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_timeout;
  63 extern int io_error;
  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 int allowed_lull = 0;
  93
  94 static int deletion_count = 0; /* used to implement --max-delete */
  95
  96
  97 static int is_backup_file(char *fn)
  98 {
  99         int k = strlen(fn) - backup_suffix_len;
 100         return k > 0 && strcmp(fn+k, backup_suffix) == 0;
 101 }
 102
 103
 104 /* Delete a file or directory.  If DEL_FORCE_RECURSE is set in the flags, or if
 105  * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE
 106  * is not set in the flags. */
 107 static int delete_item(char *fname, int mode, int flags)
 108 {
 109         struct file_list *dirlist;
 110         char buf[MAXPATHLEN];
 111         int j, dlen, zap_dir, ok;
 112         void *save_filters;
 113
 114         if (!S_ISDIR(mode)) {
 115                 if (max_delete && ++deletion_count > max_delete)
 116                         return 0;
 117                 if (make_backups && (backup_dir || !is_backup_file(fname)))
 118                         ok = make_backup(fname);
 119                 else
 120                         ok = robust_unlink(fname) == 0;
 121                 if (ok) {
 122                         if (!(flags & DEL_TERSE))
 123                                 log_delete(fname, mode);
 124                         return 0;
 125                 }
 126                 if (errno == ENOENT) {
 127                         deletion_count--;
 128                         return 0;
 129                 }
 130                 rsyserr(FERROR, errno, "delete_file: unlink %s failed",
 131                         full_fname(fname));
 132                 return -1;
 133         }
 134
 135         zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse))
 136                 && !(flags & DEL_NO_RECURSE);
 137         if ((max_delete && ++deletion_count > max_delete)
 138             || (dry_run && zap_dir)) {
 139                 ok = 0;
 140                 errno = ENOTEMPTY;
 141         } else if (make_backups && !backup_dir && !is_backup_file(fname)
 142             && !(flags & DEL_FORCE_RECURSE))
 143                 ok = make_backup(fname);
 144         else
 145                 ok = do_rmdir(fname) == 0;
 146         if (ok) {
 147                 if (!(flags & DEL_TERSE))
 148                         log_delete(fname, mode);
 149                 return 0;
 150         }
 151         if (errno == ENOENT) {
 152                 deletion_count--;
 153                 return 0;
 154         }
 155         if (!zap_dir || (errno != ENOTEMPTY && errno != EEXIST)) {
 156                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 157                         full_fname(fname));
 158                 return -1;
 159         }
 160         flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */
 161         deletion_count--;
 162
 163         dlen = strlcpy(buf, fname, MAXPATHLEN);
 164         save_filters = push_local_filters(buf, dlen);
 165
 166         dirlist = get_dirlist(buf, dlen, 0);
 167         for (j = dirlist->count; j--; ) {
 168                 struct file_struct *fp = dirlist->files[j];
 169
 170                 if (fp->flags & FLAG_MOUNT_POINT)
 171                         continue;
 172
 173                 f_name_to(fp, buf);
 174                 if (delete_item(buf, fp->mode, flags & ~DEL_TERSE) != 0) {
 175                         flist_free(dirlist);
 176                         return -1;
 177                 }
 178         }
 179         flist_free(dirlist);
 180
 181         pop_local_filters(save_filters);
 182
 183         if (max_delete && ++deletion_count > max_delete)
 184                 return 0;
 185
 186         if (do_rmdir(fname) == 0) {
 187                 if (!(flags & DEL_TERSE))
 188                         log_delete(fname, mode);
 189         } else if (errno != ENOTEMPTY && errno != ENOENT) {
 190                 rsyserr(FERROR, errno, "delete_file: rmdir %s failed",
 191                         full_fname(fname));
 192                 return -1;
 193         }
 194
 195         return 0;
 196 }
 197
 198
 199 /* This function is used to implement per-directory deletion, and is used by
 200  * all the --delete-WHEN options.  Note that the fbuf pointer must point to a
 201  * MAXPATHLEN buffer with the name of the directory in it (the functions we
 202  * call will append names onto the end, but the old dir value will be restored
 203  * on exit). */
 204 static void delete_in_dir(struct file_list *flist, char *fbuf,
 205                           struct file_struct *file)
 206 {
 207         static int min_depth = MAXPATHLEN, cur_depth = -1;
 208         static void *filt_array[MAXPATHLEN/2+1];
 209         static int already_warned = 0;
 210         struct file_list *dirlist;
 211         char delbuf[MAXPATHLEN];
 212         STRUCT_STAT st;
 213         int dlen, i;
 214
 215         if (!flist) {
 216                 while (cur_depth >= min_depth)
 217                         pop_local_filters(filt_array[cur_depth--]);
 218                 min_depth = MAXPATHLEN;
 219                 cur_depth = -1;
 220                 return;
 221         }
 222
 223         if (verbose > 2)
 224                 rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf));
 225
 226         if (allowed_lull)
 227                 maybe_send_keepalive();
 228
 229         if (file->dir.depth >= MAXPATHLEN/2+1)
 230                 return; /* Impossible... */
 231
 232         if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) {
 233                 if (already_warned)
 234                         return;
 235                 rprintf(FINFO,
 236                         "IO error encountered -- skipping file deletion\n");
 237                 already_warned = 1;
 238                 return;
 239         }
 240
 241         while (cur_depth >= file->dir.depth && cur_depth >= min_depth)
 242                 pop_local_filters(filt_array[cur_depth--]);
 243         cur_depth = file->dir.depth;
 244         if (min_depth > cur_depth)
 245                 min_depth = cur_depth;
 246         dlen = strlen(fbuf);
 247         filt_array[cur_depth] = push_local_filters(fbuf, dlen);
 248
