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; | |
29 | extern int preserve_links; | |
30 | extern int am_root; | |
31 | extern int preserve_devices; | |
32 | extern int preserve_hard_links; | |
6744b62d WD |
33 | extern int preserve_perms; |
34 | extern int preserve_uid; | |
35 | extern int preserve_gid; | |
2f03f956 | 36 | extern int update_only; |
3d6feada | 37 | extern int opt_ignore_existing; |
2f03f956 AT |
38 | extern int csum_length; |
39 | extern int ignore_times; | |
f83f0548 | 40 | extern int size_only; |
2f03f956 | 41 | extern int io_timeout; |
d04e9c51 | 42 | extern int protocol_version; |
2f03f956 | 43 | extern int always_checksum; |
60c8d7bc | 44 | extern char *compare_dest; |
59c95e42 | 45 | extern int link_dest; |
5774786f WD |
46 | extern int whole_file; |
47 | extern int local_server; | |
48 | extern int write_batch; | |
49 | extern int list_only; | |
50 | extern int only_existing; | |
51 | extern int orig_umask; | |
52 | extern int safe_symlinks; | |
2f03f956 AT |
53 | |
54 | ||
55 | /* choose whether to skip a particular file */ | |
dfd5ba6a | 56 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 AT |
57 | { |
58 | if (st->st_size != file->length) { | |
59 | return 0; | |
60 | } | |
59c95e42 | 61 | if (link_dest) { |
e7bc9b64 | 62 | if (preserve_perms |
67e78a82 | 63 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
bb24028f S |
64 | return 0; |
65 | ||
6744b62d | 66 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 67 | return 0; |
bb24028f | 68 | |
a60e2dca S |
69 | if (preserve_gid && file->gid != GID_NONE |
70 | && st->st_gid != file->gid) | |
59c95e42 | 71 | return 0; |
59c95e42 DD |
72 | } |
73 | ||
2cda2560 | 74 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
75 | of the file time to determine whether to sync */ |
76 | if (always_checksum && S_ISREG(st->st_mode)) { | |
77 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
78 | char fnamecmpdest[MAXPATHLEN]; |
79 | ||
80 | if (compare_dest != NULL) { | |
81 | if (access(fname, 0) != 0) { | |
248ed45f WD |
82 | pathjoin(fnamecmpdest, sizeof fnamecmpdest, |
83 | compare_dest, fname); | |
60c8d7bc DD |
84 | fname = fnamecmpdest; |
85 | } | |
86 | } | |
2f03f956 | 87 | file_checksum(fname,sum,st->st_size); |
728d0922 | 88 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
4499c0ee | 89 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
90 | } |
91 | ||
f83f0548 AT |
92 | if (size_only) { |
93 | return 1; | |
94 | } | |
95 | ||
2f03f956 AT |
96 | if (ignore_times) { |
97 | return 0; | |
98 | } | |
99 | ||
5b56cc19 | 100 | return (cmp_modtime(st->st_mtime,file->modtime) == 0); |
2f03f956 AT |
101 | } |
102 | ||
103 | ||
2f03f956 | 104 | /* |
0e36d9da | 105 | * NULL sum_struct means we have no checksums |
195bd906 | 106 | */ |
fc0257c9 | 107 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 108 | { |
fc0257c9 S |
109 | static struct sum_struct null_sum; |
110 | ||
c338460d | 111 | if (sum == NULL) |
fc0257c9 S |
112 | sum = &null_sum; |
113 | ||
114 | write_int(f, sum->count); | |
115 | write_int(f, sum->blength); | |
d04e9c51 | 116 | if (protocol_version >= 27) |
fc0257c9 S |
117 | write_int(f, sum->s2length); |
118 | write_int(f, sum->remainder); | |
2f03f956 AT |
119 | } |
120 | ||
195bd906 S |
121 | /* |
122 | * set (initialize) the size entries in the per-file sum_struct | |
123 | * calulating dynamic block ans checksum sizes. | |
124 | * | |
125 | * This is only called from generate_and_send_sums() but is a seperate | |
126 | * function to encapsulate the logic. | |
127 | * | |
128 | * The block size is a rounded square root of file length. | |
129 | * | |
130 | * The checksum size is determined according to: | |
131 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
132 | * provided by Donovan Baarda which gives a probability of rsync | |
133 | * algorithm corrupting data and falling back using the whole md4 | |
134 | * checksums. | |
135 | * | |
136 | * This might be made one of several selectable heuristics. | |
137 | */ | |
bceec82f | 138 | |
423dba8e | 139 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 140 | { |
da9d12f5 WD |
