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; | |
beb51aa0 | 28 | extern int do_xfers; |
6c3862fa WD |
29 | extern int log_format_has_i; |
30 | extern int log_format_has_o_or_i; | |
31 | extern int daemon_log_format_has_i; | |
32 | extern int am_root; | |
33 | extern int am_server; | |
34 | extern int am_daemon; | |
083acd49 | 35 | extern int do_progress; |
59faec8b | 36 | extern int recurse; |
2f03f956 | 37 | extern int relative_paths; |
716e73d4 | 38 | extern int keep_dirlinks; |
2f03f956 | 39 | extern int preserve_links; |
2f03f956 AT |
40 | extern int preserve_devices; |
41 | extern int preserve_hard_links; | |
6744b62d WD |
42 | extern int preserve_perms; |
43 | extern int preserve_uid; | |
44 | extern int preserve_gid; | |
3ea9bbd6 WD |
45 | extern int preserve_times; |
46 | extern int omit_dir_times; | |
59faec8b | 47 | extern int delete_before; |
fa13f396 | 48 | extern int delete_during; |
59faec8b WD |
49 | extern int delete_after; |
50 | extern int module_id; | |
51 | extern int ignore_errors; | |
fe960187 | 52 | extern int remove_sent_files; |
70352269 | 53 | extern int delay_updates; |
2f03f956 | 54 | extern int update_only; |
3d6feada | 55 | extern int opt_ignore_existing; |
cd6aa5b5 WD |
56 | extern int inplace; |
57 | extern int make_backups; | |
2f03f956 AT |
58 | extern int csum_length; |
59 | extern int ignore_times; | |
f83f0548 | 60 | extern int size_only; |
7d1bfaf7 | 61 | extern OFF_T max_size; |
59faec8b | 62 | extern int io_error; |
ac40b747 | 63 | extern int allowed_lull; |
ee1d11c4 | 64 | extern int sock_f_out; |
9ac2395b | 65 | extern int ignore_timeout; |
d04e9c51 | 66 | extern int protocol_version; |
8e85be0a | 67 | extern int fuzzy_basis; |
2f03f956 | 68 | extern int always_checksum; |
a7260c40 | 69 | extern char *partial_dir; |
b7e8628c | 70 | extern char *basis_dir[]; |
2be2fb3e | 71 | extern int compare_dest; |
967866d4 | 72 | extern int copy_dest; |
59c95e42 | 73 | extern int link_dest; |
5774786f | 74 | extern int whole_file; |
5774786f | 75 | extern int list_only; |
b9f592fb | 76 | extern int read_batch; |
5774786f WD |
77 | extern int only_existing; |
78 | extern int orig_umask; | |
79 | extern int safe_symlinks; | |
a255c592 | 80 | extern long block_size; /* "long" because popt can't set an int32. */ |
59faec8b WD |
81 | extern int max_delete; |
82 | extern int force_delete; | |
83 | extern int one_file_system; | |
6c3862fa | 84 | extern struct stats stats; |
59faec8b WD |
85 | extern dev_t filesystem_dev; |
86 | extern char *backup_dir; | |
87 | extern char *backup_suffix; | |
88 | extern int backup_suffix_len; | |
ee1d11c4 | 89 | extern struct file_list *the_file_list; |
7842418b | 90 | extern struct filter_list_struct server_filter_list; |
97f9dcae | 91 | |
59faec8b WD |
92 | static int deletion_count = 0; /* used to implement --max-delete */ |
93 | ||
94 | ||
95 | static int is_backup_file(char *fn) | |
96 | { | |
97 | int k = strlen(fn) - backup_suffix_len; | |
98 | return k > 0 && strcmp(fn+k, backup_suffix) == 0; | |
99 | } | |
100 | ||
101 | ||
102 | /* Delete a file or directory. If DEL_FORCE_RECURSE is set in the flags, or if | |
103 | * force_delete is set, this will delete recursively as long as DEL_NO_RECURSE | |
104 | * is not set in the flags. */ | |
105 | static int delete_item(char *fname, int mode, int flags) | |
106 | { | |
107 | struct file_list *dirlist; | |
108 | char buf[MAXPATHLEN]; | |
109 | int j, dlen, zap_dir, ok; | |
110 | void *save_filters; | |
111 | ||
59faec8b | 112 | if (!S_ISDIR(mode)) { |
f75a53e7 WD |
113 | if (max_delete && ++deletion_count > max_delete) |
114 | return 0; | |
59faec8b WD |
115 | if (make_backups && (backup_dir || !is_backup_file(fname))) |
116 | ok = make_backup(fname); | |
117 | else | |
118 | ok = robust_unlink(fname) == 0; | |
119 | if (ok) { | |
120 | if (!(flags & DEL_TERSE)) | |
121 | log_delete(fname, mode); | |
59faec8b WD |
122 | return 0; |
123 | } | |
f75a53e7 WD |
124 | if (errno == ENOENT) { |
125 | deletion_count--; | |
59faec8b | 126 | return 0; |
f75a53e7 | 127 | } |
59faec8b WD |
128 | rsyserr(FERROR, errno, "delete_file: unlink %s failed", |
129 | full_fname(fname)); | |
130 | return -1; | |
131 | } | |
132 | ||
133 | zap_dir = (flags & DEL_FORCE_RECURSE || (force_delete && recurse)) | |
134 | && !(flags & DEL_NO_RECURSE); | |
f75a53e7 WD |
135 | if ((max_delete && ++deletion_count > max_delete) |
136 | || (dry_run && zap_dir)) { | |
59faec8b WD |
137 | ok = 0; |
138 | errno = ENOTEMPTY; | |
139 | } else if (make_backups && !backup_dir && !is_backup_file(fname) | |
140 | && !(flags & DEL_FORCE_RECURSE)) | |
141 | ok = make_backup(fname); | |
142 | else | |
143 | ok = do_rmdir(fname) == 0; | |
144 | if (ok) { | |
145 | if (!(flags & DEL_TERSE)) | |
146 | log_delete(fname, mode); | |
59faec8b WD |
147 | return 0; |
148 | } | |
f75a53e7 WD |
149 | if (errno == ENOENT) { |
150 | deletion_count--; | |
59faec8b | 151 | return 0; |
f75a53e7 | 152 | } |
26beb786 | 153 | if (!zap_dir) { |
59faec8b WD |
154 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", |
155 | full_fname(fname)); | |
156 | return -1; | |
157 | } | |
f62eaa24 | 158 | flags |= DEL_FORCE_RECURSE; /* mark subdir dels as not "in the way" */ |
f75a53e7 | 159 | deletion_count--; |
59faec8b WD |
160 | |
161 | dlen = strlcpy(buf, fname, MAXPATHLEN); | |
162 | save_filters = push_local_filters(buf, dlen); | |
163 | ||
164 | dirlist = get_dirlist(buf, dlen, 0); | |
165 | for (j = dirlist->count; j--; ) { | |
166 | struct file_struct *fp = dirlist->files[j]; | |
167 | ||
168 | if (fp->flags & FLAG_MOUNT_POINT) | |
169 | continue; | |
170 | ||
171 | f_name_to(fp, buf); | |
26beb786 | 172 | delete_item(buf, fp->mode, flags & ~DEL_TERSE); |
59faec8b WD |
173 | } |
174 | flist_free(dirlist); | |
175 | ||
176 | pop_local_filters(save_filters); | |
177 | ||
f75a53e7 WD |
178 | if (max_delete && ++deletion_count > max_delete) |
179 | return 0; | |
59faec8b WD |
180 | |
181 | if (do_rmdir(fname) == 0) { | |
182 | if (!(flags & DEL_TERSE)) | |
183 | log_delete(fname, mode); | |
4d474ad5 | 184 | } else if (errno != ENOTEMPTY && errno != EEXIST && errno != ENOENT) { |
59faec8b WD |
185 | rsyserr(FERROR, errno, "delete_file: rmdir %s failed", |
