2 * Generate and receive file lists.
4 * Copyright (C) 1996 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7 * Copyright (C) 2002-2007 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, visit the http://fsf.org website.
33 extern int am_generator;
34 extern int inc_recurse;
35 extern int do_progress;
36 extern int always_checksum;
38 extern int ignore_errors;
39 extern int numeric_ids;
43 extern int filesfrom_fd;
44 extern int one_file_system;
45 extern int copy_dirlinks;
46 extern int keep_dirlinks;
47 extern int preserve_acls;
48 extern int preserve_xattrs;
49 extern int preserve_links;
50 extern int preserve_hard_links;
51 extern int preserve_devices;
52 extern int preserve_specials;
56 extern int relative_paths;
57 extern int implied_dirs;
58 extern int file_extra_cnt;
59 extern int ignore_perishable;
60 extern int non_perishable_cnt;
61 extern int prune_empty_dirs;
62 extern int copy_links;
63 extern int copy_unsafe_links;
64 extern int protocol_version;
65 extern int sanitize_paths;
66 extern struct stats stats;
67 extern char *filesfrom_host;
69 extern char curr_dir[MAXPATHLEN];
71 extern struct chmod_mode_struct *chmod_modes;
73 extern struct filter_list_struct filter_list;
74 extern struct filter_list_struct server_filter_list;
78 extern int filesfrom_convert;
79 extern int need_unsorted_flist;
80 extern iconv_t ic_send, ic_recv;
83 #define PTR_SIZE (sizeof (struct file_struct *))
87 dev_t filesystem_dev; /* used to implement -x */
89 struct file_list *cur_flist, *first_flist, *dir_flist;
90 int send_dir_ndx = -1, send_dir_depth = 0;
91 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
92 int file_total = 0; /* total of all active items over all file-lists */
93 int flist_eof = 0; /* all the file-lists are now known */
95 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
96 * internally, even if this platform does not allow files to have 64-bit inums.
97 * The only exception is if we're on a platform with no 64-bit type at all.
99 * Because we use read_longint() to get these off the wire, if you transfer
100 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
101 * machine with no 64-bit types then you will get an overflow error.
103 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
104 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
105 * be truncated. But it's a kind of silly thing to do anyhow. */
107 /* The tmp_* vars are used as a cache area by make_file() to store data
108 * that the sender doesn't need to remember in its file list. The data
109 * will survive just long enough to be used by send_file_entry(). */
110 static dev_t tmp_rdev;
111 #ifdef SUPPORT_HARD_LINKS
112 static int64 tmp_dev, tmp_ino;
114 static char tmp_sum[MAX_DIGEST_LEN];
116 static char empty_sum[MAX_DIGEST_LEN];
117 static int flist_count_offset; /* for --delete --progress */
118 static int dir_count = 0;
119 static int high_hlink_ndx;
121 static void clean_flist(struct file_list *flist, int strip_root);
122 static void output_flist(struct file_list *flist);
124 void init_flist(void)
127 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
128 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
130 checksum_len = protocol_version < 21 ? 2
131 : protocol_version < 30 ? MD4_DIGEST_LEN
135 static int show_filelist_p(void)
137 return verbose && xfer_dirs && !am_server && !inc_recurse;
140 static void start_filelist_progress(char *kind)
142 rprintf(FCLIENT, "%s ... ", kind);
143 if (verbose > 1 || do_progress)
144 rprintf(FCLIENT, "\n");
148 static void emit_filelist_progress(int count)
150 rprintf(FCLIENT, " %d files...\r", count);
153 static void maybe_emit_filelist_progress(int count)
155 if (do_progress && show_filelist_p() && (count % 100) == 0)
156 emit_filelist_progress(count);
159 static void finish_filelist_progress(const struct file_list *flist)
162 /* This overwrites the progress line */
163 rprintf(FINFO, "%d file%sto consider\n",
164 flist->used, flist->used == 1 ? " " : "s ");
166 rprintf(FINFO, "done\n");
169 void show_flist_stats(void)
174 /* Stat either a symlink or its referent, depending on the settings of
175 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
177 * If path is the name of a symlink, then the linkbuf buffer (which must hold
178 * MAXPATHLEN chars) will be set to the symlink's target string.
180 * The stat structure pointed to by stp will contain information about the
181 * link or the referent as appropriate, if they exist. */
182 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
185 if (link_stat(path, stp, copy_dirlinks) < 0)
187 if (S_ISLNK(stp->st_mode)) {
188 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
191 linkbuf[llen] = '\0';
192 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
194 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
197 return x_stat(path, stp, NULL);
202 return x_stat(path, stp, NULL);
206 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
210 return x_stat(path, stp, NULL);
211 if (x_lstat(path, stp, NULL) < 0)
213 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
215 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
220 return x_stat(path, stp, NULL);
224 /* This function is used to check if a file should be included/excluded
225 * from the list of files based on its name and type etc. The value of
226 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
227 static int is_excluded(char *fname, int is_dir, int filter_level)
229 #if 0 /* This currently never happens, so avoid a useless compare. */
230 if (filter_level == NO_FILTERS)
234 /* never exclude '.', even if somebody does --exclude '*' */
235 if (fname[0] == '.' && !fname[1])
237 /* Handle the -R version of the '.' dir. */
238 if (fname[0] == '/') {
239 int len = strlen(fname);
240 if (fname[len-1] == '.' && fname[len-2] == '/')
244 if (server_filter_list.head
245 && check_filter(&server_filter_list, fname, is_dir) < 0)
247 if (filter_level != ALL_FILTERS)
250 && check_filter(&filter_list, fname, is_dir) < 0)
255 static void send_directory(int f, struct file_list *flist,
256 char *fbuf, int len, int flags);
258 static const char *pathname, *orig_dir;
259 static int pathname_len;
262 /* Make sure flist can hold at least flist->used + extra entries. */
263 static void flist_expand(struct file_list *flist, int extra)
265 struct file_struct **new_ptr;
267 if (flist->used + extra <= flist->malloced)
270 if (flist->malloced < FLIST_START)
271 flist->malloced = FLIST_START;
272 else if (flist->malloced >= FLIST_LINEAR)
273 flist->malloced += FLIST_LINEAR;
275 flist->malloced *= 2;
277 /* In case count jumped or we are starting the list
278 * with a known size just set it. */
279 if (flist->malloced < flist->used + extra)
280 flist->malloced = flist->used + extra;
282 new_ptr = realloc_array(flist->files, struct file_struct *,
285 if (verbose >= 2 && flist->malloced != FLIST_START) {
286 rprintf(FCLIENT, "[%s] expand file_list pointer array to %.0f bytes, did%s move\n",
288 (double)sizeof flist->files[0] * flist->malloced,
289 (new_ptr == flist->files) ? " not" : "");
292 flist->files = new_ptr;
295 out_of_memory("flist_expand");
298 static void flist_done_allocating(struct file_list *flist)
300 void *ptr = pool_boundary(flist->file_pool, 8*1024);
301 if (flist->pool_boundary == ptr)
302 flist->pool_boundary = NULL; /* list didn't use any pool memory */
304 flist->pool_boundary = ptr;
307 int push_pathname(const char *dir, int len)
313 orig_dir = strdup(curr_dir);
315 if (pathname && !pop_dir(orig_dir)) {
316 rsyserr(FERROR, errno, "pop_dir %s failed",
