2 * Generate and receive file lists.
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2002-2008 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
33 extern int am_generator;
34 extern int inc_recurse;
35 extern int do_progress;
36 extern int always_checksum;
38 extern int ignore_errors;
39 extern int numeric_ids;
43 extern int filesfrom_fd;
44 extern int one_file_system;
45 extern int copy_dirlinks;
46 extern int keep_dirlinks;
47 extern int preserve_uid;
48 extern int preserve_gid;
49 extern int preserve_acls;
50 extern int preserve_xattrs;
51 extern int preserve_links;
52 extern int preserve_hard_links;
53 extern int preserve_devices;
54 extern int preserve_specials;
58 extern int relative_paths;
59 extern int implied_dirs;
60 extern int file_extra_cnt;
61 extern int ignore_perishable;
62 extern int non_perishable_cnt;
63 extern int prune_empty_dirs;
64 extern int copy_links;
65 extern int copy_unsafe_links;
66 extern int protocol_version;
67 extern int sanitize_paths;
68 extern int munge_symlinks;
69 extern int need_unsorted_flist;
70 extern int unsort_ndx;
71 extern struct stats stats;
72 extern char *filesfrom_host;
74 extern char curr_dir[MAXPATHLEN];
76 extern struct chmod_mode_struct *chmod_modes;
78 extern struct filter_list_struct filter_list;
79 extern struct filter_list_struct daemon_filter_list;
82 extern int filesfrom_convert;
83 extern iconv_t ic_send, ic_recv;
86 #define PTR_SIZE (sizeof (struct file_struct *))
90 dev_t filesystem_dev; /* used to implement -x */
92 struct file_list *cur_flist, *first_flist, *dir_flist;
93 int send_dir_ndx = -1, send_dir_depth = -1;
94 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
95 int file_total = 0; /* total of all active items over all file-lists */
96 int flist_eof = 0; /* all the file-lists are now known */
99 #define SLASH_ENDING_NAME 1
100 #define DOTDIR_NAME 2
102 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
103 * internally, even if this platform does not allow files to have 64-bit inums.
104 * The only exception is if we're on a platform with no 64-bit type at all.
106 * Because we use read_longint() to get these off the wire, if you transfer
107 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
108 * machine with no 64-bit types then you will get an overflow error.
110 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
111 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
112 * be truncated. But it's a kind of silly thing to do anyhow. */
114 /* The tmp_* vars are used as a cache area by make_file() to store data
115 * that the sender doesn't need to remember in its file list. The data
116 * will survive just long enough to be used by send_file_entry(). */
117 static dev_t tmp_rdev;
118 #ifdef SUPPORT_HARD_LINKS
119 static int64 tmp_dev, tmp_ino;
121 static char tmp_sum[MAX_DIGEST_LEN];
123 static char empty_sum[MAX_DIGEST_LEN];
124 static int flist_count_offset; /* for --delete --progress */
125 static int dir_count = 0;
127 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
128 static void output_flist(struct file_list *flist);
130 void init_flist(void)
133 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
134 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
136 checksum_len = protocol_version < 21 ? 2
137 : protocol_version < 30 ? MD4_DIGEST_LEN
141 static int show_filelist_p(void)
143 return verbose && xfer_dirs && !am_server && !inc_recurse;
146 static void start_filelist_progress(char *kind)
148 rprintf(FCLIENT, "%s ... ", kind);
149 if (verbose > 1 || do_progress)
150 rprintf(FCLIENT, "\n");
154 static void emit_filelist_progress(int count)
156 rprintf(FCLIENT, " %d files...\r", count);
159 static void maybe_emit_filelist_progress(int count)
161 if (do_progress && show_filelist_p() && (count % 100) == 0)
162 emit_filelist_progress(count);
165 static void finish_filelist_progress(const struct file_list *flist)
168 /* This overwrites the progress line */
169 rprintf(FINFO, "%d file%sto consider\n",
170 flist->used, flist->used == 1 ? " " : "s ");
172 rprintf(FINFO, "done\n");
175 void show_flist_stats(void)
180 /* Stat either a symlink or its referent, depending on the settings of
181 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
183 * If path is the name of a symlink, then the linkbuf buffer (which must hold
184 * MAXPATHLEN chars) will be set to the symlink's target string.
186 * The stat structure pointed to by stp will contain information about the
187 * link or the referent as appropriate, if they exist. */
188 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
191 if (link_stat(path, stp, copy_dirlinks) < 0)
193 if (S_ISLNK(stp->st_mode)) {
194 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
197 linkbuf[llen] = '\0';
198 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
200 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
203 return x_stat(path, stp, NULL);
205 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
206 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
207 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
208 llen - SYMLINK_PREFIX_LEN + 1);
213 return x_stat(path, stp, NULL);
217 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
221 return x_stat(path, stp, NULL);
222 if (x_lstat(path, stp, NULL) < 0)
224 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
226 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
231 return x_stat(path, stp, NULL);
235 static inline int is_daemon_excluded(const char *fname, int is_dir)
237 if (daemon_filter_list.head
238 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
245 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
247 if (daemon_filter_list.head && path) {
250 while ((slash = strchr(slash+1, '/')) != NULL) {
253 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
262 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
271 /* This function is used to check if a file should be included/excluded
272 * from the list of files based on its name and type etc. The value of
273 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
274 static int is_excluded(const char *fname, int is_dir, int filter_level)
276 #if 0 /* This currently never happens, so avoid a useless compare. */
277 if (filter_level == NO_FILTERS)
280 if (is_daemon_excluded(fname, is_dir))
282 if (filter_level != ALL_FILTERS)
285 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
290 static void send_directory(int f, struct file_list *flist,
291 char *fbuf, int len, int flags);
293 static const char *pathname, *orig_dir;
294 static int pathname_len;
297 /* Make sure flist can hold at least flist->used + extra entries. */
298 static void flist_expand(struct file_list *flist, int extra)
300 struct file_struct **new_ptr;
302 if (flist->used + extra <= flist->malloced)
305 if (flist->malloced < FLIST_START)
306 flist->malloced = FLIST_START;
307 else if (flist->malloced >= FLIST_LINEAR)
308 flist->malloced += FLIST_LINEAR;
310 flist->malloced *= 2;
312 /* In case count jumped or we are starting the list
313 * with a known size just set it. */
314 if (flist->malloced < flist->used + extra)
315 flist->malloced = flist->used + extra;
317 new_ptr = realloc_array(flist->files, struct file_struct *,
320 if (verbose >= 2 && flist->malloced != FLIST_START) {
321 rprintf(FCLIENT, "[%s] expand file_list pointer array to %.0f bytes, did%s move\n",
323 (double)sizeof flist->files[0] * flist->malloced,
324 (new_ptr == flist->files) ? " not" : "");
327 flist->files = new_ptr;
