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) 2003-2008 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
  26 extern int dry_run;
  27 extern int do_xfers;
  28 extern int stdout_format_has_i;
  29 extern int logfile_format_has_i;
  30 extern int am_root;
  31 extern int am_server;
  32 extern int am_daemon;
  33 extern int inc_recurse;
  34 extern int relative_paths;
  35 extern int implied_dirs;
  36 extern int keep_dirlinks;
  37 extern int preserve_acls;
  38 extern int preserve_xattrs;
  39 extern int preserve_links;
  40 extern int preserve_devices;
  41 extern int preserve_specials;
  42 extern int preserve_hard_links;
  43 extern int preserve_executability;
  44 extern int preserve_perms;
  45 extern int preserve_times;
  46 extern int uid_ndx;
  47 extern int gid_ndx;
  48 extern int delete_mode;
  49 extern int delete_before;
  50 extern int delete_during;
  51 extern int delete_after;
  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 ignore_timeout;
  73 extern int protocol_version;
  74 extern int file_total;
  75 extern int fuzzy_basis;
  76 extern int always_checksum;
  77 extern int checksum_len;
  78 extern char *partial_dir;
  79 extern int compare_dest;
  80 extern int copy_dest;
  81 extern int link_dest;
  82 extern int whole_file;
  83 extern int list_only;
  84 extern int read_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 struct stats stats;
  92 extern dev_t filesystem_dev;
  93 extern mode_t orig_umask;
  94 extern uid_t our_uid;
  95 extern char *backup_dir;
  96 extern char *backup_suffix;
  97 extern int backup_suffix_len;
  98 extern char *basis_dir[MAX_BASIS_DIRS+1];
  99 extern struct file_list *cur_flist, *first_flist, *dir_flist;
 100 extern struct filter_list_struct daemon_filter_list;
 101
 102 int ignore_perishable = 0;
 103 int non_perishable_cnt = 0;
 104 int maybe_ATTRS_REPORT = 0;
 105
 106 static dev_t dev_zero;
 107 static int skipped_deletes = 0;
 108 static int deldelay_size = 0, deldelay_cnt = 0;
 109 static char *deldelay_buf = NULL;
 110 static int deldelay_fd = -1;
 111 static int loopchk_limit;
 112 static int dir_tweaking;
 113 static int symlink_timeset_failed_flags;
 114 static int need_retouch_dir_times;
 115 static int need_retouch_dir_perms;
 116 static const char *solo_file = NULL;
 117
 118 /* For calling delete_item() and delete_dir_contents(). */
 119 #define DEL_NO_UID_WRITE        (1<<0) /* file/dir has our uid w/o write perm */
 120 #define DEL_RECURSE             (1<<1) /* if dir, delete all contents */
 121 #define DEL_DIR_IS_EMPTY        (1<<2) /* internal delete_FUNCTIONS use only */
 122 #define DEL_FOR_FILE            (1<<3) /* making room for a replacement file */
 123 #define DEL_FOR_DIR             (1<<4) /* making room for a replacement dir */
 124 #define DEL_FOR_SYMLINK         (1<<5) /* making room for a replacement symlink */
 125 #define DEL_FOR_DEVICE          (1<<6) /* making room for a replacement device */
 126 #define DEL_FOR_SPECIAL         (1<<7) /* making room for a replacement special */
 127
 128 #define DEL_MAKE_ROOM (DEL_FOR_FILE|DEL_FOR_DIR|DEL_FOR_SYMLINK|DEL_FOR_DEVICE|DEL_FOR_SPECIAL)
 129
 130 enum nonregtype {
 131     TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK
 132 };
 133
 134 enum delret {
 135     DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
 136 };
 137
 138 /* Forward declarations. */
 139 static enum delret delete_dir_contents(char *fname, uint16 flags);
 140 #ifdef SUPPORT_HARD_LINKS
 141 static void handle_skipped_hlink(struct file_struct *file, int itemizing,
 142                                  enum logcode code, int f_out);
 143 #endif
 144
 145 static int is_backup_file(char *fn)
 146 {
 147         int k = strlen(fn) - backup_suffix_len;
 148         return k > 0 && strcmp(fn+k, backup_suffix) == 0;
 149 }
 150
 151 /* Delete a file or directory.  If DEL_RECURSE is set in the flags, this will
 152  * delete recursively.
 153  *
 154  * Note that fbuf must point to a MAXPATHLEN buffer if the mode indicates it's
 155  * a directory! (The buffer is used for recursion, but returned unchanged.)
 156  */
 157 static enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
 158 {
 159         enum delret ret;
 160         char *what;
 161         int ok;
 162
 163         if (DEBUG_GTE(DEL, 2)) {
 164                 rprintf(FINFO, "delete_item(%s) mode=%o flags=%d\n",
 165                         fbuf, (int)mode, (int)flags);
 166         }
 167
 168         if (flags & DEL_NO_UID_WRITE)
 169                 do_chmod(fbuf, mode | S_IWUSR);
 170
 171         if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
 172                 int save_uid_ndx = uid_ndx;
 173                 /* This only happens on the first call to delete_item() since
 174                  * delete_dir_contents() always calls us w/DEL_DIR_IS_EMPTY. */
 175                 if (!uid_ndx)
 176                         uid_ndx = ++file_extra_cnt;
 177                 ignore_perishable = 1;
 178                 /* If DEL_RECURSE is not set, this just reports emptiness. */
 179                 ret = delete_dir_contents(fbuf, flags);
 180                 ignore_perishable = 0;
 181                 if (!save_uid_ndx) {
 182                         --file_extra_cnt;
 183                         uid_ndx = 0;
 184                 }
 185                 if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
 186                         goto check_ret;
 187                 /* OK: try to delete the directory. */
 188         }
 189
 190         if (!(flags & DEL_MAKE_ROOM) && max_delete >= 0 && stats.deleted_files >= max_delete) {
 191                 skipped_deletes++;
 192                 return DR_AT_LIMIT;
 193         }
 194
 195         if (S_ISDIR(mode)) {
 196                 what = "rmdir";
 197                 ok = do_rmdir(fbuf) == 0;
 198         } else if (make_backups > 0 && (backup_dir || !is_backup_file(fbuf))) {
 199                 what = "make_backup";
 200                 ok = make_backup(fbuf);
 201         } else {
 202                 what = "unlink";
 203                 ok = robust_unlink(fbuf) == 0;
 204         }
 205
 206         if (ok) {
 207                 if (!(flags & DEL_MAKE_ROOM)) {
 208                         log_delete(fbuf, mode);
 209                         stats.deleted_files++;
 210                         if (S_ISREG(mode)) {
 211                                 /* Nothing more to count */
 212                         } else if (S_ISDIR(mode))
 213                                 stats.deleted_dirs++;
 214 #ifdef SUPPORT_LINKS
 215                         else if (S_ISLNK(mode))
 216                                 stats.deleted_symlinks++;
 217 #endif
 218                         else if (IS_DEVICE(mode))
 219                                 stats.deleted_symlinks++;
 220                         else
 221                                 stats.deleted_specials++;
 222                 }
 223                 ret = DR_SUCCESS;
 224         } else {
 225                 if (S_ISDIR(mode) && errno == ENOTEMPTY) {
 226                         rprintf(FINFO, "cannot delete non-empty directory: %s\n",
 227                                 fbuf);
 228                         ret = DR_NOT_EMPTY;
 229                 } else if (errno != ENOENT) {
 230                         rsyserr(FERROR, errno, "delete_file: %s(%s) failed",
 231                                 what, fbuf);
 232                         ret = DR_FAILURE;
 233                 } else
 234                         ret = DR_SUCCESS;
 235         }
 236
 237   check_ret:
 238         if (ret != DR_SUCCESS && flags & DEL_MAKE_ROOM) {
 239                 const char *desc;
 240                 switch (flags & DEL_MAKE_ROOM) {
 241                 case DEL_FOR_FILE: desc = "regular file"; break;
 242                 case DEL_FOR_DIR: desc = "directory"; break;
 243                 case DEL_FOR_SYMLINK: desc = "symlink"; break;
 244                 case DEL_FOR_DEVICE: desc = "device file"; break;
 245                 case DEL_FOR_SPECIAL: desc = "special file"; break;
 246                 default: exit_cleanup(RERR_UNSUPPORTED); /* IMPOSSIBLE */
 247                 }
 248                 rprintf(FERROR_XFER, "could not make way for new %s: %s\n",
 249                         desc, fbuf);
 250         }
 251         return ret;
 252 }
 253
 254 /* The directory is about to be deleted: if DEL_RECURSE is given, delete all
 255  * its contents, otherwise just checks for content.  Returns DR_SUCCESS or
 256  * DR_NOT_EMPTY.  Note that fname must point to a MAXPATHLEN buffer!  (The
 257  * buffer is used for recursion, but returned unchanged.)
