generator.c

   1 /* -*- c-file-style: "linux" -*-
   2
   3    rsync -- fast file replication program
   4
   5    Copyright (C) 1996-2000 by Andrew Tridgell
   6    Copyright (C) Paul Mackerras 1996
   7    Copyright (C) 2002 by Martin Pool <mbp@samba.org>
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "rsync.h"
  25
  26 extern int verbose;
  27 extern int dry_run;
  28 extern int log_format_has_i;
  29 extern int log_format_has_o_or_i;
  30 extern int daemon_log_format_has_i;
  31 extern int am_root;
  32 extern int am_server;
  33 extern int am_daemon;
  34 extern int do_progress;
  35 extern int recurse;
  36 extern int relative_paths;
  37 extern int keep_dirlinks;
  38 extern int preserve_links;
  39 extern int preserve_devices;
  40 extern int preserve_hard_links;
  41 extern int preserve_perms;
  42 extern int preserve_uid;
  43 extern int preserve_gid;
  44 extern int preserve_times;
  45 extern int omit_dir_times;
  46 extern int delete_before;
  47 extern int delete_during;
  48 extern int delete_after;
  49 extern int module_id;
  50 extern int ignore_errors;
  51 extern int remove_sent_files;
  52 extern int delay_updates;
  53 extern int update_only;
  54 extern int opt_ignore_existing;
  55 extern int inplace;
  56 extern int make_backups;
  57 extern int csum_length;
  58 extern int ignore_times;
  59 extern int size_only;
  60 extern OFF_T max_size;
  61 extern int io_timeout;
  62 extern int io_error;
  63 extern int sock_f_out;
  64 extern int ignore_timeout;
  65 extern int protocol_version;
  66 extern int fuzzy_basis;
  67 extern int always_checksum;
  68 extern char *partial_dir;
  69 extern char *basis_dir[];
  70 extern int compare_dest;
  71 extern int copy_dest;
  72 extern int link_dest;
  73 extern int whole_file;
  74 extern int list_only;
  75 extern int read_batch;
  76 extern int only_existing;
  77 extern int orig_umask;
  78 extern int safe_symlinks;
  79 extern long block_size; /* "long" because popt can't set an int32. */
  80 extern int max_delete;
  81 extern int force_delete;
  82 extern int one_file_system;
  83 extern struct stats stats;
  84 extern dev_t filesystem_dev;
  85 extern char *backup_dir;
  86 extern char *backup_suffix;
  87 extern int backup_suffix_len;
  88 extern struct file_list *the_file_list;
  89 extern struct filter_list_struct server_filter_list;
  90
  91 int allowed_lull = 0;
  92
  93 static int deletion_count = 0; /* used to implement --max-delete */
  94
  95
  96 static int is_backup_file(char *fn)
  97 {
  98         int k = strlen(fn) - backup_suffix_len;
  99         return k > 0 && strcmp(fn+k, backup_suffix) == 0;
 100 }
 101
 102
 103 /* Delete a file or directory.  If DEL_FORCE_RECURSE is set in the flags, or if
 104  * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE
 105  * is not set in the flags. */
 106 static int delete_item(char *fname, int mode, int flags)
 107 {
 108         struct file_list *dirlist;
 109         char buf[MAXPATHLEN];
 110         int j, dlen, zap_dir, ok;
 111         void *save_filters;
 112
 113         if (!S_ISDIR(mode)) {
 114                 if (max_delete && ++deletion_count > max_delete)
 115                         return 0;
 116                 if (make_backups && (backup_dir || !is_backup_file(fname)))
 117                         ok = make_backup(fname);
 118                 else
 119                         ok = robust_unlink(fname) == 0;
 120                 if (ok) {
 121                         if (!(flags & DEL_TERSE))
 122                                 log_delete(fname, mode);
 123                         return 0;
 124                 }
 125                 if (errno == ENOENT) {
 126                         deletion_count--;
 127                         return 0;
 128                 }
 129                 rsyserr(FERROR, errno, "delete_file: unlink %s failed",
 130                         full_fname(fname));
 131                 return -1;
 132         }
 133
 134         zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse))
 135                 && !(flags & DEL_NO_RECURSE);
 136         if ((max_delete && ++deletion_count > max_delete)
 137             || (dry_run && zap_dir)) {
 138                 ok = 0;
 139                 errno = ENOTEMPTY;
 140         } else if (make_backups && !backup_dir && !is_backup_file(fname)
 141             && !(flags & DEL_FORCE_RECURSE))
 142                 ok = make_backup(fname);
 143         else
 144                 ok = do_rmdir(fname) == 0;
 145         if (ok) {
 146                 if (!(flags & DEL_TERSE))
 147                         log_delete(fname, mode);
 148                 return 0;
 149         }
 150         if (errno == ENOENT) {
 151                 deletion_count--;
 152                 return 0;
 153         }
 154         if (!zap_dir || (errno != ENOTEMPTY && errno != EEXIST)) {
 155                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 156                         full_fname(fname));
 157                 return -1;
 158         }
 159         flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */
 160         deletion_count--;
 161
 162         dlen = strlcpy(buf, fname, MAXPATHLEN);
 163         save_filters = push_local_filters(buf, dlen);
 164
 165         dirlist = get_dirlist(buf, dlen, 0);
 166         for (j = dirlist->count; j--; ) {
 167                 struct file_struct *fp = dirlist->files[j];
 168
 169                 if (fp->flags & FLAG_MOUNT_POINT)
 170                         continue;
 171
 172                 f_name_to(fp, buf);
 173                 if (delete_item(buf, fp->mode, flags & ~DEL_TERSE) != 0) {
 174                         flist_free(dirlist);
 175                         return -1;
 176                 }
 177         }
 178         flist_free(dirlist);
 179
 180         pop_local_filters(save_filters);
 181
 182         if (max_delete && ++deletion_count > max_delete)
 183                 return 0;
 184
 185         if (do_rmdir(fname) == 0) {
 186                 if (!(flags & DEL_TERSE))
 187                         log_delete(fname, mode);
 188         } else if (errno != ENOTEMPTY && errno != ENOENT) {
 189                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 190                         full_fname(fname));
 191                 return -1;
 192         }
 193
 194         return 0;
 195 }
 196
 197
 198 /* This function is used to implement per-directory deletion, and is used by
 199  * all the --delete-WHEN options.  Note that the fbuf pointer must point to a
 200  * MAXPATHLEN buffer with the name of the directory in it (the functions we
 201  * call will append names onto the end, but the old dir value will be restored
 202  * on exit). */
 203 static void delete_in_dir(struct file_list *flist, char *fbuf,
 204                           struct file_struct *file)
 205 {
 206         static int min_depth = MAXPATHLEN, cur_depth = -1;
 207         static void *filt_array[MAXPATHLEN/2+1];
 208         static int already_warned = 0;
