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 int csum_length;
28 extern int always_checksum;
29 extern int64 total_size;
31 extern int cvs_exclude;
35 extern int one_file_system;
36 extern int make_backups;
37 extern int preserve_links;
38 extern int preserve_hard_links;
39 extern int preserve_perms;
40 extern int preserve_devices;
41 extern int preserve_uid;
42 extern int preserve_gid;
43 extern int preserve_times;
44 extern int relative_paths;
45 extern int copy_links;
46 extern int remote_version;
49 static char **local_exclude_list;
51 int link_stat(const char *Path, STRUCT_STAT *Buffer)
55 return do_stat(Path, Buffer);
57 return do_lstat(Path, Buffer);
60 return do_stat(Path, Buffer);
65 This function is used to check if a file should be included/excluded
66 from the list of files based on its name and type etc
68 static int match_file_name(char *fname,STRUCT_STAT *st)
70 if (check_exclude(fname,local_exclude_list)) {
72 rprintf(FINFO,"excluding file %s\n",fname);
78 /* used by the one_file_system code */
79 static dev_t filesystem_dev;
81 static void set_filesystem(char *fname)
84 if (link_stat(fname,&st) != 0) return;
85 filesystem_dev = st.st_dev;
89 static void send_directory(int f,struct file_list *flist,char *dir);
91 static char *flist_dir;
93 static void clean_fname(char *name)
104 if ((p=strstr(name,"/./"))) {
112 if ((p=strstr(name,"//"))) {
120 if (strncmp(p=name,"./",2) == 0) {
128 if (l > 1 && p[l-1] == '/') {
137 void send_file_entry(struct file_struct *file,int f,unsigned base_flags)
140 static time_t last_time;
141 static mode_t last_mode;
142 static dev_t last_rdev;
143 static uid_t last_uid;
144 static gid_t last_gid;
145 static char lastname[MAXPATHLEN];
156 fname = f_name(file);
160 if (file->mode == last_mode) flags |= SAME_MODE;
161 if (file->rdev == last_rdev) flags |= SAME_RDEV;
162 if (file->uid == last_uid) flags |= SAME_UID;
163 if (file->gid == last_gid) flags |= SAME_GID;
164 if (file->modtime == last_time) flags |= SAME_TIME;
166 for (l1=0;lastname[l1] && fname[l1] == lastname[l1];l1++) ;
167 l2 = strlen(fname) - l1;
169 if (l1 > 0) flags |= SAME_NAME;
170 if (l2 > 255) flags |= LONG_NAME;
173 if (flags & SAME_NAME)
175 if (flags & LONG_NAME)
179 write_buf(f,fname+l1,l2);
181 write_longint(f,file->length);
182 if (!(flags & SAME_TIME))
183 write_int(f,(int)file->modtime);
184 if (!(flags & SAME_MODE))
185 write_int(f,(int)file->mode);
186 if (preserve_uid && !(flags & SAME_UID)) {
188 write_int(f,(int)file->uid);
190 if (preserve_gid && !(flags & SAME_GID)) {
192 write_int(f,(int)file->gid);
194 if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_RDEV))
195 write_int(f,(int)file->rdev);
198 if (preserve_links && S_ISLNK(file->mode)) {
199 write_int(f,strlen(file->link));
200 write_buf(f,file->link,strlen(file->link));
204 #if SUPPORT_HARD_LINKS
205 if (preserve_hard_links && S_ISREG(file->mode)) {
206 write_int(f,(int)file->dev);
207 write_int(f,(int)file->inode);
211 if (always_checksum) {
212 write_buf(f,file->sum,csum_length);
215 last_mode = file->mode;
216 last_rdev = file->rdev;
217 last_uid = file->uid;
218 last_gid = file->gid;
219 last_time = file->modtime;
221 strlcpy(lastname,fname,MAXPATHLEN-1);
222 lastname[MAXPATHLEN-1] = 0;
227 static void receive_file_entry(struct file_struct **fptr,
228 unsigned flags,int f)
230 static time_t last_time;
231 static mode_t last_mode;
232 static dev_t last_rdev;
233 static uid_t last_uid;
234 static gid_t last_gid;
235 static char lastname[MAXPATHLEN];
236 char thisname[MAXPATHLEN];
239 struct file_struct *file;
241 if (flags & SAME_NAME)
244 if (flags & LONG_NAME)
249 file = (struct file_struct *)malloc(sizeof(*file));
250 if (!file) out_of_memory("receive_file_entry");
251 bzero((char *)file,sizeof(*file));
254 if (l2 >= MAXPATHLEN-l1) overflow("receive_file_entry");
256 strlcpy(thisname,lastname,l1);
257 read_sbuf(f,&thisname[l1],l2);
