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 keep_partial;
  50 extern int checksum_seed;
  51 extern int inplace;
  52 extern int delay_updates;
  53 extern struct stats stats;
  54 extern char *log_format;
  55 extern char *tmpdir;
  56 extern char *partial_dir;
  57 extern char *basis_dir[];
  58 extern struct file_list *the_file_list;
  59 extern struct filter_list_struct server_filter_list;
  60
  61 #define SLOT_SIZE       (16*1024)       /* Desired size in bytes */
  62 #define PER_SLOT_BITS   (SLOT_SIZE * 8) /* Number of bits per slot */
  63 #define PER_SLOT_INTS   (SLOT_SIZE / 4) /* Number of int32s per slot */
  64
  65 static uint32 **delayed_bits = NULL;
  66 static int delayed_slot_cnt = 0;
  67 static int phase = 0;
  68
  69 static void init_delayed_bits(int max_ndx)
  70 {
  71         delayed_slot_cnt = (max_ndx + PER_SLOT_BITS - 1) / PER_SLOT_BITS;
  72
  73         if (!(delayed_bits = (uint32**)calloc(delayed_slot_cnt, sizeof (uint32*))))
  74                 out_of_memory("set_delayed_bit");
  75 }
  76
  77 static void set_delayed_bit(int ndx)
  78 {
  79         int slot = ndx / PER_SLOT_BITS;
  80         ndx %= PER_SLOT_BITS;
  81
  82         if (!delayed_bits[slot]) {
  83                 if (!(delayed_bits[slot] = (uint32*)calloc(PER_SLOT_INTS, 4)))
  84                         out_of_memory("set_delayed_bit");
  85         }
  86
  87         delayed_bits[slot][ndx/32] |= 1u << (ndx % 32);
  88 }
  89
  90 /* Call this with -1 to start checking from 0.  Returns -1 at the end. */
  91 static int next_delayed_bit(int after)
  92 {
  93         uint32 bits, mask;
  94         int i, ndx = after + 1;
  95         int slot = ndx / PER_SLOT_BITS;
  96         ndx %= PER_SLOT_BITS;
  97
  98         mask = (1u << (ndx % 32)) - 1;
  99         for (i = ndx / 32; slot < delayed_slot_cnt; slot++, i = mask = 0) {
 100                 if (!delayed_bits[slot])
 101                         continue;
 102                 for ( ; i < PER_SLOT_INTS; i++, mask = 0) {
 103                         if (!(bits = delayed_bits[slot][i] & ~mask))
 104                                 continue;
 105                         /* The xor magic figures out the lowest enabled bit in
 106                          * bits, and the switch quickly computes log2(bit). */
 107                         switch (bits ^ (bits & (bits-1))) {
 108 #define LOG2(n) case 1u << n: return slot*PER_SLOT_BITS + i*32 + n
 109                             LOG2(0);  LOG2(1);  LOG2(2);  LOG2(3);
 110                             LOG2(4);  LOG2(5);  LOG2(6);  LOG2(7);
 111                             LOG2(8);  LOG2(9);  LOG2(10); LOG2(11);
 112                             LOG2(12); LOG2(13); LOG2(14); LOG2(15);
 113                             LOG2(16); LOG2(17); LOG2(18); LOG2(19);
 114                             LOG2(20); LOG2(21); LOG2(22); LOG2(23);
 115                             LOG2(24); LOG2(25); LOG2(26); LOG2(27);
 116                             LOG2(28); LOG2(29); LOG2(30); LOG2(31);
 117                         }
 118                         return -1; /* impossible... */
 119                 }
 120         }
 121
 122         return -1;
 123 }
 124
 125
 126 /*
 127  * get_tmpname() - create a tmp filename for a given filename
 128  *
 129  *   If a tmpdir is defined, use that as the directory to
 130  *   put it in.  Otherwise, the tmp filename is in the same
 131  *   directory as the given name.  Note that there may be no
 132  *   directory at all in the given name!
 133  *
 134  *   The tmp filename is basically the given filename with a
 135  *   dot prepended, and .XXXXXX appended (for mkstemp() to
 136  *   put its unique gunk in).  Take care to not exceed
 137  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
 138  *   the basename basically becomes 8 chars longer. In that
 139  *   case, the original name is shortened sufficiently to
 140  *   make it all fit.