 209         struct file_list *dirlist;
 210         char delbuf[MAXPATHLEN];
 211         STRUCT_STAT st;
 212         int dlen, i;
 213
 214         if (!flist) {
 215                 while (cur_depth >= min_depth)
 216                         pop_local_filters(filt_array[cur_depth--]);
 217                 min_depth = MAXPATHLEN;
 218                 cur_depth = -1;
 219                 return;
 220         }
 221
 222         if (verbose > 2)
 223                 rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf));
 224
 225         if (allowed_lull)
 226                 maybe_send_keepalive();
 227
 228         if (file->dir.depth >= MAXPATHLEN/2+1)
 229                 return; /* Impossible... */
 230
 231         if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) {
 232                 if (already_warned)
 233                         return;
 234                 rprintf(FINFO,
 235                         "IO error encountered -- skipping file deletion\n");
 236                 already_warned = 1;
 237                 return;
 238         }
 239
 240         while (cur_depth >= file->dir.depth && cur_depth >= min_depth)
 241                 pop_local_filters(filt_array[cur_depth--]);
 242         cur_depth = file->dir.depth;
 243         if (min_depth > cur_depth)
 244                 min_depth = cur_depth;
 245         dlen = strlen(fbuf);
 246         filt_array[cur_depth] = push_local_filters(fbuf, dlen);
 247
 248         if (link_stat(fbuf, &st, keep_dirlinks) < 0)
 249                 return;
 250
 251         if (one_file_system && file->flags & FLAG_TOP_DIR)
 252                 filesystem_dev = st.st_dev;
 253
 254         dirlist = get_dirlist(fbuf, dlen, 0);
 255
 256         /* If an item in dirlist is not found in flist, delete it
 257          * from the filesystem. */
 258         for (i = dirlist->count; i--; ) {
 259                 if (!dirlist->files[i]->basename)
 260                         continue;
 261                 if (flist_find(flist, dirlist->files[i]) < 0) {
 262                         int mode = dirlist->files[i]->mode;
 263                         f_name_to(dirlist->files[i], delbuf);
 264                         if (delete_item(delbuf, mode, DEL_FORCE_RECURSE) < 0)
 265                                 break;
 266                 }
 267         }
 268
 269         flist_free(dirlist);
 270 }
 271
 272 /* This deletes any files on the receiving side that are not present on the
 273  * sending side.  This is used by --delete-before and --delete-after. */
 274 static void do_delete_pass(struct file_list *flist)
 275 {
 276         char fbuf[MAXPATHLEN];
 277         int j;
 278
 279         if (dry_run > 1) /* destination doesn't exist yet */
 280                 return;
 281
 282         for (j = 0; j < flist->count; j++) {
 283                 struct file_struct *file = flist->files[j];
 284
 285                 if (!(file->flags & FLAG_DEL_HERE))
 286                         continue;
 287
 288                 f_name_to(file, fbuf);
 289                 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
 290                         rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf));
 291
 292                 delete_in_dir(flist, fbuf, file);
 293         }
 294 }
 295
 296 static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
 297 {
 298         if (preserve_perms
 299          && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
 300                 return 0;
 301
 302         if (am_root && preserve_uid && st->st_uid != file->uid)
 303                 return 0;
 304
 305         if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
 306                 return 0;
 307
 308         return 1;
 309 }
 310
 311
 312 void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st,
 313              int32 iflags, uchar fnamecmp_type, char *xname)
 314 {
 315         if (statret == 0) {
 316                 if (S_ISREG(file->mode) && file->length != st->st_size)
 317                         iflags |= ITEM_REPORT_SIZE;
 318                 if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) {
 319                         int keep_time = !preserve_times ? 0
 320                             : S_ISDIR(file->mode) ? !omit_dir_times
 321                             : !S_ISLNK(file->mode);
 322
 323                         if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time)
 324                             || (keep_time && file->modtime != st->st_mtime))
 325                                 iflags |= ITEM_REPORT_TIME;
 326                         if (preserve_perms && file->mode != st->st_mode)
 327                                 iflags |= ITEM_REPORT_PERMS;
 328                         if (preserve_uid && am_root && file->uid != st->st_uid)
 329                                 iflags |= ITEM_REPORT_OWNER;
 330                         if (preserve_gid && file->gid != GID_NONE
 331                             && st->st_gid != file->gid)
 332                                 iflags |= ITEM_REPORT_GROUP;
 333                 }
 334         } else
 335                 iflags |= ITEM_IS_NEW;
 336
 337         iflags &= 0xffff;
 338         if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1
 339           || (xname && *xname)) && !read_batch) {
 340                 if (protocol_version >= 29) {
 341                         if (ndx >= 0)
 342                                 write_int(sock_f_out, ndx);
 343                         write_shortint(sock_f_out, iflags);
 344                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 345                                 write_byte(sock_f_out, fnamecmp_type);
 346                         if (iflags & ITEM_XNAME_FOLLOWS)
 347                                 write_vstring(sock_f_out, xname, strlen(xname));
 348                 } else if (ndx >= 0)
 349                         log_item(file, &stats, iflags, xname);
 350         }
 351 }
 352
 353
 354 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 355 static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 356 {
 357         if (st->st_size != file->length)
 358                 return 0;
 359
 360         /* if always checksum is set then we use the checksum instead
 361            of the file time to determine whether to sync */
 362         if (always_checksum && S_ISREG(st->st_mode)) {
 363                 char sum[MD4_SUM_LENGTH];
 364                 file_checksum(fn, sum, st->st_size);
 365                 return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
 366                                                         : MD4_SUM_LENGTH) == 0;
 367         }
 368
 369         if (size_only)
 370                 return 1;
 371
 372         if (ignore_times)
 373                 return 0;
 374
 375         return cmp_modtime(st->st_mtime, file->modtime) == 0;
 376 }
 377
 378
 379 /*
 380  * set (initialize) the size entries in the per-file sum_struct
 381  * calculating dynamic block and checksum sizes.
