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 preserve_times;
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;
64 extern int read_batch;
65 extern int write_batch;
67 extern struct exclude_list_struct exclude_list;
68 extern struct exclude_list_struct server_exclude_list;
69 extern struct exclude_list_struct local_exclude_list;
73 static char empty_sum[MD4_SUM_LENGTH];
74 static unsigned int file_struct_len;
76 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
77 static void output_flist(struct file_list *flist);
83 /* Figure out how big the file_struct is without trailing padding */
84 file_struct_len = offsetof(struct file_struct, flags) + sizeof f.flags;
88 static int show_filelist_p(void)
90 return verbose && (recurse || files_from) && !am_server;
93 static void start_filelist_progress(char *kind)
95 rprintf(FINFO, "%s ... ", kind);
96 if ((verbose > 1) || do_progress)
102 static void emit_filelist_progress(const struct file_list *flist)
104 rprintf(FINFO, " %d files...\r", flist->count);
108 static void maybe_emit_filelist_progress(const struct file_list *flist)
110 if (do_progress && show_filelist_p() && ((flist->count % 100) == 0))
111 emit_filelist_progress(flist);
115 static void finish_filelist_progress(const struct file_list *flist)
118 /* This overwrites the progress line */
119 rprintf(FINFO, "%d file%sto consider\n",
120 flist->count, flist->count == 1 ? " " : "s ");
122 rprintf(FINFO, "done\n");
125 void show_flist_stats(void)
131 static void list_file_entry(struct file_struct *f)
136 /* this can happen if duplicate names were removed */
139 permstring(perms, f->mode);
142 if (preserve_links && S_ISLNK(f->mode)) {
143 rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
145 (double) f->length, timestring(f->modtime),
146 f_name(f), f->u.link);
149 rprintf(FINFO, "%s %11.0f %s %s\n",
151 (double) f->length, timestring(f->modtime),
157 * Stat either a symlink or its referent, depending on the settings of
158 * copy_links, copy_unsafe_links, etc.
160 * @retval -1 on error
162 * @retval 0 for success
164 * @post If @p path is a symlink, then @p linkbuf (of size @c
165 * MAXPATHLEN) contains the symlink target.
167 * @post @p buffer contains information about the link or the
168 * referrent as appropriate, if they exist.
170 int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf)
174 return do_stat(path, buffer);
175 if (do_lstat(path, buffer) == -1)
177 if (S_ISLNK(buffer->st_mode)) {
178 int l = readlink((char *) path, linkbuf, MAXPATHLEN - 1);
182 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
184 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
187 return do_stat(path, buffer);
192 return do_stat(path, buffer);
196 int link_stat(const char *path, STRUCT_STAT * buffer)
200 return do_stat(path, buffer);
201 return do_lstat(path, buffer);
203 return do_stat(path, buffer);
208 * This function is used to check if a file should be included/excluded
209 * from the list of files based on its name and type etc. The value of
210 * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
212 static int check_exclude_file(char *fname, int is_dir, int exclude_level)
214 #if 0 /* This currently never happens, so avoid a useless compare. */
215 if (exclude_level == NO_EXCLUDES)
219 /* never exclude '.', even if somebody does --exclude '*' */
220 if (fname[0] == '.' && !fname[1])
222 /* Handle the -R version of the '.' dir. */
223 if (fname[0] == '/') {
224 int len = strlen(fname);
225 if (fname[len-1] == '.' && fname[len-2] == '/')
229 if (server_exclude_list.head
230 && check_exclude(&server_exclude_list, fname, is_dir))
232 if (exclude_level != ALL_EXCLUDES)
234 if (exclude_list.head && check_exclude(&exclude_list, fname, is_dir))
236 if (local_exclude_list.head
237 && check_exclude(&local_exclude_list, fname, is_dir))
242 /* used by the one_file_system code */
243 static dev_t filesystem_dev;
245 static void set_filesystem(char *fname)
248 if (link_stat(fname, &st) != 0)
250 filesystem_dev = st.st_dev;
254 static int to_wire_mode(mode_t mode)
257 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
258 return (mode & ~(_S_IFMT)) | 0120000;
263 static mode_t from_wire_mode(int mode)
265 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
266 return (mode & ~(_S_IFMT)) | _S_IFLNK;
267 return (mode_t) mode;
271 static void send_directory(int f, struct file_list *flist, char *dir);
273 static char *flist_dir;
274 static int flist_dir_len;
278 * Make sure @p flist is big enough to hold at least @p flist->count
281 void flist_expand(struct file_list *flist)
285 if (flist->count < flist->malloced)
288 if (flist->malloced < FLIST_START)
289 flist->malloced = FLIST_START;
290 else if (flist->malloced >= FLIST_LINEAR)
291 flist->malloced += FLIST_LINEAR;
293 flist->malloced *= 2;
296 * In case count jumped or we are starting the list
297 * with a known size just set it.
