2 * Generate and receive file lists.
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2002-2008 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
32 extern int am_generator;
33 extern int inc_recurse;
34 extern int always_checksum;
36 extern int ignore_errors;
37 extern int numeric_ids;
41 extern int filesfrom_fd;
42 extern int one_file_system;
43 extern int copy_dirlinks;
44 extern int keep_dirlinks;
45 extern int preserve_uid;
46 extern int preserve_gid;
47 extern int preserve_acls;
48 extern int preserve_xattrs;
49 extern int preserve_links;
50 extern int preserve_hard_links;
51 extern int preserve_devices;
52 extern int preserve_specials;
56 extern int relative_paths;
57 extern int implied_dirs;
58 extern int file_extra_cnt;
59 extern int ignore_perishable;
60 extern int non_perishable_cnt;
61 extern int prune_empty_dirs;
62 extern int copy_links;
63 extern int copy_unsafe_links;
64 extern int protocol_version;
65 extern int sanitize_paths;
66 extern int munge_symlinks;
67 extern int need_unsorted_flist;
68 extern int output_needs_newline;
69 extern int unsort_ndx;
70 extern struct stats stats;
71 extern char *filesfrom_host;
73 extern char curr_dir[MAXPATHLEN];
75 extern struct chmod_mode_struct *chmod_modes;
77 extern struct filter_list_struct filter_list;
78 extern struct filter_list_struct daemon_filter_list;
81 extern int filesfrom_convert;
82 extern iconv_t ic_send, ic_recv;
85 #define PTR_SIZE (sizeof (struct file_struct *))
89 dev_t filesystem_dev; /* used to implement -x */
91 struct file_list *cur_flist, *first_flist, *dir_flist;
92 int send_dir_ndx = -1, send_dir_depth = -1;
93 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
94 int file_total = 0; /* total of all active items over all file-lists */
95 int flist_eof = 0; /* all the file-lists are now known */
98 #define SLASH_ENDING_NAME 1
101 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
102 * internally, even if this platform does not allow files to have 64-bit inums.
103 * The only exception is if we're on a platform with no 64-bit type at all.
105 * Because we use read_longint() to get these off the wire, if you transfer
106 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
107 * machine with no 64-bit types then you will get an overflow error.
109 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
110 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
111 * be truncated. But it's a kind of silly thing to do anyhow. */
113 /* The tmp_* vars are used as a cache area by make_file() to store data
114 * that the sender doesn't need to remember in its file list. The data
115 * will survive just long enough to be used by send_file_entry(). */
116 static dev_t tmp_rdev;
117 #ifdef SUPPORT_HARD_LINKS
118 static int64 tmp_dev, tmp_ino;
120 static char tmp_sum[MAX_DIGEST_LEN];
122 static char empty_sum[MAX_DIGEST_LEN];
123 static int flist_count_offset; /* for --delete --progress */
124 static int dir_count = 0;
126 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
127 static void output_flist(struct file_list *flist);
129 void init_flist(void)
131 if (DEBUG_GTE(FLIST, 4)) {
132 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
133 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
135 checksum_len = protocol_version < 21 ? 2
136 : protocol_version < 30 ? MD4_DIGEST_LEN
140 static int show_filelist_p(void)
142 return INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
145 static void start_filelist_progress(char *kind)
147 rprintf(FCLIENT, "%s ... ", kind);
148 output_needs_newline = 1;
152 static void emit_filelist_progress(int count)
154 rprintf(FCLIENT, " %d files...\r", count);
157 static void maybe_emit_filelist_progress(int count)
159 if (INFO_GTE(FLIST, 2) && show_filelist_p() && (count % 100) == 0)
160 emit_filelist_progress(count);
163 static void finish_filelist_progress(const struct file_list *flist)
165 if (INFO_GTE(FLIST, 2)) {
166 /* This overwrites the progress line */
167 rprintf(FINFO, "%d file%sto consider\n",
168 flist->used, flist->used == 1 ? " " : "s ");
170 output_needs_newline = 0;
171 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)) {
199 if (INFO_GTE(SYMSAFE, 1)) {
200 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
203 return x_stat(path, stp, NULL);
205 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
206 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
207 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
208 llen - SYMLINK_PREFIX_LEN + 1);
213 return x_stat(path, stp, NULL);
217 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
221 return x_stat(path, stp, NULL);
222 if (x_lstat(path, stp, NULL) < 0)
224 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
226 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
231 return x_stat(path, stp, NULL);
235 static inline int is_daemon_excluded(const char *fname, int is_dir)
237 if (daemon_filter_list.head
238 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
245 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
247 if (daemon_filter_list.head) {
250 while ((slash = strchr(slash+1, '/')) != NULL) {
253 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
262 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
271 /* This function is used to check if a file should be included/excluded
272 * from the list of files based on its name and type etc. The value of
273 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
274 static int is_excluded(const char *fname, int is_dir, int filter_level)
276 #if 0 /* This currently never happens, so avoid a useless compare. */
277 if (filter_level == NO_FILTERS)
280 if (is_daemon_excluded(fname, is_dir))
282 if (filter_level != ALL_FILTERS)
285 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
290 static void send_directory(int f, struct file_list *flist,
291 char *fbuf, int len, int flags);
293 static const char *pathname, *orig_dir;
294 static int pathname_len;
296 /* Make sure flist can hold at least flist->used + extra entries. */
297 static void flist_expand(struct file_list *flist, int extra)
299 struct file_struct **new_ptr;
301 if (flist->used + extra <= flist->malloced)
304 if (flist->malloced < FLIST_START)
305 flist->malloced = FLIST_START;
306 else if (flist->malloced >= FLIST_LINEAR)
307 flist->malloced += FLIST_LINEAR;
309 flist->malloced *= 2;
311 /* In case count jumped or we are starting the list
312 * with a known size just set it. */
313 if (flist->malloced < flist->used + extra)
314 flist->malloced = flist->used + extra;
316 new_ptr = realloc_array(flist->files, struct file_struct *,
319 if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
320 rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
322 big_num(sizeof flist->files[0] * flist->malloced, 0),
323 (new_ptr == flist->files) ? " not" : "");
326 flist->files = new_ptr;
329 out_of_memory("flist_expand");
332 static void flist_done_allocating(struct file_list *flist)
334 void *ptr = pool_boundary(flist->file_pool, 8*1024);
335 if (flist->pool_boundary == ptr)
336 flist->pool_boundary = NULL; /* list didn't use any pool memory */
338 flist->pool_boundary = ptr;
341 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
342 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
343 * with dir == NULL taken to be the starting directory, and dirlen < 0
344 * indicating that strdup(dir) should be called and then the -dirlen length
345 * value checked to ensure that it is not daemon-excluded. */
346 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
349 char *cpy = strdup(dir);
351 change_dir(orig_dir, CD_SKIP_CHDIR);
352 if (path_is_daemon_excluded(cpy, 0))
358 if (pathname == F_PATHNAME(file))
360 dir = F_PATHNAME(file);
362 dirlen = strlen(dir);
363 } else if (pathname == dir)
365 if (dir && *dir != '/')
366 change_dir(orig_dir, CD_SKIP_CHDIR);
