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 keep_dirlinks;
51 extern int preserve_links;
52 extern int preserve_hard_links;
53 extern int preserve_perms;
54 extern int preserve_devices;
55 extern int preserve_uid;
56 extern int preserve_gid;
57 extern int relative_paths;
58 extern int implied_dirs;
59 extern int copy_links;
60 extern int copy_unsafe_links;
61 extern int protocol_version;
62 extern int sanitize_paths;
63 extern int delete_excluded;
64 extern int orig_umask;
67 extern int read_batch;
68 extern int write_batch;
70 extern struct exclude_list_struct exclude_list;
71 extern struct exclude_list_struct server_exclude_list;
72 extern struct exclude_list_struct local_exclude_list;
76 static char empty_sum[MD4_SUM_LENGTH];
77 static unsigned int file_struct_len;
79 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
80 static void output_flist(struct file_list *flist);
86 /* Figure out how big the file_struct is without trailing padding */
87 file_struct_len = offsetof(struct file_struct, flags) + sizeof f.flags;
91 static int show_filelist_p(void)
93 return verbose && (recurse || files_from) && !am_server;
96 static void start_filelist_progress(char *kind)
98 rprintf(FINFO, "%s ... ", kind);
99 if (verbose > 1 || do_progress)
100 rprintf(FINFO, "\n");
105 static void emit_filelist_progress(const struct file_list *flist)
107 rprintf(FINFO, " %d files...\r", flist->count);
111 static void maybe_emit_filelist_progress(const struct file_list *flist)
113 if (do_progress && show_filelist_p() && (flist->count % 100) == 0)
114 emit_filelist_progress(flist);
118 static void finish_filelist_progress(const struct file_list *flist)
121 /* This overwrites the progress line */
122 rprintf(FINFO, "%d file%sto consider\n",
123 flist->count, flist->count == 1 ? " " : "s ");
125 rprintf(FINFO, "done\n");
128 void show_flist_stats(void)
134 static void list_file_entry(struct file_struct *f)
139 /* this can happen if duplicate names were removed */
143 permstring(perms, f->mode);
146 if (preserve_links && S_ISLNK(f->mode)) {
147 rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
149 (double)f->length, timestring(f->modtime),
150 f_name(f), f->u.link);
154 rprintf(FINFO, "%s %11.0f %s %s\n",
156 (double)f->length, timestring(f->modtime),
163 * Stat either a symlink or its referent, depending on the settings of
164 * copy_links, copy_unsafe_links, etc.
166 * @retval -1 on error
168 * @retval 0 for success
170 * @post If @p path is a symlink, then @p linkbuf (of size @c
171 * MAXPATHLEN) contains the symlink target.
173 * @post @p buffer contains information about the link or the
174 * referrent as appropriate, if they exist.
176 int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf)
180 return do_stat(path, buffer);
181 if (link_stat(path, buffer, keep_dirlinks) < 0)
183 if (S_ISLNK(buffer->st_mode)) {
184 int l = readlink((char *)path, linkbuf, MAXPATHLEN - 1);
188 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
190 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
193 return do_stat(path, buffer);
198 return do_stat(path, buffer);
202 int link_stat(const char *path, STRUCT_STAT *buffer, int follow_dirlinks)
206 return do_stat(path, buffer);
207 if (do_lstat(path, buffer) < 0)
209 if (follow_dirlinks && S_ISLNK(buffer->st_mode)) {
211 if (do_stat(path, &st) == 0 && S_ISDIR(st.st_mode))
216 return do_stat(path, buffer);
221 * This function is used to check if a file should be included/excluded
222 * from the list of files based on its name and type etc. The value of
223 * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
225 static int check_exclude_file(char *fname, int is_dir, int exclude_level)