330 out_of_memory("flist_expand");
333 static void flist_done_allocating(struct file_list *flist)
335 void *ptr = pool_boundary(flist->file_pool, 8*1024);
336 if (flist->pool_boundary == ptr)
337 flist->pool_boundary = NULL; /* list didn't use any pool memory */
339 flist->pool_boundary = ptr;
342 int push_pathname(const char *dir, int len)
348 orig_dir = strdup(curr_dir);
350 if (pathname && !pop_dir(orig_dir)) {
351 rsyserr(FERROR, errno, "pop_dir %s failed",
352 full_fname(orig_dir));
353 exit_cleanup(RERR_FILESELECT);
356 if (dir && !push_dir(dir, 0)) {
357 io_error |= IOERR_GENERAL;
358 rsyserr(FERROR, errno, "push_dir %s failed in %s",
359 full_fname(dir), curr_dir);
364 pathname_len = len >= 0 ? len : dir ? (int)strlen(dir) : 0;
369 static void send_file_entry(int f, const char *fname, struct file_struct *file, int ndx, int first_ndx)
371 static time_t modtime;
373 #ifdef SUPPORT_HARD_LINKS
377 static uint32 rdev_major;
380 static const char *user_name, *group_name;
381 static char lastname[MAXPATHLEN];
382 int first_hlink_ndx = -1;
386 /* Initialize starting value of xflags. */
387 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
389 if (file->flags & FLAG_CONTENT_DIR)
390 xflags = file->flags & FLAG_TOP_DIR;
391 else if (file->flags & FLAG_IMPLIED_DIR)
392 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
394 xflags = XMIT_NO_CONTENT_DIR;
396 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
398 if (file->mode == mode)
399 xflags |= XMIT_SAME_MODE;
403 if ((preserve_devices && IS_DEVICE(mode))
404 || (preserve_specials && IS_SPECIAL(mode))) {
405 if (protocol_version < 28) {
406 if (tmp_rdev == rdev)
407 xflags |= XMIT_SAME_RDEV_pre28;
412 if ((uint32)major(rdev) == rdev_major)
413 xflags |= XMIT_SAME_RDEV_MAJOR;
415 rdev_major = major(rdev);
416 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
417 xflags |= XMIT_RDEV_MINOR_8_pre30;
419 } else if (protocol_version < 28)
420 rdev = MAKEDEV(0, 0);
421 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
422 xflags |= XMIT_SAME_UID;
426 user_name = add_uid(uid);
427 if (inc_recurse && user_name)
428 xflags |= XMIT_USER_NAME_FOLLOWS;
431 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
432 xflags |= XMIT_SAME_GID;
436 group_name = add_gid(gid);
437 if (inc_recurse && group_name)
438 xflags |= XMIT_GROUP_NAME_FOLLOWS;
441 if (file->modtime == modtime)
442 xflags |= XMIT_SAME_TIME;
444 modtime = file->modtime;
446 #ifdef SUPPORT_HARD_LINKS
448 if (protocol_version >= 30) {
449 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
450 first_hlink_ndx = (int32)(long)np->data - 1;
451 if (first_hlink_ndx < 0) {
452 np->data = (void*)(long)(first_ndx + ndx + 1);
453 xflags |= XMIT_HLINK_FIRST;
456 if (tmp_dev == dev) {
457 if (protocol_version >= 28)
458 xflags |= XMIT_SAME_DEV_pre30;
462 xflags |= XMIT_HLINKED;
467 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
469 l2 = strlen(fname+l1);
472 xflags |= XMIT_SAME_NAME;
474 xflags |= XMIT_LONG_NAME;
476 /* We must make sure we don't send a zero flag byte or the
477 * other end will terminate the flist transfer. Note that
478 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
479 * it's harmless way to add a bit to the first flag byte. */
480 if (protocol_version >= 28) {
481 if (!xflags && !S_ISDIR(mode))
482 xflags |= XMIT_TOP_DIR;
483 if ((xflags & 0xFF00) || !xflags) {
484 xflags |= XMIT_EXTENDED_FLAGS;
485 write_shortint(f, xflags);
487 write_byte(f, xflags);
489 if (!(xflags & 0xFF))
490 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
491 write_byte(f, xflags);
493 if (xflags & XMIT_SAME_NAME)
495 if (xflags & XMIT_LONG_NAME)
496 write_varint30(f, l2);
499 write_buf(f, fname + l1, l2);
501 if (first_hlink_ndx >= 0) {
502 write_varint(f, first_hlink_ndx);
503 if (first_hlink_ndx >= first_ndx)
507 write_varlong30(f, F_LENGTH(file), 3);
508 if (!(xflags & XMIT_SAME_TIME)) {
509 if (protocol_version >= 30)
510 write_varlong(f, modtime, 4);
512 write_int(f, modtime);
514 if (!(xflags & XMIT_SAME_MODE))
515 write_int(f, to_wire_mode(mode));
516 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
517 if (protocol_version < 30)
520 write_varint(f, uid);
521 if (xflags & XMIT_USER_NAME_FOLLOWS) {
522 int len = strlen(user_name);
524 write_buf(f, user_name, len);
528 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
529 if (protocol_version < 30)
532 write_varint(f, gid);
533 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
534 int len = strlen(group_name);
536 write_buf(f, group_name, len);
540 if ((preserve_devices && IS_DEVICE(mode))
541 || (preserve_specials && IS_SPECIAL(mode))) {
542 if (protocol_version < 28) {
543 if (!(xflags & XMIT_SAME_RDEV_pre28))
544 write_int(f, (int)rdev);
546 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
547 write_varint30(f, major(rdev));
548 if (protocol_version >= 30)
549 write_varint(f, minor(rdev));
550 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
551 write_byte(f, minor(rdev));
553 write_int(f, minor(rdev));
558 if (preserve_links && S_ISLNK(mode)) {
559 const char *sl = F_SYMLINK(file);
560 int len = strlen(sl);
561 write_varint30(f, len);
562 write_buf(f, sl, len);
566 #ifdef SUPPORT_HARD_LINKS
567 if (tmp_dev != 0 && protocol_version < 30) {
568 if (protocol_version < 26) {
569 /* 32-bit dev_t and ino_t */
570 write_int(f, (int32)dev);
571 write_int(f, (int32)tmp_ino);
573 /* 64-bit dev_t and ino_t */
574 if (!(xflags & XMIT_SAME_DEV_pre30))
575 write_longint(f, dev);
576 write_longint(f, tmp_ino);
581 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
586 /* Prior to 28, we sent a useless set of nulls. */
589 write_buf(f, sum, checksum_len);
593 strlcpy(lastname, fname, MAXPATHLEN);
595 if (S_ISREG(mode) || S_ISLNK(mode))
596 stats.total_size += F_LENGTH(file);
599 static struct file_struct *recv_file_entry(struct file_list *flist,
602 static int64 modtime;
604 #ifdef SUPPORT_HARD_LINKS
608 static uint32 rdev_major;
611 static uint16 gid_flags;
612 static char lastname[MAXPATHLEN], *lastdir;
613 static int lastdir_depth, lastdir_len = -1;
614 static unsigned int del_hier_name_len = 0;
615 static int in_del_hier = 0;
616 char thisname[MAXPATHLEN];
617 unsigned int l1 = 0, l2 = 0;
618 int alloc_len, basename_len, linkname_len;
619 int extra_len = file_extra_cnt * EXTRA_LEN;
620 int first_hlink_ndx = -1;
622 const char *basename;
623 struct file_struct *file;
627 if (xflags & XMIT_SAME_NAME)
630 if (xflags & XMIT_LONG_NAME)
631 l2 = read_varint30(f);
635 if (l2 >= MAXPATHLEN - l1) {
637 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
638 xflags, l1, l2, lastname, who_am_i());
639 overflow_exit("recv_file_entry");
642 strlcpy(thisname, lastname, l1 + 1);
643 read_sbuf(f, &thisname[l1], l2);
644 thisname[l1 + l2] = 0;
646 /* Abuse basename_len for a moment... */
647 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
650 if (ic_recv != (iconv_t)-1) {
653 INIT_CONST_XBUF(outbuf, thisname);
654 INIT_XBUF(inbuf, lastname, basename_len, -1);
656 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
657 io_error |= IOERR_GENERAL;
659 "[%s] cannot convert filename: %s (%s)\n",
660 who_am_i(), lastname, strerror(errno));
663 outbuf.buf[outbuf.len] = '\0';
668 clean_fname(thisname, 0);
671 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
673 if ((basename = strrchr(thisname, '/')) != NULL) {
674 int len = basename++ - thisname;
675 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
676 lastdir = new_array(char, len + 1);
677 memcpy(lastdir, thisname, len);
