2 Copyright (C) Andrew Tridgell 1996
3 Copyright (C) Paul Mackerras 1996
4 Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * Generate and receive file lists
24 * @sa http://lists.samba.org/pipermail/rsync/2000-June/002351.html
30 extern struct stats stats;
33 extern int do_progress;
37 extern int always_checksum;
39 extern int ignore_errors;
40 extern int numeric_ids;
42 extern int cvs_exclude;
45 extern char curr_dir[MAXPATHLEN];
46 extern char *files_from;
47 extern int filesfrom_fd;
49 extern int one_file_system;
50 extern int preserve_links;
51 extern int preserve_hard_links;
52 extern int preserve_perms;
53 extern int preserve_devices;
54 extern int preserve_uid;
55 extern int preserve_gid;
56 extern int relative_paths;
57 extern int implied_dirs;
58 extern int copy_links;
59 extern int copy_unsafe_links;
60 extern int protocol_version;
61 extern int sanitize_paths;
63 extern int read_batch;
64 extern int write_batch;
66 extern struct exclude_list_struct exclude_list;
67 extern struct exclude_list_struct server_exclude_list;
68 extern struct exclude_list_struct local_exclude_list;
72 static char empty_sum[MD4_SUM_LENGTH];
73 static unsigned int file_struct_len;
75 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
76 static void output_flist(struct file_list *flist);
82 /* Figure out how big the file_struct is without trailing padding */
83 file_struct_len = offsetof(struct file_struct, flags) + sizeof f.flags;
87 static int show_filelist_p(void)
89 return verbose && (recurse || files_from) && !am_server;
92 static void start_filelist_progress(char *kind)
94 rprintf(FINFO, "%s ... ", kind);
95 if ((verbose > 1) || do_progress)
101 static void emit_filelist_progress(const struct file_list *flist)
103 rprintf(FINFO, " %d files...\r", flist->count);
107 static void maybe_emit_filelist_progress(const struct file_list *flist)
109 if (do_progress && show_filelist_p() && ((flist->count % 100) == 0))
110 emit_filelist_progress(flist);
114 static void finish_filelist_progress(const struct file_list *flist)
117 /* This overwrites the progress line */
118 rprintf(FINFO, "%d file%sto consider\n",
119 flist->count, flist->count == 1 ? " " : "s ");
121 rprintf(FINFO, "done\n");
124 void show_flist_stats(void)
130 static void list_file_entry(struct file_struct *f)
135 /* this can happen if duplicate names were removed */
138 permstring(perms, f->mode);
141 if (preserve_links && S_ISLNK(f->mode)) {
142 rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
144 (double)f->length, timestring(f->modtime),
145 f_name(f), f->u.link);
148 rprintf(FINFO, "%s %11.0f %s %s\n",
150 (double)f->length, timestring(f->modtime),
156 * Stat either a symlink or its referent, depending on the settings of
157 * copy_links, copy_unsafe_links, etc.
159 * @retval -1 on error
161 * @retval 0 for success
163 * @post If @p path is a symlink, then @p linkbuf (of size @c
164 * MAXPATHLEN) contains the symlink target.
166 * @post @p buffer contains information about the link or the
167 * referrent as appropriate, if they exist.