299 if (flist->malloced < flist->count)
300 flist->malloced = flist->count;
303 new_ptr = realloc_array(flist->files,
304 struct file_struct *, flist->malloced);
306 new_ptr = new_array(struct file_struct *, flist->malloced);
310 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
312 (double) sizeof flist->files[0] * flist->malloced,
313 (new_ptr == flist->files) ? " not" : "");
316 flist->files = (struct file_struct **) new_ptr;
319 out_of_memory("flist_expand");
322 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
324 unsigned short flags;
325 static time_t modtime;
329 static uint32 rdev_major;
332 static char lastname[MAXPATHLEN];
333 char *fname, fbuf[MAXPATHLEN];
341 modtime = 0, mode = 0;
342 dev = 0, rdev = makedev(0, 0);
349 io_write_phase = "send_file_entry";
351 fname = f_name_to(file, fbuf);
355 if (file->mode == mode)
356 flags |= XMIT_SAME_MODE;
359 if (preserve_devices) {
360 if (protocol_version < 28) {
361 if (IS_DEVICE(mode)) {
362 if (file->u.rdev == rdev)
363 flags |= XMIT_SAME_RDEV_pre28;
367 rdev = makedev(0, 0);
368 } else if (IS_DEVICE(mode)) {
370 if ((uint32)major(rdev) == rdev_major)
371 flags |= XMIT_SAME_RDEV_MAJOR;
373 rdev_major = major(rdev);
374 if ((uint32)minor(rdev) <= 0xFFu)
375 flags |= XMIT_RDEV_MINOR_IS_SMALL;
378 if (file->uid == uid)
379 flags |= XMIT_SAME_UID;
382 if (file->gid == gid)
383 flags |= XMIT_SAME_GID;
386 if (file->modtime == modtime)
387 flags |= XMIT_SAME_TIME;
389 modtime = file->modtime;
391 #if SUPPORT_HARD_LINKS
392 if (file->link_u.idev) {
393 if (file->F_DEV == dev) {
394 if (protocol_version >= 28)
395 flags |= XMIT_SAME_DEV;
398 flags |= XMIT_HAS_IDEV_DATA;
403 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
405 l2 = strlen(fname+l1);
408 flags |= XMIT_SAME_NAME;
410 flags |= XMIT_LONG_NAME;
412 /* We must make sure we don't send a zero flag byte or the
413 * other end will terminate the flist transfer. Note that
414 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
415 * it's harmless way to add a bit to the first flag byte. */
416 if (protocol_version >= 28) {
417 if (!flags && !S_ISDIR(mode))
418 flags |= XMIT_TOP_DIR;
419 if ((flags & 0xFF00) || !flags) {
420 flags |= XMIT_EXTENDED_FLAGS;
421 write_byte(f, flags);
422 write_byte(f, flags >> 8);
424 write_byte(f, flags);
426 if (!(flags & 0xFF) && !S_ISDIR(mode))
427 flags |= XMIT_TOP_DIR;
429 flags |= XMIT_LONG_NAME;
430 write_byte(f, flags);
432 if (flags & XMIT_SAME_NAME)
434 if (flags & XMIT_LONG_NAME)
438 write_buf(f, fname + l1, l2);
440 write_longint(f, file->length);
441 if (!(flags & XMIT_SAME_TIME))
442 write_int(f, modtime);
443 if (!(flags & XMIT_SAME_MODE))
444 write_int(f, to_wire_mode(mode));
445 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
450 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
455 if (preserve_devices && IS_DEVICE(mode)) {
456 if (protocol_version < 28) {
457 if (!(flags & XMIT_SAME_RDEV_pre28))
458 write_int(f, (int)rdev);
460 if (!(flags & XMIT_SAME_RDEV_MAJOR))
461 write_int(f, major(rdev));
462 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
463 write_byte(f, minor(rdev));
465 write_int(f, minor(rdev));
470 if (preserve_links && S_ISLNK(mode)) {
471 int len = strlen(file->u.link);
473 write_buf(f, file->u.link, len);
477 #if SUPPORT_HARD_LINKS
478 if (flags & XMIT_HAS_IDEV_DATA) {
479 if (protocol_version < 26) {
480 /* 32-bit dev_t and ino_t */
482 write_int(f, file->F_INODE);
