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;
36 extern int always_checksum;
38 extern int ignore_errors;
39 extern int numeric_ids;
41 extern int cvs_exclude;
44 extern char curr_dir[MAXPATHLEN];
45 extern char *files_from;
46 extern int filesfrom_fd;
48 extern int one_file_system;
49 extern int preserve_links;
50 extern int preserve_hard_links;
51 extern int preserve_perms;
52 extern int preserve_devices;
53 extern int preserve_uid;
54 extern int preserve_gid;
55 extern int preserve_times;
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_struct **exclude_list;
67 extern struct exclude_struct **server_exclude_list;
68 extern struct exclude_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)
213 #if 0 /* This currently never happens, so avoid a useless compare. */
214 if (exclude_level == NO_EXCLUDES)
218 /* never exclude '.', even if somebody does --exclude '*' */
219 if (fname[0] == '.' && !fname[1])
221 /* Handle the -R version of the '.' dir. */
222 if (fname[0] == '/') {
223 int len = strlen(fname);
224 if (fname[len-1] == '.' && fname[len-2] == '/')
228 if (server_exclude_list
229 && check_exclude(server_exclude_list, fname, is_dir))
231 if (exclude_level != ALL_EXCLUDES)
233 if (exclude_list && check_exclude(exclude_list, fname, is_dir))
235 if (local_exclude_list
236 && check_exclude(local_exclude_list, fname, is_dir))
241 /* used by the one_file_system code */
242 static dev_t filesystem_dev;
244 static void set_filesystem(char *fname)
247 if (link_stat(fname, &st) != 0)
249 filesystem_dev = st.st_dev;
253 static int to_wire_mode(mode_t mode)
256 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
257 return (mode & ~(_S_IFMT)) | 0120000;
262 static mode_t from_wire_mode(int mode)
264 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
265 return (mode & ~(_S_IFMT)) | _S_IFLNK;
266 return (mode_t) mode;
270 static void send_directory(int f, struct file_list *flist, char *dir);
272 static char *flist_dir;
273 static int flist_dir_len;
277 * Make sure @p flist is big enough to hold at least @p flist->count
280 void flist_expand(struct file_list *flist)
284 if (flist->count < flist->malloced)
287 if (flist->malloced < FLIST_START)
288 flist->malloced = FLIST_START;
289 else if (flist->malloced >= FLIST_LINEAR)
290 flist->malloced += FLIST_LINEAR;
292 flist->malloced *= 2;
295 * In case count jumped or we are starting the list
296 * with a known size just set it.
298 if (flist->malloced < flist->count)
299 flist->malloced = flist->count;
302 new_ptr = realloc_array(flist->files,
303 struct file_struct *, flist->malloced);
305 new_ptr = new_array(struct file_struct *, flist->malloced);
309 rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n",
311 (double) sizeof flist->files[0] * flist->malloced,
312 (new_ptr == flist->files) ? " not" : "");
315 flist->files = (struct file_struct **) new_ptr;
318 out_of_memory("flist_expand");
321 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
323 unsigned short flags;
324 static time_t modtime;
326 static DEV64_T rdev, rdev_high;
330 static char lastname[MAXPATHLEN];
331 char *fname, fbuf[MAXPATHLEN];
339 modtime = 0, mode = 0;
340 rdev = 0, rdev_high = 0, dev = 0;
346 io_write_phase = "send_file_entry";
348 fname = f_name_to(file, fbuf);
352 if (file->mode == mode)
353 flags |= XMIT_SAME_MODE;
356 if (preserve_devices) {
357 if (protocol_version < 28) {
