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 * @todo Get rid of the string_area optimization. Efficiently
25 * allocating blocks is the responsibility of the system's malloc
26 * library, not of rsync.
28 * @sa http://lists.samba.org/pipermail/rsync/2000-June/002351.html
34 extern struct stats stats;
37 extern int do_progress;
39 extern int always_checksum;
41 extern int ignore_errors;
43 extern int cvs_exclude;
46 extern char curr_dir[MAXPATHLEN];
47 extern char *files_from;
48 extern int filesfrom_fd;
50 extern int one_file_system;
51 extern int make_backups;
52 extern int preserve_links;
53 extern int preserve_hard_links;
54 extern int preserve_perms;
55 extern int preserve_devices;
56 extern int preserve_uid;
57 extern int preserve_gid;
58 extern int preserve_times;
59 extern int relative_paths;
60 extern int implied_dirs;
61 extern int copy_links;
62 extern int copy_unsafe_links;
63 extern int protocol_version;
64 extern int sanitize_paths;
66 extern int read_batch;
67 extern int write_batch;
69 extern struct exclude_struct **exclude_list;
70 extern struct exclude_struct **server_exclude_list;
71 extern struct exclude_struct **local_exclude_list;
75 static struct file_struct null_file;
76 static char empty_sum[MD4_SUM_LENGTH];
78 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
81 static int show_filelist_p(void)
83 return verbose && (recurse || files_from) && !am_server;
86 static void start_filelist_progress(char *kind)
88 rprintf(FINFO, "%s ... ", kind);
89 if ((verbose > 1) || do_progress)
95 static void emit_filelist_progress(const struct file_list *flist)
97 rprintf(FINFO, " %d files...\r", flist->count);
101 static void maybe_emit_filelist_progress(const struct file_list *flist)
103 if (do_progress && show_filelist_p() && ((flist->count % 100) == 0))
104 emit_filelist_progress(flist);
108 static void finish_filelist_progress(const struct file_list *flist)
111 /* This overwrites the progress line */
112 rprintf(FINFO, "%d file%sto consider\n",
113 flist->count, flist->count == 1 ? " " : "s ");
115 rprintf(FINFO, "done\n");
118 void show_flist_stats(void)
124 static struct string_area *string_area_new(int size)
126 struct string_area *a;
130 a = new(struct string_area);
132 out_of_memory("string_area_new");
133 a->current = a->base = new_array(char, size);
135 out_of_memory("string_area_new buffer");
136 a->end = a->base + size;
142 static void string_area_free(struct string_area *a)
144 struct string_area *next;
146 for (; a; a = next) {
152 static char *string_area_malloc(struct string_area **ap, int size)
155 struct string_area *a;
157 /* does the request fit into the current space? */
159 if (a->current + size >= a->end) {
160 /* no; get space, move new string_area to front of the list */
161 a = string_area_new(size > ARENA_SIZE ? size : ARENA_SIZE);
166 /* have space; do the "allocation." */
172 static char *string_area_strdup(struct string_area **ap, const char *src)
174 char *dest = string_area_malloc(ap, strlen(src) + 1);
175 return strcpy(dest, src);
178 static void list_file_entry(struct file_struct *f)
183 /* this can happen if duplicate names were removed */
186 permstring(perms, f->mode);
188 if (preserve_links && S_ISLNK(f->mode)) {
189 rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
191 (double) f->length, timestring(f->modtime),
192 f_name(f), f->u.link);
194 rprintf(FINFO, "%s %11.0f %s %s\n",
196 (double) f->length, timestring(f->modtime),
203 * Stat either a symlink or its referent, depending on the settings of
204 * copy_links, copy_unsafe_links, etc.
206 * @retval -1 on error
208 * @retval 0 for success
210 * @post If @p path is a symlink, then @p linkbuf (of size @c
211 * MAXPATHLEN) contains the symlink target.
213 * @post @p buffer contains information about the link or the
214 * referrent as appropriate, if they exist.
