receiver.c

   1 /*
   2  * Routines only used by the receiving process.
   3  *
   4  * Copyright (C) 1996-2000 Andrew Tridgell
   5  * Copyright (C) 1996 Paul Mackerras
   6  * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22
  23 #include "rsync.h"
  24
  25 extern int verbose;
  26 extern int do_xfers;
  27 extern int am_server;
  28 extern int do_progress;
  29 extern int log_before_transfer;
  30 extern int log_format_has_i;
  31 extern int logfile_format_has_i;
  32 extern int csum_length;
  33 extern int read_batch;
  34 extern int write_batch;
  35 extern int batch_gen_fd;
  36 extern int protocol_version;
  37 extern int relative_paths;
  38 extern int preserve_hard_links;
  39 extern int preserve_perms;
  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 append_mode;
  45 extern int sparse_files;
  46 extern int keep_partial;
  47 extern int checksum_seed;
  48 extern int inplace;
  49 extern int delay_updates;
  50 extern struct stats stats;
  51 extern char *log_format;
  52 extern char *tmpdir;
  53 extern char *partial_dir;
  54 extern char *basis_dir[];
  55 extern struct file_list *the_file_list;
  56 extern struct filter_list_struct server_filter_list;
  57
  58 static struct bitbag *delayed_bits = NULL;
  59 static int phase = 0;
  60
  61
  62 /*
  63  * get_tmpname() - create a tmp filename for a given filename
  64  *
  65  *   If a tmpdir is defined, use that as the directory to
  66  *   put it in.  Otherwise, the tmp filename is in the same
  67  *   directory as the given name.  Note that there may be no
  68  *   directory at all in the given name!
  69  *
  70  *   The tmp filename is basically the given filename with a
  71  *   dot prepended, and .XXXXXX appended (for mkstemp() to
  72  *   put its unique gunk in).  Take care to not exceed
  73  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
  74  *   the basename basically becomes 8 chars longer. In that
  75  *   case, the original name is shortened sufficiently to
  76  *   make it all fit.
  77  *
  78  *   Of course, there's no real reason for the tmp name to
  79  *   look like the original, except to satisfy us humans.
  80  *   As long as it's unique, rsync will work.
  81  */
  82
  83 static int get_tmpname(char *fnametmp, char *fname)
  84 {
  85         char *f;
  86         int     length = 0;
  87         int     maxname;
  88
  89         if (tmpdir) {
  90                 /* Note: this can't overflow, so the return value is safe */
  91                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
  92                 fnametmp[length++] = '/';
  93                 fnametmp[length] = '\0';        /* always NULL terminated */
  94         }
  95
  96         if ((f = strrchr(fname, '/')) != NULL) {
  97                 ++f;
  98                 if (!tmpdir) {
  99                         length = f - fname;
 100                         /* copy up to and including the slash */
 101                         strlcpy(fnametmp, fname, length + 1);
 102                 }
 103         } else
 104                 f = fname;
 105         fnametmp[length++] = '.';
 106         fnametmp[length] = '\0';                /* always NULL terminated */
 107
 108         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 109
 110         if (maxname < 1) {
 111                 rprintf(FERROR, "temporary filename too long: %s\n", fname);
 112                 fnametmp[0] = '\0';
 113                 return 0;
 114         }
 115
 116         strlcpy(fnametmp + length, f, maxname);
 117         strcat(fnametmp + length, ".XXXXXX");
 118
 119         return 1;
 120 }
 121
 122
 123 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
 124                         char *fname, int fd, OFF_T total_size)
 125 {
 126         static char file_sum1[MD4_SUM_LENGTH];
 127         static char file_sum2[MD4_SUM_LENGTH];
 128         struct map_struct *mapbuf;
 129         struct sum_struct sum;
 130         int32 len;
 131         OFF_T offset = 0;
 132         OFF_T offset2;
 133         char *data;
 134         int32 i;
 135         char *map = NULL;
 136
 137         read_sum_head(f_in, &sum);
 138
 139         if (fd_r >= 0 && size_r > 0) {
 140                 int32 read_size = MAX(sum.blength * 2, 16*1024);
 141                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
 142                 if (verbose > 2) {
 143                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
 144                                 fname_r, (double)size_r);
 145                 }
 146         } else
 147                 mapbuf = NULL;
 148
 149         sum_init(checksum_seed);
 150
 151         if (append_mode) {
 152                 OFF_T j;
 153                 sum.flength = (OFF_T)sum.count * sum.blength;
 154                 if (sum.remainder)
 155                         sum.flength -= sum.blength - sum.remainder;
 156                 for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
 157                         if (do_progress)
 158                                 show_progress(offset, total_size);
 159                         sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
 160                                    CHUNK_SIZE);
 161                         offset = j;
 162                 }
 163                 if (offset < sum.flength) {
 164                         int32 len = sum.flength - offset;
 165                         if (do_progress)