370 pathname_len = dirlen;
375 if (!change_dir(dir, CD_NORMAL)) {
377 io_error |= IOERR_GENERAL;
378 rsyserr(FERROR, errno, "change_dir %s failed", full_fname(dir));
380 change_dir(orig_dir, CD_NORMAL);
389 static void send_file_entry(int f, const char *fname, struct file_struct *file, int ndx, int first_ndx)
391 static time_t modtime;
393 #ifdef SUPPORT_HARD_LINKS
397 static uint32 rdev_major;
400 static const char *user_name, *group_name;
401 static char lastname[MAXPATHLEN];
402 #ifdef SUPPORT_HARD_LINKS
403 int first_hlink_ndx = -1;
408 /* Initialize starting value of xflags. */
409 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
411 if (file->flags & FLAG_CONTENT_DIR)
412 xflags = file->flags & FLAG_TOP_DIR;
413 else if (file->flags & FLAG_IMPLIED_DIR)
414 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
416 xflags = XMIT_NO_CONTENT_DIR;
418 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
420 if (file->mode == mode)
421 xflags |= XMIT_SAME_MODE;
425 if ((preserve_devices && IS_DEVICE(mode))
426 || (preserve_specials && IS_SPECIAL(mode))) {
427 if (protocol_version < 28) {
428 if (tmp_rdev == rdev)
429 xflags |= XMIT_SAME_RDEV_pre28;
434 if ((uint32)major(rdev) == rdev_major)
435 xflags |= XMIT_SAME_RDEV_MAJOR;
437 rdev_major = major(rdev);
438 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
439 xflags |= XMIT_RDEV_MINOR_8_pre30;
441 } else if (protocol_version < 28)
442 rdev = MAKEDEV(0, 0);
443 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
444 xflags |= XMIT_SAME_UID;
448 user_name = add_uid(uid);
449 if (inc_recurse && user_name)
450 xflags |= XMIT_USER_NAME_FOLLOWS;
453 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
454 xflags |= XMIT_SAME_GID;
458 group_name = add_gid(gid);
459 if (inc_recurse && group_name)
460 xflags |= XMIT_GROUP_NAME_FOLLOWS;
463 if (file->modtime == modtime)
464 xflags |= XMIT_SAME_TIME;
466 modtime = file->modtime;
468 #ifdef SUPPORT_HARD_LINKS
470 if (protocol_version >= 30) {
471 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
472 first_hlink_ndx = (int32)(long)np->data - 1;
473 if (first_hlink_ndx < 0) {
474 np->data = (void*)(long)(first_ndx + ndx + 1);
475 xflags |= XMIT_HLINK_FIRST;
477 if (DEBUG_GTE(HLINK, 1)) {
478 if (first_hlink_ndx >= 0) {
479 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
480 who_am_i(), first_ndx + ndx, first_hlink_ndx,
481 first_hlink_ndx >= first_ndx ? "" : "un");
482 } else if (DEBUG_GTE(HLINK, 3)) {
483 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
484 who_am_i(), first_ndx + ndx,
485 big_num(tmp_dev, 0), big_num(tmp_ino, 0));
489 if (tmp_dev == dev) {
490 if (protocol_version >= 28)
491 xflags |= XMIT_SAME_DEV_pre30;
495 xflags |= XMIT_HLINKED;
500 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
502 l2 = strlen(fname+l1);
505 xflags |= XMIT_SAME_NAME;
507 xflags |= XMIT_LONG_NAME;
509 /* We must make sure we don't send a zero flag byte or the
510 * other end will terminate the flist transfer. Note that
511 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
512 * it's harmless way to add a bit to the first flag byte. */
513 if (protocol_version >= 28) {
514 if (!xflags && !S_ISDIR(mode))
515 xflags |= XMIT_TOP_DIR;
516 if ((xflags & 0xFF00) || !xflags) {
517 xflags |= XMIT_EXTENDED_FLAGS;
518 write_shortint(f, xflags);
520 write_byte(f, xflags);
522 if (!(xflags & 0xFF))
523 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
524 write_byte(f, xflags);
526 if (xflags & XMIT_SAME_NAME)
528 if (xflags & XMIT_LONG_NAME)
529 write_varint30(f, l2);
532 write_buf(f, fname + l1, l2);
534 #ifdef SUPPORT_HARD_LINKS
535 if (first_hlink_ndx >= 0) {
536 write_varint(f, first_hlink_ndx);
537 if (first_hlink_ndx >= first_ndx)
542 write_varlong30(f, F_LENGTH(file), 3);
543 if (!(xflags & XMIT_SAME_TIME)) {
544 if (protocol_version >= 30)
545 write_varlong(f, modtime, 4);
547 write_int(f, modtime);
549 if (!(xflags & XMIT_SAME_MODE))
550 write_int(f, to_wire_mode(mode));
551 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
552 if (protocol_version < 30)
555 write_varint(f, uid);
556 if (xflags & XMIT_USER_NAME_FOLLOWS) {
557 int len = strlen(user_name);
559 write_buf(f, user_name, len);
563 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
564 if (protocol_version < 30)
567 write_varint(f, gid);
568 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
569 int len = strlen(group_name);
571 write_buf(f, group_name, len);
575 if ((preserve_devices && IS_DEVICE(mode))
576 || (preserve_specials && IS_SPECIAL(mode))) {
577 if (protocol_version < 28) {
578 if (!(xflags & XMIT_SAME_RDEV_pre28))
579 write_int(f, (int)rdev);
581 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
582 write_varint30(f, major(rdev));
583 if (protocol_version >= 30)
584 write_varint(f, minor(rdev));
585 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
586 write_byte(f, minor(rdev));
588 write_int(f, minor(rdev));
593 if (preserve_links && S_ISLNK(mode)) {
594 const char *sl = F_SYMLINK(file);
595 int len = strlen(sl);
596 write_varint30(f, len);
597 write_buf(f, sl, len);
601 #ifdef SUPPORT_HARD_LINKS
602 if (tmp_dev != 0 && protocol_version < 30) {
603 if (protocol_version < 26) {
604 /* 32-bit dev_t and ino_t */
605 write_int(f, (int32)dev);
606 write_int(f, (int32)tmp_ino);
608 /* 64-bit dev_t and ino_t */
609 if (!(xflags & XMIT_SAME_DEV_pre30))
610 write_longint(f, dev);
611 write_longint(f, tmp_ino);
616 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
621 /* Prior to 28, we sent a useless set of nulls. */
624 write_buf(f, sum, checksum_len);
627 #ifdef SUPPORT_HARD_LINKS
630 strlcpy(lastname, fname, MAXPATHLEN);
632 if (S_ISREG(mode) || S_ISLNK(mode))
633 stats.total_size += F_LENGTH(file);
636 static struct file_struct *recv_file_entry(struct file_list *flist,
639 static int64 modtime;
641 #ifdef SUPPORT_HARD_LINKS
645 static uint32 rdev_major;
648 static uint16 gid_flags;
649 static char lastname[MAXPATHLEN], *lastdir;
650 static int lastdir_depth, lastdir_len = -1;
651 static unsigned int del_hier_name_len = 0;
652 static int in_del_hier = 0;
653 char thisname[MAXPATHLEN];
654 unsigned int l1 = 0, l2 = 0;
655 int alloc_len, basename_len, linkname_len;
656 int extra_len = file_extra_cnt * EXTRA_LEN;
657 int first_hlink_ndx = -1;
659 const char *basename;
660 struct file_struct *file;
664 if (xflags & XMIT_SAME_NAME)
667 if (xflags & XMIT_LONG_NAME)
668 l2 = read_varint30(f);
672 if (l2 >= MAXPATHLEN - l1) {
674 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
675 xflags, l1, l2, lastname, who_am_i());
676 overflow_exit("recv_file_entry");
679 strlcpy(thisname, lastname, l1 + 1);
680 read_sbuf(f, &thisname[l1], l2);
681 thisname[l1 + l2] = 0;
683 /* Abuse basename_len for a moment... */
684 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
687 if (ic_recv != (iconv_t)-1) {
690 INIT_CONST_XBUF(outbuf, thisname);
691 INIT_XBUF(inbuf, lastname, basename_len, -1);
693 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
694 io_error |= IOERR_GENERAL;
696 "[%s] cannot convert filename: %s (%s)\n",
697 who_am_i(), lastname, strerror(errno));
700 outbuf.buf[outbuf.len] = '\0';
705 clean_fname(thisname, 0);
708 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
710 if ((basename = strrchr(thisname, '/')) != NULL) {
711 int len = basename++ - thisname;
712 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
713 lastdir = new_array(char, len + 1);
714 memcpy(lastdir, thisname, len);
717 lastdir_depth = count_dir_elements(lastdir);
721 basename_len = strlen(basename) + 1; /* count the '\0' */
723 #ifdef SUPPORT_HARD_LINKS
724 if (protocol_version >= 30
725 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
726 first_hlink_ndx = read_varint(f);
727 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
729 "hard-link reference out of range: %d (%d)\n",
