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)
216 #if 0 /* This currently never happens, so avoid a useless compare. */
217 if (exclude_level == NO_EXCLUDES)
221 /* never exclude '.', even if somebody does --exclude '*' */
222 if (fname[0] == '.' && !fname[1])
224 /* Handle the -R version of the '.' dir. */
225 if (fname[0] == '/') {
226 int len = strlen(fname);
227 if (fname[len-1] == '.' && fname[len-2] == '/')
231 if (server_exclude_list.head
232 && check_exclude(&server_exclude_list, fname, is_dir) < 0)
234 if (exclude_level != ALL_EXCLUDES)
236 if (exclude_list.head
237 && (rc = check_exclude(&exclude_list, fname, is_dir)) != 0)
239 if (local_exclude_list.head
240 && check_exclude(&local_exclude_list, fname, is_dir) < 0)
245 /* used by the one_file_system code */
246 static dev_t filesystem_dev;
248 static void set_filesystem(char *fname)
251 if (link_stat(fname, &st) != 0)
253 filesystem_dev = st.st_dev;
257 static int to_wire_mode(mode_t mode)
260 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
261 return (mode & ~(_S_IFMT)) | 0120000;
266 static mode_t from_wire_mode(int mode)
268 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
269 return (mode & ~(_S_IFMT)) | _S_IFLNK;
270 return (mode_t) mode;
274 static void send_directory(int f, struct file_list *flist, char *dir);
276 static char *flist_dir;
277 static int flist_dir_len;
281 * Make sure @p flist is big enough to hold at least @p flist->count
284 void flist_expand(struct file_list *flist)
288 if (flist->count < flist->malloced)
291 if (flist->malloced < FLIST_START)
292 flist->malloced = FLIST_START;
293 else if (flist->malloced >= FLIST_LINEAR)
294 flist->malloced += FLIST_LINEAR;
296 flist->malloced *= 2;
299 * In case count jumped or we are starting the list
300 * with a known size just set it.
302 if (flist->malloced < flist->count)
303 flist->malloced = flist->count;
306 new_ptr = realloc_array(flist->files,
307 struct file_struct *, flist->malloced);
309 new_ptr = new_array(struct file_struct *, flist->malloced);
313 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
315 (double) sizeof flist->files[0] * flist->malloced,
316 (new_ptr == flist->files) ? " not" : "");
319 flist->files = (struct file_struct **) new_ptr;
322 out_of_memory("flist_expand");
325 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
327 unsigned short flags;
328 static time_t modtime;
332 static uint32 rdev_major;
335 static char lastname[MAXPATHLEN];
336 char *fname, fbuf[MAXPATHLEN];
344 modtime = 0, mode = 0;
345 dev = 0, rdev = makedev(0, 0);
352 io_write_phase = "send_file_entry";
354 fname = f_name_to(file, fbuf);
358 if (file->mode == mode)
359 flags |= XMIT_SAME_MODE;
362 if (preserve_devices) {
363 if (protocol_version < 28) {
364 if (IS_DEVICE(mode)) {
365 if (file->u.rdev == rdev)
366 flags |= XMIT_SAME_RDEV_pre28;
370 rdev = makedev(0, 0);
371 } else if (IS_DEVICE(mode)) {
373 if ((uint32)major(rdev) == rdev_major)
374 flags |= XMIT_SAME_RDEV_MAJOR;
376 rdev_major = major(rdev);
377 if ((uint32)minor(rdev) <= 0xFFu)
378 flags |= XMIT_RDEV_MINOR_IS_SMALL;
381 if (file->uid == uid)
382 flags |= XMIT_SAME_UID;
385 if (file->gid == gid)
386 flags |= XMIT_SAME_GID;
389 if (file->modtime == modtime)
390 flags |= XMIT_SAME_TIME;
392 modtime = file->modtime;
394 #if SUPPORT_HARD_LINKS
395 if (file->link_u.idev) {
396 if (file->F_DEV == dev) {
