generator.c

   1 /*
   2  * Routines that are exclusive to the generator process.
   3  *
   4  * Copyright (C) 1996-2000 Andrew Tridgell
   5  * Copyright (C) 1996 Paul Mackerras
   6  * Copyright (C) 2002 Martin Pool <mbp@samba.org>
   7  * Copyright (C) 2003-2009 Wayne Davison
   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 3 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 along
  20  * with this program; if not, visit the http://fsf.org website.
  21  */
  22
  23 #include "rsync.h"
  24 #include "inums.h"
  25 #include "ifuncs.h"
  26
  27 extern int dry_run;
  28 extern int do_xfers;
  29 extern int stdout_format_has_i;
  30 extern int logfile_format_has_i;
  31 extern int am_root;
  32 extern int am_server;
  33 extern int am_daemon;
  34 extern int inc_recurse;
  35 extern int relative_paths;
  36 extern int implied_dirs;
  37 extern int keep_dirlinks;
  38 extern int preserve_acls;
  39 extern int preserve_xattrs;
  40 extern int preserve_links;
  41 extern int preserve_devices;
  42 extern int preserve_specials;
  43 extern int preserve_hard_links;
  44 extern int preserve_executability;
  45 extern int preserve_perms;
  46 extern int preserve_times;
  47 extern int delete_mode;
  48 extern int delete_before;
  49 extern int delete_during;
  50 extern int delete_after;
  51 extern int missing_args;
  52 extern int msgdone_cnt;
  53 extern int ignore_errors;
  54 extern int remove_source_files;
  55 extern int delay_updates;
  56 extern int update_only;
  57 extern int human_readable;
  58 extern int ignore_existing;
  59 extern int ignore_non_existing;
  60 extern int inplace;
  61 extern int append_mode;
  62 extern int make_backups;
  63 extern int csum_length;
  64 extern int ignore_times;
  65 extern int size_only;
  66 extern OFF_T max_size;
  67 extern OFF_T min_size;
  68 extern int io_error;
  69 extern int flist_eof;
  70 extern int allowed_lull;
  71 extern int sock_f_out;
  72 extern int protocol_version;
  73 extern int file_total;
  74 extern int fuzzy_basis;
  75 extern int always_checksum;
  76 extern int checksum_len;
  77 extern char *partial_dir;
  78 extern int compare_dest;
  79 extern int copy_dest;
  80 extern int link_dest;
  81 extern int whole_file;
  82 extern int list_only;
  83 extern int read_batch;
  84 extern int write_batch;
  85 extern int safe_symlinks;
  86 extern long block_size; /* "long" because popt can't set an int32. */
  87 extern int unsort_ndx;
  88 extern int max_delete;
  89 extern int force_delete;
  90 extern int one_file_system;
  91 extern int skipped_deletes;
  92 extern dev_t filesystem_dev;
  93 extern mode_t orig_umask;
  94 extern uid_t our_uid;
  95 extern char *tmpdir;
  96 extern char *basis_dir[MAX_BASIS_DIRS+1];
  97 extern struct file_list *cur_flist, *first_flist, *dir_flist;
  98 extern filter_rule_list filter_list, daemon_filter_list;
  99
 100 int maybe_ATTRS_REPORT = 0;
 101
 102 static dev_t dev_zero;
 103 static int deldelay_size = 0, deldelay_cnt = 0;
 104 static char *deldelay_buf = NULL;
 105 static int deldelay_fd = -1;
 106 static int loopchk_limit;
 107 static int dir_tweaking;
 108 static int symlink_timeset_failed_flags;
 109 static int need_retouch_dir_times;
 110 static int need_retouch_dir_perms;
 111 static const char *solo_file = NULL;
 112
 113 enum nonregtype {
 114     TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK
 115 };
 116
 117 /* Forward declarations. */
 118 #ifdef SUPPORT_HARD_LINKS
 119 static void handle_skipped_hlink(struct file_struct *file, int itemizing,
 120                                  enum logcode code, int f_out);
 121 #endif
 122
 123 #define EARLY_DELAY_DONE_MSG() (!delay_updates)
 124 #define EARLY_DELETE_DONE_MSG() (!(delete_during == 2 || delete_after))
 125
 126 static int start_delete_delay_temp(void)
 127 {
 128         char fnametmp[MAXPATHLEN];
 129         int save_dry_run = dry_run;
 130
 131         dry_run = 0;
 132         if (!get_tmpname(fnametmp, "deldelay", False)
 133          || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) {
 134                 rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n",
 135                         inc_recurse ? "" : " -- switching to --delete-after");
 136                 delete_during = 0;
 137                 delete_after = !inc_recurse;
 138                 dry_run = save_dry_run;
 139                 return 0;
 140         }
 141         unlink(fnametmp);
 142         dry_run = save_dry_run;
 143         return 1;
 144 }
 145
 146 static int flush_delete_delay(void)
 147 {
 148         if (deldelay_fd < 0 && !start_delete_delay_temp())
 149                 return 0;
 150         if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) {
 151                 rsyserr(FERROR, errno, "flush of delete-delay buffer");
 152                 delete_during = 0;
 153                 delete_after = !inc_recurse;
 154                 close(deldelay_fd);
 155                 return 0;
 156         }
 157         deldelay_cnt = 0;
 158         return 1;
 159 }
 160
 161 static int remember_delete(struct file_struct *file, const char *fname, int flags)
 162 {
 163         int len;
 164
 165         if (deldelay_cnt == deldelay_size && !flush_delete_delay())
 166                 return 0;
 167
 168         if (flags & DEL_NO_UID_WRITE)
 169                 deldelay_buf[deldelay_cnt++] = '!';
 170
 171         while (1) {
 172                 len = snprintf(deldelay_buf + deldelay_cnt,
 173                                deldelay_size - deldelay_cnt,
 174                                "%x %s%c",
 175                                (int)file->mode, fname, '\0');
 176                 if ((deldelay_cnt += len) <= deldelay_size)
 177                         break;
 178                 deldelay_cnt -= len;
 179                 if (!flush_delete_delay())
 180                         return 0;
 181         }
 182
 183         return 1;
 184 }
 185
 186 static int read_delay_line(char *buf, int *flags_p)
 187 {
 188         static int read_pos = 0;
 189         int j, len, mode;
 190         char *bp, *past_space;
 191
 192         while (1) {
 193                 for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {}
 194                 if (j < deldelay_cnt)
 195                         break;
 196                 if (deldelay_fd < 0) {
 197                         if (j > read_pos)
 198                                 goto invalid_data;
 199                         return -1;
 200                 }
 201                 deldelay_cnt -= read_pos;
 202                 if (deldelay_cnt == deldelay_size)
 203                         goto invalid_data;
 204                 if (deldelay_cnt && read_pos) {
 205                         memmove(deldelay_buf, deldelay_buf + read_pos,
 206                                 deldelay_cnt);
 207                 }
 208                 len = read(deldelay_fd, deldelay_buf + deldelay_cnt,
 209                            deldelay_size - deldelay_cnt);
 210                 if (len == 0) {
 211                         if (deldelay_cnt) {
 212                                 rprintf(FERROR,
 213                                     "ERROR: unexpected EOF in delete-delay file.\n");
 214                         }
 215                         return -1;
 216                 }
 217                 if (len < 0) {
 218                         rsyserr(FERROR, errno,
 219                                 "reading delete-delay file");
 220                         return -1;
 221                 }
 222                 deldelay_cnt += len;
 223                 read_pos = 0;
 224         }
 225
 226         bp = deldelay_buf + read_pos;
 227         if (*bp == '!') {
 228                 bp++;
 229                 *flags_p = DEL_NO_UID_WRITE;
 230         } else
 231                 *flags_p = 0;
 232
 233         if (sscanf(bp, "%x ", &mode) != 1) {
 234           invalid_data:
 235                 rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n");
 236                 return -1;
 237         }
 238         past_space = strchr(bp, ' ') + 1;
 239         len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */
 240         read_pos = j + 1;
 241
 242         if (len > MAXPATHLEN) {
 243                 rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n");
 244                 return -1;
 245         }
 246
 247         /* The caller needs the name in a MAXPATHLEN buffer, so we copy it
 248          * instead of returning a pointer to our buffer. */
 249         memcpy(buf, past_space, len);
 250
 251         return mode;
 252 }
 253
 254 static void do_delayed_deletions(char *delbuf)
 255 {
 256         int mode, flags;
 257
 258         if (deldelay_fd >= 0) {
 259                 if (deldelay_cnt && !flush_delete_delay())
 260                         return;
 261                 lseek(deldelay_fd, 0, 0);
 262         }
 263         while ((mode = read_delay_line(delbuf, &flags)) >= 0)
 264                 delete_item(delbuf, mode, flags | DEL_RECURSE);
 265         if (deldelay_fd >= 0)
 266                 close(deldelay_fd);
 267 }
 268
 269 /* This function is used to implement per-directory deletion, and is used by
 270  * all the --delete-WHEN options.  Note that the fbuf pointer must point to a
 271  * MAXPATHLEN buffer with the name of the directory in it (the functions we
 272  * call will append names onto the end, but the old dir value will be restored
 273  * on exit). */
 274 static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 275 {
 276         static int already_warned = 0;
 277         struct file_list *dirlist;
 278         char delbuf[MAXPATHLEN];
 279         int dlen, i;
 280
 281         if (!fbuf) {
 282                 change_local_filter_dir(NULL, 0, 0);
 283                 return;
 284         }
 285
 286         if (DEBUG_GTE(DEL, 2))
 287                 rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
 288
 289         if (allowed_lull)
 290                 maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH);
 291
 292         if (io_error & IOERR_GENERAL && !ignore_errors) {
 293                 if (already_warned)
 294                         return;
 295                 rprintf(FINFO,
 296                         "IO error encountered -- skipping file deletion\n");
 297                 already_warned = 1;
 298                 return;
 299         }
 300
 301         dlen = strlen(fbuf);
 302         change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
 303
 304         if (one_file_system) {
 305                 if (file->flags & FLAG_TOP_DIR)
 306                         filesystem_dev = *fs_dev;
 307                 else if (filesystem_dev != *fs_dev)
 308                         return;
 309         }
 310
 311         dirlist = get_dirlist(fbuf, dlen, 0);
 312
 313         /* If an item in dirlist is not found in flist, delete it
 314          * from the filesystem. */
 315         for (i = dirlist->used; i--; ) {
 316                 struct file_struct *fp = dirlist->files[i];
 317                 if (!F_IS_ACTIVE(fp))
 318                         continue;
 319                 if (fp->flags & FLAG_MOUNT_DIR && S_ISDIR(fp->mode)) {
 320                         if (INFO_GTE(MOUNT, 1))
 321                                 rprintf(FINFO, "cannot delete mount point: %s\n",
 322                                         f_name(fp, NULL));
 323                         continue;
 324                 }
 325                 /* Here we want to match regardless of file type.  Replacement
 326                  * of a file with one of another type is handled separately by
