Fixed skipping of unneeded updates in a batch file when incremental
[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) 2003-2008 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);
290 #endif
291
292         if (do_progress)
293                 end_progress(total_size);
294
295         if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
296             report_write_error:
297                 rsyserr(FERROR_XFER, errno, "write failed on %s",
298                         full_fname(fname));
299                 exit_cleanup(RERR_FILEIO);
300         }
301
302         sum_len = sum_end(file_sum1);
303
304         if (mapbuf)
305                 unmap_file(mapbuf);
306
307         read_buf(f_in, file_sum2, sum_len);
308         if (verbose > 2)
309                 rprintf(FINFO,"got file_sum\n");
310         if (fd != -1 && memcmp(file_sum1, file_sum2, sum_len) != 0)
311                 return 0;
312         return 1;
313 }
314
315
316 static void discard_receive_data(int f_in, OFF_T length)
317 {
318         receive_data(f_in, NULL, -1, 0, NULL, -1, length);
319 }
320
321 static void handle_delayed_updates(char *local_name)
322 {
323         char *fname, *partialptr;
324         int ndx;
325
326         for (ndx = -1; (ndx = bitbag_next_bit(delayed_bits, ndx)) >= 0; ) {
327                 struct file_struct *file = cur_flist->files[ndx];
328                 fname = local_name ? local_name : f_name(file, NULL);
329                 if ((partialptr = partial_dir_fname(fname)) != NULL) {
330                         if (make_backups > 0 && !make_backup(fname))
331                                 continue;
332                         if (verbose > 2) {
333                                 rprintf(FINFO, "renaming %s to %s\n",
334                                         partialptr, fname);
335                         }
336                         /* We don't use robust_rename() here because the
337                          * partial-dir must be on the same drive. */
338                         if (do_rename(partialptr, fname) < 0) {
339                                 rsyserr(FERROR_XFER, errno,
340                                         "rename failed for %s (from %s)",
341                                         full_fname(fname), partialptr);
342                         } else {
343                                 if (remove_source_files
344                                  || (preserve_hard_links && F_IS_HLINKED(file)))
345                                         send_msg_int(MSG_SUCCESS, ndx);
346                                 handle_partial_dir(partialptr, PDIR_DELETE);
347                         }
348                 }
349         }
350 }
351
352 static void no_batched_update(int ndx, BOOL is_redo)
353 {
354         struct file_list *flist = flist_for_ndx(ndx, "no_batched_update");
355         struct file_struct *file = flist->files[ndx - flist->ndx_start];
356
357         rprintf(FERROR_XFER, "(No batched update for%s \"%s\")\n",
358                 is_redo ? " resend of" : "", f_name(file, NULL));
359
360         if (inc_recurse)
361                 send_msg_int(MSG_NO_SEND, ndx);
362 }
363
364 static int we_want_redo(int desired_ndx)
365 {
366         static int redo_ndx = -1;
367
368         while (redo_ndx < desired_ndx) {
369                 if (redo_ndx >= 0)
370                         no_batched_update(redo_ndx, True);
371                 if ((redo_ndx = flist_ndx_pop(&batch_redo_list)) < 0)
372                         return 0;
373         }
374
375         if (redo_ndx == desired_ndx) {
376                 redo_ndx = -1;
377                 return 1;
378         }
379
380         return 0;
381 }
382
383 static int gen_wants_ndx(int desired_ndx)
384 {
385         static int next_ndx = -1;
386         static BOOL got_eof = 0;
387
388         if (got_eof)
389                 return 0;
390
391         while (next_ndx < desired_ndx) {
392                 if (next_ndx >= 0)
393                         no_batched_update(next_ndx, False);
394                 if ((next_ndx = read_int(batch_gen_fd)) < 0) {
395                         got_eof = True;
396                         return 0;
397                 }
398         }
399
400         if (next_ndx == desired_ndx) {
401                 next_ndx = -1;
402                 return 1;
403         }
404
405         return 0;
406 }
407
408 /**
409  * main routine for receiver process.
