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) 2002-2020 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;
36 extern int checksum_type;
38 extern int ignore_errors;
39 extern int numeric_ids;
44 extern int filesfrom_fd;
45 extern int one_file_system;
46 extern int copy_dirlinks;
47 extern int preserve_uid;
48 extern int preserve_gid;
49 extern int preserve_acls;
50 extern int preserve_xattrs;
51 extern int preserve_links;
52 extern int preserve_hard_links;
53 extern int preserve_devices;
54 extern int preserve_specials;
55 extern int delete_during;
56 extern int missing_args;
58 extern int relative_paths;
59 extern int implied_dirs;
60 extern int ignore_perishable;
61 extern int non_perishable_cnt;
62 extern int prune_empty_dirs;
63 extern int copy_links;
64 extern int copy_unsafe_links;
65 extern int protocol_version;
66 extern int sanitize_paths;
67 extern int munge_symlinks;
68 extern int use_safe_inc_flist;
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;
75 extern struct stats stats;
76 extern char *filesfrom_host;
77 extern char *usermap, *groupmap;
79 extern char curr_dir[MAXPATHLEN];
81 extern struct chmod_mode_struct *chmod_modes;
83 extern filter_rule_list filter_list;
84 extern filter_rule_list daemon_filter_list;
87 extern int filesfrom_convert;
88 extern iconv_t ic_send, ic_recv;
91 #define PTR_SIZE (sizeof (struct file_struct *))
95 dev_t filesystem_dev; /* used to implement -x */
97 struct file_list *cur_flist, *first_flist, *dir_flist;
98 int send_dir_ndx = -1, send_dir_depth = -1;
99 int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
100 int file_total = 0; /* total of all active items over all file-lists */
101 int file_old_total = 0; /* total of active items that will soon be gone */
102 int flist_eof = 0; /* all the file-lists are now known */
104 #define NORMAL_NAME 0
105 #define SLASH_ENDING_NAME 1
106 #define DOTDIR_NAME 2
107 #define MISSING_NAME 3
109 /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
110 * internally, even if this platform does not allow files to have 64-bit inums.
111 * The only exception is if we're on a platform with no 64-bit type at all.
113 * Because we use read_longint() to get these off the wire, if you transfer
114 * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
115 * machine with no 64-bit types then you will get an overflow error.
117 * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
118 * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
119 * be truncated. But it's a kind of silly thing to do anyhow. */
121 /* The tmp_* vars are used as a cache area by make_file() to store data
122 * that the sender doesn't need to remember in its file list. The data
123 * will survive just long enough to be used by send_file_entry(). */
124 static dev_t tmp_rdev;
125 #ifdef SUPPORT_HARD_LINKS
126 static int64 tmp_dev = -1, tmp_ino;
128 static char tmp_sum[MAX_DIGEST_LEN];
130 static char empty_sum[MAX_DIGEST_LEN];
131 static int flist_count_offset; /* for --delete --progress */
132 static int show_filelist_progress;
134 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
135 static void output_flist(struct file_list *flist);
137 void init_flist(void)
139 if (DEBUG_GTE(FLIST, 4)) {
140 rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
141 (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
143 parse_checksum_choice(); /* Sets checksum_type && xfersum_type */
144 flist_csum_len = csum_len_for_type(checksum_type, 1);
146 show_filelist_progress = INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
149 static void start_filelist_progress(char *kind)
153 rprintf(FCLIENT, "%s ... ", kind);
154 output_needs_newline = 1;
158 static void emit_filelist_progress(int count)
162 if (output_needs_newline == 2) /* avoid a newline in the middle of this filelist-progress output */
163 output_needs_newline = 0;
164 rprintf(FCLIENT, " %d files...\r", count);
165 output_needs_newline = 2;
168 static void maybe_emit_filelist_progress(int count)
170 if (INFO_GTE(FLIST, 2) && show_filelist_progress && (count % 100) == 0)
171 emit_filelist_progress(count);
174 static void finish_filelist_progress(const struct file_list *flist)
176 output_needs_newline = 0;
177 if (INFO_GTE(FLIST, 2)) {
178 /* This overwrites the progress line */
179 rprintf(FINFO, "%d file%sto consider\n",
180 flist->used, flist->used == 1 ? " " : "s ");
182 rprintf(FINFO, "done\n");
186 void show_flist_stats(void)
191 /* Stat either a symlink or its referent, depending on the settings of
192 * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
194 * If path is the name of a symlink, then the linkbuf buffer (which must hold
195 * MAXPATHLEN chars) will be set to the symlink's target string.
197 * The stat structure pointed to by stp will contain information about the
198 * link or the referent as appropriate, if they exist. */
199 static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
202 if (link_stat(path, stp, copy_dirlinks) < 0)
204 if (S_ISLNK(stp->st_mode)) {
205 int llen = do_readlink(path, linkbuf, MAXPATHLEN - 1);
208 linkbuf[llen] = '\0';
209 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
210 if (INFO_GTE(SYMSAFE, 1)) {
211 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
214 return x_stat(path, stp, NULL);
216 if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
217 && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
218 memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
219 llen - SYMLINK_PREFIX_LEN + 1);
224 return x_stat(path, stp, NULL);
228 int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
232 return x_stat(path, stp, NULL);
233 if (x_lstat(path, stp, NULL) < 0)
235 if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
237 if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
242 return x_stat(path, stp, NULL);
246 static inline int path_is_daemon_excluded(char *path, int ignore_filename)
248 if (daemon_filter_list.head) {
251 while ((slash = strchr(slash+1, '/')) != NULL) {
254 ret = check_filter(&daemon_filter_list, FLOG, path, 1);
263 && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
272 static inline int is_excluded(const char *fname, int is_dir, int filter_level)
274 return name_is_excluded(fname, is_dir ? NAME_IS_DIR : NAME_IS_FILE, filter_level);
277 static void send_directory(int f, struct file_list *flist,
278 char *fbuf, int len, int flags);
280 static const char *pathname, *orig_dir;
281 static int pathname_len;
283 /* Make sure flist can hold at least flist->used + extra entries. */
284 static void flist_expand(struct file_list *flist, int extra)
286 struct file_struct **new_ptr;
288 if (flist->used + extra <= flist->malloced)
291 if (flist->malloced < FLIST_START)
292 flist->malloced = FLIST_START;
293 else if (flist->malloced >= FLIST_LINEAR)
294 flist->malloced += FLIST_LINEAR;
296 flist->malloced *= 2;
298 /* In case count jumped or we are starting the list
299 * with a known size just set it. */
300 if (flist->malloced < flist->used + extra)
301 flist->malloced = flist->used + extra;
303 new_ptr = realloc_array(flist->files, struct file_struct *,
306 if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
307 rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
309 big_num(sizeof flist->files[0] * flist->malloced),
310 (new_ptr == flist->files) ? " not" : "");
313 flist->files = new_ptr;
316 out_of_memory("flist_expand");
319 static void flist_done_allocating(struct file_list *flist)
321 void *ptr = pool_boundary(flist->file_pool, 8*1024);
322 if (flist->pool_boundary == ptr)
323 flist->pool_boundary = NULL; /* list didn't use any pool memory */
325 flist->pool_boundary = ptr;
328 /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
329 * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
330 * with dir == NULL taken to be the starting directory, and dirlen < 0
331 * indicating that strdup(dir) should be called and then the -dirlen length
332 * value checked to ensure that it is not daemon-excluded. */
333 int change_pathname(struct file_struct *file, const char *dir, int dirlen)
336 char *cpy = strdup(dir);
338 change_dir(orig_dir, CD_SKIP_CHDIR);
339 if (path_is_daemon_excluded(cpy, 0))
345 if (pathname == F_PATHNAME(file))
347 dir = F_PATHNAME(file);
349 dirlen = strlen(dir);
350 } else if (pathname == dir)
352 if (dir && *dir != '/')
353 change_dir(orig_dir, CD_SKIP_CHDIR);
357 pathname_len = dirlen;
362 if (!change_dir(dir, CD_NORMAL)) {
364 io_error |= IOERR_GENERAL;
365 rsyserr(FERROR_XFER, errno, "change_dir %s failed", full_fname(dir));
367 change_dir(orig_dir, CD_NORMAL);
376 static void send_file_entry(int f, const char *fname, struct file_struct *file,
378 const char *symlink_name, int symlink_len,
380 int ndx, int first_ndx)