358 if (IS_DEVICE(mode)) {
359 if (file->u.rdev == rdev) {
360 /* Set both flags to simplify the test
361 * when writing the data. */
362 flags |= XMIT_SAME_RDEV_pre28
363 | XMIT_SAME_HIGH_RDEV;
368 } else if (IS_DEVICE(mode)) {
369 if ((file->u.rdev & ~0xFF) == rdev_high)
370 flags |= XMIT_SAME_HIGH_RDEV;
373 rdev_high = rdev & ~0xFF;
377 if (file->uid == uid)
378 flags |= XMIT_SAME_UID;
381 if (file->gid == gid)
382 flags |= XMIT_SAME_GID;
385 if (file->modtime == modtime)
386 flags |= XMIT_SAME_TIME;
388 modtime = file->modtime;
390 #if SUPPORT_HARD_LINKS
391 if (file->link_u.idev) {
392 if (file->F_DEV == dev) {
393 if (protocol_version >= 28)
394 flags |= XMIT_SAME_DEV;
397 flags |= XMIT_HAS_IDEV_DATA;
402 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
404 l2 = strlen(fname+l1);
407 flags |= XMIT_SAME_NAME;
409 flags |= XMIT_LONG_NAME;
411 /* We must make sure we don't send a zero flag byte or the
412 * other end will terminate the flist transfer. Note that
413 * the use of XMIT_TOP_DIR on a non-dir has no meaning, so
414 * it's harmless way to add a bit to the first flag byte. */
415 if (protocol_version >= 28) {
416 if (!flags && !S_ISDIR(mode))
417 flags |= XMIT_TOP_DIR;
418 if ((flags & 0xFF00) || !flags) {
419 flags |= XMIT_EXTENDED_FLAGS;
420 write_byte(f, flags);
421 write_byte(f, flags >> 8);
423 write_byte(f, flags);
425 if (!(flags & 0xFF) && !S_ISDIR(mode))
426 flags |= XMIT_TOP_DIR;
428 flags |= XMIT_LONG_NAME;
429 write_byte(f, flags);
431 if (flags & XMIT_SAME_NAME)
433 if (flags & XMIT_LONG_NAME)
437 write_buf(f, fname + l1, l2);
439 write_longint(f, file->length);
440 if (!(flags & XMIT_SAME_TIME))
441 write_int(f, modtime);
442 if (!(flags & XMIT_SAME_MODE))
443 write_int(f, to_wire_mode(mode));
444 if (preserve_uid && !(flags & XMIT_SAME_UID)) {
449 if (preserve_gid && !(flags & XMIT_SAME_GID)) {
454 if (preserve_devices && IS_DEVICE(mode)) {
455 /* If XMIT_SAME_HIGH_RDEV is off, XMIT_SAME_RDEV_pre28 is
457 if (!(flags & XMIT_SAME_HIGH_RDEV))
459 else if (protocol_version >= 28)
464 if (preserve_links && S_ISLNK(mode)) {
465 int len = strlen(file->u.link);
467 write_buf(f, file->u.link, len);
471 #if SUPPORT_HARD_LINKS
472 if (flags & XMIT_HAS_IDEV_DATA) {
473 if (protocol_version < 26) {
474 /* 32-bit dev_t and ino_t */
476 write_int(f, file->F_INODE);
478 /* 64-bit dev_t and ino_t */
479 if (!(flags & XMIT_SAME_DEV))
480 write_longint(f, dev);
481 write_longint(f, file->F_INODE);
486 if (always_checksum) {
490 else if (protocol_version < 28) {
491 /* Prior to 28, we sent a useless set of nulls. */
497 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
501 strlcpy(lastname, fname, MAXPATHLEN);
503 io_write_phase = "unknown";
508 void receive_file_entry(struct file_struct **fptr, unsigned short flags,
509 struct file_list *flist, int f)
511 static time_t modtime;
513 static DEV64_T rdev, rdev_high;
517 static char lastname[MAXPATHLEN], *lastdir;
518 static int lastdir_len = -1;
519 char thisname[MAXPATHLEN];
520 unsigned int l1 = 0, l2 = 0;
521 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
523 char *basename, *dirname, *bp;
524 struct file_struct *file;
527 modtime = 0, mode = 0;
528 rdev = 0, rdev_high = 0, dev = 0;
534 if (flags & XMIT_SAME_NAME)
537 if (flags & XMIT_LONG_NAME)
542 if (l2 >= MAXPATHLEN - l1) {
544 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
