2 * Generate and receive file lists.
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2002-2008 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
33 extern int am_generator;
34 extern int inc_recurse;
35 extern int always_checksum;
37 extern int ignore_errors;
38 extern int numeric_ids;
42 extern int filesfrom_fd;
43 extern int one_file_system;
44 extern int copy_dirlinks;
45 extern int keep_dirlinks;
46 extern int preserve_uid;
47 extern int preserve_gid;
48 extern int preserve_acls;
49 extern int preserve_xattrs;
50 extern int preserve_links;
51 extern int preserve_hard_links;
52 extern int preserve_devices;
53 extern int preserve_specials;
57 extern int relative_paths;
58 extern int implied_dirs;
59 extern int file_extra_cnt;
60 extern int ignore_perishable;
61 extern int non_perishable_cnt;
62 extern int prune_empty_dirs;
63 extern int copy_links;
64 extern int copy_unsafe_links;
65 extern int protocol_version;
66 extern int sanitize_paths;
67 extern int munge_symlinks;
68 extern int need_unsorted_flist;
69 extern int sender_symlink_iconv;
70 extern int output_needs_newline;
71 extern int sender_keeps_checksum;
72 extern int unsort_ndx;
73 extern struct stats stats;
74 extern char *filesfrom_host;
76 extern char curr_dir[MAXPATHLEN];
78 extern struct chmod_mode_struct *chmod_modes;
80 extern struct filter_list_struct filter_list;
81 extern struct filter_list_struct daemon_filter_list;
84 extern int filesfrom_convert;
85 extern iconv_t ic_send, ic_recv;
88 #define PTR_SIZE (sizeof (struct file_struct *))
92 dev_t filesystem_dev; /* used to implement -x */
94 struct file_list *cur_flist, *first_flist, *dir_flist;
95 int send_dir_ndx = -1, send_dir_depth = -1;
96 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
97 int file_total = 0; /* total of all active items over all file-lists */
98 int flist_eof = 0; /* all the file-lists are now known */
100 #define NORMAL_NAME 0
101 #define SLASH_ENDING_NAME 1
102 #define DOTDIR_NAME 2
104 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
105 * internally, even if this platform does not allow files to have 64-bit inums.
106 * The only exception is if we're on a platform with no 64-bit type at all.
108 * Because we use read_longint() to get these off the wire, if you transfer
109 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
110 * machine with no 64-bit types then you will get an overflow error.
112 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
113 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
114 * be truncated. But it's a kind of silly thing to do anyhow. */
116 /* The tmp_* vars are used as a cache area by make_file() to store data
117 * that the sender doesn't need to remember in its file list. The data
118 * will survive just long enough to be used by send_file_entry(). */
119 static dev_t tmp_rdev;
120 #ifdef SUPPORT_HARD_LINKS
121 static int64 tmp_dev, tmp_ino;
123 static char tmp_sum[MAX_DIGEST_LEN];
125 static char empty_sum[MAX_DIGEST_LEN];
126 static int flist_count_offset; /* for --delete --progress */
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),
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 and adjust counts. */
415 if (S_ISREG(file->mode))
417 else if (S_ISDIR(file->mode)) {
419 if (protocol_version >= 30) {
420 if (file->flags & FLAG_CONTENT_DIR)
421 xflags = file->flags & FLAG_TOP_DIR;
422 else if (file->flags & FLAG_IMPLIED_DIR)
423 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
425 xflags = XMIT_NO_CONTENT_DIR;
427 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
429 if (S_ISLNK(file->mode))
430 stats.num_symlinks++;
431 else if (IS_DEVICE(file->mode))
434 stats.num_specials++;
438 if (file->mode == mode)
439 xflags |= XMIT_SAME_MODE;
443 if ((preserve_devices && IS_DEVICE(mode))
444 || (preserve_specials && IS_SPECIAL(mode))) {
445 if (protocol_version < 28) {
446 if (tmp_rdev == rdev)
447 xflags |= XMIT_SAME_RDEV_pre28;
452 if ((uint32)major(rdev) == rdev_major)
453 xflags |= XMIT_SAME_RDEV_MAJOR;
455 rdev_major = major(rdev);
456 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
457 xflags |= XMIT_RDEV_MINOR_8_pre30;
459 } else if (protocol_version < 28)
460 rdev = MAKEDEV(0, 0);
461 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
462 xflags |= XMIT_SAME_UID;
466 user_name = add_uid(uid);
467 if (inc_recurse && user_name)
468 xflags |= XMIT_USER_NAME_FOLLOWS;
471 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
472 xflags |= XMIT_SAME_GID;
476 group_name = add_gid(gid);
477 if (inc_recurse && group_name)
478 xflags |= XMIT_GROUP_NAME_FOLLOWS;
481 if (file->modtime == modtime)
482 xflags |= XMIT_SAME_TIME;
484 modtime = file->modtime;
486 #ifdef SUPPORT_HARD_LINKS
488 if (protocol_version >= 30) {
489 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
490 first_hlink_ndx = (int32)(long)np->data - 1;
491 if (first_hlink_ndx < 0) {
492 np->data = (void*)(long)(first_ndx + ndx + 1);
493 xflags |= XMIT_HLINK_FIRST;
495 if (DEBUG_GTE(HLINK, 1)) {
496 if (first_hlink_ndx >= 0) {
497 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
498 who_am_i(), first_ndx + ndx, first_hlink_ndx,
499 first_hlink_ndx >= first_ndx ? "" : "un");
500 } else if (DEBUG_GTE(HLINK, 3)) {
501 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
502 who_am_i(), first_ndx + ndx,
503 big_num(tmp_dev), big_num(tmp_ino));
507 if (tmp_dev == dev) {
508 if (protocol_version >= 28)
509 xflags |= XMIT_SAME_DEV_pre30;
513 xflags |= XMIT_HLINKED;
518 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
520 l2 = strlen(fname+l1);
523 xflags |= XMIT_SAME_NAME;
525 xflags |= XMIT_LONG_NAME;
527 /* We must make sure we don't send a zero flag byte or the
528 * other end will terminate the flist transfer. Note that
529 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
530 * it's harmless way to add a bit to the first flag byte. */
531 if (protocol_version >= 28) {
532 if (!xflags && !S_ISDIR(mode))
533 xflags |= XMIT_TOP_DIR;
534 if ((xflags & 0xFF00) || !xflags) {
535 xflags |= XMIT_EXTENDED_FLAGS;
536 write_shortint(f, xflags);
538 write_byte(f, xflags);
540 if (!(xflags & 0xFF))
541 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
542 write_byte(f, xflags);
544 if (xflags & XMIT_SAME_NAME)
546 if (xflags & XMIT_LONG_NAME)
547 write_varint30(f, l2);
550 write_buf(f, fname + l1, l2);
552 #ifdef SUPPORT_HARD_LINKS
553 if (first_hlink_ndx >= 0) {
554 write_varint(f, first_hlink_ndx);
555 if (first_hlink_ndx >= first_ndx)
560 write_varlong30(f, F_LENGTH(file), 3);
561 if (!(xflags & XMIT_SAME_TIME)) {
562 if (protocol_version >= 30)
563 write_varlong(f, modtime, 4);
565 write_int(f, modtime);
567 if (!(xflags & XMIT_SAME_MODE))
568 write_int(f, to_wire_mode(mode));
569 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
570 if (protocol_version < 30)
573 write_varint(f, uid);
574 if (xflags & XMIT_USER_NAME_FOLLOWS) {
575 int len = strlen(user_name);
577 write_buf(f, user_name, len);
581 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
582 if (protocol_version < 30)
585 write_varint(f, gid);
586 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
587 int len = strlen(group_name);
589 write_buf(f, group_name, len);
593 if ((preserve_devices && IS_DEVICE(mode))
594 || (preserve_specials && IS_SPECIAL(mode))) {
595 if (protocol_version < 28) {
596 if (!(xflags & XMIT_SAME_RDEV_pre28))
597 write_int(f, (int)rdev);
599 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
600 write_varint30(f, major(rdev));
601 if (protocol_version >= 30)
602 write_varint(f, minor(rdev));
603 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
604 write_byte(f, minor(rdev));
606 write_int(f, minor(rdev));
612 write_varint30(f, symlink_len);
613 write_buf(f, symlink_name, symlink_len);
617 #ifdef SUPPORT_HARD_LINKS
618 if (tmp_dev != 0 && protocol_version < 30) {
619 if (protocol_version < 26) {
620 /* 32-bit dev_t and ino_t */
621 write_int(f, (int32)dev);
622 write_int(f, (int32)tmp_ino);
624 /* 64-bit dev_t and ino_t */
625 if (!(xflags & XMIT_SAME_DEV_pre30))
626 write_longint(f, dev);
627 write_longint(f, tmp_ino);
