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 do_xfers;
  29 extern int log_format_has_i;
  30 extern int log_format_has_o_or_i;
  31 extern int daemon_log_format_has_i;
  32 extern int am_root;
  33 extern int am_server;
  34 extern int am_daemon;
  35 extern int do_progress;
  36 extern int recurse;
  37 extern int relative_paths;
  38 extern int keep_dirlinks;
  39 extern int preserve_links;
  40 extern int preserve_devices;
  41 extern int preserve_hard_links;
  42 extern int preserve_perms;
  43 extern int preserve_uid;
  44 extern int preserve_gid;
  45 extern int preserve_times;
  46 extern int omit_dir_times;
  47 extern int delete_before;
  48 extern int delete_during;
  49 extern int delete_after;
  50 extern int module_id;
  51 extern int ignore_errors;
  52 extern int remove_sent_files;
  53 extern int delay_updates;
  54 extern int update_only;
  55 extern int opt_ignore_existing;
  56 extern int inplace;
  57 extern int make_backups;
  58 extern int csum_length;
  59 extern int ignore_times;
  60 extern int size_only;
  61 extern OFF_T max_size;
  62 extern int io_error;
  63 extern int allowed_lull;
  64 extern int sock_f_out;
  65 extern int ignore_timeout;
  66 extern int protocol_version;
  67 extern int fuzzy_basis;
  68 extern int always_checksum;
  69 extern char *partial_dir;
  70 extern char *basis_dir[];
  71 extern int compare_dest;
  72 extern int copy_dest;
  73 extern int link_dest;
  74 extern int whole_file;
  75 extern int list_only;
  76 extern int read_batch;
  77 extern int only_existing;
  78 extern int orig_umask;
  79 extern int safe_symlinks;
  80 extern long block_size; /* "long" because popt can't set an int32. */
  81 extern int max_delete;
  82 extern int force_delete;
  83 extern int one_file_system;
  84 extern struct stats stats;
  85 extern dev_t filesystem_dev;
  86 extern char *backup_dir;
  87 extern char *backup_suffix;
  88 extern int backup_suffix_len;
  89 extern struct file_list *the_file_list;
  90 extern struct filter_list_struct server_filter_list;
  91
  92 static int deletion_count = 0; /* used to implement --max-delete */
  93
  94
  95 static int is_backup_file(char *fn)
  96 {
  97         int k = strlen(fn) - backup_suffix_len;
  98         return k > 0 && strcmp(fn+k, backup_suffix) == 0;
  99 }
 100
 101
 102 /* Delete a file or directory.  If DEL_FORCE_RECURSE is set in the flags, or if
 103  * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE
 104  * is not set in the flags. */
 105 static int delete_item(char *fname, int mode, int flags)
 106 {
 107         struct file_list *dirlist;
 108         char buf[MAXPATHLEN];
 109         int j, dlen, zap_dir, ok;
 110         void *save_filters;
 111
 112         if (!S_ISDIR(mode)) {
 113                 if (max_delete && ++deletion_count > max_delete)
 114                         return 0;
 115                 if (make_backups && (backup_dir || !is_backup_file(fname)))
 116                         ok = make_backup(fname);
 117                 else
 118                         ok = robust_unlink(fname) == 0;
 119                 if (ok) {
 120                         if (!(flags & DEL_TERSE))
 121                                 log_delete(fname, mode);
 122                         return 0;
 123                 }
 124                 if (errno == ENOENT) {
 125                         deletion_count--;
 126                         return 0;
 127                 }
 128                 rsyserr(FERROR, errno, "delete_file: unlink %s failed",
 129                         full_fname(fname));
 130                 return -1;
 131         }
 132
 133         zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse))
 134                 && !(flags & DEL_NO_RECURSE);
 135         if ((max_delete && ++deletion_count > max_delete)
 136             || (dry_run && zap_dir)) {
 137                 ok = 0;
 138                 errno = ENOTEMPTY;
 139         } else if (make_backups && !backup_dir && !is_backup_file(fname)
 140             && !(flags & DEL_FORCE_RECURSE))
 141                 ok = make_backup(fname);
 142         else
 143                 ok = do_rmdir(fname) == 0;
 144         if (ok) {
 145                 if (!(flags & DEL_TERSE))
 146                         log_delete(fname, mode);
 147                 return 0;
 148         }
 149         if (errno == ENOENT) {
 150                 deletion_count--;
 151                 return 0;
 152         }
 153         if (!zap_dir) {
 154                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 155                         full_fname(fname));
 156                 return -1;
 157         }
 158         flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */
 159         deletion_count--;
 160
 161         dlen = strlcpy(buf, fname, MAXPATHLEN);
 162         save_filters = push_local_filters(buf, dlen);
 163
 164         dirlist = get_dirlist(buf, dlen, 0);
 165         for (j = dirlist->count; j--; ) {
 166                 struct file_struct *fp = dirlist->files[j];
 167
 168                 if (fp->flags & FLAG_MOUNT_POINT)
 169                         continue;
 170
 171                 f_name_to(fp, buf);
 172                 delete_item(buf, fp->mode, flags & ~DEL_TERSE);
 173         }
 174         flist_free(dirlist);
 175
 176         pop_local_filters(save_filters);
 177
 178         if (max_delete && ++deletion_count > max_delete)
 179                 return 0;
 180
 181         if (do_rmdir(fname) == 0) {
 182                 if (!(flags & DEL_TERSE))
 183                         log_delete(fname, mode);
 184         } else if (errno != ENOTEMPTY && errno != EEXIST && errno != ENOENT) {
 185                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 186                         full_fname(fname));
 187                 return -1;
 188         }
 189
 190         return 0;
 191 }
 192
 193
 194 /* This function is used to implement per-directory deletion, and is used by
 195  * all the --delete-WHEN options.  Note that the fbuf pointer must point to a
 196  * MAXPATHLEN buffer with the name of the directory in it (the functions we
 197  * call will append names onto the end, but the old dir value will be restored
 198  * on exit). */
 199 static void delete_in_dir(struct file_list *flist, char *fbuf,
 200                           struct file_struct *file)
 201 {
 202         static int min_depth = MAXPATHLEN, cur_depth = -1;
 203         static void *filt_array[MAXPATHLEN/2+1];
 204         static int already_warned = 0;
 205         struct file_list *dirlist;
 206         char delbuf[MAXPATHLEN];
 207         STRUCT_STAT st;
 208         int dlen, i;
 209
