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 struct filter_list_struct filter_list;
83 extern struct filter_list_struct 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 flist_eof = 0; /* all the file-lists are now known */
102 #define NORMAL_NAME 0
103 #define SLASH_ENDING_NAME 1
104 #define DOTDIR_NAME 2
106 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
107 * internally, even if this platform does not allow files to have 64-bit inums.
108 * The only exception is if we're on a platform with no 64-bit type at all.
110 * Because we use read_longint() to get these off the wire, if you transfer
111 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
112 * machine with no 64-bit types then you will get an overflow error.
114 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
115 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
116 * be truncated. But it's a kind of silly thing to do anyhow. */
118 /* The tmp_* vars are used as a cache area by make_file() to store data
119 * that the sender doesn't need to remember in its file list. The data
120 * will survive just long enough to be used by send_file_entry(). */
121 static dev_t tmp_rdev;
122 #ifdef SUPPORT_HARD_LINKS
123 static int64 tmp_dev, tmp_ino;
125 static char tmp_sum[MAX_DIGEST_LEN];
127 static char empty_sum[MAX_DIGEST_LEN];
128 static int flist_count_offset; /* for --delete --progress */
130 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
131 static void output_flist(struct file_list *flist);
133 void init_flist(void)
135 if (DEBUG_GTE(FLIST, 4)) {
136 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
137 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
139 checksum_len = protocol_version < 21 ? 2
140 : protocol_version < 30 ? MD4_DIGEST_LEN
144 static int show_filelist_p(void)
146 return INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
149 static void start_filelist_progress(char *kind)
151 rprintf(FCLIENT, "%s ... ", kind);
152 output_needs_newline = 1;
156 static void emit_filelist_progress(int count)
158 rprintf(FCLIENT, " %d files...\r", count);
161 static void maybe_emit_filelist_progress(int count)
163 if (INFO_GTE(FLIST, 2) && show_filelist_p() && (count % 100) == 0)
164 emit_filelist_progress(count);
167 static void finish_filelist_progress(const struct file_list *flist)
169 if (INFO_GTE(FLIST, 2)) {
170 /* This overwrites the progress line */
171 rprintf(FINFO, "%d file%sto consider\n",
172 flist->used, flist->used == 1 ? " " : "s ");
174 output_needs_newline = 0;
175 rprintf(FINFO, "done\n");
179 void show_flist_stats(void)
184 /* Stat either a symlink or its referent, depending on the settings of
185 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
187 * If path is the name of a symlink, then the linkbuf buffer (which must hold
188 * MAXPATHLEN chars) will be set to the symlink's target string.
190 * The stat structure pointed to by stp will contain information about the
191 * link or the referent as appropriate, if they exist. */
192 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
195 if (link_stat(path, stp, copy_dirlinks) < 0)
197 if (S_ISLNK(stp->st_mode)) {
198 int llen = readlink(path, linkbuf, MAXPATHLEN - 1);
201 linkbuf[llen] = '\0';
202 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
203 if (INFO_GTE(SYMSAFE, 1)) {
204 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
207 return x_stat(path, stp, NULL);
209 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
210 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
211 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
212 llen - SYMLINK_PREFIX_LEN + 1);
217 return x_stat(path, stp, NULL);
221 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
225 return x_stat(path, stp, NULL);
226 if (x_lstat(path, stp, NULL) < 0)
228 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
230 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
235 return x_stat(path, stp, NULL);
239 static inline int is_daemon_excluded(const char *fname, int is_dir)
241 if (daemon_filter_list.head
242 && check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
249 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
251 if (daemon_filter_list.head) {
254 while ((slash = strchr(slash+1, '/')) != NULL) {
257 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
266 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
275 /* This function is used to check if a file should be included/excluded
276 * from the list of files based on its name and type etc. The value of
277 * filter_level is set to either SERVER_FILTERS or ALL_FILTERS. */
278 static int is_excluded(const char *fname, int is_dir, int filter_level)
280 #if 0 /* This currently never happens, so avoid a useless compare. */
281 if (filter_level == NO_FILTERS)
284 if (is_daemon_excluded(fname, is_dir))
286 if (filter_level != ALL_FILTERS)
289 && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
294 static void send_directory(int f, struct file_list *flist,
295 char *fbuf, int len, int flags);
297 static const char *pathname, *orig_dir;
298 static int pathname_len;
300 /* Make sure flist can hold at least flist->used + extra entries. */
301 static void flist_expand(struct file_list *flist, int extra)
303 struct file_struct **new_ptr;
305 if (flist->used + extra <= flist->malloced)
308 if (flist->malloced < FLIST_START)
309 flist->malloced = FLIST_START;
310 else if (flist->malloced >= FLIST_LINEAR)
311 flist->malloced += FLIST_LINEAR;
313 flist->malloced *= 2;
315 /* In case count jumped or we are starting the list
316 * with a known size just set it. */
317 if (flist->malloced < flist->used + extra)
318 flist->malloced = flist->used + extra;
320 new_ptr = realloc_array(flist->files, struct file_struct *,
323 if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
324 rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
326 big_num(sizeof flist->files[0] * flist->malloced),
327 (new_ptr == flist->files) ? " not" : "");
330 flist->files = new_ptr;
333 out_of_memory("flist_expand");
336 static void flist_done_allocating(struct file_list *flist)
338 void *ptr = pool_boundary(flist->file_pool, 8*1024);
339 if (flist->pool_boundary == ptr)
340 flist->pool_boundary = NULL; /* list didn't use any pool memory */
342 flist->pool_boundary = ptr;
345 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
346 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
347 * with dir == NULL taken to be the starting directory, and dirlen < 0
348 * indicating that strdup(dir) should be called and then the -dirlen length
349 * value checked to ensure that it is not daemon-excluded. */
350 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
353 char *cpy = strdup(dir);
355 change_dir(orig_dir, CD_SKIP_CHDIR);
356 if (path_is_daemon_excluded(cpy, 0))
362 if (pathname == F_PATHNAME(file))
364 dir = F_PATHNAME(file);
366 dirlen = strlen(dir);
367 } else if (pathname == dir)
369 if (dir && *dir != '/')
370 change_dir(orig_dir, CD_SKIP_CHDIR);
374 pathname_len = dirlen;
379 if (!change_dir(dir, CD_NORMAL)) {
381 io_error |= IOERR_GENERAL;
382 rsyserr(FERROR_XFER, errno, "change_dir %s failed", full_fname(dir));
384 change_dir(orig_dir, CD_NORMAL);
393 static void send_file_entry(int f, const char *fname, struct file_struct *file,
395 const char *symlink_name, int symlink_len,
397 int ndx, int first_ndx)
399 static time_t modtime;
401 #ifdef SUPPORT_HARD_LINKS
405 static uint32 rdev_major;
408 static const char *user_name, *group_name;
409 static char lastname[MAXPATHLEN];
410 #ifdef SUPPORT_HARD_LINKS
411 int first_hlink_ndx = -1;
416 /* Initialize starting value of xflags and adjust counts. */
417 if (S_ISREG(file->mode))
419 else if (S_ISDIR(file->mode)) {
421 if (protocol_version >= 30) {
422 if (file->flags & FLAG_CONTENT_DIR)
423 xflags = file->flags & FLAG_TOP_DIR;
424 else if (file->flags & FLAG_IMPLIED_DIR)
425 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
427 xflags = XMIT_NO_CONTENT_DIR;
