FILE_STRUCT_LEN + 1);
2308 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2309 * entry. Likewise for len32 in the opposite direction. We assume
2310 * that we're alone for now since flist_find() will adjust the counts
2311 * it runs into that aren't up-to-date. */
2312 file->len32 = F_DEPTH(file) = 1;
2315 /* Allocate a new file list. */
2316 struct file_list *flist_new(int flags, char *msg)
2318 struct file_list *flist;
2320 if (!(flist = new0(struct file_list)))
2323 if (flags & FLIST_TEMP) {
2324 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2325 out_of_memory, POOL_INTERN)))
2328 /* This is a doubly linked list with prev looping back to
2329 * the end of the list, but the last next pointer is NULL. */
2331 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2332 out_of_memory, POOL_INTERN);
2333 if (!flist->file_pool)
2336 flist->ndx_start = inc_recurse ? 1 : 0;
2338 first_flist = cur_flist = flist->prev = flist;
2340 flist->file_pool = first_flist->file_pool;
2342 flist->ndx_start = first_flist->prev->ndx_end + 2;
2343 if (flist->ndx_start <= high_hlink_ndx)
2344 flist->ndx_start = high_hlink_ndx + 1;
2346 flist->prev = first_flist->prev;
2347 flist->prev->next = first_flist->prev = flist;
2349 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2356 /* Free up all elements in a flist. */
2357 void flist_free(struct file_list *flist)
2360 /* Was FLIST_TEMP dir-list. */
2361 } else if (flist == flist->prev) {
2362 first_flist = cur_flist = NULL;
2366 if (flist == cur_flist)
2367 cur_flist = flist->next;
2368 if (flist == first_flist)
2369 first_flist = first_flist->next;
2371 flist->prev->next = flist->next;
2373 flist->next = first_flist;
2375 flist->next->prev = flist->prev;
2376 file_total -= flist->used;
2380 if (!flist->prev || !flist_cnt)
2381 pool_destroy(flist->file_pool);
2383 pool_free_old(flist->file_pool, flist->pool_boundary);
2385 if (flist->sorted && flist->sorted != flist->files)
2386 free(flist->sorted);
2391 /* This routine ensures we don't have any duplicate names in our file list.
2392 * duplicate names can cause corruption because of the pipelining. */
2393 static void clean_flist(struct file_list *flist, int strip_root)
2395 char fbuf[MAXPATHLEN];
2400 if (flist->used == 0) {
2406 fsort(flist->sorted, flist->used);
2408 if (!am_sender || inc_recurse) {
2409 for (i = prev_i = 0; i < flist->used; i++) {
2410 if (F_IS_ACTIVE(flist->sorted[i])) {
2415 flist->low = prev_i;
2417 i = prev_i = flist->used - 1;
2421 while (++i < flist->used) {
2423 struct file_struct *file = flist->sorted[i];
2425 if (!F_IS_ACTIVE(file))
2427 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2429 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2430 int save_mode = file->mode;
2431 /* Make sure that this directory doesn't duplicate a
2432 * non-directory earlier in the list. */
2433 flist->high = prev_i;
2434 file->mode = S_IFREG;
2435 j = flist_find(flist, file);
2436 file->mode = save_mode;
2441 /* If one is a dir and the other is not, we want to
2442 * keep the dir because it might have contents in the
2443 * list. Otherwise keep the first one. */
2444 if (S_ISDIR(file->mode)) {
2445 struct file_struct *fp = flist->sorted[j];
2446 if (!S_ISDIR(fp->mode))
2450 file->flags |= FLAG_DUPLICATE;
2451 else { /* Make sure we merge our vital flags. */
2452 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2453 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2463 "removing duplicate name %s from file list (%d)\n",
2464 f_name(file, fbuf), drop + flist->ndx_start);
2466 clear_file(flist->sorted[drop]);
2470 if (flist->low == drop) {
2472 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2481 flist->high = prev_i;
2484 /* We need to strip off the leading slashes for relative
2485 * paths, but this must be done _after_ the sorting phase. */
2486 for (i = flist->low; i <= flist->high; i++) {
2487 struct file_struct *file = flist->sorted[i];
2491 while (*file->dirname == '/')
2493 if (!*file->dirname)
2494 file->dirname = NULL;
2498 if (prune_empty_dirs && !am_sender) {
2499 int j, prev_depth = 0;
2501 prev_i = 0; /* It's OK that this isn't really true. */
2503 for (i = flist->low; i <= flist->high; i++) {
2504 struct file_struct *fp, *file = flist->sorted[i];
2506 /* This temporarily abuses the F_DEPTH() value for a
2507 * directory that is in a chain that might get pruned.