317 full_fname(orig_dir));
318 exit_cleanup(RERR_FILESELECT);
321 if (dir && !push_dir(dir, 0)) {
322 io_error |= IOERR_GENERAL;
323 rsyserr(FERROR, errno, "push_dir %s failed in %s",
324 full_fname(dir), curr_dir);
329 pathname_len = len >= 0 ? len : dir ? (int)strlen(dir) : 0;
334 static void send_file_entry(int f, struct file_struct *file, int ndx, int first_ndx)
336 static time_t modtime;
338 #ifdef SUPPORT_HARD_LINKS
342 static uint32 rdev_major;
345 static char *user_name, *group_name;
346 static char lastname[MAXPATHLEN];
347 char fname[MAXPATHLEN];
348 int first_hlink_ndx = -1;
353 if (ic_send != (iconv_t)-1) {
356 INIT_CONST_XBUF(outbuf, fname);
359 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
360 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
361 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
364 outbuf.buf[outbuf.len++] = '/';
367 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
368 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
370 io_error |= IOERR_GENERAL;
372 "[%s] cannot convert filename: %s (%s)\n",
373 who_am_i(), f_name(file, fname), strerror(errno));
376 outbuf.buf[outbuf.len] = '\0';
381 /* Initialize starting value of xflags. */
382 if (protocol_version >= 30 && S_ISDIR(file->mode)) {
383 if (file->flags & FLAG_CONTENT_DIR)
384 xflags = file->flags & FLAG_TOP_DIR;
385 else if (file->flags & FLAG_IMPLIED_DIR)
386 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
388 xflags = XMIT_NO_CONTENT_DIR;
390 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
392 if (file->mode == mode)
393 xflags |= XMIT_SAME_MODE;
397 if ((preserve_devices && IS_DEVICE(mode))
398 || (preserve_specials && IS_SPECIAL(mode))) {
399 if (protocol_version < 28) {
400 if (tmp_rdev == rdev)
401 xflags |= XMIT_SAME_RDEV_pre28;
406 if ((uint32)major(rdev) == rdev_major)
407 xflags |= XMIT_SAME_RDEV_MAJOR;
409 rdev_major = major(rdev);
410 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
411 xflags |= XMIT_RDEV_MINOR_8_pre30;
413 } else if (protocol_version < 28)
414 rdev = MAKEDEV(0, 0);
416 if ((uid_t)F_OWNER(file) == uid && *lastname)
417 xflags |= XMIT_SAME_UID;
420 if (uid_ndx && !numeric_ids) {
421 user_name = add_uid(uid);
422 if (inc_recurse && user_name)
423 xflags |= XMIT_USER_NAME_FOLLOWS;
428 if ((gid_t)F_GROUP(file) == gid && *lastname)
429 xflags |= XMIT_SAME_GID;
432 if (gid_ndx && !numeric_ids) {
433 group_name = add_gid(gid);
434 if (inc_recurse && group_name)
435 xflags |= XMIT_GROUP_NAME_FOLLOWS;
439 if (file->modtime == modtime)
440 xflags |= XMIT_SAME_TIME;
442 modtime = file->modtime;
444 #ifdef SUPPORT_HARD_LINKS
446 if (protocol_version >= 30) {
447 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
448 first_hlink_ndx = (int32)(long)np->data - 1;
449 if (first_hlink_ndx < 0) {
450 high_hlink_ndx = ndx + first_ndx;
451 np->data = (void*)(long)(high_hlink_ndx + 1);
452 xflags |= XMIT_HLINK_FIRST;
454 xflags |= XMIT_HLINKED;
456 if (tmp_dev == dev) {
457 if (protocol_version >= 28)
458 xflags |= XMIT_SAME_DEV_pre30;
461 xflags |= XMIT_HLINKED;
467 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
469 l2 = strlen(fname+l1);
472 xflags |= XMIT_SAME_NAME;
474 xflags |= XMIT_LONG_NAME;
476 /* We must make sure we don't send a zero flag byte or the
477 * other end will terminate the flist transfer. Note that
478 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
479 * it's harmless way to add a bit to the first flag byte. */
480 if (protocol_version >= 28) {
481 if (!xflags && !S_ISDIR(mode))
482 xflags |= XMIT_TOP_DIR;
483 if ((xflags & 0xFF00) || !xflags) {
484 xflags |= XMIT_EXTENDED_FLAGS;
485 write_shortint(f, xflags);
487 write_byte(f, xflags);
489 if (!(xflags & 0xFF))
490 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
491 write_byte(f, xflags);
493 if (xflags & XMIT_SAME_NAME)
495 if (xflags & XMIT_LONG_NAME)
496 write_varint30(f, l2);
499 write_buf(f, fname + l1, l2);
501 if (first_hlink_ndx >= 0) {
502 write_varint(f, first_hlink_ndx);
503 if (first_hlink_ndx >= first_ndx)
507 write_varlong30(f, F_LENGTH(file), 3);
508 if (!(xflags & XMIT_SAME_TIME)) {
509 if (protocol_version >= 30)
510 write_varlong(f, modtime, 4);
512 write_int(f, modtime);
514 if (!(xflags & XMIT_SAME_MODE))
515 write_int(f, to_wire_mode(mode));
516 if (uid_ndx && !(xflags & XMIT_SAME_UID)) {
517 if (protocol_version < 30)
520 write_varint(f, uid);
521 if (xflags & XMIT_USER_NAME_FOLLOWS) {
522 int len = strlen(user_name);
524 write_buf(f, user_name, len);
528 if (gid_ndx && !(xflags & XMIT_SAME_GID)) {
529 if (protocol_version < 30)
532 write_varint(f, gid);
533 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
534 int len = strlen(group_name);
536 write_buf(f, group_name, len);
540 if ((preserve_devices && IS_DEVICE(mode))
541 || (preserve_specials && IS_SPECIAL(mode))) {
542 if (protocol_version < 28) {
543 if (!(xflags & XMIT_SAME_RDEV_pre28))
544 write_int(f, (int)rdev);
546 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
547 write_varint30(f, major(rdev));
548 if (protocol_version >= 30)
549 write_varint(f, minor(rdev));
550 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
551 write_byte(f, minor(rdev));
553 write_int(f, minor(rdev));
558 if (preserve_links && S_ISLNK(mode)) {
559 const char *sl = F_SYMLINK(file);
560 int len = strlen(sl);
561 write_varint30(f, len);
562 write_buf(f, sl, len);
566 #ifdef SUPPORT_HARD_LINKS
567 if (tmp_dev != 0 && protocol_version < 30) {
568 if (protocol_version < 26) {
569 /* 32-bit dev_t and ino_t */
570 write_int(f, (int32)dev);
571 write_int(f, (int32)tmp_ino);
573 /* 64-bit dev_t and ino_t */
574 if (!(xflags & XMIT_SAME_DEV_pre30))
575 write_longint(f, dev);
576 write_longint(f, tmp_ino);
581 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
586 /* Prior to 28, we sent a useless set of nulls. */
589 write_buf(f, sum, checksum_len);
593 strlcpy(lastname, fname, MAXPATHLEN);
595 if (S_ISREG(mode) || S_ISLNK(mode))
596 stats.total_size += F_LENGTH(file);
599 static struct file_struct *recv_file_entry(struct file_list *flist,
602 static int64 modtime;
604 #ifdef SUPPORT_HARD_LINKS
608 static uint32 rdev_major;
611 static uint16 gid_flags;
612 static char lastname[MAXPATHLEN], *lastdir;
613 static int lastdir_depth, lastdir_len = -1;
614 static unsigned int del_hier_name_len = 0;
615 static int in_del_hier = 0;
616 char thisname[MAXPATHLEN];
617 unsigned int l1 = 0, l2 = 0;
618 int alloc_len, basename_len, linkname_len;
619 int extra_len = file_extra_cnt * EXTRA_LEN;
620 int first_hlink_ndx = -1;
622 const char *basename;
623 struct file_struct *file;
627 if (xflags & XMIT_SAME_NAME)
630 if (xflags & XMIT_LONG_NAME)
631 l2 = read_varint30(f);
635 if (l2 >= MAXPATHLEN - l1) {
637 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
638 xflags, l1, l2, lastname, who_am_i());
639 overflow_exit("recv_file_entry");
642 strlcpy(thisname, lastname, l1 + 1);
643 read_sbuf(f, &thisname[l1], l2);
644 thisname[l1 + l2] = 0;
646 /* Abuse basename_len for a moment... */
647 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
650 if (ic_recv != (iconv_t)-1) {
653 INIT_CONST_XBUF(outbuf, thisname);
654 INIT_XBUF(inbuf, lastname, basename_len, -1);
656 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
657 io_error |= IOERR_GENERAL;
659 "[%s] cannot convert filename: %s (%s)\n",
660 who_am_i(), lastname, strerror(errno));
663 outbuf.buf[outbuf.len] = '\0';
667 clean_fname(thisname, 0);
670 sanitize_path(thisname, thisname, "", 0, NULL);
672 if ((basename = strrchr(thisname, '/')) != NULL) {