632 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
637 /* Prior to 28, we sent a useless set of nulls. */
640 write_buf(f, sum, checksum_len);
643 #ifdef SUPPORT_HARD_LINKS
646 strlcpy(lastname, fname, MAXPATHLEN);
648 if (S_ISREG(mode) || S_ISLNK(mode))
649 stats.total_size += F_LENGTH(file);
652 static struct file_struct *recv_file_entry(struct file_list *flist,
655 static int64 modtime;
657 #ifdef SUPPORT_HARD_LINKS
661 static uint32 rdev_major;
664 static uint16 gid_flags;
665 static char lastname[MAXPATHLEN], *lastdir;
666 static int lastdir_depth, lastdir_len = -1;
667 static unsigned int del_hier_name_len = 0;
668 static int in_del_hier = 0;
669 char thisname[MAXPATHLEN];
670 unsigned int l1 = 0, l2 = 0;
671 int alloc_len, basename_len, linkname_len;
672 int extra_len = file_extra_cnt * EXTRA_LEN;
673 int first_hlink_ndx = -1;
675 const char *basename;
676 struct file_struct *file;
680 if (xflags & XMIT_SAME_NAME)
683 if (xflags & XMIT_LONG_NAME)
684 l2 = read_varint30(f);
688 if (l2 >= MAXPATHLEN - l1) {
690 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
691 xflags, l1, l2, lastname, who_am_i());
692 overflow_exit("recv_file_entry");
695 strlcpy(thisname, lastname, l1 + 1);
696 read_sbuf(f, &thisname[l1], l2);
697 thisname[l1 + l2] = 0;
699 /* Abuse basename_len for a moment... */
700 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
703 if (ic_recv != (iconv_t)-1) {
706 INIT_CONST_XBUF(outbuf, thisname);
707 INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
709 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
710 io_error |= IOERR_GENERAL;
712 "[%s] cannot convert filename: %s (%s)\n",
713 who_am_i(), lastname, strerror(errno));
716 thisname[outbuf.len] = '\0';
721 clean_fname(thisname, 0);
724 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
726 if ((basename = strrchr(thisname, '/')) != NULL) {
727 int len = basename++ - thisname;
728 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
729 lastdir = new_array(char, len + 1);
730 memcpy(lastdir, thisname, len);
733 lastdir_depth = count_dir_elements(lastdir);
737 basename_len = strlen(basename) + 1; /* count the '\0' */
739 #ifdef SUPPORT_HARD_LINKS
740 if (protocol_version >= 30
741 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
742 first_hlink_ndx = read_varint(f);
743 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
745 "hard-link reference out of range: %d (%d)\n",
746 first_hlink_ndx, flist->ndx_start + flist->used);
747 exit_cleanup(RERR_PROTOCOL);
749 if (DEBUG_GTE(HLINK, 1)) {
750 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
751 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
752 first_hlink_ndx >= flist->ndx_start ? "" : "un");
754 if (first_hlink_ndx >= flist->ndx_start) {
755 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
756 file_length = F_LENGTH(first);
757 modtime = first->modtime;
760 uid = F_OWNER(first);
762 gid = F_GROUP(first);
763 if ((preserve_devices && IS_DEVICE(mode))
764 || (preserve_specials && IS_SPECIAL(mode))) {
765 uint32 *devp = F_RDEV_P(first);
766 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
767 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
769 if (preserve_links && S_ISLNK(mode))
770 linkname_len = strlen(F_SYMLINK(first)) + 1;
778 file_length = read_varlong30(f, 3);
779 if (!(xflags & XMIT_SAME_TIME)) {
780 if (protocol_version >= 30) {
781 modtime = read_varlong(f, 4);
782 #if SIZEOF_TIME_T < SIZEOF_INT64
783 if (!am_generator && (int64)(time_t)modtime != modtime) {
785 "Time value of %s truncated on receiver.\n",
790 modtime = read_int(f);
792 if (!(xflags & XMIT_SAME_MODE))
793 mode = from_wire_mode(read_int(f));
795 if (chmod_modes && !S_ISLNK(mode))
796 mode = tweak_mode(mode, chmod_modes);
798 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
799 if (protocol_version < 30)
800 uid = (uid_t)read_int(f);
802 uid = (uid_t)read_varint(f);
803 if (xflags & XMIT_USER_NAME_FOLLOWS)
804 uid = recv_user_name(f, uid);
805 else if (inc_recurse && am_root && !numeric_ids)
806 uid = match_uid(uid);
809 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
810 if (protocol_version < 30)
811 gid = (gid_t)read_int(f);
813 gid = (gid_t)read_varint(f);
815 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
816 gid = recv_group_name(f, gid, &gid_flags);
817 else if (inc_recurse && (!am_root || !numeric_ids))
818 gid = match_gid(gid, &gid_flags);
822 if ((preserve_devices && IS_DEVICE(mode))
823 || (preserve_specials && IS_SPECIAL(mode))) {
824 if (protocol_version < 28) {
825 if (!(xflags & XMIT_SAME_RDEV_pre28))
826 rdev = (dev_t)read_int(f);
829 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
830 rdev_major = read_varint30(f);
831 if (protocol_version >= 30)
832 rdev_minor = read_varint(f);
833 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
834 rdev_minor = read_byte(f);
836 rdev_minor = read_int(f);
837 rdev = MAKEDEV(rdev_major, rdev_minor);
839 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
841 } else if (protocol_version < 28)
842 rdev = MAKEDEV(0, 0);
845 if (preserve_links && S_ISLNK(mode)) {
846 linkname_len = read_varint30(f) + 1; /* count the '\0' */
847 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
848 rprintf(FERROR, "overflow: linkname_len=%d\n",
850 overflow_exit("recv_file_entry");
853 /* We don't know how much extra room we need to convert
854 * the as-yet-unread symlink data, so let's hope that a
855 * double-size buffer is plenty. */
856 if (sender_symlink_iconv)
860 linkname_len += SYMLINK_PREFIX_LEN;
866 #ifdef SUPPORT_HARD_LINKS
868 if (preserve_hard_links) {
869 if (protocol_version < 28 && S_ISREG(mode))
870 xflags |= XMIT_HLINKED;
871 if (xflags & XMIT_HLINKED)
872 extra_len += (inc_recurse+1) * EXTRA_LEN;
877 /* Directories need an extra int32 for the default ACL. */
878 if (preserve_acls && S_ISDIR(mode))
879 extra_len += EXTRA_LEN;
882 if (always_checksum && S_ISREG(mode))
883 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
885 #if SIZEOF_INT64 >= 8
886 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
887 extra_len += EXTRA_LEN;
889 if (file_length < 0) {
890 rprintf(FERROR, "Offset underflow: file-length is negative\n");
891 exit_cleanup(RERR_UNSUPPORTED);
894 if (inc_recurse && S_ISDIR(mode)) {
895 if (one_file_system) {
896 /* Room to save the dir's device for -x */
897 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
899 pool = dir_flist->file_pool;
901 pool = flist->file_pool;
903 #if EXTRA_ROUNDING > 0
904 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
905 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
908 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
910 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
912 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
914 file = (struct file_struct *)bp;
915 bp += FILE_STRUCT_LEN;
917 memcpy(bp, basename, basename_len);
919 #ifdef SUPPORT_HARD_LINKS
920 if (xflags & XMIT_HLINKED)
921 file->flags |= FLAG_HLINKED;
923 file->modtime = (time_t)modtime;
924 file->len32 = (uint32)file_length;
925 #if SIZEOF_INT64 >= 8
926 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
927 #if SIZEOF_CAPITAL_OFF_T < 8
928 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
929 exit_cleanup(RERR_UNSUPPORTED);
931 file->flags |= FLAG_LENGTH64;
932 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
941 file->flags |= gid_flags;
944 F_NDX(file) = flist->used + flist->ndx_start;
946 if (basename != thisname) {
947 file->dirname = lastdir;
948 F_DEPTH(file) = lastdir_depth + 1;
953 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
955 if (protocol_version >= 30) {
956 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
957 if (xflags & XMIT_TOP_DIR)
958 file->flags |= FLAG_TOP_DIR;
959 file->flags |= FLAG_CONTENT_DIR;
960 } else if (xflags & XMIT_TOP_DIR)
961 file->flags |= FLAG_IMPLIED_DIR;
962 } else if (xflags & XMIT_TOP_DIR) {
963 in_del_hier = recurse;
964 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
965 if (relative_paths && del_hier_name_len > 2
966 && lastname[del_hier_name_len-1] == '.'