382 static time_t modtime;
384 #ifdef SUPPORT_HARD_LINKS
388 static uint32 rdev_major;
391 static const char *user_name, *group_name;
392 static char lastname[MAXPATHLEN];
393 #ifdef SUPPORT_HARD_LINKS
394 int first_hlink_ndx = -1;
399 /* Initialize starting value of xflags and adjust counts. */
400 if (S_ISREG(file->mode))
402 else if (S_ISDIR(file->mode)) {
404 if (protocol_version >= 30) {
405 if (file->flags & FLAG_CONTENT_DIR)
406 xflags = file->flags & FLAG_TOP_DIR;
407 else if (file->flags & FLAG_IMPLIED_DIR)
408 xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
410 xflags = XMIT_NO_CONTENT_DIR;
412 xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
414 if (S_ISLNK(file->mode))
415 stats.num_symlinks++;
416 else if (IS_DEVICE(file->mode))
418 else if (IS_SPECIAL(file->mode))
419 stats.num_specials++;
423 if (file->mode == mode)
424 xflags |= XMIT_SAME_MODE;
428 if (preserve_devices && IS_DEVICE(mode)) {
429 if (protocol_version < 28) {
430 if (tmp_rdev == rdev)
431 xflags |= XMIT_SAME_RDEV_pre28;
436 if ((uint32)major(rdev) == rdev_major)
437 xflags |= XMIT_SAME_RDEV_MAJOR;
439 rdev_major = major(rdev);
440 if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
441 xflags |= XMIT_RDEV_MINOR_8_pre30;
443 } else if (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31) {
444 /* Special files don't need an rdev number, so just make
445 * the historical transmission of the value efficient. */
446 if (protocol_version < 28)
447 xflags |= XMIT_SAME_RDEV_pre28;
449 rdev = MAKEDEV(major(rdev), 0);
450 xflags |= XMIT_SAME_RDEV_MAJOR;
451 if (protocol_version < 30)
452 xflags |= XMIT_RDEV_MINOR_8_pre30;
454 } else if (protocol_version < 28)
455 rdev = MAKEDEV(0, 0);
456 if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
457 xflags |= XMIT_SAME_UID;
461 user_name = add_uid(uid);
462 if (inc_recurse && user_name)
463 xflags |= XMIT_USER_NAME_FOLLOWS;
466 if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
467 xflags |= XMIT_SAME_GID;
471 group_name = add_gid(gid);
472 if (inc_recurse && group_name)
473 xflags |= XMIT_GROUP_NAME_FOLLOWS;
476 if (file->modtime == modtime)
477 xflags |= XMIT_SAME_TIME;
479 modtime = file->modtime;
480 if (NSEC_BUMP(file) && protocol_version >= 31)
481 xflags |= XMIT_MOD_NSEC;
483 #ifdef SUPPORT_HARD_LINKS
485 if (protocol_version >= 30) {
486 struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
487 first_hlink_ndx = (int32)(long)np->data - 1;
488 if (first_hlink_ndx < 0) {
489 np->data = (void*)(long)(first_ndx + ndx + 1);
490 xflags |= XMIT_HLINK_FIRST;
492 if (DEBUG_GTE(HLINK, 1)) {
493 if (first_hlink_ndx >= 0) {
494 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
495 who_am_i(), first_ndx + ndx, first_hlink_ndx,
496 first_hlink_ndx >= first_ndx ? "" : "un");
497 } else if (DEBUG_GTE(HLINK, 3)) {
498 rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
499 who_am_i(), first_ndx + ndx,
500 big_num(tmp_dev), big_num(tmp_ino));
504 if (tmp_dev == dev) {
505 if (protocol_version >= 28)
506 xflags |= XMIT_SAME_DEV_pre30;
510 xflags |= XMIT_HLINKED;
515 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
517 l2 = strlen(fname+l1);
520 xflags |= XMIT_SAME_NAME;
522 xflags |= XMIT_LONG_NAME;
524 /* We must make sure we don't send a zero flag byte or the
525 * other end will terminate the flist transfer. Note that
526 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
527 * it's harmless way to add a bit to the first flag byte. */
528 if (protocol_version >= 28) {
529 if (!xflags && !S_ISDIR(mode))
530 xflags |= XMIT_TOP_DIR;
531 if ((xflags & 0xFF00) || !xflags) {
532 xflags |= XMIT_EXTENDED_FLAGS;
533 write_shortint(f, xflags);
535 write_byte(f, xflags);
537 if (!(xflags & 0xFF))
538 xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
539 write_byte(f, xflags);
541 if (xflags & XMIT_SAME_NAME)
543 if (xflags & XMIT_LONG_NAME)
544 write_varint30(f, l2);
547 write_buf(f, fname + l1, l2);
549 #ifdef SUPPORT_HARD_LINKS
550 if (first_hlink_ndx >= 0) {
551 write_varint(f, first_hlink_ndx);
552 if (first_hlink_ndx >= first_ndx)
557 write_varlong30(f, F_LENGTH(file), 3);
558 if (!(xflags & XMIT_SAME_TIME)) {
559 if (protocol_version >= 30)
560 write_varlong(f, modtime, 4);
562 write_int(f, modtime);
564 if (xflags & XMIT_MOD_NSEC)
565 write_varint(f, F_MOD_NSEC(file));
566 if (!(xflags & XMIT_SAME_MODE))
567 write_int(f, to_wire_mode(mode));
568 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
569 if (protocol_version < 30)
572 write_varint(f, uid);
573 if (xflags & XMIT_USER_NAME_FOLLOWS) {
574 int len = strlen(user_name);
576 write_buf(f, user_name, len);
580 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
581 if (protocol_version < 30)
584 write_varint(f, gid);
585 if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
586 int len = strlen(group_name);
588 write_buf(f, group_name, len);
592 if ((preserve_devices && IS_DEVICE(mode))
593 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
594 if (protocol_version < 28) {
595 if (!(xflags & XMIT_SAME_RDEV_pre28))
596 write_int(f, (int)rdev);
598 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
599 write_varint30(f, major(rdev));
600 if (protocol_version >= 30)
601 write_varint(f, minor(rdev));
602 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
603 write_byte(f, minor(rdev));
605 write_int(f, minor(rdev));
611 write_varint30(f, symlink_len);
612 write_buf(f, symlink_name, symlink_len);
616 #ifdef SUPPORT_HARD_LINKS
617 if (tmp_dev != -1 && protocol_version < 30) {
618 /* Older protocols expect the dev number to be transmitted
619 * 1-incremented so that it is never zero. */
620 if (protocol_version < 26) {
621 /* 32-bit dev_t and ino_t */
622 write_int(f, (int32)(dev+1));
623 write_int(f, (int32)tmp_ino);
625 /* 64-bit dev_t and ino_t */
626 if (!(xflags & XMIT_SAME_DEV_pre30))
627 write_longint(f, dev+1);
628 write_longint(f, tmp_ino);
633 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
638 /* Prior to 28, we sent a useless set of nulls. */
641 write_buf(f, sum, flist_csum_len);
644 #ifdef SUPPORT_HARD_LINKS
647 strlcpy(lastname, fname, MAXPATHLEN);
649 if (S_ISREG(mode) || S_ISLNK(mode))
650 stats.total_size += F_LENGTH(file);
653 static struct file_struct *recv_file_entry(int f, struct file_list *flist, int xflags)
655 static int64 modtime;
657 #ifdef SUPPORT_HARD_LINKS
661 static uint32 rdev_major;
664 static uint16 gid_flags;
665 static char lastname[MAXPATHLEN], *lastdir;
666 static int lastdir_depth, lastdir_len = -1;
667 static unsigned int del_hier_name_len = 0;
668 static int in_del_hier = 0;
669 char thisname[MAXPATHLEN];
670 unsigned int l1 = 0, l2 = 0;
671 int alloc_len, basename_len, linkname_len;
672 int extra_len = file_extra_cnt * EXTRA_LEN;
673 int first_hlink_ndx = -1;
676 const char *basename;
677 struct file_struct *file;
681 if (xflags & XMIT_SAME_NAME)
684 if (xflags & XMIT_LONG_NAME)
685 l2 = read_varint30(f);
689 if (l2 >= MAXPATHLEN - l1) {
691 "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
692 xflags, l1, l2, lastname, who_am_i());
693 overflow_exit("recv_file_entry");
696 strlcpy(thisname, lastname, l1 + 1);
697 read_sbuf(f, &thisname[l1], l2);
698 thisname[l1 + l2] = 0;
700 /* Abuse basename_len for a moment... */
701 basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
704 if (ic_recv != (iconv_t)-1) {
707 INIT_CONST_XBUF(outbuf, thisname);
708 INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
710 if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
711 io_error |= IOERR_GENERAL;
713 "[%s] cannot convert filename: %s (%s)\n",
714 who_am_i(), lastname, strerror(errno));
717 thisname[outbuf.len] = '\0';
722 && (clean_fname(thisname, CFN_REFUSE_DOT_DOT_DIRS) < 0 || (!relative_paths && *thisname == '/'))) {
723 rprintf(FERROR, "ABORTING due to unsafe pathname from sender: %s\n", thisname);
724 exit_cleanup(RERR_PROTOCOL);
728 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
730 if ((basename = strrchr(thisname, '/')) != NULL) {
731 int len = basename++ - thisname;
732 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
733 lastdir = new_array(char, len + 1);
734 memcpy(lastdir, thisname, len);
737 lastdir_depth = count_dir_elements(lastdir);
741 basename_len = strlen(basename) + 1; /* count the '\0' */
743 #ifdef SUPPORT_HARD_LINKS
744 if (protocol_version >= 30
745 && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
746 first_hlink_ndx = read_varint(f);
747 if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
749 "hard-link reference out of range: %d (%d)\n",
750 first_hlink_ndx, flist->ndx_start + flist->used);
751 exit_cleanup(RERR_PROTOCOL);
753 if (DEBUG_GTE(HLINK, 1)) {
754 rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
