Commit | Line | Data |
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ef1aa910 | 1 | /* -*- c-file-style: "linux" -*- |
91262d5d MP |
2 | |
3 | rsync -- fast file replication program | |
2cda2560 WD |
4 | |
5 | Copyright (C) 1996-2000 by Andrew Tridgell | |
2f03f956 | 6 | Copyright (C) Paul Mackerras 1996 |
91262d5d | 7 | Copyright (C) 2002 by Martin Pool <mbp@samba.org> |
2cda2560 | 8 | |
2f03f956 AT |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
2cda2560 | 13 | |
2f03f956 AT |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
2cda2560 | 18 | |
2f03f956 AT |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | #include "rsync.h" | |
25 | ||
26 | extern int verbose; | |
27 | extern int dry_run; | |
6c3862fa WD |
28 | extern int log_format_has_i; |
29 | extern int log_format_has_o_or_i; | |
30 | extern int daemon_log_format_has_i; | |
31 | extern int am_root; | |
32 | extern int am_server; | |
33 | extern int am_daemon; | |
59faec8b | 34 | extern int recurse; |
2f03f956 | 35 | extern int relative_paths; |
716e73d4 | 36 | extern int keep_dirlinks; |
2f03f956 | 37 | extern int preserve_links; |
2f03f956 AT |
38 | extern int preserve_devices; |
39 | extern int preserve_hard_links; | |
6744b62d WD |
40 | extern int preserve_perms; |
41 | extern int preserve_uid; | |
42 | extern int preserve_gid; | |
3ea9bbd6 WD |
43 | extern int preserve_times; |
44 | extern int omit_dir_times; | |
59faec8b | 45 | extern int delete_before; |
fa13f396 | 46 | extern int delete_during; |
59faec8b WD |
47 | extern int delete_after; |
48 | extern int module_id; | |
49 | extern int ignore_errors; | |
fe960187 | 50 | extern int remove_sent_files; |
2f03f956 | 51 | extern int update_only; |
3d6feada | 52 | extern int opt_ignore_existing; |
cd6aa5b5 WD |
53 | extern int inplace; |
54 | extern int make_backups; | |
2f03f956 AT |
55 | extern int csum_length; |
56 | extern int ignore_times; | |
f83f0548 | 57 | extern int size_only; |
7d1bfaf7 | 58 | extern OFF_T max_size; |
2f03f956 | 59 | extern int io_timeout; |
59faec8b | 60 | extern int io_error; |
9ac2395b | 61 | extern int ignore_timeout; |
d04e9c51 | 62 | extern int protocol_version; |
8e85be0a | 63 | extern int fuzzy_basis; |
2f03f956 | 64 | extern int always_checksum; |
a7260c40 | 65 | extern char *partial_dir; |
b7e8628c | 66 | extern char *basis_dir[]; |
2be2fb3e | 67 | extern int compare_dest; |
59c95e42 | 68 | extern int link_dest; |
5774786f WD |
69 | extern int whole_file; |
70 | extern int local_server; | |
5774786f | 71 | extern int list_only; |
b9f592fb | 72 | extern int read_batch; |
5774786f WD |
73 | extern int only_existing; |
74 | extern int orig_umask; | |
75 | extern int safe_symlinks; | |
a255c592 | 76 | extern long block_size; /* "long" because popt can't set an int32. */ |
59faec8b WD |
77 | extern int max_delete; |
78 | extern int force_delete; | |
79 | extern int one_file_system; | |
6c3862fa | 80 | extern struct stats stats; |
59faec8b WD |
81 | extern dev_t filesystem_dev; |
82 | extern char *backup_dir; | |
83 | extern char *backup_suffix; | |
84 | extern int backup_suffix_len; | |
2f03f956 | 85 | |
7842418b | 86 | extern struct filter_list_struct server_filter_list; |
97f9dcae | 87 | |
59faec8b WD |
88 | static int deletion_count = 0; /* used to implement --max-delete */ |
89 | ||
90 | ||
91 | static int is_backup_file(char *fn) | |
92 | { | |
93 | int k = strlen(fn) - backup_suffix_len; | |
94 | return k > 0 && strcmp(fn+k, backup_suffix) == 0; | |
95 | } | |
96 | ||
97 | ||
98 | /* Delete a file or directory. If DEL_FORCE_RECURSE is set in the flags, or if | |
99 | * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE | |
100 | * is not set in the flags. */ | |
101 | static int delete_item(char *fname, int mode, int flags) | |
102 | { | |
103 | struct file_list *dirlist; | |
104 | char buf[MAXPATHLEN]; | |
105 | int j, dlen, zap_dir, ok; | |
106 | void *save_filters; | |
107 | ||
108 | if (max_delete && deletion_count >= max_delete) | |
109 | return -1; | |
110 | ||
111 | if (!S_ISDIR(mode)) { | |
112 | if (make_backups && (backup_dir || !is_backup_file(fname))) | |
113 | ok = make_backup(fname); | |
114 | else | |
115 | ok = robust_unlink(fname) == 0; | |
116 | if (ok) { | |
117 | if (!(flags & DEL_TERSE)) | |
118 | log_delete(fname, mode); | |
119 | deletion_count++; | |
120 | return 0; | |
121 | } | |
122 | if (errno == ENOENT) | |
123 | return 0; | |
124 | rsyserr(FERROR, errno, "delete_file: unlink %s failed", | |
125 | full_fname(fname)); | |
126 | return -1; | |
127 | } | |
128 | ||
129 | zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse)) | |
130 | && !(flags & DEL_NO_RECURSE); | |
131 | if (dry_run && zap_dir) { | |
132 | ok = 0; | |
133 | errno = ENOTEMPTY; | |
134 | } else if (make_backups && !backup_dir && !is_backup_file(fname) | |
135 | && !(flags & DEL_FORCE_RECURSE)) | |
136 | ok = make_backup(fname); | |
137 | else | |
138 | ok = do_rmdir(fname) == 0; | |
139 | if (ok) { | |
140 | if (!(flags & DEL_TERSE)) | |
141 | log_delete(fname, mode); | |
142 | deletion_count++; | |
143 | return 0; | |
144 | } | |
145 | if (errno == ENOENT) | |
146 | return 0; | |
147 | if (!zap_dir || (errno != ENOTEMPTY && errno != EEXIST)) { | |
148 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", | |
149 | full_fname(fname)); | |
150 | return -1; | |
151 | } | |
f62eaa24 | 152 | flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */ |
59faec8b WD |
153 | |
154 | dlen = strlcpy(buf, fname, MAXPATHLEN); | |
155 | save_filters = push_local_filters(buf, dlen); | |
156 | ||
157 | dirlist = get_dirlist(buf, dlen, 0); | |
158 | for (j = dirlist->count; j--; ) { | |