 258  */
 259 static enum delret delete_dir_contents(char *fname, uint16 flags)
 260 {
 261         struct file_list *dirlist;
 262         enum delret ret;
 263         unsigned remainder;
 264         void *save_filters;
 265         int j, dlen;
 266         char *p;
 267
 268         if (DEBUG_GTE(DEL, 3)) {
 269                 rprintf(FINFO, "delete_dir_contents(%s) flags=%d\n",
 270                         fname, flags);
 271         }
 272
 273         dlen = strlen(fname);
 274         save_filters = push_local_filters(fname, dlen);
 275
 276         non_perishable_cnt = 0;
 277         dirlist = get_dirlist(fname, dlen, 0);
 278         ret = non_perishable_cnt ? DR_NOT_EMPTY : DR_SUCCESS;
 279
 280         if (!dirlist->used)
 281                 goto done;
 282
 283         if (!(flags & DEL_RECURSE)) {
 284                 ret = DR_NOT_EMPTY;
 285                 goto done;
 286         }
 287
 288         p = fname + dlen;
 289         if (dlen != 1 || *fname != '/')
 290                 *p++ = '/';
 291         remainder = MAXPATHLEN - (p - fname);
 292
 293         /* We do our own recursion, so make delete_item() non-recursive. */
 294         flags = (flags & ~(DEL_RECURSE|DEL_MAKE_ROOM|DEL_NO_UID_WRITE))
 295               | DEL_DIR_IS_EMPTY;
 296
 297         for (j = dirlist->used; j--; ) {
 298                 struct file_struct *fp = dirlist->files[j];
 299
 300                 if (fp->flags & FLAG_MOUNT_DIR && S_ISDIR(fp->mode)) {
 301                         if (DEBUG_GTE(DEL, 1)) {
 302                                 rprintf(FINFO,
 303                                     "mount point, %s, pins parent directory\n",
 304                                     f_name(fp, NULL));
 305                         }
 306                         ret = DR_NOT_EMPTY;
 307                         continue;
 308                 }
 309
 310                 strlcpy(p, fp->basename, remainder);
 311                 if (!(fp->mode & S_IWUSR) && !am_root && (uid_t)F_OWNER(fp) == our_uid)
 312                         do_chmod(fname, fp->mode | S_IWUSR);
 313                 /* Save stack by recursing to ourself directly. */
 314                 if (S_ISDIR(fp->mode)) {
 315                         if (delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
 316                                 ret = DR_NOT_EMPTY;
 317                 }
 318                 if (delete_item(fname, fp->mode, flags) != DR_SUCCESS)
 319                         ret = DR_NOT_EMPTY;
 320         }
 321
 322         fname[dlen] = '\0';
 323
 324   done:
 325         flist_free(dirlist);
 326         pop_local_filters(save_filters);
 327
 328         if (ret == DR_NOT_EMPTY) {
 329                 rprintf(FINFO, "cannot delete non-empty directory: %s\n",
 330                         fname);
 331         }
 332         return ret;
 333 }
 334
 335 static int start_delete_delay_temp(void)
 336 {
 337         char fnametmp[MAXPATHLEN];
 338         int save_dry_run = dry_run;
 339
 340         dry_run = 0;
 341         if (!get_tmpname(fnametmp, "deldelay")
 342          || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) {
 343                 rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n",
 344                         inc_recurse ? "" : " -- switching to --delete-after");
 345                 delete_during = 0;
 346                 delete_after = !inc_recurse;
 347                 dry_run = save_dry_run;
 348                 return 0;
 349         }
 350         unlink(fnametmp);
 351         dry_run = save_dry_run;
 352         return 1;
 353 }
 354
 355 static int flush_delete_delay(void)
 356 {
 357         if (deldelay_fd < 0 && !start_delete_delay_temp())
 358                 return 0;
 359         if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) {
 360                 rsyserr(FERROR, errno, "flush of delete-delay buffer");
 361                 delete_during = 0;
 362                 delete_after = !inc_recurse;
 363                 close(deldelay_fd);
 364                 return 0;
 365         }
 366         deldelay_cnt = 0;
 367         return 1;
 368 }
 369
 370 static int remember_delete(struct file_struct *file, const char *fname, int flags)
 371 {
 372         int len;
 373
 374         if (deldelay_cnt == deldelay_size && !flush_delete_delay())
 375                 return 0;
 376
 377         if (flags & DEL_NO_UID_WRITE)
 378                 deldelay_buf[deldelay_cnt++] = '!';
 379
 380         while (1) {
 381                 len = snprintf(deldelay_buf + deldelay_cnt,
 382                                deldelay_size - deldelay_cnt,
 383                                "%x %s%c",
 384                                (int)file->mode, fname, '\0');
 385                 if ((deldelay_cnt += len) <= deldelay_size)
 386                         break;
 387                 deldelay_cnt -= len;
 388                 if (!flush_delete_delay())
 389                         return 0;
 390         }
 391
 392         return 1;
 393 }
 394
 395 static int read_delay_line(char *buf, int *flags_p)
 396 {
 397         static int read_pos = 0;
 398         int j, len, mode;
 399         char *bp, *past_space;
 400
 401         while (1) {
 402                 for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {}
 403                 if (j < deldelay_cnt)
 404                         break;
 405                 if (deldelay_fd < 0) {
 406                         if (j > read_pos)
 407                                 goto invalid_data;
 408                         return -1;
 409                 }
 410                 deldelay_cnt -= read_pos;
 411                 if (deldelay_cnt == deldelay_size)
 412                         goto invalid_data;
 413                 if (deldelay_cnt && read_pos) {
 414                         memmove(deldelay_buf, deldelay_buf + read_pos,
 415                                 deldelay_cnt);
 416                 }
 417                 len = read(deldelay_fd, deldelay_buf + deldelay_cnt,
 418                            deldelay_size - deldelay_cnt);
 419                 if (len == 0) {
 420                         if (deldelay_cnt) {
 421                                 rprintf(FERROR,
 422                                     "ERROR: unexpected EOF in delete-delay file.\n");
 423                         }
 424                         return -1;
 425                 }
 426                 if (len < 0) {
 427                         rsyserr(FERROR, errno,
 428                                 "reading delete-delay file");
 429                         return -1;
 430                 }
 431                 deldelay_cnt += len;
 432                 read_pos = 0;
 433         }
 434
 435         bp = deldelay_buf + read_pos;
 436         if (*bp == '!') {
 437                 bp++;
 438                 *flags_p = DEL_NO_UID_WRITE;
 439         } else
 440                 *flags_p = 0;
 441
 442         if (sscanf(bp, "%x ", &mode) != 1) {
 443           invalid_data:
 444                 rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n");
 445                 return -1;
 446         }
 447         past_space = strchr(bp, ' ') + 1;
 448         len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */
 449         read_pos = j + 1;
 450
 451         if (len > MAXPATHLEN) {
 452                 rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n");
 453                 return -1;
 454         }
 455
 456         /* The caller needs the name in a MAXPATHLEN buffer, so we copy it
 457          * instead of returning a pointer to our buffer. */
 458         memcpy(buf, past_space, len);
 459
 460         return mode;
 461 }
 462
 463 static void do_delayed_deletions(char *delbuf)
 464 {
 465         int mode, flags;
 466
 467         if (deldelay_fd >= 0) {
 468                 if (deldelay_cnt && !flush_delete_delay())
 469                         return;
 470                 lseek(deldelay_fd, 0, 0);
 471         }
 472         while ((mode = read_delay_line(delbuf, &flags)) >= 0)
 473                 delete_item(delbuf, mode, flags | DEL_RECURSE);
 474         if (deldelay_fd >= 0)
 475                 close(deldelay_fd);
 476 }
 477
 478 /* This function is used to implement per-directory deletion, and is used by
 479  * all the --delete-WHEN options.  Note that the fbuf pointer must point to a
 480  * MAXPATHLEN buffer with the name of the directory in it (the functions we
 481  * call will append names onto the end, but the old dir value will be restored
 482  * on exit). */
 483 static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 484 {
 485         static int already_warned = 0;
 486         struct file_list *dirlist;
 487         char delbuf[MAXPATHLEN];
 488         int dlen, i;
 489         int save_uid_ndx = uid_ndx;
 490
 491         if (!fbuf) {
 492                 change_local_filter_dir(NULL, 0, 0);
 493                 return;
 494         }
 495
 496         if (DEBUG_GTE(DEL, 2))
 497                 rprintf(FINFO, "delete_in_dir(%s)\n", fbuf);
 498
 499         if (allowed_lull)
 500                 maybe_send_keepalive();
 501
 502         if (io_error && !ignore_errors) {
 503                 if (already_warned)
 504                         return;
 505                 rprintf(FINFO,
 506                         "IO error encountered -- skipping file deletion\n");
 507                 already_warned = 1;
 508                 return;
 509         }
 510
 511         dlen = strlen(fbuf);
 512         change_local_filter_dir(fbuf, dlen, F_DEPTH(file));
 513
 514         if (one_file_system) {
 515                 if (file->flags & FLAG_TOP_DIR)
 516                         filesystem_dev = *fs_dev;
 517                 else if (filesystem_dev != *fs_dev)
 518                         return;
 519         }
 520
 521         if (!uid_ndx)
 522                 uid_ndx = ++file_extra_cnt;
 523
 524         dirlist = get_dirlist(fbuf, dlen, 0);
 525
 526         /* If an item in dirlist is not found in flist, delete it
 527          * from the filesystem. */
 528         for (i = dirlist->used; i--; ) {
 529                 struct file_struct *fp = dirlist->files[i];
 530                 if (!F_IS_ACTIVE(fp))
 531                         continue;
 532                 if (fp->flags & FLAG_MOUNT_DIR && S_ISDIR(fp->mode)) {
 533                         if (INFO_GTE(MOUNT, 1))
 534                                 rprintf(FINFO, "cannot delete mount point: %s\n",
 535                                         f_name(fp, NULL));
 536                         continue;
 537                 }
 538                 /* Here we want to match regardless of file type.  Replacement
 539                  * of a file with one of another type is handled separately by
 540                  * a delete_item call with a DEL_MAKE_ROOM flag. */
 541                 if (flist_find_ignore_dirness(cur_flist, fp) < 0) {
 542                         int flags = DEL_RECURSE;
 543                         if (!(fp->mode & S_IWUSR) && !am_root && (uid_t)F_OWNER(fp) == our_uid)
 544                                 flags |= DEL_NO_UID_WRITE;
 545                         f_name(fp, delbuf);
 546                         if (delete_during == 2) {
 547                                 if (!remember_delete(fp, delbuf, flags))
 548                                         break;
 549                         } else
 550                                 delete_item(delbuf, fp->mode, flags);
 551                 }
 552         }
 553
 554         flist_free(dirlist);
 555
 556         if (!save_uid_ndx) {
 557                 --file_extra_cnt;
 558                 uid_ndx = 0;
 559         }
 560 }
 561
 562 /* This deletes any files on the receiving side that are not present on the
 563  * sending side.  This is used by --delete-before and --delete-after. */
 564 static void do_delete_pass(void)
 565 {
 566         char fbuf[MAXPATHLEN];
 567         STRUCT_STAT st;
 568         int j;
 569
 570         /* dry_run is incremented when the destination doesn't exist yet. */
 571         if (dry_run > 1 || list_only)
 572                 return;
 573
 574         for (j = 0; j < cur_flist->used; j++) {
 575                 struct file_struct *file = cur_flist->sorted[j];
 576
 577                 f_name(file, fbuf);
 578
 579                 if (!(file->flags & FLAG_CONTENT_DIR)) {
 580                         change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(file));
 581                         continue;
 582                 }
 583
 584                 if (DEBUG_GTE(DEL, 1) && file->flags & FLAG_TOP_DIR)
 585                         rprintf(FINFO, "deleting in %s\n", fbuf);
 586
 587                 if (link_stat(fbuf, &st, keep_dirlinks) < 0
 588                  || !S_ISDIR(st.st_mode))
 589                         continue;
 590
 591                 delete_in_dir(fbuf, file, &st.st_dev);
 592         }
 593         delete_in_dir(NULL, NULL, &dev_zero);
 594
 595         if (INFO_GTE(FLIST, 2) && !am_server)
 596                 rprintf(FINFO, "                    \r");
 597 }
 598
 599 int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp)
 600 {
 601 #if !defined HAVE_LUTIMES || !defined HAVE_UTIMES
 602         if (S_ISLNK(file->mode)) {
 603                 ;
 604         } else
 605 #endif
 606         if (preserve_times && cmp_time(sxp->st.st_mtime, file->modtime) != 0)
 607                 return 0;
 608
 609         if (preserve_perms) {
 610                 if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
 611                         return 0;
 612         } else if (preserve_executability
 613          && ((sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0)))
