2 Copyright (C) Andrew Tridgell 1996
3 Copyright (C) Paul Mackerras 1996
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /* generate and receive file lists */
24 extern struct stats stats;
28 extern int always_checksum;
30 extern int cvs_exclude;
34 extern int one_file_system;
35 extern int make_backups;
36 extern int preserve_links;
37 extern int preserve_hard_links;
38 extern int preserve_perms;
39 extern int preserve_devices;
40 extern int preserve_uid;
41 extern int preserve_gid;
42 extern int preserve_times;
43 extern int relative_paths;
44 extern int copy_links;
45 extern int copy_unsafe_links;
46 extern int remote_version;
48 extern int sanitize_paths;
50 static char topsrcname[MAXPATHLEN];
52 static struct exclude_struct **local_exclude_list;
54 static void clean_flist(struct file_list *flist, int strip_root);
57 static void list_file_entry(struct file_struct *f)
59 char perms[11] = "----------";
60 char *perm_map = "rwxrwxrwx";
64 /* this can happen if duplicate names were removed */
68 if (f->mode & (1<<i)) perms[9-i] = perm_map[8-i];
70 if (S_ISLNK(f->mode)) perms[0] = 'l';
71 if (S_ISDIR(f->mode)) perms[0] = 'd';
72 if (S_ISBLK(f->mode)) perms[0] = 'b';
73 if (S_ISCHR(f->mode)) perms[0] = 'c';
74 if (S_ISSOCK(f->mode)) perms[0] = 's';
75 if (S_ISFIFO(f->mode)) perms[0] = 'p';
77 if (preserve_links && S_ISLNK(f->mode)) {
78 rprintf(FINFO,"%s %11.0f %s %s -> %s\n",
80 (double)f->length, timestring(f->modtime),
83 rprintf(FINFO,"%s %11.0f %s %s\n",
85 (double)f->length, timestring(f->modtime), f_name(f));
90 int readlink_stat(const char *Path, STRUCT_STAT *Buffer, char *Linkbuf)
94 return do_stat(Path, Buffer);
96 if (do_lstat(Path, Buffer) == -1) {
99 if (S_ISLNK(Buffer->st_mode)) {
101 if ((l = readlink(Path,Linkbuf,MAXPATHLEN-1)) == -1) {
105 if (copy_unsafe_links && (topsrcname[0] != '\0') &&
106 unsafe_symlink(Linkbuf, topsrcname)) {
107 return do_stat(Path, Buffer);
112 return do_stat(Path, Buffer);
116 int link_stat(const char *Path, STRUCT_STAT *Buffer)
120 return do_stat(Path, Buffer);
122 return do_lstat(Path, Buffer);
125 return do_stat(Path, Buffer);
130 This function is used to check if a file should be included/excluded
131 from the list of files based on its name and type etc
133 static int match_file_name(char *fname,STRUCT_STAT *st)
135 if (check_exclude(fname,local_exclude_list,st)) {
137 rprintf(FINFO,"excluding file %s\n",fname);
143 /* used by the one_file_system code */
144 static dev_t filesystem_dev;
146 static void set_filesystem(char *fname)
149 if (link_stat(fname,&st) != 0) return;
150 filesystem_dev = st.st_dev;
154 static int to_wire_mode(mode_t mode)
156 if (S_ISLNK(mode) && (S_IFLNK != 0120000)) {
157 return (mode & ~(_S_IFMT)) | 0120000;
162 static mode_t from_wire_mode(int mode)
164 if ((mode & (_S_IFMT)) == 0120000 && (S_IFLNK != 0120000)) {
165 return (mode & ~(_S_IFMT)) | S_IFLNK;
171 static void send_directory(int f,struct file_list *flist,char *dir);
173 static char *flist_dir;
176 static void send_file_entry(struct file_struct *file,int f,unsigned base_flags)
179 static time_t last_time;
180 static mode_t last_mode;
181 static dev_t last_rdev;
182 static uid_t last_uid;
183 static gid_t last_gid;
184 static char lastname[MAXPATHLEN];