673 int len = basename++ - thisname;
674 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
675 lastdir = new_array(char, len + 1);
676 memcpy(lastdir, thisname, len);
679 lastdir_depth = count_dir_elements(lastdir);
683 basename_len = strlen(basename) + 1; /* count the '\0' */
685 #ifdef SUPPORT_HARD_LINKS
686 if (protocol_version >= 30
687 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
688 first_hlink_ndx = read_varint(f);
689 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
691 "hard-link reference out of range: %d (%d)\n",
692 first_hlink_ndx, flist->ndx_start + flist->used);
693 exit_cleanup(RERR_PROTOCOL);
695 if (first_hlink_ndx >= flist->ndx_start) {
696 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
697 file_length = F_LENGTH(first);
698 modtime = first->modtime;
701 uid = F_OWNER(first);
703 gid = F_GROUP(first);
704 if ((preserve_devices && IS_DEVICE(mode))
705 || (preserve_specials && IS_SPECIAL(mode))) {
706 uint32 *devp = F_RDEV_P(first);
707 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
708 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
710 if (preserve_links && S_ISLNK(mode))
711 linkname_len = strlen(F_SYMLINK(first)) + 1;
719 file_length = read_varlong30(f, 3);
720 if (!(xflags & XMIT_SAME_TIME)) {
721 if (protocol_version >= 30) {
722 modtime = read_varlong(f, 4);
723 #if SIZEOF_TIME_T < SIZEOF_INT64
724 if ((modtime > INT_MAX || modtime < INT_MIN) && !am_generator) {
726 "Time value of %s truncated on receiver.\n",
731 modtime = read_int(f);
733 if (!(xflags & XMIT_SAME_MODE))
734 mode = from_wire_mode(read_int(f));
736 if (chmod_modes && !S_ISLNK(mode))
737 mode = tweak_mode(mode, chmod_modes);
739 if (uid_ndx && !(xflags & XMIT_SAME_UID)) {
740 if (protocol_version < 30)
741 uid = (uid_t)read_int(f);
743 uid = (uid_t)read_varint(f);
744 if (xflags & XMIT_USER_NAME_FOLLOWS)
745 uid = recv_user_name(f, uid);
746 else if (inc_recurse && am_root && !numeric_ids)
747 uid = match_uid(uid);
750 if (gid_ndx && !(xflags & XMIT_SAME_GID)) {
751 if (protocol_version < 30)
752 gid = (gid_t)read_int(f);
754 gid = (gid_t)read_varint(f);
756 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
757 gid = recv_group_name(f, gid, &gid_flags);
758 else if (inc_recurse && (!am_root || !numeric_ids))
759 gid = match_gid(gid, &gid_flags);
763 if ((preserve_devices && IS_DEVICE(mode))
764 || (preserve_specials && IS_SPECIAL(mode))) {
765 if (protocol_version < 28) {
766 if (!(xflags & XMIT_SAME_RDEV_pre28))
767 rdev = (dev_t)read_int(f);
770 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
771 rdev_major = read_varint30(f);
772 if (protocol_version >= 30)
773 rdev_minor = read_varint(f);
774 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
775 rdev_minor = read_byte(f);
777 rdev_minor = read_int(f);
778 rdev = MAKEDEV(rdev_major, rdev_minor);
780 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
782 } else if (protocol_version < 28)
783 rdev = MAKEDEV(0, 0);
786 if (preserve_links && S_ISLNK(mode)) {
787 linkname_len = read_varint30(f) + 1; /* count the '\0' */
788 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
789 rprintf(FERROR, "overflow: linkname_len=%d\n",
791 overflow_exit("recv_file_entry");
798 #ifdef SUPPORT_HARD_LINKS
800 if (preserve_hard_links) {
801 if (protocol_version < 28 && S_ISREG(mode))
802 xflags |= XMIT_HLINKED;
803 if (xflags & XMIT_HLINKED)
804 extra_len += (inc_recurse+1) * EXTRA_LEN;
809 /* We need one or two index int32s when we're preserving ACLs. */
811 extra_len += (S_ISDIR(mode) ? 2 : 1) * EXTRA_LEN;
814 if (always_checksum && S_ISREG(mode))
815 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
817 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
818 extra_len += EXTRA_LEN;
820 #if EXTRA_ROUNDING > 0
821 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
822 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
825 if (inc_recurse && S_ISDIR(mode)) {
826 if (one_file_system) {
827 /* Room to save the dir's device for -x */
828 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
830 pool = dir_flist->file_pool;
832 pool = flist->file_pool;
834 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
836 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
838 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
840 file = (struct file_struct *)bp;
841 bp += FILE_STRUCT_LEN;
843 memcpy(bp, basename, basename_len);
844 bp += basename_len + linkname_len; /* skip space for symlink too */
846 #ifdef SUPPORT_HARD_LINKS
847 if (xflags & XMIT_HLINKED)
848 file->flags |= FLAG_HLINKED;
850 file->modtime = (time_t)modtime;
851 file->len32 = (uint32)file_length;
852 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
853 file->flags |= FLAG_LENGTH64;
854 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
861 file->flags |= gid_flags;
865 F_NDX(file) = flist->used + flist->ndx_start;
868 if (basename != thisname) {
869 file->dirname = lastdir;
870 F_DEPTH(file) = lastdir_depth + 1;
875 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
877 if (protocol_version >= 30) {
878 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
879 if (xflags & XMIT_TOP_DIR)
880 file->flags |= FLAG_TOP_DIR;
881 file->flags |= FLAG_CONTENT_DIR;
882 } else if (xflags & XMIT_TOP_DIR)
883 file->flags |= FLAG_IMPLIED_DIR;
884 } else if (xflags & XMIT_TOP_DIR) {
885 in_del_hier = recurse;
886 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
887 if (relative_paths && del_hier_name_len > 2
888 && lastname[del_hier_name_len-1] == '.'
889 && lastname[del_hier_name_len-2] == '/')
890 del_hier_name_len -= 2;
891 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
892 } else if (in_del_hier) {
893 if (!relative_paths || !del_hier_name_len
894 || (l1 >= del_hier_name_len
895 && lastname[del_hier_name_len] == '/'))
896 file->flags |= FLAG_CONTENT_DIR;
902 if ((preserve_devices && IS_DEVICE(mode))
903 || (preserve_specials && IS_SPECIAL(mode))) {
904 uint32 *devp = F_RDEV_P(file);
905 DEV_MAJOR(devp) = major(rdev);
906 DEV_MINOR(devp) = minor(rdev);
911 bp = (char*)file->basename + basename_len;
912 if (first_hlink_ndx >= flist->ndx_start) {
913 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
914 memcpy(bp, F_SYMLINK(first), linkname_len);
916 read_sbuf(f, bp, linkname_len - 1);
918 sanitize_path(bp, bp, "", lastdir_depth, NULL);
922 #ifdef SUPPORT_HARD_LINKS
923 if (preserve_hard_links && xflags & XMIT_HLINKED) {
924 if (protocol_version >= 30) {
925 if (xflags & XMIT_HLINK_FIRST) {
926 high_hlink_ndx = flist->ndx_start + flist->used;
927 F_HL_GNUM(file) = high_hlink_ndx;
929 F_HL_GNUM(file) = first_hlink_ndx;
931 static int32 cnt = 0;
932 struct ht_int64_node *np;
935 if (protocol_version < 26) {
939 if (!(xflags & XMIT_SAME_DEV_pre30))
940 dev = read_longint(f);
941 ino = read_longint(f);
943 np = idev_find(dev, ino);
944 ndx = (int32)(long)np->data - 1;
947 np->data = (void*)(long)cnt;
949 F_HL_GNUM(file) = ndx;
954 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
958 /* Prior to 28, we get a useless set of nulls. */
961 if (first_hlink_ndx >= flist->ndx_start) {
962 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
963 memcpy(bp, F_SUM(first), checksum_len);
965 read_buf(f, bp, checksum_len);
969 if (preserve_acls && !S_ISLNK(mode))
970 receive_acl(file, f);
972 #ifdef SUPPORT_XATTRS
974 receive_xattr(file, f );
977 if (S_ISREG(mode) || S_ISLNK(mode))
978 stats.total_size += file_length;
983 /* Create a file_struct for a named file by reading its stat() information
984 * and performing extensive checks against global options.