 614                 return 0;
 615
 616         if (am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file))
 617                 return 0;
 618
 619         if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) && sxp->st.st_gid != (gid_t)F_GROUP(file))
 620                 return 0;
 621
 622 #ifdef SUPPORT_ACLS
 623         if (preserve_acls && !S_ISLNK(file->mode)) {
 624                 if (!ACL_READY(*sxp))
 625                         get_acl(fname, sxp);
 626                 if (set_acl(NULL, file, sxp) == 0)
 627                         return 0;
 628         }
 629 #endif
 630 #ifdef SUPPORT_XATTRS
 631         if (preserve_xattrs) {
 632                 if (!XATTR_READY(*sxp))
 633                         get_xattr(fname, sxp);
 634                 if (xattr_diff(file, sxp, 0))
 635                         return 0;
 636         }
 637 #endif
 638
 639         return 1;
 640 }
 641
 642 void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret,
 643              stat_x *sxp, int32 iflags, uchar fnamecmp_type,
 644              const char *xname)
 645 {
 646         if (statret >= 0) { /* A from-dest-dir statret can == 1! */
 647                 int keep_time = !preserve_times ? 0
 648                     : S_ISDIR(file->mode) ? preserve_times > 1 :
 649 #if defined HAVE_LUTIMES && defined HAVE_UTIMES
 650                     1;
 651 #else
 652                     !S_ISLNK(file->mode);
 653 #endif
 654
 655                 if (S_ISREG(file->mode) && F_LENGTH(file) != sxp->st.st_size)
 656                         iflags |= ITEM_REPORT_SIZE;
 657                 if (file->flags & FLAG_TIME_FAILED) { /* symlinks only */
 658                         if (iflags & ITEM_LOCAL_CHANGE)
 659                                 iflags |= symlink_timeset_failed_flags;
 660                 } else if (keep_time
 661                  ? cmp_time(file->modtime, sxp->st.st_mtime) != 0
 662                  : iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !(iflags & ITEM_MATCHED)
 663                   && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname))
 664                         iflags |= ITEM_REPORT_TIME;
 665 #if !defined HAVE_LCHMOD && !defined HAVE_SETATTRLIST
 666                 if (S_ISLNK(file->mode)) {
 667                         ;
 668                 } else
 669 #endif
 670                 if (preserve_perms) {
 671                         if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS))
 672                                 iflags |= ITEM_REPORT_PERMS;
 673                 } else if (preserve_executability
 674                  && ((sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0)))
 675                         iflags |= ITEM_REPORT_PERMS;
 676                 if (uid_ndx && am_root && (uid_t)F_OWNER(file) != sxp->st.st_uid)
 677                         iflags |= ITEM_REPORT_OWNER;
 678                 if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
 679                     && sxp->st.st_gid != (gid_t)F_GROUP(file))
 680                         iflags |= ITEM_REPORT_GROUP;
 681 #ifdef SUPPORT_ACLS
 682                 if (preserve_acls && !S_ISLNK(file->mode)) {
 683                         if (!ACL_READY(*sxp))
 684                                 get_acl(fnamecmp, sxp);
 685                         if (set_acl(NULL, file, sxp) == 0)
 686                                 iflags |= ITEM_REPORT_ACL;
 687                 }
 688 #endif
 689 #ifdef SUPPORT_XATTRS
 690                 if (preserve_xattrs) {
 691                         if (!XATTR_READY(*sxp))
 692                                 get_xattr(fnamecmp, sxp);
 693                         if (xattr_diff(file, sxp, 1))
 694                                 iflags |= ITEM_REPORT_XATTR;
 695                 }
 696 #endif
 697         } else {
 698 #ifdef SUPPORT_XATTRS
 699                 if (preserve_xattrs && xattr_diff(file, NULL, 1))
 700                         iflags |= ITEM_REPORT_XATTR;
 701 #endif
 702                 iflags |= ITEM_IS_NEW;
 703         }
 704
 705         iflags &= 0xffff;
 706         if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || INFO_GTE(NAME, 2)
 707           || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) {
 708                 if (protocol_version >= 29) {
 709                         if (ndx >= 0)
 710                                 write_ndx(sock_f_out, ndx);
 711                         write_shortint(sock_f_out, iflags);
 712                         if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
 713                                 write_byte(sock_f_out, fnamecmp_type);
 714                         if (iflags & ITEM_XNAME_FOLLOWS)
 715                                 write_vstring(sock_f_out, xname, strlen(xname));
 716 #ifdef SUPPORT_XATTRS
 717                         if (preserve_xattrs && !dry_run
 718                          && iflags & (ITEM_REPORT_XATTR|ITEM_TRANSFER)) {
 719                                 send_xattr_request(NULL, file,
 720                                         iflags & ITEM_REPORT_XATTR ? sock_f_out : -1);
 721                         }
 722 #endif
 723                 } else if (ndx >= 0) {
 724                         enum logcode code = logfile_format_has_i ? FINFO : FCLIENT;
 725                         log_item(code, file, &stats, iflags, xname);
 726                 }
 727         }
 728 }
 729
 730
 731 /* Perform our quick-check heuristic for determining if a file is unchanged. */
 732 int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st)
 733 {
 734         if (st->st_size != F_LENGTH(file))
 735                 return 0;
 736
 737         /* if always checksum is set then we use the checksum instead
 738            of the file time to determine whether to sync */
 739         if (always_checksum > 0 && S_ISREG(st->st_mode)) {
 740                 char sum[MAX_DIGEST_LEN];
 741                 file_checksum(fn, sum, st->st_size);
 742                 return memcmp(sum, F_SUM(file), checksum_len) == 0;
 743         }
 744
 745         if (size_only > 0)
 746                 return 1;
 747
 748         if (ignore_times)
 749                 return 0;
 750
 751         return cmp_time(st->st_mtime, file->modtime) == 0;
 752 }
 753
 754
 755 /*
 756  * set (initialize) the size entries in the per-file sum_struct
 757  * calculating dynamic block and checksum sizes.
 758  *
 759  * This is only called from generate_and_send_sums() but is a separate
 760  * function to encapsulate the logic.
 761  *
 762  * The block size is a rounded square root of file length.
 763  *
 764  * The checksum size is determined according to:
 765  *     blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len)
 766  * provided by Donovan Baarda which gives a probability of rsync
 767  * algorithm corrupting data and falling back using the whole md4
 768  * checksums.
 769  *
 770  * This might be made one of several selectable heuristics.
 771  */
 772 static void sum_sizes_sqroot(struct sum_struct *sum, int64 len)
 773 {
 774         int32 blength;
 775         int s2length;
 776         int64 l;
 777
 778         if (block_size)
 779                 blength = block_size;
 780         else if (len <= BLOCK_SIZE * BLOCK_SIZE)
 781                 blength = BLOCK_SIZE;
 782         else {
 783                 int32 max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
 784                 int32 c;
 785                 int cnt;
 786                 for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {}
 787                 if (c < 0 || c >= max_blength)
 788                         blength = max_blength;
 789                 else {
 790                     blength = 0;
 791                     do {
 792                             blength |= c;
 793                             if (len < (int64)blength * blength)
 794                                     blength &= ~c;
 795                             c >>= 1;
 796                     } while (c >= 8);   /* round to multiple of 8 */
 797                     blength = MAX(blength, BLOCK_SIZE);
 798                 }
 799         }
 800
 801         if (protocol_version < 27) {
 802                 s2length = csum_length;
 803         } else if (csum_length == SUM_LENGTH) {
 804                 s2length = SUM_LENGTH;
 805         } else {
 806                 int32 c;
 807                 int b = BLOCKSUM_BIAS;
 808                 for (l = len; l >>= 1; b += 2) {}
 809                 for (c = blength; (c >>= 1) && b; b--) {}
 810                 /* add a bit, subtract rollsum, round up. */
 811                 s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */
 812                 s2length = MAX(s2length, csum_length);
 813                 s2length = MIN(s2length, SUM_LENGTH);
 814         }
 815
 816         sum->flength    = len;
 817         sum->blength    = blength;
 818         sum->s2length   = s2length;
 819         sum->remainder  = (int32)(len % blength);
 820         sum->count      = (int32)(l = (len / blength) + (sum->remainder != 0));
 821
 822         if ((int64)sum->count != l)
 823                 sum->count = -1;
 824
 825         if (sum->count && DEBUG_GTE(DELTASUM, 2)) {
 826                 rprintf(FINFO,
 827                         "count=%s rem=%ld blength=%ld s2length=%d flength=%s\n",
 828                         big_num(sum->count), (long)sum->remainder, (long)sum->blength,
 829                         sum->s2length, big_num(sum->flength));
 830         }
 831 }
 832
 833
 834 /*
 835  * Generate and send a stream of signatures/checksums that describe a buffer
 836  *
 837  * Generate approximately one checksum every block_len bytes.
 838  */
 839 static int generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
 840 {
 841         int32 i;
 842         struct map_struct *mapbuf;
 843         struct sum_struct sum;
 844         OFF_T offset = 0;
 845
 846         sum_sizes_sqroot(&sum, len);
 847         if (sum.count < 0)
 848                 return -1;
 849         write_sum_head(f_out, &sum);
 850
 851         if (append_mode > 0 && f_copy < 0)
 852                 return 0;
 853
 854         if (len > 0)
 855                 mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 856         else
 857                 mapbuf = NULL;
 858
 859         for (i = 0; i < sum.count; i++) {
 860                 int32 n1 = (int32)MIN(len, (OFF_T)sum.blength);
 861                 char *map = map_ptr(mapbuf, offset, n1);
 862                 char sum2[SUM_LENGTH];
 863                 uint32 sum1;
 864
 865                 len -= n1;
 866                 offset += n1;
 867
 868                 if (f_copy >= 0) {
 869                         full_write(f_copy, map, n1);
 870                         if (append_mode > 0)
 871                                 continue;
 872                 }
 873
 874                 sum1 = get_checksum1(map, n1);
 875                 get_checksum2(map, n1, sum2);
 876
 877                 if (DEBUG_GTE(DELTASUM, 3)) {
 878                         rprintf(FINFO,
 879                                 "chunk[%s] offset=%s len=%ld sum1=%08lx\n",
 880                                 big_num(i), big_num(offset - n1), (long)n1,
 881                                 (unsigned long)sum1);
 882                 }
 883                 write_int(f_out, sum1);
 884                 write_buf(f_out, sum2, sum.s2length);
 885         }
 886
 887         if (mapbuf)
 888                 unmap_file(mapbuf);
 889
 890         return 0;
 891 }
 892
 893
 894 /* Try to find a filename in the same dir as "fname" with a similar name. */
 895 static int find_fuzzy(struct file_struct *file, struct file_list *dirlist)
 896 {
 897         int fname_len, fname_suf_len;
 898         const char *fname_suf, *fname = file->basename;
 899         uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */
 900         int j, lowest_j = -1;
 901
 902         fname_len = strlen(fname);
 903         fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len);
 904
 905         for (j = 0; j < dirlist->used; j++) {
 906                 struct file_struct *fp = dirlist->files[j];
 907                 const char *suf, *name;
 908                 int len, suf_len;
 909                 uint32 dist;
 910
 911                 if (!S_ISREG(fp->mode) || !F_LENGTH(fp)
 912                  || fp->flags & FLAG_FILE_SENT)
 913                         continue;
 914
 915                 name = fp->basename;
 916
 917                 if (F_LENGTH(fp) == F_LENGTH(file)
 918                     && cmp_time(fp->modtime, file->modtime) == 0) {
 919                         if (DEBUG_GTE(FUZZY, 2)) {
 920                                 rprintf(FINFO,
 921                                         "fuzzy size/modtime match for %s\n",
 922                                         name);
 923                         }
 924                         return j;
 925                 }
 926
 927                 len = strlen(name);
 928                 suf = find_filename_suffix(name, len, &suf_len);
 929
 930                 dist = fuzzy_distance(name, len, fname, fname_len);
 931                 /* Add some extra weight to how well the suffixes match. */
 932                 dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len)
 933                       * 10;
 934                 if (DEBUG_GTE(FUZZY, 2)) {
 935                         rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n",
 936                                 name, (int)(dist>>16), (int)(dist&0xFFFF));
 937                 }
 938                 if (dist <= lowest_dist) {
 939                         lowest_dist = dist;
 940                         lowest_j = j;