967 && lastname[del_hier_name_len-2] == '/')
968 del_hier_name_len -= 2;
969 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
970 } else if (in_del_hier) {
971 if (!relative_paths || !del_hier_name_len
972 || (l1 >= del_hier_name_len
973 && lastname[del_hier_name_len] == '/'))
974 file->flags |= FLAG_CONTENT_DIR;
980 if ((preserve_devices && IS_DEVICE(mode))
981 || (preserve_specials && IS_SPECIAL(mode))) {
982 uint32 *devp = F_RDEV_P(file);
983 DEV_MAJOR(devp) = major(rdev);
984 DEV_MINOR(devp) = minor(rdev);
990 if (first_hlink_ndx >= flist->ndx_start) {
991 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
992 memcpy(bp, F_SYMLINK(first), linkname_len);
994 if (munge_symlinks) {
995 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
996 bp += SYMLINK_PREFIX_LEN;
997 linkname_len -= SYMLINK_PREFIX_LEN;
1000 if (sender_symlink_iconv) {
1003 alloc_len = linkname_len;
1006 /* Read the symlink data into the end of our double-sized
1007 * buffer and then convert it into the right spot. */
1008 INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
1009 linkname_len - 1, (size_t)-1);
1010 read_sbuf(f, inbuf.buf, inbuf.len);
1011 INIT_XBUF(outbuf, bp, 0, alloc_len);
1013 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
1014 io_error |= IOERR_GENERAL;
1015 rprintf(FERROR_XFER,
1016 "[%s] cannot convert symlink data for: %s (%s)\n",
1017 who_am_i(), full_fname(thisname), strerror(errno));
1018 bp = (char*)file->basename;
1022 bp[outbuf.len] = '\0';
1025 read_sbuf(f, bp, linkname_len - 1);
1026 if (sanitize_paths && !munge_symlinks && *bp)
1027 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1032 #ifdef SUPPORT_HARD_LINKS
1033 if (preserve_hard_links && xflags & XMIT_HLINKED) {
1034 if (protocol_version >= 30) {
1035 if (xflags & XMIT_HLINK_FIRST) {
1036 F_HL_GNUM(file) = flist->ndx_start + flist->used;
1038 F_HL_GNUM(file) = first_hlink_ndx;
1040 static int32 cnt = 0;
1041 struct ht_int64_node *np;
1044 if (protocol_version < 26) {
1048 if (!(xflags & XMIT_SAME_DEV_pre30))
1049 dev = read_longint(f);
1050 ino = read_longint(f);
1052 np = idev_find(dev, ino);
1053 ndx = (int32)(long)np->data - 1;
1056 np->data = (void*)(long)cnt;
1058 F_HL_GNUM(file) = ndx;
1063 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1067 /* Prior to 28, we get a useless set of nulls. */
1070 if (first_hlink_ndx >= flist->ndx_start) {
1071 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1072 memcpy(bp, F_SUM(first), checksum_len);
1074 read_buf(f, bp, checksum_len);
1078 if (preserve_acls && !S_ISLNK(mode))
1079 receive_acl(file, f);
1081 #ifdef SUPPORT_XATTRS
1082 if (preserve_xattrs)
1083 receive_xattr(file, f );
1086 if (S_ISREG(mode) || S_ISLNK(mode))
1087 stats.total_size += file_length;
1092 /* Create a file_struct for a named file by reading its stat() information
1093 * and performing extensive checks against global options.
1095 * Returns a pointer to the new file struct, or NULL if there was an error
1096 * or this file should be excluded.
1098 * Note: Any error (here or in send_file_name) that results in the omission of
1099 * an existent source file from the file list should set
1100 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1101 * destination if --delete is on. */
1102 struct file_struct *make_file(const char *fname, struct file_list *flist,
1103 STRUCT_STAT *stp, int flags, int filter_level)
1105 static char *lastdir;
1106 static int lastdir_len = -1;
1107 struct file_struct *file;
1108 char thisname[MAXPATHLEN];
1109 char linkname[MAXPATHLEN];
1110 int alloc_len, basename_len, linkname_len;
1111 int extra_len = file_extra_cnt * EXTRA_LEN;
1112 const char *basename;
1117 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1118 io_error |= IOERR_GENERAL;
1119 rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1122 clean_fname(thisname, 0);
1124 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1126 if (stp && S_ISDIR(stp->st_mode)) {
1127 st = *stp; /* Needed for "symlink/." with --relative. */
1128 *linkname = '\0'; /* make IBM code checker happy */
1129 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1130 int save_errno = errno;
1131 /* See if file is excluded before reporting an error. */
1132 if (filter_level != NO_FILTERS
1133 && (is_excluded(thisname, 0, filter_level)
1134 || is_excluded(thisname, 1, filter_level))) {
1135 if (ignore_perishable && save_errno != ENOENT)
1136 non_perishable_cnt++;
1139 if (save_errno == ENOENT) {
1140 #ifdef SUPPORT_LINKS
1141 /* When our options tell us to follow a symlink that
1142 * points nowhere, tell the user about the symlink
1143 * instead of giving a "vanished" message. We only
1144 * dereference a symlink if one of the --copy*links
1145 * options was specified, so there's no need for the
1146 * extra lstat() if one of these options isn't on. */
1147 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1148 && x_lstat(thisname, &st, NULL) == 0
1149 && S_ISLNK(st.st_mode)) {
1150 io_error |= IOERR_GENERAL;
1151 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1152 full_fname(thisname));
1156 enum logcode c = am_daemon && protocol_version < 28
1157 ? FERROR : FWARNING;
1158 io_error |= IOERR_VANISHED;
1159 rprintf(c, "file has vanished: %s\n",
1160 full_fname(thisname));
1163 io_error |= IOERR_GENERAL;
1164 rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
1165 full_fname(thisname));
1170 if (filter_level == NO_FILTERS)
1173 if (S_ISDIR(st.st_mode)) {
1175 rprintf(FINFO, "skipping directory %s\n", thisname);
1178 /* -x only affects dirs because we need to avoid recursing
1179 * into a mount-point directory, not to avoid copying a
1180 * symlinked file if -L (or similar) was specified. */
1181 if (one_file_system && st.st_dev != filesystem_dev
1182 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1183 if (one_file_system > 1) {
1184 if (INFO_GTE(MOUNT, 1)) {
1186 "[%s] skipping mount-point dir %s\n",
1187 who_am_i(), thisname);
1191 flags |= FLAG_MOUNT_DIR;
1192 flags &= ~FLAG_CONTENT_DIR;
1195 flags &= ~FLAG_CONTENT_DIR;
1197 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1198 if (ignore_perishable)
1199 non_perishable_cnt++;
1203 if (lp_ignore_nonreadable(module_id)) {
1204 #ifdef SUPPORT_LINKS
1205 if (!S_ISLNK(st.st_mode))
1207 if (access(thisname, R_OK) != 0)
1213 /* Only divert a directory in the main transfer. */
1215 if (flist->prev && S_ISDIR(st.st_mode)
1216 && flags & FLAG_DIVERT_DIRS) {
1217 /* Room for parent/sibling/next-child info. */
1218 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1220 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1221 pool = dir_flist->file_pool;
1223 pool = flist->file_pool;
1226 /* Directories need an extra int32 for the default ACL. */
1227 if (preserve_acls && S_ISDIR(st.st_mode))
1228 extra_len += EXTRA_LEN;
1233 if (DEBUG_GTE(FLIST, 2)) {
1234 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1235 who_am_i(), thisname, filter_level);