730 first_hlink_ndx, flist->ndx_start + flist->used);
731 exit_cleanup(RERR_PROTOCOL);
733 if (DEBUG_GTE(HLINK, 1)) {
734 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
735 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
736 first_hlink_ndx >= flist->ndx_start ? "" : "un");
738 if (first_hlink_ndx >= flist->ndx_start) {
739 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
740 file_length = F_LENGTH(first);
741 modtime = first->modtime;
744 uid = F_OWNER(first);
746 gid = F_GROUP(first);
747 if ((preserve_devices && IS_DEVICE(mode))
748 || (preserve_specials && IS_SPECIAL(mode))) {
749 uint32 *devp = F_RDEV_P(first);
750 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
751 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
753 if (preserve_links && S_ISLNK(mode))
754 linkname_len = strlen(F_SYMLINK(first)) + 1;
762 file_length = read_varlong30(f, 3);
763 if (!(xflags & XMIT_SAME_TIME)) {
764 if (protocol_version >= 30) {
765 modtime = read_varlong(f, 4);
766 #if SIZEOF_TIME_T < SIZEOF_INT64
767 if (!am_generator && (int64)(time_t)modtime != modtime) {
769 "Time value of %s truncated on receiver.\n",
774 modtime = read_int(f);
776 if (!(xflags & XMIT_SAME_MODE))
777 mode = from_wire_mode(read_int(f));
779 if (chmod_modes && !S_ISLNK(mode))
780 mode = tweak_mode(mode, chmod_modes);
782 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
783 if (protocol_version < 30)
784 uid = (uid_t)read_int(f);
786 uid = (uid_t)read_varint(f);
787 if (xflags & XMIT_USER_NAME_FOLLOWS)
788 uid = recv_user_name(f, uid);
789 else if (inc_recurse && am_root && !numeric_ids)
790 uid = match_uid(uid);
793 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
794 if (protocol_version < 30)
795 gid = (gid_t)read_int(f);
797 gid = (gid_t)read_varint(f);
799 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
800 gid = recv_group_name(f, gid, &gid_flags);
801 else if (inc_recurse && (!am_root || !numeric_ids))
802 gid = match_gid(gid, &gid_flags);
806 if ((preserve_devices && IS_DEVICE(mode))
807 || (preserve_specials && IS_SPECIAL(mode))) {
808 if (protocol_version < 28) {
809 if (!(xflags & XMIT_SAME_RDEV_pre28))
810 rdev = (dev_t)read_int(f);
813 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
814 rdev_major = read_varint30(f);
815 if (protocol_version >= 30)
816 rdev_minor = read_varint(f);
817 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
818 rdev_minor = read_byte(f);
820 rdev_minor = read_int(f);
821 rdev = MAKEDEV(rdev_major, rdev_minor);
823 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
825 } else if (protocol_version < 28)
826 rdev = MAKEDEV(0, 0);
829 if (preserve_links && S_ISLNK(mode)) {
830 linkname_len = read_varint30(f) + 1; /* count the '\0' */
831 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
832 rprintf(FERROR, "overflow: linkname_len=%d\n",
834 overflow_exit("recv_file_entry");
837 linkname_len += SYMLINK_PREFIX_LEN;
843 #ifdef SUPPORT_HARD_LINKS
845 if (preserve_hard_links) {
846 if (protocol_version < 28 && S_ISREG(mode))
847 xflags |= XMIT_HLINKED;
848 if (xflags & XMIT_HLINKED)
849 extra_len += (inc_recurse+1) * EXTRA_LEN;
854 /* Directories need an extra int32 for the default ACL. */
855 if (preserve_acls && S_ISDIR(mode))
856 extra_len += EXTRA_LEN;
859 if (always_checksum && S_ISREG(mode))
860 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
862 #if SIZEOF_INT64 >= 8
863 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
864 extra_len += EXTRA_LEN;
866 if (file_length < 0) {
867 rprintf(FERROR, "Offset underflow: file-length is negative\n");
868 exit_cleanup(RERR_UNSUPPORTED);
871 if (inc_recurse && S_ISDIR(mode)) {
872 if (one_file_system) {
873 /* Room to save the dir's device for -x */
874 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
876 pool = dir_flist->file_pool;
878 pool = flist->file_pool;
880 #if EXTRA_ROUNDING > 0
881 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
882 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
885 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
887 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
889 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
891 file = (struct file_struct *)bp;
892 bp += FILE_STRUCT_LEN;
894 memcpy(bp, basename, basename_len);
896 #ifdef SUPPORT_HARD_LINKS
897 if (xflags & XMIT_HLINKED)
898 file->flags |= FLAG_HLINKED;
900 file->modtime = (time_t)modtime;
901 file->len32 = (uint32)file_length;
902 #if SIZEOF_INT64 >= 8
903 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
904 #if SIZEOF_CAPITAL_OFF_T < 8
905 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
906 exit_cleanup(RERR_UNSUPPORTED);
908 file->flags |= FLAG_LENGTH64;
909 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
918 file->flags |= gid_flags;
921 F_NDX(file) = flist->used + flist->ndx_start;
923 if (basename != thisname) {
924 file->dirname = lastdir;
925 F_DEPTH(file) = lastdir_depth + 1;
930 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
932 if (protocol_version >= 30) {
933 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
934 if (xflags & XMIT_TOP_DIR)
935 file->flags |= FLAG_TOP_DIR;
936 file->flags |= FLAG_CONTENT_DIR;
937 } else if (xflags & XMIT_TOP_DIR)
938 file->flags |= FLAG_IMPLIED_DIR;
939 } else if (xflags & XMIT_TOP_DIR) {
940 in_del_hier = recurse;
941 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
942 if (relative_paths && del_hier_name_len > 2
943 && lastname[del_hier_name_len-1] == '.'
944 && lastname[del_hier_name_len-2] == '/')
945 del_hier_name_len -= 2;
946 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
947 } else if (in_del_hier) {
948 if (!relative_paths || !del_hier_name_len
949 || (l1 >= del_hier_name_len
950 && lastname[del_hier_name_len] == '/'))
951 file->flags |= FLAG_CONTENT_DIR;
957 if ((preserve_devices && IS_DEVICE(mode))
958 || (preserve_specials && IS_SPECIAL(mode))) {
959 uint32 *devp = F_RDEV_P(file);
960 DEV_MAJOR(devp) = major(rdev);
961 DEV_MINOR(devp) = minor(rdev);
967 if (first_hlink_ndx >= flist->ndx_start) {
968 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
969 memcpy(bp, F_SYMLINK(first), linkname_len);
970 } else if (munge_symlinks) {
971 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
972 bp += SYMLINK_PREFIX_LEN;
973 linkname_len -= SYMLINK_PREFIX_LEN;
974 read_sbuf(f, bp, linkname_len - 1);
976 read_sbuf(f, bp, linkname_len - 1);
978 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
983 #ifdef SUPPORT_HARD_LINKS
984 if (preserve_hard_links && xflags & XMIT_HLINKED) {
985 if (protocol_version >= 30) {
986 if (xflags & XMIT_HLINK_FIRST) {
987 F_HL_GNUM(file) = flist->ndx_start + flist->used;
989 F_HL_GNUM(file) = first_hlink_ndx;
991 static int32 cnt = 0;
992 struct ht_int64_node *np;
995 if (protocol_version < 26) {
999 if (!(xflags & XMIT_SAME_DEV_pre30))
1000 dev = read_longint(f);
1001 ino = read_longint(f);
1003 np = idev_find(dev, ino);
1004 ndx = (int32)(long)np->data - 1;
1007 np->data = (void*)(long)cnt;
1009 F_HL_GNUM(file) = ndx;
1014 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1018 /* Prior to 28, we get a useless set of nulls. */
1021 if (first_hlink_ndx >= flist->ndx_start) {
1022 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1023 memcpy(bp, F_SUM(first), checksum_len);
1025 read_buf(f, bp, checksum_len);
1029 if (preserve_acls && !S_ISLNK(mode))
1030 receive_acl(file, f);
1032 #ifdef SUPPORT_XATTRS
1033 if (preserve_xattrs)
1034 receive_xattr(file, f );
1037 if (S_ISREG(mode) || S_ISLNK(mode))
1038 stats.total_size += file_length;
1043 /* Create a file_struct for a named file by reading its stat() information
1044 * and performing extensive checks against global options.
1046 * Returns a pointer to the new file struct, or NULL if there was an error
1047 * or this file should be excluded.