397 if (protocol_version >= 28)
398 flags |= XMIT_SAME_DEV;
401 flags |= XMIT_HAS_IDEV_DATA;
406 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
408 l2 = strlen(fname+l1);
411 flags |= XMIT_SAME_NAME;
413 flags |= XMIT_LONG_NAME;
415 /* We must make sure we don't send a zero flag byte or the
416 * other end will terminate the flist transfer. Note that
417 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
418 * it's harmless way to add a bit to the first flag byte. */
419 if (protocol_version >= 28) {
420 if (!flags && !S_ISDIR(mode))
421 flags |= XMIT_TOP_DIR;
422 if ((flags & 0xFF00) || !flags) {
423 flags |= XMIT_EXTENDED_FLAGS;
424 write_byte(f, flags);
425 write_byte(f, flags >> 8);
427 write_byte(f, flags);
429 if (!(flags & 0xFF) && !S_ISDIR(mode))
430 flags |= XMIT_TOP_DIR;
432 flags |= XMIT_LONG_NAME;
433 write_byte(f, flags);
435 if (flags & XMIT_SAME_NAME)
437 if (flags & XMIT_LONG_NAME)
441 write_buf(f, fname + l1, l2);
443 write_longint(f, file->length);
444 if (!(flags & XMIT_SAME_TIME))
445 write_int(f, modtime);
446 if (!(flags & XMIT_SAME_MODE))
447 write_int(f, to_wire_mode(mode));
448 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
453 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
458 if (preserve_devices && IS_DEVICE(mode)) {
459 if (protocol_version < 28) {
460 if (!(flags & XMIT_SAME_RDEV_pre28))
461 write_int(f, (int)rdev);
463 if (!(flags & XMIT_SAME_RDEV_MAJOR))
464 write_int(f, major(rdev));
465 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
466 write_byte(f, minor(rdev));
468 write_int(f, minor(rdev));
473 if (preserve_links && S_ISLNK(mode)) {
474 int len = strlen(file->u.link);
476 write_buf(f, file->u.link, len);
480 #if SUPPORT_HARD_LINKS
481 if (flags & XMIT_HAS_IDEV_DATA) {
482 if (protocol_version < 26) {
483 /* 32-bit dev_t and ino_t */
485 write_int(f, file->F_INODE);
487 /* 64-bit dev_t and ino_t */
488 if (!(flags & XMIT_SAME_DEV))
489 write_longint(f, dev);
490 write_longint(f, file->F_INODE);
495 if (always_checksum) {
499 else if (protocol_version < 28) {
500 /* Prior to 28, we sent a useless set of nulls. */
506 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
510 strlcpy(lastname, fname, MAXPATHLEN);
512 io_write_phase = "unknown";
517 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
518 struct file_list *flist, int f)
520 static time_t modtime;
524 static uint32 rdev_major;
527 static char lastname[MAXPATHLEN], *lastdir;
528 static int lastdir_len = -1;
529 char thisname[MAXPATHLEN];
530 unsigned int l1 = 0, l2 = 0;
531 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
533 char *basename, *dirname, *bp;
534 struct file_struct *file;
537 modtime = 0, mode = 0;
538 dev = 0, rdev = makedev(0, 0);
546 if (flags & XMIT_SAME_NAME)
549 if (flags & XMIT_LONG_NAME)
554 if (l2 >= MAXPATHLEN - l1) {
556 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
557 flags, l1, l2, lastname);
558 overflow("receive_file_entry");
561 strlcpy(thisname, lastname, l1 + 1);
562 read_sbuf(f, &thisname[l1], l2);
563 thisname[l1 + l2] = 0;
565 strlcpy(lastname, thisname, MAXPATHLEN);
567 clean_fname(thisname);
570 sanitize_path(thisname, NULL);
572 if ((basename = strrchr(thisname, '/')) != NULL) {
573 dirname_len = ++basename - thisname; /* counts future '\0' */
574 if (lastdir_len == dirname_len - 1
575 && strncmp(thisname, lastdir, lastdir_len) == 0) {
