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          || list_only)
 287                 return;
 288
 289         for (j = 0; j < flist->count; j++) {
 290                 struct file_struct *file = flist->files[j];
 291
 292                 if (!(file->flags & FLAG_DEL_HERE))
 293                         continue;
 294
 295                 f_name_to(file, fbuf);
 296                 if (verbose > 1 && file->flags & FLAG_TOP_DIR)
 297                         rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf));
 298
 299                 delete_in_dir(flist, fbuf, file);
 300         }
 301         if (do_progress && !am_server)
 302                 rprintf(FINFO, "                    \r");
 303 }
 304
 305 static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st)
 306 {
 307         if (preserve_perms
 308          && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
 309                 return 0;
 310
 311         if (am_root && preserve_uid && st->st_uid != file->uid)
 312                 return 0;
 313
 314         if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid)
 315                 return 0;
 316
 317         return 1;
 318 }
 319
 320
 321 void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st,
 322              int32 iflags, uchar fnamecmp_type, char *xname)
 323 {
 324         if (statret == 0) {
 325                 if (S_ISREG(file->mode) && file->length != st->st_size)
 326                         iflags |= ITEM_REPORT_SIZE;
 327                 if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) {
 328                         int keep_time = !preserve_times ? 0
 329                             : S_ISDIR(file->mode) ? !omit_dir_times
 330                             : !S_ISLNK(file->mode);
 331
 332                         if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time)
 333                             || (keep_time && file->modtime != st->st_mtime))
 334                                 iflags |= ITEM_REPORT_TIME;
 335                         if (preserve_perms && file->mode != st->st_mode)
 336                                 iflags |= ITEM_REPORT_PERMS;
 337                         if (preserve_uid && am_root && file->uid != st->st_uid)
 338                                 iflags |= ITEM_REPORT_OWNER;
 339                         if (preserve_gid && file->gid != GID_NONE
 340                             && st->st_gid != file->gid)
 341                                 iflags |= ITEM_REPORT_GROUP;
 342                 }
 343         } else
 344                 iflags |= ITEM_IS_NEW;
 345
 346         iflags &= 0xffff;
 347         if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1
 348           || (xname && *xname)) && !read_batch) {
 349                 if (protocol_version >= 29) {
 350                         if (ndx >= 0)
 351                                 write_int(sock_f_out, ndx);
 352                         write_shortint(sock_f_out, iflags);
 353                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 354                                 write_byte(sock_f_out, fnamecmp_type);
 355                         if (iflags & ITEM_XNAME_FOLLOWS)
 356                                 write_vstring(sock_f_out, xname, strlen(xname));
 357                 } else if (ndx >= 0)
 358                         log_item(file, &stats, iflags, xname);
 359         }
 360 }
 361
 362
 363 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 364 static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 365 {
 366         if (st->st_size != file->length)
 367                 return 0;
 368
 369         /* if always checksum is set then we use the checksum instead
 370            of the file time to determine whether to sync */
 371         if (always_checksum && S_ISREG(st->st_mode)) {
 372                 char sum[MD4_SUM_LENGTH];
 373                 file_checksum(fn, sum, st->st_size);
 374                 return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
 375                                                         : MD4_SUM_LENGTH) == 0;
 376         }
 377
 378         if (size_only)
 379                 return 1;
 380
 381         if (ignore_times)
 382                 return 0;
 383
 384         return cmp_modtime(st->st_mtime, file->modtime) == 0;
 385 }
 386
 387
 388 /*
 389  * set (initialize) the size entries in the per-file sum_struct
 390  * calculating dynamic block and checksum sizes.
 391  *
 392  * This is only called from generate_and_send_sums() but is a separate
 393  * function to encapsulate the logic.
 394  *
 395  * The block size is a rounded square root of file length.
 396  *
 397  * The checksum size is determined according to:
 398  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 399  * provided by Donovan Baarda which gives a probability of rsync
 400  * algorithm corrupting data and falling back using the whole md4
 401  * checksums.
 402  *
 403  * This might be made one of several selectable heuristics.