186 | full_fname(fname)); | |
187 | return -1; | |
188 | } | |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
193 | ||
194 | /* This function is used to implement per-directory deletion, and is used by | |
195 | * all the --delete-WHEN options. Note that the fbuf pointer must point to a | |
196 | * MAXPATHLEN buffer with the name of the directory in it (the functions we | |
197 | * call will append names onto the end, but the old dir value will be restored | |
198 | * on exit). */ | |
199 | static void delete_in_dir(struct file_list *flist, char *fbuf, | |
ee1d11c4 | 200 | struct file_struct *file) |
59faec8b WD |
201 | { |
202 | static int min_depth = MAXPATHLEN, cur_depth = -1; | |
203 | static void *filt_array[MAXPATHLEN/2+1]; | |
717b0430 | 204 | static int already_warned = 0; |
59faec8b WD |
205 | struct file_list *dirlist; |
206 | char delbuf[MAXPATHLEN]; | |
207 | STRUCT_STAT st; | |
468d7668 | 208 | int dlen, i; |
59faec8b WD |
209 | |
210 | if (!flist) { | |
211 | while (cur_depth >= min_depth) | |
212 | pop_local_filters(filt_array[cur_depth--]); | |
213 | min_depth = MAXPATHLEN; | |
214 | cur_depth = -1; | |
215 | return; | |
216 | } | |
217 | ||
218 | if (verbose > 2) | |
219 | rprintf(FINFO, "delete_in_dir(%s)\n", safe_fname(fbuf)); | |
220 | ||
221 | if (allowed_lull) | |
ee1d11c4 | 222 | maybe_send_keepalive(); |
59faec8b WD |
223 | |
224 | if (file->dir.depth >= MAXPATHLEN/2+1) | |
225 | return; /* Impossible... */ | |
226 | ||
59faec8b | 227 | if (io_error && !(lp_ignore_errors(module_id) || ignore_errors)) { |
717b0430 | 228 | if (already_warned) |
f75a53e7 | 229 | return; |
59faec8b WD |
230 | rprintf(FINFO, |
231 | "IO error encountered -- skipping file deletion\n"); | |
717b0430 | 232 | already_warned = 1; |
59faec8b WD |
233 | return; |
234 | } | |
235 | ||
236 | while (cur_depth >= file->dir.depth && cur_depth >= min_depth) | |
237 | pop_local_filters(filt_array[cur_depth--]); | |
238 | cur_depth = file->dir.depth; | |
239 | if (min_depth > cur_depth) | |
240 | min_depth = cur_depth; | |
241 | dlen = strlen(fbuf); | |
242 | filt_array[cur_depth] = push_local_filters(fbuf, dlen); | |
243 | ||
244 | if (link_stat(fbuf, &st, keep_dirlinks) < 0) | |
245 | return; | |
246 | ||
468d7668 WD |
247 | if (one_file_system) { |
248 | if (file->flags & FLAG_TOP_DIR) | |
249 | filesystem_dev = st.st_dev; | |
250 | else if (filesystem_dev != st.st_dev) | |
251 | return; | |
252 | } | |
59faec8b WD |
253 | |
254 | dirlist = get_dirlist(fbuf, dlen, 0); | |
255 | ||
256 | /* If an item in dirlist is not found in flist, delete it | |
257 | * from the filesystem. */ | |
258 | for (i = dirlist->count; i--; ) { | |
f3ab64d3 | 259 | struct file_struct *fp = dirlist->files[i]; |
6e8b9f13 | 260 | if (!fp->basename || fp->flags & FLAG_MOUNT_POINT) |
59faec8b | 261 | continue; |
468d7668 | 262 | if (flist_find(flist, fp) < 0) { |
f3ab64d3 WD |
263 | int mode = fp->mode; |
264 | f_name_to(fp, delbuf); | |
26beb786 | 265 | delete_item(delbuf, mode, DEL_FORCE_RECURSE); |
468d7668 | 266 | } |
59faec8b WD |
267 | } |
268 | ||
269 | flist_free(dirlist); | |
270 | } | |
271 | ||
272 | /* This deletes any files on the receiving side that are not present on the | |
273 | * sending side. This is used by --delete-before and --delete-after. */ | |
ee1d11c4 | 274 | static void do_delete_pass(struct file_list *flist) |
59faec8b WD |
275 | { |
276 | char fbuf[MAXPATHLEN]; | |
277 | int j; | |
278 | ||
b225b089 WD |
279 | if (dry_run > 1 /* destination doesn't exist yet */ |
280 | || list_only) | |
f75a53e7 WD |
281 | return; |
282 | ||
59faec8b WD |
283 | for (j = 0; j < flist->count; j++) { |
284 | struct file_struct *file = flist->files[j]; | |
285 | ||
286 | if (!(file->flags & FLAG_DEL_HERE)) | |
287 | continue; | |
288 | ||
289 | f_name_to(file, fbuf); | |
290 | if (verbose > 1 && file->flags & FLAG_TOP_DIR) | |
291 | rprintf(FINFO, "deleting in %s\n", safe_fname(fbuf)); | |
292 | ||
ee1d11c4 | 293 | delete_in_dir(flist, fbuf, file); |
59faec8b | 294 | } |
a06e2b7c WD |
295 | if (do_progress && !am_server) |
296 | rprintf(FINFO, " \r"); | |
59faec8b WD |
297 | } |
298 | ||
b7e8628c | 299 | static int unchanged_attrs(struct file_struct *file, STRUCT_STAT *st) |
2f03f956 | 300 | { |
b7e8628c WD |
301 | if (preserve_perms |
302 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) | |
84acca07 | 303 | return 0; |
bb24028f | 304 | |
b7e8628c WD |
305 | if (am_root && preserve_uid && st->st_uid != file->uid) |
306 | return 0; | |
bb24028f | 307 | |
b7e8628c WD |
308 | if (preserve_gid && file->gid != GID_NONE && st->st_gid != file->gid) |
309 | return 0; | |
310 | ||
311 | return 1; | |
312 | } | |
313 | ||
06a1dbad | 314 | |
ee1d11c4 | 315 | void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st, |
ef20efcb | 316 | int32 iflags, uchar fnamecmp_type, char *xname) |
06a1dbad | 317 | { |
e86ae6bc | 318 | if (statret == 0) { |
c557eb8c WD |
319 | if (S_ISREG(file->mode) && file->length != st->st_size) |
320 | iflags |= ITEM_REPORT_SIZE; | |
a1d23b53 | 321 | if (!(iflags & ITEM_NO_DEST_AND_NO_UPDATE)) { |
88b218fa WD |
322 | int keep_time = !preserve_times ? 0 |
323 | : S_ISDIR(file->mode) ? !omit_dir_times | |
324 | : !S_ISLNK(file->mode); | |
325 | ||
ee1d11c4 | 326 | if ((iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !keep_time) |
88b218fa WD |
327 | || (keep_time && file->modtime != st->st_mtime)) |
328 | iflags |= ITEM_REPORT_TIME; | |
329 | if (preserve_perms && file->mode != st->st_mode) | |
330 | iflags |= ITEM_REPORT_PERMS; | |
331 | if (preserve_uid && am_root && file->uid != st->st_uid) | |
332 | iflags |= ITEM_REPORT_OWNER; | |
333 | if (preserve_gid && file->gid != GID_NONE | |
334 | && st->st_gid != file->gid) | |
335 | iflags |= ITEM_REPORT_GROUP; | |
336 | } | |
ef20efcb | 337 | } else |
ee1d11c4 | 338 | iflags |= ITEM_IS_NEW; |
c557eb8c | 339 | |
a1d23b53 | 340 | iflags &= 0xffff; |
ee1d11c4 | 341 | if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1 |
ef20efcb | 342 | || (xname && *xname)) && !read_batch) { |
6c3862fa WD |
343 | if (protocol_version >= 29) { |
344 | if (ndx >= 0) | |
ee1d11c4 WD |
345 | write_int(sock_f_out, ndx); |
346 | write_shortint(sock_f_out, iflags); | |