2508 * We restore the old value if it gets a reprieve. */
2509 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2510 /* Dump empty dirs when coming back down. */
2511 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2512 fp = flist->sorted[prev_i];
2513 if (F_DEPTH(fp) >= 0)
2515 prev_i = -F_DEPTH(fp)-1;
2518 prev_depth = F_DEPTH(file);
2519 if (is_excluded(f_name(file, fbuf), 1,
2521 /* Keep dirs through this dir. */
2522 for (j = prev_depth-1; ; j--) {
2523 fp = flist->sorted[prev_i];
2524 if (F_DEPTH(fp) >= 0)
2526 prev_i = -F_DEPTH(fp)-1;
2530 F_DEPTH(file) = -prev_i-1;
2533 /* Keep dirs through this non-dir. */
2534 for (j = prev_depth; ; j--) {
2535 fp = flist->sorted[prev_i];
2536 if (F_DEPTH(fp) >= 0)
2538 prev_i = -F_DEPTH(fp)-1;
2543 /* Dump all remaining empty dirs. */
2545 struct file_struct *fp = flist->sorted[prev_i];
2546 if (F_DEPTH(fp) >= 0)
2548 prev_i = -F_DEPTH(fp)-1;
2552 for (i = flist->low; i <= flist->high; i++) {
2553 if (F_IS_ACTIVE(flist->sorted[i]))
2557 for (i = flist->high; i >= flist->low; i--) {
2558 if (F_IS_ACTIVE(flist->sorted[i]))
2565 static void output_flist(struct file_list *flist)
2567 char uidbuf[16], gidbuf[16], depthbuf[16];
2568 struct file_struct *file;
2569 const char *root, *dir, *slash, *name, *trail;
2570 const char *who = who_am_i();
2573 rprintf(FINFO, "[%s] flist start=%d, end=%d, used=%d, low=%d, high=%d\n",
2574 who, flist->ndx_start, flist->ndx_end, flist->used, flist->low, flist->high);
2575 for (i = 0; i < flist->used; i++) {
2576 file = flist->files[i];
2577 if ((am_root || am_sender) && uid_ndx) {
2578 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2583 static char parens[] = "(\0)\0\0\0";
2584 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2585 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2586 pp, F_GROUP(file), pp + 2);
2590 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2591 if (F_IS_ACTIVE(file)) {
2592 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2593 if ((dir = file->dirname) == NULL)
2597 name = file->basename;
2598 trail = S_ISDIR(file->mode) ? "/" : "";
2600 root = dir = slash = name = trail = "";
2602 "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
2603 who, i + flist->ndx_start,
2604 root, dir, slash, name, trail,
2605 (int)file->mode, (double)F_LENGTH(file),
2606 uidbuf, gidbuf, file->flags);
2610 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2611 enum fnc_type { t_PATH, t_ITEM };
2613 static int found_prefix;
2615 /* Compare the names of two file_struct entities, similar to how strcmp()
2616 * would do if it were operating on the joined strings.
2618 * Some differences beginning with protocol_version 29: (1) directory names
2619 * are compared with an assumed trailing slash so that they compare in a
2620 * way that would cause them to sort immediately prior to any content they
2621 * may have; (2) a directory of any name compares after a non-directory of
2622 * any name at the same depth; (3) a directory with name "." compares prior
2623 * to anything else. These changes mean that a directory and a non-dir
2624 * with the same name will not compare as equal (protocol_version >= 29).
2626 * The dirname component can be an empty string, but the basename component
2627 * cannot (and never is in the current codebase). The basename component
2628 * may be NULL (for a removed item), in which case it is considered to be
2629 * after any existing item. */
2630 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2633 const uchar *c1, *c2;
2634 enum fnc_state state1, state2;
2635 enum fnc_type type1, type2;
2636 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2638 if (!f1 || !F_IS_ACTIVE(f1)) {
2639 if (!f2 || !F_IS_ACTIVE(f2))
2643 if (!f2 || !F_IS_ACTIVE(f2))
2646 c1 = (uchar*)f1->dirname;
2647 c2 = (uchar*)f2->dirname;
2651 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2652 c1 = (const uchar*)f1->basename;
2653 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2655 state1 = s_TRAILING;
2664 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2665 c2 = (const uchar*)f2->basename;
2666 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2668 state2 = s_TRAILING;
2678 return type1 == t_PATH ? 1 : -1;
2688 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2689 c1 = (const uchar*)f1->basename;
2690 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2692 state1 = s_TRAILING;
2698 state1 = s_TRAILING;
2699 if (type1 == t_PATH) {
2708 if (*c2 && type1 != type2)
2709 return type1 == t_PATH ? 1 : -1;
2718 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2719 c2 = (const uchar*)f2->basename;
2720 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2722 state2 = s_TRAILING;
2728 state2 = s_TRAILING;
2729 if (type2 == t_PATH) {
2742 return type1 == t_PATH ? 1 : -1;
2744 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2749 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2750 * not match if f2's basename is not an exact match of a path element in f1.
2751 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2752 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2756 return found_prefix;
2759 char *f_name_buf(void)
2761 static char names[5][MAXPATHLEN];
2762 static unsigned int n;
2764 n = (n + 1) % (sizeof names / sizeof names[0]);
2769 /* Return a copy of the full filename of a flist entry, using the indicated
2770 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2771 * done because we checked the size when creating the file_struct entry.
2773 char *f_name(const struct file_struct *f, char *fbuf)
2775 if (!f || !F_IS_ACTIVE(f))
2779 fbuf = f_name_buf();
2782 int len = strlen(f->dirname);
2783 memcpy(fbuf, f->dirname, len);
2785 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2787 strlcpy(fbuf, f->basename, MAXPATHLEN);
2792 /* Do a non-recursive scan of the named directory, possibly ignoring all
2793 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2794 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2795 * buffer (the functions we call will append names onto the end, but the old
2796 * dir value will be restored on exit). */
2797 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2799 struct file_list *dirlist;
2800 char dirbuf[MAXPATHLEN];
2801 int save_recurse = recurse;
2802 int save_xfer_dirs = xfer_dirs;
2803 int save_prune_empty_dirs = prune_empty_dirs;
2806 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2807 if (dlen >= MAXPATHLEN)
2812 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2816 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2817 xfer_dirs = save_xfer_dirs;
2818 recurse = save_recurse;
2820 flist_count_offset += dirlist->used;
2822 prune_empty_dirs = 0;
2823 dirlist->sorted = dirlist->files;
2824 clean_flist(dirlist, 0);
2825 prune_empty_dirs = save_prune_empty_dirs;
2828 output_flist(dirlist);