1238 if ((basename = strrchr(thisname, '/')) != NULL) {
1239 int len = basename++ - thisname;
1240 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1241 lastdir = new_array(char, len + 1);
1242 memcpy(lastdir, thisname, len);
1243 lastdir[len] = '\0';
1247 basename = thisname;
1248 basename_len = strlen(basename) + 1; /* count the '\0' */
1250 #ifdef SUPPORT_LINKS
1251 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1256 #if SIZEOF_CAPITAL_OFF_T >= 8
1257 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1258 extra_len += EXTRA_LEN;
1261 if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
1262 file_checksum(thisname, tmp_sum, st.st_size);
1263 if (sender_keeps_checksum)
1264 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1267 #if EXTRA_ROUNDING > 0
1268 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1269 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1272 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1275 bp = pool_alloc(pool, alloc_len, "make_file");
1277 if (!(bp = new_array(char, alloc_len)))
1278 out_of_memory("make_file");
1281 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1283 file = (struct file_struct *)bp;
1284 bp += FILE_STRUCT_LEN;
1286 memcpy(bp, basename, basename_len);
1288 #ifdef SUPPORT_HARD_LINKS
1289 if (preserve_hard_links && flist && flist->prev) {
1290 if (protocol_version >= 28
1291 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1292 : S_ISREG(st.st_mode)) {
1293 tmp_dev = (int64)st.st_dev + 1;
1294 tmp_ino = (int64)st.st_ino;
1300 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1301 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1302 tmp_rdev = st.st_rdev;
1307 file->flags = flags;
1308 file->modtime = st.st_mtime;
1309 file->len32 = (uint32)st.st_size;
1310 #if SIZEOF_CAPITAL_OFF_T >= 8
1311 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1312 file->flags |= FLAG_LENGTH64;
1313 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1316 file->mode = st.st_mode;
1317 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1318 F_OWNER(file) = st.st_uid;
1319 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1320 F_GROUP(file) = st.st_gid;
1322 if (basename != thisname)
1323 file->dirname = lastdir;
1325 #ifdef SUPPORT_LINKS
1327 memcpy(bp + basename_len, linkname, linkname_len);
1331 F_PATHNAME(file) = pathname;
1333 F_DEPTH(file) = extra_len / EXTRA_LEN;
1335 if (basename_len == 0+1) {
1341 if (sender_keeps_checksum && S_ISREG(st.st_mode))
1342 memcpy(F_SUM(file), tmp_sum, checksum_len);
1345 F_NDX(file) = stats.num_dirs;
1350 /* Only called for temporary file_struct entries created by make_file(). */
1351 void unmake_file(struct file_struct *file)
1353 free(REQ_EXTRA(file, F_DEPTH(file)));
1356 static struct file_struct *send_file_name(int f, struct file_list *flist,
1357 const char *fname, STRUCT_STAT *stp,
1358 int flags, int filter_level)
1360 struct file_struct *file;
1362 file = make_file(fname, flist, stp, flags, filter_level);
1366 if (chmod_modes && !S_ISLNK(file->mode))
1367 file->mode = tweak_mode(file->mode, chmod_modes);
1370 char fbuf[MAXPATHLEN];
1371 #ifdef SUPPORT_LINKS
1372 const char *symlink_name;
1375 char symlink_buf[MAXPATHLEN];
1378 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1382 #ifdef SUPPORT_LINKS
1383 if (preserve_links && S_ISLNK(file->mode)) {
1384 symlink_name = F_SYMLINK(file);
1385 symlink_len = strlen(symlink_name);
1387 symlink_name = NULL;
1393 if (ic_send != (iconv_t)-1) {
1396 INIT_CONST_XBUF(outbuf, fbuf);
1398 if (file->dirname) {
1399 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1400 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1401 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1404 fbuf[outbuf.len++] = '/';
1407 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1408 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1410 io_error |= IOERR_GENERAL;
1411 rprintf(FERROR_XFER,
1412 "[%s] cannot convert filename: %s (%s)\n",
1413 who_am_i(), f_name(file, fbuf), strerror(errno));
1416 fbuf[outbuf.len] = '\0';
1418 #ifdef SUPPORT_LINKS
1419 if (symlink_len && sender_symlink_iconv) {
1420 INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
1421 INIT_CONST_XBUF(outbuf, symlink_buf);
1422 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1423 io_error |= IOERR_GENERAL;
1425 rprintf(FERROR_XFER,
1426 "[%s] cannot convert symlink data for: %s (%s)\n",
1427 who_am_i(), full_fname(fbuf), strerror(errno));
1430 symlink_buf[outbuf.len] = '\0';
1432 symlink_name = symlink_buf;
1433 symlink_len = outbuf.len;
1441 if (preserve_acls && !S_ISLNK(file->mode)) {
1442 sx.st.st_mode = file->mode;
1443 sx.acc_acl = sx.def_acl = NULL;
1444 if (get_acl(fname, &sx) < 0) {
1445 io_error |= IOERR_GENERAL;
1450 #ifdef SUPPORT_XATTRS
1451 if (preserve_xattrs) {
1453 if (get_xattr(fname, &sx) < 0) {
1454 io_error |= IOERR_GENERAL;
1460 send_file_entry(f, fbuf, file,
1461 #ifdef SUPPORT_LINKS
1462 symlink_name, symlink_len,
1464 flist->used, flist->ndx_start);
1467 if (preserve_acls && !S_ISLNK(file->mode)) {
1472 #ifdef SUPPORT_XATTRS
1473 if (preserve_xattrs) {
1474 F_XATTR(file) = send_xattr(&sx, f);
1480 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1482 flist_expand(flist, 1);
1483 flist->files[flist->used++] = file;
1488 static void send_if_directory(int f, struct file_list *flist,
1489 struct file_struct *file,
1490 char *fbuf, unsigned int ol,
1493 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1495 if (S_ISDIR(file->mode)
1496 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1498 unsigned int len = strlen(fbuf);
1499 if (len > 1 && fbuf[len-1] == '/')
1501 if (len >= MAXPATHLEN - 1) {
1502 io_error |= IOERR_GENERAL;
1503 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1507 save_filters = push_local_filters(fbuf, len);
1508 send_directory(f, flist, fbuf, len, flags);
1509 pop_local_filters(save_filters);
1516 static int file_compare(const void *file1, const void *file2)
1518 return f_name_cmp(*(struct file_struct **)file1,
1519 *(struct file_struct **)file2);
1522 /* The guts of a merge-sort algorithm. This was derived from the glibc
1523 * version, but I (Wayne) changed the merge code to do less copying and
1524 * to require only half the amount of temporary memory. */
1525 static void fsort_tmp(struct file_struct **fp, size_t num,
1526 struct file_struct **tmp)
1528 struct file_struct **f1, **f2, **t;
1537 fsort_tmp(f1, n1, tmp);
1539 fsort_tmp(f2, n2, tmp);
1541 while (f_name_cmp(*f1, *f2) <= 0) {
1548 memcpy(t, f1, n1 * PTR_SIZE);
1550 *f1++ = *f2++, n2--;
1552 while (n1 > 0 && n2 > 0) {
1553 if (f_name_cmp(*t, *f2) <= 0)
1556 *f1++ = *f2++, n2--;
1560 memcpy(f1, t, n1 * PTR_SIZE);
1563 /* This file-struct sorting routine makes sure that any identical names in
1564 * the file list stay in the same order as they were in the original list.