484 /* 64-bit dev_t and ino_t */
485 if (!(flags & XMIT_SAME_DEV))
486 write_longint(f, dev);
487 write_longint(f, file->F_INODE);
492 if (always_checksum) {
496 else if (protocol_version < 28) {
497 /* Prior to 28, we sent a useless set of nulls. */
503 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
507 strlcpy(lastname, fname, MAXPATHLEN);
509 io_write_phase = "unknown";
514 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
515 struct file_list *flist, int f)
517 static time_t modtime;
521 static uint32 rdev_major;
524 static char lastname[MAXPATHLEN], *lastdir;
525 static int lastdir_len = -1;
526 char thisname[MAXPATHLEN];
527 unsigned int l1 = 0, l2 = 0;
528 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
530 char *basename, *dirname, *bp;
531 struct file_struct *file;
534 modtime = 0, mode = 0;
535 dev = 0, rdev = makedev(0, 0);
542 if (flags & XMIT_SAME_NAME)
545 if (flags & XMIT_LONG_NAME)
550 if (l2 >= MAXPATHLEN - l1) {
552 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
553 flags, l1, l2, lastname);
554 overflow("receive_file_entry");
557 strlcpy(thisname, lastname, l1 + 1);
558 read_sbuf(f, &thisname[l1], l2);
559 thisname[l1 + l2] = 0;
561 strlcpy(lastname, thisname, MAXPATHLEN);
563 clean_fname(thisname);
566 sanitize_path(thisname, NULL);
568 if ((basename = strrchr(thisname, '/')) != NULL) {
569 dirname_len = ++basename - thisname; /* counts future '\0' */
570 if (lastdir_len == dirname_len - 1
571 && strncmp(thisname, lastdir, lastdir_len) == 0) {
573 dirname_len = 0; /* indicates no copy is needed */
581 basename_len = strlen(basename) + 1; /* count the '\0' */
583 file_length = read_longint(f);
584 if (!(flags & XMIT_SAME_TIME))
585 modtime = (time_t)read_int(f);
586 if (!(flags & XMIT_SAME_MODE))
587 mode = from_wire_mode(read_int(f));
589 if (preserve_uid && !(flags & XMIT_SAME_UID))
590 uid = (uid_t)read_int(f);
591 if (preserve_gid && !(flags & XMIT_SAME_GID))
592 gid = (gid_t)read_int(f);
594 if (preserve_devices) {
595 if (protocol_version < 28) {
596 if (IS_DEVICE(mode)) {
597 if (!(flags & XMIT_SAME_RDEV_pre28))
598 rdev = (dev_t)read_int(f);
600 rdev = makedev(0, 0);
601 } else if (IS_DEVICE(mode)) {
603 if (!(flags & XMIT_SAME_RDEV_MAJOR))
604 rdev_major = read_int(f);
605 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
606 rdev_minor = read_byte(f);
608 rdev_minor = read_int(f);
609 rdev = makedev(rdev_major, rdev_minor);
614 if (preserve_links && S_ISLNK(mode)) {
615 linkname_len = read_int(f) + 1; /* count the '\0' */
616 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
617 rprintf(FERROR, "overflow: linkname_len=%d\n",
619 overflow("receive_file_entry");
626 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
628 alloc_len = file_struct_len + dirname_len + basename_len
629 + linkname_len + sum_len;
630 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
632 file = *fptr = (struct file_struct *)bp;
633 memset(bp, 0, file_struct_len);
634 bp += file_struct_len;
636 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
637 file->modtime = modtime;
638 file->length = file_length;
644 file->dirname = lastdir = bp;
645 lastdir_len = dirname_len - 1;
646 memcpy(bp, dirname, dirname_len - 1);
650 file->dirname = dirname;
653 memcpy(bp, basename, basename_len);
656 if (preserve_devices && IS_DEVICE(mode))
662 read_sbuf(f, bp, linkname_len - 1);
664 sanitize_path(bp, lastdir);
669 #if SUPPORT_HARD_LINKS