ef20efcb WD |
347 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
348 | write_byte(sock_f_out, fnamecmp_type); | |
349 | if (iflags & ITEM_XNAME_FOLLOWS) | |
350 | write_vstring(sock_f_out, xname, strlen(xname)); | |
6c3862fa | 351 | } else if (ndx >= 0) |
ef20efcb | 352 | log_item(file, &stats, iflags, xname); |
06a1dbad WD |
353 | } |
354 | } | |
355 | ||
356 | ||
b7e8628c WD |
357 | /* Perform our quick-check heuristic for determining if a file is unchanged. */ |
358 | static int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st) | |
359 | { | |
360 | if (st->st_size != file->length) | |
361 | return 0; | |
59c95e42 | 362 | |
2cda2560 | 363 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
364 | of the file time to determine whether to sync */ |
365 | if (always_checksum && S_ISREG(st->st_mode)) { | |
366 | char sum[MD4_SUM_LENGTH]; | |
b7e8628c | 367 | file_checksum(fn, sum, st->st_size); |
728d0922 | 368 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
84acca07 | 369 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
370 | } |
371 | ||
cc1e997d | 372 | if (size_only) |
84acca07 | 373 | return 1; |
2f03f956 | 374 | |
cc1e997d | 375 | if (ignore_times) |
84acca07 | 376 | return 0; |
cc1e997d | 377 | |
84acca07 | 378 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
379 | } |
380 | ||
381 | ||
ec8290c8 | 382 | /* |
195bd906 | 383 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 384 | * calculating dynamic block and checksum sizes. |
195bd906 | 385 | * |
ec8290c8 | 386 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
387 | * function to encapsulate the logic. |
388 | * | |
389 | * The block size is a rounded square root of file length. | |
390 | * | |
391 | * The checksum size is determined according to: | |
ed7e7955 | 392 | * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len) |
195bd906 S |
393 | * provided by Donovan Baarda which gives a probability of rsync |
394 | * algorithm corrupting data and falling back using the whole md4 | |
395 | * checksums. | |
396 | * | |
397 | * This might be made one of several selectable heuristics. | |
398 | */ | |
1490812a | 399 | static void sum_sizes_sqroot(struct sum_struct *sum, int64 len) |
195bd906 | 400 | { |
a255c592 | 401 | int32 blength; |
da9d12f5 | 402 | int s2length; |
195bd906 | 403 | |
a255c592 | 404 | if (block_size) |
195bd906 | 405 | blength = block_size; |
a255c592 | 406 | else if (len <= BLOCK_SIZE * BLOCK_SIZE) |
195bd906 | 407 | blength = BLOCK_SIZE; |
a255c592 WD |
408 | else { |
409 | int32 c; | |
1490812a | 410 | int64 l; |
eae7165c WD |
411 | int cnt; |
412 | for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {} | |
413 | if (cnt >= 31 || c >= MAX_BLOCK_SIZE) | |
414 | blength = MAX_BLOCK_SIZE; | |
415 | else { | |
416 | blength = 0; | |
417 | do { | |
418 | blength |= c; | |
1490812a | 419 | if (len < (int64)blength * blength) |
eae7165c WD |
420 | blength &= ~c; |
421 | c >>= 1; | |
422 | } while (c >= 8); /* round to multiple of 8 */ | |
423 | blength = MAX(blength, BLOCK_SIZE); | |
195bd906 | 424 | } |
195bd906 S |
425 | } |
426 | ||
d04e9c51 | 427 | if (protocol_version < 27) { |
195bd906 S |
428 | s2length = csum_length; |
429 | } else if (csum_length == SUM_LENGTH) { | |
430 | s2length = SUM_LENGTH; | |
431 | } else { | |
a255c592 | 432 | int32 c; |
1490812a | 433 | int64 l; |
da9d12f5 | 434 | int b = BLOCKSUM_BIAS; |
a255c592 WD |
435 | for (l = len; l >>= 1; b += 2) {} |
436 | for (c = blength; c >>= 1 && b; b--) {} | |
437 | /* add a bit, subtract rollsum, round up. */ | |
438 | s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */ | |
195bd906 S |
439 | s2length = MAX(s2length, csum_length); |
440 | s2length = MIN(s2length, SUM_LENGTH); | |
441 | } | |
442 | ||
443 | sum->flength = len; | |
444 | sum->blength = blength; | |
445 | sum->s2length = s2length; | |
446 | sum->count = (len + (blength - 1)) / blength; | |
447 | sum->remainder = (len % blength); | |
448 | ||
449 | if (sum->count && verbose > 2) { | |
a255c592 WD |
450 | rprintf(FINFO, |
451 | "count=%.0f rem=%ld blength=%ld s2length=%d flength=%.0f\n", | |
452 | (double)sum->count, (long)sum->remainder, (long)sum->blength, | |
da9d12f5 | 453 | sum->s2length, (double)sum->flength); |
195bd906 S |
454 | } |
455 | } | |
80605142 | 456 | |
bceec82f | 457 | |
80605142 WD |
458 | /* |
459 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 460 | * |
80605142 WD |
461 | * Generate approximately one checksum every block_len bytes. |
462 | */ | |
cd6aa5b5 | 463 | static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy) |
2f03f956 | 464 | { |
a1cbe76e | 465 | int32 i; |
6e45e1dd | 466 | struct map_struct *mapbuf; |
80605142 | 467 | struct sum_struct sum; |
2f03f956 AT |
468 | OFF_T offset = 0; |
469 | ||
423dba8e | 470 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 471 | |
6e45e1dd | 472 | if (len > 0) |
96d910c7 | 473 | mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength); |
6e45e1dd WD |
474 | else |
475 | mapbuf = NULL; | |
476 | ||
fc0257c9 | 477 | write_sum_head(f_out, &sum); |
2f03f956 | 478 | |
80605142 | 479 | for (i = 0; i < sum.count; i++) { |
a255c592 | 480 | int32 n1 = (int32)MIN(len, (OFF_T)sum.blength); |
6e45e1dd | 481 | char *map = map_ptr(mapbuf, offset, n1); |
80605142 WD |
482 | uint32 sum1 = get_checksum1(map, n1); |
483 | char sum2[SUM_LENGTH]; | |
2f03f956 | 484 | |
cd6aa5b5 WD |
485 | if (f_copy >= 0) |
486 | full_write(f_copy, map, n1); | |
487 | ||
80605142 | 488 | get_checksum2(map, n1, sum2); |
2f03f956 | 489 | |
80605142 | 490 | if (verbose > 3) { |
e66dfd18 | 491 | rprintf(FINFO, |
a255c592 WD |
492 | "chunk[%.0f] offset=%.0f len=%ld sum1=%08lx\n", |
493 | (double)i, (double)offset, (long)n1, | |
0e36d9da | 494 | (unsigned long)sum1); |
80605142 WD |
495 | } |
496 | write_int(f_out, sum1); | |
fc0257c9 | 497 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
498 | len -= n1; |
499 | offset += n1; | |
500 | } | |
6e45e1dd WD |
501 | |
502 | if (mapbuf) | |
503 | unmap_file(mapbuf); | |
2f03f956 AT |
504 | } |
505 | ||
06a1dbad | 506 | |
8e85be0a WD |
507 | /* Try to find a filename in the same dir as "fname" with a similar name. */ |
508 | static int find_fuzzy(struct file_struct *file, struct file_list *dirlist) | |