545 flags, l1, l2, lastname);
546 overflow("receive_file_entry");
549 strlcpy(thisname, lastname, l1 + 1);
550 read_sbuf(f, &thisname[l1], l2);
551 thisname[l1 + l2] = 0;
553 strlcpy(lastname, thisname, MAXPATHLEN);
555 clean_fname(thisname);
558 sanitize_path(thisname, NULL);
560 if ((basename = strrchr(thisname, '/')) != NULL) {
561 dirname_len = ++basename - thisname; /* counts future '\0' */
562 if (lastdir_len == dirname_len - 1
563 && strncmp(thisname, lastdir, lastdir_len) == 0) {
565 dirname_len = 0; /* indicates no copy is needed */
573 basename_len = strlen(basename) + 1; /* count the '\0' */
575 file_length = read_longint(f);
576 if (!(flags & XMIT_SAME_TIME))
577 modtime = (time_t)read_int(f);
578 if (!(flags & XMIT_SAME_MODE))
579 mode = from_wire_mode(read_int(f));
581 if (preserve_uid && !(flags & XMIT_SAME_UID))
582 uid = (uid_t)read_int(f);
583 if (preserve_gid && !(flags & XMIT_SAME_GID))
584 gid = (gid_t)read_int(f);
586 if (preserve_devices) {
587 if (protocol_version < 28) {
588 if (IS_DEVICE(mode)) {
589 if (!(flags & XMIT_SAME_RDEV_pre28))
590 rdev = (DEV64_T)read_int(f);
593 } else if (IS_DEVICE(mode)) {
594 if (!(flags & XMIT_SAME_HIGH_RDEV)) {
595 rdev = (DEV64_T)read_int(f);
596 rdev_high = rdev & ~0xFF;
598 rdev = rdev_high | (DEV64_T)read_byte(f);
603 if (preserve_links && S_ISLNK(mode)) {
604 linkname_len = read_int(f) + 1; /* count the '\0' */
605 if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
606 rprintf(FERROR, "overflow: linkname_len=%d\n",
608 overflow("receive_file_entry");
615 sum_len = always_checksum && S_ISREG(mode) ? MD4_SUM_LENGTH : 0;
617 alloc_len = file_struct_len + dirname_len + basename_len
618 + linkname_len + sum_len;
619 bp = pool_alloc(flist->file_pool, alloc_len, "receive_file_entry");
621 file = *fptr = (struct file_struct *)bp;
622 memset(bp, 0, file_struct_len);
623 bp += file_struct_len;
625 file->flags = flags & XMIT_TOP_DIR ? FLAG_TOP_DIR : 0;
626 file->modtime = modtime;
627 file->length = file_length;
633 file->dirname = lastdir = bp;
634 lastdir_len = dirname_len - 1;
635 memcpy(bp, dirname, dirname_len - 1);
639 file->dirname = dirname;
642 memcpy(bp, basename, basename_len);
645 if (preserve_devices && IS_DEVICE(mode))
651 read_sbuf(f, bp, linkname_len - 1);
653 sanitize_path(bp, lastdir);
658 #if SUPPORT_HARD_LINKS
659 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
660 flags |= XMIT_HAS_IDEV_DATA;
661 if (flags & XMIT_HAS_IDEV_DATA) {
663 if (protocol_version < 26) {
667 if (!(flags & XMIT_SAME_DEV))
668 dev = read_longint(f);
669 inode = read_longint(f);
671 if (flist->hlink_pool) {
672 file->link_u.idev = pool_talloc(flist->hlink_pool,
673 struct idev, 1, "inode_table");
674 file->F_INODE = inode;
680 if (always_checksum) {
683 file->u.sum = sum = bp;
685 } else if (protocol_version < 28) {
686 /* Prior to 28, we get a useless set of nulls. */
692 protocol_version < 21 ? 2 : MD4_SUM_LENGTH);
696 if (!preserve_perms) {
697 extern int orig_umask;
698 /* set an appropriate set of permissions based on original
699 * permissions and umask. This emulates what GNU cp does */
700 file->mode &= ~orig_umask;
706 * Create a file_struct for a named file by reading its stat()
707 * information and performing extensive checks against global
710 * @return the new file, or NULL if there was an error or this file
711 * should be excluded.
