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 cvs_exclude;
44 extern char *files_from;
45 extern int filesfrom_fd;
47 extern int one_file_system;
48 extern int make_backups;
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 remote_version;
62 extern int sanitize_paths;
64 extern int read_batch;
65 extern int write_batch;
67 extern struct exclude_struct **exclude_list;
68 extern struct exclude_struct **server_exclude_list;
69 extern struct exclude_struct **local_exclude_list;
71 static struct file_struct null_file;
73 static void clean_flist(struct file_list *flist, int strip_root, int no_dups);
76 static int show_filelist_p(void)
78 return verbose && (recurse || files_from) && !am_server;
81 static void start_filelist_progress(char *kind)
83 rprintf(FINFO, "%s ... ", kind);
84 if ((verbose > 1) || do_progress)
90 static void emit_filelist_progress(const struct file_list *flist)
92 rprintf(FINFO, " %d files...\r", flist->count);
96 static void maybe_emit_filelist_progress(const struct file_list *flist)
98 if (do_progress && show_filelist_p() && ((flist->count % 100) == 0))
99 emit_filelist_progress(flist);
103 static void finish_filelist_progress(const struct file_list *flist)
106 /* This overwrites the progress line */
107 rprintf(FINFO, "%d file%sto consider\n",
108 flist->count, flist->count == 1 ? " " : "s ");
110 rprintf(FINFO, "done\n");
114 void show_flist_stats(void)
120 static struct string_area *string_area_new(int size)
122 struct string_area *a;
126 a = malloc(sizeof(*a));
128 out_of_memory("string_area_new");
129 a->current = a->base = malloc(size);
131 out_of_memory("string_area_new buffer");
132 a->end = a->base + size;
138 static void string_area_free(struct string_area *a)
140 struct string_area *next;
142 for (; a; a = next) {
148 static char *string_area_malloc(struct string_area **ap, int size)
151 struct string_area *a;
153 /* does the request fit into the current space? */
155 if (a->current + size >= a->end) {
156 /* no; get space, move new string_area to front of the list */
157 a = string_area_new(size > ARENA_SIZE ? size : ARENA_SIZE);
162 /* have space; do the "allocation." */
168 static char *string_area_strdup(struct string_area **ap, const char *src)
170 char *dest = string_area_malloc(ap, strlen(src) + 1);
171 return strcpy(dest, src);
174 static void list_file_entry(struct file_struct *f)
179 /* this can happen if duplicate names were removed */
182 permstring(perms, f->mode);
184 if (preserve_links && S_ISLNK(f->mode)) {
185 rprintf(FINFO, "%s %11.0f %s %s -> %s\n",
187 (double) f->length, timestring(f->modtime),
190 rprintf(FINFO, "%s %11.0f %s %s\n",
192 (double) f->length, timestring(f->modtime),
199 * Stat either a symlink or its referent, depending on the settings of
200 * copy_links, copy_unsafe_links, etc.
202 * @retval -1 on error
204 * @retval 0 for success
206 * @post If @p path is a symlink, then @p linkbuf (of size @c
207 * MAXPATHLEN) contains the symlink target.
209 * @post @p buffer contains information about the link or the
210 * referrent as appropriate, if they exist.
212 int readlink_stat(const char *path, STRUCT_STAT * buffer, char *linkbuf)
216 return do_stat(path, buffer);
218 if (do_lstat(path, buffer) == -1) {
221 if (S_ISLNK(buffer->st_mode)) {
223 l = readlink((char *) path, linkbuf, MAXPATHLEN - 1);
227 if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
229 rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
232 return do_stat(path, buffer);
237 return do_stat(path, buffer);
241 int link_stat(const char *path, STRUCT_STAT * buffer)
245 return do_stat(path, buffer);
247 return do_lstat(path, buffer);
250 return do_stat(path, buffer);
255 * This function is used to check if a file should be included/excluded
256 * from the list of files based on its name and type etc. The value of
257 * exclude_level is set to either SERVER_EXCLUDES or ALL_EXCLUDES.