509 | { | |
510 | int fname_len, fname_suf_len; | |
511 | const char *fname_suf, *fname = file->basename; | |
f328e0f3 | 512 | uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */ |
8e85be0a WD |
513 | int j, lowest_j = -1; |
514 | ||
515 | fname_len = strlen(fname); | |
516 | fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len); | |
517 | ||
518 | for (j = 0; j < dirlist->count; j++) { | |
519 | struct file_struct *fp = dirlist->files[j]; | |
520 | const char *suf, *name; | |
521 | int len, suf_len; | |
522 | uint32 dist; | |
523 | ||
524 | if (!S_ISREG(fp->mode) || !fp->length | |
525 | || fp->flags & FLAG_NO_FUZZY) | |
526 | continue; | |
527 | ||
528 | name = fp->basename; | |
529 | ||
530 | if (fp->length == file->length | |
531 | && fp->modtime == file->modtime) { | |
532 | if (verbose > 4) { | |
533 | rprintf(FINFO, | |
534 | "fuzzy size/modtime match for %s\n", | |
535 | name); | |
536 | } | |
537 | return j; | |
538 | } | |
539 | ||
540 | len = strlen(name); | |
541 | suf = find_filename_suffix(name, len, &suf_len); | |
542 | ||
543 | dist = fuzzy_distance(name, len, fname, fname_len); | |
544 | /* Add some extra weight to how well the suffixes match. */ | |
545 | dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len) | |
546 | * 10; | |
547 | if (verbose > 4) { | |
548 | rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n", | |
549 | name, (int)(dist>>16), (int)(dist&0xFFFF)); | |
550 | } | |
551 | if (dist <= lowest_dist) { | |
552 | lowest_dist = dist; | |
553 | lowest_j = j; | |
554 | } | |
555 | } | |
556 | ||
557 | return lowest_j; | |
558 | } | |
559 | ||
ee1d11c4 WD |
560 | void check_for_finished_hlinks(int itemizing, enum logcode code) |
561 | { | |
562 | struct file_struct *file; | |
563 | int ndx; | |
564 | ||
565 | while ((ndx = get_hlink_num()) != -1) { | |
566 | if (ndx < 0 || ndx >= the_file_list->count) | |
567 | continue; | |
568 | ||
569 | file = the_file_list->files[ndx]; | |
570 | if (!file->link_u.links) | |
571 | continue; | |
572 | ||
573 | hard_link_cluster(file, ndx, itemizing, code); | |
574 | } | |
575 | } | |
2f03f956 | 576 | |
ed7e7955 WD |
577 | static int phase = 0; |
578 | ||
ee1d11c4 | 579 | /* Acts on the_file_list->file's ndx'th item, whose name is fname. If a dir, |
0492fdfb WD |
580 | * make sure it exists, and has the right permissions/timestamp info. For |
581 | * all other non-regular files (symlinks, etc.) we create them here. For | |
582 | * regular files that have changed, we try to find a basis file and then | |
583 | * start sending checksums. | |
ef1aa910 | 584 | * |
0492fdfb WD |
585 | * Note that f_out is set to -1 when doing final directory-permission and |
586 | * modification-time repair. */ | |
ee1d11c4 | 587 | static void recv_generator(char *fname, struct file_struct *file, int ndx, |
7433d73a | 588 | int itemizing, int maybe_PERMS_REPORT, |
ef20efcb | 589 | enum logcode code, int f_out) |
2cda2560 | 590 | { |
8174bc35 | 591 | static int missing_below = -1, excluded_below = -1; |
7e9059d6 | 592 | static char *fuzzy_dirname = ""; |
8e85be0a WD |
593 | static struct file_list *fuzzy_dirlist = NULL; |
594 | struct file_struct *fuzzy_file = NULL; | |
41cfde6b | 595 | int fd = -1, f_copy = -1; |
1f1d368a | 596 | STRUCT_STAT st, real_st, partial_st; |
41cfde6b | 597 | struct file_struct *back_file = NULL; |
1f1d368a | 598 | int statret, real_ret, stat_errno; |
41cfde6b | 599 | char *fnamecmp, *partialptr, *backupptr = NULL; |
375a4556 | 600 | char fnamecmpbuf[MAXPATHLEN]; |
41cfde6b | 601 | uchar fnamecmp_type; |
f7632fc6 | 602 | |
dfd5ba6a WD |
603 | if (list_only) |
604 | return; | |
2f03f956 | 605 | |
8e85be0a WD |
606 | if (!fname) { |
607 | if (fuzzy_dirlist) { | |
608 | flist_free(fuzzy_dirlist); | |
609 | fuzzy_dirlist = NULL; | |
7e9059d6 | 610 | fuzzy_dirname = ""; |
8e85be0a WD |
611 | } |
612 | if (missing_below >= 0) { | |
613 | dry_run--; | |
614 | missing_below = -1; | |
615 | } | |
616 | return; | |
617 | } | |
618 | ||
4875d6b6 WD |
619 | if (verbose > 2) { |
620 | rprintf(FINFO, "recv_generator(%s,%d)\n", | |
621 | safe_fname(fname), ndx); | |
622 | } | |
2f03f956 | 623 | |
8174bc35 WD |
624 | if (server_filter_list.head) { |
625 | if (excluded_below >= 0) { | |
626 | if (file->dir.depth > excluded_below) | |
627 | goto skipping; | |
628 | excluded_below = -1; | |
629 | } | |
630 | if (check_filter(&server_filter_list, fname, | |
631 | S_ISDIR(file->mode)) < 0) { | |
632 | if (S_ISDIR(file->mode)) | |
633 | excluded_below = file->dir.depth; | |
634 | skipping: | |
635 | if (verbose) { | |
636 | rprintf(FINFO, | |
637 | "skipping server-excluded file \"%s\"\n", | |
638 | safe_fname(fname)); | |
639 | } | |
640 | return; | |
3e35c34b | 641 | } |
3e35c34b | 642 | } |
97f9dcae | 643 | |
8e85be0a | 644 | if (missing_below >= 0 && file->dir.depth <= missing_below) { |
df337831 WD |
645 | dry_run--; |
646 | missing_below = -1; | |
647 | } | |
73f7af0e WD |
648 | if (dry_run > 1) { |
649 | statret = -1; | |
650 | stat_errno = ENOENT; | |
651 | } else { | |
8e85be0a WD |
652 | if (fuzzy_basis && S_ISREG(file->mode)) { |
653 | char *dn = file->dirname ? file->dirname : "."; | |
ccc51c83 WD |
654 | if (fuzzy_dirname != dn |
655 | && strcmp(fuzzy_dirname, dn) != 0) { | |
8e85be0a WD |
656 | if (fuzzy_dirlist) |
657 | flist_free(fuzzy_dirlist); | |
ccc51c83 | 658 | fuzzy_dirlist = get_dirlist(dn, -1, 1); |
8e85be0a | 659 | } |
ccc51c83 | 660 | fuzzy_dirname = dn; |
8e85be0a WD |
661 | } |
662 | ||
73f7af0e WD |
663 | statret = link_stat(fname, &st, |
664 | keep_dirlinks && S_ISDIR(file->mode)); | |
665 | stat_errno = errno; | |
666 | } | |
63787382 | 667 | |
a7260c40 | 668 | if (only_existing && statret == -1 && stat_errno == ENOENT) { |
1347d512 | 669 | /* we only want to update existing files */ |
ecc81fce | 670 | if (verbose > 1) { |
15164c0a WD |
671 | rprintf(FINFO, "not creating new %s \"%s\"\n", |
672 | S_ISDIR(file->mode) ? "directory" : "file", | |
ecc81fce WD |
673 | safe_fname(fname)); |
674 | } | |
1347d512 AT |
675 | return; |
676 | } | |
677 | ||
d9b4d267 WD |
678 | if (statret == 0 && !preserve_perms |
679 | && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) { | |