229 #if 0 /* This currently never happens, so avoid a useless compare. */
230 if (exclude_level == NO_EXCLUDES)
234 /* never exclude '.', even if somebody does --exclude '*' */
235 if (fname[0] == '.' && !fname[1])
237 /* Handle the -R version of the '.' dir. */
238 if (fname[0] == '/') {
239 int len = strlen(fname);
240 if (fname[len-1] == '.' && fname[len-2] == '/')
244 if (server_exclude_list.head
245 && check_exclude(&server_exclude_list, fname, is_dir) < 0)
247 if (exclude_level != ALL_EXCLUDES)
249 if (exclude_list.head
250 && (rc = check_exclude(&exclude_list, fname, is_dir)) != 0)
252 if (local_exclude_list.head
253 && check_exclude(&local_exclude_list, fname, is_dir) < 0)
258 /* used by the one_file_system code */
259 static dev_t filesystem_dev;
261 static void set_filesystem(char *fname)
264 if (do_stat(fname, &st) != 0)
266 filesystem_dev = st.st_dev;
270 static int to_wire_mode(mode_t mode)
273 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
274 return (mode & ~(_S_IFMT)) | 0120000;
279 static mode_t from_wire_mode(int mode)
281 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
282 return (mode & ~(_S_IFMT)) | _S_IFLNK;
287 static void send_directory(int f, struct file_list *flist, char *dir);
289 static char *flist_dir;
290 static int flist_dir_len;
294 * Make sure @p flist is big enough to hold at least @p flist->count
297 void flist_expand(struct file_list *flist)
299 struct file_struct **new_ptr;
301 if (flist->count < flist->malloced)
304 if (flist->malloced < FLIST_START)
305 flist->malloced = FLIST_START;
306 else if (flist->malloced >= FLIST_LINEAR)
307 flist->malloced += FLIST_LINEAR;
309 flist->malloced *= 2;
312 * In case count jumped or we are starting the list
313 * with a known size just set it.
315 if (flist->malloced < flist->count)
316 flist->malloced = flist->count;
318 new_ptr = realloc_array(flist->files, struct file_struct *,
322 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
324 (double)sizeof flist->files[0] * flist->malloced,
325 (new_ptr == flist->files) ? " not" : "");
328 flist->files = new_ptr;
331 out_of_memory("flist_expand");
334 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
336 unsigned short flags;
337 static time_t modtime;
341 static uint32 rdev_major;
344 static char lastname[MAXPATHLEN];
345 char fname[MAXPATHLEN];
353 modtime = 0, mode = 0;
354 dev = 0, rdev = makedev(0, 0);
361 io_write_phase = "send_file_entry";
363 f_name_to(file, fname);
367 if (file->mode == mode)
368 flags |= XMIT_SAME_MODE;
371 if (preserve_devices) {
372 if (protocol_version < 28) {
373 if (IS_DEVICE(mode)) {
374 if (file->u.rdev == rdev)
375 flags |= XMIT_SAME_RDEV_pre28;
379 rdev = makedev(0, 0);
380 } else if (IS_DEVICE(mode)) {
382 if ((uint32)major(rdev) == rdev_major)
383 flags |= XMIT_SAME_RDEV_MAJOR;
385 rdev_major = major(rdev);
386 if ((uint32)minor(rdev) <= 0xFFu)
387 flags |= XMIT_RDEV_MINOR_IS_SMALL;
390 if (file->uid == uid)
391 flags |= XMIT_SAME_UID;
394 if (file->gid == gid)
395 flags |= XMIT_SAME_GID;
398 if (file->modtime == modtime)
399 flags |= XMIT_SAME_TIME;
401 modtime = file->modtime;
403 #if SUPPORT_HARD_LINKS
404 if (file->link_u.idev) {
405 if (file->F_DEV == dev) {
406 if (protocol_version >= 28)
407 flags |= XMIT_SAME_DEV;
410 flags |= XMIT_HAS_IDEV_DATA;
415 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
417 l2 = strlen(fname+l1);
420 flags |= XMIT_SAME_NAME;
422 flags |= XMIT_LONG_NAME;
424 /* We must make sure we don't send a zero flag byte or the
425 * other end will terminate the flist transfer. Note that
426 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
427 * it's harmless way to add a bit to the first flag byte. */
428 if (protocol_version >= 28) {
429 if (!flags && !S_ISDIR(mode))