169 int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf)
173 return do_stat(path, buffer);
174 if (do_lstat(path, buffer) == -1)
176 if (S_ISLNK(buffer->st_mode)) {
177 int l = readlink((char *)path, linkbuf, MAXPATHLEN - 1);
181 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
183 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
186 return do_stat(path, buffer);
191 return do_stat(path, buffer);
195 int link_stat(const char *path, STRUCT_STAT *buffer)
199 return do_stat(path, buffer);
200 return do_lstat(path, buffer);
202 return do_stat(path, buffer);
207 * This function is used to check if a file should be included/excluded
208 * from the list of files based on its name and type etc. The value of
209 * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
211 static int check_exclude_file(char *fname, int is_dir, int exclude_level)
215 #if 0 /* This currently never happens, so avoid a useless compare. */
216 if (exclude_level == NO_EXCLUDES)
220 /* never exclude '.', even if somebody does --exclude '*' */
221 if (fname[0] == '.' && !fname[1])
223 /* Handle the -R version of the '.' dir. */
224 if (fname[0] == '/') {
225 int len = strlen(fname);
226 if (fname[len-1] == '.' && fname[len-2] == '/')
230 if (server_exclude_list.head
231 && check_exclude(&server_exclude_list, fname, is_dir) < 0)
233 if (exclude_level != ALL_EXCLUDES)
235 if (exclude_list.head
236 && (rc = check_exclude(&exclude_list, fname, is_dir)) != 0)
238 if (local_exclude_list.head
239 && check_exclude(&local_exclude_list, fname, is_dir) < 0)
244 /* used by the one_file_system code */
245 static dev_t filesystem_dev;
247 static void set_filesystem(char *fname)
250 if (link_stat(fname, &st) != 0)
252 filesystem_dev = st.st_dev;
256 static int to_wire_mode(mode_t mode)
259 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
260 return (mode & ~(_S_IFMT)) | 0120000;
265 static mode_t from_wire_mode(int mode)
267 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
268 return (mode & ~(_S_IFMT)) | _S_IFLNK;
273 static void send_directory(int f, struct file_list *flist, char *dir);
275 static char *flist_dir;
276 static int flist_dir_len;
280 * Make sure @p flist is big enough to hold at least @p flist->count
283 void flist_expand(struct file_list *flist)
285 struct file_struct **new_ptr;
287 if (flist->count < flist->malloced)
290 if (flist->malloced < FLIST_START)
291 flist->malloced = FLIST_START;
292 else if (flist->malloced >= FLIST_LINEAR)
293 flist->malloced += FLIST_LINEAR;
295 flist->malloced *= 2;
298 * In case count jumped or we are starting the list
299 * with a known size just set it.
301 if (flist->malloced < flist->count)
302 flist->malloced = flist->count;
304 new_ptr = realloc_array(flist->files, struct file_struct *,
308 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
310 (double)sizeof flist->files[0] * flist->malloced,
311 (new_ptr == flist->files) ? " not" : "");
314 flist->files = new_ptr;
317 out_of_memory("flist_expand");
320 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
322 unsigned short flags;
323 static time_t modtime;
327 static uint32 rdev_major;
330 static char lastname[MAXPATHLEN];
331 char fname[MAXPATHLEN];
339 modtime = 0, mode = 0;
340 dev = 0, rdev = makedev(0, 0);
347 io_write_phase = "send_file_entry";
349 f_name_to(file, fname);
353 if (file->mode == mode)
354 flags |= XMIT_SAME_MODE;
357 if (preserve_devices) {
358 if (protocol_version < 28) {
359 if (IS_DEVICE(mode)) {
360 if (file->u.rdev == rdev)
361 flags |= XMIT_SAME_RDEV_pre28;
365 rdev = makedev(0, 0);
366 } else if (IS_DEVICE(mode)) {
368 if ((uint32)major(rdev) == rdev_major)
369 flags |= XMIT_SAME_RDEV_MAJOR;
371 rdev_major = major(rdev);
372 if ((uint32)minor(rdev) <= 0xFFu)
373 flags |= XMIT_RDEV_MINOR_IS_SMALL;
376 if (file->uid == uid)
377 flags |= XMIT_SAME_UID;
380 if (file->gid == gid)