 941                 }
 942         }
 943
 944         return lowest_j;
 945 }
 946
 947 /* Copy a file found in our --copy-dest handling. */
 948 static int copy_altdest_file(const char *src, const char *dest, struct file_struct *file)
 949 {
 950         char buf[MAXPATHLEN];
 951         const char *copy_to, *partialptr;
 952         int save_preserve_xattrs = preserve_xattrs;
 953         int ok, fd_w;
 954
 955         if (inplace) {
 956                 /* Let copy_file open the destination in place. */
 957                 fd_w = -1;
 958                 copy_to = dest;
 959         } else {
 960                 fd_w = open_tmpfile(buf, dest, file);
 961                 if (fd_w < 0)
 962                         return -1;
 963                 copy_to = buf;
 964         }
 965         cleanup_set(copy_to, NULL, NULL, -1, -1);
 966         if (copy_file(src, copy_to, fd_w, file->mode, 0) < 0) {
 967                 if (INFO_GTE(COPY, 1)) {
 968                         rsyserr(FINFO, errno, "copy_file %s => %s",
 969                                 full_fname(src), copy_to);
 970                 }
 971                 /* Try to clean up. */
 972                 unlink(copy_to);
 973                 cleanup_disable();
 974                 return -1;
 975         }
 976         partialptr = partial_dir ? partial_dir_fname(dest) : NULL;
 977         preserve_xattrs = 0; /* xattrs were copied with file */
 978         ok = finish_transfer(dest, copy_to, src, partialptr, file, 1, 0);
 979         preserve_xattrs = save_preserve_xattrs;
 980         cleanup_disable();
 981         return ok ? 0 : -1;
 982 }
 983
 984 /* This is only called for regular files.  We return -2 if we've finished
 985  * handling the file, -1 if no dest-linking occurred, or a non-negative
 986  * value if we found an alternate basis file. */
 987 static int try_dests_reg(struct file_struct *file, char *fname, int ndx,
 988                          char *cmpbuf, stat_x *sxp, int itemizing,
 989                          enum logcode code)
 990 {
 991         int best_match = -1;
 992         int match_level = 0;
 993         int j = 0;
 994
 995         do {
 996                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
 997                 if (link_stat(cmpbuf, &sxp->st, 0) < 0 || !S_ISREG(sxp->st.st_mode))
 998                         continue;
 999                 switch (match_level) {
1000                 case 0:
1001                         best_match = j;
1002                         match_level = 1;
1003                         /* FALL THROUGH */
1004                 case 1:
1005                         if (!unchanged_file(cmpbuf, file, &sxp->st))
1006                                 continue;
1007                         best_match = j;
1008                         match_level = 2;
1009                         /* FALL THROUGH */
1010                 case 2:
1011                         if (!unchanged_attrs(cmpbuf, file, sxp))
1012                                 continue;
1013                         best_match = j;
1014                         match_level = 3;
1015                         break;
1016                 }
1017                 break;
1018         } while (basis_dir[++j] != NULL);
1019
1020         if (!match_level)
1021                 return -1;
1022
1023         if (j != best_match) {
1024                 j = best_match;
1025                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1026                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1027                         return -1;
1028         }
1029
1030         if (match_level == 3 && !copy_dest) {
1031 #ifdef SUPPORT_HARD_LINKS
1032                 if (link_dest) {
1033                         if (!hard_link_one(file, fname, cmpbuf, 1))
1034                                 goto try_a_copy;
1035                         if (preserve_hard_links && F_IS_HLINKED(file))
1036                                 finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, j);
1037                         if (!maybe_ATTRS_REPORT && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) {
1038                                 itemize(cmpbuf, file, ndx, 1, sxp,
1039                                         ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
1040                                         0, "");
1041                         }
1042                 } else
1043 #endif
1044                 if (itemizing)
1045                         itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL);
1046                 if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT)
1047                         rprintf(FCLIENT, "%s is uptodate\n", fname);
1048                 return -2;
1049         }
1050
1051         if (match_level >= 2) {
1052 #ifdef SUPPORT_HARD_LINKS
1053           try_a_copy: /* Copy the file locally. */
1054 #endif
1055                 if (!dry_run && copy_altdest_file(cmpbuf, fname, file) < 0)
1056                         return -1;
1057                 if (itemizing)
1058                         itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL);
1059                 if (maybe_ATTRS_REPORT
1060                  && ((!itemizing && INFO_GTE(NAME, 1) && match_level == 2)
1061                   || (INFO_GTE(NAME, 2) && match_level == 3))) {
1062                         code = match_level == 3 ? FCLIENT : FINFO;
1063                         rprintf(code, "%s%s\n", fname,
1064                                 match_level == 3 ? " is uptodate" : "");
1065                 }
1066 #ifdef SUPPORT_HARD_LINKS
1067                 if (preserve_hard_links && F_IS_HLINKED(file))
1068                         finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, -1);
1069 #endif
1070                 return -2;
1071         }
1072
1073         return FNAMECMP_BASIS_DIR_LOW + j;
1074 }
1075
1076 /* This is only called for non-regular files.  We return -2 if we've finished
1077  * handling the file, or -1 if no dest-linking occurred, or a non-negative
1078  * value if we found an alternate basis file. */
1079 static int try_dests_non(struct file_struct *file, char *fname, int ndx,
1080                          char *cmpbuf, stat_x *sxp, int itemizing,
1081                          enum logcode code)
1082 {
1083         char lnk[MAXPATHLEN];
1084         int best_match = -1;
1085         int match_level = 0;
1086         enum nonregtype type;
1087         uint32 *devp;
1088         int len, j = 0;
1089
1090 #ifndef SUPPORT_LINKS
1091         if (S_ISLNK(file->mode))
1092                 return -1;
1093 #endif
1094         if (S_ISDIR(file->mode)) {
1095                 type = TYPE_DIR;
1096         } else if (IS_SPECIAL(file->mode))
1097                 type = TYPE_SPECIAL;
1098         else if (IS_DEVICE(file->mode))
1099                 type = TYPE_DEVICE;
1100 #ifdef SUPPORT_LINKS
1101         else if (S_ISLNK(file->mode))
1102                 type = TYPE_SYMLINK;
1103 #endif
1104         else {
1105                 rprintf(FERROR,
1106                         "internal: try_dests_non() called with invalid mode (%o)\n",
1107                         (int)file->mode);
1108                 exit_cleanup(RERR_UNSUPPORTED);
1109         }
1110
1111         do {
1112                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1113                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1114                         continue;
1115                 switch (type) {
1116                 case TYPE_DIR:
1117                         if (!S_ISDIR(sxp->st.st_mode))
1118                                 continue;
1119                         break;
1120                 case TYPE_SPECIAL:
1121                         if (!IS_SPECIAL(sxp->st.st_mode))
1122                                 continue;
1123                         break;
1124                 case TYPE_DEVICE:
1125                         if (!IS_DEVICE(sxp->st.st_mode))
1126                                 continue;
1127                         break;
1128 #ifdef SUPPORT_LINKS
1129                 case TYPE_SYMLINK:
1130                         if (!S_ISLNK(sxp->st.st_mode))
1131                                 continue;
1132                         break;
1133 #endif
1134                 }
1135                 if (match_level < 1) {
1136                         match_level = 1;
1137                         best_match = j;
1138                 }
1139                 switch (type) {
1140                 case TYPE_DIR:
1141                         break;
1142                 case TYPE_SPECIAL:
1143                 case TYPE_DEVICE:
1144                         devp = F_RDEV_P(file);
1145                         if (sxp->st.st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)))
1146                                 continue;
1147                         break;
1148 #ifdef SUPPORT_LINKS
1149                 case TYPE_SYMLINK:
1150                         if ((len = readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0)
1151                                 continue;
1152                         lnk[len] = '\0';
1153                         if (strcmp(lnk, F_SYMLINK(file)) != 0)
1154                                 continue;
1155                         break;
1156 #endif
1157                 }
1158                 if (match_level < 2) {
1159                         match_level = 2;
1160                         best_match = j;
1161                 }
1162                 if (unchanged_attrs(cmpbuf, file, sxp)) {
1163                         match_level = 3;
1164                         best_match = j;
1165                         break;
1166                 }
1167         } while (basis_dir[++j] != NULL);
1168
1169         if (!match_level)
1170                 return -1;
1171
1172         if (j != best_match) {
1173                 j = best_match;
1174                 pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
1175                 if (link_stat(cmpbuf, &sxp->st, 0) < 0)
1176                         return -1;
1177         }
1178
1179         if (match_level == 3) {
1180 #ifdef SUPPORT_HARD_LINKS
1181                 if (link_dest
1182 #ifndef CAN_HARDLINK_SYMLINK
1183                  && !S_ISLNK(file->mode)
1184 #endif
1185 #ifndef CAN_HARDLINK_SPECIAL
1186                  && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode)
1187 #endif
1188                  && !S_ISDIR(file->mode)) {
1189                         if (do_link(cmpbuf, fname) < 0) {
1190                                 rsyserr(FERROR_XFER, errno,
1191                                         "failed to hard-link %s with %s",
1192                                         cmpbuf, fname);
1193                                 return j;
1194                         }
1195                         if (preserve_hard_links && F_IS_HLINKED(file))
1196                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1197                 } else
1198 #endif
1199                         match_level = 2;
1200                 if (itemizing && stdout_format_has_i
1201                  && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) {
1202                         int chg = compare_dest && type != TYPE_DIR ? 0
1203                             : ITEM_LOCAL_CHANGE + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0);
1204                         char *lp = match_level == 3 ? "" : NULL;
1205                         itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp);
1206                 }
1207                 if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT) {
1208                         rprintf(FCLIENT, "%s%s is uptodate\n",
1209                                 fname, type == TYPE_DIR ? "/" : "");
1210                 }
1211                 return -2;
1212         }
1213
1214         return j;
1215 }
1216
1217 static void list_file_entry(struct file_struct *f)
1218 {
1219         char permbuf[PERMSTRING_SIZE];
1220         int64 len;
1221         int colwidth = human_readable ? 14 : 11;
1222
1223         if (!F_IS_ACTIVE(f)) {
1224                 /* this can happen if duplicate names were removed */
1225                 return;
1226         }
1227
1228         permstring(permbuf, f->mode);
1229         len = F_LENGTH(f);
1230
1231         /* TODO: indicate '+' if the entry has an ACL. */
1232
1233 #ifdef SUPPORT_LINKS
1234         if (preserve_links && S_ISLNK(f->mode)) {
1235                 rprintf(FINFO, "%s %*s %s %s -> %s\n",
1236                         permbuf, colwidth, comma_num(len),
1237                         timestring(f->modtime), f_name(f, NULL),
1238                         F_SYMLINK(f));
1239         } else
1240 #endif
1241         {
1242                 rprintf(FINFO, "%s %*s %s %s\n",
1243                         permbuf, colwidth, comma_num(len),
1244                         timestring(f->modtime), f_name(f, NULL));
1245         }
1246 }
1247
1248 static int phase = 0;
1249 static int dflt_perms;
1250
1251 static int implied_dirs_are_missing;
1252 /* Helper for recv_generator's skip_dir and dry_missing_dir tests. */
1253 static BOOL is_below(struct file_struct *file, struct file_struct *subtree)
1254 {
1255         return F_DEPTH(file) > F_DEPTH(subtree)
1256                 && (!implied_dirs_are_missing || f_name_has_prefix(file, subtree));
1257 }
1258
1259 /* Acts on the indicated item in cur_flist whose name is fname.  If a dir,
1260  * make sure it exists, and has the right permissions/timestamp info.  For
1261  * all other non-regular files (symlinks, etc.) we create them here.  For
1262  * regular files that have changed, we try to find a basis file and then
1263  * start sending checksums.  The ndx is the file's unique index value.