216 int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf)
220 return do_stat(path, buffer);
221 if (do_lstat(path, buffer) == -1)
223 if (S_ISLNK(buffer->st_mode)) {
224 int l = readlink((char *) path, linkbuf, MAXPATHLEN - 1);
228 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
230 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
233 return do_stat(path, buffer);
238 return do_stat(path, buffer);
242 int link_stat(const char *path, STRUCT_STAT * buffer)
246 return do_stat(path, buffer);
247 return do_lstat(path, buffer);
249 return do_stat(path, buffer);
254 * This function is used to check if a file should be included/excluded
255 * from the list of files based on its name and type etc. The value of
256 * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
258 static int check_exclude_file(char *fname, int is_dir, int exclude_level)
260 #if 0 /* This currently never happens, so avoid a useless compare. */
261 if (exclude_level == NO_EXCLUDES)
265 /* never exclude '.', even if somebody does --exclude '*' */
266 if (fname[0] == '.' && !fname[1])
268 /* Handle the -R version of the '.' dir. */
269 if (fname[0] == '/') {
270 int len = strlen(fname);
271 if (fname[len-1] == '.' && fname[len-2] == '/')
275 if (server_exclude_list
276 && check_exclude(server_exclude_list, fname, is_dir))
278 if (exclude_level != ALL_EXCLUDES)
280 if (exclude_list && check_exclude(exclude_list, fname, is_dir))
282 if (local_exclude_list
283 && check_exclude(local_exclude_list, fname, is_dir))
288 /* used by the one_file_system code */
289 static dev_t filesystem_dev;
291 static void set_filesystem(char *fname)
294 if (link_stat(fname, &st) != 0)
297 filesystem_dev = st.st_dev;
301 static int to_wire_mode(mode_t mode)
303 if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
304 return (mode & ~(_S_IFMT)) | 0120000;
308 static mode_t from_wire_mode(int mode)
310 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
311 return (mode & ~(_S_IFMT)) | _S_IFLNK;
312 return (mode_t) mode;
316 static void send_directory(int f, struct file_list *flist, char *dir);
318 static char *flist_dir;
319 static int flist_dir_len;
323 * Make sure @p flist is big enough to hold at least @p flist->count
326 static void flist_expand(struct file_list *flist)
328 if (flist->count >= flist->malloced) {
331 if (flist->malloced < 1000)
332 flist->malloced += 1000;
334 flist->malloced *= 2;
337 new_ptr = realloc_array(flist->files,
338 struct file_struct *,
341 new_ptr = new_array(struct file_struct *,
346 rprintf(FINFO, "expand file_list to %.0f bytes, did%s move\n",
347 (double)sizeof(flist->files[0])
349 (new_ptr == flist->files) ? " not" : "");
352 flist->files = (struct file_struct **) new_ptr;
355 out_of_memory("flist_expand");
359 void send_file_entry(struct file_struct *file, int f, unsigned short base_flags)
361 unsigned short flags;
362 static time_t modtime;
364 static DEV64_T rdev; /* just high bytes in p28 onward */
368 static char lastname[MAXPATHLEN];
369 char *fname, fbuf[MAXPATHLEN];
377 modtime = 0, mode = 0;
384 io_write_phase = "send_file_entry";
386 fname = f_name_to(file, fbuf);
390 if (file->mode == mode)
394 if (preserve_devices) {
395 if (protocol_version < 28) {
396 if (IS_DEVICE(mode)) {
397 if (file->u.rdev == rdev) {
398 /* Set both flags so that the test when
399 * writing the data is simpler. */
400 flags |= SAME_RDEV_pre28|SAME_HIGH_RDEV;
405 } else if (IS_DEVICE(mode)) {
406 if ((file->u.rdev & ~0xFF) == rdev)
407 flags |= SAME_HIGH_RDEV;
409 rdev = file->u.rdev & ~0xFF;
412 if (file->uid == uid)
416 if (file->gid == gid)
420 if (file->modtime == modtime)
423 modtime = file->modtime;
424 if (file->link_u.idev) {
425 if (file->F_DEV == dev) {
426 if (protocol_version >= 28)
430 flags |= HAS_INODE_DATA;
434 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
436 l2 = strlen(fname+l1);
443 /* We must make sure we don't send a zero flags byte or
444 * the other end will terminate the flist transfer. */
445 if (flags == 0 && !S_ISDIR(mode))
446 flags |= FLAG_DELETE; /* NOTE: no meaning for non-dir */
447 if (protocol_version >= 28) {
448 if ((flags & 0xFF00) || flags == 0) {
449 flags |= EXTENDED_FLAGS;
450 write_byte(f, flags);
451 write_byte(f, flags >> 8);
453 write_byte(f, flags);
457 write_byte(f, flags);
459 if (flags & SAME_NAME)
461 if (flags & LONG_NAME)
465 write_buf(f, fname + l1, l2);
467 write_longint(f, file->length);
468 if (!(flags & SAME_TIME))
469 write_int(f, modtime);
470 if (!(flags & SAME_MODE))
471 write_int(f, to_wire_mode(mode));
472 if (preserve_uid && !(flags & SAME_UID)) {
476 if (preserve_gid && !(flags & SAME_GID)) {
480 if (preserve_devices && IS_DEVICE(mode)) {
481 /* If SAME_HIGH_RDEV is off, SAME_RDEV_pre28 is also off.