159 | struct file_struct *fp = dirlist->files[j]; | |
160 | ||
161 | if (fp->flags & FLAG_MOUNT_POINT) | |
162 | continue; | |
163 | ||
164 | f_name_to(fp, buf); | |
165 | if (delete_item(buf, fp->mode, flags & ~DEL_TERSE) != 0) { | |
166 | flist_free(dirlist); | |
167 | return -1; | |
168 | } | |
169 | } | |
170 | flist_free(dirlist); | |
171 | ||
172 | pop_local_filters(save_filters); | |
173 | ||
174 | if (max_delete && deletion_count >= max_delete) | |
175 | return -1; | |
176 | ||
177 | if (do_rmdir(fname) == 0) { | |
178 | if (!(flags & DEL_TERSE)) | |
179 | log_delete(fname, mode); | |
180 | deletion_count++; | |
181 | } else if (errno != ENOTEMPTY && errno != ENOENT) { | |
182 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", | |
183 | full_fname(fname)); | |
184 | return -1; | |
185 | } | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | ||
191 | /* This function is used to implement per-directory deletion, and is used by | |
192 | * all the --delete-WHEN options. Note that the fbuf pointer must point to a | |
193 | * MAXPATHLEN buffer with the name of the directory in it (the functions we | |
194 | * call will append names onto the end, but the old dir value will be restored | |
195 | * on exit). */ | |
196 | static void delete_in_dir(struct file_list *flist, char *fbuf, | |
197 | struct file_struct *file, int allowed_lull) | |
198 | { | |
199 | static int min_depth = MAXPATHLEN, cur_depth = -1; | |
200 | static void *filt_array[MAXPATHLEN/2+1]; | |
201 | struct file_list *dirlist; | |
202 | char delbuf[MAXPATHLEN]; | |
203 | STRUCT_STAT st; | |
204 | int dlen, i; | |
205 | ||
206 | if (!flist) { | |
207 | while (cur_depth >= min_depth) | |
208 | pop_local_filters(filt_array[cur_depth--]); | |
209 | min_depth = MAXPATHLEN; | |
210 | cur_depth = -1; | |
211 | return; | |
212 | } | |
213 | ||
214 | if (verbose > 2) | |
215 | rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf)); | |
216 | ||
217 | if (allowed_lull) | |
218 | maybe_send_keepalive(allowed_lull, flist->count); | |
219 | ||
220 | if (file->dir.depth >= MAXPATHLEN/2+1) | |
221 | return; /* Impossible... */ | |
222 | ||
223 | if (max_delete && deletion_count >= max_delete) | |
224 | return; | |
225 | ||
226 | if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) { | |
227 | rprintf(FINFO, | |
228 | "IO error encountered -- skipping file deletion\n"); | |
229 | max_delete = -1; /* avoid duplicating the above warning */ | |
230 | return; | |
231 | } | |
232 | ||
233 | while (cur_depth >= file->dir.depth && cur_depth >= min_depth) | |
234 | pop_local_filters(filt_array[cur_depth--]); | |
235 | cur_depth = file->dir.depth; | |
236 | if (min_depth > cur_depth) | |
237 | min_depth = cur_depth; | |
238 | dlen = strlen(fbuf); | |
239 | filt_array[cur_depth] = push_local_filters(fbuf, dlen); | |
240 | ||
241 | if (link_stat(fbuf, &st, keep_dirlinks) < 0) | |
242 | return; | |
243 | ||
244 | if (one_file_system && file->flags & FLAG_TOP_DIR) | |
245 | filesystem_dev = st.st_dev; | |
246 | ||
247 | dirlist = get_dirlist(fbuf, dlen, 0); | |
248 | ||
249 | /* If an item in dirlist is not found in flist, delete it | |
250 | * from the filesystem. */ | |
251 | for (i = dirlist->count; i--; ) { | |
252 | if (!dirlist->files[i]->basename) | |
253 | continue; | |
254 | if (flist_find(flist, dirlist->files[i]) < 0) { | |
59faec8b | 255 | int mode = dirlist->files[i]->mode; |
251f22b5 | 256 | f_name_to(dirlist->files[i], delbuf); |
59faec8b WD |
257 | if (delete_item(delbuf, mode, DEL_FORCE_RECURSE) < 0) |
258 | break; | |
259 | } | |
260 | } | |
261 | ||
262 | flist_free(dirlist); | |
263 | } | |
264 | ||
265 | /* This deletes any files on the receiving side that are not present on the | |
266 | * sending side. This is used by --delete-before and --delete-after. */ | |
267 | static void do_delete_pass(struct file_list *flist, int allowed_lull) | |
268 | { | |
269 | char fbuf[MAXPATHLEN]; | |
270 | int j; | |
271 | ||
272 | for (j = 0; j < flist->count; j++) { | |
273 | struct file_struct *file = flist->files[j]; | |
274 | ||
275 | if (!(file->flags & FLAG_DEL_HERE)) | |
276 | continue; | |
277 | ||
278 | f_name_to(file, fbuf); | |
279 | if (verbose > 1 && file->flags & FLAG_TOP_DIR) | |
280 | rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf)); | |
281 | ||
282 | delete_in_dir(flist, fbuf, file, allowed_lull); | |
283 | } | |
284 | } | |
285 | ||
b7e8628c | 286 | static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st) |
2f03f956 | 287 | { |
b7e8628c WD |
288 | if (preserve_perms |
289 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) | |
84acca07 | 290 | return 0; |
bb24028f | 291 | |
b7e8628c WD |
292 | if (am_root && preserve_uid && st->st_uid != file->uid) |
293 | return 0; | |
bb24028f | 294 | |
b7e8628c WD |
295 | if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid) |
296 | return 0; | |
297 | ||
298 | return 1; | |
299 | } | |
300 | ||
06a1dbad | 301 | |
c557eb8c | 302 | static void itemize(struct file_struct *file, int statret, STRUCT_STAT *st, |
a1d23b53 | 303 | int32 iflags, int f_out, int ndx) |
06a1dbad | 304 | { |
e86ae6bc | 305 | if (statret == 0) { |
c557eb8c WD |
306 | if (S_ISREG(file->mode) && file->length != st->st_size) |
307 | iflags |= ITEM_REPORT_SIZE; | |
a1d23b53 | 308 | if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) { |
88b218fa WD |
309 | int keep_time = !preserve_times ? 0 |
310 | : S_ISDIR(file->mode) ? !omit_dir_times | |
311 | : !S_ISLNK(file->mode); | |
312 | ||
313 | if ((iflags & ITEM_UPDATING && !keep_time) | |
314 | || (keep_time && file->modtime != st->st_mtime)) | |
315 | iflags |= ITEM_REPORT_TIME; | |