430 flags |= XMIT_TOP_DIR;
431 if ((flags & 0xFF00) || !flags) {
432 flags |= XMIT_EXTENDED_FLAGS;
433 write_byte(f, flags);
434 write_byte(f, flags >> 8);
436 write_byte(f, flags);
438 if (!(flags & 0xFF) && !S_ISDIR(mode))
439 flags |= XMIT_TOP_DIR;
441 flags |= XMIT_LONG_NAME;
442 write_byte(f, flags);
444 if (flags & XMIT_SAME_NAME)
446 if (flags & XMIT_LONG_NAME)
450 write_buf(f, fname + l1, l2);
452 write_longint(f, file->length);
453 if (!(flags & XMIT_SAME_TIME))
454 write_int(f, modtime);
455 if (!(flags & XMIT_SAME_MODE))
456 write_int(f, to_wire_mode(mode));
457 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
462 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
467 if (preserve_devices && IS_DEVICE(mode)) {
468 if (protocol_version < 28) {
469 if (!(flags & XMIT_SAME_RDEV_pre28))
470 write_int(f, (int)rdev);
472 if (!(flags & XMIT_SAME_RDEV_MAJOR))
473 write_int(f, major(rdev));
474 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
475 write_byte(f, minor(rdev));
477 write_int(f, minor(rdev));
482 if (preserve_links && S_ISLNK(mode)) {
483 int len = strlen(file->u.link);
485 write_buf(f, file->u.link, len);
489 #if SUPPORT_HARD_LINKS
490 if (flags & XMIT_HAS_IDEV_DATA) {
491 if (protocol_version < 26) {
492 /* 32-bit dev_t and ino_t */
494 write_int(f, file->F_INODE);
496 /* 64-bit dev_t and ino_t */
497 if (!(flags & XMIT_SAME_DEV))
498 write_longint(f, dev);
499 write_longint(f, file->F_INODE);
504 if (always_checksum) {
508 else if (protocol_version < 28) {
509 /* Prior to 28, we sent a useless set of nulls. */
515 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
519 strlcpy(lastname, fname, MAXPATHLEN);
521 io_write_phase = "unknown";
526 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
527 struct file_list *flist, int f)
529 static time_t modtime;
533 static uint32 rdev_major;
536 static char lastname[MAXPATHLEN], *lastdir;
537 static int lastdir_len = -1;
538 char thisname[MAXPATHLEN];
539 unsigned int l1 = 0, l2 = 0;
540 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
542 char *basename, *dirname, *bp;
543 struct file_struct *file;
546 modtime = 0, mode = 0;
547 dev = 0, rdev = makedev(0, 0);
555 if (flags & XMIT_SAME_NAME)
558 if (flags & XMIT_LONG_NAME)
563 if (l2 >= MAXPATHLEN - l1) {
565 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
566 flags, l1, l2, lastname);
567 overflow("receive_file_entry");
570 strlcpy(thisname, lastname, l1 + 1);
571 read_sbuf(f, &thisname[l1], l2);
572 thisname[l1 + l2] = 0;
574 strlcpy(lastname, thisname, MAXPATHLEN);
576 clean_fname(thisname);
579 sanitize_path(thisname, NULL);
581 if ((basename = strrchr(thisname, '/')) != NULL) {
582 dirname_len = ++basename - thisname; /* counts future '\0' */
583 if (lastdir_len == dirname_len - 1
584 && strncmp(thisname, lastdir, lastdir_len) == 0) {
586 dirname_len = 0; /* indicates no copy is needed */
594 basename_len = strlen(basename) + 1; /* count the '\0' */
596 file_length = read_longint(f);
597 if (!(flags & XMIT_SAME_TIME))
598 modtime = (time_t)read_int(f);
599 if (!(flags & XMIT_SAME_MODE))
600 mode = from_wire_mode(read_int(f));
602 if (preserve_uid && !(flags & XMIT_SAME_UID))
603 uid = (uid_t)read_int(f);
604 if (preserve_gid && !(flags & XMIT_SAME_GID))
605 gid = (gid_t)read_int(f);
607 if (preserve_devices) {
608 if (protocol_version < 28) {
609 if (IS_DEVICE(mode)) {
610 if (!(flags & XMIT_SAME_RDEV_pre28))
611 rdev = (dev_t)read_int(f);
613 rdev = makedev(0, 0);
614 } else if (IS_DEVICE(mode)) {
616 if (!(flags & XMIT_SAME_RDEV_MAJOR))
617 rdev_major = read_int(f);
618 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
619 rdev_minor = read_byte(f);
621 rdev_minor = read_int(f);
622 rdev = makedev(rdev_major, rdev_minor);
