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; | |
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; | |
e610e50f | 48 | extern int read_batch; |
5774786f WD |
49 | extern int write_batch; |
50 | extern int list_only; | |
51 | extern int only_existing; | |
52 | extern int orig_umask; | |
53 | extern int safe_symlinks; | |
2f03f956 | 54 | |
97f9dcae WD |
55 | extern struct exclude_list_struct server_exclude_list; |
56 | ||
2f03f956 AT |
57 | |
58 | /* choose whether to skip a particular file */ | |
dfd5ba6a | 59 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 AT |
60 | { |
61 | if (st->st_size != file->length) { | |
62 | return 0; | |
63 | } | |
59c95e42 | 64 | if (link_dest) { |
e7bc9b64 | 65 | if (preserve_perms |
67e78a82 | 66 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
bb24028f S |
67 | return 0; |
68 | ||
6744b62d | 69 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 70 | return 0; |
bb24028f | 71 | |
a60e2dca S |
72 | if (preserve_gid && file->gid != GID_NONE |
73 | && st->st_gid != file->gid) | |
59c95e42 | 74 | return 0; |
59c95e42 DD |
75 | } |
76 | ||
2cda2560 | 77 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
78 | of the file time to determine whether to sync */ |
79 | if (always_checksum && S_ISREG(st->st_mode)) { | |
80 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
81 | char fnamecmpdest[MAXPATHLEN]; |
82 | ||
83 | if (compare_dest != NULL) { | |
84 | if (access(fname, 0) != 0) { | |
248ed45f WD |
85 | pathjoin(fnamecmpdest, sizeof fnamecmpdest, |
86 | compare_dest, fname); | |
60c8d7bc DD |
87 | fname = fnamecmpdest; |
88 | } | |
89 | } | |
2f03f956 | 90 | file_checksum(fname,sum,st->st_size); |
728d0922 | 91 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
4499c0ee | 92 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
93 | } |
94 | ||
f83f0548 AT |
95 | if (size_only) { |
96 | return 1; | |
97 | } | |
98 | ||
2f03f956 AT |
99 | if (ignore_times) { |
100 | return 0; | |
101 | } | |
102 | ||
5b56cc19 | 103 | return (cmp_modtime(st->st_mtime,file->modtime) == 0); |
2f03f956 AT |
104 | } |
105 | ||
106 | ||
2f03f956 | 107 | /* |
0e36d9da | 108 | * NULL sum_struct means we have no checksums |
195bd906 | 109 | */ |
fc0257c9 | 110 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 111 | { |
fc0257c9 S |
112 | static struct sum_struct null_sum; |
113 | ||
c338460d | 114 | if (sum == NULL) |
fc0257c9 S |
115 | sum = &null_sum; |
116 | ||
117 | write_int(f, sum->count); | |
118 | write_int(f, sum->blength); | |
d04e9c51 | 119 | if (protocol_version >= 27) |
fc0257c9 S |
120 | write_int(f, sum->s2length); |
121 | write_int(f, sum->remainder); | |
2f03f956 AT |
122 | } |
123 | ||
195bd906 S |
124 | /* |
125 | * set (initialize) the size entries in the per-file sum_struct | |
126 | * calulating dynamic block ans checksum sizes. | |
127 | * | |
128 | * This is only called from generate_and_send_sums() but is a seperate | |
129 | * function to encapsulate the logic. | |
130 | * | |
131 | * The block size is a rounded square root of file length. | |
132 | * | |
133 | * The checksum size is determined according to: | |
134 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
135 | * provided by Donovan Baarda which gives a probability of rsync | |
136 | * algorithm corrupting data and falling back using the whole md4 | |
137 | * checksums. | |
138 | * | |
139 | * This might be made one of several selectable heuristics. | |
140 | */ | |
bceec82f | 141 | |
423dba8e | 142 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 143 | { |
da9d12f5 WD |
144 | extern unsigned int block_size; |
145 | unsigned int blength; | |
146 | int s2length; | |
195bd906 S |
147 | uint32 c; |
148 | uint64 l; | |
149 | ||
150 | if (block_size) { | |
151 | blength = block_size; | |
152 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
153 | blength = BLOCK_SIZE; | |
154 | } else { | |
155 | l = len; | |
156 | c = 1; | |
157 | while (l >>= 2) { | |
158 | c <<= 1; | |
159 | } | |
160 | blength = 0; | |
161 | do { | |
162 | blength |= c; | |
fb55e28d | 163 | if (len < (uint64)blength * blength) |
