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; | |
28 | extern int relative_paths; | |
716e73d4 | 29 | extern int keep_dirlinks; |
2f03f956 AT |
30 | extern int preserve_links; |
31 | extern int am_root; | |
32 | extern int preserve_devices; | |
33 | extern int preserve_hard_links; | |
6744b62d WD |
34 | extern int preserve_perms; |
35 | extern int preserve_uid; | |
36 | extern int preserve_gid; | |
2f03f956 | 37 | extern int update_only; |
3d6feada | 38 | extern int opt_ignore_existing; |
2f03f956 AT |
39 | extern int csum_length; |
40 | extern int ignore_times; | |
f83f0548 | 41 | extern int size_only; |
2f03f956 | 42 | extern int io_timeout; |
d04e9c51 | 43 | extern int protocol_version; |
2f03f956 | 44 | extern int always_checksum; |
60c8d7bc | 45 | extern char *compare_dest; |
59c95e42 | 46 | extern int link_dest; |
5774786f WD |
47 | extern int whole_file; |
48 | extern int local_server; | |
e610e50f | 49 | extern int read_batch; |
5774786f WD |
50 | extern int write_batch; |
51 | extern int list_only; | |
52 | extern int only_existing; | |
53 | extern int orig_umask; | |
54 | extern int safe_symlinks; | |
ec8290c8 | 55 | extern unsigned int block_size; |
2f03f956 | 56 | |
97f9dcae WD |
57 | extern struct exclude_list_struct server_exclude_list; |
58 | ||
2f03f956 AT |
59 | |
60 | /* choose whether to skip a particular file */ | |
dfd5ba6a | 61 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 AT |
62 | { |
63 | if (st->st_size != file->length) { | |
64 | return 0; | |
65 | } | |
59c95e42 | 66 | if (link_dest) { |
e7bc9b64 | 67 | if (preserve_perms |
67e78a82 | 68 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
bb24028f S |
69 | return 0; |
70 | ||
6744b62d | 71 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 72 | return 0; |
bb24028f | 73 | |
a60e2dca S |
74 | if (preserve_gid && file->gid != GID_NONE |
75 | && st->st_gid != file->gid) | |
59c95e42 | 76 | return 0; |
59c95e42 DD |
77 | } |
78 | ||
2cda2560 | 79 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
80 | of the file time to determine whether to sync */ |
81 | if (always_checksum && S_ISREG(st->st_mode)) { | |
82 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
83 | char fnamecmpdest[MAXPATHLEN]; |
84 | ||
85 | if (compare_dest != NULL) { | |
86 | if (access(fname, 0) != 0) { | |
248ed45f WD |
87 | pathjoin(fnamecmpdest, sizeof fnamecmpdest, |
88 | compare_dest, fname); | |
60c8d7bc DD |
89 | fname = fnamecmpdest; |
90 | } | |
91 | } | |
2f03f956 | 92 | file_checksum(fname,sum,st->st_size); |
728d0922 | 93 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
4499c0ee | 94 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
95 | } |
96 | ||
f83f0548 AT |
97 | if (size_only) { |
98 | return 1; | |
99 | } | |
100 | ||
2f03f956 AT |
101 | if (ignore_times) { |
102 | return 0; | |
103 | } | |
104 | ||
5b56cc19 | 105 | return (cmp_modtime(st->st_mtime,file->modtime) == 0); |
2f03f956 AT |
106 | } |
107 | ||
108 | ||
2f03f956 | 109 | /* |
0e36d9da | 110 | * NULL sum_struct means we have no checksums |
195bd906 | 111 | */ |
fc0257c9 | 112 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 113 | { |
fc0257c9 S |
114 | static struct sum_struct null_sum; |
115 | ||
c338460d | 116 | if (sum == NULL) |
fc0257c9 S |
117 | sum = &null_sum; |
118 | ||
119 | write_int(f, sum->count); | |
120 | write_int(f, sum->blength); | |
d04e9c51 | 121 | if (protocol_version >= 27) |
fc0257c9 S |
122 | write_int(f, sum->s2length); |
123 | write_int(f, sum->remainder); | |
2f03f956 AT |
124 | } |
125 | ||
ec8290c8 | 126 | /* |