195 fname = f_name(file);
199 if (file->mode == last_mode) flags |= SAME_MODE;
200 if (file->rdev == last_rdev) flags |= SAME_RDEV;
201 if (file->uid == last_uid) flags |= SAME_UID;
202 if (file->gid == last_gid) flags |= SAME_GID;
203 if (file->modtime == last_time) flags |= SAME_TIME;
205 for (l1=0;lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);l1++) ;
206 l2 = strlen(fname) - l1;
208 if (l1 > 0) flags |= SAME_NAME;
209 if (l2 > 255) flags |= LONG_NAME;
211 /* we must make sure we don't send a zero flags byte or the other
212 end will terminate the flist transfer */
213 if (flags == 0 && !S_ISDIR(file->mode)) flags |= FLAG_DELETE;
214 if (flags == 0) flags |= LONG_NAME;
217 if (flags & SAME_NAME)
219 if (flags & LONG_NAME)
223 write_buf(f,fname+l1,l2);
225 write_longint(f,file->length);
226 if (!(flags & SAME_TIME))
227 write_int(f,(int)file->modtime);
228 if (!(flags & SAME_MODE))
229 write_int(f,to_wire_mode(file->mode));
230 if (preserve_uid && !(flags & SAME_UID)) {
232 write_int(f,(int)file->uid);
234 if (preserve_gid && !(flags & SAME_GID)) {
236 write_int(f,(int)file->gid);
238 if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_RDEV))
239 write_int(f,(int)file->rdev);
242 if (preserve_links && S_ISLNK(file->mode)) {
243 write_int(f,strlen(file->link));
244 write_buf(f,file->link,strlen(file->link));
248 #if SUPPORT_HARD_LINKS
249 if (preserve_hard_links && S_ISREG(file->mode)) {
250 write_int(f,(int)file->dev);
251 write_int(f,(int)file->inode);
255 if (always_checksum) {
256 if (remote_version < 21) {
257 write_buf(f,file->sum,2);
259 write_buf(f,file->sum,MD4_SUM_LENGTH);
263 last_mode = file->mode;
264 last_rdev = file->rdev;
265 last_uid = file->uid;
266 last_gid = file->gid;
267 last_time = file->modtime;
269 strlcpy(lastname,fname,MAXPATHLEN);
270 lastname[MAXPATHLEN-1] = 0;
275 static void receive_file_entry(struct file_struct **fptr,
276 unsigned flags,int f)
278 static time_t last_time;
279 static mode_t last_mode;
280 static dev_t last_rdev;
281 static uid_t last_uid;
282 static gid_t last_gid;
283 static char lastname[MAXPATHLEN];
284 char thisname[MAXPATHLEN];
287 struct file_struct *file;
289 if (flags & SAME_NAME)
292 if (flags & LONG_NAME)
297 file = (struct file_struct *)malloc(sizeof(*file));
298 if (!file) out_of_memory("receive_file_entry");
299 memset((char *)file, 0, sizeof(*file));
302 if (l2 >= MAXPATHLEN-l1) overflow("receive_file_entry");
304 strlcpy(thisname,lastname,l1+1);
305 read_sbuf(f,&thisname[l1],l2);
308 strlcpy(lastname,thisname,MAXPATHLEN);
309 lastname[MAXPATHLEN-1] = 0;
311 clean_fname(thisname);
313 if (sanitize_paths) {
314 sanitize_path(thisname, NULL);
317 if ((p = strrchr(thisname,'/'))) {
318 static char *lastdir;
320 if (lastdir && strcmp(thisname, lastdir)==0) {
321 file->dirname = lastdir;
323 file->dirname = strdup(thisname);
324 lastdir = file->dirname;
326 file->basename = strdup(p+1);
328 file->dirname = NULL;
329 file->basename = strdup(thisname);
332 if (!file->basename) out_of_memory("receive_file_entry 1");
336 file->length = read_longint(f);
337 file->modtime = (flags & SAME_TIME) ? last_time : (time_t)read_int(f);
338 file->mode = (flags & SAME_MODE) ? last_mode : from_wire_mode(read_int(f));