 327                  * a delete_item call with a DEL_MAKE_ROOM flag. */
 328                 if (flist_find_ignore_dirness(cur_flist, fp) < 0) {
 329                         int flags = DEL_RECURSE;
 330                         if (!(fp->mode & S_IWUSR) && !am_root && fp->flags & FLAG_OWNED_BY_US)
 331                                 flags |= DEL_NO_UID_WRITE;
 332                         f_name(fp, delbuf);
 333                         if (delete_during == 2) {
 334                                 if (!remember_delete(fp, delbuf, flags))
 335                                         break;
 336                         } else
 337                                 delete_item(delbuf, fp->mode, flags);
 338                 }
 339         }
 340
 341         flist_free(dirlist);
 342 }
 343
 344 /* This deletes any files on the receiving side that are not present on the
 345  * sending side.  This is used by --delete-before and --delete-after. */
 346 static void do_delete_pass(void)
 347 {
 348         char fbuf[MAXPATHLEN];
 349         STRUCT_STAT st;
 350         int j;
 351
 352         /* dry_run is incremented when the destination doesn't exist yet. */
 353         if (dry_run > 1 || list_only)
 354                 return;
 355
 356         for (j = 0; j < cur_flist->used; j++) {
 357                 struct file_struct *file = cur_flist->sorted[j];
 358
 359                 f_name(file, fbuf);
 360
 361                 if (!(file->flags & FLAG_CONTENT_DIR)) {
 362                         change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(file));
 363                         continue;
 364                 }
 365
 366                 if (DEBUG_GTE(DEL, 1) && file->flags & FLAG_TOP_DIR)
 367                         rprintf(FINFO, "deleting in %s\n", fbuf);
 368
 369                 if (link_stat(fbuf, &st, keep_dirlinks) < 0
 370                  || !S_ISDIR(st.st_mode))
 371                         continue;
 372
 373                 delete_in_dir(fbuf, file, &st.st_dev);
 374         }
 375         delete_in_dir(NULL, NULL, &dev_zero);
 376
 377         if (INFO_GTE(FLIST, 2) && !am_server)
 378                 rprintf(FINFO, "                    \r");
 379 }
 380
 381 static inline int time_differs(struct file_struct *file, stat_x *sxp)
 382 {
 383         return cmp_time(sxp->st.st_mtime, file->modtime);
 384 }
 385
 386 static inline int perms_differ(struct file_struct *file, stat_x *sxp)
 387 {
 388         if (preserve_perms)
 389                 return !BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS);
 390
 391         if (preserve_executability)
 392                 return (sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0);
 393
 394         return 0;
 395 }
 396
 397 static inline int ownership_differs(struct file_struct *file, stat_x *sxp)
 398 {
 399         if (am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file))
 400                 return 1;
 401
 402         if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) && sxp->st.st_gid != (gid_t)F_GROUP(file))
 403                 return 1;
 404
 405         return 0;
 406 }
 407
 408 #ifdef SUPPORT_ACLS
 409 static inline int acls_differ(const char *fname, struct file_struct *file, stat_x *sxp)
 410 {
 411         if (preserve_acls) {
 412                 if (!ACL_READY(*sxp))
 413                         get_acl(fname, sxp);
 414                 if (set_acl(NULL, file, sxp, file->mode))
 415                         return 1;
 416         }
 417
 418         return 0;
 419 }
 420 #endif
 421
 422 #ifdef SUPPORT_XATTRS
 423 static inline int xattrs_differ(const char *fname, struct file_struct *file, stat_x *sxp)
 424 {
 425         if (preserve_xattrs) {
 426                 if (!XATTR_READY(*sxp))
 427                         get_xattr(fname, sxp);
 428                 if (xattr_diff(file, sxp, 0))
 429                         return 1;
 430         }
 431
 432         return 0;
 433 }
 434 #endif
 435
 436 int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp)
 437 {
 438         if (S_ISLNK(file->mode)) {
 439 #ifdef CAN_SET_SYMLINK_TIMES
 440                 if (preserve_times & PRESERVE_LINK_TIMES && time_differs(file, sxp))
 441                         return 0;
 442 #endif
 443 #ifdef CAN_CHMOD_SYMLINK
 444                 if (perms_differ(file, sxp))
 445                         return 0;
 446 #endif
 447 #ifdef CAN_CHOWN_SYMLINK
 448                 if (ownership_differs(file, sxp))
 449                         return 0;
 450 #endif
 451 #if defined SUPPORT_ACLS && 0 /* no current symlink-ACL support */
 452                 if (acls_differ(fname, file, sxp))
 453                         return 0;
 454 #endif
 455 #if defined SUPPORT_XATTRS && !defined NO_SYMLINK_XATTRS
 456                 if (xattrs_differ(fname, file, sxp))
 457                         return 0;
 458 #endif
 459         } else {
 460                 if (preserve_times && time_differs(file, sxp))
 461                         return 0;
 462                 if (perms_differ(file, sxp))
 463                         return 0;
 464                 if (ownership_differs(file, sxp))
 465                         return 0;
 466 #ifdef SUPPORT_ACLS
 467                 if (acls_differ(fname, file, sxp))
 468                         return 0;
 469 #endif
 470 #ifdef SUPPORT_XATTRS
 471                 if (xattrs_differ(fname, file, sxp))
 472                         return 0;
 473 #endif
 474         }
 475
 476         return 1;
 477 }
 478
 479 void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret,
 480              stat_x *sxp, int32 iflags, uchar fnamecmp_type,
 481              const char *xname)
 482 {
 483         if (statret >= 0) { /* A from-dest-dir statret can == 1! */
 484                 int keep_time = !preserve_times ? 0
 485                     : S_ISDIR(file->mode) ? preserve_times & PRESERVE_DIR_TIMES
 486                     : S_ISLNK(file->mode) ? preserve_times & PRESERVE_LINK_TIMES
 487                     : 1;
 488
 489                 if (S_ISREG(file->mode) && F_LENGTH(file) != sxp->st.st_size)
 490                         iflags |= ITEM_REPORT_SIZE;
 491                 if (file->flags & FLAG_TIME_FAILED) { /* symlinks only */
 492                         if (iflags & ITEM_LOCAL_CHANGE)
 493                                 iflags |= symlink_timeset_failed_flags;
 494                 } else if (keep_time
 495                  ? cmp_time(file->modtime, sxp->st.st_mtime) != 0
 496                  : iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !(iflags & ITEM_MATCHED)
 497                   && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
 498                         iflags |= ITEM_REPORT_TIME;
 499 #if !defined HAVE_LCHMOD && !defined HAVE_SETATTRLIST
 500                 if (S_ISLNK(file->mode)) {
 501                         ;
 502                 } else
 503 #endif
 504                 if (preserve_perms) {
 505                         if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
 506                                 iflags |= ITEM_REPORT_PERMS;
 507                 } else if (preserve_executability
 508                  && ((sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0)))
 509                         iflags |= ITEM_REPORT_PERMS;
 510                 if (uid_ndx && am_root && (uid_t)F_OWNER(file) != sxp->st.st_uid)
 511                         iflags |= ITEM_REPORT_OWNER;
 512                 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
 513                     && sxp->st.st_gid != (gid_t)F_GROUP(file))
 514                         iflags |= ITEM_REPORT_GROUP;
 515 #ifdef SUPPORT_ACLS
 516                 if (preserve_acls && !S_ISLNK(file->mode)) {
 517                         if (!ACL_READY(*sxp))
 518                                 get_acl(fnamecmp, sxp);
 519                         if (set_acl(NULL, file, sxp, file->mode))
 520                                 iflags |= ITEM_REPORT_ACL;
 521                 }
 522 #endif
 523 #ifdef SUPPORT_XATTRS
 524                 if (preserve_xattrs) {
 525                         if (!XATTR_READY(*sxp))
 526                                 get_xattr(fnamecmp, sxp);
 527                         if (xattr_diff(file, sxp, 1))
 528                                 iflags |= ITEM_REPORT_XATTR;
 529                 }
 530 #endif
 531         } else {
 532 #ifdef SUPPORT_XATTRS
 533                 if (preserve_xattrs && xattr_diff(file, NULL, 1))
 534                         iflags |= ITEM_REPORT_XATTR;
 535 #endif
 536                 iflags |= ITEM_IS_NEW;
 537         }
 538
 539         iflags &= 0xffff;
 540         if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || INFO_GTE(NAME, 2)
 541           || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) {
 542                 if (protocol_version >= 29) {
 543                         if (ndx >= 0)
 544                                 write_ndx(sock_f_out, ndx);
 545                         write_shortint(sock_f_out, iflags);
 546                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 547                                 write_byte(sock_f_out, fnamecmp_type);
 548                         if (iflags & ITEM_XNAME_FOLLOWS)
 549                                 write_vstring(sock_f_out, xname, strlen(xname));
 550 #ifdef SUPPORT_XATTRS
 551                         if (preserve_xattrs && do_xfers
 552                          && iflags & (ITEM_REPORT_XATTR|ITEM_TRANSFER)) {
 553                                 int fd = iflags & ITEM_REPORT_XATTR
 554                                       && (protocol_version < 31 || !BITS_SET(iflags, ITEM_XNAME_FOLLOWS|ITEM_LOCAL_CHANGE))
 555                                        ? sock_f_out : -1;
 556                                 send_xattr_request(NULL, file, fd);
 557                         }
 558 #endif
 559                 } else if (ndx >= 0) {
 560                         enum logcode code = logfile_format_has_i ? FINFO : FCLIENT;
 561                         log_item(code, file, iflags, xname);
 562                 }
 563         }
 564 }
 565
 566
 567 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 568 int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 569 {
 570         if (st->st_size != F_LENGTH(file))
 571                 return 0;
 572
 573         /* if always checksum is set then we use the checksum instead
 574            of the file time to determine whether to sync */
 575         if (always_checksum > 0 && S_ISREG(st->st_mode)) {
 576                 char sum[MAX_DIGEST_LEN];
 577                 file_checksum(fn, sum, st->st_size);
 578                 return memcmp(sum, F_SUM(file), checksum_len) == 0;
 579         }
 580
 581         if (size_only > 0)
 582                 return 1;
 583
 584         if (ignore_times)
 585                 return 0;
 586
 587         return cmp_time(st->st_mtime, file->modtime) == 0;
 588 }
 589
 590
 591 /*
 592  * set (initialize) the size entries in the per-file sum_struct
 593  * calculating dynamic block and checksum sizes.
 594  *
 595  * This is only called from generate_and_send_sums() but is a separate
 596  * function to encapsulate the logic.
 597  *
 598  * The block size is a rounded square root of file length.
 599  *
 600  * The checksum size is determined according to:
 601  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 602  * provided by Donovan Baarda which gives a probability of rsync
 603  * algorithm corrupting data and falling back using the whole md4
 604  * checksums.
 605  *
 606  * This might be made one of several selectable heuristics.