195bd906 | 127 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 128 | * calculating dynamic block and checksum sizes. |
195bd906 | 129 | * |
ec8290c8 | 130 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
131 | * function to encapsulate the logic. |
132 | * | |
133 | * The block size is a rounded square root of file length. | |
134 | * | |
135 | * The checksum size is determined according to: | |
136 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
137 | * provided by Donovan Baarda which gives a probability of rsync | |
138 | * algorithm corrupting data and falling back using the whole md4 | |
139 | * checksums. | |
140 | * | |
141 | * This might be made one of several selectable heuristics. | |
142 | */ | |
bceec82f | 143 | |
423dba8e | 144 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 145 | { |
da9d12f5 WD |
146 | unsigned int blength; |
147 | int s2length; | |
195bd906 S |
148 | uint32 c; |
149 | uint64 l; | |
150 | ||
151 | if (block_size) { | |
152 | blength = block_size; | |
153 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
154 | blength = BLOCK_SIZE; | |
155 | } else { | |
156 | l = len; | |
157 | c = 1; | |
158 | while (l >>= 2) { | |
159 | c <<= 1; | |
160 | } | |
161 | blength = 0; | |
162 | do { | |
163 | blength |= c; | |
fb55e28d | 164 | if (len < (uint64)blength * blength) |
195bd906 S |
165 | blength &= ~c; |
166 | c >>= 1; | |
167 | } while (c >= 8); /* round to multiple of 8 */ | |
168 | blength = MAX(blength, BLOCK_SIZE); | |
169 | } | |
170 | ||
d04e9c51 | 171 | if (protocol_version < 27) { |
195bd906 S |
172 | s2length = csum_length; |
173 | } else if (csum_length == SUM_LENGTH) { | |
174 | s2length = SUM_LENGTH; | |
175 | } else { | |
da9d12f5 | 176 | int b = BLOCKSUM_BIAS; |
195bd906 S |
177 | l = len; |
178 | while (l >>= 1) { | |
179 | b += 2; | |
180 | } | |
181 | c = blength; | |
182 | while (c >>= 1 && b) { | |
183 | b--; | |
184 | } | |
185 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
186 | * subtract rollsum, | |
187 | * round up | |
188 | * --optimize in compiler-- | |
189 | */ | |
190 | s2length = MAX(s2length, csum_length); | |
191 | s2length = MIN(s2length, SUM_LENGTH); | |
192 | } | |
193 | ||
194 | sum->flength = len; | |
195 | sum->blength = blength; | |
196 | sum->s2length = s2length; | |
197 | sum->count = (len + (blength - 1)) / blength; | |
198 | sum->remainder = (len % blength); | |
199 | ||
200 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
201 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
202 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 203 | sum->s2length, (double)sum->flength); |
195bd906 S |
204 | } |
205 | } | |
80605142 | 206 | |
bceec82f MP |
207 | /** |
208 | * Perhaps we want to just send an empty checksum set for this file, | |
209 | * which will force the whole thing to be literally transferred. | |
210 | * | |
211 | * When do we do this? If the user's explicitly said they | |
212 | * want the whole thing, or if { they haven't explicitly | |
213 | * requested a delta, and it's local but not batch mode.} | |
214 | * | |
215 | * Whew. */ | |
216 | static BOOL disable_deltas_p(void) | |
217 | { | |
2cda2560 | 218 | if (whole_file > 0) |
bceec82f | 219 | return True; |
935c6417 | 220 | if (whole_file == 0 || write_batch || read_batch) |
bceec82f | 221 | return False; |
2cda2560 | 222 | return local_server; |
bceec82f MP |
223 | } |
224 | ||
225 | ||
80605142 WD |
226 | /* |
227 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 228 | * |
80605142 WD |
229 | * Generate approximately one checksum every block_len bytes. |