577 dirname_len = 0; /* indicates no copy is needed */
585 basename_len = strlen(basename) + 1; /* count the '\0' */
587 file_length = read_longint(f);
588 if (!(flags & XMIT_SAME_TIME))
589 modtime = (time_t)read_int(f);
590 if (!(flags & XMIT_SAME_MODE))
591 mode = from_wire_mode(read_int(f));
593 if (preserve_uid && !(flags & XMIT_SAME_UID))
594 uid = (uid_t)read_int(f);
595 if (preserve_gid && !(flags & XMIT_SAME_GID))
596 gid = (gid_t)read_int(f);
598 if (preserve_devices) {
599 if (protocol_version < 28) {
600 if (IS_DEVICE(mode)) {
601 if (!(flags & XMIT_SAME_RDEV_pre28))
602 rdev = (dev_t)read_int(f);
604 rdev = makedev(0, 0);
605 } else if (IS_DEVICE(mode)) {
607 if (!(flags & XMIT_SAME_RDEV_MAJOR))
608 rdev_major = read_int(f);
609 if (flags & XMIT_RDEV_MINOR_IS_SMALL)
610 rdev_minor = read_byte(f);
612 rdev_minor = read_int(f);
613 rdev = makedev(rdev_major, rdev_minor);
618 if (preserve_links && S_ISLNK(mode)) {
619 linkname_len = read_int(f) + 1; /* count the '\0' */
620 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
621 rprintf(FERROR, "overflow: linkname_len=%d\n",
623 overflow("receive_file_entry");
630 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
632 alloc_len = file_struct_len + dirname_len + basename_len
633 + linkname_len + sum_len;
634 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
636 file = *fptr = (struct file_struct *)bp;
637 memset(bp, 0, file_struct_len);
638 bp += file_struct_len;
640 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
641 file->modtime = modtime;
642 file->length = file_length;
648 file->dirname = lastdir = bp;
649 lastdir_len = dirname_len - 1;
650 memcpy(bp, dirname, dirname_len - 1);
654 file->dirname = dirname;
657 memcpy(bp, basename, basename_len);
660 if (preserve_devices && IS_DEVICE(mode))
666 read_sbuf(f, bp, linkname_len - 1);
668 sanitize_path(bp, lastdir);
673 #if SUPPORT_HARD_LINKS
674 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
675 flags |= XMIT_HAS_IDEV_DATA;
676 if (flags & XMIT_HAS_IDEV_DATA) {
678 if (protocol_version < 26) {
682 if (!(flags & XMIT_SAME_DEV))
683 dev = read_longint(f);
684 inode = read_longint(f);
686 if (flist->hlink_pool) {
687 file->link_u.idev = pool_talloc(flist->hlink_pool,
688 struct idev, 1, "inode_table");
689 file->F_INODE = inode;
695 if (always_checksum) {
698 file->u.sum = sum = bp;
700 } else if (protocol_version < 28) {
701 /* Prior to 28, we get a useless set of nulls. */
707 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
711 if (!preserve_perms) {
712 extern int orig_umask;
713 /* set an appropriate set of permissions based on original
714 * permissions and umask. This emulates what GNU cp does */
715 file->mode &= ~orig_umask;
721 * Create a file_struct for a named file by reading its stat()
722 * information and performing extensive checks against global
725 * @return the new file, or NULL if there was an error or this file
726 * should be excluded.
728 * @todo There is a small optimization opportunity here to avoid
729 * stat()ing the file in some circumstances, which has a certain cost.
730 * We are called immediately after doing readdir(), and so we may
731 * already know the d_type of the file. We could for example avoid
732 * statting directories if we're not recursing, but this is not a very
733 * important case. Some systems may not have d_type.