260 strlcpy(lastname,thisname,MAXPATHLEN-1);
261 lastname[MAXPATHLEN-1] = 0;
263 clean_fname(thisname);
265 if (relative_paths && thisname[0] == '/') {
266 /* strip / off absolute paths in destination */
267 memmove(thisname, thisname+1, strlen(thisname));
268 if (!thisname[0]) strcpy(thisname,".");
271 if ((p = strrchr(thisname,'/'))) {
272 static char *lastdir;
274 if (lastdir && strcmp(thisname, lastdir)==0) {
275 file->dirname = lastdir;
277 file->dirname = strdup(thisname);
278 lastdir = file->dirname;
280 file->basename = strdup(p+1);
282 file->dirname = NULL;
283 file->basename = strdup(thisname);
286 if (!file->basename) out_of_memory("receive_file_entry 1");
290 file->length = read_longint(f);
291 file->modtime = (flags & SAME_TIME) ? last_time : (time_t)read_int(f);
292 file->mode = (flags & SAME_MODE) ? last_mode : (mode_t)read_int(f);
294 file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f);
296 file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
297 if (preserve_devices && IS_DEVICE(file->mode))
298 file->rdev = (flags & SAME_RDEV) ? last_rdev : (dev_t)read_int(f);
300 if (preserve_links && S_ISLNK(file->mode)) {
302 file->link = (char *)malloc(l+1);
303 if (!file->link) out_of_memory("receive_file_entry 2");
304 read_sbuf(f,file->link,l);
307 #if SUPPORT_HARD_LINKS
308 if (preserve_hard_links && S_ISREG(file->mode)) {
309 file->dev = read_int(f);
310 file->inode = read_int(f);
314 if (always_checksum) {
315 file->sum = (char *)malloc(MD4_SUM_LENGTH);
316 if (!file->sum) out_of_memory("md4 sum");
317 read_buf(f,file->sum,csum_length);
320 last_mode = file->mode;
321 last_rdev = file->rdev;
322 last_uid = file->uid;
323 last_gid = file->gid;
324 last_time = file->modtime;
328 /* determine if a file in a different filesstem should be skipped
329 when one_file_system is set. We bascally only want to include
330 the mount points - but they can be hard to find! */
331 static int skip_filesystem(char *fname, STRUCT_STAT *st)
334 char *p = strrchr(fname, '/');
336 /* skip all but directories */
337 if (!S_ISDIR(st->st_mode)) return 1;
339 /* if its not a subdirectory then allow */
343 if (link_stat(fname, &st2)) {
349 return (st2.st_dev != filesystem_dev);
352 static struct file_struct *make_file(char *fname)
354 struct file_struct *file;
356 char sum[SUM_LENGTH];
358 char cleaned_name[MAXPATHLEN];
360 strlcpy(cleaned_name, fname, MAXPATHLEN-1);
361 cleaned_name[MAXPATHLEN-1] = 0;
362 clean_fname(cleaned_name);
363 fname = cleaned_name;
365 bzero(sum,SUM_LENGTH);
367 if (link_stat(fname,&st) != 0) {
369 rprintf(FERROR,"%s: %s\n",
370 fname,strerror(errno));
374 if (S_ISDIR(st.st_mode) && !recurse) {
375 rprintf(FINFO,"skipping directory %s\n",fname);
379 if (one_file_system && st.st_dev != filesystem_dev) {
380 if (skip_filesystem(fname, &st))
384 if (!match_file_name(fname,&st))
388 rprintf(FINFO,"make_file(%s)\n",fname);
390 file = (struct file_struct *)malloc(sizeof(*file));
391 if (!file) out_of_memory("make_file");
392 bzero((char *)file,sizeof(*file));
394 if ((p = strrchr(fname,'/'))) {
395 static char *lastdir;
397 if (lastdir && strcmp(fname, lastdir)==0) {
398 file->dirname = lastdir;
400 file->dirname = strdup(fname);
401 lastdir = file->dirname;
403 file->basename = strdup(p+1);
406 file->dirname = NULL;
407 file->basename = strdup(fname);
410 file->modtime = st.st_mtime;
411 file->length = st.st_size;
412 file->mode = st.st_mode;
413 file->uid = st.st_uid;
414 file->gid = st.st_gid;
415 file->dev = st.st_dev;
416 file->inode = st.st_ino;
418 file->rdev = st.st_rdev;
422 if (S_ISLNK(st.st_mode)) {
424 char lnk[MAXPATHLEN];
425 if ((l=readlink(fname,lnk,MAXPATHLEN-1)) == -1) {
427 rprintf(FERROR,"readlink %s : %s\n",
428 fname,strerror(errno));
432 file->link = strdup(lnk);
436 if (always_checksum) {
437 file->sum = (char *)malloc(MD4_SUM_LENGTH);
438 if (!file->sum) out_of_memory("md4 sum");
