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) 2003-2007 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 3 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, visit the http://fsf.org website.
  20  */
  21
  22 #include "rsync.h"
  23
  24 extern int verbose;
  25 extern int dry_run;
  26 extern int do_xfers;
  27 extern int am_server;
  28 extern int do_progress;
  29 extern int inc_recurse;
  30 extern int log_before_transfer;
  31 extern int stdout_format_has_i;
  32 extern int logfile_format_has_i;
  33 extern int csum_length;
  34 extern int read_batch;
  35 extern int write_batch;
  36 extern int batch_gen_fd;
  37 extern int protocol_version;
  38 extern int relative_paths;
  39 extern int preserve_hard_links;
  40 extern int preserve_perms;
  41 extern int preserve_xattrs;
  42 extern int basis_dir_cnt;
  43 extern int make_backups;
  44 extern int cleanup_got_literal;
  45 extern int remove_source_files;
  46 extern int append_mode;
  47 extern int sparse_files;
  48 extern int keep_partial;
  49 extern int checksum_seed;
  50 extern int inplace;
  51 extern int delay_updates;
  52 extern mode_t orig_umask;
  53 extern struct stats stats;
  54 extern char *tmpdir;
  55 extern char *partial_dir;
  56 extern char *basis_dir[];
  57 extern struct file_list *cur_flist, *first_flist, *dir_flist;
  58 extern struct filter_list_struct server_filter_list;
  59
  60 static struct bitbag *delayed_bits = NULL;
  61 static int phase = 0, redoing = 0;
  62 /* We're either updating the basis file or an identical copy: */
  63 static int updating_basis_or_equiv;
  64
  65 /*
  66  * get_tmpname() - create a tmp filename for a given filename
  67  *
  68  *   If a tmpdir is defined, use that as the directory to
  69  *   put it in.  Otherwise, the tmp filename is in the same
  70  *   directory as the given name.  Note that there may be no
  71  *   directory at all in the given name!
  72  *
  73  *   The tmp filename is basically the given filename with a
  74  *   dot prepended, and .XXXXXX appended (for mkstemp() to
  75  *   put its unique gunk in).  Take care to not exceed
  76  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
  77  *   the basename basically becomes 8 chars longer. In that
  78  *   case, the original name is shortened sufficiently to
  79  *   make it all fit.
  80  *
  81  *   Of course, there's no real reason for the tmp name to
  82  *   look like the original, except to satisfy us humans.
  83  *   As long as it's unique, rsync will work.
  84  */
  85
  86 int get_tmpname(char *fnametmp, const char *fname)
  87 {
  88         int maxname, added, length = 0;
  89         const char *f;
  90
  91         if (tmpdir) {
  92                 /* Note: this can't overflow, so the return value is safe */
  93                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
  94                 fnametmp[length++] = '/';
  95         }
  96
  97         if ((f = strrchr(fname, '/')) != NULL) {
  98                 ++f;
  99                 if (!tmpdir) {
 100                         length = f - fname;
 101                         /* copy up to and including the slash */
 102                         strlcpy(fnametmp, fname, length + 1);
 103                 }
 104         } else
 105                 f = fname;
 106         fnametmp[length++] = '.';
 107
 108         /* The maxname value is bufsize, and includes space for the '\0'.
 109          * (Note that NAME_MAX get -8 for the leading '.' above.) */
 110         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
 111
 112         if (maxname < 1) {
 113                 rprintf(FERROR_XFER, "temporary filename too long: %s\n", fname);
 114                 fnametmp[0] = '\0';
 115                 return 0;
 116         }
 117
 118         added = strlcpy(fnametmp + length, f, maxname);
 119         if (added >= maxname)
 120                 added = maxname - 1;
 121         memcpy(fnametmp + length + added, ".XXXXXX", 8);
 122
 123         return 1;
 124 }
 125
 126 /* Opens a temporary file for writing.
 127  * Success: Writes name into fnametmp, returns fd.
 128  * Failure: Clobbers fnametmp, returns -1.