713 * @todo There is a small optimization opportunity here to avoid
714 * stat()ing the file in some circumstances, which has a certain cost.
715 * We are called immediately after doing readdir(), and so we may
716 * already know the d_type of the file. We could for example avoid
717 * statting directories if we're not recursing, but this is not a very
718 * important case. Some systems may not have d_type.
720 struct file_struct *make_file(char *fname,
721 struct file_list *flist, int exclude_level)
723 static char *lastdir;
724 static int lastdir_len = -1;
725 struct file_struct *file;
727 char sum[SUM_LENGTH];
728 char thisname[MAXPATHLEN];
729 char linkname[MAXPATHLEN];
730 int alloc_len, basename_len, dirname_len, linkname_len, sum_len;
731 char *basename, *dirname, *bp;
732 unsigned short flags = 0;
734 if (!flist) /* lastdir isn't valid if flist is NULL */
737 if (strlcpy(thisname, fname, sizeof thisname)
738 >= sizeof thisname - flist_dir_len) {
739 rprintf(FINFO, "skipping overly long name: %s\n", fname);
742 clean_fname(thisname);
744 sanitize_path(thisname, NULL);
746 memset(sum, 0, SUM_LENGTH);
748 if (readlink_stat(thisname, &st, linkname) != 0) {
749 int save_errno = errno;
750 if (errno == ENOENT && exclude_level != NO_EXCLUDES) {
751 /* either symlink pointing nowhere or file that
752 * was removed during rsync run; see if excluded
753 * before reporting an error */
754 if (check_exclude_file(thisname, 0, exclude_level)) {
755 /* file is excluded anyway, ignore silently */
759 io_error |= IOERR_GENERAL;
760 rprintf(FERROR, "readlink %s failed: %s\n",
761 full_fname(thisname), strerror(save_errno));
765 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
766 if (exclude_level == NO_EXCLUDES)
769 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
770 rprintf(FINFO, "skipping directory %s\n", thisname);
774 /* We only care about directories because we need to avoid recursing
775 * into a mount-point directory, not to avoid copying a symlinked
776 * file if -L (or similar) was specified. */
777 if (one_file_system && st.st_dev != filesystem_dev
778 && S_ISDIR(st.st_mode))
779 flags |= FLAG_MOUNT_POINT;
781 if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level))
784 if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0)
790 rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
791 who_am_i(), thisname, exclude_level);
794 if ((basename = strrchr(thisname, '/')) != NULL) {
795 dirname_len = ++basename - thisname; /* counts future '\0' */
796 if (lastdir_len == dirname_len - 1
797 && strncmp(thisname, lastdir, lastdir_len) == 0) {
799 dirname_len = 0; /* indicates no copy is needed */
807 basename_len = strlen(basename) + 1; /* count the '\0' */
810 linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
815 sum_len = always_checksum && S_ISREG(st.st_mode) ? MD4_SUM_LENGTH : 0;
817 alloc_len = file_struct_len + dirname_len + basename_len
818 + linkname_len + sum_len;
820 bp = pool_alloc(flist->file_pool, alloc_len,
821 "receive_file_entry");
823 if (!(bp = new_array(char, alloc_len)))
824 out_of_memory("receive_file_entry");
827 file = (struct file_struct *)bp;
828 memset(bp, 0, file_struct_len);
829 bp += file_struct_len;
832 file->modtime = st.st_mtime;
833 file->length = st.st_size;
834 file->mode = st.st_mode;
835 file->uid = st.st_uid;
