Commit | Line | Data |
---|---|---|
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; |
ee1d11c4 | 61 | extern int sock_f_out; |
9ac2395b | 62 | extern int ignore_timeout; |
d04e9c51 | 63 | extern int protocol_version; |
8e85be0a | 64 | extern int fuzzy_basis; |
2f03f956 | 65 | extern int always_checksum; |
a7260c40 | 66 | extern char *partial_dir; |
b7e8628c | 67 | extern char *basis_dir[]; |
2be2fb3e | 68 | extern int compare_dest; |
59c95e42 | 69 | extern int link_dest; |
5774786f WD |
70 | extern int whole_file; |
71 | extern int local_server; | |
5774786f | 72 | extern int list_only; |
b9f592fb | 73 | extern int read_batch; |
5774786f WD |
74 | extern int only_existing; |
75 | extern int orig_umask; | |
76 | extern int safe_symlinks; | |
a255c592 | 77 | extern long block_size; /* "long" because popt can't set an int32. */ |
59faec8b WD |
78 | extern int max_delete; |
79 | extern int force_delete; | |
80 | extern int one_file_system; | |
6c3862fa | 81 | extern struct stats stats; |
59faec8b WD |
82 | extern dev_t filesystem_dev; |
83 | extern char *backup_dir; | |
84 | extern char *backup_suffix; | |
85 | extern int backup_suffix_len; | |
ee1d11c4 | 86 | extern struct file_list *the_file_list; |
7842418b | 87 | extern struct filter_list_struct server_filter_list; |
97f9dcae | 88 | |
ee1d11c4 WD |
89 | int allowed_lull = 0; |
90 | ||
59faec8b WD |
91 | static int deletion_count = 0; /* used to implement --max-delete */ |
92 | ||
93 | ||
94 | static int is_backup_file(char *fn) | |
95 | { | |
96 | int k = strlen(fn) - backup_suffix_len; | |
97 | return k > 0 && strcmp(fn+k, backup_suffix) == 0; | |
98 | } | |
99 | ||
100 | ||
101 | /* Delete a file or directory. If DEL_FORCE_RECURSE is set in the flags, or if | |
102 | * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE | |
103 | * is not set in the flags. */ | |
104 | static int delete_item(char *fname, int mode, int flags) | |
105 | { | |
106 | struct file_list *dirlist; | |
107 | char buf[MAXPATHLEN]; | |
108 | int j, dlen, zap_dir, ok; | |
109 | void *save_filters; | |
110 | ||
59faec8b | 111 | if (!S_ISDIR(mode)) { |
f75a53e7 WD |
112 | if (max_delete && ++deletion_count > max_delete) |
113 | return 0; | |
59faec8b WD |
114 | if (make_backups && (backup_dir || !is_backup_file(fname))) |
115 | ok = make_backup(fname); | |
116 | else | |
117 | ok = robust_unlink(fname) == 0; | |
118 | if (ok) { | |
119 | if (!(flags & DEL_TERSE)) | |
120 | log_delete(fname, mode); | |
59faec8b WD |
121 | return 0; |
122 | } | |
f75a53e7 WD |
123 | if (errno == ENOENT) { |
124 | deletion_count--; | |
59faec8b | 125 | return 0; |
f75a53e7 | 126 | } |
59faec8b WD |
127 | rsyserr(FERROR, errno, "delete_file: unlink %s failed", |
128 | full_fname(fname)); | |
129 | return -1; | |
130 | } | |
131 | ||
132 | zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse)) | |
133 | && !(flags & DEL_NO_RECURSE); | |
f75a53e7 WD |
134 | if ((max_delete && ++deletion_count > max_delete) |
135 | || (dry_run && zap_dir)) { | |
59faec8b WD |
136 | ok = 0; |
137 | errno = ENOTEMPTY; | |
138 | } else if (make_backups && !backup_dir && !is_backup_file(fname) | |
139 | && !(flags & DEL_FORCE_RECURSE)) | |
140 | ok = make_backup(fname); | |
141 | else | |
142 | ok = do_rmdir(fname) == 0; | |
143 | if (ok) { | |
144 | if (!(flags & DEL_TERSE)) | |
145 | log_delete(fname, mode); | |
59faec8b WD |
146 | return 0; |
147 | } | |
f75a53e7 WD |
148 | if (errno == ENOENT) { |
149 | deletion_count--; | |
59faec8b | 150 | return 0; |
f75a53e7 | 151 | } |
59faec8b WD |
152 | if (!zap_dir || (errno != ENOTEMPTY && errno != EEXIST)) { |
153 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", | |
154 | full_fname(fname)); | |
155 | return -1; | |
156 | } | |
f62eaa24 | 157 | flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */ |
f75a53e7 | 158 | deletion_count--; |
59faec8b WD |
159 | |
160 | dlen = strlcpy(buf, fname, MAXPATHLEN); | |
161 | save_filters = push_local_filters(buf, dlen); | |
162 | ||
163 | dirlist = get_dirlist(buf, dlen, 0); | |
164 | for (j = dirlist->count; j--; ) { | |
165 | struct file_struct *fp = dirlist->files[j]; | |
166 | ||
167 | if (fp->flags & FLAG_MOUNT_POINT) | |
168 | continue; | |
169 | ||
170 | f_name_to(fp, buf); | |
171 | if (delete_item(buf, fp->mode, flags & ~DEL_TERSE) != 0) { | |
172 | flist_free(dirlist); | |
173 | return -1; | |
174 | } | |
175 | } | |
176 | flist_free(dirlist); | |
177 | ||
178 | pop_local_filters(save_filters); | |
179 | ||
f75a53e7 WD |
180 | if (max_delete && ++deletion_count > max_delete) |
181 | return 0; | |
59faec8b WD |
182 | |
183 | if (do_rmdir(fname) == 0) { | |
184 | if (!(flags & DEL_TERSE)) | |
185 | log_delete(fname, mode); | |
59faec8b WD |
186 | } else if (errno != ENOTEMPTY && errno != ENOENT) { |
187 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", | |
188 | full_fname(fname)); | |
189 | return -1; | |
190 | } | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | ||
196 | /* This function is used to implement per-directory deletion, and is used by | |
197 | * all the --delete-WHEN options. Note that the fbuf pointer must point to a | |
198 | * MAXPATHLEN buffer with the name of the directory in it (the functions we | |
199 | * call will append names onto the end, but the old dir value will be restored | |
200 | * on exit). */ | |
201 | static void delete_in_dir(struct file_list *flist, char *fbuf, | |
ee1d11c4 | 202 | struct file_struct *file) |
59faec8b WD |
203 | { |
204 | static int min_depth = MAXPATHLEN, cur_depth = -1; | |
205 | static void *filt_array[MAXPATHLEN/2+1]; | |
f75a53e7 | 206 | static int already_output_warning = 0; |
59faec8b WD |
207 | struct file_list *dirlist; |
