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) 2002-2009 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
33 extern int am_generator;
34 extern int inc_recurse;
35 extern int always_checksum;
37 extern int ignore_errors;
38 extern int numeric_ids;
42 extern int filesfrom_fd;
43 extern int one_file_system;
44 extern int copy_dirlinks;
45 extern int keep_dirlinks;
46 extern int preserve_uid;
47 extern int preserve_gid;
48 extern int preserve_acls;
49 extern int preserve_xattrs;
50 extern int preserve_links;
51 extern int preserve_hard_links;
52 extern int preserve_devices;
53 extern int preserve_specials;
54 extern int missing_args;
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 sender_symlink_iconv;
71 extern int output_needs_newline;
72 extern int sender_keeps_checksum;
73 extern int unsort_ndx;
74 extern struct stats stats;
75 extern char *filesfrom_host;
76 extern char *usermap, *groupmap;
78 extern char curr_dir[MAXPATHLEN];
80 extern struct chmod_mode_struct *chmod_modes;
82 extern filter_rule_list filter_list;
83 extern filter_rule_list daemon_filter_list;
86 extern int filesfrom_convert;
87 extern iconv_t ic_send, ic_recv;
90 #define PTR_SIZE (sizeof (struct file_struct *))
94 dev_t filesystem_dev; /* used to implement -x */
96 struct file_list *cur_flist, *first_flist, *dir_flist;
97 int send_dir_ndx = -1, send_dir_depth = -1;
98 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
99 int file_total = 0; /* total of all active items over all file-lists */
100 int file_old_total = 0; /* total of active items that will soon be gone */
101 int flist_eof = 0; /* all the file-lists are now known */
103 #define NORMAL_NAME 0
104 #define SLASH_ENDING_NAME 1
105 #define DOTDIR_NAME 2
107 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
108 * internally, even if this platform does not allow files to have 64-bit inums.
109 * The only exception is if we're on a platform with no 64-bit type at all.
111 * Because we use read_longint() to get these off the wire, if you transfer
112 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
113 * machine with no 64-bit types then you will get an overflow error.
115 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
116 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
117 * be truncated. But it's a kind of silly thing to do anyhow. */
119 /* The tmp_* vars are used as a cache area by make_file() to store data
120 * that the sender doesn't need to remember in its file list. The data
121 * will survive just long enough to be used by send_file_entry(). */
122 static dev_t tmp_rdev;
123 #ifdef SUPPORT_HARD_LINKS
124 static int64 tmp_dev, tmp_ino;
126 static char tmp_sum[MAX_DIGEST_LEN];
128 static char empty_sum[MAX_DIGEST_LEN];
129 static int flist_count_offset; /* for --delete --progress */
131 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
132 static void output_flist(struct file_list *flist);
134 void init_flist(void)
136 if (DEBUG_GTE(FLIST, 4)) {
137 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
138 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
140 checksum_len = protocol_version < 21 ? 2
141 : protocol_version < 30 ? MD4_DIGEST_LEN
145 static int show_filelist_p(void)
147 return INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
150 static void start_filelist_progress(char *kind)
152 rprintf(FCLIENT, "%s ... ", kind);
153 output_needs_newline = 1;
157 static void emit_filelist_progress(int count)
159 rprintf(FCLIENT, " %d files...\r", count);
162 static void maybe_emit_filelist_progress(int count)
164 if (INFO_GTE(FLIST, 2) && show_filelist_p() && (count % 100) == 0)
165 emit_filelist_progress(count);
168 static void finish_filelist_progress(const struct file_list *flist)
170 if (INFO_GTE(FLIST, 2)) {
171 /* This overwrites the progress line */
172 rprintf(FINFO, "%d file%sto consider\n",
173 flist->used, flist->used == 1 ? " " : "s ");
175 output_needs_newline = 0;
176 rprintf(FINFO, "done\n");
180 void show_flist_stats(void)
185 /* Stat either a symlink or its referent, depending on the settings of
186 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
188 * If path is the name of a symlink, then the linkbuf buffer (which must hold
189 * MAXPATHLEN chars) will be set to the symlink's target string.
191 * The stat structure pointed to by stp will contain information about the
192 * link or the referent as appropriate, if they exist. */
193 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
196 if (link_stat(path, stp, copy_dirlinks) < 0)
198 if (S_ISLNK(stp->st_mode)) {
199 int llen = do_readlink(path, linkbuf, MAXPATHLEN - 1);
202 linkbuf[llen] = '\0';
203 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
204 if (INFO_GTE(SYMSAFE, 1)) {
205 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
208 return x_stat(path, stp, NULL);
210 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
211 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
212 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
213 llen - SYMLINK_PREFIX_LEN + 1);
218 return x_stat(path, stp, NULL);
222 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
226 return x_stat(path, stp, NULL);
227 if (x_lstat(path, stp, NULL) < 0)
229 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
231 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
236 return x_stat(path, stp, NULL);
240 static inline int is_daemon_excluded(const char *fname, int is_dir)
242 if (daemon_filter_list.head
243 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
250 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
252 if (daemon_filter_list.head) {
255 while ((slash = strchr(slash+1, '/')) != NULL) {
258 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
267 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
276 /* This function is used to check if a file should be included/excluded
277 * from the list of files based on its name and type etc. The value of
278 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
279 static int is_excluded(const char *fname, int is_dir, int filter_level)
281 #if 0 /* This currently never happens, so avoid a useless compare. */
282 if (filter_level == NO_FILTERS)
285 if (is_daemon_excluded(fname, is_dir))
287 if (filter_level != ALL_FILTERS)
290 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
295 static void send_directory(int f, struct file_list *flist,
296 char *fbuf, int len, int flags);
298 static const char *pathname, *orig_dir;
299 static int pathname_len;
301 /* Make sure flist can hold at least flist->used + extra entries. */
302 static void flist_expand(struct file_list *flist, int extra)
304 struct file_struct **new_ptr;
306 if (flist->used + extra <= flist->malloced)
309 if (flist->malloced < FLIST_START)
310 flist->malloced = FLIST_START;
311 else if (flist->malloced >= FLIST_LINEAR)
312 flist->malloced += FLIST_LINEAR;
314 flist->malloced *= 2;
316 /* In case count jumped or we are starting the list
317 * with a known size just set it. */
318 if (flist->malloced < flist->used + extra)
319 flist->malloced = flist->used + extra;
321 new_ptr = realloc_array(flist->files, struct file_struct *,
324 if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
325 rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
327 big_num(sizeof flist->files[0] * flist->malloced),
328 (new_ptr == flist->files) ? " not" : "");
331 flist->files = new_ptr;
334 out_of_memory("flist_expand");
337 static void flist_done_allocating(struct file_list *flist)
339 void *ptr = pool_boundary(flist->file_pool, 8*1024);
340 if (flist->pool_boundary == ptr)
341 flist->pool_boundary = NULL; /* list didn't use any pool memory */
343 flist->pool_boundary = ptr;
346 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
347 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
348 * with dir == NULL taken to be the starting directory, and dirlen < 0
349 * indicating that strdup(dir) should be called and then the -dirlen length
350 * value checked to ensure that it is not daemon-excluded. */
351 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
354 char *cpy = strdup(dir);
356 change_dir(orig_dir, CD_SKIP_CHDIR);
357 if (path_is_daemon_excluded(cpy, 0))
363 if (pathname == F_PATHNAME(file))
365 dir = F_PATHNAME(file);
367 dirlen = strlen(dir);
368 } else if (pathname == dir)
370 if (dir && *dir != '/')
371 change_dir(orig_dir, CD_SKIP_CHDIR);
375 pathname_len = dirlen;
380 if (!change_dir(dir, CD_NORMAL)) {
