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_root;
28: extern int am_server;
29: extern int do_progress;
30: extern int inc_recurse;
31: extern int log_before_transfer;
32: extern int stdout_format_has_i;
33: extern int logfile_format_has_i;
34: extern int csum_length;
35: extern int read_batch;
36: extern int write_batch;
37: extern int batch_gen_fd;
38: extern int protocol_version;
39: extern int relative_paths;
40: extern int preserve_hard_links;
41: extern int preserve_perms;
42: extern int preserve_xattrs;
43: extern int basis_dir_cnt;
44: extern int make_backups;
45: extern int cleanup_got_literal;
46: extern int remove_source_files;
47: extern int append_mode;
48: extern int sparse_files;
49: extern int keep_partial;
50: extern int checksum_seed;
51: extern int inplace;
52: extern int delay_updates;
53: extern mode_t orig_umask;
54: extern struct stats stats;
55: extern char *tmpdir;
56: extern char *partial_dir;
57: extern char *basis_dir[MAX_BASIS_DIRS+1];
58: extern struct file_list *cur_flist, *first_flist, *dir_flist;
59: extern struct filter_list_struct daemon_filter_list;
60:
61: static struct bitbag *delayed_bits = NULL;
62: static int phase = 0, redoing = 0;
63: static flist_ndx_list batch_redo_list;
64: /* We're either updating the basis file or an identical copy: */
65: static int updating_basis_or_equiv;
66:
67: #define TMPNAME_SUFFIX ".XXXXXX"
68: #define TMPNAME_SUFFIX_LEN ((int)sizeof TMPNAME_SUFFIX - 1)
69:
70: /* get_tmpname() - create a tmp filename for a given filename
71: *
72: * If a tmpdir is defined, use that as the directory to put it in. Otherwise,
73: * the tmp filename is in the same directory as the given name. Note that
74: * there may be no directory at all in the given name!
75: *
76: * The tmp filename is basically the given filename with a dot prepended, and
77: * .XXXXXX appended (for mkstemp() to put its unique gunk in). We take care
78: * to not exceed either the MAXPATHLEN or NAME_MAX, especially the last, as
79: * the basename basically becomes 8 characters longer. In such a case, the
80: * original name is shortened sufficiently to make it all fit.
81: *
82: * Of course, the only reason the file is based on the original name is to
83: * make it easier to figure out what purpose a temp file is serving when a
84: * transfer is in progress. */
85: int get_tmpname(char *fnametmp, const char *fname)
86: {
87: int maxname, added, length = 0;
88: const char *f;
89: char *suf;
90:
91: if (tmpdir) {
92: /* Note: this can't overflow, so the return value is safe */
93: length = strlcpy(fnametmp, tmpdir, MAXPATHLEN - 2);
94: fnametmp[length++] = '/';
95: }
96:
97: if ((f = strrchr(fname, '/')) != NULL) {
98: ++f;
99: if (!tmpdir) {
100: length = f - fname;
101: /* copy up to and including the slash */
102: strlcpy(fnametmp, fname, length + 1);
103: }
104: } else
105: f = fname;
106: fnametmp[length++] = '.';
107:
108: /* The maxname value is bufsize, and includes space for the '\0'.
109: * NAME_MAX needs an extra -1 for the name's leading dot. */
110: maxname = MIN(MAXPATHLEN - length - TMPNAME_SUFFIX_LEN,
111: NAME_MAX - 1 - TMPNAME_SUFFIX_LEN);
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: suf = fnametmp + length + added;
123:
124: /* Trim any dangling high-bit chars if the first-trimmed char (if any) is
125: * also a high-bit char, just in case we cut into a multi-byte sequence.
126: * We are guaranteed to stop because of the leading '.' we added. */
127: if ((int)f[added] & 0x80) {
128: while ((int)suf[-1] & 0x80)
129: suf--;
130: }
131:
132: memcpy(suf, TMPNAME_SUFFIX, TMPNAME_SUFFIX_LEN+1);
133:
134: return 1;
135: }
136:
137: /* Opens a temporary file for writing.
138: * Success: Writes name into fnametmp, returns fd.
139: * Failure: Clobbers fnametmp, returns -1.