670 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
671 flags |= XMIT_HAS_IDEV_DATA;
672 if (flags & XMIT_HAS_IDEV_DATA) {
674 if (protocol_version < 26) {
678 if (!(flags & XMIT_SAME_DEV))
679 dev = read_longint(f);
680 inode = read_longint(f);
682 if (flist->hlink_pool) {
683 file->link_u.idev = pool_talloc(flist->hlink_pool,
684 struct idev, 1, "inode_table");
685 file->F_INODE = inode;
691 if (always_checksum) {
694 file->u.sum = sum = bp;
696 } else if (protocol_version < 28) {
697 /* Prior to 28, we get a useless set of nulls. */
703 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
707 if (!preserve_perms) {
708 extern int orig_umask;
709 /* set an appropriate set of permissions based on original
710 * permissions and umask. This emulates what GNU cp does */
711 file->mode &= ~orig_umask;
717 * Create a file_struct for a named file by reading its stat()
718 * information and performing extensive checks against global
721 * @return the new file, or NULL if there was an error or this file
722 * should be excluded.
724 * @todo There is a small optimization opportunity here to avoid
725 * stat()ing the file in some circumstances, which has a certain cost.
726 * We are called immediately after doing readdir(), and so we may
727 * already know the d_type of the file. We could for example avoid
728 * statting directories if we're not recursing, but this is not a very
729 * important case. Some systems may not have d_type.
731 struct file_struct *make_file(char *fname,
732 struct file_list *flist, int exclude_level)
734 static char *lastdir;
735 static int lastdir_len = -1;
736 struct file_struct *file;
738 char sum[SUM_LENGTH];
739 char thisname[MAXPATHLEN];
740 char linkname[MAXPATHLEN];
741 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
742 char *basename, *dirname, *bp;
743 unsigned short flags = 0;
745 if (!flist) /* lastdir isn't valid if flist is NULL */
748 if (strlcpy(thisname, fname, sizeof thisname)
749 >= sizeof thisname - flist_dir_len) {
750 rprintf(FINFO, "skipping overly long name: %s\n", fname);
753 clean_fname(thisname);
755 sanitize_path(thisname, NULL);
757 memset(sum, 0, SUM_LENGTH);
759 if (readlink_stat(thisname, &st, linkname) != 0) {
760 int save_errno = errno;
761 if (errno == ENOENT) {
762 enum logcode c = am_daemon && protocol_version < 28
764 /* either symlink pointing nowhere or file that
765 * was removed during rsync run; see if excluded
766 * before reporting an error */
767 if (exclude_level != NO_EXCLUDES
768 && check_exclude_file(thisname, 0, exclude_level)) {
769 /* file is excluded anyway, ignore silently */
772 io_error |= IOERR_VANISHED;
773 rprintf(c, "file has vanished: %s\n",
774 full_fname(thisname));
777 io_error |= IOERR_GENERAL;
778 rprintf(FERROR, "readlink %s failed: %s\n",
779 full_fname(thisname), strerror(save_errno));
784 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
785 if (exclude_level == NO_EXCLUDES)
788 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
789 rprintf(FINFO, "skipping directory %s\n", thisname);
793 /* We only care about directories because we need to avoid recursing
794 * into a mount-point directory, not to avoid copying a symlinked
795 * file if -L (or similar) was specified. */
796 if (one_file_system && st.st_dev != filesystem_dev
797 && S_ISDIR(st.st_mode))
798 flags |= FLAG_MOUNT_POINT;
800 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
803 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