 249         if (link_stat(fbuf, &st, keep_dirlinks) < 0)
 250                 return;
 251
 252         if (one_file_system) {
 253                 if (file->flags & FLAG_TOP_DIR)
 254                         filesystem_dev = st.st_dev;
 255                 else if (filesystem_dev != st.st_dev)
 256                         return;
 257         }
 258
 259         dirlist = get_dirlist(fbuf, dlen, 0);
 260
 261         /* If an item in dirlist is not found in flist, delete it
 262          * from the filesystem. */
 263         for (i = dirlist->count; i--; ) {
 264                 struct file_struct *fp = dirlist->files[i];
 265                 if (!fp->basename)
 266                         continue;
 267                 if (flist_find(flist, fp) < 0) {
 268                         int mode = fp->mode;
 269                         f_name_to(fp, delbuf);
 270                         if (delete_item(delbuf, mode, DEL_FORCE_RECURSE) < 0)
 271                                 break;
 272                 }
 273         }
 274
 275         flist_free(dirlist);
 276 }
 277
 278 /* This deletes any files on the receiving side that are not present on the
 279  * sending side.  This is used by --delete-before and --delete-after. */
 280 static void do_delete_pass(struct file_list *flist)
 281 {
 282         char fbuf[MAXPATHLEN];
 283         int j;
 284
 285         if (dry_run > 1) /* destination doesn't exist yet */
 286                 return;
 287
 288         for (j = 0; j < flist->count; j++) {
 289                 struct file_struct *file = flist->files[j];
 290
 291                 if (!(file->flags & FLAG_DEL_HERE))
 292                         continue;
 293
 294                 f_name_to(file, fbuf);
 295                 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
 296                         rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf));
 297
 298                 delete_in_dir(flist, fbuf, file);
 299         }
 300         if (do_progress && !am_server)
 301                 rprintf(FINFO, "                    \r");
 302 }
 303
 304 static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
 305 {
 306         if (preserve_perms
 307          && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
 308                 return 0;
 309
 310         if (am_root && preserve_uid && st->st_uid != file->uid)
 311                 return 0;
 312
 313         if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
 314                 return 0;
 315
 316         return 1;
 317 }
 318
 319
 320 void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st,
 321              int32 iflags, uchar fnamecmp_type, char *xname)
 322 {
 323         if (statret == 0) {
 324                 if (S_ISREG(file->mode) && file->length != st->st_size)
 325                         iflags |= ITEM_REPORT_SIZE;
 326                 if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) {
 327                         int keep_time = !preserve_times ? 0
 328                             : S_ISDIR(file->mode) ? !omit_dir_times
 329                             : !S_ISLNK(file->mode);
 330
 331                         if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time)
 332                             || (keep_time && file->modtime != st->st_mtime))
 333                                 iflags |= ITEM_REPORT_TIME;
 334                         if (preserve_perms && file->mode != st->st_mode)
 335                                 iflags |= ITEM_REPORT_PERMS;
 336                         if (preserve_uid && am_root && file->uid != st->st_uid)
 337                                 iflags |= ITEM_REPORT_OWNER;
 338                         if (preserve_gid && file->gid != GID_NONE
 339                             && st->st_gid != file->gid)
 340                                 iflags |= ITEM_REPORT_GROUP;
 341                 }
 342         } else
 343                 iflags |= ITEM_IS_NEW;
 344
 345         iflags &= 0xffff;
 346         if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1
 347           || (xname && *xname)) && !read_batch) {
 348                 if (protocol_version >= 29) {
 349                         if (ndx >= 0)
 350                                 write_int(sock_f_out, ndx);
 351                         write_shortint(sock_f_out, iflags);
 352                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 353                                 write_byte(sock_f_out, fnamecmp_type);
 354                         if (iflags & ITEM_XNAME_FOLLOWS)
 355                                 write_vstring(sock_f_out, xname, strlen(xname));
 356                 } else if (ndx >= 0)
 357                         log_item(file, &stats, iflags, xname);
 358         }
 359 }
 360
 361
 362 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 363 static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 364 {
 365         if (st->st_size != file->length)
 366                 return 0;
 367
 368         /* if always checksum is set then we use the checksum instead
 369            of the file time to determine whether to sync */
 370         if (always_checksum && S_ISREG(st->st_mode)) {
 371                 char sum[MD4_SUM_LENGTH];
 372                 file_checksum(fn, sum, st->st_size);
 373                 return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
 374                                                         : MD4_SUM_LENGTH) == 0;
 375         }
 376
 377         if (size_only)
 378                 return 1;
 379
 380         if (ignore_times)
 381                 return 0;
 382
 383         return cmp_modtime(st->st_mtime, file->modtime) == 0;
 384 }
 385
 386
 387 /*
 388  * set (initialize) the size entries in the per-file sum_struct
 389  * calculating dynamic block and checksum sizes.
 390  *
 391  * This is only called from generate_and_send_sums() but is a separate
 392  * function to encapsulate the logic.
 393  *
 394  * The block size is a rounded square root of file length.
 395  *
 396  * The checksum size is determined according to:
 397  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 398  * provided by Donovan Baarda which gives a probability of rsync
 399  * algorithm corrupting data and falling back using the whole md4
 400  * checksums.