208 | char delbuf[MAXPATHLEN]; | |
209 | STRUCT_STAT st; | |
210 | int dlen, i; | |
211 | ||
212 | if (!flist) { | |
213 | while (cur_depth >= min_depth) | |
214 | pop_local_filters(filt_array[cur_depth--]); | |
215 | min_depth = MAXPATHLEN; | |
216 | cur_depth = -1; | |
217 | return; | |
218 | } | |
219 | ||
220 | if (verbose > 2) | |
221 | rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf)); | |
222 | ||
223 | if (allowed_lull) | |
ee1d11c4 | 224 | maybe_send_keepalive(); |
59faec8b WD |
225 | |
226 | if (file->dir.depth >= MAXPATHLEN/2+1) | |
227 | return; /* Impossible... */ | |
228 | ||
59faec8b | 229 | if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) { |
f75a53e7 WD |
230 | if (already_output_warning) |
231 | return; | |
59faec8b WD |
232 | rprintf(FINFO, |
233 | "IO error encountered -- skipping file deletion\n"); | |
f75a53e7 | 234 | already_output_warning = 1; |
59faec8b WD |
235 | return; |
236 | } | |
237 | ||
238 | while (cur_depth >= file->dir.depth && cur_depth >= min_depth) | |
239 | pop_local_filters(filt_array[cur_depth--]); | |
240 | cur_depth = file->dir.depth; | |
241 | if (min_depth > cur_depth) | |
242 | min_depth = cur_depth; | |
243 | dlen = strlen(fbuf); | |
244 | filt_array[cur_depth] = push_local_filters(fbuf, dlen); | |
245 | ||
246 | if (link_stat(fbuf, &st, keep_dirlinks) < 0) | |
247 | return; | |
248 | ||
249 | if (one_file_system && file->flags & FLAG_TOP_DIR) | |
250 | filesystem_dev = st.st_dev; | |
251 | ||
252 | dirlist = get_dirlist(fbuf, dlen, 0); | |
253 | ||
254 | /* If an item in dirlist is not found in flist, delete it | |
255 | * from the filesystem. */ | |
256 | for (i = dirlist->count; i--; ) { | |
257 | if (!dirlist->files[i]->basename) | |
258 | continue; | |
259 | if (flist_find(flist, dirlist->files[i]) < 0) { | |
59faec8b | 260 | int mode = dirlist->files[i]->mode; |
251f22b5 | 261 | f_name_to(dirlist->files[i], delbuf); |
59faec8b WD |
262 | if (delete_item(delbuf, mode, DEL_FORCE_RECURSE) < 0) |
263 | break; | |
264 | } | |
265 | } | |
266 | ||
267 | flist_free(dirlist); | |
268 | } | |
269 | ||
270 | /* This deletes any files on the receiving side that are not present on the | |
271 | * sending side. This is used by --delete-before and --delete-after. */ | |
ee1d11c4 | 272 | static void do_delete_pass(struct file_list *flist) |
59faec8b WD |
273 | { |
274 | char fbuf[MAXPATHLEN]; | |
275 | int j; | |
276 | ||
f75a53e7 WD |
277 | if (dry_run > 1) /* destination doesn't exist yet */ |
278 | return; | |
279 | ||
59faec8b WD |
280 | for (j = 0; j < flist->count; j++) { |
281 | struct file_struct *file = flist->files[j]; | |
282 | ||
283 | if (!(file->flags & FLAG_DEL_HERE)) | |
284 | continue; | |
285 | ||
286 | f_name_to(file, fbuf); | |
287 | if (verbose > 1 && file->flags & FLAG_TOP_DIR) | |
288 | rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf)); | |
289 | ||
ee1d11c4 | 290 | delete_in_dir(flist, fbuf, file); |
59faec8b WD |
291 | } |
292 | } | |
293 | ||
b7e8628c | 294 | static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st) |
2f03f956 | 295 | { |
b7e8628c WD |
296 | if (preserve_perms |
297 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) | |
84acca07 | 298 | return 0; |
bb24028f | 299 | |
b7e8628c WD |
300 | if (am_root && preserve_uid && st->st_uid != file->uid) |
301 | return 0; | |
bb24028f | 302 | |
b7e8628c WD |
303 | if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid) |
304 | return 0; | |
305 | ||
306 | return 1; | |
307 | } | |
308 | ||
06a1dbad | 309 | |
ee1d11c4 WD |
310 | void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st, |
311 | int32 iflags, char *hlink) | |
06a1dbad | 312 | { |
e86ae6bc | 313 | if (statret == 0) { |
c557eb8c WD |
314 | if (S_ISREG(file->mode) && file->length != st->st_size) |
315 | iflags |= ITEM_REPORT_SIZE; | |
a1d23b53 | 316 | if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) { |
88b218fa WD |
317 | int keep_time = !preserve_times ? 0 |
318 | : S_ISDIR(file->mode) ? !omit_dir_times | |
319 | : !S_ISLNK(file->mode); | |
320 | ||
ee1d11c4 | 321 | if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time) |
88b218fa WD |
322 | || (keep_time && file->modtime != st->st_mtime)) |
323 | iflags |= ITEM_REPORT_TIME; | |
324 | if (preserve_perms && file->mode != st->st_mode) | |
325 | iflags |= ITEM_REPORT_PERMS; | |
326 | if (preserve_uid && am_root && file->uid != st->st_uid) | |
327 | iflags |= ITEM_REPORT_OWNER; | |
328 | if (preserve_gid && file->gid != GID_NONE | |
329 | && st->st_gid != file->gid) | |
330 | iflags |= ITEM_REPORT_GROUP; | |
331 | } | |
ee1d11c4 WD |
332 | } else { |
333 | iflags |= ITEM_IS_NEW; | |
334 | if (!(iflags & (ITEM_HARD_LINKED|ITEM_LOCAL_CHANGE))) | |
335 | iflags |= ITEM_TRANSFER; | |
336 | } | |
c557eb8c | 337 | |
a1d23b53 | 338 | iflags &= 0xffff; |
ee1d11c4 WD |
339 | if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1 |
340 | || (hlink && *hlink)) && !read_batch) { | |
6c3862fa WD |
341 | if (protocol_version >= 29) { |
342 | if (ndx >= 0) | |
ee1d11c4 WD |
343 | write_int(sock_f_out, ndx); |
344 | write_shortint(sock_f_out, iflags); | |
345 | if (hlink) | |
346 | write_vstring(sock_f_out, hlink, strlen(hlink)); | |
6c3862fa | 347 | } else if (ndx >= 0) |
ee1d11c4 | 348 | log_item(file, &stats, iflags, hlink); |
06a1dbad WD |
349 | } |
350 | } | |
351 | ||
352 | ||
b7e8628c WD |
353 | /* Perform our quick-check heuristic for determining if a file is unchanged. */ |
354 | static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st) | |
355 | { | |
356 | if (st->st_size != file->length) | |
357 | return 0; | |
59c95e42 | 358 | |
2cda2560 | 359 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