1264  *
1265  * The fname parameter must point to a MAXPATHLEN buffer!  (e.g it gets
1266  * passed to delete_item(), which can use it during a recursive delete.)
1267  *
1268  * Note that f_out is set to -1 when doing final directory-permission and
1269  * modification-time repair. */
1270 static void recv_generator(char *fname, struct file_struct *file, int ndx,
1271                            int itemizing, enum logcode code, int f_out)
1272 {
1273         static const char *parent_dirname = "";
1274         /* Missing dir not created due to --dry-run; will still be scanned. */
1275         static struct file_struct *dry_missing_dir = NULL;
1276         /* Missing dir whose contents are skipped altogether due to
1277          * --ignore-non-existing, daemon exclude, or mkdir failure. */
1278         static struct file_struct *skip_dir = NULL;
1279         static struct file_list *fuzzy_dirlist = NULL;
1280         static int need_fuzzy_dirlist = 0;
1281         struct file_struct *fuzzy_file = NULL;
1282         int fd = -1, f_copy = -1;
1283         stat_x sx, real_sx;
1284         STRUCT_STAT partial_st;
1285         struct file_struct *back_file = NULL;
1286         int statret, real_ret, stat_errno;
1287         char *fnamecmp, *partialptr, *backupptr = NULL;
1288         char fnamecmpbuf[MAXPATHLEN];
1289         uchar fnamecmp_type;
1290         int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0;
1291         int is_dir = !S_ISDIR(file->mode) ? 0
1292                    : inc_recurse && ndx != cur_flist->ndx_start - 1 ? -1
1293                    : 1;
1294
1295         if (DEBUG_GTE(GENR, 1))
1296                 rprintf(FINFO, "recv_generator(%s,%d)\n", fname, ndx);
1297
1298         if (list_only) {
1299                 if (is_dir < 0
1300                  || (is_dir && !implied_dirs && file->flags & FLAG_IMPLIED_DIR))
1301                         return;
1302                 list_file_entry(file);
1303                 return;
1304         }
1305
1306         if (skip_dir) {
1307                 if (is_below(file, skip_dir)) {
1308                         if (is_dir)
1309                                 file->flags |= FLAG_MISSING_DIR;
1310 #ifdef SUPPORT_HARD_LINKS
1311                         else if (F_IS_HLINKED(file))
1312                                 handle_skipped_hlink(file, itemizing, code, f_out);
1313 #endif
1314                         return;
1315                 }
1316                 skip_dir = NULL;
1317         }
1318
1319         if (daemon_filter_list.head && (*fname != '.' || fname[1])) {
1320                 if (check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) {
1321                         if (is_dir < 0)
1322                                 return;
1323 #ifdef SUPPORT_HARD_LINKS
1324                         if (F_IS_HLINKED(file))
1325                                 handle_skipped_hlink(file, itemizing, code, f_out);
1326 #endif
1327                         rprintf(FERROR_XFER,
1328                                 "skipping daemon-excluded %s \"%s\"\n",
1329                                 is_dir ? "directory" : "file", fname);
1330                         if (is_dir)
1331                                 goto skipping_dir_contents;
1332                         return;
1333                 }
1334         }
1335
1336 #ifdef SUPPORT_ACLS
1337         sx.acc_acl = sx.def_acl = NULL;
1338 #endif
1339 #ifdef SUPPORT_XATTRS
1340         sx.xattr = NULL;
1341 #endif
1342         if (dry_run > 1 || (dry_missing_dir && is_below(file, dry_missing_dir))) {
1343           parent_is_dry_missing:
1344                 if (fuzzy_dirlist) {
1345                         flist_free(fuzzy_dirlist);
1346                         fuzzy_dirlist = NULL;
1347                 }
1348                 parent_dirname = "";
1349                 statret = -1;
1350                 stat_errno = ENOENT;
1351         } else {
1352                 const char *dn = file->dirname ? file->dirname : ".";
1353                 dry_missing_dir = NULL;
1354                 if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) {
1355                         if (relative_paths && !implied_dirs
1356                          && do_stat(dn, &sx.st) < 0) {
1357                                 if (dry_run)
1358                                         goto parent_is_dry_missing;
1359                                 if (create_directory_path(fname) < 0) {
1360                                         rsyserr(FERROR_XFER, errno,
1361                                                 "recv_generator: mkdir %s failed",
1362                                                 full_fname(dn));
1363                                 }
1364                         }
1365                         if (fuzzy_dirlist) {
1366                                 flist_free(fuzzy_dirlist);
1367                                 fuzzy_dirlist = NULL;
1368                         }
1369                         if (fuzzy_basis)
1370                                 need_fuzzy_dirlist = 1;
1371 #ifdef SUPPORT_ACLS
1372                         if (!preserve_perms)
1373                                 dflt_perms = default_perms_for_dir(dn);
1374 #endif
1375                 }
1376                 parent_dirname = dn;
1377
1378                 if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
1379                         strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
1380                         fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, 1);
1381                         need_fuzzy_dirlist = 0;
1382                 }
1383
1384                 statret = link_stat(fname, &sx.st, keep_dirlinks && is_dir);
1385                 stat_errno = errno;
1386         }
1387
1388         if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) {
1389                 if (is_dir) {
1390                         if (is_dir < 0)
1391                                 return;
1392                         skip_dir = file;
1393                         file->flags |= FLAG_MISSING_DIR;
1394                 }
1395 #ifdef SUPPORT_HARD_LINKS
1396                 else if (F_IS_HLINKED(file))
1397                         handle_skipped_hlink(file, itemizing, code, f_out);
1398 #endif
1399                 if (INFO_GTE(SKIP, 1)) {
1400                         rprintf(FINFO, "not creating new %s \"%s\"\n",
1401                                 is_dir ? "directory" : "file", fname);
1402                 }
1403                 return;
1404         }
1405
1406         if (statret == 0 && !(sx.st.st_mode & S_IWUSR)
1407          && !am_root && sx.st.st_uid == our_uid)
1408                 del_opts |= DEL_NO_UID_WRITE;
1409
1410         if (ignore_existing > 0 && statret == 0
1411          && (!is_dir || !S_ISDIR(sx.st.st_mode))) {
1412                 if (INFO_GTE(SKIP, 1) && is_dir >= 0)
1413                         rprintf(FINFO, "%s exists\n", fname);
1414 #ifdef SUPPORT_HARD_LINKS
1415                 if (F_IS_HLINKED(file))
1416                         handle_skipped_hlink(file, itemizing, code, f_out);
1417 #endif
1418                 goto cleanup;
1419         }
1420
1421         if (is_dir) {
1422                 if (!implied_dirs && file->flags & FLAG_IMPLIED_DIR)
1423                         goto cleanup;
1424                 if (is_dir < 0) {
1425                         /* In inc_recurse mode we want to make sure any missing
1426                          * directories get created while we're still processing
1427                          * the parent dir (which allows us to touch the parent
1428                          * dir's mtime right away).  We will handle the dir in
1429                          * full later (right before we handle its contents). */
1430                         if (statret == 0
1431                          && (S_ISDIR(sx.st.st_mode)
1432                           || delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0))
1433                                 goto cleanup; /* Any errors get reported later. */
1434                         if (do_mkdir(fname, file->mode & 0700) == 0)
1435                                 file->flags |= FLAG_DIR_CREATED;
1436                         goto cleanup;
1437                 }
1438                 /* The file to be received is a directory, so we need
1439                  * to prepare appropriately.  If there is already a
1440                  * file of that name and it is *not* a directory, then
1441                  * we need to delete it.  If it doesn't exist, then
1442                  * (perhaps recursively) create it. */
1443                 if (statret == 0 && !S_ISDIR(sx.st.st_mode)) {
1444                         if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0)
1445                                 goto skipping_dir_contents;
1446                         statret = -1;
1447                 }
1448                 if (dry_run && statret != 0) {
1449                         if (!dry_missing_dir)
1450                                 dry_missing_dir = file;
1451                         file->flags |= FLAG_MISSING_DIR;
1452                 }
1453                 real_ret = statret;
1454                 real_sx = sx;
1455                 if (file->flags & FLAG_DIR_CREATED)
1456                         statret = -1;
1457                 if (!preserve_perms) { /* See comment in non-dir code below. */
1458                         file->mode = dest_mode(file->mode, sx.st.st_mode,
1459                                                dflt_perms, statret == 0);
1460                 }
1461                 if (statret != 0 && basis_dir[0] != NULL) {
1462                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1463                                               itemizing, code);
1464                         if (j == -2) {
1465                                 itemizing = 0;
1466                                 code = FNONE;
1467                                 statret = 1;
1468                         } else if (j >= 0)
1469                                 statret = 1;
1470                 }
1471                 if (itemizing && f_out != -1) {
1472                         itemize(fname, file, ndx, statret, &sx,
1473                                 statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL);
1474                 }
1475                 if (real_ret != 0 && do_mkdir(fname,file->mode) < 0 && errno != EEXIST) {
1476                         if (!relative_paths || errno != ENOENT
1477                             || create_directory_path(fname) < 0
1478                             || (do_mkdir(fname, file->mode) < 0 && errno != EEXIST)) {
1479                                 rsyserr(FERROR_XFER, errno,
1480                                         "recv_generator: mkdir %s failed",
1481                                         full_fname(fname));
1482                           skipping_dir_contents:
1483                                 rprintf(FERROR,
1484                                     "*** Skipping any contents from this failed directory ***\n");
1485                                 skip_dir = file;
1486                                 file->flags |= FLAG_MISSING_DIR;
1487                                 goto cleanup;
1488                         }
1489                 }
1490 #ifdef SUPPORT_XATTRS
1491                 if (preserve_xattrs && statret == 1)
1492                         copy_xattrs(fnamecmpbuf, fname);
1493 #endif
1494                 if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0)
1495                     && INFO_GTE(NAME, 1) && code != FNONE && f_out != -1)
1496                         rprintf(code, "%s/\n", fname);
1497
1498                 /* We need to ensure that the dirs in the transfer have writable
1499                  * permissions during the time we are putting files within them.