 404  */
 405 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 406 {
 407         int32 blength;
 408         int s2length;
 409
 410         if (block_size)
 411                 blength = block_size;
 412         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 413                 blength = BLOCK_SIZE;
 414         else {
 415                 int32 c;
 416                 int64 l;
 417                 int cnt;
 418                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 419                 if (cnt >= 31 || c >= MAX_BLOCK_SIZE)
 420                         blength = MAX_BLOCK_SIZE;
 421                 else {
 422                     blength = 0;
 423                     do {
 424                             blength |= c;
 425                             if (len < (int64)blength * blength)
 426                                     blength &= ~c;
 427                             c >>= 1;
 428                     } while (c >= 8);   /* round to multiple of 8 */
 429                     blength = MAX(blength, BLOCK_SIZE);
 430                 }
 431         }
 432
 433         if (protocol_version < 27) {
 434                 s2length = csum_length;
 435         } else if (csum_length == SUM_LENGTH) {
 436                 s2length = SUM_LENGTH;
 437         } else {
 438                 int32 c;
 439                 int64 l;
 440                 int b = BLOCKSUM_BIAS;
 441                 for (l = len; l >>= 1; b += 2) {}
 442                 for (c = blength; c >>= 1 && b; b--) {}
 443                 /* add a bit, subtract rollsum, round up. */
 444                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 445                 s2length = MAX(s2length, csum_length);
 446                 s2length = MIN(s2length, SUM_LENGTH);
 447         }
 448
 449         sum->flength    = len;
 450         sum->blength    = blength;
 451         sum->s2length   = s2length;
 452         sum->count      = (len + (blength - 1)) / blength;
 453         sum->remainder  = (len % blength);
 454
 455         if (sum->count && verbose > 2) {
 456                 rprintf(FINFO,
 457                         "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n",
 458                         (double)sum->count, (long)sum->remainder, (long)sum->blength,
 459                         sum->s2length, (double)sum->flength);
 460         }
 461 }
 462
 463
 464 /*
 465  * Generate and send a stream of signatures/checksums that describe a buffer
 466  *
 467  * Generate approximately one checksum every block_len bytes.
 468  */
 469 static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 470 {
 471         int32 i;
 472         struct map_struct *mapbuf;
 473         struct sum_struct sum;
 474         OFF_T offset = 0;
 475
 476         sum_sizes_sqroot(&sum, len);
 477
 478         if (len > 0)
 479                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 480         else
 481                 mapbuf = NULL;
 482
 483         write_sum_head(f_out, &sum);
 484
 485         for (i = 0; i < sum.count; i++) {
 486                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 487                 char *map = map_ptr(mapbuf, offset, n1);
 488                 uint32 sum1 = get_checksum1(map, n1);
 489                 char sum2[SUM_LENGTH];
 490
 491                 if (f_copy >= 0)
 492                         full_write(f_copy, map, n1);
 493
 494                 get_checksum2(map, n1, sum2);
 495
 496                 if (verbose > 3) {
 497                         rprintf(FINFO,
 498                                 "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n",
 499                                 (double)i, (double)offset, (long)n1,
 500                                 (unsigned long)sum1);
 501                 }
 502                 write_int(f_out, sum1);
 503                 write_buf(f_out, sum2, sum.s2length);
 504                 len -= n1;
 505                 offset += n1;
 506         }
 507
 508         if (mapbuf)
 509                 unmap_file(mapbuf);
 510 }
 511
 512
 513 /* Try to find a filename in the same dir as "fname" with a similar name. */
 514 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
 515 {
 516         int fname_len, fname_suf_len;
 517         const char *fname_suf, *fname = file->basename;
 518         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 519         int j, lowest_j = -1;
 520
 521         fname_len = strlen(fname);
 522         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 523
 524         for (j = 0; j < dirlist->count; j++) {
 525                 struct file_struct *fp = dirlist->files[j];
 526                 const char *suf, *name;
 527                 int len, suf_len;
 528                 uint32 dist;
 529
 530                 if (!S_ISREG(fp->mode) || !fp->length
 531                     || fp->flags & FLAG_NO_FUZZY)
 532                         continue;
 533
 534                 name = fp->basename;
 535
 536                 if (fp->length == file->length
 537                     && fp->modtime == file->modtime) {
 538                         if (verbose > 4) {
 539                                 rprintf(FINFO,
 540                                         "fuzzy size/modtime match for %s\n",
 541                                         name);
 542                         }
 543                         return j;
 544                 }
 545
 546                 len = strlen(name);
 547                 suf = find_filename_suffix(name, len, &suf_len);
 548
 549                 dist = fuzzy_distance(name, len, fname, fname_len);
 550                 /* Add some extra weight to how well the suffixes match. */
 551                 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
 552                       * 10;
 553                 if (verbose > 4) {
 554                         rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 555                                 name, (int)(dist>>16), (int)(dist&0xFFFF));
 556                 }
 557                 if (dist <= lowest_dist) {
 558                         lowest_dist = dist;
 559                         lowest_j = j;
 560                 }
 561         }
 562
 563         return lowest_j;
 564 }
 565
 566 void check_for_finished_hlinks(int itemizing, enum logcode code)
 567 {
 568         struct file_struct *file;
 569         int ndx;
 570
 571         while ((ndx = get_hlink_num()) != -1) {
 572                 if (ndx < 0 || ndx >= the_file_list->count)
 573                         continue;
 574
 575                 file = the_file_list->files[ndx];
 576                 if (!file->link_u.links)
 577                         continue;
 578
 579                 hard_link_cluster(file, ndx, itemizing, code);
 580         }
 581 }
 582
 583 static int phase = 0;
 584
 585 /* Acts on the_file_list->file's ndx'th item, whose name is fname.  If a dir,
 586  * make sure it exists, and has the right permissions/timestamp info.  For
 587  * all other non-regular files (symlinks, etc.) we create them here.  For
 588  * regular files that have changed, we try to find a basis file and then
 589  * start sending checksums.