4df9f368 | 680 | /* if the file exists already and we aren't perserving |
2cda2560 WD |
681 | * permissions then act as though the remote end sent |
682 | * us the file permissions we already have */ | |
67e78a82 WD |
683 | file->mode = (file->mode & ~CHMOD_BITS) |
684 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
685 | } |
686 | ||
2f03f956 | 687 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
688 | /* The file to be received is a directory, so we need |
689 | * to prepare appropriately. If there is already a | |
690 | * file of that name and it is *not* a directory, then | |
691 | * we need to delete it. If it doesn't exist, then | |
027428eb | 692 | * (perhaps recursively) create it. */ |
2f03f956 | 693 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
1f1d368a WD |
694 | if (delete_item(fname, st.st_mode, DEL_TERSE) < 0) |
695 | return; | |
2f03f956 AT |
696 | statret = -1; |
697 | } | |
df337831 WD |
698 | if (dry_run && statret != 0 && missing_below < 0) { |
699 | missing_below = file->dir.depth; | |
700 | dry_run++; | |
701 | } | |
ee1d11c4 WD |
702 | if (itemizing && f_out != -1) { |
703 | itemize(file, ndx, statret, &st, | |
ef20efcb | 704 | statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL); |
ee1d11c4 | 705 | } |
2f03f956 | 706 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { |
027428eb WD |
707 | if (!relative_paths || errno != ENOENT |
708 | || create_directory_path(fname, orig_umask) < 0 | |
709 | || do_mkdir(fname, file->mode) < 0) { | |
d62bcc17 WD |
710 | rsyserr(FERROR, errno, |
711 | "recv_generator: mkdir %s failed", | |
712 | full_fname(fname)); | |
2f03f956 AT |
713 | } |
714 | } | |
716e73d4 | 715 | if (set_perms(fname, file, statret ? NULL : &st, 0) |
6c3862fa WD |
716 | && verbose && code && f_out != -1) |
717 | rprintf(code, "%s/\n", safe_fname(fname)); | |
f75a53e7 | 718 | if (delete_during && f_out != -1 && !phase && dry_run < 2 |
31937d36 | 719 | && (file->flags & FLAG_DEL_HERE)) |
ee1d11c4 | 720 | delete_in_dir(the_file_list, fname, file); |
2f03f956 | 721 | return; |
06a1dbad | 722 | } |
6c3862fa | 723 | |
2f03f956 | 724 | if (preserve_links && S_ISLNK(file->mode)) { |
4f5b0756 | 725 | #ifdef SUPPORT_LINKS |
728d0922 | 726 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 727 | if (verbose) { |
2a5d5a8c WD |
728 | if (the_file_list->count == 1) |
729 | fname = f_name(file); | |
4875d6b6 WD |
730 | rprintf(FINFO, |
731 | "ignoring unsafe symlink %s -> \"%s\"\n", | |
732 | full_fname(fname), | |
733 | safe_fname(file->u.link)); | |
2f03f956 AT |
734 | } |
735 | return; | |
736 | } | |
737 | if (statret == 0) { | |
7e38410e WD |
738 | char lnk[MAXPATHLEN]; |
739 | int len; | |
740 | ||
8a8356b7 | 741 | if (!S_ISDIR(st.st_mode) |
7e38410e WD |
742 | && (len = readlink(fname, lnk, MAXPATHLEN-1)) > 0) { |
743 | lnk[len] = 0; | |
85d4d142 MP |
744 | /* A link already pointing to the |
745 | * right place -- no further action | |
746 | * required. */ | |
7e38410e | 747 | if (strcmp(lnk, file->u.link) == 0) { |
6c3862fa | 748 | if (itemizing) { |
ee1d11c4 | 749 | itemize(file, ndx, 0, &st, 0, |
ef20efcb | 750 | 0, NULL); |
c557eb8c | 751 | } |
c41b52c4 | 752 | set_perms(fname, file, &st, |
8a8356b7 | 753 | maybe_PERMS_REPORT); |
2f03f956 AT |
754 | return; |
755 | } | |
2cda2560 | 756 | } |
7e38410e WD |
757 | /* Not the right symlink (or not a symlink), so |
758 | * delete it. */ | |
1f1d368a WD |
759 | if (delete_item(fname, st.st_mode, DEL_TERSE) < 0) |
760 | return; | |
761 | if (!S_ISLNK(st.st_mode)) | |
88b218fa | 762 | statret = -1; |
2f03f956 | 763 | } |
728d0922 | 764 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 | 765 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
ecc81fce | 766 | full_fname(fname), safe_fname(file->u.link)); |
2f03f956 AT |
767 | } else { |
768 | set_perms(fname,file,NULL,0); | |
6c3862fa | 769 | if (itemizing) { |
ee1d11c4 | 770 | itemize(file, ndx, statret, &st, |
ef20efcb | 771 | ITEM_LOCAL_CHANGE, 0, NULL); |
6c3862fa WD |
772 | } |
773 | if (code && verbose) { | |
774 | rprintf(code, "%s -> %s\n", safe_fname(fname), | |
c557eb8c | 775 | safe_fname(file->u.link)); |
2f03f956 | 776 | } |
fe960187 WD |
777 | if (remove_sent_files && !dry_run) { |
778 | char numbuf[4]; | |
779 | SIVAL(numbuf, 0, ndx); | |
780 | send_msg(MSG_SUCCESS, numbuf, 4); | |
781 | } | |
2f03f956 AT |
782 | } |
783 | #endif | |
784 | return; | |
785 | } | |
786 | ||
2f03f956 | 787 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { |
2cda2560 | 788 | if (statret != 0 || |
2f03f956 | 789 | st.st_mode != file->mode || |
3915fd75 | 790 | st.st_rdev != file->u.rdev) { |
1f1d368a WD |
791 | if (delete_item(fname, st.st_mode, DEL_TERSE) < 0) |
792 | return; | |
59faec8b | 793 | if (!IS_DEVICE(st.st_mode)) |
88b218fa | 794 | statret = -1; |
d62bcc17 | 795 | if (verbose > 2) { |
2f03f956 | 796 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
ecc81fce WD |
797 | safe_fname(fname), |
798 | (int)file->mode, (int)file->u.rdev); | |
d62bcc17 | 799 | } |
728d0922 | 800 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
801 | rsyserr(FERROR, errno, "mknod %s failed", |
802 | full_fname(fname)); | |
2f03f956 AT |
803 | } else { |
804 | set_perms(fname,file,NULL,0); | |
6c3862fa | 805 | if (itemizing) { |
ee1d11c4 | 806 | itemize(file, ndx, statret, &st, |
ef20efcb | 807 | ITEM_LOCAL_CHANGE, 0, NULL); |
6c3862fa WD |
808 | } |
809 | if (code && verbose) { | |
810 | rprintf(code, "%s\n", | |
ecc81fce WD |
811 | safe_fname(fname)); |
812 | } | |
2f03f956 AT |
813 | } |
814 | } else { | |
ee1d11c4 | 815 | if (itemizing) |
ef20efcb | 816 | itemize(file, ndx, statret, &st, 0, 0, NULL); |
8a8356b7 | 817 | set_perms(fname, file, &st, maybe_PERMS_REPORT); |
2f03f956 AT |
818 | } |
819 | return; | |
820 | } | |
2f03f956 | 821 | |
d8169e6f WD |
822 | if (preserve_hard_links |
823 | && hard_link_check(file, ndx, fname, statret, &st, | |
824 | itemizing, code, HL_CHECK_MASTER)) | |
2f03f956 | 825 | return; |
2f03f956 AT |
826 | |
827 | if (!S_ISREG(file->mode)) { | |
2a5d5a8c WD |
828 | if (the_file_list->count == 1) |
829 | fname = f_name(file); | |
ecc81fce WD |
830 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", |
831 | safe_fname(fname)); | |