755 who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
756 first_hlink_ndx >= flist->ndx_start ? "" : "un");
758 if (first_hlink_ndx >= flist->ndx_start) {
759 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
760 file_length = F_LENGTH(first);
761 modtime = first->modtime;
762 modtime_nsec = F_MOD_NSEC_or_0(first);
765 uid = F_OWNER(first);
767 gid = F_GROUP(first);
768 if (preserve_devices && IS_DEVICE(mode)) {
769 uint32 *devp = F_RDEV_P(first);
770 rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
771 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
773 if (preserve_links && S_ISLNK(mode))
774 linkname_len = strlen(F_SYMLINK(first)) + 1;
782 file_length = read_varlong30(f, 3);
783 if (!(xflags & XMIT_SAME_TIME)) {
784 if (protocol_version >= 30) {
785 modtime = read_varlong(f, 4);
786 #if SIZEOF_TIME_T < SIZEOF_INT64
787 if (!am_generator && (int64)(time_t)modtime != modtime) {
789 "Time value of %s truncated on receiver.\n",
794 modtime = read_int(f);
796 if (xflags & XMIT_MOD_NSEC)
797 modtime_nsec = read_varint(f);
800 if (!(xflags & XMIT_SAME_MODE))
801 mode = from_wire_mode(read_int(f));
803 if (chmod_modes && !S_ISLNK(mode) && mode)
804 mode = tweak_mode(mode, chmod_modes);
806 if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
807 if (protocol_version < 30)
808 uid = (uid_t)read_int(f);
810 uid = (uid_t)read_varint(f);
811 if (xflags & XMIT_USER_NAME_FOLLOWS)
812 uid = recv_user_name(f, uid);
813 else if (inc_recurse && am_root && (!numeric_ids || usermap))
814 uid = match_uid(uid);
817 if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
818 if (protocol_version < 30)
819 gid = (gid_t)read_int(f);
821 gid = (gid_t)read_varint(f);
823 if (xflags & XMIT_GROUP_NAME_FOLLOWS)
824 gid = recv_group_name(f, gid, &gid_flags);
825 else if (inc_recurse && (!am_root || !numeric_ids || groupmap))
826 gid = match_gid(gid, &gid_flags);
830 if ((preserve_devices && IS_DEVICE(mode))
831 || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
832 if (protocol_version < 28) {
833 if (!(xflags & XMIT_SAME_RDEV_pre28))
834 rdev = (dev_t)read_int(f);
837 if (!(xflags & XMIT_SAME_RDEV_MAJOR))
838 rdev_major = read_varint30(f);
839 if (protocol_version >= 30)
840 rdev_minor = read_varint(f);
841 else if (xflags & XMIT_RDEV_MINOR_8_pre30)
842 rdev_minor = read_byte(f);
844 rdev_minor = read_int(f);
845 rdev = MAKEDEV(rdev_major, rdev_minor);
848 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
850 } else if (protocol_version < 28)
851 rdev = MAKEDEV(0, 0);
854 if (preserve_links && S_ISLNK(mode)) {
855 linkname_len = read_varint30(f) + 1; /* count the '\0' */
856 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
857 rprintf(FERROR, "overflow: linkname_len=%d\n",
859 overflow_exit("recv_file_entry");
862 /* We don't know how much extra room we need to convert
863 * the as-yet-unread symlink data, so let's hope that a
864 * double-size buffer is plenty. */
865 if (sender_symlink_iconv)
869 linkname_len += SYMLINK_PREFIX_LEN;
875 #ifdef SUPPORT_HARD_LINKS
877 if (preserve_hard_links) {
878 if (protocol_version < 28 && S_ISREG(mode))
879 xflags |= XMIT_HLINKED;
880 if (xflags & XMIT_HLINKED)
881 extra_len += (inc_recurse+1) * EXTRA_LEN;
886 /* Directories need an extra int32 for the default ACL. */
887 if (preserve_acls && S_ISDIR(mode))
888 extra_len += EXTRA_LEN;
891 if (always_checksum && S_ISREG(mode))
892 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
894 #if SIZEOF_INT64 >= 8
895 if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
896 extra_len += EXTRA_LEN;
900 extra_len += EXTRA_LEN;
902 if (file_length < 0) {
903 rprintf(FERROR, "Offset underflow: file-length is negative\n");
904 exit_cleanup(RERR_UNSUPPORTED);
907 if (inc_recurse && S_ISDIR(mode)) {
908 if (one_file_system) {
909 /* Room to save the dir's device for -x */
910 extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
912 pool = dir_flist->file_pool;
914 pool = flist->file_pool;
916 #if EXTRA_ROUNDING > 0
917 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
918 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
921 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
923 bp = pool_alloc(pool, alloc_len, "recv_file_entry");
925 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
927 file = (struct file_struct *)bp;
928 bp += FILE_STRUCT_LEN;
930 memcpy(bp, basename, basename_len);
932 #ifdef SUPPORT_HARD_LINKS
933 if (xflags & XMIT_HLINKED
934 #ifndef CAN_HARDLINK_SYMLINK
937 #ifndef CAN_HARDLINK_SPECIAL
938 && !IS_SPECIAL(mode) && !IS_DEVICE(mode)
941 file->flags |= FLAG_HLINKED;
943 file->modtime = (time_t)modtime;
946 file->flags |= FLAG_MOD_NSEC;
947 F_MOD_NSEC(file) = modtime_nsec;
950 file->len32 = (uint32)file_length;
951 #if SIZEOF_INT64 >= 8
952 if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
953 #if SIZEOF_CAPITAL_OFF_T < 8
954 rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
955 exit_cleanup(RERR_UNSUPPORTED);
957 file->flags |= FLAG_LENGTH64;
958 F_HIGH_LEN(file) = (uint32)(file_length >> 32);
967 file->flags |= gid_flags;
970 F_NDX(file) = flist->used + flist->ndx_start;
972 if (basename != thisname) {
973 file->dirname = lastdir;
974 F_DEPTH(file) = lastdir_depth + 1;
979 if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
981 if (protocol_version >= 30) {
982 if (!(xflags & XMIT_NO_CONTENT_DIR)) {
983 if (xflags & XMIT_TOP_DIR)
984 file->flags |= FLAG_TOP_DIR;
985 file->flags |= FLAG_CONTENT_DIR;
986 } else if (xflags & XMIT_TOP_DIR)
987 file->flags |= FLAG_IMPLIED_DIR;
988 } else if (xflags & XMIT_TOP_DIR) {
989 in_del_hier = recurse;
990 del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
991 if (relative_paths && del_hier_name_len > 2
992 && lastname[del_hier_name_len-1] == '.'
993 && lastname[del_hier_name_len-2] == '/')
994 del_hier_name_len -= 2;
995 file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
996 } else if (in_del_hier) {
997 if (!relative_paths || !del_hier_name_len
998 || (l1 >= del_hier_name_len
999 && lastname[del_hier_name_len] == '/'))
1000 file->flags |= FLAG_CONTENT_DIR;
1006 if (preserve_devices && IS_DEVICE(mode)) {
1007 uint32 *devp = F_RDEV_P(file);
1008 DEV_MAJOR(devp) = major(rdev);
1009 DEV_MINOR(devp) = minor(rdev);
1012 #ifdef SUPPORT_LINKS
1015 if (first_hlink_ndx >= flist->ndx_start) {
1016 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1017 memcpy(bp, F_SYMLINK(first), linkname_len);
1019 if (munge_symlinks) {
1020 strlcpy(bp, SYMLINK_PREFIX, linkname_len);
1021 bp += SYMLINK_PREFIX_LEN;
1022 linkname_len -= SYMLINK_PREFIX_LEN;
1025 if (sender_symlink_iconv) {
1028 alloc_len = linkname_len;
1031 /* Read the symlink data into the end of our double-sized
1032 * buffer and then convert it into the right spot. */
1033 INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
1034 linkname_len - 1, (size_t)-1);
1035 read_sbuf(f, inbuf.buf, inbuf.len);
1036 INIT_XBUF(outbuf, bp, 0, alloc_len);
1038 if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
1039 io_error |= IOERR_GENERAL;
1040 rprintf(FERROR_XFER,
1041 "[%s] cannot convert symlink data for: %s (%s)\n",
1042 who_am_i(), full_fname(thisname), strerror(errno));
1043 bp = (char*)file->basename;
1047 bp[outbuf.len] = '\0';
1050 read_sbuf(f, bp, linkname_len - 1);
1051 if (sanitize_paths && !munge_symlinks && *bp)
1052 sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1057 #ifdef SUPPORT_HARD_LINKS
1058 if (preserve_hard_links && xflags & XMIT_HLINKED) {
1059 if (protocol_version >= 30) {
1060 if (xflags & XMIT_HLINK_FIRST) {
1061 F_HL_GNUM(file) = flist->ndx_start + flist->used;
1063 F_HL_GNUM(file) = first_hlink_ndx;
1065 static int32 cnt = 0;
1066 struct ht_int64_node *np;
1069 if (protocol_version < 26) {
1073 if (!(xflags & XMIT_SAME_DEV_pre30))
1074 dev = read_longint(f);
1075 ino = read_longint(f);
1077 np = idev_find(dev, ino);
1078 ndx = (int32)(long)np->data - 1;
1081 np->data = (void*)(long)cnt;
1083 F_HL_GNUM(file) = ndx;
1088 if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1092 /* Prior to 28, we get a useless set of nulls. */
1095 if (first_hlink_ndx >= flist->ndx_start) {
1096 struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1097 memcpy(bp, F_SUM(first), flist_csum_len);
1099 read_buf(f, bp, flist_csum_len);
1103 if (preserve_acls && !S_ISLNK(mode))
1104 receive_acl(f, file);
1106 #ifdef SUPPORT_XATTRS
1107 if (preserve_xattrs)
1108 receive_xattr(f, file);
1111 if (S_ISREG(mode) || S_ISLNK(mode))
1112 stats.total_size += file_length;
1117 /* Create a file_struct for a named file by reading its stat() information
1118 * and performing extensive checks against global options.
1120 * Returns a pointer to the new file struct, or NULL if there was an error
1121 * or this file should be excluded.