 607  */
 608 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 609 {
 610         int32 blength;
 611         int s2length;
 612         int64 l;
 613
 614         if (len < 0) {
 615                 /* The file length overflowed our int64 var, so we can't process this file. */
 616                 sum->count = -1; /* indicate overflow error */
 617                 return;
 618         }
 619
 620         if (block_size)
 621                 blength = block_size;
 622         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 623                 blength = BLOCK_SIZE;
 624         else {
 625                 int32 max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
 626                 int32 c;
 627                 int cnt;
 628                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 629                 if (c < 0 || c >= max_blength)
 630                         blength = max_blength;
 631                 else {
 632                     blength = 0;
 633                     do {
 634                             blength |= c;
 635                             if (len < (int64)blength * blength)
 636                                     blength &= ~c;
 637                             c >>= 1;
 638                     } while (c >= 8);   /* round to multiple of 8 */
 639                     blength = MAX(blength, BLOCK_SIZE);
 640                 }
 641         }
 642
 643         if (protocol_version < 27) {
 644                 s2length = csum_length;
 645         } else if (csum_length == SUM_LENGTH) {
 646                 s2length = SUM_LENGTH;
 647         } else {
 648                 int32 c;
 649                 int b = BLOCKSUM_BIAS;
 650                 for (l = len; l >>= 1; b += 2) {}
 651                 for (c = blength; (c >>= 1) && b; b--) {}
 652                 /* add a bit, subtract rollsum, round up. */
 653                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 654                 s2length = MAX(s2length, csum_length);
 655                 s2length = MIN(s2length, SUM_LENGTH);
 656         }
 657
 658         sum->flength    = len;
 659         sum->blength    = blength;
 660         sum->s2length   = s2length;
 661         sum->remainder  = (int32)(len % blength);
 662         sum->count      = (int32)(l = (len / blength) + (sum->remainder != 0));
 663
 664         if ((int64)sum->count != l)
 665                 sum->count = -1;
 666
 667         if (sum->count && DEBUG_GTE(DELTASUM, 2)) {
 668                 rprintf(FINFO,
 669                         "count=%s rem=%ld blength=%ld s2length=%d flength=%s\n",
 670                         big_num(sum->count), (long)sum->remainder, (long)sum->blength,
 671                         sum->s2length, big_num(sum->flength));
 672         }
 673 }
 674
 675
 676 /*
 677  * Generate and send a stream of signatures/checksums that describe a buffer
 678  *
 679  * Generate approximately one checksum every block_len bytes.
 680  */
 681 static int generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 682 {
 683         int32 i;
 684         struct map_struct *mapbuf;
 685         struct sum_struct sum;
 686         OFF_T offset = 0;
 687
 688         sum_sizes_sqroot(&sum, len);
 689         if (sum.count < 0)
 690                 return -1;
 691         write_sum_head(f_out, &sum);
 692
 693         if (append_mode > 0 && f_copy < 0)
 694                 return 0;
 695
 696         if (len > 0)
 697                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 698         else
 699                 mapbuf = NULL;
 700
 701         for (i = 0; i < sum.count; i++) {
 702                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 703                 char *map = map_ptr(mapbuf, offset, n1);
 704                 char sum2[SUM_LENGTH];
 705                 uint32 sum1;
 706
 707                 len -= n1;
 708                 offset += n1;
 709
 710                 if (f_copy >= 0) {
 711                         full_write(f_copy, map, n1);
 712                         if (append_mode > 0)
 713                                 continue;
 714                 }
 715
 716                 sum1 = get_checksum1(map, n1);
 717                 get_checksum2(map, n1, sum2);
 718
 719                 if (DEBUG_GTE(DELTASUM, 3)) {
 720                         rprintf(FINFO,
 721                                 "chunk[%s] offset=%s len=%ld sum1=%08lx\n",
 722                                 big_num(i), big_num(offset - n1), (long)n1,
 723                                 (unsigned long)sum1);
 724                 }
 725                 write_int(f_out, sum1);
 726                 write_buf(f_out, sum2, sum.s2length);
 727         }
 728
 729         if (mapbuf)
 730                 unmap_file(mapbuf);
 731
 732         return 0;
 733 }
 734
 735
 736 /* Try to find a filename in the same dir as "fname" with a similar name. */
 737 static struct file_struct *find_fuzzy(struct file_struct *file, struct file_list *dirlist_array[], uchar *fnamecmp_type_ptr)
 738 {
 739         int fname_len, fname_suf_len;
 740         const char *fname_suf, *fname = file->basename;
 741         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 742         int i, j;
 743         struct file_struct *lowest_fp = NULL;
 744
 745         fname_len = strlen(fname);
 746         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 747
 748         /* Try to find an exact size+mtime match first. */
 749         for (i = 0; i < fuzzy_basis; i++) {
 750                 struct file_list *dirlist = dirlist_array[i];
 751
 752                 if (!dirlist)
 753                         continue;
 754
 755                 for (j = 0; j < dirlist->used; j++) {
 756                         struct file_struct *fp = dirlist->files[j];
 757
 758                         if (!S_ISREG(fp->mode) || !F_LENGTH(fp) || fp->flags & FLAG_FILE_SENT)
 759                                 continue;
 760
 761                         if (F_LENGTH(fp) == F_LENGTH(file) && cmp_time(fp->modtime, file->modtime) == 0) {
 762                                 if (DEBUG_GTE(FUZZY, 2))
 763                                         rprintf(FINFO, "fuzzy size/modtime match for %s\n", f_name(fp, NULL));
 764                                 *fnamecmp_type_ptr = FNAMECMP_FUZZY + i;
 765                                 return fp;
 766                         }
 767
 768                 }
 769         }
 770
 771         for (i = 0; i < fuzzy_basis; i++) {
 772                 struct file_list *dirlist = dirlist_array[i];
 773
 774                 if (!dirlist)
 775                         continue;
 776
 777                 for (j = 0; j < dirlist->used; j++) {
 778                         struct file_struct *fp = dirlist->files[j];
 779                         const char *suf, *name;
 780                         int len, suf_len;
 781                         uint32 dist;
 782
 783                         if (!S_ISREG(fp->mode) || !F_LENGTH(fp) || fp->flags & FLAG_FILE_SENT)
 784                                 continue;
 785
 786                         name = fp->basename;
 787                         len = strlen(name);
 788                         suf = find_filename_suffix(name, len, &suf_len);
 789
 790                         dist = fuzzy_distance(name, len, fname, fname_len);
 791                         /* Add some extra weight to how well the suffixes match. */
 792                         dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len) * 10;
 793                         if (DEBUG_GTE(FUZZY, 2)) {
 794                                 rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 795                                         f_name(fp, NULL), (int)(dist>>16), (int)(dist&0xFFFF));
 796                         }
 797                         if (dist <= lowest_dist) {
 798                                 lowest_dist = dist;
 799                                 lowest_fp = fp;
 800                                 *fnamecmp_type_ptr = FNAMECMP_FUZZY + i;
 801                         }
 802                 }
 803         }
 804
 805         return lowest_fp;
 806 }
 807
 808 /* Copy a file found in our --copy-dest handling. */
 809 static int copy_altdest_file(const char *src, const char *dest, struct file_struct *file)
 810 {
 811         char buf[MAXPATHLEN];
 812         const char *copy_to, *partialptr;
 813         int save_preserve_xattrs = preserve_xattrs;
 814         int ok, fd_w;
 815
 816         if (inplace) {
 817                 /* Let copy_file open the destination in place. */
 818                 fd_w = -1;
 819                 copy_to = dest;
 820         } else {
 821                 fd_w = open_tmpfile(buf, dest, file);
 822                 if (fd_w < 0)
 823                         return -1;
 824                 copy_to = buf;
 825         }
 826         cleanup_set(copy_to, NULL, NULL, -1, -1);
 827         if (copy_file(src, copy_to, fd_w, file->mode) < 0) {
 828                 if (INFO_GTE(COPY, 1)) {
 829                         rsyserr(FINFO, errno, "copy_file %s => %s",
 830                                 full_fname(src), copy_to);
 831                 }
 832                 /* Try to clean up. */
 833                 unlink(copy_to);
 834                 cleanup_disable();
 835                 return -1;
 836         }
 837         partialptr = partial_dir ? partial_dir_fname(dest) : NULL;
 838         preserve_xattrs = 0; /* xattrs were copied with file */
 839         ok = finish_transfer(dest, copy_to, src, partialptr, file, 1, 0);
 840         preserve_xattrs = save_preserve_xattrs;
 841         cleanup_disable();
 842         return ok ? 0 : -1;
 843 }
 844
 845 /* This is only called for regular files.  We return -2 if we've finished
 846  * handling the file, -1 if no dest-linking occurred, or a non-negative
 847  * value if we found an alternate basis file.  If we're called with the
 848  * find_exact_for_existing flag, the destination file already exists, so
 849  * we only try to find an exact alt-dest match.  In this case, the returns
 850  * can be -2 & -1 (both as above) as well as -3, which means that we
 851  * removed the dest file but failed to create a hard link for it. */
 852 static int try_dests_reg(struct file_struct *file, char *fname, int ndx,
 853                          char *cmpbuf, stat_x *sxp, int find_exact_for_existing,
 854                          int itemizing, enum logcode code)
 855 {
 856         int best_match = -1;
 857         int match_level = 0;
 858         int j = 0;
 859
 860         do {
 861                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
 862                 if (link_stat(cmpbuf, &sxp->st, 0) < 0 || !S_ISREG(sxp->st.st_mode))
 863                         continue;
 864                 switch (match_level) {
 865                 case 0:
 866                         best_match = j;
 867                         match_level = 1;
 868                         /* FALL THROUGH */
 869                 case 1:
 870                         if (!unchanged_file(cmpbuf, file, &sxp->st))
 871                                 continue;
 872                         best_match = j;
 873                         match_level = 2;
 874                         /* FALL THROUGH */
 875                 case 2:
 876                         if (!unchanged_attrs(cmpbuf, file, sxp))
 877                                 continue;
 878                         best_match = j;
 879                         match_level = 3;
 880                         break;
 881                 }
 882                 break;
 883         } while (basis_dir[++j] != NULL);
 884
 885         if (!match_level)
 886                 return -1;
 887
 888         if (j != best_match) {
 889                 j = best_match;
 890                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
 891                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
 892                         return -1;
 893         }
 894
 895         if (match_level == 3 && !copy_dest) {
 896                 if (find_exact_for_existing) {
 897                         if (do_unlink(fname) < 0 && errno != ENOENT)
 898                                 return -1;
 899                 }
 900 #ifdef SUPPORT_HARD_LINKS
 901                 if (link_dest) {
 902                         if (!hard_link_one(file, fname, cmpbuf, 1)) {
 903                                 if (find_exact_for_existing)
 904                                         return -3;
 905                                 goto try_a_copy;
 906                         }
 907                         if (preserve_hard_links && F_IS_HLINKED(file))
 908                                 finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, j);
 909                         if (!maybe_ATTRS_REPORT && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) {
 910                                 itemize(cmpbuf, file, ndx, 1, sxp,
 911                                         ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
 912                                         0, "");
 913                         }
 914                 } else
 915 #endif
 916                 {
 917                         if (itemizing)
 918                                 itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL);
 919                 }
 920                 if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT)