1049 * Note: Any error (here or in send_file_name) that results in the omission of
1050 * an existent source file from the file list should set
1051 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1052 * destination if --delete is on. */
1053 struct file_struct *make_file(const char *fname, struct file_list *flist,
1054 STRUCT_STAT *stp, int flags, int filter_level)
1056 static char *lastdir;
1057 static int lastdir_len = -1;
1058 struct file_struct *file;
1059 char thisname[MAXPATHLEN];
1060 char linkname[MAXPATHLEN];
1061 int alloc_len, basename_len, linkname_len;
1062 int extra_len = file_extra_cnt * EXTRA_LEN;
1063 const char *basename;
1068 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1069 io_error |= IOERR_GENERAL;
1070 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1073 clean_fname(thisname, 0);
1075 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1077 if (stp && S_ISDIR(stp->st_mode)) {
1078 st = *stp; /* Needed for "symlink/." with --relative. */
1079 *linkname = '\0'; /* make IBM code checker happy */
1080 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1081 int save_errno = errno;
1082 /* See if file is excluded before reporting an error. */
1083 if (filter_level != NO_FILTERS
1084 && (is_excluded(thisname, 0, filter_level)
1085 || is_excluded(thisname, 1, filter_level))) {
1086 if (ignore_perishable && save_errno != ENOENT)
1087 non_perishable_cnt++;
1090 if (save_errno == ENOENT) {
1091 #ifdef SUPPORT_LINKS
1092 /* When our options tell us to follow a symlink that
1093 * points nowhere, tell the user about the symlink
1094 * instead of giving a "vanished" message. We only
1095 * dereference a symlink if one of the --copy*links
1096 * options was specified, so there's no need for the
1097 * extra lstat() if one of these options isn't on. */
1098 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1099 && x_lstat(thisname, &st, NULL) == 0
1100 && S_ISLNK(st.st_mode)) {
1101 io_error |= IOERR_GENERAL;
1102 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1103 full_fname(thisname));
1107 enum logcode c = am_daemon && protocol_version < 28
1108 ? FERROR : FWARNING;
1109 io_error |= IOERR_VANISHED;
1110 rprintf(c, "file has vanished: %s\n",
1111 full_fname(thisname));
1114 io_error |= IOERR_GENERAL;
1115 rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
1116 full_fname(thisname));
1121 if (filter_level == NO_FILTERS)
1124 if (S_ISDIR(st.st_mode)) {
1126 rprintf(FINFO, "skipping directory %s\n", thisname);
1129 /* -x only affects dirs because we need to avoid recursing
1130 * into a mount-point directory, not to avoid copying a
1131 * symlinked file if -L (or similar) was specified. */
1132 if (one_file_system && st.st_dev != filesystem_dev
1133 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1134 if (one_file_system > 1) {
1135 if (INFO_GTE(MOUNT, 1)) {
1137 "[%s] skipping mount-point dir %s\n",
1138 who_am_i(), thisname);
1142 flags |= FLAG_MOUNT_DIR;
1143 flags &= ~FLAG_CONTENT_DIR;
1146 flags &= ~FLAG_CONTENT_DIR;
1148 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1149 if (ignore_perishable)
1150 non_perishable_cnt++;
1154 if (lp_ignore_nonreadable(module_id)) {
1155 #ifdef SUPPORT_LINKS
1156 if (!S_ISLNK(st.st_mode))
1158 if (access(thisname, R_OK) != 0)
1164 /* Only divert a directory in the main transfer. */
1166 if (flist->prev && S_ISDIR(st.st_mode)
1167 && flags & FLAG_DIVERT_DIRS) {
1168 /* Room for parent/sibling/next-child info. */
1169 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1171 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1172 pool = dir_flist->file_pool;
1174 pool = flist->file_pool;
1177 /* Directories need an extra int32 for the default ACL. */
1178 if (preserve_acls && S_ISDIR(st.st_mode))
1179 extra_len += EXTRA_LEN;
1184 if (DEBUG_GTE(FLIST, 2)) {
1185 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1186 who_am_i(), thisname, filter_level);
1189 if ((basename = strrchr(thisname, '/')) != NULL) {
1190 int len = basename++ - thisname;
1191 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1192 lastdir = new_array(char, len + 1);
1193 memcpy(lastdir, thisname, len);
1194 lastdir[len] = '\0';
1198 basename = thisname;
1199 basename_len = strlen(basename) + 1; /* count the '\0' */
1201 #ifdef SUPPORT_LINKS
1202 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1207 #if SIZEOF_CAPITAL_OFF_T >= 8
1208 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1209 extra_len += EXTRA_LEN;
1212 #if EXTRA_ROUNDING > 0
1213 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1214 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1217 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1220 bp = pool_alloc(pool, alloc_len, "make_file");
1222 if (!(bp = new_array(char, alloc_len)))
1223 out_of_memory("make_file");
1226 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1228 file = (struct file_struct *)bp;
1229 bp += FILE_STRUCT_LEN;
1231 memcpy(bp, basename, basename_len);
1233 #ifdef SUPPORT_HARD_LINKS
1234 if (preserve_hard_links && flist && flist->prev) {
1235 if (protocol_version >= 28
1236 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1237 : S_ISREG(st.st_mode)) {
1238 tmp_dev = st.st_dev;
1239 tmp_ino = st.st_ino;
1245 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1246 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1247 tmp_rdev = st.st_rdev;
1252 file->flags = flags;
1253 file->modtime = st.st_mtime;
1254 file->len32 = (uint32)st.st_size;
1255 #if SIZEOF_CAPITAL_OFF_T >= 8
1256 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1257 file->flags |= FLAG_LENGTH64;
1258 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1261 file->mode = st.st_mode;
1262 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1263 F_OWNER(file) = st.st_uid;
1264 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1265 F_GROUP(file) = st.st_gid;
1267 if (basename != thisname)
1268 file->dirname = lastdir;
1270 #ifdef SUPPORT_LINKS
1272 memcpy(bp + basename_len, linkname, linkname_len);
1275 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1276 file_checksum(thisname, tmp_sum, st.st_size);
1279 F_PATHNAME(file) = pathname;
1281 F_DEPTH(file) = extra_len / EXTRA_LEN;
1283 /* This code is only used by the receiver when it is building
1284 * a list of files for a delete pass. */
1285 if (keep_dirlinks && linkname_len && flist) {
1287 int save_mode = file->mode;
1288 file->mode = S_IFDIR; /* Find a directory with our name. */
1289 if (flist_find(dir_flist, file) >= 0
1290 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1291 file->modtime = st2.st_mtime;
1293 file->mode = st2.st_mode;
1295 F_OWNER(file) = st2.st_uid;
1297 F_GROUP(file) = st2.st_gid;
1299 file->mode = save_mode;
1302 if (basename_len == 0+1) {
1309 F_NDX(file) = dir_count;
1314 /* Only called for temporary file_struct entries created by make_file(). */
1315 void unmake_file(struct file_struct *file)
1317 free(REQ_EXTRA(file, F_DEPTH(file)));
1320 static struct file_struct *send_file_name(int f, struct file_list *flist,
1321 const char *fname, STRUCT_STAT *stp,
1322 int flags, int filter_level)
1324 struct file_struct *file;
1326 file = make_file(fname, flist, stp, flags, filter_level);
1330 if (chmod_modes && !S_ISLNK(file->mode))
1331 file->mode = tweak_mode(file->mode, chmod_modes);
1334 char fbuf[MAXPATHLEN];
1335 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1340 if (ic_send != (iconv_t)-1) {
1343 INIT_CONST_XBUF(outbuf, fbuf);
1345 if (file->dirname) {
1346 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1347 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1348 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1351 outbuf.buf[outbuf.len++] = '/';
1354 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1355 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1357 io_error |= IOERR_GENERAL;
1359 "[%s] cannot convert filename: %s (%s)\n",
1360 who_am_i(), f_name(file, fbuf), strerror(errno));
1363 outbuf.buf[outbuf.len] = '\0';
1369 if (preserve_acls && !S_ISLNK(file->mode)) {
1370 sx.st.st_mode = file->mode;
1371 sx.acc_acl = sx.def_acl = NULL;
1372 if (get_acl(fname, &sx) < 0) {
1373 io_error |= IOERR_GENERAL;
1378 #ifdef SUPPORT_XATTRS
1379 if (preserve_xattrs) {
1381 if (get_xattr(fname, &sx) < 0) {
1382 io_error |= IOERR_GENERAL;
1388 send_file_entry(f, fbuf, file, flist->used, flist->ndx_start);
1391 if (preserve_acls && !S_ISLNK(file->mode)) {
1396 #ifdef SUPPORT_XATTRS
1397 if (preserve_xattrs) {
1398 F_XATTR(file) = send_xattr(&sx, f);
1404 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1406 flist_expand(flist, 1);
1407 flist->files[flist->used++] = file;
1412 static void send_if_directory(int f, struct file_list *flist,
1413 struct file_struct *file,
1414 char *fbuf, unsigned int ol,
1417 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1419 if (S_ISDIR(file->mode)
1420 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1422 unsigned int len = strlen(fbuf);
1423 if (len > 1 && fbuf[len-1] == '/')
1425 if (len >= MAXPATHLEN - 1) {
1426 io_error |= IOERR_GENERAL;
1427 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1431 save_filters = push_local_filters(fbuf, len);
1432 send_directory(f, flist, fbuf, len, flags);
1433 pop_local_filters(save_filters);
1440 static int file_compare(const void *file1, const void *file2)
1442 return f_name_cmp(*(struct file_struct **)file1,
1443 *(struct file_struct **)file2);
1446 /* The guts of a merge-sort algorithm. This was derived from the glibc
1447 * version, but I (Wayne) changed the merge code to do less copying and
1448 * to require only half the amount of temporary memory. */
1449 static void fsort_tmp(struct file_struct **fp, size_t num,
1450 struct file_struct **tmp)
1452 struct file_struct **f1, **f2, **t;
1461 fsort_tmp(f1, n1, tmp);
1463 fsort_tmp(f2, n2, tmp);
1465 while (f_name_cmp(*f1, *f2) <= 0) {
1472 memcpy(t, f1, n1 * PTR_SIZE);
1474 *f1++ = *f2++, n2--;
1476 while (n1 > 0 && n2 > 0) {
1477 if (f_name_cmp(*t, *f2) <= 0)
1480 *f1++ = *f2++, n2--;
1484 memcpy(f1, t, n1 * PTR_SIZE);
1487 /* This file-struct sorting routine makes sure that any identical names in
1488 * the file list stay in the same order as they were in the original list.