141 | extern unsigned int block_size; |
142 | unsigned int blength; | |
143 | int s2length; | |
195bd906 S |
144 | uint32 c; |
145 | uint64 l; | |
146 | ||
147 | if (block_size) { | |
148 | blength = block_size; | |
149 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
150 | blength = BLOCK_SIZE; | |
151 | } else { | |
152 | l = len; | |
153 | c = 1; | |
154 | while (l >>= 2) { | |
155 | c <<= 1; | |
156 | } | |
157 | blength = 0; | |
158 | do { | |
159 | blength |= c; | |
fb55e28d | 160 | if (len < (uint64)blength * blength) |
195bd906 S |
161 | blength &= ~c; |
162 | c >>= 1; | |
163 | } while (c >= 8); /* round to multiple of 8 */ | |
164 | blength = MAX(blength, BLOCK_SIZE); | |
165 | } | |
166 | ||
d04e9c51 | 167 | if (protocol_version < 27) { |
195bd906 S |
168 | s2length = csum_length; |
169 | } else if (csum_length == SUM_LENGTH) { | |
170 | s2length = SUM_LENGTH; | |
171 | } else { | |
da9d12f5 | 172 | int b = BLOCKSUM_BIAS; |
195bd906 S |
173 | l = len; |
174 | while (l >>= 1) { | |
175 | b += 2; | |
176 | } | |
177 | c = blength; | |
178 | while (c >>= 1 && b) { | |
179 | b--; | |
180 | } | |
181 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
182 | * subtract rollsum, | |
183 | * round up | |
184 | * --optimize in compiler-- | |
185 | */ | |
186 | s2length = MAX(s2length, csum_length); | |
187 | s2length = MIN(s2length, SUM_LENGTH); | |
188 | } | |
189 | ||
190 | sum->flength = len; | |
191 | sum->blength = blength; | |
192 | sum->s2length = s2length; | |
193 | sum->count = (len + (blength - 1)) / blength; | |
194 | sum->remainder = (len % blength); | |
195 | ||
196 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
197 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
198 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 199 | sum->s2length, (double)sum->flength); |
195bd906 S |
200 | } |
201 | } | |
80605142 | 202 | |
bceec82f MP |
203 | /** |
204 | * Perhaps we want to just send an empty checksum set for this file, | |
205 | * which will force the whole thing to be literally transferred. | |
206 | * | |
207 | * When do we do this? If the user's explicitly said they | |
208 | * want the whole thing, or if { they haven't explicitly | |
209 | * requested a delta, and it's local but not batch mode.} | |
210 | * | |
211 | * Whew. */ | |
212 | static BOOL disable_deltas_p(void) | |
213 | { | |
2cda2560 | 214 | if (whole_file > 0) |
bceec82f | 215 | return True; |
2cda2560 | 216 | if (whole_file == 0 || write_batch) |
bceec82f | 217 | return False; |
2cda2560 | 218 | return local_server; |
bceec82f MP |
219 | } |
220 | ||
221 | ||
80605142 WD |
222 | /* |
223 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 224 | * |
80605142 WD |
225 | * Generate approximately one checksum every block_len bytes. |
226 | */ | |
2990e06f | 227 | static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out) |
2f03f956 | 228 | { |
80605142 WD |
229 | size_t i; |
230 | struct sum_struct sum; | |
2f03f956 AT |
231 | OFF_T offset = 0; |
232 | ||
423dba8e | 233 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 234 | |
fc0257c9 | 235 | write_sum_head(f_out, &sum); |
2f03f956 | 236 | |
80605142 | 237 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 238 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 239 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
240 | uint32 sum1 = get_checksum1(map, n1); |
241 | char sum2[SUM_LENGTH]; | |
2f03f956 | 242 | |
80605142 | 243 | get_checksum2(map, n1, sum2); |
2f03f956 | 244 | |
80605142 | 245 | if (verbose > 3) { |
e66dfd18 | 246 | rprintf(FINFO, |
0e36d9da WD |
247 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
248 | (double)i, (double)offset, n1, | |
249 | (unsigned long)sum1); | |
80605142 WD |
250 | } |
251 | write_int(f_out, sum1); | |
fc0257c9 | 252 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
253 | len -= n1; |
254 | offset += n1; | |
255 | } | |
2f03f956 AT |
256 | } |
257 | ||
258 | ||
ef1aa910 | 259 | |
420ef2c4 MP |
260 | /** |
261 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
262 | * |
263 | * First fixes up permissions, then generates checksums for the file. | |
264 | * | |
420ef2c4 MP |
