- Fixed a potential crash if the receiver couldn't open the basis file
[rsync.git] / receiver.c
1 /* -*- c-file-style: "linux" -*-
2
3    Copyright (C) 1996-2000 by Andrew Tridgell
4    Copyright (C) Paul Mackerras 1996
5
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.
10
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.
15
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.
19 */
20
21 #include "rsync.h"
22
23 extern int verbose;
24 extern int dry_run;
25 extern int am_daemon;
26 extern int am_server;
27 extern int do_progress;
28 extern int log_before_transfer;
29 extern int log_format_has_i;
30 extern int daemon_log_format_has_i;
31 extern int csum_length;
32 extern int read_batch;
33 extern int batch_gen_fd;
34 extern int protocol_version;
35 extern int relative_paths;
36 extern int keep_dirlinks;
37 extern int preserve_hard_links;
38 extern int preserve_perms;
39 extern int io_error;
40 extern int basis_dir_cnt;
41 extern int make_backups;
42 extern int cleanup_got_literal;
43 extern int remove_sent_files;
44 extern int module_id;
45 extern int ignore_errors;
46 extern int orig_umask;
47 extern int keep_partial;
48 extern int checksum_seed;
49 extern int inplace;
50 extern int delay_updates;
51 extern struct stats stats;
52 extern char *log_format;
53 extern char *tmpdir;
54 extern char *partial_dir;
55 extern char *basis_dir[];
56 extern struct file_list *the_file_list;
57 extern struct filter_list_struct server_filter_list;
58
59 #define SLOT_SIZE       (16*1024)       /* Desired size in bytes */
60 #define PER_SLOT_BITS   (SLOT_SIZE * 8) /* Number of bits per slot */
61 #define PER_SLOT_INTS   (SLOT_SIZE / 4) /* Number of int32s per slot */
62
63 static uint32 **delayed_bits = NULL;
64 static int delayed_slot_cnt = 0;
65 static int phase = 0;
66
67 static void init_delayed_bits(int max_ndx)
68 {
69         delayed_slot_cnt = (max_ndx + PER_SLOT_BITS - 1) / PER_SLOT_BITS;
70
71         if (!(delayed_bits = (uint32**)calloc(delayed_slot_cnt, sizeof (uint32*))))
72                 out_of_memory("set_delayed_bit");
73 }
74
75 static void set_delayed_bit(int ndx)
76 {
77         int slot = ndx / PER_SLOT_BITS;
78         ndx %= PER_SLOT_BITS;
79
80         if (!delayed_bits[slot]) {
81                 if (!(delayed_bits[slot] = (uint32*)calloc(PER_SLOT_INTS, 4)))
82                         out_of_memory("set_delayed_bit");
83         }
84
85         delayed_bits[slot][ndx/32] |= 1u << (ndx % 32);
86 }
87
88 /* Call this with -1 to start checking from 0.  Returns -1 at the end. */
89 static int next_delayed_bit(int after)
90 {
91         uint32 bits, mask;
92         int i, ndx = after + 1;
93         int slot = ndx / PER_SLOT_BITS;
94         ndx %= PER_SLOT_BITS;
95
96         mask = (1u << (ndx % 32)) - 1;
97         for (i = ndx / 32; slot < delayed_slot_cnt; slot++, i = mask = 0) {
98                 if (!delayed_bits[slot])
99                         continue;
100                 for ( ; i < PER_SLOT_INTS; i++, mask = 0) {
101                         if (!(bits = delayed_bits[slot][i] & ~mask))
102                                 continue;
103                         /* The xor magic figures out the lowest enabled bit in
104                          * bits, and the switch quickly computes log2(bit). */
105                         switch (bits ^ (bits & (bits-1))) {
106 #define LOG2(n) case 1u << n: return slot*PER_SLOT_BITS + i*32 + n
107                             LOG2(0);  LOG2(1);  LOG2(2);  LOG2(3);
108                             LOG2(4);  LOG2(5);  LOG2(6);  LOG2(7);
109                             LOG2(8);  LOG2(9);  LOG2(10); LOG2(11);
110                             LOG2(12); LOG2(13); LOG2(14); LOG2(15);
111                             LOG2(16); LOG2(17); LOG2(18); LOG2(19);
112                             LOG2(20); LOG2(21); LOG2(22); LOG2(23);
113                             LOG2(24); LOG2(25); LOG2(26); LOG2(27);
114                             LOG2(28); LOG2(29); LOG2(30); LOG2(31);
115                         }
116                         return -1; /* impossible... */
117                 }
118         }
119
120         return -1;
121 }
122
123
124 /*
125  * get_tmpname() - create a tmp filename for a given filename
126  *
127  *   If a tmpdir is defined, use that as the directory to
128  *   put it in.  Otherwise, the tmp filename is in the same
129  *   directory as the given name.  Note that there may be no
130  *   directory at all in the given name!