360 | of the file time to determine whether to sync */ |
361 | if (always_checksum && S_ISREG(st->st_mode)) { | |
362 | char sum[MD4_SUM_LENGTH]; | |
b7e8628c | 363 | file_checksum(fn, sum, st->st_size); |
728d0922 | 364 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
84acca07 | 365 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
366 | } |
367 | ||
cc1e997d | 368 | if (size_only) |
84acca07 | 369 | return 1; |
2f03f956 | 370 | |
cc1e997d | 371 | if (ignore_times) |
84acca07 | 372 | return 0; |
cc1e997d | 373 | |
84acca07 | 374 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
375 | } |
376 | ||
377 | ||
ec8290c8 | 378 | /* |
195bd906 | 379 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 380 | * calculating dynamic block and checksum sizes. |
195bd906 | 381 | * |
ec8290c8 | 382 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
383 | * function to encapsulate the logic. |
384 | * | |
385 | * The block size is a rounded square root of file length. | |
386 | * | |
387 | * The checksum size is determined according to: | |
ed7e7955 | 388 | * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len) |
195bd906 S |
389 | * provided by Donovan Baarda which gives a probability of rsync |
390 | * algorithm corrupting data and falling back using the whole md4 | |
391 | * checksums. | |
392 | * | |
393 | * This might be made one of several selectable heuristics. | |
394 | */ | |
1490812a | 395 | static void sum_sizes_sqroot(struct sum_struct *sum, int64 len) |
195bd906 | 396 | { |
a255c592 | 397 | int32 blength; |
da9d12f5 | 398 | int s2length; |
195bd906 | 399 | |
a255c592 | 400 | if (block_size) |
195bd906 | 401 | blength = block_size; |
a255c592 | 402 | else if (len <= BLOCK_SIZE * BLOCK_SIZE) |
195bd906 | 403 | blength = BLOCK_SIZE; |
a255c592 WD |
404 | else { |
405 | int32 c; | |
1490812a | 406 | int64 l; |
eae7165c WD |
407 | int cnt; |
408 | for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {} | |
409 | if (cnt >= 31 || c >= MAX_BLOCK_SIZE) | |
410 | blength = MAX_BLOCK_SIZE; | |
411 | else { | |
412 | blength = 0; | |
413 | do { | |
414 | blength |= c; | |
1490812a | 415 | if (len < (int64)blength * blength) |
eae7165c WD |
416 | blength &= ~c; |
417 | c >>= 1; | |
418 | } while (c >= 8); /* round to multiple of 8 */ | |
419 | blength = MAX(blength, BLOCK_SIZE); | |
195bd906 | 420 | } |
195bd906 S |
421 | } |
422 | ||
d04e9c51 | 423 | if (protocol_version < 27) { |
195bd906 S |
424 | s2length = csum_length; |
425 | } else if (csum_length == SUM_LENGTH) { | |
426 | s2length = SUM_LENGTH; | |
427 | } else { | |
a255c592 | 428 | int32 c; |
1490812a | 429 | int64 l; |
da9d12f5 | 430 | int b = BLOCKSUM_BIAS; |
a255c592 WD |
431 | for (l = len; l >>= 1; b += 2) {} |
432 | for (c = blength; c >>= 1 && b; b--) {} | |
433 | /* add a bit, subtract rollsum, round up. */ | |
434 | s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */ | |
195bd906 S |
435 | s2length = MAX(s2length, csum_length); |
436 | s2length = MIN(s2length, SUM_LENGTH); | |
437 | } | |
438 | ||
439 | sum->flength = len; | |
440 | sum->blength = blength; | |
441 | sum->s2length = s2length; | |
442 | sum->count = (len + (blength - 1)) / blength; | |
443 | sum->remainder = (len % blength); | |
444 | ||
445 | if (sum->count && verbose > 2) { | |
a255c592 WD |
446 | rprintf(FINFO, |
447 | "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n", | |
448 | (double)sum->count, (long)sum->remainder, (long)sum->blength, | |
da9d12f5 | 449 | sum->s2length, (double)sum->flength); |
195bd906 S |
450 | } |
451 | } | |
80605142 | 452 | |
bceec82f | 453 | |
80605142 WD |
454 | /* |
455 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 456 | * |
80605142 WD |
457 | * Generate approximately one checksum every block_len bytes. |
458 | */ | |
cd6aa5b5 | 459 | static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy) |
2f03f956 | 460 | { |
a1cbe76e | 461 | int32 i; |
6e45e1dd | 462 | struct map_struct *mapbuf; |
80605142 | 463 | struct sum_struct sum; |
2f03f956 AT |
464 | OFF_T offset = 0; |
465 | ||
423dba8e | 466 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 467 | |
6e45e1dd | 468 | if (len > 0) |
96d910c7 | 469 | mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength); |
6e45e1dd WD |
470 | else |
471 | mapbuf = NULL; | |
472 | ||
fc0257c9 | 473 | write_sum_head(f_out, &sum); |
2f03f956 | 474 | |
80605142 | 475 | for (i = 0; i < sum.count; i++) { |
a255c592 | 476 | int32 n1 = (int32)MIN(len, (OFF_T)sum.blength); |
6e45e1dd | 477 | char *map = map_ptr(mapbuf, offset, n1); |
80605142 WD |
478 | uint32 sum1 = get_checksum1(map, n1); |
479 | char sum2[SUM_LENGTH]; | |
2f03f956 | 480 | |
cd6aa5b5 WD |
481 | if (f_copy >= 0) |
482 | full_write(f_copy, map, n1); | |
483 | ||
80605142 | 484 | get_checksum2(map, n1, sum2); |
2f03f956 | 485 | |
80605142 | 486 | if (verbose > 3) { |
e66dfd18 | 487 | rprintf(FINFO, |
a255c592 WD |
488 | "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n", |
489 | (double)i, (double)offset, (long)n1, | |
0e36d9da | 490 | (unsigned long)sum1); |
80605142 WD |
491 | } |
492 | write_int(f_out, sum1); | |
fc0257c9 | 493 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
494 | len -= n1; |
495 | offset += n1; | |
496 | } | |
6e45e1dd WD |
497 | |
498 | if (mapbuf) | |
499 | unmap_file(mapbuf); | |
2f03f956 AT |
500 | } |
501 | ||
06a1dbad | 502 | |
8e85be0a WD |
503 | /* Try to find a filename in the same dir as "fname" with a similar name. */ |
504 | static int find_fuzzy(struct file_struct *file, struct file_list *dirlist) | |
505 | { | |
506 | int fname_len, fname_suf_len; | |
507 | const char *fname_suf, *fname = file->basename; | |
508 | uint32 lowest_dist = 0x7FFFFFFF; | |
