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