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 do_xfers;
  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 write_batch;
  34 extern int batch_gen_fd;
  35 extern int protocol_version;
  36 extern int relative_paths;
  37 extern int keep_dirlinks;
  38 extern int preserve_hard_links;
  39 extern int preserve_perms;
  40 extern int io_error;
  41 extern int basis_dir_cnt;
  42 extern int make_backups;
  43 extern int cleanup_got_literal;
  44 extern int remove_sent_files;
  45 extern int module_id;
  46 extern int ignore_errors;
  47 extern int orig_umask;
  48 extern int append_mode;
  49 extern int sparse_files;
  50 extern int keep_partial;
  51 extern int checksum_seed;
  52 extern int inplace;
  53 extern int delay_updates;
  54 extern struct stats stats;
  55 extern char *log_format;
  56 extern char *tmpdir;
  57 extern char *partial_dir;
  58 extern char *basis_dir[];
  59 extern struct file_list *the_file_list;
  60 extern struct filter_list_struct server_filter_list;
  61
  62 static struct bitbag *delayed_bits = NULL;
  63 static int phase = 0;
  64
  65
  66 /*
  67  * get_tmpname() - create a tmp filename for a given filename
  68  *
  69  *   If a tmpdir is defined, use that as the directory to
  70  *   put it in.  Otherwise, the tmp filename is in the same
  71  *   directory as the given name.  Note that there may be no
  72  *   directory at all in the given name!
  73  *
  74  *   The tmp filename is basically the given filename with a
  75  *   dot prepended, and .XXXXXX appended (for mkstemp() to
  76  *   put its unique gunk in).  Take care to not exceed
  77  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
  78  *   the basename basically becomes 8 chars longer. In that
  79  *   case, the original name is shortened sufficiently to
  80  *   make it all fit.
  81  *
  82  *   Of course, there's no real reason for the tmp name to
  83  *   look like the original, except to satisfy us humans.
  84  *   As long as it's unique, rsync will work.
  85  */
  86
  87 static int get_tmpname(char *fnametmp, char *fname)
  88 {
  89         char *f;
  90         int     length = 0;
  91         int     maxname;
  92
  93         if (tmpdir) {
  94                 /* Note: this can't overflow, so the return value is safe */
  95                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
  96                 fnametmp[length++] = '/';
  97                 fnametmp[length] = '\0';        /* always NULL terminated */
  98         }
  99
 100         if ((f = strrchr(fname, '/')) != NULL) {
 101                 ++f;
 102                 if (!tmpdir) {
 103                         length = f - fname;
 104                         /* copy up to and including the slash */
 105                         strlcpy(fnametmp, fname, length + 1);
 106                 }
 107         } else
 108                 f = fname;
 109         fnametmp[length++] = '.';
 110         fnametmp[length] = '\0';                /* always NULL terminated */
 111
 112         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 113
 114         if (maxname < 1) {
 115                 rprintf(FERROR, "temporary filename too long: %s\n", fname);
 116                 fnametmp[0] = '\0';
 117                 return 0;
 118         }
 119
 120         strlcpy(fnametmp + length, f, maxname);
 121         strcat(fnametmp + length, ".XXXXXX");
 122
 123         return 1;
 124 }
 125
 126
 127 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
 128                         char *fname, int fd, OFF_T total_size)
 129 {
 130         static char file_sum1[MD4_SUM_LENGTH];
 131         static char file_sum2[MD4_SUM_LENGTH];
 132         struct map_struct *mapbuf;
 133         struct sum_struct sum;
 134         int32 len;
 135         OFF_T offset = 0;
 136         OFF_T offset2;
 137         char *data;
 138         int32 i;
 139         char *map = NULL;
 140
 141         read_sum_head(f_in, &sum);
 142
 143         if (fd_r >= 0 && size_r > 0) {
 144                 int32 read_size = MAX(sum.blength * 2, 16*1024);
 145                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
 146                 if (verbose > 2) {
 147                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
 148                                 fname_r, (double)size_r);
 149                 }
 150         } else
 151                 mapbuf = NULL;
 152
 153         sum_init(checksum_seed);
 154
 155         if (append_mode) {
 156                 OFF_T j;
 157                 sum.flength = (OFF_T)sum.count * sum.blength;
 158                 if (sum.remainder)
 159                         sum.flength -= sum.blength - sum.remainder;
 160                 for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
 161                         if (do_progress)
 162                                 show_progress(offset, total_size);
 163                         sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