381 flags |= XMIT_SAME_GID;
384 if (file->modtime == modtime)
385 flags |= XMIT_SAME_TIME;
387 modtime = file->modtime;
389 #if SUPPORT_HARD_LINKS
390 if (file->link_u.idev) {
391 if (file->F_DEV == dev) {
392 if (protocol_version >= 28)
393 flags |= XMIT_SAME_DEV;
396 flags |= XMIT_HAS_IDEV_DATA;
401 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
403 l2 = strlen(fname+l1);
406 flags |= XMIT_SAME_NAME;
408 flags |= XMIT_LONG_NAME;
410 /* We must make sure we don't send a zero flag byte or the
411 * other end will terminate the flist transfer. Note that
412 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
413 * it's harmless way to add a bit to the first flag byte. */
414 if (protocol_version >= 28) {
415 if (!flags && !S_ISDIR(mode))
416 flags |= XMIT_TOP_DIR;
417 if ((flags & 0xFF00) || !flags) {
418 flags |= XMIT_EXTENDED_FLAGS;
419 write_byte(f, flags);
420 write_byte(f, flags >> 8);
422 write_byte(f, flags);
424 if (!(flags & 0xFF) && !S_ISDIR(mode))
425 flags |= XMIT_TOP_DIR;
427 flags |= XMIT_LONG_NAME;
428 write_byte(f, flags);
430 if (flags & XMIT_SAME_NAME)
432 if (flags & XMIT_LONG_NAME)
436 write_buf(f, fname + l1, l2);
438 write_longint(f, file->length);
439 if (!(flags & XMIT_SAME_TIME))
440 write_int(f, modtime);
441 if (!(flags & XMIT_SAME_MODE))
442 write_int(f, to_wire_mode(mode));
443 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
448 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
453 if (preserve_devices && IS_DEVICE(mode)) {
454 if (protocol_version < 28) {
455 if (!(flags & XMIT_SAME_RDEV_pre28))
456 write_int(f, (int)rdev);
458 if (!(flags & XMIT_SAME_RDEV_MAJOR))
459 write_int(f, major(rdev));
460 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
461 write_byte(f, minor(rdev));
463 write_int(f, minor(rdev));
468 if (preserve_links && S_ISLNK(mode)) {
469 int len = strlen(file->u.link);
471 write_buf(f, file->u.link, len);
475 #if SUPPORT_HARD_LINKS
476 if (flags & XMIT_HAS_IDEV_DATA) {
477 if (protocol_version < 26) {
478 /* 32-bit dev_t and ino_t */
480 write_int(f, file->F_INODE);
482 /* 64-bit dev_t and ino_t */
483 if (!(flags & XMIT_SAME_DEV))
484 write_longint(f, dev);
485 write_longint(f, file->F_INODE);
490 if (always_checksum) {
494 else if (protocol_version < 28) {
495 /* Prior to 28, we sent a useless set of nulls. */
501 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
505 strlcpy(lastname, fname, MAXPATHLEN);
507 io_write_phase = "unknown";
512 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
513 struct file_list *flist, int f)
515 static time_t modtime;
519 static uint32 rdev_major;
522 static char lastname[MAXPATHLEN], *lastdir;
523 static int lastdir_len = -1;
524 char thisname[MAXPATHLEN];
525 unsigned int l1 = 0, l2 = 0;
526 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
528 char *basename, *dirname, *bp;
529 struct file_struct *file;
532 modtime = 0, mode = 0;
533 dev = 0, rdev = makedev(0, 0);
541 if (flags & XMIT_SAME_NAME)
544 if (flags & XMIT_LONG_NAME)
549 if (l2 >= MAXPATHLEN - l1) {
551 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
552 flags, l1, l2, lastname);
553 overflow("receive_file_entry");
556 strlcpy(thisname, lastname, l1 + 1);
557 read_sbuf(f, &thisname[l1], l2);
558 thisname[l1 + l2] = 0;
560 strlcpy(lastname, thisname, MAXPATHLEN);
562 clean_fname(thisname);
565 sanitize_path(thisname, NULL);
567 if ((basename = strrchr(thisname, '/')) != NULL) {
568 dirname_len = ++basename - thisname; /* counts future '\0' */
569 if (lastdir_len == dirname_len - 1
570 && strncmp(thisname, lastdir, lastdir_len) == 0) {
572 dirname_len = 0; /* indicates no copy is needed */
580 basename_len = strlen(basename) + 1; /* count the '\0' */
582 file_length = read_longint(f);
583 if (!(flags & XMIT_SAME_TIME))
584 modtime = (time_t)read_int(f);
585 if (!(flags & XMIT_SAME_MODE))