1489 * This is particularly vital in inc_recurse mode where we expect a sort
1490 * on the flist to match the exact order of a sort on the dir_flist. */
1491 static void fsort(struct file_struct **fp, size_t num)
1497 qsort(fp, num, PTR_SIZE, file_compare);
1499 struct file_struct **tmp = new_array(struct file_struct *,
1501 fsort_tmp(fp, num, tmp);
1506 /* We take an entire set of sibling dirs from the sorted flist and link them
1507 * into the tree, setting the appropriate parent/child/sibling pointers. */
1508 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1513 int32 *parent_dp = parent_ndx < 0 ? NULL
1514 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1516 flist_expand(dir_flist, dir_cnt);
1517 dir_flist->sorted = dir_flist->files;
1519 for (i = 0; dir_cnt; i++) {
1520 struct file_struct *file = from_flist->sorted[i];
1522 if (!S_ISDIR(file->mode))
1525 dir_flist->files[dir_flist->used++] = file;
1528 if (file->basename[0] == '.' && file->basename[1] == '\0')
1532 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1534 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1536 send_dir_ndx = dir_flist->used - 1;
1538 dp = F_DIR_NODE_P(file);
1539 DIR_PARENT(dp) = parent_ndx;
1540 DIR_FIRST_CHILD(dp) = -1;
1543 DIR_NEXT_SIBLING(dp) = -1;
1546 /* This function is normally called by the sender, but the receiving side also
1547 * calls it from get_dirlist() with f set to -1 so that we just construct the
1548 * file list in memory without sending it over the wire. Also, get_dirlist()
1549 * might call this with f set to -2, which also indicates that local filter
1550 * rules should be ignored. */
1551 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1558 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1559 int start = flist->used;
1560 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1562 assert(flist != NULL);
1564 if (!(d = opendir(fbuf))) {
1565 io_error |= IOERR_GENERAL;
1566 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1571 if (len != 1 || *fbuf != '/')
1574 remainder = MAXPATHLEN - (p - fbuf);
1576 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1577 char *dname = d_name(di);
1578 if (dname[0] == '.' && (dname[1] == '\0'
1579 || (dname[1] == '.' && dname[2] == '\0')))
1581 if (strlcpy(p, dname, remainder) >= remainder) {
1582 io_error |= IOERR_GENERAL;
1584 "cannot send long-named file %s\n",
1588 if (dname[0] == '\0') {
1589 io_error |= IOERR_GENERAL;
1591 "cannot send file with empty name in %s\n",
1596 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1602 io_error |= IOERR_GENERAL;
1603 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1608 if (f >= 0 && recurse && !divert_dirs) {
1609 int i, end = flist->used - 1;
1610 /* send_if_directory() bumps flist->used, so use "end". */
1611 for (i = start; i <= end; i++)
1612 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1616 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1617 char *start, char *limit, int flags, char name_type)
1619 static char lastpath[MAXPATHLEN] = "";
1620 static int lastpath_len = 0;
1621 static struct file_struct *lastpath_struct = NULL;
1622 struct file_struct *file;
1623 item_list *relname_list;
1624 relnamecache **rnpp;
1625 int len, need_new_dir, depth = 0;
1626 struct filter_list_struct save_filter_list = filter_list;
1628 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1629 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1632 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1633 && lastpath_len == limit - fname
1634 && strncmp(lastpath, fname, lastpath_len) == 0)
1639 char *tp = fname, *lp = lastpath;
1640 /* Skip any initial directories in our path that we
1641 * have in common with lastpath. */
1642 assert(start == fname);
1643 for ( ; ; tp++, lp++) {
1645 if (*lp == '/' || *lp == '\0')
1660 int save_copy_links = copy_links;
1661 int save_xfer_dirs = xfer_dirs;
1664 copy_links = xfer_dirs = 1;
1668 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1670 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1672 if (!inc_recurse && file && S_ISDIR(file->mode))
1673 change_local_filter_dir(fname, strlen(fname), depth);
1677 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1679 if (file && !S_ISDIR(file->mode))
1681 lastpath_struct = file;
1682 } else if (file && S_ISDIR(file->mode))
1683 change_local_filter_dir(fname, strlen(fname), ++depth);
1685 strlcpy(lastpath, fname, sizeof lastpath);
1686 lastpath_len = limit - fname;
1690 copy_links = save_copy_links;
1691 xfer_dirs = save_xfer_dirs;
1697 if (!lastpath_struct)
1698 goto done; /* dir must have vanished */
1700 len = strlen(limit+1);
1701 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1702 if (!relname_list) {
1703 if (!(relname_list = new0(item_list)))
1704 out_of_memory("send_implied_dirs");
1705 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1707 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1708 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1709 out_of_memory("send_implied_dirs");
1710 (*rnpp)->name_type = name_type;
1711 strlcpy((*rnpp)->fname, limit+1, len + 1);
1714 filter_list = save_filter_list;
1717 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1719 char fbuf[MAXPATHLEN];
1720 item_list *relname_list;
1721 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1725 dlen = strlen(fbuf);
1727 if (!change_pathname(file, NULL, 0))
1728 exit_cleanup(RERR_FILESELECT);
1730 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1732 if (file->flags & FLAG_CONTENT_DIR) {
1733 if (one_file_system) {
1735 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1736 io_error |= IOERR_GENERAL;
1737 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1741 filesystem_dev = st.st_dev;
1743 send_directory(f, flist, fbuf, dlen, flags);
1746 if (!relative_paths)
1749 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1753 for (j = 0; j < relname_list->count; j++) {
1755 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1756 char name_type = rnp->name_type;
1759 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1761 if (len >= (int)sizeof fbuf)
1762 continue; /* Impossible... */
1764 slash = strchr(fbuf+dlen+1, '/');
1766 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1770 if (name_type != NORMAL_NAME) {
1772 if (link_stat(fbuf, &st, 1) != 0) {
1773 io_error |= IOERR_GENERAL;
1774 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1778 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1780 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1786 void send_extra_file_list(int f, int at_least)
1788 struct file_list *flist;
1791 int old_cnt, save_io_error = io_error;
1796 /* Keep sending data until we have the requested number of
1797 * files in the upcoming file-lists. */
1798 old_cnt = cur_flist->used;
1799 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1800 old_cnt += flist->used;
1801 while (file_total - old_cnt < at_least) {
1802 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1803 int dir_ndx, dstart = dir_count;
1804 const char *pathname = F_PATHNAME(file);
1807 flist = flist_new(0, "send_extra_file_list");
1808 start_write = stats.total_written;
1811 dir_ndx = F_NDX(file);
1813 dir_ndx = send_dir_ndx;
1814 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1815 flist->parent_ndx = dir_ndx;
1817 send1extra(f, file, flist);
1818 prev_flags = file->flags;
1819 dp = F_DIR_NODE_P(file);
1821 /* If there are any duplicate directory names that follow, we
1822 * send all the dirs together in one file-list. The dir_flist
1823 * tree links all the child subdirs onto the last dup dir. */
1824 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1825 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1826 send_dir_ndx = dir_ndx;
1827 file = dir_flist->sorted[dir_ndx];
1828 /* Try to avoid some duplicate scanning of identical dirs. */
1829 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1830 file->flags &= ~FLAG_CONTENT_DIR;
1831 send1extra(f, file, flist);
1832 prev_flags = file->flags;
1833 dp = F_DIR_NODE_P(file);
1838 if (need_unsorted_flist) {