482 * Also, avoid using "rdev" because it may be incomplete. */
483 if (!(flags & SAME_HIGH_RDEV))
484 write_int(f, file->u.rdev);
485 else if (protocol_version >= 28)
486 write_byte(f, file->u.rdev);
490 if (preserve_links && S_ISLNK(mode)) {
491 write_int(f, strlen(file->u.link));
492 write_buf(f, file->u.link, strlen(file->u.link));
496 #if SUPPORT_HARD_LINKS
497 if (flags & HAS_INODE_DATA) {
498 if (protocol_version < 26) {
499 /* 32-bit dev_t and ino_t */
501 write_int(f, file->F_INODE);
503 /* 64-bit dev_t and ino_t */
504 if (!(flags & SAME_DEV))
505 write_longint(f, dev);
506 write_longint(f, file->F_INODE);
511 if (always_checksum) {
515 else if (protocol_version < 28) {
516 /* Prior to 28, we sent a useless set of nulls. */
521 write_buf(f, sum, protocol_version < 21? 2
526 strlcpy(lastname, fname, MAXPATHLEN);
528 io_write_phase = "unknown";
533 void receive_file_entry(struct file_struct **fptr, unsigned short flags, int f)
535 static time_t modtime;
537 static DEV64_T rdev; /* just high bytes in p28 onward */
541 static char lastname[MAXPATHLEN];
542 char thisname[MAXPATHLEN];
543 unsigned int l1 = 0, l2 = 0;
545 struct file_struct *file;
548 modtime = 0, mode = 0;
555 if (flags & SAME_NAME)
558 if (flags & LONG_NAME)
563 file = new(struct file_struct);
565 out_of_memory("receive_file_entry");
566 memset((char *) file, 0, sizeof(*file));
569 if (l2 >= MAXPATHLEN - l1) {
571 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
572 flags, l1, l2, lastname);
573 overflow("receive_file_entry");
576 strlcpy(thisname, lastname, l1 + 1);
577 read_sbuf(f, &thisname[l1], l2);
578 thisname[l1 + l2] = 0;
580 strlcpy(lastname, thisname, MAXPATHLEN);
581 lastname[MAXPATHLEN - 1] = 0;
583 clean_fname(thisname);
585 if (sanitize_paths) {
586 sanitize_path(thisname, NULL);
589 if ((p = strrchr(thisname, '/'))) {
590 static char *lastdir;
592 if (lastdir && strcmp(thisname, lastdir) == 0)
593 file->dirname = lastdir;
595 file->dirname = strdup(thisname);
596 lastdir = file->dirname;
598 file->basename = strdup(p + 1);
600 file->dirname = NULL;
601 file->basename = strdup(thisname);
605 out_of_memory("receive_file_entry 1");
607 file->flags = flags & LIVE_FLAGS;
608 file->length = read_longint(f);
609 if (!(flags & SAME_TIME))
610 modtime = (time_t)read_int(f);
611 file->modtime = modtime;
612 if (!(flags & SAME_MODE))
613 mode = from_wire_mode(read_int(f));
617 if (!(flags & SAME_UID))
618 uid = (uid_t)read_int(f);
622 if (!(flags & SAME_GID))
623 gid = (gid_t)read_int(f);
626 if (preserve_devices) {
627 if (protocol_version < 28) {
628 if (IS_DEVICE(mode)) {
629 if (!(flags & SAME_RDEV_pre28))
630 rdev = (DEV64_T)read_int(f);
634 } else if (IS_DEVICE(mode)) {