 166                                 show_progress(offset, total_size);
 167                         sum_update(map_ptr(mapbuf, offset, len), len);
 168                         offset = sum.flength;
 169                 }
 170                 if (fd != -1 && do_lseek(fd, offset, SEEK_SET) != offset) {
 171                         rsyserr(FERROR, errno, "lseek failed on %s",
 172                                 full_fname(fname));
 173                         exit_cleanup(RERR_FILEIO);
 174                 }
 175         }
 176
 177         while ((i = recv_token(f_in, &data)) != 0) {
 178                 if (do_progress)
 179                         show_progress(offset, total_size);
 180
 181                 if (i > 0) {
 182                         if (verbose > 3) {
 183                                 rprintf(FINFO,"data recv %d at %.0f\n",
 184                                         i,(double)offset);
 185                         }
 186
 187                         stats.literal_data += i;
 188                         cleanup_got_literal = 1;
 189
 190                         sum_update(data, i);
 191
 192                         if (fd != -1 && write_file(fd,data,i) != i)
 193                                 goto report_write_error;
 194                         offset += i;
 195                         continue;
 196                 }
 197
 198                 i = -(i+1);
 199                 offset2 = i * (OFF_T)sum.blength;
 200                 len = sum.blength;
 201                 if (i == (int)sum.count-1 && sum.remainder != 0)
 202                         len = sum.remainder;
 203
 204                 stats.matched_data += len;
 205
 206                 if (verbose > 3) {
 207                         rprintf(FINFO,
 208                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
 209                                 i, (long)len, (double)offset2, (double)offset);
 210                 }
 211
 212                 if (mapbuf) {
 213                         map = map_ptr(mapbuf,offset2,len);
 214
 215                         see_token(map, len);
 216                         sum_update(map, len);
 217                 }
 218
 219                 if (inplace) {
 220                         if (offset == offset2 && fd != -1) {
 221                                 if (flush_write_file(fd) < 0)
 222                                         goto report_write_error;
 223                                 offset += len;
 224                                 if (do_lseek(fd, len, SEEK_CUR) != offset) {
 225                                         rsyserr(FERROR, errno,
 226                                                 "lseek failed on %s",
 227                                                 full_fname(fname));
 228                                         exit_cleanup(RERR_FILEIO);
 229                                 }
 230                                 continue;
 231                         }
 232                 }
 233                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
 234                         goto report_write_error;
 235                 offset += len;
 236         }
 237
 238         if (flush_write_file(fd) < 0)
 239                 goto report_write_error;
 240
 241 #ifdef HAVE_FTRUNCATE
 242         if (inplace && fd != -1)
 243                 ftruncate(fd, offset);
 244 #endif
 245
 246         if (do_progress)
 247                 end_progress(total_size);
 248
 249         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
 250             report_write_error:
 251                 rsyserr(FERROR, errno, "write failed on %s",
 252                         full_fname(fname));
 253                 exit_cleanup(RERR_FILEIO);
 254         }
 255
 256         sum_end(file_sum1);
 257
 258         if (mapbuf)
 259                 unmap_file(mapbuf);
 260
 261         read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
 262         if (verbose > 2)
 263                 rprintf(FINFO,"got file_sum\n");
 264         if (fd != -1 && memcmp(file_sum1, file_sum2, MD4_SUM_LENGTH) != 0)
 265                 return 0;
 266         return 1;
 267 }
 268
 269
 270 static void discard_receive_data(int f_in, OFF_T length)
 271 {
 272         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
 273 }
 274
 275 static void handle_delayed_updates(struct file_list *flist, char *local_name)
 276 {
 277         char *fname, *partialptr, numbuf[4];
 278         int i;
 279
 280         for (i = -1; (i = bitbag_next_bit(delayed_bits, i)) >= 0; ) {
 281                 struct file_struct *file = flist->files[i];
 282                 fname = local_name ? local_name : f_name(file, NULL);
 283                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
 284                         if (make_backups && !make_backup(fname))
 285                                 continue;
 286                         if (verbose > 2) {
 287                                 rprintf(FINFO, "renaming %s to %s\n",
 288                                         partialptr, fname);
 289                         }
 290                         /* We don't use robust_rename() here because the
 291                          * partial-dir must be on the same drive. */
 292                         if (do_rename(partialptr, fname) < 0) {
 293                                 rsyserr(FERROR, errno,
 294                                         "rename failed for %s (from %s)",