 401  *
 402  * This might be made one of several selectable heuristics.
 403  */
 404 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 405 {
 406         int32 blength;
 407         int s2length;
 408
 409         if (block_size)
 410                 blength = block_size;
 411         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 412                 blength = BLOCK_SIZE;
 413         else {
 414                 int32 c;
 415                 int64 l;
 416                 int cnt;
 417                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 418                 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
 419                         blength = MAX_BLOCK_SIZE;
 420                 else {
 421                     blength = 0;
 422                     do {
 423                             blength |= c;
 424                             if (len < (int64)blength * blength)
 425                                     blength &= ~c;
 426                             c >>= 1;
 427                     } while (c >= 8);   /* round to multiple of 8 */
 428                     blength = MAX(blength, BLOCK_SIZE);
 429                 }
 430         }
 431
 432         if (protocol_version < 27) {
 433                 s2length = csum_length;
 434         } else if (csum_length == SUM_LENGTH) {
 435                 s2length = SUM_LENGTH;
 436         } else {
 437                 int32 c;
 438                 int64 l;
 439                 int b = BLOCKSUM_BIAS;
 440                 for (l = len; l >>= 1; b += 2) {}
 441                 for (c = blength; c >>= 1 && b; b--) {}
 442                 /* add a bit, subtract rollsum, round up. */
 443                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 444                 s2length = MAX(s2length, csum_length);
 445                 s2length = MIN(s2length, SUM_LENGTH);
 446         }
 447
 448         sum->flength    = len;
 449         sum->blength    = blength;
 450         sum->s2length   = s2length;
 451         sum->count      = (len + (blength - 1)) / blength;
 452         sum->remainder  = (len % blength);
 453
 454         if (sum->count && verbose > 2) {
 455                 rprintf(FINFO,
 456                         "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
 457                         (double)sum->count, (long)sum->remainder, (long)sum->blength,
 458                         sum->s2length, (double)sum->flength);
 459         }
 460 }
 461
 462
 463 /*
 464  * Generate and send a stream of signatures/checksums that describe a buffer
 465  *
 466  * Generate approximately one checksum every block_len bytes.
 467  */
 468 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 469 {
 470         int32 i;
 471         struct map_struct *mapbuf;
 472         struct sum_struct sum;
 473         OFF_T offset = 0;
 474
 475         sum_sizes_sqroot(&sum, len);
 476
 477         if (len > 0)
 478                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 479         else
 480                 mapbuf = NULL;
 481
 482         write_sum_head(f_out, &sum);
 483
 484         for (i = 0; i < sum.count; i++) {
 485                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 486                 char *map = map_ptr(mapbuf, offset, n1);
 487                 uint32 sum1 = get_checksum1(map, n1);
 488                 char sum2[SUM_LENGTH];
 489
 490                 if (f_copy >= 0)
 491                         full_write(f_copy, map, n1);
 492
 493                 get_checksum2(map, n1, sum2);
 494
 495                 if (verbose > 3) {
 496                         rprintf(FINFO,
 497                                 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
 498                                 (double)i, (double)offset, (long)n1,
 499                                 (unsigned long)sum1);
 500                 }
 501                 write_int(f_out, sum1);
 502                 write_buf(f_out, sum2, sum.s2length);
 503                 len -= n1;
 504                 offset += n1;
 505         }
 506
 507         if (mapbuf)
 508                 unmap_file(mapbuf);
 509 }
 510
 511
 512 /* Try to find a filename in the same dir as "fname" with a similar name. */
 513 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
 514 {
 515         int fname_len, fname_suf_len;
 516         const char *fname_suf, *fname = file->basename;
 517         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 518         int j, lowest_j = -1;
 519
 520         fname_len = strlen(fname);
 521         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 522
 523         for (j = 0; j < dirlist->count; j++) {
 524                 struct file_struct *fp = dirlist->files[j];
 525                 const char *suf, *name;
 526                 int len, suf_len;
 527                 uint32 dist;
 528
 529                 if (!S_ISREG(fp->mode) || !fp->length
 530                     || fp->flags & FLAG_NO_FUZZY)
 531                         continue;
 532
 533                 name = fp->basename;
 534
 535                 if (fp->length == file->length
 536                     && fp->modtime == file->modtime) {
 537                         if (verbose > 4) {
 538                                 rprintf(FINFO,
 539                                         "fuzzy size/modtime match for %s\n",
 540                                         name);
 541                         }
 542                         return j;
 543                 }
 544
 545                 len = strlen(name);
 546                 suf = find_filename_suffix(name, len, &suf_len);
 547
 548                 dist = fuzzy_distance(name, len, fname, fname_len);
 549                 /* Add some extra weight to how well the suffixes match. */
 550                 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
 551                       * 10;
 552                 if (verbose > 4) {
 553                         rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 554                                 name, (int)(dist>>16), (int)(dist&0xFFFF));
 555                 }
 556                 if (dist <= lowest_dist) {
 557                         lowest_dist = dist;
 558                         lowest_j = j;
 559                 }
 560         }
 561
 562         return lowest_j;
 563 }
 564
 565 void check_for_finished_hlinks(int itemizing, enum logcode code)
 566 {
 567         struct file_struct *file;
 568         int ndx;
 569
 570         while ((ndx = get_hlink_num()) != -1) {
 571                 if (ndx < 0 || ndx >= the_file_list->count)
 572                         continue;
 573
 574                 file = the_file_list->files[ndx];
 575                 if (!file->link_u.links)
 576                         continue;
 577
 578                 hard_link_cluster(file, ndx, itemizing, code);
 579         }
 580 }
 581
 582 static int phase = 0;
 583
 584 /* Acts on the_file_list->file's ndx'th item, whose name is fname.  If a dir,
 585  * make sure it exists, and has the right permissions/timestamp info.  For
 586  * all other non-regular files (symlinks, etc.) we create them here.  For
 587  * regular files that have changed, we try to find a basis file and then
 588  * start sending checksums.