680 lastdir_depth = count_dir_elements(lastdir);
684 basename_len = strlen(basename) + 1; /* count the '\0' */
686 #ifdef SUPPORT_HARD_LINKS
687 if (protocol_version >= 30
688 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
689 first_hlink_ndx = read_varint(f);
690 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
692 "hard-link reference out of range: %d (%d)\n",
693 first_hlink_ndx, flist->ndx_start + flist->used);
694 exit_cleanup(RERR_PROTOCOL);
696 if (first_hlink_ndx >= flist->ndx_start) {
697 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
698 file_length = F_LENGTH(first);
699 modtime = first->modtime;
702 uid = F_OWNER(first);
704 gid = F_GROUP(first);
705 if ((preserve_devices && IS_DEVICE(mode))
706 || (preserve_specials && IS_SPECIAL(mode))) {
707 uint32 *devp = F_RDEV_P(first);
708 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
709 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
711 if (preserve_links && S_ISLNK(mode))
712 linkname_len = strlen(F_SYMLINK(first)) + 1;
720 file_length = read_varlong30(f, 3);
721 if (!(xflags & XMIT_SAME_TIME)) {
722 if (protocol_version >= 30) {
723 modtime = read_varlong(f, 4);
724 #if SIZEOF_TIME_T < SIZEOF_INT64
725 if (!am_generator && (int64)(time_t)modtime != modtime) {
727 "Time value of %s truncated on receiver.\n",
732 modtime = read_int(f);
734 if (!(xflags & XMIT_SAME_MODE))
735 mode = from_wire_mode(read_int(f));
737 if (chmod_modes && !S_ISLNK(mode))
738 mode = tweak_mode(mode, chmod_modes);
740 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
741 if (protocol_version < 30)
742 uid = (uid_t)read_int(f);
744 uid = (uid_t)read_varint(f);
745 if (xflags & XMIT_USER_NAME_FOLLOWS)
746 uid = recv_user_name(f, uid);
747 else if (inc_recurse && am_root && !numeric_ids)
748 uid = match_uid(uid);
751 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
752 if (protocol_version < 30)
753 gid = (gid_t)read_int(f);
755 gid = (gid_t)read_varint(f);
757 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
758 gid = recv_group_name(f, gid, &gid_flags);
759 else if (inc_recurse && (!am_root || !numeric_ids))
760 gid = match_gid(gid, &gid_flags);
764 if ((preserve_devices && IS_DEVICE(mode))
765 || (preserve_specials && IS_SPECIAL(mode))) {
766 if (protocol_version < 28) {
767 if (!(xflags & XMIT_SAME_RDEV_pre28))
768 rdev = (dev_t)read_int(f);
771 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
772 rdev_major = read_varint30(f);
773 if (protocol_version >= 30)
774 rdev_minor = read_varint(f);
775 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
776 rdev_minor = read_byte(f);
778 rdev_minor = read_int(f);
779 rdev = MAKEDEV(rdev_major, rdev_minor);
781 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
783 } else if (protocol_version < 28)
784 rdev = MAKEDEV(0, 0);
787 if (preserve_links && S_ISLNK(mode)) {
788 linkname_len = read_varint30(f) + 1; /* count the '\0' */
789 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
790 rprintf(FERROR, "overflow: linkname_len=%d\n",
792 overflow_exit("recv_file_entry");
795 linkname_len += SYMLINK_PREFIX_LEN;
801 #ifdef SUPPORT_HARD_LINKS
803 if (preserve_hard_links) {
804 if (protocol_version < 28 && S_ISREG(mode))
805 xflags |= XMIT_HLINKED;
806 if (xflags & XMIT_HLINKED)
807 extra_len += (inc_recurse+1) * EXTRA_LEN;
812 /* Directories need an extra int32 for the default ACL. */
813 if (preserve_acls && S_ISDIR(mode))
814 extra_len += EXTRA_LEN;
817 if (always_checksum && S_ISREG(mode))
818 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
820 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
821 extra_len += EXTRA_LEN;
823 if (inc_recurse && S_ISDIR(mode)) {
824 if (one_file_system) {
825 /* Room to save the dir's device for -x */
826 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
828 pool = dir_flist->file_pool;
830 pool = flist->file_pool;
832 #if EXTRA_ROUNDING > 0
833 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
834 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
837 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
839 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
841 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
843 file = (struct file_struct *)bp;
844 bp += FILE_STRUCT_LEN;
846 memcpy(bp, basename, basename_len);
848 #ifdef SUPPORT_HARD_LINKS
849 if (xflags & XMIT_HLINKED)
850 file->flags |= FLAG_HLINKED;
852 file->modtime = (time_t)modtime;
853 file->len32 = (uint32)file_length;
854 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
855 file->flags |= FLAG_LENGTH64;
856 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
863 file->flags |= gid_flags;
866 F_NDX(file) = flist->used + flist->ndx_start;
868 if (basename != thisname) {
869 file->dirname = lastdir;
870 F_DEPTH(file) = lastdir_depth + 1;
875 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
877 if (protocol_version >= 30) {
878 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
879 if (xflags & XMIT_TOP_DIR)
880 file->flags |= FLAG_TOP_DIR;
881 file->flags |= FLAG_CONTENT_DIR;
882 } else if (xflags & XMIT_TOP_DIR)
883 file->flags |= FLAG_IMPLIED_DIR;
884 } else if (xflags & XMIT_TOP_DIR) {
885 in_del_hier = recurse;
886 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
887 if (relative_paths && del_hier_name_len > 2
888 && lastname[del_hier_name_len-1] == '.'
889 && lastname[del_hier_name_len-2] == '/')
890 del_hier_name_len -= 2;
891 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
892 } else if (in_del_hier) {
893 if (!relative_paths || !del_hier_name_len
894 || (l1 >= del_hier_name_len
895 && lastname[del_hier_name_len] == '/'))
896 file->flags |= FLAG_CONTENT_DIR;
902 if ((preserve_devices && IS_DEVICE(mode))
903 || (preserve_specials && IS_SPECIAL(mode))) {
904 uint32 *devp = F_RDEV_P(file);
905 DEV_MAJOR(devp) = major(rdev);
906 DEV_MINOR(devp) = minor(rdev);
912 if (first_hlink_ndx >= flist->ndx_start) {
913 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
914 memcpy(bp, F_SYMLINK(first), linkname_len);
915 } else if (munge_symlinks) {
916 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
917 bp += SYMLINK_PREFIX_LEN;
918 linkname_len -= SYMLINK_PREFIX_LEN;
919 read_sbuf(f, bp, linkname_len - 1);
921 read_sbuf(f, bp, linkname_len - 1);
923 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
928 #ifdef SUPPORT_HARD_LINKS
929 if (preserve_hard_links && xflags & XMIT_HLINKED) {
930 if (protocol_version >= 30) {
931 if (xflags & XMIT_HLINK_FIRST) {
932 F_HL_GNUM(file) = flist->ndx_start + flist->used;
934 F_HL_GNUM(file) = first_hlink_ndx;
936 static int32 cnt = 0;
937 struct ht_int64_node *np;
940 if (protocol_version < 26) {
944 if (!(xflags & XMIT_SAME_DEV_pre30))
945 dev = read_longint(f);
946 ino = read_longint(f);
948 np = idev_find(dev, ino);
949 ndx = (int32)(long)np->data - 1;
952 np->data = (void*)(long)cnt;
954 F_HL_GNUM(file) = ndx;
959 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
963 /* Prior to 28, we get a useless set of nulls. */
966 if (first_hlink_ndx >= flist->ndx_start) {
967 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
968 memcpy(bp, F_SUM(first), checksum_len);
970 read_buf(f, bp, checksum_len);
974 if (preserve_acls && !S_ISLNK(mode))
975 receive_acl(file, f);
977 #ifdef SUPPORT_XATTRS
979 receive_xattr(file, f );
982 if (S_ISREG(mode) || S_ISLNK(mode))
983 stats.total_size += file_length;
988 /* Create a file_struct for a named file by reading its stat() information
989 * and performing extensive checks against global options.