627 if (preserve_links && S_ISLNK(mode)) {
628 linkname_len = read_int(f) + 1; /* count the '\0' */
629 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
630 rprintf(FERROR, "overflow: linkname_len=%d\n",
632 overflow("receive_file_entry");
639 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
641 alloc_len = file_struct_len + dirname_len + basename_len
642 + linkname_len + sum_len;
643 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
645 file = *fptr = (struct file_struct *)bp;
646 memset(bp, 0, file_struct_len);
647 bp += file_struct_len;
649 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
650 file->modtime = modtime;
651 file->length = file_length;
657 file->dirname = lastdir = bp;
658 lastdir_len = dirname_len - 1;
659 memcpy(bp, dirname, dirname_len - 1);
663 file->dirname = dirname;
666 memcpy(bp, basename, basename_len);
669 if (preserve_devices && IS_DEVICE(mode))
675 read_sbuf(f, bp, linkname_len - 1);
677 sanitize_path(bp, lastdir);
682 #if SUPPORT_HARD_LINKS
683 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
684 flags |= XMIT_HAS_IDEV_DATA;
685 if (flags & XMIT_HAS_IDEV_DATA) {
687 if (protocol_version < 26) {
691 if (!(flags & XMIT_SAME_DEV))
692 dev = read_longint(f);
693 inode = read_longint(f);
695 if (flist->hlink_pool) {
696 file->link_u.idev = pool_talloc(flist->hlink_pool,
697 struct idev, 1, "inode_table");
698 file->F_INODE = inode;
704 if (always_checksum) {
707 file->u.sum = sum = bp;
709 } else if (protocol_version < 28) {
710 /* Prior to 28, we get a useless set of nulls. */
716 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
720 if (!preserve_perms) {
721 /* set an appropriate set of permissions based on original
722 * permissions and umask. This emulates what GNU cp does */
723 file->mode &= ~orig_umask;
729 * Create a file_struct for a named file by reading its stat()
730 * information and performing extensive checks against global
733 * @return the new file, or NULL if there was an error or this file
734 * should be excluded.
736 * @todo There is a small optimization opportunity here to avoid
737 * stat()ing the file in some circumstances, which has a certain cost.
738 * We are called immediately after doing readdir(), and so we may
739 * already know the d_type of the file. We could for example avoid
740 * statting directories if we're not recursing, but this is not a very
741 * important case. Some systems may not have d_type.
743 struct file_struct *make_file(char *fname, struct file_list *flist,
746 static char *lastdir;
747 static int lastdir_len = -1;
748 struct file_struct *file;
750 char sum[SUM_LENGTH];
751 char thisname[MAXPATHLEN];
752 char linkname[MAXPATHLEN];
753 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
754 char *basename, *dirname, *bp;
755 unsigned short flags = 0;
757 if (!flist || !flist->count) /* Ignore lastdir when invalid. */
760 if (strlcpy(thisname, fname, sizeof thisname)
761 >= sizeof thisname - flist_dir_len) {
762 rprintf(FINFO, "skipping overly long name: %s\n", fname);
765 clean_fname(thisname);
767 sanitize_path(thisname, NULL);
769 memset(sum, 0, SUM_LENGTH);
771 if (readlink_stat(thisname, &st, linkname) != 0) {
772 int save_errno = errno;
773 /* See if file is excluded before reporting an error. */
774 if (exclude_level != NO_EXCLUDES
775 && check_exclude_file(thisname, 0, exclude_level))
777 if (save_errno == ENOENT) {
779 /* Avoid "vanished" error if symlink points nowhere. */
780 if (copy_links && do_lstat(thisname, &st) == 0
781 && S_ISLNK(st.st_mode)) {
782 io_error |= IOERR_GENERAL;
783 rprintf(FERROR, "symlink has no referent: %s\n",
784 full_fname(thisname));
788 enum logcode c = am_daemon && protocol_version < 28