2f03f956 AT |
832 | return; |
833 | } | |
834 | ||
289a3216 WD |
835 | if (max_size && file->length > max_size) { |
836 | if (verbose > 1) { | |
837 | if (the_file_list->count == 1) | |
838 | fname = f_name(file); | |
839 | rprintf(FINFO, "%s is over max-size\n", | |
840 | safe_fname(fname)); | |
841 | } | |
842 | return; | |
843 | } | |
844 | ||
c3cbcfb8 WD |
845 | if (opt_ignore_existing && statret == 0) { |
846 | if (verbose > 1) | |
847 | rprintf(FINFO, "%s exists\n", safe_fname(fname)); | |
848 | return; | |
849 | } | |
850 | ||
851 | if (update_only && statret == 0 | |
852 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { | |
853 | if (verbose > 1) | |
854 | rprintf(FINFO, "%s is newer\n", safe_fname(fname)); | |
855 | return; | |
856 | } | |
857 | ||
375a4556 | 858 | fnamecmp = fname; |
41cfde6b | 859 | fnamecmp_type = FNAMECMP_FNAME; |
375a4556 | 860 | |
1f1d368a WD |
861 | if (statret == 0 && !S_ISREG(st.st_mode)) { |
862 | if (delete_item(fname, st.st_mode, DEL_TERSE) != 0) | |
863 | return; | |
864 | statret = -1; | |
865 | stat_errno = ENOENT; | |
866 | } | |
867 | ||
06a1dbad | 868 | if (statret != 0 && basis_dir[0] != NULL) { |
aef98825 | 869 | int best_match = -1; |
b7e8628c WD |
870 | int match_level = 0; |
871 | int i = 0; | |
872 | do { | |
873 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, | |
874 | basis_dir[i], fname); | |
aef98825 WD |
875 | if (link_stat(fnamecmpbuf, &st, 0) < 0 |
876 | || !S_ISREG(st.st_mode)) | |
877 | continue; | |
878 | switch (match_level) { | |
879 | case 0: | |
880 | best_match = i; | |
881 | match_level = 1; | |
aef98825 WD |
882 | /* FALL THROUGH */ |
883 | case 1: | |
884 | if (!unchanged_file(fnamecmpbuf, file, &st)) | |
885 | continue; | |
886 | best_match = i; | |
887 | match_level = 2; | |
967866d4 WD |
888 | if (copy_dest) |
889 | break; | |
aef98825 WD |
890 | /* FALL THROUGH */ |
891 | case 2: | |
892 | if (!unchanged_attrs(file, &st)) | |
893 | continue; | |
894 | best_match = i; | |
b7e8628c WD |
895 | match_level = 3; |
896 | break; | |
897 | } | |
aef98825 | 898 | break; |
b7e8628c | 899 | } while (basis_dir[++i] != NULL); |
aef98825 | 900 | if (match_level) { |
9ba46343 | 901 | statret = 0; |
aef98825 WD |
902 | if (i != best_match) { |
903 | i = best_match; | |
b7e8628c WD |
904 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, |
905 | basis_dir[i], fname); | |
9ba46343 WD |
906 | if (link_stat(fnamecmpbuf, &st, 0) < 0) { |
907 | match_level = 0; | |
908 | statret = -1; | |
a1d23b53 | 909 | stat_errno = errno; |
9ba46343 | 910 | } |
b7e8628c | 911 | } |
4f5b0756 | 912 | #ifdef HAVE_LINK |
ee1d11c4 WD |
913 | if (link_dest && match_level == 3) { |
914 | if (hard_link_one(file, ndx, fname, -1, &st, | |
915 | fnamecmpbuf, 1, | |
916 | itemizing && verbose > 1, | |
3556fe5d WD |
917 | code) == 0) { |
918 | if (preserve_hard_links | |
919 | && file->link_u.links) { | |
920 | hard_link_cluster(file, ndx, | |
921 | itemizing, | |
922 | code); | |
923 | } | |
ee1d11c4 | 924 | return; |
3556fe5d | 925 | } |
e2243317 | 926 | match_level = 2; |
70b54e4e | 927 | } |
59c95e42 | 928 | #endif |
967866d4 WD |
929 | if (match_level == 2) { |
930 | /* Copy the file locally. */ | |
931 | if (copy_file(fnamecmpbuf, fname, file->mode) < 0) { | |
932 | if (verbose) { | |
933 | rsyserr(FINFO, errno, | |
934 | "copy_file %s => %s", | |
935 | full_fname(fnamecmpbuf), | |
936 | safe_fname(fname)); | |
937 | } | |
938 | match_level = 0; | |
939 | statret = -1; | |
552a2184 WD |
940 | } else { |
941 | if (itemizing) { | |
942 | itemize(file, ndx, 0, &st, | |
943 | ITEM_LOCAL_CHANGE, 0, | |
944 | NULL); | |
945 | } else if (verbose && code) { | |
946 | rprintf(code, "%s\n", | |
947 | safe_fname(fname)); | |
948 | } | |
949 | set_perms(fname, file, NULL, | |
950 | maybe_PERMS_REPORT); | |
951 | if (preserve_hard_links | |
952 | && file->link_u.links) { | |
953 | hard_link_cluster(file, ndx, | |
954 | itemizing, | |
955 | code); | |
956 | } | |
957 | return; | |
958 | } | |
967866d4 | 959 | } else if (compare_dest || match_level == 1) { |
e7d13fe5 | 960 | fnamecmp = fnamecmpbuf; |
2be2fb3e | 961 | fnamecmp_type = i; |
41cfde6b | 962 | } |
e7d13fe5 WD |
963 | } |
964 | } | |
965 | ||
1f1d368a WD |
966 | real_ret = statret; |
967 | real_st = st; | |
375a4556 | 968 | |
9d954dca | 969 | if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL |
72c19bb3 WD |
970 | && link_stat(partialptr, &partial_st, 0) == 0 |
971 | && S_ISREG(partial_st.st_mode)) { | |
06a1dbad | 972 | if (statret != 0) |
72c19bb3 WD |
973 | goto prepare_to_open; |
974 | } else | |
975 | partialptr = NULL; | |
89f7eff3 | 976 | |
06a1dbad | 977 | if (statret != 0 && fuzzy_basis && dry_run <= 1) { |
8e85be0a WD |
978 | int j = find_fuzzy(file, fuzzy_dirlist); |
979 | if (j >= 0) { | |
980 | fuzzy_file = fuzzy_dirlist->files[j]; | |
981 | f_name_to(fuzzy_file, fnamecmpbuf); | |
982 | if (verbose > 2) { | |
983 | rprintf(FINFO, "fuzzy basis selected for %s: %s\n", | |
984 | safe_fname(fname), safe_fname(fnamecmpbuf)); | |
985 | } | |
8e85be0a | 986 | st.st_size = fuzzy_file->length; |
8e85be0a WD |
987 | statret = 0; |
988 | fnamecmp = fnamecmpbuf; | |
989 | fnamecmp_type = FNAMECMP_FUZZY; | |
990 | } | |
991 | } | |
992 | ||
06a1dbad | 993 | if (statret != 0) { |
d8169e6f WD |
994 | if (preserve_hard_links |
995 | && hard_link_check(file, ndx, fname, statret, &st, | |
996 | itemizing, code, HL_SKIP)) | |
6dff5992 | 997 | return; |
41cfde6b WD |
998 | if (stat_errno == ENOENT) |
999 | goto notify_others; | |
1000 | if (verbose > 1) { | |
e7d13fe5 WD |
1001 | rsyserr(FERROR, stat_errno, |
1002 | "recv_generator: failed to stat %s", | |
d62bcc17 | 1003 | full_fname(fname)); |
2f03f956 AT |
1004 | } |
1005 | return; | |
1006 | } | |
1007 | ||
2be2fb3e | 1008 | if (!compare_dest && fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH) |
b7e8628c | 1009 | ; |
8e85be0a WD |
1010 | else if (fnamecmp_type == FNAMECMP_FUZZY) |
1011 | ; | |
b7e8628c | 1012 | else if (unchanged_file(fnamecmp, file, &st)) { |
a1d23b53 | 1013 | if (fnamecmp_type == FNAMECMP_FNAME) { |
1f1d368a WD |
1014 | if (itemizing) { |
1015 | itemize(file, ndx, real_ret, &real_st, | |
1016 | 0, 0, NULL); | |
1017 | } | |
