Fixed a hang in the inc_recurse batch-reading code.
[rsync.git] / receiver.c
1 /*
2  * Routines only used by the receiving process.
3  *
4  * Copyright (C) 1996-2000 Andrew Tridgell
5  * Copyright (C) 1996 Paul Mackerras
6  * Copyright (C) 2003-2009 Wayne Davison
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 3 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, visit the http://fsf.org website.
20  */
21
22 #include "rsync.h"
23
24 extern int verbose;
25 extern int dry_run;
26 extern int do_xfers;
27 extern int am_server;
28 extern int do_progress;
29 extern int inc_recurse;
30 extern int log_before_transfer;
31 extern int stdout_format_has_i;
32 extern int logfile_format_has_i;
33 extern int csum_length;
34 extern int read_batch;
35 extern int write_batch;
36 extern int batch_gen_fd;
37 extern int protocol_version;
38 extern int relative_paths;
39 extern int preserve_hard_links;
40 extern int preserve_perms;
41 extern int preserve_xattrs;
42 extern int basis_dir_cnt;
43 extern int make_backups;
44 extern int cleanup_got_literal;
45 extern int remove_source_files;
46 extern int append_mode;
47 extern int sparse_files;
48 extern int keep_partial;
49 extern int checksum_seed;
50 extern int inplace;
51 extern int delay_updates;
52 extern mode_t orig_umask;
53 extern struct stats stats;
54 extern char *tmpdir;
55 extern char *partial_dir;
56 extern char *basis_dir[];
57 extern struct file_list *cur_flist, *first_flist, *dir_flist;
58 extern struct filter_list_struct daemon_filter_list;
59
60 static struct bitbag *delayed_bits = NULL;
61 static int phase = 0, redoing = 0;
62 static flist_ndx_list batch_redo_list;
63 /* We're either updating the basis file or an identical copy: */
64 static int updating_basis_or_equiv;
65
66 /*
67  * get_tmpname() - create a tmp filename for a given filename
68  *
69  *   If a tmpdir is defined, use that as the directory to
70  *   put it in.  Otherwise, the tmp filename is in the same
71  *   directory as the given name.  Note that there may be no
72  *   directory at all in the given name!
73  *
74  *   The tmp filename is basically the given filename with a
75  *   dot prepended, and .XXXXXX appended (for mkstemp() to
76  *   put its unique gunk in).  Take care to not exceed
77  *   either the MAXPATHLEN or NAME_MAX, esp. the last, as
78  *   the basename basically becomes 8 chars longer. In that
79  *   case, the original name is shortened sufficiently to
80  *   make it all fit.
81  *
82  *   Of course, there's no real reason for the tmp name to
83  *   look like the original, except to satisfy us humans.
84  *   As long as it's unique, rsync will work.
85  */
86
87 int get_tmpname(char *fnametmp, const char *fname)
88 {
89         int maxname, added, length = 0;
90         const char *f;
91
92         if (tmpdir) {
93                 /* Note: this can't overflow, so the return value is safe */
94                 length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
95                 fnametmp[length++] = '/';
96         }
97
98         if ((f = strrchr(fname, '/')) != NULL) {
99                 ++f;
100                 if (!tmpdir) {
101                         length = f - fname;
102                         /* copy up to and including the slash */
103                         strlcpy(fnametmp, fname, length + 1);
104                 }
105         } else
106                 f = fname;
107         fnametmp[length++] = '.';
108
109         /* The maxname value is bufsize, and includes space for the '\0'.
110          * (Note that NAME_MAX get -8 for the leading '.' above.) */
111         maxname = MIN(MAXPATHLEN - 7 - length, NAME_MAX - 8);
112
113         if (maxname < 1) {
114                 rprintf(FERROR_XFER, "temporary filename too long: %s\n", fname);
115                 fnametmp[0] = '\0';
116                 return 0;
117         }
118
119         added = strlcpy(fnametmp + length, f, maxname);
120         if (added >= maxname)
121                 added = maxname - 1;
122         memcpy(fnametmp + length + added, ".XXXXXX", 8);
123
124         return 1;
125 }
126
127 /* Opens a temporary file for writing.