230 | */ | |
2990e06f | 231 | static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out) |
2f03f956 | 232 | { |
80605142 WD |
233 | size_t i; |
234 | struct sum_struct sum; | |
2f03f956 AT |
235 | OFF_T offset = 0; |
236 | ||
423dba8e | 237 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 238 | |
fc0257c9 | 239 | write_sum_head(f_out, &sum); |
2f03f956 | 240 | |
80605142 | 241 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 242 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 243 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
244 | uint32 sum1 = get_checksum1(map, n1); |
245 | char sum2[SUM_LENGTH]; | |
2f03f956 | 246 | |
80605142 | 247 | get_checksum2(map, n1, sum2); |
2f03f956 | 248 | |
80605142 | 249 | if (verbose > 3) { |
e66dfd18 | 250 | rprintf(FINFO, |
0e36d9da WD |
251 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
252 | (double)i, (double)offset, n1, | |
253 | (unsigned long)sum1); | |
80605142 WD |
254 | } |
255 | write_int(f_out, sum1); | |
fc0257c9 | 256 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
257 | len -= n1; |
258 | offset += n1; | |
259 | } | |
2f03f956 AT |
260 | } |
261 | ||
262 | ||
ef1aa910 | 263 | |
420ef2c4 MP |
264 | /** |
265 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
266 | * |
267 | * First fixes up permissions, then generates checksums for the file. | |
268 | * | |
420ef2c4 MP |
269 | * @note This comment was added later by mbp who was trying to work it |
270 | * out. It might be wrong. | |
2cda2560 | 271 | **/ |
dfd5ba6a | 272 | void recv_generator(char *fname, struct file_struct *file, int i, int f_out) |
2cda2560 | 273 | { |
2f03f956 AT |
274 | int fd; |
275 | STRUCT_STAT st; | |
968c8030 | 276 | struct map_struct *mapbuf; |
2f03f956 | 277 | int statret; |
375a4556 DD |
278 | char *fnamecmp; |
279 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 280 | |
dfd5ba6a WD |
281 | if (list_only) |
282 | return; | |
2f03f956 AT |
283 | |
284 | if (verbose > 2) | |
285 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
286 | ||
97f9dcae WD |
287 | if (server_exclude_list.head |
288 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
289 | S_ISDIR(file->mode)) < 0) { |
290 | if (verbose) { | |
291 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
292 | fname); | |
293 | } | |
97f9dcae | 294 | return; |
3e35c34b | 295 | } |
97f9dcae | 296 | |
6218c7bf | 297 | statret = link_stat(fname, &st, keep_dirlinks && S_ISDIR(file->mode)); |
63787382 | 298 | |
1347d512 AT |
299 | if (only_existing && statret == -1 && errno == ENOENT) { |
300 | /* we only want to update existing files */ | |
3e35c34b WD |
301 | if (verbose > 1) |
302 | rprintf(FINFO, "not creating new file \"%s\"\n", fname); | |
1347d512 AT |
303 | return; |
304 | } | |
305 | ||
2cda2560 WD |
306 | if (statret == 0 && |
307 | !preserve_perms && | |
4df9f368 AT |
308 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
309 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
310 | * permissions then act as though the remote end sent |
311 | * us the file permissions we already have */ | |
67e78a82 WD |
312 | file->mode = (file->mode & ~CHMOD_BITS) |
313 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
314 | } |
315 | ||
2f03f956 | 316 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
317 | /* The file to be received is a directory, so we need |
318 | * to prepare appropriately. If there is already a | |
319 | * file of that name and it is *not* a directory, then | |
320 | * we need to delete it. If it doesn't exist, then | |