1839 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1840 out_of_memory("send_extra_file_list");
1841 memcpy(flist->sorted, flist->files,
1842 flist->used * sizeof (struct file_struct*));
1844 flist->sorted = flist->files;
1846 flist_sort_and_clean(flist, 0);
1848 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1849 flist_done_allocating(flist);
1851 file_total += flist->used;
1852 stats.flist_size += stats.total_written - start_write;
1853 stats.num_files += flist->used;
1854 if (DEBUG_GTE(FLIST, 3))
1855 output_flist(flist);
1857 if (DIR_FIRST_CHILD(dp) >= 0) {
1858 send_dir_ndx = DIR_FIRST_CHILD(dp);
1861 while (DIR_NEXT_SIBLING(dp) < 0) {
1862 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1863 write_ndx(f, NDX_FLIST_EOF);
1865 change_local_filter_dir(NULL, 0, 0);
1869 file = dir_flist->sorted[send_dir_ndx];
1870 dp = F_DIR_NODE_P(file);
1872 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1877 if (io_error != save_io_error && !ignore_errors)
1878 send_msg_int(MSG_IO_ERROR, io_error);
1881 struct file_list *send_file_list(int f, int argc, char *argv[])
1883 static const char *lastdir;
1884 static int lastdir_len = -1;
1888 struct file_list *flist;
1889 struct timeval start_tv, end_tv;
1892 int disable_buffering;
1893 int flags = recurse ? FLAG_CONTENT_DIR : 0;
1894 int reading_remotely = filesfrom_host != NULL;
1895 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1897 | (filesfrom_convert ? RL_CONVERT : 0)
1899 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1900 int implied_dot_dir = 0;
1902 rprintf(FLOG, "building file list\n");
1903 if (show_filelist_p())
1904 start_filelist_progress("building file list");
1905 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
1906 rprintf(FCLIENT, "sending incremental file list\n");
1908 start_write = stats.total_written;
1909 gettimeofday(&start_tv, NULL);
1912 orig_dir = strdup(curr_dir);
1914 if (relative_paths && protocol_version >= 30)
1915 implied_dirs = 1; /* We send flagged implied dirs */
1917 #ifdef SUPPORT_HARD_LINKS
1918 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1922 flist = cur_flist = flist_new(0, "send_file_list");
1924 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1925 flags |= FLAG_DIVERT_DIRS;
1927 dir_flist = cur_flist;
1929 disable_buffering = io_start_buffering_out(f);
1930 if (filesfrom_fd >= 0) {
1931 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
1932 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
1933 full_fname(argv[0]));
1934 exit_cleanup(RERR_FILESELECT);
1940 char fbuf[MAXPATHLEN], *fn, name_type;
1943 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1945 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1949 strlcpy(fbuf, *argv++, MAXPATHLEN);
1951 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
1955 if (relative_paths) {
1956 /* We clean up fbuf below. */
1957 name_type = NORMAL_NAME;
1958 } else if (!len || fbuf[len - 1] == '/') {
1959 if (len == 2 && fbuf[0] == '.') {
1960 /* Turn "./" into just "." rather than "./." */
1963 if (len + 1 >= MAXPATHLEN)
1964 overflow_exit("send_file_list");
1968 name_type = DOTDIR_NAME;
1969 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1970 && (len == 2 || fbuf[len-3] == '/')) {
1971 if (len + 2 >= MAXPATHLEN)
1972 overflow_exit("send_file_list");
1976 name_type = DOTDIR_NAME;
1977 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
1978 name_type = DOTDIR_NAME;
1980 name_type = NORMAL_NAME;
1984 if (!relative_paths) {
1985 p = strrchr(fbuf, '/');
1992 len -= p - fbuf + 1;
1997 if ((p = strstr(fbuf, "/./")) != NULL) {
2003 clean_fname(dir, 0);
2009 *--fn = '\0'; /* ensure room for '.' */
2012 /* A leading ./ can be used in relative mode to affect
2013 * the dest dir without its name being in the path. */
2014 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
2015 send_file_name(f, flist, ".", NULL,
2016 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
2018 implied_dot_dir = 1;
2020 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2021 | CFN_DROP_TRAILING_DOT_DIR);
2026 name_type = DOTDIR_NAME;
2027 } else if (fn[0] == '.')
2028 name_type = DOTDIR_NAME;
2029 } else if (fn[len-1] == '/') {
2031 if (len == 1 && *fn == '.')
2032 name_type = DOTDIR_NAME;
2034 name_type = SLASH_ENDING_NAME;
2036 /* Reject a ".." dir in the active part of the path. */
2037 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2038 if ((p[2] == '/' || p[2] == '\0')
2039 && (p == fn || p[-1] == '/')) {
2041 "found \"..\" dir in relative path: %s\n",
2043 exit_cleanup(RERR_SYNTAX);
2051 name_type = DOTDIR_NAME;
2054 dirlen = dir ? strlen(dir) : 0;
2055 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2056 if (!change_pathname(NULL, dir, -dirlen))
2059 lastdir_len = pathname_len;
2060 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2064 memmove(fbuf, fn, len + 1);
2066 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2067 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2068 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2069 io_error |= IOERR_GENERAL;
2070 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2075 /* A dot-dir should not be excluded! */
2076 if (name_type != DOTDIR_NAME
2077 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2080 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2081 rprintf(FINFO, "skipping directory %s\n", fbuf);
2085 if (inc_recurse && relative_paths && *fbuf) {
2086 if ((p = strchr(fbuf+1, '/')) != NULL) {
2087 if (p - fbuf == 1 && *fbuf == '.') {
2088 if ((fn = strchr(p+1, '/')) != NULL)
2092 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2096 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2097 /* Send the implied directories at the start of the
2098 * source spec, so we get their permissions right. */
2099 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2102 if (one_file_system)
2103 filesystem_dev = st.st_dev;
2105 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2106 struct file_struct *file;
2107 file = send_file_name(f, flist, fbuf, &st,
2108 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2113 if (name_type == DOTDIR_NAME) {
2114 if (send_dir_depth < 0) {
2116 change_local_filter_dir(fbuf, len, send_dir_depth);
2118 send_directory(f, flist, fbuf, len, flags);
2121 send_if_directory(f, flist, file, fbuf, len, flags);
2123 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2126 gettimeofday(&end_tv, NULL);
2127 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2128 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2129 if (stats.flist_buildtime == 0)
2130 stats.flist_buildtime = 1;
2133 write_byte(f, 0); /* Indicate end of file list */
2135 #ifdef SUPPORT_HARD_LINKS
2136 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2140 if (show_filelist_p())
2141 finish_filelist_progress(flist);
2143 gettimeofday(&end_tv, NULL);
2144 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2145 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2147 /* When converting names, both sides keep an unsorted file-list array
2148 * because the names will differ on the sending and receiving sides
2149 * (both sides will use the unsorted index number for each item). */
2151 /* Sort the list without removing any duplicates. This allows the
2152 * receiving side to ask for whatever name it kept. For incremental
2153 * recursion mode, the sender marks duplicate dirs so that it can
2154 * send them together in a single file-list. */
2155 if (need_unsorted_flist) {
2156 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2157 out_of_memory("send_file_list");
2158 memcpy(flist->sorted, flist->files,
2159 flist->used * sizeof (struct file_struct*));
2161 flist->sorted = flist->files;
2162 flist_sort_and_clean(flist, 0);
2163 file_total += flist->used;
2165 if (numeric_ids <= 0 && !inc_recurse)
2168 /* send the io_error flag */
2169 if (protocol_version < 30)
2170 write_int(f, ignore_errors ? 0 : io_error);
2171 else if (io_error && !ignore_errors)
2172 send_msg_int(MSG_IO_ERROR, io_error);
2174 if (disable_buffering)
2175 io_end_buffering_out();
2177 stats.flist_size = stats.total_written - start_write;