259 static int check_exclude_file(char *fname, int is_dir, int exclude_level)
261 #if 0 /* This currently never happens, so avoid a useless compare. */
262 if (exclude_level == NO_EXCLUDES)
266 /* never exclude '.', even if somebody does --exclude '*' */
267 if (fname[0] == '.' && !fname[1])
269 /* Handle the -R version of the '.' dir. */
270 if (fname[0] == '/') {
271 int len = strlen(fname);
272 if (fname[len-1] == '.' && fname[len-2] == '/')
276 if (server_exclude_list
277 && check_exclude(server_exclude_list, fname, is_dir))
279 if (exclude_level != ALL_EXCLUDES)
281 if (exclude_list && check_exclude(exclude_list, fname, is_dir))
283 if (local_exclude_list
284 && check_exclude(local_exclude_list, fname, is_dir))
289 /* used by the one_file_system code */
290 static dev_t filesystem_dev;
292 static void set_filesystem(char *fname)
295 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;
309 static mode_t from_wire_mode(int mode)
311 if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000)) {
312 return (mode & ~(_S_IFMT)) | _S_IFLNK;
314 return (mode_t) mode;
318 static void send_directory(int f, struct file_list *flist, char *dir);
320 static char *flist_dir;
324 * Make sure @p flist is big enough to hold at least @p flist->count
327 static void flist_expand(struct file_list *flist)
329 if (flist->count >= flist->malloced) {
333 if (flist->malloced < 1000)
334 flist->malloced += 1000;
336 flist->malloced *= 2;
338 new_bytes = sizeof(flist->files[0]) * flist->malloced;
341 new_ptr = realloc(flist->files, new_bytes);
343 new_ptr = malloc(new_bytes);
346 rprintf(FINFO, "expand file_list to %.0f bytes, did%s move\n",
348 (new_ptr == flist->files) ? " not" : "");
351 flist->files = (struct file_struct **) new_ptr;
354 out_of_memory("flist_expand");
359 static void send_file_entry(struct file_struct *file, int f,
363 static time_t last_time;
364 static mode_t last_mode;
365 static DEV64_T last_rdev;
366 static uid_t last_uid;
367 static gid_t last_gid;
368 static char lastname[MAXPATHLEN];
380 io_write_phase = "send_file_entry";
382 fname = f_name(file);
386 if (file->mode == last_mode)
388 if (file->rdev == last_rdev)
390 if (file->uid == last_uid)
392 if (file->gid == last_gid)
394 if (file->modtime == last_time)
398 lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
400 l2 = strlen(fname) - l1;
407 /* we must make sure we don't send a zero flags byte or the other
408 end will terminate the flist transfer */
409 if (flags == 0 && !S_ISDIR(file->mode))
410 flags |= FLAG_DELETE;
414 write_byte(f, flags);
415 if (flags & SAME_NAME)
417 if (flags & LONG_NAME)
421 write_buf(f, fname + l1, l2);
423 write_longint(f, file->length);
424 if (!(flags & SAME_TIME))
425 write_int(f, (int) file->modtime);
426 if (!(flags & SAME_MODE))
427 write_int(f, to_wire_mode(file->mode));
428 if (preserve_uid && !(flags & SAME_UID)) {
430 write_int(f, (int) file->uid);
432 if (preserve_gid && !(flags & SAME_GID)) {
434 write_int(f, (int) file->gid);
436 if (preserve_devices && IS_DEVICE(file->mode)
437 && !(flags & SAME_RDEV))
438 write_int(f, (int) file->rdev);
441 if (preserve_links && S_ISLNK(file->mode)) {
442 write_int(f, strlen(file->link));
443 write_buf(f, file->link, strlen(file->link));
447 #if SUPPORT_HARD_LINKS
448 if (preserve_hard_links && S_ISREG(file->mode)) {
449 if (remote_version < 26) {
450 /* 32-bit dev_t and ino_t */
451 write_int(f, (int) file->dev);
452 write_int(f, (int) file->inode);
454 /* 64-bit dev_t and ino_t */
455 write_longint(f, file->dev);
456 write_longint(f, file->inode);
461 if (always_checksum) {
462 if (remote_version < 21) {
463 write_buf(f, file->sum, 2);
465 write_buf(f, file->sum, MD4_SUM_LENGTH);
469 last_mode = file->mode;
470 last_rdev = file->rdev;
471 last_uid = file->uid;
472 last_gid = file->gid;
473 last_time = file->modtime;
475 strlcpy(lastname, fname, MAXPATHLEN);