991 * Returns a pointer to the new file struct, or NULL if there was an error
992 * or this file should be excluded. */
993 struct file_struct *make_file(const char *fname, struct file_list *flist,
994 STRUCT_STAT *stp, int flags, int filter_level)
996 static char *lastdir;
997 static int lastdir_len = -1;
998 struct file_struct *file;
999 char thisname[MAXPATHLEN];
1000 char linkname[MAXPATHLEN];
1001 int alloc_len, basename_len, linkname_len;
1002 int extra_len = file_extra_cnt * EXTRA_LEN;
1003 const char *basename;
1009 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1010 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1013 clean_fname(thisname, 0);
1015 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1017 if (stp && S_ISDIR(stp->st_mode)) {
1018 st = *stp; /* Needed for "symlink/." with --relative. */
1019 *linkname = '\0'; /* make IBM code checker happy */
1020 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1021 int save_errno = errno;
1022 /* See if file is excluded before reporting an error. */
1023 if (filter_level != NO_FILTERS
1024 && (is_excluded(thisname, 0, filter_level)
1025 || is_excluded(thisname, 1, filter_level))) {
1026 if (ignore_perishable && save_errno != ENOENT)
1027 non_perishable_cnt++;
1030 if (save_errno == ENOENT) {
1031 #ifdef SUPPORT_LINKS
1032 /* When our options tell us to follow a symlink that
1033 * points nowhere, tell the user about the symlink
1034 * instead of giving a "vanished" message. We only
1035 * dereference a symlink if one of the --copy*links
1036 * options was specified, so there's no need for the
1037 * extra lstat() if one of these options isn't on. */
1038 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1039 && x_lstat(thisname, &st, NULL) == 0
1040 && S_ISLNK(st.st_mode)) {
1041 io_error |= IOERR_GENERAL;
1042 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1043 full_fname(thisname));
1047 enum logcode c = am_daemon && protocol_version < 28
1048 ? FERROR : FWARNING;
1049 io_error |= IOERR_VANISHED;
1050 rprintf(c, "file has vanished: %s\n",
1051 full_fname(thisname));
1054 io_error |= IOERR_GENERAL;
1055 rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
1056 full_fname(thisname));
1061 /* backup.c calls us with filter_level set to NO_FILTERS. */
1062 if (filter_level == NO_FILTERS)
1065 if (S_ISDIR(st.st_mode)) {
1067 rprintf(FINFO, "skipping directory %s\n", thisname);
1070 /* -x only affects dirs because we need to avoid recursing
1071 * into a mount-point directory, not to avoid copying a
1072 * symlinked file if -L (or similar) was specified. */
1073 if (one_file_system && st.st_dev != filesystem_dev
1074 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1075 if (one_file_system > 1) {
1078 "[%s] skipping mount-point dir %s\n",
1079 who_am_i(), thisname);
1083 flags |= FLAG_MOUNT_DIR;
1084 flags &= ~FLAG_CONTENT_DIR;
1087 flags &= ~FLAG_CONTENT_DIR;
1089 if (S_ISDIR(st.st_mode)) {
1090 if (flags & FLAG_DOTDIR_NAME) {
1091 /* A "." fname (or "/." fname in relative mode) is
1092 * never excluded. No other trailing-dotdir names
1096 excl_ret = is_excluded(thisname, 1, filter_level);
1098 excl_ret = is_excluded(thisname, 0, filter_level);
1100 if (ignore_perishable)
1101 non_perishable_cnt++;
1105 if (lp_ignore_nonreadable(module_id)) {
1106 #ifdef SUPPORT_LINKS
1107 if (!S_ISLNK(st.st_mode))
1109 if (access(thisname, R_OK) != 0)
1115 /* Only divert a directory in the main transfer. */
1117 if (flist->prev && S_ISDIR(st.st_mode)
1118 && flags & FLAG_DIVERT_DIRS) {
1119 /* Room for parent/sibling/next-child info. */
1120 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1122 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1123 pool = dir_flist->file_pool;
1125 pool = flist->file_pool;
1128 /* Directories need an extra int32 for the default ACL. */
1129 if (preserve_acls && S_ISDIR(st.st_mode))
1130 extra_len += EXTRA_LEN;
1136 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1137 who_am_i(), thisname, filter_level);
1140 if ((basename = strrchr(thisname, '/')) != NULL) {
1141 int len = basename++ - thisname;
1142 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1143 lastdir = new_array(char, len + 1);
1144 memcpy(lastdir, thisname, len);
1145 lastdir[len] = '\0';
1149 basename = thisname;
1150 basename_len = strlen(basename) + 1; /* count the '\0' */
1152 #ifdef SUPPORT_LINKS
1153 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1158 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1159 extra_len += EXTRA_LEN;
1161 #if EXTRA_ROUNDING > 0
1162 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1163 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1166 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1169 bp = pool_alloc(pool, alloc_len, "make_file");
1171 if (!(bp = new_array(char, alloc_len)))
1172 out_of_memory("make_file");
1175 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1177 file = (struct file_struct *)bp;
1178 bp += FILE_STRUCT_LEN;
1180 memcpy(bp, basename, basename_len);
1182 #ifdef SUPPORT_HARD_LINKS
1183 if (preserve_hard_links && flist && flist->prev) {
1184 if (protocol_version >= 28
1185 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1186 : S_ISREG(st.st_mode)) {
1187 tmp_dev = st.st_dev;
1188 tmp_ino = st.st_ino;
1194 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1195 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1196 tmp_rdev = st.st_rdev;
1201 file->flags = flags;
1202 file->modtime = st.st_mtime;
1203 file->len32 = (uint32)st.st_size;
1204 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1205 file->flags |= FLAG_LENGTH64;
1206 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1208 file->mode = st.st_mode;
1209 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1210 F_OWNER(file) = st.st_uid;
1211 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1212 F_GROUP(file) = st.st_gid;
1214 if (basename != thisname)
1215 file->dirname = lastdir;
1217 #ifdef SUPPORT_LINKS
1219 memcpy(bp + basename_len, linkname, linkname_len);
1222 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1223 file_checksum(thisname, tmp_sum, st.st_size);
1226 F_PATHNAME(file) = pathname;
1228 F_DEPTH(file) = extra_len / EXTRA_LEN;
1230 /* This code is only used by the receiver when it is building
1231 * a list of files for a delete pass. */
1232 if (keep_dirlinks && linkname_len && flist) {
1234 int save_mode = file->mode;
1235 file->mode = S_IFDIR; /* Find a directory with our name. */
1236 if (flist_find(dir_flist, file) >= 0
1237 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1238 file->modtime = st2.st_mtime;
1240 file->mode = st2.st_mode;
1242 F_OWNER(file) = st2.st_uid;
1244 F_GROUP(file) = st2.st_gid;
1246 file->mode = save_mode;
1249 if (basename_len == 0+1) {
1256 F_NDX(file) = dir_count;
1261 /* Only called for temporary file_struct entries created by make_file(). */
1262 void unmake_file(struct file_struct *file)
1264 free(REQ_EXTRA(file, F_DEPTH(file)));
1267 static struct file_struct *send_file_name(int f, struct file_list *flist,
1268 const char *fname, STRUCT_STAT *stp,
1269 int flags, int filter_level)
1271 struct file_struct *file;
1273 file = make_file(fname, flist, stp, flags, filter_level);
1277 if (chmod_modes && !S_ISLNK(file->mode))
1278 file->mode = tweak_mode(file->mode, chmod_modes);
1281 char fbuf[MAXPATHLEN];
1282 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1287 if (ic_send != (iconv_t)-1) {
1290 INIT_CONST_XBUF(outbuf, fbuf);
1292 if (file->dirname) {
1293 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1294 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1295 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1298 outbuf.buf[outbuf.len++] = '/';
1301 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1302 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1304 io_error |= IOERR_GENERAL;
1306 "[%s] cannot convert filename: %s (%s)\n",
1307 who_am_i(), f_name(file, fbuf), strerror(errno));
1310 outbuf.buf[outbuf.len] = '\0';
1316 if (preserve_acls && !S_ISLNK(file->mode)) {
1317 sx.st.st_mode = file->mode;
1318 sx.acc_acl = sx.def_acl = NULL;
1319 if (get_acl(fname, &sx) < 0)
1323 #ifdef SUPPORT_XATTRS
1324 if (preserve_xattrs) {
1326 if (get_xattr(fname, &sx) < 0)
1331 send_file_entry(f, fbuf, file, flist->used, flist->ndx_start);
1334 if (preserve_acls && !S_ISLNK(file->mode)) {
1339 #ifdef SUPPORT_XATTRS
1340 if (preserve_xattrs) {
1341 F_XATTR(file) = send_xattr(&sx, f);
1347 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1349 flist_expand(flist, 1);
1350 flist->files[flist->used++] = file;
1355 static void send_if_directory(int f, struct file_list *flist,
1356 struct file_struct *file,
1357 char *fbuf, unsigned int ol,
1360 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1362 if (S_ISDIR(file->mode)
1363 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1365 unsigned int len = strlen(fbuf);
1366 if (len > 1 && fbuf[len-1] == '/')
1368 if (len >= MAXPATHLEN - 1) {
1369 io_error |= IOERR_GENERAL;
1370 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1374 save_filters = push_local_filters(fbuf, len);
1375 send_directory(f, flist, fbuf, len, flags);
1376 pop_local_filters(save_filters);
1383 static int file_compare(const void *file1, const void *file2)
1385 return f_name_cmp(*(struct file_struct **)file1,
1386 *(struct file_struct **)file2);
1389 /* The guts of a merge-sort algorithm. This was derived from the glibc
1390 * version, but I (Wayne) changed the merge code to do less copying and
1391 * to require only half the amount of temporary memory. */
1392 static void fsort_tmp(struct file_struct **fp, size_t num,
1393 struct file_struct **tmp)
1395 struct file_struct **f1, **f2, **t;
1404 fsort_tmp(f1, n1, tmp);
1406 fsort_tmp(f2, n2, tmp);
1408 while (f_name_cmp(*f1, *f2) <= 0) {
1415 memcpy(t, f1, n1 * PTR_SIZE);
1417 *f1++ = *f2++, n2--;
1419 while (n1 > 0 && n2 > 0) {
1420 if (f_name_cmp(*t, *f2) <= 0)
1423 *f1++ = *f2++, n2--;
1427 memcpy(f1, t, n1 * PTR_SIZE);
1430 /* This file-struct sorting routine makes sure that any identical names in
1431 * the file list stay in the same order as they were in the original list.