986 * Returns a pointer to the new file struct, or NULL if there was an error
987 * or this file should be excluded. */
988 struct file_struct *make_file(const char *fname, struct file_list *flist,
989 STRUCT_STAT *stp, int flags, int filter_level)
991 static char *lastdir;
992 static int lastdir_len = -1;
993 struct file_struct *file;
994 char thisname[MAXPATHLEN];
995 char linkname[MAXPATHLEN];
996 int alloc_len, basename_len, linkname_len;
997 int extra_len = file_extra_cnt * EXTRA_LEN;
998 const char *basename;
1003 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1004 rprintf(FINFO, "skipping overly long name: %s\n", fname);
1007 clean_fname(thisname, 0);
1009 sanitize_path(thisname, thisname, "", 0, NULL);
1011 if (stp && S_ISDIR(stp->st_mode)) {
1012 st = *stp; /* Needed for "symlink/." with --relative. */
1013 *linkname = '\0'; /* make IBM code checker happy */
1014 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1015 int save_errno = errno;
1016 /* See if file is excluded before reporting an error. */
1017 if (filter_level != NO_FILTERS
1018 && (is_excluded(thisname, 0, filter_level)
1019 || is_excluded(thisname, 1, filter_level))) {
1020 if (ignore_perishable && save_errno != ENOENT)
1021 non_perishable_cnt++;
1024 if (save_errno == ENOENT) {
1025 #ifdef SUPPORT_LINKS
1026 /* Avoid "vanished" error if symlink points nowhere. */
1027 if (copy_links && x_lstat(thisname, &st, NULL) == 0
1028 && S_ISLNK(st.st_mode)) {
1029 io_error |= IOERR_GENERAL;
1030 rprintf(FERROR, "symlink has no referent: %s\n",
1031 full_fname(thisname));
1035 enum logcode c = am_daemon && protocol_version < 28
1037 io_error |= IOERR_VANISHED;
1038 rprintf(c, "file has vanished: %s\n",
1039 full_fname(thisname));
1042 io_error |= IOERR_GENERAL;
1043 rsyserr(FERROR, save_errno, "readlink %s failed",
1044 full_fname(thisname));
1049 /* backup.c calls us with filter_level set to NO_FILTERS. */
1050 if (filter_level == NO_FILTERS)
1053 if (S_ISDIR(st.st_mode)) {
1055 rprintf(FINFO, "skipping directory %s\n", thisname);
1058 /* -x only affects dirs because we need to avoid recursing
1059 * into a mount-point directory, not to avoid copying a
1060 * symlinked file if -L (or similar) was specified. */
1061 if (one_file_system && flags & FLAG_CONTENT_DIR) {
1062 if (flags & FLAG_TOP_DIR)
1063 filesystem_dev = st.st_dev;
1064 else if (st.st_dev != filesystem_dev) {
1065 if (one_file_system > 1) {
1068 "[%s] skipping mount-point dir %s\n",
1069 who_am_i(), thisname);
1073 flags |= FLAG_MOUNT_DIR;
1077 flags &= ~FLAG_CONTENT_DIR;
1079 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1080 if (ignore_perishable)
1081 non_perishable_cnt++;
1085 if (lp_ignore_nonreadable(module_id)) {
1086 #ifdef SUPPORT_LINKS
1087 if (!S_ISLNK(st.st_mode))
1089 if (access(thisname, R_OK) != 0)
1095 /* Only divert a directory in the main transfer. */
1097 if (flist->prev && S_ISDIR(st.st_mode)
1098 && flags & FLAG_DIVERT_DIRS) {
1099 /* Room for parent/sibling/next-child info. */
1100 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1102 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1104 pool = dir_flist->file_pool;
1106 pool = flist->file_pool;
1111 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1112 who_am_i(), thisname, filter_level);
1115 if ((basename = strrchr(thisname, '/')) != NULL) {
1116 int len = basename++ - thisname;
1117 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1118 lastdir = new_array(char, len + 1);
1119 memcpy(lastdir, thisname, len);
1120 lastdir[len] = '\0';
1124 basename = thisname;
1125 basename_len = strlen(basename) + 1; /* count the '\0' */
1127 #ifdef SUPPORT_LINKS
1128 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1133 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1134 extra_len += EXTRA_LEN;
1136 #if EXTRA_ROUNDING > 0
1137 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1138 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1141 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1144 bp = pool_alloc(pool, alloc_len, "make_file");
1146 if (!(bp = new_array(char, alloc_len)))
1147 out_of_memory("make_file");
1150 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1152 file = (struct file_struct *)bp;
1153 bp += FILE_STRUCT_LEN;
1155 memcpy(bp, basename, basename_len);
1156 bp += basename_len + linkname_len; /* skip space for symlink too */
1158 #ifdef SUPPORT_HARD_LINKS
1159 if (preserve_hard_links && flist && flist->prev) {
1160 if (protocol_version >= 28
1161 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1162 : S_ISREG(st.st_mode)) {
1163 tmp_dev = st.st_dev;
1164 tmp_ino = st.st_ino;
1170 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1171 if (IS_DEVICE(st.st_mode) || IS_SPECIAL(st.st_mode)) {
1172 tmp_rdev = st.st_rdev;
1177 file->flags = flags;
1178 file->modtime = st.st_mtime;
1179 file->len32 = (uint32)st.st_size;
1180 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1181 file->flags |= FLAG_LENGTH64;
1182 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1184 file->mode = st.st_mode;
1186 F_OWNER(file) = st.st_uid;
1188 F_GROUP(file) = st.st_gid;
1190 if (basename != thisname)
1191 file->dirname = lastdir;
1193 #ifdef SUPPORT_LINKS
1195 bp = (char*)file->basename + basename_len;
1196 memcpy(bp, linkname, linkname_len);
1200 if (always_checksum && am_sender && S_ISREG(st.st_mode))
1201 file_checksum(thisname, tmp_sum, st.st_size);
1203 F_PATHNAME(file) = pathname;
1205 /* This code is only used by the receiver when it is building
1206 * a list of files for a delete pass. */
1207 if (keep_dirlinks && linkname_len && flist) {
1209 int save_mode = file->mode;
1210 file->mode = S_IFDIR; /* Find a directory with our name. */
1211 if (flist_find(dir_flist, file) >= 0
1212 && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
1213 file->modtime = st2.st_mtime;
1215 file->mode = st2.st_mode;
1217 F_OWNER(file) = st2.st_uid;
1219 F_GROUP(file) = st2.st_gid;
1221 file->mode = save_mode;
1224 if (basename_len == 0+1)
1229 F_NDX(file) = dir_count - 1;
1235 /* Only called for temporary file_struct entries created by make_file(). */
1236 void unmake_file(struct file_struct *file)
1238 int extra_cnt = file_extra_cnt + LEN64_BUMP(file);
1239 #if EXTRA_ROUNDING > 0
1240 if (extra_cnt & EXTRA_ROUNDING)
1241 extra_cnt = (extra_cnt | EXTRA_ROUNDING) + 1;
1243 free(REQ_EXTRA(file, extra_cnt));
1246 static struct file_struct *send_file_name(int f, struct file_list *flist,
1247 char *fname, STRUCT_STAT *stp,
1248 int flags, int filter_level)
1250 struct file_struct *file;
1251 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1255 file = make_file(fname, flist, stp, flags, filter_level);
1259 if (chmod_modes && !S_ISLNK(file->mode))
1260 file->mode = tweak_mode(file->mode, chmod_modes);
1263 if (preserve_acls && !S_ISLNK(file->mode) && f >= 0) {
1264 sx.st.st_mode = file->mode;
1265 sx.acc_acl = sx.def_acl = NULL;
1266 if (get_acl(fname, &sx) < 0)
1270 #ifdef SUPPORT_XATTRS
1271 if (preserve_xattrs && f >= 0) {
1273 if (get_xattr(fname, &sx) < 0)
1278 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1280 flist_expand(flist, 1);
1281 flist->files[flist->used++] = file;
1283 send_file_entry(f, file, flist->used - 1, flist->ndx_start);
1285 if (preserve_acls && !S_ISLNK(file->mode)) {
1290 #ifdef SUPPORT_XATTRS
1291 if (preserve_xattrs) {
1292 F_XATTR(file) = send_xattr(&sx, f);
1300 static void send_if_directory(int f, struct file_list *flist,
1301 struct file_struct *file,
1302 char *fbuf, unsigned int ol,
1305 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1307 if (S_ISDIR(file->mode)
1308 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1310 unsigned int len = strlen(fbuf);
1311 if (len > 1 && fbuf[len-1] == '/')
1313 if (len >= MAXPATHLEN - 1) {
1314 io_error |= IOERR_GENERAL;
1315 rprintf(FERROR, "skipping long-named directory: %s\n",
1319 save_filters = push_local_filters(fbuf, len);
1320 send_directory(f, flist, fbuf, len, flags);
1321 pop_local_filters(save_filters);
1328 static int file_compare(const void *file1, const void *file2)
1330 return f_name_cmp(*(struct file_struct **)file1,
1331 *(struct file_struct **)file2);
1334 /* The guts of a merge-sort algorithm. This was derived from the glibc
1335 * version, but I (Wayne) changed the merge code to do less copying and
1336 * to require only half the amount of temporary memory. */
1337 static void fsort_tmp(struct file_struct **fp, size_t num,
1338 struct file_struct **tmp)
1340 struct file_struct **f1, **f2, **t;
1349 fsort_tmp(f1, n1, tmp);
1351 fsort_tmp(f2, n2, tmp);
1353 while (f_name_cmp(*f1, *f2) <= 0) {
1360 memcpy(t, f1, n1 * PTR_SIZE);
1362 *f1++ = *f2++, n2--;
1364 while (n1 > 0 && n2 > 0) {
1365 if (f_name_cmp(*t, *f2) <= 0)
1368 *f1++ = *f2++, n2--;
1372 memcpy(f1, t, n1 * PTR_SIZE);
1375 /* This file-struct sorting routine makes sure that any identical names in
1376 * the file list stay in the same order as they were in the original list.