128  * Success: Writes name into fnametmp, returns fd.
129  * Failure: Clobbers fnametmp, returns -1.
130  * Calling cleanup_set() is the caller's job. */
131 int open_tmpfile(char *fnametmp, const char *fname, struct file_struct *file)
132 {
133         int fd;
134
135         if (!get_tmpname(fnametmp, fname))
136                 return -1;
137
138         /* We initially set the perms without the setuid/setgid bits or group
139          * access to ensure that there is no race condition.  They will be
140          * correctly updated after the right owner and group info is set.
141          * (Thanks to snabb@epipe.fi for pointing this out.) */
142         fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
143
144 #if 0
145         /* In most cases parent directories will already exist because their
146          * information should have been previously transferred, but that may
147          * not be the case with -R */
148         if (fd == -1 && relative_paths && errno == ENOENT
149             && create_directory_path(fnametmp) == 0) {
150                 /* Get back to name with XXXXXX in it. */
151                 get_tmpname(fnametmp, fname);
152                 fd = do_mkstemp(fnametmp, file->mode & INITACCESSPERMS);
153         }
154 #endif
155
156         if (fd == -1) {
157                 rsyserr(FERROR_XFER, errno, "mkstemp %s failed",
158                         full_fname(fnametmp));
159                 return -1;
160         }
161
162         return fd;
163 }
164
165 static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
166                         const char *fname, int fd, OFF_T total_size)
167 {
168         static char file_sum1[MAX_DIGEST_LEN];
169         static char file_sum2[MAX_DIGEST_LEN];
170         struct map_struct *mapbuf;
171         struct sum_struct sum;
172         int32 len, sum_len;
173         OFF_T offset = 0;
174         OFF_T offset2;
175         char *data;
176         int32 i;
177         char *map = NULL;
178
179         read_sum_head(f_in, &sum);
180
181         if (fd_r >= 0 && size_r > 0) {
182                 int32 read_size = MAX(sum.blength * 2, 16*1024);
183                 mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
184                 if (verbose > 2) {
185                         rprintf(FINFO, "recv mapped %s of size %.0f\n",
186                                 fname_r, (double)size_r);
187                 }
188         } else
189                 mapbuf = NULL;
190
191         sum_init(checksum_seed);
192
193         if (append_mode > 0) {
194                 OFF_T j;
195                 sum.flength = (OFF_T)sum.count * sum.blength;
196                 if (sum.remainder)
197                         sum.flength -= sum.blength - sum.remainder;
198                 if (append_mode == 2) {
199                         for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
200                                 if (do_progress)
201                                         show_progress(offset, total_size);
202                                 sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
203                                            CHUNK_SIZE);
204                                 offset = j;
205                         }
206                         if (offset < sum.flength) {
207                                 int32 len = (int32)(sum.flength - offset);
208                                 if (do_progress)
209                                         show_progress(offset, total_size);
210                                 sum_update(map_ptr(mapbuf, offset, len), len);
211                         }
212                 }
213                 offset = sum.flength;
214                 if (fd != -1 && (j = do_lseek(fd, offset, SEEK_SET)) != offset) {
215                         rsyserr(FERROR_XFER, errno, "lseek of %s returned %.0f, not %.0f",
216                                 full_fname(fname), (double)j, (double)offset);
217                         exit_cleanup(RERR_FILEIO);
218                 }
219         }
220
221         while ((i = recv_token(f_in, &data)) != 0) {
222                 if (do_progress)
223                         show_progress(offset, total_size);
224
225                 if (i > 0) {
226                         if (verbose > 3) {
227                                 rprintf(FINFO,"data recv %d at %.0f\n",
228                                         i,(double)offset);
229                         }
230
231                         stats.literal_data += i;
232                         cleanup_got_literal = 1;
233
234                         sum_update(data, i);
235
236                         if (fd != -1 && write_file(fd,data,i) != i)
237                                 goto report_write_error;
238                         offset += i;
239                         continue;
240                 }
241
242                 i = -(i+1);
243                 offset2 = i * (OFF_T)sum.blength;
244                 len = sum.blength;
245                 if (i == (int)sum.count-1 && sum.remainder != 0)
246                         len = sum.remainder;
247
248                 stats.matched_data += len;
249
250                 if (verbose > 3) {
251                         rprintf(FINFO,