1432 * This is particularly vital in inc_recurse mode where we expect a sort
1433 * on the flist to match the exact order of a sort on the dir_flist. */
1434 static void fsort(struct file_struct **fp, size_t num)
1440 qsort(fp, num, PTR_SIZE, file_compare);
1442 struct file_struct **tmp = new_array(struct file_struct *,
1444 fsort_tmp(fp, num, tmp);
1449 /* We take an entire set of sibling dirs from the sorted flist and link them
1450 * into the tree, setting the appropriate parent/child/sibling pointers. */
1451 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1456 int32 *parent_dp = parent_ndx < 0 ? NULL
1457 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1459 flist_expand(dir_flist, dir_cnt);
1460 dir_flist->sorted = dir_flist->files;
1462 for (i = 0; dir_cnt; i++) {
1463 struct file_struct *file = from_flist->sorted[i];
1465 if (!S_ISDIR(file->mode))
1468 dir_flist->files[dir_flist->used++] = file;
1471 if (file->basename[0] == '.' && file->basename[1] == '\0')
1475 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1477 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1479 send_dir_ndx = dir_flist->used - 1;
1481 dp = F_DIR_NODE_P(file);
1482 DIR_PARENT(dp) = parent_ndx;
1483 DIR_FIRST_CHILD(dp) = -1;
1486 DIR_NEXT_SIBLING(dp) = -1;
1489 /* This function is normally called by the sender, but the receiving side also
1490 * calls it from get_dirlist() with f set to -1 so that we just construct the
1491 * file list in memory without sending it over the wire. Also, get_dirlist()
1492 * might call this with f set to -2, which also indicates that local filter
1493 * rules should be ignored. */
1494 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1501 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1502 int start = flist->used;
1503 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1505 assert(flist != NULL);
1507 if (!(d = opendir(fbuf))) {
1508 io_error |= IOERR_GENERAL;
1509 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1514 if (len != 1 || *fbuf != '/')
1517 remainder = MAXPATHLEN - (p - fbuf);
1519 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1520 char *dname = d_name(di);
1521 if (dname[0] == '.' && (dname[1] == '\0'
1522 || (dname[1] == '.' && dname[2] == '\0')))
1524 if (strlcpy(p, dname, remainder) >= remainder) {
1525 io_error |= IOERR_GENERAL;
1527 "cannot send long-named file %s\n",
1531 if (dname[0] == '\0') {
1532 io_error |= IOERR_GENERAL;
1534 "cannot send file with empty name in %s\n",
1539 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1545 io_error |= IOERR_GENERAL;
1546 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1551 if (f >= 0 && recurse && !divert_dirs) {
1552 int i, end = flist->used - 1;
1553 /* send_if_directory() bumps flist->used, so use "end". */
1554 for (i = start; i <= end; i++)
1555 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1559 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1560 char *start, char *limit, int flags, char name_type)
1562 static char lastpath[MAXPATHLEN] = "";
1563 static int lastpath_len = 0;
1564 static struct file_struct *lastpath_struct = NULL;
1565 struct file_struct *file;
1566 item_list *relname_list;
1567 relnamecache **rnpp;
1568 int len, need_new_dir, depth = 0;
1569 struct filter_list_struct save_filter_list = filter_list;
1571 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1572 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1575 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1576 && lastpath_len == limit - fname
1577 && strncmp(lastpath, fname, lastpath_len) == 0)
1582 char *tp = fname, *lp = lastpath;
1583 /* Skip any initial directories in our path that we
1584 * have in common with lastpath. */
1585 assert(start == fname);
1586 for ( ; ; tp++, lp++) {
1588 if (*lp == '/' || *lp == '\0')
1603 int save_copy_links = copy_links;
1604 int save_xfer_dirs = xfer_dirs;
1607 copy_links = xfer_dirs = 1;
1611 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1613 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1615 if (!inc_recurse && file && S_ISDIR(file->mode))
1616 change_local_filter_dir(fname, strlen(fname), depth);
1620 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1622 if (file && !S_ISDIR(file->mode))
1624 lastpath_struct = file;
1625 } else if (file && S_ISDIR(file->mode))
1626 change_local_filter_dir(fname, strlen(fname), ++depth);
1628 strlcpy(lastpath, fname, sizeof lastpath);
1629 lastpath_len = limit - fname;
1633 copy_links = save_copy_links;
1634 xfer_dirs = save_xfer_dirs;
1640 if (!lastpath_struct)
1641 goto done; /* dir must have vanished */
1643 len = strlen(limit+1);
1644 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1645 if (!relname_list) {
1646 if (!(relname_list = new0(item_list)))
1647 out_of_memory("send_implied_dirs");
1648 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1650 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1651 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1652 out_of_memory("send_implied_dirs");
1653 (*rnpp)->name_type = name_type;
1654 strlcpy((*rnpp)->fname, limit+1, len + 1);
1657 filter_list = save_filter_list;
1660 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1662 char fbuf[MAXPATHLEN];
1663 item_list *relname_list;
1664 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1668 dlen = strlen(fbuf);
1670 if (F_PATHNAME(file) != pathname) {
1671 if (!push_pathname(F_PATHNAME(file), -1))
1672 exit_cleanup(RERR_FILESELECT);
1675 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1677 if (file->flags & FLAG_CONTENT_DIR) {
1678 if (one_file_system) {
1680 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1681 io_error |= IOERR_GENERAL;
1682 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1686 filesystem_dev = st.st_dev;
1688 send_directory(f, flist, fbuf, dlen, flags);
1691 if (!relative_paths)
1694 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1698 for (j = 0; j < relname_list->count; j++) {
1700 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1701 char name_type = rnp->name_type;
1704 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1706 if (len >= (int)sizeof fbuf)
1707 continue; /* Impossible... */
1709 slash = strchr(fbuf+dlen+1, '/');
1711 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1715 if (name_type != NORMAL_NAME) {
1717 if (link_stat(fbuf, &st, 1) != 0) {
1718 io_error |= IOERR_GENERAL;
1719 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1723 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1725 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1731 void send_extra_file_list(int f, int at_least)
1733 struct file_list *flist;
1736 int old_cnt, save_io_error = io_error;
1741 /* Keep sending data until we have the requested number of
1742 * files in the upcoming file-lists. */
1743 old_cnt = cur_flist->used;
1744 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1745 old_cnt += flist->used;
1746 while (file_total - old_cnt < at_least) {
1747 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1748 int dir_ndx, dstart = dir_count;
1749 const char *pathname = F_PATHNAME(file);
1752 flist = flist_new(0, "send_extra_file_list");
1753 start_write = stats.total_written;
1756 dir_ndx = F_NDX(file);
1758 dir_ndx = send_dir_ndx;
1759 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1760 flist->parent_ndx = dir_ndx;
1762 send1extra(f, file, flist);
1763 prev_flags = file->flags;
1764 dp = F_DIR_NODE_P(file);
1766 /* If there are any duplicate directory names that follow, we
1767 * send all the dirs together in one file-list. The dir_flist
1768 * tree links all the child subdirs onto the last dup dir. */
1769 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1770 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1771 send_dir_ndx = dir_ndx;
1772 file = dir_flist->sorted[dir_ndx];
1773 /* Try to avoid some duplicate scanning of identical dirs. */
1774 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1775 file->flags &= ~FLAG_CONTENT_DIR;
1776 send1extra(f, file, flist);
1777 prev_flags = file->flags;
1778 dp = F_DIR_NODE_P(file);