2178 stats.num_files = flist->used;
2180 if (DEBUG_GTE(FLIST, 3))
2181 output_flist(flist);
2183 if (DEBUG_GTE(FLIST, 2))
2184 rprintf(FINFO, "send_file_list done\n");
2188 add_dirs_to_tree(-1, flist, dir_count);
2189 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2190 flist->parent_ndx = -1;
2191 flist_done_allocating(flist);
2192 if (send_dir_ndx < 0) {
2193 write_ndx(f, NDX_FLIST_EOF);
2196 else if (file_total == 1) {
2197 /* If we're creating incremental file-lists and there
2198 * was just 1 item in the first file-list, send 1 more
2199 * file-list to check if this is a 1-file xfer. */
2200 send_extra_file_list(f, 1);
2207 struct file_list *recv_file_list(int f)
2209 struct file_list *flist;
2214 if (show_filelist_p())
2215 start_filelist_progress("receiving file list");
2216 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2217 rprintf(FCLIENT, "receiving incremental file list\n");
2218 rprintf(FLOG, "receiving file list\n");
2221 start_read = stats.total_read;
2223 #ifdef SUPPORT_HARD_LINKS
2224 if (preserve_hard_links && !first_flist)
2228 flist = flist_new(0, "recv_file_list");
2231 if (flist->ndx_start == 1)
2232 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2233 dstart = dir_flist->used;
2239 while ((flags = read_byte(f)) != 0) {
2240 struct file_struct *file;
2242 flist_expand(flist, 1);
2244 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2245 flags |= read_byte(f) << 8;
2246 file = recv_file_entry(flist, flags, f);
2248 if (inc_recurse && S_ISDIR(file->mode)) {
2249 flist_expand(dir_flist, 1);
2250 dir_flist->files[dir_flist->used++] = file;
2253 flist->files[flist->used++] = file;
2255 maybe_emit_filelist_progress(flist->used);
2257 if (DEBUG_GTE(FLIST, 2)) {
2258 rprintf(FINFO, "recv_file_name(%s)\n",
2259 f_name(file, NULL));
2262 file_total += flist->used;
2264 if (DEBUG_GTE(FLIST, 2))
2265 rprintf(FINFO, "received %d names\n", flist->used);
2267 if (show_filelist_p())
2268 finish_filelist_progress(flist);
2270 if (need_unsorted_flist) {
2271 /* Create an extra array of index pointers that we can sort for
2272 * the generator's use (for wading through the files in sorted
2273 * order and for calling flist_find()). We keep the "files"
2274 * list unsorted for our exchange of index numbers with the
2275 * other side (since their names may not sort the same). */
2276 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2277 out_of_memory("recv_file_list");
2278 memcpy(flist->sorted, flist->files,
2279 flist->used * sizeof (struct file_struct*));
2280 if (inc_recurse && dir_flist->used > dstart) {
2281 static int dir_flist_malloced = 0;
2282 if (dir_flist_malloced < dir_flist->malloced) {
2283 dir_flist->sorted = realloc_array(dir_flist->sorted,
2284 struct file_struct *,
2285 dir_flist->malloced);
2286 dir_flist_malloced = dir_flist->malloced;
2288 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2289 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2290 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2293 flist->sorted = flist->files;
2294 if (inc_recurse && dir_flist->used > dstart) {
2295 dir_flist->sorted = dir_flist->files;
2296 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2301 flist_done_allocating(flist);
2303 recv_id_list(f, flist);
2305 flist_sort_and_clean(flist, relative_paths);
2307 if (protocol_version < 30) {
2308 /* Recv the io_error flag */
2312 io_error |= read_int(f);
2313 } else if (inc_recurse && flist->ndx_start == 1) {
2314 if (!file_total || strcmp(flist->sorted[0]->basename, ".") != 0)
2315 flist->parent_ndx = -1;
2318 if (DEBUG_GTE(FLIST, 3))
2319 output_flist(flist);
2321 if (DEBUG_GTE(FLIST, 2))
2322 rprintf(FINFO, "recv_file_list done\n");
2324 stats.flist_size += stats.total_read - start_read;
2325 stats.num_files += flist->used;
2330 /* This is only used once by the receiver if the very first file-list
2331 * has exactly one item in it. */
2332 void recv_additional_file_list(int f)
2334 struct file_list *flist;
2335 int ndx = read_ndx(f);
2336 if (ndx == NDX_FLIST_EOF) {
2338 change_local_filter_dir(NULL, 0, 0);
2340 ndx = NDX_FLIST_OFFSET - ndx;
2341 if (ndx < 0 || ndx >= dir_flist->used) {
2342 ndx = NDX_FLIST_OFFSET - ndx;
2344 "[%s] Invalid dir index: %d (%d - %d)\n",
2345 who_am_i(), ndx, NDX_FLIST_OFFSET,
2346 NDX_FLIST_OFFSET - dir_flist->used + 1);
2347 exit_cleanup(RERR_PROTOCOL);
2349 if (DEBUG_GTE(FLIST, 3)) {
2350 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2353 flist = recv_file_list(f);
2354 flist->parent_ndx = ndx;
2358 /* Search for an identically-named item in the file list. Note that the
2359 * items must agree in their directory-ness, or no match is returned. */
2360 int flist_find(struct file_list *flist, struct file_struct *f)
2362 int low = flist->low, high = flist->high;
2363 int diff, mid, mid_up;
2365 while (low <= high) {
2366 mid = (low + high) / 2;
2367 if (F_IS_ACTIVE(flist->sorted[mid]))
2370 /* Scan for the next non-empty entry using the cached
2371 * distance values. If the value isn't fully up-to-
2372 * date, update it. */
2373 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2374 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2376 mid_up += F_DEPTH(flist->sorted[mid_up]);
2377 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2378 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2380 if (mid_up > high) {
2381 /* If there's nothing left above us, set high to
2382 * a non-empty entry below us and continue. */
2383 high = mid - (int)flist->sorted[mid]->len32;
2384 if (!F_IS_ACTIVE(flist->sorted[high])) {
2386 high -= (int)flist->sorted[high]->len32;
2387 } while (!F_IS_ACTIVE(flist->sorted[high]));
2388 flist->sorted[mid]->len32 = mid - high;
2393 diff = f_name_cmp(flist->sorted[mid_up], f);
2395 if (protocol_version < 29
2396 && S_ISDIR(flist->sorted[mid_up]->mode)
2397 != S_ISDIR(f->mode))
2410 * Free up any resources a file_struct has allocated
2411 * and clear the file.
2413 void clear_file(struct file_struct *file)
2415 /* The +1 zeros out the first char of the basename. */
2416 memset(file, 0, FILE_STRUCT_LEN + 1);
2417 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2418 * entry. Likewise for len32 in the opposite direction. We assume
2419 * that we're alone for now since flist_find() will adjust the counts
2420 * it runs into that aren't up-to-date. */
2421 file->len32 = F_DEPTH(file) = 1;
2424 /* Allocate a new file list. */
2425 struct file_list *flist_new(int flags, char *msg)
2427 struct file_list *flist;
2429 if (!(flist = new0(struct file_list)))
2432 if (flags & FLIST_TEMP) {
2433 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2435 POOL_INTERN|POOL_QALIGN)))
2438 /* This is a doubly linked list with prev looping back to
2439 * the end of the list, but the last next pointer is NULL. */
2441 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2443 POOL_INTERN|POOL_QALIGN);
2444 if (!flist->file_pool)
2447 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2449 first_flist = cur_flist = flist->prev = flist;
2451 struct file_list *prev = first_flist->prev;
2453 flist->file_pool = first_flist->file_pool;
2455 flist->ndx_start = prev->ndx_start + prev->used + 1;
2456 flist->flist_num = prev->flist_num + 1;
2459 prev->next = first_flist->prev = flist;
2461 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2468 /* Free up all elements in a flist. */
2469 void flist_free(struct file_list *flist)
2472 /* Was FLIST_TEMP dir-list. */
2473 } else if (flist == flist->prev) {
2474 first_flist = cur_flist = NULL;
2478 if (flist == cur_flist)
2479 cur_flist = flist->next;
2480 if (flist == first_flist)
2481 first_flist = first_flist->next;
2483 flist->prev->next = flist->next;
2485 flist->next = first_flist;
2487 flist->next->prev = flist->prev;
2488 file_total -= flist->used;
2492 if (!flist->prev || !flist_cnt)
2493 pool_destroy(flist->file_pool);
2495 pool_free_old(flist->file_pool, flist->pool_boundary);
2497 if (flist->sorted && flist->sorted != flist->files)
2498 free(flist->sorted);
2503 /* This routine ensures we don't have any duplicate names in our file list.