809 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
810 who_am_i(), thisname, exclude_level);
813 if ((basename = strrchr(thisname, '/')) != NULL) {
814 dirname_len = ++basename - thisname; /* counts future '\0' */
815 if (lastdir_len == dirname_len - 1
816 && strncmp(thisname, lastdir, lastdir_len) == 0) {
818 dirname_len = 0; /* indicates no copy is needed */
826 basename_len = strlen(basename) + 1; /* count the '\0' */
829 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
834 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
836 alloc_len = file_struct_len + dirname_len + basename_len
837 + linkname_len + sum_len;
839 bp = pool_alloc(flist->file_pool, alloc_len,
840 "receive_file_entry");
842 if (!(bp = new_array(char, alloc_len)))
843 out_of_memory("receive_file_entry");
846 file = (struct file_struct *)bp;
847 memset(bp, 0, file_struct_len);
848 bp += file_struct_len;
851 file->modtime = st.st_mtime;
852 file->length = st.st_size;
853 file->mode = st.st_mode;
854 file->uid = st.st_uid;
855 file->gid = st.st_gid;
857 #if SUPPORT_HARD_LINKS
858 if (flist && flist->hlink_pool) {
859 if (protocol_version < 28) {
860 if (S_ISREG(st.st_mode))
861 file->link_u.idev = pool_talloc(
862 flist->hlink_pool, struct idev, 1,
865 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
866 file->link_u.idev = pool_talloc(
867 flist->hlink_pool, struct idev, 1,
871 if (file->link_u.idev) {
872 file->F_DEV = st.st_dev;
873 file->F_INODE = st.st_ino;
878 file->dirname = lastdir = bp;
879 lastdir_len = dirname_len - 1;
880 memcpy(bp, dirname, dirname_len - 1);
884 file->dirname = dirname;
887 memcpy(bp, basename, basename_len);
890 #ifdef HAVE_STRUCT_STAT_ST_RDEV
891 if (preserve_devices && IS_DEVICE(st.st_mode))
892 file->u.rdev = st.st_rdev;
898 memcpy(bp, linkname, linkname_len);
905 file_checksum(thisname, bp, st.st_size);
909 file->basedir = flist_dir;
911 if (!S_ISDIR(st.st_mode))
912 stats.total_size += st.st_size;
918 void send_file_name(int f, struct file_list *flist, char *fname,
919 int recursive, unsigned short base_flags)
921 struct file_struct *file;
922 char fbuf[MAXPATHLEN];
923 extern int delete_excluded;
925 /* f is set to -1 when calculating deletion file list */
926 file = make_file(fname, flist,
927 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
932 maybe_emit_filelist_progress(flist);
937 file->flags |= FLAG_TOP_DIR;
939 if (file->basename[0]) {
940 flist->files[flist->count++] = file;
941 send_file_entry(file, f, base_flags);
944 if (recursive && S_ISDIR(file->mode)
945 && !(file->flags & FLAG_MOUNT_POINT)) {
946 struct exclude_list_struct last_list = local_exclude_list;
947 local_exclude_list.head = local_exclude_list.tail = NULL;
948 send_directory(f, flist, f_name_to(file, fbuf));
949 free_exclude_list(&local_exclude_list);
950 local_exclude_list = last_list;
955 static void send_directory(int f, struct file_list *flist, char *dir)
959 char fname[MAXPATHLEN];
965 io_error |= IOERR_GENERAL;
966 rprintf(FERROR, "opendir %s failed: %s\n",
967 full_fname(dir), strerror(errno));
971 offset = strlcpy(fname, dir, MAXPATHLEN);
973 if (offset >= MAXPATHLEN || p[-1] != '/') {
974 if (offset >= MAXPATHLEN - 1) {
975 io_error |= IOERR_GENERAL;
976 rprintf(FERROR, "skipping long-named directory: %s\n",
986 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
987 < MAXPATHLEN - offset) {
988 add_exclude_file(&local_exclude_list, fname,