 164                                    CHUNK_SIZE);
 165                         offset = j;
 166                 }
 167                 if (offset < sum.flength) {
 168                         int32 len = sum.flength - offset;
 169                         if (do_progress)
 170                                 show_progress(offset, total_size);
 171                         sum_update(map_ptr(mapbuf, offset, len), len);
 172                         offset = sum.flength;
 173                 }
 174                 if (fd != -1 && do_lseek(fd, offset, SEEK_SET) != offset) {
 175                         rsyserr(FERROR, errno, "lseek failed on %s",
 176                                 full_fname(fname));
 177                         exit_cleanup(RERR_FILEIO);
 178                 }
 179         }
 180
 181         while ((i = recv_token(f_in, &data)) != 0) {
 182                 if (do_progress)
 183                         show_progress(offset, total_size);
 184
 185                 if (i > 0) {
 186                         if (verbose > 3) {
 187                                 rprintf(FINFO,"data recv %d at %.0f\n",
 188                                         i,(double)offset);
 189                         }
 190
 191                         stats.literal_data += i;
 192                         cleanup_got_literal = 1;
 193
 194                         sum_update(data, i);
 195
 196                         if (fd != -1 && write_file(fd,data,i) != i)
 197                                 goto report_write_error;
 198                         offset += i;
 199                         continue;
 200                 }
 201
 202                 i = -(i+1);
 203                 offset2 = i * (OFF_T)sum.blength;
 204                 len = sum.blength;
 205                 if (i == (int)sum.count-1 && sum.remainder != 0)
 206                         len = sum.remainder;
 207
 208                 stats.matched_data += len;
 209
 210                 if (verbose > 3) {
 211                         rprintf(FINFO,
 212                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
 213                                 i, (long)len, (double)offset2, (double)offset);
 214                 }
 215
 216                 if (mapbuf) {
 217                         map = map_ptr(mapbuf,offset2,len);
 218
 219                         see_token(map, len);
 220                         sum_update(map, len);
 221                 }
 222
 223                 if (inplace) {
 224                         if (offset == offset2 && fd != -1) {
 225                                 if (flush_write_file(fd) < 0)
 226                                         goto report_write_error;
 227                                 offset += len;
 228                                 if (do_lseek(fd, len, SEEK_CUR) != offset) {
 229                                         rsyserr(FERROR, errno,
 230                                                 "lseek failed on %s",
 231                                                 full_fname(fname));
 232                                         exit_cleanup(RERR_FILEIO);
 233                                 }
 234                                 continue;
 235                         }
 236                 }
 237                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
 238                         goto report_write_error;
 239                 offset += len;
 240         }
 241
 242         if (flush_write_file(fd) < 0)
 243                 goto report_write_error;
 244
 245 #ifdef HAVE_FTRUNCATE
 246         if (inplace && fd != -1)
 247                 ftruncate(fd, offset);
 248 #endif
 249
 250         if (do_progress)
 251                 end_progress(total_size);
 252
 253         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
 254             report_write_error:
 255                 rsyserr(FERROR, errno, "write failed on %s",
 256                         full_fname(fname));
 257                 exit_cleanup(RERR_FILEIO);
 258         }
 259
 260         sum_end(file_sum1);
 261
 262         if (mapbuf)
 263                 unmap_file(mapbuf);
 264
 265         read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
 266         if (verbose > 2)
 267                 rprintf(FINFO,"got file_sum\n");
 268         if (fd != -1 && memcmp(file_sum1, file_sum2, MD4_SUM_LENGTH) != 0)
 269                 return 0;
 270         return 1;
 271 }
 272
 273
 274 static void discard_receive_data(int f_in, OFF_T length)
 275 {
 276         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
 277 }
 278
 279 static void handle_delayed_updates(struct file_list *flist, char *local_name)
 280 {
 281         char *fname, *partialptr, numbuf[4];
 282         int i;
 283
 284         for (i = -1; (i = bitbag_next_bit(delayed_bits, i)) >= 0; ) {
 285                 struct file_struct *file = flist->files[i];
 286                 fname = local_name ? local_name : f_name(file, NULL);
 287                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