635 if (!(flags & SAME_HIGH_RDEV)) {
636 file->u.rdev = (DEV64_T)read_int(f);
637 rdev = file->u.rdev & ~0xFF;
639 file->u.rdev = rdev | (DEV64_T)read_byte(f);
643 if (preserve_links && S_ISLNK(mode)) {
646 rprintf(FERROR, "overflow: l=%d\n", l);
647 overflow("receive_file_entry");
649 if (!(file->u.link = new_array(char, l + 1)))
650 out_of_memory("receive_file_entry 2");
651 read_sbuf(f, file->u.link, l);
653 sanitize_path(file->u.link, file->dirname);
655 #if SUPPORT_HARD_LINKS
656 if (preserve_hard_links && protocol_version < 28 && S_ISREG(mode))
657 flags |= HAS_INODE_DATA;
658 if (flags & HAS_INODE_DATA) {
659 if (!(file->link_u.idev = new(struct idev)))
660 out_of_memory("file inode data");
661 if (protocol_version < 26) {
663 file->F_INODE = read_int(f);
665 if (!(flags & SAME_DEV))
666 dev = read_longint(f);
667 file->F_INODE = read_longint(f);
673 if (always_checksum) {
676 sum = file->u.sum = new_array(char, MD4_SUM_LENGTH);
678 out_of_memory("md4 sum");
679 } else if (protocol_version < 28) {
680 /* Prior to 28, we get a useless set of nulls. */
685 read_buf(f, sum, protocol_version < 21? 2
690 if (!preserve_perms) {
691 extern int orig_umask;
692 /* set an appropriate set of permissions based on original
693 * permissions and umask. This emulates what GNU cp does */
694 file->mode &= ~orig_umask;
699 /* determine if a file in a different filesystem should be skipped
700 when one_file_system is set. We bascally only want to include
701 the mount points - but they can be hard to find! */
702 static int skip_filesystem(char *fname, STRUCT_STAT * st)
706 /* skip all but directories */
707 if (!S_ISDIR(st->st_mode))
710 /* if its not a subdirectory then allow */
711 if (!strrchr(fname, '/'))
714 if (link_stat(fname, &st2) != 0) {
718 return (st2.st_dev != filesystem_dev);
721 #define STRDUP(ap, p) (ap ? string_area_strdup(ap, p) : strdup(p))
722 /* IRIX cc cares that the operands to the ternary have the same type. */
723 #define MALLOC(ap, i) (ap ? (void*) string_area_malloc(ap, i) : malloc(i))
726 * Create a file_struct for a named file by reading its stat()
727 * information and performing extensive checks against global
730 * @return the new file, or NULL if there was an error or this file
731 * should be excluded.
733 * @todo There is a small optimization opportunity here to avoid
734 * stat()ing the file in some circumstances, which has a certain cost.
735 * We are called immediately after doing readdir(), and so we may
736 * already know the d_type of the file. We could for example avoid
737 * statting directories if we're not recursing, but this is not a very
738 * important case. Some systems may not have d_type.