195bd906 S |
164 | blength &= ~c; |
165 | c >>= 1; | |
166 | } while (c >= 8); /* round to multiple of 8 */ | |
167 | blength = MAX(blength, BLOCK_SIZE); | |
168 | } | |
169 | ||
d04e9c51 | 170 | if (protocol_version < 27) { |
195bd906 S |
171 | s2length = csum_length; |
172 | } else if (csum_length == SUM_LENGTH) { | |
173 | s2length = SUM_LENGTH; | |
174 | } else { | |
da9d12f5 | 175 | int b = BLOCKSUM_BIAS; |
195bd906 S |
176 | l = len; |
177 | while (l >>= 1) { | |
178 | b += 2; | |
179 | } | |
180 | c = blength; | |
181 | while (c >>= 1 && b) { | |
182 | b--; | |
183 | } | |
184 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
185 | * subtract rollsum, | |
186 | * round up | |
187 | * --optimize in compiler-- | |
188 | */ | |
189 | s2length = MAX(s2length, csum_length); | |
190 | s2length = MIN(s2length, SUM_LENGTH); | |
191 | } | |
192 | ||
193 | sum->flength = len; | |
194 | sum->blength = blength; | |
195 | sum->s2length = s2length; | |
196 | sum->count = (len + (blength - 1)) / blength; | |
197 | sum->remainder = (len % blength); | |
198 | ||
199 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
200 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
201 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 202 | sum->s2length, (double)sum->flength); |
195bd906 S |
203 | } |
204 | } | |
80605142 | 205 | |
bceec82f MP |
206 | /** |
207 | * Perhaps we want to just send an empty checksum set for this file, | |
208 | * which will force the whole thing to be literally transferred. | |
209 | * | |
210 | * When do we do this? If the user's explicitly said they | |
211 | * want the whole thing, or if { they haven't explicitly | |
212 | * requested a delta, and it's local but not batch mode.} | |
213 | * | |
214 | * Whew. */ | |
215 | static BOOL disable_deltas_p(void) | |
216 | { | |
2cda2560 | 217 | if (whole_file > 0) |
bceec82f | 218 | return True; |
935c6417 | 219 | if (whole_file == 0 || write_batch || read_batch) |
bceec82f | 220 | return False; |
2cda2560 | 221 | return local_server; |
bceec82f MP |
222 | } |
223 | ||
224 | ||
80605142 WD |
225 | /* |
226 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 227 | * |
80605142 WD |
228 | * Generate approximately one checksum every block_len bytes. |
229 | */ | |
2990e06f | 230 | static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out) |
2f03f956 | 231 | { |
80605142 WD |
232 | size_t i; |
233 | struct sum_struct sum; | |
2f03f956 AT |
234 | OFF_T offset = 0; |
235 | ||
423dba8e | 236 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 237 | |
fc0257c9 | 238 | write_sum_head(f_out, &sum); |
2f03f956 | 239 | |
80605142 | 240 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 241 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 242 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
243 | uint32 sum1 = get_checksum1(map, n1); |
244 | char sum2[SUM_LENGTH]; | |
2f03f956 | 245 | |
80605142 | 246 | get_checksum2(map, n1, sum2); |
2f03f956 | 247 | |
80605142 | 248 | if (verbose > 3) { |
e66dfd18 | 249 | rprintf(FINFO, |
0e36d9da WD |
250 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
251 | (double)i, (double)offset, n1, | |
252 | (unsigned long)sum1); | |
80605142 WD |
253 | } |
254 | write_int(f_out, sum1); | |
fc0257c9 | 255 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
256 | len -= n1; |
257 | offset += n1; | |
258 | } | |
2f03f956 AT |
259 | } |
260 | ||
261 | ||
ef1aa910 | 262 | |
420ef2c4 MP |
263 | /** |
264 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
265 | * |
266 | * First fixes up permissions, then generates checksums for the file. | |
267 | * | |
420ef2c4 MP |
268 | * @note This comment was added later by mbp who was trying to work it |
269 | * out. It might be wrong. | |
2cda2560 | 270 | **/ |
dfd5ba6a | 271 | void recv_generator(char *fname, struct file_struct *file, int i, int f_out) |
2cda2560 | 272 | { |
2f03f956 AT |
273 | int fd; |
274 | STRUCT_STAT st; | |
968c8030 | 275 | struct map_struct *mapbuf; |
2f03f956 | 276 | int statret; |
375a4556 DD |
277 | char *fnamecmp; |