790 io_error |= IOERR_VANISHED;
791 rprintf(c, "file has vanished: %s\n",
792 full_fname(thisname));
795 io_error |= IOERR_GENERAL;
796 rsyserr(FERROR, save_errno, "readlink %s failed",
797 full_fname(thisname));
802 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
803 if (exclude_level == NO_EXCLUDES)
806 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
807 rprintf(FINFO, "skipping directory %s\n", thisname);
811 /* We only care about directories because we need to avoid recursing
812 * into a mount-point directory, not to avoid copying a symlinked
813 * file if -L (or similar) was specified. */
814 if (one_file_system && st.st_dev != filesystem_dev
815 && S_ISDIR(st.st_mode))
816 flags |= FLAG_MOUNT_POINT;
818 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
821 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
827 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
828 who_am_i(), thisname, exclude_level);
831 if ((basename = strrchr(thisname, '/')) != NULL) {
832 dirname_len = ++basename - thisname; /* counts future '\0' */
833 if (lastdir_len == dirname_len - 1
834 && strncmp(thisname, lastdir, lastdir_len) == 0) {
836 dirname_len = 0; /* indicates no copy is needed */
844 basename_len = strlen(basename) + 1; /* count the '\0' */
847 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
852 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
854 alloc_len = file_struct_len + dirname_len + basename_len
855 + linkname_len + sum_len;
857 bp = pool_alloc(flist->file_pool, alloc_len,
858 "receive_file_entry");
860 if (!(bp = new_array(char, alloc_len)))
861 out_of_memory("receive_file_entry");
864 file = (struct file_struct *)bp;
865 memset(bp, 0, file_struct_len);
866 bp += file_struct_len;
869 file->modtime = st.st_mtime;
870 file->length = st.st_size;
871 file->mode = st.st_mode;
872 file->uid = st.st_uid;
873 file->gid = st.st_gid;
875 #if SUPPORT_HARD_LINKS
876 if (flist && flist->hlink_pool) {
877 if (protocol_version < 28) {
878 if (S_ISREG(st.st_mode))
879 file->link_u.idev = pool_talloc(
880 flist->hlink_pool, struct idev, 1,
883 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
884 file->link_u.idev = pool_talloc(
885 flist->hlink_pool, struct idev, 1,
889 if (file->link_u.idev) {
890 file->F_DEV = st.st_dev;
891 file->F_INODE = st.st_ino;
896 file->dirname = lastdir = bp;
897 lastdir_len = dirname_len - 1;
898 memcpy(bp, dirname, dirname_len - 1);
902 file->dirname = dirname;
905 memcpy(bp, basename, basename_len);
908 #ifdef HAVE_STRUCT_STAT_ST_RDEV
909 if (preserve_devices && IS_DEVICE(st.st_mode))
910 file->u.rdev = st.st_rdev;
916 memcpy(bp, linkname, linkname_len);
923 file_checksum(thisname, bp, st.st_size);
927 file->basedir = flist_dir;
929 if (!S_ISDIR(st.st_mode))
930 stats.total_size += st.st_size;
936 void send_file_name(int f, struct file_list *flist, char *fname,
937 int recursive, unsigned short base_flags)
939 struct file_struct *file;
940 char fbuf[MAXPATHLEN];
942 /* f is set to -1 when calculating deletion file list */
943 file = make_file(fname, flist,
944 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
949 maybe_emit_filelist_progress(flist);
954 file->flags |= FLAG_TOP_DIR;
956 if (file->basename[0]) {
957 flist->files[flist->count++] = file;
958 send_file_entry(file, f, base_flags);
961 if (recursive && S_ISDIR(file->mode)
962 && !(file->flags & FLAG_MOUNT_POINT)) {
963 struct exclude_list_struct last_list = local_exclude_list;
964 local_exclude_list.head = local_exclude_list.tail = NULL;
965 send_directory(f, flist, f_name_to(file, fbuf));
967 rprintf(FINFO, "[%s] popping %sexclude list\n",
968 who_am_i(), local_exclude_list.debug_type);
970 clear_exclude_list(&local_exclude_list);