316 | if (preserve_perms && file->mode != st->st_mode) | |
317 | iflags |= ITEM_REPORT_PERMS; | |
318 | if (preserve_uid && am_root && file->uid != st->st_uid) | |
319 | iflags |= ITEM_REPORT_OWNER; | |
320 | if (preserve_gid && file->gid != GID_NONE | |
321 | && st->st_gid != file->gid) | |
322 | iflags |= ITEM_REPORT_GROUP; | |
323 | } | |
c557eb8c | 324 | } else |
88b218fa | 325 | iflags |= ITEM_IS_NEW | ITEM_UPDATING; |
c557eb8c | 326 | |
a1d23b53 | 327 | iflags &= 0xffff; |
8a8356b7 | 328 | if ((iflags || verbose > 1) && !read_batch) { |
6c3862fa WD |
329 | if (protocol_version >= 29) { |
330 | if (ndx >= 0) | |
331 | write_int(f_out, ndx); | |
332 | write_shortint(f_out, iflags); | |
333 | } else if (ndx >= 0) | |
9497b0d4 | 334 | log_item(file, &stats, iflags, NULL); |
06a1dbad WD |
335 | } |
336 | } | |
337 | ||
338 | ||
b7e8628c WD |
339 | /* Perform our quick-check heuristic for determining if a file is unchanged. */ |
340 | static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st) | |
341 | { | |
342 | if (st->st_size != file->length) | |
343 | return 0; | |
59c95e42 | 344 | |
2cda2560 | 345 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
346 | of the file time to determine whether to sync */ |
347 | if (always_checksum && S_ISREG(st->st_mode)) { | |
348 | char sum[MD4_SUM_LENGTH]; | |
b7e8628c | 349 | file_checksum(fn, sum, st->st_size); |
728d0922 | 350 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
84acca07 | 351 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
352 | } |
353 | ||
cc1e997d | 354 | if (size_only) |
84acca07 | 355 | return 1; |
2f03f956 | 356 | |
cc1e997d | 357 | if (ignore_times) |
84acca07 | 358 | return 0; |
cc1e997d | 359 | |
84acca07 | 360 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
361 | } |
362 | ||
363 | ||
ec8290c8 | 364 | /* |
195bd906 | 365 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 366 | * calculating dynamic block and checksum sizes. |
195bd906 | 367 | * |
ec8290c8 | 368 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
369 | * function to encapsulate the logic. |
370 | * | |
371 | * The block size is a rounded square root of file length. | |
372 | * | |
373 | * The checksum size is determined according to: | |
374 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
375 | * provided by Donovan Baarda which gives a probability of rsync | |
376 | * algorithm corrupting data and falling back using the whole md4 | |
377 | * checksums. | |
378 | * | |
379 | * This might be made one of several selectable heuristics. | |
380 | */ | |
1490812a | 381 | static void sum_sizes_sqroot(struct sum_struct *sum, int64 len) |
195bd906 | 382 | { |
a255c592 | 383 | int32 blength; |
da9d12f5 | 384 | int s2length; |
195bd906 | 385 | |
a255c592 | 386 | if (block_size) |
195bd906 | 387 | blength = block_size; |
a255c592 | 388 | else if (len <= BLOCK_SIZE * BLOCK_SIZE) |
195bd906 | 389 | blength = BLOCK_SIZE; |
a255c592 WD |
390 | else { |
391 | int32 c; | |
1490812a | 392 | int64 l; |
eae7165c WD |
393 | int cnt; |
394 | for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {} | |
395 | if (cnt >= 31 || c >= MAX_BLOCK_SIZE) | |
396 | blength = MAX_BLOCK_SIZE; | |
397 | else { | |
398 | blength = 0; | |
399 | do { | |
400 | blength |= c; | |
1490812a | 401 | if (len < (int64)blength * blength) |
eae7165c WD |
402 | blength &= ~c; |
403 | c >>= 1; | |
404 | } while (c >= 8); /* round to multiple of 8 */ | |
405 | blength = MAX(blength, BLOCK_SIZE); | |
195bd906 | 406 | } |
195bd906 S |
407 | } |
408 | ||
d04e9c51 | 409 | if (protocol_version < 27) { |
195bd906 S |
410 | s2length = csum_length; |
411 | } else if (csum_length == SUM_LENGTH) { | |
412 | s2length = SUM_LENGTH; | |
413 | } else { | |
a255c592 | 414 | int32 c; |
1490812a | 415 | int64 l; |
da9d12f5 | 416 | int b = BLOCKSUM_BIAS; |
a255c592 WD |
417 | for (l = len; l >>= 1; b += 2) {} |
418 | for (c = blength; c >>= 1 && b; b--) {} | |
419 | /* add a bit, subtract rollsum, round up. */ | |
420 | s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */ | |
195bd906 S |
421 | s2length = MAX(s2length, csum_length); |
422 | s2length = MIN(s2length, SUM_LENGTH); | |
423 | } | |
424 | ||
425 | sum->flength = len; | |
426 | sum->blength = blength; | |
427 | sum->s2length = s2length; | |
428 | sum->count = (len + (blength - 1)) / blength; | |
429 | sum->remainder = (len % blength); | |
430 | ||
431 | if (sum->count && verbose > 2) { | |
a255c592 WD |
432 | rprintf(FINFO, |
433 | "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n", | |
434 | (double)sum->count, (long)sum->remainder, (long)sum->blength, | |
da9d12f5 | 435 | sum->s2length, (double)sum->flength); |
195bd906 S |
436 | } |
437 | } | |
80605142 | 438 | |
bceec82f | 439 | |
80605142 WD |
440 | /* |
441 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 442 | * |
80605142 WD |
443 | * Generate approximately one checksum every block_len bytes. |
444 | */ | |
cd6aa5b5 | 445 | static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy) |
2f03f956 | 446 | { |
a1cbe76e | 447 | int32 i; |
6e45e1dd | 448 | struct map_struct *mapbuf; |
80605142 | 449 | struct sum_struct sum; |
2f03f956 AT |
450 | OFF_T offset = 0; |
451 | ||
423dba8e | 452 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 453 | |
6e45e1dd | 454 | if (len > 0) |
96d910c7 | 455 | mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength); |
6e45e1dd WD |
456 | else |
457 | mapbuf = NULL; | |
458 | ||
fc0257c9 | 459 | write_sum_head(f_out, &sum); |
2f03f956 | 460 | |
80605142 | 461 | for (i = 0; i < sum.count; i++) { |
a255c592 | 462 | int32 n1 = (int32)MIN(len, (OFF_T)sum.blength); |
6e45e1dd | 463 | char *map = map_ptr(mapbuf, offset, n1); |