140: * Calling cleanup_set() is the caller's job. */
141: int open_tmpfile(char *fnametmp, const char *fname, struct file_struct *file)
142: {
143: int fd;
144: mode_t added_perms;
145:
146: if (!get_tmpname(fnametmp, fname))
147: return -1;
148:
149: if (am_root < 0) {
150: /* For --fake-super, the file must be useable by the copying
151: * user, just like it would be for root. */
152: added_perms = S_IRUSR|S_IWUSR;
153: } else {
154: /* For a normal copy, we need to be able to tweak things like xattrs. */
155: added_perms = S_IWUSR;
156: }
157:
158: /* We initially set the perms without the setuid/setgid bits or group
159: * access to ensure that there is no race condition. They will be
160: * correctly updated after the right owner and group info is set.
161: * (Thanks to snabb@epipe.fi for pointing this out.) */
162: fd = do_mkstemp(fnametmp, (file->mode|added_perms) & INITACCESSPERMS);
163:
164: #if 0
165: /* In most cases parent directories will already exist because their
166: * information should have been previously transferred, but that may
167: * not be the case with -R */
168: if (fd == -1 && relative_paths && errno == ENOENT
169: && create_directory_path(fnametmp) == 0) {
170: /* Get back to name with XXXXXX in it. */
171: get_tmpname(fnametmp, fname);
172: fd = do_mkstemp(fnametmp, (file->mode|added_perms) & INITACCESSPERMS);
173: }
174: #endif
175:
176: if (fd == -1) {
177: rsyserr(FERROR_XFER, errno, "mkstemp %s failed",
178: full_fname(fnametmp));
179: return -1;
180: }
181:
182: return fd;
183: }
184:
185: static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
186: const char *fname, int fd, OFF_T total_size)
187: {
188: static char file_sum1[MAX_DIGEST_LEN];
189: static char file_sum2[MAX_DIGEST_LEN];
190: struct map_struct *mapbuf;
191: struct sum_struct sum;
192: int32 len, sum_len;
193: OFF_T offset = 0;
194: OFF_T offset2;
195: char *data;
196: int32 i;
197: char *map = NULL;
198:
199: read_sum_head(f_in, &sum);
200:
201: if (fd_r >= 0 && size_r > 0) {
202: int32 read_size = MAX(sum.blength * 2, 16*1024);
203: mapbuf = map_file(fd_r, size_r, read_size, sum.blength);
204: if (verbose > 2) {
205: rprintf(FINFO, "recv mapped %s of size %.0f\n",
206: fname_r, (double)size_r);
207: }
208: } else
209: mapbuf = NULL;
210:
211: sum_init(checksum_seed);
212:
213: if (append_mode > 0) {
214: OFF_T j;
215: sum.flength = (OFF_T)sum.count * sum.blength;
216: if (sum.remainder)
217: sum.flength -= sum.blength - sum.remainder;
218: if (append_mode == 2) {
219: for (j = CHUNK_SIZE; j < sum.flength; j += CHUNK_SIZE) {
220: if (do_progress)
221: show_progress(offset, total_size);
222: sum_update(map_ptr(mapbuf, offset, CHUNK_SIZE),
223: CHUNK_SIZE);
224: offset = j;
225: }
226: if (offset < sum.flength) {
227: int32 len = (int32)(sum.flength - offset);
228: if (do_progress)
229: show_progress(offset, total_size);
230: sum_update(map_ptr(mapbuf, offset, len), len);
231: }
232: }
233: offset = sum.flength;
234: if (fd != -1 && (j = do_lseek(fd, offset, SEEK_SET)) != offset) {
235: rsyserr(FERROR_XFER, errno, "lseek of %s returned %.0f, not %.0f",
236: full_fname(fname), (double)j, (double)offset);
237: exit_cleanup(RERR_FILEIO);
238: }
239: }
240:
241: while ((i = recv_token(f_in, &data)) != 0) {
242: if (do_progress)
243: show_progress(offset, total_size);
244:
245: if (i > 0) {