429 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
431 if (S_ISLNK(file->mode))
432 stats.num_symlinks++;
433 else if (IS_DEVICE(file->mode))
435 else if (IS_SPECIAL(file->mode))
436 stats.num_specials++;
440 if (file->mode == mode)
441 xflags |= XMIT_SAME_MODE;
445 if (preserve_devices && IS_DEVICE(mode)) {
446 if (protocol_version < 28) {
447 if (tmp_rdev == rdev)
448 xflags |= XMIT_SAME_RDEV_pre28;
453 if ((uint32)major(rdev) == rdev_major)
454 xflags |= XMIT_SAME_RDEV_MAJOR;
456 rdev_major = major(rdev);
457 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
458 xflags |= XMIT_RDEV_MINOR_8_pre30;
460 } else if (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31) {
461 /* Special files don't need an rdev number, so just make
462 * the historical transmission of the value efficient. */
463 if (protocol_version < 28)
464 xflags |= XMIT_SAME_RDEV_pre28;
466 rdev = MAKEDEV(major(rdev), 0);
467 xflags |= XMIT_SAME_RDEV_MAJOR;
468 if (protocol_version < 30)
469 xflags |= XMIT_RDEV_MINOR_8_pre30;
471 } else if (protocol_version < 28)
472 rdev = MAKEDEV(0, 0);
473 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
474 xflags |= XMIT_SAME_UID;
478 user_name = add_uid(uid);
479 if (inc_recurse && user_name)
480 xflags |= XMIT_USER_NAME_FOLLOWS;
483 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
484 xflags |= XMIT_SAME_GID;
488 group_name = add_gid(gid);
489 if (inc_recurse && group_name)
490 xflags |= XMIT_GROUP_NAME_FOLLOWS;
493 if (file->modtime == modtime)
494 xflags |= XMIT_SAME_TIME;
496 modtime = file->modtime;
498 #ifdef SUPPORT_HARD_LINKS
500 if (protocol_version >= 30) {
501 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
502 first_hlink_ndx = (int32)(long)np->data - 1;
503 if (first_hlink_ndx < 0) {
504 np->data = (void*)(long)(first_ndx + ndx + 1);
505 xflags |= XMIT_HLINK_FIRST;
507 if (DEBUG_GTE(HLINK, 1)) {
508 if (first_hlink_ndx >= 0) {
509 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
510 who_am_i(), first_ndx + ndx, first_hlink_ndx,
511 first_hlink_ndx >= first_ndx ? "" : "un");
512 } else if (DEBUG_GTE(HLINK, 3)) {
513 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
514 who_am_i(), first_ndx + ndx,
515 big_num(tmp_dev), big_num(tmp_ino));
519 if (tmp_dev == dev) {
520 if (protocol_version >= 28)
521 xflags |= XMIT_SAME_DEV_pre30;
525 xflags |= XMIT_HLINKED;
530 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
532 l2 = strlen(fname+l1);
535 xflags |= XMIT_SAME_NAME;
537 xflags |= XMIT_LONG_NAME;
539 /* We must make sure we don't send a zero flag byte or the
540 * other end will terminate the flist transfer. Note that
541 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
542 * it's harmless way to add a bit to the first flag byte. */
543 if (protocol_version >= 28) {
544 if (!xflags && !S_ISDIR(mode))
545 xflags |= XMIT_TOP_DIR;
546 if ((xflags & 0xFF00) || !xflags) {
547 xflags |= XMIT_EXTENDED_FLAGS;
548 write_shortint(f, xflags);
550 write_byte(f, xflags);
552 if (!(xflags & 0xFF))
553 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
554 write_byte(f, xflags);
556 if (xflags & XMIT_SAME_NAME)
558 if (xflags & XMIT_LONG_NAME)
559 write_varint30(f, l2);
562 write_buf(f, fname + l1, l2);
564 #ifdef SUPPORT_HARD_LINKS
565 if (first_hlink_ndx >= 0) {
566 write_varint(f, first_hlink_ndx);
567 if (first_hlink_ndx >= first_ndx)
572 write_varlong30(f, F_LENGTH(file), 3);
573 if (!(xflags & XMIT_SAME_TIME)) {
574 if (protocol_version >= 30)
575 write_varlong(f, modtime, 4);
577 write_int(f, modtime);
579 if (!(xflags & XMIT_SAME_MODE))
580 write_int(f, to_wire_mode(mode));
581 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
582 if (protocol_version < 30)
585 write_varint(f, uid);
586 if (xflags & XMIT_USER_NAME_FOLLOWS) {
587 int len = strlen(user_name);
589 write_buf(f, user_name, len);
593 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
594 if (protocol_version < 30)
597 write_varint(f, gid);
598 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
599 int len = strlen(group_name);
601 write_buf(f, group_name, len);
605 if ((preserve_devices && IS_DEVICE(mode))
606 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
607 if (protocol_version < 28) {
608 if (!(xflags & XMIT_SAME_RDEV_pre28))
609 write_int(f, (int)rdev);
611 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
612 write_varint30(f, major(rdev));
613 if (protocol_version >= 30)
614 write_varint(f, minor(rdev));
615 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
616 write_byte(f, minor(rdev));
618 write_int(f, minor(rdev));
624 write_varint30(f, symlink_len);
625 write_buf(f, symlink_name, symlink_len);
629 #ifdef SUPPORT_HARD_LINKS
630 if (tmp_dev != 0 && protocol_version < 30) {
631 if (protocol_version < 26) {
632 /* 32-bit dev_t and ino_t */
633 write_int(f, (int32)dev);
634 write_int(f, (int32)tmp_ino);
636 /* 64-bit dev_t and ino_t */
637 if (!(xflags & XMIT_SAME_DEV_pre30))
638 write_longint(f, dev);
639 write_longint(f, tmp_ino);
644 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
649 /* Prior to 28, we sent a useless set of nulls. */
652 write_buf(f, sum, checksum_len);
655 #ifdef SUPPORT_HARD_LINKS
658 strlcpy(lastname, fname, MAXPATHLEN);
660 if (S_ISREG(mode) || S_ISLNK(mode))
661 stats.total_size += F_LENGTH(file);
664 static struct file_struct *recv_file_entry(struct file_list *flist,
667 static int64 modtime;
669 #ifdef SUPPORT_HARD_LINKS
673 static uint32 rdev_major;
676 static uint16 gid_flags;
677 static char lastname[MAXPATHLEN], *lastdir;
678 static int lastdir_depth, lastdir_len = -1;
679 static unsigned int del_hier_name_len = 0;
680 static int in_del_hier = 0;
681 char thisname[MAXPATHLEN];
682 unsigned int l1 = 0, l2 = 0;
683 int alloc_len, basename_len, linkname_len;
684 int extra_len = file_extra_cnt * EXTRA_LEN;
685 int first_hlink_ndx = -1;
687 const char *basename;
688 struct file_struct *file;
692 if (xflags & XMIT_SAME_NAME)
695 if (xflags & XMIT_LONG_NAME)
696 l2 = read_varint30(f);
700 if (l2 >= MAXPATHLEN - l1) {
702 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
703 xflags, l1, l2, lastname, who_am_i());
704 overflow_exit("recv_file_entry");
707 strlcpy(thisname, lastname, l1 + 1);
708 read_sbuf(f, &thisname[l1], l2);
709 thisname[l1 + l2] = 0;
711 /* Abuse basename_len for a moment... */
712 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
715 if (ic_recv != (iconv_t)-1) {
718 INIT_CONST_XBUF(outbuf, thisname);
719 INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
721 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
722 io_error |= IOERR_GENERAL;
724 "[%s] cannot convert filename: %s (%s)\n",
725 who_am_i(), lastname, strerror(errno));
728 thisname[outbuf.len] = '\0';
733 clean_fname(thisname, 0);
736 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
738 if ((basename = strrchr(thisname, '/')) != NULL) {
739 int len = basename++ - thisname;
740 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
741 lastdir = new_array(char, len + 1);
742 memcpy(lastdir, thisname, len);
745 lastdir_depth = count_dir_elements(lastdir);
749 basename_len = strlen(basename) + 1; /* count the '\0' */
751 #ifdef SUPPORT_HARD_LINKS
752 if (protocol_version >= 30
753 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
754 first_hlink_ndx = read_varint(f);
755 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
757 "hard-link reference out of range: %d (%d)\n",
758 first_hlink_ndx, flist->ndx_start + flist->used);
759 exit_cleanup(RERR_PROTOCOL);
761 if (DEBUG_GTE(HLINK, 1)) {
762 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
763 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
764 first_hlink_ndx >= flist->ndx_start ? "" : "un");
766 if (first_hlink_ndx >= flist->ndx_start) {
767 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
768 file_length = F_LENGTH(first);
769 modtime = first->modtime;
772 uid = F_OWNER(first);
774 gid = F_GROUP(first);
775 if (preserve_devices && IS_DEVICE(mode)) {
776 uint32 *devp = F_RDEV_P(first);