476 lastname[MAXPATHLEN - 1] = 0;
478 io_write_phase = "unknown";
483 static void receive_file_entry(struct file_struct **fptr,
484 unsigned flags, int f)
486 static time_t last_time;
487 static mode_t last_mode;
488 static DEV64_T last_rdev;
489 static uid_t last_uid;
490 static gid_t last_gid;
491 static char lastname[MAXPATHLEN];
492 char thisname[MAXPATHLEN];
493 unsigned int l1 = 0, l2 = 0;
495 struct file_struct *file;
497 if (flags & SAME_NAME)
500 if (flags & LONG_NAME)
505 file = (struct file_struct *) malloc(sizeof(*file));
507 out_of_memory("receive_file_entry");
508 memset((char *) file, 0, sizeof(*file));
511 if (l2 >= MAXPATHLEN - l1) {
513 "overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
514 flags, l1, l2, lastname);
515 overflow("receive_file_entry");
518 strlcpy(thisname, lastname, l1 + 1);
519 read_sbuf(f, &thisname[l1], l2);
520 thisname[l1 + l2] = 0;
522 strlcpy(lastname, thisname, MAXPATHLEN);
523 lastname[MAXPATHLEN - 1] = 0;
525 clean_fname(thisname);
527 if (sanitize_paths) {
528 sanitize_path(thisname, NULL);
531 if ((p = strrchr(thisname, '/'))) {
532 static char *lastdir;
534 if (lastdir && strcmp(thisname, lastdir) == 0) {
535 file->dirname = lastdir;
537 file->dirname = strdup(thisname);
538 lastdir = file->dirname;
540 file->basename = strdup(p + 1);
542 file->dirname = NULL;
543 file->basename = strdup(thisname);
547 out_of_memory("receive_file_entry 1");
551 file->length = read_longint(f);
553 (flags & SAME_TIME) ? last_time : (time_t) read_int(f);
555 (flags & SAME_MODE) ? last_mode : from_wire_mode(read_int(f));
558 (flags & SAME_UID) ? last_uid : (uid_t) read_int(f);
561 (flags & SAME_GID) ? last_gid : (gid_t) read_int(f);
562 if (preserve_devices && IS_DEVICE(file->mode))
564 (flags & SAME_RDEV) ? last_rdev : (DEV64_T) read_int(f);
566 if (preserve_links && S_ISLNK(file->mode)) {
569 rprintf(FERROR, "overflow: l=%d\n", l);
570 overflow("receive_file_entry");
572 file->link = (char *) malloc(l + 1);
574 out_of_memory("receive_file_entry 2");
575 read_sbuf(f, file->link, l);
576 if (sanitize_paths) {
577 sanitize_path(file->link, file->dirname);
580 #if SUPPORT_HARD_LINKS
581 if (preserve_hard_links && S_ISREG(file->mode)) {
582 if (remote_version < 26) {
583 file->dev = read_int(f);
584 file->inode = read_int(f);
586 file->dev = read_longint(f);
587 file->inode = read_longint(f);
592 if (always_checksum) {
593 file->sum = (char *) malloc(MD4_SUM_LENGTH);
595 out_of_memory("md4 sum");
596 if (remote_version < 21) {
597 read_buf(f, file->sum, 2);
599 read_buf(f, file->sum, MD4_SUM_LENGTH);
603 last_mode = file->mode;
604 last_rdev = file->rdev;
605 last_uid = file->uid;
606 last_gid = file->gid;
607 last_time = file->modtime;
609 if (!preserve_perms) {
610 extern int orig_umask;
611 /* set an appropriate set of permissions based on original
612 permissions and umask. This emulates what GNU cp does */
613 file->mode &= ~orig_umask;
618 /* determine if a file in a different filesstem should be skipped
619 when one_file_system is set. We bascally only want to include
620 the mount points - but they can be hard to find! */
621 static int skip_filesystem(char *fname, STRUCT_STAT * st)
624 char *p = strrchr(fname, '/');
626 /* skip all but directories */
627 if (!S_ISDIR(st->st_mode))
630 /* if its not a subdirectory then allow */
635 if (link_stat(fname, &st2)) {
641 return (st2.st_dev != filesystem_dev);
644 #define STRDUP(ap, p) (ap ? string_area_strdup(ap, p) : strdup(p))
645 /* IRIX cc cares that the operands to the ternary have the same type. */
646 #define MALLOC(ap, i) (ap ? (void*) string_area_malloc(ap, i) : malloc(i))
649 * Create a file_struct for a named file by reading its stat()
650 * information and performing extensive checks against global
653 * @return the new file, or NULL if there was an error or this file
654 * should be excluded.