246: if (verbose > 3) {
247: rprintf(FINFO,"data recv %d at %.0f\n",
248: i,(double)offset);
249: }
250:
251: stats.literal_data += i;
252: cleanup_got_literal = 1;
253:
254: sum_update(data, i);
255:
256: if (fd != -1 && write_file(fd,data,i) != i)
257: goto report_write_error;
258: offset += i;
259: continue;
260: }
261:
262: i = -(i+1);
263: offset2 = i * (OFF_T)sum.blength;
264: len = sum.blength;
265: if (i == (int)sum.count-1 && sum.remainder != 0)
266: len = sum.remainder;
267:
268: stats.matched_data += len;
269:
270: if (verbose > 3) {
271: rprintf(FINFO,
272: "chunk[%d] of size %ld at %.0f offset=%.0f%s\n",
273: i, (long)len, (double)offset2, (double)offset,
274: updating_basis_or_equiv && offset == offset2 ? " (seek)" : "");
275: }
276:
277: if (mapbuf) {
278: map = map_ptr(mapbuf,offset2,len);
279:
280: see_token(map, len);
281: sum_update(map, len);
282: }
283:
284: if (updating_basis_or_equiv) {
285: if (offset == offset2 && fd != -1) {
286: OFF_T pos;
287: if (flush_write_file(fd) < 0)
288: goto report_write_error;
289: offset += len;
290: if ((pos = do_lseek(fd, len, SEEK_CUR)) != offset) {
291: rsyserr(FERROR_XFER, errno,
292: "lseek of %s returned %.0f, not %.0f",
293: full_fname(fname),
294: (double)pos, (double)offset);
295: exit_cleanup(RERR_FILEIO);
296: }
297: continue;
298: }
299: }
300: if (fd != -1 && map && write_file(fd, map, len) != (int)len)
301: goto report_write_error;
302: offset += len;
303: }
304:
305: if (flush_write_file(fd) < 0)
306: goto report_write_error;
307:
308: #ifdef HAVE_FTRUNCATE
309: if (inplace && fd != -1 && do_ftruncate(fd, offset) < 0) {
310: rsyserr(FERROR_XFER, errno, "ftruncate failed on %s",
311: full_fname(fname));
312: }
313: #endif
314:
315: if (do_progress)
316: end_progress(total_size);
317:
318: if (fd != -1 && offset > 0 && sparse_end(fd, offset) != 0) {
319: report_write_error:
320: rsyserr(FERROR_XFER, errno, "write failed on %s",
321: full_fname(fname));
322: exit_cleanup(RERR_FILEIO);
323: }
324:
325: sum_len = sum_end(file_sum1);
326:
327: if (mapbuf)
328: unmap_file(mapbuf);
329:
330: read_buf(f_in, file_sum2, sum_len);
331: if (verbose > 2)
332: rprintf(FINFO,"got file_sum\n");
333: if (fd != -1 && memcmp(file_sum1, file_sum2, sum_len) != 0)
334: return 0;
335: return 1;
336: }
337:
338:
339: static void discard_receive_data(int f_in, OFF_T length)
340: {
341: receive_data(f_in, NULL, -1, 0, NULL, -1, length);
342: }
343:
344: static void handle_delayed_updates(char *local_name)
345: {
346: char *fname, *partialptr;
347: int ndx;
348:
349: for (ndx = -1; (ndx = bitbag_next_bit(delayed_bits, ndx)) >= 0; ) {
350: struct file_struct *file = cur_flist->files[ndx];
351: fname = local_name ? local_name : f_name(file, NULL);
352: if ((partialptr = partial_dir_fname(fname)) != NULL) {
353: if (make_backups > 0 && !make_backup(fname))
354: continue;
355: if (verbose > 2) {
356: rprintf(FINFO, "renaming %s to %s\n",
357: partialptr, fname);
358: }
359: /* We don't use robust_rename() here because the
360: * partial-dir must be on the same drive. */
361: if (do_rename(partialptr, fname) < 0) {
362: rsyserr(FERROR_XFER, errno,
363: "rename failed for %s (from %s)",
364: full_fname(fname), partialptr);
365: } else {
366: if (remove_source_files
367: || (preserve_hard_links && F_IS_HLINKED(file)))
368: send_msg_int(MSG_SUCCESS, ndx);