278 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 279 | |
dfd5ba6a WD |
280 | if (list_only) |
281 | return; | |
2f03f956 AT |
282 | |
283 | if (verbose > 2) | |
284 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
285 | ||
97f9dcae WD |
286 | if (server_exclude_list.head |
287 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
288 | S_ISDIR(file->mode)) < 0) { |
289 | if (verbose) { | |
290 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
291 | fname); | |
292 | } | |
97f9dcae | 293 | return; |
3e35c34b | 294 | } |
97f9dcae | 295 | |
2f03f956 | 296 | statret = link_stat(fname,&st); |
63787382 | 297 | |
1347d512 AT |
298 | if (only_existing && statret == -1 && errno == ENOENT) { |
299 | /* we only want to update existing files */ | |
3e35c34b WD |
300 | if (verbose > 1) |
301 | rprintf(FINFO, "not creating new file \"%s\"\n", fname); | |
1347d512 AT |
302 | return; |
303 | } | |
304 | ||
2cda2560 WD |
305 | if (statret == 0 && |
306 | !preserve_perms && | |
4df9f368 AT |
307 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
308 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
309 | * permissions then act as though the remote end sent |
310 | * us the file permissions we already have */ | |
67e78a82 WD |
311 | file->mode = (file->mode & ~CHMOD_BITS) |
312 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
313 | } |
314 | ||
2f03f956 | 315 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
316 | /* The file to be received is a directory, so we need |
317 | * to prepare appropriately. If there is already a | |
318 | * file of that name and it is *not* a directory, then | |
319 | * we need to delete it. If it doesn't exist, then | |
320 | * recursively create it. */ | |
321 | ||
85d4d142 | 322 | if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */ |
2f03f956 | 323 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 324 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
325 | rsyserr(FERROR, errno, |
326 | "recv_generator: unlink %s to make room for directory", | |
327 | full_fname(fname)); | |
2f03f956 AT |
328 | return; |
329 | } | |
330 | statret = -1; | |
331 | } | |
332 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
333 | if (!(relative_paths && errno == ENOENT |
334 | && create_directory_path(fname, orig_umask) == 0 | |
335 | && do_mkdir(fname, file->mode) == 0)) { | |
336 | rsyserr(FERROR, errno, | |
337 | "recv_generator: mkdir %s failed", | |
338 | full_fname(fname)); | |
2f03f956 AT |
339 | } |
340 | } | |
2cda2560 | 341 | /* f_out is set to -1 when doing final directory |
de343e3c | 342 | permission and modification time repair */ |
2cda2560 | 343 | if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) |
2f03f956 AT |
344 | rprintf(FINFO,"%s/\n",fname); |
345 | return; | |
346 | } | |
347 | ||
348 | if (preserve_links && S_ISLNK(file->mode)) { | |
349 | #if SUPPORT_LINKS | |
350 | char lnk[MAXPATHLEN]; | |
351 | int l; | |
2f03f956 | 352 | |
728d0922 | 353 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 354 | if (verbose) { |
ea42541f | 355 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 356 | full_fname(fname), file->u.link); |
2f03f956 AT |
357 | } |
358 | return; | |
359 | } | |
360 | if (statret == 0) { | |
361 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
362 | if (l > 0) { | |
363 | lnk[l] = 0; | |
85d4d142 MP |
364 | /* A link already pointing to the |
365 | * right place -- no further action | |
366 | * required. */ | |
728d0922 | 367 | if (strcmp(lnk,file->u.link) == 0) { |
c41b52c4 WD |
368 | set_perms(fname, file, &st, |
369 | PERMS_REPORT); | |
2f03f956 AT |
370 | return; |
371 | } | |
2cda2560 | 372 | } |
85d4d142 MP |
373 | /* Not a symlink, so delete whatever's |
374 | * already there and put a new symlink | |
2cda2560 | 375 | * in place. */ |
4b3977bf | 376 | delete_file(fname); |
2f03f956 | 377 | } |
728d0922 | 378 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 WD |
379 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
380 | full_fname(fname), file->u.link); | |
2f03f956 AT |
381 | } else { |
382 | set_perms(fname,file,NULL,0); | |