 288                         if (make_backups && !make_backup(fname))
 289                                 continue;
 290                         if (verbose > 2) {
 291                                 rprintf(FINFO, "renaming %s to %s\n",
 292                                         partialptr, fname);
 293                         }
 294                         /* We don't use robust_rename() here because the
 295                          * partial-dir must be on the same drive. */
 296                         if (do_rename(partialptr, fname) < 0) {
 297                                 rsyserr(FERROR, errno,
 298                                         "rename failed for %s (from %s)",
 299                                         full_fname(fname), partialptr);
 300                         } else {
 301                                 if (remove_sent_files
 302                                     || (preserve_hard_links
 303                                      && file->link_u.links)) {
 304                                         SIVAL(numbuf, 0, i);
 305                                         send_msg(MSG_SUCCESS,numbuf,4);
 306                                 }
 307                                 handle_partial_dir(partialptr, PDIR_DELETE);
 308                         }
 309                 }
 310         }
 311 }
 312
 313 static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
 314 {
 315         while (next_gen_i < desired_i) {
 316                 if (next_gen_i >= 0) {
 317                         rprintf(FINFO,
 318                                 "(No batched update for%s \"%s\")\n",
 319                                 phase ? " resend of" : "",
 320                                 f_name(the_file_list->files[next_gen_i], NULL));
 321                 }
 322                 next_gen_i = read_int(batch_gen_fd);
 323                 if (next_gen_i == -1)
 324                         next_gen_i = the_file_list->count;
 325         }
 326         return next_gen_i;
 327 }
 328
 329
 330 /**
 331  * main routine for receiver process.
 332  *
 333  * Receiver process runs on the same host as the generator process. */
 334 int recv_files(int f_in, struct file_list *flist, char *local_name)
 335 {
 336         int next_gen_i = -1;
 337         int fd1,fd2;
 338         STRUCT_STAT st;
 339         int iflags, xlen;
 340         char *fname, fbuf[MAXPATHLEN];
 341         char xname[MAXPATHLEN];
 342         char fnametmp[MAXPATHLEN];
 343         char *fnamecmp, *partialptr, numbuf[4];
 344         char fnamecmpbuf[MAXPATHLEN];
 345         uchar fnamecmp_type;
 346         struct file_struct *file;
 347         struct stats initial_stats;
 348         int save_make_backups = make_backups;
 349         int itemizing = am_daemon ? daemon_log_format_has_i
 350                       : !am_server && log_format_has_i;
 351         int max_phase = protocol_version >= 29 ? 2 : 1;
 352         int i, recv_ok;
 353
 354         if (verbose > 2)
 355                 rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
 356
 357         if (flist->hlink_pool) {
 358                 pool_destroy(flist->hlink_pool);
 359                 flist->hlink_pool = NULL;
 360         }
 361
 362         if (delay_updates)
 363                 delayed_bits = bitbag_create(flist->count);
 364
 365         while (1) {
 366                 cleanup_disable();
 367
 368                 i = read_int(f_in);
 369                 if (i == -1) {
 370                         if (read_batch) {
 371                                 get_next_gen_i(batch_gen_fd, next_gen_i,
 372                                                flist->count);
 373                                 next_gen_i = -1;
 374                         }
 375                         if (++phase > max_phase)
 376                                 break;
 377                         csum_length = SUM_LENGTH;
 378                         if (verbose > 2)
 379                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
 380                         if (phase == 2 && delay_updates)
 381                                 handle_delayed_updates(flist, local_name);
 382                         send_msg(MSG_DONE, "", 0);
 383                         if (keep_partial && !partial_dir)
 384                                 make_backups = 0; /* prevents double backup */
 385                         if (append_mode) {
 386                                 append_mode = 0;
 387                                 sparse_files = 0;
 388                         }
 389                         continue;
 390                 }
 391
 392                 iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
 393                                          xname, &xlen);
 394                 if (iflags == ITEM_IS_NEW) /* no-op packet */
 395                         continue;
 396
 397                 file = flist->files[i];
 398                 fname = local_name ? local_name : f_name(file, fbuf);