1377 * This is particularly vital in inc_recurse mode where we expect a sort
1378 * on the flist to match the exact order of a sort on the dir_flist. */
1379 static void fsort(struct file_struct **fp, size_t num)
1385 qsort(fp, num, PTR_SIZE, file_compare);
1387 struct file_struct **tmp = new_array(struct file_struct *,
1389 fsort_tmp(fp, num, tmp);
1394 /* We take an entire set of sibling dirs from the sorted flist and link them
1395 * into the tree, setting the appropriate parent/child/sibling pointers. */
1396 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1401 int32 *parent_dp = parent_ndx < 0 ? NULL
1402 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1404 flist_expand(dir_flist, dir_cnt);
1405 dir_flist->sorted = dir_flist->files;
1407 for (i = 0; dir_cnt; i++) {
1408 struct file_struct *file = from_flist->sorted[i];
1410 if (!S_ISDIR(file->mode))
1413 dir_flist->files[dir_flist->used++] = file;
1417 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1419 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1421 send_dir_ndx = dir_flist->used - 1;
1423 dp = F_DIR_NODE_P(file);
1424 DIR_PARENT(dp) = parent_ndx;
1425 DIR_FIRST_CHILD(dp) = -1;
1428 DIR_NEXT_SIBLING(dp) = -1;
1431 /* This function is normally called by the sender, but the receiving side also
1432 * calls it from get_dirlist() with f set to -1 so that we just construct the
1433 * file list in memory without sending it over the wire. Also, get_dirlist()
1434 * might call this with f set to -2, which also indicates that local filter
1435 * rules should be ignored. */
1436 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1443 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1444 int start = flist->used;
1445 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1447 assert(flist != NULL);
1449 if (!(d = opendir(fbuf))) {
1450 io_error |= IOERR_GENERAL;
1451 rsyserr(FERROR, errno, "opendir %s failed", full_fname(fbuf));
1456 if (len != 1 || *fbuf != '/')
1459 remainder = MAXPATHLEN - (p - fbuf);
1461 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1462 char *dname = d_name(di);
1463 if (dname[0] == '.' && (dname[1] == '\0'
1464 || (dname[1] == '.' && dname[2] == '\0')))
1466 if (strlcpy(p, dname, remainder) >= remainder) {
1467 io_error |= IOERR_GENERAL;
1469 "cannot send long-named file %s\n",
1473 if (dname[0] == '\0') {
1474 io_error |= IOERR_GENERAL;
1476 "cannot send file with empty name in %s\n",
1481 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1487 io_error |= IOERR_GENERAL;
1488 rsyserr(FERROR, errno, "readdir(%s)", full_fname(fbuf));
1493 if (f >= 0 && recurse && !divert_dirs) {
1494 int i, end = flist->used - 1;
1495 /* send_if_directory() bumps flist->used, so use "end". */
1496 for (i = start; i <= end; i++)
1497 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1501 static char lastpath[MAXPATHLEN] = "";
1502 static int lastpath_len = 0;
1503 static struct file_struct *lastpath_struct;
1505 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1506 char *start, char *limit, int flags, int is_dot_dir)
1508 struct file_struct *file;
1509 item_list *relname_list;
1510 relnamecache **rnpp;
1512 int len, need_new_dir;
1514 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1517 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1518 && lastpath_len == limit - fname
1519 && strncmp(lastpath, fname, lastpath_len) == 0)
1527 int save_copy_links = copy_links;
1528 int save_xfer_dirs = xfer_dirs;
1530 copy_links = xfer_dirs = 1;
1534 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1536 send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1540 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1542 if (file && !S_ISDIR(file->mode))
1544 lastpath_struct = file;
1547 strlcpy(lastpath, fname, sizeof lastpath);
1548 lastpath_len = limit - fname;
1552 copy_links = save_copy_links;
1553 xfer_dirs = save_xfer_dirs;
1559 if (!lastpath_struct)
1560 return; /* dir must have vanished */
1562 len = strlen(limit+1);
1563 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1564 if (!relname_list) {
1565 if (!(relname_list = new0(item_list)))
1566 out_of_memory("send_implied_dirs");
1567 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1569 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1570 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1571 out_of_memory("send_implied_dirs");
1572 (*rnpp)->is_dot_dir = is_dot_dir;
1573 strlcpy((*rnpp)->fname, limit+1, len + 1);
1576 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1578 char fbuf[MAXPATHLEN];
1579 item_list *relname_list;
1580 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1584 dlen = strlen(fbuf);
1586 if (F_PATHNAME(file) != pathname) {
1587 if (!push_pathname(F_PATHNAME(file), -1))
1588 exit_cleanup(RERR_FILESELECT);
1591 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1593 if (BITS_SETnUNSET(file->flags, FLAG_CONTENT_DIR, FLAG_MOUNT_DIR))
1594 send_directory(f, flist, fbuf, dlen, flags);
1596 if (!relative_paths)
1599 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1603 for (j = 0; j < relname_list->count; j++) {
1605 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1606 int is_dot_dir = rnp->is_dot_dir;
1609 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1611 if (len >= (int)sizeof fbuf)
1612 continue; /* Impossible... */
1614 slash = strchr(fbuf+dlen+1, '/');
1616 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, is_dot_dir);
1622 if (link_stat(fbuf, &st, 1) != 0) {
1623 io_error |= IOERR_GENERAL;
1624 rsyserr(FERROR, errno, "link_stat %s failed",
1628 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1630 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1636 void send_extra_file_list(int f, int at_least)
1638 struct file_list *flist;
1641 int future_cnt, save_io_error = io_error;
1646 /* Keep sending data until we have the requested number of
1647 * files in the upcoming file-lists. */
1648 if (cur_flist->next) {
1649 flist = first_flist->prev; /* the newest flist */
1650 future_cnt = flist->ndx_end - cur_flist->next->ndx_start + 1;
1653 while (future_cnt < at_least) {
1654 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1655 int dir_ndx, dstart = dir_count;
1656 const char *pathname = F_PATHNAME(file);
1659 flist = flist_new(0, "send_extra_file_list");
1660 start_write = stats.total_written;
1664 dir_ndx = F_NDX(file);
1667 dir_ndx = send_dir_ndx;
1668 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1669 flist->parent_ndx = dir_ndx;
1671 send1extra(f, file, flist);
1672 prev_flags = file->flags;
1673 dp = F_DIR_NODE_P(file);
1675 /* If there are any duplicate directory names that follow, we
1676 * send all the dirs together in one file-list. The dir_flist
1677 * tree links all the child subdirs onto the last dup dir. */
1678 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1679 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1680 send_dir_ndx = dir_ndx;
1681 file = dir_flist->sorted[dir_ndx];
1682 /* Try to avoid some duplicate scanning of identical dirs. */
1683 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1684 file->flags &= ~FLAG_CONTENT_DIR;
1685 send1extra(f, file, flist);
1686 prev_flags = file->flags;
1687 dp = F_DIR_NODE_P(file);
1693 if (need_unsorted_flist) {
1694 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1695 out_of_memory("send_extra_file_list");
1696 memcpy(flist->sorted, flist->files,
1697 flist->used * sizeof (struct file_struct*));
1700 flist->sorted = flist->files;