340 file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f);
342 file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
343 if (preserve_devices && IS_DEVICE(file->mode))
344 file->rdev = (flags & SAME_RDEV) ? last_rdev : (dev_t)read_int(f);
346 if (preserve_links && S_ISLNK(file->mode)) {
348 file->link = (char *)malloc(l+1);
349 if (!file->link) out_of_memory("receive_file_entry 2");
350 read_sbuf(f,file->link,l);
351 if (sanitize_paths) {
352 sanitize_path(file->link, file->dirname);
356 #if SUPPORT_HARD_LINKS
357 if (preserve_hard_links && S_ISREG(file->mode)) {
358 file->dev = read_int(f);
359 file->inode = read_int(f);
363 if (always_checksum) {
364 file->sum = (char *)malloc(MD4_SUM_LENGTH);
365 if (!file->sum) out_of_memory("md4 sum");
366 if (remote_version < 21) {
367 read_buf(f,file->sum,2);
369 read_buf(f,file->sum,MD4_SUM_LENGTH);
373 last_mode = file->mode;
374 last_rdev = file->rdev;
375 last_uid = file->uid;
376 last_gid = file->gid;
377 last_time = file->modtime;
379 if (!preserve_perms) {
380 extern int orig_umask;
381 /* set an appropriate set of permissions based on original
382 permissions and umask. This emulates what GNU cp does */
383 file->mode &= ~orig_umask;
388 /* determine if a file in a different filesstem should be skipped
389 when one_file_system is set. We bascally only want to include
390 the mount points - but they can be hard to find! */
391 static int skip_filesystem(char *fname, STRUCT_STAT *st)
394 char *p = strrchr(fname, '/');
396 /* skip all but directories */
397 if (!S_ISDIR(st->st_mode)) return 1;
399 /* if its not a subdirectory then allow */
403 if (link_stat(fname, &st2)) {
409 return (st2.st_dev != filesystem_dev);
412 static struct file_struct *make_file(int f, char *fname)
414 struct file_struct *file;
416 char sum[SUM_LENGTH];
418 char cleaned_name[MAXPATHLEN];
419 char linkbuf[MAXPATHLEN];
420 extern int delete_excluded;
422 strlcpy(cleaned_name, fname, MAXPATHLEN);
423 cleaned_name[MAXPATHLEN-1] = 0;
424 clean_fname(cleaned_name);
425 if (sanitize_paths) {
426 sanitize_path(cleaned_name, NULL);
428 fname = cleaned_name;
430 memset(sum,0,SUM_LENGTH);
432 if (readlink_stat(fname,&st,linkbuf) != 0) {
434 rprintf(FERROR,"%s: %s\n",
435 fname,strerror(errno));
439 if (S_ISDIR(st.st_mode) && !recurse) {
440 rprintf(FINFO,"skipping directory %s\n",fname);
444 if (one_file_system && st.st_dev != filesystem_dev) {
445 if (skip_filesystem(fname, &st))
449 /* f is set to -1 when calculating deletion file list */
450 if (((f != -1) || !delete_excluded) && !match_file_name(fname,&st))
454 rprintf(FINFO,"make_file(%d,%s)\n",f,fname);
456 file = (struct file_struct *)malloc(sizeof(*file));
457 if (!file) out_of_memory("make_file");
458 memset((char *)file,0,sizeof(*file));
460 if ((p = strrchr(fname,'/'))) {
461 static char *lastdir;
463 if (lastdir && strcmp(fname, lastdir)==0) {
464 file->dirname = lastdir;
466 file->dirname = strdup(fname);
467 lastdir = file->dirname;
469 file->basename = strdup(p+1);
472 file->dirname = NULL;
473 file->basename = strdup(fname);
476 file->modtime = st.st_mtime;
477 file->length = st.st_size;
478 file->mode = st.st_mode;
479 file->uid = st.st_uid;
480 file->gid = st.st_gid;
481 file->dev = st.st_dev;