382 io_error |= IOERR_GENERAL;
383 rsyserr(FERROR_XFER, errno, "change_dir %s failed", full_fname(dir));
385 change_dir(orig_dir, CD_NORMAL);
394 static void send_file_entry(int f, const char *fname, struct file_struct *file,
396 const char *symlink_name, int symlink_len,
398 int ndx, int first_ndx)
400 static time_t modtime;
402 #ifdef SUPPORT_HARD_LINKS
406 static uint32 rdev_major;
409 static const char *user_name, *group_name;
410 static char lastname[MAXPATHLEN];
411 #ifdef SUPPORT_HARD_LINKS
412 int first_hlink_ndx = -1;
417 /* Initialize starting value of xflags and adjust counts. */
418 if (S_ISREG(file->mode))
420 else if (S_ISDIR(file->mode)) {
422 if (protocol_version >= 30) {
423 if (file->flags & FLAG_CONTENT_DIR)
424 xflags = file->flags & FLAG_TOP_DIR;
425 else if (file->flags & FLAG_IMPLIED_DIR)
426 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
428 xflags = XMIT_NO_CONTENT_DIR;
430 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
432 if (S_ISLNK(file->mode))
433 stats.num_symlinks++;
434 else if (IS_DEVICE(file->mode))
436 else if (IS_SPECIAL(file->mode))
437 stats.num_specials++;
441 if (file->mode == mode)
442 xflags |= XMIT_SAME_MODE;
446 if (preserve_devices && IS_DEVICE(mode)) {
447 if (protocol_version < 28) {
448 if (tmp_rdev == rdev)
449 xflags |= XMIT_SAME_RDEV_pre28;
454 if ((uint32)major(rdev) == rdev_major)
455 xflags |= XMIT_SAME_RDEV_MAJOR;
457 rdev_major = major(rdev);
458 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
459 xflags |= XMIT_RDEV_MINOR_8_pre30;
461 } else if (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31) {
462 /* Special files don't need an rdev number, so just make
463 * the historical transmission of the value efficient. */
464 if (protocol_version < 28)
465 xflags |= XMIT_SAME_RDEV_pre28;
467 rdev = MAKEDEV(major(rdev), 0);
468 xflags |= XMIT_SAME_RDEV_MAJOR;
469 if (protocol_version < 30)
470 xflags |= XMIT_RDEV_MINOR_8_pre30;
472 } else if (protocol_version < 28)
473 rdev = MAKEDEV(0, 0);
474 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
475 xflags |= XMIT_SAME_UID;
479 user_name = add_uid(uid);
480 if (inc_recurse && user_name)
481 xflags |= XMIT_USER_NAME_FOLLOWS;
484 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
485 xflags |= XMIT_SAME_GID;
489 group_name = add_gid(gid);
490 if (inc_recurse && group_name)
491 xflags |= XMIT_GROUP_NAME_FOLLOWS;
494 if (file->modtime == modtime)
495 xflags |= XMIT_SAME_TIME;
497 modtime = file->modtime;
499 #ifdef SUPPORT_HARD_LINKS
501 if (protocol_version >= 30) {
502 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
503 first_hlink_ndx = (int32)(long)np->data - 1;
504 if (first_hlink_ndx < 0) {
505 np->data = (void*)(long)(first_ndx + ndx + 1);
506 xflags |= XMIT_HLINK_FIRST;
508 if (DEBUG_GTE(HLINK, 1)) {
509 if (first_hlink_ndx >= 0) {
510 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
511 who_am_i(), first_ndx + ndx, first_hlink_ndx,
512 first_hlink_ndx >= first_ndx ? "" : "un");
513 } else if (DEBUG_GTE(HLINK, 3)) {
514 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
515 who_am_i(), first_ndx + ndx,
516 big_num(tmp_dev), big_num(tmp_ino));
520 if (tmp_dev == dev) {
521 if (protocol_version >= 28)
522 xflags |= XMIT_SAME_DEV_pre30;
526 xflags |= XMIT_HLINKED;
531 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
533 l2 = strlen(fname+l1);
536 xflags |= XMIT_SAME_NAME;
538 xflags |= XMIT_LONG_NAME;
540 /* We must make sure we don't send a zero flag byte or the
541 * other end will terminate the flist transfer. Note that
542 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
543 * it's harmless way to add a bit to the first flag byte. */
544 if (protocol_version >= 28) {
545 if (!xflags && !S_ISDIR(mode))
546 xflags |= XMIT_TOP_DIR;
547 if ((xflags & 0xFF00) || !xflags) {
548 xflags |= XMIT_EXTENDED_FLAGS;
549 write_shortint(f, xflags);
551 write_byte(f, xflags);
553 if (!(xflags & 0xFF))
554 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
555 write_byte(f, xflags);
557 if (xflags & XMIT_SAME_NAME)
559 if (xflags & XMIT_LONG_NAME)
560 write_varint30(f, l2);
563 write_buf(f, fname + l1, l2);
565 #ifdef SUPPORT_HARD_LINKS
566 if (first_hlink_ndx >= 0) {
567 write_varint(f, first_hlink_ndx);
568 if (first_hlink_ndx >= first_ndx)
573 write_varlong30(f, F_LENGTH(file), 3);
574 if (!(xflags & XMIT_SAME_TIME)) {
575 if (protocol_version >= 30)
576 write_varlong(f, modtime, 4);
578 write_int(f, modtime);
580 if (!(xflags & XMIT_SAME_MODE))
581 write_int(f, to_wire_mode(mode));
582 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
583 if (protocol_version < 30)
586 write_varint(f, uid);
587 if (xflags & XMIT_USER_NAME_FOLLOWS) {
588 int len = strlen(user_name);
590 write_buf(f, user_name, len);
594 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
595 if (protocol_version < 30)
598 write_varint(f, gid);
599 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
600 int len = strlen(group_name);
602 write_buf(f, group_name, len);
606 if ((preserve_devices && IS_DEVICE(mode))
607 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
608 if (protocol_version < 28) {
609 if (!(xflags & XMIT_SAME_RDEV_pre28))
610 write_int(f, (int)rdev);
612 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
613 write_varint30(f, major(rdev));
614 if (protocol_version >= 30)
615 write_varint(f, minor(rdev));
616 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
617 write_byte(f, minor(rdev));
619 write_int(f, minor(rdev));
625 write_varint30(f, symlink_len);
626 write_buf(f, symlink_name, symlink_len);
630 #ifdef SUPPORT_HARD_LINKS
631 if (tmp_dev != 0 && protocol_version < 30) {
632 if (protocol_version < 26) {
633 /* 32-bit dev_t and ino_t */
634 write_int(f, (int32)dev);
635 write_int(f, (int32)tmp_ino);
637 /* 64-bit dev_t and ino_t */
638 if (!(xflags & XMIT_SAME_DEV_pre30))
639 write_longint(f, dev);
640 write_longint(f, tmp_ino);
645 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
650 /* Prior to 28, we sent a useless set of nulls. */
653 write_buf(f, sum, checksum_len);
656 #ifdef SUPPORT_HARD_LINKS
659 strlcpy(lastname, fname, MAXPATHLEN);
661 if (S_ISREG(mode) || S_ISLNK(mode))
662 stats.total_size += F_LENGTH(file);
665 static struct file_struct *recv_file_entry(struct file_list *flist,
668 static int64 modtime;
670 #ifdef SUPPORT_HARD_LINKS
674 static uint32 rdev_major;
677 static uint16 gid_flags;
678 static char lastname[MAXPATHLEN], *lastdir;
679 static int lastdir_depth, lastdir_len = -1;
680 static unsigned int del_hier_name_len = 0;
681 static int in_del_hier = 0;
682 char thisname[MAXPATHLEN];
683 unsigned int l1 = 0, l2 = 0;
684 int alloc_len, basename_len, linkname_len;
685 int extra_len = file_extra_cnt * EXTRA_LEN;
686 int first_hlink_ndx = -1;
688 const char *basename;
689 struct file_struct *file;
693 if (xflags & XMIT_SAME_NAME)
696 if (xflags & XMIT_LONG_NAME)
697 l2 = read_varint30(f);
701 if (l2 >= MAXPATHLEN - l1) {
703 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
704 xflags, l1, l2, lastname, who_am_i());
705 overflow_exit("recv_file_entry");
708 strlcpy(thisname, lastname, l1 + 1);
709 read_sbuf(f, &thisname[l1], l2);
710 thisname[l1 + l2] = 0;
712 /* Abuse basename_len for a moment... */
713 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
716 if (ic_recv != (iconv_t)-1) {
719 INIT_CONST_XBUF(outbuf, thisname);
720 INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
722 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
723 io_error |= IOERR_GENERAL;
725 "[%s] cannot convert filename: %s (%s)\n",
726 who_am_i(), lastname, strerror(errno));
729 thisname[outbuf.len] = '\0';
734 clean_fname(thisname, 0);
737 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
739 if ((basename = strrchr(thisname, '/')) != NULL) {
740 int len = basename++ - thisname;
741 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
742 lastdir = new_array(char, len + 1);
743 memcpy(lastdir, thisname, len);
746 lastdir_depth = count_dir_elements(lastdir);
750 basename_len = strlen(basename) + 1; /* count the '\0' */
752 #ifdef SUPPORT_HARD_LINKS
753 if (protocol_version >= 30
754 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
755 first_hlink_ndx = read_varint(f);
756 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
758 "hard-link reference out of range: %d (%d)\n",
759 first_hlink_ndx, flist->ndx_start + flist->used);
760 exit_cleanup(RERR_PROTOCOL);
762 if (DEBUG_GTE(HLINK, 1)) {