 589  *
 590  * Note that f_out is set to -1 when doing final directory-permission and
 591  * modification-time repair. */
 592 static void recv_generator(char *fname, struct file_struct *file, int ndx,
 593                            int itemizing, int maybe_PERMS_REPORT,
 594                            enum logcode code, int f_out)
 595 {
 596         static int missing_below = -1, excluded_below = -1;
 597         static char *fuzzy_dirname = "";
 598         static struct file_list *fuzzy_dirlist = NULL;
 599         struct file_struct *fuzzy_file = NULL;
 600         int fd = -1, f_copy = -1;
 601         STRUCT_STAT st, real_st, partial_st;
 602         struct file_struct *back_file = NULL;
 603         int statret, real_ret, stat_errno;
 604         char *fnamecmp, *partialptr, *backupptr = NULL;
 605         char fnamecmpbuf[MAXPATHLEN];
 606         uchar fnamecmp_type;
 607
 608         if (list_only)
 609                 return;
 610
 611         if (!fname) {
 612                 if (fuzzy_dirlist) {
 613                         flist_free(fuzzy_dirlist);
 614                         fuzzy_dirlist = NULL;
 615                         fuzzy_dirname = "";
 616                 }
 617                 if (missing_below >= 0) {
 618                         dry_run--;
 619                         missing_below = -1;
 620                 }
 621                 return;
 622         }
 623
 624         if (verbose > 2) {
 625                 rprintf(FINFO, "recv_generator(%s,%d)\n",
 626                         safe_fname(fname), ndx);
 627         }
 628
 629         if (server_filter_list.head) {
 630                 if (excluded_below >= 0) {
 631                         if (file->dir.depth > excluded_below)
 632                                 goto skipping;
 633                         excluded_below = -1;
 634                 }
 635                 if (check_filter(&server_filter_list, fname,
 636                                  S_ISDIR(file->mode)) < 0) {
 637                         if (S_ISDIR(file->mode))
 638                                 excluded_below = file->dir.depth;
 639                     skipping:
 640                         if (verbose) {
 641                                 rprintf(FINFO,
 642                                         "skipping server-excluded file \"%s\"\n",
 643                                         safe_fname(fname));
 644                         }
 645                         return;
 646                 }
 647         }
 648
 649         if (missing_below >= 0 && file->dir.depth <= missing_below) {
 650                 dry_run--;
 651                 missing_below = -1;
 652         }
 653         if (dry_run > 1) {
 654                 statret = -1;
 655                 stat_errno = ENOENT;
 656         } else {
 657                 if (fuzzy_basis && S_ISREG(file->mode)) {
 658                         char *dn = file->dirname ? file->dirname : ".";
 659                         if (fuzzy_dirname != dn
 660                             && strcmp(fuzzy_dirname, dn) != 0) {
 661                                 if (fuzzy_dirlist)
 662                                         flist_free(fuzzy_dirlist);
 663                                 fuzzy_dirlist = get_dirlist(dn, -1, 1);
 664                         }
 665                         fuzzy_dirname = dn;
 666                 }
 667
 668                 statret = link_stat(fname, &st,
 669                                     keep_dirlinks && S_ISDIR(file->mode));
 670                 stat_errno = errno;
 671         }
 672
 673         if (only_existing && statret == -1 && stat_errno == ENOENT) {
 674                 /* we only want to update existing files */
 675                 if (verbose > 1) {
 676                         rprintf(FINFO, "not creating new %s \"%s\"\n",
 677                                 S_ISDIR(file->mode) ? "directory" : "file",
 678                                 safe_fname(fname));
 679                 }
 680                 return;
 681         }
 682
 683         if (statret == 0 && !preserve_perms
 684             && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
 685                 /* if the file exists already and we aren't perserving
 686                  * permissions then act as though the remote end sent
 687                  * us the file permissions we already have */
 688                 file->mode = (file->mode & ~CHMOD_BITS)
 689                            | (st.st_mode & CHMOD_BITS);
 690         }
 691
 692         if (S_ISDIR(file->mode)) {
 693                 /* The file to be received is a directory, so we need
 694                  * to prepare appropriately.  If there is already a
 695                  * file of that name and it is *not* a directory, then
 696                  * we need to delete it.  If it doesn't exist, then
 697                  * (perhaps recursively) create it. */
 698                 if (statret == 0 && !S_ISDIR(st.st_mode)) {
 699                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 700                                 return;
 701                         statret = -1;
 702                 }
 703                 if (dry_run && statret != 0 && missing_below < 0) {
 704                         missing_below = file->dir.depth;
 705                         dry_run++;
 706                 }
 707                 if (itemizing && f_out != -1) {
 708                         itemize(file, ndx, statret, &st,
 709                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
 710                 }
 711                 if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
 712                         if (!relative_paths || errno != ENOENT
 713                             || create_directory_path(fname, orig_umask) < 0
 714                             || do_mkdir(fname, file->mode) < 0) {
 715                                 rsyserr(FERROR, errno,
 716                                         "recv_generator: mkdir %s failed",
 717                                         full_fname(fname));
 718                         }
 719                 }
 720                 if (set_perms(fname, file, statret ? NULL : &st, 0)
 721                     && verbose && code && f_out != -1)
 722                         rprintf(code, "%s/\n", safe_fname(fname));
 723                 if (delete_during && f_out != -1 && !phase && dry_run < 2
 724                     && (file->flags & FLAG_DEL_HERE))
 725                         delete_in_dir(the_file_list, fname, file);
 726                 return;
 727         }
 728
 729         if (preserve_links && S_ISLNK(file->mode)) {
 730 #ifdef SUPPORT_LINKS
 731                 if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
 732                         if (verbose) {
 733                                 if (the_file_list->count == 1)
 734                                         fname = f_name(file);
 735                                 rprintf(FINFO,