1565 * This is particularly vital in inc_recurse mode where we expect a sort
1566 * on the flist to match the exact order of a sort on the dir_flist. */
1567 static void fsort(struct file_struct **fp, size_t num)
1573 qsort(fp, num, PTR_SIZE, file_compare);
1575 struct file_struct **tmp = new_array(struct file_struct *,
1577 fsort_tmp(fp, num, tmp);
1582 /* We take an entire set of sibling dirs from the sorted flist and link them
1583 * into the tree, setting the appropriate parent/child/sibling pointers. */
1584 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1589 int32 *parent_dp = parent_ndx < 0 ? NULL
1590 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1592 flist_expand(dir_flist, dir_cnt);
1593 dir_flist->sorted = dir_flist->files;
1595 for (i = 0; dir_cnt; i++) {
1596 struct file_struct *file = from_flist->sorted[i];
1598 if (!S_ISDIR(file->mode))
1601 dir_flist->files[dir_flist->used++] = file;
1604 if (file->basename[0] == '.' && file->basename[1] == '\0')
1608 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1610 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1612 send_dir_ndx = dir_flist->used - 1;
1614 dp = F_DIR_NODE_P(file);
1615 DIR_PARENT(dp) = parent_ndx;
1616 DIR_FIRST_CHILD(dp) = -1;
1619 DIR_NEXT_SIBLING(dp) = -1;
1622 /* This function is normally called by the sender, but the receiving side also
1623 * calls it from get_dirlist() with f set to -1 so that we just construct the
1624 * file list in memory without sending it over the wire. Also, get_dirlist()
1625 * might call this with f set to -2, which also indicates that local filter
1626 * rules should be ignored. */
1627 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1634 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1635 int start = flist->used;
1636 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1638 assert(flist != NULL);
1640 if (!(d = opendir(fbuf))) {
1641 io_error |= IOERR_GENERAL;
1642 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1647 if (len != 1 || *fbuf != '/')
1650 remainder = MAXPATHLEN - (p - fbuf);
1652 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1653 char *dname = d_name(di);
1654 if (dname[0] == '.' && (dname[1] == '\0'
1655 || (dname[1] == '.' && dname[2] == '\0')))
1657 if (strlcpy(p, dname, remainder) >= remainder) {
1658 io_error |= IOERR_GENERAL;
1659 rprintf(FERROR_XFER,
1660 "cannot send long-named file %s\n",
1664 if (dname[0] == '\0') {
1665 io_error |= IOERR_GENERAL;
1666 rprintf(FERROR_XFER,
1667 "cannot send file with empty name in %s\n",
1672 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1678 io_error |= IOERR_GENERAL;
1679 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1684 if (f >= 0 && recurse && !divert_dirs) {
1685 int i, end = flist->used - 1;
1686 /* send_if_directory() bumps flist->used, so use "end". */
1687 for (i = start; i <= end; i++)
1688 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1692 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1693 char *start, char *limit, int flags, char name_type)
1695 static char lastpath[MAXPATHLEN] = "";
1696 static int lastpath_len = 0;
1697 static struct file_struct *lastpath_struct = NULL;
1698 struct file_struct *file;
1699 item_list *relname_list;
1700 relnamecache **rnpp;
1701 int len, need_new_dir, depth = 0;
1702 struct filter_list_struct save_filter_list = filter_list;
1704 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1705 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1708 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1709 && lastpath_len == limit - fname
1710 && strncmp(lastpath, fname, lastpath_len) == 0)
1715 char *tp = fname, *lp = lastpath;
1716 /* Skip any initial directories in our path that we
1717 * have in common with lastpath. */
1718 assert(start == fname);
1719 for ( ; ; tp++, lp++) {
1721 if (*lp == '/' || *lp == '\0')
1736 int save_copy_links = copy_links;
1737 int save_xfer_dirs = xfer_dirs;
1740 copy_links = xfer_dirs = 1;
1744 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1746 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1748 if (!inc_recurse && file && S_ISDIR(file->mode))
1749 change_local_filter_dir(fname, strlen(fname), depth);
1753 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1755 if (file && !S_ISDIR(file->mode))
1757 lastpath_struct = file;
1758 } else if (file && S_ISDIR(file->mode))
1759 change_local_filter_dir(fname, strlen(fname), ++depth);
1761 strlcpy(lastpath, fname, sizeof lastpath);
1762 lastpath_len = limit - fname;
1766 copy_links = save_copy_links;
1767 xfer_dirs = save_xfer_dirs;
1773 if (!lastpath_struct)
1774 goto done; /* dir must have vanished */
1776 len = strlen(limit+1);
1777 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1778 if (!relname_list) {
1779 if (!(relname_list = new0(item_list)))
1780 out_of_memory("send_implied_dirs");
1781 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1783 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1784 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1785 out_of_memory("send_implied_dirs");
1786 (*rnpp)->name_type = name_type;
1787 strlcpy((*rnpp)->fname, limit+1, len + 1);
1790 filter_list = save_filter_list;
1793 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1795 char fbuf[MAXPATHLEN];
1796 item_list *relname_list;
1797 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1801 dlen = strlen(fbuf);
1803 if (!change_pathname(file, NULL, 0))
1804 exit_cleanup(RERR_FILESELECT);
1806 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1808 if (file->flags & FLAG_CONTENT_DIR) {
1809 if (one_file_system) {
1811 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1812 io_error |= IOERR_GENERAL;
1813 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1817 filesystem_dev = st.st_dev;
1819 send_directory(f, flist, fbuf, dlen, flags);
1822 if (!relative_paths)
1825 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1829 for (j = 0; j < relname_list->count; j++) {
1831 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1832 char name_type = rnp->name_type;
1835 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1837 if (len >= (int)sizeof fbuf)
1838 continue; /* Impossible... */
1840 slash = strchr(fbuf+dlen+1, '/');
1842 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1846 if (name_type != NORMAL_NAME) {
1848 if (link_stat(fbuf, &st, 1) != 0) {
1849 io_error |= IOERR_GENERAL;
1850 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1854 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1856 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1862 void send_extra_file_list(int f, int at_least)
1864 struct file_list *flist;
1867 int old_cnt, save_io_error = io_error;
1872 /* Keep sending data until we have the requested number of
1873 * files in the upcoming file-lists. */
1874 old_cnt = cur_flist->used;
1875 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1876 old_cnt += flist->used;
1877 while (file_total - old_cnt < at_least) {
1878 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1879 int dir_ndx, dstart = stats.num_dirs;
1880 const char *pathname = F_PATHNAME(file);
1883 flist = flist_new(0, "send_extra_file_list");
1884 start_write = stats.total_written;
1887 dir_ndx = F_NDX(file);
1889 dir_ndx = send_dir_ndx;
1890 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1891 flist->parent_ndx = dir_ndx;
1893 send1extra(f, file, flist);
1894 prev_flags = file->flags;
1895 dp = F_DIR_NODE_P(file);
1897 /* If there are any duplicate directory names that follow, we
1898 * send all the dirs together in one file-list. The dir_flist
1899 * tree links all the child subdirs onto the last dup dir. */
1900 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1901 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1902 send_dir_ndx = dir_ndx;
1903 file = dir_flist->sorted[dir_ndx];
1904 /* Try to avoid some duplicate scanning of identical dirs. */
1905 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1906 file->flags &= ~FLAG_CONTENT_DIR;
1907 send1extra(f, file, flist);
1908 prev_flags = file->flags;
1909 dp = F_DIR_NODE_P(file);
1912 if (protocol_version < 31 || io_error == save_io_error || ignore_errors)
1915 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
1916 write_int(f, io_error);
1919 if (need_unsorted_flist) {
1920 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1921 out_of_memory("send_extra_file_list");
1922 memcpy(flist->sorted, flist->files,
1923 flist->used * sizeof (struct file_struct*));
1925 flist->sorted = flist->files;
1927 flist_sort_and_clean(flist, 0);
