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 #define SLOT_SIZE       (16*1024)       /* Desired size in bytes */
  63 #define PER_SLOT_BITS   (SLOT_SIZE * 8) /* Number of bits per slot */
  64 #define PER_SLOT_INTS   (SLOT_SIZE / 4) /* Number of int32s per slot */
  65
  66 static uint32 **delayed_bits = NULL;
  67 static int delayed_slot_cnt = 0;
  68 static int phase = 0;
  69
  70 static void init_delayed_bits(int max_ndx)
  71 {
  72         delayed_slot_cnt = (max_ndx + PER_SLOT_BITS - 1) / PER_SLOT_BITS;
  73
  74         if (!(delayed_bits = (uint32**)calloc(delayed_slot_cnt, sizeof (uint32*))))
  75                 out_of_memory("set_delayed_bit");
  76 }
  77
  78 static void set_delayed_bit(int ndx)
  79 {
  80         int slot = ndx / PER_SLOT_BITS;
  81         ndx %= PER_SLOT_BITS;
  82
  83         if (!delayed_bits[slot]) {
  84                 if (!(delayed_bits[slot] = (uint32*)calloc(PER_SLOT_INTS, 4)))
  85                         out_of_memory("set_delayed_bit");
  86         }
  87
  88         delayed_bits[slot][ndx/32] |= 1u << (ndx % 32);
  89 }
  90
  91 /* Call this with -1 to start checking from 0.  Returns -1 at the end. */
  92 static int next_delayed_bit(int after)
  93 {
  94         uint32 bits, mask;
  95         int i, ndx = after + 1;
  96         int slot = ndx / PER_SLOT_BITS;
  97         ndx %= PER_SLOT_BITS;
  98
  99         mask = (1u << (ndx % 32)) - 1;
 100         for (i = ndx / 32; slot < delayed_slot_cnt; slot++, i = mask = 0) {
 101                 if (!delayed_bits[slot])
 102                         continue;
 103                 for ( ; i < PER_SLOT_INTS; i++, mask = 0) {
 104                         if (!(bits = delayed_bits[slot][i] & ~mask))
 105                                 continue;
 106                         /* The xor magic figures out the lowest enabled bit in
 107                          * bits, and the switch quickly computes log2(bit). */
 108                         switch (bits ^ (bits & (bits-1))) {
 109 #define LOG2(n) case 1u << n: return slot*PER_SLOT_BITS + i*32 + n
 110                             LOG2(0);  LOG2(1);  LOG2(2);  LOG2(3);
 111                             LOG2(4);  LOG2(5);  LOG2(6);  LOG2(7);
 112                             LOG2(8);  LOG2(9);  LOG2(10); LOG2(11);
 113                             LOG2(12); LOG2(13); LOG2(14); LOG2(15);
 114                             LOG2(16); LOG2(17); LOG2(18); LOG2(19);
 115                             LOG2(20); LOG2(21); LOG2(22); LOG2(23);
 116                             LOG2(24); LOG2(25); LOG2(26); LOG2(27);
 117                             LOG2(28); LOG2(29); LOG2(30); LOG2(31);
 118                         }
 119                         return -1; /* impossible... */
 120                 }
 121         }
 122
 123         return -1;
 124 }
 125
 126
 127 /*
 128  * get_tmpname() - create a tmp filename for a given filename
 129  *
 130  *   If a tmpdir is defined, use that as the directory to
 131  *   put it in.  Otherwise, the tmp filename is in the same
 132  *   directory as the given name.  Note that there may be no
 133  *   directory at all in the given name!
 134  *
 135  *   The tmp filename is basically the given filename with a
 136  *   dot prepended, and .XXXXXX appended (for mkstemp() to
 137  *   put its unique gunk in).  Take care to not exceed
 138  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
 139  *   the basename basically becomes 8 chars longer. In that
 140  *   case, the original name is shortened sufficiently to
 141  *   make it all fit.
 142  *
 143  *   Of course, there's no real reason for the tmp name to
 144  *   look like the original, except to satisfy us humans.
 145  *   As long as it's unique, rsync will work.