 590  *
 591  * Note that f_out is set to -1 when doing final directory-permission and
 592  * modification-time repair. */
 593 static void recv_generator(char *fname, struct file_struct *file, int ndx,
 594                            int itemizing, int maybe_PERMS_REPORT,
 595                            enum logcode code, int f_out)
 596 {
 597         static int missing_below = -1, excluded_below = -1;
 598         static char *fuzzy_dirname = "";
 599         static struct file_list *fuzzy_dirlist = NULL;
 600         struct file_struct *fuzzy_file = NULL;
 601         int fd = -1, f_copy = -1;
 602         STRUCT_STAT st, real_st, partial_st;
 603         struct file_struct *back_file = NULL;
 604         int statret, real_ret, stat_errno;
 605         char *fnamecmp, *partialptr, *backupptr = NULL;
 606         char fnamecmpbuf[MAXPATHLEN];
 607         uchar fnamecmp_type;
 608
 609         if (list_only)
 610                 return;
 611
 612         if (!fname) {
 613                 if (fuzzy_dirlist) {
 614                         flist_free(fuzzy_dirlist);
 615                         fuzzy_dirlist = NULL;
 616                         fuzzy_dirname = "";
 617                 }
 618                 if (missing_below >= 0) {
 619                         dry_run--;
 620                         missing_below = -1;
 621                 }
 622                 return;
 623         }
 624
 625         if (verbose > 2) {
 626                 rprintf(FINFO, "recv_generator(%s,%d)\n",
 627                         safe_fname(fname), ndx);
 628         }
 629
 630         if (server_filter_list.head) {
 631                 if (excluded_below >= 0) {
 632                         if (file->dir.depth > excluded_below)
 633                                 goto skipping;
 634                         excluded_below = -1;
 635                 }
 636                 if (check_filter(&server_filter_list, fname,
 637                                  S_ISDIR(file->mode)) < 0) {
 638                         if (S_ISDIR(file->mode))
 639                                 excluded_below = file->dir.depth;
 640                     skipping:
 641                         if (verbose) {
 642                                 rprintf(FINFO,
 643                                         "skipping server-excluded file \"%s\"\n",
 644                                         safe_fname(fname));
 645                         }
 646                         return;
 647                 }
 648         }
 649
 650         if (missing_below >= 0 && file->dir.depth <= missing_below) {
 651                 dry_run--;
 652                 missing_below = -1;
 653         }
 654         if (dry_run > 1) {
 655                 statret = -1;
 656                 stat_errno = ENOENT;
 657         } else {
 658                 if (fuzzy_basis && S_ISREG(file->mode)) {
 659                         char *dn = file->dirname ? file->dirname : ".";
 660                         if (fuzzy_dirname != dn
 661                             && strcmp(fuzzy_dirname, dn) != 0) {
 662                                 if (fuzzy_dirlist)
 663                                         flist_free(fuzzy_dirlist);
 664                                 fuzzy_dirlist = get_dirlist(dn, -1, 1);
 665                         }
 666                         fuzzy_dirname = dn;
 667                 }
 668
 669                 statret = link_stat(fname, &st,
 670                                     keep_dirlinks && S_ISDIR(file->mode));
 671                 stat_errno = errno;
 672         }
 673
 674         if (only_existing && statret == -1 && stat_errno == ENOENT) {
 675                 /* we only want to update existing files */
 676                 if (verbose > 1) {
 677                         rprintf(FINFO, "not creating new %s \"%s\"\n",
 678                                 S_ISDIR(file->mode) ? "directory" : "file",
 679                                 safe_fname(fname));
 680                 }
 681                 return;
 682         }
 683
 684         if (statret == 0 && !preserve_perms
 685             && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
 686                 /* if the file exists already and we aren't perserving
 687                  * permissions then act as though the remote end sent
 688                  * us the file permissions we already have */
 689                 file->mode = (file->mode & ~CHMOD_BITS)
 690                            | (st.st_mode & CHMOD_BITS);
 691         }
 692
 693         if (S_ISDIR(file->mode)) {
 694                 /* The file to be received is a directory, so we need
 695                  * to prepare appropriately.  If there is already a
 696                  * file of that name and it is *not* a directory, then
 697                  * we need to delete it.  If it doesn't exist, then
 698                  * (perhaps recursively) create it. */
 699                 if (statret == 0 && !S_ISDIR(st.st_mode)) {
 700                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 701                                 return;
 702                         statret = -1;
 703                 }
 704                 if (dry_run && statret != 0 && missing_below < 0) {
 705                         missing_below = file->dir.depth;
 706                         dry_run++;
 707                 }
 708                 if (itemizing && f_out != -1) {
 709                         itemize(file, ndx, statret, &st,
 710                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
 711                 }
 712                 if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
 713                         if (!relative_paths || errno != ENOENT
 714                             || create_directory_path(fname, orig_umask) < 0