763 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
764 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
765 first_hlink_ndx >= flist->ndx_start ? "" : "un");
767 if (first_hlink_ndx >= flist->ndx_start) {
768 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
769 file_length = F_LENGTH(first);
770 modtime = first->modtime;
773 uid = F_OWNER(first);
775 gid = F_GROUP(first);
776 if (preserve_devices && IS_DEVICE(mode)) {
777 uint32 *devp = F_RDEV_P(first);
778 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
779 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
781 if (preserve_links && S_ISLNK(mode))
782 linkname_len = strlen(F_SYMLINK(first)) + 1;
790 file_length = read_varlong30(f, 3);
791 if (!(xflags & XMIT_SAME_TIME)) {
792 if (protocol_version >= 30) {
793 modtime = read_varlong(f, 4);
794 #if SIZEOF_TIME_T < SIZEOF_INT64
795 if (!am_generator && (int64)(time_t)modtime != modtime) {
797 "Time value of %s truncated on receiver.\n",
802 modtime = read_int(f);
804 if (!(xflags & XMIT_SAME_MODE))
805 mode = from_wire_mode(read_int(f));
807 if (chmod_modes && !S_ISLNK(mode) && mode)
808 mode = tweak_mode(mode, chmod_modes);
810 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
811 if (protocol_version < 30)
812 uid = (uid_t)read_int(f);
814 uid = (uid_t)read_varint(f);
815 if (xflags & XMIT_USER_NAME_FOLLOWS)
816 uid = recv_user_name(f, uid);
817 else if (inc_recurse && am_root && (!numeric_ids || usermap))
818 uid = match_uid(uid);
821 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
822 if (protocol_version < 30)
823 gid = (gid_t)read_int(f);
825 gid = (gid_t)read_varint(f);
827 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
828 gid = recv_group_name(f, gid, &gid_flags);
829 else if (inc_recurse && (!am_root || !numeric_ids || groupmap))
830 gid = match_gid(gid, &gid_flags);
834 if ((preserve_devices && IS_DEVICE(mode))
835 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
836 if (protocol_version < 28) {
837 if (!(xflags & XMIT_SAME_RDEV_pre28))
838 rdev = (dev_t)read_int(f);
841 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
842 rdev_major = read_varint30(f);
843 if (protocol_version >= 30)
844 rdev_minor = read_varint(f);
845 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
846 rdev_minor = read_byte(f);
848 rdev_minor = read_int(f);
849 rdev = MAKEDEV(rdev_major, rdev_minor);
852 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
854 } else if (protocol_version < 28)
855 rdev = MAKEDEV(0, 0);
858 if (preserve_links && S_ISLNK(mode)) {
859 linkname_len = read_varint30(f) + 1; /* count the '\0' */
860 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
861 rprintf(FERROR, "overflow: linkname_len=%d\n",
863 overflow_exit("recv_file_entry");
866 /* We don't know how much extra room we need to convert
867 * the as-yet-unread symlink data, so let's hope that a
868 * double-size buffer is plenty. */
869 if (sender_symlink_iconv)
873 linkname_len += SYMLINK_PREFIX_LEN;
879 #ifdef SUPPORT_HARD_LINKS
881 if (preserve_hard_links) {
882 if (protocol_version < 28 && S_ISREG(mode))
883 xflags |= XMIT_HLINKED;
884 if (xflags & XMIT_HLINKED)
885 extra_len += (inc_recurse+1) * EXTRA_LEN;
890 /* Directories need an extra int32 for the default ACL. */
891 if (preserve_acls && S_ISDIR(mode))
892 extra_len += EXTRA_LEN;
895 if (always_checksum && S_ISREG(mode))
896 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
898 #if SIZEOF_INT64 >= 8
899 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
900 extra_len += EXTRA_LEN;
902 if (file_length < 0) {
903 rprintf(FERROR, "Offset underflow: file-length is negative\n");
904 exit_cleanup(RERR_UNSUPPORTED);
907 if (inc_recurse && S_ISDIR(mode)) {
908 if (one_file_system) {
909 /* Room to save the dir's device for -x */
910 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
912 pool = dir_flist->file_pool;
914 pool = flist->file_pool;
916 #if EXTRA_ROUNDING > 0
917 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
918 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
921 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
923 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
925 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
927 file = (struct file_struct *)bp;
928 bp += FILE_STRUCT_LEN;
930 memcpy(bp, basename, basename_len);
932 #ifdef SUPPORT_HARD_LINKS
933 if (xflags & XMIT_HLINKED)
934 file->flags |= FLAG_HLINKED;
936 file->modtime = (time_t)modtime;
937 file->len32 = (uint32)file_length;
938 #if SIZEOF_INT64 >= 8
939 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
940 #if SIZEOF_CAPITAL_OFF_T < 8
941 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
942 exit_cleanup(RERR_UNSUPPORTED);
944 file->flags |= FLAG_LENGTH64;
945 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
954 file->flags |= gid_flags;
957 F_NDX(file) = flist->used + flist->ndx_start;
959 if (basename != thisname) {
960 file->dirname = lastdir;
961 F_DEPTH(file) = lastdir_depth + 1;
966 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
968 if (protocol_version >= 30) {
969 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
970 if (xflags & XMIT_TOP_DIR)
971 file->flags |= FLAG_TOP_DIR;
972 file->flags |= FLAG_CONTENT_DIR;
973 } else if (xflags & XMIT_TOP_DIR)
974 file->flags |= FLAG_IMPLIED_DIR;
975 } else if (xflags & XMIT_TOP_DIR) {
976 in_del_hier = recurse;
977 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
978 if (relative_paths && del_hier_name_len > 2
979 && lastname[del_hier_name_len-1] == '.'
980 && lastname[del_hier_name_len-2] == '/')
981 del_hier_name_len -= 2;
982 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
983 } else if (in_del_hier) {
984 if (!relative_paths || !del_hier_name_len
985 || (l1 >= del_hier_name_len
986 && lastname[del_hier_name_len] == '/'))
987 file->flags |= FLAG_CONTENT_DIR;
993 if (preserve_devices && IS_DEVICE(mode)) {
994 uint32 *devp = F_RDEV_P(file);
995 DEV_MAJOR(devp) = major(rdev);
996 DEV_MINOR(devp) = minor(rdev);
1002 if (first_hlink_ndx >= flist->ndx_start) {
1003 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1004 memcpy(bp, F_SYMLINK(first), linkname_len);
1006 if (munge_symlinks) {
1007 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
1008 bp += SYMLINK_PREFIX_LEN;
1009 linkname_len -= SYMLINK_PREFIX_LEN;
1012 if (sender_symlink_iconv) {
1015 alloc_len = linkname_len;
1018 /* Read the symlink data into the end of our double-sized
1019 * buffer and then convert it into the right spot. */
1020 INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
1021 linkname_len - 1, (size_t)-1);
1022 read_sbuf(f, inbuf.buf, inbuf.len);
1023 INIT_XBUF(outbuf, bp, 0, alloc_len);
1025 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
1026 io_error |= IOERR_GENERAL;
1027 rprintf(FERROR_XFER,
1028 "[%s] cannot convert symlink data for: %s (%s)\n",
1029 who_am_i(), full_fname(thisname), strerror(errno));
1030 bp = (char*)file->basename;
1034 bp[outbuf.len] = '\0';
1037 read_sbuf(f, bp, linkname_len - 1);
1038 if (sanitize_paths && !munge_symlinks && *bp)
1039 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1044 #ifdef SUPPORT_HARD_LINKS
1045 if (preserve_hard_links && xflags & XMIT_HLINKED) {
1046 if (protocol_version >= 30) {
1047 if (xflags & XMIT_HLINK_FIRST) {
1048 F_HL_GNUM(file) = flist->ndx_start + flist->used;
1050 F_HL_GNUM(file) = first_hlink_ndx;
1052 static int32 cnt = 0;
1053 struct ht_int64_node *np;
1056 if (protocol_version < 26) {
1060 if (!(xflags & XMIT_SAME_DEV_pre30))
1061 dev = read_longint(f);
1062 ino = read_longint(f);
1064 np = idev_find(dev, ino);
1065 ndx = (int32)(long)np->data - 1;
1068 np->data = (void*)(long)cnt;
1070 F_HL_GNUM(file) = ndx;
1075 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1079 /* Prior to 28, we get a useless set of nulls. */
1082 if (first_hlink_ndx >= flist->ndx_start) {
1083 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1084 memcpy(bp, F_SUM(first), checksum_len);
1086 read_buf(f, bp, checksum_len);
1090 if (preserve_acls && !S_ISLNK(mode))
1091 receive_acl(file, f);
1093 #ifdef SUPPORT_XATTRS
1094 if (preserve_xattrs)
1095 receive_xattr(file, f );
1098 if (S_ISREG(mode) || S_ISLNK(mode))
1099 stats.total_size += file_length;
1104 /* Create a file_struct for a named file by reading its stat() information
1105 * and performing extensive checks against global options.
1107 * Returns a pointer to the new file struct, or NULL if there was an error
1108 * or this file should be excluded.