2504 * duplicate names can cause corruption because of the pipelining. */
2505 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2507 char fbuf[MAXPATHLEN];
2512 if (flist->used == 0) {
2518 fsort(flist->sorted, flist->used);
2520 if (!am_sender || inc_recurse) {
2521 for (i = prev_i = 0; i < flist->used; i++) {
2522 if (F_IS_ACTIVE(flist->sorted[i])) {
2527 flist->low = prev_i;
2529 i = prev_i = flist->used - 1;
2533 while (++i < flist->used) {
2535 struct file_struct *file = flist->sorted[i];
2537 if (!F_IS_ACTIVE(file))
2539 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2541 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2542 int save_mode = file->mode;
2543 /* Make sure that this directory doesn't duplicate a
2544 * non-directory earlier in the list. */
2545 flist->high = prev_i;
2546 file->mode = S_IFREG;
2547 j = flist_find(flist, file);
2548 file->mode = save_mode;
2553 /* If one is a dir and the other is not, we want to
2554 * keep the dir because it might have contents in the
2555 * list. Otherwise keep the first one. */
2556 if (S_ISDIR(file->mode)) {
2557 struct file_struct *fp = flist->sorted[j];
2558 if (!S_ISDIR(fp->mode))
2562 file->flags |= FLAG_DUPLICATE;
2563 else { /* Make sure we merge our vital flags. */
2564 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2565 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2573 if (DEBUG_GTE(DUP, 1)) {
2575 "removing duplicate name %s from file list (%d)\n",
2576 f_name(file, fbuf), drop + flist->ndx_start);
2578 clear_file(flist->sorted[drop]);
2582 if (flist->low == drop) {
2584 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2593 flist->high = prev_i;
2596 /* We need to strip off the leading slashes for relative
2597 * paths, but this must be done _after_ the sorting phase. */
2598 for (i = flist->low; i <= flist->high; i++) {
2599 struct file_struct *file = flist->sorted[i];
2603 while (*file->dirname == '/')
2605 if (!*file->dirname)
2606 file->dirname = NULL;
2610 if (prune_empty_dirs && !am_sender) {
2611 int j, prev_depth = 0;
2613 prev_i = 0; /* It's OK that this isn't really true. */
2615 for (i = flist->low; i <= flist->high; i++) {
2616 struct file_struct *fp, *file = flist->sorted[i];
2618 /* This temporarily abuses the F_DEPTH() value for a
2619 * directory that is in a chain that might get pruned.
2620 * We restore the old value if it gets a reprieve. */
2621 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2622 /* Dump empty dirs when coming back down. */
2623 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2624 fp = flist->sorted[prev_i];
2625 if (F_DEPTH(fp) >= 0)
2627 prev_i = -F_DEPTH(fp)-1;
2630 prev_depth = F_DEPTH(file);
2631 if (is_excluded(f_name(file, fbuf), 1,
2633 /* Keep dirs through this dir. */
2634 for (j = prev_depth-1; ; j--) {
2635 fp = flist->sorted[prev_i];
2636 if (F_DEPTH(fp) >= 0)
2638 prev_i = -F_DEPTH(fp)-1;
2642 F_DEPTH(file) = -prev_i-1;
2645 /* Keep dirs through this non-dir. */
2646 for (j = prev_depth; ; j--) {
2647 fp = flist->sorted[prev_i];
2648 if (F_DEPTH(fp) >= 0)
2650 prev_i = -F_DEPTH(fp)-1;
2655 /* Dump all remaining empty dirs. */
2657 struct file_struct *fp = flist->sorted[prev_i];
2658 if (F_DEPTH(fp) >= 0)
2660 prev_i = -F_DEPTH(fp)-1;
2664 for (i = flist->low; i <= flist->high; i++) {
2665 if (F_IS_ACTIVE(flist->sorted[i]))
2669 for (i = flist->high; i >= flist->low; i--) {
2670 if (F_IS_ACTIVE(flist->sorted[i]))
2677 static void output_flist(struct file_list *flist)
2679 char uidbuf[16], gidbuf[16], depthbuf[16];
2680 struct file_struct *file;
2681 const char *root, *dir, *slash, *name, *trail;
2682 const char *who = who_am_i();
2685 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2686 who, flist->ndx_start, flist->used, flist->low, flist->high);
2687 for (i = 0; i < flist->used; i++) {
2688 file = flist->files[i];
2689 if ((am_root || am_sender) && uid_ndx) {
2690 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2695 static char parens[] = "(\0)\0\0\0";
2696 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2697 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2698 pp, F_GROUP(file), pp + 2);
2702 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2703 if (F_IS_ACTIVE(file)) {
2704 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2705 if ((dir = file->dirname) == NULL)
2709 name = file->basename;
2710 trail = S_ISDIR(file->mode) ? "/" : "";
2712 root = dir = slash = name = trail = "";
2714 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
2715 who, i + flist->ndx_start,
2716 root, dir, slash, name, trail,
2717 (int)file->mode, big_num(F_LENGTH(file), 0),
2718 uidbuf, gidbuf, file->flags);
2722 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2723 enum fnc_type { t_PATH, t_ITEM };
2725 static int found_prefix;
2727 /* Compare the names of two file_struct entities, similar to how strcmp()
2728 * would do if it were operating on the joined strings.
2730 * Some differences beginning with protocol_version 29: (1) directory names
2731 * are compared with an assumed trailing slash so that they compare in a
2732 * way that would cause them to sort immediately prior to any content they
2733 * may have; (2) a directory of any name compares after a non-directory of
2734 * any name at the same depth; (3) a directory with name "." compares prior
2735 * to anything else. These changes mean that a directory and a non-dir
2736 * with the same name will not compare as equal (protocol_version >= 29).
2738 * The dirname component can be an empty string, but the basename component
2739 * cannot (and never is in the current codebase). The basename component
2740 * may be NULL (for a removed item), in which case it is considered to be
2741 * after any existing item. */
2742 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2745 const uchar *c1, *c2;
2746 enum fnc_state state1, state2;
2747 enum fnc_type type1, type2;
2748 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2750 if (!f1 || !F_IS_ACTIVE(f1)) {
2751 if (!f2 || !F_IS_ACTIVE(f2))
2755 if (!f2 || !F_IS_ACTIVE(f2))
2758 c1 = (uchar*)f1->dirname;
2759 c2 = (uchar*)f2->dirname;
2763 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2764 c1 = (const uchar*)f1->basename;
2765 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2767 state1 = s_TRAILING;
2776 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2777 c2 = (const uchar*)f2->basename;
2778 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2780 state2 = s_TRAILING;
2790 return type1 == t_PATH ? 1 : -1;
2800 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2801 c1 = (const uchar*)f1->basename;
2802 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2804 state1 = s_TRAILING;
2810 state1 = s_TRAILING;
2811 if (type1 == t_PATH) {
2820 if (*c2 && type1 != type2)
2821 return type1 == t_PATH ? 1 : -1;
2830 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2831 c2 = (const uchar*)f2->basename;
2832 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2834 state2 = s_TRAILING;
2840 state2 = s_TRAILING;
2841 if (type2 == t_PATH) {
2854 return type1 == t_PATH ? 1 : -1;
2856 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2861 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2862 * not match if f2's basename is not an exact match of a path element in f1.
2863 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2864 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2868 return found_prefix;
2871 char *f_name_buf(void)
2873 static char names[5][MAXPATHLEN];
2874 static unsigned int n;
2876 n = (n + 1) % (sizeof names / sizeof names[0]);
2881 /* Return a copy of the full filename of a flist entry, using the indicated
2882 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2883 * done because we checked the size when creating the file_struct entry.
2885 char *f_name(const struct file_struct *f, char *fbuf)
2887 if (!f || !F_IS_ACTIVE(f))
2891 fbuf = f_name_buf();
2894 int len = strlen(f->dirname);
2895 memcpy(fbuf, f->dirname, len);
2897 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2899 strlcpy(fbuf, f->basename, MAXPATHLEN);
2904 /* Do a non-recursive scan of the named directory, possibly ignoring all
2905 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2906 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2907 * buffer (the functions we call will append names onto the end, but the old
2908 * dir value will be restored on exit). */
2909 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2911 struct file_list *dirlist;
2912 char dirbuf[MAXPATHLEN];
2913 int save_recurse = recurse;
2914 int save_xfer_dirs = xfer_dirs;
2915 int save_prune_empty_dirs = prune_empty_dirs;
2918 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2919 if (dlen >= MAXPATHLEN)
2924 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2928 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2929 xfer_dirs = save_xfer_dirs;
2930 recurse = save_recurse;
2931 if (INFO_GTE(PROGRESS, 1))
2932 flist_count_offset += dirlist->used;
2934 prune_empty_dirs = 0;
2935 dirlist->sorted = dirlist->files;
2936 flist_sort_and_clean(dirlist, 0);
2937 prune_empty_dirs = save_prune_empty_dirs;
2939 if (DEBUG_GTE(FLIST, 3))
2940 output_flist(dirlist);