 129  * Calling cleanup_set() is the caller's job. */
 130 int open_tmpfile(char *fnametmp, const char *fname, struct file_struct *file)
 131 {
 132         int fd;
 133
 134         if (!get_tmpname(fnametmp, fname))
 135                 return -1;
 136
 137         /* We initially set the perms without the setuid/setgid bits or group
 138          * access to ensure that there is no race condition.  They will be
 139          * correctly updated after the right owner and group info is set.
 140          * (Thanks to snabb@epipe.fi for pointing this out.) */
 141         fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 142
 143 #if 0
 144         /* In most cases parent directories will already exist because their
 145          * information should have been previously transferred, but that may
 146          * not be the case with -R */
 147         if (fd == -1 && relative_paths && errno == ENOENT
 148             && create_directory_path(fnametmp) == 0) {
 149                 /* Get back to name with XXXXXX in it. */
 150                 get_tmpname(fnametmp, fname);
 151                 fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
 152         }
 153 #endif
 154
 155         if (fd == -1) {
 156                 rsyserr(FERROR_XFER, errno, "mkstemp %s failed",
 157                         full_fname(fnametmp));
 158                 return -1;
 159         }
 160
 161         return fd;
 162 }
 163
 164 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
 165                         const char *fname, int fd, OFF_T total_size)
 166 {
 167         static char file_sum1[MAX_DIGEST_LEN];
 168         static char file_sum2[MAX_DIGEST_LEN];
 169         struct map_struct *mapbuf;
 170         struct sum_struct sum;
 171         int32 len, sum_len;
 172         OFF_T offset = 0;
 173         OFF_T offset2;
 174         char *data;
 175         int32 i;
 176         char *map = NULL;
 177
 178         read_sum_head(f_in, &sum);
 179
 180         if (fd_r >= 0 && size_r > 0) {
 181                 int32 read_size = MAX(sum.blength * 2, 16*1024);
 182                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
 183                 if (verbose > 2) {
 184                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
 185                                 fname_r, (double)size_r);
 186                 }
 187         } else
 188                 mapbuf = NULL;
 189
 190         sum_init(checksum_seed);
 191
 192         if (append_mode > 0) {
 193                 OFF_T j;
 194                 sum.flength = (OFF_T)sum.count * sum.blength;
 195                 if (sum.remainder)
 196                         sum.flength -= sum.blength - sum.remainder;
 197                 if (append_mode == 2) {
 198                         for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
 199                                 if (do_progress)
 200                                         show_progress(offset, total_size);
 201                                 sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
 202                                            CHUNK_SIZE);
 203                                 offset = j;
 204                         }
 205                         if (offset < sum.flength) {
 206                                 int32 len = (int32)(sum.flength - offset);
 207                                 if (do_progress)
 208                                         show_progress(offset, total_size);
 209                                 sum_update(map_ptr(mapbuf, offset, len), len);
 210                         }
 211                 }
 212                 offset = sum.flength;
 213                 if (fd != -1 && (j = do_lseek(fd, offset, SEEK_SET)) != offset) {
 214                         rsyserr(FERROR_XFER, errno, "lseek of %s returned %.0f, not %.0f",
 215                                 full_fname(fname), (double)j, (double)offset);
 216                         exit_cleanup(RERR_FILEIO);
 217                 }
 218         }
 219
 220         while ((i = recv_token(f_in, &data)) != 0) {
 221                 if (do_progress)
 222                         show_progress(offset, total_size);
 223
 224                 if (i > 0) {
 225                         if (verbose > 3) {
 226                                 rprintf(FINFO,"data recv %d at %.0f\n",
 227                                         i,(double)offset);
 228                         }
 229
 230                         stats.literal_data += i;
 231                         cleanup_got_literal = 1;
 232
 233                         sum_update(data, i);
 234
 235                         if (fd != -1 && write_file(fd,data,i) != i)
 236                                 goto report_write_error;
 237                         offset += i;
 238                         continue;
 239                 }
 240
 241                 i = -(i+1);
 242                 offset2 = i * (OFF_T)sum.blength;
 243                 len = sum.blength;
 244                 if (i == (int)sum.count-1 && sum.remainder != 0)
 245                         len = sum.remainder;
 246
 247                 stats.matched_data += len;
 248
 249                 if (verbose > 3) {
 250                         rprintf(FINFO,