971 local_exclude_list = last_list;
976 static void send_directory(int f, struct file_list *flist, char *dir)
980 char fname[MAXPATHLEN];
986 io_error |= IOERR_GENERAL;
987 rsyserr(FERROR, errno, "opendir %s failed", full_fname(dir));
991 offset = strlcpy(fname, dir, MAXPATHLEN);
993 if (offset >= MAXPATHLEN || p[-1] != '/') {
994 if (offset >= MAXPATHLEN - 1) {
995 io_error |= IOERR_GENERAL;
996 rprintf(FERROR, "skipping long-named directory: %s\n",
1006 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
1007 < MAXPATHLEN - offset) {
1008 add_exclude_file(&local_exclude_list, fname,
1009 XFLG_WORD_SPLIT | XFLG_WORDS_ONLY);
1011 io_error |= IOERR_GENERAL;
1013 "cannot cvs-exclude in long-named directory %s\n",
1018 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1019 char *dname = d_name(di);
1020 if (dname[0] == '.' && (dname[1] == '\0'
1021 || (dname[1] == '.' && dname[2] == '\0')))
1023 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
1024 send_file_name(f, flist, fname, recurse, 0);
1026 io_error |= IOERR_GENERAL;
1028 "cannot send long-named file %s\n",
1033 io_error |= IOERR_GENERAL;
1034 rsyserr(FERROR, errno, "readdir(%s)", dir);
1042 * This function is normally called by the sender, but the receiver also
1043 * uses it to construct its own file list if --delete has been specified.
1044 * The delete_files() function in receiver.c sets f to -1 so that we just
1045 * construct the file list in memory without sending it over the wire. It
1046 * also has the side-effect of ignoring user-excludes if delete_excluded
1047 * is set (so that the delete list includes user-excluded files).
1049 struct file_list *send_file_list(int f, int argc, char *argv[])
1053 char *p, *dir, olddir[sizeof curr_dir];
1054 char lastpath[MAXPATHLEN] = "";
1055 struct file_list *flist;
1059 if (show_filelist_p() && f != -1)
1060 start_filelist_progress("building file list");
1062 start_write = stats.total_written;
1064 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1068 io_start_buffering_out(f);
1069 if (filesfrom_fd >= 0) {
1070 if (argv[0] && !push_dir(argv[0])) {
1071 rsyserr(FERROR, errno, "push_dir %s failed",
1072 full_fname(argv[0]));
1073 exit_cleanup(RERR_FILESELECT);
1080 char fname2[MAXPATHLEN];
1081 char *fname = fname2;
1084 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1086 sanitize_path(fname, NULL);
1090 strlcpy(fname, *argv++, MAXPATHLEN);
1092 sanitize_path(fname, NULL);
1096 if (fname[l - 1] == '/') {
1097 if (l == 2 && fname[0] == '.') {
1098 /* Turn "./" into just "." rather than "./." */
1100 } else if (l < MAXPATHLEN) {
1106 if (link_stat(fname, &st, keep_dirlinks) != 0) {
1108 io_error |= IOERR_GENERAL;
1109 rsyserr(FERROR, errno, "link_stat %s failed",
1115 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1116 rprintf(FINFO, "skipping directory %s\n", fname);
1123 if (!relative_paths) {
1124 p = strrchr(fname, '/');
1133 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1134 /* this ensures we send the intermediate directories,
1135 thus getting their permissions right */
1136 char *lp = lastpath, *fn = fname, *slash = fname;
1138 /* Skip any initial directories in our path that we
1139 * have in common with lastpath. */
1140 while (*fn && *lp == *fn) {
1146 if (fn != p || (*lp && *lp != '/')) {
1147 int copy_links_saved = copy_links;
1148 int recurse_saved = recurse;
1149 copy_links = copy_unsafe_links;
1150 /* set recurse to 1 to prevent make_file
1151 * from ignoring directory, but still
1152 * turn off the recursive parameter to
1155 while ((slash = strchr(slash+1, '/')) != 0) {
1157 send_file_name(f, flist, fname, 0, 0);
1160 copy_links = copy_links_saved;
1161 recurse = recurse_saved;
1163 strlcpy(lastpath, fname, sizeof lastpath);