 921                         rprintf(FCLIENT, "%s is uptodate\n", fname);
 922                 return -2;
 923         }
 924
 925         if (find_exact_for_existing)
 926                 return -1;
 927
 928         if (match_level >= 2) {
 929 #ifdef SUPPORT_HARD_LINKS
 930           try_a_copy: /* Copy the file locally. */
 931 #endif
 932                 if (!dry_run && copy_altdest_file(cmpbuf, fname, file) < 0)
 933                         return -1;
 934                 if (itemizing)
 935                         itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL);
 936                 if (maybe_ATTRS_REPORT
 937                  && ((!itemizing && INFO_GTE(NAME, 1) && match_level == 2)
 938                   || (INFO_GTE(NAME, 2) && match_level == 3))) {
 939                         code = match_level == 3 ? FCLIENT : FINFO;
 940                         rprintf(code, "%s%s\n", fname,
 941                                 match_level == 3 ? " is uptodate" : "");
 942                 }
 943 #ifdef SUPPORT_HARD_LINKS
 944                 if (preserve_hard_links && F_IS_HLINKED(file))
 945                         finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, -1);
 946 #endif
 947                 return -2;
 948         }
 949
 950         return FNAMECMP_BASIS_DIR_LOW + j;
 951 }
 952
 953 /* This is only called for non-regular files.  We return -2 if we've finished
 954  * handling the file, or -1 if no dest-linking occurred, or a non-negative
 955  * value if we found an alternate basis file. */
 956 static int try_dests_non(struct file_struct *file, char *fname, int ndx,
 957                          char *cmpbuf, stat_x *sxp, int itemizing,
 958                          enum logcode code)
 959 {
 960         int best_match = -1;
 961         int match_level = 0;
 962         enum nonregtype type;
 963         uint32 *devp;
 964 #ifdef SUPPORT_LINKS
 965         char lnk[MAXPATHLEN];
 966         int len;
 967 #endif
 968         int j = 0;
 969
 970 #ifndef SUPPORT_LINKS
 971         if (S_ISLNK(file->mode))
 972                 return -1;
 973 #endif
 974         if (S_ISDIR(file->mode)) {
 975                 type = TYPE_DIR;
 976         } else if (IS_SPECIAL(file->mode))
 977                 type = TYPE_SPECIAL;
 978         else if (IS_DEVICE(file->mode))
 979                 type = TYPE_DEVICE;
 980 #ifdef SUPPORT_LINKS
 981         else if (S_ISLNK(file->mode))
 982                 type = TYPE_SYMLINK;
 983 #endif
 984         else {
 985                 rprintf(FERROR,
 986                         "internal: try_dests_non() called with invalid mode (%o)\n",
 987                         (int)file->mode);
 988                 exit_cleanup(RERR_UNSUPPORTED);
 989         }
 990
 991         do {
 992                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
 993                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
 994                         continue;
 995                 switch (type) {
 996                 case TYPE_DIR:
 997                         if (!S_ISDIR(sxp->st.st_mode))
 998                                 continue;
 999                         break;
1000                 case TYPE_SPECIAL:
1001                         if (!IS_SPECIAL(sxp->st.st_mode))
1002                                 continue;
1003                         break;
1004                 case TYPE_DEVICE:
1005                         if (!IS_DEVICE(sxp->st.st_mode))
1006                                 continue;
1007                         break;
1008                 case TYPE_SYMLINK:
1009 #ifdef SUPPORT_LINKS
1010                         if (!S_ISLNK(sxp->st.st_mode))
1011                                 continue;
1012                         break;
1013 #else
1014                         return -1;
1015 #endif
1016                 }
1017                 if (match_level < 1) {
1018                         match_level = 1;
1019                         best_match = j;
1020                 }
1021                 switch (type) {
1022                 case TYPE_DIR:
1023                 case TYPE_SPECIAL:
1024                         break;
1025                 case TYPE_DEVICE:
1026                         devp = F_RDEV_P(file);
1027                         if (sxp->st.st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)))
1028                                 continue;
1029                         break;
1030                 case TYPE_SYMLINK:
1031 #ifdef SUPPORT_LINKS
1032                         if ((len = do_readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0)
1033                                 continue;
1034                         lnk[len] = '\0';
1035                         if (strcmp(lnk, F_SYMLINK(file)) != 0)
1036                                 continue;
1037                         break;
1038 #else
1039                         return -1;
1040 #endif
1041                 }
1042                 if (match_level < 2) {
1043                         match_level = 2;
1044                         best_match = j;
1045                 }
1046                 if (unchanged_attrs(cmpbuf, file, sxp)) {
1047                         match_level = 3;
1048                         best_match = j;
1049                         break;
1050                 }
1051         } while (basis_dir[++j] != NULL);
1052
1053         if (!match_level)
1054                 return -1;
1055
1056         if (j != best_match) {
1057                 j = best_match;
1058                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1059                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1060                         return -1;
1061         }
1062
1063         if (match_level == 3) {
1064 #ifdef SUPPORT_HARD_LINKS
1065                 if (link_dest
1066 #ifndef CAN_HARDLINK_SYMLINK
1067                  && !S_ISLNK(file->mode)
1068 #endif
1069 #ifndef CAN_HARDLINK_SPECIAL
1070                  && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode)
1071 #endif
1072                  && !S_ISDIR(file->mode)) {
1073                         if (do_link(cmpbuf, fname) < 0) {
1074                                 rsyserr(FERROR_XFER, errno,
1075                                         "failed to hard-link %s with %s",
1076                                         cmpbuf, fname);
1077                                 return j;
1078                         }
1079                         if (preserve_hard_links && F_IS_HLINKED(file))
1080                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1081                 } else
1082 #endif
1083                         match_level = 2;
1084                 if (itemizing && stdout_format_has_i
1085                  && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) {
1086                         int chg = compare_dest && type != TYPE_DIR ? 0
1087                             : ITEM_LOCAL_CHANGE + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0);
1088                         char *lp = match_level == 3 ? "" : NULL;
1089                         itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp);
1090                 }
1091                 if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT) {
1092                         rprintf(FCLIENT, "%s%s is uptodate\n",
1093                                 fname, type == TYPE_DIR ? "/" : "");
1094                 }
1095                 return -2;
1096         }
1097
1098         return j;
1099 }
1100
1101 static void list_file_entry(struct file_struct *f)
1102 {
1103         char permbuf[PERMSTRING_SIZE];
1104         int64 len;
1105         int colwidth = human_readable ? 14 : 11;
1106
1107         if (!F_IS_ACTIVE(f)) {
1108                 /* this can happen if duplicate names were removed */
1109                 return;
1110         }
1111
1112         permstring(permbuf, f->mode);
1113         len = F_LENGTH(f);
1114
1115         /* TODO: indicate '+' if the entry has an ACL. */
1116
1117 #ifdef SUPPORT_LINKS
1118         if (preserve_links && S_ISLNK(f->mode)) {
1119                 rprintf(FINFO, "%s %*s %s %s -> %s\n",
1120                         permbuf, colwidth, human_num(len),
1121                         timestring(f->modtime), f_name(f, NULL),
1122                         F_SYMLINK(f));
1123         } else
1124 #endif
1125         if (missing_args == 2 && f->mode == 0) {
1126                 rprintf(FINFO, "%-*s %s\n",
1127                         colwidth + 31, "*missing",
1128                         f_name(f, NULL));
1129         } else {
1130                 rprintf(FINFO, "%s %*s %s %s\n",
1131                         permbuf, colwidth, human_num(len),
1132                         timestring(f->modtime), f_name(f, NULL));
1133         }
1134 }
1135
1136 static int phase = 0;
1137 static int dflt_perms;
1138
1139 static int implied_dirs_are_missing;
1140 /* Helper for recv_generator's skip_dir and dry_missing_dir tests. */
1141 static BOOL is_below(struct file_struct *file, struct file_struct *subtree)
1142 {
1143         return F_DEPTH(file) > F_DEPTH(subtree)
1144                 && (!implied_dirs_are_missing || f_name_has_prefix(file, subtree));
1145 }
1146
1147 /* Acts on the indicated item in cur_flist whose name is fname.  If a dir,
1148  * make sure it exists, and has the right permissions/timestamp info.  For
1149  * all other non-regular files (symlinks, etc.) we create them here.  For
1150  * regular files that have changed, we try to find a basis file and then
1151  * start sending checksums.  The ndx is the file's unique index value.
1152  *
1153  * The fname parameter must point to a MAXPATHLEN buffer!  (e.g it gets
1154  * passed to delete_item(), which can use it during a recursive delete.)
1155  *
1156  * Note that f_out is set to -1 when doing final directory-permission and
1157  * modification-time repair. */
1158 static void recv_generator(char *fname, struct file_struct *file, int ndx,
1159                            int itemizing, enum logcode code, int f_out)
1160 {
1161         static const char *parent_dirname = "";
1162         /* Missing dir not created due to --dry-run; will still be scanned. */
1163         static struct file_struct *dry_missing_dir = NULL;
1164         /* Missing dir whose contents are skipped altogether due to
1165          * --ignore-non-existing, daemon exclude, or mkdir failure. */
1166         static struct file_struct *skip_dir = NULL;
1167         static struct file_list *fuzzy_dirlist[MAX_BASIS_DIRS+1];
1168         static int need_fuzzy_dirlist = 0;
1169         struct file_struct *fuzzy_file = NULL;
1170         int fd = -1, f_copy = -1;
1171         stat_x sx, real_sx;
1172         STRUCT_STAT partial_st;
1173         struct file_struct *back_file = NULL;
1174         int statret, real_ret, stat_errno;
1175         char *fnamecmp, *partialptr, *backupptr = NULL;
1176         char fnamecmpbuf[MAXPATHLEN];
1177         uchar fnamecmp_type;
1178         int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0;
1179         int is_dir = !S_ISDIR(file->mode) ? 0
1180                    : inc_recurse && ndx != cur_flist->ndx_start - 1 ? -1
1181                    : 1;
1182
1183         if (DEBUG_GTE(GENR, 1))
1184                 rprintf(FINFO, "recv_generator(%s,%d)\n", fname, ndx);
1185
1186         if (list_only) {
1187                 if (is_dir < 0
1188                  || (is_dir && !implied_dirs && file->flags & FLAG_IMPLIED_DIR))
1189                         return;
1190                 list_file_entry(file);
1191                 return;
1192         }
1193
1194         if (skip_dir) {
1195                 if (is_below(file, skip_dir)) {
1196                         if (is_dir)
1197                                 file->flags |= FLAG_MISSING_DIR;
1198 #ifdef SUPPORT_HARD_LINKS
1199                         else if (F_IS_HLINKED(file))
1200                                 handle_skipped_hlink(file, itemizing, code, f_out);
1201 #endif
1202                         return;
1203                 }
1204                 skip_dir = NULL;
1205         }
1206
1207         init_stat_x(&sx);
1208         if (daemon_filter_list.head && (*fname != '.' || fname[1])) {
1209                 if (check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
1210                         if (is_dir < 0)
1211                                 return;
1212 #ifdef SUPPORT_HARD_LINKS
1213                         if (F_IS_HLINKED(file))
1214                                 handle_skipped_hlink(file, itemizing, code, f_out);
1215 #endif
1216                         rprintf(FERROR_XFER,
1217                                 "ERROR: daemon refused to receive %s \"%s\"\n",
1218                                 is_dir ? "directory" : "file", fname);
1219                         if (is_dir)
1220                                 goto skipping_dir_contents;
1221                         return;
1222                 }
1223         }
1224
1225         if (dry_run > 1 || (dry_missing_dir && is_below(file, dry_missing_dir))) {
1226                 int i;
1227           parent_is_dry_missing:
1228                 for (i = 0; i < fuzzy_basis; i++) {
1229                         if (fuzzy_dirlist[i]) {
1230                                 flist_free(fuzzy_dirlist[i]);
1231                                 fuzzy_dirlist[i] = NULL;
1232                         }
1233                 }
1234                 parent_dirname = "";
1235                 statret = -1;
1236                 stat_errno = ENOENT;