252                                 "chunk[%d] of size %ld at %.0f offset=%.0f\n",
253                                 i, (long)len, (double)offset2, (double)offset);
254                 }
255
256                 if (mapbuf) {
257                         map = map_ptr(mapbuf,offset2,len);
258
259                         see_token(map, len);
260                         sum_update(map, len);
261                 }
262
263                 if (updating_basis_or_equiv) {
264                         if (offset == offset2 && fd != -1) {
265                                 OFF_T pos;
266                                 if (flush_write_file(fd) < 0)
267                                         goto report_write_error;
268                                 offset += len;
269                                 if ((pos = do_lseek(fd, len, SEEK_CUR)) != offset) {
270                                         rsyserr(FERROR_XFER, errno,
271                                                 "lseek of %s returned %.0f, not %.0f",
272                                                 full_fname(fname),
273                                                 (double)pos, (double)offset);
274                                         exit_cleanup(RERR_FILEIO);
275                                 }
276                                 continue;
277                         }
278                 }
279                 if (fd != -1 && map && write_file(fd, map, len) != (int)len)
280                         goto report_write_error;
281                 offset += len;
282         }
283
284         if (flush_write_file(fd) < 0)
285                 goto report_write_error;
286
287 #ifdef HAVE_FTRUNCATE
288         if (inplace && fd != -1
289          && ftruncate(fd, offset) < 0) {
290                 rsyserr(FERROR_XFER, errno, "ftruncate failed on %s",
291                         full_fname(fname));
292         }
293 #endif
294
295         if (do_progress)
296                 end_progress(total_size);
297
298         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
299             report_write_error:
300                 rsyserr(FERROR_XFER, errno, "write failed on %s",
301                         full_fname(fname));
302                 exit_cleanup(RERR_FILEIO);
303         }
304
305         sum_len = sum_end(file_sum1);
306
307         if (mapbuf)
308                 unmap_file(mapbuf);
309
310         read_buf(f_in, file_sum2, sum_len);
311         if (verbose > 2)
312                 rprintf(FINFO,"got file_sum\n");
313         if (fd != -1 && memcmp(file_sum1, file_sum2, sum_len) != 0)
314                 return 0;
315         return 1;
316 }
317
318
319 static void discard_receive_data(int f_in, OFF_T length)
320 {
321         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
322 }
323
324 static void handle_delayed_updates(char *local_name)
325 {
326         char *fname, *partialptr;
327         int ndx;
328
329         for (ndx = -1; (ndx = bitbag_next_bit(delayed_bits, ndx)) >= 0; ) {
330                 struct file_struct *file = cur_flist->files[ndx];
331                 fname = local_name ? local_name : f_name(file, NULL);
332                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
333                         if (make_backups > 0 && !make_backup(fname))
334                                 continue;
335                         if (verbose > 2) {
336                                 rprintf(FINFO, "renaming %s to %s\n",
337                                         partialptr, fname);
338                         }
339                         /* We don't use robust_rename() here because the
340                          * partial-dir must be on the same drive. */
341                         if (do_rename(partialptr, fname) < 0) {
342                                 rsyserr(FERROR_XFER, errno,
343                                         "rename failed for %s (from %s)",
344                                         full_fname(fname), partialptr);
345                         } else {
346                                 if (remove_source_files
347                                  || (preserve_hard_links && F_IS_HLINKED(file)))
348                                         send_msg_int(MSG_SUCCESS, ndx);
349                                 handle_partial_dir(partialptr, PDIR_DELETE);
350                         }
351                 }
352         }
353 }
354
355 static void no_batched_update(int ndx, BOOL is_redo)
356 {
357         struct file_list *flist = flist_for_ndx(ndx, "no_batched_update");
358         struct file_struct *file = flist->files[ndx - flist->ndx_start];
359
360         rprintf(FERROR_XFER, "(No batched update for%s \"%s\")\n",
361                 is_redo ? " resend of" : "", f_name(file, NULL));
362
363         if (inc_recurse)
364                 send_msg_int(MSG_NO_SEND, ndx);
365 }
366
367 static int we_want_redo(int desired_ndx)
368 {
369         static int redo_ndx = -1;
370
371         while (redo_ndx < desired_ndx) {
372                 if (redo_ndx >= 0)
373                         no_batched_update(redo_ndx, True);
374                 if ((redo_ndx = flist_ndx_pop(&batch_redo_list)) < 0)
375                         return 0;
376         }
377
378         if (redo_ndx == desired_ndx) {