586 mode = from_wire_mode(read_int(f));
588 if (preserve_uid && !(flags & XMIT_SAME_UID))
589 uid = (uid_t)read_int(f);
590 if (preserve_gid && !(flags & XMIT_SAME_GID))
591 gid = (gid_t)read_int(f);
593 if (preserve_devices) {
594 if (protocol_version < 28) {
595 if (IS_DEVICE(mode)) {
596 if (!(flags & XMIT_SAME_RDEV_pre28))
597 rdev = (dev_t)read_int(f);
599 rdev = makedev(0, 0);
600 } else if (IS_DEVICE(mode)) {
602 if (!(flags & XMIT_SAME_RDEV_MAJOR))
603 rdev_major = read_int(f);
604 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
605 rdev_minor = read_byte(f);
607 rdev_minor = read_int(f);
608 rdev = makedev(rdev_major, rdev_minor);
613 if (preserve_links && S_ISLNK(mode)) {
614 linkname_len = read_int(f) + 1; /* count the '\0' */
615 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
616 rprintf(FERROR, "overflow: linkname_len=%d\n",
618 overflow("receive_file_entry");
625 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
627 alloc_len = file_struct_len + dirname_len + basename_len
628 + linkname_len + sum_len;
629 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
631 file = *fptr = (struct file_struct *)bp;
632 memset(bp, 0, file_struct_len);
633 bp += file_struct_len;
635 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
636 file->modtime = modtime;
637 file->length = file_length;
643 file->dirname = lastdir = bp;
644 lastdir_len = dirname_len - 1;
645 memcpy(bp, dirname, dirname_len - 1);
649 file->dirname = dirname;
652 memcpy(bp, basename, basename_len);
655 if (preserve_devices && IS_DEVICE(mode))
661 read_sbuf(f, bp, linkname_len - 1);
663 sanitize_path(bp, lastdir);
668 #if SUPPORT_HARD_LINKS
669 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
670 flags |= XMIT_HAS_IDEV_DATA;
671 if (flags & XMIT_HAS_IDEV_DATA) {
673 if (protocol_version < 26) {
677 if (!(flags & XMIT_SAME_DEV))
678 dev = read_longint(f);
679 inode = read_longint(f);
681 if (flist->hlink_pool) {
682 file->link_u.idev = pool_talloc(flist->hlink_pool,
683 struct idev, 1, "inode_table");
684 file->F_INODE = inode;
690 if (always_checksum) {
693 file->u.sum = sum = bp;
695 } else if (protocol_version < 28) {
696 /* Prior to 28, we get a useless set of nulls. */
702 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
706 if (!preserve_perms) {
707 extern int orig_umask;
708 /* set an appropriate set of permissions based on original
709 * permissions and umask. This emulates what GNU cp does */
710 file->mode &= ~orig_umask;
716 * Create a file_struct for a named file by reading its stat()
717 * information and performing extensive checks against global
720 * @return the new file, or NULL if there was an error or this file
721 * should be excluded.
723 * @todo There is a small optimization opportunity here to avoid
724 * stat()ing the file in some circumstances, which has a certain cost.
725 * We are called immediately after doing readdir(), and so we may
726 * already know the d_type of the file. We could for example avoid
727 * statting directories if we're not recursing, but this is not a very
728 * important case. Some systems may not have d_type.
730 struct file_struct *make_file(char *fname,
731 struct file_list *flist, int exclude_level)
733 static char *lastdir;
734 static int lastdir_len = -1;
735 struct file_struct *file;
737 char sum[SUM_LENGTH];
738 char thisname[MAXPATHLEN];
739 char linkname[MAXPATHLEN];
740 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
741 char *basename, *dirname, *bp;
742 unsigned short flags = 0;
744 if (!flist || !flist->count) /* Ignore lastdir when invalid. */
747 if (strlcpy(thisname, fname, sizeof thisname)
748 >= sizeof thisname - flist_dir_len) {
749 rprintf(FINFO, "skipping overly long name: %s\n", fname);
752 clean_fname(thisname);
754 sanitize_path(thisname, NULL);
756 memset(sum, 0, SUM_LENGTH);
758 if (readlink_stat(thisname, &st, linkname) != 0) {