 251                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
 252                                 i, (long)len, (double)offset2, (double)offset);
 253                 }
 254
 255                 if (mapbuf) {
 256                         map = map_ptr(mapbuf,offset2,len);
 257
 258                         see_token(map, len);
 259                         sum_update(map, len);
 260                 }
 261
 262                 if (updating_basis_or_equiv) {
 263                         if (offset == offset2 && fd != -1) {
 264                                 OFF_T pos;
 265                                 if (flush_write_file(fd) < 0)
 266                                         goto report_write_error;
 267                                 offset += len;
 268                                 if ((pos = do_lseek(fd, len, SEEK_CUR)) != offset) {
 269                                         rsyserr(FERROR_XFER, errno,
 270                                                 "lseek of %s returned %.0f, not %.0f",
 271                                                 full_fname(fname),
 272                                                 (double)pos, (double)offset);
 273                                         exit_cleanup(RERR_FILEIO);
 274                                 }
 275                                 continue;
 276                         }
 277                 }
 278                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
 279                         goto report_write_error;
 280                 offset += len;
 281         }
 282
 283         if (flush_write_file(fd) < 0)
 284                 goto report_write_error;
 285
 286 #ifdef HAVE_FTRUNCATE
 287         if (inplace && fd != -1)
 288                 ftruncate(fd, offset);
 289 #endif
 290
 291         if (do_progress)
 292                 end_progress(total_size);
 293
 294         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
 295             report_write_error:
 296                 rsyserr(FERROR_XFER, errno, "write failed on %s",
 297                         full_fname(fname));
 298                 exit_cleanup(RERR_FILEIO);
 299         }
 300
 301         sum_len = sum_end(file_sum1);
 302
 303         if (mapbuf)
 304                 unmap_file(mapbuf);
 305
 306         read_buf(f_in, file_sum2, sum_len);
 307         if (verbose > 2)
 308                 rprintf(FINFO,"got file_sum\n");
 309         if (fd != -1 && memcmp(file_sum1, file_sum2, sum_len) != 0)
 310                 return 0;
 311         return 1;
 312 }
 313
 314
 315 static void discard_receive_data(int f_in, OFF_T length)
 316 {
 317         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
 318 }
 319
 320 static void handle_delayed_updates(char *local_name)
 321 {
 322         char *fname, *partialptr;
 323         int ndx;
 324
 325         for (ndx = -1; (ndx = bitbag_next_bit(delayed_bits, ndx)) >= 0; ) {
 326                 struct file_struct *file = cur_flist->files[ndx];
 327                 fname = local_name ? local_name : f_name(file, NULL);
 328                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
 329                         if (make_backups > 0 && !make_backup(fname))
 330                                 continue;
 331                         if (verbose > 2) {
 332                                 rprintf(FINFO, "renaming %s to %s\n",
 333                                         partialptr, fname);
 334                         }
 335                         /* We don't use robust_rename() here because the
 336                          * partial-dir must be on the same drive. */
 337                         if (do_rename(partialptr, fname) < 0) {
 338                                 rsyserr(FERROR_XFER, errno,
 339                                         "rename failed for %s (from %s)",
 340                                         full_fname(fname), partialptr);
 341                         } else {
 342                                 if (remove_source_files
 343                                  || (preserve_hard_links && F_IS_HLINKED(file)))
 344                                         send_msg_int(MSG_SUCCESS, ndx);
 345                                 handle_partial_dir(partialptr, PDIR_DELETE);
 346                         }
 347                 }
 348         }
 349 }
 350
 351 static int get_next_gen_ndx(int fd, int next_gen_ndx, int desired_ndx)
 352 {
 353         while (next_gen_ndx < desired_ndx) {
 354                 if (next_gen_ndx >= 0) {
 355                         rprintf(FINFO,
 356                                 "(No batched update for%s \"%s\")\n",
 357                                 redoing ? " resend of" : "",
 358                                 f_name(cur_flist->files[next_gen_ndx], NULL));
 359                 }
 360                 next_gen_ndx = read_int(fd);
 361                 if (next_gen_ndx == -1) {
 362                         if (inc_recurse)
 363                                 next_gen_ndx = first_flist->prev->used + first_flist->prev->ndx_start;
 364                         else
 365                                 next_gen_ndx = cur_flist->used;
 366                 }
 367         }
 368         return next_gen_ndx;
 369 }
 370
 371 /**
 372  * main routine for receiver process.