656 * @todo There is a small optimization opportunity here to avoid
657 * stat()ing the file in some circumstances, which has a certain cost.
658 * We are called immediately after doing readdir(), and so we may
659 * already know the d_type of the file. We could for example avoid
660 * statting directories if we're not recursing, but this is not a very
661 * important case. Some systems may not have d_type.
663 struct file_struct *make_file(char *fname, struct string_area **ap,
666 struct file_struct *file;
668 char sum[SUM_LENGTH];
670 char cleaned_name[MAXPATHLEN];
671 char linkbuf[MAXPATHLEN];
672 extern int module_id;
674 strlcpy(cleaned_name, fname, MAXPATHLEN);
675 cleaned_name[MAXPATHLEN - 1] = 0;
676 clean_fname(cleaned_name);
677 if (sanitize_paths) {
678 sanitize_path(cleaned_name, NULL);
680 fname = cleaned_name;
682 memset(sum, 0, SUM_LENGTH);
684 if (readlink_stat(fname, &st, linkbuf) != 0) {
685 int save_errno = errno;
686 if (errno == ENOENT && exclude_level != NO_EXCLUDES) {
687 /* either symlink pointing nowhere or file that
688 * was removed during rsync run; see if excluded
689 * before reporting an error */
690 if (check_exclude_file(fname, 0, exclude_level)) {
691 /* file is excluded anyway, ignore silently */
696 rprintf(FERROR, "readlink %s: %s\n",
697 fname, strerror(save_errno));
701 /* backup.c calls us with exclude_level set to NO_EXCLUDES. */
702 if (exclude_level == NO_EXCLUDES)
705 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
706 rprintf(FINFO, "skipping directory %s\n", fname);
710 if (one_file_system && st.st_dev != filesystem_dev) {
711 if (skip_filesystem(fname, &st))
715 if (check_exclude_file(fname, S_ISDIR(st.st_mode) != 0, exclude_level))
718 if (lp_ignore_nonreadable(module_id) && access(fname, R_OK) != 0)
724 rprintf(FINFO, "make_file(%s,*,%d)\n", fname, exclude_level);
726 file = (struct file_struct *) malloc(sizeof(*file));
728 out_of_memory("make_file");
729 memset((char *) file, 0, sizeof(*file));
731 if ((p = strrchr(fname, '/'))) {
732 static char *lastdir;
734 if (lastdir && strcmp(fname, lastdir) == 0) {
735 file->dirname = lastdir;
737 file->dirname = strdup(fname);
738 lastdir = file->dirname;
740 file->basename = STRDUP(ap, p + 1);
743 file->dirname = NULL;
744 file->basename = STRDUP(ap, fname);
747 file->modtime = st.st_mtime;
748 file->length = st.st_size;
749 file->mode = st.st_mode;
750 file->uid = st.st_uid;
751 file->gid = st.st_gid;
752 file->dev = st.st_dev;
753 file->inode = st.st_ino;
754 #ifdef HAVE_STRUCT_STAT_ST_RDEV
755 file->rdev = st.st_rdev;
759 if (S_ISLNK(st.st_mode)) {
760 file->link = STRDUP(ap, linkbuf);
764 if (always_checksum) {
765 file->sum = (char *) MALLOC(ap, MD4_SUM_LENGTH);
767 out_of_memory("md4 sum");
768 /* drat. we have to provide a null checksum for non-regular
769 files in order to be compatible with earlier versions
771 if (S_ISREG(st.st_mode)) {
772 file_checksum(fname, file->sum, st.st_size);
774 memset(file->sum, 0, MD4_SUM_LENGTH);
779 static char *lastdir;
780 if (lastdir && strcmp(lastdir, flist_dir) == 0) {
781 file->basedir = lastdir;
783 file->basedir = strdup(flist_dir);
784 lastdir = file->basedir;
787 file->basedir = NULL;
790 if (!S_ISDIR(st.st_mode))
791 stats.total_size += st.st_size;
798 void send_file_name(int f, struct file_list *flist, char *fname,