 382  *
 383  * This is only called from generate_and_send_sums() but is a separate
 384  * function to encapsulate the logic.
 385  *
 386  * The block size is a rounded square root of file length.
 387  *
 388  * The checksum size is determined according to:
 389  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 390  * provided by Donovan Baarda which gives a probability of rsync
 391  * algorithm corrupting data and falling back using the whole md4
 392  * checksums.
 393  *
 394  * This might be made one of several selectable heuristics.
 395  */
 396 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 397 {
 398         int32 blength;
 399         int s2length;
 400
 401         if (block_size)
 402                 blength = block_size;
 403         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 404                 blength = BLOCK_SIZE;
 405         else {
 406                 int32 c;
 407                 int64 l;
 408                 int cnt;
 409                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 410                 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
 411                         blength = MAX_BLOCK_SIZE;
 412                 else {
 413                     blength = 0;
 414                     do {
 415                             blength |= c;
 416                             if (len < (int64)blength * blength)
 417                                     blength &= ~c;
 418                             c >>= 1;
 419                     } while (c >= 8);   /* round to multiple of 8 */
 420                     blength = MAX(blength, BLOCK_SIZE);
 421                 }
 422         }
 423
 424         if (protocol_version < 27) {
 425                 s2length = csum_length;
 426         } else if (csum_length == SUM_LENGTH) {
 427                 s2length = SUM_LENGTH;
 428         } else {
 429                 int32 c;
 430                 int64 l;
 431                 int b = BLOCKSUM_BIAS;
 432                 for (l = len; l >>= 1; b += 2) {}
 433                 for (c = blength; c >>= 1 && b; b--) {}
 434                 /* add a bit, subtract rollsum, round up. */
 435                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 436                 s2length = MAX(s2length, csum_length);
 437                 s2length = MIN(s2length, SUM_LENGTH);
 438         }
 439
 440         sum->flength    = len;
 441         sum->blength    = blength;
 442         sum->s2length   = s2length;
 443         sum->count      = (len + (blength - 1)) / blength;
 444         sum->remainder  = (len % blength);
 445
 446         if (sum->count && verbose > 2) {
 447                 rprintf(FINFO,
 448                         "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
 449                         (double)sum->count, (long)sum->remainder, (long)sum->blength,
 450                         sum->s2length, (double)sum->flength);
 451         }
 452 }
 453
 454
 455 /*
 456  * Generate and send a stream of signatures/checksums that describe a buffer
 457  *
 458  * Generate approximately one checksum every block_len bytes.
 459  */
 460 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 461 {
 462         int32 i;
 463         struct map_struct *mapbuf;
 464         struct sum_struct sum;
 465         OFF_T offset = 0;
 466
 467         sum_sizes_sqroot(&sum, len);
 468
 469         if (len > 0)
 470                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 471         else
 472                 mapbuf = NULL;
 473
 474         write_sum_head(f_out, &sum);
 475
 476         for (i = 0; i < sum.count; i++) {
 477                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 478                 char *map = map_ptr(mapbuf, offset, n1);
 479                 uint32 sum1 = get_checksum1(map, n1);
 480                 char sum2[SUM_LENGTH];
 481
 482                 if (f_copy >= 0)
 483                         full_write(f_copy, map, n1);
 484
 485                 get_checksum2(map, n1, sum2);
 486
 487                 if (verbose > 3) {
 488                         rprintf(FINFO,
 489                                 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
 490                                 (double)i, (double)offset, (long)n1,
 491                                 (unsigned long)sum1);
 492                 }
 493                 write_int(f_out, sum1);
 494                 write_buf(f_out, sum2, sum.s2length);
 495                 len -= n1;
 496                 offset += n1;
 497         }
 498
 499         if (mapbuf)
 500                 unmap_file(mapbuf);
 501 }
 502
 503
 504 /* Try to find a filename in the same dir as "fname" with a similar name. */
 505 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
 506 {
 507         int fname_len, fname_suf_len;
 508         const char *fname_suf, *fname = file->basename;
 509         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 510         int j, lowest_j = -1;
 511
 512         fname_len = strlen(fname);
 513         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 514
 515         for (j = 0; j < dirlist->count; j++) {
 516                 struct file_struct *fp = dirlist->files[j];
 517                 const char *suf, *name;
 518                 int len, suf_len;
 519                 uint32 dist;
 520
 521                 if (!S_ISREG(fp->mode) || !fp->length
 522                     || fp->flags & FLAG_NO_FUZZY)
 523                         continue;
 524
 525                 name = fp->basename;
 526
 527                 if (fp->length == file->length
 528                     && fp->modtime == file->modtime) {
 529                         if (verbose > 4) {
 530                                 rprintf(FINFO,
 531                                         "fuzzy size/modtime match for %s\n",
 532                                         name);
 533                         }
 534                         return j;
 535                 }
 536
 537                 len = strlen(name);
 538                 suf = find_filename_suffix(name, len, &suf_len);
 539
 540                 dist = fuzzy_distance(name, len, fname, fname_len);
 541                 /* Add some extra weight to how well the suffixes match. */
 542                 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
 543                       * 10;
 544                 if (verbose > 4) {
 545                         rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 546                                 name, (int)(dist>>16), (int)(dist&0xFFFF));
 547                 }
 548                 if (dist <= lowest_dist) {
 549                         lowest_dist = dist;
 550                         lowest_j = j;
 551                 }
 552         }
 553
 554         return lowest_j;
 555 }
 556
 557 void check_for_finished_hlinks(int itemizing, enum logcode code)