131  *
132  *   The tmp filename is basically the given filename with a
133  *   dot prepended, and .XXXXXX appended (for mkstemp() to
134  *   put its unique gunk in).  Take care to not exceed
135  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
136  *   the basename basically becomes 8 chars longer. In that
137  *   case, the original name is shortened sufficiently to
138  *   make it all fit.
139  *
140  *   Of course, there's no real reason for the tmp name to
141  *   look like the original, except to satisfy us humans.
142  *   As long as it's unique, rsync will work.
143  */
144
145 static int get_tmpname(char *fnametmp, char *fname)
146 {
147         char *f;
148         int     length = 0;
149         int     maxname;
150
151         if (tmpdir) {
152                 /* Note: this can't overflow, so the return value is safe */
153                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
154                 fnametmp[length++] = '/';
155                 fnametmp[length] = '\0';        /* always NULL terminated */
156         }
157
158         if ((f = strrchr(fname, '/')) != NULL) {
159                 ++f;
160                 if (!tmpdir) {
161                         length = f - fname;
162                         /* copy up to and including the slash */
163                         strlcpy(fnametmp, fname, length + 1);
164                 }
165         } else
166                 f = fname;
167         fnametmp[length++] = '.';
168         fnametmp[length] = '\0';                /* always NULL terminated */
169
170         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
171
172         if (maxname < 1) {
173                 rprintf(FERROR, "temporary filename too long: %s\n",
174                         safe_fname(fname));
175                 fnametmp[0] = '\0';
176                 return 0;
177         }
178
179         strlcpy(fnametmp + length, f, maxname);
180         strcat(fnametmp + length, ".XXXXXX");
181
182         return 1;
183 }
184
185
186 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
187                         char *fname, int fd, OFF_T total_size)
188 {
189         static char file_sum1[MD4_SUM_LENGTH];
190         static char file_sum2[MD4_SUM_LENGTH];
191         struct map_struct *mapbuf;
192         struct sum_struct sum;
193         int32 len;
194         OFF_T offset = 0;
195         OFF_T offset2;
196         char *data;
197         int32 i;
198         char *map = NULL;
199
200         read_sum_head(f_in, &sum);
201
202         if (fd_r >= 0 && size_r > 0) {
203                 int32 read_size = MAX(sum.blength * 2, 16*1024);
204                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
205                 if (verbose > 2) {
206                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
207                                 safe_fname(fname_r), (double)size_r);
208                 }
209         } else
210                 mapbuf = NULL;
211
212         sum_init(checksum_seed);
213
214         while ((i = recv_token(f_in, &data)) != 0) {
215                 if (do_progress)
216                         show_progress(offset, total_size);
217
218                 if (i > 0) {
219                         if (verbose > 3) {
220                                 rprintf(FINFO,"data recv %d at %.0f\n",
221                                         i,(double)offset);
222                         }
223
224                         stats.literal_data += i;
225                         cleanup_got_literal = 1;
226
227                         sum_update(data, i);
228
229                         if (fd != -1 && write_file(fd,data,i) != i)
230                                 goto report_write_error;
231                         offset += i;
232                         continue;
233                 }
234
235                 i = -(i+1);
236                 offset2 = i * (OFF_T)sum.blength;
237                 len = sum.blength;
238                 if (i == (int)sum.count-1 && sum.remainder != 0)
239                         len = sum.remainder;
240
241                 stats.matched_data += len;
242
243                 if (verbose > 3) {
244                         rprintf(FINFO,
245                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
246                                 i, (long)len, (double)offset2, (double)offset);
247                 }
248
249                 if (mapbuf) {
250                         map = map_ptr(mapbuf,offset2,len);
251
252                         see_token(map, len);
253                         sum_update(map, len);