 715                             || do_mkdir(fname, file->mode) < 0) {
 716                                 rsyserr(FERROR, errno,
 717                                         "recv_generator: mkdir %s failed",
 718                                         full_fname(fname));
 719                         }
 720                 }
 721                 if (set_perms(fname, file, statret ? NULL : &st, 0)
 722                     && verbose && code && f_out != -1)
 723                         rprintf(code, "%s/\n", safe_fname(fname));
 724                 if (delete_during && f_out != -1 && !phase && dry_run < 2
 725                     && (file->flags & FLAG_DEL_HERE))
 726                         delete_in_dir(the_file_list, fname, file);
 727                 return;
 728         }
 729
 730         if (preserve_links && S_ISLNK(file->mode)) {
 731 #ifdef SUPPORT_LINKS
 732                 if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
 733                         if (verbose) {
 734                                 if (the_file_list->count == 1)
 735                                         fname = f_name(file);
 736                                 rprintf(FINFO,
 737                                         "ignoring unsafe symlink %s -> \"%s\"\n",
 738                                         full_fname(fname),
 739                                         safe_fname(file->u.link));
 740                         }
 741                         return;
 742                 }
 743                 if (statret == 0) {
 744                         char lnk[MAXPATHLEN];
 745                         int len;
 746
 747                         if (!S_ISDIR(st.st_mode)
 748                             && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) {
 749                                 lnk[len] = 0;
 750                                 /* A link already pointing to the
 751                                  * right place -- no further action
 752                                  * required. */
 753                                 if (strcmp(lnk, file->u.link) == 0) {
 754                                         if (itemizing) {
 755                                                 itemize(file, ndx, 0, &st, 0,
 756                                                         0, NULL);
 757                                         }
 758                                         set_perms(fname, file, &st,
 759                                                   maybe_PERMS_REPORT);
 760                                         return;
 761                                 }
 762                         }
 763                         /* Not the right symlink (or not a symlink), so
 764                          * delete it. */
 765                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 766                                 return;
 767                         if (!S_ISLNK(st.st_mode))
 768                                 statret = -1;
 769                 }
 770                 if (do_symlink(file->u.link,fname) != 0) {
 771                         rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
 772                                 full_fname(fname), safe_fname(file->u.link));
 773                 } else {
 774                         set_perms(fname,file,NULL,0);
 775                         if (itemizing) {
 776                                 itemize(file, ndx, statret, &st,
 777                                         ITEM_LOCAL_CHANGE, 0, NULL);
 778                         }
 779                         if (code && verbose) {
 780                                 rprintf(code, "%s -> %s\n", safe_fname(fname),
 781                                         safe_fname(file->u.link));
 782                         }
 783                         if (remove_sent_files && !dry_run) {
 784                                 char numbuf[4];
 785                                 SIVAL(numbuf, 0, ndx);
 786                                 send_msg(MSG_SUCCESS, numbuf, 4);
 787                         }
 788                 }
 789 #endif
 790                 return;
 791         }
 792
 793         if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
 794                 if (statret != 0 ||
 795                     st.st_mode != file->mode ||
 796                     st.st_rdev != file->u.rdev) {
 797                         if (delete_item(fname, st.st_mode, DEL_TERSE) < 0)
 798                                 return;
 799                         if (!IS_DEVICE(st.st_mode))
 800                                 statret = -1;
 801                         if (verbose > 2) {
 802                                 rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
 803                                         safe_fname(fname),
 804                                         (int)file->mode, (int)file->u.rdev);
 805                         }
 806                         if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
 807                                 rsyserr(FERROR, errno, "mknod %s failed",
 808                                         full_fname(fname));
 809                         } else {
 810                                 set_perms(fname,file,NULL,0);
 811                                 if (itemizing) {
 812                                         itemize(file, ndx, statret, &st,
 813                                                 ITEM_LOCAL_CHANGE, 0, NULL);
 814                                 }
 815                                 if (code && verbose) {
 816                                         rprintf(code, "%s\n",
 817                                                 safe_fname(fname));
 818                                 }
 819                         }
 820                 } else {