 558 {
 559         struct file_struct *file;
 560         int ndx;
 561
 562         while ((ndx = get_hlink_num()) != -1) {
 563                 if (ndx < 0 || ndx >= the_file_list->count)
 564                         continue;
 565
 566                 file = the_file_list->files[ndx];
 567                 if (!file->link_u.links)
 568                         continue;
 569
 570                 hard_link_cluster(file, ndx, itemizing, code);
 571         }
 572 }
 573
 574 static int phase = 0;
 575
 576 /* Acts on the_file_list->file's ndx'th item, whose name is fname.  If a dir,
 577  * make sure it exists, and has the right permissions/timestamp info.  For
 578  * all other non-regular files (symlinks, etc.) we create them here.  For
 579  * regular files that have changed, we try to find a basis file and then
 580  * start sending checksums.
 581  *
 582  * Note that f_out is set to -1 when doing final directory-permission and
 583  * modification-time repair. */
 584 static void recv_generator(char *fname, struct file_struct *file, int ndx,
 585                            int itemizing, int maybe_PERMS_REPORT,
 586                            enum logcode code, int f_out)
 587 {
 588         static int missing_below = -1, excluded_below = -1;
 589         static char *fuzzy_dirname = "";
 590         static struct file_list *fuzzy_dirlist = NULL;
 591         struct file_struct *fuzzy_file = NULL;
 592         int fd = -1, f_copy = -1;
 593         STRUCT_STAT st, real_st, partial_st;
 594         struct file_struct *back_file = NULL;
 595         int statret, real_ret, stat_errno;
 596         char *fnamecmp, *partialptr, *backupptr = NULL;
 597         char fnamecmpbuf[MAXPATHLEN];
 598         uchar fnamecmp_type;
 599
 600         if (list_only)
 601                 return;
 602
 603         if (!fname) {
 604                 if (fuzzy_dirlist) {
 605                         flist_free(fuzzy_dirlist);
 606                         fuzzy_dirlist = NULL;
 607                         fuzzy_dirname = "";
 608                 }
 609                 if (missing_below >= 0) {
 610                         dry_run--;
 611                         missing_below = -1;
 612                 }
 613                 return;
 614         }
 615
 616         if (verbose > 2) {
 617                 rprintf(FINFO, "recv_generator(%s,%d)\n",
 618                         safe_fname(fname), ndx);
 619         }
 620
 621         if (server_filter_list.head) {
 622                 if (excluded_below >= 0) {
 623                         if (file->dir.depth > excluded_below)
 624                                 goto skipping;
 625                         excluded_below = -1;
 626                 }
 627                 if (check_filter(&server_filter_list, fname,
 628                                  S_ISDIR(file->mode)) < 0) {
 629                         if (S_ISDIR(file->mode))
 630                                 excluded_below = file->dir.depth;
 631                     skipping:
 632                         if (verbose) {
 633                                 rprintf(FINFO,
 634                                         "skipping server-excluded file \"%s\"\n",
 635                                         safe_fname(fname));
 636                         }
 637                         return;
 638                 }
 639         }
 640
 641         if (missing_below >= 0 && file->dir.depth <= missing_below) {
 642                 dry_run--;
 643                 missing_below = -1;
 644         }
 645         if (dry_run > 1) {
 646                 statret = -1;
 647                 stat_errno = ENOENT;
 648         } else {
 649                 if (fuzzy_basis && S_ISREG(file->mode)) {
 650                         char *dn = file->dirname ? file->dirname : ".";
 651                         if (fuzzy_dirname != dn
 652                             && strcmp(fuzzy_dirname, dn) != 0) {
 653                                 if (fuzzy_dirlist)
 654                                         flist_free(fuzzy_dirlist);
 655                                 fuzzy_dirlist = get_dirlist(dn, -1, 1);
 656                         }
 657                         fuzzy_dirname = dn;
 658                 }
 659
 660                 statret = link_stat(fname, &st,
 661                                     keep_dirlinks && S_ISDIR(file->mode));
 662                 stat_errno = errno;
 663         }
 664
 665         if (only_existing && statret == -1 && stat_errno == ENOENT) {
 666                 /* we only want to update existing files */
 667                 if (verbose > 1) {
 668                         rprintf(FINFO, "not creating new file \"%s\"\n",
 669                                 safe_fname(fname));
 670                 }
 671                 return;
 672         }
 673
 674         if (statret == 0 && !preserve_perms
 675             && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
 676                 /* if the file exists already and we aren't perserving
 677                  * permissions then act as though the remote end sent
 678                  * us the file permissions we already have */
 679                 file->mode = (file->mode & ~CHMOD_BITS)
 680                            | (st.st_mode & CHMOD_BITS);
 681         }
 682
 683         if (S_ISDIR(file->mode)) {
 684                 /* The file to be received is a directory, so we need
 685                  * to prepare appropriately.  If there is already a
 686                  * file of that name and it is *not* a directory, then
 687                  * we need to delete it.  If it doesn't exist, then
 688                  * (perhaps recursively) create it. */
 689                 if (statret == 0 && !S_ISDIR(st.st_mode)) {
 690                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 691                                 return;
 692                         statret = -1;
 693                 }
 694                 if (dry_run && statret != 0 && missing_below < 0) {
 695                         missing_below = file->dir.depth;
 696                         dry_run++;
 697                 }
 698                 if (itemizing && f_out != -1) {
 699                         itemize(file, ndx, statret, &st,
 700                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
 701                 }
 702                 if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
 703                         if (!relative_paths || errno != ENOENT
 704                             || create_directory_path(fname, orig_umask) < 0
 705                             || do_mkdir(fname, file->mode) < 0) {
 706                                 rsyserr(FERROR, errno,
 707                                         "recv_generator: mkdir %s failed",
 708                                         full_fname(fname));
 709                         }