 210         if (!flist) {
 211                 while (cur_depth >= min_depth)
 212                         pop_local_filters(filt_array[cur_depth--]);
 213                 min_depth = MAXPATHLEN;
 214                 cur_depth = -1;
 215                 return;
 216         }
 217
 218         if (verbose > 2)
 219                 rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf));
 220
 221         if (allowed_lull)
 222                 maybe_send_keepalive();
 223
 224         if (file->dir.depth >= MAXPATHLEN/2+1)
 225                 return; /* Impossible... */
 226
 227         if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) {
 228                 if (already_warned)
 229                         return;
 230                 rprintf(FINFO,
 231                         "IO error encountered -- skipping file deletion\n");
 232                 already_warned = 1;
 233                 return;
 234         }
 235
 236         while (cur_depth >= file->dir.depth && cur_depth >= min_depth)
 237                 pop_local_filters(filt_array[cur_depth--]);
 238         cur_depth = file->dir.depth;
 239         if (min_depth > cur_depth)
 240                 min_depth = cur_depth;
 241         dlen = strlen(fbuf);
 242         filt_array[cur_depth] = push_local_filters(fbuf, dlen);
 243
 244         if (link_stat(fbuf, &st, keep_dirlinks) < 0)
 245                 return;
 246
 247         if (one_file_system) {
 248                 if (file->flags & FLAG_TOP_DIR)
 249                         filesystem_dev = st.st_dev;
 250                 else if (filesystem_dev != st.st_dev)
 251                         return;
 252         }
 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                 struct file_struct *fp = dirlist->files[i];
 260                 if (!fp->basename || fp->flags & FLAG_MOUNT_POINT)
 261                         continue;
 262                 if (flist_find(flist, fp) < 0) {
 263                         int mode = fp->mode;
 264                         f_name_to(fp, delbuf);
 265                         delete_item(delbuf, mode, DEL_FORCE_RECURSE);
 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          || list_only)
 281                 return;
 282
 283         for (j = 0; j < flist->count; j++) {
 284                 struct file_struct *file = flist->files[j];
 285
 286                 if (!(file->flags & FLAG_DEL_HERE))
 287                         continue;
 288
 289                 f_name_to(file, fbuf);
 290                 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
 291                         rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf));
 292
 293                 delete_in_dir(flist, fbuf, file);
 294         }
 295         if (do_progress && !am_server)
 296                 rprintf(FINFO, "                    \r");
 297 }
 298
 299 static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
 300 {
 301         if (preserve_perms
 302          && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
 303                 return 0;
 304
 305         if (am_root && preserve_uid && st->st_uid != file->uid)
 306                 return 0;
 307
 308         if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
 309                 return 0;
 310
 311         return 1;
 312 }
 313
 314
 315 void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st,
 316              int32 iflags, uchar fnamecmp_type, char *xname)
 317 {
 318         if (statret == 0) {
 319                 if (S_ISREG(file->mode) && file->length != st->st_size)
 320                         iflags |= ITEM_REPORT_SIZE;
 321                 if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) {
 322                         int keep_time = !preserve_times ? 0
 323                             : S_ISDIR(file->mode) ? !omit_dir_times
 324                             : !S_ISLNK(file->mode);
 325
 326                         if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time
 327                              && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
 328                             || (keep_time && cmp_modtime(file->modtime, st->st_mtime) != 0))
 329                                 iflags |= ITEM_REPORT_TIME;
 330                         if (preserve_perms && file->mode != st->st_mode)
 331                                 iflags |= ITEM_REPORT_PERMS;
 332                         if (preserve_uid && am_root && file->uid != st->st_uid)
 333                                 iflags |= ITEM_REPORT_OWNER;
 334                         if (preserve_gid && file->gid != GID_NONE
 335                             && st->st_gid != file->gid)
 336                                 iflags |= ITEM_REPORT_GROUP;
 337                 }
 338         } else
 339                 iflags |= ITEM_IS_NEW;
 340
 341         iflags &= 0xffff;
 342         if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1
 343           || (xname && *xname)) && !read_batch) {
 344                 if (protocol_version >= 29) {
 345                         if (ndx >= 0)
 346                                 write_int(sock_f_out, ndx);
 347                         write_shortint(sock_f_out, iflags);
 348                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 349                                 write_byte(sock_f_out, fnamecmp_type);
 350                         if (iflags & ITEM_XNAME_FOLLOWS)
 351                                 write_vstring(sock_f_out, xname, strlen(xname));
 352                 } else if (ndx >= 0)
 353                         log_item(file, &stats, iflags, xname);
 354         }
 355 }
 356
 357
 358 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 359 static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 360 {
 361         if (st->st_size != file->length)
 362                 return 0;
 363
 364         /* if always checksum is set then we use the checksum instead
 365            of the file time to determine whether to sync */
 366         if (always_checksum && S_ISREG(st->st_mode)) {
 367                 char sum[MD4_SUM_LENGTH];
 368                 file_checksum(fn, sum, st->st_size);
 369                 return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
 370                                                         : MD4_SUM_LENGTH) == 0;
 371         }
 372
 373         if (size_only)
 374                 return 1;
 375
 376         if (ignore_times)
 377                 return 0;
 378
 379         return cmp_modtime(st->st_mtime, file->modtime) == 0;
 380 }
 381
 382
 383 /*
 384  * set (initialize) the size entries in the per-file sum_struct
 385  * calculating dynamic block and checksum sizes.