740 struct file_struct *make_file(char *fname, struct string_area **ap,
743 struct file_struct *file;
745 char sum[SUM_LENGTH];
747 char cleaned_name[MAXPATHLEN];
748 char linkbuf[MAXPATHLEN];
750 if (strlcpy(cleaned_name, fname, sizeof cleaned_name)
751 >= sizeof cleaned_name - flist_dir_len) {
752 rprintf(FINFO, "skipping overly long name: %s\n", fname);
755 clean_fname(cleaned_name);
757 sanitize_path(cleaned_name, NULL);
758 fname = cleaned_name;
760 memset(sum, 0, SUM_LENGTH);
762 if (readlink_stat(fname, &st, linkbuf) != 0) {
763 int save_errno = errno;
764 if (errno == ENOENT && exclude_level != NO_EXCLUDES) {
765 /* either symlink pointing nowhere or file that
766 * was removed during rsync run; see if excluded
767 * before reporting an error */
768 if (check_exclude_file(fname, 0, exclude_level)) {
769 /* file is excluded anyway, ignore silently */
773 io_error |= IOERR_GENERAL;
774 rprintf(FERROR, "readlink %s failed: %s\n",
775 full_fname(fname), strerror(save_errno));
779 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
780 if (exclude_level == NO_EXCLUDES)
783 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
784 rprintf(FINFO, "skipping directory %s\n", fname);
788 if (one_file_system && st.st_dev != filesystem_dev) {
789 if (skip_filesystem(fname, &st))
793 if (check_exclude_file(fname, S_ISDIR(st.st_mode) != 0, exclude_level))
796 if (lp_ignore_nonreadable(module_id) && access(fname, R_OK) != 0)
802 rprintf(FINFO, "make_file(%s,*,%d)\n", fname, exclude_level);
804 file = new(struct file_struct);
806 out_of_memory("make_file");
807 memset((char *) file, 0, sizeof(*file));
809 if ((p = strrchr(fname, '/'))) {
810 static char *lastdir;
812 if (lastdir && strcmp(fname, lastdir) == 0)
813 file->dirname = lastdir;
815 file->dirname = strdup(fname);
816 lastdir = file->dirname;
818 file->basename = STRDUP(ap, p + 1);
821 file->dirname = NULL;
822 file->basename = STRDUP(ap, fname);
825 file->modtime = st.st_mtime;
826 file->length = st.st_size;
827 file->mode = st.st_mode;
828 file->uid = st.st_uid;
829 file->gid = st.st_gid;
830 if (preserve_hard_links) {
831 if (protocol_version < 28 ? S_ISREG(st.st_mode)
832 : !S_ISDIR(st.st_mode) && st.st_nlink > 1) {
833 if (!(file->link_u.idev = new(struct idev)))
834 out_of_memory("file inode data");
835 file->F_DEV = st.st_dev;
836 file->F_INODE = st.st_ino;
839 #ifdef HAVE_STRUCT_STAT_ST_RDEV
840 if (IS_DEVICE(st.st_mode))
841 file->u.rdev = st.st_rdev;
845 if (S_ISLNK(st.st_mode))
846 file->u.link = STRDUP(ap, linkbuf);
849 if (always_checksum && S_ISREG(st.st_mode)) {
850 if (!(file->u.sum = (char*)MALLOC(ap, MD4_SUM_LENGTH)))
851 out_of_memory("md4 sum");
852 file_checksum(fname, file->u.sum, st.st_size);
855 file->basedir = flist_dir;
857 if (!S_ISDIR(st.st_mode))
858 stats.total_size += st.st_size;
864 void send_file_name(int f, struct file_list *flist, char *fname,
865 int recursive, unsigned short base_flags)
867 struct file_struct *file;
868 char fbuf[MAXPATHLEN];
869 extern int delete_excluded;
871 /* f is set to -1 when calculating deletion file list */
872 file = make_file(fname, &flist->string_area,
873 f == -1 && delete_excluded? SERVER_EXCLUDES
879 maybe_emit_filelist_progress(flist);
884 file->flags |= FLAG_DELETE;
886 if (file->basename[0]) {
887 flist->files[flist->count++] = file;
888 send_file_entry(file, f, base_flags);
891 if (S_ISDIR(file->mode) && recursive) {
892 struct exclude_struct **last_exclude_list =
894 send_directory(f, flist, f_name_to(file, fbuf));
895 local_exclude_list = last_exclude_list;
901 static void send_directory(int f, struct file_list *flist, char *dir)
905 char fname[MAXPATHLEN];
911 io_error |= IOERR_GENERAL;
912 rprintf(FERROR, "opendir %s failed: %s\n",
913 full_fname(dir), strerror(errno));
917 offset = strlcpy(fname, dir, MAXPATHLEN);
919 if (offset >= MAXPATHLEN || p[-1] != '/') {
920 if (offset >= MAXPATHLEN - 1) {
921 io_error |= IOERR_GENERAL;
922 rprintf(FERROR, "skipping long-named directory: %s\n",
931 local_exclude_list = NULL;
934 if (strlcpy(p, ".cvsignore", MAXPATHLEN - offset)
935 < MAXPATHLEN - offset)
936 add_exclude_file(&local_exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
938 io_error |= IOERR_GENERAL;
940 "cannot cvs-exclude in long-named directory %s\n",
945 for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
946 char *dname = d_name(di);
947 if (dname[0] == '.' && (dname[1] == '\0'
948 || (dname[1] == '.' && dname[2] == '\0')))
950 if (strlcpy(p, dname, MAXPATHLEN - offset) < MAXPATHLEN - offset)
951 send_file_name(f, flist, fname, recurse, 0);
953 io_error |= IOERR_GENERAL;
955 "cannot send long-named file %s\n",
960 io_error |= IOERR_GENERAL;
961 rprintf(FERROR, "readdir(%s): (%d) %s\n",
962 dir, errno, strerror(errno));
965 if (local_exclude_list)
966 free_exclude_list(&local_exclude_list); /* Zeros pointer too */
973 * The delete_files() function in receiver.c sets f to -1 so that we just
974 * construct the file list in memory without sending it over the wire. It
975 * also has the side-effect of ignoring user-excludes if delete_excluded
976 * is set (so that the delete list includes user-excluded files).