1702 clean_flist(flist, 0);
1704 flist->ndx_end = flist->ndx_start + flist->used - 1
1705 - (dir_count - dstart);
1707 add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
1708 flist_done_allocating(flist);
1710 file_total += flist->used;
1711 future_cnt += flist->used;
1712 stats.flist_size += stats.total_written - start_write;
1713 stats.num_files += flist->used;
1715 output_flist(flist);
1717 if (DIR_FIRST_CHILD(dp) >= 0) {
1718 send_dir_ndx = DIR_FIRST_CHILD(dp);
1721 while (DIR_NEXT_SIBLING(dp) < 0) {
1722 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1723 write_ndx(f, NDX_FLIST_EOF);
1725 change_local_filter_dir(NULL, 0, 0);
1729 file = dir_flist->sorted[send_dir_ndx];
1730 dp = F_DIR_NODE_P(file);
1732 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1737 if (io_error != save_io_error && !ignore_errors)
1738 send_msg_int(MSG_IO_ERROR, io_error);
1741 struct file_list *send_file_list(int f, int argc, char *argv[])
1743 static const char *lastdir;
1744 static int lastdir_len = -1;
1748 struct file_list *flist;
1749 struct timeval start_tv, end_tv;
1752 int disable_buffering;
1753 int flags = recurse ? FLAG_CONTENT_DIR : 0;
1754 int reading_remotely = filesfrom_host != NULL;
1755 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
1757 | (filesfrom_convert ? RL_CONVERT : 0)
1759 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
1761 rprintf(FLOG, "building file list\n");
1762 if (show_filelist_p())
1763 start_filelist_progress("building file list");
1764 else if (inc_recurse && verbose && !am_server)
1765 rprintf(FCLIENT, "sending incremental file list\n");
1767 start_write = stats.total_written;
1768 gettimeofday(&start_tv, NULL);
1770 if (relative_paths && protocol_version >= 30)
1771 implied_dirs = 1; /* We send flagged implied dirs */
1773 #ifdef SUPPORT_HARD_LINKS
1774 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
1778 flist = cur_flist = flist_new(0, "send_file_list");
1780 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
1781 flags |= FLAG_DIVERT_DIRS;
1783 dir_flist = cur_flist;
1785 disable_buffering = io_start_buffering_out(f);
1786 if (filesfrom_fd >= 0) {
1787 if (argv[0] && !push_dir(argv[0], 0)) {
1788 rsyserr(FERROR, errno, "push_dir %s failed in %s",
1789 full_fname(argv[0]), curr_dir);
1790 exit_cleanup(RERR_FILESELECT);
1796 char fbuf[MAXPATHLEN];
1801 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
1803 sanitize_path(fbuf, fbuf, "", 0, NULL);
1807 strlcpy(fbuf, *argv++, MAXPATHLEN);
1809 sanitize_path(fbuf, fbuf, "", 0, NULL);
1813 if (relative_paths) {
1814 /* We clean up fbuf below. */
1816 } else if (!len || fbuf[len - 1] == '/') {
1817 if (len == 2 && fbuf[0] == '.') {
1818 /* Turn "./" into just "." rather than "./." */
1821 if (len + 1 >= MAXPATHLEN)
1822 overflow_exit("send_file_list");
1827 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
1828 && (len == 2 || fbuf[len-3] == '/')) {
1829 if (len + 2 >= MAXPATHLEN)
1830 overflow_exit("send_file_list");
1836 is_dot_dir = fbuf[len-1] == '.'
1837 && (len == 1 || fbuf[len-2] == '/');
1842 if (!relative_paths) {
1843 p = strrchr(fbuf, '/');
1850 len -= p - fbuf + 1;
1855 if ((p = strstr(fbuf, "/./")) != NULL) {
1861 len -= p - fbuf + 3;
1865 /* Get rid of trailing "/" and "/.". */
1867 if (fn[len - 1] == '/') {
1869 if (!--len && !dir) {
1874 else if (len >= 2 && fn[len - 1] == '.'
1875 && fn[len - 2] == '/') {
1877 if (!(len -= 2) && !dir) {
1889 } else if (fn[0] == '.')
1892 /* Reject a ".." dir in the active part of the path. */
1893 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
1894 if ((p[2] == '/' || p[2] == '\0')
1895 && (p == fn || p[-1] == '/')) {
1897 "found \"..\" dir in relative path: %s\n",
1899 exit_cleanup(RERR_SYNTAX);
1910 dirlen = dir ? strlen(dir) : 0;
1911 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
1912 if (!push_pathname(dir ? strdup(dir) : NULL, dirlen))
1915 lastdir_len = pathname_len;
1916 } else if (!push_pathname(lastdir, lastdir_len))
1920 memmove(fbuf, fn, len + 1);
1922 if (link_stat(fbuf, &st, copy_dirlinks || is_dot_dir) != 0) {
1923 io_error |= IOERR_GENERAL;
1924 rsyserr(FERROR, errno, "link_stat %s failed",
1929 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
1930 rprintf(FINFO, "skipping directory %s\n", fbuf);
1934 if (inc_recurse && relative_paths && *fbuf) {
1935 if ((p = strchr(fbuf+1, '/')) != NULL) {
1936 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, is_dot_dir);
1939 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
1940 /* Send the implied directories at the start of the
1941 * source spec, so we get their permissions right. */
1942 char *lp = lastpath, *slash = fbuf;
1944 /* Skip any initial directories in our path that we
1945 * have in common with lastpath. */
1946 for (fn = fbuf; *fn && *lp == *fn; lp++, fn++) {
1951 if (fn != p || (*lp && *lp != '/'))
1952 send_implied_dirs(f, flist, fbuf, slash, p, flags, 0);
1955 if (recurse || (xfer_dirs && is_dot_dir)) {
1956 struct file_struct *file;
1957 int top_flags = FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags;
1958 file = send_file_name(f, flist, fbuf, &st,
1959 top_flags, ALL_FILTERS);
1960 if (file && !inc_recurse)
1961 send_if_directory(f, flist, file, fbuf, len, flags);
1963 send_file_name(f, flist, fbuf, &st, flags, ALL_FILTERS);
1966 gettimeofday(&end_tv, NULL);
1967 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
1968 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
1969 if (stats.flist_buildtime == 0)
1970 stats.flist_buildtime = 1;
1973 write_byte(f, 0); /* Indicate end of file list */
1975 #ifdef SUPPORT_HARD_LINKS
1976 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
1980 if (show_filelist_p())
1981 finish_filelist_progress(flist);
1983 gettimeofday(&end_tv, NULL);
1984 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
1985 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
1987 /* When converting names, both sides keep an unsorted file-list array
1988 * because the names will differ on the sending and receiving sides
1989 * (both sides will use the unsorted index number for each item). */
1991 /* Sort the list without removing any duplicates. This allows the
1992 * receiving side to ask for whatever name it kept. For incremental
1993 * recursion mode, the sender marks duplicate dirs so that it can
1994 * send them together in a single file-list. */
1996 if (need_unsorted_flist) {
1998 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1999 out_of_memory("send_file_list");
2000 memcpy(flist->sorted, flist->files,
2001 flist->used * sizeof (struct file_struct*));
2002 clean_flist(flist, 0);
2004 flist->sorted = flist->files;
2006 flist->high = flist->used - 1;
2011 flist->sorted = flist->files;
2012 clean_flist(flist, 0);
2014 file_total += flist->used;
2016 /* We don't subtract dir_count for the first send since we
2017 * might have one or more dot dirs which need to get sent. */
2018 flist->ndx_end = flist->ndx_start + flist->used - 1;
2020 if (!numeric_ids && !inc_recurse)
2023 /* send the io_error flag */
2024 if (protocol_version < 30)
2025 write_int(f, ignore_errors ? 0 : io_error);
2026 else if (io_error && !ignore_errors)
2027 send_msg_int(MSG_IO_ERROR, io_error);
2029 if (disable_buffering)
2030 io_end_buffering_out();
2032 stats.flist_size = stats.total_written - start_write;
2033 stats.num_files = flist->used;
2036 output_flist(flist);
2039 rprintf(FINFO, "send_file_list done\n");