1929 add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
1930 flist_done_allocating(flist);
1932 file_total += flist->used;
1933 stats.flist_size += stats.total_written - start_write;
1934 stats.num_files += flist->used;
1935 if (DEBUG_GTE(FLIST, 3))
1936 output_flist(flist);
1938 if (DIR_FIRST_CHILD(dp) >= 0) {
1939 send_dir_ndx = DIR_FIRST_CHILD(dp);
1942 while (DIR_NEXT_SIBLING(dp) < 0) {
1943 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1944 write_ndx(f, NDX_FLIST_EOF);
1946 change_local_filter_dir(NULL, 0, 0);
1950 file = dir_flist->sorted[send_dir_ndx];
1951 dp = F_DIR_NODE_P(file);
1953 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1958 if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
1959 send_msg_int(MSG_IO_ERROR, io_error);
1962 struct file_list *send_file_list(int f, int argc, char *argv[])
1964 static const char *lastdir;
1965 static int lastdir_len = -1;
1969 struct file_list *flist;
1970 struct timeval start_tv, end_tv;
1973 int disable_buffering;
1974 int flags = recurse ? FLAG_CONTENT_DIR : 0;
1975 int reading_remotely = filesfrom_host != NULL;
1976 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1978 | (filesfrom_convert ? RL_CONVERT : 0)
1980 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1981 int implied_dot_dir = 0;
1983 rprintf(FLOG, "building file list\n");
1984 if (show_filelist_p())
1985 start_filelist_progress("building file list");
1986 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
1987 rprintf(FCLIENT, "sending incremental file list\n");
1989 start_write = stats.total_written;
1990 gettimeofday(&start_tv, NULL);
1992 if (relative_paths && protocol_version >= 30)
1993 implied_dirs = 1; /* We send flagged implied dirs */
1995 #ifdef SUPPORT_HARD_LINKS
1996 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2000 flist = cur_flist = flist_new(0, "send_file_list");
2002 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2003 flags |= FLAG_DIVERT_DIRS;
2005 dir_flist = cur_flist;
2007 disable_buffering = io_start_buffering_out(f);
2008 if (filesfrom_fd >= 0) {
2009 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2010 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2011 full_fname(argv[0]));
2012 exit_cleanup(RERR_FILESELECT);
2018 orig_dir = strdup(curr_dir);
2021 char fbuf[MAXPATHLEN], *fn, name_type;
2024 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2026 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2030 strlcpy(fbuf, *argv++, MAXPATHLEN);
2032 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2036 if (relative_paths) {
2037 /* We clean up fbuf below. */
2038 name_type = NORMAL_NAME;
2039 } else if (!len || fbuf[len - 1] == '/') {
2040 if (len == 2 && fbuf[0] == '.') {
2041 /* Turn "./" into just "." rather than "./." */
2044 if (len + 1 >= MAXPATHLEN)
2045 overflow_exit("send_file_list");
2049 name_type = DOTDIR_NAME;
2050 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2051 && (len == 2 || fbuf[len-3] == '/')) {
2052 if (len + 2 >= MAXPATHLEN)
2053 overflow_exit("send_file_list");
2057 name_type = DOTDIR_NAME;
2058 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2059 name_type = DOTDIR_NAME;
2061 name_type = NORMAL_NAME;
2065 if (!relative_paths) {
2066 p = strrchr(fbuf, '/');
2073 len -= p - fbuf + 1;
2078 if ((p = strstr(fbuf, "/./")) != NULL) {
2084 clean_fname(dir, 0);
2090 *--fn = '\0'; /* ensure room for '.' */
2093 /* A leading ./ can be used in relative mode to affect
2094 * the dest dir without its name being in the path. */
2095 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
2096 send_file_name(f, flist, ".", NULL,
2097 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
2099 implied_dot_dir = 1;
2101 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2102 | CFN_DROP_TRAILING_DOT_DIR);
2107 name_type = DOTDIR_NAME;
2108 } else if (fn[0] == '.')
2109 name_type = DOTDIR_NAME;
2110 } else if (fn[len-1] == '/') {
2112 if (len == 1 && *fn == '.')
2113 name_type = DOTDIR_NAME;
2115 name_type = SLASH_ENDING_NAME;
2117 /* Reject a ".." dir in the active part of the path. */
2118 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2119 if ((p[2] == '/' || p[2] == '\0')
2120 && (p == fn || p[-1] == '/')) {
2122 "found \"..\" dir in relative path: %s\n",
2124 exit_cleanup(RERR_SYNTAX);
2132 name_type = DOTDIR_NAME;
2135 dirlen = dir ? strlen(dir) : 0;
2136 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2137 if (!change_pathname(NULL, dir, -dirlen))
2140 lastdir_len = pathname_len;
2141 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2145 memmove(fbuf, fn, len + 1);
2147 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2148 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2149 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2150 io_error |= IOERR_GENERAL;
2151 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2156 /* A dot-dir should not be excluded! */
2157 if (name_type != DOTDIR_NAME
2158 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2161 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2162 rprintf(FINFO, "skipping directory %s\n", fbuf);
2166 if (inc_recurse && relative_paths && *fbuf) {
2167 if ((p = strchr(fbuf+1, '/')) != NULL) {
2168 if (p - fbuf == 1 && *fbuf == '.') {
2169 if ((fn = strchr(p+1, '/')) != NULL)
2173 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2177 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2178 /* Send the implied directories at the start of the
2179 * source spec, so we get their permissions right. */
2180 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2183 if (one_file_system)
2184 filesystem_dev = st.st_dev;
2186 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2187 struct file_struct *file;
2188 file = send_file_name(f, flist, fbuf, &st,
2189 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2194 if (name_type == DOTDIR_NAME) {
2195 if (send_dir_depth < 0) {
2197 change_local_filter_dir(fbuf, len, send_dir_depth);
2199 send_directory(f, flist, fbuf, len, flags);
2202 send_if_directory(f, flist, file, fbuf, len, flags);
2204 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2207 gettimeofday(&end_tv, NULL);
2208 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2209 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2210 if (stats.flist_buildtime == 0)
2211 stats.flist_buildtime = 1;
2214 /* Indicate end of file list */
2215 if (protocol_version < 31 || io_error == 0 || ignore_errors)
2218 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2219 write_int(f, io_error);
2222 #ifdef SUPPORT_HARD_LINKS
2223 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2227 if (show_filelist_p())
2228 finish_filelist_progress(flist);
2230 gettimeofday(&end_tv, NULL);
2231 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2232 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2234 /* When converting names, both sides keep an unsorted file-list array
2235 * because the names will differ on the sending and receiving sides
2236 * (both sides will use the unsorted index number for each item). */
2238 /* Sort the list without removing any duplicates. This allows the
2239 * receiving side to ask for whatever name it kept. For incremental
2240 * recursion mode, the sender marks duplicate dirs so that it can
2241 * send them together in a single file-list. */
2242 if (need_unsorted_flist) {
2243 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2244 out_of_memory("send_file_list");
2245 memcpy(flist->sorted, flist->files,
2246 flist->used * sizeof (struct file_struct*));
2248 flist->sorted = flist->files;
2249 flist_sort_and_clean(flist, 0);
2250 file_total += flist->used;
2252 if (numeric_ids <= 0 && !inc_recurse)
2255 /* send the io_error flag */
2256 if (protocol_version < 30)
2257 write_int(f, ignore_errors ? 0 : io_error);
2258 else if (io_error && protocol_version == 30 && !ignore_errors)
2259 send_msg_int(MSG_IO_ERROR, io_error);
2261 if (disable_buffering)
2262 io_end_buffering_out();
2264 stats.flist_size = stats.total_written - start_write;
2265 stats.num_files = flist->used;
2267 if (DEBUG_GTE(FLIST, 3))
2268 output_flist(flist);
2270 if (DEBUG_GTE(FLIST, 2))
2271 rprintf(FINFO, "send_file_list done\n");
2275 add_dirs_to_tree(-1, flist, stats.num_dirs);
2276 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2277 flist->parent_ndx = -1;
2278 flist_done_allocating(flist);
2279 if (send_dir_ndx < 0) {
2280 write_ndx(f, NDX_FLIST_EOF);
2283 else if (file_total == 1) {
2284 /* If we're creating incremental file-lists and there