1237         } else {
1238                 const char *dn = file->dirname ? file->dirname : ".";
1239                 dry_missing_dir = NULL;
1240                 if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) {
1241                         if (relative_paths && !implied_dirs
1242                          && do_stat(dn, &sx.st) < 0) {
1243                                 if (dry_run)
1244                                         goto parent_is_dry_missing;
1245                                 if (make_path(fname, MKP_DROP_NAME | MKP_SKIP_SLASH) < 0) {
1246                                         rsyserr(FERROR_XFER, errno,
1247                                                 "recv_generator: mkdir %s failed",
1248                                                 full_fname(dn));
1249                                 }
1250                         }
1251                         if (fuzzy_basis) {
1252                                 int i;
1253                                 for (i = 0; i < fuzzy_basis; i++) {
1254                                         if (fuzzy_dirlist[i]) {
1255                                                 flist_free(fuzzy_dirlist[i]);
1256                                                 fuzzy_dirlist[i] = NULL;
1257                                         }
1258                                 }
1259                                 need_fuzzy_dirlist = 1;
1260                         }
1261 #ifdef SUPPORT_ACLS
1262                         if (!preserve_perms)
1263                                 dflt_perms = default_perms_for_dir(dn);
1264 #endif
1265                 }
1266                 parent_dirname = dn;
1267
1268                 if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
1269                         int i;
1270                         strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
1271                         for (i = 0; i < fuzzy_basis; i++) {
1272                                 if (i && pathjoin(fnamecmpbuf, MAXPATHLEN, basis_dir[i-1], dn) >= MAXPATHLEN)
1273                                         continue;
1274                                 fuzzy_dirlist[i] = get_dirlist(fnamecmpbuf, -1, GDL_IGNORE_FILTER_RULES);
1275                                 if (fuzzy_dirlist[i] && fuzzy_dirlist[i]->used == 0) {
1276                                         flist_free(fuzzy_dirlist[i]);
1277                                         fuzzy_dirlist[i] = NULL;
1278                                 }
1279                         }
1280                         need_fuzzy_dirlist = 0;
1281                 }
1282
1283                 statret = link_stat(fname, &sx.st, keep_dirlinks && is_dir);
1284                 stat_errno = errno;
1285         }
1286
1287         if (missing_args == 2 && file->mode == 0) {
1288                 if (filter_list.head && check_filter(&filter_list, FINFO, fname, is_dir) < 0)
1289                         return;
1290                 if (statret == 0)
1291                         delete_item(fname, sx.st.st_mode, del_opts);
1292                 return;
1293         }
1294
1295         if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) {
1296                 if (is_dir) {
1297                         if (is_dir < 0)
1298                                 return;
1299                         skip_dir = file;
1300                         file->flags |= FLAG_MISSING_DIR;
1301                 }
1302 #ifdef SUPPORT_HARD_LINKS
1303                 else if (F_IS_HLINKED(file))
1304                         handle_skipped_hlink(file, itemizing, code, f_out);
1305 #endif
1306                 if (INFO_GTE(SKIP, 1)) {
1307                         rprintf(FINFO, "not creating new %s \"%s\"\n",
1308                                 is_dir ? "directory" : "file", fname);
1309                 }
1310                 return;
1311         }
1312
1313         if (statret == 0 && !(sx.st.st_mode & S_IWUSR)
1314          && !am_root && sx.st.st_uid == our_uid)
1315                 del_opts |= DEL_NO_UID_WRITE;
1316
1317         if (ignore_existing > 0 && statret == 0
1318          && (!is_dir || !S_ISDIR(sx.st.st_mode))) {
1319                 if (INFO_GTE(SKIP, 1) && is_dir >= 0)
1320                         rprintf(FINFO, "%s exists\n", fname);
1321 #ifdef SUPPORT_HARD_LINKS
1322                 if (F_IS_HLINKED(file))
1323                         handle_skipped_hlink(file, itemizing, code, f_out);
1324 #endif
1325                 goto cleanup;
1326         }
1327
1328         fnamecmp = fname;
1329
1330         if (is_dir) {
1331                 mode_t added_perms;
1332                 if (!implied_dirs && file->flags & FLAG_IMPLIED_DIR)
1333                         goto cleanup;
1334                 if (am_root < 0) {
1335                         /* For --fake-super, the dir must be useable by the copying
1336                          * user, just like it would be for root. */
1337                         added_perms = S_IRUSR|S_IWUSR|S_IXUSR;
1338                 } else
1339                         added_perms = 0;
1340                 if (is_dir < 0) {
1341                         /* In inc_recurse mode we want to make sure any missing
1342                          * directories get created while we're still processing
1343                          * the parent dir (which allows us to touch the parent
1344                          * dir's mtime right away).  We will handle the dir in
1345                          * full later (right before we handle its contents). */
1346                         if (statret == 0
1347                          && (S_ISDIR(sx.st.st_mode)
1348                           || delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0))
1349                                 goto cleanup; /* Any errors get reported later. */
1350                         if (do_mkdir(fname, (file->mode|added_perms) & 0700) == 0)
1351                                 file->flags |= FLAG_DIR_CREATED;
1352                         goto cleanup;
1353                 }
1354                 /* The file to be received is a directory, so we need
1355                  * to prepare appropriately.  If there is already a
1356                  * file of that name and it is *not* a directory, then
1357                  * we need to delete it.  If it doesn't exist, then
1358                  * (perhaps recursively) create it. */
1359                 if (statret == 0 && !S_ISDIR(sx.st.st_mode)) {
1360                         if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0)
1361                                 goto skipping_dir_contents;
1362                         statret = -1;
1363                 }
1364                 if (dry_run && statret != 0) {
1365                         if (!dry_missing_dir)
1366                                 dry_missing_dir = file;
1367                         file->flags |= FLAG_MISSING_DIR;
1368                 }
1369                 init_stat_x(&real_sx);
1370                 real_sx.st = sx.st;
1371                 real_ret = statret;
1372                 if (file->flags & FLAG_DIR_CREATED)
1373                         statret = -1;
1374                 if (!preserve_perms) { /* See comment in non-dir code below. */
1375                         file->mode = dest_mode(file->mode, sx.st.st_mode,
1376                                                dflt_perms, statret == 0);
1377                 }
1378                 if (statret != 0 && basis_dir[0] != NULL) {
1379                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1380                                               itemizing, code);
1381                         if (j == -2) {
1382                                 itemizing = 0;
1383                                 code = FNONE;
1384                                 statret = 1;
1385                         } else if (j >= 0) {
1386                                 statret = 1;
1387                                 fnamecmp = fnamecmpbuf;
1388                         }
1389                 }
1390                 if (itemizing && f_out != -1) {
1391                         itemize(fnamecmp, file, ndx, statret, &sx,
1392                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
1393                 }
1394                 if (real_ret != 0 && do_mkdir(fname,file->mode|added_perms) < 0 && errno != EEXIST) {
1395                         if (!relative_paths || errno != ENOENT
1396                          || make_path(fname, MKP_DROP_NAME | MKP_SKIP_SLASH) < 0
1397                          || (do_mkdir(fname, file->mode|added_perms) < 0 && errno != EEXIST)) {
1398                                 rsyserr(FERROR_XFER, errno,
1399                                         "recv_generator: mkdir %s failed",
1400                                         full_fname(fname));
1401                           skipping_dir_contents:
1402                                 rprintf(FERROR,
1403                                     "*** Skipping any contents from this failed directory ***\n");
1404                                 skip_dir = file;
1405                                 file->flags |= FLAG_MISSING_DIR;
1406                                 goto cleanup;
1407                         }
1408                 }
1409
1410 #ifdef SUPPORT_XATTRS
1411                 if (preserve_xattrs && statret == 1)
1412                         copy_xattrs(fnamecmpbuf, fname);
1413 #endif
1414                 if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0)
1415                     && INFO_GTE(NAME, 1) && code != FNONE && f_out != -1)
1416                         rprintf(code, "%s/\n", fname);
1417
1418                 /* We need to ensure that the dirs in the transfer have both
1419                  * readable and writable permissions during the time we are
1420                  * putting files within them.  This is then restored to the
1421                  * former permissions after the transfer is done. */
1422 #ifdef HAVE_CHMOD
1423                 if (!am_root && (file->mode & S_IRWXU) != S_IRWXU && dir_tweaking) {
1424                         mode_t mode = file->mode | S_IRWXU;
1425                         if (do_chmod(fname, mode) < 0) {
1426                                 rsyserr(FERROR_XFER, errno,
1427                                         "failed to modify permissions on %s",
1428                                         full_fname(fname));
1429                         }
1430                         need_retouch_dir_perms = 1;
1431                 }
1432 #endif
1433
1434                 if (real_ret != 0 && one_file_system)
1435                         real_sx.st.st_dev = filesystem_dev;
1436                 if (inc_recurse) {
1437                         if (one_file_system) {
1438                                 uint32 *devp = F_DIR_DEV_P(file);
1439                                 DEV_MAJOR(devp) = major(real_sx.st.st_dev);
1440                                 DEV_MINOR(devp) = minor(real_sx.st.st_dev);
1441                         }
1442                 }
1443                 else if (delete_during && f_out != -1 && !phase
1444                     && !(file->flags & FLAG_MISSING_DIR)) {
1445                         if (file->flags & FLAG_CONTENT_DIR)
1446                                 delete_in_dir(fname, file, &real_sx.st.st_dev);
1447                         else
1448                                 change_local_filter_dir(fname, strlen(fname), F_DEPTH(file));
1449                 }
1450                 goto cleanup;
1451         }
1452
1453         /* If we're not preserving permissions, change the file-list's
1454          * mode based on the local permissions and some heuristics. */
1455         if (!preserve_perms) {
1456                 int exists = statret == 0 && !S_ISDIR(sx.st.st_mode);
1457                 file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms,
1458                                        exists);
1459         }
1460
1461 #ifdef SUPPORT_HARD_LINKS
1462         if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
1463          && hard_link_check(file, ndx, fname, statret, &sx, itemizing, code))
1464                 goto cleanup;
1465 #endif
1466
1467         if (preserve_links && S_ISLNK(file->mode)) {
1468 #ifdef SUPPORT_LINKS
1469                 const char *sl = F_SYMLINK(file);
1470                 if (safe_symlinks && unsafe_symlink(sl, fname)) {
1471                         if (INFO_GTE(NAME, 1)) {
1472                                 if (solo_file) {
1473                                         /* fname contains the destination path, but we
1474                                          * want to report the source path. */
1475                                         fname = f_name(file, NULL);
1476                                 }
1477                                 rprintf(FINFO,
1478                                         "ignoring unsafe symlink \"%s\" -> \"%s\"\n",
1479                                         fname, sl);
1480                         }
1481                         return;
1482                 }
1483                 if (statret == 0) {
1484                         char lnk[MAXPATHLEN];
1485                         int len;
1486
1487                         if (S_ISLNK(sx.st.st_mode)
1488                          && (len = do_readlink(fname, lnk, MAXPATHLEN-1)) > 0
1489                          && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') {