1110 * Note: Any error (here or in send_file_name) that results in the omission of
1111 * an existent source file from the file list should set
1112 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1113 * destination if --delete is on. */
1114 struct file_struct *make_file(const char *fname, struct file_list *flist,
1115 STRUCT_STAT *stp, int flags, int filter_level)
1117 static char *lastdir;
1118 static int lastdir_len = -1;
1119 struct file_struct *file;
1120 char thisname[MAXPATHLEN];
1121 char linkname[MAXPATHLEN];
1122 int alloc_len, basename_len, linkname_len;
1123 int extra_len = file_extra_cnt * EXTRA_LEN;
1124 const char *basename;
1129 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1130 io_error |= IOERR_GENERAL;
1131 rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1134 clean_fname(thisname, 0);
1136 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1138 if (stp && (S_ISDIR(stp->st_mode) || stp->st_mode == 0)) {
1139 /* This is needed to handle a "symlink/." with a --relative
1140 * dir, or a request to delete a specific file. */
1142 *linkname = '\0'; /* make IBM code checker happy */
1143 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1144 int save_errno = errno;
1145 /* See if file is excluded before reporting an error. */
1146 if (filter_level != NO_FILTERS
1147 && (is_excluded(thisname, 0, filter_level)
1148 || is_excluded(thisname, 1, filter_level))) {
1149 if (ignore_perishable && save_errno != ENOENT)
1150 non_perishable_cnt++;
1153 if (save_errno == ENOENT) {
1154 #ifdef SUPPORT_LINKS
1155 /* When our options tell us to follow a symlink that
1156 * points nowhere, tell the user about the symlink
1157 * instead of giving a "vanished" message. We only
1158 * dereference a symlink if one of the --copy*links
1159 * options was specified, so there's no need for the
1160 * extra lstat() if one of these options isn't on. */
1161 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1162 && x_lstat(thisname, &st, NULL) == 0
1163 && S_ISLNK(st.st_mode)) {
1164 io_error |= IOERR_GENERAL;
1165 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1166 full_fname(thisname));
1170 enum logcode c = am_daemon && protocol_version < 28
1171 ? FERROR : FWARNING;
1172 io_error |= IOERR_VANISHED;
1173 rprintf(c, "file has vanished: %s\n",
1174 full_fname(thisname));
1177 io_error |= IOERR_GENERAL;
1178 rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
1179 full_fname(thisname));
1182 } else if (st.st_mode == 0) {
1183 io_error |= IOERR_GENERAL;
1184 rprintf(FINFO, "skipping file with bogus (zero) st_mode: %s\n",
1185 full_fname(thisname));
1189 if (filter_level == NO_FILTERS)
1192 if (S_ISDIR(st.st_mode)) {
1194 rprintf(FINFO, "skipping directory %s\n", thisname);
1197 /* -x only affects dirs because we need to avoid recursing
1198 * into a mount-point directory, not to avoid copying a
1199 * symlinked file if -L (or similar) was specified. */
1200 if (one_file_system && st.st_dev != filesystem_dev
1201 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1202 if (one_file_system > 1) {
1203 if (INFO_GTE(MOUNT, 1)) {
1205 "[%s] skipping mount-point dir %s\n",
1206 who_am_i(), thisname);
1210 flags |= FLAG_MOUNT_DIR;
1211 flags &= ~FLAG_CONTENT_DIR;
1214 flags &= ~FLAG_CONTENT_DIR;
1216 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1217 if (ignore_perishable)
1218 non_perishable_cnt++;
1222 if (lp_ignore_nonreadable(module_id)) {
1223 #ifdef SUPPORT_LINKS
1224 if (!S_ISLNK(st.st_mode))
1226 if (access(thisname, R_OK) != 0)
1232 /* Only divert a directory in the main transfer. */
1234 if (flist->prev && S_ISDIR(st.st_mode)
1235 && flags & FLAG_DIVERT_DIRS) {
1236 /* Room for parent/sibling/next-child info. */
1237 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1239 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1240 pool = dir_flist->file_pool;
1242 pool = flist->file_pool;
1245 /* Directories need an extra int32 for the default ACL. */
1246 if (preserve_acls && S_ISDIR(st.st_mode))
1247 extra_len += EXTRA_LEN;
1252 if (DEBUG_GTE(FLIST, 2)) {
1253 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1254 who_am_i(), thisname, filter_level);
1257 if ((basename = strrchr(thisname, '/')) != NULL) {
1258 int len = basename++ - thisname;
1259 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1260 lastdir = new_array(char, len + 1);
1261 memcpy(lastdir, thisname, len);
1262 lastdir[len] = '\0';
1266 basename = thisname;
1267 basename_len = strlen(basename) + 1; /* count the '\0' */
1269 #ifdef SUPPORT_LINKS
1270 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1275 #if SIZEOF_CAPITAL_OFF_T >= 8
1276 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1277 extra_len += EXTRA_LEN;
1280 if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
1281 file_checksum(thisname, tmp_sum, st.st_size);
1282 if (sender_keeps_checksum)
1283 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1286 #if EXTRA_ROUNDING > 0
1287 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1288 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1291 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1294 bp = pool_alloc(pool, alloc_len, "make_file");
1296 if (!(bp = new_array(char, alloc_len)))
1297 out_of_memory("make_file");
1300 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1302 file = (struct file_struct *)bp;
1303 bp += FILE_STRUCT_LEN;
1305 memcpy(bp, basename, basename_len);
1307 #ifdef SUPPORT_HARD_LINKS
1308 if (preserve_hard_links && flist && flist->prev) {
1309 if (protocol_version >= 28
1310 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1311 : S_ISREG(st.st_mode)) {
1312 tmp_dev = (int64)st.st_dev + 1;
1313 tmp_ino = (int64)st.st_ino;
1319 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1320 if (IS_DEVICE(st.st_mode)) {
1321 tmp_rdev = st.st_rdev;
1323 } else if (IS_SPECIAL(st.st_mode))
1327 file->flags = flags;
1328 file->modtime = st.st_mtime;
1329 file->len32 = (uint32)st.st_size;
1330 #if SIZEOF_CAPITAL_OFF_T >= 8
1331 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1332 file->flags |= FLAG_LENGTH64;
1333 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1336 file->mode = st.st_mode;
1337 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1338 F_OWNER(file) = st.st_uid;
1339 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1340 F_GROUP(file) = st.st_gid;
1342 if (basename != thisname)
1343 file->dirname = lastdir;
1345 #ifdef SUPPORT_LINKS
1347 memcpy(bp + basename_len, linkname, linkname_len);
1351 F_PATHNAME(file) = pathname;
1353 F_DEPTH(file) = extra_len / EXTRA_LEN;
1355 if (basename_len == 0+1) {
1361 if (sender_keeps_checksum && S_ISREG(st.st_mode))
1362 memcpy(F_SUM(file), tmp_sum, checksum_len);
1365 F_NDX(file) = stats.num_dirs;
1370 /* Only called for temporary file_struct entries created by make_file(). */
1371 void unmake_file(struct file_struct *file)
1373 free(REQ_EXTRA(file, F_DEPTH(file)));
1376 static struct file_struct *send_file_name(int f, struct file_list *flist,
1377 const char *fname, STRUCT_STAT *stp,
1378 int flags, int filter_level)
1380 struct file_struct *file;
1382 file = make_file(fname, flist, stp, flags, filter_level);
1386 if (chmod_modes && !S_ISLNK(file->mode) && file->mode)
1387 file->mode = tweak_mode(file->mode, chmod_modes);
1390 char fbuf[MAXPATHLEN];
1391 #ifdef SUPPORT_LINKS
1392 const char *symlink_name;
1395 char symlink_buf[MAXPATHLEN];
1398 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1403 #ifdef SUPPORT_LINKS
1404 if (preserve_links && S_ISLNK(file->mode)) {
1405 symlink_name = F_SYMLINK(file);
1406 symlink_len = strlen(symlink_name);
1407 if (symlink_len == 0) {
1408 io_error |= IOERR_GENERAL;
1410 rprintf(FERROR_XFER,
1411 "skipping symlink with 0-length value: %s\n",
1416 symlink_name = NULL;
1422 if (ic_send != (iconv_t)-1) {
1425 INIT_CONST_XBUF(outbuf, fbuf);
1427 if (file->dirname) {
1428 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1429 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1430 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1433 fbuf[outbuf.len++] = '/';
1436 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1437 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1439 io_error |= IOERR_GENERAL;
1440 rprintf(FERROR_XFER,
1441 "[%s] cannot convert filename: %s (%s)\n",
1442 who_am_i(), f_name(file, fbuf), strerror(errno));
1445 fbuf[outbuf.len] = '\0';
1447 #ifdef SUPPORT_LINKS
1448 if (symlink_len && sender_symlink_iconv) {
1449 INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
1450 INIT_CONST_XBUF(outbuf, symlink_buf);
1451 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1452 io_error |= IOERR_GENERAL;
1454 rprintf(FERROR_XFER,
1455 "[%s] cannot convert symlink data for: %s (%s)\n",
1456 who_am_i(), full_fname(fbuf), strerror(errno));
1459 symlink_buf[outbuf.len] = '\0';
1461 symlink_name = symlink_buf;
1462 symlink_len = outbuf.len;
1470 if (preserve_acls && !S_ISLNK(file->mode)) {
1471 sx.st.st_mode = file->mode;
1472 if (get_acl(fname, &sx) < 0) {
1473 io_error |= IOERR_GENERAL;
1478 #ifdef SUPPORT_XATTRS
1479 if (preserve_xattrs) {
1480 sx.st.st_mode = file->mode;
1481 if (get_xattr(fname, &sx) < 0) {
1482 io_error |= IOERR_GENERAL;
1488 send_file_entry(f, fbuf, file,
1489 #ifdef SUPPORT_LINKS
1490 symlink_name, symlink_len,
1492 flist->used, flist->ndx_start);
1495 if (preserve_acls && !S_ISLNK(file->mode)) {
1500 #ifdef SUPPORT_XATTRS
1501 if (preserve_xattrs) {
1502 F_XATTR(file) = send_xattr(&sx, f);
1508 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1510 flist_expand(flist, 1);
1511 flist->files[flist->used++] = file;
1516 static void send_if_directory(int f, struct file_list *flist,
1517 struct file_struct *file,
1518 char *fbuf, unsigned int ol,
1521 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1523 if (S_ISDIR(file->mode)
1524 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1526 unsigned int len = strlen(fbuf);
1527 if (len > 1 && fbuf[len-1] == '/')
1529 if (len >= MAXPATHLEN - 1) {
1530 io_error |= IOERR_GENERAL;
1531 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1535 save_filters = push_local_filters(fbuf, len);
1536 send_directory(f, flist, fbuf, len, flags);
1537 pop_local_filters(save_filters);
1544 static int file_compare(const void *file1, const void *file2)
1546 return f_name_cmp(*(struct file_struct **)file1,
1547 *(struct file_struct **)file2);
1550 /* The guts of a merge-sort algorithm. This was derived from the glibc
1551 * version, but I (Wayne) changed the merge code to do less copying and
1552 * to require only half the amount of temporary memory. */
1553 static void fsort_tmp(struct file_struct **fp, size_t num,
1554 struct file_struct **tmp)
1556 struct file_struct **f1, **f2, **t;
1565 fsort_tmp(f1, n1, tmp);
1567 fsort_tmp(f2, n2, tmp);
1569 while (f_name_cmp(*f1, *f2) <= 0) {
1576 memcpy(t, f1, n1 * PTR_SIZE);
1578 *f1++ = *f2++, n2--;
1580 while (n1 > 0 && n2 > 0) {
1581 if (f_name_cmp(*t, *f2) <= 0)
1584 *f1++ = *f2++, n2--;
1588 memcpy(f1, t, n1 * PTR_SIZE);
1591 /* This file-struct sorting routine makes sure that any identical names in
1592 * the file list stay in the same order as they were in the original list.