 386  *
 387  * This is only called from generate_and_send_sums() but is a separate
 388  * function to encapsulate the logic.
 389  *
 390  * The block size is a rounded square root of file length.
 391  *
 392  * The checksum size is determined according to:
 393  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 394  * provided by Donovan Baarda which gives a probability of rsync
 395  * algorithm corrupting data and falling back using the whole md4
 396  * checksums.
 397  *
 398  * This might be made one of several selectable heuristics.
 399  */
 400 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 401 {
 402         int32 blength;
 403         int s2length;
 404
 405         if (block_size)
 406                 blength = block_size;
 407         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 408                 blength = BLOCK_SIZE;
 409         else {
 410                 int32 c;
 411                 int64 l;
 412                 int cnt;
 413                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 414                 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
 415                         blength = MAX_BLOCK_SIZE;
 416                 else {
 417                     blength = 0;
 418                     do {
 419                             blength |= c;
 420                             if (len < (int64)blength * blength)
 421                                     blength &= ~c;
 422                             c >>= 1;
 423                     } while (c >= 8);   /* round to multiple of 8 */
 424                     blength = MAX(blength, BLOCK_SIZE);
 425                 }
 426         }
 427
 428         if (protocol_version < 27) {
 429                 s2length = csum_length;
 430         } else if (csum_length == SUM_LENGTH) {
 431                 s2length = SUM_LENGTH;
 432         } else {
 433                 int32 c;
 434                 int64 l;
 435                 int b = BLOCKSUM_BIAS;
 436                 for (l = len; l >>= 1; b += 2) {}
 437                 for (c = blength; c >>= 1 && b; b--) {}
 438                 /* add a bit, subtract rollsum, round up. */
 439                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 440                 s2length = MAX(s2length, csum_length);
 441                 s2length = MIN(s2length, SUM_LENGTH);
 442         }
 443
 444         sum->flength    = len;
 445         sum->blength    = blength;
 446         sum->s2length   = s2length;
 447         sum->count      = (len + (blength - 1)) / blength;
 448         sum->remainder  = (len % blength);
 449
 450         if (sum->count && verbose > 2) {
 451                 rprintf(FINFO,
 452                         "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
 453                         (double)sum->count, (long)sum->remainder, (long)sum->blength,
 454                         sum->s2length, (double)sum->flength);
 455         }
 456 }
 457
 458
 459 /*
 460  * Generate and send a stream of signatures/checksums that describe a buffer
 461  *
 462  * Generate approximately one checksum every block_len bytes.
 463  */
 464 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 465 {
 466         int32 i;
 467         struct map_struct *mapbuf;
 468         struct sum_struct sum;
 469         OFF_T offset = 0;
 470
 471         sum_sizes_sqroot(&sum, len);
 472
 473         if (len > 0)
 474                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 475         else
 476                 mapbuf = NULL;
 477
 478         write_sum_head(f_out, &sum);
 479
 480         for (i = 0; i < sum.count; i++) {
 481                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 482                 char *map = map_ptr(mapbuf, offset, n1);
 483                 uint32 sum1 = get_checksum1(map, n1);
 484                 char sum2[SUM_LENGTH];
 485
 486                 if (f_copy >= 0)
 487                         full_write(f_copy, map, n1);
 488
 489                 get_checksum2(map, n1, sum2);
 490
 491                 if (verbose > 3) {
 492                         rprintf(FINFO,
 493                                 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
 494                                 (double)i, (double)offset, (long)n1,
 495                                 (unsigned long)sum1);
 496                 }
 497                 write_int(f_out, sum1);
 498                 write_buf(f_out, sum2, sum.s2length);
 499                 len -= n1;
 500                 offset += n1;
 501         }
 502
 503         if (mapbuf)
 504                 unmap_file(mapbuf);
 505 }
 506
 507
 508 /* Try to find a filename in the same dir as "fname" with a similar name. */
 509 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
 510 {
 511         int fname_len, fname_suf_len;
 512         const char *fname_suf, *fname = file->basename;
 513         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 514         int j, lowest_j = -1;
 515
 516         fname_len = strlen(fname);
 517         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 518
 519         for (j = 0; j < dirlist->count; j++) {
 520                 struct file_struct *fp = dirlist->files[j];
 521                 const char *suf, *name;
 522                 int len, suf_len;
 523                 uint32 dist;
 524
 525                 if (!S_ISREG(fp->mode) || !fp->length
 526                     || fp->flags & FLAG_NO_FUZZY)
 527                         continue;
 528
 529                 name = fp->basename;
 530
 531                 if (fp->length == file->length
 532                     && cmp_modtime(fp->modtime, file->modtime) == 0) {
 533                         if (verbose > 4) {
 534                                 rprintf(FINFO,
 535                                         "fuzzy size/modtime match for %s\n",
 536                                         name);
 537                         }
 538                         return j;
 539                 }
 540
 541                 len = strlen(name);
 542                 suf = find_filename_suffix(name, len, &suf_len);
 543
 544                 dist = fuzzy_distance(name, len, fname, fname_len);
 545                 /* Add some extra weight to how well the suffixes match. */
 546                 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
 547                       * 10;
 548                 if (verbose > 4) {
 549                         rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 550                                 name, (int)(dist>>16), (int)(dist&0xFFFF));
 551                 }
 552                 if (dist <= lowest_dist) {
 553                         lowest_dist = dist;
 554                         lowest_j = j;
 555                 }
 556         }
 557
 558         return lowest_j;
 559 }
 560
 561 void check_for_finished_hlinks(int itemizing, enum logcode code)
 562 {
 563         struct file_struct *file;
 564         int ndx;
 565
 566         while ((ndx = get_hlink_num()) != -1) {
 567                 if (ndx < 0 || ndx >= the_file_list->count)
 568                         continue;
 569
 570                 file = the_file_list->files[ndx];
 571                 if (!file->link_u.links)
 572                         continue;
 573
 574                 hard_link_cluster(file, ndx, itemizing, code);
 575         }
 576 }
 577
 578 static int phase = 0;
 579
 580 /* Acts on the_file_list->file's ndx'th item, whose name is fname.  If a dir,
 581  * make sure it exists, and has the right permissions/timestamp info.  For
 582  * all other non-regular files (symlinks, etc.) we create them here.  For
 583  * regular files that have changed, we try to find a basis file and then
 584  * start sending checksums.