509 | int j, lowest_j = -1; | |
510 | ||
511 | fname_len = strlen(fname); | |
512 | fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len); | |
513 | ||
514 | for (j = 0; j < dirlist->count; j++) { | |
515 | struct file_struct *fp = dirlist->files[j]; | |
516 | const char *suf, *name; | |
517 | int len, suf_len; | |
518 | uint32 dist; | |
519 | ||
520 | if (!S_ISREG(fp->mode) || !fp->length | |
521 | || fp->flags & FLAG_NO_FUZZY) | |
522 | continue; | |
523 | ||
524 | name = fp->basename; | |
525 | ||
526 | if (fp->length == file->length | |
527 | && fp->modtime == file->modtime) { | |
528 | if (verbose > 4) { | |
529 | rprintf(FINFO, | |
530 | "fuzzy size/modtime match for %s\n", | |
531 | name); | |
532 | } | |
533 | return j; | |
534 | } | |
535 | ||
536 | len = strlen(name); | |
537 | suf = find_filename_suffix(name, len, &suf_len); | |
538 | ||
539 | dist = fuzzy_distance(name, len, fname, fname_len); | |
540 | /* Add some extra weight to how well the suffixes match. */ | |
541 | dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len) | |
542 | * 10; | |
543 | if (verbose > 4) { | |
544 | rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n", | |
545 | name, (int)(dist>>16), (int)(dist&0xFFFF)); | |
546 | } | |
547 | if (dist <= lowest_dist) { | |
548 | lowest_dist = dist; | |
549 | lowest_j = j; | |
550 | } | |
551 | } | |
552 | ||
553 | return lowest_j; | |
554 | } | |
555 | ||
ee1d11c4 WD |
556 | void check_for_finished_hlinks(int itemizing, enum logcode code) |
557 | { | |
558 | struct file_struct *file; | |
559 | int ndx; | |
560 | ||
561 | while ((ndx = get_hlink_num()) != -1) { | |
562 | if (ndx < 0 || ndx >= the_file_list->count) | |
563 | continue; | |
564 | ||
565 | file = the_file_list->files[ndx]; | |
566 | if (!file->link_u.links) | |
567 | continue; | |
568 | ||
569 | hard_link_cluster(file, ndx, itemizing, code); | |
570 | } | |
571 | } | |
2f03f956 | 572 | |
ed7e7955 WD |
573 | static int phase = 0; |
574 | ||
ee1d11c4 | 575 | /* Acts on the_file_list->file's ndx'th item, whose name is fname. If a dir, |
0492fdfb WD |
576 | * make sure it exists, and has the right permissions/timestamp info. For |
577 | * all other non-regular files (symlinks, etc.) we create them here. For | |
578 | * regular files that have changed, we try to find a basis file and then | |
579 | * start sending checksums. | |
ef1aa910 | 580 | * |
0492fdfb WD |
581 | * Note that f_out is set to -1 when doing final directory-permission and |
582 | * modification-time repair. */ | |
ee1d11c4 | 583 | static void recv_generator(char *fname, struct file_struct *file, int ndx, |
7433d73a | 584 | int itemizing, int maybe_PERMS_REPORT, |
ee1d11c4 | 585 | enum logcode code, int f_out, int f_out_name) |
2cda2560 | 586 | { |
8174bc35 | 587 | static int missing_below = -1, excluded_below = -1; |
8e85be0a WD |
588 | static char *fuzzy_dirname = NULL; |
589 | static struct file_list *fuzzy_dirlist = NULL; | |
590 | struct file_struct *fuzzy_file = NULL; | |
41cfde6b | 591 | int fd = -1, f_copy = -1; |
89f7eff3 | 592 | STRUCT_STAT st, partial_st; |
41cfde6b | 593 | struct file_struct *back_file = NULL; |
e7d13fe5 | 594 | int statret, stat_errno; |
41cfde6b | 595 | char *fnamecmp, *partialptr, *backupptr = NULL; |
375a4556 | 596 | char fnamecmpbuf[MAXPATHLEN]; |
41cfde6b | 597 | uchar fnamecmp_type; |
f7632fc6 | 598 | |
dfd5ba6a WD |
599 | if (list_only) |
600 | return; | |
2f03f956 | 601 | |
8e85be0a WD |
602 | if (!fname) { |
603 | if (fuzzy_dirlist) { | |
604 | flist_free(fuzzy_dirlist); | |
605 | fuzzy_dirlist = NULL; | |
606 | fuzzy_dirname = NULL; | |
607 | } | |
608 | if (missing_below >= 0) { | |
609 | dry_run--; | |
610 | missing_below = -1; | |
611 | } | |
612 | return; | |
613 | } | |
614 | ||
4875d6b6 WD |
615 | if (verbose > 2) { |
616 | rprintf(FINFO, "recv_generator(%s,%d)\n", | |
617 | safe_fname(fname), ndx); | |
618 | } | |
2f03f956 | 619 | |
8174bc35 WD |
620 | if (server_filter_list.head) { |
621 | if (excluded_below >= 0) { | |
622 | if (file->dir.depth > excluded_below) | |
623 | goto skipping; | |
624 | excluded_below = -1; | |
625 | } | |
626 | if (check_filter(&server_filter_list, fname, | |
627 | S_ISDIR(file->mode)) < 0) { | |
628 | if (S_ISDIR(file->mode)) | |
629 | excluded_below = file->dir.depth; | |
630 | skipping: | |
631 | if (verbose) { | |
632 | rprintf(FINFO, | |
633 | "skipping server-excluded file \"%s\"\n", | |
634 | safe_fname(fname)); | |
635 | } | |
636 | return; | |
3e35c34b | 637 | } |
3e35c34b | 638 | } |
97f9dcae | 639 | |
8e85be0a | 640 | if (missing_below >= 0 && file->dir.depth <= missing_below) { |
df337831 WD |
641 | dry_run--; |
642 | missing_below = -1; | |
643 | } | |
73f7af0e WD |
644 | if (dry_run > 1) { |
645 | statret = -1; | |
646 | stat_errno = ENOENT; | |
647 | } else { | |
8e85be0a WD |
648 | if (fuzzy_basis && S_ISREG(file->mode)) { |
649 | char *dn = file->dirname ? file->dirname : "."; | |
650 | /* Yes, identical dirnames are guaranteed to have | |
651 | * identical pointers at this point. */ | |
652 | if (fuzzy_dirname != dn) { | |
653 | if (fuzzy_dirlist) | |
654 | flist_free(fuzzy_dirlist); | |
655 | fuzzy_dirname = dn; | |
59faec8b WD |
656 | fuzzy_dirlist = get_dirlist(fuzzy_dirname, -1, |
657 | 1); | |
8e85be0a WD |
658 | } |
659 | } | |
660 | ||
73f7af0e WD |
661 | statret = link_stat(fname, &st, |
662 | keep_dirlinks && S_ISDIR(file->mode)); | |
663 | stat_errno = errno; | |
664 | } | |
63787382 | 665 | |
a7260c40 | 666 | if (only_existing && statret == -1 && stat_errno == ENOENT) { |
1347d512 | 667 | /* we only want to update existing files */ |
ecc81fce WD |
668 | if (verbose > 1) { |