369: handle_partial_dir(partialptr, PDIR_DELETE);
370: }
371: }
372: }
373: }
374:
375: static void no_batched_update(int ndx, BOOL is_redo)
376: {
377: struct file_list *flist = flist_for_ndx(ndx, "no_batched_update");
378: struct file_struct *file = flist->files[ndx - flist->ndx_start];
379:
380: rprintf(FERROR_XFER, "(No batched update for%s \"%s\")\n",
381: is_redo ? " resend of" : "", f_name(file, NULL));
382:
383: if (inc_recurse && !dry_run)
384: send_msg_int(MSG_NO_SEND, ndx);
385: }
386:
387: static int we_want_redo(int desired_ndx)
388: {
389: static int redo_ndx = -1;
390:
391: while (redo_ndx < desired_ndx) {
392: if (redo_ndx >= 0)
393: no_batched_update(redo_ndx, True);
394: if ((redo_ndx = flist_ndx_pop(&batch_redo_list)) < 0)
395: return 0;
396: }
397:
398: if (redo_ndx == desired_ndx) {
399: redo_ndx = -1;
400: return 1;
401: }
402:
403: return 0;
404: }
405:
406: static int gen_wants_ndx(int desired_ndx)
407: {
408: static int next_ndx = -1;
409: static int done_cnt = 0;
410: static BOOL got_eof = False;
411: int flist_num = first_flist->flist_num;
412:
413: if (got_eof)
414: return 0;
415:
416: while (next_ndx < desired_ndx) {
417: if (inc_recurse && flist_num <= done_cnt)
418: return 0;
419: if (next_ndx >= 0)
420: no_batched_update(next_ndx, False);
421: if ((next_ndx = read_int(batch_gen_fd)) < 0) {
422: if (inc_recurse) {
423: done_cnt++;
424: continue;
425: }
426: got_eof = True;
427: return 0;
428: }
429: }
430:
431: if (next_ndx == desired_ndx) {
432: next_ndx = -1;
433: return 1;
434: }
435:
436: return 0;
437: }
438:
439: /**
440: * main routine for receiver process.
441: *
442: * Receiver process runs on the same host as the generator process. */
443: int recv_files(int f_in, char *local_name)
444: {
445: int fd1,fd2;
446: STRUCT_STAT st;
447: int iflags, xlen;
448: char *fname, fbuf[MAXPATHLEN];
449: char xname[MAXPATHLEN];
450: char fnametmp[MAXPATHLEN];
451: char *fnamecmp, *partialptr;
452: char fnamecmpbuf[MAXPATHLEN];
453: uchar fnamecmp_type;
454: struct file_struct *file;
455: struct stats initial_stats;
456: int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
457: enum logcode log_code = log_before_transfer ? FLOG : FINFO;
458: int max_phase = protocol_version >= 29 ? 2 : 1;
459: int dflt_perms = (ACCESSPERMS & ~orig_umask);
460: #ifdef SUPPORT_ACLS
461: const char *parent_dirname = "";
462: #endif
463: int ndx, recv_ok;
464:
465: if (verbose > 2)
466: rprintf(FINFO, "recv_files(%d) starting\n", cur_flist->used);
467:
468: if (delay_updates)
469: delayed_bits = bitbag_create(cur_flist->used + 1);
470:
471: while (1) {
472: cleanup_disable();
473:
474: /* This call also sets cur_flist. */
475: ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type,
476: xname, &xlen);
477: if (ndx == NDX_DONE) {
478: if (inc_recurse && first_flist) {
479: if (read_batch)
480: gen_wants_ndx(first_flist->used + first_flist->ndx_start);
481: flist_free(first_flist);
482: if (first_flist)
483: continue;
484: } else if (read_batch && first_flist)
485: gen_wants_ndx(first_flist->used);
486: if (++phase > max_phase)
487: break;
488: if (verbose > 2)
489: rprintf(FINFO, "recv_files phase=%d\n", phase);
490: if (phase == 2 && delay_updates)
491: handle_delayed_updates(local_name);
492: send_msg(MSG_DONE, "", 0, 0);
493: continue;
494: }
495:
496: if (ndx - cur_flist->ndx_start >= 0)
497: file = cur_flist->files[ndx - cur_flist->ndx_start];
498: else
499: file = dir_flist->files[cur_flist->parent_ndx];
500: fname = local_name ? local_name : f_name(file, fbuf);
501:
502: if (verbose > 2)
503: rprintf(FINFO, "recv_files(%s)\n", fname);
504:
505: #ifdef SUPPORT_XATTRS
506: if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && do_xfers)
507: recv_xattr_request(file, f_in);
508: #endif
509:
510: if (!(iflags & ITEM_TRANSFER)) {
511: maybe_log_item(file, iflags, itemizing, xname);
512: #ifdef SUPPORT_XATTRS
513: if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && do_xfers
514: && !BITS_SET(iflags, ITEM_XNAME_FOLLOWS|ITEM_LOCAL_CHANGE))
515: set_file_attrs(fname, file, NULL, fname, 0);
516: #endif
517: continue;
518: }
519: if (phase == 2) {
520: rprintf(FERROR,
521: "got transfer request in phase 2 [%s]\n",
522: who_am_i());
523: exit_cleanup(RERR_PROTOCOL);
524: }
525:
526: if (file->flags & FLAG_FILE_SENT) {
527: if (csum_length == SHORT_SUM_LENGTH) {
528: if (keep_partial && !partial_dir)
529: make_backups = -make_backups; /* prevents double backup */
530: if (append_mode)
531: sparse_files = -sparse_files;
532: append_mode = -append_mode;
533: csum_length = SUM_LENGTH;
534: redoing = 1;
535: }
536: } else {
537: if (csum_length != SHORT_SUM_LENGTH) {
538: if (keep_partial && !partial_dir)
539: make_backups = -make_backups;
540: if (append_mode)
541: sparse_files = -sparse_files;
542: append_mode = -append_mode;
543: csum_length = SHORT_SUM_LENGTH;
544: redoing = 0;
545: }
546: }
547:
548: if (!am_server && do_progress)
549: set_current_file_index(file, ndx);
550: stats.num_transferred_files++;
551: stats.total_transferred_size += F_LENGTH(file);
552:
553: cleanup_got_literal = 0;
554:
555: if (daemon_filter_list.head
556: && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0) {
557: rprintf(FERROR, "attempt to hack rsync failed.\n");
558: exit_cleanup(RERR_PROTOCOL);
559: }
560:
561: if (read_batch) {
562: int wanted = redoing
563: ? we_want_redo(ndx)
564: : gen_wants_ndx(ndx);
565: if (!wanted) {
566: rprintf(FINFO,
567: "(Skipping batched update for%s \"%s\")\n",
568: redoing ? " resend of" : "",
569: fname);
570: discard_receive_data(f_in, F_LENGTH(file));
571: file->flags |= FLAG_FILE_SENT;
572: continue;
573: }
574: }
575:
576: if (!do_xfers) { /* log the transfer */
577: log_item(FCLIENT, file, &stats, iflags, NULL);
578: if (read_batch)
579: discard_receive_data(f_in, F_LENGTH(file));
580: continue;
581: }
582: if (write_batch < 0) {
583: log_item(FCLIENT, file, &stats, iflags, NULL);
584: if (!am_server)
585: discard_receive_data(f_in, F_LENGTH(file));
586: continue;
587: }
588:
589: partialptr = partial_dir ? partial_dir_fname(fname) : fname;
590:
591: if (protocol_version >= 29) {
592: switch (fnamecmp_type) {
593: case FNAMECMP_FNAME:
594: fnamecmp = fname;
595: break;
596: case FNAMECMP_PARTIAL_DIR:
597: fnamecmp = partialptr;
598: break;
599: case FNAMECMP_BACKUP:
600: fnamecmp = get_backup_name(fname);
601: break;
602: case FNAMECMP_FUZZY:
603: if (file->dirname) {
604: pathjoin(fnamecmpbuf, MAXPATHLEN,
605: file->dirname, xname);
606: fnamecmp = fnamecmpbuf;
607: } else
608: fnamecmp = xname;
609: break;
610: default:
611: if (fnamecmp_type >= basis_dir_cnt) {
612: rprintf(FERROR,
613: "invalid basis_dir index: %d.\n",