799 int recursive, unsigned base_flags)
801 struct file_struct *file;
802 extern int delete_excluded;
804 /* f is set to -1 when calculating deletion file list */
805 file = make_file(fname, &flist->string_area,
806 f == -1 && delete_excluded? SERVER_EXCLUDES
812 maybe_emit_filelist_progress(flist);
816 if (write_batch) /* dw */
817 file->flags = FLAG_DELETE;
819 if (file->basename[0]) {
820 flist->files[flist->count++] = file;
821 send_file_entry(file, f, base_flags);
824 if (S_ISDIR(file->mode) && recursive) {
825 struct exclude_struct **last_exclude_list =
827 send_directory(f, flist, f_name(file));
828 local_exclude_list = last_exclude_list;
835 static void send_directory(int f, struct file_list *flist, char *dir)
839 char fname[MAXPATHLEN];
846 rprintf(FERROR, "opendir(%s): %s\n", dir, strerror(errno));
850 strlcpy(fname, dir, MAXPATHLEN);
852 if (fname[l - 1] != '/') {
853 if (l == MAXPATHLEN - 1) {
856 "skipping long-named directory %s\n",
861 strlcat(fname, "/", MAXPATHLEN);
864 p = fname + strlen(fname);
866 local_exclude_list = NULL;
869 if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN - 1) {
870 strcpy(p, ".cvsignore");
871 add_exclude_file(&exclude_list,fname,MISSING_OK,ADD_EXCLUDE);
875 "cannot cvs-exclude in long-named directory %s\n",
880 for (di = readdir(d); di; di = readdir(d)) {
881 char *dname = d_name(di);
882 if (dname[0] == '.' && (dname[1] == '\0' ||
883 (dname[1] == '.' && dname[2] == '\0')))
885 strlcpy(p, dname, MAXPATHLEN - l);
886 send_file_name(f, flist, fname, recurse, 0);
889 if (local_exclude_list)
890 free_exclude_list(&local_exclude_list); /* Zeros pointer too */
897 * The delete_files() function in receiver.c sets f to -1 so that we just
898 * construct the file list in memory without sending it over the wire. It
899 * also has the side-effect of ignoring user-excludes if delete_excluded
900 * is set (so that the delete list includes user-excluded files).
902 struct file_list *send_file_list(int f, int argc, char *argv[])
906 char *p, *dir, *olddir;
907 char lastpath[MAXPATHLEN] = "";
908 struct file_list *flist;
912 if (show_filelist_p() && f != -1)
913 start_filelist_progress("building file list");
915 start_write = stats.total_written;
920 io_start_buffering(f);
921 if (filesfrom_fd >= 0) {
922 if (argv[0] && !push_dir(argv[0], 0)) {
923 rprintf(FERROR, "push_dir %s : %s\n",
924 argv[0], strerror(errno));
925 exit_cleanup(RERR_FILESELECT);
932 char fname2[MAXPATHLEN];
933 char *fname = fname2;
936 if (read_filesfrom_line(filesfrom_fd, fname) == 0)
938 sanitize_path(fname, NULL);
942 strlcpy(fname, *argv++, MAXPATHLEN);
944 sanitize_path(fname, NULL);
948 if (fname[l - 1] == '/') {
949 if (l == 2 && fname[0] == '.') {
950 /* Turn "./" into just "." rather than "./." */
953 strlcat(fname, ".", MAXPATHLEN);
957 if (link_stat(fname, &st) != 0) {
960 rprintf(FERROR, "link_stat %s : %s\n",
961 fname, strerror(errno));
966 if (S_ISDIR(st.st_mode) && !recurse && !files_from) {
967 rprintf(FINFO, "skipping directory %s\n", fname);
974 if (!relative_paths) {
975 p = strrchr(fname, '/');
984 } else if (f != -1 && implied_dirs && (p=strrchr(fname,'/')) && p != fname) {
985 /* this ensures we send the intermediate directories,
986 thus getting their permissions right */
987 char *lp = lastpath, *fn = fname, *slash = fname;