669 | rprintf(FINFO, "not creating new file \"%s\"\n", | |
670 | safe_fname(fname)); | |
671 | } | |
1347d512 AT |
672 | return; |
673 | } | |
674 | ||
d9b4d267 WD |
675 | if (statret == 0 && !preserve_perms |
676 | && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) { | |
4df9f368 | 677 | /* if the file exists already and we aren't perserving |
2cda2560 WD |
678 | * permissions then act as though the remote end sent |
679 | * us the file permissions we already have */ | |
67e78a82 WD |
680 | file->mode = (file->mode & ~CHMOD_BITS) |
681 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
682 | } |
683 | ||
2f03f956 | 684 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
685 | /* The file to be received is a directory, so we need |
686 | * to prepare appropriately. If there is already a | |
687 | * file of that name and it is *not* a directory, then | |
688 | * we need to delete it. If it doesn't exist, then | |
027428eb | 689 | * (perhaps recursively) create it. */ |
2f03f956 | 690 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
59faec8b | 691 | delete_item(fname, st.st_mode, DEL_TERSE); |
2f03f956 AT |
692 | statret = -1; |
693 | } | |
df337831 WD |
694 | if (dry_run && statret != 0 && missing_below < 0) { |
695 | missing_below = file->dir.depth; | |
696 | dry_run++; | |
697 | } | |
ee1d11c4 WD |
698 | if (itemizing && f_out != -1) { |
699 | itemize(file, ndx, statret, &st, | |
700 | statret ? ITEM_LOCAL_CHANGE : 0, NULL); | |
701 | } | |
2f03f956 | 702 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { |
027428eb WD |
703 | if (!relative_paths || errno != ENOENT |
704 | || create_directory_path(fname, orig_umask) < 0 | |
705 | || do_mkdir(fname, file->mode) < 0) { | |
d62bcc17 WD |
706 | rsyserr(FERROR, errno, |
707 | "recv_generator: mkdir %s failed", | |
708 | full_fname(fname)); | |
2f03f956 AT |
709 | } |
710 | } | |
716e73d4 | 711 | if (set_perms(fname, file, statret ? NULL : &st, 0) |
6c3862fa WD |
712 | && verbose && code && f_out != -1) |
713 | rprintf(code, "%s/\n", safe_fname(fname)); | |
f75a53e7 | 714 | if (delete_during && f_out != -1 && !phase && dry_run < 2 |
31937d36 | 715 | && (file->flags & FLAG_DEL_HERE)) |
ee1d11c4 | 716 | delete_in_dir(the_file_list, fname, file); |
2f03f956 | 717 | return; |
06a1dbad | 718 | } |
6c3862fa | 719 | |
06a1dbad | 720 | if (max_size && file->length > max_size) { |
4875d6b6 WD |
721 | if (verbose > 1) { |
722 | rprintf(FINFO, "%s is over max-size\n", | |
723 | safe_fname(fname)); | |
724 | } | |
7d1bfaf7 | 725 | return; |
2f03f956 AT |
726 | } |
727 | ||
728 | if (preserve_links && S_ISLNK(file->mode)) { | |
4f5b0756 | 729 | #ifdef SUPPORT_LINKS |
728d0922 | 730 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 731 | if (verbose) { |
4875d6b6 WD |
732 | rprintf(FINFO, |
733 | "ignoring unsafe symlink %s -> \"%s\"\n", | |
734 | full_fname(fname), | |
735 | safe_fname(file->u.link)); | |
2f03f956 AT |
736 | } |
737 | return; | |
738 | } | |
739 | if (statret == 0) { | |
7e38410e WD |
740 | char lnk[MAXPATHLEN]; |
741 | int len; | |
742 | ||
8a8356b7 | 743 | if (!S_ISDIR(st.st_mode) |
7e38410e WD |
744 | && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) { |
745 | lnk[len] = 0; | |
85d4d142 MP |
746 | /* A link already pointing to the |
747 | * right place -- no further action | |
748 | * required. */ | |
7e38410e | 749 | if (strcmp(lnk, file->u.link) == 0) { |
6c3862fa | 750 | if (itemizing) { |
ee1d11c4 WD |
751 | itemize(file, ndx, 0, &st, 0, |
752 | NULL); | |
c557eb8c | 753 | } |
c41b52c4 | 754 | set_perms(fname, file, &st, |
8a8356b7 | 755 | maybe_PERMS_REPORT); |
2f03f956 AT |
756 | return; |
757 | } | |
2cda2560 | 758 | } |
7e38410e WD |
759 | /* Not the right symlink (or not a symlink), so |
760 | * delete it. */ | |
88b218fa | 761 | if (S_ISLNK(st.st_mode)) |
59faec8b | 762 | delete_item(fname, st.st_mode, DEL_TERSE); |
88b218fa | 763 | else { |
59faec8b | 764 | delete_item(fname, st.st_mode, DEL_TERSE); |
88b218fa WD |
765 | statret = -1; |
766 | } | |
2f03f956 | 767 | } |
728d0922 | 768 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 | 769 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
ecc81fce | 770 | full_fname(fname), safe_fname(file->u.link)); |
2f03f956 AT |
771 | } else { |
772 | set_perms(fname,file,NULL,0); | |
6c3862fa | 773 | if (itemizing) { |
ee1d11c4 WD |
774 | itemize(file, ndx, statret, &st, |
775 | ITEM_LOCAL_CHANGE, NULL); | |
6c3862fa WD |
776 | } |
777 | if (code && verbose) { | |
778 | rprintf(code, "%s -> %s\n", safe_fname(fname), | |
c557eb8c | 779 | safe_fname(file->u.link)); |
2f03f956 | 780 | } |
fe960187 WD |
781 | if (remove_sent_files && !dry_run) { |
782 | char numbuf[4]; | |
783 | SIVAL(numbuf, 0, ndx); | |
784 | send_msg(MSG_SUCCESS, numbuf, 4); | |
785 | } | |
2f03f956 AT |
786 | } |
787 | #endif | |
788 | return; | |
789 | } | |
790 | ||
2f03f956 | 791 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { |
2cda2560 | 792 | if (statret != 0 || |
2f03f956 | 793 | st.st_mode != file->mode || |
3915fd75 | 794 | st.st_rdev != file->u.rdev) { |
59faec8b WD |
795 | delete_item(fname, st.st_mode, DEL_TERSE); |
796 | if (!IS_DEVICE(st.st_mode)) | |
88b218fa | 797 | statret = -1; |
d62bcc17 | 798 | if (verbose > 2) { |
2f03f956 | 799 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
ecc81fce WD |
800 | safe_fname(fname), |
801 | (int)file->mode, (int)file->u.rdev); | |
d62bcc17 | 802 | } |
728d0922 | 803 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
804 | rsyserr(FERROR, errno, "mknod %s failed", |
805 | full_fname(fname)); | |
2f03f956 AT |
806 | } else { |
807 | set_perms(fname,file,NULL,0); | |
6c3862fa | 808 | if (itemizing) { |
ee1d11c4 WD |