 821                         if (itemizing)
 822                                 itemize(file, ndx, statret, &st, 0, 0, NULL);
 823                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
 824                 }
 825                 return;
 826         }
 827
 828         if (preserve_hard_links
 829             && hard_link_check(file, ndx, fname, statret, &st,
 830                                itemizing, code, HL_CHECK_MASTER))
 831                 return;
 832
 833         if (!S_ISREG(file->mode)) {
 834                 if (the_file_list->count == 1)
 835                         fname = f_name(file);
 836                 rprintf(FINFO, "skipping non-regular file \"%s\"\n",
 837                         safe_fname(fname));
 838                 return;
 839         }
 840
 841         if (max_size && file->length > max_size) {
 842                 if (verbose > 1) {
 843                         if (the_file_list->count == 1)
 844                                 fname = f_name(file);
 845                         rprintf(FINFO, "%s is over max-size\n",
 846                                 safe_fname(fname));
 847                 }
 848                 return;
 849         }
 850
 851         if (opt_ignore_existing && statret == 0) {
 852                 if (verbose > 1)
 853                         rprintf(FINFO, "%s exists\n", safe_fname(fname));
 854                 return;
 855         }
 856
 857         if (update_only && statret == 0
 858             && cmp_modtime(st.st_mtime, file->modtime) > 0) {
 859                 if (verbose > 1)
 860                         rprintf(FINFO, "%s is newer\n", safe_fname(fname));
 861                 return;
 862         }
 863
 864         fnamecmp = fname;
 865         fnamecmp_type = FNAMECMP_FNAME;
 866
 867         if (statret == 0 && !S_ISREG(st.st_mode)) {
 868                 if (delete_item(fname, st.st_mode, DEL_TERSE) != 0)
 869                         return;
 870                 statret = -1;
 871                 stat_errno = ENOENT;
 872         }
 873
 874         if (statret != 0 && basis_dir[0] != NULL) {
 875                 int best_match = -1;
 876                 int match_level = 0;
 877                 int i = 0;
 878                 do {
 879                         pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 880                                  basis_dir[i], fname);
 881                         if (link_stat(fnamecmpbuf, &st, 0) < 0
 882                             || !S_ISREG(st.st_mode))
 883                                 continue;
 884                         switch (match_level) {
 885                         case 0:
 886                                 best_match = i;
 887                                 match_level = 1;
 888                                 /* FALL THROUGH */
 889                         case 1:
 890                                 if (!unchanged_file(fnamecmpbuf, file, &st))
 891                                         continue;
 892                                 best_match = i;
 893                                 match_level = 2;
 894                                 if (copy_dest)
 895                                         break;
 896                                 /* FALL THROUGH */
 897                         case 2:
 898                                 if (!unchanged_attrs(file, &st))
 899                                         continue;
 900                                 best_match = i;
 901                                 match_level = 3;
 902                                 break;
 903                         }
 904                         break;
 905                 } while (basis_dir[++i] != NULL);
 906                 if (match_level) {
 907                         statret = 0;
 908                         if (i != best_match) {
 909                                 i = best_match;
 910                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
 911                                          basis_dir[i], fname);
 912                                 if (link_stat(fnamecmpbuf, &st, 0) < 0) {
 913                                         match_level = 0;
 914                                         statret = -1;
 915                                         stat_errno = errno;
 916                                 }
 917                         }
 918 #ifdef HAVE_LINK
 919                         if (link_dest && match_level == 3) {
 920                                 if (hard_link_one(file, ndx, fname, -1, &st,
 921                                                   fnamecmpbuf, 1,
 922                                                   itemizing && verbose > 1,
 923                                                   code) == 0) {
 924                                         if (preserve_hard_links
 925                                             && file->link_u.links) {
 926                                                 hard_link_cluster(file, ndx,
 927                                                                   itemizing,
 928                                                                   code);
 929                                         }
 930                                         return;
 931                                 }
 932                                 match_level = 2;
 933                         }
 934 #endif
 935                         if (match_level == 2) {
 936                                 /* Copy the file locally. */
 937                                 if (copy_file(fnamecmpbuf, fname, file->mode) < 0) {
 938                                         if (verbose) {
 939                                                 rsyserr(FINFO, errno,
 940                                                         "copy_file %s => %s",