989 XFLG_WORD_SPLIT | XFLG_NO_PREFIXES);
991 io_error |= IOERR_GENERAL;
993 "cannot cvs-exclude in long-named directory %s\n",
998 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
999 char *dname = d_name(di);
1000 if (dname[0] == '.' && (dname[1] == '\0'
1001 || (dname[1] == '.' && dname[2] == '\0')))
1003 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
1004 send_file_name(f, flist, fname, recurse, 0);
1006 io_error |= IOERR_GENERAL;
1008 "cannot send long-named file %s\n",
1013 io_error |= IOERR_GENERAL;
1014 rprintf(FERROR, "readdir(%s): (%d) %s\n",
1015 dir, errno, strerror(errno));
1023 * The delete_files() function in receiver.c sets f to -1 so that we just
1024 * construct the file list in memory without sending it over the wire. It
1025 * also has the side-effect of ignoring user-excludes if delete_excluded
1026 * is set (so that the delete list includes user-excluded files).
1028 struct file_list *send_file_list(int f, int argc, char *argv[])
1032 char *p, *dir, olddir[sizeof curr_dir];
1033 char lastpath[MAXPATHLEN] = "";
1034 struct file_list *flist;
1038 if (show_filelist_p() && f != -1)
1039 start_filelist_progress("building file list");
1041 start_write = stats.total_written;
1043 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1047 io_start_buffering_out(f);
1048 if (filesfrom_fd >= 0) {
1049 if (argv[0] && !push_dir(argv[0])) {
1050 rprintf(FERROR, "push_dir %s failed: %s\n",
1051 full_fname(argv[0]), strerror(errno));
1052 exit_cleanup(RERR_FILESELECT);
1059 char fname2[MAXPATHLEN];
1060 char *fname = fname2;
1063 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1065 sanitize_path(fname, NULL);
1069 strlcpy(fname, *argv++, MAXPATHLEN);
1071 sanitize_path(fname, NULL);
1075 if (fname[l - 1] == '/') {
1076 if (l == 2 && fname[0] == '.') {
1077 /* Turn "./" into just "." rather than "./." */
1079 } else if (l < MAXPATHLEN) {
1085 if (link_stat(fname, &st) != 0) {
1087 io_error |= IOERR_GENERAL;
1088 rprintf(FERROR, "link_stat %s failed: %s\n",
1089 full_fname(fname), strerror(errno));
1094 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1095 rprintf(FINFO, "skipping directory %s\n", fname);
1102 if (!relative_paths) {
1103 p = strrchr(fname, '/');
1112 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1113 /* this ensures we send the intermediate directories,
1114 thus getting their permissions right */
1115 char *lp = lastpath, *fn = fname, *slash = fname;
1117 /* Skip any initial directories in our path that we
1118 * have in common with lastpath. */
1119 while (*fn && *lp == *fn) {
1125 if (fn != p || (*lp && *lp != '/')) {
1126 int copy_links_saved = copy_links;
1127 int recurse_saved = recurse;
1128 copy_links = copy_unsafe_links;
1129 /* set recurse to 1 to prevent make_file
1130 * from ignoring directory, but still
1131 * turn off the recursive parameter to
1134 while ((slash = strchr(slash+1, '/')) != 0) {
1136 send_file_name(f, flist, fname, 0, 0);
1139 copy_links = copy_links_saved;
1140 recurse = recurse_saved;
1142 strlcpy(lastpath, fname, sizeof lastpath);
1151 static char *lastdir;
1152 static int lastdir_len;
1154 strcpy(olddir, curr_dir); /* can't overflow */
1156 if (!push_dir(dir)) {
1157 io_error |= IOERR_GENERAL;
1158 rprintf(FERROR, "push_dir %s failed: %s\n",
1159 full_fname(dir), strerror(errno));
1163 if (lastdir && strcmp(lastdir, dir) == 0) {
1164 flist_dir = lastdir;
1165 flist_dir_len = lastdir_len;