1593 * This is particularly vital in inc_recurse mode where we expect a sort
1594 * on the flist to match the exact order of a sort on the dir_flist. */
1595 static void fsort(struct file_struct **fp, size_t num)
1601 qsort(fp, num, PTR_SIZE, file_compare);
1603 struct file_struct **tmp = new_array(struct file_struct *,
1605 fsort_tmp(fp, num, tmp);
1610 /* We take an entire set of sibling dirs from the sorted flist and link them
1611 * into the tree, setting the appropriate parent/child/sibling pointers. */
1612 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1617 int32 *parent_dp = parent_ndx < 0 ? NULL
1618 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1620 flist_expand(dir_flist, dir_cnt);
1621 dir_flist->sorted = dir_flist->files;
1623 for (i = 0; dir_cnt; i++) {
1624 struct file_struct *file = from_flist->sorted[i];
1626 if (!S_ISDIR(file->mode))
1629 dir_flist->files[dir_flist->used++] = file;
1632 if (file->basename[0] == '.' && file->basename[1] == '\0')
1636 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1638 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1640 send_dir_ndx = dir_flist->used - 1;
1642 dp = F_DIR_NODE_P(file);
1643 DIR_PARENT(dp) = parent_ndx;
1644 DIR_FIRST_CHILD(dp) = -1;
1647 DIR_NEXT_SIBLING(dp) = -1;
1650 static void interpret_stat_error(const char *fname, int is_dir)
1652 if (errno == ENOENT) {
1653 io_error |= IOERR_VANISHED;
1654 rprintf(FWARNING, "%s has vanished: %s\n",
1655 is_dir ? "directory" : "file", full_fname(fname));
1657 io_error |= IOERR_GENERAL;
1658 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1663 /* This function is normally called by the sender, but the receiving side also
1664 * calls it from get_dirlist() with f set to -1 so that we just construct the
1665 * file list in memory without sending it over the wire. Also, get_dirlist()
1666 * might call this with f set to -2, which also indicates that local filter
1667 * rules should be ignored. */
1668 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1675 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1676 int start = flist->used;
1677 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1679 assert(flist != NULL);
1681 if (!(d = opendir(fbuf))) {
1682 if (errno == ENOENT) {
1683 if (am_sender) /* Can abuse this for vanished error w/ENOENT: */
1684 interpret_stat_error(fbuf, True);
1687 io_error |= IOERR_GENERAL;
1688 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1693 if (len != 1 || *fbuf != '/')
1696 remainder = MAXPATHLEN - (p - fbuf);
1698 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1699 char *dname = d_name(di);
1700 if (dname[0] == '.' && (dname[1] == '\0'
1701 || (dname[1] == '.' && dname[2] == '\0')))
1703 if (strlcpy(p, dname, remainder) >= remainder) {
1704 io_error |= IOERR_GENERAL;
1705 rprintf(FERROR_XFER,
1706 "cannot send long-named file %s\n",
1710 if (dname[0] == '\0') {
1711 io_error |= IOERR_GENERAL;
1712 rprintf(FERROR_XFER,
1713 "cannot send file with empty name in %s\n",
1718 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1724 io_error |= IOERR_GENERAL;
1725 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1730 if (f >= 0 && recurse && !divert_dirs) {
1731 int i, end = flist->used - 1;
1732 /* send_if_directory() bumps flist->used, so use "end". */
1733 for (i = start; i <= end; i++)
1734 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1738 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1739 char *start, char *limit, int flags, char name_type)
1741 static char lastpath[MAXPATHLEN] = "";
1742 static int lastpath_len = 0;
1743 static struct file_struct *lastpath_struct = NULL;
1744 struct file_struct *file;
1745 item_list *relname_list;
1746 relnamecache **rnpp;
1747 int len, need_new_dir, depth = 0;
1748 filter_rule_list save_filter_list = filter_list;
1750 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1751 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1754 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1755 && lastpath_len == limit - fname
1756 && strncmp(lastpath, fname, lastpath_len) == 0)
1761 char *tp = fname, *lp = lastpath;
1762 /* Skip any initial directories in our path that we
1763 * have in common with lastpath. */
1764 assert(start == fname);
1765 for ( ; ; tp++, lp++) {
1767 if (*lp == '/' || *lp == '\0')
1782 int save_copy_links = copy_links;
1783 int save_xfer_dirs = xfer_dirs;
1786 copy_links = xfer_dirs = 1;
1790 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1792 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1794 if (!inc_recurse && file && S_ISDIR(file->mode))
1795 change_local_filter_dir(fname, strlen(fname), depth);
1799 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1801 if (file && !S_ISDIR(file->mode))
1803 lastpath_struct = file;
1804 } else if (file && S_ISDIR(file->mode))
1805 change_local_filter_dir(fname, strlen(fname), ++depth);
1807 strlcpy(lastpath, fname, sizeof lastpath);
1808 lastpath_len = limit - fname;
1812 copy_links = save_copy_links;
1813 xfer_dirs = save_xfer_dirs;
1819 if (!lastpath_struct)
1820 goto done; /* dir must have vanished */
1822 len = strlen(limit+1);
1823 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1824 if (!relname_list) {
1825 if (!(relname_list = new0(item_list)))
1826 out_of_memory("send_implied_dirs");
1827 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1829 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1830 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1831 out_of_memory("send_implied_dirs");
1832 (*rnpp)->name_type = name_type;
1833 strlcpy((*rnpp)->fname, limit+1, len + 1);
1836 filter_list = save_filter_list;
1839 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1841 char fbuf[MAXPATHLEN];
1842 item_list *relname_list;
1843 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1847 dlen = strlen(fbuf);
1849 if (!change_pathname(file, NULL, 0))
1850 exit_cleanup(RERR_FILESELECT);
1852 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1854 if (file->flags & FLAG_CONTENT_DIR) {
1855 if (one_file_system) {
1857 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1858 interpret_stat_error(fbuf, True);
1861 filesystem_dev = st.st_dev;
1863 send_directory(f, flist, fbuf, dlen, flags);
1866 if (!relative_paths)
1869 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1873 for (j = 0; j < relname_list->count; j++) {
1875 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1876 char name_type = rnp->name_type;
1879 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1881 if (len >= (int)sizeof fbuf)
1882 continue; /* Impossible... */
1884 slash = strchr(fbuf+dlen+1, '/');
1886 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1890 if (name_type != NORMAL_NAME) {
1892 if (link_stat(fbuf, &st, 1) != 0) {
1893 interpret_stat_error(fbuf, True);
1896 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1898 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1904 void send_extra_file_list(int f, int at_least)
1906 struct file_list *flist;
1909 int save_io_error = io_error;
1915 at_least = file_total - file_old_total + 1;
1917 /* Keep sending data until we have the requested number of
1918 * files in the upcoming file-lists. */
1919 while (file_total - file_old_total < at_least) {
1920 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1921 int dir_ndx, dstart = stats.num_dirs;
1922 const char *pathname = F_PATHNAME(file);
1925 flist = flist_new(0, "send_extra_file_list");
1926 start_write = stats.total_written;
1929 dir_ndx = F_NDX(file);
1931 dir_ndx = send_dir_ndx;
1932 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1933 flist->parent_ndx = dir_ndx;
1935 send1extra(f, file, flist);
1936 prev_flags = file->flags;
1937 dp = F_DIR_NODE_P(file);
1939 /* If there are any duplicate directory names that follow, we
1940 * send all the dirs together in one file-list. The dir_flist
1941 * tree links all the child subdirs onto the last dup dir. */
1942 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1943 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1944 send_dir_ndx = dir_ndx;
1945 file = dir_flist->sorted[dir_ndx];
1946 /* Try to avoid some duplicate scanning of identical dirs. */
1947 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1948 file->flags &= ~FLAG_CONTENT_DIR;
1949 send1extra(f, file, flist);
1950 prev_flags = file->flags;
1951 dp = F_DIR_NODE_P(file);
1954 if (protocol_version < 31 || io_error == save_io_error || ignore_errors)
1957 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
1958 write_varint(f, io_error);
1961 if (need_unsorted_flist) {
1962 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1963 out_of_memory("send_extra_file_list");
1964 memcpy(flist->sorted, flist->files,
1965 flist->used * sizeof (struct file_struct*));
1967 flist->sorted = flist->files;
