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;
269 return (mode_t) mode;
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)
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;
305 new_ptr = realloc_array(flist->files,
306 struct file_struct *, flist->malloced);
308 new_ptr = new_array(struct file_struct *, flist->malloced);
312 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
314 (double) sizeof flist->files[0] * flist->malloced,
315 (new_ptr == flist->files) ? " not" : "");
318 flist->files = (struct file_struct **) new_ptr;
321 out_of_memory("flist_expand");
324 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
326 unsigned short flags;
327 static time_t modtime;
331 static uint32 rdev_major;
334 static char lastname[MAXPATHLEN];
335 char *fname, fbuf[MAXPATHLEN];
343 modtime = 0, mode = 0;
344 dev = 0, rdev = makedev(0, 0);
351 io_write_phase = "send_file_entry";
353 fname = f_name_to(file, fbuf);
357 if (file->mode == mode)
358 flags |= XMIT_SAME_MODE;
361 if (preserve_devices) {
362 if (protocol_version < 28) {
363 if (IS_DEVICE(mode)) {
364 if (file->u.rdev == rdev)
365 flags |= XMIT_SAME_RDEV_pre28;
369 rdev = makedev(0, 0);
370 } else if (IS_DEVICE(mode)) {
372 if ((uint32)major(rdev) == rdev_major)
373 flags |= XMIT_SAME_RDEV_MAJOR;
375 rdev_major = major(rdev);
376 if ((uint32)minor(rdev) <= 0xFFu)
377 flags |= XMIT_RDEV_MINOR_IS_SMALL;
380 if (file->uid == uid)
381 flags |= XMIT_SAME_UID;
384 if (file->gid == gid)
385 flags |= XMIT_SAME_GID;
388 if (file->modtime == modtime)
389 flags |= XMIT_SAME_TIME;
391 modtime = file->modtime;
393 #if SUPPORT_HARD_LINKS
394 if (file->link_u.idev) {
395 if (file->F_DEV == dev) {
396 if (protocol_version >= 28)
397 flags |= XMIT_SAME_DEV;
400 flags |= XMIT_HAS_IDEV_DATA;
405 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
407 l2 = strlen(fname+l1);
410 flags |= XMIT_SAME_NAME;
412 flags |= XMIT_LONG_NAME;
414 /* We must make sure we don't send a zero flag byte or the
415 * other end will terminate the flist transfer. Note that
416 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
417 * it's harmless way to add a bit to the first flag byte. */
418 if (protocol_version >= 28) {
419 if (!flags && !S_ISDIR(mode))
420 flags |= XMIT_TOP_DIR;
421 if ((flags & 0xFF00) || !flags) {
422 flags |= XMIT_EXTENDED_FLAGS;
423 write_byte(f, flags);
424 write_byte(f, flags >> 8);
426 write_byte(f, flags);
428 if (!(flags & 0xFF) && !S_ISDIR(mode))
429 flags |= XMIT_TOP_DIR;
431 flags |= XMIT_LONG_NAME;
432 write_byte(f, flags);
434 if (flags & XMIT_SAME_NAME)
436 if (flags & XMIT_LONG_NAME)
440 write_buf(f, fname + l1, l2);
442 write_longint(f, file->length);
443 if (!(flags & XMIT_SAME_TIME))
444 write_int(f, modtime);
445 if (!(flags & XMIT_SAME_MODE))
446 write_int(f, to_wire_mode(mode));
447 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
452 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
457 if (preserve_devices && IS_DEVICE(mode)) {
458 if (protocol_version < 28) {
459 if (!(flags & XMIT_SAME_RDEV_pre28))
460 write_int(f, (int)rdev);
462 if (!(flags & XMIT_SAME_RDEV_MAJOR))
463 write_int(f, major(rdev));
464 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
465 write_byte(f, minor(rdev));
467 write_int(f, minor(rdev));
472 if (preserve_links && S_ISLNK(mode)) {
473 int len = strlen(file->u.link);
475 write_buf(f, file->u.link, len);
479 #if SUPPORT_HARD_LINKS
480 if (flags & XMIT_HAS_IDEV_DATA) {
481 if (protocol_version < 26) {
482 /* 32-bit dev_t and ino_t */
484 write_int(f, file->F_INODE);
486 /* 64-bit dev_t and ino_t */
487 if (!(flags & XMIT_SAME_DEV))
488 write_longint(f, dev);
489 write_longint(f, file->F_INODE);
494 if (always_checksum) {