1123 * Note: Any error (here or in send_file_name) that results in the omission of
1124 * an existent source file from the file list should set
1125 * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1126 * destination if --delete is on. */
1127 struct file_struct *make_file(const char *fname, struct file_list *flist,
1128 STRUCT_STAT *stp, int flags, int filter_level)
1130 static char *lastdir;
1131 static int lastdir_len = -1;
1132 struct file_struct *file;
1133 char thisname[MAXPATHLEN];
1134 char linkname[MAXPATHLEN];
1135 int alloc_len, basename_len, linkname_len;
1136 int extra_len = file_extra_cnt * EXTRA_LEN;
1137 const char *basename;
1142 if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1143 io_error |= IOERR_GENERAL;
1144 rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1147 clean_fname(thisname, 0);
1149 sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1151 if (stp && (S_ISDIR(stp->st_mode) || IS_MISSING_FILE(*stp))) {
1152 /* This is needed to handle a "symlink/." with a --relative
1153 * dir, or a request to delete a specific file. */
1155 *linkname = '\0'; /* make IBM code checker happy */
1156 } else if (readlink_stat(thisname, &st, linkname) != 0) {
1157 int save_errno = errno;
1158 /* See if file is excluded before reporting an error. */
1159 if (filter_level != NO_FILTERS
1160 && (is_excluded(thisname, 0, filter_level)
1161 || is_excluded(thisname, 1, filter_level))) {
1162 if (ignore_perishable && save_errno != ENOENT)
1163 non_perishable_cnt++;
1166 if (save_errno == ENOENT) {
1167 #ifdef SUPPORT_LINKS
1168 /* When our options tell us to follow a symlink that
1169 * points nowhere, tell the user about the symlink
1170 * instead of giving a "vanished" message. We only
1171 * dereference a symlink if one of the --copy*links
1172 * options was specified, so there's no need for the
1173 * extra lstat() if one of these options isn't on. */
1174 if ((copy_links || copy_unsafe_links || copy_dirlinks)
1175 && x_lstat(thisname, &st, NULL) == 0
1176 && S_ISLNK(st.st_mode)) {
1177 io_error |= IOERR_GENERAL;
1178 rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1179 full_fname(thisname));
1183 enum logcode c = am_daemon && protocol_version < 28
1184 ? FERROR : FWARNING;
1185 io_error |= IOERR_VANISHED;
1186 rprintf(c, "file has vanished: %s\n",
1187 full_fname(thisname));
1190 io_error |= IOERR_GENERAL;
1191 rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
1192 full_fname(thisname));
1195 } else if (IS_MISSING_FILE(st)) {
1196 io_error |= IOERR_GENERAL;
1197 rprintf(FINFO, "skipping file with bogus (zero) st_mode: %s\n",
1198 full_fname(thisname));
1202 if (filter_level == NO_FILTERS)
1205 if (S_ISDIR(st.st_mode)) {
1207 rprintf(FINFO, "skipping directory %s\n", thisname);
1210 /* -x only affects dirs because we need to avoid recursing
1211 * into a mount-point directory, not to avoid copying a
1212 * symlinked file if -L (or similar) was specified. */
1213 if (one_file_system && st.st_dev != filesystem_dev
1214 && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1215 if (one_file_system > 1) {
1216 if (INFO_GTE(MOUNT, 1)) {
1218 "[%s] skipping mount-point dir %s\n",
1219 who_am_i(), thisname);
1223 flags |= FLAG_MOUNT_DIR;
1224 flags &= ~FLAG_CONTENT_DIR;
1227 flags &= ~FLAG_CONTENT_DIR;
1229 if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1230 if (ignore_perishable)
1231 non_perishable_cnt++;
1235 if (lp_ignore_nonreadable(module_id)) {
1236 #ifdef SUPPORT_LINKS
1237 if (!S_ISLNK(st.st_mode))
1239 if (access(thisname, R_OK) != 0)
1245 /* Only divert a directory in the main transfer. */
1247 if (flist->prev && S_ISDIR(st.st_mode)
1248 && flags & FLAG_DIVERT_DIRS) {
1249 /* Room for parent/sibling/next-child info. */
1250 extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1252 extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1253 pool = dir_flist->file_pool;
1255 pool = flist->file_pool;
1258 /* Directories need an extra int32 for the default ACL. */
1259 if (preserve_acls && S_ISDIR(st.st_mode))
1260 extra_len += EXTRA_LEN;
1265 if (DEBUG_GTE(FLIST, 2)) {
1266 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1267 who_am_i(), thisname, filter_level);
1270 if ((basename = strrchr(thisname, '/')) != NULL) {
1271 int len = basename++ - thisname;
1272 if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1273 lastdir = new_array(char, len + 1);
1274 memcpy(lastdir, thisname, len);
1275 lastdir[len] = '\0';
1279 basename = thisname;
1280 basename_len = strlen(basename) + 1; /* count the '\0' */
1282 #ifdef SUPPORT_LINKS
1283 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1288 #ifdef ST_MTIME_NSEC
1289 if (st.ST_MTIME_NSEC && protocol_version >= 31)
1290 extra_len += EXTRA_LEN;
1292 #if SIZEOF_CAPITAL_OFF_T >= 8
1293 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1294 extra_len += EXTRA_LEN;
1297 if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
1298 file_checksum(thisname, &st, tmp_sum);
1299 if (sender_keeps_checksum)
1300 extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1303 #if EXTRA_ROUNDING > 0
1304 if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1305 extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1308 alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1311 bp = pool_alloc(pool, alloc_len, "make_file");
1313 if (!(bp = new_array(char, alloc_len)))
1314 out_of_memory("make_file");
1317 memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1319 file = (struct file_struct *)bp;
1320 bp += FILE_STRUCT_LEN;
1322 memcpy(bp, basename, basename_len);
1324 #ifdef SUPPORT_HARD_LINKS
1325 if (preserve_hard_links && flist && flist->prev) {
1326 if (protocol_version >= 28
1327 ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1328 : S_ISREG(st.st_mode)) {
1329 tmp_dev = (int64)st.st_dev;
1330 tmp_ino = (int64)st.st_ino;
1336 #ifdef HAVE_STRUCT_STAT_ST_RDEV
1337 if (IS_DEVICE(st.st_mode)) {
1338 tmp_rdev = st.st_rdev;
1340 } else if (IS_SPECIAL(st.st_mode))
1344 file->flags = flags;
1345 file->modtime = st.st_mtime;
1346 #ifdef ST_MTIME_NSEC
1347 if (st.ST_MTIME_NSEC && protocol_version >= 31) {
1348 file->flags |= FLAG_MOD_NSEC;
1349 F_MOD_NSEC(file) = st.ST_MTIME_NSEC;
1352 file->len32 = (uint32)st.st_size;
1353 #if SIZEOF_CAPITAL_OFF_T >= 8
1354 if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
1355 file->flags |= FLAG_LENGTH64;
1356 F_HIGH_LEN(file) = (uint32)(st.st_size >> 32);
1359 file->mode = st.st_mode;
1361 F_OWNER(file) = st.st_uid;
1363 F_GROUP(file) = st.st_gid;
1364 if (am_generator && st.st_uid == our_uid)
1365 file->flags |= FLAG_OWNED_BY_US;
1367 if (basename != thisname)
1368 file->dirname = lastdir;
1370 #ifdef SUPPORT_LINKS
1372 memcpy(bp + basename_len, linkname, linkname_len);
1376 F_PATHNAME(file) = pathname;
1378 F_DEPTH(file) = extra_len / EXTRA_LEN;
1380 if (basename_len == 0+1) {
1386 if (sender_keeps_checksum && S_ISREG(st.st_mode))
1387 memcpy(F_SUM(file), tmp_sum, flist_csum_len);
1390 F_NDX(file) = stats.num_dirs;
1395 /* Only called for temporary file_struct entries created by make_file(). */
1396 void unmake_file(struct file_struct *file)
1398 free(REQ_EXTRA(file, F_DEPTH(file)));
1401 static struct file_struct *send_file_name(int f, struct file_list *flist,
1402 const char *fname, STRUCT_STAT *stp,
1403 int flags, int filter_level)
1405 struct file_struct *file;
1407 file = make_file(fname, flist, stp, flags, filter_level);
1411 if (chmod_modes && !S_ISLNK(file->mode) && file->mode)
1412 file->mode = tweak_mode(file->mode, chmod_modes);
1415 char fbuf[MAXPATHLEN];
1416 #ifdef SUPPORT_LINKS
1417 const char *symlink_name;
1420 char symlink_buf[MAXPATHLEN];
1423 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
1428 #ifdef SUPPORT_LINKS
1429 if (preserve_links && S_ISLNK(file->mode)) {
1430 symlink_name = F_SYMLINK(file);
1431 symlink_len = strlen(symlink_name);
1432 if (symlink_len == 0) {
1433 io_error |= IOERR_GENERAL;
1435 rprintf(FERROR_XFER,
1436 "skipping symlink with 0-length value: %s\n",
1441 symlink_name = NULL;
1447 if (ic_send != (iconv_t)-1) {
1450 INIT_CONST_XBUF(outbuf, fbuf);
1452 if (file->dirname) {
1453 INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
1454 outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
1455 if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0)
1458 fbuf[outbuf.len++] = '/';
1461 INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
1462 if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
1464 io_error |= IOERR_GENERAL;
1465 rprintf(FERROR_XFER,
1466 "[%s] cannot convert filename: %s (%s)\n",
1467 who_am_i(), f_name(file, fbuf), strerror(errno));
1470 fbuf[outbuf.len] = '\0';
1472 #ifdef SUPPORT_LINKS
1473 if (symlink_len && sender_symlink_iconv) {
1474 INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
1475 INIT_CONST_XBUF(outbuf, symlink_buf);
1476 if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
1477 io_error |= IOERR_GENERAL;
1479 rprintf(FERROR_XFER,
1480 "[%s] cannot convert symlink data for: %s (%s)\n",
1481 who_am_i(), full_fname(fbuf), strerror(errno));
1484 symlink_buf[outbuf.len] = '\0';
1486 symlink_name = symlink_buf;
1487 symlink_len = outbuf.len;
1495 if (preserve_acls && !S_ISLNK(file->mode)) {
1496 sx.st.st_mode = file->mode;
1497 if (get_acl(fname, &sx) < 0) {
1498 io_error |= IOERR_GENERAL;
1503 #ifdef SUPPORT_XATTRS
1504 if (preserve_xattrs) {
1505 sx.st.st_mode = file->mode;
1506 if (get_xattr(fname, &sx) < 0) {
1507 io_error |= IOERR_GENERAL;
1513 send_file_entry(f, fbuf, file,
1514 #ifdef SUPPORT_LINKS
1515 symlink_name, symlink_len,
1517 flist->used, flist->ndx_start);
1520 if (preserve_acls && !S_ISLNK(file->mode)) {
1525 #ifdef SUPPORT_XATTRS
1526 if (preserve_xattrs) {
1527 F_XATTR(file) = send_xattr(f, &sx);
1533 maybe_emit_filelist_progress(flist->used + flist_count_offset);
1535 flist_expand(flist, 1);
1536 flist->files[flist->used++] = file;
1541 static void send_if_directory(int f, struct file_list *flist,
1542 struct file_struct *file,
1543 char *fbuf, unsigned int ol,
1546 char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
1548 if (S_ISDIR(file->mode)
1549 && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
1551 unsigned int len = strlen(fbuf);
1552 if (len > 1 && fbuf[len-1] == '/')
1554 save_filters = push_local_filters(fbuf, len);
1555 send_directory(f, flist, fbuf, len, flags);
1556 pop_local_filters(save_filters);
1563 static int file_compare(const void *file1, const void *file2)
1565 return f_name_cmp(*(struct file_struct **)file1,
1566 *(struct file_struct **)file2);
1569 /* The guts of a merge-sort algorithm. This was derived from the glibc
1570 * version, but I (Wayne) changed the merge code to do less copying and
1571 * to require only half the amount of temporary memory. */
1572 static void fsort_tmp(struct file_struct **fp, size_t num,
1573 struct file_struct **tmp)
1575 struct file_struct **f1, **f2, **t;
1584 fsort_tmp(f1, n1, tmp);
1586 fsort_tmp(f2, n2, tmp);
1588 while (f_name_cmp(*f1, *f2) <= 0) {
1595 memcpy(t, f1, n1 * PTR_SIZE);
1597 *f1++ = *f2++, n2--;
1599 while (n1 > 0 && n2 > 0) {
1600 if (f_name_cmp(*t, *f2) <= 0)
1603 *f1++ = *f2++, n2--;
1607 memcpy(f1, t, n1 * PTR_SIZE);
1610 /* This file-struct sorting routine makes sure that any identical names in
1611 * the file list stay in the same order as they were in the original list.