1969 flist_sort_and_clean(flist, 0);
1971 add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
1972 flist_done_allocating(flist);
1974 file_total += flist->used;
1975 stats.flist_size += stats.total_written - start_write;
1976 stats.num_files += flist->used;
1977 if (DEBUG_GTE(FLIST, 3))
1978 output_flist(flist);
1980 if (DIR_FIRST_CHILD(dp) >= 0) {
1981 send_dir_ndx = DIR_FIRST_CHILD(dp);
1984 while (DIR_NEXT_SIBLING(dp) < 0) {
1985 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1986 write_ndx(f, NDX_FLIST_EOF);
1988 change_local_filter_dir(NULL, 0, 0);
1992 file = dir_flist->sorted[send_dir_ndx];
1993 dp = F_DIR_NODE_P(file);
1995 send_dir_ndx = DIR_NEXT_SIBLING(dp);
2000 if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
2001 send_msg_int(MSG_IO_ERROR, io_error);
2004 struct file_list *send_file_list(int f, int argc, char *argv[])
2006 static const char *lastdir;
2007 static int lastdir_len = -1;
2011 struct file_list *flist;
2012 struct timeval start_tv, end_tv;
2015 int disable_buffering;
2016 int flags = recurse ? FLAG_CONTENT_DIR : 0;
2017 int reading_remotely = filesfrom_host != NULL;
2018 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
2020 | (filesfrom_convert ? RL_CONVERT : 0)
2022 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
2023 int implied_dot_dir = 0;
2025 rprintf(FLOG, "building file list\n");
2026 if (show_filelist_p())
2027 start_filelist_progress("building file list");
2028 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2029 rprintf(FCLIENT, "sending incremental file list\n");
2031 start_write = stats.total_written;
2032 gettimeofday(&start_tv, NULL);
2034 if (relative_paths && protocol_version >= 30)
2035 implied_dirs = 1; /* We send flagged implied dirs */
2037 #ifdef SUPPORT_HARD_LINKS
2038 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2042 flist = cur_flist = flist_new(0, "send_file_list");
2044 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2045 flags |= FLAG_DIVERT_DIRS;
2047 dir_flist = cur_flist;
2049 disable_buffering = io_start_buffering_out(f);
2050 if (filesfrom_fd >= 0) {
2051 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2052 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2053 full_fname(argv[0]));
2054 exit_cleanup(RERR_FILESELECT);
2060 orig_dir = strdup(curr_dir);
2063 char fbuf[MAXPATHLEN], *fn, name_type;
2066 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2068 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2072 strlcpy(fbuf, *argv++, MAXPATHLEN);
2074 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2078 if (relative_paths) {
2079 /* We clean up fbuf below. */
2080 name_type = NORMAL_NAME;
2081 } else if (!len || fbuf[len - 1] == '/') {
2082 if (len == 2 && fbuf[0] == '.') {
2083 /* Turn "./" into just "." rather than "./." */
2086 if (len + 1 >= MAXPATHLEN)
2087 overflow_exit("send_file_list");
2091 name_type = DOTDIR_NAME;
2092 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2093 && (len == 2 || fbuf[len-3] == '/')) {
2094 if (len + 2 >= MAXPATHLEN)
2095 overflow_exit("send_file_list");
2099 name_type = DOTDIR_NAME;
2100 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2101 name_type = DOTDIR_NAME;
2103 name_type = NORMAL_NAME;
2107 if (!relative_paths) {
2108 p = strrchr(fbuf, '/');
2115 len -= p - fbuf + 1;
2120 if ((p = strstr(fbuf, "/./")) != NULL) {
2126 clean_fname(dir, 0);
2132 *--fn = '\0'; /* ensure room for '.' */
2135 /* A leading ./ can be used in relative mode to affect
2136 * the dest dir without its name being in the path. */
2137 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
2138 send_file_name(f, flist, ".", NULL,
2139 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
2141 implied_dot_dir = 1;
2143 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2144 | CFN_DROP_TRAILING_DOT_DIR);
2149 name_type = DOTDIR_NAME;
2150 } else if (fn[0] == '.')
2151 name_type = DOTDIR_NAME;
2152 } else if (fn[len-1] == '/') {
2154 if (len == 1 && *fn == '.')
2155 name_type = DOTDIR_NAME;
2157 name_type = SLASH_ENDING_NAME;
2159 /* Reject a ".." dir in the active part of the path. */
2160 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2161 if ((p[2] == '/' || p[2] == '\0')
2162 && (p == fn || p[-1] == '/')) {
2164 "found \"..\" dir in relative path: %s\n",
2166 exit_cleanup(RERR_SYNTAX);
2174 name_type = DOTDIR_NAME;
2177 dirlen = dir ? strlen(dir) : 0;
2178 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2179 if (!change_pathname(NULL, dir, -dirlen))
2182 lastdir_len = pathname_len;
2183 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2187 memmove(fbuf, fn, len + 1);
2189 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2190 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2191 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2192 if (errno != ENOENT || missing_args == 0) {
2193 /* This is a transfer error, but inhibit deletion
2194 * only if we might be omitting an existing file. */
2195 if (errno != ENOENT)
2196 io_error |= IOERR_GENERAL;
2197 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2200 } else if (missing_args == 1) {
2201 /* Just ignore the arg. */
2203 } else /* (missing_args == 2) */ {
2204 /* Send the arg as a "missing" entry with
2205 * mode 0, which tells the generator to delete it. */
2206 memset(&st, 0, sizeof st);
2210 /* A dot-dir should not be excluded! */
2211 if (name_type != DOTDIR_NAME && st.st_mode != 0
2212 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2215 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2216 rprintf(FINFO, "skipping directory %s\n", fbuf);
2220 if (inc_recurse && relative_paths && *fbuf) {
2221 if ((p = strchr(fbuf+1, '/')) != NULL) {
2222 if (p - fbuf == 1 && *fbuf == '.') {
2223 if ((fn = strchr(p+1, '/')) != NULL)
2227 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2231 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2232 /* Send the implied directories at the start of the
2233 * source spec, so we get their permissions right. */
2234 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2237 if (one_file_system)
2238 filesystem_dev = st.st_dev;
2240 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2241 struct file_struct *file;
2242 file = send_file_name(f, flist, fbuf, &st,
2243 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2248 if (name_type == DOTDIR_NAME) {
2249 if (send_dir_depth < 0) {
2251 change_local_filter_dir(fbuf, len, send_dir_depth);
2253 send_directory(f, flist, fbuf, len, flags);
2256 send_if_directory(f, flist, file, fbuf, len, flags);
2258 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2261 gettimeofday(&end_tv, NULL);
2262 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2263 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2264 if (stats.flist_buildtime == 0)
2265 stats.flist_buildtime = 1;
2268 /* Indicate end of file list */
2269 if (protocol_version < 31 || io_error == 0 || ignore_errors)
2272 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2273 write_varint(f, io_error);
2276 #ifdef SUPPORT_HARD_LINKS
2277 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2281 if (show_filelist_p())
2282 finish_filelist_progress(flist);
2284 gettimeofday(&end_tv, NULL);
2285 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2286 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2288 /* When converting names, both sides keep an unsorted file-list array
2289 * because the names will differ on the sending and receiving sides
2290 * (both sides will use the unsorted index number for each item). */
2292 /* Sort the list without removing any duplicates. This allows the
2293 * receiving side to ask for whatever name it kept. For incremental
2294 * recursion mode, the sender marks duplicate dirs so that it can
2295 * send them together in a single file-list. */
2296 if (need_unsorted_flist) {
2297 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2298 out_of_memory("send_file_list");
2299 memcpy(flist->sorted, flist->files,
2300 flist->used * sizeof (struct file_struct*));
2302 flist->sorted = flist->files;
2303 flist_sort_and_clean(flist, 0);
2304 file_total += flist->used;
2306 if (numeric_ids <= 0 && !inc_recurse)
2311 /* send the io_error flag */
2312 if (protocol_version < 30)
2313 write_int(f, ignore_errors ? 0 : io_error);
2314 else if (io_error && protocol_version == 30 && !ignore_errors)
2315 send_msg_int(MSG_IO_ERROR, io_error);
2317 if (disable_buffering)
2318 io_end_buffering_out();
2320 stats.flist_size = stats.total_written - start_write;
2321 stats.num_files = flist->used;
2323 if (DEBUG_GTE(FLIST, 3))
2324 output_flist(flist);
2326 if (DEBUG_GTE(FLIST, 2))
2327 rprintf(FINFO, "send_file_list done\n");
2331 add_dirs_to_tree(-1, flist, stats.num_dirs);
2332 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2333 flist->parent_ndx = -1;
2334 flist_done_allocating(flist);