777 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
778 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
780 if (preserve_links && S_ISLNK(mode))
781 linkname_len = strlen(F_SYMLINK(first)) + 1;
789 file_length = read_varlong30(f, 3);
790 if (!(xflags & XMIT_SAME_TIME)) {
791 if (protocol_version >= 30) {
792 modtime = read_varlong(f, 4);
793 #if SIZEOF_TIME_T < SIZEOF_INT64
794 if (!am_generator && (int64)(time_t)modtime != modtime) {
796 "Time value of %s truncated on receiver.\n",
801 modtime = read_int(f);
803 if (!(xflags & XMIT_SAME_MODE))
804 mode = from_wire_mode(read_int(f));
806 if (chmod_modes && !S_ISLNK(mode) && mode)
807 mode = tweak_mode(mode, chmod_modes);
809 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
810 if (protocol_version < 30)
811 uid = (uid_t)read_int(f);
813 uid = (uid_t)read_varint(f);
814 if (xflags & XMIT_USER_NAME_FOLLOWS)
815 uid = recv_user_name(f, uid);
816 else if (inc_recurse && am_root && (!numeric_ids || usermap))
817 uid = match_uid(uid);
820 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
821 if (protocol_version < 30)
822 gid = (gid_t)read_int(f);
824 gid = (gid_t)read_varint(f);
826 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
827 gid = recv_group_name(f, gid, &gid_flags);
828 else if (inc_recurse && (!am_root || !numeric_ids || groupmap))
829 gid = match_gid(gid, &gid_flags);
833 if ((preserve_devices && IS_DEVICE(mode))
834 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
835 if (protocol_version < 28) {
836 if (!(xflags & XMIT_SAME_RDEV_pre28))
837 rdev = (dev_t)read_int(f);
840 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
841 rdev_major = read_varint30(f);
842 if (protocol_version >= 30)
843 rdev_minor = read_varint(f);
844 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
845 rdev_minor = read_byte(f);
847 rdev_minor = read_int(f);
848 rdev = MAKEDEV(rdev_major, rdev_minor);
851 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
853 } else if (protocol_version < 28)
854 rdev = MAKEDEV(0, 0);
857 if (preserve_links && S_ISLNK(mode)) {
858 linkname_len = read_varint30(f) + 1; /* count the '\0' */
859 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
860 rprintf(FERROR, "overflow: linkname_len=%d\n",
862 overflow_exit("recv_file_entry");
865 /* We don't know how much extra room we need to convert
866 * the as-yet-unread symlink data, so let's hope that a
867 * double-size buffer is plenty. */
868 if (sender_symlink_iconv)
872 linkname_len += SYMLINK_PREFIX_LEN;
878 #ifdef SUPPORT_HARD_LINKS
880 if (preserve_hard_links) {
881 if (protocol_version < 28 && S_ISREG(mode))
882 xflags |= XMIT_HLINKED;
883 if (xflags & XMIT_HLINKED)
884 extra_len += (inc_recurse+1) * EXTRA_LEN;
889 /* Directories need an extra int32 for the default ACL. */
890 if (preserve_acls && S_ISDIR(mode))
891 extra_len += EXTRA_LEN;
894 if (always_checksum && S_ISREG(mode))
895 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
897 #if SIZEOF_INT64 >= 8
898 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
899 extra_len += EXTRA_LEN;
901 if (file_length < 0) {
902 rprintf(FERROR, "Offset underflow: file-length is negative\n");
903 exit_cleanup(RERR_UNSUPPORTED);
906 if (inc_recurse && S_ISDIR(mode)) {
907 if (one_file_system) {
908 /* Room to save the dir's device for -x */
909 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
911 pool = dir_flist->file_pool;
913 pool = flist->file_pool;
915 #if EXTRA_ROUNDING > 0
916 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
917 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
920 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
922 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
924 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
926 file = (struct file_struct *)bp;
927 bp += FILE_STRUCT_LEN;
929 memcpy(bp, basename, basename_len);
931 #ifdef SUPPORT_HARD_LINKS
932 if (xflags & XMIT_HLINKED)
933 file->flags |= FLAG_HLINKED;
935 file->modtime = (time_t)modtime;
936 file->len32 = (uint32)file_length;
937 #if SIZEOF_INT64 >= 8
938 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
939 #if SIZEOF_CAPITAL_OFF_T < 8
940 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
941 exit_cleanup(RERR_UNSUPPORTED);
943 file->flags |= FLAG_LENGTH64;
944 OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
953 file->flags |= gid_flags;
956 F_NDX(file) = flist->used + flist->ndx_start;
958 if (basename != thisname) {
959 file->dirname = lastdir;
960 F_DEPTH(file) = lastdir_depth + 1;
965 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
967 if (protocol_version >= 30) {
968 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
969 if (xflags & XMIT_TOP_DIR)
970 file->flags |= FLAG_TOP_DIR;
971 file->flags |= FLAG_CONTENT_DIR;
972 } else if (xflags & XMIT_TOP_DIR)
973 file->flags |= FLAG_IMPLIED_DIR;
974 } else if (xflags & XMIT_TOP_DIR) {
975 in_del_hier = recurse;
976 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
977 if (relative_paths && del_hier_name_len > 2
978 && lastname[del_hier_name_len-1] == '.'
979 && lastname[del_hier_name_len-2] == '/')
980 del_hier_name_len -= 2;
981 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
982 } else if (in_del_hier) {
983 if (!relative_paths || !del_hier_name_len
984 || (l1 >= del_hier_name_len
985 && lastname[del_hier_name_len] == '/'))
986 file->flags |= FLAG_CONTENT_DIR;
992 if (preserve_devices && IS_DEVICE(mode)) {
993 uint32 *devp = F_RDEV_P(file);
994 DEV_MAJOR(devp) = major(rdev);
995 DEV_MINOR(devp) = minor(rdev);
1001 if (first_hlink_ndx >= flist->ndx_start) {
1002 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1003 memcpy(bp, F_SYMLINK(first), linkname_len);
1005 if (munge_symlinks) {
1006 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
1007 bp += SYMLINK_PREFIX_LEN;
1008 linkname_len -= SYMLINK_PREFIX_LEN;
1011 if (sender_symlink_iconv) {
1014 alloc_len = linkname_len;
1017 /* Read the symlink data into the end of our double-sized
1018 * buffer and then convert it into the right spot. */
1019 INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
1020 linkname_len - 1, (size_t)-1);
1021 read_sbuf(f, inbuf.buf, inbuf.len);
1022 INIT_XBUF(outbuf, bp, 0, alloc_len);
1024 if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
1025 io_error |= IOERR_GENERAL;
1026 rprintf(FERROR_XFER,
1027 "[%s] cannot convert symlink data for: %s (%s)\n",
1028 who_am_i(), full_fname(thisname), strerror(errno));
1029 bp = (char*)file->basename;
1033 bp[outbuf.len] = '\0';
1036 read_sbuf(f, bp, linkname_len - 1);
1037 if (sanitize_paths && !munge_symlinks && *bp)
1038 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1043 #ifdef SUPPORT_HARD_LINKS
1044 if (preserve_hard_links && xflags & XMIT_HLINKED) {
1045 if (protocol_version >= 30) {
1046 if (xflags & XMIT_HLINK_FIRST) {
1047 F_HL_GNUM(file) = flist->ndx_start + flist->used;
1049 F_HL_GNUM(file) = first_hlink_ndx;
1051 static int32 cnt = 0;
1052 struct ht_int64_node *np;
1055 if (protocol_version < 26) {
1059 if (!(xflags & XMIT_SAME_DEV_pre30))
1060 dev = read_longint(f);
1061 ino = read_longint(f);
1063 np = idev_find(dev, ino);
1064 ndx = (int32)(long)np->data - 1;
1067 np->data = (void*)(long)cnt;
1069 F_HL_GNUM(file) = ndx;
1074 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1078 /* Prior to 28, we get a useless set of nulls. */
1081 if (first_hlink_ndx >= flist->ndx_start) {
1082 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1083 memcpy(bp, F_SUM(first), checksum_len);
1085 read_buf(f, bp, checksum_len);
1089 if (preserve_acls && !S_ISLNK(mode))
1090 receive_acl(file, f);
1092 #ifdef SUPPORT_XATTRS
1093 if (preserve_xattrs)
1094 receive_xattr(file, f );
1097 if (S_ISREG(mode) || S_ISLNK(mode))
1098 stats.total_size += file_length;
1103 /* Create a file_struct for a named file by reading its stat() information
1104 * and performing extensive checks against global options.
1106 * Returns a pointer to the new file struct, or NULL if there was an error
1107 * or this file should be excluded.