 736                                         "ignoring unsafe symlink %s -> \"%s\"\n",
 737                                         full_fname(fname),
 738                                         safe_fname(file->u.link));
 739                         }
 740                         return;
 741                 }
 742                 if (statret == 0) {
 743                         char lnk[MAXPATHLEN];
 744                         int len;
 745
 746                         if (!S_ISDIR(st.st_mode)
 747                             && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) {
 748                                 lnk[len] = 0;
 749                                 /* A link already pointing to the
 750                                  * right place -- no further action
 751                                  * required. */
 752                                 if (strcmp(lnk, file->u.link) == 0) {
 753                                         if (itemizing) {
 754                                                 itemize(file, ndx, 0, &st, 0,
 755                                                         0, NULL);
 756                                         }
 757                                         set_perms(fname, file, &st,
 758                                                   maybe_PERMS_REPORT);
 759                                         return;
 760                                 }
 761                         }
 762                         /* Not the right symlink (or not a symlink), so
 763                          * delete it. */
 764                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 765                                 return;
 766                         if (!S_ISLNK(st.st_mode))
 767                                 statret = -1;
 768                 }
 769                 if (do_symlink(file->u.link,fname) != 0) {
 770                         rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
 771                                 full_fname(fname), safe_fname(file->u.link));
 772                 } else {
 773                         set_perms(fname,file,NULL,0);
 774                         if (itemizing) {
 775                                 itemize(file, ndx, statret, &st,
 776                                         ITEM_LOCAL_CHANGE, 0, NULL);
 777                         }
 778                         if (code && verbose) {
 779                                 rprintf(code, "%s -> %s\n", safe_fname(fname),
 780                                         safe_fname(file->u.link));
 781                         }
 782                         if (remove_sent_files && !dry_run) {
 783                                 char numbuf[4];
 784                                 SIVAL(numbuf, 0, ndx);
 785                                 send_msg(MSG_SUCCESS, numbuf, 4);
 786                         }
 787                 }
 788 #endif
 789                 return;
 790         }
 791
 792         if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
 793                 if (statret != 0 ||
 794                     st.st_mode != file->mode ||
 795                     st.st_rdev != file->u.rdev) {
 796                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 797                                 return;
 798                         if (!IS_DEVICE(st.st_mode))
 799                                 statret = -1;
 800                         if (verbose > 2) {
 801                                 rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
 802                                         safe_fname(fname),
 803                                         (int)file->mode, (int)file->u.rdev);
 804                         }
 805                         if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
 806                                 rsyserr(FERROR, errno, "mknod %s failed",
 807                                         full_fname(fname));
 808                         } else {
 809                                 set_perms(fname,file,NULL,0);
 810                                 if (itemizing) {
 811                                         itemize(file, ndx, statret, &st,
 812                                                 ITEM_LOCAL_CHANGE, 0, NULL);
 813                                 }
 814                                 if (code && verbose) {
 815                                         rprintf(code, "%s\n",
 816                                                 safe_fname(fname));
 817                                 }
 818                         }
 819                 } else {
 820                         if (itemizing)
 821                                 itemize(file, ndx, statret, &st, 0, 0, NULL);
 822                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
 823                 }
 824                 return;
 825         }
 826
 827         if (preserve_hard_links
 828             && hard_link_check(file, ndx, fname, statret, &st,
 829                                itemizing, code, HL_CHECK_MASTER))
 830                 return;
 831
 832         if (!S_ISREG(file->mode)) {
 833                 if (the_file_list->count == 1)
 834                         fname = f_name(file);
 835                 rprintf(FINFO, "skipping non-regular file \"%s\"\n",
 836                         safe_fname(fname));
 837                 return;
 838         }
 839
 840         if (max_size && file->length > max_size) {
 841                 if (verbose > 1) {
 842                         if (the_file_list->count == 1)
 843                                 fname = f_name(file);
 844                         rprintf(FINFO, "%s is over max-size\n",
 845                                 safe_fname(fname));
 846                 }
 847                 return;
 848         }
 849
 850         if (opt_ignore_existing && statret == 0) {
 851                 if (verbose > 1)
 852                         rprintf(FINFO, "%s exists\n", safe_fname(fname));
 853                 return;
 854         }
 855
 856         if (update_only && statret == 0
 857             && cmp_modtime(st.st_mtime, file->modtime) > 0) {
 858                 if (verbose > 1)
 859                         rprintf(FINFO, "%s is newer\n", safe_fname(fname));
 860                 return;
 861         }
 862
 863         fnamecmp = fname;
 864         fnamecmp_type = FNAMECMP_FNAME;
 865
 866         if (statret == 0 && !S_ISREG(st.st_mode)) {
 867                 if (delete_item(fname, st.st_mode, DEL_TERSE) != 0)
 868                         return;
 869                 statret = -1;
 870                 stat_errno = ENOENT;
 871         }
 872
 873         if (statret != 0 && basis_dir[0] != NULL) {
 874                 int best_match = -1;
 875                 int match_level = 0;
 876                 int i = 0;
 877                 do {
 878                         pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 879                                  basis_dir[i], fname);