836 file->gid = st.st_gid;
838 #if SUPPORT_HARD_LINKS
839 if (flist && flist->hlink_pool) {
840 if (protocol_version < 28) {
841 if (S_ISREG(st.st_mode))
842 file->link_u.idev = pool_talloc(
843 flist->hlink_pool, struct idev, 1,
846 if (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
847 file->link_u.idev = pool_talloc(
848 flist->hlink_pool, struct idev, 1,
852 if (file->link_u.idev) {
853 file->F_DEV = st.st_dev;
854 file->F_INODE = st.st_ino;
859 file->dirname = lastdir = bp;
860 lastdir_len = dirname_len - 1;
861 memcpy(bp, dirname, dirname_len - 1);
865 file->dirname = dirname;
868 memcpy(bp, basename, basename_len);
871 #ifdef HAVE_STRUCT_STAT_ST_RDEV
872 if (preserve_devices && IS_DEVICE(st.st_mode))
873 file->u.rdev = st.st_rdev;
879 memcpy(bp, linkname, linkname_len);
886 file_checksum(thisname, bp, st.st_size);
890 file->basedir = flist_dir;
892 if (!S_ISDIR(st.st_mode))
893 stats.total_size += st.st_size;
899 void send_file_name(int f, struct file_list *flist, char *fname,
900 int recursive, unsigned short base_flags)
902 struct file_struct *file;
903 char fbuf[MAXPATHLEN];
904 extern int delete_excluded;
906 /* f is set to -1 when calculating deletion file list */
907 file = make_file(fname, flist,
908 f == -1 && delete_excluded? SERVER_EXCLUDES : ALL_EXCLUDES);
913 maybe_emit_filelist_progress(flist);
918 file->flags |= FLAG_TOP_DIR;
920 if (file->basename[0]) {
921 flist->files[flist->count++] = file;
922 send_file_entry(file, f, base_flags);
925 if (recursive && S_ISDIR(file->mode)
926 && !(file->flags & FLAG_MOUNT_POINT)) {
927 struct exclude_struct **last_exclude_list = local_exclude_list;
928 send_directory(f, flist, f_name_to(file, fbuf));
929 local_exclude_list = last_exclude_list;
935 static void send_directory(int f, struct file_list *flist, char *dir)
939 char fname[MAXPATHLEN];
945 io_error |= IOERR_GENERAL;
946 rprintf(FERROR, "opendir %s failed: %s\n",
947 full_fname(dir), strerror(errno));
951 offset = strlcpy(fname, dir, MAXPATHLEN);
953 if (offset >= MAXPATHLEN || p[-1] != '/') {
954 if (offset >= MAXPATHLEN - 1) {
955 io_error |= IOERR_GENERAL;
956 rprintf(FERROR, "skipping long-named directory: %s\n",
965 local_exclude_list = NULL;
968 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
969 < MAXPATHLEN - offset)
970 add_exclude_file(&local_exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
972 io_error |= IOERR_GENERAL;
974 "cannot cvs-exclude in long-named directory %s\n",
979 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
980 char *dname = d_name(di);
981 if (dname[0] == '.' && (dname[1] == '\0'
982 || (dname[1] == '.' && dname[2] == '\0')))
984 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
985 send_file_name(f, flist, fname, recurse, 0);
987 io_error |= IOERR_GENERAL;
989 "cannot send long-named file %s\n",
994 io_error |= IOERR_GENERAL;
995 rprintf(FERROR, "readdir(%s): (%d) %s\n",
996 dir, errno, strerror(errno));
999 if (local_exclude_list)
1000 free_exclude_list(&local_exclude_list); /* Zeros pointer too */
1007 * The delete_files() function in receiver.c sets f to -1 so that we just
1008 * construct the file list in memory without sending it over the wire. It
1009 * also has the side-effect of ignoring user-excludes if delete_excluded
1010 * is set (so that the delete list includes user-excluded files).