1490                                 /* The link is pointing to the right place. */
1491                                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1492                                 if (itemizing)
1493                                         itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1494 #if defined SUPPORT_HARD_LINKS && defined CAN_HARDLINK_SYMLINK
1495                                 if (preserve_hard_links && F_IS_HLINKED(file))
1496                                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1497 #endif
1498                                 if (remove_source_files == 1)
1499                                         goto return_with_success;
1500                                 goto cleanup;
1501                         }
1502                 } else if (basis_dir[0] != NULL) {
1503                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1504                                               itemizing, code);
1505                         if (j == -2) {
1506 #ifndef CAN_HARDLINK_SYMLINK
1507                                 if (link_dest) {
1508                                         /* Resort to --copy-dest behavior. */
1509                                 } else
1510 #endif
1511                                 if (!copy_dest)
1512                                         goto cleanup;
1513                                 itemizing = 0;
1514                                 code = FNONE;
1515                         } else if (j >= 0)
1516                                 statret = 1;
1517                 }
1518                 if (atomic_create(file, fname, sl, MAKEDEV(0, 0), &sx, statret == 0 ? DEL_FOR_SYMLINK : 0)) {
1519                         set_file_attrs(fname, file, NULL, NULL, 0);
1520                         if (itemizing) {
1521                                 if (statret == 0 && !S_ISLNK(sx.st.st_mode))
1522                                         statret = -1;
1523                                 itemize(fname, file, ndx, statret, &sx,
1524                                         ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL);
1525                         }
1526                         if (code != FNONE && INFO_GTE(NAME, 1))
1527                                 rprintf(code, "%s -> %s\n", fname, sl);
1528 #ifdef SUPPORT_HARD_LINKS
1529                         if (preserve_hard_links && F_IS_HLINKED(file))
1530                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1531 #endif
1532                         /* This does not check remove_source_files == 1
1533                          * because this is one of the items that the old
1534                          * --remove-sent-files option would remove. */
1535                         if (remove_source_files)
1536                                 goto return_with_success;
1537                 }
1538 #endif
1539                 goto cleanup;
1540         }
1541
1542         if ((am_root && preserve_devices && IS_DEVICE(file->mode))
1543          || (preserve_specials && IS_SPECIAL(file->mode))) {
1544                 dev_t rdev;
1545                 int del_for_flag = 0;
1546                 if (IS_DEVICE(file->mode)) {
1547                         uint32 *devp = F_RDEV_P(file);
1548                         rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1549                 } else
1550                         rdev = 0;
1551                 if (statret == 0) {
1552                         if (IS_DEVICE(file->mode)) {
1553                                 if (!IS_DEVICE(sx.st.st_mode))
1554                                         statret = -1;
1555                                 del_for_flag = DEL_FOR_DEVICE;
1556                         } else {
1557                                 if (!IS_SPECIAL(sx.st.st_mode))
1558                                         statret = -1;
1559                                 del_for_flag = DEL_FOR_SPECIAL;
1560                         }
1561                         if (statret == 0
1562                          && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT)
1563                          && (IS_SPECIAL(sx.st.st_mode) || sx.st.st_rdev == rdev)) {
1564                                 /* The device or special file is identical. */
1565                                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1566                                 if (itemizing)
1567                                         itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1568 #ifdef SUPPORT_HARD_LINKS
1569                                 if (preserve_hard_links && F_IS_HLINKED(file))
1570                                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1571 #endif
1572                                 if (remove_source_files == 1)
1573                                         goto return_with_success;
1574                                 goto cleanup;
1575                         }
1576                 } else if (basis_dir[0] != NULL) {
1577                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1578                                               itemizing, code);
1579                         if (j == -2) {
1580 #ifndef CAN_HARDLINK_SPECIAL
1581                                 if (link_dest) {
1582                                         /* Resort to --copy-dest behavior. */
1583                                 } else
1584 #endif
1585                                 if (!copy_dest)
1586                                         goto cleanup;
1587                                 itemizing = 0;
1588                                 code = FNONE;
1589                         } else if (j >= 0)
1590                                 statret = 1;
1591                 }
1592                 if (DEBUG_GTE(GENR, 1)) {
1593                         rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n",
1594                                 fname, (int)file->mode,
1595                                 (long)major(rdev), (long)minor(rdev));
1596                 }
1597                 if (atomic_create(file, fname, NULL, rdev, &sx, del_for_flag)) {
1598                         set_file_attrs(fname, file, NULL, NULL, 0);
1599                         if (itemizing) {
1600                                 itemize(fname, file, ndx, statret, &sx,
1601                                         ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL);
1602                         }
1603                         if (code != FNONE && INFO_GTE(NAME, 1))
1604                                 rprintf(code, "%s\n", fname);
1605 #ifdef SUPPORT_HARD_LINKS
1606                         if (preserve_hard_links && F_IS_HLINKED(file))
1607                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1608 #endif
1609                         if (remove_source_files == 1)
1610                                 goto return_with_success;
1611                 }
1612                 goto cleanup;
1613         }
1614
1615         if (!S_ISREG(file->mode)) {
1616                 if (solo_file)
1617                         fname = f_name(file, NULL);
1618                 rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname);
1619                 goto cleanup;
1620         }
1621
1622         if (max_size >= 0 && F_LENGTH(file) > max_size) {
1623                 if (INFO_GTE(SKIP, 1)) {
1624                         if (solo_file)
1625                                 fname = f_name(file, NULL);
1626                         rprintf(FINFO, "%s is over max-size\n", fname);
1627                 }
1628                 goto cleanup;
1629         }
1630         if (min_size >= 0 && F_LENGTH(file) < min_size) {
1631                 if (INFO_GTE(SKIP, 1)) {
1632                         if (solo_file)
1633                                 fname = f_name(file, NULL);
1634                         rprintf(FINFO, "%s is under min-size\n", fname);
1635                 }
1636                 goto cleanup;
1637         }
1638
1639         if (update_only > 0 && statret == 0
1640             && cmp_time(sx.st.st_mtime, file->modtime) > 0) {
1641                 if (INFO_GTE(SKIP, 1))
1642                         rprintf(FINFO, "%s is newer\n", fname);
1643 #ifdef SUPPORT_HARD_LINKS
1644                 if (F_IS_HLINKED(file))
1645                         handle_skipped_hlink(file, itemizing, code, f_out);
1646 #endif
1647                 goto cleanup;
1648         }
1649
1650         fnamecmp_type = FNAMECMP_FNAME;
1651
1652         if (statret == 0 && !S_ISREG(sx.st.st_mode)) {
1653                 if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_FILE) != 0)
1654                         goto cleanup;
1655                 statret = -1;
1656                 stat_errno = ENOENT;
1657         }
1658
1659         if (basis_dir[0] != NULL && (statret != 0 || !copy_dest)) {
1660                 int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &sx,
1661                                       statret == 0, itemizing, code);
1662                 if (j == -2) {
1663                         if (remove_source_files == 1)
1664                                 goto return_with_success;
1665                         goto cleanup;
1666                 }
1667                 if (j >= 0) {
1668                         fnamecmp = fnamecmpbuf;
1669                         fnamecmp_type = j;
1670                         statret = 0;
1671                 } else if (j == -3) {
1672                         statret = -1;
1673                         stat_errno = ENOENT;
1674                 }
1675         }
1676
1677         init_stat_x(&real_sx);
1678         real_sx.st = sx.st; /* Don't copy xattr/acl pointers, as they would free wrong. */
1679         real_ret = statret;
1680
1681         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
1682             && link_stat(partialptr, &partial_st, 0) == 0
1683             && S_ISREG(partial_st.st_mode)) {
1684                 if (statret != 0)
1685                         goto prepare_to_open;
1686         } else
1687                 partialptr = NULL;
1688
1689         if (statret != 0 && fuzzy_basis) {
1690                 /* Sets fnamecmp_type to FNAMECMP_FUZZY or above. */
1691                 fuzzy_file = find_fuzzy(file, fuzzy_dirlist, &fnamecmp_type);
1692                 if (fuzzy_file) {
1693                         f_name(fuzzy_file, fnamecmpbuf);
1694                         if (DEBUG_GTE(FUZZY, 1)) {
1695                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
1696                                         fname, fnamecmpbuf);
1697                         }
1698                         sx.st.st_size = F_LENGTH(fuzzy_file);
1699                         statret = 0;
1700                         fnamecmp = fnamecmpbuf;
1701                 }
1702         }
1703
1704         if (statret != 0) {
1705 #ifdef SUPPORT_HARD_LINKS
1706                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1707                         cur_flist->in_progress++;
1708                         goto cleanup;
1709                 }
1710 #endif
1711                 if (stat_errno == ENOENT)
1712                         goto notify_others;
1713                 rsyserr(FERROR_XFER, stat_errno, "recv_generator: failed to stat %s",
1714                         full_fname(fname));
1715                 goto cleanup;
1716         }
1717
1718         if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1719                 ;
1720         else if (fnamecmp_type == FNAMECMP_FUZZY)
1721                 ;
1722         else if (unchanged_file(fnamecmp, file, &sx.st)) {
1723                 if (partialptr) {
1724                         do_unlink(partialptr);
1725                         handle_partial_dir(partialptr, PDIR_DELETE);
1726                 }
1727                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1728                 if (itemizing)
1729                         itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL);
1730 #ifdef SUPPORT_HARD_LINKS
1731                 if (preserve_hard_links && F_IS_HLINKED(file))
1732                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1733 #endif
1734                 if (remove_source_files != 1)
1735                         goto cleanup;
1736           return_with_success:
1737                 if (!dry_run)
1738                         send_msg_int(MSG_SUCCESS, ndx);
1739                 goto cleanup;
1740         }
1741
1742         if (append_mode > 0 && sx.st.st_size >= F_LENGTH(file)) {
1743 #ifdef SUPPORT_HARD_LINKS
1744                 if (F_IS_HLINKED(file))
1745                         handle_skipped_hlink(file, itemizing, code, f_out);
1746 #endif
1747                 goto cleanup;
1748         }
1749
1750   prepare_to_open:
1751         if (partialptr) {
1752                 sx.st = partial_st;
1753                 fnamecmp = partialptr;
1754                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1755                 statret = 0;
1756         }
1757
1758         if (!do_xfers)
1759                 goto notify_others;
1760
1761         if (read_batch || whole_file) {
1762                 if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1763                         if (!(backupptr = get_backup_name(fname)))
1764                                 goto cleanup;
1765                         if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS)))
1766                                 goto pretend_missing;