265 | * @note This comment was added later by mbp who was trying to work it |
266 | * out. It might be wrong. | |
2cda2560 | 267 | **/ |
dfd5ba6a | 268 | void recv_generator(char *fname, struct file_struct *file, int i, int f_out) |
2cda2560 | 269 | { |
2f03f956 AT |
270 | int fd; |
271 | STRUCT_STAT st; | |
968c8030 | 272 | struct map_struct *mapbuf; |
2f03f956 | 273 | int statret; |
375a4556 DD |
274 | char *fnamecmp; |
275 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 276 | |
dfd5ba6a WD |
277 | if (list_only) |
278 | return; | |
2f03f956 AT |
279 | |
280 | if (verbose > 2) | |
281 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
282 | ||
283 | statret = link_stat(fname,&st); | |
63787382 | 284 | |
1347d512 AT |
285 | if (only_existing && statret == -1 && errno == ENOENT) { |
286 | /* we only want to update existing files */ | |
1bbd10fe | 287 | if (verbose > 1) rprintf(FINFO, "not creating new file \"%s\"\n",fname); |
1347d512 AT |
288 | return; |
289 | } | |
290 | ||
2cda2560 WD |
291 | if (statret == 0 && |
292 | !preserve_perms && | |
4df9f368 AT |
293 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
294 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
295 | * permissions then act as though the remote end sent |
296 | * us the file permissions we already have */ | |
67e78a82 WD |
297 | file->mode = (file->mode & ~CHMOD_BITS) |
298 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
299 | } |
300 | ||
2f03f956 | 301 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
302 | /* The file to be received is a directory, so we need |
303 | * to prepare appropriately. If there is already a | |
304 | * file of that name and it is *not* a directory, then | |
305 | * we need to delete it. If it doesn't exist, then | |
306 | * recursively create it. */ | |
307 | ||
85d4d142 | 308 | if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */ |
2f03f956 | 309 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 310 | if (robust_unlink(fname) != 0) { |
ea42541f WD |
311 | rprintf(FERROR, |
312 | "recv_generator: unlink %s to make room for directory: %s\n", | |
313 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
314 | return; |
315 | } | |
316 | statret = -1; | |
317 | } | |
318 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
2cda2560 WD |
319 | if (!(relative_paths && errno==ENOENT && |
320 | create_directory_path(fname, orig_umask)==0 && | |
2f03f956 | 321 | do_mkdir(fname,file->mode)==0)) { |
ea42541f WD |
322 | rprintf(FERROR, "recv_generator: mkdir %s failed: %s\n", |
323 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
324 | } |
325 | } | |
2cda2560 | 326 | /* f_out is set to -1 when doing final directory |
de343e3c | 327 | permission and modification time repair */ |
2cda2560 | 328 | if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) |
2f03f956 AT |
329 | rprintf(FINFO,"%s/\n",fname); |
330 | return; | |
331 | } | |
332 | ||
333 | if (preserve_links && S_ISLNK(file->mode)) { | |
334 | #if SUPPORT_LINKS | |
335 | char lnk[MAXPATHLEN]; | |
336 | int l; | |
2f03f956 | 337 | |
728d0922 | 338 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 339 | if (verbose) { |
ea42541f | 340 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 341 | full_fname(fname), file->u.link); |
2f03f956 AT |
342 | } |
343 | return; | |
344 | } | |
345 | if (statret == 0) { | |
346 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
347 | if (l > 0) { | |
348 | lnk[l] = 0; | |
85d4d142 MP |
349 | /* A link already pointing to the |
350 | * right place -- no further action | |
351 | * required. */ | |
728d0922 | 352 | if (strcmp(lnk,file->u.link) == 0) { |
2f03f956 AT |
353 | set_perms(fname,file,&st,1); |
354 | return; | |
355 | } | |
2cda2560 | 356 | } |
85d4d142 MP |
357 | /* Not a symlink, so delete whatever's |
358 | * already there and put a new symlink | |
2cda2560 | 359 | * in place. */ |
4b3977bf | 360 | delete_file(fname); |
2f03f956 | 361 | } |
728d0922 | 362 | if (do_symlink(file->u.link,fname) != 0) { |
ea42541f | 363 | rprintf(FERROR, "symlink %s -> \"%s\" failed: %s\n", |
728d0922 | 364 | full_fname(fname), file->u.link, strerror(errno)); |