 146  */
 147
 148 static int get_tmpname(char *fnametmp, char *fname)
 149 {
 150         char *f;
 151         int     length = 0;
 152         int     maxname;
 153
 154         if (tmpdir) {
 155                 /* Note: this can't overflow, so the return value is safe */
 156                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
 157                 fnametmp[length++] = '/';
 158                 fnametmp[length] = '\0';        /* always NULL terminated */
 159         }
 160
 161         if ((f = strrchr(fname, '/')) != NULL) {
 162                 ++f;
 163                 if (!tmpdir) {
 164                         length = f - fname;
 165                         /* copy up to and including the slash */
 166                         strlcpy(fnametmp, fname, length + 1);
 167                 }
 168         } else
 169                 f = fname;
 170         fnametmp[length++] = '.';
 171         fnametmp[length] = '\0';                /* always NULL terminated */
 172
 173         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 174
 175         if (maxname < 1) {
 176                 rprintf(FERROR, "temporary filename too long: %s\n", 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                                 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                                         partialptr, fname);
 354                         }
 355                         /* We don't use robust_rename() here because the
 356                          * partial-dir must be on the same drive. */
 357                         if (do_rename(partialptr, fname) < 0) {
 358                                 rsyserr(FERROR, errno,
 359                                         "rename failed for %s (from %s)",
 360                                         full_fname(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, PDIR_DELETE);
 369                         }
 370                 }
 371         }
 372 }
 373
 374 static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
 375 {
 376         while (next_gen_i < desired_i) {
 377                 if (next_gen_i >= 0) {
 378                         rprintf(FINFO,
 379                                 "(No batched update for%s \"%s\")\n",
 380                                 phase ? " resend of" : "",
 381                                 f_name(the_file_list->files[next_gen_i]));
 382                 }
 383                 next_gen_i = read_int(batch_gen_fd);
 384                 if (next_gen_i == -1)
 385                         next_gen_i = the_file_list->count;
 386         }
 387         return next_gen_i;
 388 }
 389
 390
 391 /**
 392  * main routine for receiver process.
 393  *
 394  * Receiver process runs on the same host as the generator process. */
 395 int recv_files(int f_in, struct file_list *flist, char *local_name)
 396 {
 397         int next_gen_i = -1;
 398         int fd1,fd2;
 399         STRUCT_STAT st;
 400         int iflags, xlen;
 401         char *fname, fbuf[MAXPATHLEN];
 402         char xname[MAXPATHLEN];
 403         char fnametmp[MAXPATHLEN];
 404         char *fnamecmp, *partialptr, numbuf[4];
 405         char fnamecmpbuf[MAXPATHLEN];
 406         uchar fnamecmp_type;
 407         struct file_struct *file;
 408         struct stats initial_stats;
 409         int save_make_backups = make_backups;
 410         int itemizing = am_daemon ? daemon_log_format_has_i
 411                       : !am_server && log_format_has_i;
 412         int max_phase = protocol_version >= 29 ? 2 : 1;
 413         int i, recv_ok;
 414
 415         if (verbose > 2)
 416                 rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
 417
 418         if (flist->hlink_pool) {
 419                 pool_destroy(flist->hlink_pool);
 420                 flist->hlink_pool = NULL;
 421         }
 422
 423         if (delay_updates)
 424                 init_delayed_bits(flist->count);
 425
 426         while (1) {
 427                 cleanup_disable();
 428
 429                 i = read_int(f_in);
 430                 if (i == -1) {
 431                         if (read_batch) {
 432                                 get_next_gen_i(batch_gen_fd, next_gen_i,
 433                                                flist->count);
 434                                 next_gen_i = -1;
 435                         }
 436                         if (++phase > max_phase)
 437                                 break;
 438                         csum_length = SUM_LENGTH;
 439                         if (verbose > 2)
 440                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
 441                         if (phase == 2 && delay_updates)
 442                                 handle_delayed_updates(flist, local_name);
 443                         send_msg(MSG_DONE, "", 0);
 444                         if (keep_partial && !partial_dir)
 445                                 make_backups = 0; /* prevents double backup */
 446                         if (append_mode) {
 447                                 append_mode = 0;
 448                                 sparse_files = 0;
 449                         }
 450                         continue;
 451                 }
 452
 453                 iflags = read_item_attrs(f_in, -1, i, &fnamecmp_type,
 454                                          xname, &xlen);
 455                 if (iflags == ITEM_IS_NEW) /* no-op packet */
 456                         continue;
 457
 458                 file = flist->files[i];
 459                 fname = local_name ? local_name : f_name_to(file, fbuf);
 460
 461                 if (verbose > 2)
 462                         rprintf(FINFO, "recv_files(%s)\n", fname);
 463
 464                 if (!(iflags & ITEM_TRANSFER)) {
 465                         maybe_log_item(file, iflags, itemizing, xname);
 466                         continue;
 467                 }
 468                 if (phase == 2) {
 469                         rprintf(FERROR,
 470                                 "got transfer request in phase 2 [%s]\n",
 471                                 who_am_i());
 472                         exit_cleanup(RERR_PROTOCOL);
 473                 }
 474
 475                 stats.current_file_index = i;
 476                 stats.num_transferred_files++;
 477                 stats.total_transferred_size += file->length;
 478                 cleanup_got_literal = 0;
 479
 480                 if (server_filter_list.head
 481                     && check_filter(&server_filter_list, fname, 0) < 0) {
 482                         rprintf(FERROR, "attempt to hack rsync failed.\n");
 483                         exit_cleanup(RERR_PROTOCOL);
 484                 }
 485
 486                 if (!do_xfers) { /* log the transfer */