 585  *
 586  * Note that f_out is set to -1 when doing final directory-permission and
 587  * modification-time repair. */
 588 static void recv_generator(char *fname, struct file_struct *file, int ndx,
 589                            int itemizing, int maybe_PERMS_REPORT,
 590                            enum logcode code, int f_out)
 591 {
 592         static int missing_below = -1, excluded_below = -1;
 593         static char *fuzzy_dirname = "";
 594         static struct file_list *fuzzy_dirlist = NULL;
 595         struct file_struct *fuzzy_file = NULL;
 596         int fd = -1, f_copy = -1;
 597         STRUCT_STAT st, real_st, partial_st;
 598         struct file_struct *back_file = NULL;
 599         int statret, real_ret, stat_errno;
 600         char *fnamecmp, *partialptr, *backupptr = NULL;
 601         char fnamecmpbuf[MAXPATHLEN];
 602         uchar fnamecmp_type;
 603
 604         if (list_only)
 605                 return;
 606
 607         if (!fname) {
 608                 if (fuzzy_dirlist) {
 609                         flist_free(fuzzy_dirlist);
 610                         fuzzy_dirlist = NULL;
 611                         fuzzy_dirname = "";
 612                 }
 613                 if (missing_below >= 0) {
 614                         dry_run--;
 615                         missing_below = -1;
 616                 }
 617                 return;
 618         }
 619
 620         if (verbose > 2) {
 621                 rprintf(FINFO, "recv_generator(%s,%d)\n",
 622                         safe_fname(fname), ndx);
 623         }
 624
 625         if (server_filter_list.head) {
 626                 if (excluded_below >= 0) {
 627                         if (file->dir.depth > excluded_below)
 628                                 goto skipping;
 629                         excluded_below = -1;
 630                 }
 631                 if (check_filter(&server_filter_list, fname,
 632                                  S_ISDIR(file->mode)) < 0) {
 633                         if (S_ISDIR(file->mode))
 634                                 excluded_below = file->dir.depth;
 635                     skipping:
 636                         if (verbose) {
 637                                 rprintf(FINFO,
 638                                         "skipping server-excluded file \"%s\"\n",
 639                                         safe_fname(fname));
 640                         }
 641                         return;
 642                 }
 643         }
 644
 645         if (missing_below >= 0 && file->dir.depth <= missing_below) {
 646                 dry_run--;
 647                 missing_below = -1;
 648         }
 649         if (dry_run > 1) {
 650                 statret = -1;
 651                 stat_errno = ENOENT;
 652         } else {
 653                 if (fuzzy_basis && S_ISREG(file->mode)) {
 654                         char *dn = file->dirname ? file->dirname : ".";
 655                         if (fuzzy_dirname != dn
 656                             && strcmp(fuzzy_dirname, dn) != 0) {
 657                                 if (fuzzy_dirlist)
 658                                         flist_free(fuzzy_dirlist);
 659                                 fuzzy_dirlist = get_dirlist(dn, -1, 1);
 660                         }
 661                         fuzzy_dirname = dn;
 662                 }
 663
 664                 statret = link_stat(fname, &st,
 665                                     keep_dirlinks && S_ISDIR(file->mode));
 666                 stat_errno = errno;
 667         }
 668
 669         if (only_existing && statret == -1 && stat_errno == ENOENT) {
 670                 /* we only want to update existing files */
 671                 if (verbose > 1) {
 672                         rprintf(FINFO, "not creating new %s \"%s\"\n",
 673                                 S_ISDIR(file->mode) ? "directory" : "file",
 674                                 safe_fname(fname));
 675                 }
 676                 return;
 677         }
 678
 679         if (statret == 0 && !preserve_perms
 680             && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
 681                 /* if the file exists already and we aren't perserving
 682                  * permissions then act as though the remote end sent
 683                  * us the file permissions we already have */
 684                 file->mode = (file->mode & ~CHMOD_BITS)
 685                            | (st.st_mode & CHMOD_BITS);
 686         }
 687
 688         if (S_ISDIR(file->mode)) {
 689                 /* The file to be received is a directory, so we need
 690                  * to prepare appropriately.  If there is already a
 691                  * file of that name and it is *not* a directory, then
 692                  * we need to delete it.  If it doesn't exist, then
 693                  * (perhaps recursively) create it. */
 694                 if (statret == 0 && !S_ISDIR(st.st_mode)) {
 695                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 696                                 return;
 697                         statret = -1;
 698                 }
 699                 if (dry_run && statret != 0 && missing_below < 0) {
 700                         missing_below = file->dir.depth;
 701                         dry_run++;
 702                 }
 703                 if (itemizing && f_out != -1) {
 704                         itemize(file, ndx, statret, &st,
 705                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
 706                 }
 707                 if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
 708                         if (!relative_paths || errno != ENOENT
 709                             || create_directory_path(fname, orig_umask) < 0
 710                             || do_mkdir(fname, file->mode) < 0) {
 711                                 rsyserr(FERROR, errno,
 712                                         "recv_generator: mkdir %s failed",
 713                                         full_fname(fname));
 714                         }
 715                 }
 716                 if (set_perms(fname, file, statret ? NULL : &st, 0)
 717                     && verbose && code && f_out != -1)
 718                         rprintf(code, "%s/\n", safe_fname(fname));
 719                 if (delete_during && f_out != -1 && !phase && dry_run < 2
 720                     && (file->flags & FLAG_DEL_HERE))
 721                         delete_in_dir(the_file_list, fname, file);
 722                 return;
 723         }
 724
 725         if (preserve_links && S_ISLNK(file->mode)) {
 726 #ifdef SUPPORT_LINKS
 727                 if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
 728                         if (verbose) {
 729                                 if (the_file_list->count == 1)
 730                                         fname = f_name(file);