 941                                                         full_fname(fnamecmpbuf),
 942                                                         safe_fname(fname));
 943                                         }
 944                                         match_level = 0;
 945                                         statret = -1;
 946                                 } else {
 947                                         if (itemizing) {
 948                                                 itemize(file, ndx, 0, &st,
 949                                                         ITEM_LOCAL_CHANGE, 0,
 950                                                         NULL);
 951                                         } else if (verbose && code) {
 952                                                 rprintf(code, "%s\n",
 953                                                         safe_fname(fname));
 954                                         }
 955                                         set_perms(fname, file, NULL,
 956                                                   maybe_PERMS_REPORT);
 957                                         if (preserve_hard_links
 958                                             && file->link_u.links) {
 959                                                 hard_link_cluster(file, ndx,
 960                                                                   itemizing,
 961                                                                   code);
 962                                         }
 963                                         return;
 964                                 }
 965                         } else if (compare_dest || match_level == 1) {
 966                                 fnamecmp = fnamecmpbuf;
 967                                 fnamecmp_type = i;
 968                         }
 969                 }
 970         }
 971
 972         real_ret = statret;
 973         real_st = st;
 974
 975         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
 976             && link_stat(partialptr, &partial_st, 0) == 0
 977             && S_ISREG(partial_st.st_mode)) {
 978                 if (statret != 0)
 979                         goto prepare_to_open;
 980         } else
 981                 partialptr = NULL;
 982
 983         if (statret != 0 && fuzzy_basis && dry_run <= 1) {
 984                 int j = find_fuzzy(file, fuzzy_dirlist);
 985                 if (j >= 0) {
 986                         fuzzy_file = fuzzy_dirlist->files[j];
 987                         f_name_to(fuzzy_file, fnamecmpbuf);
 988                         if (verbose > 2) {
 989                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
 990                                         safe_fname(fname), safe_fname(fnamecmpbuf));
 991                         }
 992                         st.st_size = fuzzy_file->length;
 993                         statret = 0;
 994                         fnamecmp = fnamecmpbuf;
 995                         fnamecmp_type = FNAMECMP_FUZZY;
 996                 }
 997         }
 998
 999         if (statret != 0) {
1000                 if (preserve_hard_links
1001                     && hard_link_check(file, ndx, fname, statret, &st,
1002                                        itemizing, code, HL_SKIP))
1003                         return;
1004                 if (stat_errno == ENOENT)
1005                         goto notify_others;
1006                 if (verbose > 1) {
1007                         rsyserr(FERROR, stat_errno,
1008                                 "recv_generator: failed to stat %s",
1009                                 full_fname(fname));
1010                 }
1011                 return;
1012         }
1013
1014         if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1015                 ;
1016         else if (fnamecmp_type == FNAMECMP_FUZZY)
1017                 ;
1018         else if (unchanged_file(fnamecmp, file, &st)) {
1019                 if (fnamecmp_type == FNAMECMP_FNAME) {
1020                         if (itemizing) {
1021                                 itemize(file, ndx, real_ret, &real_st,
1022                                         0, 0, NULL);
1023                         }
1024                         set_perms(fname, file, &st, maybe_PERMS_REPORT);
1025                         if (preserve_hard_links && file->link_u.links)
1026                                 hard_link_cluster(file, ndx, itemizing, code);
1027                         return;
1028                 }
1029                 /* Only --compare-dest gets here. */
1030                 itemize(file, ndx, real_ret, &real_st,
1031                         ITEM_NO_DEST_AND_NO_UPDATE, 0, NULL);
1032                 return;
1033         }
1034
1035 prepare_to_open:
1036         if (partialptr) {
1037                 st = partial_st;
1038                 fnamecmp = partialptr;
1039                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1040                 statret = 0;
1041         }
1042
1043         if (!do_xfers || read_batch || whole_file)
1044                 goto notify_others;
1045
1046         if (fuzzy_basis) {
1047                 int j = flist_find(fuzzy_dirlist, file);
1048                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1049                         fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY;
1050         }
1051
1052         /* open the file */
1053         fd = do_open(fnamecmp, O_RDONLY, 0);
1054
1055         if (fd == -1) {
1056                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1057                         full_fname(fnamecmp));
1058             pretend_missing:
1059                 /* pretend the file didn't exist */
1060                 if (preserve_hard_links
1061                     && hard_link_check(file, ndx, fname, statret, &st,