 487                         if (!am_server && log_format)
 488                                 log_item(file, &stats, iflags, NULL);
 489                         if (read_batch)
 490                                 discard_receive_data(f_in, file->length);
 491                         continue;
 492                 }
 493                 if (write_batch < 0) {
 494                         log_item(file, &stats, iflags, NULL);
 495                         if (!am_server)
 496                                 discard_receive_data(f_in, file->length);
 497                         continue;
 498                 }
 499
 500                 if (read_batch) {
 501                         next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
 502                         if (i < next_gen_i) {
 503                                 rprintf(FINFO,
 504                                         "(Skipping batched update for \"%s\")\n",
 505                                         fname);
 506                                 discard_receive_data(f_in, file->length);
 507                                 continue;
 508                         }
 509                         next_gen_i = -1;
 510                 }
 511
 512                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 513
 514                 if (protocol_version >= 29) {
 515                         switch (fnamecmp_type) {
 516                         case FNAMECMP_FNAME:
 517                                 fnamecmp = fname;
 518                                 break;
 519                         case FNAMECMP_PARTIAL_DIR:
 520                                 fnamecmp = partialptr;
 521                                 break;
 522                         case FNAMECMP_BACKUP:
 523                                 fnamecmp = get_backup_name(fname);
 524                                 break;
 525                         case FNAMECMP_FUZZY:
 526                                 if (file->dirname) {
 527                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
 528                                                  file->dirname, xname);
 529                                         fnamecmp = fnamecmpbuf;
 530                                 } else
 531                                         fnamecmp = xname;
 532                                 break;
 533                         default:
 534                                 if (fnamecmp_type >= basis_dir_cnt) {
 535                                         rprintf(FERROR,
 536                                                 "invalid basis_dir index: %d.\n",
 537                                                 fnamecmp_type);
 538                                         exit_cleanup(RERR_PROTOCOL);
 539                                 }
 540                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 541                                          basis_dir[fnamecmp_type], fname);
 542                                 fnamecmp = fnamecmpbuf;
 543                                 break;
 544                         }
 545                         if (!fnamecmp || (server_filter_list.head
 546                           && check_filter(&server_filter_list, fname, 0) < 0))
 547                                 fnamecmp = fname;
 548                 } else {
 549                         /* Reminder: --inplace && --partial-dir are never
 550                          * enabled at the same time. */
 551                         if (inplace && make_backups) {
 552                                 if (!(fnamecmp = get_backup_name(fname)))
 553                                         fnamecmp = fname;
 554                         } else if (partial_dir && partialptr)
 555                                 fnamecmp = partialptr;
 556                         else
 557                                 fnamecmp = fname;
 558                 }
 559
 560                 initial_stats = stats;
 561
 562                 /* open the file */
 563                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 564
 565                 if (fd1 == -1 && protocol_version < 29) {
 566                         if (fnamecmp != fname) {
 567                                 fnamecmp = fname;
 568                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 569                         }
 570
 571                         if (fd1 == -1 && basis_dir[0]) {
 572                                 /* pre-29 allowed only one alternate basis */
 573                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 574                                          basis_dir[0], fname);
 575                                 fnamecmp = fnamecmpbuf;
 576                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 577                         }
 578                 }
 579
 580                 if (fd1 != -1 && do_fstat(fd1,&st) != 0) {
 581                         rsyserr(FERROR, errno, "fstat %s failed",
 582                                 full_fname(fnamecmp));
 583                         discard_receive_data(f_in, file->length);
 584                         close(fd1);
 585                         continue;
 586                 }
 587
 588                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
 589                         /* this special handling for directories
 590                          * wouldn't be necessary if robust_rename()
 591                          * and the underlying robust_unlink could cope
 592                          * with directories
 593                          */
 594                         rprintf(FERROR,"recv_files: %s is a directory\n",
 595                                 full_fname(fnamecmp));
 596                         discard_receive_data(f_in, file->length);
 597                         close(fd1);
 598                         continue;
 599                 }
 600
 601                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
 602                         close(fd1);
 603                         fd1 = -1;
 604                 }
 605
 606                 if (fd1 != -1 && !preserve_perms) {
 607                         /* if the file exists already and we aren't preserving
 608                          * permissions then act as though the remote end sent
 609                          * us the file permissions we already have */
 610                         file->mode = st.st_mode;
 611                 }
 612
 613                 /* We now check to see if we are writing file "inplace" */
 614                 if (inplace)  {
 615                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
 616                         if (fd2 == -1) {
 617                                 rsyserr(FERROR, errno, "open %s failed",