80605142 WD |
464 | uint32 sum1 = get_checksum1(map, n1); |
465 | char sum2[SUM_LENGTH]; | |
2f03f956 | 466 | |
cd6aa5b5 WD |
467 | if (f_copy >= 0) |
468 | full_write(f_copy, map, n1); | |
469 | ||
80605142 | 470 | get_checksum2(map, n1, sum2); |
2f03f956 | 471 | |
80605142 | 472 | if (verbose > 3) { |
e66dfd18 | 473 | rprintf(FINFO, |
a255c592 WD |
474 | "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n", |
475 | (double)i, (double)offset, (long)n1, | |
0e36d9da | 476 | (unsigned long)sum1); |
80605142 WD |
477 | } |
478 | write_int(f_out, sum1); | |
fc0257c9 | 479 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
480 | len -= n1; |
481 | offset += n1; | |
482 | } | |
6e45e1dd WD |
483 | |
484 | if (mapbuf) | |
485 | unmap_file(mapbuf); | |
2f03f956 AT |
486 | } |
487 | ||
06a1dbad | 488 | |
8e85be0a WD |
489 | /* Try to find a filename in the same dir as "fname" with a similar name. */ |
490 | static int find_fuzzy(struct file_struct *file, struct file_list *dirlist) | |
491 | { | |
492 | int fname_len, fname_suf_len; | |
493 | const char *fname_suf, *fname = file->basename; | |
494 | uint32 lowest_dist = 0x7FFFFFFF; | |
495 | int j, lowest_j = -1; | |
496 | ||
497 | fname_len = strlen(fname); | |
498 | fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len); | |
499 | ||
500 | for (j = 0; j < dirlist->count; j++) { | |
501 | struct file_struct *fp = dirlist->files[j]; | |
502 | const char *suf, *name; | |
503 | int len, suf_len; | |
504 | uint32 dist; | |
505 | ||
506 | if (!S_ISREG(fp->mode) || !fp->length | |
507 | || fp->flags & FLAG_NO_FUZZY) | |
508 | continue; | |
509 | ||
510 | name = fp->basename; | |
511 | ||
512 | if (fp->length == file->length | |
513 | && fp->modtime == file->modtime) { | |
514 | if (verbose > 4) { | |
515 | rprintf(FINFO, | |
516 | "fuzzy size/modtime match for %s\n", | |
517 | name); | |
518 | } | |
519 | return j; | |
520 | } | |
521 | ||
522 | len = strlen(name); | |
523 | suf = find_filename_suffix(name, len, &suf_len); | |
524 | ||
525 | dist = fuzzy_distance(name, len, fname, fname_len); | |
526 | /* Add some extra weight to how well the suffixes match. */ | |
527 | dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len) | |
528 | * 10; | |
529 | if (verbose > 4) { | |
530 | rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n", | |
531 | name, (int)(dist>>16), (int)(dist&0xFFFF)); | |
532 | } | |
533 | if (dist <= lowest_dist) { | |
534 | lowest_dist = dist; | |
535 | lowest_j = j; | |
536 | } | |
537 | } | |
538 | ||
539 | return lowest_j; | |
540 | } | |
541 | ||
2f03f956 | 542 | |
0492fdfb WD |
543 | /* Acts on flist->file's ndx'th item, whose name is fname. If a directory, |
544 | * make sure it exists, and has the right permissions/timestamp info. For | |
545 | * all other non-regular files (symlinks, etc.) we create them here. For | |
546 | * regular files that have changed, we try to find a basis file and then | |
547 | * start sending checksums. | |
ef1aa910 | 548 | * |
0492fdfb WD |
549 | * Note that f_out is set to -1 when doing final directory-permission and |
550 | * modification-time repair. */ | |
fa13f396 | 551 | static void recv_generator(char *fname, struct file_list *flist, |
0492fdfb | 552 | struct file_struct *file, int ndx, |
7433d73a | 553 | int itemizing, int maybe_PERMS_REPORT, |
59faec8b | 554 | enum logcode code, int allowed_lull, |
41cfde6b | 555 | int f_out, int f_out_name) |
2cda2560 | 556 | { |
8174bc35 | 557 | static int missing_below = -1, excluded_below = -1; |
8e85be0a WD |
558 | static char *fuzzy_dirname = NULL; |
559 | static struct file_list *fuzzy_dirlist = NULL; | |
560 | struct file_struct *fuzzy_file = NULL; | |
41cfde6b | 561 | int fd = -1, f_copy = -1; |
89f7eff3 | 562 | STRUCT_STAT st, partial_st; |
41cfde6b | 563 | struct file_struct *back_file = NULL; |
e7d13fe5 | 564 | int statret, stat_errno; |
41cfde6b | 565 | char *fnamecmp, *partialptr, *backupptr = NULL; |
375a4556 | 566 | char fnamecmpbuf[MAXPATHLEN]; |
41cfde6b | 567 | uchar fnamecmp_type; |
f7632fc6 | 568 | |
dfd5ba6a WD |
569 | if (list_only) |
570 | return; | |
2f03f956 | 571 | |
8e85be0a WD |
572 | if (!fname) { |
573 | if (fuzzy_dirlist) { | |
574 | flist_free(fuzzy_dirlist); | |
575 | fuzzy_dirlist = NULL; | |
576 | fuzzy_dirname = NULL; | |
577 | } | |
578 | if (missing_below >= 0) { | |
579 | dry_run--; | |
580 | missing_below = -1; | |
581 | } | |
582 | return; | |
583 | } | |
584 | ||
4875d6b6 WD |
585 | if (verbose > 2) { |
586 | rprintf(FINFO, "recv_generator(%s,%d)\n", | |
587 | safe_fname(fname), ndx); | |
588 | } | |
2f03f956 | 589 | |
8174bc35 WD |
590 | if (server_filter_list.head) { |
591 | if (excluded_below >= 0) { | |
592 | if (file->dir.depth > excluded_below) | |
593 | goto skipping; | |
594 | excluded_below = -1; | |
595 | } | |
596 | if (check_filter(&server_filter_list, fname, | |
597 | S_ISDIR(file->mode)) < 0) { | |
598 | if (S_ISDIR(file->mode)) | |
599 | excluded_below = file->dir.depth; | |
600 | skipping: | |
601 | if (verbose) { | |
602 | rprintf(FINFO, | |
603 | "skipping server-excluded file \"%s\"\n", | |
604 | safe_fname(fname)); | |
605 | } | |
606 | return; | |
3e35c34b | 607 | } |
3e35c34b | 608 | } |
97f9dcae | 609 | |
8e85be0a | 610 | if (missing_below >= 0 && file->dir.depth <= missing_below) { |
df337831 WD |
611 | dry_run--; |
612 | missing_below = -1; | |
613 | } | |
73f7af0e WD |
614 | if (dry_run > 1) { |
615 | statret = -1; | |
616 | stat_errno = ENOENT; | |
617 | } else { | |
8e85be0a WD |
618 | if (fuzzy_basis && S_ISREG(file->mode)) { |
619 | char *dn = file->dirname ? file->dirname : "."; | |