1500                  * This is then fixed after the transfer is done. */
1501 #ifdef HAVE_CHMOD
1502                 if (!am_root && !(file->mode & S_IWUSR) && dir_tweaking) {
1503                         mode_t mode = file->mode | S_IWUSR;
1504                         if (do_chmod(fname, mode) < 0) {
1505                                 rsyserr(FERROR_XFER, errno,
1506                                         "failed to modify permissions on %s",
1507                                         full_fname(fname));
1508                         }
1509                         need_retouch_dir_perms = 1;
1510                 }
1511 #endif
1512
1513                 if (real_ret != 0 && one_file_system)
1514                         real_sx.st.st_dev = filesystem_dev;
1515                 if (inc_recurse) {
1516                         if (one_file_system) {
1517                                 uint32 *devp = F_DIR_DEV_P(file);
1518                                 DEV_MAJOR(devp) = major(real_sx.st.st_dev);
1519                                 DEV_MINOR(devp) = minor(real_sx.st.st_dev);
1520                         }
1521                 }
1522                 else if (delete_during && f_out != -1 && !phase
1523                     && !(file->flags & FLAG_MISSING_DIR)) {
1524                         if (file->flags & FLAG_CONTENT_DIR)
1525                                 delete_in_dir(fname, file, &real_sx.st.st_dev);
1526                         else
1527                                 change_local_filter_dir(fname, strlen(fname), F_DEPTH(file));
1528                 }
1529                 goto cleanup;
1530         }
1531
1532         /* If we're not preserving permissions, change the file-list's
1533          * mode based on the local permissions and some heuristics. */
1534         if (!preserve_perms) {
1535                 int exists = statret == 0 && !S_ISDIR(sx.st.st_mode);
1536                 file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms,
1537                                        exists);
1538         }
1539
1540 #ifdef SUPPORT_HARD_LINKS
1541         if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
1542          && hard_link_check(file, ndx, fname, statret, &sx, itemizing, code))
1543                 goto cleanup;
1544 #endif
1545
1546         if (preserve_links && S_ISLNK(file->mode)) {
1547 #ifdef SUPPORT_LINKS
1548                 const char *sl = F_SYMLINK(file);
1549                 if (safe_symlinks && unsafe_symlink(sl, fname)) {
1550                         if (INFO_GTE(NAME, 1)) {
1551                                 if (solo_file)
1552                                         fname = f_name(file, NULL);
1553                                 rprintf(FINFO,
1554                                         "ignoring unsafe symlink %s -> \"%s\"\n",
1555                                         full_fname(fname), sl);
1556                         }
1557                         return;
1558                 }
1559                 if (statret == 0) {
1560                         char lnk[MAXPATHLEN];
1561                         int len;
1562
1563                         if (!S_ISLNK(sx.st.st_mode))
1564                                 statret = -1;
1565                         else if ((len = readlink(fname, lnk, MAXPATHLEN-1)) > 0
1566                               && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') {
1567                                 /* The link is pointing to the right place. */
1568                                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1569                                 if (itemizing)
1570                                         itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1571 #if defined SUPPORT_HARD_LINKS && defined CAN_HARDLINK_SYMLINK
1572                                 if (preserve_hard_links && F_IS_HLINKED(file))
1573                                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1574 #endif
1575                                 if (remove_source_files == 1)
1576                                         goto return_with_success;
1577                                 goto cleanup;
1578                         }
1579                         /* Not the right symlink (or not a symlink), so
1580                          * delete it. */
1581                         if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_SYMLINK) != 0)
1582                                 goto cleanup;
1583                 } else if (basis_dir[0] != NULL) {
1584                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1585                                               itemizing, code);
1586                         if (j == -2) {
1587 #ifndef CAN_HARDLINK_SYMLINK
1588                                 if (link_dest) {
1589                                         /* Resort to --copy-dest behavior. */
1590                                 } else
1591 #endif
1592                                 if (!copy_dest)
1593                                         goto cleanup;
1594                                 itemizing = 0;
1595                                 code = FNONE;
1596                         } else if (j >= 0)
1597                                 statret = 1;
1598                 }
1599 #ifdef SUPPORT_HARD_LINKS
1600                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1601                         cur_flist->in_progress++;
1602                         goto cleanup;
1603                 }
1604 #endif
1605                 if (do_symlink(sl, fname) != 0) {
1606                         rsyserr(FERROR_XFER, errno, "symlink %s -> \"%s\" failed",
1607                                 full_fname(fname), sl);
1608                 } else {
1609                         set_file_attrs(fname, file, NULL, NULL, 0);
1610                         if (itemizing) {
1611                                 itemize(fname, file, ndx, statret, &sx,
1612                                         ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL);
1613                         }
1614                         if (code != FNONE && INFO_GTE(NAME, 1))
1615                                 rprintf(code, "%s -> %s\n", fname, sl);
1616 #ifdef SUPPORT_HARD_LINKS
1617                         if (preserve_hard_links && F_IS_HLINKED(file))
1618                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1619 #endif
1620                         /* This does not check remove_source_files == 1
1621                          * because this is one of the items that the old
1622                          * --remove-sent-files option would remove. */
1623                         if (remove_source_files)
1624                                 goto return_with_success;
1625                 }
1626 #endif
1627                 goto cleanup;
1628         }
1629
1630         if ((am_root && preserve_devices && IS_DEVICE(file->mode))
1631          || (preserve_specials && IS_SPECIAL(file->mode))) {
1632                 uint32 *devp = F_RDEV_P(file);
1633                 dev_t rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
1634                 if (statret == 0) {
1635                         int del_for_flag;
1636                         if (IS_DEVICE(file->mode)) {
1637                                 if (!IS_DEVICE(sx.st.st_mode))
1638                                         statret = -1;
1639                                 del_for_flag = DEL_FOR_DEVICE;
1640                         } else {
1641                                 if (!IS_SPECIAL(sx.st.st_mode))
1642                                         statret = -1;
1643                                 del_for_flag = DEL_FOR_SPECIAL;
1644                         }
1645                         if (statret == 0
1646                          && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT)
1647                          && sx.st.st_rdev == rdev) {
1648                                 /* The device or special file is identical. */
1649                                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1650                                 if (itemizing)
1651                                         itemize(fname, file, ndx, 0, &sx, 0, 0, NULL);
1652 #ifdef SUPPORT_HARD_LINKS
1653                                 if (preserve_hard_links && F_IS_HLINKED(file))
1654                                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1655 #endif
1656                                 if (remove_source_files == 1)
1657                                         goto return_with_success;
1658                                 goto cleanup;
1659                         }
1660                         if (delete_item(fname, sx.st.st_mode, del_opts | del_for_flag) != 0)
1661                                 goto cleanup;
1662                 } else if (basis_dir[0] != NULL) {
1663                         int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
1664                                               itemizing, code);
1665                         if (j == -2) {
1666 #ifndef CAN_HARDLINK_SPECIAL
1667                                 if (link_dest) {
1668                                         /* Resort to --copy-dest behavior. */
1669                                 } else
1670 #endif
1671                                 if (!copy_dest)
1672                                         goto cleanup;
1673                                 itemizing = 0;
1674                                 code = FNONE;
1675                         } else if (j >= 0)
1676                                 statret = 1;
1677                 }
1678 #ifdef SUPPORT_HARD_LINKS
1679                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1680                         cur_flist->in_progress++;
1681                         goto cleanup;
1682                 }
1683 #endif
1684                 if (DEBUG_GTE(GENR, 1)) {
1685                         rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n",
1686                                 fname, (int)file->mode,
1687                                 (long)major(rdev), (long)minor(rdev));
1688                 }
1689                 if (do_mknod(fname, file->mode, rdev) < 0) {
1690                         rsyserr(FERROR_XFER, errno, "mknod %s failed",
1691                                 full_fname(fname));
1692                 } else {
1693                         set_file_attrs(fname, file, NULL, NULL, 0);
1694                         if (itemizing) {
1695                                 itemize(fname, file, ndx, statret, &sx,
1696                                         ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL);
1697                         }
1698                         if (code != FNONE && INFO_GTE(NAME, 1))
1699                                 rprintf(code, "%s\n", fname);
1700 #ifdef SUPPORT_HARD_LINKS
1701                         if (preserve_hard_links && F_IS_HLINKED(file))
1702                                 finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1);
1703 #endif
1704                         if (remove_source_files == 1)
1705                                 goto return_with_success;
1706                 }
1707                 goto cleanup;
1708         }
1709
1710         if (!S_ISREG(file->mode)) {
1711                 if (solo_file)
1712                         fname = f_name(file, NULL);
1713                 rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname);
1714                 goto cleanup;
1715         }
1716
1717         if (max_size > 0 && F_LENGTH(file) > max_size) {
1718                 if (INFO_GTE(SKIP, 1)) {
1719                         if (solo_file)
1720                                 fname = f_name(file, NULL);
1721                         rprintf(FINFO, "%s is over max-size\n", fname);
1722                 }
1723                 goto cleanup;
1724         }
1725         if (min_size > 0 && F_LENGTH(file) < min_size) {
1726                 if (INFO_GTE(SKIP, 1)) {
1727                         if (solo_file)
1728                                 fname = f_name(file, NULL);
1729                         rprintf(FINFO, "%s is under min-size\n", fname);
1730                 }
1731                 goto cleanup;
1732         }
1733
1734         if (update_only > 0 && statret == 0
1735             && cmp_time(sx.st.st_mtime, file->modtime) > 0) {
1736                 if (INFO_GTE(SKIP, 1))
1737                         rprintf(FINFO, "%s is newer\n", fname);
1738 #ifdef SUPPORT_HARD_LINKS
1739                 if (F_IS_HLINKED(file))
1740                         handle_skipped_hlink(file, itemizing, code, f_out);
1741 #endif
1742                 goto cleanup;
1743         }
1744
1745         fnamecmp = fname;
1746         fnamecmp_type = FNAMECMP_FNAME;
1747
1748         if (statret == 0 && !S_ISREG(sx.st.st_mode)) {
1749                 if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_FILE) != 0)
1750                         goto cleanup;
1751                 statret = -1;
1752                 stat_errno = ENOENT;
1753         }
1754
1755         if (statret != 0 && basis_dir[0] != NULL) {
1756                 int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &sx,
1757                                       itemizing, code);
1758                 if (j == -2) {
1759                         if (remove_source_files == 1)
1760                                 goto return_with_success;
1761                         goto cleanup;