410  *
411  * Receiver process runs on the same host as the generator process. */
412 int recv_files(int f_in, char *local_name)
413 {
414         int fd1,fd2;
415         STRUCT_STAT st;
416         int iflags, xlen;
417         char *fname, fbuf[MAXPATHLEN];
418         char xname[MAXPATHLEN];
419         char fnametmp[MAXPATHLEN];
420         char *fnamecmp, *partialptr;
421         char fnamecmpbuf[MAXPATHLEN];
422         uchar fnamecmp_type;
423         struct file_struct *file;
424         struct stats initial_stats;
425         int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
426         enum logcode log_code = log_before_transfer ? FLOG : FINFO;
427         int max_phase = protocol_version >= 29 ? 2 : 1;
428         int dflt_perms = (ACCESSPERMS & ~orig_umask);
429 #ifdef SUPPORT_ACLS
430         const char *parent_dirname = "";
431 #endif
432         int ndx, recv_ok;
433
434         if (verbose > 2)
435                 rprintf(FINFO, "recv_files(%d) starting\n", cur_flist->used);
436
437         if (delay_updates)
438                 delayed_bits = bitbag_create(cur_flist->used + 1);
439
440         while (1) {
441                 cleanup_disable();
442
443                 /* This call also sets cur_flist. */
444                 ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
445                                          xname, &xlen);
446                 if (ndx == NDX_DONE) {
447                         if (inc_recurse && first_flist) {
448                                 if (read_batch)
449                                         gen_wants_ndx(first_flist->used + first_flist->ndx_start);
450                                 flist_free(first_flist);
451                                 if (first_flist)
452                                         continue;
453                         } else if (read_batch && first_flist)
454                                 gen_wants_ndx(first_flist->used);
455                         if (++phase > max_phase)
456                                 break;
457                         if (verbose > 2)
458                                 rprintf(FINFO, "recv_files phase=%d\n", phase);
459                         if (phase == 2 && delay_updates)
460                                 handle_delayed_updates(local_name);
461                         send_msg(MSG_DONE, "", 0, 0);
462                         continue;
463                 }
464
465                 if (ndx - cur_flist->ndx_start >= 0)
466                         file = cur_flist->files[ndx - cur_flist->ndx_start];
467                 else
468                         file = dir_flist->files[cur_flist->parent_ndx];
469                 fname = local_name ? local_name : f_name(file, fbuf);
470
471                 if (verbose > 2)
472                         rprintf(FINFO, "recv_files(%s)\n", fname);
473
474 #ifdef SUPPORT_XATTRS
475                 if (iflags & ITEM_REPORT_XATTR && !dry_run)
476                         recv_xattr_request(file, f_in);
477 #endif
478
479                 if (!(iflags & ITEM_TRANSFER)) {
480                         maybe_log_item(file, iflags, itemizing, xname);
481 #ifdef SUPPORT_XATTRS
482                         if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run)
483                                 set_file_attrs(fname, file, NULL, fname, 0);
484 #endif
485                         continue;
486                 }
487                 if (phase == 2) {
488                         rprintf(FERROR,
489                                 "got transfer request in phase 2 [%s]\n",
490                                 who_am_i());
491                         exit_cleanup(RERR_PROTOCOL);
492                 }
493
494                 if (file->flags & FLAG_FILE_SENT) {
495                         if (csum_length == SHORT_SUM_LENGTH) {
496                                 if (keep_partial && !partial_dir)
497                                         make_backups = -make_backups; /* prevents double backup */
498                                 if (append_mode)
499                                         sparse_files = -sparse_files;
500                                 append_mode = -append_mode;
501                                 csum_length = SUM_LENGTH;
502                                 redoing = 1;
503                         }
504                 } else {
505                         if (csum_length != SHORT_SUM_LENGTH) {
506                                 if (keep_partial && !partial_dir)
507                                         make_backups = -make_backups;
508                                 if (append_mode)
509                                         sparse_files = -sparse_files;
510                                 append_mode = -append_mode;
511                                 csum_length = SHORT_SUM_LENGTH;
512                                 redoing = 0;
513                         }
514                 }
515
516                 if (!am_server && do_progress)
517                         set_current_file_index(file, ndx);
518                 stats.num_transferred_files++;
519                 stats.total_transferred_size += F_LENGTH(file);
520
521                 cleanup_got_literal = 0;
522
523                 if (daemon_filter_list.head
524                     && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0) {
525                         rprintf(FERROR, "attempt to hack rsync failed.\n");
526                         exit_cleanup(RERR_PROTOCOL);
527                 }
528
529                 if (!do_xfers) { /* log the transfer */
530                         log_item(FCLIENT, file, &stats, iflags, NULL);
531                         if (read_batch)
532                                 discard_receive_data(f_in, F_LENGTH(file));
533                         continue;
534                 }
535                 if (write_batch < 0) {
536                         log_item(FCLIENT, file, &stats, iflags, NULL);
537                         if (!am_server)
538                                 discard_receive_data(f_in, F_LENGTH(file));
539                         continue;
540                 }
541
542                 if (read_batch) {
543                         if (!(redoing ? we_want_redo(ndx) : gen_wants_ndx(ndx))) {
544                                 rprintf(FINFO,
545                                         "(Skipping batched update for%s \"%s\")\n",
546                                         redoing ? " resend of" : "",
547                                         fname);
548                                 discard_receive_data(f_in, F_LENGTH(file));
549                                 file->flags |= FLAG_FILE_SENT;