620 | /* Yes, identical dirnames are guaranteed to have | |
621 | * identical pointers at this point. */ | |
622 | if (fuzzy_dirname != dn) { | |
623 | if (fuzzy_dirlist) | |
624 | flist_free(fuzzy_dirlist); | |
625 | fuzzy_dirname = dn; | |
59faec8b WD |
626 | fuzzy_dirlist = get_dirlist(fuzzy_dirname, -1, |
627 | 1); | |
8e85be0a WD |
628 | } |
629 | } | |
630 | ||
73f7af0e WD |
631 | statret = link_stat(fname, &st, |
632 | keep_dirlinks && S_ISDIR(file->mode)); | |
633 | stat_errno = errno; | |
634 | } | |
63787382 | 635 | |
a7260c40 | 636 | if (only_existing && statret == -1 && stat_errno == ENOENT) { |
1347d512 | 637 | /* we only want to update existing files */ |
ecc81fce WD |
638 | if (verbose > 1) { |
639 | rprintf(FINFO, "not creating new file \"%s\"\n", | |
640 | safe_fname(fname)); | |
641 | } | |
1347d512 AT |
642 | return; |
643 | } | |
644 | ||
d9b4d267 WD |
645 | if (statret == 0 && !preserve_perms |
646 | && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) { | |
4df9f368 | 647 | /* if the file exists already and we aren't perserving |
2cda2560 WD |
648 | * permissions then act as though the remote end sent |
649 | * us the file permissions we already have */ | |
67e78a82 WD |
650 | file->mode = (file->mode & ~CHMOD_BITS) |
651 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
652 | } |
653 | ||
2f03f956 | 654 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
655 | /* The file to be received is a directory, so we need |
656 | * to prepare appropriately. If there is already a | |
657 | * file of that name and it is *not* a directory, then | |
658 | * we need to delete it. If it doesn't exist, then | |
027428eb | 659 | * (perhaps recursively) create it. */ |
2f03f956 | 660 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
59faec8b | 661 | delete_item(fname, st.st_mode, DEL_TERSE); |
2f03f956 AT |
662 | statret = -1; |
663 | } | |
df337831 WD |
664 | if (dry_run && statret != 0 && missing_below < 0) { |
665 | missing_below = file->dir.depth; | |
666 | dry_run++; | |
667 | } | |
6c3862fa | 668 | if (itemizing && f_out != -1) |
c557eb8c | 669 | itemize(file, statret, &st, 0, f_out, ndx); |
2f03f956 | 670 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { |
027428eb WD |
671 | if (!relative_paths || errno != ENOENT |
672 | || create_directory_path(fname, orig_umask) < 0 | |
673 | || do_mkdir(fname, file->mode) < 0) { | |
d62bcc17 WD |
674 | rsyserr(FERROR, errno, |
675 | "recv_generator: mkdir %s failed", | |
676 | full_fname(fname)); | |
2f03f956 AT |
677 | } |
678 | } | |
716e73d4 | 679 | if (set_perms(fname, file, statret ? NULL : &st, 0) |
6c3862fa WD |
680 | && verbose && code && f_out != -1) |
681 | rprintf(code, "%s/\n", safe_fname(fname)); | |
c93fad5e | 682 | if (delete_during && f_out != -1 && csum_length != SUM_LENGTH |
31937d36 | 683 | && (file->flags & FLAG_DEL_HERE)) |
59faec8b | 684 | delete_in_dir(flist, fname, file, allowed_lull); |
2f03f956 | 685 | return; |
06a1dbad | 686 | } |
6c3862fa | 687 | |
06a1dbad | 688 | if (max_size && file->length > max_size) { |
4875d6b6 WD |
689 | if (verbose > 1) { |
690 | rprintf(FINFO, "%s is over max-size\n", | |
691 | safe_fname(fname)); | |
692 | } | |
7d1bfaf7 | 693 | return; |
2f03f956 AT |
694 | } |
695 | ||
696 | if (preserve_links && S_ISLNK(file->mode)) { | |
4f5b0756 | 697 | #ifdef SUPPORT_LINKS |
728d0922 | 698 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 699 | if (verbose) { |
4875d6b6 WD |
700 | rprintf(FINFO, |
701 | "ignoring unsafe symlink %s -> \"%s\"\n", | |
702 | full_fname(fname), | |
703 | safe_fname(file->u.link)); | |
2f03f956 AT |
704 | } |
705 | return; | |
706 | } | |
707 | if (statret == 0) { | |
7e38410e WD |
708 | char lnk[MAXPATHLEN]; |
709 | int len; | |
710 | ||
8a8356b7 | 711 | if (!S_ISDIR(st.st_mode) |
7e38410e WD |
712 | && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) { |
713 | lnk[len] = 0; | |
85d4d142 MP |
714 | /* A link already pointing to the |
715 | * right place -- no further action | |
716 | * required. */ | |
7e38410e | 717 | if (strcmp(lnk, file->u.link) == 0) { |
6c3862fa | 718 | if (itemizing) { |
c557eb8c WD |
719 | itemize(file, 0, &st, 0, |
720 | f_out, ndx); | |
721 | } | |
c41b52c4 | 722 | set_perms(fname, file, &st, |
8a8356b7 | 723 | maybe_PERMS_REPORT); |
2f03f956 AT |
724 | return; |
725 | } | |
2cda2560 | 726 | } |
7e38410e WD |
727 | /* Not the right symlink (or not a symlink), so |
728 | * delete it. */ | |
88b218fa | 729 | if (S_ISLNK(st.st_mode)) |
59faec8b | 730 | delete_item(fname, st.st_mode, DEL_TERSE); |
88b218fa | 731 | else { |
59faec8b | 732 | delete_item(fname, st.st_mode, DEL_TERSE); |
88b218fa WD |
733 | statret = -1; |
734 | } | |
2f03f956 | 735 | } |
728d0922 | 736 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 | 737 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
ecc81fce | 738 | full_fname(fname), safe_fname(file->u.link)); |
2f03f956 AT |
739 | } else { |
740 | set_perms(fname,file,NULL,0); | |
6c3862fa | 741 | if (itemizing) { |
a1d23b53 | 742 | itemize(file, statret, &st, ITEM_UPDATING, |
c557eb8c | 743 | f_out, ndx); |
6c3862fa WD |
744 | } |
745 | if (code && verbose) { | |
746 | rprintf(code, "%s -> %s\n", safe_fname(fname), | |
c557eb8c | 747 | safe_fname(file->u.link)); |
2f03f956 | 748 | } |
fe960187 WD |
749 | if (remove_sent_files && !dry_run) { |
750 | char numbuf[4]; | |
751 | SIVAL(numbuf, 0, ndx); | |
752 | send_msg(MSG_SUCCESS, numbuf, 4); | |
753 | } | |
2f03f956 AT |
754 | } |
755 | #endif | |
756 | return; | |
757 | } | |
758 | ||
2f03f956 | 759 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { |
2cda2560 | 760 | if (statret != 0 || |