2335 if (send_dir_ndx < 0) {
2336 write_ndx(f, NDX_FLIST_EOF);
2339 else if (file_total == 1) {
2340 /* If we're creating incremental file-lists and there
2341 * was just 1 item in the first file-list, send 1 more
2342 * file-list to check if this is a 1-file xfer. */
2343 send_extra_file_list(f, 1);
2351 struct file_list *recv_file_list(int f)
2353 struct file_list *flist;
2358 if (show_filelist_p())
2359 start_filelist_progress("receiving file list");
2360 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2361 rprintf(FCLIENT, "receiving incremental file list\n");
2362 rprintf(FLOG, "receiving file list\n");
2364 parse_name_map(usermap, True);
2366 parse_name_map(groupmap, False);
2369 start_read = stats.total_read;
2371 #ifdef SUPPORT_HARD_LINKS
2372 if (preserve_hard_links && !first_flist)
2376 flist = flist_new(0, "recv_file_list");
2379 if (flist->ndx_start == 1)
2380 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2381 dstart = dir_flist->used;
2387 while ((flags = read_byte(f)) != 0) {
2388 struct file_struct *file;
2390 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2391 flags |= read_byte(f) << 8;
2393 if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
2395 if (protocol_version < 31) {
2396 rprintf(FERROR, "Invalid flist flag: %x\n", flags);
2397 exit_cleanup(RERR_PROTOCOL);
2399 err = read_varint(f);
2405 flist_expand(flist, 1);
2406 file = recv_file_entry(flist, flags, f);
2408 if (S_ISREG(file->mode)) {
2409 /* Already counted */
2410 } else if (S_ISDIR(file->mode)) {
2412 flist_expand(dir_flist, 1);
2413 dir_flist->files[dir_flist->used++] = file;
2416 } else if (S_ISLNK(file->mode))
2417 stats.num_symlinks++;
2418 else if (IS_DEVICE(file->mode))
2419 stats.num_symlinks++;
2421 stats.num_specials++;
2423 flist->files[flist->used++] = file;
2425 maybe_emit_filelist_progress(flist->used);
2427 if (DEBUG_GTE(FLIST, 2)) {
2428 char *name = f_name(file, NULL);
2429 rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
2432 file_total += flist->used;
2434 if (DEBUG_GTE(FLIST, 2))
2435 rprintf(FINFO, "received %d names\n", flist->used);
2437 if (show_filelist_p())
2438 finish_filelist_progress(flist);
2440 if (need_unsorted_flist) {
2441 /* Create an extra array of index pointers that we can sort for
2442 * the generator's use (for wading through the files in sorted
2443 * order and for calling flist_find()). We keep the "files"
2444 * list unsorted for our exchange of index numbers with the
2445 * other side (since their names may not sort the same). */
2446 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2447 out_of_memory("recv_file_list");
2448 memcpy(flist->sorted, flist->files,
2449 flist->used * sizeof (struct file_struct*));
2450 if (inc_recurse && dir_flist->used > dstart) {
2451 static int dir_flist_malloced = 0;
2452 if (dir_flist_malloced < dir_flist->malloced) {
2453 dir_flist->sorted = realloc_array(dir_flist->sorted,
2454 struct file_struct *,
2455 dir_flist->malloced);
2456 dir_flist_malloced = dir_flist->malloced;
2458 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2459 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2460 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2463 flist->sorted = flist->files;
2464 if (inc_recurse && dir_flist->used > dstart) {
2465 dir_flist->sorted = dir_flist->files;
2466 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2471 flist_done_allocating(flist);
2473 recv_id_list(f, flist);
2477 flist_sort_and_clean(flist, relative_paths);
2479 if (protocol_version < 30) {
2480 /* Recv the io_error flag */
2481 int err = read_int(f);
2484 } else if (inc_recurse && flist->ndx_start == 1) {
2485 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2486 flist->parent_ndx = -1;
2489 if (DEBUG_GTE(FLIST, 3))
2490 output_flist(flist);
2492 if (DEBUG_GTE(FLIST, 2))
2493 rprintf(FINFO, "recv_file_list done\n");
2495 stats.flist_size += stats.total_read - start_read;
2496 stats.num_files += flist->used;
2501 /* This is only used once by the receiver if the very first file-list
2502 * has exactly one item in it. */
2503 void recv_additional_file_list(int f)
2505 struct file_list *flist;
2506 int ndx = read_ndx(f);
2507 if (ndx == NDX_FLIST_EOF) {
2509 change_local_filter_dir(NULL, 0, 0);
2511 ndx = NDX_FLIST_OFFSET - ndx;
2512 if (ndx < 0 || ndx >= dir_flist->used) {
2513 ndx = NDX_FLIST_OFFSET - ndx;
2515 "[%s] Invalid dir index: %d (%d - %d)\n",
2516 who_am_i(), ndx, NDX_FLIST_OFFSET,
2517 NDX_FLIST_OFFSET - dir_flist->used + 1);
2518 exit_cleanup(RERR_PROTOCOL);
2520 if (DEBUG_GTE(FLIST, 3)) {
2521 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2524 flist = recv_file_list(f);
2525 flist->parent_ndx = ndx;
2529 /* Search for an identically-named item in the file list. Note that the
2530 * items must agree in their directory-ness, or no match is returned. */
2531 int flist_find(struct file_list *flist, struct file_struct *f)
2533 int low = flist->low, high = flist->high;
2534 int diff, mid, mid_up;
2536 while (low <= high) {
2537 mid = (low + high) / 2;
2538 if (F_IS_ACTIVE(flist->sorted[mid]))
2541 /* Scan for the next non-empty entry using the cached
2542 * distance values. If the value isn't fully up-to-
2543 * date, update it. */
2544 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2545 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2547 mid_up += F_DEPTH(flist->sorted[mid_up]);
2548 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2549 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2551 if (mid_up > high) {
2552 /* If there's nothing left above us, set high to
2553 * a non-empty entry below us and continue. */
2554 high = mid - (int)flist->sorted[mid]->len32;
2555 if (!F_IS_ACTIVE(flist->sorted[high])) {
2557 high -= (int)flist->sorted[high]->len32;
2558 } while (!F_IS_ACTIVE(flist->sorted[high]));
2559 flist->sorted[mid]->len32 = mid - high;
2564 diff = f_name_cmp(flist->sorted[mid_up], f);
2566 if (protocol_version < 29
2567 && S_ISDIR(flist->sorted[mid_up]->mode)
2568 != S_ISDIR(f->mode))
2580 /* Search for an identically-named item in the file list. Differs from
2581 * flist_find in that an item that agrees with "f" in directory-ness is
2582 * preferred but one that does not is still found. */
2583 int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
2588 /* First look for an item that agrees in directory-ness. */
2589 ndx = flist_find(flist, f);
2593 /* Temporarily flip f->mode to look for an item of opposite
2594 * directory-ness. */
2595 save_mode = f->mode;
2596 f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
2597 ndx = flist_find(flist, f);
2598 f->mode = save_mode;
2603 * Free up any resources a file_struct has allocated
2604 * and clear the file.
2606 void clear_file(struct file_struct *file)
2608 /* The +1 zeros out the first char of the basename. */
2609 memset(file, 0, FILE_STRUCT_LEN + 1);
2610 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2611 * entry. Likewise for len32 in the opposite direction. We assume
2612 * that we're alone for now since flist_find() will adjust the counts
2613 * it runs into that aren't up-to-date. */
2614 file->len32 = F_DEPTH(file) = 1;
2617 /* Allocate a new file list. */
2618 struct file_list *flist_new(int flags, char *msg)
2620 struct file_list *flist;
2622 if (!(flist = new0(struct file_list)))
2625 if (flags & FLIST_TEMP) {
2626 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2631 /* This is a doubly linked list with prev looping back to
2632 * the end of the list, but the last next pointer is NULL. */
2634 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2637 if (!flist->file_pool)
2640 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2642 first_flist = cur_flist = flist->prev = flist;
2644 struct file_list *prev = first_flist->prev;
2646 flist->file_pool = first_flist->file_pool;
2648 flist->ndx_start = prev->ndx_start + prev->used + 1;
2649 flist->flist_num = prev->flist_num + 1;
2652 prev->next = first_flist->prev = flist;
2654 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2661 /* Free up all elements in a flist. */
2662 void flist_free(struct file_list *flist)
2665 /* Was FLIST_TEMP dir-list. */
2666 } else if (flist == flist->prev) {
2667 first_flist = cur_flist = NULL;
2671 if (flist == cur_flist)
2672 cur_flist = flist->next;
2673 if (flist == first_flist)
2674 first_flist = first_flist->next;
2676 flist->prev->next = flist->next;
2678 flist->next = first_flist;
2680 flist->next->prev = flist->prev;
2681 file_total -= flist->used;
2685 if (!flist->prev || !flist_cnt)
2686 pool_destroy(flist->file_pool);
2688 pool_free_old(flist->file_pool, flist->pool_boundary);
2690 if (flist->sorted && flist->sorted != flist->files)
2691 free(flist->sorted);
2696 /* This routine ensures we don't have any duplicate names in our file list.