1612 * This is particularly vital in inc_recurse mode where we expect a sort
1613 * on the flist to match the exact order of a sort on the dir_flist. */
1614 static void fsort(struct file_struct **fp, size_t num)
1620 qsort(fp, num, PTR_SIZE, file_compare);
1622 struct file_struct **tmp = new_array(struct file_struct *,
1624 fsort_tmp(fp, num, tmp);
1629 /* We take an entire set of sibling dirs from the sorted flist and link them
1630 * into the tree, setting the appropriate parent/child/sibling pointers. */
1631 static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
1636 int32 *parent_dp = parent_ndx < 0 ? NULL
1637 : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
1639 /* The sending side is adding entries to dir_flist in sorted order, so sorted & files are the same. */
1640 flist_expand(dir_flist, dir_cnt);
1641 dir_flist->sorted = dir_flist->files;
1643 for (i = 0; dir_cnt; i++) {
1644 struct file_struct *file = from_flist->sorted[i];
1646 if (!S_ISDIR(file->mode))
1649 dir_flist->files[dir_flist->used++] = file;
1652 if (file->basename[0] == '.' && file->basename[1] == '\0')
1656 DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
1658 DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
1660 send_dir_ndx = dir_flist->used - 1;
1662 dp = F_DIR_NODE_P(file);
1663 DIR_PARENT(dp) = parent_ndx;
1664 DIR_FIRST_CHILD(dp) = -1;
1667 DIR_NEXT_SIBLING(dp) = -1;
1670 static void interpret_stat_error(const char *fname, int is_dir)
1672 if (errno == ENOENT) {
1673 io_error |= IOERR_VANISHED;
1674 rprintf(FWARNING, "%s has vanished: %s\n",
1675 is_dir ? "directory" : "file", full_fname(fname));
1677 io_error |= IOERR_GENERAL;
1678 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
1683 /* This function is normally called by the sender, but the receiving side also
1684 * calls it from get_dirlist() with f set to -1 so that we just construct the
1685 * file list in memory without sending it over the wire. Also, get_dirlist()
1686 * might call this with f set to -2, which also indicates that local filter
1687 * rules should be ignored. */
1688 static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
1695 int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
1696 int start = flist->used;
1697 int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
1699 assert(flist != NULL);
1701 if (!(d = opendir(fbuf))) {
1702 if (errno == ENOENT) {
1703 if (am_sender) /* Can abuse this for vanished error w/ENOENT: */
1704 interpret_stat_error(fbuf, True);
1707 if (errno == ENOTDIR && (flags & FLAG_PERHAPS_DIR))
1709 io_error |= IOERR_GENERAL;
1710 rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
1715 if (len == 1 && *fbuf == '/')
1716 remainder = MAXPATHLEN - 1;
1717 else if (len < MAXPATHLEN-1) {
1720 remainder = MAXPATHLEN - (len + 1);
1724 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1726 char *dname = d_name(di);
1727 if (dname[0] == '.' && (dname[1] == '\0'
1728 || (dname[1] == '.' && dname[2] == '\0')))
1730 name_len = strlcpy(p, dname, remainder);
1731 if (name_len >= remainder) {
1732 char save = fbuf[len];
1734 io_error |= IOERR_GENERAL;
1735 rprintf(FERROR_XFER,
1736 "filename overflows max-path len by %u: %s/%s\n",
1737 name_len - remainder + 1, fbuf, dname);
1741 if (dname[0] == '\0') {
1742 io_error |= IOERR_GENERAL;
1743 rprintf(FERROR_XFER,
1744 "cannot send file with empty name in %s\n",
1749 send_file_name(f, flist, fbuf, NULL, flags, filter_level);
1755 io_error |= IOERR_GENERAL;
1756 rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
1761 if (f >= 0 && recurse && !divert_dirs) {
1762 int i, end = flist->used - 1;
1763 /* send_if_directory() bumps flist->used, so use "end". */
1764 for (i = start; i <= end; i++)
1765 send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
1769 static void send_implied_dirs(int f, struct file_list *flist, char *fname,
1770 char *start, char *limit, int flags, char name_type)
1772 static char lastpath[MAXPATHLEN] = "";
1773 static int lastpath_len = 0;
1774 static struct file_struct *lastpath_struct = NULL;
1775 struct file_struct *file;
1776 item_list *relname_list;
1777 relnamecache **rnpp;
1778 int len, need_new_dir, depth = 0;
1779 filter_rule_list save_filter_list = filter_list;
1781 flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
1782 filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
1785 if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
1786 && lastpath_len == limit - fname
1787 && strncmp(lastpath, fname, lastpath_len) == 0)
1792 char *tp = fname, *lp = lastpath;
1793 /* Skip any initial directories in our path that we
1794 * have in common with lastpath. */
1795 assert(start == fname);
1796 for ( ; ; tp++, lp++) {
1798 if (*lp == '/' || *lp == '\0')
1813 int save_copy_links = copy_links;
1814 int save_xfer_dirs = xfer_dirs;
1817 copy_links = xfer_dirs = 1;
1821 for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
1823 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1825 if (!inc_recurse && file && S_ISDIR(file->mode))
1826 change_local_filter_dir(fname, strlen(fname), depth);
1830 file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
1832 if (file && !S_ISDIR(file->mode))
1834 lastpath_struct = file;
1835 } else if (file && S_ISDIR(file->mode))
1836 change_local_filter_dir(fname, strlen(fname), ++depth);
1838 strlcpy(lastpath, fname, sizeof lastpath);
1839 lastpath_len = limit - fname;
1843 copy_links = save_copy_links;
1844 xfer_dirs = save_xfer_dirs;
1850 if (!lastpath_struct)
1851 goto done; /* dir must have vanished */
1853 len = strlen(limit+1);
1854 memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
1855 if (!relname_list) {
1856 if (!(relname_list = new0(item_list)))
1857 out_of_memory("send_implied_dirs");
1858 memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
1860 rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
1861 if (!(*rnpp = (relnamecache*)new_array(char, sizeof (relnamecache) + len)))
1862 out_of_memory("send_implied_dirs");
1863 (*rnpp)->name_type = name_type;
1864 strlcpy((*rnpp)->fname, limit+1, len + 1);
1867 filter_list = save_filter_list;
1870 static NORETURN void fatal_unsafe_io_error(void)
1872 /* This (sadly) can only happen when pushing data because
1873 * the sender does not know about what kind of delete
1874 * is in effect on the receiving side when pulling. */
1875 rprintf(FERROR_XFER, "FATAL I/O ERROR: dying to avoid a --delete-%s issue with a pre-3.0.7 receiver.\n",
1876 delete_during == 2 ? "delay" : "during");
1877 exit_cleanup(RERR_UNSUPPORTED);
1880 static void send1extra(int f, struct file_struct *file, struct file_list *flist)
1882 char fbuf[MAXPATHLEN];
1883 item_list *relname_list;
1884 int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
1888 dlen = strlen(fbuf);
1890 if (!change_pathname(file, NULL, 0))
1891 exit_cleanup(RERR_FILESELECT);
1893 change_local_filter_dir(fbuf, dlen, send_dir_depth);
1895 if (file->flags & FLAG_CONTENT_DIR) {
1896 if (one_file_system) {
1898 if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
1899 interpret_stat_error(fbuf, True);
1902 filesystem_dev = st.st_dev;
1904 send_directory(f, flist, fbuf, dlen, flags);
1907 if (!relative_paths)
1910 memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
1914 for (j = 0; j < relname_list->count; j++) {
1916 relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
1917 char name_type = rnp->name_type;
1920 len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
1922 if (len >= (int)sizeof fbuf)
1923 continue; /* Impossible... */
1925 slash = strchr(fbuf+dlen+1, '/');
1927 send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
1931 if (name_type != NORMAL_NAME) {
1933 if (name_type == MISSING_NAME)
1934 memset(&st, 0, sizeof st);
1935 else if (link_stat(fbuf, &st, 1) != 0) {
1936 interpret_stat_error(fbuf, True);
1939 send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
1941 send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
1947 void send_extra_file_list(int f, int at_least)
1949 struct file_list *flist;
1952 int save_io_error = io_error;
1958 at_least = file_total - file_old_total + 1;
1960 /* Keep sending data until we have the requested number of
1961 * files in the upcoming file-lists. */
1962 while (file_total - file_old_total < at_least) {
1963 struct file_struct *file = dir_flist->sorted[send_dir_ndx];
1964 int dir_ndx, dstart = stats.num_dirs;
1965 const char *pathname = F_PATHNAME(file);
1968 flist = flist_new(0, "send_extra_file_list");
1969 start_write = stats.total_written;
1972 dir_ndx = F_NDX(file);
1974 dir_ndx = send_dir_ndx;
1975 write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
1976 flist->parent_ndx = send_dir_ndx; /* the sending side must remember the sorted ndx value */
1978 send1extra(f, file, flist);
1979 prev_flags = file->flags;
1980 dp = F_DIR_NODE_P(file);
1982 /* If there are any duplicate directory names that follow, we
1983 * send all the dirs together in one file-list. The dir_flist
1984 * tree links all the child subdirs onto the last dup dir. */
1985 while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
1986 && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
1987 send_dir_ndx = dir_ndx;
1988 file = dir_flist->sorted[dir_ndx];
1989 /* Try to avoid some duplicate scanning of identical dirs. */
1990 if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
1991 file->flags &= ~FLAG_CONTENT_DIR;
1992 send1extra(f, file, flist);
1993 prev_flags = file->flags;
1994 dp = F_DIR_NODE_P(file);
1997 if (io_error == save_io_error || ignore_errors)
1999 else if (use_safe_inc_flist) {
2000 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2001 write_varint(f, io_error);
2004 fatal_unsafe_io_error();
2008 if (need_unsorted_flist) {
2009 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2010 out_of_memory("send_extra_file_list");
2011 memcpy(flist->sorted, flist->files,
2012 flist->used * sizeof (struct file_struct*));
2014 flist->sorted = flist->files;
2016 flist_sort_and_clean(flist, 0);
2018 add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
2019 flist_done_allocating(flist);
2021 file_total += flist->used;
2022 stats.flist_size += stats.total_written - start_write;