 710                 }
 711                 if (set_perms(fname, file, statret ? NULL : &st, 0)
 712                     && verbose && code && f_out != -1)
 713                         rprintf(code, "%s/\n", safe_fname(fname));
 714                 if (delete_during && f_out != -1 && !phase && dry_run < 2
 715                     && (file->flags & FLAG_DEL_HERE))
 716                         delete_in_dir(the_file_list, fname, file);
 717                 return;
 718         }
 719
 720         if (max_size && file->length > max_size) {
 721                 if (verbose > 1) {
 722                         rprintf(FINFO, "%s is over max-size\n",
 723                                 safe_fname(fname));
 724                 }
 725                 return;
 726         }
 727
 728         if (preserve_links && S_ISLNK(file->mode)) {
 729 #ifdef SUPPORT_LINKS
 730                 if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
 731                         if (verbose) {
 732                                 rprintf(FINFO,
 733                                         "ignoring unsafe symlink %s -> \"%s\"\n",
 734                                         full_fname(fname),
 735                                         safe_fname(file->u.link));
 736                         }
 737                         return;
 738                 }
 739                 if (statret == 0) {
 740                         char lnk[MAXPATHLEN];
 741                         int len;
 742
 743                         if (!S_ISDIR(st.st_mode)
 744                             && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) {
 745                                 lnk[len] = 0;
 746                                 /* A link already pointing to the
 747                                  * right place -- no further action
 748                                  * required. */
 749                                 if (strcmp(lnk, file->u.link) == 0) {
 750                                         if (itemizing) {
 751                                                 itemize(file, ndx, 0, &st, 0,
 752                                                         0, NULL);
 753                                         }
 754                                         set_perms(fname, file, &st,
 755                                                   maybe_PERMS_REPORT);
 756                                         return;
 757                                 }
 758                         }
 759                         /* Not the right symlink (or not a symlink), so
 760                          * delete it. */
 761                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 762                                 return;
 763                         if (!S_ISLNK(st.st_mode))
 764                                 statret = -1;
 765                 }
 766                 if (do_symlink(file->u.link,fname) != 0) {
 767                         rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
 768                                 full_fname(fname), safe_fname(file->u.link));
 769                 } else {
 770                         set_perms(fname,file,NULL,0);
 771                         if (itemizing) {
 772                                 itemize(file, ndx, statret, &st,
 773                                         ITEM_LOCAL_CHANGE, 0, NULL);
 774                         }
 775                         if (code && verbose) {
 776                                 rprintf(code, "%s -> %s\n", safe_fname(fname),
 777                                         safe_fname(file->u.link));
 778                         }
 779                         if (remove_sent_files && !dry_run) {
 780                                 char numbuf[4];
 781                                 SIVAL(numbuf, 0, ndx);
 782                                 send_msg(MSG_SUCCESS, numbuf, 4);
 783                         }
 784                 }
 785 #endif
 786                 return;
 787         }
 788
 789         if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
 790                 if (statret != 0 ||
 791                     st.st_mode != file->mode ||
 792                     st.st_rdev != file->u.rdev) {
 793                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 794                                 return;
 795                         if (!IS_DEVICE(st.st_mode))
 796                                 statret = -1;
 797                         if (verbose > 2) {
 798                                 rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
 799                                         safe_fname(fname),
 800                                         (int)file->mode, (int)file->u.rdev);
 801                         }
 802                         if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
 803                                 rsyserr(FERROR, errno, "mknod %s failed",
 804                                         full_fname(fname));
 805                         } else {
 806                                 set_perms(fname,file,NULL,0);
 807                                 if (itemizing) {
 808                                         itemize(file, ndx, statret, &st,
 809                                                 ITEM_LOCAL_CHANGE, 0, NULL);
 810                                 }
 811                                 if (code && verbose) {
 812                                         rprintf(code, "%s\n",
 813                                                 safe_fname(fname));
 814                                 }
 815                         }
 816                 } else {
 817                         if (itemizing)
 818                                 itemize(file, ndx, statret, &st, 0, 0, NULL);
 819                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
 820                 }
 821                 return;
 822         }
 823
 824         if (preserve_hard_links && hard_link_check(file, ndx, HL_CHECK_MASTER))
 825                 return;
 826
 827         if (!S_ISREG(file->mode)) {
 828                 rprintf(FINFO, "skipping non-regular file \"%s\"\n",
 829                         safe_fname(fname));
 830                 return;
 831         }
 832
 833         if (opt_ignore_existing && statret == 0) {
 834                 if (verbose > 1)
 835                         rprintf(FINFO, "%s exists\n", safe_fname(fname));
 836                 return;
 837         }
 838
 839         if (update_only && statret == 0
 840             && cmp_modtime(st.st_mtime, file->modtime) > 0) {
 841                 if (verbose > 1)
 842                         rprintf(FINFO, "%s is newer\n", safe_fname(fname));
 843                 return;
 844         }
 845
 846         fnamecmp = fname;
 847         fnamecmp_type = FNAMECMP_FNAME;
 848
 849         if (statret == 0 && !S_ISREG(st.st_mode)) {