1062                                        itemizing, code, HL_SKIP))
1063                         return;
1064                 statret = real_ret = -1;
1065                 goto notify_others;
1066         }
1067
1068         if (inplace && make_backups && fnamecmp_type == FNAMECMP_FNAME) {
1069                 if (!(backupptr = get_backup_name(fname))) {
1070                         close(fd);
1071                         return;
1072                 }
1073                 if (!(back_file = make_file(fname, NULL, NO_FILTERS))) {
1074                         close(fd);
1075                         goto pretend_missing;
1076                 }
1077                 if (robust_unlink(backupptr) && errno != ENOENT) {
1078                         rsyserr(FERROR, errno, "unlink %s",
1079                                 full_fname(backupptr));
1080                         free(back_file);
1081                         close(fd);
1082                         return;
1083                 }
1084                 if ((f_copy = do_open(backupptr,
1085                     O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1086                         rsyserr(FERROR, errno, "open %s",
1087                                 full_fname(backupptr));
1088                         free(back_file);
1089                         close(fd);
1090                         return;
1091                 }
1092                 fnamecmp_type = FNAMECMP_BACKUP;
1093         }
1094
1095         if (verbose > 3) {
1096                 rprintf(FINFO, "gen mapped %s of size %.0f\n",
1097                         safe_fname(fnamecmp), (double)st.st_size);
1098         }
1099
1100         if (verbose > 2)
1101                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1102
1103 notify_others:
1104         write_int(f_out, ndx);
1105         if (itemizing) {
1106                 int iflags = ITEM_TRANSFER;
1107                 if (always_checksum)
1108                         iflags |= ITEM_REPORT_CHECKSUM;
1109                 if (fnamecmp_type != FNAMECMP_FNAME)
1110                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1111                 if (fnamecmp_type == FNAMECMP_FUZZY)
1112                         iflags |= ITEM_XNAME_FOLLOWS;
1113                 itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type,
1114                         fuzzy_file ? fuzzy_file->basename : NULL);
1115         }
1116
1117         if (!do_xfers) {
1118                 if (preserve_hard_links && file->link_u.links)
1119                         hard_link_cluster(file, ndx, itemizing, code);
1120                 return;
1121         }
1122         if (read_batch)
1123                 return;
1124
1125         if (statret != 0 || whole_file) {
1126                 write_sum_head(f_out, NULL);
1127                 return;
1128         }
1129
1130         generate_and_send_sums(fd, st.st_size, f_out, f_copy);
1131
1132         if (f_copy >= 0) {
1133                 close(f_copy);
1134                 set_perms(backupptr, back_file, NULL, 0);
1135                 if (verbose > 1) {
1136                         rprintf(FINFO, "backed up %s to %s\n",
1137                                 safe_fname(fname), safe_fname(backupptr));
1138                 }
1139                 free(back_file);
1140         }
1141
1142         close(fd);
1143 }
1144
1145
1146 void generate_files(int f_out, struct file_list *flist, char *local_name)
1147 {
1148         int i, lull_mod;
1149         char fbuf[MAXPATHLEN];
1150         int itemizing, maybe_PERMS_REPORT;
1151         enum logcode code;
1152         int need_retouch_dir_times = preserve_times && !omit_dir_times;
1153         int need_retouch_dir_perms = 0;
1154         int save_only_existing = only_existing;
1155         int save_opt_ignore_existing = opt_ignore_existing;
1156         int save_do_progress = do_progress;
1157         int save_make_backups = make_backups;
1158
1159         allowed_lull = read_batch ? 0 : (io_timeout + 1) / 2;
1160         lull_mod = allowed_lull * 5;
1161
1162         if (protocol_version >= 29) {
1163                 itemizing = 1;
1164                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1165                 code = daemon_log_format_has_i ? 0 : FLOG;
1166         } else if (am_daemon) {
1167                 itemizing = daemon_log_format_has_i && do_xfers;
1168                 maybe_PERMS_REPORT = PERMS_REPORT;
1169                 code = itemizing || !do_xfers ? FCLIENT : FINFO;
1170         } else if (!am_server) {
1171                 itemizing = log_format_has_i;
1172                 maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT;
1173                 code = itemizing ? 0 : FINFO;
1174         } else {
1175                 itemizing = 0;
1176                 maybe_PERMS_REPORT = PERMS_REPORT;
1177                 code = FINFO;
1178         }
1179
1180         if (verbose > 2) {
1181                 rprintf(FINFO, "generator starting pid=%ld count=%d\n",
1182                         (long)getpid(), flist->count);
1183         }
1184
1185         if (delete_before && !local_name && flist->count > 0)
1186                 do_delete_pass(flist);
1187         do_progress = 0;
1188
1189         if (whole_file < 0)
1190                 whole_file = 0;
1191         if (verbose >= 2) {
1192                 rprintf(FINFO, "delta-transmission %s\n",
1193                         whole_file
1194                         ? "disabled for local transfer or --whole-file"
1195                         : "enabled");
1196         }
1197
1198         /* Since we often fill up the outgoing socket and then just sit around
1199          * waiting for the other 2 processes to do their thing, we don't want