 618                                         full_fname(fname));
 619                                 discard_receive_data(f_in, file->length);
 620                                 if (fd1 != -1)
 621                                         close(fd1);
 622                                 continue;
 623                         }
 624                 } else {
 625                         if (!get_tmpname(fnametmp,fname)) {
 626                                 discard_receive_data(f_in, file->length);
 627                                 if (fd1 != -1)
 628                                         close(fd1);
 629                                 continue;
 630                         }
 631
 632                         /* we initially set the perms without the
 633                          * setuid/setgid bits to ensure that there is no race
 634                          * condition. They are then correctly updated after
 635                          * the lchown. Thanks to snabb@epipe.fi for pointing
 636                          * this out.  We also set it initially without group
 637                          * access because of a similar race condition. */
 638                         fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 639
 640                         /* in most cases parent directories will already exist
 641                          * because their information should have been previously
 642                          * transferred, but that may not be the case with -R */
 643                         if (fd2 == -1 && relative_paths && errno == ENOENT
 644                             && create_directory_path(fnametmp, orig_umask) == 0) {
 645                                 /* Get back to name with XXXXXX in it. */
 646                                 get_tmpname(fnametmp, fname);
 647                                 fd2 = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 648                         }
 649                         if (fd2 == -1) {
 650                                 rsyserr(FERROR, errno, "mkstemp %s failed",
 651                                         full_fname(fnametmp));
 652                                 discard_receive_data(f_in, file->length);
 653                                 if (fd1 != -1)
 654                                         close(fd1);
 655                                 continue;
 656                         }
 657
 658                         if (keep_partial)
 659                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
 660                 }
 661
 662                 /* log the transfer */
 663                 if (log_before_transfer)
 664                         log_item(file, &initial_stats, iflags, NULL);
 665                 else if (!am_server && verbose && do_progress)
 666                         rprintf(FINFO, "%s\n", fname);
 667
 668                 /* recv file data */
 669                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
 670                                        fname, fd2, file->length);
 671
 672                 if (!log_before_transfer)
 673                         log_item(file, &initial_stats, iflags, NULL);
 674
 675                 if (fd1 != -1)
 676                         close(fd1);
 677                 if (close(fd2) < 0) {
 678                         rsyserr(FERROR, errno, "close failed on %s",
 679                                 full_fname(fnametmp));
 680                         exit_cleanup(RERR_FILEIO);
 681                 }
 682
 683                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
 684                         finish_transfer(fname, fnametmp, file, recv_ok, 1);
 685                         if (partialptr != fname && fnamecmp == partialptr) {
 686                                 do_unlink(partialptr);
 687                                 handle_partial_dir(partialptr, PDIR_DELETE);
 688                         }
 689                 } else if (keep_partial && partialptr
 690                     && handle_partial_dir(partialptr, PDIR_CREATE)) {
 691                         finish_transfer(partialptr, fnametmp, file, recv_ok,
 692                                         !partial_dir);
 693                         if (delay_updates && recv_ok) {
 694                                 set_delayed_bit(i);
 695                                 recv_ok = -1;
 696                         }
 697                 } else {
 698                         partialptr = NULL;
 699                         do_unlink(fnametmp);
 700                 }
 701
 702                 cleanup_disable();
 703
 704                 if (recv_ok > 0) {
 705                         if (remove_sent_files
 706                             || (preserve_hard_links && file->link_u.links)) {
 707                                 SIVAL(numbuf, 0, i);
 708                                 send_msg(MSG_SUCCESS, numbuf, 4);
 709                         }
 710                 } else if (!recv_ok) {
 711                         int msgtype = phase || read_batch ? FERROR : FINFO;
 712                         if (msgtype == FERROR || verbose) {
 713                                 char *errstr, *redostr, *keptstr;
 714                                 if (!(keep_partial && partialptr) && !inplace)
 715                                         keptstr = "discarded";
 716                                 else if (partial_dir)
 717                                         keptstr = "put into partial-dir";
 718                                 else
 719                                         keptstr = "retained";
 720                                 if (msgtype == FERROR) {
 721                                         errstr = "ERROR";
 722                                         redostr = "";
 723                                 } else {
 724                                         errstr = "WARNING";
 725                                         redostr = " (will try again)";
 726                                 }
 727                                 rprintf(msgtype,
 728                                         "%s: %s failed verification -- update %s%s.\n",
 729                                         errstr, fname, keptstr, redostr);
 730                         }
 731                         if (!phase) {
 732                                 SIVAL(numbuf, 0, i);
 733                                 send_msg(MSG_REDO, numbuf, 4);
 734                         }
 735                 }
 736         }
 737         make_backups = save_make_backups;
 738
 739         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
 740                 handle_delayed_updates(flist, local_name);
 741
 742         if (verbose > 2)
 743                 rprintf(FINFO,"recv_files finished\n");
 744
 745         return 0;
 746 }