1783 if (need_unsorted_flist) {
1784 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1785 out_of_memory("send_extra_file_list");
1786 memcpy(flist->sorted, flist->files,
1787 flist->used * sizeof (struct file_struct*));
1789 flist->sorted = flist->files;
1791 flist_sort_and_clean(flist, 0);
1793 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1794 flist_done_allocating(flist);
1796 file_total += flist->used;
1797 stats.flist_size += stats.total_written - start_write;
1798 stats.num_files += flist->used;
1800 output_flist(flist);
1802 if (DIR_FIRST_CHILD(dp) >= 0) {
1803 send_dir_ndx = DIR_FIRST_CHILD(dp);
1806 while (DIR_NEXT_SIBLING(dp) < 0) {
1807 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1808 write_ndx(f, NDX_FLIST_EOF);
1810 change_local_filter_dir(NULL, 0, 0);
1814 file = dir_flist->sorted[send_dir_ndx];
1815 dp = F_DIR_NODE_P(file);
1817 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1822 if (io_error != save_io_error && !ignore_errors)
1823 send_msg_int(MSG_IO_ERROR, io_error);
1826 struct file_list *send_file_list(int f, int argc, char *argv[])
1828 static const char *lastdir;
1829 static int lastdir_len = -1;
1833 struct file_list *flist;
1834 struct timeval start_tv, end_tv;
1837 int disable_buffering;
1838 int arg_flags, flags = recurse ? FLAG_CONTENT_DIR : 0;
1839 int reading_remotely = filesfrom_host != NULL;
1840 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1842 | (filesfrom_convert ? RL_CONVERT : 0)
1844 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1845 int implied_dot_dir = 0;
1847 rprintf(FLOG, "building file list\n");
1848 if (show_filelist_p())
1849 start_filelist_progress("building file list");
1850 else if (inc_recurse && verbose && !am_server)
1851 rprintf(FCLIENT, "sending incremental file list\n");
1853 start_write = stats.total_written;
1854 gettimeofday(&start_tv, NULL);
1856 if (relative_paths && protocol_version >= 30)
1857 implied_dirs = 1; /* We send flagged implied dirs */
1859 #ifdef SUPPORT_HARD_LINKS
1860 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1864 flist = cur_flist = flist_new(0, "send_file_list");
1866 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1867 flags |= FLAG_DIVERT_DIRS;
1869 dir_flist = cur_flist;
1871 disable_buffering = io_start_buffering_out(f);
1872 if (filesfrom_fd >= 0) {
1873 if (argv[0] && !push_dir(argv[0], 0)) {
1874 rsyserr(FERROR_XFER, errno, "push_dir %s failed in %s",
1875 full_fname(argv[0]), curr_dir);
1876 exit_cleanup(RERR_FILESELECT);
1882 char fbuf[MAXPATHLEN], *fn, name_type;
1885 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1887 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1891 strlcpy(fbuf, *argv++, MAXPATHLEN);
1893 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1897 if (relative_paths) {
1898 /* We clean up fbuf below. */
1899 name_type = NORMAL_NAME;
1900 } else if (!len || fbuf[len - 1] == '/') {
1901 if (len == 2 && fbuf[0] == '.') {
1902 /* Turn "./" into just "." rather than "./." */
1905 if (len + 1 >= MAXPATHLEN)
1906 overflow_exit("send_file_list");
1910 name_type = DOTDIR_NAME;
1911 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1912 && (len == 2 || fbuf[len-3] == '/')) {
1913 if (len + 2 >= MAXPATHLEN)
1914 overflow_exit("send_file_list");
1918 name_type = DOTDIR_NAME;
1919 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
1920 name_type = DOTDIR_NAME;
1922 name_type = NORMAL_NAME;
1926 if (!relative_paths) {
1927 p = strrchr(fbuf, '/');
1934 len -= p - fbuf + 1;
1939 if ((p = strstr(fbuf, "/./")) != NULL) {
1945 clean_fname(dir, 0);
1951 *--fn = '\0'; /* ensure room for '.' */
1954 /* A leading ./ can be used in relative mode to affect
1955 * the dest dir without its name being in the path. */
1956 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
1957 send_file_name(f, flist, ".", NULL,
1958 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
1960 implied_dot_dir = 1;
1962 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
1963 | CFN_DROP_TRAILING_DOT_DIR);
1968 name_type = DOTDIR_NAME;
1969 } else if (fn[0] == '.')
1970 name_type = DOTDIR_NAME;
1971 } else if (fn[len-1] == '/') {
1973 if (len == 1 && *fn == '.')
1974 name_type = DOTDIR_NAME;
1976 name_type = SLASH_ENDING_NAME;
1978 /* Reject a ".." dir in the active part of the path. */
1979 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
1980 if ((p[2] == '/' || p[2] == '\0')
1981 && (p == fn || p[-1] == '/')) {
1983 "found \"..\" dir in relative path: %s\n",
1985 exit_cleanup(RERR_SYNTAX);
1993 name_type = DOTDIR_NAME;
1996 dirlen = dir ? strlen(dir) : 0;
1997 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
1998 if (path_is_daemon_excluded(dir, 0)) {
1999 io_error |= IOERR_GENERAL;
2000 rsyserr(FERROR, errno, "push_dir %s failed in %s",
2001 full_fname(dir), curr_dir);
2004 if (!push_pathname(dir ? strdup(dir) : NULL, dirlen))
2007 lastdir_len = pathname_len;
2008 } else if (!push_pathname(lastdir, lastdir_len))
2012 memmove(fbuf, fn, len + 1);
2014 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2015 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2016 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2017 io_error |= IOERR_GENERAL;
2018 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2023 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2024 rprintf(FINFO, "skipping directory %s\n", fbuf);
2028 if (inc_recurse && relative_paths && *fbuf) {
2029 if ((p = strchr(fbuf+1, '/')) != NULL) {
2030 if (p - fbuf == 1 && *fbuf == '.') {
2031 if ((fn = strchr(p+1, '/')) != NULL)
2035 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2039 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2040 /* Send the implied directories at the start of the
2041 * source spec, so we get their permissions right. */
2042 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2045 if (one_file_system)
2046 filesystem_dev = st.st_dev;
2048 arg_flags = name_type == DOTDIR_NAME ? FLAG_DOTDIR_NAME : 0;
2050 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2051 struct file_struct *file;
2052 arg_flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
2053 file = send_file_name(f, flist, fbuf, &st,
2054 arg_flags | flags, ALL_FILTERS);
2058 if (name_type == DOTDIR_NAME) {
2059 if (send_dir_depth < 0) {
2061 change_local_filter_dir(fbuf, len, send_dir_depth);
2063 send_directory(f, flist, fbuf, len, flags);
2066 send_if_directory(f, flist, file, fbuf, len, flags);
2068 send_file_name(f, flist, fbuf, &st, arg_flags | flags, ALL_FILTERS);
2071 gettimeofday(&end_tv, NULL);
2072 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2073 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2074 if (stats.flist_buildtime == 0)
2075 stats.flist_buildtime = 1;
2078 write_byte(f, 0); /* Indicate end of file list */
2080 #ifdef SUPPORT_HARD_LINKS
2081 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2085 if (show_filelist_p())
2086 finish_filelist_progress(flist);
2088 gettimeofday(&end_tv, NULL);
2089 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2090 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2092 /* When converting names, both sides keep an unsorted file-list array
2093 * because the names will differ on the sending and receiving sides
2094 * (both sides will use the unsorted index number for each item). */
2096 /* Sort the list without removing any duplicates. This allows the
2097 * receiving side to ask for whatever name it kept. For incremental
2098 * recursion mode, the sender marks duplicate dirs so that it can
2099 * send them together in a single file-list. */
2100 if (need_unsorted_flist) {
2101 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2102 out_of_memory("send_file_list");
2103 memcpy(flist->sorted, flist->files,
2104 flist->used * sizeof (struct file_struct*));
2106 flist->sorted = flist->files;
2107 flist_sort_and_clean(flist, 0);
2108 file_total += flist->used;
2110 if (numeric_ids <= 0 && !inc_recurse)
2113 /* send the io_error flag */
2114 if (protocol_version < 30)
2115 write_int(f, ignore_errors ? 0 : io_error);