379                 redo_ndx = -1;
380                 return 1;
381         }
382
383         return 0;
384 }
385
386 static int gen_wants_ndx(int desired_ndx)
387 {
388         static int next_ndx = -1;
389         static int done_cnt = 0;
390         static BOOL got_eof = False;
391         int flist_num = first_flist->flist_num;
392
393         if (got_eof)
394                 return 0;
395
396         while (next_ndx < desired_ndx) {
397                 if (inc_recurse && flist_num <= done_cnt)
398                         return 0;
399                 if (next_ndx >= 0)
400                         no_batched_update(next_ndx, False);
401                 if ((next_ndx = read_int(batch_gen_fd)) < 0) {
402                         if (inc_recurse) {
403                                 done_cnt++;
404                                 continue;
405                         }
406                         got_eof = True;
407                         return 0;
408                 }
409         }
410
411         if (next_ndx == desired_ndx) {
412                 next_ndx = -1;
413                 return 1;
414         }
415
416         return 0;
417 }
418
419 /**
420  * main routine for receiver process.
421  *
422  * Receiver process runs on the same host as the generator process. */
423 int recv_files(int f_in, char *local_name)
424 {
425         int fd1,fd2;
426         STRUCT_STAT st;
427         int iflags, xlen;
428         char *fname, fbuf[MAXPATHLEN];
429         char xname[MAXPATHLEN];
430         char fnametmp[MAXPATHLEN];
431         char *fnamecmp, *partialptr;
432         char fnamecmpbuf[MAXPATHLEN];
433         uchar fnamecmp_type;
434         struct file_struct *file;
435         struct stats initial_stats;
436         int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
437         enum logcode log_code = log_before_transfer ? FLOG : FINFO;
438         int max_phase = protocol_version >= 29 ? 2 : 1;
439         int dflt_perms = (ACCESSPERMS & ~orig_umask);
440 #ifdef SUPPORT_ACLS
441         const char *parent_dirname = "";
442 #endif
443         int ndx, recv_ok;
444
445         if (verbose > 2)
446                 rprintf(FINFO, "recv_files(%d) starting\n", cur_flist->used);
447
448         if (delay_updates)
449                 delayed_bits = bitbag_create(cur_flist->used + 1);
450
451         while (1) {
452                 cleanup_disable();
453
454                 /* This call also sets cur_flist. */
455                 ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
456                                          xname, &xlen);
457                 if (ndx == NDX_DONE) {
458                         if (inc_recurse && first_flist) {
459                                 if (read_batch)
460                                         gen_wants_ndx(first_flist->used + first_flist->ndx_start);
461                                 flist_free(first_flist);
462                                 if (first_flist)
463                                         continue;
464                         } else if (read_batch && first_flist)
465                                 gen_wants_ndx(first_flist->used);
466                         if (++phase > max_phase)
467                                 break;
468                         if (verbose > 2)
469                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
470                         if (phase == 2 && delay_updates)
471                                 handle_delayed_updates(local_name);
472                         send_msg(MSG_DONE, "", 0, 0);
473                         continue;
474                 }
475
476                 if (ndx - cur_flist->ndx_start >= 0)
477                         file = cur_flist->files[ndx - cur_flist->ndx_start];
478                 else
479                         file = dir_flist->files[cur_flist->parent_ndx];
480                 fname = local_name ? local_name : f_name(file, fbuf);
481
482                 if (verbose > 2)
483                         rprintf(FINFO, "recv_files(%s)\n", fname);
484
485 #ifdef SUPPORT_XATTRS
486                 if (iflags & ITEM_REPORT_XATTR && !dry_run)
487                         recv_xattr_request(file, f_in);
488 #endif
489
490                 if (!(iflags & ITEM_TRANSFER)) {
491                         maybe_log_item(file, iflags, itemizing, xname);
492 #ifdef SUPPORT_XATTRS
493                         if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
494                                 set_file_attrs(fname, file, NULL, fname, 0);
495 #endif
496                         continue;
497                 }
498                 if (phase == 2) {
499                         rprintf(FERROR,
500                                 "got transfer request in phase 2 [%s]\n",
501                                 who_am_i());
502                         exit_cleanup(RERR_PROTOCOL);
503                 }
504
505                 if (file->flags & FLAG_FILE_SENT) {
506                         if (csum_length == SHORT_SUM_LENGTH) {
507                                 if (keep_partial && !partial_dir)
508                                         make_backups = -make_backups; /* prevents double backup */
509                                 if (append_mode)