2f03f956 AT |
365 | } else { |
366 | set_perms(fname,file,NULL,0); | |
367 | if (verbose) { | |
728d0922 | 368 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
369 | } |
370 | } | |
371 | #endif | |
372 | return; | |
373 | } | |
374 | ||
375 | #ifdef HAVE_MKNOD | |
376 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 377 | if (statret != 0 || |
2f03f956 | 378 | st.st_mode != file->mode || |
3915fd75 | 379 | st.st_rdev != file->u.rdev) { |
2f03f956 AT |
380 | delete_file(fname); |
381 | if (verbose > 2) | |
382 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", | |
728d0922 WD |
383 | fname,(int)file->mode,(int)file->u.rdev); |
384 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { | |
ea42541f WD |
385 | rprintf(FERROR, "mknod %s failed: %s\n", |
386 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
387 | } else { |
388 | set_perms(fname,file,NULL,0); | |
389 | if (verbose) | |
390 | rprintf(FINFO,"%s\n",fname); | |
391 | } | |
392 | } else { | |
393 | set_perms(fname,file,&st,1); | |
394 | } | |
395 | return; | |
396 | } | |
397 | #endif | |
398 | ||
6dff5992 | 399 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 400 | return; |
2f03f956 AT |
401 | |
402 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 403 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
404 | return; |
405 | } | |
406 | ||
375a4556 DD |
407 | fnamecmp = fname; |
408 | ||
c338460d | 409 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
410 | /* try the file at compare_dest instead */ |
411 | int saveerrno = errno; | |
248ed45f | 412 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
375a4556 DD |
413 | statret = link_stat(fnamecmpbuf,&st); |
414 | if (!S_ISREG(st.st_mode)) | |
415 | statret = -1; | |
416 | if (statret == -1) | |
417 | errno = saveerrno; | |
59c95e42 DD |
418 | #if HAVE_LINK |
419 | else if (link_dest && !dry_run) { | |
420 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 421 | if (verbose > 0) { |
59c95e42 | 422 | rprintf(FINFO,"link %s => %s : %s\n", |
e7bc9b64 | 423 | fnamecmpbuf, fname, |
59c95e42 | 424 | strerror(errno)); |
e7bc9b64 | 425 | } |
59c95e42 DD |
426 | } |
427 | fnamecmp = fnamecmpbuf; | |
428 | } | |
429 | #endif | |
375a4556 DD |
430 | else |
431 | fnamecmp = fnamecmpbuf; | |
432 | } | |
433 | ||
2f03f956 | 434 | if (statret == -1) { |
6dff5992 WD |
435 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
436 | return; | |
2f03f956 AT |
437 | if (errno == ENOENT) { |
438 | write_int(f_out,i); | |
fc0257c9 | 439 | if (!dry_run) write_sum_head(f_out, NULL); |
ea42541f WD |
440 | } else if (verbose > 1) { |
441 | rprintf(FERROR, | |
442 | "recv_generator: failed to open %s: %s\n", | |
443 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
444 | } |
445 | return; | |
446 | } | |
447 | ||
448 | if (!S_ISREG(st.st_mode)) { | |
449 | if (delete_file(fname) != 0) { | |
450 | return; | |
451 | } | |
452 | ||
453 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
454 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
455 | return; | |
2f03f956 | 456 | write_int(f_out,i); |
fc0257c9 | 457 | if (!dry_run) write_sum_head(f_out, NULL); |
2f03f956 AT |
458 | return; |
459 | } | |
460 | ||
2cda2560 | 461 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
462 | if (verbose > 1) |
463 | rprintf(FINFO,"%s exists\n",fname); | |
464 | return; | |
2cda2560 | 465 | } |
3d6feada | 466 | |
5b56cc19 | 467 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
468 | if (verbose > 1) |
469 | rprintf(FINFO,"%s is newer\n",fname); | |
470 | return; | |
471 | } | |
472 | ||
473 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 DD |
474 | if (fnamecmp == fname) |
475 | set_perms(fname,file,&st,1); | |
2f03f956 AT |
476 | return; |
477 | } | |
478 | ||
479 | if (dry_run) { | |
480 | write_int(f_out,i); | |
481 | return; | |
482 | } | |
483 | ||
bceec82f | 484 | if (disable_deltas_p()) { |
2f03f956 | 485 | write_int(f_out,i); |
fc0257c9 | 486 | write_sum_head(f_out, NULL); |
2f03f956 AT |
487 | return; |
488 | } | |
489 | ||
2cda2560 | 490 | /* open the file */ |
8c9fd200 | 491 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