482 file->inode = st.st_ino;
484 file->rdev = st.st_rdev;
488 if (S_ISLNK(st.st_mode)) {
489 file->link = strdup(linkbuf);
493 if (always_checksum) {
494 file->sum = (char *)malloc(MD4_SUM_LENGTH);
495 if (!file->sum) out_of_memory("md4 sum");
496 /* drat. we have to provide a null checksum for non-regular
497 files in order to be compatible with earlier versions
499 if (S_ISREG(st.st_mode)) {
500 file_checksum(fname,file->sum,st.st_size);
502 memset(file->sum, 0, MD4_SUM_LENGTH);
507 static char *lastdir;
508 if (lastdir && strcmp(lastdir, flist_dir)==0) {
509 file->basedir = lastdir;
511 file->basedir = strdup(flist_dir);
512 lastdir = file->basedir;
515 file->basedir = NULL;
518 if (!S_ISDIR(st.st_mode))
519 stats.total_size += st.st_size;
526 void send_file_name(int f,struct file_list *flist,char *fname,
527 int recursive, unsigned base_flags)
529 struct file_struct *file;
531 file = make_file(f,fname);
535 if (flist->count >= flist->malloced) {
536 if (flist->malloced < 1000)
537 flist->malloced += 1000;
539 flist->malloced *= 2;
540 flist->files = (struct file_struct **)realloc(flist->files,
541 sizeof(flist->files[0])*
544 out_of_memory("send_file_name");
547 if (strcmp(file->basename,"")) {
548 flist->files[flist->count++] = file;
549 send_file_entry(file,f,base_flags);
552 if (S_ISDIR(file->mode) && recursive) {
553 struct exclude_struct **last_exclude_list = local_exclude_list;
554 send_directory(f,flist,f_name(file));
555 local_exclude_list = last_exclude_list;
562 static void send_directory(int f,struct file_list *flist,char *dir)
566 char fname[MAXPATHLEN];
573 rprintf(FERROR,"opendir(%s): %s\n",
574 dir,strerror(errno));
578 strlcpy(fname,dir,MAXPATHLEN);
580 if (fname[l-1] != '/') {
581 if (l == MAXPATHLEN-1) {
583 rprintf(FERROR,"skipping long-named directory %s\n",fname);
587 strlcat(fname,"/", MAXPATHLEN);
590 p = fname + strlen(fname);
592 local_exclude_list = NULL;
595 if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN-1) {
596 strcpy(p,".cvsignore");
597 local_exclude_list = make_exclude_list(fname,NULL,0,0);
600 rprintf(FINFO,"cannot cvs-exclude in long-named directory %s\n",fname);
604 for (di=readdir(d); di; di=readdir(d)) {
605 char *dname = d_name(di);
606 if (strcmp(dname,".")==0 ||
607 strcmp(dname,"..")==0)
609 strlcpy(p,dname,MAXPATHLEN-l);
610 send_file_name(f,flist,fname,recurse,0);
613 if (local_exclude_list) {
614 add_exclude_list("!", &local_exclude_list, 0);
622 struct file_list *send_file_list(int f,int argc,char *argv[])
626 char *p,*dir,*olddir;
627 char lastpath[MAXPATHLEN]="";
628 struct file_list *flist;
631 if (verbose && recurse && !am_server && f != -1) {
632 rprintf(FINFO,"building file list ... ");
636 start_write = stats.total_written;
638 flist = (struct file_list *)malloc(sizeof(flist[0]));
639 if (!flist) out_of_memory("send_file_list");
642 flist->malloced = 1000;
643 flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])*
645 if (!flist->files) out_of_memory("send_file_list");
648 io_start_buffering(f);
651 for (i=0;i<argc;i++) {
652 char *fname = topsrcname;
654 strlcpy(fname,argv[i],MAXPATHLEN);
657 if (l != 1 && fname[l-1] == '/') {
658 if ((l == 2) && (fname[0] == '.')) {
659 /* Turn ./ into just . rather than ./.