614: fnamecmp_type);
615: exit_cleanup(RERR_PROTOCOL);
616: }
617: pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
618: basis_dir[fnamecmp_type], fname);
619: fnamecmp = fnamecmpbuf;
620: break;
621: }
622: if (!fnamecmp || (daemon_filter_list.head
623: && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0)) {
624: fnamecmp = fname;
625: fnamecmp_type = FNAMECMP_FNAME;
626: }
627: } else {
628: /* Reminder: --inplace && --partial-dir are never
629: * enabled at the same time. */
630: if (inplace && make_backups > 0) {
631: if (!(fnamecmp = get_backup_name(fname)))
632: fnamecmp = fname;
633: else
634: fnamecmp_type = FNAMECMP_BACKUP;
635: } else if (partial_dir && partialptr)
636: fnamecmp = partialptr;
637: else
638: fnamecmp = fname;
639: }
640:
641: initial_stats = stats;
642:
643: /* open the file */
644: fd1 = do_open(fnamecmp, O_RDONLY, 0);
645:
646: if (fd1 == -1 && protocol_version < 29) {
647: if (fnamecmp != fname) {
648: fnamecmp = fname;
649: fd1 = do_open(fnamecmp, O_RDONLY, 0);
650: }
651:
652: if (fd1 == -1 && basis_dir[0]) {
653: /* pre-29 allowed only one alternate basis */
654: pathjoin(fnamecmpbuf, sizeof fnamecmpbuf,
655: basis_dir[0], fname);
656: fnamecmp = fnamecmpbuf;
657: fd1 = do_open(fnamecmp, O_RDONLY, 0);
658: }
659: }
660:
661: updating_basis_or_equiv = inplace
662: && (fnamecmp == fname || fnamecmp_type == FNAMECMP_BACKUP);
663:
664: if (fd1 == -1) {
665: st.st_mode = 0;
666: st.st_size = 0;
667: } else if (do_fstat(fd1,&st) != 0) {
668: rsyserr(FERROR_XFER, errno, "fstat %s failed",
669: full_fname(fnamecmp));
670: discard_receive_data(f_in, F_LENGTH(file));
671: close(fd1);
672: if (inc_recurse)
673: send_msg_int(MSG_NO_SEND, ndx);
674: continue;
675: }
676:
677: if (fd1 != -1 && S_ISDIR(st.st_mode) && fnamecmp == fname) {
678: /* this special handling for directories
679: * wouldn't be necessary if robust_rename()
680: * and the underlying robust_unlink could cope
681: * with directories
682: */
683: rprintf(FERROR_XFER, "recv_files: %s is a directory\n",
684: full_fname(fnamecmp));
685: discard_receive_data(f_in, F_LENGTH(file));
686: close(fd1);
687: if (inc_recurse)
688: send_msg_int(MSG_NO_SEND, ndx);
689: continue;
690: }
691:
692: if (fd1 != -1 && !S_ISREG(st.st_mode)) {
693: close(fd1);
694: fd1 = -1;
695: }
696:
697: /* If we're not preserving permissions, change the file-list's
698: * mode based on the local permissions and some heuristics. */
699: if (!preserve_perms) {
700: int exists = fd1 != -1;
701: #ifdef SUPPORT_ACLS
702: const char *dn = file->dirname ? file->dirname : ".";
703: if (parent_dirname != dn
704: && strcmp(parent_dirname, dn) != 0) {
705: dflt_perms = default_perms_for_dir(dn);
706: parent_dirname = dn;
707: }
708: #endif
709: file->mode = dest_mode(file->mode, st.st_mode,
710: dflt_perms, exists);
711: }
712:
713: /* We now check to see if we are writing the file "inplace" */
714: if (inplace) {
715: fd2 = do_open(fname, O_WRONLY|O_CREAT, 0600);
716: if (fd2 == -1) {
717: rsyserr(FERROR_XFER, errno, "open %s failed",
718: full_fname(fname));
719: }
720: } else {
721: fd2 = open_tmpfile(fnametmp, fname, file);
722: if (fd2 != -1)
723: cleanup_set(fnametmp, partialptr, file, fd1, fd2);
724: }
725:
726: if (fd2 == -1) {
727: discard_receive_data(f_in, F_LENGTH(file));
728: if (fd1 != -1)
729: close(fd1);