1109 * Note: Any error (here or in send_file_name) that results in the omission of
1110 * an existent source file from the file list should set
1111 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1112 * destination if --delete is on. */
1113 struct file_struct *make_file(const char *fname, struct file_list *flist,
1114 STRUCT_STAT *stp, int flags, int filter_level)
1116 static char *lastdir;
1117 static int lastdir_len = -1;
1118 struct file_struct *file;
1119 char thisname[MAXPATHLEN];
1120 char linkname[MAXPATHLEN];
1121 int alloc_len, basename_len, linkname_len;
1122 int extra_len = file_extra_cnt * EXTRA_LEN;
1123 const char *basename;
1128 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1129 io_error |= IOERR_GENERAL;
1130 rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1133 clean_fname(thisname, 0);
1135 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1137 if (stp && (S_ISDIR(stp->st_mode) || stp->st_mode == 0)) {
1138 /* This is needed to handle a "symlink/." with a --relative
1139 * dir, or a request to delete a specific file. */
1141 *linkname = '\0'; /* make IBM code checker happy */
1142 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1143 int save_errno = errno;
1144 /* See if file is excluded before reporting an error. */
1145 if (filter_level != NO_FILTERS
1146 && (is_excluded(thisname, 0, filter_level)
1147 || is_excluded(thisname, 1, filter_level))) {
1148 if (ignore_perishable && save_errno != ENOENT)
1149 non_perishable_cnt++;
1152 if (save_errno == ENOENT) {
1153 #ifdef SUPPORT_LINKS
1154 /* When our options tell us to follow a symlink that
1155 * points nowhere, tell the user about the symlink
1156 * instead of giving a "vanished" message. We only
1157 * dereference a symlink if one of the --copy*links
1158 * options was specified, so there's no need for the
1159 * extra lstat() if one of these options isn't on. */
1160 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1161 && x_lstat(thisname, &st, NULL) == 0
1162 && S_ISLNK(st.st_mode)) {
1163 io_error |= IOERR_GENERAL;
1164 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1165 full_fname(thisname));
1169 enum logcode c = am_daemon && protocol_version < 28
1170 ? FERROR : FWARNING;
1171 io_error |= IOERR_VANISHED;
1172 rprintf(c, "file has vanished: %s\n",
1173 full_fname(thisname));
1176 io_error |= IOERR_GENERAL;
1177 rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
1178 full_fname(thisname));
1181 } else if (st.st_mode == 0) {
1182 io_error |= IOERR_GENERAL;
1183 rprintf(FINFO, "skipping file with bogus (zero) st_mode: %s\n",
1184 full_fname(thisname));
1188 if (filter_level == NO_FILTERS)
1191 if (S_ISDIR(st.st_mode)) {
1193 rprintf(FINFO, "skipping directory %s\n", thisname);
1196 /* -x only affects dirs because we need to avoid recursing
1197 * into a mount-point directory, not to avoid copying a
1198 * symlinked file if -L (or similar) was specified. */
1199 if (one_file_system && st.st_dev != filesystem_dev
1200 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1201 if (one_file_system > 1) {
1202 if (INFO_GTE(MOUNT, 1)) {
1204 "[%s] skipping mount-point dir %s\n",
1205 who_am_i(), thisname);
1209 flags |= FLAG_MOUNT_DIR;
1210 flags &= ~FLAG_CONTENT_DIR;
1213 flags &= ~FLAG_CONTENT_DIR;
1215 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1216 if (ignore_perishable)
1217 non_perishable_cnt++;
1221 if (lp_ignore_nonreadable(module_id)) {
1222 #ifdef SUPPORT_LINKS
1223 if (!S_ISLNK(st.st_mode))
1225 if (access(thisname, R_OK) != 0)
1231 /* Only divert a directory in the main transfer. */
1233 if (flist->prev && S_ISDIR(st.st_mode)
1234 && flags & FLAG_DIVERT_DIRS) {
1235 /* Room for parent/sibling/next-child info. */
1236 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1238 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1239 pool = dir_flist->file_pool;
1241 pool = flist->file_pool;
1244 /* Directories need an extra int32 for the default ACL. */
1245 if (preserve_acls && S_ISDIR(st.st_mode))
1246 extra_len += EXTRA_LEN;
1251 if (DEBUG_GTE(FLIST, 2)) {
1252 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1253 who_am_i(), thisname, filter_level);
1256 if ((basename = strrchr(thisname, '/')) != NULL) {
1257 int len = basename++ - thisname;
1258 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1259 lastdir = new_array(char, len + 1);
1260 memcpy(lastdir, thisname, len);
1261 lastdir[len] = '\0';
1265 basename = thisname;
1266 basename_len = strlen(basename) + 1; /* count the '\0' */
1268 #ifdef SUPPORT_LINKS
1269 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1274 #if SIZEOF_CAPITAL_OFF_T >= 8
1275 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1276 extra_len += EXTRA_LEN;
1279 if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
1280 file_checksum(thisname, tmp_sum, st.st_size);
1281 if (sender_keeps_checksum)
1282 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1285 #if EXTRA_ROUNDING > 0
1286 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1287 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1290 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1293 bp = pool_alloc(pool, alloc_len, "make_file");
1295 if (!(bp = new_array(char, alloc_len)))
1296 out_of_memory("make_file");
1299 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1301 file = (struct file_struct *)bp;
1302 bp += FILE_STRUCT_LEN;
1304 memcpy(bp, basename, basename_len);
1306 #ifdef SUPPORT_HARD_LINKS
1307 if (preserve_hard_links && flist && flist->prev) {
1308 if (protocol_version >= 28
1309 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1310 : S_ISREG(st.st_mode)) {
1311 tmp_dev = (int64)st.st_dev + 1;
1312 tmp_ino = (int64)st.st_ino;
1318 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1319 if (IS_DEVICE(st.st_mode)) {
1320 tmp_rdev = st.st_rdev;
1322 } else if (IS_SPECIAL(st.st_mode))
1326 file->flags = flags;
1327 file->modtime = st.st_mtime;
1328 file->len32 = (uint32)st.st_size;
1329 #if SIZEOF_CAPITAL_OFF_T >= 8
1330 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1331 file->flags |= FLAG_LENGTH64;
1332 OPT_EXTRA(file, 0)->unum = (uint32)(st.st_size >> 32);
1335 file->mode = st.st_mode;
1336 if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
1337 F_OWNER(file) = st.st_uid;
1338 if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
1339 F_GROUP(file) = st.st_gid;
1341 if (basename != thisname)
1342 file->dirname = lastdir;
1344 #ifdef SUPPORT_LINKS
1346 memcpy(bp + basename_len, linkname, linkname_len);
1350 F_PATHNAME(file) = pathname;
1352 F_DEPTH(file) = extra_len / EXTRA_LEN;
1354 if (basename_len == 0+1) {
1360 if (sender_keeps_checksum && S_ISREG(st.st_mode))
1361 memcpy(F_SUM(file), tmp_sum, checksum_len);
1364 F_NDX(file) = stats.num_dirs;
1369 /* Only called for temporary file_struct entries created by make_file(). */
1370 void unmake_file(struct file_struct *file)
1372 free(REQ_EXTRA(file, F_DEPTH(file)));
1375 static struct file_struct *send_file_name(int f, struct file_list *flist,
1376 const char *fname, STRUCT_STAT *stp,
1377 int flags, int filter_level)
1379 struct file_struct *file;
1381 file = make_file(fname, flist, stp, flags, filter_level);
1385 if (chmod_modes && !S_ISLNK(file->mode) && file->mode)
1386 file->mode = tweak_mode(file->mode, chmod_modes);
1389 char fbuf[MAXPATHLEN];
1390 #ifdef SUPPORT_LINKS
1391 const char *symlink_name;
1394 char symlink_buf[MAXPATHLEN];
1397 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1402 #ifdef SUPPORT_LINKS
1403 if (preserve_links && S_ISLNK(file->mode)) {
1404 symlink_name = F_SYMLINK(file);
1405 symlink_len = strlen(symlink_name);
1406 if (symlink_len == 0) {
1407 io_error |= IOERR_GENERAL;
1409 rprintf(FERROR_XFER,
1410 "skipping symlink with 0-length value: %s\n",
1415 symlink_name = NULL;
1421 if (ic_send != (iconv_t)-1) {
1424 INIT_CONST_XBUF(outbuf, fbuf);
1426 if (file->dirname) {
1427 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1428 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1429 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
1432 fbuf[outbuf.len++] = '/';
1435 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1436 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1438 io_error |= IOERR_GENERAL;
1439 rprintf(FERROR_XFER,
1440 "[%s] cannot convert filename: %s (%s)\n",
1441 who_am_i(), f_name(file, fbuf), strerror(errno));
1444 fbuf[outbuf.len] = '\0';
1446 #ifdef SUPPORT_LINKS
1447 if (symlink_len && sender_symlink_iconv) {
1448 INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
1449 INIT_CONST_XBUF(outbuf, symlink_buf);
1450 if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
1451 io_error |= IOERR_GENERAL;
1453 rprintf(FERROR_XFER,
1454 "[%s] cannot convert symlink data for: %s (%s)\n",
1455 who_am_i(), full_fname(fbuf), strerror(errno));
1458 symlink_buf[outbuf.len] = '\0';
1460 symlink_name = symlink_buf;
1461 symlink_len = outbuf.len;
1469 if (preserve_acls && !S_ISLNK(file->mode)) {
1470 sx.st.st_mode = file->mode;
1471 if (get_acl(fname, &sx) < 0) {
1472 io_error |= IOERR_GENERAL;
1477 #ifdef SUPPORT_XATTRS
1478 if (preserve_xattrs) {
1479 if (get_xattr(fname, &sx) < 0) {
1480 io_error |= IOERR_GENERAL;
1486 send_file_entry(f, fbuf, file,
1487 #ifdef SUPPORT_LINKS
1488 symlink_name, symlink_len,
1490 flist->used, flist->ndx_start);
1493 if (preserve_acls && !S_ISLNK(file->mode)) {
1498 #ifdef SUPPORT_XATTRS
1499 if (preserve_xattrs) {
1500 F_XATTR(file) = send_xattr(&sx, f);
1506 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1508 flist_expand(flist, 1);
1509 flist->files[flist->used++] = file;
1514 static void send_if_directory(int f, struct file_list *flist,
1515 struct file_struct *file,
1516 char *fbuf, unsigned int ol,
1519 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1521 if (S_ISDIR(file->mode)
1522 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1524 unsigned int len = strlen(fbuf);
1525 if (len > 1 && fbuf[len-1] == '/')
1527 if (len >= MAXPATHLEN - 1) {
1528 io_error |= IOERR_GENERAL;
1529 rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
1533 save_filters = push_local_filters(fbuf, len);
1534 send_directory(f, flist, fbuf, len, flags);
1535 pop_local_filters(save_filters);
1542 static int file_compare(const void *file1, const void *file2)
1544 return f_name_cmp(*(struct file_struct **)file1,
1545 *(struct file_struct **)file2);
1548 /* The guts of a merge-sort algorithm. This was derived from the glibc
1549 * version, but I (Wayne) changed the merge code to do less copying and
1550 * to require only half the amount of temporary memory. */
1551 static void fsort_tmp(struct file_struct **fp, size_t num,
1552 struct file_struct **tmp)
1554 struct file_struct **f1, **f2, **t;
1563 fsort_tmp(f1, n1, tmp);
1565 fsort_tmp(f2, n2, tmp);
1567 while (f_name_cmp(*f1, *f2) <= 0) {
1574 memcpy(t, f1, n1 * PTR_SIZE);
1576 *f1++ = *f2++, n2--;
1578 while (n1 > 0 && n2 > 0) {
1579 if (f_name_cmp(*t, *f2) <= 0)
1582 *f1++ = *f2++, n2--;
1586 memcpy(f1, t, n1 * PTR_SIZE);
1589 /* This file-struct sorting routine makes sure that any identical names in
1590 * the file list stay in the same order as they were in the original list.