660 This was put in to avoid a problem with
661 rsync -aR --delete from ./
662 The send_file_name() below of ./ was
663 mysteriously preventing deletes */
666 strlcat(fname,".",MAXPATHLEN);
670 if (link_stat(fname,&st) != 0) {
672 rprintf(FERROR,"%s : %s\n",fname,strerror(errno));
676 if (S_ISDIR(st.st_mode) && !recurse) {
677 rprintf(FINFO,"skipping directory %s\n",fname);
684 if (!relative_paths) {
685 p = strrchr(fname,'/');
694 } else if (f != -1 && (p=strrchr(fname,'/'))) {
695 /* this ensures we send the intermediate directories,
696 thus getting their permissions right */
698 if (strcmp(lastpath,fname)) {
699 strlcpy(lastpath, fname, sizeof(lastpath));
701 for (p=fname+1; (p=strchr(p,'/')); p++) {
702 int copy_links_saved = copy_links;
703 int recurse_saved = recurse;
705 copy_links = copy_unsafe_links;
706 /* set recurse to 1 to prevent make_file
707 from ignoring directory, but still
708 turn off the recursive parameter to
711 send_file_name(f, flist, fname, 0, 0);
712 copy_links = copy_links_saved;
713 recurse = recurse_saved;
725 olddir = push_dir(dir, 1);
729 rprintf(FERROR,"push_dir %s : %s\n",
730 dir,strerror(errno));
738 set_filesystem(fname);
740 if (!recurse || !send_included_file_names(f,flist))
741 send_file_name(f,flist,fname,recurse,FLAG_DELETE);
743 if (olddir != NULL) {
745 if (pop_dir(olddir) != 0) {
746 rprintf(FERROR,"pop_dir %s : %s\n",
747 dir,strerror(errno));
748 exit_cleanup(RERR_FILESELECT);
753 topsrcname[0] = '\0';
756 send_file_entry(NULL,f,0);
759 if (verbose && recurse && !am_server && f != -1)
760 rprintf(FINFO,"done\n");
762 clean_flist(flist, 0);
764 /* now send the uid/gid list. This was introduced in protocol
766 if (f != -1 && remote_version >= 15) {
770 /* if protocol version is >= 17 then send the io_error flag */
771 if (f != -1 && remote_version >= 17) {
772 extern int module_id;
773 write_int(f, lp_ignore_errors(module_id)? 0 : io_error);
778 stats.flist_size = stats.total_written - start_write;
779 stats.num_files = flist->count;
783 rprintf(FINFO,"send_file_list done\n");
789 struct file_list *recv_file_list(int f)
791 struct file_list *flist;
794 extern int list_only;
796 if (verbose && recurse && !am_server) {
797 rprintf(FINFO,"receiving file list ... ");
801 start_read = stats.total_read;
803 flist = (struct file_list *)malloc(sizeof(flist[0]));
808 flist->malloced=1000;
809 flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])*
815 for (flags=read_byte(f); flags; flags=read_byte(f)) {
816 int i = flist->count;
818 if (i >= flist->malloced) {
819 if (flist->malloced < 1000)
820 flist->malloced += 1000;
822 flist->malloced *= 2;
823 flist->files =(struct file_struct **)realloc(flist->files,
824 sizeof(flist->files[0])*
830 receive_file_entry(&flist->files[i],flags,f);
832 if (S_ISREG(flist->files[i]->mode))
833 stats.total_size += flist->files[i]->length;
838 rprintf(FINFO,"recv_file_name(%s)\n",f_name(flist->files[i]));
843 rprintf(FINFO,"received %d names\n",flist->count);
845 clean_flist(flist, relative_paths);
847 if (verbose && recurse && !am_server) {
848 rprintf(FINFO,"done\n");
851 /* now recv the uid/gid list. This was introduced in protocol version 15 */
852 if (f != -1 && remote_version >= 15) {
853 recv_uid_list(f, flist);
856 /* if protocol version is >= 17 then recv the io_error flag */
857 if (f != -1 && remote_version >= 17) {