254                 }
255
256                 if (inplace) {
257                         if (offset == offset2 && fd != -1) {
258                                 if (flush_write_file(fd) < 0)
259                                         goto report_write_error;
260                                 offset += len;
261                                 if (do_lseek(fd, len, SEEK_CUR) != offset) {
262                                         rsyserr(FERROR, errno,
263                                                 "lseek failed on %s",
264                                                 full_fname(fname));
265                                         exit_cleanup(RERR_FILEIO);
266                                 }
267                                 continue;
268                         }
269                 }
270                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
271                         goto report_write_error;
272                 offset += len;
273         }
274
275         if (flush_write_file(fd) < 0)
276                 goto report_write_error;
277
278 #ifdef HAVE_FTRUNCATE
279         if (inplace && fd != -1)
280                 ftruncate(fd, offset);
281 #endif
282
283         if (do_progress)
284                 end_progress(total_size);
285
286         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
287             report_write_error:
288                 rsyserr(FERROR, errno, "write failed on %s",
289                         full_fname(fname));
290                 exit_cleanup(RERR_FILEIO);
291         }
292
293         sum_end(file_sum1);
294
295         if (mapbuf)
296                 unmap_file(mapbuf);
297
298         read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
299         if (verbose > 2)
300                 rprintf(FINFO,"got file_sum\n");
301         if (fd != -1 && memcmp(file_sum1, file_sum2, MD4_SUM_LENGTH) != 0)
302                 return 0;
303         return 1;
304 }
305
306
307 static void discard_receive_data(int f_in, OFF_T length)
308 {
309         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
310 }
311
312 static void handle_delayed_updates(struct file_list *flist, char *local_name)
313 {
314         char *fname, *partialptr, numbuf[4];
315         int i;
316
317         for (i = -1; (i = next_delayed_bit(i)) >= 0; ) {
318                 struct file_struct *file = flist->files[i];
319                 fname = local_name ? local_name : f_name(file);
320                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
321                         if (make_backups && !make_backup(fname))
322                                 continue;
323                         if (verbose > 2) {
324                                 rprintf(FINFO, "renaming %s to %s\n",
325                                         safe_fname(partialptr),
326                                         safe_fname(fname));
327                         }
328                         if (do_rename(partialptr, fname) < 0) {
329                                 rsyserr(FERROR, errno,
330                                         "rename failed for %s (from %s)",
331                                         full_fname(fname),
332                                         safe_fname(partialptr));
333                         } else {
334                                 if (remove_sent_files
335                                     || (preserve_hard_links
336                                      && file->link_u.links)) {
337                                         SIVAL(numbuf, 0, i);
338                                         send_msg(MSG_SUCCESS,numbuf,4);
339                                 }
340                                 handle_partial_dir(partialptr,
341                                                    PDIR_DELETE);
342                         }
343                 }
344         }
345 }
346
347 static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
348 {
349         while (next_gen_i < desired_i) {
350                 if (next_gen_i >= 0) {
351                         rprintf(FINFO,
352                                 "(No batched update for%s \"%s\")\n",
353                                 phase ? " resend of" : "",
354                                 safe_fname(f_name(the_file_list->files[next_gen_i])));
355                 }
356                 next_gen_i = read_int(batch_gen_fd);
357                 if (next_gen_i == -1)
358                         next_gen_i = the_file_list->count;
359         }
360         return next_gen_i;
361 }
362
363
364 /**
365  * main routine for receiver process.