 295                                         full_fname(fname), partialptr);
 296                         } else {
 297                                 if (remove_sent_files
 298                                     || (preserve_hard_links
 299                                      && file->link_u.links)) {
 300                                         SIVAL(numbuf, 0, i);
 301                                         send_msg(MSG_SUCCESS,numbuf,4);
 302                                 }
 303                                 handle_partial_dir(partialptr, PDIR_DELETE);
 304                         }
 305                 }
 306         }
 307 }
 308
 309 static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
 310 {
 311         while (next_gen_i < desired_i) {
 312                 if (next_gen_i >= 0) {
 313                         rprintf(FINFO,
 314                                 "(No batched update for%s \"%s\")\n",
 315                                 phase ? " resend of" : "",
 316                                 f_name(the_file_list->files[next_gen_i], NULL));
 317                 }
 318                 next_gen_i = read_int(batch_gen_fd);
 319                 if (next_gen_i == -1)
 320                         next_gen_i = the_file_list->count;
 321         }
 322         return next_gen_i;
 323 }
 324
 325
 326 /**
 327  * main routine for receiver process.
 328  *
 329  * Receiver process runs on the same host as the generator process. */
 330 int recv_files(int f_in, struct file_list *flist, char *local_name)
 331 {
 332         int next_gen_i = -1;
 333         int fd1,fd2;
 334         STRUCT_STAT st;
 335         int iflags, xlen;
 336         char *fname, fbuf[MAXPATHLEN];
 337         char xname[MAXPATHLEN];
 338         char fnametmp[MAXPATHLEN];
 339         char *fnamecmp, *partialptr, numbuf[4];
 340         char fnamecmpbuf[MAXPATHLEN];
 341         uchar fnamecmp_type;
 342         struct file_struct *file;
 343         struct stats initial_stats;
 344         int save_make_backups = make_backups;
 345         int itemizing = am_server ? logfile_format_has_i : log_format_has_i;
 346         int max_phase = protocol_version >= 29 ? 2 : 1;
 347         int i, recv_ok;
 348
 349         if (verbose > 2)
 350                 rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
 351
 352         if (flist->hlink_pool) {
 353                 pool_destroy(flist->hlink_pool);
 354                 flist->hlink_pool = NULL;
 355         }
 356
 357         if (delay_updates)
 358                 delayed_bits = bitbag_create(flist->count);
 359
 360         while (1) {
 361                 cleanup_disable();
 362
 363                 i = read_int(f_in);
 364                 if (i == -1) {
 365                         if (read_batch) {
 366                                 get_next_gen_i(batch_gen_fd, next_gen_i,
 367                                                flist->count);
 368                                 next_gen_i = -1;
 369                         }
 370                         if (++phase > max_phase)
 371                                 break;
 372                         csum_length = SUM_LENGTH;
 373                         if (verbose > 2)
 374                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
 375                         if (phase == 2 && delay_updates)
 376                                 handle_delayed_updates(flist, local_name);
 377                         send_msg(MSG_DONE, "", 0);
 378                         if (keep_partial && !partial_dir)
 379                                 make_backups = 0; /* prevents double backup */
 380                         if (append_mode) {
 381                                 append_mode = 0;
 382                                 sparse_files = 0;
 383                         }
 384                         continue;
 385                 }
 386
 387                 iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
 388                                          xname, &xlen);
 389                 if (iflags == ITEM_IS_NEW) /* no-op packet */
 390                         continue;
 391
 392                 file = flist->files[i];
 393                 fname = local_name ? local_name : f_name(file, fbuf);
 394
 395                 if (verbose > 2)
 396                         rprintf(FINFO, "recv_files(%s)\n", fname);
 397
 398                 if (!(iflags & ITEM_TRANSFER)) {
 399                         maybe_log_item(file, iflags, itemizing, xname);
 400                         continue;
 401                 }
 402                 if (phase == 2) {
 403                         rprintf(FERROR,
 404                                 "got transfer request in phase 2 [%s]\n",
 405                                 who_am_i());
 406                         exit_cleanup(RERR_PROTOCOL);
 407                 }
 408
 409                 stats.current_file_index = i;
 410                 stats.num_transferred_files++;
 411                 stats.total_transferred_size += file->length;
 412                 cleanup_got_literal = 0;
 413
 414                 if (server_filter_list.head
 415                     && check_filter(&server_filter_list, fname, 0) < 0) {
 416                         rprintf(FERROR, "attempt to hack rsync failed.\n");
 417                         exit_cleanup(RERR_PROTOCOL);
 418                 }
 419
 420                 if (!do_xfers) { /* log the transfer */