2697 * duplicate names can cause corruption because of the pipelining. */
2698 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2700 char fbuf[MAXPATHLEN];
2705 if (flist->used == 0) {
2711 fsort(flist->sorted, flist->used);
2713 if (!am_sender || inc_recurse) {
2714 for (i = prev_i = 0; i < flist->used; i++) {
2715 if (F_IS_ACTIVE(flist->sorted[i])) {
2720 flist->low = prev_i;
2722 i = prev_i = flist->used - 1;
2726 while (++i < flist->used) {
2728 struct file_struct *file = flist->sorted[i];
2730 if (!F_IS_ACTIVE(file))
2732 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2734 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2735 int save_mode = file->mode;
2736 /* Make sure that this directory doesn't duplicate a
2737 * non-directory earlier in the list. */
2738 flist->high = prev_i;
2739 file->mode = S_IFREG;
2740 j = flist_find(flist, file);
2741 file->mode = save_mode;
2746 /* If one is a dir and the other is not, we want to
2747 * keep the dir because it might have contents in the
2748 * list. Otherwise keep the first one. */
2749 if (S_ISDIR(file->mode)) {
2750 struct file_struct *fp = flist->sorted[j];
2751 if (!S_ISDIR(fp->mode))
2755 file->flags |= FLAG_DUPLICATE;
2756 else { /* Make sure we merge our vital flags. */
2757 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2758 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2766 if (DEBUG_GTE(DUP, 1)) {
2768 "removing duplicate name %s from file list (%d)\n",
2769 f_name(file, fbuf), drop + flist->ndx_start);
2771 clear_file(flist->sorted[drop]);
2775 if (flist->low == drop) {
2777 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2786 flist->high = prev_i;
2789 /* We need to strip off the leading slashes for relative
2790 * paths, but this must be done _after_ the sorting phase. */
2791 for (i = flist->low; i <= flist->high; i++) {
2792 struct file_struct *file = flist->sorted[i];
2796 while (*file->dirname == '/')
2798 if (!*file->dirname)
2799 file->dirname = NULL;
2803 if (prune_empty_dirs && !am_sender) {
2804 int j, prev_depth = 0;
2806 prev_i = 0; /* It's OK that this isn't really true. */
2808 for (i = flist->low; i <= flist->high; i++) {
2809 struct file_struct *fp, *file = flist->sorted[i];
2811 /* This temporarily abuses the F_DEPTH() value for a
2812 * directory that is in a chain that might get pruned.
2813 * We restore the old value if it gets a reprieve. */
2814 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2815 /* Dump empty dirs when coming back down. */
2816 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2817 fp = flist->sorted[prev_i];
2818 if (F_DEPTH(fp) >= 0)
2820 prev_i = -F_DEPTH(fp)-1;
2823 prev_depth = F_DEPTH(file);
2824 if (is_excluded(f_name(file, fbuf), 1,
2826 /* Keep dirs through this dir. */
2827 for (j = prev_depth-1; ; j--) {
2828 fp = flist->sorted[prev_i];
2829 if (F_DEPTH(fp) >= 0)
2831 prev_i = -F_DEPTH(fp)-1;
2835 F_DEPTH(file) = -prev_i-1;
2838 /* Keep dirs through this non-dir. */
2839 for (j = prev_depth; ; j--) {
2840 fp = flist->sorted[prev_i];
2841 if (F_DEPTH(fp) >= 0)
2843 prev_i = -F_DEPTH(fp)-1;
2848 /* Dump all remaining empty dirs. */
2850 struct file_struct *fp = flist->sorted[prev_i];
2851 if (F_DEPTH(fp) >= 0)
2853 prev_i = -F_DEPTH(fp)-1;
2857 for (i = flist->low; i <= flist->high; i++) {
2858 if (F_IS_ACTIVE(flist->sorted[i]))
2862 for (i = flist->high; i >= flist->low; i--) {
2863 if (F_IS_ACTIVE(flist->sorted[i]))
2870 static void output_flist(struct file_list *flist)
2872 char uidbuf[16], gidbuf[16], depthbuf[16];
2873 struct file_struct *file;
2874 const char *root, *dir, *slash, *name, *trail;
2875 const char *who = who_am_i();
2878 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2879 who, flist->ndx_start, flist->used, flist->low, flist->high);
2880 for (i = 0; i < flist->used; i++) {
2881 file = flist->files[i];
2882 if ((am_root || am_sender) && uid_ndx) {
2883 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2888 static char parens[] = "(\0)\0\0\0";
2889 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2890 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2891 pp, F_GROUP(file), pp + 2);
2895 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2896 if (F_IS_ACTIVE(file)) {
2897 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2898 if ((dir = file->dirname) == NULL)
2902 name = file->basename;
2903 trail = S_ISDIR(file->mode) ? "/" : "";
2905 root = dir = slash = name = trail = "";
2907 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
2908 who, i + flist->ndx_start,
2909 root, dir, slash, name, trail,
2910 (int)file->mode, comma_num(F_LENGTH(file)),
2911 uidbuf, gidbuf, file->flags);
2915 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2916 enum fnc_type { t_PATH, t_ITEM };
2918 static int found_prefix;
2920 /* Compare the names of two file_struct entities, similar to how strcmp()
2921 * would do if it were operating on the joined strings.
2923 * Some differences beginning with protocol_version 29: (1) directory names
2924 * are compared with an assumed trailing slash so that they compare in a
2925 * way that would cause them to sort immediately prior to any content they
2926 * may have; (2) a directory of any name compares after a non-directory of
2927 * any name at the same depth; (3) a directory with name "." compares prior
2928 * to anything else. These changes mean that a directory and a non-dir
2929 * with the same name will not compare as equal (protocol_version >= 29).
2931 * The dirname component can be an empty string, but the basename component
2932 * cannot (and never is in the current codebase). The basename component
2933 * may be NULL (for a removed item), in which case it is considered to be
2934 * after any existing item. */
2935 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2938 const uchar *c1, *c2;
2939 enum fnc_state state1, state2;
2940 enum fnc_type type1, type2;
2941 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2943 if (!f1 || !F_IS_ACTIVE(f1)) {
2944 if (!f2 || !F_IS_ACTIVE(f2))
2948 if (!f2 || !F_IS_ACTIVE(f2))
2951 c1 = (uchar*)f1->dirname;
2952 c2 = (uchar*)f2->dirname;
2956 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2957 c1 = (const uchar*)f1->basename;
2958 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2960 state1 = s_TRAILING;
2969 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2970 c2 = (const uchar*)f2->basename;
2971 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2973 state2 = s_TRAILING;
2983 return type1 == t_PATH ? 1 : -1;
2993 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2994 c1 = (const uchar*)f1->basename;
2995 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2997 state1 = s_TRAILING;
3003 state1 = s_TRAILING;
3004 if (type1 == t_PATH) {
3013 if (*c2 && type1 != type2)
3014 return type1 == t_PATH ? 1 : -1;
3023 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3024 c2 = (const uchar*)f2->basename;
3025 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3027 state2 = s_TRAILING;
3033 state2 = s_TRAILING;
3034 if (type2 == t_PATH) {
3047 return type1 == t_PATH ? 1 : -1;
3049 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
3054 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
3055 * not match if f2's basename is not an exact match of a path element in f1.
3056 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
3057 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
3061 return found_prefix;
3064 char *f_name_buf(void)
3066 static char names[5][MAXPATHLEN];
3067 static unsigned int n;
3069 n = (n + 1) % (sizeof names / sizeof names[0]);
3074 /* Return a copy of the full filename of a flist entry, using the indicated
3075 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
3076 * done because we checked the size when creating the file_struct entry.
3078 char *f_name(const struct file_struct *f, char *fbuf)
3080 if (!f || !F_IS_ACTIVE(f))
3084 fbuf = f_name_buf();
3087 int len = strlen(f->dirname);
3088 memcpy(fbuf, f->dirname, len);
3090 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
3092 strlcpy(fbuf, f->basename, MAXPATHLEN);
3097 /* Do a non-recursive scan of the named directory, possibly ignoring all
3098 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
3099 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
3100 * buffer (the functions we call will append names onto the end, but the old
3101 * dir value will be restored on exit). */
3102 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
3104 struct file_list *dirlist;
3105 char dirbuf[MAXPATHLEN];
3106 int save_recurse = recurse;
3107 int save_xfer_dirs = xfer_dirs;
3108 int save_prune_empty_dirs = prune_empty_dirs;
3111 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3112 if (dlen >= MAXPATHLEN)
3117 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3121 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, FLAG_CONTENT_DIR);
3122 xfer_dirs = save_xfer_dirs;
3123 recurse = save_recurse;
3124 if (INFO_GTE(PROGRESS, 1))
3125 flist_count_offset += dirlist->used;
3127 prune_empty_dirs = 0;
3128 dirlist->sorted = dirlist->files;
3129 flist_sort_and_clean(dirlist, 0);
3130 prune_empty_dirs = save_prune_empty_dirs;
3132 if (DEBUG_GTE(FLIST, 3))
3133 output_flist(dirlist);