2023 stats.num_files += flist->used;
2024 if (DEBUG_GTE(FLIST, 3))
2025 output_flist(flist);
2027 if (DIR_FIRST_CHILD(dp) >= 0) {
2028 send_dir_ndx = DIR_FIRST_CHILD(dp);
2031 while (DIR_NEXT_SIBLING(dp) < 0) {
2032 if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
2033 write_ndx(f, NDX_FLIST_EOF);
2035 if (DEBUG_GTE(FLIST, 3))
2036 rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2037 change_local_filter_dir(NULL, 0, 0);
2041 file = dir_flist->sorted[send_dir_ndx];
2042 dp = F_DIR_NODE_P(file);
2044 send_dir_ndx = DIR_NEXT_SIBLING(dp);
2049 if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
2050 send_msg_int(MSG_IO_ERROR, io_error);
2053 struct file_list *send_file_list(int f, int argc, char *argv[])
2055 static const char *lastdir;
2056 static int lastdir_len = -1;
2060 struct file_list *flist;
2061 struct timeval start_tv, end_tv;
2064 int disable_buffering, reenable_multiplex = -1;
2065 int flags = recurse ? FLAG_CONTENT_DIR : 0;
2066 int reading_remotely = filesfrom_host != NULL;
2067 int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
2069 | (filesfrom_convert ? RL_CONVERT : 0)
2071 | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
2072 int implied_dot_dir = 0;
2074 rprintf(FLOG, "building file list\n");
2075 if (show_filelist_progress)
2076 start_filelist_progress("building file list");
2077 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2078 rprintf(FCLIENT, "sending incremental file list\n");
2080 start_write = stats.total_written;
2081 gettimeofday(&start_tv, NULL);
2083 if (relative_paths && protocol_version >= 30)
2084 implied_dirs = 1; /* We send flagged implied dirs */
2086 #ifdef SUPPORT_HARD_LINKS
2087 if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2091 flist = cur_flist = flist_new(0, "send_file_list");
2093 dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2094 flags |= FLAG_DIVERT_DIRS;
2096 dir_flist = cur_flist;
2098 disable_buffering = io_start_buffering_out(f);
2099 if (filesfrom_fd >= 0) {
2100 if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2101 rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2102 full_fname(argv[0]));
2103 exit_cleanup(RERR_FILESELECT);
2105 if (protocol_version < 31) {
2106 /* Older protocols send the files-from data w/o packaging
2107 * it in multiplexed I/O packets, so temporarily switch
2108 * to buffered I/O to match this behavior. */
2109 reenable_multiplex = io_end_multiplex_in(MPLX_TO_BUFFERED);
2115 orig_dir = strdup(curr_dir);
2118 char fbuf[MAXPATHLEN], *fn, name_type;
2121 if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2123 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2127 strlcpy(fbuf, *argv++, MAXPATHLEN);
2129 sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2133 if (relative_paths) {
2134 /* We clean up fbuf below. */
2135 name_type = NORMAL_NAME;
2136 } else if (!len || fbuf[len - 1] == '/') {
2137 if (len == 2 && fbuf[0] == '.') {
2138 /* Turn "./" into just "." rather than "./." */
2141 if (len + 1 >= MAXPATHLEN)
2142 overflow_exit("send_file_list");
2146 name_type = DOTDIR_NAME;
2147 } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2148 && (len == 2 || fbuf[len-3] == '/')) {
2149 if (len + 2 >= MAXPATHLEN)
2150 overflow_exit("send_file_list");
2154 name_type = DOTDIR_NAME;
2155 } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2156 name_type = DOTDIR_NAME;
2158 name_type = NORMAL_NAME;
2162 if (!relative_paths) {
2163 p = strrchr(fbuf, '/');
2170 len -= p - fbuf + 1;
2175 if ((p = strstr(fbuf, "/./")) != NULL) {
2181 clean_fname(dir, 0);
2187 *--fn = '\0'; /* ensure room for '.' */
2190 /* A leading ./ can be used in relative mode to affect
2191 * the dest dir without its name being in the path. */
2192 if (*fn == '.' && fn[1] == '/' && fn[2] && !implied_dot_dir)
2193 implied_dot_dir = -1;
2194 len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2195 | CFN_DROP_TRAILING_DOT_DIR);
2200 name_type = DOTDIR_NAME;
2201 } else if (fn[0] == '.')
2202 name_type = DOTDIR_NAME;
2203 } else if (fn[len-1] == '/') {
2205 if (len == 1 && *fn == '.')
2206 name_type = DOTDIR_NAME;
2208 name_type = SLASH_ENDING_NAME;
2210 /* Reject a ".." dir in the active part of the path. */
2211 for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2212 if ((p[2] == '/' || p[2] == '\0')
2213 && (p == fn || p[-1] == '/')) {
2215 "found \"..\" dir in relative path: %s\n",
2217 exit_cleanup(RERR_SYNTAX);
2225 name_type = DOTDIR_NAME;
2228 dirlen = dir ? strlen(dir) : 0;
2229 if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2230 if (!change_pathname(NULL, dir, -dirlen))
2233 lastdir_len = pathname_len;
2234 } else if (!change_pathname(NULL, lastdir, lastdir_len)) {
2236 if (implied_dot_dir < 0)
2237 implied_dot_dir = 0;
2241 if (implied_dot_dir < 0) {
2242 implied_dot_dir = 1;
2243 send_file_name(f, flist, ".", NULL, (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR, ALL_FILTERS);
2247 memmove(fbuf, fn, len + 1);
2249 if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2250 || (name_type != DOTDIR_NAME && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, SERVER_FILTERS))
2251 || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2252 if (errno != ENOENT || missing_args == 0) {
2253 /* This is a transfer error, but inhibit deletion
2254 * only if we might be omitting an existing file. */
2255 if (errno != ENOENT)
2256 io_error |= IOERR_GENERAL;
2257 rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2260 } else if (missing_args == 1) {
2261 /* Just ignore the arg. */
2263 } else /* (missing_args == 2) */ {
2264 /* Send the arg as a "missing" entry with
2265 * mode 0, which tells the generator to delete it. */
2266 memset(&st, 0, sizeof st);
2270 /* A dot-dir should not be excluded! */
2271 if (name_type != DOTDIR_NAME && st.st_mode != 0
2272 && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2275 if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2276 rprintf(FINFO, "skipping directory %s\n", fbuf);
2280 if (inc_recurse && relative_paths && *fbuf) {
2281 if ((p = strchr(fbuf+1, '/')) != NULL) {
2282 if (p - fbuf == 1 && *fbuf == '.') {
2283 if ((fn = strchr(p+1, '/')) != NULL)
2287 send_implied_dirs(f, flist, fbuf, fbuf, p, flags,
2288 IS_MISSING_FILE(st) ? MISSING_NAME : name_type);
2292 } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
2293 /* Send the implied directories at the start of the
2294 * source spec, so we get their permissions right. */
2295 send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
2298 if (one_file_system)
2299 filesystem_dev = st.st_dev;
2301 if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
2302 struct file_struct *file;
2303 file = send_file_name(f, flist, fbuf, &st,
2304 FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
2309 if (name_type == DOTDIR_NAME) {
2310 if (send_dir_depth < 0) {
2312 change_local_filter_dir(fbuf, len, send_dir_depth);
2314 send_directory(f, flist, fbuf, len, flags);
2317 send_if_directory(f, flist, file, fbuf, len, flags);
2319 send_file_name(f, flist, fbuf, &st, flags, NO_FILTERS);
2322 if (reenable_multiplex >= 0)
2323 io_start_multiplex_in(reenable_multiplex);
2325 gettimeofday(&end_tv, NULL);
2326 stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2327 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2328 if (stats.flist_buildtime == 0)
2329 stats.flist_buildtime = 1;
2332 /* Indicate end of file list */
2333 if (io_error == 0 || ignore_errors)
2335 else if (use_safe_inc_flist) {
2336 write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2337 write_varint(f, io_error);
2339 if (delete_during && inc_recurse)
2340 fatal_unsafe_io_error();
2344 #ifdef SUPPORT_HARD_LINKS
2345 if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
2349 if (show_filelist_progress)
2350 finish_filelist_progress(flist);
2352 gettimeofday(&end_tv, NULL);
2353 stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
2354 + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
2356 /* When converting names, both sides keep an unsorted file-list array
2357 * because the names will differ on the sending and receiving sides
2358 * (both sides will use the unsorted index number for each item). */
2360 /* Sort the list without removing any duplicates. This allows the
2361 * receiving side to ask for whatever name it kept. For incremental
2362 * recursion mode, the sender marks duplicate dirs so that it can
2363 * send them together in a single file-list. */
2364 if (need_unsorted_flist) {
2365 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2366 out_of_memory("send_file_list");
2367 memcpy(flist->sorted, flist->files,
2368 flist->used * sizeof (struct file_struct*));
2370 flist->sorted = flist->files;
2371 flist_sort_and_clean(flist, 0);
2372 file_total += flist->used;
2373 file_old_total += flist->used;
2375 if (numeric_ids <= 0 && !inc_recurse)
2378 /* send the io_error flag */
2379 if (protocol_version < 30)
2380 write_int(f, ignore_errors ? 0 : io_error);
2381 else if (!use_safe_inc_flist && io_error && !ignore_errors)
2382 send_msg_int(MSG_IO_ERROR, io_error);
2384 if (disable_buffering)
2385 io_end_buffering_out(IOBUF_FREE_BUFS);
2387 stats.flist_size = stats.total_written - start_write;
2388 stats.num_files = flist->used;
2390 if (DEBUG_GTE(FLIST, 3))
2391 output_flist(flist);
2393 if (DEBUG_GTE(FLIST, 2))
2394 rprintf(FINFO, "send_file_list done\n");
2398 add_dirs_to_tree(-1, flist, stats.num_dirs);
2399 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2400 flist->parent_ndx = -1;
2401 flist_done_allocating(flist);
2402 if (send_dir_ndx < 0) {
2403 write_ndx(f, NDX_FLIST_EOF);
2405 if (DEBUG_GTE(FLIST, 3))
2406 rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2408 else if (file_total == 1) {
2409 /* If we're creating incremental file-lists and there
2410 * was just 1 item in the first file-list, send 1 more
2411 * file-list to check if this is a 1-file xfer. */
2412 send_extra_file_list(f, 1);
2416 if (DEBUG_GTE(FLIST, 3))
2417 rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2423 struct file_list *recv_file_list(int f, int dir_ndx)
2425 const char *good_dirname = NULL;
2426 struct file_list *flist;