498 else if (protocol_version < 28) {
499 /* Prior to 28, we sent a useless set of nulls. */
505 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
509 strlcpy(lastname, fname, MAXPATHLEN);
511 io_write_phase = "unknown";
516 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
517 struct file_list *flist, int f)
519 static time_t modtime;
523 static uint32 rdev_major;
526 static char lastname[MAXPATHLEN], *lastdir;
527 static int lastdir_len = -1;
528 char thisname[MAXPATHLEN];
529 unsigned int l1 = 0, l2 = 0;
530 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
532 char *basename, *dirname, *bp;
533 struct file_struct *file;
536 modtime = 0, mode = 0;
537 dev = 0, rdev = makedev(0, 0);
545 if (flags & XMIT_SAME_NAME)
548 if (flags & XMIT_LONG_NAME)
553 if (l2 >= MAXPATHLEN - l1) {
555 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
556 flags, l1, l2, lastname);
557 overflow("receive_file_entry");
560 strlcpy(thisname, lastname, l1 + 1);
561 read_sbuf(f, &thisname[l1], l2);
562 thisname[l1 + l2] = 0;
564 strlcpy(lastname, thisname, MAXPATHLEN);
566 clean_fname(thisname);
569 sanitize_path(thisname, NULL);
571 if ((basename = strrchr(thisname, '/')) != NULL) {
572 dirname_len = ++basename - thisname; /* counts future '\0' */
573 if (lastdir_len == dirname_len - 1
574 && strncmp(thisname, lastdir, lastdir_len) == 0) {
576 dirname_len = 0; /* indicates no copy is needed */
584 basename_len = strlen(basename) + 1; /* count the '\0' */
586 file_length = read_longint(f);
587 if (!(flags & XMIT_SAME_TIME))
588 modtime = (time_t)read_int(f);
589 if (!(flags & XMIT_SAME_MODE))
590 mode = from_wire_mode(read_int(f));
592 if (preserve_uid && !(flags & XMIT_SAME_UID))
593 uid = (uid_t)read_int(f);
594 if (preserve_gid && !(flags & XMIT_SAME_GID))
595 gid = (gid_t)read_int(f);
597 if (preserve_devices) {
598 if (protocol_version < 28) {
599 if (IS_DEVICE(mode)) {
600 if (!(flags & XMIT_SAME_RDEV_pre28))
601 rdev = (dev_t)read_int(f);
603 rdev = makedev(0, 0);
604 } else if (IS_DEVICE(mode)) {
606 if (!(flags & XMIT_SAME_RDEV_MAJOR))
607 rdev_major = read_int(f);
608 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
609 rdev_minor = read_byte(f);
611 rdev_minor = read_int(f);
612 rdev = makedev(rdev_major, rdev_minor);
617 if (preserve_links && S_ISLNK(mode)) {
618 linkname_len = read_int(f) + 1; /* count the '\0' */
619 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
620 rprintf(FERROR, "overflow: linkname_len=%d\n",
622 overflow("receive_file_entry");
629 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
631 alloc_len = file_struct_len + dirname_len + basename_len
632 + linkname_len + sum_len;
633 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
635 file = *fptr = (struct file_struct *)bp;
636 memset(bp, 0, file_struct_len);
637 bp += file_struct_len;
639 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
640 file->modtime = modtime;
641 file->length = file_length;
647 file->dirname = lastdir = bp;
648 lastdir_len = dirname_len - 1;
649 memcpy(bp, dirname, dirname_len - 1);
653 file->dirname = dirname;
656 memcpy(bp, basename, basename_len);
659 if (preserve_devices && IS_DEVICE(mode))
665 read_sbuf(f, bp, linkname_len - 1);
667 sanitize_path(bp, lastdir);
672 #if SUPPORT_HARD_LINKS
673 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
674 flags |= XMIT_HAS_IDEV_DATA;
675 if (flags & XMIT_HAS_IDEV_DATA) {
677 if (protocol_version < 26) {
681 if (!(flags & XMIT_SAME_DEV))
682 dev = read_longint(f);
683 inode = read_longint(f);
685 if (flist->hlink_pool) {
686 file->link_u.idev = pool_talloc(flist->hlink_pool,
687 struct idev, 1, "inode_table");
688 file->F_INODE = inode;
694 if (always_checksum) {