366  *
367  * Receiver process runs on the same host as the generator process. */
368 int recv_files(int f_in, struct file_list *flist, char *local_name)
369 {
370         int next_gen_i = -1;
371         int fd1,fd2;
372         STRUCT_STAT st;
373         int iflags, xlen;
374         char *fname, fbuf[MAXPATHLEN];
375         char xname[MAXPATHLEN];
376         char fnametmp[MAXPATHLEN];
377         char *fnamecmp, *partialptr, numbuf[4];
378         char fnamecmpbuf[MAXPATHLEN];
379         uchar fnamecmp_type;
380         struct file_struct *file;
381         struct stats initial_stats;
382         int save_make_backups = make_backups;
383         int itemizing = am_daemon ? daemon_log_format_has_i
384                       : !am_server && log_format_has_i;
385         int max_phase = protocol_version >= 29 ? 2 : 1;
386         int i, recv_ok;
387
388         if (verbose > 2)
389                 rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
390
391         if (flist->hlink_pool) {
392                 pool_destroy(flist->hlink_pool);
393                 flist->hlink_pool = NULL;
394         }
395
396         if (delay_updates)
397                 init_delayed_bits(flist->count);
398
399         while (1) {
400                 cleanup_disable();
401
402                 i = read_int(f_in);
403                 if (i == -1) {
404                         if (read_batch) {
405                                 get_next_gen_i(batch_gen_fd, next_gen_i,
406                                                flist->count);
407                                 next_gen_i = -1;
408                         }
409                         if (++phase > max_phase)
410                                 break;
411                         csum_length = SUM_LENGTH;
412                         if (verbose > 2)
413                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
414                         if (phase == 2 && delay_updates)
415                                 handle_delayed_updates(flist, local_name);
416                         send_msg(MSG_DONE, "", 0);
417                         if (keep_partial && !partial_dir)
418                                 make_backups = 0; /* prevents double backup */
419                         continue;
420                 }
421
422                 iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
423                                          xname, &xlen);
424                 if (iflags == ITEM_IS_NEW) /* no-op packet */
425                         continue;
426
427                 file = flist->files[i];
428                 fname = local_name ? local_name : f_name_to(file, fbuf);
429
430                 if (verbose > 2)
431                         rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));
432
433                 if (!(iflags & ITEM_TRANSFER)) {
434                         maybe_log_item(file, iflags, itemizing, xname);
435                         continue;
436                 }
437                 if (phase == 2) {
438                         rprintf(FERROR,
439                                 "got transfer request in phase 2 [%s]\n",
440                                 who_am_i());
441                         exit_cleanup(RERR_PROTOCOL);
442                 }
443
444                 stats.current_file_index = i;
445                 stats.num_transferred_files++;
446                 stats.total_transferred_size += file->length;
447                 cleanup_got_literal = 0;
448
449                 if (server_filter_list.head
450                     && check_filter(&server_filter_list, fname, 0) < 0) {
451                         rprintf(FERROR, "attempt to hack rsync failed.\n");
452                         exit_cleanup(RERR_PROTOCOL);
453                 }
454
455                 if (dry_run) { /* log the transfer */
456                         if (!am_server && log_format)
457                                 log_item(file, &stats, iflags, NULL);
458                         if (read_batch)
459                                 discard_receive_data(f_in, file->length);
460                         continue;
461                 }
462
463                 if (read_batch) {
464                         next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
465                         if (i < next_gen_i) {
466                                 rprintf(FINFO, "(Skipping batched update for \"%s\")\n",
467                                         safe_fname(fname));
468                                 discard_receive_data(f_in, file->length);
469                                 continue;
470                         }
471                         next_gen_i = -1;
472                 }
473
474                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
475
476                 if (protocol_version >= 29) {
477                         switch (fnamecmp_type) {
478                         case FNAMECMP_FNAME:
479                                 fnamecmp = fname;
480                                 break;
481                         case FNAMECMP_PARTIAL_DIR:
482                                 fnamecmp = partialptr;
483                                 break;
484                         case FNAMECMP_BACKUP:
485                                 fnamecmp = get_backup_name(fname);
486                                 break;
487                         case FNAMECMP_FUZZY:
488                                 if (file->dirname) {
489                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
490                                                  file->dirname, xname);
491                                         fnamecmp = fnamecmpbuf;