510                                         sparse_files = -sparse_files;
511                                 append_mode = -append_mode;
512                                 csum_length = SUM_LENGTH;
513                                 redoing = 1;
514                         }
515                 } else {
516                         if (csum_length != SHORT_SUM_LENGTH) {
517                                 if (keep_partial && !partial_dir)
518                                         make_backups = -make_backups;
519                                 if (append_mode)
520                                         sparse_files = -sparse_files;
521                                 append_mode = -append_mode;
522                                 csum_length = SHORT_SUM_LENGTH;
523                                 redoing = 0;
524                         }
525                 }
526
527                 if (!am_server && do_progress)
528                         set_current_file_index(file, ndx);
529                 stats.num_transferred_files++;
530                 stats.total_transferred_size += F_LENGTH(file);
531
532                 cleanup_got_literal = 0;
533
534                 if (daemon_filter_list.head
535                     && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0) {
536                         rprintf(FERROR, "attempt to hack rsync failed.\n");
537                         exit_cleanup(RERR_PROTOCOL);
538                 }
539
540                 if (!do_xfers) { /* log the transfer */
541                         log_item(FCLIENT, file, &stats, iflags, NULL);
542                         if (read_batch)
543                                 discard_receive_data(f_in, F_LENGTH(file));
544                         continue;
545                 }
546                 if (write_batch < 0) {
547                         log_item(FCLIENT, file, &stats, iflags, NULL);
548                         if (!am_server)
549                                 discard_receive_data(f_in, F_LENGTH(file));
550                         continue;
551                 }
552
553                 if (read_batch) {
554                         if (!(redoing ? we_want_redo(ndx) : gen_wants_ndx(ndx))) {
555                                 rprintf(FINFO,
556                                         "(Skipping batched update for%s \"%s\")\n",
557                                         redoing ? " resend of" : "",
558                                         fname);
559                                 discard_receive_data(f_in, F_LENGTH(file));
560                                 file->flags |= FLAG_FILE_SENT;
561                                 continue;
562                         }
563                 }
564
565                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
566
567                 if (protocol_version >= 29) {
568                         switch (fnamecmp_type) {
569                         case FNAMECMP_FNAME:
570                                 fnamecmp = fname;
571                                 break;
572                         case FNAMECMP_PARTIAL_DIR:
573                                 fnamecmp = partialptr;
574                                 break;
575                         case FNAMECMP_BACKUP:
576                                 fnamecmp = get_backup_name(fname);
577                                 break;
578                         case FNAMECMP_FUZZY:
579                                 if (file->dirname) {
580                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
581                                                  file->dirname, xname);
582                                         fnamecmp = fnamecmpbuf;
583                                 } else
584                                         fnamecmp = xname;
585                                 break;
586                         default:
587                                 if (fnamecmp_type >= basis_dir_cnt) {
588                                         rprintf(FERROR,
589                                                 "invalid basis_dir index: %d.\n",
590                                                 fnamecmp_type);
591                                         exit_cleanup(RERR_PROTOCOL);
592                                 }
593                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
594                                          basis_dir[fnamecmp_type], fname);
595                                 fnamecmp = fnamecmpbuf;
596                                 break;
597                         }
598                         if (!fnamecmp || (daemon_filter_list.head
599                           && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0)) {
600                                 fnamecmp = fname;
601                                 fnamecmp_type = FNAMECMP_FNAME;
602                         }
603                 } else {
604                         /* Reminder: --inplace && --partial-dir are never
605                          * enabled at the same time. */
606                         if (inplace && make_backups > 0) {
607                                 if (!(fnamecmp = get_backup_name(fname)))
608                                         fnamecmp = fname;
609                                 else