 880                         if (link_stat(fnamecmpbuf, &st, 0) < 0
 881                             || !S_ISREG(st.st_mode))
 882                                 continue;
 883                         switch (match_level) {
 884                         case 0:
 885                                 best_match = i;
 886                                 match_level = 1;
 887                                 /* FALL THROUGH */
 888                         case 1:
 889                                 if (!unchanged_file(fnamecmpbuf, file, &st))
 890                                         continue;
 891                                 best_match = i;
 892                                 match_level = 2;
 893                                 if (copy_dest)
 894                                         break;
 895                                 /* FALL THROUGH */
 896                         case 2:
 897                                 if (!unchanged_attrs(file, &st))
 898                                         continue;
 899                                 best_match = i;
 900                                 match_level = 3;
 901                                 break;
 902                         }
 903                         break;
 904                 } while (basis_dir[++i] != NULL);
 905                 if (match_level) {
 906                         statret = 0;
 907                         if (i != best_match) {
 908                                 i = best_match;
 909                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 910                                          basis_dir[i], fname);
 911                                 if (link_stat(fnamecmpbuf, &st, 0) < 0) {
 912                                         match_level = 0;
 913                                         statret = -1;
 914                                         stat_errno = errno;
 915                                 }
 916                         }
 917 #ifdef HAVE_LINK
 918                         if (link_dest && match_level == 3) {
 919                                 if (hard_link_one(file, ndx, fname, -1, &st,
 920                                                   fnamecmpbuf, 1,
 921                                                   itemizing && verbose > 1,
 922                                                   code) == 0) {
 923                                         if (preserve_hard_links
 924                                             && file->link_u.links) {
 925                                                 hard_link_cluster(file, ndx,
 926                                                                   itemizing,
 927                                                                   code);
 928                                         }
 929                                         return;
 930                                 }
 931                                 match_level = 2;
 932                         }
 933 #endif
 934                         if (match_level == 2) {
 935                                 /* Copy the file locally. */
 936                                 if (copy_file(fnamecmpbuf, fname, file->mode) < 0) {
 937                                         if (verbose) {
 938                                                 rsyserr(FINFO, errno,
 939                                                         "copy_file %s => %s",
 940                                                         full_fname(fnamecmpbuf),
 941                                                         safe_fname(fname));
 942                                         }
 943                                         match_level = 0;
 944                                         statret = -1;
 945                                 } else {
 946                                         if (itemizing) {
 947                                                 itemize(file, ndx, 0, &st,
 948                                                         ITEM_LOCAL_CHANGE, 0,
 949                                                         NULL);
 950                                         } else if (verbose && code) {
 951                                                 rprintf(code, "%s\n",
 952                                                         safe_fname(fname));
 953                                         }
 954                                         set_perms(fname, file, NULL,
 955                                                   maybe_PERMS_REPORT);
 956                                         if (preserve_hard_links
 957                                             && file->link_u.links) {
 958                                                 hard_link_cluster(file, ndx,
 959                                                                   itemizing,
 960                                                                   code);
 961                                         }
 962                                         return;
 963                                 }
 964                         } else if (compare_dest || match_level == 1) {
 965                                 fnamecmp = fnamecmpbuf;
 966                                 fnamecmp_type = i;
 967                         }
 968                 }
 969         }
 970
 971         real_ret = statret;
 972         real_st = st;
 973
 974         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
 975             && link_stat(partialptr, &partial_st, 0) == 0
 976             && S_ISREG(partial_st.st_mode)) {
 977                 if (statret != 0)
 978                         goto prepare_to_open;
 979         } else
 980                 partialptr = NULL;
 981
 982         if (statret != 0 && fuzzy_basis && dry_run <= 1) {
 983                 int j = find_fuzzy(file, fuzzy_dirlist);
 984                 if (j >= 0) {
 985                         fuzzy_file = fuzzy_dirlist->files[j];
 986                         f_name_to(fuzzy_file, fnamecmpbuf);
 987                         if (verbose > 2) {
 988                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
 989                                         safe_fname(fname), safe_fname(fnamecmpbuf));
 990                         }
 991                         st.st_size = fuzzy_file->length;
 992                         statret = 0;
 993                         fnamecmp = fnamecmpbuf;
 994                         fnamecmp_type = FNAMECMP_FUZZY;
 995                 }
 996         }
 997
 998         if (statret != 0) {
 999                 if (preserve_hard_links
1000                     && hard_link_check(file, ndx, fname, statret, &st,
1001                                        itemizing, code, HL_SKIP))
1002                         return;
1003                 if (stat_errno == ENOENT)
1004                         goto notify_others;
1005                 if (verbose > 1) {