 141  *
 142  *   Of course, there's no real reason for the tmp name to
 143  *   look like the original, except to satisfy us humans.
 144  *   As long as it's unique, rsync will work.
 145  */
 146
 147 static int get_tmpname(char *fnametmp, char *fname)
 148 {
 149         char *f;
 150         int     length = 0;
 151         int     maxname;
 152
 153         if (tmpdir) {
 154                 /* Note: this can't overflow, so the return value is safe */
 155                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
 156                 fnametmp[length++] = '/';
 157                 fnametmp[length] = '\0';        /* always NULL terminated */
 158         }
 159
 160         if ((f = strrchr(fname, '/')) != NULL) {
 161                 ++f;
 162                 if (!tmpdir) {
 163                         length = f - fname;
 164                         /* copy up to and including the slash */
 165                         strlcpy(fnametmp, fname, length + 1);
 166                 }
 167         } else
 168                 f = fname;
 169         fnametmp[length++] = '.';
 170         fnametmp[length] = '\0';                /* always NULL terminated */
 171
 172         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 173
 174         if (maxname < 1) {
 175                 rprintf(FERROR, "temporary filename too long: %s\n",
 176                         safe_fname(fname));
 177                 fnametmp[0] = '\0';
 178                 return 0;
 179         }
 180
 181         strlcpy(fnametmp + length, f, maxname);
 182         strcat(fnametmp + length, ".XXXXXX");
 183
 184         return 1;
 185 }
 186
 187
 188 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
 189                         char *fname, int fd, OFF_T total_size)
 190 {
 191         static char file_sum1[MD4_SUM_LENGTH];
 192         static char file_sum2[MD4_SUM_LENGTH];
 193         struct map_struct *mapbuf;
 194         struct sum_struct sum;
 195         int32 len;
 196         OFF_T offset = 0;
 197         OFF_T offset2;
 198         char *data;
 199         int32 i;
 200         char *map = NULL;
 201
 202         read_sum_head(f_in, &sum);
 203
 204         if (fd_r >= 0 && size_r > 0) {
 205                 int32 read_size = MAX(sum.blength * 2, 16*1024);
 206                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
 207                 if (verbose > 2) {
 208                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
 209                                 safe_fname(fname_r), (double)size_r);
 210                 }
 211         } else
 212                 mapbuf = NULL;
 213
 214         sum_init(checksum_seed);
 215
 216         if (append_mode) {
 217                 OFF_T j;
 218                 sum.flength = (OFF_T)sum.count * sum.blength;
 219                 if (sum.remainder)
 220                         sum.flength -= sum.blength - sum.remainder;
 221                 for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
 222                         if (do_progress)
 223                                 show_progress(offset, total_size);
 224                         sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
 225                                    CHUNK_SIZE);
 226                         offset = j;
 227                 }
 228                 if (offset < sum.flength) {
 229                         int32 len = sum.flength - offset;
 230                         if (do_progress)
 231                                 show_progress(offset, total_size);
 232                         sum_update(map_ptr(mapbuf, offset, len), len);
 233                         offset = sum.flength;
 234                 }
 235                 if (fd != -1 && do_lseek(fd, offset, SEEK_SET) != offset) {
 236                         rsyserr(FERROR, errno, "lseek failed on %s",
 237                                 full_fname(fname));
 238                         exit_cleanup(RERR_FILEIO);
 239                 }
 240         }
 241
 242         while ((i = recv_token(f_in, &data)) != 0) {
 243                 if (do_progress)
 244                         show_progress(offset, total_size);
 245
 246                 if (i > 0) {
 247                         if (verbose > 3) {
 248                                 rprintf(FINFO,"data recv %d at %.0f\n",
 249                                         i,(double)offset);
 250                         }
 251
 252                         stats.literal_data += i;
 253                         cleanup_got_literal = 1;
 254
 255                         sum_update(data, i);
 256
 257                         if (fd != -1 && write_file(fd,data,i) != i)
 258                                 goto report_write_error;
 259                         offset += i;
 260                         continue;
 261                 }
 262
 263                 i = -(i+1);
 264                 offset2 = i * (OFF_T)sum.blength;
 265                 len = sum.blength;
 266                 if (i == (int)sum.count-1 && sum.remainder != 0)
 267                         len = sum.remainder;
 268
 269                 stats.matched_data += len;
 270