759 int save_errno = errno;
760 /* See if file is excluded before reporting an error. */
761 if (exclude_level != NO_EXCLUDES
762 && check_exclude_file(thisname, 0, exclude_level))
764 if (save_errno == ENOENT) {
765 /* Avoid "vanished" error if symlink points nowhere. */
766 if (copy_links && do_lstat(thisname, &st) == 0
767 && S_ISLNK(st.st_mode)) {
768 io_error |= IOERR_GENERAL;
769 rprintf(FERROR, "symlink has no referent: %s\n",
770 full_fname(thisname));
772 enum logcode c = am_daemon && protocol_version < 28
774 io_error |= IOERR_VANISHED;
775 rprintf(c, "file has vanished: %s\n",
776 full_fname(thisname));
779 io_error |= IOERR_GENERAL;
780 rsyserr(FERROR, save_errno, "readlink %s failed",
781 full_fname(thisname));
786 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
787 if (exclude_level == NO_EXCLUDES)
790 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
791 rprintf(FINFO, "skipping directory %s\n", thisname);
795 /* We only care about directories because we need to avoid recursing
796 * into a mount-point directory, not to avoid copying a symlinked
797 * file if -L (or similar) was specified. */
798 if (one_file_system && st.st_dev != filesystem_dev
799 && S_ISDIR(st.st_mode))
800 flags |= FLAG_MOUNT_POINT;
802 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
805 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
811 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
812 who_am_i(), thisname, exclude_level);
815 if ((basename = strrchr(thisname, '/')) != NULL) {
816 dirname_len = ++basename - thisname; /* counts future '\0' */
817 if (lastdir_len == dirname_len - 1
818 && strncmp(thisname, lastdir, lastdir_len) == 0) {
820 dirname_len = 0; /* indicates no copy is needed */
828 basename_len = strlen(basename) + 1; /* count the '\0' */
831 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
836 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
838 alloc_len = file_struct_len + dirname_len + basename_len
839 + linkname_len + sum_len;
841 bp = pool_alloc(flist->file_pool, alloc_len,
842 "receive_file_entry");
844 if (!(bp = new_array(char, alloc_len)))
845 out_of_memory("receive_file_entry");
848 file = (struct file_struct *)bp;
849 memset(bp, 0, file_struct_len);
850 bp += file_struct_len;
853 file->modtime = st.st_mtime;
854 file->length = st.st_size;
855 file->mode = st.st_mode;
856 file->uid = st.st_uid;
857 file->gid = st.st_gid;
859 #if SUPPORT_HARD_LINKS
860 if (flist && flist->hlink_pool) {
861 if (protocol_version < 28) {
862 if (S_ISREG(st.st_mode))
863 file->link_u.idev = pool_talloc(
864 flist->hlink_pool, struct idev, 1,
867 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
868 file->link_u.idev = pool_talloc(
869 flist->hlink_pool, struct idev, 1,
873 if (file->link_u.idev) {
874 file->F_DEV = st.st_dev;
875 file->F_INODE = st.st_ino;
880 file->dirname = lastdir = bp;
881 lastdir_len = dirname_len - 1;
882 memcpy(bp, dirname, dirname_len - 1);
886 file->dirname = dirname;
889 memcpy(bp, basename, basename_len);
892 #ifdef HAVE_STRUCT_STAT_ST_RDEV
893 if (preserve_devices && IS_DEVICE(st.st_mode))
894 file->u.rdev = st.st_rdev;
900 memcpy(bp, linkname, linkname_len);
907 file_checksum(thisname, bp, st.st_size);
911 file->basedir = flist_dir;
913 if (!S_ISDIR(st.st_mode))
914 stats.total_size += st.st_size;
920 void send_file_name(int f, struct file_list *flist, char *fname,
921 int recursive, unsigned short base_flags)
923 struct file_struct *file;
924 char fbuf[MAXPATHLEN];
925 extern int delete_excluded;
927 /* f is set to -1 when calculating deletion file list */
928 file = make_file(fname, flist,
929 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
934 maybe_emit_filelist_progress(flist);
939 file->flags |= FLAG_TOP_DIR;
941 if (file->basename[0]) {
942 flist->files[flist->count++] = file;
943 send_file_entry(file, f, base_flags);