1762                 }
1763                 if (j >= 0) {
1764                         fnamecmp = fnamecmpbuf;
1765                         fnamecmp_type = j;
1766                         statret = 0;
1767                 }
1768         }
1769
1770         real_ret = statret;
1771         real_sx = sx;
1772
1773         if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL
1774             && link_stat(partialptr, &partial_st, 0) == 0
1775             && S_ISREG(partial_st.st_mode)) {
1776                 if (statret != 0)
1777                         goto prepare_to_open;
1778         } else
1779                 partialptr = NULL;
1780
1781         if (statret != 0 && fuzzy_dirlist) {
1782                 int j = find_fuzzy(file, fuzzy_dirlist);
1783                 if (j >= 0) {
1784                         fuzzy_file = fuzzy_dirlist->files[j];
1785                         f_name(fuzzy_file, fnamecmpbuf);
1786                         if (DEBUG_GTE(FUZZY, 1)) {
1787                                 rprintf(FINFO, "fuzzy basis selected for %s: %s\n",
1788                                         fname, fnamecmpbuf);
1789                         }
1790                         sx.st.st_size = F_LENGTH(fuzzy_file);
1791                         statret = 0;
1792                         fnamecmp = fnamecmpbuf;
1793                         fnamecmp_type = FNAMECMP_FUZZY;
1794                 }
1795         }
1796
1797         if (statret != 0) {
1798 #ifdef SUPPORT_HARD_LINKS
1799                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1800                         cur_flist->in_progress++;
1801                         goto cleanup;
1802                 }
1803 #endif
1804                 if (stat_errno == ENOENT)
1805                         goto notify_others;
1806                 rsyserr(FERROR_XFER, stat_errno, "recv_generator: failed to stat %s",
1807                         full_fname(fname));
1808                 goto cleanup;
1809         }
1810
1811         if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH)
1812                 ;
1813         else if (fnamecmp_type == FNAMECMP_FUZZY)
1814                 ;
1815         else if (unchanged_file(fnamecmp, file, &sx.st)) {
1816                 if (partialptr) {
1817                         do_unlink(partialptr);
1818                         handle_partial_dir(partialptr, PDIR_DELETE);
1819                 }
1820                 set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT);
1821                 if (itemizing)
1822                         itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL);
1823 #ifdef SUPPORT_HARD_LINKS
1824                 if (preserve_hard_links && F_IS_HLINKED(file))
1825                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1826 #endif
1827                 if (remove_source_files != 1)
1828                         goto cleanup;
1829           return_with_success:
1830                 if (!dry_run)
1831                         send_msg_int(MSG_SUCCESS, ndx);
1832                 goto cleanup;
1833         }
1834
1835         if (append_mode > 0 && sx.st.st_size >= F_LENGTH(file)) {
1836 #ifdef SUPPORT_HARD_LINKS
1837                 if (F_IS_HLINKED(file))
1838                         handle_skipped_hlink(file, itemizing, code, f_out);
1839 #endif
1840                 goto cleanup;
1841         }
1842
1843   prepare_to_open:
1844         if (partialptr) {
1845                 sx.st = partial_st;
1846                 fnamecmp = partialptr;
1847                 fnamecmp_type = FNAMECMP_PARTIAL_DIR;
1848                 statret = 0;
1849         }
1850
1851         if (!do_xfers)
1852                 goto notify_others;
1853
1854         if (read_batch || whole_file) {
1855                 if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1856                         if (!(backupptr = get_backup_name(fname)))
1857                                 goto cleanup;
1858                         if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS)))
1859                                 goto pretend_missing;
1860                         if (copy_file(fname, backupptr, -1, back_file->mode, 1) < 0) {
1861                                 unmake_file(back_file);
1862                                 back_file = NULL;
1863                                 goto cleanup;
1864                         }
1865                 }
1866                 goto notify_others;
1867         }
1868
1869         if (fuzzy_dirlist) {
1870                 int j = flist_find(fuzzy_dirlist, file);
1871                 if (j >= 0) /* don't use changing file as future fuzzy basis */
1872                         fuzzy_dirlist->files[j]->flags |= FLAG_FILE_SENT;
1873         }
1874
1875         /* open the file */
1876         if ((fd = do_open(fnamecmp, O_RDONLY, 0)) < 0) {
1877                 rsyserr(FERROR, errno, "failed to open %s, continuing",
1878                         full_fname(fnamecmp));
1879           pretend_missing:
1880                 /* pretend the file didn't exist */
1881 #ifdef SUPPORT_HARD_LINKS
1882                 if (preserve_hard_links && F_HLINK_NOT_LAST(file)) {
1883                         cur_flist->in_progress++;
1884                         goto cleanup;
1885                 }
1886 #endif
1887                 statret = real_ret = -1;
1888                 goto notify_others;
1889         }
1890
1891         if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) {
1892                 if (!(backupptr = get_backup_name(fname))) {
1893                         close(fd);
1894                         goto cleanup;
1895                 }
1896                 if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) {
1897                         close(fd);
1898                         goto pretend_missing;
1899                 }
1900                 if (robust_unlink(backupptr) && errno != ENOENT) {
1901                         rsyserr(FERROR_XFER, errno, "unlink %s",
1902                                 full_fname(backupptr));
1903                         unmake_file(back_file);
1904                         back_file = NULL;
1905                         close(fd);
1906                         goto cleanup;
1907                 }
1908                 if ((f_copy = do_open(backupptr, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
1909                         int save_errno = errno ? errno : EINVAL; /* 0 paranoia */
1910                         if (errno == ENOENT && make_bak_dir(backupptr) == 0) {
1911                                 if ((f_copy = do_open(backupptr, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0)
1912                                         save_errno = errno ? errno : save_errno;
1913                                 else
1914                                         save_errno = 0;
1915                         }
1916                         if (save_errno) {
1917                                 rsyserr(FERROR_XFER, save_errno, "open %s", full_fname(backupptr));
1918                                 unmake_file(back_file);
1919                                 back_file = NULL;
1920                                 close(fd);
1921                                 goto cleanup;
1922                         }
1923                 }
1924                 fnamecmp_type = FNAMECMP_BACKUP;
1925         }
1926
1927         if (DEBUG_GTE(DELTASUM, 3)) {
1928                 rprintf(FINFO, "gen mapped %s of size %s\n",
1929                         fnamecmp, big_num(sx.st.st_size));
1930         }
1931
1932         if (DEBUG_GTE(DELTASUM, 2))
1933                 rprintf(FINFO, "generating and sending sums for %d\n", ndx);
1934
1935   notify_others:
1936         if (remove_source_files && !delay_updates && !phase && !dry_run)
1937                 increment_active_files(ndx, itemizing, code);
1938         if (inc_recurse && !dry_run)
1939                 cur_flist->in_progress++;
1940 #ifdef SUPPORT_HARD_LINKS
1941         if (preserve_hard_links && F_IS_HLINKED(file))
1942                 file->flags |= FLAG_FILE_SENT;
1943 #endif
1944         write_ndx(f_out, ndx);
1945         if (itemizing) {
1946                 int iflags = ITEM_TRANSFER;
1947                 if (always_checksum > 0)
1948                         iflags |= ITEM_REPORT_CHANGE;
1949                 if (fnamecmp_type != FNAMECMP_FNAME)
1950                         iflags |= ITEM_BASIS_TYPE_FOLLOWS;
1951                 if (fnamecmp_type == FNAMECMP_FUZZY)
1952                         iflags |= ITEM_XNAME_FOLLOWS;
1953                 itemize(fnamecmp, file, -1, real_ret, &real_sx, iflags, fnamecmp_type,
1954                         fuzzy_file ? fuzzy_file->basename : NULL);
1955 #ifdef SUPPORT_ACLS
1956                 if (preserve_acls)
1957                         free_acl(&real_sx);
1958 #endif
1959 #ifdef SUPPORT_XATTRS
1960                 if (preserve_xattrs)
1961                         free_xattr(&real_sx);
1962 #endif
1963         }
1964
1965         if (!do_xfers) {
1966 #ifdef SUPPORT_HARD_LINKS
1967                 if (preserve_hard_links && F_IS_HLINKED(file))
1968                         finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1);
1969 #endif
1970                 goto cleanup;
1971         }
1972         if (read_batch)
1973                 goto cleanup;
1974
1975         if (statret != 0 || whole_file)
1976                 write_sum_head(f_out, NULL);
1977         else if (sx.st.st_size <= 0) {
1978                 write_sum_head(f_out, NULL);
1979                 close(fd);
1980         } else {
1981                 if (generate_and_send_sums(fd, sx.st.st_size, f_out, f_copy) < 0) {
1982                         rprintf(FWARNING,
1983                             "WARNING: file is too large for checksum sending: %s\n",
1984                             fnamecmp);
1985                         write_sum_head(f_out, NULL);
1986                 }
1987                 close(fd);
1988         }
1989
1990   cleanup:
1991         if (back_file) {
1992                 int save_preserve_xattrs = preserve_xattrs;
1993                 if (f_copy >= 0)
1994                         close(f_copy);
1995 #ifdef SUPPORT_XATTRS
1996                 if (preserve_xattrs) {
1997                         copy_xattrs(fname, backupptr);
1998                         preserve_xattrs = 0;
1999                 }
2000 #endif
2001                 set_file_attrs(backupptr, back_file, NULL, NULL, 0);
2002                 preserve_xattrs = save_preserve_xattrs;
2003                 if (INFO_GTE(BACKUP, 1)) {
2004                         rprintf(FINFO, "backed up %s to %s\n",
2005                                 fname, backupptr);
2006                 }
2007                 unmake_file(back_file);
2008         }
2009
2010 #ifdef SUPPORT_ACLS
2011         if (preserve_acls)
2012                 free_acl(&sx);
2013 #endif
2014 #ifdef SUPPORT_XATTRS
2015         if (preserve_xattrs)
2016                 free_xattr(&sx);
2017 #endif
2018         return;
2019 }
2020
2021 #ifdef SUPPORT_HARD_LINKS
2022 static void handle_skipped_hlink(struct file_struct *file, int itemizing,
2023                                  enum logcode code, int f_out)
2024 {
2025         char fbuf[MAXPATHLEN];
2026         int new_last_ndx;
2027         struct file_list *save_flist = cur_flist;
2028
2029         /* If we skip the last item in a chain of links and there was a
2030          * prior non-skipped hard-link waiting to finish, finish it now. */
2031         if ((new_last_ndx = skip_hard_link(file, &cur_flist)) < 0)
2032                 return;
2033
2034         file = cur_flist->files[new_last_ndx - cur_flist->ndx_start];
2035         cur_flist->in_progress--; /* undo prior increment */
2036         f_name(file, fbuf);
2037         recv_generator(fbuf, file, new_last_ndx, itemizing, code, f_out);
2038
2039         cur_flist = save_flist;
2040 }
2041 #endif
2042
2043 static void touch_up_dirs(struct file_list *flist, int ndx)
2044 {
2045         static int counter = 0;
2046         struct file_struct *file;
2047         char *fname;
2048         int i, start, end;
2049
2050         if (ndx < 0) {
2051                 start = 0;
2052                 end = flist->used - 1;
2053         } else
2054                 start = end = ndx;
2055
2056         /* Fix any directory permissions that were modified during the
2057          * transfer and/or re-set any tweaked modified-time values. */
2058         for (i = start; i <= end; i++, counter++) {
2059                 file = flist->files[i];
2060                 if (!S_ISDIR(file->mode)
2061                  || (!implied_dirs && file->flags & FLAG_IMPLIED_DIR))
2062                         continue;
2063                 if (DEBUG_GTE(TIME, 2)) {
2064                         fname = f_name(file, NULL);
2065                         rprintf(FINFO, "touch_up_dirs: %s (%d)\n",
2066                                 NS(fname), i);
2067                 }
2068                 if (!F_IS_ACTIVE(file) || file->flags & FLAG_MISSING_DIR
2069                  || (!need_retouch_dir_times && file->mode & S_IWUSR))
2070                         continue;
2071                 fname = f_name(file, NULL);
2072                 if (!(file->mode & S_IWUSR))
2073                         do_chmod(fname, file->mode);
2074                 if (need_retouch_dir_times) {
2075                         STRUCT_STAT st;
2076                         if (link_stat(fname, &st, 0) == 0
2077                          && cmp_time(st.st_mtime, file->modtime) != 0)