735 struct file_struct *make_file(char *fname,
736 struct file_list *flist, int exclude_level)
738 static char *lastdir;
739 static int lastdir_len = -1;
740 struct file_struct *file;
742 char sum[SUM_LENGTH];
743 char thisname[MAXPATHLEN];
744 char linkname[MAXPATHLEN];
745 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
746 char *basename, *dirname, *bp;
747 unsigned short flags = 0;
749 if (!flist || !flist->count) /* Ignore lastdir when invalid. */
752 if (strlcpy(thisname, fname, sizeof thisname)
753 >= sizeof thisname - flist_dir_len) {
754 rprintf(FINFO, "skipping overly long name: %s\n", fname);
757 clean_fname(thisname);
759 sanitize_path(thisname, NULL);
761 memset(sum, 0, SUM_LENGTH);
763 if (readlink_stat(thisname, &st, linkname) != 0) {
764 int save_errno = errno;
765 if (errno == ENOENT) {
766 enum logcode c = am_daemon && protocol_version < 28
768 /* either symlink pointing nowhere or file that
769 * was removed during rsync run; see if excluded
770 * before reporting an error */
771 if (exclude_level != NO_EXCLUDES
772 && check_exclude_file(thisname, 0, exclude_level)) {
773 /* file is excluded anyway, ignore silently */
776 io_error |= IOERR_VANISHED;
777 rprintf(c, "file has vanished: %s\n",
778 full_fname(thisname));
781 io_error |= IOERR_GENERAL;
782 rprintf(FERROR, "readlink %s failed: %s\n",
783 full_fname(thisname), strerror(save_errno));
788 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
789 if (exclude_level == NO_EXCLUDES)
792 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
793 rprintf(FINFO, "skipping directory %s\n", thisname);
797 /* We only care about directories because we need to avoid recursing
798 * into a mount-point directory, not to avoid copying a symlinked
799 * file if -L (or similar) was specified. */
800 if (one_file_system && st.st_dev != filesystem_dev
801 && S_ISDIR(st.st_mode))
802 flags |= FLAG_MOUNT_POINT;
804 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
807 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
813 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
814 who_am_i(), thisname, exclude_level);
817 if ((basename = strrchr(thisname, '/')) != NULL) {
818 dirname_len = ++basename - thisname; /* counts future '\0' */
819 if (lastdir_len == dirname_len - 1
820 && strncmp(thisname, lastdir, lastdir_len) == 0) {
822 dirname_len = 0; /* indicates no copy is needed */
830 basename_len = strlen(basename) + 1; /* count the '\0' */
833 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
838 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
840 alloc_len = file_struct_len + dirname_len + basename_len
841 + linkname_len + sum_len;
843 bp = pool_alloc(flist->file_pool, alloc_len,
844 "receive_file_entry");
846 if (!(bp = new_array(char, alloc_len)))
847 out_of_memory("receive_file_entry");
850 file = (struct file_struct *)bp;
851 memset(bp, 0, file_struct_len);
852 bp += file_struct_len;
855 file->modtime = st.st_mtime;
856 file->length = st.st_size;
857 file->mode = st.st_mode;
858 file->uid = st.st_uid;
859 file->gid = st.st_gid;
861 #if SUPPORT_HARD_LINKS
862 if (flist && flist->hlink_pool) {
863 if (protocol_version < 28) {
864 if (S_ISREG(st.st_mode))
865 file->link_u.idev = pool_talloc(
866 flist->hlink_pool, struct idev, 1,
869 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
870 file->link_u.idev = pool_talloc(
871 flist->hlink_pool, struct idev, 1,
875 if (file->link_u.idev) {
876 file->F_DEV = st.st_dev;
877 file->F_INODE = st.st_ino;
882 file->dirname = lastdir = bp;
883 lastdir_len = dirname_len - 1;
884 memcpy(bp, dirname, dirname_len - 1);
888 file->dirname = dirname;
891 memcpy(bp, basename, basename_len);
894 #ifdef HAVE_STRUCT_STAT_ST_RDEV
895 if (preserve_devices && IS_DEVICE(st.st_mode))
896 file->u.rdev = st.st_rdev;
902 memcpy(bp, linkname, linkname_len);
909 file_checksum(thisname, bp, st.st_size);
913 file->basedir = flist_dir;
915 if (!S_ISDIR(st.st_mode))
916 stats.total_size += st.st_size;
922 void send_file_name(int f, struct file_list *flist, char *fname,
923 int recursive, unsigned short base_flags)