1172 static char *lastdir;
1173 static int lastdir_len;
1175 strcpy(olddir, curr_dir); /* can't overflow */
1177 if (!push_dir(dir)) {
1178 io_error |= IOERR_GENERAL;
1179 rsyserr(FERROR, errno, "push_dir %s failed",
1184 if (lastdir && strcmp(lastdir, dir) == 0) {
1185 flist_dir = lastdir;
1186 flist_dir_len = lastdir_len;
1188 flist_dir = lastdir = strdup(dir);
1189 flist_dir_len = lastdir_len = strlen(dir);
1193 if (one_file_system)
1194 set_filesystem(fname);
1196 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1201 if (!pop_dir(olddir)) {
1202 rsyserr(FERROR, errno, "pop_dir %s failed",
1204 exit_cleanup(RERR_FILESELECT);
1210 send_file_entry(NULL, f, 0);
1212 if (show_filelist_p())
1213 finish_filelist_progress(flist);
1216 if (flist->hlink_pool) {
1217 pool_destroy(flist->hlink_pool);
1218 flist->hlink_pool = NULL;
1221 clean_flist(flist, 0, 0);
1224 /* Now send the uid/gid list. This was introduced in
1225 * protocol version 15 */
1228 /* send the io_error flag */
1229 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1232 stats.flist_size = stats.total_written - start_write;
1233 stats.num_files = flist->count;
1235 write_batch_flist_info(flist->count, flist->files);
1239 output_flist(flist);
1242 rprintf(FINFO, "send_file_list done\n");
1248 struct file_list *recv_file_list(int f)
1250 struct file_list *flist;
1251 unsigned short flags;
1254 if (show_filelist_p())
1255 start_filelist_progress("receiving file list");
1257 start_read = stats.total_read;
1259 flist = flist_new(WITH_HLINK, "recv_file_list");
1262 flist->malloced = 1000;
1263 flist->files = new_array(struct file_struct *, flist->malloced);
1268 while ((flags = read_byte(f)) != 0) {
1269 int i = flist->count;
1271 flist_expand(flist);
1273 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1274 flags |= read_byte(f) << 8;
1275 receive_file_entry(&flist->files[i], flags, flist, f);
1277 if (S_ISREG(flist->files[i]->mode))
1278 stats.total_size += flist->files[i]->length;
1282 maybe_emit_filelist_progress(flist);
1285 rprintf(FINFO, "recv_file_name(%s)\n",
1286 f_name(flist->files[i]));
1289 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1292 rprintf(FINFO, "received %d names\n", flist->count);
1294 if (show_filelist_p())
1295 finish_filelist_progress(flist);
1297 clean_flist(flist, relative_paths, 1);
1300 /* Now send the uid/gid list. This was introduced in
1301 * protocol version 15 */
1302 recv_uid_list(f, flist);
1305 /* Recv the io_error flag */
1306 if (lp_ignore_errors(module_id) || ignore_errors)
1309 io_error |= read_int(f);
1314 output_flist(flist);
1318 for (i = 0; i < flist->count; i++)
1319 list_file_entry(flist->files[i]);
1323 rprintf(FINFO, "recv_file_list done\n");
1325 stats.flist_size = stats.total_read - start_read;
1326 stats.num_files = flist->count;
1331 out_of_memory("recv_file_list");
1332 return NULL; /* not reached */
1336 int file_compare(struct file_struct **file1, struct file_struct **file2)
1338 struct file_struct *f1 = *file1;
1339 struct file_struct *f2 = *file2;
1341 if (!f1->basename && !f2->basename)
1347 if (f1->dirname == f2->dirname)
1348 return u_strcmp(f1->basename, f2->basename);
1349 return f_name_cmp(f1, f2);
1353 int flist_find(struct file_list *flist, struct file_struct *f)
1355 int low = 0, high = flist->count - 1;
1357 while (high >= 0 && !flist->files[high]->basename) high--;
1362 while (low != high) {
1363 int mid = (low + high) / 2;
1364 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1366 return flist_up(flist, mid);
1373 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1374 return flist_up(flist, low);
1379 * Free up any resources a file_struct has allocated
1380 * and clear the file.