2f03f956 | 761 | st.st_mode != file->mode || |
3915fd75 | 762 | st.st_rdev != file->u.rdev) { |
59faec8b WD |
763 | delete_item(fname, st.st_mode, DEL_TERSE); |
764 | if (!IS_DEVICE(st.st_mode)) | |
88b218fa | 765 | statret = -1; |
d62bcc17 | 766 | if (verbose > 2) { |
2f03f956 | 767 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
ecc81fce WD |
768 | safe_fname(fname), |
769 | (int)file->mode, (int)file->u.rdev); | |
d62bcc17 | 770 | } |
728d0922 | 771 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
772 | rsyserr(FERROR, errno, "mknod %s failed", |
773 | full_fname(fname)); | |
2f03f956 AT |
774 | } else { |
775 | set_perms(fname,file,NULL,0); | |
6c3862fa | 776 | if (itemizing) { |
a1d23b53 | 777 | itemize(file, statret, &st, ITEM_UPDATING, |
88b218fa | 778 | f_out, ndx); |
6c3862fa WD |
779 | } |
780 | if (code && verbose) { | |
781 | rprintf(code, "%s\n", | |
ecc81fce WD |
782 | safe_fname(fname)); |
783 | } | |
2f03f956 AT |
784 | } |
785 | } else { | |
6c3862fa | 786 | if (itemizing) { |
c557eb8c WD |
787 | itemize(file, statret, &st, 0, |
788 | f_out, ndx); | |
789 | } | |
8a8356b7 | 790 | set_perms(fname, file, &st, maybe_PERMS_REPORT); |
2f03f956 AT |
791 | } |
792 | return; | |
793 | } | |
2f03f956 | 794 | |
6dff5992 | 795 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 796 | return; |
2f03f956 AT |
797 | |
798 | if (!S_ISREG(file->mode)) { | |
ecc81fce WD |
799 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", |
800 | safe_fname(fname)); | |
2f03f956 AT |
801 | return; |
802 | } | |
803 | ||
c3cbcfb8 WD |
804 | if (opt_ignore_existing && statret == 0) { |
805 | if (verbose > 1) | |
806 | rprintf(FINFO, "%s exists\n", safe_fname(fname)); | |
807 | return; | |
808 | } | |
809 | ||
810 | if (update_only && statret == 0 | |
811 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { | |
812 | if (verbose > 1) | |
813 | rprintf(FINFO, "%s is newer\n", safe_fname(fname)); | |
814 | return; | |
815 | } | |
816 | ||
375a4556 | 817 | fnamecmp = fname; |
41cfde6b | 818 | fnamecmp_type = FNAMECMP_FNAME; |
375a4556 | 819 | |
06a1dbad | 820 | if (statret != 0 && basis_dir[0] != NULL) { |
aef98825 | 821 | int best_match = -1; |
b7e8628c WD |
822 | int match_level = 0; |
823 | int i = 0; | |
824 | do { | |
825 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, | |
826 | basis_dir[i], fname); | |
aef98825 WD |
827 | if (link_stat(fnamecmpbuf, &st, 0) < 0 |
828 | || !S_ISREG(st.st_mode)) | |
829 | continue; | |
830 | switch (match_level) { | |
831 | case 0: | |
832 | best_match = i; | |
833 | match_level = 1; | |
aef98825 WD |
834 | /* FALL THROUGH */ |
835 | case 1: | |
836 | if (!unchanged_file(fnamecmpbuf, file, &st)) | |
837 | continue; | |
838 | best_match = i; | |
839 | match_level = 2; | |
840 | /* FALL THROUGH */ | |
841 | case 2: | |
842 | if (!unchanged_attrs(file, &st)) | |
843 | continue; | |
844 | best_match = i; | |
b7e8628c WD |
845 | match_level = 3; |
846 | break; | |
847 | } | |
aef98825 | 848 | break; |
b7e8628c | 849 | } while (basis_dir[++i] != NULL); |
aef98825 | 850 | if (match_level) { |
9ba46343 | 851 | statret = 0; |
aef98825 WD |
852 | if (i != best_match) { |
853 | i = best_match; | |
b7e8628c WD |
854 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, |
855 | basis_dir[i], fname); | |
9ba46343 WD |
856 | if (link_stat(fnamecmpbuf, &st, 0) < 0) { |
857 | match_level = 0; | |
858 | statret = -1; | |
a1d23b53 | 859 | stat_errno = errno; |
9ba46343 | 860 | } |
b7e8628c | 861 | } |
4f5b0756 | 862 | #ifdef HAVE_LINK |
70b54e4e WD |
863 | if (link_dest && match_level == 3 |
864 | && do_link(fnamecmpbuf, fname) < 0) { | |
865 | if (verbose) { | |
866 | rsyserr(FINFO, errno, "link %s => %s", | |
867 | full_fname(fnamecmpbuf), | |
868 | safe_fname(fname)); | |
e7bc9b64 | 869 | } |
e2243317 | 870 | match_level = 2; |
70b54e4e | 871 | } |
59c95e42 | 872 | #endif |
e2243317 | 873 | if (compare_dest || (match_level && match_level < 3)) { |
e7d13fe5 | 874 | fnamecmp = fnamecmpbuf; |
2be2fb3e | 875 | fnamecmp_type = i; |
41cfde6b | 876 | } |
e7d13fe5 WD |
877 | } |
878 | } | |
879 | ||
880 | if (statret == 0 && !S_ISREG(st.st_mode)) { | |
59faec8b | 881 | if (delete_item(fname, st.st_mode, DEL_TERSE) != 0) |
e7d13fe5 WD |
882 | return; |
883 | statret = -1; | |
884 | stat_errno = ENOENT; | |
375a4556 DD |
885 | } |
886 | ||
9d954dca | 887 | if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL |
72c19bb3 WD |
888 | && link_stat(partialptr, &partial_st, 0) == 0 |
889 | && S_ISREG(partial_st.st_mode)) { | |
06a1dbad | 890 | if (statret != 0) |
72c19bb3 WD |
891 | goto prepare_to_open; |
892 | } else | |
893 | partialptr = NULL; | |
89f7eff3 | 894 | |
06a1dbad | 895 | if (statret != 0 && fuzzy_basis && dry_run <= 1) { |
8e85be0a WD |
896 | int j = find_fuzzy(file, fuzzy_dirlist); |
897 | if (j >= 0) { | |
898 | fuzzy_file = fuzzy_dirlist->files[j]; | |
899 | f_name_to(fuzzy_file, fnamecmpbuf); | |
900 | if (verbose > 2) { | |
901 | rprintf(FINFO, "fuzzy basis selected for %s: %s\n", | |
902 | safe_fname(fname), safe_fname(fnamecmpbuf)); | |
903 | } | |
904 | st.st_mode = fuzzy_file->mode; | |
905 | st.st_size = fuzzy_file->length; | |
906 | st.st_mtime = fuzzy_file->modtime; | |
907 | statret = 0; | |
908 | fnamecmp = fnamecmpbuf; | |
909 | fnamecmp_type = FNAMECMP_FUZZY; | |
910 | } | |
911 | } | |
912 | ||
06a1dbad | 913 | if (statret != 0) { |
6dff5992 WD |
914 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
915 | return; | |
41cfde6b WD |
916 | if (stat_errno == ENOENT) |
917 | goto notify_others; | |
918 | if (verbose > 1) { | |
e7d13fe5 WD |
919 | rsyserr(FERROR, stat_errno, |
920 | "recv_generator: failed to stat %s", | |