697 file->u.sum = sum = bp;
699 } else if (protocol_version < 28) {
700 /* Prior to 28, we get a useless set of nulls. */
706 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
710 if (!preserve_perms) {
711 extern int orig_umask;
712 /* set an appropriate set of permissions based on original
713 * permissions and umask. This emulates what GNU cp does */
714 file->mode &= ~orig_umask;
720 * Create a file_struct for a named file by reading its stat()
721 * information and performing extensive checks against global
724 * @return the new file, or NULL if there was an error or this file
725 * should be excluded.
727 * @todo There is a small optimization opportunity here to avoid
728 * stat()ing the file in some circumstances, which has a certain cost.
729 * We are called immediately after doing readdir(), and so we may
730 * already know the d_type of the file. We could for example avoid
731 * statting directories if we're not recursing, but this is not a very
732 * important case. Some systems may not have d_type.
734 struct file_struct *make_file(char *fname,
735 struct file_list *flist, int exclude_level)
737 static char *lastdir;
738 static int lastdir_len = -1;
739 struct file_struct *file;
741 char sum[SUM_LENGTH];
742 char thisname[MAXPATHLEN];
743 char linkname[MAXPATHLEN];
744 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
745 char *basename, *dirname, *bp;
746 unsigned short flags = 0;
748 if (!flist || !flist->count) /* Ignore lastdir when invalid. */
751 if (strlcpy(thisname, fname, sizeof thisname)
752 >= sizeof thisname - flist_dir_len) {
753 rprintf(FINFO, "skipping overly long name: %s\n", fname);
756 clean_fname(thisname);
758 sanitize_path(thisname, NULL);
760 memset(sum, 0, SUM_LENGTH);
762 if (readlink_stat(thisname, &st, linkname) != 0) {
763 int save_errno = errno;
764 if (errno == ENOENT) {
765 enum logcode c = am_daemon && protocol_version < 28
767 /* either symlink pointing nowhere or file that
768 * was removed during rsync run; see if excluded
769 * before reporting an error */
770 if (exclude_level != NO_EXCLUDES
771 && check_exclude_file(thisname, 0, exclude_level)) {
772 /* file is excluded anyway, ignore silently */
775 io_error |= IOERR_VANISHED;
776 rprintf(c, "file has vanished: %s\n",
777 full_fname(thisname));
780 io_error |= IOERR_GENERAL;
781 rsyserr(FERROR, save_errno, "readlink %s failed",
782 full_fname(thisname));
787 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
788 if (exclude_level == NO_EXCLUDES)
791 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
792 rprintf(FINFO, "skipping directory %s\n", thisname);
796 /* We only care about directories because we need to avoid recursing
797 * into a mount-point directory, not to avoid copying a symlinked
798 * file if -L (or similar) was specified. */
799 if (one_file_system && st.st_dev != filesystem_dev
800 && S_ISDIR(st.st_mode))
801 flags |= FLAG_MOUNT_POINT;
803 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
806 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
812 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
813 who_am_i(), thisname, exclude_level);
816 if ((basename = strrchr(thisname, '/')) != NULL) {
817 dirname_len = ++basename - thisname; /* counts future '\0' */
818 if (lastdir_len == dirname_len - 1
819 && strncmp(thisname, lastdir, lastdir_len) == 0) {
821 dirname_len = 0; /* indicates no copy is needed */
829 basename_len = strlen(basename) + 1; /* count the '\0' */
832 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
837 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
839 alloc_len = file_struct_len + dirname_len + basename_len
840 + linkname_len + sum_len;
842 bp = pool_alloc(flist->file_pool, alloc_len,