439 /* drat. we have to provide a null checksum for non-regular
440 files in order to be compatible with earlier versions
442 if (S_ISREG(st.st_mode)) {
443 file_checksum(fname,file->sum,st.st_size);
445 memset(file->sum, 0, MD4_SUM_LENGTH);
450 static char *lastdir;
451 if (lastdir && strcmp(lastdir, flist_dir)==0) {
452 file->basedir = lastdir;
454 file->basedir = strdup(flist_dir);
455 lastdir = file->basedir;
458 file->basedir = NULL;
461 if (!S_ISDIR(st.st_mode))
462 total_size += st.st_size;
469 static void send_file_name(int f,struct file_list *flist,char *fname,
470 int recursive, unsigned base_flags)
472 struct file_struct *file;
474 file = make_file(fname);
478 if (flist->count >= flist->malloced) {
479 if (flist->malloced < 1000)
480 flist->malloced += 1000;
482 flist->malloced *= 2;
483 flist->files = (struct file_struct **)realloc(flist->files,
484 sizeof(flist->files[0])*
487 out_of_memory("send_file_name");
490 if (strcmp(file->basename,"")) {
491 flist->files[flist->count++] = file;
492 send_file_entry(file,f,base_flags);
495 if (S_ISDIR(file->mode) && recursive) {
496 char **last_exclude_list = local_exclude_list;
497 send_directory(f,flist,f_name(file));
498 local_exclude_list = last_exclude_list;
505 static void send_directory(int f,struct file_list *flist,char *dir)
509 char fname[MAXPATHLEN];
516 rprintf(FERROR,"%s: %s\n",
517 dir,strerror(errno));
521 strlcpy(fname,dir,MAXPATHLEN-1);
523 if (fname[l-1] != '/') {
524 if (l == MAXPATHLEN-1) {
526 rprintf(FERROR,"skipping long-named directory %s\n",fname);
530 strlcat(fname,"/", MAXPATHLEN-1);
533 p = fname + strlen(fname);
536 if (strlen(fname) + strlen(".cvsignore") <= MAXPATHLEN-1) {
537 strcpy(p,".cvsignore");
538 local_exclude_list = make_exclude_list(fname,NULL,0);
541 rprintf(FINFO,"cannot cvs-exclude in long-named directory %s\n",fname);
545 for (di=readdir(d); di; di=readdir(d)) {
546 char *dname = d_name(di);
547 if (strcmp(dname,".")==0 ||
548 strcmp(dname,"..")==0)
550 strlcpy(p,dname,MAXPATHLEN-(l+1));
551 send_file_name(f,flist,fname,recurse,FLAG_DELETE);
559 struct file_list *send_file_list(int f,int argc,char *argv[])
564 char dbuf[MAXPATHLEN];
565 char lastpath[MAXPATHLEN]="";
566 struct file_list *flist;
568 if (verbose && recurse && !am_server && f != -1) {
569 rprintf(FINFO,"building file list ... ");
573 flist = (struct file_list *)malloc(sizeof(flist[0]));
574 if (!flist) out_of_memory("send_file_list");
577 flist->malloced = 1000;
578 flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])*
580 if (!flist->files) out_of_memory("send_file_list");
583 io_start_buffering(f);
586 for (i=0;i<argc;i++) {
587 char fname2[MAXPATHLEN];
588 char *fname = fname2;
590 strlcpy(fname,argv[i],MAXPATHLEN-1);
593 if (l != 1 && fname[l-1] == '/') {
594 strlcat(fname,".",MAXPATHLEN-1);
597 if (link_stat(fname,&st) != 0) {
599 rprintf(FERROR,"%s : %s\n",fname,strerror(errno));
603 if (S_ISDIR(st.st_mode) && !recurse) {
604 rprintf(FINFO,"skipping directory %s\n",fname);
610 if (!relative_paths) {
611 p = strrchr(fname,'/');
620 } else if (f != -1 && (p=strrchr(fname,'/'))) {
621 /* this ensures we send the intermediate directories,
622 thus getting their permissions right */
624 if (strcmp(lastpath,fname)) {
625 strlcpy(lastpath, fname, sizeof(lastpath)-1);
627 for (p=fname+1; (p=strchr(p,'/')); p++) {
629 send_file_name(f, flist, fname, 0, 0);
641 if (getcwd(dbuf,MAXPATHLEN-1) == NULL) {
642 rprintf(FERROR,"getwd : %s\n",strerror(errno));
645 if (chdir(dir) != 0) {
647 rprintf(FERROR,"chdir %s : %s\n",
648 dir,strerror(errno));
653 set_filesystem(fname);
654 send_file_name(f,flist,fname,recurse,FLAG_DELETE);
656 if (chdir(dbuf) != 0) {
657 rprintf(FERROR,"chdir %s : %s\n",
658 dbuf,strerror(errno));
665 set_filesystem(fname);
666 send_file_name(f,flist,fname,recurse,FLAG_DELETE);
670 send_file_entry(NULL,f,0);
673 if (verbose && recurse && !am_server && f != -1)