610                                         fnamecmp_type = FNAMECMP_BACKUP;
611                         } else if (partial_dir && partialptr)
612                                 fnamecmp = partialptr;
613                         else
614                                 fnamecmp = fname;
615                 }
616
617                 initial_stats = stats;
618
619                 /* open the file */
620                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
621
622                 if (fd1 == -1 && protocol_version < 29) {
623                         if (fnamecmp != fname) {
624                                 fnamecmp = fname;
625                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
626                         }
627
628                         if (fd1 == -1 && basis_dir[0]) {
629                                 /* pre-29 allowed only one alternate basis */
630                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
631                                          basis_dir[0], fname);
632                                 fnamecmp = fnamecmpbuf;
633                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
634                         }
635                 }
636
637                 updating_basis_or_equiv = inplace
638                     && (fnamecmp == fname || fnamecmp_type == FNAMECMP_BACKUP);
639
640                 if (fd1 == -1) {
641                         st.st_mode = 0;
642                         st.st_size = 0;
643                 } else if (do_fstat(fd1,&st) != 0) {
644                         rsyserr(FERROR_XFER, errno, "fstat %s failed",
645                                 full_fname(fnamecmp));
646                         discard_receive_data(f_in, F_LENGTH(file));
647                         close(fd1);
648                         if (inc_recurse)
649                                 send_msg_int(MSG_NO_SEND, ndx);
650                         continue;
651                 }
652
653                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
654                         /* this special handling for directories
655                          * wouldn't be necessary if robust_rename()
656                          * and the underlying robust_unlink could cope
657                          * with directories
658                          */
659                         rprintf(FERROR_XFER, "recv_files: %s is a directory\n",
660                                 full_fname(fnamecmp));
661                         discard_receive_data(f_in, F_LENGTH(file));
662                         close(fd1);
663                         if (inc_recurse)
664                                 send_msg_int(MSG_NO_SEND, ndx);
665                         continue;
666                 }
667
668                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
669                         close(fd1);
670                         fd1 = -1;
671                 }
672
673                 /* If we're not preserving permissions, change the file-list's
674                  * mode based on the local permissions and some heuristics. */
675                 if (!preserve_perms) {
676                         int exists = fd1 != -1;
677 #ifdef SUPPORT_ACLS
678                         const char *dn = file->dirname ? file->dirname : ".";
679                         if (parent_dirname != dn
680                          && strcmp(parent_dirname, dn) != 0) {
681                                 dflt_perms = default_perms_for_dir(dn);
682                                 parent_dirname = dn;
683                         }
684 #endif
685                         file->mode = dest_mode(file->mode, st.st_mode,
686                                                dflt_perms, exists);
687                 }
688
689                 /* We now check to see if we are writing the file "inplace" */
690                 if (inplace)  {
691                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
692                         if (fd2 == -1) {
693                                 rsyserr(FERROR_XFER, errno, "open %s failed",
694                                         full_fname(fname));
695                         }
696                 } else {
697                         fd2 = open_tmpfile(fnametmp, fname, file);
698                         if (fd2 != -1)
699                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
700                 }
701
702                 if (fd2 == -1) {
703                         discard_receive_data(f_in, F_LENGTH(file));
704                         if (fd1 != -1)
705                                 close(fd1);
706                         if (inc_recurse)
707                                 send_msg_int(MSG_NO_SEND, ndx);
708                         continue;
709                 }
710
711                 /* log the transfer */
712                 if (log_before_transfer)
713                         log_item(FCLIENT, file, &initial_stats, iflags, NULL);
714                 else if (!am_server && verbose && do_progress)
715                         rprintf(FINFO, "%s\n", fname);
716
717                 /* recv file data */
718                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