809 | itemize(file, ndx, statret, &st, |
810 | ITEM_LOCAL_CHANGE, NULL); | |
6c3862fa WD |
811 | } |
812 | if (code && verbose) { | |
813 | rprintf(code, "%s\n", | |
ecc81fce WD |
814 | safe_fname(fname)); |
815 | } | |
2f03f956 AT |
816 | } |
817 | } else { | |
ee1d11c4 WD |
818 | if (itemizing) |
819 | itemize(file, ndx, statret, &st, 0, NULL); | |
8a8356b7 | 820 | set_perms(fname, file, &st, maybe_PERMS_REPORT); |
2f03f956 AT |
821 | } |
822 | return; | |
823 | } | |
2f03f956 | 824 | |
ee1d11c4 | 825 | if (preserve_hard_links && hard_link_check(file, ndx, HL_CHECK_MASTER)) |
2f03f956 | 826 | return; |
2f03f956 AT |
827 | |
828 | if (!S_ISREG(file->mode)) { | |
ecc81fce WD |
829 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", |
830 | safe_fname(fname)); | |
2f03f956 AT |
831 | return; |
832 | } | |
833 | ||
c3cbcfb8 WD |
834 | if (opt_ignore_existing && statret == 0) { |
835 | if (verbose > 1) | |
836 | rprintf(FINFO, "%s exists\n", safe_fname(fname)); | |
837 | return; | |
838 | } | |
839 | ||
840 | if (update_only && statret == 0 | |
841 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { | |
842 | if (verbose > 1) | |
843 | rprintf(FINFO, "%s is newer\n", safe_fname(fname)); | |
844 | return; | |
845 | } | |
846 | ||
375a4556 | 847 | fnamecmp = fname; |
41cfde6b | 848 | fnamecmp_type = FNAMECMP_FNAME; |
375a4556 | 849 | |
06a1dbad | 850 | if (statret != 0 && basis_dir[0] != NULL) { |
aef98825 | 851 | int best_match = -1; |
b7e8628c WD |
852 | int match_level = 0; |
853 | int i = 0; | |
854 | do { | |
855 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, | |
856 | basis_dir[i], fname); | |
aef98825 WD |
857 | if (link_stat(fnamecmpbuf, &st, 0) < 0 |
858 | || !S_ISREG(st.st_mode)) | |
859 | continue; | |
860 | switch (match_level) { | |
861 | case 0: | |
862 | best_match = i; | |
863 | match_level = 1; | |
aef98825 WD |
864 | /* FALL THROUGH */ |
865 | case 1: | |
866 | if (!unchanged_file(fnamecmpbuf, file, &st)) | |
867 | continue; | |
868 | best_match = i; | |
869 | match_level = 2; | |
870 | /* FALL THROUGH */ | |
871 | case 2: | |
872 | if (!unchanged_attrs(file, &st)) | |
873 | continue; | |
874 | best_match = i; | |
b7e8628c WD |
875 | match_level = 3; |
876 | break; | |
877 | } | |
aef98825 | 878 | break; |
b7e8628c | 879 | } while (basis_dir[++i] != NULL); |
aef98825 | 880 | if (match_level) { |
9ba46343 | 881 | statret = 0; |
aef98825 WD |
882 | if (i != best_match) { |
883 | i = best_match; | |
b7e8628c WD |
884 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, |
885 | basis_dir[i], fname); | |
9ba46343 WD |
886 | if (link_stat(fnamecmpbuf, &st, 0) < 0) { |
887 | match_level = 0; | |
888 | statret = -1; | |
a1d23b53 | 889 | stat_errno = errno; |
9ba46343 | 890 | } |
b7e8628c | 891 | } |
4f5b0756 | 892 | #ifdef HAVE_LINK |
ee1d11c4 WD |
893 | if (link_dest && match_level == 3) { |
894 | if (hard_link_one(file, ndx, fname, -1, &st, | |
895 | fnamecmpbuf, 1, | |
896 | itemizing && verbose > 1, | |
897 | code) == 0) | |
898 | return; | |
70b54e4e WD |
899 | if (verbose) { |
900 | rsyserr(FINFO, errno, "link %s => %s", | |
901 | full_fname(fnamecmpbuf), | |
902 | safe_fname(fname)); | |
e7bc9b64 | 903 | } |
e2243317 | 904 | match_level = 2; |
70b54e4e | 905 | } |
59c95e42 | 906 | #endif |
e2243317 | 907 | if (compare_dest || (match_level && match_level < 3)) { |
e7d13fe5 | 908 | fnamecmp = fnamecmpbuf; |
2be2fb3e | 909 | fnamecmp_type = i; |
41cfde6b | 910 | } |
e7d13fe5 WD |
911 | } |
912 | } | |
913 | ||
914 | if (statret == 0 && !S_ISREG(st.st_mode)) { | |
59faec8b | 915 | if (delete_item(fname, st.st_mode, DEL_TERSE) != 0) |
e7d13fe5 WD |
916 | return; |
917 | statret = -1; | |
918 | stat_errno = ENOENT; | |
375a4556 DD |
919 | } |
920 | ||
9d954dca | 921 | if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL |
72c19bb3 WD |
922 | && link_stat(partialptr, &partial_st, 0) == 0 |
923 | && S_ISREG(partial_st.st_mode)) { | |
06a1dbad | 924 | if (statret != 0) |
72c19bb3 WD |
925 | goto prepare_to_open; |
926 | } else | |
927 | partialptr = NULL; | |
89f7eff3 | 928 | |
06a1dbad | 929 | if (statret != 0 && fuzzy_basis && dry_run <= 1) { |
8e85be0a WD |
930 | int j = find_fuzzy(file, fuzzy_dirlist); |
931 | if (j >= 0) { | |
932 | fuzzy_file = fuzzy_dirlist->files[j]; | |
933 | f_name_to(fuzzy_file, fnamecmpbuf); | |
934 | if (verbose > 2) { | |
935 | rprintf(FINFO, "fuzzy basis selected for %s: %s\n", | |
936 | safe_fname(fname), safe_fname(fnamecmpbuf)); | |
937 | } | |
938 | st.st_mode = fuzzy_file->mode; | |
939 | st.st_size = fuzzy_file->length; | |
940 | st.st_mtime = fuzzy_file->modtime; | |
941 | statret = 0; | |
942 | fnamecmp = fnamecmpbuf; | |
943 | fnamecmp_type = FNAMECMP_FUZZY; | |
944 | } | |
945 | } | |
946 | ||
06a1dbad | 947 | if (statret != 0) { |
ee1d11c4 | 948 | if (preserve_hard_links && hard_link_check(file, ndx, HL_SKIP)) |
6dff5992 | 949 | return; |
41cfde6b WD |
950 | if (stat_errno == ENOENT) |
951 | goto notify_others; | |
952 | if (verbose > 1) { | |
e7d13fe5 WD |
953 | rsyserr(FERROR, stat_errno, |
954 | "recv_generator: failed to stat %s", | |
d62bcc17 | 955 | full_fname(fname)); |
2f03f956 AT |
956 | } |
957 | return; | |
958 | } | |
959 | ||
2be2fb3e | 960 | if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH) |
b7e8628c | 961 | ; |
8e85be0a WD |
962 | else if (fnamecmp_type == FNAMECMP_FUZZY) |
963 | ; | |
b7e8628c | 964 | else if (unchanged_file(fnamecmp, file, &st)) { |
a1d23b53 WD |
965 | if (fnamecmp_type == FNAMECMP_FNAME) { |
966 | if (itemizing) | |
ee1d11c4 | 967 | itemize(file, ndx, statret, &st, 0, NULL); |
a1d23b53 | 968 | set_perms(fname, file, &st, maybe_PERMS_REPORT); |
ee1d11c4 WD |
969 | if (preserve_hard_links && file->link_u.links) |