1167 flist_dir = lastdir = strdup(dir);
1168 flist_dir_len = lastdir_len = strlen(dir);
1172 if (one_file_system)
1173 set_filesystem(fname);
1175 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1180 if (!pop_dir(olddir)) {
1181 rprintf(FERROR, "pop_dir %s failed: %s\n",
1182 full_fname(dir), strerror(errno));
1183 exit_cleanup(RERR_FILESELECT);
1189 send_file_entry(NULL, f, 0);
1191 if (show_filelist_p())
1192 finish_filelist_progress(flist);
1195 if (flist->hlink_pool) {
1196 pool_destroy(flist->hlink_pool);
1197 flist->hlink_pool = NULL;
1200 clean_flist(flist, 0, 0);
1203 /* Now send the uid/gid list. This was introduced in
1204 * protocol version 15 */
1207 /* send the io_error flag */
1208 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1211 stats.flist_size = stats.total_written - start_write;
1212 stats.num_files = flist->count;
1214 write_batch_flist_info(flist->count, flist->files);
1218 output_flist(flist);
1221 rprintf(FINFO, "send_file_list done\n");
1227 struct file_list *recv_file_list(int f)
1229 struct file_list *flist;
1230 unsigned short flags;
1232 extern int list_only;
1234 if (show_filelist_p())
1235 start_filelist_progress("receiving file list");
1237 start_read = stats.total_read;
1239 flist = flist_new(WITH_HLINK, "recv_file_list");
1242 flist->malloced = 1000;
1243 flist->files = new_array(struct file_struct *, flist->malloced);
1248 while ((flags = read_byte(f)) != 0) {
1249 int i = flist->count;
1251 flist_expand(flist);
1253 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1254 flags |= read_byte(f) << 8;
1255 receive_file_entry(&flist->files[i], flags, flist, f);
1257 if (S_ISREG(flist->files[i]->mode))
1258 stats.total_size += flist->files[i]->length;
1262 maybe_emit_filelist_progress(flist);
1265 rprintf(FINFO, "recv_file_name(%s)\n",
1266 f_name(flist->files[i]));
1269 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1272 rprintf(FINFO, "received %d names\n", flist->count);
1274 if (show_filelist_p())
1275 finish_filelist_progress(flist);
1277 clean_flist(flist, relative_paths, 1);
1280 /* Now send the uid/gid list. This was introduced in
1281 * protocol version 15 */
1282 recv_uid_list(f, flist);
1285 /* Recv the io_error flag */
1286 if (lp_ignore_errors(module_id) || ignore_errors)
1289 io_error |= read_int(f);
1294 output_flist(flist);
1298 for (i = 0; i < flist->count; i++)
1299 list_file_entry(flist->files[i]);
1303 rprintf(FINFO, "recv_file_list done\n");
1305 stats.flist_size = stats.total_read - start_read;
1306 stats.num_files = flist->count;
1311 out_of_memory("recv_file_list");
1312 return NULL; /* not reached */
1316 int file_compare(struct file_struct **file1, struct file_struct **file2)
1318 struct file_struct *f1 = *file1;
1319 struct file_struct *f2 = *file2;
1321 if (!f1->basename && !f2->basename)
1327 if (f1->dirname == f2->dirname)
1328 return u_strcmp(f1->basename, f2->basename);
1329 return f_name_cmp(f1, f2);
1333 int flist_find(struct file_list *flist, struct file_struct *f)
1335 int low = 0, high = flist->count - 1;
1337 while (high >= 0 && !flist->files[high]->basename) high--;
1342 while (low != high) {
1343 int mid = (low + high) / 2;
1344 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1346 return flist_up(flist, mid);
1353 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1354 return flist_up(flist, low);
1359 * Free up any resources a file_struct has allocated
1360 * and clear the file.