978 struct file_list *send_file_list(int f, int argc, char *argv[])
982 char *p, *dir, olddir[sizeof curr_dir];
983 char lastpath[MAXPATHLEN] = "";
984 struct file_list *flist;
988 if (show_filelist_p() && f != -1)
989 start_filelist_progress("building file list");
991 start_write = stats.total_written;
996 io_start_buffering_out(f);
997 if (filesfrom_fd >= 0) {
998 if (argv[0] && !push_dir(argv[0])) {
999 rprintf(FERROR, "push_dir %s failed: %s\n",
1000 full_fname(argv[0]), strerror(errno));
1001 exit_cleanup(RERR_FILESELECT);
1008 char fname2[MAXPATHLEN];
1009 char *fname = fname2;
1012 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
1014 sanitize_path(fname, NULL);
1018 strlcpy(fname, *argv++, MAXPATHLEN);
1020 sanitize_path(fname, NULL);
1024 if (fname[l - 1] == '/') {
1025 if (l == 2 && fname[0] == '.') {
1026 /* Turn "./" into just "." rather than "./." */
1028 } else if (l < MAXPATHLEN) {
1034 if (link_stat(fname, &st) != 0) {
1036 io_error |= IOERR_GENERAL;
1037 rprintf(FERROR, "link_stat %s failed: %s\n",
1038 full_fname(fname), strerror(errno));
1043 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
1044 rprintf(FINFO, "skipping directory %s\n", fname);
1051 if (!relative_paths) {
1052 p = strrchr(fname, '/');
1061 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
1062 /* this ensures we send the intermediate directories,
1063 thus getting their permissions right */
1064 char *lp = lastpath, *fn = fname, *slash = fname;
1066 /* Skip any initial directories in our path that we
1067 * have in common with lastpath. */
1068 while (*fn && *lp == *fn) {
1074 if (fn != p || (*lp && *lp != '/')) {
1075 int copy_links_saved = copy_links;
1076 int recurse_saved = recurse;
1077 copy_links = copy_unsafe_links;
1078 /* set recurse to 1 to prevent make_file
1079 * from ignoring directory, but still
1080 * turn off the recursive parameter to
1083 while ((slash = strchr(slash+1, '/')) != 0) {
1085 send_file_name(f, flist, fname, 0, 0);
1088 copy_links = copy_links_saved;
1089 recurse = recurse_saved;
1091 strlcpy(lastpath, fname, sizeof lastpath);
1100 static char *lastdir;
1101 static int lastdir_len;
1103 strcpy(olddir, curr_dir); /* can't overflow */
1105 if (!push_dir(dir)) {
1106 io_error |= IOERR_GENERAL;
1107 rprintf(FERROR, "push_dir %s failed: %s\n",
1108 full_fname(dir), strerror(errno));
1112 if (lastdir && strcmp(lastdir, dir) == 0) {
1113 flist_dir = lastdir;
1114 flist_dir_len = lastdir_len;
1118 flist_dir = lastdir = strdup(dir);
1119 flist_dir_len = lastdir_len = strlen(dir);
1123 if (one_file_system)
1124 set_filesystem(fname);
1126 send_file_name(f, flist, fname, recurse, FLAG_DELETE);
1131 if (!pop_dir(olddir)) {
1132 rprintf(FERROR, "pop_dir %s failed: %s\n",
1133 full_fname(dir), strerror(errno));
1134 exit_cleanup(RERR_FILESELECT);
1140 send_file_entry(NULL, f, 0);
1142 if (show_filelist_p())
1143 finish_filelist_progress(flist);
1146 clean_flist(flist, 0, 0);
1149 /* Now send the uid/gid list. This was introduced in
1150 * protocol version 15 */
1153 /* send the io_error flag */
1154 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1157 stats.flist_size = stats.total_written - start_write;
1158 stats.num_files = flist->count;
1160 write_batch_flist_info(flist->count, flist->files);
1164 rprintf(FINFO, "send_file_list done\n");
1170 struct file_list *recv_file_list(int f)
1172 struct file_list *flist;
1173 unsigned short flags;
1175 extern int list_only;
1177 if (show_filelist_p())