d62bcc17 | 921 | full_fname(fname)); |
2f03f956 AT |
922 | } |
923 | return; | |
924 | } | |
925 | ||
2be2fb3e | 926 | if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH) |
b7e8628c | 927 | ; |
8e85be0a WD |
928 | else if (fnamecmp_type == FNAMECMP_FUZZY) |
929 | ; | |
b7e8628c | 930 | else if (unchanged_file(fnamecmp, file, &st)) { |
a1d23b53 WD |
931 | if (fnamecmp_type == FNAMECMP_FNAME) { |
932 | if (itemizing) | |
933 | itemize(file, statret, &st, 0, f_out, ndx); | |
934 | set_perms(fname, file, &st, maybe_PERMS_REPORT); | |
935 | return; | |
936 | } | |
937 | /* Only --compare-dest gets here. */ | |
938 | if (unchanged_attrs(file, &st)) { | |
939 | itemize(file, statret, &st, ITEM_NO_DEST_AND_NO_UPDATE, | |
c557eb8c | 940 | f_out, ndx); |
a1d23b53 | 941 | return; |
06a1dbad | 942 | } |
2f03f956 AT |
943 | } |
944 | ||
89f7eff3 | 945 | prepare_to_open: |
9d954dca WD |
946 | if (partialptr) { |
947 | st = partial_st; | |
948 | fnamecmp = partialptr; | |
949 | fnamecmp_type = FNAMECMP_PARTIAL_DIR; | |
950 | statret = 0; | |
951 | } | |
952 | ||
33ab4ad8 | 953 | if (dry_run || read_batch || whole_file) |
3841a04e | 954 | goto notify_others; |
2f03f956 | 955 | |
8e85be0a WD |
956 | if (fuzzy_basis) { |
957 | int j = flist_find(fuzzy_dirlist, file); | |
958 | if (j >= 0) /* don't use changing file as future fuzzy basis */ | |
959 | fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY; | |
960 | } | |
961 | ||
2cda2560 | 962 | /* open the file */ |
8c9fd200 | 963 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
964 | |
965 | if (fd == -1) { | |
d62bcc17 WD |
966 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
967 | full_fname(fnamecmp)); | |
cd6aa5b5 | 968 | pretend_missing: |
60be6acf | 969 | /* pretend the file didn't exist */ |
6dff5992 WD |
970 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
971 | return; | |
41cfde6b WD |
972 | statret = -1; |
973 | goto notify_others; | |
2f03f956 AT |
974 | } |
975 | ||
cd6aa5b5 WD |
976 | if (inplace && make_backups) { |
977 | if (!(backupptr = get_backup_name(fname))) { | |
978 | close(fd); | |
979 | return; | |
980 | } | |
7842418b | 981 | if (!(back_file = make_file(fname, NULL, NO_FILTERS))) { |
cd6aa5b5 WD |
982 | close(fd); |
983 | goto pretend_missing; | |
984 | } | |
985 | if (robust_unlink(backupptr) && errno != ENOENT) { | |
986 | rsyserr(FERROR, errno, "unlink %s", | |
987 | full_fname(backupptr)); | |
988 | free(back_file); | |
989 | close(fd); | |
990 | return; | |
991 | } | |
992 | if ((f_copy = do_open(backupptr, | |
993 | O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) { | |
994 | rsyserr(FERROR, errno, "open %s", | |
995 | full_fname(backupptr)); | |
996 | free(back_file); | |
997 | close(fd); | |
998 | return; | |
999 | } | |
41cfde6b | 1000 | fnamecmp_type = FNAMECMP_BACKUP; |
cd6aa5b5 WD |
1001 | } |
1002 | ||
dfd5ba6a | 1003 | if (verbose > 3) { |
ecc81fce WD |
1004 | rprintf(FINFO, "gen mapped %s of size %.0f\n", |
1005 | safe_fname(fnamecmp), (double)st.st_size); | |
dfd5ba6a | 1006 | } |
2f03f956 | 1007 | |
2f03f956 | 1008 | if (verbose > 2) |
0492fdfb | 1009 | rprintf(FINFO, "generating and sending sums for %d\n", ndx); |
2f03f956 | 1010 | |
41cfde6b | 1011 | notify_others: |
0492fdfb | 1012 | write_int(f_out, ndx); |
6c3862fa | 1013 | if (itemizing) { |
a1d23b53 | 1014 | int iflags = ITEM_UPDATING; |
8237f930 | 1015 | if (always_checksum) |
a1d23b53 | 1016 | iflags |= ITEM_REPORT_CHECKSUM; |
352963dd | 1017 | if (fnamecmp_type != FNAMECMP_FNAME) |
a1d23b53 | 1018 | iflags |= ITEM_USING_ALT_BASIS; |
8237f930 | 1019 | itemize(file, statret, &st, iflags, f_out, -1); |
e3bcd893 | 1020 | } |
8e85be0a | 1021 | if (f_out_name >= 0) { |
41cfde6b | 1022 | write_byte(f_out_name, fnamecmp_type); |
8e85be0a | 1023 | if (fnamecmp_type == FNAMECMP_FUZZY) { |
46e99b09 WD |
1024 | write_vstring(f_out_name, fuzzy_file->basename, |
1025 | strlen(fuzzy_file->basename)); | |
8e85be0a WD |
1026 | } |
1027 | } | |
cd6aa5b5 | 1028 | |
41cfde6b WD |
1029 | if (dry_run || read_batch) |
1030 | return; | |
1031 | ||
33ab4ad8 | 1032 | if (statret != 0 || whole_file) { |
e86ae6bc WD |
1033 | write_sum_head(f_out, NULL); |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | generate_and_send_sums(fd, st.st_size, f_out, f_copy); | |
1038 | ||
1039 | if (f_copy >= 0) { | |
1040 | close(f_copy); | |
1041 | set_perms(backupptr, back_file, NULL, 0); | |
1042 | if (verbose > 1) { | |
1043 | rprintf(FINFO, "backed up %s to %s\n", | |
1044 | safe_fname(fname), safe_fname(backupptr)); | |
41cfde6b | 1045 | } |
e86ae6bc WD |
1046 | free(back_file); |
1047 | } | |
41cfde6b | 1048 | |
e86ae6bc | 1049 | close(fd); |
2f03f956 AT |
1050 | } |
1051 | ||
1052 | ||
41cfde6b WD |
1053 | void generate_files(int f_out, struct file_list *flist, char *local_name, |
1054 | int f_out_name) | |
2f03f956 AT |
1055 | { |
1056 | int i; | |
e1f67417 | 1057 | int phase = 0; |
968c8030 | 1058 | char fbuf[MAXPATHLEN]; |
7433d73a WD |
1059 | int itemizing, maybe_PERMS_REPORT; |
1060 | enum logcode code; | |
3ea9bbd6 WD |
1061 | int need_retouch_dir_times = preserve_times && !omit_dir_times; |
1062 | int need_retouch_dir_perms = 0; | |
0492fdfb WD |
1063 | int save_only_existing = only_existing; |
1064 | int save_opt_ignore_existing = opt_ignore_existing; | |
662bdcd4 | 1065 | int allowed_lull = read_batch ? 0 : (io_timeout + 1) / 2; |
18a11cfd | 1066 | int lull_mod = allowed_lull * 5; |
7433d73a WD |
1067 | |
1068 | if (protocol_version >= 29) { | |
1069 | itemizing = 1; | |
1070 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1071 | code = daemon_log_format_has_i ? 0 : FLOG; | |
1072 | } else if (am_daemon) { | |