946 if (recursive && S_ISDIR(file->mode)
947 && !(file->flags & FLAG_MOUNT_POINT)) {
948 struct exclude_list_struct last_list = local_exclude_list;
949 local_exclude_list.head = local_exclude_list.tail = NULL;
950 send_directory(f, flist, f_name_to(file, fbuf));
952 rprintf(FINFO, "[%s] popping %sexclude list\n",
953 who_am_i(), local_exclude_list.debug_type);
955 clear_exclude_list(&local_exclude_list);
956 local_exclude_list = last_list;
961 static void send_directory(int f, struct file_list *flist, char *dir)
965 char fname[MAXPATHLEN];
971 io_error |= IOERR_GENERAL;
972 rsyserr(FERROR, errno, "opendir %s failed", full_fname(dir));
976 offset = strlcpy(fname, dir, MAXPATHLEN);
978 if (offset >= MAXPATHLEN || p[-1] != '/') {
979 if (offset >= MAXPATHLEN - 1) {
980 io_error |= IOERR_GENERAL;
981 rprintf(FERROR, "skipping long-named directory: %s\n",
991 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
992 < MAXPATHLEN - offset) {
993 add_exclude_file(&local_exclude_list, fname,
994 XFLG_WORD_SPLIT | XFLG_WORDS_ONLY);
996 io_error |= IOERR_GENERAL;
998 "cannot cvs-exclude in long-named directory %s\n",
1003 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1004 char *dname = d_name(di);
1005 if (dname[0] == '.' && (dname[1] == '\0'
1006 || (dname[1] == '.' && dname[2] == '\0')))
1008 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
1009 send_file_name(f, flist, fname, recurse, 0);
1011 io_error |= IOERR_GENERAL;
1013 "cannot send long-named file %s\n",
1018 io_error |= IOERR_GENERAL;
1019 rsyserr(FERROR, errno, "readdir(%s)", dir);
1027 * The delete_files() function in receiver.c sets f to -1 so that we just
1028 * construct the file list in memory without sending it over the wire. It
1029 * also has the side-effect of ignoring user-excludes if delete_excluded
1030 * is set (so that the delete list includes user-excluded files).
1032 struct file_list *send_file_list(int f, int argc, char *argv[])
1036 char *p, *dir, olddir[sizeof curr_dir];
1037 char lastpath[MAXPATHLEN] = "";
1038 struct file_list *flist;
1042 if (show_filelist_p() && f != -1)
1043 start_filelist_progress("building file list");
1045 start_write = stats.total_written;
1047 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1051 io_start_buffering_out(f);
1052 if (filesfrom_fd >= 0) {
1053 if (argv[0] && !push_dir(argv[0])) {
1054 rsyserr(FERROR, errno, "push_dir %s failed",
1055 full_fname(argv[0]));
1056 exit_cleanup(RERR_FILESELECT);
1063 char fname2[MAXPATHLEN];
1064 char *fname = fname2;
1067 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1069 sanitize_path(fname, NULL);
1073 strlcpy(fname, *argv++, MAXPATHLEN);
1075 sanitize_path(fname, NULL);
1079 if (fname[l - 1] == '/') {
1080 if (l == 2 && fname[0] == '.') {
1081 /* Turn "./" into just "." rather than "./." */
1083 } else if (l < MAXPATHLEN) {
1089 if (link_stat(fname, &st) != 0) {
1091 io_error |= IOERR_GENERAL;
1092 rsyserr(FERROR, errno, "link_stat %s failed",
1098 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1099 rprintf(FINFO, "skipping directory %s\n", fname);
1106 if (!relative_paths) {
1107 p = strrchr(fname, '/');
1116 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1117 /* this ensures we send the intermediate directories,
1118 thus getting their permissions right */
1119 char *lp = lastpath, *fn = fname, *slash = fname;
1121 /* Skip any initial directories in our path that we
1122 * have in common with lastpath. */
1123 while (*fn && *lp == *fn) {
1129 if (fn != p || (*lp && *lp != '/')) {
1130 int copy_links_saved = copy_links;
1131 int recurse_saved = recurse;
1132 copy_links = copy_unsafe_links;
1133 /* set recurse to 1 to prevent make_file
1134 * from ignoring directory, but still
1135 * turn off the recursive parameter to
1138 while ((slash = strchr(slash+1, '/')) != 0) {
1140 send_file_name(f, flist, fname, 0, 0);