 271                 if (verbose > 3) {
 272                         rprintf(FINFO,
 273                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
 274                                 i, (long)len, (double)offset2, (double)offset);
 275                 }
 276
 277                 if (mapbuf) {
 278                         map = map_ptr(mapbuf,offset2,len);
 279
 280                         see_token(map, len);
 281                         sum_update(map, len);
 282                 }
 283
 284                 if (inplace) {
 285                         if (offset == offset2 && fd != -1) {
 286                                 if (flush_write_file(fd) < 0)
 287                                         goto report_write_error;
 288                                 offset += len;
 289                                 if (do_lseek(fd, len, SEEK_CUR) != offset) {
 290                                         rsyserr(FERROR, errno,
 291                                                 "lseek failed on %s",
 292                                                 full_fname(fname));
 293                                         exit_cleanup(RERR_FILEIO);
 294                                 }
 295                                 continue;
 296                         }
 297                 }
 298                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
 299                         goto report_write_error;
 300                 offset += len;
 301         }
 302
 303         if (flush_write_file(fd) < 0)
 304                 goto report_write_error;
 305
 306 #ifdef HAVE_FTRUNCATE
 307         if (inplace && fd != -1)
 308                 ftruncate(fd, offset);
 309 #endif
 310
 311         if (do_progress)
 312                 end_progress(total_size);
 313
 314         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
 315             report_write_error:
 316                 rsyserr(FERROR, errno, "write failed on %s",
 317                         full_fname(fname));
 318                 exit_cleanup(RERR_FILEIO);
 319         }
 320
 321         sum_end(file_sum1);
 322
 323         if (mapbuf)
 324                 unmap_file(mapbuf);
 325
 326         read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
 327         if (verbose > 2)
 328                 rprintf(FINFO,"got file_sum\n");
 329         if (fd != -1 && memcmp(file_sum1, file_sum2, MD4_SUM_LENGTH) != 0)
 330                 return 0;
 331         return 1;
 332 }
 333
 334
 335 static void discard_receive_data(int f_in, OFF_T length)
 336 {
 337         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
 338 }
 339
 340 static void handle_delayed_updates(struct file_list *flist, char *local_name)
 341 {
 342         char *fname, *partialptr, numbuf[4];
 343         int i;
 344
 345         for (i = -1; (i = next_delayed_bit(i)) >= 0; ) {
 346                 struct file_struct *file = flist->files[i];
 347                 fname = local_name ? local_name : f_name(file);
 348                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
 349                         if (make_backups && !make_backup(fname))
 350                                 continue;
 351                         if (verbose > 2) {
 352                                 rprintf(FINFO, "renaming %s to %s\n",
 353                                         safe_fname(partialptr),
 354                                         safe_fname(fname));
 355                         }
 356                         if (do_rename(partialptr, fname) < 0) {
 357                                 rsyserr(FERROR, errno,
 358                                         "rename failed for %s (from %s)",
 359                                         full_fname(fname),
 360                                         safe_fname(partialptr));
 361                         } else {
 362                                 if (remove_sent_files
 363                                     || (preserve_hard_links
 364                                      && file->link_u.links)) {
 365                                         SIVAL(numbuf, 0, i);
 366                                         send_msg(MSG_SUCCESS,numbuf,4);
 367                                 }
 368                                 handle_partial_dir(partialptr,
 369                                                    PDIR_DELETE);
 370                         }
 371                 }
 372         }
 373 }
 374
 375 static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
 376 {
 377         while (next_gen_i < desired_i) {
 378                 if (next_gen_i >= 0) {
 379                         rprintf(FINFO,
 380                                 "(No batched update for%s \"%s\")\n",
 381                                 phase ? " resend of" : "",
 382                                 safe_fname(f_name(the_file_list->files[next_gen_i])));
 383                 }
 384                 next_gen_i = read_int(batch_gen_fd);
 385                 if (next_gen_i == -1)
 386                         next_gen_i = the_file_list->count;
 387         }
 388         return next_gen_i;
 389 }
 390
 391
 392 /**
 393  * main routine for receiver process.