925 struct file_struct *file;
926 char fbuf[MAXPATHLEN];
927 extern int delete_excluded;
929 /* f is set to -1 when calculating deletion file list */
930 file = make_file(fname, flist,
931 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
936 maybe_emit_filelist_progress(flist);
941 file->flags |= FLAG_TOP_DIR;
943 if (file->basename[0]) {
944 flist->files[flist->count++] = file;
945 send_file_entry(file, f, base_flags);
948 if (recursive && S_ISDIR(file->mode)
949 && !(file->flags & FLAG_MOUNT_POINT)) {
950 struct exclude_list_struct last_list = local_exclude_list;
951 local_exclude_list.head = local_exclude_list.tail = NULL;
952 send_directory(f, flist, f_name_to(file, fbuf));
953 free_exclude_list(&local_exclude_list);
954 local_exclude_list = last_list;
959 static void send_directory(int f, struct file_list *flist, char *dir)
963 char fname[MAXPATHLEN];
969 io_error |= IOERR_GENERAL;
970 rprintf(FERROR, "opendir %s failed: %s\n",
971 full_fname(dir), strerror(errno));
975 offset = strlcpy(fname, dir, MAXPATHLEN);
977 if (offset >= MAXPATHLEN || p[-1] != '/') {
978 if (offset >= MAXPATHLEN - 1) {
979 io_error |= IOERR_GENERAL;
980 rprintf(FERROR, "skipping long-named directory: %s\n",
990 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
991 < MAXPATHLEN - offset) {
992 add_exclude_file(&local_exclude_list, fname,
993 XFLG_WORD_SPLIT | XFLG_WORDS_ONLY);
995 io_error |= IOERR_GENERAL;
997 "cannot cvs-exclude in long-named directory %s\n",
1002 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
1003 char *dname = d_name(di);
1004 if (dname[0] == '.' && (dname[1] == '\0'
1005 || (dname[1] == '.' && dname[2] == '\0')))
1007 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
1008 send_file_name(f, flist, fname, recurse, 0);
1010 io_error |= IOERR_GENERAL;
1012 "cannot send long-named file %s\n",
1017 io_error |= IOERR_GENERAL;
1018 rprintf(FERROR, "readdir(%s): (%d) %s\n",
1019 dir, errno, strerror(errno));
1027 * The delete_files() function in receiver.c sets f to -1 so that we just
1028 * construct the file list in memory without sending it over the wire. It
1029 * also has the side-effect of ignoring user-excludes if delete_excluded
1030 * is set (so that the delete list includes user-excluded files).
1032 struct file_list *send_file_list(int f, int argc, char *argv[])
1036 char *p, *dir, olddir[sizeof curr_dir];
1037 char lastpath[MAXPATHLEN] = "";
1038 struct file_list *flist;
1042 if (show_filelist_p() && f != -1)
1043 start_filelist_progress("building file list");
1045 start_write = stats.total_written;
1047 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1051 io_start_buffering_out(f);
1052 if (filesfrom_fd >= 0) {
1053 if (argv[0] && !push_dir(argv[0])) {
1054 rprintf(FERROR, "push_dir %s failed: %s\n",
1055 full_fname(argv[0]), strerror(errno));
1056 exit_cleanup(RERR_FILESELECT);
1063 char fname2[MAXPATHLEN];
1064 char *fname = fname2;
1067 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1069 sanitize_path(fname, NULL);
1073 strlcpy(fname, *argv++, MAXPATHLEN);
1075 sanitize_path(fname, NULL);
1079 if (fname[l - 1] == '/') {
1080 if (l == 2 && fname[0] == '.') {
1081 /* Turn "./" into just "." rather than "./." */
1083 } else if (l < MAXPATHLEN) {
1089 if (link_stat(fname, &st) != 0) {
1091 io_error |= IOERR_GENERAL;
1092 rprintf(FERROR, "link_stat %s failed: %s\n",
1093 full_fname(fname), strerror(errno));
1098 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1099 rprintf(FINFO, "skipping directory %s\n", fname);
1106 if (!relative_paths) {
1107 p = strrchr(fname, '/');
1116 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1117 /* this ensures we send the intermediate directories,
1118 thus getting their permissions right */
1119 char *lp = lastpath, *fn = fname, *slash = fname;
1121 /* Skip any initial directories in our path that we
1122 * have in common with lastpath. */
1123 while (*fn && *lp == *fn) {
1129 if (fn != p || (*lp && *lp != '/')) {
1130 int copy_links_saved = copy_links;
1131 int recurse_saved = recurse;
1132 copy_links = copy_unsafe_links;
1133 /* set recurse to 1 to prevent make_file