1591 * This is particularly vital in inc_recurse mode where we expect a sort
1592 * on the flist to match the exact order of a sort on the dir_flist. */
1593 static void fsort(struct file_struct **fp, size_t num)
1599 qsort(fp, num, PTR_SIZE, file_compare);
1601 struct file_struct **tmp = new_array(struct file_struct *,
1603 fsort_tmp(fp, num, tmp);
1608 /* We take an entire set of sibling dirs from the sorted flist and link them
1609 * into the tree, setting the appropriate parent/child/sibling pointers. */
1610 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1615 int32 *parent_dp = parent_ndx < 0 ? NULL
1616 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1618 flist_expand(dir_flist, dir_cnt);
1619 dir_flist->sorted = dir_flist->files;
1621 for (i = 0; dir_cnt; i++) {
1622 struct file_struct *file = from_flist->sorted[i];
1624 if (!S_ISDIR(file->mode))
1627 dir_flist->files[dir_flist->used++] = file;
1630 if (file->basename[0] == '.' && file->basename[1] == '\0')
1634 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1636 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1638 send_dir_ndx = dir_flist->used - 1;
1640 dp = F_DIR_NODE_P(file);
1641 DIR_PARENT(dp) = parent_ndx;
1642 DIR_FIRST_CHILD(dp) = -1;
1645 DIR_NEXT_SIBLING(dp) = -1;
1648 static void interpret_stat_error(const char *fname, int is_dir)
1650 if (errno == ENOENT) {
1651 io_error |= IOERR_VANISHED;
1652 rprintf(FWARNING, "%s has vanished: %s\n",
1653 is_dir ? "directory" : "file", full_fname(fname));
1655 io_error |= IOERR_GENERAL;
1656 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1661 /* This function is normally called by the sender, but the receiving side also
1662 * calls it from get_dirlist() with f set to -1 so that we just construct the
1663 * file list in memory without sending it over the wire. Also, get_dirlist()
1664 * might call this with f set to -2, which also indicates that local filter
1665 * rules should be ignored. */
1666 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1673 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1674 int start = flist->used;
1675 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1677 assert(flist != NULL);
1679 if (!(d = opendir(fbuf))) {
1680 if (errno == ENOENT) {
1681 if (am_sender) /* Can abuse this for vanished error w/ENOENT: */
1682 interpret_stat_error(fbuf, True);
1685 io_error |= IOERR_GENERAL;
1686 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1691 if (len != 1 || *fbuf != '/')
1694 remainder = MAXPATHLEN - (p - fbuf);
1696 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1697 char *dname = d_name(di);
1698 if (dname[0] == '.' && (dname[1] == '\0'
1699 || (dname[1] == '.' && dname[2] == '\0')))
1701 if (strlcpy(p, dname, remainder) >= remainder) {
1702 io_error |= IOERR_GENERAL;
1703 rprintf(FERROR_XFER,
1704 "cannot send long-named file %s\n",
1708 if (dname[0] == '\0') {
1709 io_error |= IOERR_GENERAL;
1710 rprintf(FERROR_XFER,
1711 "cannot send file with empty name in %s\n",
1716 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1722 io_error |= IOERR_GENERAL;
1723 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1728 if (f >= 0 && recurse && !divert_dirs) {
1729 int i, end = flist->used - 1;
1730 /* send_if_directory() bumps flist->used, so use "end". */
1731 for (i = start; i <= end; i++)
1732 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1736 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1737 char *start, char *limit, int flags, char name_type)
1739 static char lastpath[MAXPATHLEN] = "";
1740 static int lastpath_len = 0;
1741 static struct file_struct *lastpath_struct = NULL;
1742 struct file_struct *file;
1743 item_list *relname_list;
1744 relnamecache **rnpp;
1745 int len, need_new_dir, depth = 0;
1746 struct filter_list_struct save_filter_list = filter_list;
1748 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1749 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1752 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1753 && lastpath_len == limit - fname
1754 && strncmp(lastpath, fname, lastpath_len) == 0)
1759 char *tp = fname, *lp = lastpath;
1760 /* Skip any initial directories in our path that we
1761 * have in common with lastpath. */
1762 assert(start == fname);
1763 for ( ; ; tp++, lp++) {
1765 if (*lp == '/' || *lp == '\0')
1780 int save_copy_links = copy_links;
1781 int save_xfer_dirs = xfer_dirs;
1784 copy_links = xfer_dirs = 1;
1788 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1790 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1792 if (!inc_recurse && file && S_ISDIR(file->mode))
1793 change_local_filter_dir(fname, strlen(fname), depth);
1797 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1799 if (file && !S_ISDIR(file->mode))
1801 lastpath_struct = file;
1802 } else if (file && S_ISDIR(file->mode))
1803 change_local_filter_dir(fname, strlen(fname), ++depth);
1805 strlcpy(lastpath, fname, sizeof lastpath);
1806 lastpath_len = limit - fname;
1810 copy_links = save_copy_links;
1811 xfer_dirs = save_xfer_dirs;
1817 if (!lastpath_struct)
1818 goto done; /* dir must have vanished */
1820 len = strlen(limit+1);
1821 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1822 if (!relname_list) {
1823 if (!(relname_list = new0(item_list)))
1824 out_of_memory("send_implied_dirs");
1825 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1827 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1828 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1829 out_of_memory("send_implied_dirs");
1830 (*rnpp)->name_type = name_type;
1831 strlcpy((*rnpp)->fname, limit+1, len + 1);
1834 filter_list = save_filter_list;
1837 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1839 char fbuf[MAXPATHLEN];
1840 item_list *relname_list;
1841 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1845 dlen = strlen(fbuf);
1847 if (!change_pathname(file, NULL, 0))
1848 exit_cleanup(RERR_FILESELECT);
1850 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1852 if (file->flags & FLAG_CONTENT_DIR) {
1853 if (one_file_system) {
1855 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1856 interpret_stat_error(fbuf, True);
1859 filesystem_dev = st.st_dev;
1861 send_directory(f, flist, fbuf, dlen, flags);
1864 if (!relative_paths)
1867 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1871 for (j = 0; j < relname_list->count; j++) {
1873 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1874 char name_type = rnp->name_type;
1877 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1879 if (len >= (int)sizeof fbuf)
1880 continue; /* Impossible... */
1882 slash = strchr(fbuf+dlen+1, '/');
1884 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1888 if (name_type != NORMAL_NAME) {
1890 if (link_stat(fbuf, &st, 1) != 0) {
1891 interpret_stat_error(fbuf, True);
1894 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1896 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1902 void send_extra_file_list(int f, int at_least)
1904 struct file_list *flist;
1907 int old_cnt, save_io_error = io_error;
1912 /* Keep sending data until we have the requested number of
1913 * files in the upcoming file-lists. */
1914 old_cnt = cur_flist->used;
1915 for (flist = first_flist; flist != cur_flist; flist = flist->next)
1916 old_cnt += flist->used;
1917 while (file_total - old_cnt < at_least) {
1918 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1919 int dir_ndx, dstart = stats.num_dirs;
1920 const char *pathname = F_PATHNAME(file);
1923 flist = flist_new(0, "send_extra_file_list");
1924 start_write = stats.total_written;
1927 dir_ndx = F_NDX(file);
1929 dir_ndx = send_dir_ndx;
1930 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1931 flist->parent_ndx = dir_ndx;
1933 send1extra(f, file, flist);
1934 prev_flags = file->flags;
1935 dp = F_DIR_NODE_P(file);
1937 /* If there are any duplicate directory names that follow, we
1938 * send all the dirs together in one file-list. The dir_flist
1939 * tree links all the child subdirs onto the last dup dir. */
1940 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1941 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1942 send_dir_ndx = dir_ndx;
1943 file = dir_flist->sorted[dir_ndx];
1944 /* Try to avoid some duplicate scanning of identical dirs. */
1945 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1946 file->flags &= ~FLAG_CONTENT_DIR;
1947 send1extra(f, file, flist);
1948 prev_flags = file->flags;
1949 dp = F_DIR_NODE_P(file);
1952 if (protocol_version < 31 || io_error == save_io_error || ignore_errors)
1955 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
1956 write_varint(f, io_error);
1959 if (need_unsorted_flist) {
1960 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
1961 out_of_memory("send_extra_file_list");
1962 memcpy(flist->sorted, flist->files,
1963 flist->used * sizeof (struct file_struct*));