 731                                 rprintf(FINFO,
 732                                         "ignoring unsafe symlink %s -> \"%s\"\n",
 733                                         full_fname(fname),
 734                                         safe_fname(file->u.link));
 735                         }
 736                         return;
 737                 }
 738                 if (statret == 0) {
 739                         char lnk[MAXPATHLEN];
 740                         int len;
 741
 742                         if (!S_ISDIR(st.st_mode)
 743                             && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) {
 744                                 lnk[len] = 0;
 745                                 /* A link already pointing to the
 746                                  * right place -- no further action
 747                                  * required. */
 748                                 if (strcmp(lnk, file->u.link) == 0) {
 749                                         if (itemizing) {
 750                                                 itemize(file, ndx, 0, &st, 0,
 751                                                         0, NULL);
 752                                         }
 753                                         set_perms(fname, file, &st,
 754                                                   maybe_PERMS_REPORT);
 755                                         return;
 756                                 }
 757                         }
 758                         /* Not the right symlink (or not a symlink), so
 759                          * delete it. */
 760                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 761                                 return;
 762                         if (!S_ISLNK(st.st_mode))
 763                                 statret = -1;
 764                 }
 765                 if (do_symlink(file->u.link,fname) != 0) {
 766                         rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
 767                                 full_fname(fname), safe_fname(file->u.link));
 768                 } else {
 769                         set_perms(fname,file,NULL,0);
 770                         if (itemizing) {
 771                                 itemize(file, ndx, statret, &st,
 772                                         ITEM_LOCAL_CHANGE, 0, NULL);
 773                         }
 774                         if (code && verbose) {
 775                                 rprintf(code, "%s -> %s\n", safe_fname(fname),
 776                                         safe_fname(file->u.link));
 777                         }
 778                         if (remove_sent_files && !dry_run) {
 779                                 char numbuf[4];
 780                                 SIVAL(numbuf, 0, ndx);
 781                                 send_msg(MSG_SUCCESS, numbuf, 4);
 782                         }
 783                 }
 784 #endif
 785                 return;
 786         }
 787
 788         if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
 789                 if (statret != 0 ||
 790                     st.st_mode != file->mode ||
 791                     st.st_rdev != file->u.rdev) {
 792                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 793                                 return;
 794                         if (!IS_DEVICE(st.st_mode))
 795                                 statret = -1;
 796                         if (verbose > 2) {
 797                                 rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
 798                                         safe_fname(fname),
 799                                         (int)file->mode, (int)file->u.rdev);
 800                         }
 801                         if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
 802                                 rsyserr(FERROR, errno, "mknod %s failed",
 803                                         full_fname(fname));
 804                         } else {
 805                                 set_perms(fname,file,NULL,0);
 806                                 if (itemizing) {
 807                                         itemize(file, ndx, statret, &st,
 808                                                 ITEM_LOCAL_CHANGE, 0, NULL);
 809                                 }
 810                                 if (code && verbose) {
 811                                         rprintf(code, "%s\n",
 812                                                 safe_fname(fname));
 813                                 }
 814                         }
 815                 } else {
 816                         if (itemizing)
 817                                 itemize(file, ndx, statret, &st, 0, 0, NULL);
 818                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
 819                 }
 820                 return;
 821         }
 822
 823         if (preserve_hard_links
 824             && hard_link_check(file, ndx, fname, statret, &st,
 825                                itemizing, code, HL_CHECK_MASTER))
 826                 return;
 827
 828         if (!S_ISREG(file->mode)) {
 829                 if (the_file_list->count == 1)
 830                         fname = f_name(file);
 831                 rprintf(FINFO, "skipping non-regular file \"%s\"\n",
 832                         safe_fname(fname));
 833                 return;
 834         }
 835
 836         if (max_size && file->length > max_size) {
 837                 if (verbose > 1) {
 838                         if (the_file_list->count == 1)
 839                                 fname = f_name(file);
 840                         rprintf(FINFO, "%s is over max-size\n",
 841                                 safe_fname(fname));
 842                 }
 843                 return;
 844         }
 845
 846         if (opt_ignore_existing && statret == 0) {
 847                 if (verbose > 1)
 848                         rprintf(FINFO, "%s exists\n", safe_fname(fname));
 849                 return;
 850         }
 851
 852         if (update_only && statret == 0
 853             && cmp_modtime(st.st_mtime, file->modtime) > 0) {
 854                 if (verbose > 1)
 855                         rprintf(FINFO, "%s is newer\n", safe_fname(fname));
 856                 return;
 857         }
 858
 859         fnamecmp = fname;
 860         fnamecmp_type = FNAMECMP_FNAME;
 861
 862         if (statret == 0 && !S_ISREG(st.st_mode)) {
 863                 if (delete_item(fname, st.st_mode, DEL_TERSE) != 0)
 864                         return;
 865                 statret = -1;
 866                 stat_errno = ENOENT;
 867         }
 868
 869         if (statret != 0 && basis_dir[0] != NULL) {
 870                 int best_match = -1;
 871                 int match_level = 0;
 872                 int i = 0;
 873                 do {