a1d23b53 | 1018 | set_perms(fname, file, &st, maybe_PERMS_REPORT); |
ee1d11c4 WD |
1019 | if (preserve_hard_links && file->link_u.links) |
1020 | hard_link_cluster(file, ndx, itemizing, code); | |
a1d23b53 WD |
1021 | return; |
1022 | } | |
1023 | /* Only --compare-dest gets here. */ | |
967866d4 WD |
1024 | itemize(file, ndx, real_ret, &real_st, |
1025 | ITEM_NO_DEST_AND_NO_UPDATE, 0, NULL); | |
1026 | return; | |
2f03f956 AT |
1027 | } |
1028 | ||
89f7eff3 | 1029 | prepare_to_open: |
9d954dca WD |
1030 | if (partialptr) { |
1031 | st = partial_st; | |
1032 | fnamecmp = partialptr; | |
1033 | fnamecmp_type = FNAMECMP_PARTIAL_DIR; | |
1034 | statret = 0; | |
1035 | } | |
1036 | ||
beb51aa0 | 1037 | if (!do_xfers || read_batch || whole_file) |
3841a04e | 1038 | goto notify_others; |
2f03f956 | 1039 | |
8e85be0a WD |
1040 | if (fuzzy_basis) { |
1041 | int j = flist_find(fuzzy_dirlist, file); | |
1042 | if (j >= 0) /* don't use changing file as future fuzzy basis */ | |
1043 | fuzzy_dirlist->files[j]->flags |= FLAG_NO_FUZZY; | |
1044 | } | |
1045 | ||
2cda2560 | 1046 | /* open the file */ |
8c9fd200 | 1047 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
1048 | |
1049 | if (fd == -1) { | |
d62bcc17 WD |
1050 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
1051 | full_fname(fnamecmp)); | |
cd6aa5b5 | 1052 | pretend_missing: |
60be6acf | 1053 | /* pretend the file didn't exist */ |
d8169e6f WD |
1054 | if (preserve_hard_links |
1055 | && hard_link_check(file, ndx, fname, statret, &st, | |
1056 | itemizing, code, HL_SKIP)) | |
6dff5992 | 1057 | return; |
1f1d368a | 1058 | statret = real_ret = -1; |
41cfde6b | 1059 | goto notify_others; |
2f03f956 AT |
1060 | } |
1061 | ||
ef20efcb | 1062 | if (inplace && make_backups && fnamecmp_type == FNAMECMP_FNAME) { |
cd6aa5b5 WD |
1063 | if (!(backupptr = get_backup_name(fname))) { |
1064 | close(fd); | |
1065 | return; | |
1066 | } | |
7842418b | 1067 | if (!(back_file = make_file(fname, NULL, NO_FILTERS))) { |
cd6aa5b5 WD |
1068 | close(fd); |
1069 | goto pretend_missing; | |
1070 | } | |
1071 | if (robust_unlink(backupptr) && errno != ENOENT) { | |
1072 | rsyserr(FERROR, errno, "unlink %s", | |
1073 | full_fname(backupptr)); | |
1074 | free(back_file); | |
1075 | close(fd); | |
1076 | return; | |
1077 | } | |
1078 | if ((f_copy = do_open(backupptr, | |
1079 | O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) { | |
1080 | rsyserr(FERROR, errno, "open %s", | |
1081 | full_fname(backupptr)); | |
1082 | free(back_file); | |
1083 | close(fd); | |
1084 | return; | |
1085 | } | |
41cfde6b | 1086 | fnamecmp_type = FNAMECMP_BACKUP; |
cd6aa5b5 WD |
1087 | } |
1088 | ||
dfd5ba6a | 1089 | if (verbose > 3) { |
ecc81fce WD |
1090 | rprintf(FINFO, "gen mapped %s of size %.0f\n", |
1091 | safe_fname(fnamecmp), (double)st.st_size); | |
dfd5ba6a | 1092 | } |
2f03f956 | 1093 | |
2f03f956 | 1094 | if (verbose > 2) |
0492fdfb | 1095 | rprintf(FINFO, "generating and sending sums for %d\n", ndx); |
2f03f956 | 1096 | |
41cfde6b | 1097 | notify_others: |
0492fdfb | 1098 | write_int(f_out, ndx); |
6c3862fa | 1099 | if (itemizing) { |
ee1d11c4 | 1100 | int iflags = ITEM_TRANSFER; |
8237f930 | 1101 | if (always_checksum) |
a1d23b53 | 1102 | iflags |= ITEM_REPORT_CHECKSUM; |
352963dd | 1103 | if (fnamecmp_type != FNAMECMP_FNAME) |
ef20efcb WD |
1104 | iflags |= ITEM_BASIS_TYPE_FOLLOWS; |
1105 | if (fnamecmp_type == FNAMECMP_FUZZY) | |
1106 | iflags |= ITEM_XNAME_FOLLOWS; | |
1f1d368a | 1107 | itemize(file, -1, real_ret, &real_st, iflags, fnamecmp_type, |
ef20efcb | 1108 | fuzzy_file ? fuzzy_file->basename : NULL); |
8e85be0a | 1109 | } |
cd6aa5b5 | 1110 | |
beb51aa0 | 1111 | if (!do_xfers) { |
ee1d11c4 WD |
1112 | if (preserve_hard_links && file->link_u.links) |
1113 | hard_link_cluster(file, ndx, itemizing, code); | |
1114 | return; | |
1115 | } | |
1116 | if (read_batch) | |
41cfde6b WD |
1117 | return; |
1118 | ||
33ab4ad8 | 1119 | if (statret != 0 || whole_file) { |
e86ae6bc WD |
1120 | write_sum_head(f_out, NULL); |
1121 | return; | |
1122 | } | |
1123 | ||
1124 | generate_and_send_sums(fd, st.st_size, f_out, f_copy); | |
1125 | ||
1126 | if (f_copy >= 0) { | |
1127 | close(f_copy); | |
1128 | set_perms(backupptr, back_file, NULL, 0); | |
1129 | if (verbose > 1) { | |
1130 | rprintf(FINFO, "backed up %s to %s\n", | |
1131 | safe_fname(fname), safe_fname(backupptr)); | |
41cfde6b | 1132 | } |
e86ae6bc WD |
1133 | free(back_file); |
1134 | } | |
41cfde6b | 1135 | |
e86ae6bc | 1136 | close(fd); |
2f03f956 AT |
1137 | } |
1138 | ||
1139 | ||
ef20efcb | 1140 | void generate_files(int f_out, struct file_list *flist, char *local_name) |
2f03f956 | 1141 | { |
ac40b747 | 1142 | int i; |
968c8030 | 1143 | char fbuf[MAXPATHLEN]; |
7433d73a WD |
1144 | int itemizing, maybe_PERMS_REPORT; |
1145 | enum logcode code; | |
ac40b747 | 1146 | int lull_mod = allowed_lull * 5; |
3ea9bbd6 WD |
1147 | int need_retouch_dir_times = preserve_times && !omit_dir_times; |
1148 | int need_retouch_dir_perms = 0; | |
0492fdfb WD |
1149 | int save_only_existing = only_existing; |
1150 | int save_opt_ignore_existing = opt_ignore_existing; | |
083acd49 | 1151 | int save_do_progress = do_progress; |
cd908ef4 | 1152 | int save_make_backups = make_backups; |
ee1d11c4 | 1153 | |
7433d73a WD |
1154 | if (protocol_version >= 29) { |
1155 | itemizing = 1; | |
1156 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1157 | code = daemon_log_format_has_i ? 0 : FLOG; | |
1158 | } else if (am_daemon) { | |
beb51aa0 | 1159 | itemizing = daemon_log_format_has_i && do_xfers; |
7433d73a | 1160 | maybe_PERMS_REPORT = PERMS_REPORT; |
beb51aa0 | 1161 | code = itemizing || !do_xfers ? FCLIENT : FINFO; |
7433d73a WD |
1162 | } else if (!am_server) { |
1163 | itemizing = log_format_has_i; | |
1164 | maybe_PERMS_REPORT = log_format_has_i ? 0 : PERMS_REPORT; | |
1165 | code = itemizing ? 0 : FINFO; | |
1166 | } else { | |
1167 | itemizing = 0; | |
1168 | maybe_PERMS_REPORT = PERMS_REPORT; | |
1169 | code = FINFO; | |
1170 | } | |
2f03f956 | 1171 | |
45e08edb WD |
1172 | if (verbose > 2) { |
1173 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
1174 | (long)getpid(), flist->count); | |
1175 | } | |
2f03f956 | 1176 | |