843 "receive_file_entry");
845 if (!(bp = new_array(char, alloc_len)))
846 out_of_memory("receive_file_entry");
849 file = (struct file_struct *)bp;
850 memset(bp, 0, file_struct_len);
851 bp += file_struct_len;
854 file->modtime = st.st_mtime;
855 file->length = st.st_size;
856 file->mode = st.st_mode;
857 file->uid = st.st_uid;
858 file->gid = st.st_gid;
860 #if SUPPORT_HARD_LINKS
861 if (flist && flist->hlink_pool) {
862 if (protocol_version < 28) {
863 if (S_ISREG(st.st_mode))
864 file->link_u.idev = pool_talloc(
865 flist->hlink_pool, struct idev, 1,
868 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
869 file->link_u.idev = pool_talloc(
870 flist->hlink_pool, struct idev, 1,
874 if (file->link_u.idev) {
875 file->F_DEV = st.st_dev;
876 file->F_INODE = st.st_ino;
881 file->dirname = lastdir = bp;
882 lastdir_len = dirname_len - 1;
883 memcpy(bp, dirname, dirname_len - 1);
887 file->dirname = dirname;
890 memcpy(bp, basename, basename_len);
893 #ifdef HAVE_STRUCT_STAT_ST_RDEV
894 if (preserve_devices && IS_DEVICE(st.st_mode))
895 file->u.rdev = st.st_rdev;
901 memcpy(bp, linkname, linkname_len);
908 file_checksum(thisname, bp, st.st_size);
912 file->basedir = flist_dir;
914 if (!S_ISDIR(st.st_mode))
915 stats.total_size += st.st_size;
921 void send_file_name(int f, struct file_list *flist, char *fname,
922 int recursive, unsigned short base_flags)
924 struct file_struct *file;
925 char fbuf[MAXPATHLEN];
926 extern int delete_excluded;
928 /* f is set to -1 when calculating deletion file list */
929 file = make_file(fname, flist,
930 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
935 maybe_emit_filelist_progress(flist);
940 file->flags |= FLAG_TOP_DIR;
942 if (file->basename[0]) {
943 flist->files[flist->count++] = file;
944 send_file_entry(file, f, base_flags);
947 if (recursive && S_ISDIR(file->mode)
948 && !(file->flags & FLAG_MOUNT_POINT)) {
949 struct exclude_list_struct last_list = local_exclude_list;
950 local_exclude_list.head = local_exclude_list.tail = NULL;
951 send_directory(f, flist, f_name_to(file, fbuf));
953 rprintf(FINFO, "[%s] popping %sexclude list\n",
954 who_am_i(), local_exclude_list.debug_type);
956 free_exclude_list(&local_exclude_list);
957 local_exclude_list = last_list;
962 static void send_directory(int f, struct file_list *flist, char *dir)
966 char fname[MAXPATHLEN];
972 io_error |= IOERR_GENERAL;
973 rsyserr(FERROR, errno, "opendir %s failed", full_fname(dir));
977 offset = strlcpy(fname, dir, MAXPATHLEN);
979 if (offset >= MAXPATHLEN || p[-1] != '/') {
980 if (offset >= MAXPATHLEN - 1) {
981 io_error |= IOERR_GENERAL;
982 rprintf(FERROR, "skipping long-named directory: %s\n",
992 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
993 < MAXPATHLEN - offset) {
994 add_exclude_file(&local_exclude_list, fname,
995 XFLG_WORD_SPLIT | XFLG_WORDS_ONLY);
997 io_error |= IOERR_GENERAL;
999 "cannot cvs-exclude in long-named directory %s\n",
1004 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1005 char *dname = d_name(di);
1006 if (dname[0] == '.' && (dname[1] == '\0'
1007 || (dname[1] == '.' && dname[2] == '\0')))
1009 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
1010 send_file_name(f, flist, fname, recurse, 0);
1012 io_error |= IOERR_GENERAL;
1014 "cannot send long-named file %s\n",
1019 io_error |= IOERR_GENERAL;
1020 rsyserr(FERROR, errno, "readdir(%s)", dir);
1028 * The delete_files() function in receiver.c sets f to -1 so that we just
1029 * construct the file list in memory without sending it over the wire. It
1030 * also has the side-effect of ignoring user-excludes if delete_excluded
1031 * is set (so that the delete list includes user-excluded files).