 421                         if (!am_server && log_format)
 422                                 log_item(file, &stats, iflags, NULL);
 423                         if (read_batch)
 424                                 discard_receive_data(f_in, file->length);
 425                         continue;
 426                 }
 427                 if (write_batch < 0) {
 428                         log_item(file, &stats, iflags, NULL);
 429                         if (!am_server)
 430                                 discard_receive_data(f_in, file->length);
 431                         continue;
 432                 }
 433
 434                 if (read_batch) {
 435                         next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
 436                         if (i < next_gen_i) {
 437                                 rprintf(FINFO,
 438                                         "(Skipping batched update for \"%s\")\n",
 439                                         fname);
 440                                 discard_receive_data(f_in, file->length);
 441                                 continue;
 442                         }
 443                         next_gen_i = -1;
 444                 }
 445
 446                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 447
 448                 if (protocol_version >= 29) {
 449                         switch (fnamecmp_type) {
 450                         case FNAMECMP_FNAME:
 451                                 fnamecmp = fname;
 452                                 break;
 453                         case FNAMECMP_PARTIAL_DIR:
 454                                 fnamecmp = partialptr;
 455                                 break;
 456                         case FNAMECMP_BACKUP:
 457                                 fnamecmp = get_backup_name(fname);
 458                                 break;
 459                         case FNAMECMP_FUZZY:
 460                                 if (file->dirname) {
 461                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
 462                                                  file->dirname, xname);
 463                                         fnamecmp = fnamecmpbuf;
 464                                 } else
 465                                         fnamecmp = xname;
 466                                 break;
 467                         default:
 468                                 if (fnamecmp_type >= basis_dir_cnt) {
 469                                         rprintf(FERROR,
 470                                                 "invalid basis_dir index: %d.\n",
 471                                                 fnamecmp_type);
 472                                         exit_cleanup(RERR_PROTOCOL);
 473                                 }
 474                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 475                                          basis_dir[fnamecmp_type], fname);
 476                                 fnamecmp = fnamecmpbuf;
 477                                 break;
 478                         }
 479                         if (!fnamecmp || (server_filter_list.head
 480                           && check_filter(&server_filter_list, fname, 0) < 0))
 481                                 fnamecmp = fname;
 482                 } else {
 483                         /* Reminder: --inplace && --partial-dir are never
 484                          * enabled at the same time. */
 485                         if (inplace && make_backups) {
 486                                 if (!(fnamecmp = get_backup_name(fname)))
 487                                         fnamecmp = fname;
 488                         } else if (partial_dir && partialptr)
 489                                 fnamecmp = partialptr;
 490                         else
 491                                 fnamecmp = fname;
 492                 }
 493
 494                 initial_stats = stats;
 495
 496                 /* open the file */
 497                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 498
 499                 if (fd1 == -1 && protocol_version < 29) {
 500                         if (fnamecmp != fname) {
 501                                 fnamecmp = fname;
 502                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 503                         }
 504
 505                         if (fd1 == -1 && basis_dir[0]) {
 506                                 /* pre-29 allowed only one alternate basis */
 507                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 508                                          basis_dir[0], fname);
 509                                 fnamecmp = fnamecmpbuf;
 510                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 511                         }
 512                 }
 513
 514                 if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
 515                         rsyserr(FERROR, errno, "fstat %s failed",
 516                                 full_fname(fnamecmp));
 517                         discard_receive_data(f_in, file->length);
 518                         close(fd1);
 519                         continue;
 520                 }
 521
 522                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
 523                         /* this special handling for directories
 524                          * wouldn't be necessary if robust_rename()