2116 else if (io_error && !ignore_errors)
2117 send_msg_int(MSG_IO_ERROR, io_error);
2119 if (disable_buffering)
2120 io_end_buffering_out();
2122 stats.flist_size = stats.total_written - start_write;
2123 stats.num_files = flist->used;
2126 output_flist(flist);
2129 rprintf(FINFO, "send_file_list done\n");
2133 add_dirs_to_tree(-1, flist, dir_count);
2134 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2135 flist->parent_ndx = -1;
2136 flist_done_allocating(flist);
2137 if (send_dir_ndx < 0) {
2138 write_ndx(f, NDX_FLIST_EOF);
2141 else if (file_total == 1) {
2142 /* If we're creating incremental file-lists and there
2143 * was just 1 item in the first file-list, send 1 more
2144 * file-list to check if this is a 1-file xfer. */
2145 send_extra_file_list(f, 1);
2152 struct file_list *recv_file_list(int f)
2154 struct file_list *flist;
2159 rprintf(FLOG, "receiving file list\n");
2160 if (show_filelist_p())
2161 start_filelist_progress("receiving file list");
2162 else if (inc_recurse && verbose && !am_server && !first_flist)
2163 rprintf(FCLIENT, "receiving incremental file list\n");
2165 start_read = stats.total_read;
2167 #ifdef SUPPORT_HARD_LINKS
2168 if (preserve_hard_links && !first_flist)
2172 flist = flist_new(0, "recv_file_list");
2175 if (flist->ndx_start == 1)
2176 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2177 dstart = dir_flist->used;
2183 while ((flags = read_byte(f)) != 0) {
2184 struct file_struct *file;
2186 flist_expand(flist, 1);
2188 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2189 flags |= read_byte(f) << 8;
2190 file = recv_file_entry(flist, flags, f);
2192 if (inc_recurse && S_ISDIR(file->mode)) {
2193 flist_expand(dir_flist, 1);
2194 dir_flist->files[dir_flist->used++] = file;
2197 flist->files[flist->used++] = file;
2199 maybe_emit_filelist_progress(flist->used);
2202 rprintf(FINFO, "recv_file_name(%s)\n",
2203 f_name(file, NULL));
2206 file_total += flist->used;
2209 rprintf(FINFO, "received %d names\n", flist->used);
2211 if (show_filelist_p())
2212 finish_filelist_progress(flist);
2214 if (need_unsorted_flist) {
2215 /* Create an extra array of index pointers that we can sort for
2216 * the generator's use (for wading through the files in sorted
2217 * order and for calling flist_find()). We keep the "files"
2218 * list unsorted for our exchange of index numbers with the
2219 * other side (since their names may not sort the same). */
2220 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2221 out_of_memory("recv_file_list");
2222 memcpy(flist->sorted, flist->files,
2223 flist->used * sizeof (struct file_struct*));
2224 if (inc_recurse && dir_flist->used > dstart) {
2225 static int dir_flist_malloced = 0;
2226 if (dir_flist_malloced < dir_flist->malloced) {
2227 dir_flist->sorted = realloc_array(dir_flist->sorted,
2228 struct file_struct *,
2229 dir_flist->malloced);
2230 dir_flist_malloced = dir_flist->malloced;
2232 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2233 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2234 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2237 flist->sorted = flist->files;
2238 if (inc_recurse && dir_flist->used > dstart) {
2239 dir_flist->sorted = dir_flist->files;
2240 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2245 flist_done_allocating(flist);
2247 recv_id_list(f, flist);
2249 flist_sort_and_clean(flist, relative_paths);
2251 if (protocol_version < 30) {
2252 /* Recv the io_error flag */
2256 io_error |= read_int(f);
2257 } else if (inc_recurse && flist->ndx_start == 1) {
2258 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2259 flist->parent_ndx = -1;
2263 output_flist(flist);
2266 rprintf(FINFO, "recv_file_list done\n");
2268 stats.flist_size += stats.total_read - start_read;
2269 stats.num_files += flist->used;
2274 /* This is only used once by the receiver if the very first file-list
2275 * has exactly one item in it. */
2276 void recv_additional_file_list(int f)
2278 struct file_list *flist;
2279 int ndx = read_ndx(f);
2280 if (ndx == NDX_FLIST_EOF) {
2282 change_local_filter_dir(NULL, 0, 0);
2284 ndx = NDX_FLIST_OFFSET - ndx;
2285 if (ndx < 0 || ndx >= dir_flist->used) {
2286 ndx = NDX_FLIST_OFFSET - ndx;
2288 "[%s] Invalid dir index: %d (%d - %d)\n",
2289 who_am_i(), ndx, NDX_FLIST_OFFSET,
2290 NDX_FLIST_OFFSET - dir_flist->used + 1);
2291 exit_cleanup(RERR_PROTOCOL);
2294 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2297 flist = recv_file_list(f);
2298 flist->parent_ndx = ndx;
2302 /* Search for an identically-named item in the file list. Note that the
2303 * items must agree in their directory-ness, or no match is returned. */
2304 int flist_find(struct file_list *flist, struct file_struct *f)
2306 int low = flist->low, high = flist->high;
2307 int diff, mid, mid_up;
2309 while (low <= high) {
2310 mid = (low + high) / 2;
2311 if (F_IS_ACTIVE(flist->sorted[mid]))
2314 /* Scan for the next non-empty entry using the cached
2315 * distance values. If the value isn't fully up-to-
2316 * date, update it. */
2317 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2318 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2320 mid_up += F_DEPTH(flist->sorted[mid_up]);
2321 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2322 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2324 if (mid_up > high) {
2325 /* If there's nothing left above us, set high to
2326 * a non-empty entry below us and continue. */
2327 high = mid - (int)flist->sorted[mid]->len32;
2328 if (!F_IS_ACTIVE(flist->sorted[high])) {
2330 high -= (int)flist->sorted[high]->len32;
2331 } while (!F_IS_ACTIVE(flist->sorted[high]));
2332 flist->sorted[mid]->len32 = mid - high;
2337 diff = f_name_cmp(flist->sorted[mid_up], f);
2339 if (protocol_version < 29
2340 && S_ISDIR(flist->sorted[mid_up]->mode)
2341 != S_ISDIR(f->mode))
2354 * Free up any resources a file_struct has allocated
2355 * and clear the file.
2357 void clear_file(struct file_struct *file)
2359 /* The +1 zeros out the first char of the basename. */
2360 memset(file, 0, FILE_STRUCT_LEN + 1);
2361 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2362 * entry. Likewise for len32 in the opposite direction. We assume
2363 * that we're alone for now since flist_find() will adjust the counts
2364 * it runs into that aren't up-to-date. */
2365 file->len32 = F_DEPTH(file) = 1;
2368 /* Allocate a new file list. */
2369 struct file_list *flist_new(int flags, char *msg)
2371 struct file_list *flist;
2373 if (!(flist = new0(struct file_list)))
2376 if (flags & FLIST_TEMP) {
2377 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2378 out_of_memory, POOL_INTERN)))
2381 /* This is a doubly linked list with prev looping back to
2382 * the end of the list, but the last next pointer is NULL. */
2384 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2385 out_of_memory, POOL_INTERN);
2386 if (!flist->file_pool)
2389 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2391 first_flist = cur_flist = flist->prev = flist;
2393 struct file_list *prev = first_flist->prev;
2395 flist->file_pool = first_flist->file_pool;
2397 flist->ndx_start = prev->ndx_start + prev->used + 1;
2398 flist->flist_num = prev->flist_num + 1;
2401 prev->next = first_flist->prev = flist;
2403 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2410 /* Free up all elements in a flist. */
2411 void flist_free(struct file_list *flist)
2414 /* Was FLIST_TEMP dir-list. */
2415 } else if (flist == flist->prev) {
2416 first_flist = cur_flist = NULL;
2420 if (flist == cur_flist)
2421 cur_flist = flist->next;
2422 if (flist == first_flist)
2423 first_flist = first_flist->next;
2425 flist->prev->next = flist->next;
2427 flist->next = first_flist;
2429 flist->next->prev = flist->prev;
2430 file_total -= flist->used;
2434 if (!flist->prev || !flist_cnt)
2435 pool_destroy(flist->file_pool);
2437 pool_free_old(flist->file_pool, flist->pool_boundary);
2439 if (flist->sorted && flist->sorted != flist->files)
2440 free(flist->sorted);
2445 /* This routine ensures we don't have any duplicate names in our file list.