1033 struct file_list *send_file_list(int f, int argc, char *argv[])
1037 char *p, *dir, olddir[sizeof curr_dir];
1038 char lastpath[MAXPATHLEN] = "";
1039 struct file_list *flist;
1043 if (show_filelist_p() && f != -1)
1044 start_filelist_progress("building file list");
1046 start_write = stats.total_written;
1048 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1052 io_start_buffering_out(f);
1053 if (filesfrom_fd >= 0) {
1054 if (argv[0] && !push_dir(argv[0])) {
1055 rsyserr(FERROR, errno, "push_dir %s failed",
1056 full_fname(argv[0]));
1057 exit_cleanup(RERR_FILESELECT);
1064 char fname2[MAXPATHLEN];
1065 char *fname = fname2;
1068 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1070 sanitize_path(fname, NULL);
1074 strlcpy(fname, *argv++, MAXPATHLEN);
1076 sanitize_path(fname, NULL);
1080 if (fname[l - 1] == '/') {
1081 if (l == 2 && fname[0] == '.') {
1082 /* Turn "./" into just "." rather than "./." */
1084 } else if (l < MAXPATHLEN) {
1090 if (link_stat(fname, &st) != 0) {
1092 io_error |= IOERR_GENERAL;
1093 rsyserr(FERROR, errno, "link_stat %s failed",
1099 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1100 rprintf(FINFO, "skipping directory %s\n", fname);
1107 if (!relative_paths) {
1108 p = strrchr(fname, '/');
1117 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1118 /* this ensures we send the intermediate directories,
1119 thus getting their permissions right */
1120 char *lp = lastpath, *fn = fname, *slash = fname;
1122 /* Skip any initial directories in our path that we
1123 * have in common with lastpath. */
1124 while (*fn && *lp == *fn) {
1130 if (fn != p || (*lp && *lp != '/')) {
1131 int copy_links_saved = copy_links;
1132 int recurse_saved = recurse;
1133 copy_links = copy_unsafe_links;
1134 /* set recurse to 1 to prevent make_file
1135 * from ignoring directory, but still
1136 * turn off the recursive parameter to
1139 while ((slash = strchr(slash+1, '/')) != 0) {
1141 send_file_name(f, flist, fname, 0, 0);
1144 copy_links = copy_links_saved;
1145 recurse = recurse_saved;
1147 strlcpy(lastpath, fname, sizeof lastpath);
1156 static char *lastdir;
1157 static int lastdir_len;
1159 strcpy(olddir, curr_dir); /* can't overflow */
1161 if (!push_dir(dir)) {
1162 io_error |= IOERR_GENERAL;
1163 rsyserr(FERROR, errno, "push_dir %s failed",
1168 if (lastdir && strcmp(lastdir, dir) == 0) {
1169 flist_dir = lastdir;
1170 flist_dir_len = lastdir_len;
1172 flist_dir = lastdir = strdup(dir);
1173 flist_dir_len = lastdir_len = strlen(dir);
1177 if (one_file_system)
1178 set_filesystem(fname);
1180 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1185 if (!pop_dir(olddir)) {
1186 rsyserr(FERROR, errno, "pop_dir %s failed",
1188 exit_cleanup(RERR_FILESELECT);
1194 send_file_entry(NULL, f, 0);
1196 if (show_filelist_p())
1197 finish_filelist_progress(flist);
1200 if (flist->hlink_pool) {
1201 pool_destroy(flist->hlink_pool);