492                                 } else
493                                         fnamecmp = xname;
494                                 break;
495                         default:
496                                 if (fnamecmp_type >= basis_dir_cnt) {
497                                         rprintf(FERROR,
498                                                 "invalid basis_dir index: %d.\n",
499                                                 fnamecmp_type);
500                                         exit_cleanup(RERR_PROTOCOL);
501                                 }
502                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
503                                          basis_dir[fnamecmp_type], fname);
504                                 fnamecmp = fnamecmpbuf;
505                                 break;
506                         }
507                         if (!fnamecmp || (server_filter_list.head
508                           && check_filter(&server_filter_list, fname, 0) < 0))
509                                 fnamecmp = fname;
510                 } else {
511                         /* Reminder: --inplace && --partial-dir are never
512                          * enabled at the same time. */
513                         if (inplace && make_backups) {
514                                 if (!(fnamecmp = get_backup_name(fname)))
515                                         fnamecmp = fname;
516                         } else if (partial_dir && partialptr)
517                                 fnamecmp = partialptr;
518                         else
519                                 fnamecmp = fname;
520                 }
521
522                 initial_stats = stats;
523
524                 /* open the file */
525                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
526
527                 if (fd1 == -1 && protocol_version < 29) {
528                         if (fnamecmp != fname) {
529                                 fnamecmp = fname;
530                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
531                         }
532
533                         if (fd1 == -1 && basis_dir[0]) {
534                                 /* pre-29 allowed only one alternate basis */
535                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
536                                          basis_dir[0], fname);
537                                 fnamecmp = fnamecmpbuf;
538                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
539                         }
540                 }
541
542                 if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
543                         rsyserr(FERROR, errno, "fstat %s failed",
544                                 full_fname(fnamecmp));
545                         discard_receive_data(f_in, file->length);
546                         close(fd1);
547                         continue;
548                 }
549
550                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
551                         /* this special handling for directories
552                          * wouldn't be necessary if robust_rename()
553                          * and the underlying robust_unlink could cope
554                          * with directories
555                          */
556                         rprintf(FERROR,"recv_files: %s is a directory\n",
557                                 full_fname(fnamecmp));
558                         discard_receive_data(f_in, file->length);
559                         close(fd1);
560                         continue;
561                 }
562
563                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
564                         close(fd1);
565                         fd1 = -1;
566                 }
567
568                 if (fd1 != -1 && !preserve_perms) {
569                         /* if the file exists already and we aren't preserving
570                          * permissions then act as though the remote end sent
571                          * us the file permissions we already have */
572                         file->mode = st.st_mode;
573                 }
574
575                 /* We now check to see if we are writing file "inplace" */
576                 if (inplace)  {
577                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0);
578                         if (fd2 == -1) {
579                                 rsyserr(FERROR, errno, "open %s failed",
580                                         full_fname(fname));
581                                 discard_receive_data(f_in, file->length);
582                                 if (fd1 != -1)
583                                         close(fd1);
584                                 continue;
585                         }
586                 } else {
587                         if (!get_tmpname(fnametmp,fname)) {
588                                 discard_receive_data(f_in, file->length);
589                                 if (fd1 != -1)
590                                         close(fd1);
591                                 continue;
592                         }
593
594                         /* we initially set the perms without the
595                          * setuid/setgid bits to ensure that there is no race
596                          * condition. They are then correctly updated after
597                          * the lchown. Thanks to snabb@epipe.fi for pointing
598                          * this out.  We also set it initially without group