970 | hard_link_cluster(file, ndx, itemizing, code); | |
a1d23b53 WD |
971 | return; |
972 | } | |
973 | /* Only --compare-dest gets here. */ | |
974 | if (unchanged_attrs(file, &st)) { | |
ee1d11c4 WD |
975 | itemize(file, ndx, statret, &st, |
976 | ITEM_NO_DEST_AND_NO_UPDATE, NULL); | |
a1d23b53 | 977 | return; |
06a1dbad | 978 | } |
2f03f956 AT |
979 | } |
980 | ||
89f7eff3 | 981 | prepare_to_open: |
9d954dca WD |
982 | if (partialptr) { |
983 | st = partial_st; | |
984 | fnamecmp = partialptr; | |
985 | fnamecmp_type = FNAMECMP_PARTIAL_DIR; | |
986 | statret = 0; | |
987 | } | |
988 | ||
33ab4ad8 | 989 | if (dry_run || read_batch || whole_file) |
3841a04e | 990 | goto notify_others; |
2f03f956 | 991 | |
8e85be0a WD |
992 | if (fuzzy_basis) { |
993 | int j = flist_find(fuzzy_dirlist, file); | |
994 | if (j >= 0) /* don't use changing file as future fuzzy basis */ | |
995 | fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY; | |
996 | } | |
997 | ||
2cda2560 | 998 | /* open the file */ |
8c9fd200 | 999 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
1000 | |
1001 | if (fd == -1) { | |
d62bcc17 WD |
1002 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
1003 | full_fname(fnamecmp)); | |
cd6aa5b5 | 1004 | pretend_missing: |
60be6acf | 1005 | /* pretend the file didn't exist */ |
ee1d11c4 | 1006 | if (preserve_hard_links && hard_link_check(file, ndx, HL_SKIP)) |
6dff5992 | 1007 | return; |
41cfde6b WD |
1008 | statret = -1; |
1009 | goto notify_others; | |
2f03f956 AT |
1010 | } |
1011 | ||
cd6aa5b5 WD |
1012 | if (inplace && make_backups) { |
1013 | if (!(backupptr = get_backup_name(fname))) { | |
1014 | close(fd); | |
1015 | return; | |
1016 | } | |
7842418b | 1017 | if (!(back_file = make_file(fname, NULL, NO_FILTERS))) { |
cd6aa5b5 WD |
1018 | close(fd); |
1019 | goto pretend_missing; | |
1020 | } | |
1021 | if (robust_unlink(backupptr) && errno != ENOENT) { | |
1022 | rsyserr(FERROR, errno, "unlink %s", | |
1023 | full_fname(backupptr)); | |
1024 | free(back_file); | |
1025 | close(fd); | |
1026 | return; | |
1027 | } | |
1028 | if ((f_copy = do_open(backupptr, | |
1029 | O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) { | |
1030 | rsyserr(FERROR, errno, "open %s", | |
1031 | full_fname(backupptr)); | |
1032 | free(back_file); | |
1033 | close(fd); | |
1034 | return; | |
1035 | } | |
41cfde6b | 1036 | fnamecmp_type = FNAMECMP_BACKUP; |
cd6aa5b5 WD |
1037 | } |
1038 | ||
dfd5ba6a | 1039 | if (verbose > 3) { |
ecc81fce WD |
1040 | rprintf(FINFO, "gen mapped %s of size %.0f\n", |
1041 | safe_fname(fnamecmp), (double)st.st_size); | |
dfd5ba6a | 1042 | } |
2f03f956 | 1043 | |
2f03f956 | 1044 | if (verbose > 2) |
0492fdfb | 1045 | rprintf(FINFO, "generating and sending sums for %d\n", ndx); |
2f03f956 | 1046 | |
41cfde6b | 1047 | notify_others: |
0492fdfb | 1048 | write_int(f_out, ndx); |
6c3862fa | 1049 | if (itemizing) { |
ee1d11c4 | 1050 | int iflags = ITEM_TRANSFER; |
8237f930 | 1051 | if (always_checksum) |
a1d23b53 | 1052 | iflags |= ITEM_REPORT_CHECKSUM; |
352963dd | 1053 | if (fnamecmp_type != FNAMECMP_FNAME) |
a1d23b53 | 1054 | iflags |= ITEM_USING_ALT_BASIS; |
ee1d11c4 | 1055 | itemize(file, -1, statret, &st, iflags, NULL); |
e3bcd893 | 1056 | } |
8e85be0a | 1057 | if (f_out_name >= 0) { |
41cfde6b | 1058 | write_byte(f_out_name, fnamecmp_type); |
8e85be0a | 1059 | if (fnamecmp_type == FNAMECMP_FUZZY) { |
46e99b09 WD |
1060 | write_vstring(f_out_name, fuzzy_file->basename, |
1061 | strlen(fuzzy_file->basename)); | |
8e85be0a WD |
1062 | } |
1063 | } | |
cd6aa5b5 | 1064 | |
ee1d11c4 WD |
1065 | if (dry_run) { |
1066 | if (preserve_hard_links && file->link_u.links) | |
1067 | hard_link_cluster(file, ndx, itemizing, code); | |
1068 | return; | |
1069 | } | |
1070 | if (read_batch) | |
41cfde6b WD |
1071 | return; |
1072 | ||
33ab4ad8 | 1073 | if (statret != 0 || whole_file) { |
e86ae6bc WD |
1074 | write_sum_head(f_out, NULL); |
1075 | return; | |
1076 | } | |
1077 | ||
1078 | generate_and_send_sums(fd, st.st_size, f_out, f_copy); | |
1079 | ||
1080 | if (f_copy >= 0) { | |
1081 | close(f_copy); | |
1082 | set_perms(backupptr, back_file, NULL, 0); | |
1083 | if (verbose > 1) { | |
1084 | rprintf(FINFO, "backed up %s to %s\n", | |
1085 | safe_fname(fname), safe_fname(backupptr)); | |
41cfde6b | 1086 | } |
e86ae6bc WD |
1087 | free(back_file); |
1088 | } | |
41cfde6b | 1089 | |
e86ae6bc | 1090 | close(fd); |
2f03f956 AT |
1091 | } |
1092 | ||
1093 | ||
41cfde6b WD |
1094 | void generate_files(int f_out, struct file_list *flist, char *local_name, |
1095 | int f_out_name) | |
2f03f956 | 1096 | { |
ee1d11c4 | 1097 | int i, lull_mod; |
968c8030 | 1098 | char fbuf[MAXPATHLEN]; |
7433d73a WD |
1099 | int itemizing, maybe_PERMS_REPORT; |
1100 | enum logcode code; | |
3ea9bbd6 WD |
1101 | int need_retouch_dir_times = preserve_times && !omit_dir_times; |
1102 | int need_retouch_dir_perms = 0; | |
0492fdfb WD |
1103 | int save_only_existing = only_existing; |
1104 | int save_opt_ignore_existing = opt_ignore_existing; | |
ee1d11c4 WD |
1105 | |
1106 | allowed_lull = read_batch ? 0 : (io_timeout + 1) / 2; | |
1107 | lull_mod = allowed_lull * 5; | |
7433d73a WD |
1108 | |
1109 | if (protocol_version >= 29) { | |
1110 | itemizing = 1; | |
1111 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1112 | code = daemon_log_format_has_i ? 0 : FLOG; | |
1113 | } else if (am_daemon) { | |
1114 | itemizing = daemon_log_format_has_i && !dry_run; | |
1115 | maybe_PERMS_REPORT = PERMS_REPORT; | |
1116 | code = itemizing || dry_run ? FCLIENT : FINFO; | |
1117 | } else if (!am_server) { | |
1118 | itemizing = log_format_has_i; | |