989 /* Skip any initial directories in our path that we
990 * have in common with lastpath. */
991 while (*fn && *lp == *fn) {
997 if (fn != p || (*lp && *lp != '/')) {
998 int copy_links_saved = copy_links;
999 int recurse_saved = recurse;
1000 copy_links = copy_unsafe_links;
1001 /* set recurse to 1 to prevent make_file
1002 * from ignoring directory, but still
1003 * turn off the recursive parameter to
1006 while ((slash = strchr(slash+1, '/')) != 0) {
1008 send_file_name(f, flist, fname, 0, 0);
1011 copy_links = copy_links_saved;
1012 recurse = recurse_saved;
1014 strlcpy(lastpath, fname, sizeof lastpath);
1023 olddir = push_dir(dir, 1);
1027 rprintf(FERROR, "push_dir %s : %s\n",
1028 dir, strerror(errno));
1035 if (one_file_system)
1036 set_filesystem(fname);
1038 send_file_name(f, flist, fname, recurse, FLAG_DELETE);
1040 if (olddir != NULL) {
1042 if (pop_dir(olddir) != 0) {
1043 rprintf(FERROR, "pop_dir %s : %s\n",
1044 dir, strerror(errno));
1045 exit_cleanup(RERR_FILESELECT);
1051 send_file_entry(NULL, f, 0);
1054 if (show_filelist_p() && f != -1) {
1055 finish_filelist_progress(flist);
1058 clean_flist(flist, 0, 0);
1060 /* now send the uid/gid list. This was introduced in protocol
1066 /* send the io_error flag */
1068 extern int module_id;
1069 write_int(f, lp_ignore_errors(module_id) ? 0 : io_error);
1074 stats.flist_size = stats.total_written - start_write;
1075 stats.num_files = flist->count;
1076 if (write_batch) /* dw */
1077 write_batch_flist_info(flist->count, flist->files);
1081 rprintf(FINFO, "send_file_list done\n");
1087 struct file_list *recv_file_list(int f)
1089 struct file_list *flist;
1090 unsigned char flags;
1092 extern int list_only;
1094 if (show_filelist_p())
1095 start_filelist_progress("receiving file list");
1097 start_read = stats.total_read;
1099 flist = (struct file_list *) malloc(sizeof(flist[0]));
1104 flist->malloced = 1000;
1106 (struct file_struct **) malloc(sizeof(flist->files[0]) *
1112 for (flags = read_byte(f); flags; flags = read_byte(f)) {
1113 int i = flist->count;
1115 flist_expand(flist);
1117 receive_file_entry(&flist->files[i], flags, f);
1119 if (S_ISREG(flist->files[i]->mode))
1120 stats.total_size += flist->files[i]->length;
1124 maybe_emit_filelist_progress(flist);
1127 rprintf(FINFO, "recv_file_name(%s)\n",
1128 f_name(flist->files[i]));
1133 rprintf(FINFO, "received %d names\n", flist->count);
1135 clean_flist(flist, relative_paths, 1);
1137 if (show_filelist_p()) {
1138 finish_filelist_progress(flist);
1141 /* now recv the uid/gid list. This was introduced in protocol version 15 */
1143 recv_uid_list(f, flist);
1146 /* recv the io_error flag */
1147 if (f != -1 && !read_batch) { /* dw-added readbatch */
1148 extern int module_id;
1149 extern int ignore_errors;
1150 if (lp_ignore_errors(module_id) || ignore_errors) {
1153 io_error |= read_int(f);
1159 for (i = 0; i < flist->count; i++) {
1160 list_file_entry(flist->files[i]);
1166 rprintf(FINFO, "recv_file_list done\n");
1168 stats.flist_size = stats.total_read - start_read;
1169 stats.num_files = flist->count;
1174 out_of_memory("recv_file_list");
1175 return NULL; /* not reached */
1180 * XXX: This is currently the hottest function while building the file
1181 * list, because building f_name()s every time is expensive.