730: if (inc_recurse)
731: send_msg_int(MSG_NO_SEND, ndx);
732: continue;
733: }
734:
735: /* log the transfer */
736: if (log_before_transfer)
737: log_item(FCLIENT, file, &initial_stats, iflags, NULL);
738: else if (!am_server && verbose && do_progress)
739: rprintf(FINFO, "%s\n", fname);
740:
741: /* recv file data */
742: recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size,
743: fname, fd2, F_LENGTH(file));
744:
745: log_item(log_code, file, &initial_stats, iflags, NULL);
746:
747: if (fd1 != -1)
748: close(fd1);
749: if (close(fd2) < 0) {
750: rsyserr(FERROR, errno, "close failed on %s",
751: full_fname(fnametmp));
752: exit_cleanup(RERR_FILEIO);
753: }
754:
755: if ((recv_ok && (!delay_updates || !partialptr)) || inplace) {
756: if (partialptr == fname)
757: partialptr = NULL;
758: if (!finish_transfer(fname, fnametmp, fnamecmp,
759: partialptr, file, recv_ok, 1))
760: recv_ok = -1;
761: else if (fnamecmp == partialptr) {
762: do_unlink(partialptr);
763: handle_partial_dir(partialptr, PDIR_DELETE);
764: }
765: } else if (keep_partial && partialptr) {
766: if (!handle_partial_dir(partialptr, PDIR_CREATE)) {
767: rprintf(FERROR,
768: "Unable to create partial-dir for %s -- discarding %s.\n",
769: local_name ? local_name : f_name(file, NULL),
770: recv_ok ? "completed file" : "partial file");
771: do_unlink(fnametmp);
772: recv_ok = -1;
773: } else if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
774: file, recv_ok, !partial_dir))
775: recv_ok = -1;
776: else if (delay_updates && recv_ok) {
777: bitbag_set_bit(delayed_bits, ndx);
778: recv_ok = 2;
779: } else
780: partialptr = NULL;
781: } else
782: do_unlink(fnametmp);
783:
784: cleanup_disable();
785:
786: if (read_batch)
787: file->flags |= FLAG_FILE_SENT;
788:
789: switch (recv_ok) {
790: case 2:
791: break;
792: case 1:
793: if (remove_source_files || inc_recurse
794: || (preserve_hard_links && F_IS_HLINKED(file)))
795: send_msg_int(MSG_SUCCESS, ndx);
796: break;
797: case 0: {
798: enum logcode msgtype = redoing ? FERROR_XFER : FWARNING;
799: if (msgtype == FERROR_XFER || verbose) {
800: char *errstr, *redostr, *keptstr;
801: if (!(keep_partial && partialptr) && !inplace)
802: keptstr = "discarded";
803: else if (partial_dir)
804: keptstr = "put into partial-dir";
805: else
806: keptstr = "retained";
807: if (msgtype == FERROR_XFER) {
808: errstr = "ERROR";
809: redostr = "";
810: } else {
811: errstr = "WARNING";
812: redostr = read_batch ? " (may try again)"
813: : " (will try again)";
814: }
815: rprintf(msgtype,
816: "%s: %s failed verification -- update %s%s.\n",
817: errstr, local_name ? f_name(file, NULL) : fname,
818: keptstr, redostr);
819: }
820: if (!redoing) {
821: if (read_batch)
822: flist_ndx_push(&batch_redo_list, ndx);
823: send_msg_int(MSG_REDO, ndx);
824: file->flags |= FLAG_FILE_SENT;
825: } else if (inc_recurse)
826: send_msg_int(MSG_NO_SEND, ndx);
827: break;
828: }
829: case -1:
830: if (inc_recurse)
831: send_msg_int(MSG_NO_SEND, ndx);
832: break;
833: }
834: }
835: if (make_backups < 0)
836: make_backups = -make_backups;
837:
838: if (phase == 2 && delay_updates) /* for protocol_version < 29 */
839: handle_delayed_updates(local_name);
840:
841: if (verbose > 2)
842: rprintf(FINFO,"recv_files finished\n");
843:
844: return 0;
845: }
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