1073 | itemizing = daemon_log_format_has_i && !dry_run; | |
1074 | maybe_PERMS_REPORT = PERMS_REPORT; | |
1075 | code = itemizing || dry_run ? FCLIENT : FINFO; | |
1076 | } else if (!am_server) { | |
1077 | itemizing = log_format_has_i; | |
1078 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1079 | code = itemizing ? 0 : FINFO; | |
1080 | } else { | |
1081 | itemizing = 0; | |
1082 | maybe_PERMS_REPORT = PERMS_REPORT; | |
1083 | code = FINFO; | |
1084 | } | |
2f03f956 | 1085 | |
45e08edb WD |
1086 | if (verbose > 2) { |
1087 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
1088 | (long)getpid(), flist->count); | |
1089 | } | |
2f03f956 | 1090 | |
59faec8b WD |
1091 | if (delete_before && !local_name && flist->count > 0) |
1092 | do_delete_pass(flist, allowed_lull); | |
1093 | ||
33ab4ad8 WD |
1094 | if (whole_file < 0) |
1095 | whole_file = 0; | |
3e7053ac | 1096 | if (verbose >= 2) { |
1b1fef20 | 1097 | rprintf(FINFO, "delta-transmission %s\n", |
33ab4ad8 | 1098 | whole_file |
1b1fef20 WD |
1099 | ? "disabled for local transfer or --whole-file" |
1100 | : "enabled"); | |
3e7053ac | 1101 | } |
2cda2560 | 1102 | |
9ac2395b | 1103 | if (protocol_version < 29) |
7433d73a | 1104 | ignore_timeout = 1; |
a57873b7 | 1105 | |
2f03f956 AT |
1106 | for (i = 0; i < flist->count; i++) { |
1107 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 1108 | struct file_struct copy; |
2f03f956 | 1109 | |
dfd5ba6a WD |
1110 | if (!file->basename) |
1111 | continue; | |
0492fdfb WD |
1112 | |
1113 | /* We need to ensure that any dirs we create have writeable | |
1114 | * permissions during the time we are putting files within | |
1115 | * them. This is then fixed after the transfer is done. */ | |
dfd5ba6a WD |
1116 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
1117 | copy = *file; | |
dfd5ba6a WD |
1118 | copy.mode |= S_IWUSR; /* user write */ |
1119 | file = © | |
3ea9bbd6 | 1120 | need_retouch_dir_perms = 1; |
2f03f956 AT |
1121 | } |
1122 | ||
3fef5364 | 1123 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7433d73a | 1124 | flist, file, i, itemizing, maybe_PERMS_REPORT, |
59faec8b | 1125 | code, allowed_lull, f_out, f_out_name); |
9ac2395b | 1126 | |
18a11cfd | 1127 | if (allowed_lull && !(i % lull_mod)) |
9ac2395b | 1128 | maybe_send_keepalive(allowed_lull, flist->count); |
2f03f956 | 1129 | } |
59faec8b | 1130 | recv_generator(NULL, NULL, NULL, 0, 0, 0, code, 0, -1, -1); |
c93fad5e | 1131 | if (delete_during) |
59faec8b | 1132 | delete_in_dir(NULL, NULL, NULL, 0); |
2f03f956 AT |
1133 | |
1134 | phase++; | |
1135 | csum_length = SUM_LENGTH; | |
0492fdfb WD |
1136 | only_existing = max_size = opt_ignore_existing = 0; |
1137 | update_only = always_checksum = size_only = 0; | |
e1f67417 | 1138 | ignore_times = 1; |
e6bc6f42 | 1139 | make_backups = 0; /* avoid a duplicate backup for inplace processing */ |
2f03f956 | 1140 | |
9ac2395b WD |
1141 | /* We expect to just sit around now, so don't exit on a timeout. |
1142 | * If we really get a timeout then the other process should exit. */ | |
1143 | ignore_timeout = 1; | |
1144 | ||
2f03f956 AT |
1145 | if (verbose > 2) |
1146 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
1147 | ||
7daccb8e | 1148 | write_int(f_out, -1); |
2f03f956 | 1149 | |
bc63ae3f S |
1150 | /* files can cycle through the system more than once |
1151 | * to catch initial checksum errors */ | |
b9b15fb1 | 1152 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 1153 | struct file_struct *file = flist->files[i]; |
3fef5364 | 1154 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7433d73a | 1155 | flist, file, i, itemizing, maybe_PERMS_REPORT, |
59faec8b | 1156 | code, allowed_lull, f_out, f_out_name); |
bc63ae3f | 1157 | } |
2f03f956 | 1158 | |
bc63ae3f | 1159 | phase++; |
0492fdfb WD |
1160 | only_existing = save_only_existing; |
1161 | opt_ignore_existing = save_opt_ignore_existing; | |
1162 | ||
bc63ae3f S |
1163 | if (verbose > 2) |
1164 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 1165 | |
7daccb8e | 1166 | write_int(f_out, -1); |
6dff5992 | 1167 | |
b0da4b23 WD |
1168 | /* Read post-redo-phase MSG_DONE and any prior messages. */ |
1169 | get_redo_num(); | |
1170 | ||
6dff5992 | 1171 | if (preserve_hard_links) |
18a11cfd | 1172 | do_hard_links(allowed_lull, flist->count); |
6dff5992 | 1173 | |
59faec8b WD |
1174 | if (delete_after && !local_name && flist->count > 0) |
1175 | do_delete_pass(flist, allowed_lull); | |
1176 | ||
0492fdfb WD |
1177 | if ((need_retouch_dir_perms || need_retouch_dir_times) |
1178 | && !list_only && !local_name && !dry_run) { | |
18a11cfd | 1179 | int j = 0; |
3ea9bbd6 WD |
1180 | /* Now we need to fix any directory permissions that were |
1181 | * modified during the transfer and/or re-set any tweaked | |
1182 | * modified-time values. */ | |
1183 | for (i = 0; i < flist->count; i++) { | |
1184 | struct file_struct *file = flist->files[i]; | |
1185 | if (!file->basename || !S_ISDIR(file->mode)) | |
1186 | continue; | |
1187 | if (!need_retouch_dir_times && file->mode & S_IWUSR) | |
1188 | continue; | |
1189 | recv_generator(local_name ? local_name : f_name(file), | |
7433d73a | 1190 | flist, file, i, itemizing, |
59faec8b WD |
1191 | maybe_PERMS_REPORT, code, allowed_lull, |
1192 | -1, -1); | |
18a11cfd | 1193 | if (allowed_lull && !(j++ % lull_mod)) |
b5587288 | 1194 | maybe_send_keepalive(allowed_lull, flist->count); |
3ea9bbd6 | 1195 | } |
6dff5992 | 1196 | } |
59faec8b | 1197 | recv_generator(NULL, NULL, NULL, 0, 0, 0, code, 0, -1, -1); |
6dff5992 WD |
1198 | |
1199 | if (verbose > 2) | |
1200 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 1201 | } |