1134 * from ignoring directory, but still
1135 * turn off the recursive parameter to
1138 while ((slash = strchr(slash+1, '/')) != 0) {
1140 send_file_name(f, flist, fname, 0, 0);
1143 copy_links = copy_links_saved;
1144 recurse = recurse_saved;
1146 strlcpy(lastpath, fname, sizeof lastpath);
1155 static char *lastdir;
1156 static int lastdir_len;
1158 strcpy(olddir, curr_dir); /* can't overflow */
1160 if (!push_dir(dir)) {
1161 io_error |= IOERR_GENERAL;
1162 rprintf(FERROR, "push_dir %s failed: %s\n",
1163 full_fname(dir), strerror(errno));
1167 if (lastdir && strcmp(lastdir, dir) == 0) {
1168 flist_dir = lastdir;
1169 flist_dir_len = lastdir_len;
1171 flist_dir = lastdir = strdup(dir);
1172 flist_dir_len = lastdir_len = strlen(dir);
1176 if (one_file_system)
1177 set_filesystem(fname);
1179 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1184 if (!pop_dir(olddir)) {
1185 rprintf(FERROR, "pop_dir %s failed: %s\n",
1186 full_fname(dir), strerror(errno));
1187 exit_cleanup(RERR_FILESELECT);
1193 send_file_entry(NULL, f, 0);
1195 if (show_filelist_p())
1196 finish_filelist_progress(flist);
1199 if (flist->hlink_pool) {
1200 pool_destroy(flist->hlink_pool);
1201 flist->hlink_pool = NULL;
1204 clean_flist(flist, 0, 0);
1207 /* Now send the uid/gid list. This was introduced in
1208 * protocol version 15 */
1211 /* send the io_error flag */
1212 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1215 stats.flist_size = stats.total_written - start_write;
1216 stats.num_files = flist->count;
1218 write_batch_flist_info(flist->count, flist->files);
1222 output_flist(flist);
1225 rprintf(FINFO, "send_file_list done\n");
1231 struct file_list *recv_file_list(int f)
1233 struct file_list *flist;
1234 unsigned short flags;
1236 extern int list_only;
1238 if (show_filelist_p())
1239 start_filelist_progress("receiving file list");
1241 start_read = stats.total_read;
1243 flist = flist_new(WITH_HLINK, "recv_file_list");
1246 flist->malloced = 1000;
1247 flist->files = new_array(struct file_struct *, flist->malloced);
1252 while ((flags = read_byte(f)) != 0) {
1253 int i = flist->count;
1255 flist_expand(flist);
1257 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1258 flags |= read_byte(f) << 8;
1259 receive_file_entry(&flist->files[i], flags, flist, f);
1261 if (S_ISREG(flist->files[i]->mode))
1262 stats.total_size += flist->files[i]->length;
1266 maybe_emit_filelist_progress(flist);
1269 rprintf(FINFO, "recv_file_name(%s)\n",
1270 f_name(flist->files[i]));
1273 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1276 rprintf(FINFO, "received %d names\n", flist->count);
1278 if (show_filelist_p())
1279 finish_filelist_progress(flist);
1281 clean_flist(flist, relative_paths, 1);
1284 /* Now send the uid/gid list. This was introduced in
1285 * protocol version 15 */
1286 recv_uid_list(f, flist);
1289 /* Recv the io_error flag */
1290 if (lp_ignore_errors(module_id) || ignore_errors)
1293 io_error |= read_int(f);
1298 output_flist(flist);
1302 for (i = 0; i < flist->count; i++)
1303 list_file_entry(flist->files[i]);
1307 rprintf(FINFO, "recv_file_list done\n");
1309 stats.flist_size = stats.total_read - start_read;
1310 stats.num_files = flist->count;
1315 out_of_memory("recv_file_list");
1316 return NULL; /* not reached */
1320 int file_compare(struct file_struct **file1, struct file_struct **file2)
1322 struct file_struct *f1 = *file1;
1323 struct file_struct *f2 = *file2;
1325 if (!f1->basename && !f2->basename)
1331 if (f1->dirname == f2->dirname)
1332 return u_strcmp(f1->basename, f2->basename);
1333 return f_name_cmp(f1, f2);
1337 int flist_find(struct file_list *flist, struct file_struct *f)
1339 int low = 0, high = flist->count - 1;
1341 while (high >= 0 && !flist->files[high]->basename) high--;
1346 while (low != high) {
1347 int mid = (low + high) / 2;
1348 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1350 return flist_up(flist, mid);
1357 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1358 return flist_up(flist, low);
1363 * Free up any resources a file_struct has allocated
1364 * and clear the file.