550                                 continue;
551                         }
552                 }
553
554                 partialptr = partial_dir ? partial_dir_fname(fname) : fname;
555
556                 if (protocol_version >= 29) {
557                         switch (fnamecmp_type) {
558                         case FNAMECMP_FNAME:
559                                 fnamecmp = fname;
560                                 break;
561                         case FNAMECMP_PARTIAL_DIR:
562                                 fnamecmp = partialptr;
563                                 break;
564                         case FNAMECMP_BACKUP:
565                                 fnamecmp = get_backup_name(fname);
566                                 break;
567                         case FNAMECMP_FUZZY:
568                                 if (file->dirname) {
569                                         pathjoin(fnamecmpbuf, MAXPATHLEN,
570                                                  file->dirname, xname);
571                                         fnamecmp = fnamecmpbuf;
572                                 } else
573                                         fnamecmp = xname;
574                                 break;
575                         default:
576                                 if (fnamecmp_type >= basis_dir_cnt) {
577                                         rprintf(FERROR,
578                                                 "invalid basis_dir index: %d.\n",
579                                                 fnamecmp_type);
580                                         exit_cleanup(RERR_PROTOCOL);
581                                 }
582                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
583                                          basis_dir[fnamecmp_type], fname);
584                                 fnamecmp = fnamecmpbuf;
585                                 break;
586                         }
587                         if (!fnamecmp || (daemon_filter_list.head
588                           && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0)) {
589                                 fnamecmp = fname;
590                                 fnamecmp_type = FNAMECMP_FNAME;
591                         }
592                 } else {
593                         /* Reminder: --inplace && --partial-dir are never
594                          * enabled at the same time. */
595                         if (inplace && make_backups > 0) {
596                                 if (!(fnamecmp = get_backup_name(fname)))
597                                         fnamecmp = fname;
598                                 else
599                                         fnamecmp_type = FNAMECMP_BACKUP;
600                         } else if (partial_dir && partialptr)
601                                 fnamecmp = partialptr;
602                         else
603                                 fnamecmp = fname;
604                 }
605
606                 initial_stats = stats;
607
608                 /* open the file */
609                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
610
611                 if (fd1 == -1 && protocol_version < 29) {
612                         if (fnamecmp != fname) {
613                                 fnamecmp = fname;
614                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
615                         }
616
617                         if (fd1 == -1 && basis_dir[0]) {
618                                 /* pre-29 allowed only one alternate basis */
619                                 pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
620                                          basis_dir[0], fname);
621                                 fnamecmp = fnamecmpbuf;
622                                 fd1 = do_open(fnamecmp, O_RDONLY, 0);
623                         }
624                 }
625
626                 updating_basis_or_equiv = inplace
627                     && (fnamecmp == fname || fnamecmp_type == FNAMECMP_BACKUP);
628
629                 if (fd1 == -1) {
630                         st.st_mode = 0;
631                         st.st_size = 0;
632                 } else if (do_fstat(fd1,&st) != 0) {
633                         rsyserr(FERROR_XFER, errno, "fstat %s failed",
634                                 full_fname(fnamecmp));
635                         discard_receive_data(f_in, F_LENGTH(file));
636                         close(fd1);
637                         if (inc_recurse)
638                                 send_msg_int(MSG_NO_SEND, ndx);
639                         continue;
640                 }
641
642                 if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
643                         /* this special handling for directories
644                          * wouldn't be necessary if robust_rename()
645                          * and the underlying robust_unlink could cope
646                          * with directories
647                          */
648                         rprintf(FERROR_XFER, "recv_files: %s is a directory\n",
649                                 full_fname(fnamecmp));
650                         discard_receive_data(f_in, F_LENGTH(file));
651                         close(fd1);
652                         if (inc_recurse)
653                                 send_msg_int(MSG_NO_SEND, ndx);
654                         continue;
655                 }
656
657                 if (fd1 != -1 && !S_ISREG(st.st_mode)) {
658                         close(fd1);
659                         fd1 = -1;
660                 }
661
662                 /* If we're not preserving permissions, change the file-list's
663                  * mode based on the local permissions and some heuristics. */
664                 if (!preserve_perms) {
665                         int exists = fd1 != -1;
666 #ifdef SUPPORT_ACLS
667                         const char *dn = file->dirname ? file->dirname : ".";
668                         if (parent_dirname != dn
669                          && strcmp(parent_dirname, dn) != 0) {
670                                 dflt_perms = default_perms_for_dir(dn);
671                                 parent_dirname = dn;
672                         }
673 #endif
674                         file->mode = dest_mode(file->mode, st.st_mode,
675                                                dflt_perms, exists);
676                 }
677
678                 /* We now check to see if we are writing the file "inplace" */
679                 if (inplace)  {