2285 * was just 1 item in the first file-list, send 1 more
2286 * file-list to check if this is a 1-file xfer. */
2287 send_extra_file_list(f, 1);
2294 struct file_list *recv_file_list(int f)
2296 struct file_list *flist;
2301 if (show_filelist_p())
2302 start_filelist_progress("receiving file list");
2303 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2304 rprintf(FCLIENT, "receiving incremental file list\n");
2305 rprintf(FLOG, "receiving file list\n");
2308 start_read = stats.total_read;
2310 #ifdef SUPPORT_HARD_LINKS
2311 if (preserve_hard_links && !first_flist)
2315 flist = flist_new(0, "recv_file_list");
2318 if (flist->ndx_start == 1)
2319 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2320 dstart = dir_flist->used;
2326 while ((flags = read_byte(f)) != 0) {
2327 struct file_struct *file;
2329 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2330 flags |= read_byte(f) << 8;
2332 if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
2334 if (protocol_version < 31) {
2335 rprintf(FERROR, "Invalid flist flag: %x\n", flags);
2336 exit_cleanup(RERR_PROTOCOL);
2344 flist_expand(flist, 1);
2345 file = recv_file_entry(flist, flags, f);
2347 if (S_ISREG(file->mode)) {
2348 /* Already counted */
2349 } else if (S_ISDIR(file->mode)) {
2351 flist_expand(dir_flist, 1);
2352 dir_flist->files[dir_flist->used++] = file;
2355 } else if (S_ISLNK(file->mode))
2356 stats.num_symlinks++;
2357 else if (IS_DEVICE(file->mode))
2358 stats.num_symlinks++;
2360 stats.num_specials++;
2362 flist->files[flist->used++] = file;
2364 maybe_emit_filelist_progress(flist->used);
2366 if (DEBUG_GTE(FLIST, 2)) {
2367 char *name = f_name(file, NULL);
2368 rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
2371 file_total += flist->used;
2373 if (DEBUG_GTE(FLIST, 2))
2374 rprintf(FINFO, "received %d names\n", flist->used);
2376 if (show_filelist_p())
2377 finish_filelist_progress(flist);
2379 if (need_unsorted_flist) {
2380 /* Create an extra array of index pointers that we can sort for
2381 * the generator's use (for wading through the files in sorted
2382 * order and for calling flist_find()). We keep the "files"
2383 * list unsorted for our exchange of index numbers with the
2384 * other side (since their names may not sort the same). */
2385 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2386 out_of_memory("recv_file_list");
2387 memcpy(flist->sorted, flist->files,
2388 flist->used * sizeof (struct file_struct*));
2389 if (inc_recurse && dir_flist->used > dstart) {
2390 static int dir_flist_malloced = 0;
2391 if (dir_flist_malloced < dir_flist->malloced) {
2392 dir_flist->sorted = realloc_array(dir_flist->sorted,
2393 struct file_struct *,
2394 dir_flist->malloced);
2395 dir_flist_malloced = dir_flist->malloced;
2397 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2398 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2399 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2402 flist->sorted = flist->files;
2403 if (inc_recurse && dir_flist->used > dstart) {
2404 dir_flist->sorted = dir_flist->files;
2405 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2410 flist_done_allocating(flist);
2412 recv_id_list(f, flist);
2414 flist_sort_and_clean(flist, relative_paths);
2416 if (protocol_version < 30) {
2417 /* Recv the io_error flag */
2418 int err = read_int(f);
2421 } else if (inc_recurse && flist->ndx_start == 1) {
2422 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2423 flist->parent_ndx = -1;
2426 if (DEBUG_GTE(FLIST, 3))
2427 output_flist(flist);
2429 if (DEBUG_GTE(FLIST, 2))
2430 rprintf(FINFO, "recv_file_list done\n");
2432 stats.flist_size += stats.total_read - start_read;
2433 stats.num_files += flist->used;
2438 /* This is only used once by the receiver if the very first file-list
2439 * has exactly one item in it. */
2440 void recv_additional_file_list(int f)
2442 struct file_list *flist;
2443 int ndx = read_ndx(f);
2444 if (ndx == NDX_FLIST_EOF) {
2446 change_local_filter_dir(NULL, 0, 0);
2448 ndx = NDX_FLIST_OFFSET - ndx;
2449 if (ndx < 0 || ndx >= dir_flist->used) {
2450 ndx = NDX_FLIST_OFFSET - ndx;
2452 "[%s] Invalid dir index: %d (%d - %d)\n",
2453 who_am_i(), ndx, NDX_FLIST_OFFSET,
2454 NDX_FLIST_OFFSET - dir_flist->used + 1);
2455 exit_cleanup(RERR_PROTOCOL);
2457 if (DEBUG_GTE(FLIST, 3)) {
2458 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2461 flist = recv_file_list(f);
2462 flist->parent_ndx = ndx;
2466 /* Search for an identically-named item in the file list. Note that the
2467 * items must agree in their directory-ness, or no match is returned. */
2468 int flist_find(struct file_list *flist, struct file_struct *f)
2470 int low = flist->low, high = flist->high;
2471 int diff, mid, mid_up;
2473 while (low <= high) {
2474 mid = (low + high) / 2;
2475 if (F_IS_ACTIVE(flist->sorted[mid]))
2478 /* Scan for the next non-empty entry using the cached
2479 * distance values. If the value isn't fully up-to-
2480 * date, update it. */
2481 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2482 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2484 mid_up += F_DEPTH(flist->sorted[mid_up]);
2485 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2486 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2488 if (mid_up > high) {
2489 /* If there's nothing left above us, set high to
2490 * a non-empty entry below us and continue. */
2491 high = mid - (int)flist->sorted[mid]->len32;
2492 if (!F_IS_ACTIVE(flist->sorted[high])) {
2494 high -= (int)flist->sorted[high]->len32;
2495 } while (!F_IS_ACTIVE(flist->sorted[high]));
2496 flist->sorted[mid]->len32 = mid - high;
2501 diff = f_name_cmp(flist->sorted[mid_up], f);
2503 if (protocol_version < 29
2504 && S_ISDIR(flist->sorted[mid_up]->mode)
2505 != S_ISDIR(f->mode))
2517 /* Search for an identically-named item in the file list. Differs from
2518 * flist_find in that an item that agrees with "f" in directory-ness is
2519 * preferred but one that does not is still found. */
2520 int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
2525 /* First look for an item that agrees in directory-ness. */
2526 ndx = flist_find(flist, f);
2530 /* Temporarily flip f->mode to look for an item of opposite
2531 * directory-ness. */
2532 save_mode = f->mode;
2533 f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
2534 ndx = flist_find(flist, f);
2535 f->mode = save_mode;
2540 * Free up any resources a file_struct has allocated
2541 * and clear the file.
2543 void clear_file(struct file_struct *file)
2545 /* The +1 zeros out the first char of the basename. */
2546 memset(file, 0, FILE_STRUCT_LEN + 1);
2547 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2548 * entry. Likewise for len32 in the opposite direction. We assume
2549 * that we're alone for now since flist_find() will adjust the counts
2550 * it runs into that aren't up-to-date. */
2551 file->len32 = F_DEPTH(file) = 1;
2554 /* Allocate a new file list. */
2555 struct file_list *flist_new(int flags, char *msg)
2557 struct file_list *flist;
2559 if (!(flist = new0(struct file_list)))
2562 if (flags & FLIST_TEMP) {
2563 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2568 /* This is a doubly linked list with prev looping back to
2569 * the end of the list, but the last next pointer is NULL. */
2571 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2574 if (!flist->file_pool)
2577 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2579 first_flist = cur_flist = flist->prev = flist;
2581 struct file_list *prev = first_flist->prev;
2583 flist->file_pool = first_flist->file_pool;
2585 flist->ndx_start = prev->ndx_start + prev->used + 1;
2586 flist->flist_num = prev->flist_num + 1;
2589 prev->next = first_flist->prev = flist;
2591 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2598 /* Free up all elements in a flist. */
2599 void flist_free(struct file_list *flist)
2602 /* Was FLIST_TEMP dir-list. */
2603 } else if (flist == flist->prev) {
2604 first_flist = cur_flist = NULL;
2608 if (flist == cur_flist)
2609 cur_flist = flist->next;
2610 if (flist == first_flist)
2611 first_flist = first_flist->next;
2613 flist->prev->next = flist->next;
2615 flist->next = first_flist;
2617 flist->next->prev = flist->prev;
2618 file_total -= flist->used;
2622 if (!flist->prev || !flist_cnt)
2623 pool_destroy(flist->file_pool);
2625 pool_free_old(flist->file_pool, flist->pool_boundary);
2627 if (flist->sorted && flist->sorted != flist->files)
2628 free(flist->sorted);
2633 /* This routine ensures we don't have any duplicate names in our file list.