674 rprintf(FINFO,"done\n");
678 /* now send the uid/gid list. This was introduced in protocol
680 if (f != -1 && remote_version >= 15) {
684 /* if protocol version is >= 17 then send the io_error flag */
685 if (f != -1 && remote_version >= 17) {
686 write_int(f, io_error);
695 rprintf(FINFO,"send_file_list done\n");
701 struct file_list *recv_file_list(int f)
703 struct file_list *flist;
706 if (verbose && recurse && !am_server) {
707 rprintf(FINFO,"receiving file list ... ");
711 flist = (struct file_list *)malloc(sizeof(flist[0]));
716 flist->malloced=1000;
717 flist->files = (struct file_struct **)malloc(sizeof(flist->files[0])*
723 for (flags=read_byte(f); flags; flags=read_byte(f)) {
724 int i = flist->count;
726 if (i >= flist->malloced) {
727 if (flist->malloced < 1000)
728 flist->malloced += 1000;
730 flist->malloced *= 2;
731 flist->files =(struct file_struct **)realloc(flist->files,
732 sizeof(flist->files[0])*
738 receive_file_entry(&flist->files[i],flags,f);
740 if (S_ISREG(flist->files[i]->mode))
741 total_size += flist->files[i]->length;
746 rprintf(FINFO,"recv_file_name(%s)\n",f_name(flist->files[i]));
751 rprintf(FINFO,"received %d names\n",flist->count);
755 if (verbose && recurse && !am_server) {
756 rprintf(FINFO,"done\n");
759 /* now recv the uid/gid list. This was introduced in protocol version 15 */
760 if (f != -1 && remote_version >= 15) {
761 recv_uid_list(f, flist);
764 /* if protocol version is >= 17 then recv the io_error flag */
765 if (f != -1 && remote_version >= 17) {
766 io_error |= read_int(f);
770 rprintf(FINFO,"recv_file_list done\n");
775 out_of_memory("recv_file_list");
776 return NULL; /* not reached */
780 int file_compare(struct file_struct **f1,struct file_struct **f2)
782 if (!(*f1)->basename && !(*f2)->basename) return 0;
783 if (!(*f1)->basename) return -1;
784 if (!(*f2)->basename) return 1;
785 if ((*f1)->dirname == (*f2)->dirname)
786 return strcmp((*f1)->basename, (*f2)->basename);
787 return strcmp(f_name(*f1),f_name(*f2));
791 int flist_find(struct file_list *flist,struct file_struct *f)
793 int low=0,high=flist->count-1;
795 if (flist->count <= 0) return -1;
797 while (low != high) {
798 int mid = (low+high)/2;
799 int ret = file_compare(&flist->files[flist_up(flist, mid)],&f);
800 if (ret == 0) return flist_up(flist, mid);
808 if (file_compare(&flist->files[flist_up(flist,low)],&f) == 0)
809 return flist_up(flist,low);
817 static void free_file(struct file_struct *file)
820 if (file->basename) free(file->basename);
821 if (file->link) free(file->link);
822 if (file->sum) free(file->sum);
823 bzero((char *)file, sizeof(*file));
828 * free up all elements in a flist
830 void flist_free(struct file_list *flist)
833 for (i=1;i<flist->count;i++) {
834 free_file(flist->files[i]);
835 free(flist->files[i]);
837 bzero((char *)flist->files, sizeof(flist->files[0])*flist->count);
839 bzero((char *)flist, sizeof(*flist));
845 * This routine ensures we don't have any duplicate names in our file list.
846 * duplicate names can cause corruption because of the pipelining
848 void clean_flist(struct file_list *flist)
852 if (!flist || flist->count == 0)
855 qsort(flist->files,flist->count,
856 sizeof(flist->files[0]),
857 (int (*)())file_compare);
859 for (i=1;i<flist->count;i++) {
860 if (flist->files[i]->basename &&
861 flist->files[i-1]->basename &&
862 strcmp(f_name(flist->files[i]),
863 f_name(flist->files[i-1])) == 0) {
864 if (verbose > 1 && !am_server)
865 rprintf(FINFO,"removing duplicate name %s from file list %d\n",
866 f_name(flist->files[i-1]),i-1);
867 free_file(flist->files[i]);
874 * return the full filename of a flist entry
876 char *f_name(struct file_struct *f)
878 static char names[10][MAXPATHLEN];
882 if (!f || !f->basename) return NULL;
887 slprintf(p, MAXPATHLEN-1, "%s/%s", f->dirname, f->basename);
889 strlcpy(p, f->basename, MAXPATHLEN-1);