321 | * recursively create it. */ | |
322 | ||
ec8290c8 WD |
323 | if (dry_run) |
324 | return; /* TODO: causes inaccuracies -- fix */ | |
2f03f956 | 325 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 326 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
327 | rsyserr(FERROR, errno, |
328 | "recv_generator: unlink %s to make room for directory", | |
329 | full_fname(fname)); | |
2f03f956 AT |
330 | return; |
331 | } | |
332 | statret = -1; | |
333 | } | |
334 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
335 | if (!(relative_paths && errno == ENOENT |
336 | && create_directory_path(fname, orig_umask) == 0 | |
337 | && do_mkdir(fname, file->mode) == 0)) { | |
338 | rsyserr(FERROR, errno, | |
339 | "recv_generator: mkdir %s failed", | |
340 | full_fname(fname)); | |
2f03f956 AT |
341 | } |
342 | } | |
716e73d4 WD |
343 | /* f_out is set to -1 when doing final directory-permission |
344 | * and modification-time repair. */ | |
345 | if (set_perms(fname, file, statret ? NULL : &st, 0) | |
346 | && verbose && f_out != -1) | |
2f03f956 AT |
347 | rprintf(FINFO,"%s/\n",fname); |
348 | return; | |
349 | } | |
350 | ||
351 | if (preserve_links && S_ISLNK(file->mode)) { | |
352 | #if SUPPORT_LINKS | |
353 | char lnk[MAXPATHLEN]; | |
354 | int l; | |
2f03f956 | 355 | |
728d0922 | 356 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 357 | if (verbose) { |
ea42541f | 358 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 359 | full_fname(fname), file->u.link); |
2f03f956 AT |
360 | } |
361 | return; | |
362 | } | |
363 | if (statret == 0) { | |
364 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
365 | if (l > 0) { | |
366 | lnk[l] = 0; | |
85d4d142 MP |
367 | /* A link already pointing to the |
368 | * right place -- no further action | |
369 | * required. */ | |
728d0922 | 370 | if (strcmp(lnk,file->u.link) == 0) { |
c41b52c4 WD |
371 | set_perms(fname, file, &st, |
372 | PERMS_REPORT); | |
2f03f956 AT |
373 | return; |
374 | } | |
2cda2560 | 375 | } |
85d4d142 MP |
376 | /* Not a symlink, so delete whatever's |
377 | * already there and put a new symlink | |
2cda2560 | 378 | * in place. */ |
4b3977bf | 379 | delete_file(fname); |
2f03f956 | 380 | } |
728d0922 | 381 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 WD |
382 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
383 | full_fname(fname), file->u.link); | |
2f03f956 AT |
384 | } else { |
385 | set_perms(fname,file,NULL,0); | |
386 | if (verbose) { | |
728d0922 | 387 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
388 | } |
389 | } | |
390 | #endif | |
391 | return; | |
392 | } | |
393 | ||
394 | #ifdef HAVE_MKNOD | |
395 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 396 | if (statret != 0 || |
2f03f956 | 397 | st.st_mode != file->mode || |
3915fd75 | 398 | st.st_rdev != file->u.rdev) { |
2f03f956 | 399 | delete_file(fname); |
d62bcc17 | 400 | if (verbose > 2) { |
2f03f956 | 401 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
728d0922 | 402 | fname,(int)file->mode,(int)file->u.rdev); |
d62bcc17 | 403 | } |
728d0922 | 404 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
405 | rsyserr(FERROR, errno, "mknod %s failed", |
406 | full_fname(fname)); | |
2f03f956 AT |
407 | } else { |
408 | set_perms(fname,file,NULL,0); | |
409 | if (verbose) | |
410 | rprintf(FINFO,"%s\n",fname); | |
411 | } | |
412 | } else { | |
c41b52c4 | 413 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
414 | } |
415 | return; | |
416 | } | |
417 | #endif | |
418 | ||
6dff5992 | 419 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 420 | return; |