 874                         pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 875                                  basis_dir[i], fname);
 876                         if (link_stat(fnamecmpbuf, &st, 0) < 0
 877                             || !S_ISREG(st.st_mode))
 878                                 continue;
 879                         switch (match_level) {
 880                         case 0:
 881                                 best_match = i;
 882                                 match_level = 1;
 883                                 /* FALL THROUGH */
 884                         case 1:
 885                                 if (!unchanged_file(fnamecmpbuf, file, &st))
 886                                         continue;
 887                                 best_match = i;
 888                                 match_level = 2;
 889                                 if (copy_dest)
 890                                         break;
 891                                 /* FALL THROUGH */
 892                         case 2:
 893                                 if (!unchanged_attrs(file, &st))
 894                                         continue;
 895                                 best_match = i;
 896                                 match_level = 3;
 897                                 break;
 898                         }
 899                         break;
 900                 } while (basis_dir[++i] != NULL);
 901                 if (match_level) {
 902                         statret = 0;
 903                         if (i != best_match) {
 904                                 i = best_match;
 905                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 906                                          basis_dir[i], fname);
 907                                 if (link_stat(fnamecmpbuf, &st, 0) < 0) {
 908                                         match_level = 0;
 909                                         statret = -1;
 910                                         stat_errno = errno;
 911                                 }
 912                         }
 913 #ifdef HAVE_LINK
 914                         if (link_dest && match_level == 3) {
 915                                 if (hard_link_one(file, ndx, fname, -1, &st,
 916                                                   fnamecmpbuf, 1,
 917                                                   itemizing && verbose > 1,
 918                                                   code) == 0) {
 919                                         if (preserve_hard_links
 920                                             && file->link_u.links) {
 921                                                 hard_link_cluster(file, ndx,
 922                                                                   itemizing,
 923                                                                   code);
 924                                         }
 925                                         return;
 926                                 }
 927                                 match_level = 2;
 928                         }
 929 #endif
 930                         if (match_level == 2) {
 931                                 /* Copy the file locally. */
 932                                 if (copy_file(fnamecmpbuf, fname, file->mode) < 0) {
 933                                         if (verbose) {
 934                                                 rsyserr(FINFO, errno,
 935                                                         "copy_file %s => %s",
 936                                                         full_fname(fnamecmpbuf),
 937                                                         safe_fname(fname));
 938                                         }
 939                                         match_level = 0;
 940                                         statret = -1;
 941                                 } else {
 942                                         if (itemizing) {
 943                                                 itemize(file, ndx, 0, &st,
 944                                                         ITEM_LOCAL_CHANGE, 0,
 945                                                         NULL);
 946                                         } else if (verbose && code) {
 947                                                 rprintf(code, "%s\n",
 948                                                         safe_fname(fname));
 949                                         }
 950                                         set_perms(fname, file, NULL,
 951                                                   maybe_PERMS_REPORT);
 952                                         if (preserve_hard_links
 953                                             && file->link_u.links) {
 954                                                 hard_link_cluster(file, ndx,
 955                                                                   itemizing,
 956                                                                   code);
 957                                         }
 958                                         return;
 959                                 }
 960                         } else if (compare_dest || match_level == 1) {
 961                                 fnamecmp = fnamecmpbuf;
 962                                 fnamecmp_type = i;
 963                         }
 964                 }
 965         }
 966
 967         real_ret = statret;
 968         real_st = st;
 969
 970         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
 971             && link_stat(partialptr, &partial_st, 0) == 0
 972             && S_ISREG(partial_st.st_mode)) {
 973                 if (statret != 0)
 974                         goto prepare_to_open;
 975         } else
 976                 partialptr = NULL;
 977
 978         if (statret != 0 && fuzzy_basis && dry_run <= 1) {
 979                 int j = find_fuzzy(file, fuzzy_dirlist);
 980                 if (j >= 0) {
 981                         fuzzy_file = fuzzy_dirlist->files[j];
 982                         f_name_to(fuzzy_file, fnamecmpbuf);
 983                         if (verbose > 2) {
 984                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
 985                                         safe_fname(fname), safe_fname(fnamecmpbuf));
 986                         }
 987                         st.st_size = fuzzy_file->length;
 988                         statret = 0;
 989                         fnamecmp = fnamecmpbuf;
 990                         fnamecmp_type = FNAMECMP_FUZZY;
 991                 }
 992         }
 993
 994         if (statret != 0) {
 995                 if (preserve_hard_links
 996                     && hard_link_check(file, ndx, fname, statret, &st,
 997                                        itemizing, code, HL_SKIP))
 998                         return;
 999                 if (stat_errno == ENOENT)
1000                         goto notify_others;