1119 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1120 | code = itemizing ? 0 : FINFO; | |
1121 | } else { | |
1122 | itemizing = 0; | |
1123 | maybe_PERMS_REPORT = PERMS_REPORT; | |
1124 | code = FINFO; | |
1125 | } | |
2f03f956 | 1126 | |
45e08edb WD |
1127 | if (verbose > 2) { |
1128 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
1129 | (long)getpid(), flist->count); | |
1130 | } | |
2f03f956 | 1131 | |
59faec8b | 1132 | if (delete_before && !local_name && flist->count > 0) |
ee1d11c4 | 1133 | do_delete_pass(flist); |
59faec8b | 1134 | |
33ab4ad8 WD |
1135 | if (whole_file < 0) |
1136 | whole_file = 0; | |
3e7053ac | 1137 | if (verbose >= 2) { |
1b1fef20 | 1138 | rprintf(FINFO, "delta-transmission %s\n", |
33ab4ad8 | 1139 | whole_file |
1b1fef20 WD |
1140 | ? "disabled for local transfer or --whole-file" |
1141 | : "enabled"); | |
3e7053ac | 1142 | } |
2cda2560 | 1143 | |
9ac2395b | 1144 | if (protocol_version < 29) |
7433d73a | 1145 | ignore_timeout = 1; |
a57873b7 | 1146 | |
2f03f956 AT |
1147 | for (i = 0; i < flist->count; i++) { |
1148 | struct file_struct *file = flist->files[i]; | |
2f03f956 | 1149 | |
dfd5ba6a WD |
1150 | if (!file->basename) |
1151 | continue; | |
0492fdfb | 1152 | |
1f7e29b9 WD |
1153 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
1154 | file, i, itemizing, maybe_PERMS_REPORT, code, | |
1155 | f_out, f_out_name); | |
1156 | ||
0492fdfb WD |
1157 | /* We need to ensure that any dirs we create have writeable |
1158 | * permissions during the time we are putting files within | |
1159 | * them. This is then fixed after the transfer is done. */ | |
dfd5ba6a | 1160 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
1f7e29b9 WD |
1161 | int mode = file->mode | S_IWUSR; /* user write */ |
1162 | char *fname = local_name ? local_name : fbuf; | |
1163 | if (do_chmod(fname, mode & CHMOD_BITS) < 0) { | |
1164 | rsyserr(FERROR, errno, | |
1165 | "failed to modify permissions on %s", | |
1166 | full_fname(fname)); | |
1167 | } | |
3ea9bbd6 | 1168 | need_retouch_dir_perms = 1; |
2f03f956 AT |
1169 | } |
1170 | ||
ee1d11c4 WD |
1171 | if (preserve_hard_links) |
1172 | check_for_finished_hlinks(itemizing, code); | |
9ac2395b | 1173 | |
18a11cfd | 1174 | if (allowed_lull && !(i % lull_mod)) |
ee1d11c4 | 1175 | maybe_send_keepalive(); |
2f03f956 | 1176 | } |
ee1d11c4 | 1177 | recv_generator(NULL, NULL, 0, 0, 0, code, -1, -1); |
c93fad5e | 1178 | if (delete_during) |
ee1d11c4 | 1179 | delete_in_dir(NULL, NULL, NULL); |
2f03f956 AT |
1180 | |
1181 | phase++; | |
1182 | csum_length = SUM_LENGTH; | |
0492fdfb WD |
1183 | only_existing = max_size = opt_ignore_existing = 0; |
1184 | update_only = always_checksum = size_only = 0; | |
e1f67417 | 1185 | ignore_times = 1; |
e6bc6f42 | 1186 | make_backups = 0; /* avoid a duplicate backup for inplace processing */ |
2f03f956 | 1187 | |
9ac2395b WD |
1188 | /* We expect to just sit around now, so don't exit on a timeout. |
1189 | * If we really get a timeout then the other process should exit. */ | |
1190 | ignore_timeout = 1; | |
1191 | ||
2f03f956 AT |
1192 | if (verbose > 2) |
1193 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
1194 | ||
7daccb8e | 1195 | write_int(f_out, -1); |
2f03f956 | 1196 | |
bc63ae3f S |
1197 | /* files can cycle through the system more than once |
1198 | * to catch initial checksum errors */ | |
ee1d11c4 | 1199 | while ((i = get_redo_num(itemizing, code)) != -1) { |
bc63ae3f | 1200 | struct file_struct *file = flist->files[i]; |
3fef5364 | 1201 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
ee1d11c4 WD |
1202 | file, i, itemizing, maybe_PERMS_REPORT, code, |
1203 | f_out, f_out_name); | |
bc63ae3f | 1204 | } |
2f03f956 | 1205 | |
bc63ae3f | 1206 | phase++; |
0492fdfb WD |
1207 | only_existing = save_only_existing; |
1208 | opt_ignore_existing = save_opt_ignore_existing; | |
1209 | ||
bc63ae3f S |
1210 | if (verbose > 2) |
1211 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 1212 | |
7daccb8e | 1213 | write_int(f_out, -1); |
6dff5992 | 1214 | |
b0da4b23 | 1215 | /* Read post-redo-phase MSG_DONE and any prior messages. */ |
ee1d11c4 | 1216 | get_redo_num(itemizing, code); |
6dff5992 | 1217 | |
59faec8b | 1218 | if (delete_after && !local_name && flist->count > 0) |
ee1d11c4 | 1219 | do_delete_pass(flist); |
59faec8b | 1220 | |
0492fdfb WD |
1221 | if ((need_retouch_dir_perms || need_retouch_dir_times) |
1222 | && !list_only && !local_name && !dry_run) { | |
18a11cfd | 1223 | int j = 0; |
3ea9bbd6 WD |
1224 | /* Now we need to fix any directory permissions that were |
1225 | * modified during the transfer and/or re-set any tweaked | |
1226 | * modified-time values. */ | |
1227 | for (i = 0; i < flist->count; i++) { | |
1228 | struct file_struct *file = flist->files[i]; | |
1229 | if (!file->basename || !S_ISDIR(file->mode)) | |
1230 | continue; | |
1231 | if (!need_retouch_dir_times && file->mode & S_IWUSR) | |
1232 | continue; | |
1233 | recv_generator(local_name ? local_name : f_name(file), | |
ee1d11c4 WD |
1234 | file, i, itemizing, maybe_PERMS_REPORT, |
1235 | code, -1, -1); | |
18a11cfd | 1236 | if (allowed_lull && !(j++ % lull_mod)) |
ee1d11c4 | 1237 | maybe_send_keepalive(); |
3ea9bbd6 | 1238 | } |
6dff5992 | 1239 | } |
ee1d11c4 | 1240 | recv_generator(NULL, NULL, 0, 0, 0, code, -1, -1); |
6dff5992 | 1241 | |
f75a53e7 WD |
1242 | if (max_delete > 0 && deletion_count > max_delete) { |
1243 | rprintf(FINFO, | |
1244 | "Deletions stopped due to --max-delete limit (%d skipped)\n", | |
1245 | deletion_count - max_delete); | |
1246 | io_error |= IOERR_DEL_LIMIT; | |
1247 | } | |
1248 | ||
6dff5992 WD |
1249 | if (verbose > 2) |
1250 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 1251 | } |