1767                         if (copy_file(fname, backupptr, -1, back_file->mode) < 0) {
1768                                 unmake_file(back_file);
1769                                 back_file = NULL;
1770                                 goto cleanup;
1771                         }
1772                 }
1773                 goto notify_others;
1774         }
1775
1776         if (fuzzy_dirlist[0]) {
1777                 int j = flist_find(fuzzy_dirlist[0], file);
1778                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1779                         fuzzy_dirlist[0]->files[j]->flags |= FLAG_FILE_SENT;
1780         }
1781
1782         /* open the file */
1783         if ((fd = do_open(fnamecmp, O_RDONLY, 0)) < 0) {
1784                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1785                         full_fname(fnamecmp));
1786           pretend_missing:
1787                 /* pretend the file didn't exist */
1788 #ifdef SUPPORT_HARD_LINKS
1789                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1790                         cur_flist->in_progress++;
1791                         goto cleanup;
1792                 }
1793 #endif
1794                 statret = real_ret = -1;
1795                 goto notify_others;
1796         }
1797
1798         if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1799                 if (!(backupptr = get_backup_name(fname))) {
1800                         close(fd);
1801                         goto cleanup;
1802                 }
1803                 if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) {
1804                         close(fd);
1805                         goto pretend_missing;
1806                 }
1807                 if (robust_unlink(backupptr) && errno != ENOENT) {
1808                         rsyserr(FERROR_XFER, errno, "unlink %s",
1809                                 full_fname(backupptr));
1810                         unmake_file(back_file);
1811                         back_file = NULL;
1812                         close(fd);
1813                         goto cleanup;
1814                 }
1815                 if ((f_copy = do_open(backupptr, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1816                         rsyserr(FERROR_XFER, errno, "open %s", full_fname(backupptr));
1817                         unmake_file(back_file);
1818                         back_file = NULL;
1819                         close(fd);
1820                         goto cleanup;
1821                 }
1822                 fnamecmp_type = FNAMECMP_BACKUP;
1823         }
1824
1825         if (DEBUG_GTE(DELTASUM, 3)) {
1826                 rprintf(FINFO, "gen mapped %s of size %s\n",
1827                         fnamecmp, big_num(sx.st.st_size));
1828         }
1829
1830         if (DEBUG_GTE(DELTASUM, 2))
1831                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1832
1833   notify_others:
1834         if (remove_source_files && !delay_updates && !phase && !dry_run)
1835                 increment_active_files(ndx, itemizing, code);
1836         if (inc_recurse && (!dry_run || write_batch < 0))
1837                 cur_flist->in_progress++;
1838 #ifdef SUPPORT_HARD_LINKS
1839         if (preserve_hard_links && F_IS_HLINKED(file))
1840                 file->flags |= FLAG_FILE_SENT;
1841 #endif
1842         write_ndx(f_out, ndx);
1843         if (itemizing) {
1844                 int iflags = ITEM_TRANSFER;
1845                 if (always_checksum > 0)
1846                         iflags |= ITEM_REPORT_CHANGE;
1847                 if (fnamecmp_type != FNAMECMP_FNAME)
1848                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1849                 if (fnamecmp_type >= FNAMECMP_FUZZY)
1850                         iflags |= ITEM_XNAME_FOLLOWS;
1851                 itemize(fnamecmp, file, -1, real_ret, &real_sx, iflags, fnamecmp_type,
1852                         fuzzy_file ? fuzzy_file->basename : NULL);
1853 #ifdef SUPPORT_ACLS
1854                 if (preserve_acls)
1855                         free_acl(&real_sx);
1856 #endif
1857 #ifdef SUPPORT_XATTRS
1858                 if (preserve_xattrs)
1859                         free_xattr(&real_sx);
1860 #endif
1861         }
1862
1863         if (!do_xfers) {
1864 #ifdef SUPPORT_HARD_LINKS
1865                 if (preserve_hard_links && F_IS_HLINKED(file))
1866                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1867 #endif
1868                 goto cleanup;
1869         }
1870         if (read_batch)
1871                 goto cleanup;
1872
1873         if (statret != 0 || whole_file)
1874                 write_sum_head(f_out, NULL);
1875         else if (sx.st.st_size <= 0) {
1876                 write_sum_head(f_out, NULL);
1877                 close(fd);
1878         } else {
1879                 if (generate_and_send_sums(fd, sx.st.st_size, f_out, f_copy) < 0) {
1880                         rprintf(FWARNING,
1881                             "WARNING: file is too large for checksum sending: %s\n",
1882                             fnamecmp);
1883                         write_sum_head(f_out, NULL);
1884                 }
1885                 close(fd);
1886         }
1887
1888   cleanup:
1889         if (back_file) {
1890                 int save_preserve_xattrs = preserve_xattrs;
1891                 if (f_copy >= 0)
1892                         close(f_copy);
1893 #ifdef SUPPORT_XATTRS
1894                 if (preserve_xattrs) {
1895                         copy_xattrs(fname, backupptr);
1896                         preserve_xattrs = 0;
1897                 }
1898 #endif
1899                 set_file_attrs(backupptr, back_file, NULL, NULL, 0);
1900                 preserve_xattrs = save_preserve_xattrs;
1901                 if (INFO_GTE(BACKUP, 1)) {
1902                         rprintf(FINFO, "backed up %s to %s\n",
1903                                 fname, backupptr);
1904                 }
1905                 unmake_file(back_file);
1906         }
1907
1908 #ifdef SUPPORT_ACLS
1909         if (preserve_acls)
1910                 free_acl(&sx);
1911 #endif
1912 #ifdef SUPPORT_XATTRS
1913         if (preserve_xattrs)
1914                 free_xattr(&sx);
1915 #endif
1916         return;
1917 }
1918
1919 /* If we are replacing an existing hard link, symlink, device, or special file,
1920  * create a temp-name item and rename it into place.  Only a symlink or hard
1921  * link puts a non-NULL value into the lnk arg.  Only a device puts a non-0
1922  * value into the rdev arg.  Specify 0 for the del_for_flag if there is not a
1923  * file to replace.  This returns 1 on success and 0 on failure. */
1924 int atomic_create(struct file_struct *file, char *fname, const char *lnk,
1925                   dev_t rdev, stat_x *sxp, int del_for_flag)
1926 {
1927         char tmpname[MAXPATHLEN];
1928         const char *create_name;
1929         int skip_atomic, dir_in_the_way = del_for_flag && S_ISDIR(sxp->st.st_mode);
1930
1931         if (!del_for_flag || dir_in_the_way || tmpdir || !get_tmpname(tmpname, fname, True))
1932                 skip_atomic = 1;
1933         else
1934                 skip_atomic = 0;
1935
1936         if (del_for_flag) {
1937                 if (make_backups > 0 && !dir_in_the_way) {
1938                         if (!make_backup(fname, skip_atomic))
1939                                 return 0;
1940                 } else if (skip_atomic) {
1941                         int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0;
1942                         if (delete_item(fname, sxp->st.st_mode, del_opts | del_for_flag) != 0)
1943                                 return 0;
1944                 }
1945         }
1946
1947         create_name = skip_atomic ? fname : tmpname;
1948
1949         if (lnk) {
1950 #ifdef SUPPORT_LINKS
1951                 if (S_ISLNK(file->mode)
1952 #ifdef SUPPORT_HARD_LINKS /* The first symlink in a hard-linked cluster is always created. */
1953                  && (!F_IS_HLINKED(file) || file->flags & FLAG_HLINK_FIRST)
1954 #endif
1955                  ) {
1956                         if (do_symlink(lnk, create_name) < 0) {
1957                                 rsyserr(FERROR_XFER, errno, "symlink %s -> \"%s\" failed",
1958                                         full_fname(create_name), lnk);
1959                                 return 0;
1960                         }
1961                 } else
1962 #endif
1963 #ifdef SUPPORT_HARD_LINKS
1964                 if (!hard_link_one(file, create_name, lnk, 0))
1965                         return 0;
1966 #endif
1967         } else {
1968                 if (do_mknod(create_name, file->mode, rdev) < 0) {
1969                         rsyserr(FERROR_XFER, errno, "mknod %s failed",
1970                                 full_fname(create_name));
1971                         return 0;
1972                 }
1973         }
1974
1975         if (!skip_atomic) {
1976                 if (do_rename(tmpname, fname) < 0) {
1977                         rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\" failed",
1978                                 full_fname(tmpname), full_fname(fname));
1979                         do_unlink(tmpname);
1980                         return 0;
1981                 }
1982         }
1983
1984         return 1;
1985 }
1986
1987 #ifdef SUPPORT_HARD_LINKS
1988 static void handle_skipped_hlink(struct file_struct *file, int itemizing,
1989                                  enum logcode code, int f_out)
1990 {
1991         char fbuf[MAXPATHLEN];
1992         int new_last_ndx;
1993         struct file_list *save_flist = cur_flist;
1994
1995         /* If we skip the last item in a chain of links and there was a
1996          * prior non-skipped hard-link waiting to finish, finish it now. */
1997         if ((new_last_ndx = skip_hard_link(file, &cur_flist)) < 0)
1998                 return;
1999
2000         file = cur_flist->files[new_last_ndx - cur_flist->ndx_start];
2001         cur_flist->in_progress--; /* undo prior increment */
2002         f_name(file, fbuf);
2003         recv_generator(fbuf, file, new_last_ndx, itemizing, code, f_out);
2004
2005         cur_flist = save_flist;
2006 }
2007 #endif
2008
2009 static void touch_up_dirs(struct file_list *flist, int ndx)
2010 {
2011         static int counter = 0;
2012         struct file_struct *file;
2013         char *fname;
2014         BOOL fix_dir_perms;
2015         int i, start, end;
2016
2017         if (ndx < 0) {
2018                 start = 0;
2019                 end = flist->used - 1;
2020         } else
2021                 start = end = ndx;
2022
2023         /* Fix any directory permissions that were modified during the
2024          * transfer and/or re-set any tweaked modified-time values. */
2025         for (i = start; i <= end; i++, counter++) {
2026                 file = flist->files[i];
2027                 if (!S_ISDIR(file->mode)
2028                  || (!implied_dirs && file->flags & FLAG_IMPLIED_DIR))
2029                         continue;
2030                 if (DEBUG_GTE(TIME, 2)) {
2031                         fname = f_name(file, NULL);
2032                         rprintf(FINFO, "touch_up_dirs: %s (%d)\n",
2033                                 NS(fname), i);
2034                 }
2035                 /* Be sure not to retouch permissions with --fake-super. */
2036                 fix_dir_perms = !am_root && !(file->mode & S_IWUSR);
2037                 if (!F_IS_ACTIVE(file) || file->flags & FLAG_MISSING_DIR
2038                  || !(need_retouch_dir_times || fix_dir_perms))
2039                         continue;
2040                 fname = f_name(file, NULL);
2041                 if (fix_dir_perms)
2042                         do_chmod(fname, file->mode);
2043                 if (need_retouch_dir_times) {
2044                         STRUCT_STAT st;
2045                         if (link_stat(fname, &st, 0) == 0
2046                          && cmp_time(st.st_mtime, file->modtime) != 0)
2047                                 set_modtime(fname, file->modtime, F_MOD_NSEC(file), file->mode);
2048                 }
2049                 if (counter >= loopchk_limit) {
2050                         if (allowed_lull)
2051                                 maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH);
2052                         else
2053                                 maybe_flush_socket(0);
2054                         counter = 0;
2055                 }
2056         }
2057 }
2058
2059 void check_for_finished_files(int itemizing, enum logcode code, int check_redo)
2060 {
2061         struct file_struct *file;
2062         struct file_list *flist;
2063         char fbuf[MAXPATHLEN];
2064         int ndx;
2065
2066         while (1) {
2067 #ifdef SUPPORT_HARD_LINKS
2068                 if (preserve_hard_links && (ndx = get_hlink_num()) != -1) {
2069                         int send_failed = (ndx == -2);
2070                         if (send_failed)
2071                                 ndx = get_hlink_num();
2072                         flist = flist_for_ndx(ndx, "check_for_finished_files.1");
2073                         file = flist->files[ndx - flist->ndx_start];
2074                         assert(file->flags & FLAG_HLINKED);
2075                         if (send_failed)
2076                                 handle_skipped_hlink(file, itemizing, code, sock_f_out);