1006                         rsyserr(FERROR, stat_errno,
1007                                 "recv_generator: failed to stat %s",
1008                                 full_fname(fname));
1009                 }
1010                 return;
1011         }
1012
1013         if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1014                 ;
1015         else if (fnamecmp_type == FNAMECMP_FUZZY)
1016                 ;
1017         else if (unchanged_file(fnamecmp, file, &st)) {
1018                 if (fnamecmp_type == FNAMECMP_FNAME) {
1019                         if (itemizing) {
1020                                 itemize(file, ndx, real_ret, &real_st,
1021                                         0, 0, NULL);
1022                         }
1023                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
1024                         if (preserve_hard_links && file->link_u.links)
1025                                 hard_link_cluster(file, ndx, itemizing, code);
1026                         return;
1027                 }
1028                 /* Only --compare-dest gets here. */
1029                 itemize(file, ndx, real_ret, &real_st,
1030                         ITEM_NO_DEST_AND_NO_UPDATE, 0, NULL);
1031                 return;
1032         }
1033
1034 prepare_to_open:
1035         if (partialptr) {
1036                 st = partial_st;
1037                 fnamecmp = partialptr;
1038                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1039                 statret = 0;
1040         }
1041
1042         if (!do_xfers || read_batch || whole_file)
1043                 goto notify_others;
1044
1045         if (fuzzy_basis) {
1046                 int j = flist_find(fuzzy_dirlist, file);
1047                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1048                         fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY;
1049         }
1050
1051         /* open the file */
1052         fd = do_open(fnamecmp, O_RDONLY, 0);
1053
1054         if (fd == -1) {
1055                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1056                         full_fname(fnamecmp));
1057             pretend_missing:
1058                 /* pretend the file didn't exist */
1059                 if (preserve_hard_links
1060                     && hard_link_check(file, ndx, fname, statret, &st,
1061                                        itemizing, code, HL_SKIP))
1062                         return;
1063                 statret = real_ret = -1;
1064                 goto notify_others;
1065         }
1066
1067         if (inplace && make_backups && fnamecmp_type == FNAMECMP_FNAME) {
1068                 if (!(backupptr = get_backup_name(fname))) {
1069                         close(fd);
1070                         return;
1071                 }
1072                 if (!(back_file = make_file(fname, NULL, NO_FILTERS))) {
1073                         close(fd);
1074                         goto pretend_missing;
1075                 }
1076                 if (robust_unlink(backupptr) && errno != ENOENT) {
1077                         rsyserr(FERROR, errno, "unlink %s",
1078                                 full_fname(backupptr));
1079                         free(back_file);
1080                         close(fd);
1081                         return;
1082                 }
1083                 if ((f_copy = do_open(backupptr,
1084                     O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1085                         rsyserr(FERROR, errno, "open %s",
1086                                 full_fname(backupptr));
1087                         free(back_file);
1088                         close(fd);
1089                         return;
1090                 }
1091                 fnamecmp_type = FNAMECMP_BACKUP;
1092         }
1093
1094         if (verbose > 3) {
1095                 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1096                         safe_fname(fnamecmp), (double)st.st_size);
1097         }
1098
1099         if (verbose > 2)
1100                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1101
1102 notify_others:
1103         write_int(f_out, ndx);
1104         if (itemizing) {
1105                 int iflags = ITEM_TRANSFER;
1106                 if (always_checksum)
1107                         iflags |= ITEM_REPORT_CHECKSUM;
1108                 if (fnamecmp_type != FNAMECMP_FNAME)
1109                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1110                 if (fnamecmp_type == FNAMECMP_FUZZY)
1111                         iflags |= ITEM_XNAME_FOLLOWS;
1112                 itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type,
1113                         fuzzy_file ? fuzzy_file->basename : NULL);
1114         }
1115
1116         if (!do_xfers) {
1117                 if (preserve_hard_links && file->link_u.links)
1118                         hard_link_cluster(file, ndx, itemizing, code);
1119                 return;
1120         }
1121         if (read_batch)
1122                 return;
1123
1124         if (statret != 0 || whole_file) {
1125                 write_sum_head(f_out, NULL);
1126                 return;
1127         }
1128
1129         generate_and_send_sums(fd, st.st_size, f_out, f_copy);
1130
1131         if (f_copy >= 0) {
1132                 close(f_copy);
1133                 set_perms(backupptr, back_file, NULL, 0);
1134                 if (verbose > 1) {
1135                         rprintf(FINFO, "backed up %s to %s\n",
1136                                 safe_fname(fname), safe_fname(backupptr));
1137                 }
1138                 free(back_file);
1139         }
1140
1141         close(fd);
1142 }
1143
1144
1145 void generate_files(int f_out, struct file_list *flist, char *local_name)
1146 {
1147         int i, lull_mod;
1148         char fbuf[MAXPATHLEN];
1149         int itemizing, maybe_PERMS_REPORT;
1150         enum logcode code;
1151         int need_retouch_dir_times = preserve_times && !omit_dir_times;
1152         int need_retouch_dir_perms = 0;
1153         int save_only_existing = only_existing;
1154         int save_opt_ignore_existing = opt_ignore_existing;
1155         int save_do_progress = do_progress;
1156         int save_make_backups = make_backups;
1157
1158         allowed_lull = read_batch ? 0 : (io_timeout + 1) / 2;
1159         lull_mod = allowed_lull * 5;
1160
1161         if (protocol_version >= 29) {
1162                 itemizing = 1;
1163                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1164                 code = daemon_log_format_has_i ? 0 : FLOG;
1165         } else if (am_daemon) {
1166                 itemizing = daemon_log_format_has_i && do_xfers;
1167                 maybe_PERMS_REPORT = PERMS_REPORT;
1168                 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1169         } else if (!am_server) {
1170                 itemizing = log_format_has_i;