1202 flist->hlink_pool = NULL;
1205 clean_flist(flist, 0, 0);
1208 /* Now send the uid/gid list. This was introduced in
1209 * protocol version 15 */
1212 /* send the io_error flag */
1213 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1216 stats.flist_size = stats.total_written - start_write;
1217 stats.num_files = flist->count;
1219 write_batch_flist_info(flist->count, flist->files);
1223 output_flist(flist);
1226 rprintf(FINFO, "send_file_list done\n");
1232 struct file_list *recv_file_list(int f)
1234 struct file_list *flist;
1235 unsigned short flags;
1237 extern int list_only;
1239 if (show_filelist_p())
1240 start_filelist_progress("receiving file list");
1242 start_read = stats.total_read;
1244 flist = flist_new(WITH_HLINK, "recv_file_list");
1247 flist->malloced = 1000;
1248 flist->files = new_array(struct file_struct *, flist->malloced);
1253 while ((flags = read_byte(f)) != 0) {
1254 int i = flist->count;
1256 flist_expand(flist);
1258 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1259 flags |= read_byte(f) << 8;
1260 receive_file_entry(&flist->files[i], flags, flist, f);
1262 if (S_ISREG(flist->files[i]->mode))
1263 stats.total_size += flist->files[i]->length;
1267 maybe_emit_filelist_progress(flist);
1270 rprintf(FINFO, "recv_file_name(%s)\n",
1271 f_name(flist->files[i]));
1274 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1277 rprintf(FINFO, "received %d names\n", flist->count);
1279 if (show_filelist_p())
1280 finish_filelist_progress(flist);
1282 clean_flist(flist, relative_paths, 1);
1285 /* Now send the uid/gid list. This was introduced in
1286 * protocol version 15 */
1287 recv_uid_list(f, flist);
1290 /* Recv the io_error flag */
1291 if (lp_ignore_errors(module_id) || ignore_errors)
1294 io_error |= read_int(f);
1299 output_flist(flist);
1303 for (i = 0; i < flist->count; i++)
1304 list_file_entry(flist->files[i]);
1308 rprintf(FINFO, "recv_file_list done\n");
1310 stats.flist_size = stats.total_read - start_read;
1311 stats.num_files = flist->count;
1316 out_of_memory("recv_file_list");
1317 return NULL; /* not reached */
1321 int file_compare(struct file_struct **file1, struct file_struct **file2)
1323 struct file_struct *f1 = *file1;
1324 struct file_struct *f2 = *file2;
1326 if (!f1->basename && !f2->basename)
1332 if (f1->dirname == f2->dirname)
1333 return u_strcmp(f1->basename, f2->basename);
1334 return f_name_cmp(f1, f2);
1338 int flist_find(struct file_list *flist, struct file_struct *f)
1340 int low = 0, high = flist->count - 1;
1342 while (high >= 0 && !flist->files[high]->basename) high--;
1347 while (low != high) {
1348 int mid = (low + high) / 2;
1349 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1351 return flist_up(flist, mid);
1358 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1359 return flist_up(flist, low);
1364 * Free up any resources a file_struct has allocated
1365 * and clear the file.