 399
 400                 if (verbose > 2)
 401                         rprintf(FINFO, "recv_files(%s)\n", fname);
 402
 403                 if (!(iflags & ITEM_TRANSFER)) {
 404                         maybe_log_item(file, iflags, itemizing, xname);
 405                         continue;
 406                 }
 407                 if (phase == 2) {
 408                         rprintf(FERROR,
 409                                 "got transfer request in phase 2 [%s]\n",
 410                                 who_am_i());
 411                         exit_cleanup(RERR_PROTOCOL);
 412                 }
 413
 414                 stats.current_file_index = i;
 415                 stats.num_transferred_files++;
 416                 stats.total_transferred_size += file->length;
 417                 cleanup_got_literal = 0;
 418
 419                 if (server_filter_list.head
 420                     && check_filter(&server_filter_list, fname, 0) < 0) {
 421                         rprintf(FERROR, "attempt to hack rsync failed.\n");
 422                         exit_cleanup(RERR_PROTOCOL);
 423                 }
 424
 425                 if (!do_xfers) { /* log the transfer */
 426                         if (!am_server && log_format)
 427                                 log_item(file, &stats, iflags, NULL);
 428                         if (read_batch)
 429                                 discard_receive_data(f_in, file->length);
 430                         continue;
 431                 }
 432                 if (write_batch < 0) {
 433                         log_item(file, &stats, iflags, NULL);
 434                         if (!am_server)
 435                                 discard_receive_data(f_in, file->length);
 436                         continue;
 437                 }
 438
 439                 if (read_batch) {
 440                         next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
 441                         if (i < next_gen_i) {
 442                                 rprintf(FINFO,
 443                                         "(Skipping batched update for \"%s\")\n",
 444                                         fname);
 445                                 discard_receive_data(f_in, file->length);
 446                                 continue;
 447                         }
 448                         next_gen_i = -1;
 449                 }
 450
 451                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 452
 453                 if (protocol_version >= 29) {
 454                         switch (fnamecmp_type) {
 455                         case FNAMECMP_FNAME:
 456                                 fnamecmp = fname;
 457                                 break;
 458                         case FNAMECMP_PARTIAL_DIR:
 459                                 fnamecmp = partialptr;
 460                                 break;
 461                         case FNAMECMP_BACKUP:
 462                                 fnamecmp = get_backup_name(fname);
 463                                 break;
 464                         case FNAMECMP_FUZZY:
 465                                 if (file->dirname) {
 466                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
 467                                                  file->dirname, xname);
 468                                         fnamecmp = fnamecmpbuf;
 469                                 } else
 470                                         fnamecmp = xname;
 471                                 break;
 472                         default:
 473                                 if (fnamecmp_type >= basis_dir_cnt) {
 474                                         rprintf(FERROR,
 475                                                 "invalid basis_dir index: %d.\n",
 476                                                 fnamecmp_type);
 477                                         exit_cleanup(RERR_PROTOCOL);
 478                                 }
 479                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 480                                          basis_dir[fnamecmp_type], fname);
 481                                 fnamecmp = fnamecmpbuf;
 482                                 break;
 483                         }
 484                         if (!fnamecmp || (server_filter_list.head
 485                           && check_filter(&server_filter_list, fname, 0) < 0))
 486                                 fnamecmp = fname;
 487                 } else {
 488                         /* Reminder: --inplace && --partial-dir are never
 489                          * enabled at the same time. */
 490                         if (inplace && make_backups) {
 491                                 if (!(fnamecmp = get_backup_name(fname)))
 492                                         fnamecmp = fname;
 493                         } else if (partial_dir && partialptr)
 494                                 fnamecmp = partialptr;