1012 struct file_list *send_file_list(int f, int argc, char *argv[])
1016 char *p, *dir, olddir[sizeof curr_dir];
1017 char lastpath[MAXPATHLEN] = "";
1018 struct file_list *flist;
1022 if (show_filelist_p() && f != -1)
1023 start_filelist_progress("building file list");
1025 start_write = stats.total_written;
1027 flist = flist_new(f == -1 ? WITHOUT_HLINK : WITH_HLINK,
1031 io_start_buffering_out(f);
1032 if (filesfrom_fd >= 0) {
1033 if (argv[0] && !push_dir(argv[0])) {
1034 rprintf(FERROR, "push_dir %s failed: %s\n",
1035 full_fname(argv[0]), strerror(errno));
1036 exit_cleanup(RERR_FILESELECT);
1043 char fname2[MAXPATHLEN];
1044 char *fname = fname2;
1047 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1049 sanitize_path(fname, NULL);
1053 strlcpy(fname, *argv++, MAXPATHLEN);
1055 sanitize_path(fname, NULL);
1059 if (fname[l - 1] == '/') {
1060 if (l == 2 && fname[0] == '.') {
1061 /* Turn "./" into just "." rather than "./." */
1063 } else if (l < MAXPATHLEN) {
1069 if (link_stat(fname, &st) != 0) {
1071 io_error |= IOERR_GENERAL;
1072 rprintf(FERROR, "link_stat %s failed: %s\n",
1073 full_fname(fname), strerror(errno));
1078 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1079 rprintf(FINFO, "skipping directory %s\n", fname);
1086 if (!relative_paths) {
1087 p = strrchr(fname, '/');
1096 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1097 /* this ensures we send the intermediate directories,
1098 thus getting their permissions right */
1099 char *lp = lastpath, *fn = fname, *slash = fname;
1101 /* Skip any initial directories in our path that we
1102 * have in common with lastpath. */
1103 while (*fn && *lp == *fn) {
1109 if (fn != p || (*lp && *lp != '/')) {
1110 int copy_links_saved = copy_links;
1111 int recurse_saved = recurse;
1112 copy_links = copy_unsafe_links;
1113 /* set recurse to 1 to prevent make_file
1114 * from ignoring directory, but still
1115 * turn off the recursive parameter to
1118 while ((slash = strchr(slash+1, '/')) != 0) {
1120 send_file_name(f, flist, fname, 0, 0);
1123 copy_links = copy_links_saved;
1124 recurse = recurse_saved;
1126 strlcpy(lastpath, fname, sizeof lastpath);
1135 static char *lastdir;
1136 static int lastdir_len;
1138 strcpy(olddir, curr_dir); /* can't overflow */
1140 if (!push_dir(dir)) {
1141 io_error |= IOERR_GENERAL;
1142 rprintf(FERROR, "push_dir %s failed: %s\n",
1143 full_fname(dir), strerror(errno));
1147 if (lastdir && strcmp(lastdir, dir) == 0) {
1148 flist_dir = lastdir;
1149 flist_dir_len = lastdir_len;
1151 flist_dir = lastdir = strdup(dir);
1152 flist_dir_len = lastdir_len = strlen(dir);
1156 if (one_file_system)
1157 set_filesystem(fname);
1159 send_file_name(f, flist, fname, recurse, XMIT_TOP_DIR);
1164 if (!pop_dir(olddir)) {
1165 rprintf(FERROR, "pop_dir %s failed: %s\n",
1166 full_fname(dir), strerror(errno));
1167 exit_cleanup(RERR_FILESELECT);
1173 send_file_entry(NULL, f, 0);
1175 if (show_filelist_p())
1176 finish_filelist_progress(flist);
1179 if (flist->hlink_pool) {
1180 pool_destroy(flist->hlink_pool);
1181 flist->hlink_pool = NULL;
1184 clean_flist(flist, 0, 0);
1187 /* Now send the uid/gid list. This was introduced in
1188 * protocol version 15 */
1191 /* send the io_error flag */
1192 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1195 stats.flist_size = stats.total_written - start_write;
1196 stats.num_files = flist->count;
1198 write_batch_flist_info(flist->count, flist->files);
1202 output_flist(flist);