2634 * duplicate names can cause corruption because of the pipelining. */
2635 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2637 char fbuf[MAXPATHLEN];
2642 if (flist->used == 0) {
2648 fsort(flist->sorted, flist->used);
2650 if (!am_sender || inc_recurse) {
2651 for (i = prev_i = 0; i < flist->used; i++) {
2652 if (F_IS_ACTIVE(flist->sorted[i])) {
2657 flist->low = prev_i;
2659 i = prev_i = flist->used - 1;
2663 while (++i < flist->used) {
2665 struct file_struct *file = flist->sorted[i];
2667 if (!F_IS_ACTIVE(file))
2669 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2671 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2672 int save_mode = file->mode;
2673 /* Make sure that this directory doesn't duplicate a
2674 * non-directory earlier in the list. */
2675 flist->high = prev_i;
2676 file->mode = S_IFREG;
2677 j = flist_find(flist, file);
2678 file->mode = save_mode;
2683 /* If one is a dir and the other is not, we want to
2684 * keep the dir because it might have contents in the
2685 * list. Otherwise keep the first one. */
2686 if (S_ISDIR(file->mode)) {
2687 struct file_struct *fp = flist->sorted[j];
2688 if (!S_ISDIR(fp->mode))
2692 file->flags |= FLAG_DUPLICATE;
2693 else { /* Make sure we merge our vital flags. */
2694 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2695 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2703 if (DEBUG_GTE(DUP, 1)) {
2705 "removing duplicate name %s from file list (%d)\n",
2706 f_name(file, fbuf), drop + flist->ndx_start);
2708 clear_file(flist->sorted[drop]);
2712 if (flist->low == drop) {
2714 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2723 flist->high = prev_i;
2726 /* We need to strip off the leading slashes for relative
2727 * paths, but this must be done _after_ the sorting phase. */
2728 for (i = flist->low; i <= flist->high; i++) {
2729 struct file_struct *file = flist->sorted[i];
2733 while (*file->dirname == '/')
2735 if (!*file->dirname)
2736 file->dirname = NULL;
2740 if (prune_empty_dirs && !am_sender) {
2741 int j, prev_depth = 0;
2743 prev_i = 0; /* It's OK that this isn't really true. */
2745 for (i = flist->low; i <= flist->high; i++) {
2746 struct file_struct *fp, *file = flist->sorted[i];
2748 /* This temporarily abuses the F_DEPTH() value for a
2749 * directory that is in a chain that might get pruned.
2750 * We restore the old value if it gets a reprieve. */
2751 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2752 /* Dump empty dirs when coming back down. */
2753 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2754 fp = flist->sorted[prev_i];
2755 if (F_DEPTH(fp) >= 0)
2757 prev_i = -F_DEPTH(fp)-1;
2760 prev_depth = F_DEPTH(file);
2761 if (is_excluded(f_name(file, fbuf), 1,
2763 /* Keep dirs through this dir. */
2764 for (j = prev_depth-1; ; j--) {
2765 fp = flist->sorted[prev_i];
2766 if (F_DEPTH(fp) >= 0)
2768 prev_i = -F_DEPTH(fp)-1;
2772 F_DEPTH(file) = -prev_i-1;
2775 /* Keep dirs through this non-dir. */
2776 for (j = prev_depth; ; j--) {
2777 fp = flist->sorted[prev_i];
2778 if (F_DEPTH(fp) >= 0)
2780 prev_i = -F_DEPTH(fp)-1;
2785 /* Dump all remaining empty dirs. */
2787 struct file_struct *fp = flist->sorted[prev_i];
2788 if (F_DEPTH(fp) >= 0)
2790 prev_i = -F_DEPTH(fp)-1;
2794 for (i = flist->low; i <= flist->high; i++) {
2795 if (F_IS_ACTIVE(flist->sorted[i]))
2799 for (i = flist->high; i >= flist->low; i--) {
2800 if (F_IS_ACTIVE(flist->sorted[i]))
2807 static void output_flist(struct file_list *flist)
2809 char uidbuf[16], gidbuf[16], depthbuf[16];
2810 struct file_struct *file;
2811 const char *root, *dir, *slash, *name, *trail;
2812 const char *who = who_am_i();
2815 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2816 who, flist->ndx_start, flist->used, flist->low, flist->high);
2817 for (i = 0; i < flist->used; i++) {
2818 file = flist->files[i];
2819 if ((am_root || am_sender) && uid_ndx) {
2820 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2825 static char parens[] = "(\0)\0\0\0";
2826 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2827 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2828 pp, F_GROUP(file), pp + 2);
2832 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2833 if (F_IS_ACTIVE(file)) {
2834 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2835 if ((dir = file->dirname) == NULL)
2839 name = file->basename;
2840 trail = S_ISDIR(file->mode) ? "/" : "";
2842 root = dir = slash = name = trail = "";
2844 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
2845 who, i + flist->ndx_start,
2846 root, dir, slash, name, trail,
2847 (int)file->mode, comma_num(F_LENGTH(file)),
2848 uidbuf, gidbuf, file->flags);
2852 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2853 enum fnc_type { t_PATH, t_ITEM };
2855 static int found_prefix;
2857 /* Compare the names of two file_struct entities, similar to how strcmp()
2858 * would do if it were operating on the joined strings.
2860 * Some differences beginning with protocol_version 29: (1) directory names
2861 * are compared with an assumed trailing slash so that they compare in a
2862 * way that would cause them to sort immediately prior to any content they
2863 * may have; (2) a directory of any name compares after a non-directory of
2864 * any name at the same depth; (3) a directory with name "." compares prior
2865 * to anything else. These changes mean that a directory and a non-dir
2866 * with the same name will not compare as equal (protocol_version >= 29).
2868 * The dirname component can be an empty string, but the basename component
2869 * cannot (and never is in the current codebase). The basename component
2870 * may be NULL (for a removed item), in which case it is considered to be
2871 * after any existing item. */
2872 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2875 const uchar *c1, *c2;
2876 enum fnc_state state1, state2;
2877 enum fnc_type type1, type2;
2878 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2880 if (!f1 || !F_IS_ACTIVE(f1)) {
2881 if (!f2 || !F_IS_ACTIVE(f2))
2885 if (!f2 || !F_IS_ACTIVE(f2))
2888 c1 = (uchar*)f1->dirname;
2889 c2 = (uchar*)f2->dirname;
2893 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2894 c1 = (const uchar*)f1->basename;
2895 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2897 state1 = s_TRAILING;
2906 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2907 c2 = (const uchar*)f2->basename;
2908 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2910 state2 = s_TRAILING;
2920 return type1 == t_PATH ? 1 : -1;
2930 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2931 c1 = (const uchar*)f1->basename;
2932 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2934 state1 = s_TRAILING;
2940 state1 = s_TRAILING;
2941 if (type1 == t_PATH) {
2950 if (*c2 && type1 != type2)
2951 return type1 == t_PATH ? 1 : -1;
2960 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2961 c2 = (const uchar*)f2->basename;
2962 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2964 state2 = s_TRAILING;
2970 state2 = s_TRAILING;
2971 if (type2 == t_PATH) {
2984 return type1 == t_PATH ? 1 : -1;
2986 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2991 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2992 * not match if f2's basename is not an exact match of a path element in f1.
2993 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2994 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2998 return found_prefix;
3001 char *f_name_buf(void)
3003 static char names[5][MAXPATHLEN];
3004 static unsigned int n;
3006 n = (n + 1) % (sizeof names / sizeof names[0]);
3011 /* Return a copy of the full filename of a flist entry, using the indicated
3012 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
3013 * done because we checked the size when creating the file_struct entry.
3015 char *f_name(const struct file_struct *f, char *fbuf)
3017 if (!f || !F_IS_ACTIVE(f))
3021 fbuf = f_name_buf();
3024 int len = strlen(f->dirname);
3025 memcpy(fbuf, f->dirname, len);
3027 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
3029 strlcpy(fbuf, f->basename, MAXPATHLEN);
3034 /* Do a non-recursive scan of the named directory, possibly ignoring all
3035 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
3036 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
3037 * buffer (the functions we call will append names onto the end, but the old
3038 * dir value will be restored on exit). */
3039 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
3041 struct file_list *dirlist;
3042 char dirbuf[MAXPATHLEN];
3043 int save_recurse = recurse;
3044 int save_xfer_dirs = xfer_dirs;
3045 int save_prune_empty_dirs = prune_empty_dirs;
3048 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3049 if (dlen >= MAXPATHLEN)
3054 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3058 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
3059 xfer_dirs = save_xfer_dirs;
3060 recurse = save_recurse;
3061 if (INFO_GTE(PROGRESS, 1))
3062 flist_count_offset += dirlist->used;
3064 prune_empty_dirs = 0;
3065 dirlist->sorted = dirlist->files;
3066 flist_sort_and_clean(dirlist, 0);
3067 prune_empty_dirs = save_prune_empty_dirs;
3069 if (DEBUG_GTE(FLIST, 3))
3070 output_flist(dirlist);