383 | if (verbose) { | |
728d0922 | 384 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
385 | } |
386 | } | |
387 | #endif | |
388 | return; | |
389 | } | |
390 | ||
391 | #ifdef HAVE_MKNOD | |
392 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 393 | if (statret != 0 || |
2f03f956 | 394 | st.st_mode != file->mode || |
3915fd75 | 395 | st.st_rdev != file->u.rdev) { |
2f03f956 | 396 | delete_file(fname); |
d62bcc17 | 397 | if (verbose > 2) { |
2f03f956 | 398 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
728d0922 | 399 | fname,(int)file->mode,(int)file->u.rdev); |
d62bcc17 | 400 | } |
728d0922 | 401 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
402 | rsyserr(FERROR, errno, "mknod %s failed", |
403 | full_fname(fname)); | |
2f03f956 AT |
404 | } else { |
405 | set_perms(fname,file,NULL,0); | |
406 | if (verbose) | |
407 | rprintf(FINFO,"%s\n",fname); | |
408 | } | |
409 | } else { | |
c41b52c4 | 410 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
411 | } |
412 | return; | |
413 | } | |
414 | #endif | |
415 | ||
6dff5992 | 416 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 417 | return; |
2f03f956 AT |
418 | |
419 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 420 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
421 | return; |
422 | } | |
423 | ||
375a4556 DD |
424 | fnamecmp = fname; |
425 | ||
c338460d | 426 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
427 | /* try the file at compare_dest instead */ |
428 | int saveerrno = errno; | |
248ed45f | 429 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
375a4556 DD |
430 | statret = link_stat(fnamecmpbuf,&st); |
431 | if (!S_ISREG(st.st_mode)) | |
432 | statret = -1; | |
433 | if (statret == -1) | |
434 | errno = saveerrno; | |
59c95e42 DD |
435 | #if HAVE_LINK |
436 | else if (link_dest && !dry_run) { | |
437 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 438 | if (verbose > 0) { |
d62bcc17 WD |
439 | rsyserr(FINFO, errno, "link %s => %s", |
440 | fnamecmpbuf, fname); | |
e7bc9b64 | 441 | } |
59c95e42 DD |
442 | } |
443 | fnamecmp = fnamecmpbuf; | |
444 | } | |
445 | #endif | |
375a4556 DD |
446 | else |
447 | fnamecmp = fnamecmpbuf; | |
448 | } | |
449 | ||
2f03f956 | 450 | if (statret == -1) { |
6dff5992 WD |
451 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
452 | return; | |
2f03f956 AT |
453 | if (errno == ENOENT) { |
454 | write_int(f_out,i); | |
fc0257c9 | 455 | if (!dry_run) write_sum_head(f_out, NULL); |
ea42541f | 456 | } else if (verbose > 1) { |
d62bcc17 WD |
457 | rsyserr(FERROR, errno, |
458 | "recv_generator: failed to open %s", | |
459 | full_fname(fname)); | |
2f03f956 AT |
460 | } |
461 | return; | |
462 | } | |
463 | ||
464 | if (!S_ISREG(st.st_mode)) { | |
465 | if (delete_file(fname) != 0) { | |
466 | return; | |
467 | } | |
468 | ||
469 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
470 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
471 | return; | |
2f03f956 | 472 | write_int(f_out,i); |
fc0257c9 | 473 | if (!dry_run) write_sum_head(f_out, NULL); |
2f03f956 AT |
474 | return; |
475 | } | |
476 | ||
2cda2560 | 477 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
478 | if (verbose > 1) |
479 | rprintf(FINFO,"%s exists\n",fname); | |
480 | return; | |
2cda2560 | 481 | } |
3d6feada | 482 | |
5b56cc19 | 483 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
484 | if (verbose > 1) |
485 | rprintf(FINFO,"%s is newer\n",fname); | |
486 | return; | |
487 | } | |
488 | ||
489 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 | 490 | if (fnamecmp == fname) |
c41b52c4 | 491 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
492 | return; |
493 | } | |
494 | ||
495 | if (dry_run) { | |
496 | write_int(f_out,i); | |
497 | return; | |
498 | } | |
499 | ||
bceec82f | 500 | if (disable_deltas_p()) { |
2f03f956 | 501 | write_int(f_out,i); |
fc0257c9 | 502 | write_sum_head(f_out, NULL); |
2f03f956 AT |
503 | return; |
504 | } | |
505 | ||
2cda2560 | 506 | /* open the file */ |
8c9fd200 | 507 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
508 | |
509 | if (fd == -1) { | |