 373  *
 374  * Receiver process runs on the same host as the generator process. */
 375 int recv_files(int f_in, char *local_name)
 376 {
 377         int next_gen_ndx = -1;
 378         int fd1,fd2;
 379         STRUCT_STAT st;
 380         int iflags, xlen;
 381         char *fname, fbuf[MAXPATHLEN];
 382         char xname[MAXPATHLEN];
 383         char fnametmp[MAXPATHLEN];
 384         char *fnamecmp, *partialptr;
 385         char fnamecmpbuf[MAXPATHLEN];
 386         uchar fnamecmp_type;
 387         struct file_struct *file;
 388         struct stats initial_stats;
 389         int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
 390         enum logcode log_code = log_before_transfer ? FLOG : FINFO;
 391         int max_phase = protocol_version >= 29 ? 2 : 1;
 392         int dflt_perms = (ACCESSPERMS & ~orig_umask);
 393 #ifdef SUPPORT_ACLS
 394         const char *parent_dirname = "";
 395 #endif
 396         int ndx, recv_ok;
 397
 398         if (verbose > 2)
 399                 rprintf(FINFO, "recv_files(%d) starting\n", cur_flist->used);
 400
 401         if (delay_updates)
 402                 delayed_bits = bitbag_create(cur_flist->used + 1);
 403
 404         while (1) {
 405                 cleanup_disable();
 406
 407                 /* This call also sets cur_flist. */
 408                 ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
 409                                          xname, &xlen);
 410                 if (ndx == NDX_DONE) {
 411                         if (inc_recurse && first_flist) {
 412                                 flist_free(first_flist);
 413                                 if (first_flist)
 414                                         continue;
 415                         }
 416                         if (read_batch && cur_flist) {
 417                                 int high = inc_recurse
 418                                     ? first_flist->prev->used + first_flist->prev->ndx_start
 419                                     : cur_flist->used;
 420                                 get_next_gen_ndx(batch_gen_fd, next_gen_ndx, high);
 421                                 next_gen_ndx = -1;
 422                         }
 423                         if (++phase > max_phase)
 424                                 break;
 425                         if (verbose > 2)
 426                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
 427                         if (phase == 2 && delay_updates)
 428                                 handle_delayed_updates(local_name);
 429                         send_msg(MSG_DONE, "", 0, 0);
 430                         continue;
 431                 }
 432
 433                 if (ndx - cur_flist->ndx_start >= 0)
 434                         file = cur_flist->files[ndx - cur_flist->ndx_start];
 435                 else
 436                         file = dir_flist->files[cur_flist->parent_ndx];
 437                 fname = local_name ? local_name : f_name(file, fbuf);
 438
 439                 if (verbose > 2)
 440                         rprintf(FINFO, "recv_files(%s)\n", fname);
 441
 442 #ifdef SUPPORT_XATTRS
 443                 if (iflags & ITEM_REPORT_XATTR && !dry_run)
 444                         recv_xattr_request(file, f_in);
 445 #endif
 446
 447                 if (!(iflags & ITEM_TRANSFER)) {
 448                         maybe_log_item(file, iflags, itemizing, xname);
 449 #ifdef SUPPORT_XATTRS
 450                         if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
 451                                 set_file_attrs(fname, file, NULL, fname, 0);
 452 #endif
 453                         continue;
 454                 }
 455                 if (phase == 2) {
 456                         rprintf(FERROR,
 457                                 "got transfer request in phase 2 [%s]\n",
 458                                 who_am_i());
 459                         exit_cleanup(RERR_PROTOCOL);
 460                 }
 461
 462                 if (file->flags & FLAG_FILE_SENT) {
 463                         if (csum_length == SHORT_SUM_LENGTH) {
 464                                 if (keep_partial && !partial_dir)
 465                                         make_backups = -make_backups; /* prevents double backup */
 466                                 if (append_mode)
 467                                         sparse_files = -sparse_files;
 468                                 append_mode = -append_mode;
 469                                 csum_length = SUM_LENGTH;
 470                                 redoing = 1;
 471                         }
 472                 } else {
 473                         if (csum_length != SHORT_SUM_LENGTH) {
 474                                 if (keep_partial && !partial_dir)
 475                                         make_backups = -make_backups;