59faec8b | 1177 | if (delete_before && !local_name && flist->count > 0) |
ee1d11c4 | 1178 | do_delete_pass(flist); |
083acd49 | 1179 | do_progress = 0; |
59faec8b | 1180 | |
33ab4ad8 WD |
1181 | if (whole_file < 0) |
1182 | whole_file = 0; | |
3e7053ac | 1183 | if (verbose >= 2) { |
1b1fef20 | 1184 | rprintf(FINFO, "delta-transmission %s\n", |
33ab4ad8 | 1185 | whole_file |
1b1fef20 WD |
1186 | ? "disabled for local transfer or --whole-file" |
1187 | : "enabled"); | |
3e7053ac | 1188 | } |
2cda2560 | 1189 | |
513fd04d WD |
1190 | /* Since we often fill up the outgoing socket and then just sit around |
1191 | * waiting for the other 2 processes to do their thing, we don't want | |
1192 | * to exit on a timeout. If the data stops flowing, the receiver will | |
1193 | * notice that and let us know via the redo pipe (or its closing). */ | |
1194 | ignore_timeout = 1; | |
a57873b7 | 1195 | |
2f03f956 AT |
1196 | for (i = 0; i < flist->count; i++) { |
1197 | struct file_struct *file = flist->files[i]; | |
2f03f956 | 1198 | |
dfd5ba6a WD |
1199 | if (!file->basename) |
1200 | continue; | |
0492fdfb | 1201 | |
1f7e29b9 WD |
1202 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
1203 | file, i, itemizing, maybe_PERMS_REPORT, code, | |
ef20efcb | 1204 | f_out); |
1f7e29b9 | 1205 | |
0492fdfb WD |
1206 | /* We need to ensure that any dirs we create have writeable |
1207 | * permissions during the time we are putting files within | |
1208 | * them. This is then fixed after the transfer is done. */ | |
41b84ce0 WD |
1209 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR) |
1210 | && !list_only) { | |
1f7e29b9 WD |
1211 | int mode = file->mode | S_IWUSR; /* user write */ |
1212 | char *fname = local_name ? local_name : fbuf; | |
1213 | if (do_chmod(fname, mode & CHMOD_BITS) < 0) { | |
1214 | rsyserr(FERROR, errno, | |
1215 | "failed to modify permissions on %s", | |
1216 | full_fname(fname)); | |
1217 | } | |
3ea9bbd6 | 1218 | need_retouch_dir_perms = 1; |
2f03f956 AT |
1219 | } |
1220 | ||
ee1d11c4 WD |
1221 | if (preserve_hard_links) |
1222 | check_for_finished_hlinks(itemizing, code); | |
9ac2395b | 1223 | |
18a11cfd | 1224 | if (allowed_lull && !(i % lull_mod)) |
ee1d11c4 | 1225 | maybe_send_keepalive(); |
c2523a05 | 1226 | else if (!(i % 200)) |
417099fa | 1227 | maybe_flush_socket(); |
2f03f956 | 1228 | } |
ef20efcb | 1229 | recv_generator(NULL, NULL, 0, 0, 0, code, -1); |
c93fad5e | 1230 | if (delete_during) |
ee1d11c4 | 1231 | delete_in_dir(NULL, NULL, NULL); |
2f03f956 AT |
1232 | |
1233 | phase++; | |
1234 | csum_length = SUM_LENGTH; | |
0492fdfb WD |
1235 | only_existing = max_size = opt_ignore_existing = 0; |
1236 | update_only = always_checksum = size_only = 0; | |
e1f67417 | 1237 | ignore_times = 1; |
e6bc6f42 | 1238 | make_backups = 0; /* avoid a duplicate backup for inplace processing */ |
2f03f956 AT |
1239 | |
1240 | if (verbose > 2) | |
1241 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
1242 | ||
7daccb8e | 1243 | write_int(f_out, -1); |
2f03f956 | 1244 | |
bc63ae3f S |
1245 | /* files can cycle through the system more than once |
1246 | * to catch initial checksum errors */ | |
ee1d11c4 | 1247 | while ((i = get_redo_num(itemizing, code)) != -1) { |
bc63ae3f | 1248 | struct file_struct *file = flist->files[i]; |
3fef5364 | 1249 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
ee1d11c4 | 1250 | file, i, itemizing, maybe_PERMS_REPORT, code, |
ef20efcb | 1251 | f_out); |
bc63ae3f | 1252 | } |
2f03f956 | 1253 | |
bc63ae3f | 1254 | phase++; |
0492fdfb WD |
1255 | only_existing = save_only_existing; |
1256 | opt_ignore_existing = save_opt_ignore_existing; | |
cd908ef4 | 1257 | make_backups = save_make_backups; |
0492fdfb | 1258 | |
bc63ae3f S |
1259 | if (verbose > 2) |
1260 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 1261 | |
7daccb8e | 1262 | write_int(f_out, -1); |
70352269 WD |
1263 | /* Reduce round-trip lag-time for a useless delay-updates phase. */ |
1264 | if (protocol_version >= 29 && !delay_updates) | |
1265 | write_int(f_out, -1); | |
6dff5992 | 1266 | |
0438f100 | 1267 | /* Read MSG_DONE for the redo phase (and any prior messages). */ |
ee1d11c4 | 1268 | get_redo_num(itemizing, code); |
6dff5992 | 1269 | |
0438f100 WD |
1270 | if (protocol_version >= 29) { |
1271 | phase++; | |
1272 | if (verbose > 2) | |
1273 | rprintf(FINFO, "generate_files phase=%d\n", phase); | |
70352269 WD |
1274 | if (delay_updates) |
1275 | write_int(f_out, -1); | |
1276 | /* Read MSG_DONE for delay-updates phase & prior messages. */ | |
0438f100 WD |
1277 | get_redo_num(itemizing, code); |
1278 | } | |
1279 | ||
083acd49 | 1280 | do_progress = save_do_progress; |
59faec8b | 1281 | if (delete_after && !local_name && flist->count > 0) |
ee1d11c4 | 1282 | do_delete_pass(flist); |
59faec8b | 1283 | |
0492fdfb WD |
1284 | if ((need_retouch_dir_perms || need_retouch_dir_times) |
1285 | && !list_only && !local_name && !dry_run) { | |
18a11cfd | 1286 | int j = 0; |
3ea9bbd6 WD |
1287 | /* Now we need to fix any directory permissions that were |
1288 | * modified during the transfer and/or re-set any tweaked | |
1289 | * modified-time values. */ | |
1290 | for (i = 0; i < flist->count; i++) { | |
1291 | struct file_struct *file = flist->files[i]; | |
1292 | if (!file->basename || !S_ISDIR(file->mode)) | |
1293 | continue; | |
1294 | if (!need_retouch_dir_times && file->mode & S_IWUSR) | |
1295 | continue; | |
62f9573f WD |
1296 | recv_generator(f_name(file), file, i, itemizing, |
1297 | maybe_PERMS_REPORT, code, -1); | |
417099fa | 1298 | if (allowed_lull && !(++j % lull_mod)) |
ee1d11c4 | 1299 | maybe_send_keepalive(); |
c2523a05 | 1300 | else if (!(j % 200)) |
417099fa | 1301 | maybe_flush_socket(); |
3ea9bbd6 | 1302 | } |
6dff5992 | 1303 | } |
ef20efcb | 1304 | recv_generator(NULL, NULL, 0, 0, 0, code, -1); |
6dff5992 | 1305 | |
f75a53e7 WD |
1306 | if (max_delete > 0 && deletion_count > max_delete) { |
1307 | rprintf(FINFO, | |
1308 | "Deletions stopped due to --max-delete limit (%d skipped)\n", | |
1309 | deletion_count - max_delete); | |
1310 | io_error |= IOERR_DEL_LIMIT; | |
1311 | } | |
1312 | ||
6dff5992 WD |
1313 | if (verbose > 2) |
1314 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 1315 | } |