2431 if (show_filelist_progress)
2432 start_filelist_progress("receiving file list");
2433 else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2434 rprintf(FCLIENT, "receiving incremental file list\n");
2435 rprintf(FLOG, "receiving file list\n");
2437 parse_name_map(usermap, True);
2439 parse_name_map(groupmap, False);
2442 start_read = stats.total_read;
2444 #ifdef SUPPORT_HARD_LINKS
2445 if (preserve_hard_links && !first_flist)
2449 flist = flist_new(0, "recv_file_list");
2452 if (flist->ndx_start == 1)
2453 dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
2454 dstart = dir_flist->used;
2460 while ((flags = read_byte(f)) != 0) {
2461 struct file_struct *file;
2463 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
2464 flags |= read_byte(f) << 8;
2466 if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
2468 if (!use_safe_inc_flist) {
2469 rprintf(FERROR, "Invalid flist flag: %x\n", flags);
2470 exit_cleanup(RERR_PROTOCOL);
2472 err = read_varint(f);
2478 flist_expand(flist, 1);
2479 file = recv_file_entry(f, flist, flags);
2482 static const char empty_dir[] = "\0";
2483 const char *cur_dir = file->dirname ? file->dirname : empty_dir;
2484 if (relative_paths && *cur_dir == '/')
2486 if (cur_dir != good_dirname) {
2487 const char *d = dir_ndx >= 0 ? f_name(dir_flist->files[dir_ndx], NULL) : empty_dir;
2488 if (strcmp(cur_dir, d) != 0) {
2490 "ABORTING due to invalid path from sender: %s/%s\n",
2491 cur_dir, file->basename);
2492 exit_cleanup(RERR_PROTOCOL);
2494 good_dirname = cur_dir;
2498 if (S_ISREG(file->mode)) {
2499 /* Already counted */
2500 } else if (S_ISDIR(file->mode)) {
2502 flist_expand(dir_flist, 1);
2503 dir_flist->files[dir_flist->used++] = file;
2506 } else if (S_ISLNK(file->mode))
2507 stats.num_symlinks++;
2508 else if (IS_DEVICE(file->mode))
2509 stats.num_symlinks++;
2511 stats.num_specials++;
2513 flist->files[flist->used++] = file;
2515 maybe_emit_filelist_progress(flist->used);
2517 if (DEBUG_GTE(FLIST, 2)) {
2518 char *name = f_name(file, NULL);
2519 rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
2522 file_total += flist->used;
2524 if (DEBUG_GTE(FLIST, 2))
2525 rprintf(FINFO, "received %d names\n", flist->used);
2527 if (show_filelist_progress)
2528 finish_filelist_progress(flist);
2530 if (need_unsorted_flist) {
2531 /* Create an extra array of index pointers that we can sort for
2532 * the generator's use (for wading through the files in sorted
2533 * order and for calling flist_find()). We keep the "files"
2534 * list unsorted for our exchange of index numbers with the
2535 * other side (since their names may not sort the same). */
2536 if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
2537 out_of_memory("recv_file_list");
2538 memcpy(flist->sorted, flist->files,
2539 flist->used * sizeof (struct file_struct*));
2540 if (inc_recurse && dir_flist->used > dstart) {
2541 static int dir_flist_malloced = 0;
2542 if (dir_flist_malloced < dir_flist->malloced) {
2543 dir_flist->sorted = realloc_array(dir_flist->sorted,
2544 struct file_struct *,
2545 dir_flist->malloced);
2546 dir_flist_malloced = dir_flist->malloced;
2548 memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
2549 (dir_flist->used - dstart) * sizeof (struct file_struct*));
2550 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2553 flist->sorted = flist->files;
2554 if (inc_recurse && dir_flist->used > dstart) {
2555 dir_flist->sorted = dir_flist->files;
2556 fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
2561 flist_done_allocating(flist);
2563 recv_id_list(f, flist);
2565 if (DEBUG_GTE(FLIST, 3))
2566 rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2569 /* The --relative option sends paths with a leading slash, so we need
2570 * to specify the strip_root option here. We rejected leading slashes
2571 * for a non-relative transfer in recv_file_entry(). */
2572 flist_sort_and_clean(flist, relative_paths);
2574 if (protocol_version < 30) {
2575 /* Recv the io_error flag */
2576 int err = read_int(f);
2579 } else if (inc_recurse && flist->ndx_start == 1) {
2580 if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
2581 flist->parent_ndx = -1;
2584 if (DEBUG_GTE(FLIST, 3))
2585 output_flist(flist);
2587 if (DEBUG_GTE(FLIST, 2))
2588 rprintf(FINFO, "recv_file_list done\n");
2590 stats.flist_size += stats.total_read - start_read;
2591 stats.num_files += flist->used;
2596 /* This is only used once by the receiver if the very first file-list
2597 * has exactly one item in it. */
2598 void recv_additional_file_list(int f)
2600 struct file_list *flist;
2601 int ndx = read_ndx(f);
2602 if (ndx == NDX_FLIST_EOF) {
2604 if (DEBUG_GTE(FLIST, 3))
2605 rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2606 change_local_filter_dir(NULL, 0, 0);
2608 ndx = NDX_FLIST_OFFSET - ndx;
2609 if (ndx < 0 || ndx >= dir_flist->used) {
2610 ndx = NDX_FLIST_OFFSET - ndx;
2612 "[%s] Invalid dir index: %d (%d - %d)\n",
2613 who_am_i(), ndx, NDX_FLIST_OFFSET,
2614 NDX_FLIST_OFFSET - dir_flist->used + 1);
2615 exit_cleanup(RERR_PROTOCOL);
2617 if (DEBUG_GTE(FLIST, 3)) {
2618 rprintf(FINFO, "[%s] receiving flist for dir %d\n",
2621 flist = recv_file_list(f, ndx);
2622 flist->parent_ndx = ndx;
2626 /* Search for an identically-named item in the file list. Note that the
2627 * items must agree in their directory-ness, or no match is returned. */
2628 int flist_find(struct file_list *flist, struct file_struct *f)
2630 int low = flist->low, high = flist->high;
2631 int diff, mid, mid_up;
2633 while (low <= high) {
2634 mid = (low + high) / 2;
2635 if (F_IS_ACTIVE(flist->sorted[mid]))
2638 /* Scan for the next non-empty entry using the cached
2639 * distance values. If the value isn't fully up-to-
2640 * date, update it. */
2641 mid_up = mid + F_DEPTH(flist->sorted[mid]);
2642 if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
2644 mid_up += F_DEPTH(flist->sorted[mid_up]);
2645 } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
2646 F_DEPTH(flist->sorted[mid]) = mid_up - mid;
2648 if (mid_up > high) {
2649 /* If there's nothing left above us, set high to
2650 * a non-empty entry below us and continue. */
2651 high = mid - (int)flist->sorted[mid]->len32;
2652 if (!F_IS_ACTIVE(flist->sorted[high])) {
2654 high -= (int)flist->sorted[high]->len32;
2655 } while (!F_IS_ACTIVE(flist->sorted[high]));
2656 flist->sorted[mid]->len32 = mid - high;
2661 diff = f_name_cmp(flist->sorted[mid_up], f);
2663 if (protocol_version < 29
2664 && S_ISDIR(flist->sorted[mid_up]->mode)
2665 != S_ISDIR(f->mode))
2677 /* Search for a name in the file list. You must specify want_dir_match as:
2678 * 1=match directories, 0=match non-directories, or -1=match either. */
2679 int flist_find_name(struct file_list *flist, const char *fname, int want_dir_match)
2681 struct { /* We have to create a temporary file_struct for the search. */
2682 struct file_struct f;
2683 char name_space[MAXPATHLEN];
2685 char fbuf[MAXPATHLEN];
2686 const char *slash = strrchr(fname, '/');
2687 const char *basename = slash ? slash+1 : fname;
2689 memset(&t.f, 0, FILE_STRUCT_LEN);
2690 memcpy((void *)t.f.basename, basename, strlen(basename)+1);
2693 strlcpy(fbuf, fname, slash - fname + 1);
2698 t.f.mode = want_dir_match > 0 ? S_IFDIR : S_IFREG;
2700 if (want_dir_match < 0)
2701 return flist_find_ignore_dirness(flist, &t.f);
2702 return flist_find(flist, &t.f);
2705 /* Search for an identically-named item in the file list. Differs from
2706 * flist_find in that an item that agrees with "f" in directory-ness is
2707 * preferred but one that does not is still found. */
2708 int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
2713 /* First look for an item that agrees in directory-ness. */
2714 ndx = flist_find(flist, f);
2718 /* Temporarily flip f->mode to look for an item of opposite
2719 * directory-ness. */
2720 save_mode = f->mode;
2721 f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
2722 ndx = flist_find(flist, f);
2723 f->mode = save_mode;
2728 * Free up any resources a file_struct has allocated
2729 * and clear the file.
2731 void clear_file(struct file_struct *file)
2733 /* The +1 zeros out the first char of the basename. */
2734 memset(file, 0, FILE_STRUCT_LEN + 1);
2735 /* In an empty entry, F_DEPTH() is an offset to the next non-empty
2736 * entry. Likewise for len32 in the opposite direction. We assume
2737 * that we're alone for now since flist_find() will adjust the counts
2738 * it runs into that aren't up-to-date. */
2739 file->len32 = F_DEPTH(file) = 1;
2742 /* Allocate a new file list. */
2743 struct file_list *flist_new(int flags, char *msg)
2745 struct file_list *flist;
2747 if (!(flist = new0(struct file_list)))
2750 if (flags & FLIST_TEMP) {
2751 if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0,
2756 /* This is a doubly linked list with prev looping back to
2757 * the end of the list, but the last next pointer is NULL. */
2759 flist->file_pool = pool_create(NORMAL_EXTENT, 0,
2762 if (!flist->file_pool)
2765 flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
2767 first_flist = cur_flist = flist->prev = flist;
2769 struct file_list *prev = first_flist->prev;
2771 flist->file_pool = first_flist->file_pool;
2773 flist->ndx_start = prev->ndx_start + prev->used + 1;
2774 flist->flist_num = prev->flist_num + 1;
2777 prev->next = first_flist->prev = flist;
2779 flist->pool_boundary = pool_boundary(flist->file_pool, 0);
2786 /* Free up all elements in a flist. */
2787 void flist_free(struct file_list *flist)
2790 /* Was FLIST_TEMP dir-list. */
2791 } else if (flist == flist->prev) {
2792 first_flist = cur_flist = NULL;
2796 if (flist == cur_flist)
2797 cur_flist = flist->next;
2798 if (flist == first_flist)
2799 first_flist = first_flist->next;
2801 flist->prev->next = flist->next;
2803 flist->next = first_flist;
2805 flist->next->prev = flist->prev;
2806 file_total -= flist->used;
2810 if (!flist->prev || !flist_cnt)
2811 pool_destroy(flist->file_pool);
2813 pool_free_old(flist->file_pool, flist->pool_boundary);
2815 if (flist->sorted && flist->sorted != flist->files)
2816 free(flist->sorted);
2821 /* This routine ensures we don't have any duplicate names in our file list.