1143 copy_links = copy_links_saved;
1144 recurse = recurse_saved;
1146 strlcpy(lastpath, fname, sizeof lastpath);
1155 static char *lastdir;
1156 static int lastdir_len;
1158 strcpy(olddir, curr_dir); /* can't overflow */
1160 if (!push_dir(dir)) {
1161 io_error |= IOERR_GENERAL;
1162 rsyserr(FERROR, errno, "push_dir %s failed",
1167 if (lastdir && strcmp(lastdir, dir) == 0) {
1168 flist_dir = lastdir;
1169 flist_dir_len = lastdir_len;
1171 flist_dir = lastdir = strdup(dir);
1172 flist_dir_len = lastdir_len = strlen(dir);
1176 if (one_file_system)
1177 set_filesystem(fname);
1179 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1184 if (!pop_dir(olddir)) {
1185 rsyserr(FERROR, errno, "pop_dir %s failed",
1187 exit_cleanup(RERR_FILESELECT);
1193 send_file_entry(NULL, f, 0);
1195 if (show_filelist_p())
1196 finish_filelist_progress(flist);
1199 if (flist->hlink_pool) {
1200 pool_destroy(flist->hlink_pool);
1201 flist->hlink_pool = NULL;
1204 clean_flist(flist, 0, 0);
1207 /* Now send the uid/gid list. This was introduced in
1208 * protocol version 15 */
1211 /* send the io_error flag */
1212 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1215 stats.flist_size = stats.total_written - start_write;
1216 stats.num_files = flist->count;
1218 write_batch_flist_info(flist->count, flist->files);
1222 output_flist(flist);
1225 rprintf(FINFO, "send_file_list done\n");
1231 struct file_list *recv_file_list(int f)
1233 struct file_list *flist;
1234 unsigned short flags;
1236 extern int list_only;
1238 if (show_filelist_p())
1239 start_filelist_progress("receiving file list");
1241 start_read = stats.total_read;
1243 flist = flist_new(WITH_HLINK, "recv_file_list");
1246 flist->malloced = 1000;
1247 flist->files = new_array(struct file_struct *, flist->malloced);
1252 while ((flags = read_byte(f)) != 0) {
1253 int i = flist->count;
1255 flist_expand(flist);
1257 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1258 flags |= read_byte(f) << 8;
1259 receive_file_entry(&flist->files[i], flags, flist, f);
1261 if (S_ISREG(flist->files[i]->mode))
1262 stats.total_size += flist->files[i]->length;
1266 maybe_emit_filelist_progress(flist);
1269 rprintf(FINFO, "recv_file_name(%s)\n",
1270 f_name(flist->files[i]));
1273 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1276 rprintf(FINFO, "received %d names\n", flist->count);
1278 if (show_filelist_p())
1279 finish_filelist_progress(flist);
1281 clean_flist(flist, relative_paths, 1);
1284 /* Now send the uid/gid list. This was introduced in
1285 * protocol version 15 */
1286 recv_uid_list(f, flist);
1289 /* Recv the io_error flag */
1290 if (lp_ignore_errors(module_id) || ignore_errors)
1293 io_error |= read_int(f);
1298 output_flist(flist);
1302 for (i = 0; i < flist->count; i++)
1303 list_file_entry(flist->files[i]);
1307 rprintf(FINFO, "recv_file_list done\n");
1309 stats.flist_size = stats.total_read - start_read;
1310 stats.num_files = flist->count;
1315 out_of_memory("recv_file_list");
1316 return NULL; /* not reached */
1320 int file_compare(struct file_struct **file1, struct file_struct **file2)
1322 struct file_struct *f1 = *file1;
1323 struct file_struct *f2 = *file2;
1325 if (!f1->basename && !f2->basename)
1331 if (f1->dirname == f2->dirname)
1332 return u_strcmp(f1->basename, f2->basename);
1333 return f_name_cmp(f1, f2);
1337 int flist_find(struct file_list *flist, struct file_struct *f)
1339 int low = 0, high = flist->count - 1;
1341 while (high >= 0 && !flist->files[high]->basename) high--;
1346 while (low != high) {
1347 int mid = (low + high) / 2;
1348 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1350 return flist_up(flist, mid);
1357 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1358 return flist_up(flist, low);
1363 * Free up any resources a file_struct has allocated
1364 * and clear the file.