1178 start_filelist_progress("receiving file list");
1180 start_read = stats.total_read;
1182 flist = new(struct file_list);
1187 flist->malloced = 1000;
1188 flist->files = new_array(struct file_struct *, flist->malloced);
1193 while ((flags = read_byte(f)) != 0) {
1194 int i = flist->count;
1196 flist_expand(flist);
1198 if (protocol_version >= 28 && (flags & EXTENDED_FLAGS))
1199 flags |= read_byte(f) << 8;
1200 receive_file_entry(&flist->files[i], flags, f);
1202 if (S_ISREG(flist->files[i]->mode))
1203 stats.total_size += flist->files[i]->length;
1207 maybe_emit_filelist_progress(flist);
1210 rprintf(FINFO, "recv_file_name(%s)\n",
1211 f_name(flist->files[i]));
1214 receive_file_entry(NULL, 0, 0); /* Signal that we're done. */
1217 rprintf(FINFO, "received %d names\n", flist->count);
1219 if (show_filelist_p())
1220 finish_filelist_progress(flist);
1222 clean_flist(flist, relative_paths, 1);
1225 /* Now send the uid/gid list. This was introduced in
1226 * protocol version 15 */
1227 recv_uid_list(f, flist);
1230 /* Recv the io_error flag */
1231 if (lp_ignore_errors(module_id) || ignore_errors)
1234 io_error |= read_int(f);
1240 for (i = 0; i < flist->count; i++)
1241 list_file_entry(flist->files[i]);
1245 rprintf(FINFO, "recv_file_list done\n");
1247 stats.flist_size = stats.total_read - start_read;
1248 stats.num_files = flist->count;
1253 out_of_memory("recv_file_list");
1254 return NULL; /* not reached */
1258 int file_compare(struct file_struct **file1, struct file_struct **file2)
1260 struct file_struct *f1 = *file1;
1261 struct file_struct *f2 = *file2;
1263 if (!f1->basename && !f2->basename)
1269 if (f1->dirname == f2->dirname)
1270 return u_strcmp(f1->basename, f2->basename);
1271 return f_name_cmp(f1, f2);
1275 int flist_find(struct file_list *flist, struct file_struct *f)
1277 int low = 0, high = flist->count - 1;
1279 while (high >= 0 && !flist->files[high]->basename) high--;
1284 while (low != high) {
1285 int mid = (low + high) / 2;
1286 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
1288 return flist_up(flist, mid);
1295 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1296 return flist_up(flist, low);
1304 void free_file(struct file_struct *file)
1309 free(file->basename);
1310 if (!IS_DEVICE(file->mode) && file->u.link)
1311 free(file->u.link); /* Handles u.sum too. */
1312 if (file->link_u.idev)
1313 free((char*)file->link_u.idev); /* Handles link_u.links too. */
1319 * allocate a new file list
1321 struct file_list *flist_new(void)
1323 struct file_list *flist;
1325 flist = new(struct file_list);
1327 out_of_memory("send_file_list");
1330 flist->malloced = 0;
1331 flist->files = NULL;
1334 flist->string_area = string_area_new(0);
1336 flist->string_area = NULL;
1342 * free up all elements in a flist
1344 void flist_free(struct file_list *flist)
1347 for (i = 1; i < flist->count; i++) {
1348 if (!flist->string_area)
1349 free_file(flist->files[i]);
1350 free(flist->files[i]);
1352 /* FIXME: I don't think we generally need to blank the flist
1353 * since it's about to be freed. This will just cause more
1354 * memory traffic. If you want a freed-memory debugger, you
1355 * know where to get it. */
1356 memset((char *) flist->files, 0,
1357 sizeof(flist->files[0]) * flist->count);
1359 if (flist->string_area)
1360 string_area_free(flist->string_area);
1361 memset((char *) flist, 0, sizeof(*flist));
1367 * This routine ensures we don't have any duplicate names in our file list.