 850                 if (delete_item(fname, st.st_mode, DEL_TERSE) != 0)
 851                         return;
 852                 statret = -1;
 853                 stat_errno = ENOENT;
 854         }
 855
 856         if (statret != 0 && basis_dir[0] != NULL) {
 857                 int best_match = -1;
 858                 int match_level = 0;
 859                 int i = 0;
 860                 do {
 861                         pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 862                                  basis_dir[i], fname);
 863                         if (link_stat(fnamecmpbuf, &st, 0) < 0
 864                             || !S_ISREG(st.st_mode))
 865                                 continue;
 866                         switch (match_level) {
 867                         case 0:
 868                                 best_match = i;
 869                                 match_level = 1;
 870                                 /* FALL THROUGH */
 871                         case 1:
 872                                 if (!unchanged_file(fnamecmpbuf, file, &st))
 873                                         continue;
 874                                 best_match = i;
 875                                 match_level = 2;
 876                                 if (copy_dest)
 877                                         break;
 878                                 /* FALL THROUGH */
 879                         case 2:
 880                                 if (!unchanged_attrs(file, &st))
 881                                         continue;
 882                                 best_match = i;
 883                                 match_level = 3;
 884                                 break;
 885                         }
 886                         break;
 887                 } while (basis_dir[++i] != NULL);
 888                 if (match_level) {
 889                         statret = 0;
 890                         if (i != best_match) {
 891                                 i = best_match;
 892                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 893                                          basis_dir[i], fname);
 894                                 if (link_stat(fnamecmpbuf, &st, 0) < 0) {
 895                                         match_level = 0;
 896                                         statret = -1;
 897                                         stat_errno = errno;
 898                                 }
 899                         }
 900 #ifdef HAVE_LINK
 901                         if (link_dest && match_level == 3) {
 902                                 if (hard_link_one(file, ndx, fname, -1, &st,
 903                                                   fnamecmpbuf, 1,
 904                                                   itemizing && verbose > 1,
 905                                                   code) == 0)
 906                                         return;
 907                                 if (verbose) {
 908                                         rsyserr(FINFO, errno, "link %s => %s",
 909                                                 full_fname(fnamecmpbuf),
 910                                                 safe_fname(fname));
 911                                 }
 912                                 match_level = 2;
 913                         }
 914 #endif
 915                         if (match_level == 2) {
 916                                 /* Copy the file locally. */
 917                                 if (copy_file(fnamecmpbuf, fname, file->mode) < 0) {
 918                                         if (verbose) {
 919                                                 rsyserr(FINFO, errno,
 920                                                         "copy_file %s => %s",
 921                                                         full_fname(fnamecmpbuf),
 922                                                         safe_fname(fname));
 923                                         }
 924                                         match_level = 0;
 925                                         statret = -1;
 926                                 } else {
 927                                         if (itemizing) {
 928                                                 itemize(file, ndx, 0, &st,
 929                                                         ITEM_LOCAL_CHANGE, 0,
 930                                                         NULL);
 931                                         } else if (verbose && code) {
 932                                                 rprintf(code, "%s\n",
 933                                                         safe_fname(fname));
 934                                         }
 935                                         set_perms(fname, file, NULL,
 936                                                   maybe_PERMS_REPORT);
 937                                         if (preserve_hard_links
 938                                             && file->link_u.links) {
 939                                                 hard_link_cluster(file, ndx,
 940                                                                   itemizing,
 941                                                                   code);
 942                                         }
 943                                         return;
 944                                 }
 945                         } else if (compare_dest || match_level == 1) {
 946                                 fnamecmp = fnamecmpbuf;
 947                                 fnamecmp_type = i;
 948                         }
 949                 }
 950         }
 951
 952         real_ret = statret;
 953         real_st = st;
 954
 955         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
 956             && link_stat(partialptr, &partial_st, 0) == 0
 957             && S_ISREG(partial_st.st_mode)) {
 958                 if (statret != 0)
 959                         goto prepare_to_open;
 960         } else
 961                 partialptr = NULL;
 962
 963         if (statret != 0 && fuzzy_basis && dry_run <= 1) {
 964                 int j = find_fuzzy(file, fuzzy_dirlist);
 965                 if (j >= 0) {
 966                         fuzzy_file = fuzzy_dirlist->files[j];
 967                         f_name_to(fuzzy_file, fnamecmpbuf);
 968                         if (verbose > 2) {
 969                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
 970                                         safe_fname(fname), safe_fname(fnamecmpbuf));
 971                         }
 972                         st.st_size = fuzzy_file->length;
 973                         statret = 0;
 974                         fnamecmp = fnamecmpbuf;
 975                         fnamecmp_type = FNAMECMP_FUZZY;
 976                 }