1965 flist->sorted = flist->files;
1967 flist_sort_and_clean(flist, 0);
1969 add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
1970 flist_done_allocating(flist);
1972 file_total += flist->used;
1973 stats.flist_size += stats.total_written - start_write;
1974 stats.num_files += flist->used;
1975 if (DEBUG_GTE(FLIST, 3))
1976 output_flist(flist);
1978 if (DIR_FIRST_CHILD(dp) >= 0) {
1979 send_dir_ndx = DIR_FIRST_CHILD(dp);
1982 while (DIR_NEXT_SIBLING(dp) < 0) {
1983 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
1984 write_ndx(f, NDX_FLIST_EOF);
1986 change_local_filter_dir(NULL, 0, 0);
1990 file = dir_flist->sorted[send_dir_ndx];
1991 dp = F_DIR_NODE_P(file);
1993 send_dir_ndx = DIR_NEXT_SIBLING(dp);
1998 if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
1999 send_msg_int(MSG_IO_ERROR, io_error);
2002 struct file_list *send_file_list(int f, int argc, char *argv[])
2004 static const char *lastdir;
2005 static int lastdir_len = -1;
2009 struct file_list *flist;
2010 struct timeval start_tv, end_tv;
2013 int disable_buffering;
2014 int flags = recurse ? FLAG_CONTENT_DIR : 0;
2015 int reading_remotely = filesfrom_host != NULL;
2016 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
2018 | (filesfrom_convert ? RL_CONVERT : 0)
2020 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
2021 int implied_dot_dir = 0;
2023 rprintf(FLOG, "building file list\n");
2024 if (show_filelist_p())
2025 start_filelist_progress("building file list");
2026 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2027 rprintf(FCLIENT, "sending incremental file list\n");
2029 start_write = stats.total_written;
2030 gettimeofday(&start_tv, NULL);
2032 if (relative_paths && protocol_version >= 30)
2033 implied_dirs = 1; /* We send flagged implied dirs */
2035 #ifdef SUPPORT_HARD_LINKS
2036 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2040 flist = cur_flist = flist_new(0, "send_file_list");
2042 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2043 flags |= FLAG_DIVERT_DIRS;
2045 dir_flist = cur_flist;
2047 disable_buffering = io_start_buffering_out(f);
2048 if (filesfrom_fd >= 0) {
2049 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2050 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2051 full_fname(argv[0]));
2052 exit_cleanup(RERR_FILESELECT);
2058 orig_dir = strdup(curr_dir);
2061 char fbuf[MAXPATHLEN], *fn, name_type;
2064 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2066 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2070 strlcpy(fbuf, *argv++, MAXPATHLEN);
2072 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2076 if (relative_paths) {
2077 /* We clean up fbuf below. */
2078 name_type = NORMAL_NAME;
2079 } else if (!len || fbuf[len - 1] == '/') {
2080 if (len == 2 && fbuf[0] == '.') {
2081 /* Turn "./" into just "." rather than "./." */
2084 if (len + 1 >= MAXPATHLEN)
2085 overflow_exit("send_file_list");
2089 name_type = DOTDIR_NAME;
2090 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2091 && (len == 2 || fbuf[len-3] == '/')) {
2092 if (len + 2 >= MAXPATHLEN)
2093 overflow_exit("send_file_list");
2097 name_type = DOTDIR_NAME;
2098 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2099 name_type = DOTDIR_NAME;
2101 name_type = NORMAL_NAME;
2105 if (!relative_paths) {
2106 p = strrchr(fbuf, '/');
2113 len -= p - fbuf + 1;
2118 if ((p = strstr(fbuf, "/./")) != NULL) {
2124 clean_fname(dir, 0);
2130 *--fn = '\0'; /* ensure room for '.' */
2133 /* A leading ./ can be used in relative mode to affect
2134 * the dest dir without its name being in the path. */
2135 if (*fn == '.' && fn[1] == '/' && !implied_dot_dir) {
2136 send_file_name(f, flist, ".", NULL,
2137 (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR,
2139 implied_dot_dir = 1;
2141 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2142 | CFN_DROP_TRAILING_DOT_DIR);
2147 name_type = DOTDIR_NAME;
2148 } else if (fn[0] == '.')
2149 name_type = DOTDIR_NAME;
2150 } else if (fn[len-1] == '/') {
2152 if (len == 1 && *fn == '.')
2153 name_type = DOTDIR_NAME;
2155 name_type = SLASH_ENDING_NAME;
2157 /* Reject a ".." dir in the active part of the path. */
2158 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2159 if ((p[2] == '/' || p[2] == '\0')
2160 && (p == fn || p[-1] == '/')) {
2162 "found \"..\" dir in relative path: %s\n",
2164 exit_cleanup(RERR_SYNTAX);
2172 name_type = DOTDIR_NAME;
2175 dirlen = dir ? strlen(dir) : 0;
2176 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2177 if (!change_pathname(NULL, dir, -dirlen))
2180 lastdir_len = pathname_len;
2181 } else if (!change_pathname(NULL, lastdir, lastdir_len))
2185 memmove(fbuf, fn, len + 1);
2187 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2188 || (name_type != DOTDIR_NAME && is_daemon_excluded(fbuf, S_ISDIR(st.st_mode)))
2189 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2190 if (errno != ENOENT || missing_args == 0) {
2191 /* This is a transfer error, but inhibit deletion
2192 * only if we might be omitting an existing file. */
2193 if (errno != ENOENT)
2194 io_error |= IOERR_GENERAL;
2195 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2198 } else if (missing_args == 1) {
2199 /* Just ignore the arg. */
2201 } else /* (missing_args == 2) */ {
2202 /* Send the arg as a "missing" entry with
2203 * mode 0, which tells the generator to delete it. */
2204 memset(&st, 0, sizeof st);
2208 /* A dot-dir should not be excluded! */
2209 if (name_type != DOTDIR_NAME && st.st_mode != 0
2210 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2213 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2214 rprintf(FINFO, "skipping directory %s\n", fbuf);
2218 if (inc_recurse && relative_paths && *fbuf) {
2219 if ((p = strchr(fbuf+1, '/')) != NULL) {
2220 if (p - fbuf == 1 && *fbuf == '.') {
2221 if ((fn = strchr(p+1, '/')) != NULL)
2225 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, name_type);
2229 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2230 /* Send the implied directories at the start of the
2231 * source spec, so we get their permissions right. */
2232 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2235 if (one_file_system)
2236 filesystem_dev = st.st_dev;
2238 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2239 struct file_struct *file;
2240 file = send_file_name(f, flist, fbuf, &st,
2241 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2246 if (name_type == DOTDIR_NAME) {
2247 if (send_dir_depth < 0) {
2249 change_local_filter_dir(fbuf, len, send_dir_depth);
2251 send_directory(f, flist, fbuf, len, flags);
2254 send_if_directory(f, flist, file, fbuf, len, flags);
2256 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2259 gettimeofday(&end_tv, NULL);
2260 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2261 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2262 if (stats.flist_buildtime == 0)
2263 stats.flist_buildtime = 1;
2266 /* Indicate end of file list */
2267 if (protocol_version < 31 || io_error == 0 || ignore_errors)
2270 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2271 write_varint(f, io_error);
2274 #ifdef SUPPORT_HARD_LINKS
2275 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2279 if (show_filelist_p())
2280 finish_filelist_progress(flist);
2282 gettimeofday(&end_tv, NULL);
2283 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2284 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2286 /* When converting names, both sides keep an unsorted file-list array
2287 * because the names will differ on the sending and receiving sides
2288 * (both sides will use the unsorted index number for each item). */
2290 /* Sort the list without removing any duplicates. This allows the
2291 * receiving side to ask for whatever name it kept. For incremental
2292 * recursion mode, the sender marks duplicate dirs so that it can
2293 * send them together in a single file-list. */
2294 if (need_unsorted_flist) {
2295 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2296 out_of_memory("send_file_list");
2297 memcpy(flist->sorted, flist->files,
2298 flist->used * sizeof (struct file_struct*));
2300 flist->sorted = flist->files;
2301 flist_sort_and_clean(flist, 0);
2302 file_total += flist->used;
2304 if (numeric_ids <= 0 && !inc_recurse)
2309 /* send the io_error flag */
2310 if (protocol_version < 30)
2311 write_int(f, ignore_errors ? 0 : io_error);
2312 else if (io_error && protocol_version == 30 && !ignore_errors)
2313 send_msg_int(MSG_IO_ERROR, io_error);
2315 if (disable_buffering)
2316 io_end_buffering_out();
2318 stats.flist_size = stats.total_written - start_write;
2319 stats.num_files = flist->used;
2321 if (DEBUG_GTE(FLIST, 3))
2322 output_flist(flist);
2324 if (DEBUG_GTE(FLIST, 2))
2325 rprintf(FINFO, "send_file_list done\n");
2329 add_dirs_to_tree(-1, flist, stats.num_dirs);
2330 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2331 flist->parent_ndx = -1;