2446 * duplicate names can cause corruption because of the pipelining. */
2447 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2449 char fbuf[MAXPATHLEN];
2454 if (flist->used == 0) {
2460 fsort(flist->sorted, flist->used);
2462 if (!am_sender || inc_recurse) {
2463 for (i = prev_i = 0; i < flist->used; i++) {
2464 if (F_IS_ACTIVE(flist->sorted[i])) {
2469 flist->low = prev_i;
2471 i = prev_i = flist->used - 1;
2475 while (++i < flist->used) {
2477 struct file_struct *file = flist->sorted[i];
2479 if (!F_IS_ACTIVE(file))
2481 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2483 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2484 int save_mode = file->mode;
2485 /* Make sure that this directory doesn't duplicate a
2486 * non-directory earlier in the list. */
2487 flist->high = prev_i;
2488 file->mode = S_IFREG;
2489 j = flist_find(flist, file);
2490 file->mode = save_mode;
2495 /* If one is a dir and the other is not, we want to
2496 * keep the dir because it might have contents in the
2497 * list. Otherwise keep the first one. */
2498 if (S_ISDIR(file->mode)) {
2499 struct file_struct *fp = flist->sorted[j];
2500 if (!S_ISDIR(fp->mode))
2504 file->flags |= FLAG_DUPLICATE;
2505 else { /* Make sure we merge our vital flags. */
2506 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2507 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2517 "removing duplicate name %s from file list (%d)\n",
2518 f_name(file, fbuf), drop + flist->ndx_start);
2520 clear_file(flist->sorted[drop]);
2524 if (flist->low == drop) {
2526 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2535 flist->high = prev_i;
2538 /* We need to strip off the leading slashes for relative
2539 * paths, but this must be done _after_ the sorting phase. */
2540 for (i = flist->low; i <= flist->high; i++) {
2541 struct file_struct *file = flist->sorted[i];
2545 while (*file->dirname == '/')
2547 if (!*file->dirname)
2548 file->dirname = NULL;
2552 if (prune_empty_dirs && !am_sender) {
2553 int j, prev_depth = 0;
2555 prev_i = 0; /* It's OK that this isn't really true. */
2557 for (i = flist->low; i <= flist->high; i++) {
2558 struct file_struct *fp, *file = flist->sorted[i];
2560 /* This temporarily abuses the F_DEPTH() value for a
2561 * directory that is in a chain that might get pruned.
2562 * We restore the old value if it gets a reprieve. */
2563 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2564 /* Dump empty dirs when coming back down. */
2565 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2566 fp = flist->sorted[prev_i];
2567 if (F_DEPTH(fp) >= 0)
2569 prev_i = -F_DEPTH(fp)-1;
2572 prev_depth = F_DEPTH(file);
2573 if (is_excluded(f_name(file, fbuf), 1,
2575 /* Keep dirs through this dir. */
2576 for (j = prev_depth-1; ; j--) {
2577 fp = flist->sorted[prev_i];
2578 if (F_DEPTH(fp) >= 0)
2580 prev_i = -F_DEPTH(fp)-1;
2584 F_DEPTH(file) = -prev_i-1;
2587 /* Keep dirs through this non-dir. */
2588 for (j = prev_depth; ; j--) {
2589 fp = flist->sorted[prev_i];
2590 if (F_DEPTH(fp) >= 0)
2592 prev_i = -F_DEPTH(fp)-1;
2597 /* Dump all remaining empty dirs. */
2599 struct file_struct *fp = flist->sorted[prev_i];
2600 if (F_DEPTH(fp) >= 0)
2602 prev_i = -F_DEPTH(fp)-1;
2606 for (i = flist->low; i <= flist->high; i++) {
2607 if (F_IS_ACTIVE(flist->sorted[i]))
2611 for (i = flist->high; i >= flist->low; i--) {
2612 if (F_IS_ACTIVE(flist->sorted[i]))
2619 static void output_flist(struct file_list *flist)
2621 char uidbuf[16], gidbuf[16], depthbuf[16];
2622 struct file_struct *file;
2623 const char *root, *dir, *slash, *name, *trail;
2624 const char *who = who_am_i();
2627 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2628 who, flist->ndx_start, flist->used, flist->low, flist->high);
2629 for (i = 0; i < flist->used; i++) {
2630 file = flist->files[i];
2631 if ((am_root || am_sender) && uid_ndx) {
2632 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2637 static char parens[] = "(\0)\0\0\0";
2638 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2639 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2640 pp, F_GROUP(file), pp + 2);
2644 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2645 if (F_IS_ACTIVE(file)) {
2646 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2647 if ((dir = file->dirname) == NULL)
2651 name = file->basename;
2652 trail = S_ISDIR(file->mode) ? "/" : "";
2654 root = dir = slash = name = trail = "";
2656 "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
2657 who, i + flist->ndx_start,
2658 root, dir, slash, name, trail,
2659 (int)file->mode, (double)F_LENGTH(file),
2660 uidbuf, gidbuf, file->flags);
2664 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2665 enum fnc_type { t_PATH, t_ITEM };
2667 static int found_prefix;
2669 /* Compare the names of two file_struct entities, similar to how strcmp()
2670 * would do if it were operating on the joined strings.
2672 * Some differences beginning with protocol_version 29: (1) directory names
2673 * are compared with an assumed trailing slash so that they compare in a
2674 * way that would cause them to sort immediately prior to any content they
2675 * may have; (2) a directory of any name compares after a non-directory of
2676 * any name at the same depth; (3) a directory with name "." compares prior
2677 * to anything else. These changes mean that a directory and a non-dir
2678 * with the same name will not compare as equal (protocol_version >= 29).
2680 * The dirname component can be an empty string, but the basename component
2681 * cannot (and never is in the current codebase). The basename component
2682 * may be NULL (for a removed item), in which case it is considered to be
2683 * after any existing item. */
2684 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2687 const uchar *c1, *c2;
2688 enum fnc_state state1, state2;
2689 enum fnc_type type1, type2;
2690 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2692 if (!f1 || !F_IS_ACTIVE(f1)) {
2693 if (!f2 || !F_IS_ACTIVE(f2))
2697 if (!f2 || !F_IS_ACTIVE(f2))
2700 c1 = (uchar*)f1->dirname;
2701 c2 = (uchar*)f2->dirname;
2705 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2706 c1 = (const uchar*)f1->basename;
2707 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2709 state1 = s_TRAILING;
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;
2732 return type1 == t_PATH ? 1 : -1;
2742 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2743 c1 = (const uchar*)f1->basename;
2744 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2746 state1 = s_TRAILING;
2752 state1 = s_TRAILING;
2753 if (type1 == t_PATH) {
2762 if (*c2 && type1 != type2)
2763 return type1 == t_PATH ? 1 : -1;
2772 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2773 c2 = (const uchar*)f2->basename;
2774 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2776 state2 = s_TRAILING;
2782 state2 = s_TRAILING;
2783 if (type2 == t_PATH) {
2796 return type1 == t_PATH ? 1 : -1;
2798 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2803 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2804 * not match if f2's basename is not an exact match of a path element in f1.
2805 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2806 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2810 return found_prefix;
2813 char *f_name_buf(void)
2815 static char names[5][MAXPATHLEN];
2816 static unsigned int n;
2818 n = (n + 1) % (sizeof names / sizeof names[0]);
2823 /* Return a copy of the full filename of a flist entry, using the indicated
2824 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2825 * done because we checked the size when creating the file_struct entry.
2827 char *f_name(const struct file_struct *f, char *fbuf)
2829 if (!f || !F_IS_ACTIVE(f))
2833 fbuf = f_name_buf();
2836 int len = strlen(f->dirname);
2837 memcpy(fbuf, f->dirname, len);
2839 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2841 strlcpy(fbuf, f->basename, MAXPATHLEN);
2846 /* Do a non-recursive scan of the named directory, possibly ignoring all
2847 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2848 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2849 * buffer (the functions we call will append names onto the end, but the old
2850 * dir value will be restored on exit). */
2851 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2853 struct file_list *dirlist;
2854 char dirbuf[MAXPATHLEN];
2855 int save_recurse = recurse;
2856 int save_xfer_dirs = xfer_dirs;
2857 int save_prune_empty_dirs = prune_empty_dirs;
2860 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2861 if (dlen >= MAXPATHLEN)
2866 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2870 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2871 xfer_dirs = save_xfer_dirs;
2872 recurse = save_recurse;
2874 flist_count_offset += dirlist->used;
2876 prune_empty_dirs = 0;
2877 dirlist->sorted = dirlist->files;
2878 flist_sort_and_clean(dirlist, 0);
2879 prune_empty_dirs = save_prune_empty_dirs;
2882 output_flist(dirlist);