 977         }
 978
 979         if (statret != 0) {
 980                 if (preserve_hard_links && hard_link_check(file, ndx, HL_SKIP))
 981                         return;
 982                 if (stat_errno == ENOENT)
 983                         goto notify_others;
 984                 if (verbose > 1) {
 985                         rsyserr(FERROR, stat_errno,
 986                                 "recv_generator: failed to stat %s",
 987                                 full_fname(fname));
 988                 }
 989                 return;
 990         }
 991
 992         if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
 993                 ;
 994         else if (fnamecmp_type == FNAMECMP_FUZZY)
 995                 ;
 996         else if (unchanged_file(fnamecmp, file, &st)) {
 997                 if (fnamecmp_type == FNAMECMP_FNAME) {
 998                         if (itemizing) {
 999                                 itemize(file, ndx, real_ret, &real_st,
1000                                         0, 0, NULL);
1001                         }
1002                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
1003                         if (preserve_hard_links && file->link_u.links)
1004                                 hard_link_cluster(file, ndx, itemizing, code);
1005                         return;
1006                 }
1007                 /* Only --compare-dest gets here. */
1008                 itemize(file, ndx, real_ret, &real_st,
1009                         ITEM_NO_DEST_AND_NO_UPDATE, 0, NULL);
1010                 return;
1011         }
1012
1013 prepare_to_open:
1014         if (partialptr) {
1015                 st = partial_st;
1016                 fnamecmp = partialptr;
1017                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1018                 statret = 0;
1019         }
1020
1021         if (dry_run || read_batch || whole_file)
1022                 goto notify_others;
1023
1024         if (fuzzy_basis) {
1025                 int j = flist_find(fuzzy_dirlist, file);
1026                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1027                         fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY;
1028         }
1029
1030         /* open the file */
1031         fd = do_open(fnamecmp, O_RDONLY, 0);
1032
1033         if (fd == -1) {
1034                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1035                         full_fname(fnamecmp));
1036             pretend_missing:
1037                 /* pretend the file didn't exist */
1038                 if (preserve_hard_links && hard_link_check(file, ndx, HL_SKIP))
1039                         return;
1040                 statret = real_ret = -1;
1041                 goto notify_others;
1042         }
1043
1044         if (inplace && make_backups && fnamecmp_type == FNAMECMP_FNAME) {
1045                 if (!(backupptr = get_backup_name(fname))) {
1046                         close(fd);
1047                         return;
1048                 }
1049                 if (!(back_file = make_file(fname, NULL, NO_FILTERS))) {
1050                         close(fd);
1051                         goto pretend_missing;
1052                 }
1053                 if (robust_unlink(backupptr) && errno != ENOENT) {
1054                         rsyserr(FERROR, errno, "unlink %s",
1055                                 full_fname(backupptr));
1056                         free(back_file);
1057                         close(fd);
1058                         return;
1059                 }
1060                 if ((f_copy = do_open(backupptr,
1061                     O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1062                         rsyserr(FERROR, errno, "open %s",
1063                                 full_fname(backupptr));
1064                         free(back_file);
1065                         close(fd);
1066                         return;
1067                 }
1068                 fnamecmp_type = FNAMECMP_BACKUP;
1069         }
1070
1071         if (verbose > 3) {
1072                 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1073                         safe_fname(fnamecmp), (double)st.st_size);
1074         }
1075
1076         if (verbose > 2)
1077                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1078
1079 notify_others:
1080         write_int(f_out, ndx);
1081         if (itemizing) {
1082                 int iflags = ITEM_TRANSFER;
1083                 if (always_checksum)
1084                         iflags |= ITEM_REPORT_CHECKSUM;
1085                 if (fnamecmp_type != FNAMECMP_FNAME)
1086                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1087                 if (fnamecmp_type == FNAMECMP_FUZZY)
1088                         iflags |= ITEM_XNAME_FOLLOWS;
1089                 itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type,
1090                         fuzzy_file ? fuzzy_file->basename : NULL);
1091         }
1092
1093         if (dry_run) {
1094                 if (preserve_hard_links && file->link_u.links)
1095                         hard_link_cluster(file, ndx, itemizing, code);
1096                 return;
1097         }
1098         if (read_batch)
1099                 return;
1100
1101         if (statret != 0 || whole_file) {
1102                 write_sum_head(f_out, NULL);
1103                 return;
1104         }
1105
1106         generate_and_send_sums(fd, st.st_size, f_out, f_copy);
1107
1108         if (f_copy >= 0) {
1109                 close(f_copy);
1110                 set_perms(backupptr, back_file, NULL, 0);
1111                 if (verbose > 1) {
1112                         rprintf(FINFO, "backed up %s to %s\n",
1113                                 safe_fname(fname), safe_fname(backupptr));
1114                 }
1115                 free(back_file);
1116         }
1117
1118         close(fd);
1119 }
1120
1121
1122 void generate_files(int f_out, struct file_list *flist, char *local_name)
1123 {
1124         int i, lull_mod;
1125         char fbuf[MAXPATHLEN];
1126         int itemizing, maybe_PERMS_REPORT;
1127         enum logcode code;
1128         int need_retouch_dir_times = preserve_times && !omit_dir_times;
1129         int need_retouch_dir_perms = 0;
1130         int save_only_existing = only_existing;
1131         int save_opt_ignore_existing = opt_ignore_existing;
1132         int save_do_progress = do_progress;
1133
1134         allowed_lull = read_batch ? 0 : (io_timeout + 1) / 2;
1135         lull_mod = allowed_lull * 5;
1136
1137         if (protocol_version >= 29) {
1138                 itemizing = 1;
1139                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1140                 code = daemon_log_format_has_i ? 0 : FLOG;
1141         } else if (am_daemon) {
1142                 itemizing = daemon_log_format_has_i && !dry_run;