1366 void clear_file(int i, struct file_list *flist)
1368 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1369 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1370 memset(flist->files[i], 0, file_struct_len);
1375 * allocate a new file list
1377 struct file_list *flist_new(int with_hlink, char *msg)
1379 struct file_list *flist;
1381 flist = new(struct file_list);
1385 memset(flist, 0, sizeof (struct file_list));
1387 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1388 out_of_memory, POOL_INTERN)))
1391 #if SUPPORT_HARD_LINKS
1392 if (with_hlink && preserve_hard_links) {
1393 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1394 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1403 * free up all elements in a flist
1405 void flist_free(struct file_list *flist)
1407 pool_destroy(flist->file_pool);
1408 pool_destroy(flist->hlink_pool);
1415 * This routine ensures we don't have any duplicate names in our file list.
1416 * duplicate names can cause corruption because of the pipelining
1418 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1422 if (!flist || flist->count == 0)
1425 qsort(flist->files, flist->count,
1426 sizeof flist->files[0], (int (*)()) file_compare);
1428 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1429 if (flist->files[i]->basename) {
1434 while (++i < flist->count) {
1435 if (!flist->files[i]->basename)
1437 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1438 if (verbose > 1 && !am_server) {
1440 "removing duplicate name %s from file list %d\n",
1441 f_name(flist->files[i]), i);
1443 /* Make sure that if we unduplicate '.', that we don't
1444 * lose track of a user-specified starting point (or
1445 * else deletions will mysteriously fail with -R). */
1446 if (flist->files[i]->flags & FLAG_TOP_DIR)
1447 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1449 clear_file(i, flist);
1455 /* we need to strip off the root directory in the case
1456 of relative paths, but this must be done _after_
1457 the sorting phase */
1458 for (i = 0; i < flist->count; i++) {
1459 if (flist->files[i]->dirname &&
1460 flist->files[i]->dirname[0] == '/') {
1461 memmove(&flist->files[i]->dirname[0],
1462 &flist->files[i]->dirname[1],
1463 strlen(flist->files[i]->dirname));
1466 if (flist->files[i]->dirname &&
1467 !flist->files[i]->dirname[0]) {
1468 flist->files[i]->dirname = NULL;
1474 static void output_flist(struct file_list *flist)
1476 char uidbuf[16], gidbuf[16];
1477 struct file_struct *file;
1480 for (i = 0; i < flist->count; i++) {
1481 file = flist->files[i];
1482 if (am_root && preserve_uid)
1483 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1486 if (preserve_gid && file->gid != GID_NONE)
1487 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1490 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1491 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1492 NS(file->basename), (int) file->mode,
1493 (double) file->length, uidbuf, gidbuf);
1498 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1500 /* Compare the names of two file_struct entities, just like strcmp()
1501 * would do if it were operating on the joined strings. We assume
1502 * that there are no 0-length strings.
1504 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1507 const uchar *c1, *c2;
1508 enum fnc_state state1, state2;
1510 if (!f1 || !f1->basename) {
1511 if (!f2 || !f2->basename)
1515 if (!f2 || !f2->basename)
1518 if (!(c1 = (uchar*)f1->dirname)) {
1520 c1 = (uchar*)f1->basename;
1526 if (!(c2 = (uchar*)f2->dirname)) {
1528 c2 = (uchar*)f2->basename;
1536 if ((dif = (int)*c1 - (int)*c2) != 0)
1546 c1 = (uchar*)f1->basename;
1560 c2 = (uchar*)f2->basename;
1574 /* Return a copy of the full filename of a flist entry, using the indicated
1575 * buffer. No size-checking is done because we checked the size when creating
1576 * the file_struct entry.
1578 char *f_name_to(struct file_struct *f, char *fbuf)
1580 if (!f || !f->basename)
1584 int len = strlen(f->dirname);
1585 memcpy(fbuf, f->dirname, len);
1587 strcpy(fbuf + len + 1, f->basename);
1589 strcpy(fbuf, f->basename);
1594 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1596 char *f_name(struct file_struct *f)
1598 static char names[5][MAXPATHLEN];
1599 static unsigned int n;
1601 n = (n + 1) % (sizeof names / sizeof names[0]);
1603 return f_name_to(f, names[n]);