1001                 if (verbose > 1) {
1002                         rsyserr(FERROR, stat_errno,
1003                                 "recv_generator: failed to stat %s",
1004                                 full_fname(fname));
1005                 }
1006                 return;
1007         }
1008
1009         if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1010                 ;
1011         else if (fnamecmp_type == FNAMECMP_FUZZY)
1012                 ;
1013         else if (unchanged_file(fnamecmp, file, &st)) {
1014                 if (fnamecmp_type == FNAMECMP_FNAME) {
1015                         if (itemizing) {
1016                                 itemize(file, ndx, real_ret, &real_st,
1017                                         0, 0, NULL);
1018                         }
1019                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
1020                         if (preserve_hard_links && file->link_u.links)
1021                                 hard_link_cluster(file, ndx, itemizing, code);
1022                         return;
1023                 }
1024                 /* Only --compare-dest gets here. */
1025                 itemize(file, ndx, real_ret, &real_st,
1026                         ITEM_NO_DEST_AND_NO_UPDATE, 0, NULL);
1027                 return;
1028         }
1029
1030 prepare_to_open:
1031         if (partialptr) {
1032                 st = partial_st;
1033                 fnamecmp = partialptr;
1034                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1035                 statret = 0;
1036         }
1037
1038         if (!do_xfers || read_batch || whole_file)
1039                 goto notify_others;
1040
1041         if (fuzzy_basis) {
1042                 int j = flist_find(fuzzy_dirlist, file);
1043                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1044                         fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY;
1045         }
1046
1047         /* open the file */
1048         fd = do_open(fnamecmp, O_RDONLY, 0);
1049
1050         if (fd == -1) {
1051                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1052                         full_fname(fnamecmp));
1053             pretend_missing:
1054                 /* pretend the file didn't exist */
1055                 if (preserve_hard_links
1056                     && hard_link_check(file, ndx, fname, statret, &st,
1057                                        itemizing, code, HL_SKIP))
1058                         return;
1059                 statret = real_ret = -1;
1060                 goto notify_others;
1061         }
1062
1063         if (inplace && make_backups && fnamecmp_type == FNAMECMP_FNAME) {
1064                 if (!(backupptr = get_backup_name(fname))) {
1065                         close(fd);
1066                         return;
1067                 }
1068                 if (!(back_file = make_file(fname, NULL, NO_FILTERS))) {
1069                         close(fd);
1070                         goto pretend_missing;
1071                 }
1072                 if (robust_unlink(backupptr) && errno != ENOENT) {
1073                         rsyserr(FERROR, errno, "unlink %s",
1074                                 full_fname(backupptr));
1075                         free(back_file);
1076                         close(fd);
1077                         return;
1078                 }
1079                 if ((f_copy = do_open(backupptr,
1080                     O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1081                         rsyserr(FERROR, errno, "open %s",
1082                                 full_fname(backupptr));
1083                         free(back_file);
1084                         close(fd);
1085                         return;
1086                 }
1087                 fnamecmp_type = FNAMECMP_BACKUP;
1088         }
1089
1090         if (verbose > 3) {
1091                 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1092                         safe_fname(fnamecmp), (double)st.st_size);
1093         }
1094
1095         if (verbose > 2)
1096                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1097
1098 notify_others:
1099         write_int(f_out, ndx);
1100         if (itemizing) {
1101                 int iflags = ITEM_TRANSFER;
1102                 if (always_checksum)
1103                         iflags |= ITEM_REPORT_CHECKSUM;
1104                 if (fnamecmp_type != FNAMECMP_FNAME)
1105                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1106                 if (fnamecmp_type == FNAMECMP_FUZZY)
1107                         iflags |= ITEM_XNAME_FOLLOWS;
1108                 itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type,
1109                         fuzzy_file ? fuzzy_file->basename : NULL);
1110         }
1111
1112         if (!do_xfers) {
1113                 if (preserve_hard_links && file->link_u.links)
1114                         hard_link_cluster(file, ndx, itemizing, code);
1115                 return;
1116         }
1117         if (read_batch)
1118                 return;
1119
1120         if (statret != 0 || whole_file) {
1121                 write_sum_head(f_out, NULL);
1122                 return;
1123         }
1124
1125         generate_and_send_sums(fd, st.st_size, f_out, f_copy);
1126
1127         if (f_copy >= 0) {
1128                 close(f_copy);
1129                 set_perms(backupptr, back_file, NULL, 0);
1130                 if (verbose > 1) {
1131                         rprintf(FINFO, "backed up %s to %s\n",
1132                                 safe_fname(fname), safe_fname(backupptr));
1133                 }
1134                 free(back_file);
1135         }
1136
1137         close(fd);
1138 }
1139
1140
1141 void generate_files(int f_out, struct file_list *flist, char *local_name)
1142 {
1143         int i;
1144         char fbuf[MAXPATHLEN];
1145         int itemizing, maybe_PERMS_REPORT;
1146         enum logcode code;
1147         int lull_mod = allowed_lull * 5;
1148         int need_retouch_dir_times = preserve_times && !omit_dir_times;
1149         int need_retouch_dir_perms = 0;
1150         int save_only_existing = only_existing;
1151         int save_opt_ignore_existing = opt_ignore_existing;
1152         int save_do_progress = do_progress;
1153         int save_make_backups = make_backups;
1154
1155         if (protocol_version >= 29) {
1156                 itemizing = 1;
1157                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1158                 code = daemon_log_format_has_i ? 0 : FLOG;
1159         } else if (am_daemon) {
1160                 itemizing = daemon_log_format_has_i && do_xfers;
1161                 maybe_PERMS_REPORT = PERMS_REPORT;
1162                 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1163         } else if (!am_server) {
1164                 itemizing = log_format_has_i;