2042 add_dirs_to_tree(-1, flist, dir_count);
2043 flist_done_allocating(flist);
2044 if (send_dir_ndx < 0) {
2045 write_ndx(f, NDX_FLIST_EOF);
2048 else if (file_total == 1) {
2049 /* If we're creating incremental file-lists and there
2050 * was just 1 item in the first file-list, send 1 more
2051 * file-list to check if this is a 1-file xfer. */
2052 send_extra_file_list(f, 1);
2059 struct file_list *recv_file_list(int f)
2061 struct file_list *flist;
2066 rprintf(FLOG, "receiving file list\n");
2067 if (show_filelist_p())
2068 start_filelist_progress("receiving file list");
2069 else if (inc_recurse && verbose && !am_server && !first_flist)
2070 rprintf(FCLIENT, "receiving incremental file list\n");
2072 start_read = stats.total_read;
2074 #ifdef SUPPORT_HARD_LINKS
2075 if (preserve_hard_links && !first_flist)
2079 flist = flist_new(0, "recv_file_list");
2082 if (flist->ndx_start == 0)
2083 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2084 dstart = dir_flist->used;
2090 while ((flags = read_byte(f)) != 0) {
2091 struct file_struct *file;
2093 flist_expand(flist, 1);
2095 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2096 flags |= read_byte(f) << 8;
2097 file = recv_file_entry(flist, flags, f);
2099 if (inc_recurse && S_ISDIR(file->mode)) {
2100 flist_expand(dir_flist, 1);
2101 dir_flist->files[dir_flist->used++] = file;
2104 flist->files[flist->used++] = file;
2106 maybe_emit_filelist_progress(flist->used);
2109 rprintf(FINFO, "recv_file_name(%s)\n",
2110 f_name(file, NULL));
2113 file_total += flist->used;
2115 flist->ndx_end = flist->ndx_start + flist->used - 1;
2116 if (inc_recurse && flist->ndx_start)
2117 flist->ndx_end -= dir_flist->used - dstart;
2120 rprintf(FINFO, "received %d names\n", flist->used);
2122 if (show_filelist_p())
2123 finish_filelist_progress(flist);
2126 if (need_unsorted_flist) {
2127 /* Create an extra array of index pointers that we can sort for
2128 * the generator's use (for wading through the files in sorted
2129 * order and for calling flist_find()). We keep the "files"
2130 * list unsorted for our exchange of index numbers with the
2131 * other side (since their names may not sort the same). */
2132 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2133 out_of_memory("recv_file_list");
2134 memcpy(flist->sorted, flist->files,
2135 flist->used * sizeof (struct file_struct*));
2136 if (inc_recurse && dir_flist->used > dstart) {
2137 dir_flist->sorted = realloc_array(dir_flist->sorted,
2138 struct file_struct *,
2140 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2141 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2142 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2147 flist->sorted = flist->files;
2148 if (inc_recurse && dir_flist->used > dstart) {
2149 dir_flist->sorted = dir_flist->files;
2150 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2155 flist_done_allocating(flist);
2157 recv_id_list(f, flist);
2159 clean_flist(flist, relative_paths);
2161 if (protocol_version < 30) {
2162 /* Recv the io_error flag */
2166 io_error |= read_int(f);
2170 output_flist(flist);
2173 rprintf(FINFO, "recv_file_list done\n");
2175 stats.flist_size += stats.total_read - start_read;
2176 stats.num_files += flist->used;
2181 /* This is only used once by the receiver if the very first file-list
2182 * has exactly one item in it. */
2183 void recv_additional_file_list(int f)
2185 struct file_list *flist;
2186 int ndx = read_ndx(f);
2187 if (ndx == NDX_FLIST_EOF) {
2189 change_local_filter_dir(NULL, 0, 0);
2191 ndx = NDX_FLIST_OFFSET - ndx;
2192 if (ndx < 0 || ndx >= dir_flist->used) {
2193 ndx = NDX_FLIST_OFFSET - ndx;
2195 "[%s] Invalid dir index: %d (%d - %d)\n",
2196 who_am_i(), ndx, NDX_FLIST_OFFSET,
2197 NDX_FLIST_OFFSET - dir_flist->used + 1);
2198 exit_cleanup(RERR_PROTOCOL);
2201 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2204 flist = recv_file_list(f);
2205 flist->parent_ndx = ndx;
2209 /* Search for an identically-named item in the file list. Note that the
2210 * items must agree in their directory-ness, or no match is returned. */
2211 int flist_find(struct file_list *flist, struct file_struct *f)
2213 int low = flist->low, high = flist->high;
2214 int diff, mid, mid_up;
2216 while (low <= high) {
2217 mid = (low + high) / 2;
2218 if (F_IS_ACTIVE(flist->sorted[mid]))
2221 /* Scan for the next non-empty entry using the cached
2222 * distance values. If the value isn't fully up-to-
2223 * date, update it. */
2224 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2225 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2227 mid_up += F_DEPTH(flist->sorted[mid_up]);
2228 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2229 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2231 if (mid_up > high) {
2232 /* If there's nothing left above us, set high to
2233 * a non-empty entry below us and continue. */
2234 high = mid - (int)flist->sorted[mid]->len32;
2235 if (!F_IS_ACTIVE(flist->sorted[high])) {
2237 high -= (int)flist->sorted[high]->len32;
2238 } while (!F_IS_ACTIVE(flist->sorted[high]));
2239 flist->sorted[mid]->len32 = mid - high;
2244 diff = f_name_cmp(flist->sorted[mid_up], f);
2246 if (protocol_version < 29
2247 && S_ISDIR(flist->sorted[mid_up]->mode)
2248 != S_ISDIR(f->mode))
2261 * Free up any resources a file_struct has allocated
2262 * and clear the file.
2264 void clear_file(struct file_struct *file)
2266 /* The +1 zeros out the first char of the basename. */
2267 memset(file, 0, FILE_STRUCT_LEN + 1);
2268 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2269 * entry. Likewise for len32 in the opposite direction. We assume
2270 * that we're alone for now since flist_find() will adjust the counts
2271 * it runs into that aren't up-to-date. */
2272 file->len32 = F_DEPTH(file) = 1;
2275 /* Allocate a new file list. */
2276 struct file_list *flist_new(int flags, char *msg)
2278 struct file_list *flist;
2280 if (!(flist = new0(struct file_list)))
2283 if (flags & FLIST_TEMP) {
2284 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2285 out_of_memory, POOL_INTERN)))
2288 /* This is a doubly linked list with prev looping back to
2289 * the end of the list, but the last next pointer is NULL. */
2291 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2292 out_of_memory, POOL_INTERN);
2293 if (!flist->file_pool)
2296 first_flist = cur_flist = flist->prev = flist;
2298 flist->file_pool = first_flist->file_pool;
2300 flist->ndx_start = first_flist->prev->ndx_end + 2;
2301 if (flist->ndx_start <= high_hlink_ndx)
2302 flist->ndx_start = high_hlink_ndx + 1;
2304 flist->prev = first_flist->prev;
2305 flist->prev->next = first_flist->prev = flist;
2307 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2314 /* Free up all elements in a flist. */
2315 void flist_free(struct file_list *flist)
2318 /* Was FLIST_TEMP dir-list. */
2319 } else if (flist == flist->prev) {
2320 first_flist = cur_flist = NULL;
2324 if (flist == cur_flist)
2325 cur_flist = flist->next;
2326 if (flist == first_flist)
2327 first_flist = first_flist->next;
2329 flist->prev->next = flist->next;
2331 flist->next = first_flist;
2333 flist->next->prev = flist->prev;
2334 file_total -= flist->used;
2338 if (!flist->prev || !flist_cnt)
2339 pool_destroy(flist->file_pool);
2341 pool_free_old(flist->file_pool, flist->pool_boundary);
2343 if (flist->sorted && flist->sorted != flist->files)
2344 free(flist->sorted);
2349 /* This routine ensures we don't have any duplicate names in our file list.