 476                                 if (append_mode)
 477                                         sparse_files = -sparse_files;
 478                                 append_mode = -append_mode;
 479                                 csum_length = SHORT_SUM_LENGTH;
 480                                 redoing = 0;
 481                         }
 482                 }
 483
 484                 if (!am_server && do_progress)
 485                         set_current_file_index(file, ndx);
 486                 stats.num_transferred_files++;
 487                 stats.total_transferred_size += F_LENGTH(file);
 488
 489                 cleanup_got_literal = 0;
 490
 491                 if (server_filter_list.head
 492                     && check_filter(&server_filter_list, fname, 0) < 0) {
 493                         rprintf(FERROR, "attempt to hack rsync failed.\n");
 494                         exit_cleanup(RERR_PROTOCOL);
 495                 }
 496
 497                 if (!do_xfers) { /* log the transfer */
 498                         log_item(FCLIENT, file, &stats, iflags, NULL);
 499                         if (read_batch)
 500                                 discard_receive_data(f_in, F_LENGTH(file));
 501                         continue;
 502                 }
 503                 if (write_batch < 0) {
 504                         log_item(FINFO, file, &stats, iflags, NULL);
 505                         if (!am_server)
 506                                 discard_receive_data(f_in, F_LENGTH(file));
 507                         continue;
 508                 }
 509
 510                 if (read_batch) {
 511                         next_gen_ndx = get_next_gen_ndx(batch_gen_fd, next_gen_ndx, ndx);
 512                         if (ndx < next_gen_ndx) {
 513                                 rprintf(FINFO,
 514                                         "(Skipping batched update for \"%s\")\n",
 515                                         fname);
 516                                 discard_receive_data(f_in, F_LENGTH(file));
 517                                 if (inc_recurse)
 518                                         send_msg_int(MSG_NO_SEND, ndx);
 519                                 continue;
 520                         }
 521                         next_gen_ndx = -1;
 522                 }
 523
 524                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
 525
 526                 if (protocol_version >= 29) {
 527                         switch (fnamecmp_type) {
 528                         case FNAMECMP_FNAME:
 529                                 fnamecmp = fname;
 530                                 break;
 531                         case FNAMECMP_PARTIAL_DIR:
 532                                 fnamecmp = partialptr;
 533                                 break;
 534                         case FNAMECMP_BACKUP:
 535                                 fnamecmp = get_backup_name(fname);
 536                                 break;
 537                         case FNAMECMP_FUZZY:
 538                                 if (file->dirname) {
 539                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
 540                                                  file->dirname, xname);
 541                                         fnamecmp = fnamecmpbuf;
 542                                 } else
 543                                         fnamecmp = xname;
 544                                 break;
 545                         default:
 546                                 if (fnamecmp_type >= basis_dir_cnt) {
 547                                         rprintf(FERROR,
 548                                                 "invalid basis_dir index: %d.\n",
 549                                                 fnamecmp_type);
 550                                         exit_cleanup(RERR_PROTOCOL);
 551                                 }
 552                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 553                                          basis_dir[fnamecmp_type], fname);
 554                                 fnamecmp = fnamecmpbuf;
 555                                 break;
 556                         }
 557                         if (!fnamecmp || (server_filter_list.head
 558                           && check_filter(&server_filter_list, fname, 0) < 0)) {
 559                                 fnamecmp = fname;
 560                                 fnamecmp_type = FNAMECMP_FNAME;
 561                         }
 562                 } else {
 563                         /* Reminder: --inplace && --partial-dir are never
 564                          * enabled at the same time. */
 565                         if (inplace && make_backups > 0) {
 566                                 if (!(fnamecmp = get_backup_name(fname)))
 567                                         fnamecmp = fname;
 568                                 else