858 extern int module_id;
859 if (lp_ignore_errors(module_id)) {
862 io_error |= read_int(f);
868 for (i=0;i<flist->count;i++) {
869 list_file_entry(flist->files[i]);
875 rprintf(FINFO,"recv_file_list done\n");
877 stats.flist_size = stats.total_read - start_read;
878 stats.num_files = flist->count;
883 out_of_memory("recv_file_list");
884 return NULL; /* not reached */
888 int file_compare(struct file_struct **f1,struct file_struct **f2)
890 if (!(*f1)->basename && !(*f2)->basename) return 0;
891 if (!(*f1)->basename) return -1;
892 if (!(*f2)->basename) return 1;
893 if ((*f1)->dirname == (*f2)->dirname)
894 return u_strcmp((*f1)->basename, (*f2)->basename);
895 return u_strcmp(f_name(*f1),f_name(*f2));
899 int flist_find(struct file_list *flist,struct file_struct *f)
901 int low=0,high=flist->count-1;
903 if (flist->count <= 0) return -1;
905 while (low != high) {
906 int mid = (low+high)/2;
907 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
908 if (ret == 0) return flist_up(flist, mid);
916 if (file_compare(&flist->files[flist_up(flist,low)],&f) == 0)
917 return flist_up(flist,low);
925 static void free_file(struct file_struct *file)
928 if (file->basename) free(file->basename);
929 if (file->link) free(file->link);
930 if (file->sum) free(file->sum);
931 memset((char *)file, 0, sizeof(*file));
936 * free up all elements in a flist
938 void flist_free(struct file_list *flist)
941 for (i=1;i<flist->count;i++) {
942 free_file(flist->files[i]);
943 free(flist->files[i]);
945 memset((char *)flist->files, 0, sizeof(flist->files[0])*flist->count);
947 memset((char *)flist, 0, sizeof(*flist));
953 * This routine ensures we don't have any duplicate names in our file list.
954 * duplicate names can cause corruption because of the pipelining
956 static void clean_flist(struct file_list *flist, int strip_root)
960 if (!flist || flist->count == 0)
963 qsort(flist->files,flist->count,
964 sizeof(flist->files[0]),
965 (int (*)())file_compare);
967 for (i=1;i<flist->count;i++) {
968 if (flist->files[i]->basename &&
969 flist->files[i-1]->basename &&
970 strcmp(f_name(flist->files[i]),
971 f_name(flist->files[i-1])) == 0) {
972 if (verbose > 1 && !am_server)
973 rprintf(FINFO,"removing duplicate name %s from file list %d\n",
974 f_name(flist->files[i-1]),i-1);
975 free_file(flist->files[i]);
980 /* we need to strip off the root directory in the case
981 of relative paths, but this must be done _after_
983 for (i=0;i<flist->count;i++) {
984 if (flist->files[i]->dirname &&
985 flist->files[i]->dirname[0] == '/') {
986 memmove(&flist->files[i]->dirname[0],
987 &flist->files[i]->dirname[1],
988 strlen(flist->files[i]->dirname));
991 if (flist->files[i]->dirname &&
992 !flist->files[i]->dirname[0]) {
993 flist->files[i]->dirname = NULL;
999 if (verbose <= 3) return;
1001 for (i=0;i<flist->count;i++) {
1002 rprintf(FINFO,"[%d] i=%d %s %s mode=0%o len=%d\n",
1004 NS(flist->files[i]->dirname),
1005 NS(flist->files[i]->basename),
1006 flist->files[i]->mode,
1007 (int)flist->files[i]->length);
1013 * return the full filename of a flist entry
1015 char *f_name(struct file_struct *f)
1017 static char names[10][MAXPATHLEN];
1021 if (!f || !f->basename) return NULL;
1026 strlcpy(p, f->dirname, MAXPATHLEN);
1027 strlcat(p, "/", MAXPATHLEN);
1028 strlcat(p, f->basename, MAXPATHLEN);
1030 strlcpy(p, f->basename, MAXPATHLEN);