 394  *
 395  * Receiver process runs on the same host as the generator process. */
 396 int recv_files(int f_in, struct file_list *flist, char *local_name)
 397 {
 398         int next_gen_i = -1;
 399         int fd1,fd2;
 400         STRUCT_STAT st;
 401         int iflags, xlen;
 402         char *fname, fbuf[MAXPATHLEN];
 403         char xname[MAXPATHLEN];
 404         char fnametmp[MAXPATHLEN];
 405         char *fnamecmp, *partialptr, numbuf[4];
 406         char fnamecmpbuf[MAXPATHLEN];
 407         uchar fnamecmp_type;
 408         struct file_struct *file;
 409         struct stats initial_stats;
 410         int save_make_backups = make_backups;
 411         int itemizing = am_daemon ? daemon_log_format_has_i
 412                       : !am_server && log_format_has_i;
 413         int max_phase = protocol_version >= 29 ? 2 : 1;
 414         int i, recv_ok;
 415
 416         if (verbose > 2)
 417                 rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
 418
 419         if (flist->hlink_pool) {
 420                 pool_destroy(flist->hlink_pool);
 421                 flist->hlink_pool = NULL;
 422         }
 423
 424         if (delay_updates)
 425                 init_delayed_bits(flist->count);
 426
 427         while (1) {
 428                 cleanup_disable();
 429
 430                 i = read_int(f_in);
 431                 if (i == -1) {
 432                         if (read_batch) {
 433                                 get_next_gen_i(batch_gen_fd, next_gen_i,
 434                                                flist->count);
 435                                 next_gen_i = -1;
 436                         }
 437                         if (++phase > max_phase)
 438                                 break;
 439                         csum_length = SUM_LENGTH;
 440                         if (verbose > 2)
 441                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
 442                         if (phase == 2 && delay_updates)
 443                                 handle_delayed_updates(flist, local_name);
 444                         send_msg(MSG_DONE, "", 0);
 445                         if (keep_partial && !partial_dir)
 446                                 make_backups = 0; /* prevents double backup */
 447                         append_mode = 0;
 448                         continue;
 449                 }
 450
 451                 iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
 452                                          xname, &xlen);
 453                 if (iflags == ITEM_IS_NEW) /* no-op packet */
 454                         continue;
 455
 456                 file = flist->files[i];
 457                 fname = local_name ? local_name : f_name_to(file, fbuf);
 458
 459                 if (verbose > 2)
 460                         rprintf(FINFO, "recv_files(%s)\n", safe_fname(fname));
 461
 462                 if (!(iflags & ITEM_TRANSFER)) {
 463                         maybe_log_item(file, iflags, itemizing, xname);
 464                         continue;
 465                 }
 466                 if (phase == 2) {
 467                         rprintf(FERROR,
 468                                 "got transfer request in phase 2 [%s]\n",
 469                                 who_am_i());
 470                         exit_cleanup(RERR_PROTOCOL);
 471                 }
 472
 473                 stats.current_file_index = i;
 474                 stats.num_transferred_files++;
 475                 stats.total_transferred_size += file->length;
 476                 cleanup_got_literal = 0;
 477
 478                 if (server_filter_list.head
 479                     && check_filter(&server_filter_list, fname, 0) < 0) {
 480                         rprintf(FERROR, "attempt to hack rsync failed.\n");
 481                         exit_cleanup(RERR_PROTOCOL);
 482                 }
 483
 484                 if (!do_xfers) { /* log the transfer */
 485                         if (!am_server && log_format)
 486                                 log_item(file, &stats, iflags, NULL);
 487                         if (read_batch)
 488                                 discard_receive_data(f_in, file->length);
 489                         continue;
 490                 }
 491                 if (write_batch < 0) {
 492                         log_item(file, &stats, iflags, NULL);
 493                         if (!am_server)
 494                                 discard_receive_data(f_in, file->length);
 495                         continue;
 496                 }
 497
 498                 if (read_batch) {
 499                         next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
 500                         if (i < next_gen_i) {
 501                                 rprintf(FINFO, "(Skipping batched update for \"%s\")\n",
 502                                         safe_fname(fname));
 503                                 discard_receive_data(f_in, file->length);
 504                                 continue;
 505                         }
 506                         next_gen_i = -1;
 507                 }
 508
 509                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 510
 511                 if (protocol_version >= 29) {
 512                         switch (fnamecmp_type) {
 513                         case FNAMECMP_FNAME:
 514                                 fnamecmp = fname;
 515                                 break;
 516                         case FNAMECMP_PARTIAL_DIR:
 517                                 fnamecmp = partialptr;
 518                                 break;
 519                         case FNAMECMP_BACKUP:
 520                                 fnamecmp = get_backup_name(fname);
 521                                 break;
 522                         case FNAMECMP_FUZZY:
 523                                 if (file->dirname) {
 524                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
 525                                                  file->dirname, xname);
 526                                         fnamecmp = fnamecmpbuf;
 527                                 } else
 528                                         fnamecmp = xname;
 529                                 break;
 530                         default:
 531                                 if (fnamecmp_type >= basis_dir_cnt) {
 532                                         rprintf(FERROR,
 533                                                 "invalid basis_dir index: %d.\n",
 534                                                 fnamecmp_type);
 535                                         exit_cleanup(RERR_PROTOCOL);
 536                                 }
 537                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 538                                          basis_dir[fnamecmp_type], fname);
 539                                 fnamecmp = fnamecmpbuf;
 540                                 break;
 541                         }
 542                         if (!fnamecmp || (server_filter_list.head
 543                           && check_filter(&server_filter_list, fname, 0) < 0))
 544                                 fnamecmp = fname;
 545                 } else {
 546                         /* Reminder: --inplace && --partial-dir are never
 547                          * enabled at the same time. */
 548                         if (inplace && make_backups) {
 549                                 if (!(fnamecmp = get_backup_name(fname)))
 550                                         fnamecmp = fname;
 551                         } else if (partial_dir && partialptr)
 552                                 fnamecmp = partialptr;
 553                         else
 554                                 fnamecmp = fname;
 555                 }
 556
 557                 initial_stats = stats;
 558
 559                 /* open the file */
 560                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 561
 562                 if (fd1 == -1 && protocol_version < 29) {
 563                         if (fnamecmp != fname) {
 564                                 fnamecmp = fname;
 565                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 566                         }
 567
 568                         if (fd1 == -1 && basis_dir[0]) {
 569                                 /* pre-29 allowed only one alternate basis */
 570                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 571                                          basis_dir[0], fname);
 572                                 fnamecmp = fnamecmpbuf;
 573                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 574                         }
 575                 }
 576
 577                 if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
 578                         rsyserr(FERROR, errno, "fstat %s failed",
 579                                 full_fname(fnamecmp));
 580                         discard_receive_data(f_in, file->length);
 581                         close(fd1);
 582                         continue;
 583                 }
 584
 585                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
 586                         /* this special handling for directories
 587                          * wouldn't be necessary if robust_rename()
 588                          * and the underlying robust_unlink could cope
 589                          * with directories
 590                          */
 591                         rprintf(FERROR,"recv_files: %s is a directory\n",
 592                                 full_fname(fnamecmp));
 593                         discard_receive_data(f_in, file->length);
 594                         close(fd1);
 595                         continue;
 596                 }
 597
 598                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
 599                         close(fd1);
 600                         fd1 = -1;
 601                 }
 602
 603                 if (fd1 != -1 && !preserve_perms) {
 604                         /* if the file exists already and we aren't preserving
 605                          * permissions then act as though the remote end sent
 606                          * us the file permissions we already have */
 607                         file->mode = st.st_mode;
 608                 }
 609
 610                 /* We now check to see if we are writing file "inplace" */
 611                 if (inplace)  {
 612                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
 613                         if (fd2 == -1) {
 614                                 rsyserr(FERROR, errno, "open %s failed",
 615                                         full_fname(fname));
 616                                 discard_receive_data(f_in, file->length);
 617                                 if (fd1 != -1)
 618                                         close(fd1);
 619                                 continue;
 620                         }
 621                 } else {
 622                         if (!get_tmpname(fnametmp,fname)) {
 623                                 discard_receive_data(f_in, file->length);
 624                                 if (fd1 != -1)
 625                                         close(fd1);
 626                                 continue;
 627                         }
 628
 629                         /* we initially set the perms without the
 630                          * setuid/setgid bits to ensure that there is no race
 631                          * condition. They are then correctly updated after
 632                          * the lchown. Thanks to snabb@epipe.fi for pointing