719                                        fname, fd2, F_LENGTH(file));
720
721                 log_item(log_code, file, &initial_stats, iflags, NULL);
722
723                 if (fd1 != -1)
724                         close(fd1);
725                 if (close(fd2) < 0) {
726                         rsyserr(FERROR, errno, "close failed on %s",
727                                 full_fname(fnametmp));
728                         exit_cleanup(RERR_FILEIO);
729                 }
730
731                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
732                         if (partialptr == fname)
733                                 partialptr = NULL;
734                         if (!finish_transfer(fname, fnametmp, fnamecmp,
735                                              partialptr, file, recv_ok, 1))
736                                 recv_ok = -1;
737                         else if (fnamecmp == partialptr) {
738                                 do_unlink(partialptr);
739                                 handle_partial_dir(partialptr, PDIR_DELETE);
740                         }
741                 } else if (keep_partial && partialptr) {
742                         if (!handle_partial_dir(partialptr, PDIR_CREATE)) {
743                                 rprintf(FERROR,
744                                     "Unable to create partial-dir for %s -- discarding %s.\n",
745                                     local_name ? local_name : f_name(file, NULL),
746                                     recv_ok ? "completed file" : "partial file");
747                                 do_unlink(fnametmp);
748                                 recv_ok = -1;
749                         } else if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
750                                                     file, recv_ok, !partial_dir))
751                                 recv_ok = -1;
752                         else if (delay_updates && recv_ok) {
753                                 bitbag_set_bit(delayed_bits, ndx);
754                                 recv_ok = 2;
755                         } else
756                                 partialptr = NULL;
757                 } else
758                         do_unlink(fnametmp);
759
760                 cleanup_disable();
761
762                 if (read_batch)
763                         file->flags |= FLAG_FILE_SENT;
764
765                 switch (recv_ok) {
766                 case 2:
767                         break;
768                 case 1:
769                         if (remove_source_files || inc_recurse
770                          || (preserve_hard_links && F_IS_HLINKED(file)))
771                                 send_msg_int(MSG_SUCCESS, ndx);
772                         break;
773                 case 0: {
774                         enum logcode msgtype = redoing ? FERROR_XFER : FWARNING;
775                         if (msgtype == FERROR_XFER || verbose) {
776                                 char *errstr, *redostr, *keptstr;
777                                 if (!(keep_partial && partialptr) && !inplace)
778                                         keptstr = "discarded";
779                                 else if (partial_dir)
780                                         keptstr = "put into partial-dir";
781                                 else
782                                         keptstr = "retained";
783                                 if (msgtype == FERROR_XFER) {
784                                         errstr = "ERROR";
785                                         redostr = "";
786                                 } else {
787                                         errstr = "WARNING";
788                                         redostr = read_batch ? " (may try again)"
789                                                              : " (will try again)";
790                                 }
791                                 rprintf(msgtype,
792                                         "%s: %s failed verification -- update %s%s.\n",
793                                         errstr, local_name ? f_name(file, NULL) : fname,
794                                         keptstr, redostr);
795                         }
796                         if (!redoing) {
797                                 if (read_batch)
798                                         flist_ndx_push(&batch_redo_list, ndx);
799                                 send_msg_int(MSG_REDO, ndx);
800                                 file->flags |= FLAG_FILE_SENT;
801                         } else if (inc_recurse)
802                                 send_msg_int(MSG_NO_SEND, ndx);
803                         break;
804                     }
805                 case -1:
806                         if (inc_recurse)
807                                 send_msg_int(MSG_NO_SEND, ndx);
808                         break;
809                 }
810         }
811         if (make_backups < 0)
812                 make_backups = -make_backups;
813
814         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
815                 handle_delayed_updates(local_name);
816
817         if (verbose > 2)
818                 rprintf(FINFO,"recv_files finished\n");
819
820         return 0;
821 }