1362 void clear_file(int i, struct file_list *flist)
1364 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1365 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1366 memset(flist->files[i], 0, file_struct_len);
1371 * allocate a new file list
1373 struct file_list *flist_new(int with_hlink, char *msg)
1375 struct file_list *flist;
1377 flist = new(struct file_list);
1381 memset(flist, 0, sizeof (struct file_list));
1383 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1384 out_of_memory, POOL_INTERN)))
1387 #if SUPPORT_HARD_LINKS
1388 if (with_hlink && preserve_hard_links) {
1389 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1390 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1399 * free up all elements in a flist
1401 void flist_free(struct file_list *flist)
1403 pool_destroy(flist->file_pool);
1404 pool_destroy(flist->hlink_pool);
1411 * This routine ensures we don't have any duplicate names in our file list.
1412 * duplicate names can cause corruption because of the pipelining
1414 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1418 if (!flist || flist->count == 0)
1421 qsort(flist->files, flist->count,
1422 sizeof flist->files[0], (int (*)()) file_compare);
1424 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1425 if (flist->files[i]->basename) {
1430 while (++i < flist->count) {
1431 if (!flist->files[i]->basename)
1433 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1434 if (verbose > 1 && !am_server) {
1436 "removing duplicate name %s from file list %d\n",
1437 f_name(flist->files[i]), i);
1439 /* Make sure that if we unduplicate '.', that we don't
1440 * lose track of a user-specified starting point (or
1441 * else deletions will mysteriously fail with -R). */
1442 if (flist->files[i]->flags & FLAG_TOP_DIR)
1443 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1445 clear_file(i, flist);
1451 /* we need to strip off the root directory in the case
1452 of relative paths, but this must be done _after_
1453 the sorting phase */
1454 for (i = 0; i < flist->count; i++) {
1455 if (flist->files[i]->dirname &&
1456 flist->files[i]->dirname[0] == '/') {
1457 memmove(&flist->files[i]->dirname[0],
1458 &flist->files[i]->dirname[1],
1459 strlen(flist->files[i]->dirname));
1462 if (flist->files[i]->dirname &&
1463 !flist->files[i]->dirname[0]) {
1464 flist->files[i]->dirname = NULL;
1470 static void output_flist(struct file_list *flist)
1472 char uidbuf[16], gidbuf[16];
1473 struct file_struct *file;
1476 for (i = 0; i < flist->count; i++) {
1477 file = flist->files[i];
1478 if (am_root && preserve_uid)
1479 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1482 if (preserve_gid && file->gid != GID_NONE)
1483 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1486 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1487 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1488 NS(file->basename), (int) file->mode,
1489 (double) file->length, uidbuf, gidbuf);
1494 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1496 /* Compare the names of two file_struct entities, just like strcmp()
1497 * would do if it were operating on the joined strings. We assume
1498 * that there are no 0-length strings.
1500 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1503 const uchar *c1, *c2;
1504 enum fnc_state state1, state2;
1506 if (!f1 || !f1->basename) {
1507 if (!f2 || !f2->basename)
1511 if (!f2 || !f2->basename)
1514 if (!(c1 = (uchar*)f1->dirname)) {
1516 c1 = (uchar*)f1->basename;
1519 if (!(c2 = (uchar*)f2->dirname)) {
1521 c2 = (uchar*)f2->basename;
1526 if ((dif = (int)*c1 - (int)*c2) != 0)
1536 c1 = (uchar*)f1->basename;
1550 c2 = (uchar*)f2->basename;
1564 /* Return a copy of the full filename of a flist entry, using the indicated
1565 * buffer. No size-checking is done because we checked the size when creating
1566 * the file_struct entry.
1568 char *f_name_to(struct file_struct *f, char *fbuf)
1570 if (!f || !f->basename)
1574 int len = strlen(f->dirname);
1575 memcpy(fbuf, f->dirname, len);
1577 strcpy(fbuf + len + 1, f->basename);
1579 strcpy(fbuf, f->basename);
1584 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1586 char *f_name(struct file_struct *f)
1588 static char names[5][MAXPATHLEN];
1589 static unsigned int n;
1591 n = (n + 1) % (sizeof names / sizeof names[0]);
1593 return f_name_to(f, names[n]);