599                          * access because of a similar race condition. */
600                         fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
601
602                         /* in most cases parent directories will already exist
603                          * because their information should have been previously
604                          * transferred, but that may not be the case with -R */
605                         if (fd2 == -1 && relative_paths && errno == ENOENT
606                             && create_directory_path(fnametmp, orig_umask) == 0) {
607                                 /* Get back to name with XXXXXX in it. */
608                                 get_tmpname(fnametmp, fname);
609                                 fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
610                         }
611                         if (fd2 == -1) {
612                                 rsyserr(FERROR, errno, "mkstemp %s failed",
613                                         full_fname(fnametmp));
614                                 discard_receive_data(f_in, file->length);
615                                 if (fd1 != -1)
616                                         close(fd1);
617                                 continue;
618                         }
619
620                         if (partialptr)
621                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
622                 }
623
624                 /* log the transfer */
625                 if (log_before_transfer)
626                         log_item(file, &initial_stats, iflags, NULL);
627                 else if (!am_server && verbose && do_progress)
628                         rprintf(FINFO, "%s\n", safe_fname(fname));
629
630                 /* recv file data */
631                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
632                                        fname, fd2, file->length);
633
634                 if (!log_before_transfer)
635                         log_item(file, &initial_stats, iflags, NULL);
636
637                 if (fd1 != -1)
638                         close(fd1);
639                 if (close(fd2) < 0) {
640                         rsyserr(FERROR, errno, "close failed on %s",
641                                 full_fname(fnametmp));
642                         exit_cleanup(RERR_FILEIO);
643                 }
644
645                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
646                         finish_transfer(fname, fnametmp, file, recv_ok, 1);
647                         if (partialptr != fname && fnamecmp == partialptr) {
648                                 do_unlink(partialptr);
649                                 handle_partial_dir(partialptr, PDIR_DELETE);
650                         }
651                 } else if (keep_partial && partialptr
652                     && handle_partial_dir(partialptr, PDIR_CREATE)) {
653                         finish_transfer(partialptr, fnametmp, file, recv_ok,
654                                         !partial_dir);
655                         if (delay_updates && recv_ok) {
656                                 set_delayed_bit(i);
657                                 recv_ok = -1;
658                         }
659                 } else {
660                         partialptr = NULL;
661                         do_unlink(fnametmp);
662                 }
663
664                 cleanup_disable();
665
666                 if (recv_ok > 0) {
667                         if (remove_sent_files
668                             || (preserve_hard_links && file->link_u.links)) {
669                                 SIVAL(numbuf, 0, i);
670                                 send_msg(MSG_SUCCESS, numbuf, 4);
671                         }
672                 } else if (!recv_ok) {
673                         int msgtype = phase || read_batch ? FERROR : FINFO;
674                         if (msgtype == FERROR || verbose) {
675                                 char *errstr, *redostr, *keptstr;
676                                 if (!(keep_partial && partialptr) && !inplace)
677                                         keptstr = "discarded";
678                                 else if (partial_dir)
679                                         keptstr = "put into partial-dir";
680                                 else
681                                         keptstr = "retained";
682                                 if (msgtype == FERROR) {
683                                         errstr = "ERROR";
684                                         redostr = "";
685                                 } else {
686                                         errstr = "WARNING";
687                                         redostr = " (will try again)";
688                                 }
689                                 rprintf(msgtype,
690                                         "%s: %s failed verification -- update %s%s.\n",
691                                         errstr, safe_fname(fname),
692                                         keptstr, redostr);
693                         }
694                         if (!phase) {
695                                 SIVAL(numbuf, 0, i);
696                                 send_msg(MSG_REDO, numbuf, 4);
697                         }
698                 }
699         }
700         make_backups = save_make_backups;
701
702         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
703                 handle_delayed_updates(flist, local_name);
704
705         if (verbose > 2)
706                 rprintf(FINFO,"recv_files finished\n");
707
708         return 0;
709 }