 569                                         fnamecmp_type = FNAMECMP_BACKUP;
 570                         } else if (partial_dir && partialptr)
 571                                 fnamecmp = partialptr;
 572                         else
 573                                 fnamecmp = fname;
 574                 }
 575
 576                 initial_stats = stats;
 577
 578                 /* open the file */
 579                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 580
 581                 if (fd1 == -1 && protocol_version < 29) {
 582                         if (fnamecmp != fname) {
 583                                 fnamecmp = fname;
 584                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 585                         }
 586
 587                         if (fd1 == -1 && basis_dir[0]) {
 588                                 /* pre-29 allowed only one alternate basis */
 589                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 590                                          basis_dir[0], fname);
 591                                 fnamecmp = fnamecmpbuf;
 592                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
 593                         }
 594                 }
 595
 596                 updating_basis_or_equiv = inplace
 597                     && (fnamecmp == fname || fnamecmp_type == FNAMECMP_BACKUP);
 598
 599                 if (fd1 == -1) {
 600                         st.st_mode = 0;
 601                         st.st_size = 0;
 602                 } else if (do_fstat(fd1,&st) != 0) {
 603                         rsyserr(FERROR_XFER, errno, "fstat %s failed",
 604                                 full_fname(fnamecmp));
 605                         discard_receive_data(f_in, F_LENGTH(file));
 606                         close(fd1);
 607                         if (inc_recurse)
 608                                 send_msg_int(MSG_NO_SEND, ndx);
 609                         continue;
 610                 }
 611
 612                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
 613                         /* this special handling for directories
 614                          * wouldn't be necessary if robust_rename()
 615                          * and the underlying robust_unlink could cope
 616                          * with directories
 617                          */
 618                         rprintf(FERROR_XFER, "recv_files: %s is a directory\n",
 619                                 full_fname(fnamecmp));
 620                         discard_receive_data(f_in, F_LENGTH(file));
 621                         close(fd1);
 622                         if (inc_recurse)
 623                                 send_msg_int(MSG_NO_SEND, ndx);
 624                         continue;
 625                 }
 626
 627                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
 628                         close(fd1);
 629                         fd1 = -1;
 630                 }
 631
 632                 /* If we're not preserving permissions, change the file-list's
 633                  * mode based on the local permissions and some heuristics. */
 634                 if (!preserve_perms) {
 635                         int exists = fd1 != -1;
 636 #ifdef SUPPORT_ACLS
 637                         const char *dn = file->dirname ? file->dirname : ".";
 638                         if (parent_dirname != dn
 639                          && strcmp(parent_dirname, dn) != 0) {
 640                                 dflt_perms = default_perms_for_dir(dn);
 641                                 parent_dirname = dn;
 642                         }
 643 #endif
 644                         file->mode = dest_mode(file->mode, st.st_mode,
 645                                                dflt_perms, exists);
 646                 }
 647
 648                 /* We now check to see if we are writing the file "inplace" */
 649                 if (inplace)  {
 650                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
 651                         if (fd2 == -1) {
 652                                 rsyserr(FERROR_XFER, errno, "open %s failed",
 653                                         full_fname(fname));
 654                         }
 655                 } else {
 656                         fd2 = open_tmpfile(fnametmp, fname, file);
 657                         if (fd2 != -1)
 658                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
 659                 }
 660
 661                 if (fd2 == -1) {
 662                         discard_receive_data(f_in, F_LENGTH(file));
 663                         if (fd1 != -1)
 664                                 close(fd1);
 665                         if (inc_recurse)
 666                                 send_msg_int(MSG_NO_SEND, ndx);
 667                         continue;
 668                 }