1367 void clear_file(int i, struct file_list *flist)
1369 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1370 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1371 memset(flist->files[i], 0, file_struct_len);
1376 * allocate a new file list
1378 struct file_list *flist_new(int with_hlink, char *msg)
1380 struct file_list *flist;
1382 flist = new(struct file_list);
1386 memset(flist, 0, sizeof (struct file_list));
1388 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1389 out_of_memory, POOL_INTERN)))
1392 #if SUPPORT_HARD_LINKS
1393 if (with_hlink && preserve_hard_links) {
1394 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1395 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1404 * free up all elements in a flist
1406 void flist_free(struct file_list *flist)
1408 pool_destroy(flist->file_pool);
1409 pool_destroy(flist->hlink_pool);
1416 * This routine ensures we don't have any duplicate names in our file list.
1417 * duplicate names can cause corruption because of the pipelining
1419 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1423 if (!flist || flist->count == 0)
1426 qsort(flist->files, flist->count,
1427 sizeof flist->files[0], (int (*)()) file_compare);
1429 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1430 if (flist->files[i]->basename) {
1435 while (++i < flist->count) {
1436 if (!flist->files[i]->basename)
1438 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1439 if (verbose > 1 && !am_server) {
1441 "removing duplicate name %s from file list %d\n",
1442 f_name(flist->files[i]), i);
1444 /* Make sure that if we unduplicate '.', that we don't
1445 * lose track of a user-specified starting point (or
1446 * else deletions will mysteriously fail with -R). */
1447 if (flist->files[i]->flags & FLAG_TOP_DIR)
1448 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1450 clear_file(i, flist);
1456 /* we need to strip off the root directory in the case
1457 of relative paths, but this must be done _after_
1458 the sorting phase */
1459 for (i = 0; i < flist->count; i++) {
1460 if (flist->files[i]->dirname &&
1461 flist->files[i]->dirname[0] == '/') {
1462 memmove(&flist->files[i]->dirname[0],
1463 &flist->files[i]->dirname[1],
1464 strlen(flist->files[i]->dirname));
1467 if (flist->files[i]->dirname &&
1468 !flist->files[i]->dirname[0]) {
1469 flist->files[i]->dirname = NULL;
1475 static void output_flist(struct file_list *flist)
1477 char uidbuf[16], gidbuf[16];
1478 struct file_struct *file;
1481 for (i = 0; i < flist->count; i++) {
1482 file = flist->files[i];
1483 if (am_root && preserve_uid)
1484 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1487 if (preserve_gid && file->gid != GID_NONE)
1488 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1491 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1492 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1493 NS(file->basename), (int) file->mode,
1494 (double) file->length, uidbuf, gidbuf);
1499 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1501 /* Compare the names of two file_struct entities, just like strcmp()
1502 * would do if it were operating on the joined strings. We assume
1503 * that there are no 0-length strings.
1505 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1508 const uchar *c1, *c2;
1509 enum fnc_state state1, state2;
1511 if (!f1 || !f1->basename) {
1512 if (!f2 || !f2->basename)
1516 if (!f2 || !f2->basename)
1519 if (!(c1 = (uchar*)f1->dirname)) {
1521 c1 = (uchar*)f1->basename;
1527 if (!(c2 = (uchar*)f2->dirname)) {
1529 c2 = (uchar*)f2->basename;
1537 if ((dif = (int)*c1 - (int)*c2) != 0)
1547 c1 = (uchar*)f1->basename;
1561 c2 = (uchar*)f2->basename;
1575 /* Return a copy of the full filename of a flist entry, using the indicated
1576 * buffer. No size-checking is done because we checked the size when creating
1577 * the file_struct entry.
1579 char *f_name_to(struct file_struct *f, char *fbuf)
1581 if (!f || !f->basename)
1585 int len = strlen(f->dirname);
1586 memcpy(fbuf, f->dirname, len);
1588 strcpy(fbuf + len + 1, f->basename);
1590 strcpy(fbuf, f->basename);
1595 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1597 char *f_name(struct file_struct *f)
1599 static char names[5][MAXPATHLEN];
1600 static unsigned int n;
1602 n = (n + 1) % (sizeof names / sizeof names[0]);
1604 return f_name_to(f, names[n]);