1366 void clear_file(int i, struct file_list *flist)
1368 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1369 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1370 memset(flist->files[i], 0, file_struct_len);
1375 * allocate a new file list
1377 struct file_list *flist_new(int with_hlink, char *msg)
1379 struct file_list *flist;
1381 flist = new(struct file_list);
1385 memset(flist, 0, sizeof (struct file_list));
1387 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1388 out_of_memory, POOL_INTERN)))
1391 #if SUPPORT_HARD_LINKS
1392 if (with_hlink && preserve_hard_links) {
1393 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1394 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1403 * free up all elements in a flist
1405 void flist_free(struct file_list *flist)
1407 pool_destroy(flist->file_pool);
1408 pool_destroy(flist->hlink_pool);
1415 * This routine ensures we don't have any duplicate names in our file list.
1416 * duplicate names can cause corruption because of the pipelining
1418 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1422 if (!flist || flist->count == 0)
1425 qsort(flist->files, flist->count,
1426 sizeof flist->files[0], (int (*)())file_compare);
1428 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1429 if (flist->files[i]->basename) {
1434 while (++i < flist->count) {
1435 if (!flist->files[i]->basename)
1437 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1438 if (verbose > 1 && !am_server) {
1440 "removing duplicate name %s from file list %d\n",
1441 f_name(flist->files[i]), i);
1443 /* Make sure that if we unduplicate '.', that we don't
1444 * lose track of a user-specified starting point (or
1445 * else deletions will mysteriously fail with -R). */
1446 if (flist->files[i]->flags & FLAG_TOP_DIR)
1447 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1449 clear_file(i, flist);
1455 /* we need to strip off the root directory in the case
1456 of relative paths, but this must be done _after_
1457 the sorting phase */
1458 for (i = 0; i < flist->count; i++) {
1459 if (flist->files[i]->dirname &&
1460 flist->files[i]->dirname[0] == '/') {
1461 memmove(&flist->files[i]->dirname[0],
1462 &flist->files[i]->dirname[1],
1463 strlen(flist->files[i]->dirname));
1466 if (flist->files[i]->dirname &&
1467 !flist->files[i]->dirname[0]) {
1468 flist->files[i]->dirname = NULL;
1474 static void output_flist(struct file_list *flist)
1476 char uidbuf[16], gidbuf[16];
1477 struct file_struct *file;
1480 for (i = 0; i < flist->count; i++) {
1481 file = flist->files[i];
1482 if (am_root && preserve_uid)
1483 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1486 if (preserve_gid && file->gid != GID_NONE)
1487 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1490 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1491 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1492 NS(file->basename), (int)file->mode,
1493 (double)file->length, uidbuf, gidbuf);
1498 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1500 /* Compare the names of two file_struct entities, just like strcmp()
1501 * would do if it were operating on the joined strings. We assume
1502 * that there are no 0-length strings.
1504 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1507 const uchar *c1, *c2;
1508 enum fnc_state state1, state2;
1510 if (!f1 || !f1->basename) {
1511 if (!f2 || !f2->basename)
1515 if (!f2 || !f2->basename)
1518 if (!(c1 = (uchar*)f1->dirname)) {
1520 c1 = (uchar*)f1->basename;
1526 if (!(c2 = (uchar*)f2->dirname)) {
1528 c2 = (uchar*)f2->basename;
1536 if ((dif = (int)*c1 - (int)*c2) != 0)
1546 c1 = (uchar*)f1->basename;
1560 c2 = (uchar*)f2->basename;
1574 /* Return a copy of the full filename of a flist entry, using the indicated
1575 * buffer. No size-checking is done because we checked the size when creating
1576 * the file_struct entry.
1578 char *f_name_to(struct file_struct *f, char *fbuf)
1580 if (!f || !f->basename)
1584 int len = strlen(f->dirname);
1585 memcpy(fbuf, f->dirname, len);
1587 strcpy(fbuf + len + 1, f->basename);
1589 strcpy(fbuf, f->basename);
1594 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1596 char *f_name(struct file_struct *f)
1598 static char names[5][MAXPATHLEN];
1599 static unsigned int n;
1601 n = (n + 1) % (sizeof names / sizeof names[0]);
1603 return f_name_to(f, names[n]);