1205 rprintf(FINFO, "send_file_list done\n");
1211 struct file_list *recv_file_list(int f)
1213 struct file_list *flist;
1214 unsigned short flags;
1216 extern int list_only;
1218 if (show_filelist_p())
1219 start_filelist_progress("receiving file list");
1221 start_read = stats.total_read;
1223 flist = flist_new(WITH_HLINK, "recv_file_list");
1226 flist->malloced = 1000;
1227 flist->files = new_array(struct file_struct *, flist->malloced);
1232 while ((flags = read_byte(f)) != 0) {
1233 int i = flist->count;
1235 flist_expand(flist);
1237 if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
1238 flags |= read_byte(f) << 8;
1239 receive_file_entry(&flist->files[i], flags, flist, f);
1241 if (S_ISREG(flist->files[i]->mode))
1242 stats.total_size += flist->files[i]->length;
1246 maybe_emit_filelist_progress(flist);
1249 rprintf(FINFO, "recv_file_name(%s)\n",
1250 f_name(flist->files[i]));
1253 receive_file_entry(NULL, 0, NULL, 0); /* Signal that we're done. */
1256 rprintf(FINFO, "received %d names\n", flist->count);
1258 if (show_filelist_p())
1259 finish_filelist_progress(flist);
1261 clean_flist(flist, relative_paths, 1);
1264 /* Now send the uid/gid list. This was introduced in
1265 * protocol version 15 */
1266 recv_uid_list(f, flist);
1269 /* Recv the io_error flag */
1270 if (lp_ignore_errors(module_id) || ignore_errors)
1273 io_error |= read_int(f);
1278 output_flist(flist);
1282 for (i = 0; i < flist->count; i++)
1283 list_file_entry(flist->files[i]);
1287 rprintf(FINFO, "recv_file_list done\n");
1289 stats.flist_size = stats.total_read - start_read;
1290 stats.num_files = flist->count;
1295 out_of_memory("recv_file_list");
1296 return NULL; /* not reached */
1300 int file_compare(struct file_struct **file1, struct file_struct **file2)
1302 struct file_struct *f1 = *file1;
1303 struct file_struct *f2 = *file2;
1305 if (!f1->basename && !f2->basename)
1311 if (f1->dirname == f2->dirname)
1312 return u_strcmp(f1->basename, f2->basename);
1313 return f_name_cmp(f1, f2);
1317 int flist_find(struct file_list *flist, struct file_struct *f)
1319 int low = 0, high = flist->count - 1;
1321 while (high >= 0 && !flist->files[high]->basename) high--;
1326 while (low != high) {
1327 int mid = (low + high) / 2;
1328 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1330 return flist_up(flist, mid);
1337 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1338 return flist_up(flist, low);
1343 * Free up any resources a file_struct has allocated
1344 * and clear the file.
1346 void clear_file(int i, struct file_list *flist)
1348 if (flist->hlink_pool && flist->files[i]->link_u.idev)
1349 pool_free(flist->hlink_pool, 0, flist->files[i]->link_u.idev);
1350 memset(flist->files[i], 0, file_struct_len);
1355 * allocate a new file list
1357 struct file_list *flist_new(int with_hlink, char *msg)
1359 struct file_list *flist;
1361 flist = new(struct file_list);
1365 memset(flist, 0, sizeof (struct file_list));
1367 if (!(flist->file_pool = pool_create(FILE_EXTENT, 0,
1368 out_of_memory, POOL_INTERN)))
1371 #if SUPPORT_HARD_LINKS
1372 if (with_hlink && preserve_hard_links) {
1373 if (!(flist->hlink_pool = pool_create(HLINK_EXTENT,
1374 sizeof (struct idev), out_of_memory, POOL_INTERN)))
1383 * free up all elements in a flist
1385 void flist_free(struct file_list *flist)
1387 pool_destroy(flist->file_pool);
1388 pool_destroy(flist->hlink_pool);
1395 * This routine ensures we don't have any duplicate names in our file list.