2332 flist_done_allocating(flist);
2333 if (send_dir_ndx < 0) {
2334 write_ndx(f, NDX_FLIST_EOF);
2337 else if (file_total == 1) {
2338 /* If we're creating incremental file-lists and there
2339 * was just 1 item in the first file-list, send 1 more
2340 * file-list to check if this is a 1-file xfer. */
2341 send_extra_file_list(f, 1);
2349 struct file_list *recv_file_list(int f)
2351 struct file_list *flist;
2356 if (show_filelist_p())
2357 start_filelist_progress("receiving file list");
2358 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2359 rprintf(FCLIENT, "receiving incremental file list\n");
2360 rprintf(FLOG, "receiving file list\n");
2362 parse_name_map(usermap, True);
2364 parse_name_map(groupmap, False);
2367 start_read = stats.total_read;
2369 #ifdef SUPPORT_HARD_LINKS
2370 if (preserve_hard_links && !first_flist)
2374 flist = flist_new(0, "recv_file_list");
2377 if (flist->ndx_start == 1)
2378 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2379 dstart = dir_flist->used;
2385 while ((flags = read_byte(f)) != 0) {
2386 struct file_struct *file;
2388 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2389 flags |= read_byte(f) << 8;
2391 if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
2393 if (protocol_version < 31) {
2394 rprintf(FERROR, "Invalid flist flag: %x\n", flags);
2395 exit_cleanup(RERR_PROTOCOL);
2397 err = read_varint(f);
2403 flist_expand(flist, 1);
2404 file = recv_file_entry(flist, flags, f);
2406 if (S_ISREG(file->mode)) {
2407 /* Already counted */
2408 } else if (S_ISDIR(file->mode)) {
2410 flist_expand(dir_flist, 1);
2411 dir_flist->files[dir_flist->used++] = file;
2414 } else if (S_ISLNK(file->mode))
2415 stats.num_symlinks++;
2416 else if (IS_DEVICE(file->mode))
2417 stats.num_symlinks++;
2419 stats.num_specials++;
2421 flist->files[flist->used++] = file;
2423 maybe_emit_filelist_progress(flist->used);
2425 if (DEBUG_GTE(FLIST, 2)) {
2426 char *name = f_name(file, NULL);
2427 rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
2430 file_total += flist->used;
2432 if (DEBUG_GTE(FLIST, 2))
2433 rprintf(FINFO, "received %d names\n", flist->used);
2435 if (show_filelist_p())
2436 finish_filelist_progress(flist);
2438 if (need_unsorted_flist) {
2439 /* Create an extra array of index pointers that we can sort for
2440 * the generator's use (for wading through the files in sorted
2441 * order and for calling flist_find()). We keep the "files"
2442 * list unsorted for our exchange of index numbers with the
2443 * other side (since their names may not sort the same). */
2444 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2445 out_of_memory("recv_file_list");
2446 memcpy(flist->sorted, flist->files,
2447 flist->used * sizeof (struct file_struct*));
2448 if (inc_recurse && dir_flist->used > dstart) {
2449 static int dir_flist_malloced = 0;
2450 if (dir_flist_malloced < dir_flist->malloced) {
2451 dir_flist->sorted = realloc_array(dir_flist->sorted,
2452 struct file_struct *,
2453 dir_flist->malloced);
2454 dir_flist_malloced = dir_flist->malloced;
2456 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2457 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2458 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2461 flist->sorted = flist->files;
2462 if (inc_recurse && dir_flist->used > dstart) {
2463 dir_flist->sorted = dir_flist->files;
2464 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2469 flist_done_allocating(flist);
2471 recv_id_list(f, flist);
2475 flist_sort_and_clean(flist, relative_paths);
2477 if (protocol_version < 30) {
2478 /* Recv the io_error flag */
2479 int err = read_int(f);
2482 } else if (inc_recurse && flist->ndx_start == 1) {
2483 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2484 flist->parent_ndx = -1;
2487 if (DEBUG_GTE(FLIST, 3))
2488 output_flist(flist);
2490 if (DEBUG_GTE(FLIST, 2))
2491 rprintf(FINFO, "recv_file_list done\n");
2493 stats.flist_size += stats.total_read - start_read;
2494 stats.num_files += flist->used;
2499 /* This is only used once by the receiver if the very first file-list
2500 * has exactly one item in it. */
2501 void recv_additional_file_list(int f)
2503 struct file_list *flist;
2504 int ndx = read_ndx(f);
2505 if (ndx == NDX_FLIST_EOF) {
2507 change_local_filter_dir(NULL, 0, 0);
2509 ndx = NDX_FLIST_OFFSET - ndx;
2510 if (ndx < 0 || ndx >= dir_flist->used) {
2511 ndx = NDX_FLIST_OFFSET - ndx;
2513 "[%s] Invalid dir index: %d (%d - %d)\n",
2514 who_am_i(), ndx, NDX_FLIST_OFFSET,
2515 NDX_FLIST_OFFSET - dir_flist->used + 1);
2516 exit_cleanup(RERR_PROTOCOL);
2518 if (DEBUG_GTE(FLIST, 3)) {
2519 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2522 flist = recv_file_list(f);
2523 flist->parent_ndx = ndx;
2527 /* Search for an identically-named item in the file list. Note that the
2528 * items must agree in their directory-ness, or no match is returned. */
2529 int flist_find(struct file_list *flist, struct file_struct *f)
2531 int low = flist->low, high = flist->high;
2532 int diff, mid, mid_up;
2534 while (low <= high) {
2535 mid = (low + high) / 2;
2536 if (F_IS_ACTIVE(flist->sorted[mid]))
2539 /* Scan for the next non-empty entry using the cached
2540 * distance values. If the value isn't fully up-to-
2541 * date, update it. */
2542 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2543 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2545 mid_up += F_DEPTH(flist->sorted[mid_up]);
2546 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2547 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2549 if (mid_up > high) {
2550 /* If there's nothing left above us, set high to
2551 * a non-empty entry below us and continue. */
2552 high = mid - (int)flist->sorted[mid]->len32;
2553 if (!F_IS_ACTIVE(flist->sorted[high])) {
2555 high -= (int)flist->sorted[high]->len32;
2556 } while (!F_IS_ACTIVE(flist->sorted[high]));
2557 flist->sorted[mid]->len32 = mid - high;
2562 diff = f_name_cmp(flist->sorted[mid_up], f);
2564 if (protocol_version < 29
2565 && S_ISDIR(flist->sorted[mid_up]->mode)
2566 != S_ISDIR(f->mode))
2578 /* Search for an identically-named item in the file list. Differs from
2579 * flist_find in that an item that agrees with "f" in directory-ness is
2580 * preferred but one that does not is still found. */
2581 int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
2586 /* First look for an item that agrees in directory-ness. */
2587 ndx = flist_find(flist, f);
2591 /* Temporarily flip f->mode to look for an item of opposite
2592 * directory-ness. */
2593 save_mode = f->mode;
2594 f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
2595 ndx = flist_find(flist, f);
2596 f->mode = save_mode;
2601 * Free up any resources a file_struct has allocated
2602 * and clear the file.
2604 void clear_file(struct file_struct *file)
2606 /* The +1 zeros out the first char of the basename. */
2607 memset(file, 0, FILE_STRUCT_LEN + 1);
2608 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2609 * entry. Likewise for len32 in the opposite direction. We assume
2610 * that we're alone for now since flist_find() will adjust the counts
2611 * it runs into that aren't up-to-date. */
2612 file->len32 = F_DEPTH(file) = 1;
2615 /* Allocate a new file list. */
2616 struct file_list *flist_new(int flags, char *msg)
2618 struct file_list *flist;
2620 if (!(flist = new0(struct file_list)))
2623 if (flags & FLIST_TEMP) {
2624 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2629 /* This is a doubly linked list with prev looping back to
2630 * the end of the list, but the last next pointer is NULL. */
2632 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2635 if (!flist->file_pool)
2638 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2640 first_flist = cur_flist = flist->prev = flist;
2642 struct file_list *prev = first_flist->prev;
2644 flist->file_pool = first_flist->file_pool;
2646 flist->ndx_start = prev->ndx_start + prev->used + 1;
2647 flist->flist_num = prev->flist_num + 1;
2650 prev->next = first_flist->prev = flist;
2652 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2659 /* Free up all elements in a flist. */
2660 void flist_free(struct file_list *flist)
2663 /* Was FLIST_TEMP dir-list. */
2664 } else if (flist == flist->prev) {
2665 first_flist = cur_flist = NULL;
2669 if (flist == cur_flist)
2670 cur_flist = flist->next;
2671 if (flist == first_flist)
2672 first_flist = first_flist->next;
2674 flist->prev->next = flist->next;
2676 flist->next = first_flist;
2678 flist->next->prev = flist->prev;
2679 file_total -= flist->used;
2683 if (!flist->prev || !flist_cnt)
2684 pool_destroy(flist->file_pool);
2686 pool_free_old(flist->file_pool, flist->pool_boundary);
2688 if (flist->sorted && flist->sorted != flist->files)
2689 free(flist->sorted);
2694 /* This routine ensures we don't have any duplicate names in our file list.