2078                                 set_modtime(fname, file->modtime, file->mode);
2079                 }
2080                 if (counter >= loopchk_limit) {
2081                         if (allowed_lull)
2082                                 maybe_send_keepalive();
2083                         else
2084                                 maybe_flush_socket(0);
2085                         counter = 0;
2086                 }
2087         }
2088 }
2089
2090 void check_for_finished_files(int itemizing, enum logcode code, int check_redo)
2091 {
2092         struct file_struct *file;
2093         struct file_list *flist;
2094         char fbuf[MAXPATHLEN];
2095         int ndx;
2096
2097         while (1) {
2098 #ifdef SUPPORT_HARD_LINKS
2099                 if (preserve_hard_links && (ndx = get_hlink_num()) != -1) {
2100                         flist = flist_for_ndx(ndx, "check_for_finished_files.1");
2101                         file = flist->files[ndx - flist->ndx_start];
2102                         assert(file->flags & FLAG_HLINKED);
2103                         finish_hard_link(file, f_name(file, fbuf), ndx, NULL, itemizing, code, -1);
2104                         flist->in_progress--;
2105                         continue;
2106                 }
2107 #endif
2108
2109                 if (check_redo && (ndx = get_redo_num()) != -1) {
2110                         csum_length = SUM_LENGTH;
2111                         max_size = -max_size;
2112                         min_size = -min_size;
2113                         ignore_existing = -ignore_existing;
2114                         ignore_non_existing = -ignore_non_existing;
2115                         update_only = -update_only;
2116                         always_checksum = -always_checksum;
2117                         size_only = -size_only;
2118                         append_mode = -append_mode;
2119                         make_backups = -make_backups; /* avoid dup backup w/inplace */
2120                         ignore_times++;
2121
2122                         flist = cur_flist;
2123                         cur_flist = flist_for_ndx(ndx, "check_for_finished_files.2");
2124
2125                         file = cur_flist->files[ndx - cur_flist->ndx_start];
2126                         if (solo_file)
2127                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2128                         else
2129                                 f_name(file, fbuf);
2130                         recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out);
2131                         cur_flist->to_redo--;
2132
2133                         cur_flist = flist;
2134
2135                         csum_length = SHORT_SUM_LENGTH;
2136                         max_size = -max_size;
2137                         min_size = -min_size;
2138                         ignore_existing = -ignore_existing;
2139                         ignore_non_existing = -ignore_non_existing;
2140                         update_only = -update_only;
2141                         always_checksum = -always_checksum;
2142                         size_only = -size_only;
2143                         append_mode = -append_mode;
2144                         make_backups = -make_backups;
2145                         ignore_times--;
2146                         continue;
2147                 }
2148
2149                 if (cur_flist == first_flist)
2150                         break;
2151
2152                 /* We only get here if inc_recurse is enabled. */
2153                 if (first_flist->in_progress || first_flist->to_redo)
2154                         break;
2155
2156                 if (!read_batch) {
2157                         write_ndx(sock_f_out, NDX_DONE);
2158                         maybe_flush_socket(1);
2159                 }
2160
2161                 if (delete_during == 2 || !dir_tweaking) {
2162                         /* Skip directory touch-up. */
2163                 } else if (first_flist->parent_ndx >= 0)
2164                         touch_up_dirs(dir_flist, first_flist->parent_ndx);
2165
2166                 flist_free(first_flist); /* updates first_flist */
2167         }
2168 }
2169
2170 void generate_files(int f_out, const char *local_name)
2171 {
2172         int i, ndx, next_loopchk = 0;
2173         char fbuf[MAXPATHLEN];
2174         int itemizing;
2175         enum logcode code;
2176         int save_info_flist = info_levels[INFO_FLIST];
2177         int save_info_progress = info_levels[INFO_PROGRESS];
2178
2179         if (protocol_version >= 29) {
2180                 itemizing = 1;
2181                 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
2182                 code = logfile_format_has_i ? FNONE : FLOG;
2183         } else if (am_daemon) {
2184                 itemizing = logfile_format_has_i && do_xfers;
2185                 maybe_ATTRS_REPORT = ATTRS_REPORT;
2186                 code = itemizing || !do_xfers ? FCLIENT : FINFO;
2187         } else if (!am_server) {
2188                 itemizing = stdout_format_has_i;
2189                 maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT;
2190                 code = itemizing ? FNONE : FINFO;
2191         } else {
2192                 itemizing = 0;
2193                 maybe_ATTRS_REPORT = ATTRS_REPORT;
2194                 code = FINFO;
2195         }
2196         solo_file = local_name;
2197         dir_tweaking = !(list_only || solo_file || dry_run);
2198         need_retouch_dir_times = preserve_times > 1;
2199         loopchk_limit = allowed_lull ? allowed_lull * 5 : 200;
2200         symlink_timeset_failed_flags = ITEM_REPORT_TIME
2201             | (protocol_version >= 30 || !am_server ? ITEM_REPORT_TIMEFAIL : 0);
2202         implied_dirs_are_missing = relative_paths && !implied_dirs && protocol_version < 30;
2203
2204         if (DEBUG_GTE(GENR, 1))
2205                 rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid());
2206
2207         if (delete_before && !solo_file && cur_flist->used > 0)
2208                 do_delete_pass();
2209         if (delete_during == 2) {
2210                 deldelay_size = BIGPATHBUFLEN * 4;
2211                 deldelay_buf = new_array(char, deldelay_size);
2212                 if (!deldelay_buf)
2213                         out_of_memory("delete-delay");
2214         }
2215         info_levels[INFO_FLIST] = info_levels[INFO_PROGRESS] = 0;
2216
2217         if (append_mode > 0 || whole_file < 0)
2218                 whole_file = 0;
2219         if (DEBUG_GTE(FLIST, 1)) {
2220                 rprintf(FINFO, "delta-transmission %s\n",
2221                         whole_file
2222                         ? "disabled for local transfer or --whole-file"
2223                         : "enabled");
2224         }
2225
2226         /* Since we often fill up the outgoing socket and then just sit around
2227          * waiting for the other 2 processes to do their thing, we don't want
2228          * to exit on a timeout.  If the data stops flowing, the receiver will
2229          * notice that and let us know via the redo pipe (or its closing). */
2230         ignore_timeout = 1;
2231
2232         dflt_perms = (ACCESSPERMS & ~orig_umask);
2233
2234         do {
2235 #ifdef SUPPORT_HARD_LINKS
2236                 if (preserve_hard_links && inc_recurse) {
2237                         while (!flist_eof && file_total < FILECNT_LOOKAHEAD/2)
2238                                 wait_for_receiver();
2239                 }
2240 #endif
2241
2242                 if (inc_recurse && cur_flist->parent_ndx >= 0) {
2243                         struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx];
2244                         if (solo_file)
2245                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2246                         else
2247                                 f_name(fp, fbuf);
2248                         ndx = cur_flist->ndx_start - 1;
2249                         recv_generator(fbuf, fp, ndx, itemizing, code, f_out);
2250                         if (delete_during && dry_run < 2 && !list_only
2251                          && !(fp->flags & FLAG_MISSING_DIR)) {
2252                                 if (fp->flags & FLAG_CONTENT_DIR) {
2253                                         dev_t dirdev;
2254                                         if (one_file_system) {
2255                                                 uint32 *devp = F_DIR_DEV_P(fp);
2256                                                 dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
2257                                         } else
2258                                                 dirdev = MAKEDEV(0, 0);
2259                                         delete_in_dir(fbuf, fp, &dirdev);
2260                                 } else
2261                                         change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(fp));
2262                         }
2263                 }
2264                 for (i = cur_flist->low; i <= cur_flist->high; i++) {
2265                         struct file_struct *file = cur_flist->sorted[i];
2266
2267                         if (!F_IS_ACTIVE(file))
2268                                 continue;
2269
2270                         if (unsort_ndx)
2271                                 ndx = F_NDX(file);
2272                         else
2273                                 ndx = i + cur_flist->ndx_start;
2274
2275                         if (solo_file)
2276                                 strlcpy(fbuf, solo_file, sizeof fbuf);
2277                         else
2278                                 f_name(file, fbuf);
2279                         recv_generator(fbuf, file, ndx, itemizing, code, f_out);
2280
2281                         check_for_finished_files(itemizing, code, 0);
2282
2283                         if (i + cur_flist->ndx_start >= next_loopchk) {
2284                                 if (allowed_lull)
2285                                         maybe_send_keepalive();
2286                                 else
2287                                         maybe_flush_socket(0);
2288                                 next_loopchk += loopchk_limit;
2289                         }
2290                 }
2291
2292                 if (!inc_recurse) {
2293                         write_ndx(f_out, NDX_DONE);
2294                         break;
2295                 }
2296
2297                 while (1) {
2298                         check_for_finished_files(itemizing, code, 1);
2299                         if (cur_flist->next || flist_eof)
2300                                 break;
2301                         wait_for_receiver();
2302                 }
2303         } while ((cur_flist = cur_flist->next) != NULL);
2304
2305         if (read_batch && inc_recurse)
2306                 write_ndx(f_out, NDX_DONE);
2307
2308         if (delete_during)
2309                 delete_in_dir(NULL, NULL, &dev_zero);
2310         phase++;
2311         if (DEBUG_GTE(GENR, 1))
2312                 rprintf(FINFO, "generate_files phase=%d\n", phase);
2313
2314         while (1) {
2315                 check_for_finished_files(itemizing, code, 1);
2316                 if (msgdone_cnt)
2317                         break;
2318                 wait_for_receiver();
2319         }
2320
2321         phase++;
2322         if (DEBUG_GTE(GENR, 1))
2323                 rprintf(FINFO, "generate_files phase=%d\n", phase);
2324
2325         write_ndx(f_out, NDX_DONE);
2326         write_del_stats(f_out);
2327
2328         /* Reduce round-trip lag-time for a useless delay-updates phase. */
2329         if (protocol_version >= 29 && !delay_updates)
2330                 write_ndx(f_out, NDX_DONE);
2331
2332         /* Read MSG_DONE for the redo phase (and any prior messages). */
2333         while (1) {
2334                 check_for_finished_files(itemizing, code, 0);
2335                 if (msgdone_cnt > 1)
2336                         break;
2337                 wait_for_receiver();
2338         }
2339
2340         if (protocol_version >= 29) {
2341                 phase++;
2342                 if (DEBUG_GTE(GENR, 1))
2343                         rprintf(FINFO, "generate_files phase=%d\n", phase);
2344                 if (delay_updates)
2345                         write_ndx(f_out, NDX_DONE);
2346                 /* Read MSG_DONE for delay-updates phase & prior messages. */
2347                 while (msgdone_cnt == 2)
2348                         wait_for_receiver();
2349         }
2350
2351         info_levels[INFO_FLIST] = save_info_flist;
2352         info_levels[INFO_PROGRESS] = save_info_progress;
2353
2354         if (delete_during == 2)
2355                 do_delayed_deletions(fbuf);
2356         if (delete_after && !solo_file && file_total > 0)
2357                 do_delete_pass();
2358
2359         if ((need_retouch_dir_perms || need_retouch_dir_times)
2360          && dir_tweaking && (!inc_recurse || delete_during == 2))
2361                 touch_up_dirs(dir_flist, -1);
2362
2363         if (max_delete >= 0 && skipped_deletes) {
2364                 rprintf(FWARNING,
2365                         "Deletions stopped due to --max-delete limit (%d skipped)\n",
2366                         skipped_deletes);
2367                 io_error |= IOERR_DEL_LIMIT;
2368         }
2369
2370         if (DEBUG_GTE(GENR, 1))
2371                 rprintf(FINFO, "generate_files finished\n");
2372 }