2f03f956 AT |
421 | |
422 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 423 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
424 | return; |
425 | } | |
426 | ||
375a4556 DD |
427 | fnamecmp = fname; |
428 | ||
c338460d | 429 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
430 | /* try the file at compare_dest instead */ |
431 | int saveerrno = errno; | |
248ed45f | 432 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
6218c7bf | 433 | statret = link_stat(fnamecmpbuf, &st, 0); |
375a4556 DD |
434 | if (!S_ISREG(st.st_mode)) |
435 | statret = -1; | |
436 | if (statret == -1) | |
437 | errno = saveerrno; | |
59c95e42 DD |
438 | #if HAVE_LINK |
439 | else if (link_dest && !dry_run) { | |
440 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 441 | if (verbose > 0) { |
d62bcc17 WD |
442 | rsyserr(FINFO, errno, "link %s => %s", |
443 | fnamecmpbuf, fname); | |
e7bc9b64 | 444 | } |
59c95e42 DD |
445 | } |
446 | fnamecmp = fnamecmpbuf; | |
447 | } | |
448 | #endif | |
375a4556 DD |
449 | else |
450 | fnamecmp = fnamecmpbuf; | |
451 | } | |
452 | ||
2f03f956 | 453 | if (statret == -1) { |
6dff5992 WD |
454 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
455 | return; | |
2f03f956 AT |
456 | if (errno == ENOENT) { |
457 | write_int(f_out,i); | |
ec8290c8 WD |
458 | if (!dry_run) |
459 | write_sum_head(f_out, NULL); | |
ea42541f | 460 | } else if (verbose > 1) { |
d62bcc17 WD |
461 | rsyserr(FERROR, errno, |
462 | "recv_generator: failed to open %s", | |
463 | full_fname(fname)); | |
2f03f956 AT |
464 | } |
465 | return; | |
466 | } | |
467 | ||
468 | if (!S_ISREG(st.st_mode)) { | |
469 | if (delete_file(fname) != 0) { | |
470 | return; | |
471 | } | |
472 | ||
473 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
474 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
475 | return; | |
2f03f956 | 476 | write_int(f_out,i); |
ec8290c8 WD |
477 | if (!dry_run) |
478 | write_sum_head(f_out, NULL); | |
2f03f956 AT |
479 | return; |
480 | } | |
481 | ||
2cda2560 | 482 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
483 | if (verbose > 1) |
484 | rprintf(FINFO,"%s exists\n",fname); | |
485 | return; | |
2cda2560 | 486 | } |
3d6feada | 487 | |
5b56cc19 | 488 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
489 | if (verbose > 1) |
490 | rprintf(FINFO,"%s is newer\n",fname); | |
491 | return; | |
492 | } | |
493 | ||
494 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 | 495 | if (fnamecmp == fname) |
c41b52c4 | 496 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
497 | return; |
498 | } | |
499 | ||
500 | if (dry_run) { | |
501 | write_int(f_out,i); | |
502 | return; | |
503 | } | |
504 | ||
bceec82f | 505 | if (disable_deltas_p()) { |
2f03f956 | 506 | write_int(f_out,i); |
fc0257c9 | 507 | write_sum_head(f_out, NULL); |
2f03f956 AT |
508 | return; |
509 | } | |
510 | ||
2cda2560 | 511 | /* open the file */ |
8c9fd200 | 512 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
513 | |
514 | if (fd == -1) { | |
d62bcc17 WD |
515 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
516 | full_fname(fnamecmp)); | |
60be6acf | 517 | /* pretend the file didn't exist */ |
6dff5992 WD |
518 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
519 | return; | |
60be6acf | 520 | write_int(f_out,i); |
fc0257c9 | 521 | write_sum_head(f_out, NULL); |
2f03f956 AT |
522 | return; |
523 | } | |
524 | ||
968c8030 WD |
525 | if (st.st_size > 0) |
526 | mapbuf = map_file(fd,st.st_size); | |
527 | else | |
528 | mapbuf = NULL; | |
2f03f956 | 529 | |
dfd5ba6a WD |
530 | if (verbose > 3) { |