1368 * duplicate names can cause corruption because of the pipelining
1370 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1374 if (!flist || flist->count == 0)
1377 qsort(flist->files, flist->count,
1378 sizeof(flist->files[0]), (int (*)()) file_compare);
1380 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1381 if (flist->files[i]->basename) {
1386 while (++i < flist->count) {
1387 if (!flist->files[i]->basename)
1389 if (f_name_cmp(flist->files[i], flist->files[prev_i]) == 0) {
1390 if (verbose > 1 && !am_server) {
1392 "removing duplicate name %s from file list %d\n",
1393 f_name(flist->files[i]), i);
1395 /* Make sure that if we unduplicate '.', that we don't
1396 * lose track of a user-specified starting point (or
1397 * else deletions will mysteriously fail with -R). */
1398 if (flist->files[i]->flags & FLAG_DELETE)
1399 flist->files[prev_i]->flags |= FLAG_DELETE;
1400 /* it's not great that the flist knows the semantics of
1401 * the file memory usage, but i'd rather not add a flag
1402 * byte to that struct.
1403 * XXX can i use a bit in the flags field? */
1404 if (flist->string_area)
1405 flist->files[i][0] = null_file;
1407 free_file(flist->files[i]);
1413 /* we need to strip off the root directory in the case
1414 of relative paths, but this must be done _after_
1415 the sorting phase */
1416 for (i = 0; i < flist->count; i++) {
1417 if (flist->files[i]->dirname &&
1418 flist->files[i]->dirname[0] == '/') {
1419 memmove(&flist->files[i]->dirname[0],
1420 &flist->files[i]->dirname[1],
1421 strlen(flist->files[i]->dirname));
1424 if (flist->files[i]->dirname &&
1425 !flist->files[i]->dirname[0]) {
1426 flist->files[i]->dirname = NULL;
1434 for (i = 0; i < flist->count; i++) {
1435 rprintf(FINFO, "[%ld] i=%d %s %s mode=0%o len=%.0f\n",
1437 NS(flist->files[i]->dirname),
1438 NS(flist->files[i]->basename),
1439 (int) flist->files[i]->mode,
1440 (double) flist->files[i]->length);
1445 enum fnc_state { fnc_DIR, fnc_SLASH, fnc_BASE };
1447 /* Compare the names of two file_struct entities, just like strcmp()
1448 * would do if it were operating on the joined strings. We assume
1449 * that there are no 0-length strings.
1451 int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
1454 const uchar *c1, *c2;
1455 enum fnc_state state1, state2;
1457 if (!f1 || !f1->basename) {
1458 if (!f2 || !f2->basename)
1462 if (!f2 || !f2->basename)
1465 if (!(c1 = (uchar*)f1->dirname)) {
1467 c1 = (uchar*)f1->basename;
1470 if (!(c2 = (uchar*)f2->dirname)) {
1472 c2 = (uchar*)f2->basename;
1477 if ((dif = (int)*c1 - (int)*c2) != 0)
1487 c1 = (uchar*)f1->basename;
1501 c2 = (uchar*)f2->basename;
1515 /* Return a copy of the full filename of a flist entry, using the indicated
1516 * buffer. No size-checking is done because we checked the size when creating
1517 * the file_struct entry.
1519 char *f_name_to(struct file_struct *f, char *fbuf)
1521 if (!f || !f->basename)
1525 int len = strlen(f->dirname);
1526 memcpy(fbuf, f->dirname, len);
1528 strcpy(fbuf + len + 1, f->basename);
1530 strcpy(fbuf, f->basename);
1535 /* Like f_name_to(), but we rotate through 5 static buffers of our own.
1537 char *f_name(struct file_struct *f)
1539 static char names[5][MAXPATHLEN];
1540 static unsigned int n;
1542 n = (n + 1) % (sizeof names / sizeof names[0]);
1544 return f_name_to(f, names[n]);