 495                         else
 496                                 fnamecmp = fname;
 497                 }
 498
 499                 initial_stats = stats;
 500
 501                 /* open the file */
 502                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 503
 504                 if (fd1 == -1 && protocol_version < 29) {
 505                         if (fnamecmp != fname) {
 506                                 fnamecmp = fname;
 507                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 508                         }
 509
 510                         if (fd1 == -1 && basis_dir[0]) {
 511                                 /* pre-29 allowed only one alternate basis */
 512                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 513                                          basis_dir[0], fname);
 514                                 fnamecmp = fnamecmpbuf;
 515                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 516                         }
 517                 }
 518
 519                 if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
 520                         rsyserr(FERROR, errno, "fstat %s failed",
 521                                 full_fname(fnamecmp));
 522                         discard_receive_data(f_in, file->length);
 523                         close(fd1);
 524                         continue;
 525                 }
 526
 527                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
 528                         /* this special handling for directories
 529                          * wouldn't be necessary if robust_rename()
 530                          * and the underlying robust_unlink could cope
 531                          * with directories
 532                          */
 533                         rprintf(FERROR,"recv_files: %s is a directory\n",
 534                                 full_fname(fnamecmp));
 535                         discard_receive_data(f_in, file->length);
 536                         close(fd1);
 537                         continue;
 538                 }
 539
 540                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
 541                         close(fd1);
 542                         fd1 = -1;
 543                 }
 544
 545                 /* If we're not preserving permissions, change the file-list's
 546                  * mode based on the local permissions and some heuristics. */
 547                 if (!preserve_perms) {
 548                         int exists = fd1 != -1;
 549                         file->mode = dest_mode(file->mode, st.st_mode, exists);
 550                 }
 551
 552                 /* We now check to see if we are writing file "inplace" */
 553                 if (inplace)  {
 554                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
 555                         if (fd2 == -1) {
 556                                 rsyserr(FERROR, errno, "open %s failed",
 557                                         full_fname(fname));
 558                                 discard_receive_data(f_in, file->length);
 559                                 if (fd1 != -1)
 560                                         close(fd1);
 561                                 continue;
 562                         }
 563                 } else {
 564                         if (!get_tmpname(fnametmp,fname)) {
 565                                 discard_receive_data(f_in, file->length);
 566                                 if (fd1 != -1)
 567                                         close(fd1);
 568                                 continue;
 569                         }
 570
 571                         /* we initially set the perms without the
 572                          * setuid/setgid bits to ensure that there is no race
 573                          * condition. They are then correctly updated after
 574                          * the lchown. Thanks to snabb@epipe.fi for pointing
 575                          * this out.  We also set it initially without group
 576                          * access because of a similar race condition. */
 577                         fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 578
 579                         /* in most cases parent directories will already exist
 580                          * because their information should have been previously
 581                          * transferred, but that may not be the case with -R */
 582                         if (fd2 == -1 && relative_paths && errno == ENOENT
 583                             && create_directory_path(fnametmp, orig_umask) == 0) {
 584                                 /* Get back to name with XXXXXX in it. */
 585                                 get_tmpname(fnametmp, fname);
 586                                 fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 587                         }
 588                         if (fd2 == -1) {