1171                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1172                 code = itemizing ? 0 : FINFO;
1173         } else {
1174                 itemizing = 0;
1175                 maybe_PERMS_REPORT = PERMS_REPORT;
1176                 code = FINFO;
1177         }
1178
1179         if (verbose > 2) {
1180                 rprintf(FINFO, "generator starting pid=%ld count=%d\n",
1181                         (long)getpid(), flist->count);
1182         }
1183
1184         if (delete_before && !local_name && flist->count > 0)
1185                 do_delete_pass(flist);
1186         do_progress = 0;
1187
1188         if (whole_file < 0)
1189                 whole_file = 0;
1190         if (verbose >= 2) {
1191                 rprintf(FINFO, "delta-transmission %s\n",
1192                         whole_file
1193                         ? "disabled for local transfer or --whole-file"
1194                         : "enabled");
1195         }
1196
1197         /* Since we often fill up the outgoing socket and then just sit around
1198          * waiting for the other 2 processes to do their thing, we don't want
1199          * to exit on a timeout.  If the data stops flowing, the receiver will
1200          * notice that and let us know via the redo pipe (or its closing). */
1201         ignore_timeout = 1;
1202
1203         for (i = 0; i < flist->count; i++) {
1204                 struct file_struct *file = flist->files[i];
1205
1206                 if (!file->basename)
1207                         continue;
1208
1209                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1210                                file, i, itemizing, maybe_PERMS_REPORT, code,
1211                                f_out);
1212
1213                 /* We need to ensure that any dirs we create have writeable
1214                  * permissions during the time we are putting files within
1215                  * them.  This is then fixed after the transfer is done. */
1216                 if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)
1217                     && !list_only) {
1218                         int mode = file->mode | S_IWUSR; /* user write */
1219                         char *fname = local_name ? local_name : fbuf;
1220                         if (do_chmod(fname, mode & CHMOD_BITS) < 0) {
1221                                 rsyserr(FERROR, errno,
1222                                         "failed to modify permissions on %s",
1223                                         full_fname(fname));
1224                         }
1225                         need_retouch_dir_perms = 1;
1226                 }
1227
1228                 if (preserve_hard_links)
1229                         check_for_finished_hlinks(itemizing, code);
1230
1231                 if (allowed_lull && !(i % lull_mod))
1232                         maybe_send_keepalive();
1233                 else if (!(i % 200))
1234                         maybe_flush_socket();
1235         }
1236         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1237         if (delete_during)
1238                 delete_in_dir(NULL, NULL, NULL);
1239
1240         phase++;
1241         csum_length = SUM_LENGTH;
1242         only_existing = max_size = opt_ignore_existing = 0;
1243         update_only = always_checksum = size_only = 0;
1244         ignore_times = 1;
1245         make_backups = 0; /* avoid a duplicate backup for inplace processing */
1246
1247         if (verbose > 2)
1248                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1249
1250         write_int(f_out, -1);
1251
1252         /* files can cycle through the system more than once
1253          * to catch initial checksum errors */
1254         while ((i = get_redo_num(itemizing, code)) != -1) {
1255                 struct file_struct *file = flist->files[i];
1256                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1257                                file, i, itemizing, maybe_PERMS_REPORT, code,
1258                                f_out);
1259         }
1260
1261         phase++;
1262         only_existing = save_only_existing;
1263         opt_ignore_existing = save_opt_ignore_existing;
1264         make_backups = save_make_backups;
1265
1266         if (verbose > 2)
1267                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1268
1269         write_int(f_out, -1);
1270         /* Reduce round-trip lag-time for a useless delay-updates phase. */
1271         if (protocol_version >= 29 && !delay_updates)
1272                 write_int(f_out, -1);
1273
1274         /* Read MSG_DONE for the redo phase (and any prior messages). */
1275         get_redo_num(itemizing, code);
1276
1277         if (protocol_version >= 29) {
1278                 phase++;
1279                 if (verbose > 2)
1280                         rprintf(FINFO, "generate_files phase=%d\n", phase);
1281                 if (delay_updates)
1282                         write_int(f_out, -1);
1283                 /* Read MSG_DONE for delay-updates phase & prior messages. */
1284                 get_redo_num(itemizing, code);
1285         }
1286
1287         do_progress = save_do_progress;
1288         if (delete_after && !local_name && flist->count > 0)
1289                 do_delete_pass(flist);
1290
1291         if ((need_retouch_dir_perms || need_retouch_dir_times)
1292             && !list_only && !local_name && !dry_run) {
1293                 int j = 0;
1294                 /* Now we need to fix any directory permissions that were
1295                  * modified during the transfer and/or re-set any tweaked
1296                  * modified-time values. */
1297                 for (i = 0; i < flist->count; i++) {
1298                         struct file_struct *file = flist->files[i];
1299                         if (!file->basename || !S_ISDIR(file->mode))
1300                                 continue;
1301                         if (!need_retouch_dir_times && file->mode & S_IWUSR)
1302                                 continue;
1303                         recv_generator(f_name(file), file, i, itemizing,
1304                                        maybe_PERMS_REPORT, code, -1);
1305                         if (allowed_lull && !(++j % lull_mod))
1306                                 maybe_send_keepalive();
1307                         else if (!(j % 200))
1308                                 maybe_flush_socket();
1309                 }
1310         }
1311         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1312
1313         if (max_delete > 0 && deletion_count > max_delete) {
1314                 rprintf(FINFO,
1315                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
1316                         deletion_count - max_delete);
1317                 io_error |= IOERR_DEL_LIMIT;
1318         }
1319
1320         if (verbose > 2)
1321                 rprintf(FINFO,"generate_files finished\n");
1322 }