1396 * duplicate names can cause corruption because of the pipelining
1398 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1402 if (!flist || flist->count == 0)
1405 qsort(flist->files, flist->count,
1406 sizeof flist->files[0], (int (*)()) file_compare);
1408 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1409 if (flist->files[i]->basename) {
1414 while (++i < flist->count) {
1415 if (!flist->files[i]->basename)
1417 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1418 if (verbose > 1 && !am_server) {
1420 "removing duplicate name %s from file list %d\n",
1421 f_name(flist->files[i]), i);
1423 /* Make sure that if we unduplicate '.', that we don't
1424 * lose track of a user-specified starting point (or
1425 * else deletions will mysteriously fail with -R). */
1426 if (flist->files[i]->flags & FLAG_TOP_DIR)
1427 flist->files[prev_i]->flags |= FLAG_TOP_DIR;
1429 clear_file(i, flist);
1435 /* we need to strip off the root directory in the case
1436 of relative paths, but this must be done _after_
1437 the sorting phase */
1438 for (i = 0; i < flist->count; i++) {
1439 if (flist->files[i]->dirname &&
1440 flist->files[i]->dirname[0] == '/') {
1441 memmove(&flist->files[i]->dirname[0],
1442 &flist->files[i]->dirname[1],
1443 strlen(flist->files[i]->dirname));
1446 if (flist->files[i]->dirname &&
1447 !flist->files[i]->dirname[0]) {
1448 flist->files[i]->dirname = NULL;
1454 static void output_flist(struct file_list *flist)
1456 char uidbuf[16], gidbuf[16];
1457 struct file_struct *file;
1460 for (i = 0; i < flist->count; i++) {
1461 file = flist->files[i];
1462 if (am_root && preserve_uid)
1463 sprintf(uidbuf, " uid=%ld", (long)file->uid);
1466 if (preserve_gid && file->gid != GID_NONE)
1467 sprintf(gidbuf, " gid=%ld", (long)file->gid);
1470 rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n",
1471 who_am_i(), i, NS(file->basedir), NS(file->dirname),
1472 NS(file->basename), (int) file->mode,
1473 (double) file->length, uidbuf, gidbuf);
1478 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1480 /* Compare the names of two file_struct entities, just like strcmp()
1481 * would do if it were operating on the joined strings. We assume
1482 * that there are no 0-length strings.
1484 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1487 const uchar *c1, *c2;
1488 enum fnc_state state1, state2;
1490 if (!f1 || !f1->basename) {
1491 if (!f2 || !f2->basename)
1495 if (!f2 || !f2->basename)
1498 if (!(c1 = (uchar*)f1->dirname)) {
1500 c1 = (uchar*)f1->basename;
1503 if (!(c2 = (uchar*)f2->dirname)) {
1505 c2 = (uchar*)f2->basename;
1510 if ((dif = (int)*c1 - (int)*c2) != 0)
1520 c1 = (uchar*)f1->basename;
1534 c2 = (uchar*)f2->basename;
1548 /* Return a copy of the full filename of a flist entry, using the indicated
1549 * buffer. No size-checking is done because we checked the size when creating
1550 * the file_struct entry.
1552 char *f_name_to(struct file_struct *f, char *fbuf)
1554 if (!f || !f->basename)
1558 int len = strlen(f->dirname);
1559 memcpy(fbuf, f->dirname, len);
1561 strcpy(fbuf + len + 1, f->basename);
1563 strcpy(fbuf, f->basename);
1568 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1570 char *f_name(struct file_struct *f)
1572 static char names[5][MAXPATHLEN];
1573 static unsigned int n;
1575 n = (n + 1) % (sizeof names / sizeof names[0]);
1577 return f_name_to(f, names[n]);