d62bcc17 WD |
510 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
511 | full_fname(fnamecmp)); | |
60be6acf | 512 | /* pretend the file didn't exist */ |
6dff5992 WD |
513 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
514 | return; | |
60be6acf | 515 | write_int(f_out,i); |
fc0257c9 | 516 | write_sum_head(f_out, NULL); |
2f03f956 AT |
517 | return; |
518 | } | |
519 | ||
968c8030 WD |
520 | if (st.st_size > 0) |
521 | mapbuf = map_file(fd,st.st_size); | |
522 | else | |
523 | mapbuf = NULL; | |
2f03f956 | 524 | |
dfd5ba6a WD |
525 | if (verbose > 3) { |
526 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
527 | (double)st.st_size); | |
528 | } | |
2f03f956 | 529 | |
2f03f956 | 530 | if (verbose > 2) |
80605142 | 531 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
532 | |
533 | write_int(f_out,i); | |
968c8030 | 534 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
535 | |
536 | close(fd); | |
968c8030 | 537 | if (mapbuf) unmap_file(mapbuf); |
2f03f956 AT |
538 | } |
539 | ||
540 | ||
b9b15fb1 | 541 | void generate_files(int f, struct file_list *flist, char *local_name) |
2f03f956 AT |
542 | { |
543 | int i; | |
544 | int phase=0; | |
968c8030 | 545 | char fbuf[MAXPATHLEN]; |
2f03f956 | 546 | |
45e08edb WD |
547 | if (verbose > 2) { |
548 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
549 | (long)getpid(), flist->count); | |
550 | } | |
2f03f956 | 551 | |
3e7053ac MP |
552 | if (verbose >= 2) { |
553 | rprintf(FINFO, | |
2cda2560 | 554 | disable_deltas_p() |
3e7053ac MP |
555 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
556 | : "delta transmission enabled\n"); | |
557 | } | |
2cda2560 | 558 | |
a57873b7 AT |
559 | /* we expect to just sit around now, so don't exit on a |
560 | timeout. If we really get a timeout then the other process should | |
561 | exit */ | |
562 | io_timeout = 0; | |
563 | ||
2f03f956 AT |
564 | for (i = 0; i < flist->count; i++) { |
565 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 566 | struct file_struct copy; |
2f03f956 | 567 | |
dfd5ba6a WD |
568 | if (!file->basename) |
569 | continue; | |
2f03f956 AT |
570 | /* we need to ensure that any directories we create have writeable |
571 | permissions initially so that we can create the files within | |
572 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
573 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
574 | copy = *file; | |
2cda2560 WD |
575 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
576 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
577 | copy.mode |= S_IWUSR; /* user write */ |
578 | file = © | |
2f03f956 AT |
579 | } |
580 | ||
3fef5364 WD |
581 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
582 | file, i, f); | |
2f03f956 AT |
583 | } |
584 | ||
585 | phase++; | |
586 | csum_length = SUM_LENGTH; | |
587 | ignore_times=1; | |
588 | ||
589 | if (verbose > 2) | |
590 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
591 | ||
592 | write_int(f,-1); | |
593 | ||
bc63ae3f S |
594 | /* files can cycle through the system more than once |
595 | * to catch initial checksum errors */ | |
b9b15fb1 | 596 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 597 | struct file_struct *file = flist->files[i]; |
3fef5364 WD |
598 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
599 | file, i, f); | |
bc63ae3f | 600 | } |
2f03f956 | 601 | |
bc63ae3f S |
602 | phase++; |
603 | if (verbose > 2) | |
604 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 605 | |
bc63ae3f | 606 | write_int(f,-1); |
6dff5992 WD |
607 | |
608 | if (preserve_hard_links) | |
609 | do_hard_links(); | |
610 | ||
611 | /* now we need to fix any directory permissions that were | |
612 | * modified during the transfer */ | |
613 | for (i = 0; i < flist->count; i++) { | |
614 | struct file_struct *file = flist->files[i]; | |
615 | if (!file->basename || !S_ISDIR(file->mode)) continue; | |
616 | recv_generator(local_name ? local_name : f_name(file), | |
617 | file, i, -1); | |
618 | } | |
619 | ||
620 | if (verbose > 2) | |
621 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 622 | } |