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