1183 int file_compare(struct file_struct **f1, struct file_struct **f2)
1185 if (!(*f1)->basename && !(*f2)->basename)
1187 if (!(*f1)->basename)
1189 if (!(*f2)->basename)
1191 if ((*f1)->dirname == (*f2)->dirname)
1192 return u_strcmp((*f1)->basename, (*f2)->basename);
1193 return u_strcmp(f_name(*f1), f_name(*f2));
1197 int flist_find(struct file_list *flist, struct file_struct *f)
1199 int low = 0, high = flist->count - 1;
1201 while (high >= 0 && !flist->files[high]->basename) high--;
1206 while (low != high) {
1207 int mid = (low + high) / 2;
1209 file_compare(&flist->files[flist_up(flist, mid)], &f);
1211 return flist_up(flist, mid);
1219 if (file_compare(&flist->files[flist_up(flist, low)], &f) == 0)
1220 return flist_up(flist, low);
1228 void free_file(struct file_struct *file)
1233 free(file->basename);
1243 * allocate a new file list
1245 struct file_list *flist_new(void)
1247 struct file_list *flist;
1249 flist = (struct file_list *) malloc(sizeof(flist[0]));
1251 out_of_memory("send_file_list");
1254 flist->malloced = 0;
1255 flist->files = NULL;
1258 flist->string_area = string_area_new(0);
1260 flist->string_area = NULL;
1266 * free up all elements in a flist
1268 void flist_free(struct file_list *flist)
1271 for (i = 1; i < flist->count; i++) {
1272 if (!flist->string_area)
1273 free_file(flist->files[i]);
1274 free(flist->files[i]);
1276 /* FIXME: I don't think we generally need to blank the flist
1277 * since it's about to be freed. This will just cause more
1278 * memory traffic. If you want a freed-memory debugger, you
1279 * know where to get it. */
1280 memset((char *) flist->files, 0,
1281 sizeof(flist->files[0]) * flist->count);
1283 if (flist->string_area)
1284 string_area_free(flist->string_area);
1285 memset((char *) flist, 0, sizeof(*flist));
1291 * This routine ensures we don't have any duplicate names in our file list.
1292 * duplicate names can cause corruption because of the pipelining
1294 static void clean_flist(struct file_list *flist, int strip_root, int no_dups)
1297 char *name, *prev_name = NULL;
1299 if (!flist || flist->count == 0)
1302 qsort(flist->files, flist->count,
1303 sizeof(flist->files[0]), (int (*)()) file_compare);
1305 for (i = no_dups? 0 : flist->count; i < flist->count; i++) {
1306 if (flist->files[i]->basename) {
1308 prev_name = f_name(flist->files[i]);
1312 while (++i < flist->count) {
1313 if (!flist->files[i]->basename)
1315 name = f_name(flist->files[i]);
1316 if (strcmp(name, prev_name) == 0) {
1317 if (verbose > 1 && !am_server) {
1319 "removing duplicate name %s from file list %d\n",
1322 /* Make sure that if we unduplicate '.', that we don't
1323 * lose track of a user-specified starting point (or
1324 * else deletions will mysteriously fail with -R). */
1325 if (flist->files[i]->flags & FLAG_DELETE)
1326 flist->files[prev_i]->flags |= FLAG_DELETE;
1327 /* it's not great that the flist knows the semantics of
1328 * the file memory usage, but i'd rather not add a flag
1329 * byte to that struct.
1330 * XXX can i use a bit in the flags field? */
1331 if (flist->string_area)
1332 flist->files[i][0] = null_file;
1334 free_file(flist->files[i]);
1338 /* We set prev_name every iteration to avoid it becoming
1339 * invalid when names[][] in f_name() wraps around. */
1344 /* we need to strip off the root directory in the case
1345 of relative paths, but this must be done _after_
1346 the sorting phase */
1347 for (i = 0; i < flist->count; i++) {
1348 if (flist->files[i]->dirname &&
1349 flist->files[i]->dirname[0] == '/') {
1350 memmove(&flist->files[i]->dirname[0],
1351 &flist->files[i]->dirname[1],
1352 strlen(flist->files[i]->dirname));
1355 if (flist->files[i]->dirname &&
1356 !flist->files[i]->dirname[0]) {
1357 flist->files[i]->dirname = NULL;
1365 for (i = 0; i < flist->count; i++) {
1366 rprintf(FINFO, "[%d] i=%d %s %s mode=0%o len=%.0f\n",
1368 NS(flist->files[i]->dirname),
1369 NS(flist->files[i]->basename),
1370 (int) flist->files[i]->mode,
1371 (double) flist->files[i]->length);
1377 * return the full filename of a flist entry
1379 * This function is too expensive at the moment, because it copies
1380 * strings when often we only want to compare them. In any case,
1381 * using strlcat is silly because it will walk the string repeatedly.
1383 char *f_name(struct file_struct *f)
1385 static char names[10][MAXPATHLEN];
1389 if (!f || !f->basename)
1397 off = strlcpy(p, f->dirname, MAXPATHLEN);
1398 off += strlcpy(p + off, "/", MAXPATHLEN - off);
1399 off += strlcpy(p + off, f->basename, MAXPATHLEN - off);
1401 strlcpy(p, f->basename, MAXPATHLEN);