1165                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1166                 code = itemizing ? 0 : FINFO;
1167         } else {
1168                 itemizing = 0;
1169                 maybe_PERMS_REPORT = PERMS_REPORT;
1170                 code = FINFO;
1171         }
1172
1173         if (verbose > 2) {
1174                 rprintf(FINFO, "generator starting pid=%ld count=%d\n",
1175                         (long)getpid(), flist->count);
1176         }
1177
1178         if (delete_before && !local_name && flist->count > 0)
1179                 do_delete_pass(flist);
1180         do_progress = 0;
1181
1182         if (whole_file < 0)
1183                 whole_file = 0;
1184         if (verbose >= 2) {
1185                 rprintf(FINFO, "delta-transmission %s\n",
1186                         whole_file
1187                         ? "disabled for local transfer or --whole-file"
1188                         : "enabled");
1189         }
1190
1191         /* Since we often fill up the outgoing socket and then just sit around
1192          * waiting for the other 2 processes to do their thing, we don't want
1193          * to exit on a timeout.  If the data stops flowing, the receiver will
1194          * notice that and let us know via the redo pipe (or its closing). */
1195         ignore_timeout = 1;
1196
1197         for (i = 0; i < flist->count; i++) {
1198                 struct file_struct *file = flist->files[i];
1199
1200                 if (!file->basename)
1201                         continue;
1202
1203                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1204                                file, i, itemizing, maybe_PERMS_REPORT, code,
1205                                f_out);
1206
1207                 /* We need to ensure that any dirs we create have writeable
1208                  * permissions during the time we are putting files within
1209                  * them.  This is then fixed after the transfer is done. */
1210                 if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)
1211                     && !list_only) {
1212                         int mode = file->mode | S_IWUSR; /* user write */
1213                         char *fname = local_name ? local_name : fbuf;
1214                         if (do_chmod(fname, mode & CHMOD_BITS) < 0) {
1215                                 rsyserr(FERROR, errno,
1216                                         "failed to modify permissions on %s",
1217                                         full_fname(fname));
1218                         }
1219                         need_retouch_dir_perms = 1;
1220                 }
1221
1222                 if (preserve_hard_links)
1223                         check_for_finished_hlinks(itemizing, code);
1224
1225                 if (allowed_lull && !(i % lull_mod))
1226                         maybe_send_keepalive();
1227                 else if (!(i % 200))
1228                         maybe_flush_socket();
1229         }
1230         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1231         if (delete_during)
1232                 delete_in_dir(NULL, NULL, NULL);
1233
1234         phase++;
1235         csum_length = SUM_LENGTH;
1236         only_existing = max_size = opt_ignore_existing = 0;
1237         update_only = always_checksum = size_only = 0;
1238         ignore_times = 1;
1239         make_backups = 0; /* avoid a duplicate backup for inplace processing */
1240
1241         if (verbose > 2)
1242                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1243
1244         write_int(f_out, -1);
1245
1246         /* files can cycle through the system more than once
1247          * to catch initial checksum errors */
1248         while ((i = get_redo_num(itemizing, code)) != -1) {
1249                 struct file_struct *file = flist->files[i];
1250                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1251                                file, i, itemizing, maybe_PERMS_REPORT, code,
1252                                f_out);
1253         }
1254
1255         phase++;
1256         only_existing = save_only_existing;
1257         opt_ignore_existing = save_opt_ignore_existing;
1258         make_backups = save_make_backups;
1259
1260         if (verbose > 2)
1261                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1262
1263         write_int(f_out, -1);
1264         /* Reduce round-trip lag-time for a useless delay-updates phase. */
1265         if (protocol_version >= 29 && !delay_updates)
1266                 write_int(f_out, -1);
1267
1268         /* Read MSG_DONE for the redo phase (and any prior messages). */
1269         get_redo_num(itemizing, code);
1270
1271         if (protocol_version >= 29) {
1272                 phase++;
1273                 if (verbose > 2)
1274                         rprintf(FINFO, "generate_files phase=%d\n", phase);
1275                 if (delay_updates)
1276                         write_int(f_out, -1);
1277                 /* Read MSG_DONE for delay-updates phase & prior messages. */
1278                 get_redo_num(itemizing, code);
1279         }
1280
1281         do_progress = save_do_progress;
1282         if (delete_after && !local_name && flist->count > 0)
1283                 do_delete_pass(flist);
1284
1285         if ((need_retouch_dir_perms || need_retouch_dir_times)
1286             && !list_only && !local_name && !dry_run) {
1287                 int j = 0;
1288                 /* Now we need to fix any directory permissions that were
1289                  * modified during the transfer and/or re-set any tweaked
1290                  * modified-time values. */
1291                 for (i = 0; i < flist->count; i++) {
1292                         struct file_struct *file = flist->files[i];
1293                         if (!file->basename || !S_ISDIR(file->mode))
1294                                 continue;
1295                         if (!need_retouch_dir_times && file->mode & S_IWUSR)
1296                                 continue;
1297                         recv_generator(f_name(file), file, i, itemizing,
1298                                        maybe_PERMS_REPORT, code, -1);
1299                         if (allowed_lull && !(++j % lull_mod))
1300                                 maybe_send_keepalive();
1301                         else if (!(j % 200))
1302                                 maybe_flush_socket();
1303                 }
1304         }
1305         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1306
1307         if (max_delete > 0 && deletion_count > max_delete) {
1308                 rprintf(FINFO,
1309                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
1310                         deletion_count - max_delete);
1311                 io_error |= IOERR_DEL_LIMIT;
1312         }
1313
1314         if (verbose > 2)
1315                 rprintf(FINFO,"generate_files finished\n");
1316 }