1200          * to exit on a timeout.  If the data stops flowing, the receiver will
1201          * notice that and let us know via the redo pipe (or its closing). */
1202         ignore_timeout = 1;
1203
1204         for (i = 0; i < flist->count; i++) {
1205                 struct file_struct *file = flist->files[i];
1206
1207                 if (!file->basename)
1208                         continue;
1209
1210                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1211                                file, i, itemizing, maybe_PERMS_REPORT, code,
1212                                f_out);
1213
1214                 /* We need to ensure that any dirs we create have writeable
1215                  * permissions during the time we are putting files within
1216                  * them.  This is then fixed after the transfer is done. */
1217                 if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)
1218                     && !list_only) {
1219                         int mode = file->mode | S_IWUSR; /* user write */
1220                         char *fname = local_name ? local_name : fbuf;
1221                         if (do_chmod(fname, mode & CHMOD_BITS) < 0) {
1222                                 rsyserr(FERROR, errno,
1223                                         "failed to modify permissions on %s",
1224                                         full_fname(fname));
1225                         }
1226                         need_retouch_dir_perms = 1;
1227                 }
1228
1229                 if (preserve_hard_links)
1230                         check_for_finished_hlinks(itemizing, code);
1231
1232                 if (allowed_lull && !(i % lull_mod))
1233                         maybe_send_keepalive();
1234                 else if (!(i % 200))
1235                         maybe_flush_socket();
1236         }
1237         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1238         if (delete_during)
1239                 delete_in_dir(NULL, NULL, NULL);
1240
1241         phase++;
1242         csum_length = SUM_LENGTH;
1243         only_existing = max_size = opt_ignore_existing = 0;
1244         update_only = always_checksum = size_only = 0;
1245         ignore_times = 1;
1246         make_backups = 0; /* avoid a duplicate backup for inplace processing */
1247
1248         if (verbose > 2)
1249                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1250
1251         write_int(f_out, -1);
1252
1253         /* files can cycle through the system more than once
1254          * to catch initial checksum errors */
1255         while ((i = get_redo_num(itemizing, code)) != -1) {
1256                 struct file_struct *file = flist->files[i];
1257                 recv_generator(local_name ? local_name : f_name_to(file, fbuf),
1258                                file, i, itemizing, maybe_PERMS_REPORT, code,
1259                                f_out);
1260         }
1261
1262         phase++;
1263         only_existing = save_only_existing;
1264         opt_ignore_existing = save_opt_ignore_existing;
1265         make_backups = save_make_backups;
1266
1267         if (verbose > 2)
1268                 rprintf(FINFO,"generate_files phase=%d\n",phase);
1269
1270         write_int(f_out, -1);
1271         /* Reduce round-trip lag-time for a useless delay-updates phase. */
1272         if (protocol_version >= 29 && !delay_updates)
1273                 write_int(f_out, -1);
1274
1275         /* Read MSG_DONE for the redo phase (and any prior messages). */
1276         get_redo_num(itemizing, code);
1277
1278         if (protocol_version >= 29) {
1279                 phase++;
1280                 if (verbose > 2)
1281                         rprintf(FINFO, "generate_files phase=%d\n", phase);
1282                 if (delay_updates)
1283                         write_int(f_out, -1);
1284                 /* Read MSG_DONE for delay-updates phase & prior messages. */
1285                 get_redo_num(itemizing, code);
1286         }
1287
1288         do_progress = save_do_progress;
1289         if (delete_after && !local_name && flist->count > 0)
1290                 do_delete_pass(flist);
1291
1292         if ((need_retouch_dir_perms || need_retouch_dir_times)
1293             && !list_only && !local_name && !dry_run) {
1294                 int j = 0;
1295                 /* Now we need to fix any directory permissions that were
1296                  * modified during the transfer and/or re-set any tweaked
1297                  * modified-time values. */
1298                 for (i = 0; i < flist->count; i++) {
1299                         struct file_struct *file = flist->files[i];
1300                         if (!file->basename || !S_ISDIR(file->mode))
1301                                 continue;
1302                         if (!need_retouch_dir_times && file->mode & S_IWUSR)
1303                                 continue;
1304                         recv_generator(f_name(file), file, i, itemizing,
1305                                        maybe_PERMS_REPORT, code, -1);
1306                         if (allowed_lull && !(++j % lull_mod))
1307                                 maybe_send_keepalive();
1308                         else if (!(j % 200))
1309                                 maybe_flush_socket();
1310                 }
1311         }
1312         recv_generator(NULL, NULL, 0, 0, 0, code, -1);
1313
1314         if (max_delete > 0 && deletion_count > max_delete) {
1315                 rprintf(FINFO,
1316                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
1317                         deletion_count - max_delete);
1318                 io_error |= IOERR_DEL_LIMIT;
1319         }
1320
1321         if (verbose > 2)
1322                 rprintf(FINFO,"generate_files finished\n");
1323 }