1382 void clear_file(int i, struct file_list *flist)
1384 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1385 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1386 memset(flist->files[i], 0, file_struct_len);
1391 * allocate a new file list
1393 struct file_list *flist_new(int with_hlink, char *msg)
1395 struct file_list *flist;
1397 flist = new(struct file_list);
1401 memset(flist, 0, sizeof (struct file_list));
1403 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1404 out_of_memory, POOL_INTERN)))
1407 #if SUPPORT_HARD_LINKS
1408 if (with_hlink && preserve_hard_links) {
1409 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1410 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1419 * free up all elements in a flist
1421 void flist_free(struct file_list *flist)
1423 pool_destroy(flist->file_pool);
1424 pool_destroy(flist->hlink_pool);
1431 * This routine ensures we don't have any duplicate names in our file list.
1432 * duplicate names can cause corruption because of the pipelining
1434 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1438 if (!flist || flist->count == 0)
1441 qsort(flist->files, flist->count,
1442 sizeof flist->files[0], (int (*)())file_compare);
1444 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1445 if (flist->files[i]->basename) {
1450 while (++i < flist->count) {
1451 if (!flist->files[i]->basename)
1453 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1454 if (verbose > 1 && !am_server) {
1456 "removing duplicate name %s from file list %d\n",
1457 f_name(flist->files[i]), i);
1459 /* Make sure that if we unduplicate '.', that we don't
1460 * lose track of a user-specified starting point (or
1461 * else deletions will mysteriously fail with -R). */
1462 if (flist->files[i]->flags & FLAG_TOP_DIR)
1463 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1465 clear_file(i, flist);
1471 /* we need to strip off the root directory in the case
1472 of relative paths, but this must be done _after_
1473 the sorting phase */
1474 for (i = 0; i < flist->count; i++) {
1475 if (flist->files[i]->dirname &&
1476 flist->files[i]->dirname[0] == '/') {
1477 memmove(&flist->files[i]->dirname[0],
1478 &flist->files[i]->dirname[1],
1479 strlen(flist->files[i]->dirname));
1482 if (flist->files[i]->dirname &&
1483 !flist->files[i]->dirname[0]) {
1484 flist->files[i]->dirname = NULL;
1490 static void output_flist(struct file_list *flist)
1492 char uidbuf[16], gidbuf[16];
1493 struct file_struct *file;
1496 for (i = 0; i < flist->count; i++) {
1497 file = flist->files[i];
1498 if (am_root && preserve_uid)
1499 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1502 if (preserve_gid && file->gid != GID_NONE)
1503 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1506 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1507 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1508 NS(file->basename), (int)file->mode,
1509 (double)file->length, uidbuf, gidbuf);
1514 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1516 /* Compare the names of two file_struct entities, just like strcmp()
1517 * would do if it were operating on the joined strings. We assume
1518 * that there are no 0-length strings.
1520 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1523 const uchar *c1, *c2;
1524 enum fnc_state state1, state2;
1526 if (!f1 || !f1->basename) {
1527 if (!f2 || !f2->basename)
1531 if (!f2 || !f2->basename)
1534 if (!(c1 = (uchar*)f1->dirname)) {
1536 c1 = (uchar*)f1->basename;
1542 if (!(c2 = (uchar*)f2->dirname)) {
1544 c2 = (uchar*)f2->basename;
1552 if ((dif = (int)*c1 - (int)*c2) != 0)
1562 c1 = (uchar*)f1->basename;
1576 c2 = (uchar*)f2->basename;
1590 /* Return a copy of the full filename of a flist entry, using the indicated
1591 * buffer. No size-checking is done because we checked the size when creating
1592 * the file_struct entry.
1594 char *f_name_to(struct file_struct *f, char *fbuf)
1596 if (!f || !f->basename)
1600 int len = strlen(f->dirname);
1601 memcpy(fbuf, f->dirname, len);
1603 strcpy(fbuf + len + 1, f->basename);
1605 strcpy(fbuf, f->basename);
1610 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1612 char *f_name(struct file_struct *f)
1614 static char names[5][MAXPATHLEN];
1615 static unsigned int n;
1617 n = (n + 1) % (sizeof names / sizeof names[0]);
1619 return f_name_to(f, names[n]);