680                         fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
681                         if (fd2 == -1) {
682                                 rsyserr(FERROR_XFER, errno, "open %s failed",
683                                         full_fname(fname));
684                         }
685                 } else {
686                         fd2 = open_tmpfile(fnametmp, fname, file);
687                         if (fd2 != -1)
688                                 cleanup_set(fnametmp, partialptr, file, fd1, fd2);
689                 }
690
691                 if (fd2 == -1) {
692                         discard_receive_data(f_in, F_LENGTH(file));
693                         if (fd1 != -1)
694                                 close(fd1);
695                         if (inc_recurse)
696                                 send_msg_int(MSG_NO_SEND, ndx);
697                         continue;
698                 }
699
700                 /* log the transfer */
701                 if (log_before_transfer)
702                         log_item(FCLIENT, file, &initial_stats, iflags, NULL);
703                 else if (!am_server && verbose && do_progress)
704                         rprintf(FINFO, "%s\n", fname);
705
706                 /* recv file data */
707                 recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
708                                        fname, fd2, F_LENGTH(file));
709
710                 log_item(log_code, file, &initial_stats, iflags, NULL);
711
712                 if (fd1 != -1)
713                         close(fd1);
714                 if (close(fd2) < 0) {
715                         rsyserr(FERROR, errno, "close failed on %s",
716                                 full_fname(fnametmp));
717                         exit_cleanup(RERR_FILEIO);
718                 }
719
720                 if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
721                         if (partialptr == fname)
722                                 partialptr = NULL;
723                         if (!finish_transfer(fname, fnametmp, fnamecmp,
724                                              partialptr, file, recv_ok, 1))
725                                 recv_ok = -1;
726                         else if (fnamecmp == partialptr) {
727                                 do_unlink(partialptr);
728                                 handle_partial_dir(partialptr, PDIR_DELETE);
729                         }
730                 } else if (keep_partial && partialptr) {
731                         if (!handle_partial_dir(partialptr, PDIR_CREATE)) {
732                                 rprintf(FERROR,
733                                     "Unable to create partial-dir for %s -- discarding %s.\n",
734                                     local_name ? local_name : f_name(file, NULL),
735                                     recv_ok ? "completed file" : "partial file");
736                                 do_unlink(fnametmp);
737                                 recv_ok = -1;
738                         } else if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
739                                                     file, recv_ok, !partial_dir))
740                                 recv_ok = -1;
741                         else if (delay_updates && recv_ok) {
742                                 bitbag_set_bit(delayed_bits, ndx);
743                                 recv_ok = 2;
744                         } else
745                                 partialptr = NULL;
746                 } else
747                         do_unlink(fnametmp);
748
749                 cleanup_disable();
750
751                 if (read_batch)
752                         file->flags |= FLAG_FILE_SENT;
753
754                 switch (recv_ok) {
755                 case 2:
756                         break;
757                 case 1:
758                         if (remove_source_files || inc_recurse
759                          || (preserve_hard_links && F_IS_HLINKED(file)))
760                                 send_msg_int(MSG_SUCCESS, ndx);
761                         break;
762                 case 0: {
763                         enum logcode msgtype = redoing ? FERROR_XFER : FWARNING;
764                         if (msgtype == FERROR_XFER || verbose) {
765                                 char *errstr, *redostr, *keptstr;
766                                 if (!(keep_partial && partialptr) && !inplace)
767                                         keptstr = "discarded";
768                                 else if (partial_dir)
769                                         keptstr = "put into partial-dir";
770                                 else
771                                         keptstr = "retained";
772                                 if (msgtype == FERROR_XFER) {
773                                         errstr = "ERROR";
774                                         redostr = "";
775                                 } else {
776                                         errstr = "WARNING";
777                                         redostr = read_batch ? " (may try again)"
778                                                              : " (will try again)";
779                                 }
780                                 rprintf(msgtype,
781                                         "%s: %s failed verification -- update %s%s.\n",
782                                         errstr, local_name ? f_name(file, NULL) : fname,
783                                         keptstr, redostr);
784                         }
785                         if (!redoing) {
786                                 if (read_batch)
787                                         flist_ndx_push(&batch_redo_list, ndx);
788                                 send_msg_int(MSG_REDO, ndx);
789                                 file->flags |= FLAG_FILE_SENT;
790                         } else if (inc_recurse)
791                                 send_msg_int(MSG_NO_SEND, ndx);
792                         break;
793                     }
794                 case -1:
795                         if (inc_recurse)
796                                 send_msg_int(MSG_NO_SEND, ndx);
797                         break;
798                 }
799         }
800         if (make_backups < 0)
801                 make_backups = -make_backups;
802
803         if (phase == 2 && delay_updates) /* for protocol_version < 29 */
804                 handle_delayed_updates(local_name);
805
806         if (verbose > 2)
807                 rprintf(FINFO,"recv_files finished\n");
808
809         return 0;
810 }