1143                 maybe_PERMS_REPORT = PERMS_REPORT;
1144                 code = itemizing || dry_run ? FCLIENT : FINFO;
1145         } else if (!am_server) {
1146                 itemizing = log_format_has_i;
1147                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1148                 code = itemizing ? 0 : FINFO;
1149         } else {
1150                 itemizing = 0;
1151                 maybe_PERMS_REPORT = PERMS_REPORT;
1152                 code = FINFO;
1153         }
1154
1155         if (verbose > 2) {
1156                 rprintf(FINFO, "generator starting pid=%ld count=%d\n",
1157                         (long)getpid(), flist->count);
1158         }
1159
1160         if (delete_before && !local_name && flist->count > 0)
1161                 do_delete_pass(flist);
1162         do_progress = 0;
1163
1164         if (whole_file < 0)
1165                 whole_file = 0;
1166         if (verbose >= 2) {
1167                 rprintf(FINFO, "delta-transmission %s\n",
1168                         whole_file
1169                         ? "disabled for local transfer or --whole-file"
1170                         : "enabled");
1171         }
1172
1173         if (protocol_version < 29)
1174                 ignore_timeout = 1;
1175
1176         for (i = 0; i < flist->count; i++) {
1177                 struct file_struct *file = flist->files[i];
1178
1179                 if (!file->basename)
1180                         continue;
1181
1182                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1183                                file, i, itemizing, maybe_PERMS_REPORT, code,
1184                                f_out);
1185
1186                 /* We need to ensure that any dirs we create have writeable
1187                  * permissions during the time we are putting files within
1188                  * them.  This is then fixed after the transfer is done. */
1189                 if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)
1190                     && !list_only) {
1191                         int mode = file->mode | S_IWUSR; /* user write */
1192                         char *fname = local_name ? local_name : fbuf;
1193                         if (do_chmod(fname, mode & CHMOD_BITS) < 0) {
1194                                 rsyserr(FERROR, errno,
1195                                         "failed to modify permissions on %s",
1196                                         full_fname(fname));
1197                         }
1198                         need_retouch_dir_perms = 1;
1199                 }
1200
1201                 if (preserve_hard_links)
1202                         check_for_finished_hlinks(itemizing, code);
1203
1204                 if (allowed_lull && !(i % lull_mod))
1205                         maybe_send_keepalive();
1206         }
1207         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1208         if (delete_during)
1209                 delete_in_dir(NULL, NULL, NULL);
1210
1211         phase++;
1212         csum_length = SUM_LENGTH;
1213         only_existing = max_size = opt_ignore_existing = 0;
1214         update_only = always_checksum = size_only = 0;
1215         ignore_times = 1;
1216         make_backups = 0; /* avoid a duplicate backup for inplace processing */
1217
1218         /* We expect to just sit around now, so don't exit on a timeout.
1219          * If we really get a timeout then the other process should exit. */
1220         ignore_timeout = 1;
1221
1222         if (verbose > 2)
1223                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1224
1225         write_int(f_out, -1);
1226
1227         /* files can cycle through the system more than once
1228          * to catch initial checksum errors */
1229         while ((i = get_redo_num(itemizing, code)) != -1) {
1230                 struct file_struct *file = flist->files[i];
1231                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1232                                file, i, itemizing, maybe_PERMS_REPORT, code,
1233                                f_out);
1234         }
1235
1236         phase++;
1237         only_existing = save_only_existing;
1238         opt_ignore_existing = save_opt_ignore_existing;
1239
1240         if (verbose > 2)
1241                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1242
1243         write_int(f_out, -1);
1244         /* Reduce round-trip lag-time for a useless delay-updates phase. */
1245         if (protocol_version >= 29 && !delay_updates)
1246                 write_int(f_out, -1);
1247
1248         /* Read MSG_DONE for the redo phase (and any prior messages). */
1249         get_redo_num(itemizing, code);
1250
1251         if (protocol_version >= 29) {
1252                 phase++;
1253                 if (verbose > 2)
1254                         rprintf(FINFO, "generate_files phase=%d\n", phase);
1255                 if (delay_updates)
1256                         write_int(f_out, -1);
1257                 /* Read MSG_DONE for delay-updates phase & prior messages. */
1258                 get_redo_num(itemizing, code);
1259         }
1260
1261         do_progress = save_do_progress;
1262         if (delete_after && !local_name && flist->count > 0)
1263                 do_delete_pass(flist);
1264
1265         if ((need_retouch_dir_perms || need_retouch_dir_times)
1266             && !list_only && !local_name && !dry_run) {
1267                 int j = 0;
1268                 /* Now we need to fix any directory permissions that were
1269                  * modified during the transfer and/or re-set any tweaked
1270                  * modified-time values. */
1271                 for (i = 0; i < flist->count; i++) {
1272                         struct file_struct *file = flist->files[i];
1273                         if (!file->basename || !S_ISDIR(file->mode))
1274                                 continue;
1275                         if (!need_retouch_dir_times && file->mode & S_IWUSR)
1276                                 continue;
1277                         recv_generator(f_name(file), file, i, itemizing,
1278                                        maybe_PERMS_REPORT, code, -1);
1279                         if (allowed_lull && !(j++ % lull_mod))
1280                                 maybe_send_keepalive();
1281                 }
1282         }
1283         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1284
1285         if (max_delete > 0 && deletion_count > max_delete) {
1286                 rprintf(FINFO,
1287                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
1288                         deletion_count - max_delete);
1289                 io_error |= IOERR_DEL_LIMIT;
1290         }
1291
1292         if (verbose > 2)
1293                 rprintf(FINFO,"generate_files finished\n");
1294 }