492 | |
493 | if (fd == -1) { | |
ea42541f WD |
494 | rprintf(FERROR, "failed to open %s, continuing: %s\n", |
495 | full_fname(fnamecmp), strerror(errno)); | |
60be6acf | 496 | /* pretend the file didn't exist */ |
6dff5992 WD |
497 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
498 | return; | |
60be6acf | 499 | write_int(f_out,i); |
fc0257c9 | 500 | write_sum_head(f_out, NULL); |
2f03f956 AT |
501 | return; |
502 | } | |
503 | ||
968c8030 WD |
504 | if (st.st_size > 0) |
505 | mapbuf = map_file(fd,st.st_size); | |
506 | else | |
507 | mapbuf = NULL; | |
2f03f956 | 508 | |
dfd5ba6a WD |
509 | if (verbose > 3) { |
510 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
511 | (double)st.st_size); | |
512 | } | |
2f03f956 | 513 | |
2f03f956 | 514 | if (verbose > 2) |
80605142 | 515 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
516 | |
517 | write_int(f_out,i); | |
968c8030 | 518 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
519 | |
520 | close(fd); | |
968c8030 | 521 | if (mapbuf) unmap_file(mapbuf); |
2f03f956 AT |
522 | } |
523 | ||
524 | ||
b9b15fb1 | 525 | void generate_files(int f, struct file_list *flist, char *local_name) |
2f03f956 AT |
526 | { |
527 | int i; | |
528 | int phase=0; | |
968c8030 | 529 | char fbuf[MAXPATHLEN]; |
2f03f956 | 530 | |
45e08edb WD |
531 | if (verbose > 2) { |
532 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
533 | (long)getpid(), flist->count); | |
534 | } | |
2f03f956 | 535 | |
3e7053ac MP |
536 | if (verbose >= 2) { |
537 | rprintf(FINFO, | |
2cda2560 | 538 | disable_deltas_p() |
3e7053ac MP |
539 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
540 | : "delta transmission enabled\n"); | |
541 | } | |
2cda2560 | 542 | |
a57873b7 AT |
543 | /* we expect to just sit around now, so don't exit on a |
544 | timeout. If we really get a timeout then the other process should | |
545 | exit */ | |
546 | io_timeout = 0; | |
547 | ||
2f03f956 AT |
548 | for (i = 0; i < flist->count; i++) { |
549 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 550 | struct file_struct copy; |
2f03f956 | 551 | |
dfd5ba6a WD |
552 | if (!file->basename) |
553 | continue; | |
2f03f956 AT |
554 | /* we need to ensure that any directories we create have writeable |
555 | permissions initially so that we can create the files within | |
556 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
557 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
558 | copy = *file; | |
2cda2560 WD |
559 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
560 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
561 | copy.mode |= S_IWUSR; /* user write */ |
562 | file = © | |
2f03f956 AT |
563 | } |
564 | ||
3fef5364 WD |
565 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
566 | file, i, f); | |
2f03f956 AT |
567 | } |
568 | ||
569 | phase++; | |
570 | csum_length = SUM_LENGTH; | |
571 | ignore_times=1; | |
572 | ||
573 | if (verbose > 2) | |
574 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
575 | ||
576 | write_int(f,-1); | |
577 | ||
bc63ae3f S |
578 | /* files can cycle through the system more than once |
579 | * to catch initial checksum errors */ | |
b9b15fb1 | 580 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 581 | struct file_struct *file = flist->files[i]; |
3fef5364 WD |
582 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
583 | file, i, f); | |
bc63ae3f | 584 | } |
2f03f956 | 585 | |
bc63ae3f S |
586 | phase++; |
587 | if (verbose > 2) | |
588 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 589 | |
bc63ae3f | 590 | write_int(f,-1); |
6dff5992 WD |
591 | |
592 | if (preserve_hard_links) | |
593 | do_hard_links(); | |
594 | ||
595 | /* now we need to fix any directory permissions that were | |
596 | * modified during the transfer */ | |
597 | for (i = 0; i < flist->count; i++) { | |
598 | struct file_struct *file = flist->files[i]; | |
599 | if (!file->basename || !S_ISDIR(file->mode)) continue; | |
600 | recv_generator(local_name ? local_name : f_name(file), | |
601 | file, i, -1); | |
602 | } | |
603 | ||
604 | if (verbose > 2) | |
605 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 606 | } |