2822 * duplicate names can cause corruption because of the pipelining. */
2823 static void flist_sort_and_clean(struct file_list *flist, int strip_root)
2825 char fbuf[MAXPATHLEN];
2830 if (flist->used == 0) {
2836 fsort(flist->sorted, flist->used);
2838 if (!am_sender || inc_recurse) {
2839 for (i = prev_i = 0; i < flist->used; i++) {
2840 if (F_IS_ACTIVE(flist->sorted[i])) {
2845 flist->low = prev_i;
2847 i = prev_i = flist->used - 1;
2851 while (++i < flist->used) {
2853 struct file_struct *file = flist->sorted[i];
2855 if (!F_IS_ACTIVE(file))
2857 if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
2859 else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
2860 int save_mode = file->mode;
2861 /* Make sure that this directory doesn't duplicate a
2862 * non-directory earlier in the list. */
2863 flist->high = prev_i;
2864 file->mode = S_IFREG;
2865 j = flist_find(flist, file);
2866 file->mode = save_mode;
2871 /* If one is a dir and the other is not, we want to
2872 * keep the dir because it might have contents in the
2873 * list. Otherwise keep the first one. */
2874 if (S_ISDIR(file->mode)) {
2875 struct file_struct *fp = flist->sorted[j];
2876 if (!S_ISDIR(fp->mode))
2880 file->flags |= FLAG_DUPLICATE;
2881 else { /* Make sure we merge our vital flags. */
2882 fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
2883 fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
2891 if (DEBUG_GTE(DUP, 1)) {
2893 "removing duplicate name %s from file list (%d)\n",
2894 f_name(file, fbuf), drop + flist->ndx_start);
2896 clear_file(flist->sorted[drop]);
2900 if (flist->low == drop) {
2902 j < i && !F_IS_ACTIVE(flist->sorted[j]);
2911 flist->high = prev_i;
2914 /* We need to strip off the leading slashes for relative
2915 * paths, but this must be done _after_ the sorting phase. */
2916 for (i = flist->low; i <= flist->high; i++) {
2917 struct file_struct *file = flist->sorted[i];
2921 while (*file->dirname == '/')
2923 if (!*file->dirname)
2924 file->dirname = NULL;
2928 if (prune_empty_dirs && !am_sender) {
2929 int j, prev_depth = 0;
2931 prev_i = 0; /* It's OK that this isn't really true. */
2933 for (i = flist->low; i <= flist->high; i++) {
2934 struct file_struct *fp, *file = flist->sorted[i];
2936 /* This temporarily abuses the F_DEPTH() value for a
2937 * directory that is in a chain that might get pruned.
2938 * We restore the old value if it gets a reprieve. */
2939 if (S_ISDIR(file->mode) && F_DEPTH(file)) {
2940 /* Dump empty dirs when coming back down. */
2941 for (j = prev_depth; j >= F_DEPTH(file); j--) {
2942 fp = flist->sorted[prev_i];
2943 if (F_DEPTH(fp) >= 0)
2945 prev_i = -F_DEPTH(fp)-1;
2948 prev_depth = F_DEPTH(file);
2949 if (is_excluded(f_name(file, fbuf), 1, ALL_FILTERS)) {
2950 /* Keep dirs through this dir. */
2951 for (j = prev_depth-1; ; j--) {
2952 fp = flist->sorted[prev_i];
2953 if (F_DEPTH(fp) >= 0)
2955 prev_i = -F_DEPTH(fp)-1;
2959 F_DEPTH(file) = -prev_i-1;
2962 /* Keep dirs through this non-dir. */
2963 for (j = prev_depth; ; j--) {
2964 fp = flist->sorted[prev_i];
2965 if (F_DEPTH(fp) >= 0)
2967 prev_i = -F_DEPTH(fp)-1;
2972 /* Dump all remaining empty dirs. */
2974 struct file_struct *fp = flist->sorted[prev_i];
2975 if (F_DEPTH(fp) >= 0)
2977 prev_i = -F_DEPTH(fp)-1;
2981 for (i = flist->low; i <= flist->high; i++) {
2982 if (F_IS_ACTIVE(flist->sorted[i]))
2986 for (i = flist->high; i >= flist->low; i--) {
2987 if (F_IS_ACTIVE(flist->sorted[i]))
2994 static void output_flist(struct file_list *flist)
2996 char uidbuf[16], gidbuf[16], depthbuf[16];
2997 struct file_struct *file;
2998 const char *root, *dir, *slash, *name, *trail;
2999 const char *who = who_am_i();
3002 rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
3003 who, flist->ndx_start, flist->used, flist->low, flist->high);
3004 for (i = 0; i < flist->used; i++) {
3005 file = flist->files[i];
3006 if ((am_root || am_sender) && uid_ndx) {
3007 snprintf(uidbuf, sizeof uidbuf, " uid=%u",
3012 static char parens[] = "(\0)\0\0\0";
3013 char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
3014 snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
3015 pp, F_GROUP(file), pp + 2);
3019 snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
3020 if (F_IS_ACTIVE(file)) {
3021 root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
3022 if ((dir = file->dirname) == NULL)
3026 name = file->basename;
3027 trail = S_ISDIR(file->mode) ? "/" : "";
3029 root = dir = slash = name = trail = "";
3031 "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
3032 who, i + flist->ndx_start,
3033 root, dir, slash, name, trail,
3034 (int)file->mode, comma_num(F_LENGTH(file)),
3035 uidbuf, gidbuf, file->flags);
3039 enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
3040 enum fnc_type { t_PATH, t_ITEM };
3042 static int found_prefix;
3044 /* Compare the names of two file_struct entities, similar to how strcmp()
3045 * would do if it were operating on the joined strings.
3047 * Some differences beginning with protocol_version 29: (1) directory names
3048 * are compared with an assumed trailing slash so that they compare in a
3049 * way that would cause them to sort immediately prior to any content they
3050 * may have; (2) a directory of any name compares after a non-directory of
3051 * any name at the same depth; (3) a directory with name "." compares prior
3052 * to anything else. These changes mean that a directory and a non-dir
3053 * with the same name will not compare as equal (protocol_version >= 29).
3055 * The dirname component can be an empty string, but the basename component
3056 * cannot (and never is in the current codebase). The basename component
3057 * may be NULL (for a removed item), in which case it is considered to be
3058 * after any existing item. */
3059 int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
3062 const uchar *c1, *c2;
3063 enum fnc_state state1, state2;
3064 enum fnc_type type1, type2;
3065 enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
3067 if (!f1 || !F_IS_ACTIVE(f1)) {
3068 if (!f2 || !F_IS_ACTIVE(f2))
3072 if (!f2 || !F_IS_ACTIVE(f2))
3075 c1 = (uchar*)f1->dirname;
3076 c2 = (uchar*)f2->dirname;
3080 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
3081 c1 = (const uchar*)f1->basename;
3082 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
3084 state1 = s_TRAILING;
3093 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3094 c2 = (const uchar*)f2->basename;
3095 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3097 state2 = s_TRAILING;
3107 return type1 == t_PATH ? 1 : -1;
3117 type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
3118 c1 = (const uchar*)f1->basename;
3119 if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
3121 state1 = s_TRAILING;
3127 state1 = s_TRAILING;
3128 if (type1 == t_PATH) {
3137 if (*c2 && type1 != type2)
3138 return type1 == t_PATH ? 1 : -1;
3147 type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3148 c2 = (const uchar*)f2->basename;
3149 if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3151 state2 = s_TRAILING;
3157 state2 = s_TRAILING;
3158 if (type2 == t_PATH) {
3171 return type1 == t_PATH ? 1 : -1;
3173 } while ((dif = (int)*c1++ - (int)*c2++) == 0);
3178 /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
3179 * not match if f2's basename is not an exact match of a path element in f1.
3180 * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
3181 int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
3185 return found_prefix;
3188 char *f_name_buf(void)
3190 static char names[5][MAXPATHLEN];
3191 static unsigned int n;
3193 n = (n + 1) % (sizeof names / sizeof names[0]);
3198 /* Return a copy of the full filename of a flist entry, using the indicated
3199 * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
3200 * done because we checked the size when creating the file_struct entry.
3202 char *f_name(const struct file_struct *f, char *fbuf)
3204 if (!f || !F_IS_ACTIVE(f))
3208 fbuf = f_name_buf();
3211 int len = strlen(f->dirname);
3212 memcpy(fbuf, f->dirname, len);
3214 strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
3216 strlcpy(fbuf, f->basename, MAXPATHLEN);
3221 /* Do a non-recursive scan of the named directory, possibly ignoring all
3222 * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
3223 * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
3224 * buffer (the functions we call will append names onto the end, but the old
3225 * dir value will be restored on exit). */
3226 struct file_list *get_dirlist(char *dirname, int dlen, int flags)
3228 struct file_list *dirlist;
3229 char dirbuf[MAXPATHLEN];
3230 int save_recurse = recurse;
3231 int save_xfer_dirs = xfer_dirs;
3232 int save_prune_empty_dirs = prune_empty_dirs;
3233 int senddir_fd = flags & GDL_IGNORE_FILTER_RULES ? -2 : -1;
3234 int senddir_flags = FLAG_CONTENT_DIR;
3237 dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3238 if (dlen >= MAXPATHLEN)
3243 dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3245 if (flags & GDL_PERHAPS_DIR)
3246 senddir_flags |= FLAG_PERHAPS_DIR;
3250 send_directory(senddir_fd, dirlist, dirname, dlen, senddir_flags);
3251 xfer_dirs = save_xfer_dirs;
3252 recurse = save_recurse;
3253 if (INFO_GTE(PROGRESS, 1))
3254 flist_count_offset += dirlist->used;
3256 prune_empty_dirs = 0;
3257 dirlist->sorted = dirlist->files;
3258 flist_sort_and_clean(dirlist, 0);
3259 prune_empty_dirs = save_prune_empty_dirs;
3261 if (DEBUG_GTE(FLIST, 3))
3262 output_flist(dirlist);