 589                                 rsyserr(FERROR, errno, "mkstemp %s failed",
 590                                         full_fname(fnametmp));
 591                                 discard_receive_data(f_in, file->length);
 592                                 if (fd1 != -1)
 593                                         close(fd1);
 594                                 continue;
 595                         }
 596
 597                         if (keep_partial)
 598                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
 599                 }
 600
 601                 /* log the transfer */
 602                 if (log_before_transfer)
 603                         log_item(file, &initial_stats, iflags, NULL);
 604                 else if (!am_server && verbose && do_progress)
 605                         rprintf(FINFO, "%s\n", fname);
 606
 607                 /* recv file data */
 608                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
 609                                        fname, fd2, file->length);
 610
 611                 if (!log_before_transfer)
 612                         log_item(file, &initial_stats, iflags, NULL);
 613
 614                 if (fd1 != -1)
 615                         close(fd1);
 616                 if (close(fd2) < 0) {
 617                         rsyserr(FERROR, errno, "close failed on %s",
 618                                 full_fname(fnametmp));
 619                         exit_cleanup(RERR_FILEIO);
 620                 }
 621
 622                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
 623                         if (partialptr == fname || *partial_dir == '/')
 624                                 partialptr = NULL;
 625                         finish_transfer(fname, fnametmp, partialptr,
 626                                         file, recv_ok, 1);
 627                         if (fnamecmp == partialptr) {
 628                                 do_unlink(partialptr);
 629                                 handle_partial_dir(partialptr, PDIR_DELETE);
 630                         }
 631                 } else if (keep_partial && partialptr
 632                     && handle_partial_dir(partialptr, PDIR_CREATE)) {
 633                         finish_transfer(partialptr, fnametmp, NULL,
 634                                         file, recv_ok, !partial_dir);
 635                         if (delay_updates && recv_ok) {
 636                                 bitbag_set_bit(delayed_bits, i);
 637                                 recv_ok = -1;
 638                         }
 639                 } else {
 640                         partialptr = NULL;
 641                         do_unlink(fnametmp);
 642                 }
 643
 644                 cleanup_disable();
 645
 646                 if (recv_ok > 0) {
 647                         if (remove_sent_files
 648                             || (preserve_hard_links && file->link_u.links)) {
 649                                 SIVAL(numbuf, 0, i);
 650                                 send_msg(MSG_SUCCESS, numbuf, 4);
 651                         }
 652                 } else if (!recv_ok) {
 653                         int msgtype = phase || read_batch ? FERROR : FINFO;
 654                         if (msgtype == FERROR || verbose) {
 655                                 char *errstr, *redostr, *keptstr;
 656                                 if (!(keep_partial && partialptr) && !inplace)
 657                                         keptstr = "discarded";
 658                                 else if (partial_dir)
 659                                         keptstr = "put into partial-dir";
 660                                 else
 661                                         keptstr = "retained";
 662                                 if (msgtype == FERROR) {
 663                                         errstr = "ERROR";
 664                                         redostr = "";
 665                                 } else {
 666                                         errstr = "WARNING";
 667                                         redostr = " (will try again)";
 668                                 }
 669                                 rprintf(msgtype,
 670                                         "%s: %s failed verification -- update %s%s.\n",
 671                                         errstr, fname, keptstr, redostr);
 672                         }
 673                         if (!phase) {
 674                                 SIVAL(numbuf, 0, i);
 675                                 send_msg(MSG_REDO, numbuf, 4);
 676                         }
 677                 }
 678         }
 679         make_backups = save_make_backups;
 680
 681         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
 682                 handle_delayed_updates(flist, local_name);
 683
 684         if (verbose > 2)
 685                 rprintf(FINFO,"recv_files finished\n");
 686
 687         return 0;
 688 }