531 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
532 | (double)st.st_size); | |
533 | } | |
2f03f956 | 534 | |
2f03f956 | 535 | if (verbose > 2) |
80605142 | 536 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
537 | |
538 | write_int(f_out,i); | |
968c8030 | 539 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
540 | |
541 | close(fd); | |
ec8290c8 WD |
542 | if (mapbuf) |
543 | unmap_file(mapbuf); | |
2f03f956 AT |
544 | } |
545 | ||
546 | ||
b9b15fb1 | 547 | void generate_files(int f, struct file_list *flist, char *local_name) |
2f03f956 AT |
548 | { |
549 | int i; | |
550 | int phase=0; | |
968c8030 | 551 | char fbuf[MAXPATHLEN]; |
2f03f956 | 552 | |
45e08edb WD |
553 | if (verbose > 2) { |
554 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
555 | (long)getpid(), flist->count); | |
556 | } | |
2f03f956 | 557 | |
3e7053ac MP |
558 | if (verbose >= 2) { |
559 | rprintf(FINFO, | |
2cda2560 | 560 | disable_deltas_p() |
3e7053ac MP |
561 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
562 | : "delta transmission enabled\n"); | |
563 | } | |
2cda2560 | 564 | |
a57873b7 AT |
565 | /* we expect to just sit around now, so don't exit on a |
566 | timeout. If we really get a timeout then the other process should | |
567 | exit */ | |
568 | io_timeout = 0; | |
569 | ||
2f03f956 AT |
570 | for (i = 0; i < flist->count; i++) { |
571 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 572 | struct file_struct copy; |
2f03f956 | 573 | |
dfd5ba6a WD |
574 | if (!file->basename) |
575 | continue; | |
2f03f956 AT |
576 | /* we need to ensure that any directories we create have writeable |
577 | permissions initially so that we can create the files within | |
578 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
579 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
580 | copy = *file; | |
2cda2560 WD |
581 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
582 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
583 | copy.mode |= S_IWUSR; /* user write */ |
584 | file = © | |
2f03f956 AT |
585 | } |
586 | ||
3fef5364 WD |
587 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
588 | file, i, f); | |
2f03f956 AT |
589 | } |
590 | ||
591 | phase++; | |
592 | csum_length = SUM_LENGTH; | |
593 | ignore_times=1; | |
594 | ||
595 | if (verbose > 2) | |
596 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
597 | ||
598 | write_int(f,-1); | |
599 | ||
bc63ae3f S |
600 | /* files can cycle through the system more than once |
601 | * to catch initial checksum errors */ | |
b9b15fb1 | 602 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 603 | struct file_struct *file = flist->files[i]; |
3fef5364 WD |
604 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
605 | file, i, f); | |
bc63ae3f | 606 | } |
2f03f956 | 607 | |
bc63ae3f S |
608 | phase++; |
609 | if (verbose > 2) | |
610 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 611 | |
bc63ae3f | 612 | write_int(f,-1); |
6dff5992 WD |
613 | |
614 | if (preserve_hard_links) | |
615 | do_hard_links(); | |
616 | ||
617 | /* now we need to fix any directory permissions that were | |
618 | * modified during the transfer */ | |
619 | for (i = 0; i < flist->count; i++) { | |
620 | struct file_struct *file = flist->files[i]; | |
ec8290c8 WD |
621 | if (!file->basename || !S_ISDIR(file->mode)) |
622 | continue; | |
6dff5992 WD |
623 | recv_generator(local_name ? local_name : f_name(file), |
624 | file, i, -1); | |
625 | } | |
626 | ||
627 | if (verbose > 2) | |
628 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 629 | } |