 525                          * and the underlying robust_unlink could cope
 526                          * with directories
 527                          */
 528                         rprintf(FERROR,"recv_files: %s is a directory\n",
 529                                 full_fname(fnamecmp));
 530                         discard_receive_data(f_in, file->length);
 531                         close(fd1);
 532                         continue;
 533                 }
 534
 535                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
 536                         close(fd1);
 537                         fd1 = -1;
 538                 }
 539
 540                 /* If we're not preserving permissions, change the file-list's
 541                  * mode based on the local permissions and some heuristics. */
 542                 if (!preserve_perms) {
 543                         int exists = fd1 != -1;
 544                         file->mode = dest_mode(file->mode, st.st_mode, exists);
 545                 }
 546
 547                 /* We now check to see if we are writing file "inplace" */
 548                 if (inplace)  {
 549                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
 550                         if (fd2 == -1) {
 551                                 rsyserr(FERROR, errno, "open %s failed",
 552                                         full_fname(fname));
 553                                 discard_receive_data(f_in, file->length);
 554                                 if (fd1 != -1)
 555                                         close(fd1);
 556                                 continue;
 557                         }
 558                 } else {
 559                         if (!get_tmpname(fnametmp,fname)) {
 560                                 discard_receive_data(f_in, file->length);
 561                                 if (fd1 != -1)
 562                                         close(fd1);
 563                                 continue;
 564                         }
 565
 566                         /* we initially set the perms without the
 567                          * setuid/setgid bits to ensure that there is no race
 568                          * condition. They are then correctly updated after
 569                          * the lchown. Thanks to snabb@epipe.fi for pointing
 570                          * this out.  We also set it initially without group
 571                          * access because of a similar race condition. */
 572                         fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 573
 574                         /* in most cases parent directories will already exist
 575                          * because their information should have been previously
 576                          * transferred, but that may not be the case with -R */
 577                         if (fd2 == -1 && relative_paths && errno == ENOENT
 578                             && create_directory_path(fnametmp) == 0) {
 579                                 /* Get back to name with XXXXXX in it. */
 580                                 get_tmpname(fnametmp, fname);
 581                                 fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 582                         }
 583                         if (fd2 == -1) {
 584                                 rsyserr(FERROR, errno, "mkstemp %s failed",
 585                                         full_fname(fnametmp));
 586                                 discard_receive_data(f_in, file->length);
 587                                 if (fd1 != -1)
 588                                         close(fd1);
 589                                 continue;
 590                         }
 591
 592                         if (keep_partial)
 593                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
 594                 }
 595
 596                 /* log the transfer */
 597                 if (log_before_transfer)
 598                         log_item(file, &initial_stats, iflags, NULL);
 599                 else if (!am_server && verbose && do_progress)
 600                         rprintf(FINFO, "%s\n", fname);
 601
 602                 /* recv file data */
 603                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
 604                                        fname, fd2, file->length);
 605
 606                 if (!log_before_transfer)
 607                         log_item(file, &initial_stats, iflags, NULL);
 608
 609                 if (fd1 != -1)
 610                         close(fd1);
 611                 if (close(fd2) < 0) {
 612                         rsyserr(FERROR, errno, "close failed on %s",
 613                                 full_fname(fnametmp));
 614                         exit_cleanup(RERR_FILEIO);
 615                 }
 616
 617                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
 618                         char *temp_copy_name;
 619                         if (partialptr == fname)
 620                                 partialptr = temp_copy_name = NULL;
 621                         else if (*partial_dir == '/')
 622                                 temp_copy_name = NULL;
 623                         else
 624                                 temp_copy_name = partialptr;
 625                         finish_transfer(fname, fnametmp, temp_copy_name,
 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 }