2695 * duplicate names can cause corruption because of the pipelining. */
2696 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2698 char fbuf[MAXPATHLEN];
2703 if (flist->used == 0) {
2709 fsort(flist->sorted, flist->used);
2711 if (!am_sender || inc_recurse) {
2712 for (i = prev_i = 0; i < flist->used; i++) {
2713 if (F_IS_ACTIVE(flist->sorted[i])) {
2718 flist->low = prev_i;
2720 i = prev_i = flist->used - 1;
2724 while (++i < flist->used) {
2726 struct file_struct *file = flist->sorted[i];
2728 if (!F_IS_ACTIVE(file))
2730 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2732 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2733 int save_mode = file->mode;
2734 /* Make sure that this directory doesn't duplicate a
2735 * non-directory earlier in the list. */
2736 flist->high = prev_i;
2737 file->mode = S_IFREG;
2738 j = flist_find(flist, file);
2739 file->mode = save_mode;
2744 /* If one is a dir and the other is not, we want to
2745 * keep the dir because it might have contents in the
2746 * list. Otherwise keep the first one. */
2747 if (S_ISDIR(file->mode)) {
2748 struct file_struct *fp = flist->sorted[j];
2749 if (!S_ISDIR(fp->mode))
2753 file->flags |= FLAG_DUPLICATE;
2754 else { /* Make sure we merge our vital flags. */
2755 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2756 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2764 if (DEBUG_GTE(DUP, 1)) {
2766 "removing duplicate name %s from file list (%d)\n",
2767 f_name(file, fbuf), drop + flist->ndx_start);
2769 clear_file(flist->sorted[drop]);
2773 if (flist->low == drop) {
2775 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2784 flist->high = prev_i;
2787 /* We need to strip off the leading slashes for relative
2788 * paths, but this must be done _after_ the sorting phase. */
2789 for (i = flist->low; i <= flist->high; i++) {
2790 struct file_struct *file = flist->sorted[i];
2794 while (*file->dirname == '/')
2796 if (!*file->dirname)
2797 file->dirname = NULL;
2801 if (prune_empty_dirs && !am_sender) {
2802 int j, prev_depth = 0;
2804 prev_i = 0; /* It's OK that this isn't really true. */
2806 for (i = flist->low; i <= flist->high; i++) {
2807 struct file_struct *fp, *file = flist->sorted[i];
2809 /* This temporarily abuses the F_DEPTH() value for a
2810 * directory that is in a chain that might get pruned.
2811 * We restore the old value if it gets a reprieve. */
2812 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2813 /* Dump empty dirs when coming back down. */
2814 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2815 fp = flist->sorted[prev_i];
2816 if (F_DEPTH(fp) >= 0)
2818 prev_i = -F_DEPTH(fp)-1;
2821 prev_depth = F_DEPTH(file);
2822 if (is_excluded(f_name(file, fbuf), 1,
2824 /* Keep dirs through this dir. */
2825 for (j = prev_depth-1; ; j--) {
2826 fp = flist->sorted[prev_i];
2827 if (F_DEPTH(fp) >= 0)
2829 prev_i = -F_DEPTH(fp)-1;
2833 F_DEPTH(file) = -prev_i-1;
2836 /* Keep dirs through this non-dir. */
2837 for (j = prev_depth; ; j--) {
2838 fp = flist->sorted[prev_i];
2839 if (F_DEPTH(fp) >= 0)
2841 prev_i = -F_DEPTH(fp)-1;
2846 /* Dump all remaining empty dirs. */
2848 struct file_struct *fp = flist->sorted[prev_i];
2849 if (F_DEPTH(fp) >= 0)
2851 prev_i = -F_DEPTH(fp)-1;
2855 for (i = flist->low; i <= flist->high; i++) {
2856 if (F_IS_ACTIVE(flist->sorted[i]))
2860 for (i = flist->high; i >= flist->low; i--) {
2861 if (F_IS_ACTIVE(flist->sorted[i]))
2868 static void output_flist(struct file_list *flist)
2870 char uidbuf[16], gidbuf[16], depthbuf[16];
2871 struct file_struct *file;
2872 const char *root, *dir, *slash, *name, *trail;
2873 const char *who = who_am_i();
2876 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
2877 who, flist->ndx_start, flist->used, flist->low, flist->high);
2878 for (i = 0; i < flist->used; i++) {
2879 file = flist->files[i];
2880 if ((am_root || am_sender) && uid_ndx) {
2881 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
2886 static char parens[] = "(\0)\0\0\0";
2887 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
2888 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
2889 pp, F_GROUP(file), pp + 2);
2893 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
2894 if (F_IS_ACTIVE(file)) {
2895 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
2896 if ((dir = file->dirname) == NULL)
2900 name = file->basename;
2901 trail = S_ISDIR(file->mode) ? "/" : "";
2903 root = dir = slash = name = trail = "";
2905 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
2906 who, i + flist->ndx_start,
2907 root, dir, slash, name, trail,
2908 (int)file->mode, comma_num(F_LENGTH(file)),
2909 uidbuf, gidbuf, file->flags);
2913 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
2914 enum fnc_type { t_PATH, t_ITEM };
2916 static int found_prefix;
2918 /* Compare the names of two file_struct entities, similar to how strcmp()
2919 * would do if it were operating on the joined strings.
2921 * Some differences beginning with protocol_version 29: (1) directory names
2922 * are compared with an assumed trailing slash so that they compare in a
2923 * way that would cause them to sort immediately prior to any content they
2924 * may have; (2) a directory of any name compares after a non-directory of
2925 * any name at the same depth; (3) a directory with name "." compares prior
2926 * to anything else. These changes mean that a directory and a non-dir
2927 * with the same name will not compare as equal (protocol_version >= 29).
2929 * The dirname component can be an empty string, but the basename component
2930 * cannot (and never is in the current codebase). The basename component
2931 * may be NULL (for a removed item), in which case it is considered to be
2932 * after any existing item. */
2933 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
2936 const uchar *c1, *c2;
2937 enum fnc_state state1, state2;
2938 enum fnc_type type1, type2;
2939 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
2941 if (!f1 || !F_IS_ACTIVE(f1)) {
2942 if (!f2 || !F_IS_ACTIVE(f2))
2946 if (!f2 || !F_IS_ACTIVE(f2))
2949 c1 = (uchar*)f1->dirname;
2950 c2 = (uchar*)f2->dirname;
2954 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2955 c1 = (const uchar*)f1->basename;
2956 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2958 state1 = s_TRAILING;
2967 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
2968 c2 = (const uchar*)f2->basename;
2969 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
2971 state2 = s_TRAILING;
2981 return type1 == t_PATH ? 1 : -1;
2991 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
2992 c1 = (const uchar*)f1->basename;
2993 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
2995 state1 = s_TRAILING;
3001 state1 = s_TRAILING;
3002 if (type1 == t_PATH) {
3011 if (*c2 && type1 != type2)
3012 return type1 == t_PATH ? 1 : -1;
3021 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3022 c2 = (const uchar*)f2->basename;
3023 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3025 state2 = s_TRAILING;
3031 state2 = s_TRAILING;
3032 if (type2 == t_PATH) {
3045 return type1 == t_PATH ? 1 : -1;
3047 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
3052 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
3053 * not match if f2's basename is not an exact match of a path element in f1.
3054 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
3055 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
3059 return found_prefix;
3062 char *f_name_buf(void)
3064 static char names[5][MAXPATHLEN];
3065 static unsigned int n;
3067 n = (n + 1) % (sizeof names / sizeof names[0]);
3072 /* Return a copy of the full filename of a flist entry, using the indicated
3073 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
3074 * done because we checked the size when creating the file_struct entry.
3076 char *f_name(const struct file_struct *f, char *fbuf)
3078 if (!f || !F_IS_ACTIVE(f))
3082 fbuf = f_name_buf();
3085 int len = strlen(f->dirname);
3086 memcpy(fbuf, f->dirname, len);
3088 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
3090 strlcpy(fbuf, f->basename, MAXPATHLEN);
3095 /* Do a non-recursive scan of the named directory, possibly ignoring all
3096 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
3097 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
3098 * buffer (the functions we call will append names onto the end, but the old
3099 * dir value will be restored on exit). */
3100 struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
3102 struct file_list *dirlist;
3103 char dirbuf[MAXPATHLEN];
3104 int save_recurse = recurse;
3105 int save_xfer_dirs = xfer_dirs;
3106 int save_prune_empty_dirs = prune_empty_dirs;
3109 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3110 if (dlen >= MAXPATHLEN)
3115 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3119 send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, FLAG_CONTENT_DIR);
3120 xfer_dirs = save_xfer_dirs;
3121 recurse = save_recurse;
3122 if (INFO_GTE(PROGRESS, 1))
3123 flist_count_offset += dirlist->used;
3125 prune_empty_dirs = 0;
3126 dirlist->sorted = dirlist->files;
3127 flist_sort_and_clean(dirlist, 0);
3128 prune_empty_dirs = save_prune_empty_dirs;
3130 if (DEBUG_GTE(FLIST, 3))
3131 output_flist(dirlist);