2077                         else
2078                                 finish_hard_link(file, f_name(file, fbuf), ndx, NULL, itemizing, code, -1);
2079                         flist->in_progress--;
2080                         continue;
2081                 }
2082 #endif
2083
2084                 if (check_redo && (ndx = get_redo_num()) != -1) {
2085                         OFF_T save_max_size = max_size;
2086                         OFF_T save_min_size = min_size;
2087                         csum_length = SUM_LENGTH;
2088                         max_size = -1;
2089                         min_size = -1;
2090                         ignore_existing = -ignore_existing;
2091                         ignore_non_existing = -ignore_non_existing;
2092                         update_only = -update_only;
2093                         always_checksum = -always_checksum;
2094                         size_only = -size_only;
2095                         append_mode = -append_mode;
2096                         make_backups = -make_backups; /* avoid dup backup w/inplace */
2097                         ignore_times++;
2098
2099                         flist = cur_flist;
2100                         cur_flist = flist_for_ndx(ndx, "check_for_finished_files.2");
2101
2102                         file = cur_flist->files[ndx - cur_flist->ndx_start];
2103                         if (solo_file)
2104                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2105                         else
2106                                 f_name(file, fbuf);
2107                         recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out);
2108                         cur_flist->to_redo--;
2109
2110                         cur_flist = flist;
2111
2112                         csum_length = SHORT_SUM_LENGTH;
2113                         max_size = save_max_size;
2114                         min_size = save_min_size;
2115                         ignore_existing = -ignore_existing;
2116                         ignore_non_existing = -ignore_non_existing;
2117                         update_only = -update_only;
2118                         always_checksum = -always_checksum;
2119                         size_only = -size_only;
2120                         append_mode = -append_mode;
2121                         make_backups = -make_backups;
2122                         ignore_times--;
2123                         continue;
2124                 }
2125
2126                 if (cur_flist == first_flist)
2127                         break;
2128
2129                 /* We only get here if inc_recurse is enabled. */
2130                 if (first_flist->in_progress || first_flist->to_redo)
2131                         break;
2132
2133                 write_ndx(sock_f_out, NDX_DONE);
2134                 if (!read_batch && !flist_eof) {
2135                         int old_total = 0;
2136                         for (flist = first_flist; flist != cur_flist; flist = flist->next)
2137                                 old_total += flist->used;
2138                         maybe_flush_socket(!flist_eof && file_total - old_total < MIN_FILECNT_LOOKAHEAD/2);
2139                 }
2140
2141                 if (delete_during == 2 || !dir_tweaking) {
2142                         /* Skip directory touch-up. */
2143                 } else if (first_flist->parent_ndx >= 0)
2144                         touch_up_dirs(dir_flist, first_flist->parent_ndx);
2145
2146                 flist_free(first_flist); /* updates first_flist */
2147         }
2148 }
2149
2150 void generate_files(int f_out, const char *local_name)
2151 {
2152         int i, ndx, next_loopchk = 0;
2153         char fbuf[MAXPATHLEN];
2154         int itemizing;
2155         enum logcode code;
2156         int save_info_flist = info_levels[INFO_FLIST];
2157         int save_info_progress = info_levels[INFO_PROGRESS];
2158
2159         if (protocol_version >= 29) {
2160                 itemizing = 1;
2161                 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
2162                 code = logfile_format_has_i ? FNONE : FLOG;
2163         } else if (am_daemon) {
2164                 itemizing = logfile_format_has_i && do_xfers;
2165                 maybe_ATTRS_REPORT = ATTRS_REPORT;
2166                 code = itemizing || !do_xfers ? FCLIENT : FINFO;
2167         } else if (!am_server) {
2168                 itemizing = stdout_format_has_i;
2169                 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
2170                 code = itemizing ? FNONE : FINFO;
2171         } else {
2172                 itemizing = 0;
2173                 maybe_ATTRS_REPORT = ATTRS_REPORT;
2174                 code = FINFO;
2175         }
2176         solo_file = local_name;
2177         dir_tweaking = !(list_only || solo_file || dry_run);
2178         need_retouch_dir_times = preserve_times & PRESERVE_DIR_TIMES;
2179         loopchk_limit = allowed_lull ? allowed_lull * 5 : 200;
2180         symlink_timeset_failed_flags = ITEM_REPORT_TIME
2181             | (protocol_version >= 30 || !am_server ? ITEM_REPORT_TIMEFAIL : 0);
2182         implied_dirs_are_missing = relative_paths && !implied_dirs && protocol_version < 30;
2183
2184         if (DEBUG_GTE(GENR, 1))
2185                 rprintf(FINFO, "generator starting pid=%d\n", (int)getpid());
2186
2187         if (delete_before && !solo_file && cur_flist->used > 0)
2188                 do_delete_pass();
2189         if (delete_during == 2) {
2190                 deldelay_size = BIGPATHBUFLEN * 4;
2191                 deldelay_buf = new_array(char, deldelay_size);
2192                 if (!deldelay_buf)
2193                         out_of_memory("delete-delay");
2194         }
2195         info_levels[INFO_FLIST] = info_levels[INFO_PROGRESS] = 0;
2196
2197         if (append_mode > 0 || whole_file < 0)
2198                 whole_file = 0;
2199         if (DEBUG_GTE(FLIST, 1)) {
2200                 rprintf(FINFO, "delta-transmission %s\n",
2201                         whole_file
2202                         ? "disabled for local transfer or --whole-file"
2203                         : "enabled");
2204         }
2205
2206         dflt_perms = (ACCESSPERMS & ~orig_umask);
2207
2208         do {
2209 #ifdef SUPPORT_HARD_LINKS
2210                 if (preserve_hard_links && inc_recurse) {
2211                         while (!flist_eof && file_total < MIN_FILECNT_LOOKAHEAD/2)
2212                                 wait_for_receiver();
2213                 }
2214 #endif
2215
2216                 if (inc_recurse && cur_flist->parent_ndx >= 0) {
2217                         struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx];
2218                         if (solo_file)
2219                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2220                         else
2221                                 f_name(fp, fbuf);
2222                         ndx = cur_flist->ndx_start - 1;
2223                         recv_generator(fbuf, fp, ndx, itemizing, code, f_out);
2224                         if (delete_during && dry_run < 2 && !list_only
2225                          && !(fp->flags & FLAG_MISSING_DIR)) {
2226                                 if (fp->flags & FLAG_CONTENT_DIR) {
2227                                         dev_t dirdev;
2228                                         if (one_file_system) {
2229                                                 uint32 *devp = F_DIR_DEV_P(fp);
2230                                                 dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
2231                                         } else
2232                                                 dirdev = MAKEDEV(0, 0);
2233                                         delete_in_dir(fbuf, fp, &dirdev);
2234                                 } else
2235                                         change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(fp));
2236                         }
2237                 }
2238                 for (i = cur_flist->low; i <= cur_flist->high; i++) {
2239                         struct file_struct *file = cur_flist->sorted[i];
2240
2241                         if (!F_IS_ACTIVE(file))
2242                                 continue;
2243
2244                         if (unsort_ndx)
2245                                 ndx = F_NDX(file);
2246                         else
2247                                 ndx = i + cur_flist->ndx_start;
2248
2249                         if (solo_file)
2250                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2251                         else
2252                                 f_name(file, fbuf);
2253                         recv_generator(fbuf, file, ndx, itemizing, code, f_out);
2254
2255                         check_for_finished_files(itemizing, code, 0);
2256
2257                         if (i + cur_flist->ndx_start >= next_loopchk) {
2258                                 if (allowed_lull)
2259                                         maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH);
2260                                 else
2261                                         maybe_flush_socket(0);
2262                                 next_loopchk += loopchk_limit;
2263                         }
2264                 }
2265
2266                 if (!inc_recurse) {
2267                         write_ndx(f_out, NDX_DONE);
2268                         break;
2269                 }
2270
2271                 while (1) {
2272                         check_for_finished_files(itemizing, code, 1);
2273                         if (cur_flist->next || flist_eof)
2274                                 break;
2275                         wait_for_receiver();
2276                 }
2277         } while ((cur_flist = cur_flist->next) != NULL);
2278
2279         if (delete_during)
2280                 delete_in_dir(NULL, NULL, &dev_zero);
2281         phase++;
2282         if (DEBUG_GTE(GENR, 1))
2283                 rprintf(FINFO, "generate_files phase=%d\n", phase);
2284
2285         while (1) {
2286                 check_for_finished_files(itemizing, code, 1);
2287                 if (msgdone_cnt)
2288                         break;
2289                 wait_for_receiver();
2290         }
2291
2292         phase++;
2293         if (DEBUG_GTE(GENR, 1))
2294                 rprintf(FINFO, "generate_files phase=%d\n", phase);
2295
2296         write_ndx(f_out, NDX_DONE);
2297
2298         /* Reduce round-trip lag-time for a useless delay-updates phase. */
2299         if (protocol_version >= 29 && EARLY_DELAY_DONE_MSG())
2300                 write_ndx(f_out, NDX_DONE);
2301
2302         if (protocol_version >= 31 && EARLY_DELETE_DONE_MSG()) {
2303                 if ((INFO_GTE(STATS, 2) && (delete_mode || force_delete)) || read_batch)
2304                         write_del_stats(f_out);
2305                 if (EARLY_DELAY_DONE_MSG()) /* Can't send this before delay */
2306                         write_ndx(f_out, NDX_DONE);
2307         }
2308
2309         /* Read MSG_DONE for the redo phase (and any prior messages). */
2310         while (1) {
2311                 check_for_finished_files(itemizing, code, 0);
2312                 if (msgdone_cnt > 1)
2313                         break;
2314                 wait_for_receiver();
2315         }
2316
2317         if (protocol_version >= 29) {
2318                 phase++;
2319                 if (DEBUG_GTE(GENR, 1))
2320                         rprintf(FINFO, "generate_files phase=%d\n", phase);
2321                 if (!EARLY_DELAY_DONE_MSG()) {
2322                         write_ndx(f_out, NDX_DONE);
2323                         if (protocol_version >= 31 && EARLY_DELETE_DONE_MSG())
2324                                 write_ndx(f_out, NDX_DONE);
2325                 }
2326                 /* Read MSG_DONE for delay-updates phase & prior messages. */
2327                 while (msgdone_cnt == 2)
2328                         wait_for_receiver();
2329         }
2330
2331         info_levels[INFO_FLIST] = save_info_flist;
2332         info_levels[INFO_PROGRESS] = save_info_progress;
2333
2334         if (delete_during == 2)
2335                 do_delayed_deletions(fbuf);
2336         if (delete_after && !solo_file && file_total > 0)
2337                 do_delete_pass();
2338
2339         if (max_delete >= 0 && skipped_deletes) {
2340                 rprintf(FWARNING,
2341                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
2342                         skipped_deletes);
2343                 io_error |= IOERR_DEL_LIMIT;
2344         }
2345
2346         if (protocol_version >= 31) {
2347                 if (!EARLY_DELETE_DONE_MSG()) {
2348                         if (INFO_GTE(STATS, 2) || read_batch)
2349                                 write_del_stats(f_out);
2350                         write_ndx(f_out, NDX_DONE);
2351                 }
2352
2353                 /* Read MSG_DONE for late-delete phase & prior messages. */
2354                 while (msgdone_cnt == 3)
2355                         wait_for_receiver();
2356         }
2357
2358         if ((need_retouch_dir_perms || need_retouch_dir_times)
2359          && dir_tweaking && (!inc_recurse || delete_during == 2))
2360                 touch_up_dirs(dir_flist, -1);
2361
2362         if (DEBUG_GTE(GENR, 1))
2363                 rprintf(FINFO, "generate_files finished\n");
2364 }