2350 * duplicate names can cause corruption because of the pipelining. */
2351 static void clean_flist(struct file_list *flist, int strip_root)
2353 char fbuf[MAXPATHLEN];
2358 if (flist->used == 0) {
2364 fsort(flist->sorted, flist->used);
2366 if (!am_sender || inc_recurse) {
2367 for (i = prev_i = 0; i < flist->used; i++) {
2368 if (F_IS_ACTIVE(flist->sorted[i])) {
2373 flist->low = prev_i;
2375 i = prev_i = flist->used - 1;
2379 while (++i < flist->used) {
2381 struct file_struct *file = flist->sorted[i];
2383 if (!F_IS_ACTIVE(file))
2385 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2387 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2388 int save_mode = file->mode;
2389 /* Make sure that this directory doesn't duplicate a
2390 * non-directory earlier in the list. */
2391 flist->high = prev_i;
2392 file->mode = S_IFREG;
2393 j = flist_find(flist, file);
2394 file->mode = save_mode;
2399 /* If one is a dir and the other is not, we want to
2400 * keep the dir because it might have contents in the
2401 * list. Otherwise keep the first one. */
2402 if (S_ISDIR(file->mode)) {
2403 struct file_struct *fp = flist->sorted[j];
2404 if (!S_ISDIR(fp->mode))
2408 file->flags |= FLAG_DUPLICATE;
2409 else { /* Make sure we merge our vital flags. */
2410 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2411 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2421 "removing duplicate name %s from file list (%d)\n",
2422 f_name(file, fbuf), drop + flist->ndx_start);
2424 clear_file(flist->sorted[drop]);
2428 if (flist->low == drop) {
2430 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2439 flist->high = prev_i;
2442 /* We need to strip off the leading slashes for relative
2443 * paths, but this must be done _after_ the sorting phase. */
2444 for (i = flist->low; i <= flist->high; i++) {
2445 struct file_struct *file = flist->sorted[i];
2449 while (*file->dirname == '/')
2451 if (!*file->dirname)
2452 file->dirname = NULL;
2456 if (prune_empty_dirs && !am_sender) {
2457 int j, prev_depth = 0;
2459 prev_i = 0; /* It's OK that this isn't really true. */
2461 for (i = flist->low; i <= flist->high; i++) {
2462 struct file_struct *fp, *file = flist->sorted[i];
2464 /* This temporarily abuses the F_DEPTH() value for a
2465 * directory that is in a chain that might get pruned.
2466 * We restore the old value if it gets a reprieve. */
2467 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2468 /* Dump empty dirs when coming back down. */
2469 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2470 fp = flist->sorted[prev_i];
2471 if (F_DEPTH(fp) >= 0)
2473 prev_i = -F_DEPTH(fp)-1;
2476 prev_depth = F_DEPTH(file);
2477 if (is_excluded(f_name(file, fbuf), 1,
2479 /* Keep dirs through this dir. */
2480 for (j = prev_depth-1; ; j--) {
2481 fp = flist->sorted[prev_i];
2482 if (F_DEPTH(fp) >= 0)
2484 prev_i = -F_DEPTH(fp)-1;
2488 F_DEPTH(file) = -prev_i-1;
2491 /* Keep dirs through this non-dir. */
2492 for (j = prev_depth; ; j--) {
2493 fp = flist->sorted[prev_i];
2494 if (F_DEPTH(fp) >= 0)
2496 prev_i = -F_DEPTH(fp)-1;
2501 /* Dump all remaining empty dirs. */
2503 struct file_struct *fp = flist->sorted[prev_i];
2504 if (F_DEPTH(fp) >= 0)
2506 prev_i = -F_DEPTH(fp)-1;
2510 for (i = flist->low; i <= flist->high; i++) {
2511 if (F_IS_ACTIVE(flist->sorted[i]))
2515 for (i = flist->high; i >= flist->low; i--) {
2516 if (F_IS_ACTIVE(flist->sorted[i]))
2523 static void output_flist(struct file_list *flist)
2525 char uidbuf[16], gidbuf[16], depthbuf[16];
2526 struct file_struct *file;
2527 const char *root, *dir, *slash, *name, *trail;
2528 const char *who = who_am_i();
2531 rprintf(FINFO, "[%s] flist start=%d, end=%d, used=%d, low=%d, high=%d\n",
2532 who, flist->ndx_start, flist->ndx_end, flist->used, flist->low, flist->high);
2533 for (i = 0; i < flist->used; i++) {
2534 file = flist->sorted[i];
2535 if ((am_root || am_sender) && uid_ndx) {
2536 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2541 static char parens[] = "(\0)\0\0\0";
2542 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2543 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2544 pp, F_GROUP(file), pp + 2);
2548 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2549 if (F_IS_ACTIVE(file)) {
2550 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2551 if ((dir = file->dirname) == NULL)
2555 name = file->basename;
2556 trail = S_ISDIR(file->mode) ? "/" : "";
2558 root = dir = slash = name = trail = "";
2560 "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
2561 who, i + flist->ndx_start,
2562 root, dir, slash, name, trail,
2563 (int)file->mode, (double)F_LENGTH(file),
2564 uidbuf, gidbuf, file->flags);
2568 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2569 enum fnc_type { t_PATH, t_ITEM };
2571 static int found_prefix;
2573 /* Compare the names of two file_struct entities, similar to how strcmp()
2574 * would do if it were operating on the joined strings.
2576 * Some differences beginning with protocol_version 29: (1) directory names
2577 * are compared with an assumed trailing slash so that they compare in a
2578 * way that would cause them to sort immediately prior to any content they
2579 * may have; (2) a directory of any name compares after a non-directory of
2580 * any name at the same depth; (3) a directory with name "." compares prior
2581 * to anything else. These changes mean that a directory and a non-dir
2582 * with the same name will not compare as equal (protocol_version >= 29).
2584 * The dirname component can be an empty string, but the basename component
2585 * cannot (and never is in the current codebase). The basename component
2586 * may be NULL (for a removed item), in which case it is considered to be
2587 * after any existing item. */
2588 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2591 const uchar *c1, *c2;
2592 enum fnc_state state1, state2;
2593 enum fnc_type type1, type2;
2594 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2596 if (!f1 || !F_IS_ACTIVE(f1)) {
2597 if (!f2 || !F_IS_ACTIVE(f2))
2601 if (!f2 || !F_IS_ACTIVE(f2))
2604 c1 = (uchar*)f1->dirname;
2605 c2 = (uchar*)f2->dirname;
2609 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2610 c1 = (const uchar*)f1->basename;
2611 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2613 state1 = s_TRAILING;
2622 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2623 c2 = (const uchar*)f2->basename;
2624 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2626 state2 = s_TRAILING;
2636 return type1 == t_PATH ? 1 : -1;
2646 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2647 c1 = (const uchar*)f1->basename;
2648 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2650 state1 = s_TRAILING;
2656 state1 = s_TRAILING;
2657 if (type1 == t_PATH) {
2666 if (*c2 && type1 != type2)
2667 return type1 == t_PATH ? 1 : -1;
2676 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2677 c2 = (const uchar*)f2->basename;
2678 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2680 state2 = s_TRAILING;
2686 state2 = s_TRAILING;
2687 if (type2 == t_PATH) {
2700 return type1 == t_PATH ? 1 : -1;
2702 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
2707 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
2708 * not match if f2's basename is not an exact match of a path element in f1.
2709 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
2710 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
2714 return found_prefix;
2717 char *f_name_buf(void)
2719 static char names[5][MAXPATHLEN];
2720 static unsigned int n;
2722 n = (n + 1) % (sizeof names / sizeof names[0]);
2727 /* Return a copy of the full filename of a flist entry, using the indicated
2728 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
2729 * done because we checked the size when creating the file_struct entry.
2731 char *f_name(const struct file_struct *f, char *fbuf)
2733 if (!f || !F_IS_ACTIVE(f))
2737 fbuf = f_name_buf();
2740 int len = strlen(f->dirname);
2741 memcpy(fbuf, f->dirname, len);
2743 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
2745 strlcpy(fbuf, f->basename, MAXPATHLEN);
2750 /* Do a non-recursive scan of the named directory, possibly ignoring all
2751 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
2752 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
2753 * buffer (the functions we call will append names onto the end, but the old
2754 * dir value will be restored on exit). */
2755 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
2757 struct file_list *dirlist;
2758 char dirbuf[MAXPATHLEN];
2759 int save_recurse = recurse;
2760 int save_xfer_dirs = xfer_dirs;
2761 int save_prune_empty_dirs = prune_empty_dirs;
2764 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
2765 if (dlen >= MAXPATHLEN)
2770 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
2774 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, 0);
2775 xfer_dirs = save_xfer_dirs;
2776 recurse = save_recurse;
2778 flist_count_offset += dirlist->used;
2780 prune_empty_dirs = 0;
2781 dirlist->sorted = dirlist->files;
2782 clean_flist(dirlist, 0);
2783 prune_empty_dirs = save_prune_empty_dirs;
2786 output_flist(dirlist);