 633                          * this out.  We also set it initially without group
 634                          * access because of a similar race condition. */
 635                         fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 636
 637                         /* in most cases parent directories will already exist
 638                          * because their information should have been previously
 639                          * transferred, but that may not be the case with -R */
 640                         if (fd2 == -1 && relative_paths && errno == ENOENT
 641                             && create_directory_path(fnametmp, orig_umask) == 0) {
 642                                 /* Get back to name with XXXXXX in it. */
 643                                 get_tmpname(fnametmp, fname);
 644                                 fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 645                         }
 646                         if (fd2 == -1) {
 647                                 rsyserr(FERROR, errno, "mkstemp %s failed",
 648                                         full_fname(fnametmp));
 649                                 discard_receive_data(f_in, file->length);
 650                                 if (fd1 != -1)
 651                                         close(fd1);
 652                                 continue;
 653                         }
 654
 655                         if (partialptr)
 656                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
 657                 }
 658
 659                 /* log the transfer */
 660                 if (log_before_transfer)
 661                         log_item(file, &initial_stats, iflags, NULL);
 662                 else if (!am_server && verbose && do_progress)
 663                         rprintf(FINFO, "%s\n", safe_fname(fname));
 664
 665                 /* recv file data */
 666                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
 667                                        fname, fd2, file->length);
 668
 669                 if (!log_before_transfer)
 670                         log_item(file, &initial_stats, iflags, NULL);
 671
 672                 if (fd1 != -1)
 673                         close(fd1);
 674                 if (close(fd2) < 0) {
 675                         rsyserr(FERROR, errno, "close failed on %s",
 676                                 full_fname(fnametmp));
 677                         exit_cleanup(RERR_FILEIO);
 678                 }
 679
 680                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
 681                         finish_transfer(fname, fnametmp, file, recv_ok, 1);
 682                         if (partialptr != fname && fnamecmp == partialptr) {
 683                                 do_unlink(partialptr);
 684                                 handle_partial_dir(partialptr, PDIR_DELETE);
 685                         }
 686                 } else if (keep_partial && partialptr
 687                     && handle_partial_dir(partialptr, PDIR_CREATE)) {
 688                         finish_transfer(partialptr, fnametmp, file, recv_ok,
 689                                         !partial_dir);
 690                         if (delay_updates && recv_ok) {
 691                                 set_delayed_bit(i);
 692                                 recv_ok = -1;
 693                         }
 694                 } else {
 695                         partialptr = NULL;
 696                         do_unlink(fnametmp);
 697                 }
 698
 699                 cleanup_disable();
 700
 701                 if (recv_ok > 0) {
 702                         if (remove_sent_files
 703                             || (preserve_hard_links && file->link_u.links)) {
 704                                 SIVAL(numbuf, 0, i);
 705                                 send_msg(MSG_SUCCESS, numbuf, 4);
 706                         }
 707                 } else if (!recv_ok) {
 708                         int msgtype = phase || read_batch ? FERROR : FINFO;
 709                         if (msgtype == FERROR || verbose) {
 710                                 char *errstr, *redostr, *keptstr;
 711                                 if (!(keep_partial && partialptr) && !inplace)
 712                                         keptstr = "discarded";
 713                                 else if (partial_dir)
 714                                         keptstr = "put into partial-dir";
 715                                 else
 716                                         keptstr = "retained";
 717                                 if (msgtype == FERROR) {
 718                                         errstr = "ERROR";
 719                                         redostr = "";
 720                                 } else {
 721                                         errstr = "WARNING";
 722                                         redostr = " (will try again)";
 723                                 }
 724                                 rprintf(msgtype,
 725                                         "%s: %s failed verification -- update %s%s.\n",
 726                                         errstr, safe_fname(fname),
 727                                         keptstr, redostr);
 728                         }
 729                         if (!phase) {
 730                                 SIVAL(numbuf, 0, i);
 731                                 send_msg(MSG_REDO, numbuf, 4);
 732                         }
 733                 }
 734         }
 735         make_backups = save_make_backups;
 736
 737         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
 738                 handle_delayed_updates(flist, local_name);
 739
 740         if (verbose > 2)
 741                 rprintf(FINFO,"recv_files finished\n");
 742
 743         return 0;
 744 }