 669
 670                 /* log the transfer */
 671                 if (log_before_transfer)
 672                         log_item(FCLIENT, file, &initial_stats, iflags, NULL);
 673                 else if (!am_server && verbose && do_progress)
 674                         rprintf(FINFO, "%s\n", fname);
 675
 676                 /* recv file data */
 677                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
 678                                        fname, fd2, F_LENGTH(file));
 679
 680                 log_item(log_code, file, &initial_stats, iflags, NULL);
 681
 682                 if (fd1 != -1)
 683                         close(fd1);
 684                 if (close(fd2) < 0) {
 685                         rsyserr(FERROR, errno, "close failed on %s",
 686                                 full_fname(fnametmp));
 687                         exit_cleanup(RERR_FILEIO);
 688                 }
 689
 690                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
 691                         if (partialptr == fname)
 692                                 partialptr = NULL;
 693                         if (!finish_transfer(fname, fnametmp, fnamecmp,
 694                                              partialptr, file, recv_ok, 1))
 695                                 recv_ok = -1;
 696                         else if (fnamecmp == partialptr) {
 697                                 do_unlink(partialptr);
 698                                 handle_partial_dir(partialptr, PDIR_DELETE);
 699                         }
 700                 } else if (keep_partial && partialptr
 701                     && handle_partial_dir(partialptr, PDIR_CREATE)) {
 702                         if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
 703                                              file, recv_ok, !partial_dir))
 704                                 recv_ok = -1;
 705                         else if (delay_updates && recv_ok) {
 706                                 bitbag_set_bit(delayed_bits, ndx);
 707                                 recv_ok = 2;
 708                         }
 709                 } else {
 710                         partialptr = NULL;
 711                         do_unlink(fnametmp);
 712                 }
 713
 714                 cleanup_disable();
 715
 716                 switch (recv_ok) {
 717                 case 1:
 718                         if (remove_source_files || inc_recurse
 719                          || (preserve_hard_links && F_IS_HLINKED(file)))
 720                                 send_msg_int(MSG_SUCCESS, ndx);
 721                         break;
 722                 case 0: {
 723                         enum logcode msgtype = redoing || read_batch ? FERROR : FWARNING;
 724                         if (msgtype == FERROR || verbose) {
 725                                 char *errstr, *redostr, *keptstr;
 726                                 if (!(keep_partial && partialptr) && !inplace)
 727                                         keptstr = "discarded";
 728                                 else if (partial_dir)
 729                                         keptstr = "put into partial-dir";
 730                                 else
 731                                         keptstr = "retained";
 732                                 if (msgtype == FERROR) {
 733                                         errstr = "ERROR";
 734                                         redostr = "";
 735                                 } else {
 736                                         errstr = "WARNING";
 737                                         redostr = " (will try again)";
 738                                 }
 739                                 rprintf(msgtype,
 740                                         "%s: %s failed verification -- update %s%s.\n",
 741                                         errstr, fname, keptstr, redostr);
 742                         }
 743                         if (!redoing) {
 744                                 send_msg_int(MSG_REDO, ndx);
 745                                 file->flags |= FLAG_FILE_SENT;
 746                         } else if (inc_recurse)
 747                                 send_msg_int(MSG_NO_SEND, ndx);
 748                         break;
 749                     }
 750                 case -1:
 751                         if (inc_recurse)
 752                                 send_msg_int(MSG_NO_SEND, ndx);
 753                         break;
 754                 }
 755         }
 756         if (make_backups < 0)
 757                 make_backups = -make_backups;
 758
 759         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
 760                 handle_delayed_updates(local_name);
 761
 762         if (verbose > 2)
 763                 rprintf(FINFO,"recv_files finished\n");
 764
 765         return 0;
 766 }