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; | |
5774786f | 49 | extern int list_only; |
b9f592fb | 50 | extern int read_batch; |
5774786f WD |
51 | extern int only_existing; |
52 | extern int orig_umask; | |
53 | extern int safe_symlinks; | |
ec8290c8 | 54 | extern unsigned int block_size; |
efd5ee57 | 55 | extern unsigned int max_map_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 | 62 | { |
cc1e997d | 63 | if (st->st_size != file->length) |
84acca07 | 64 | return 0; |
59c95e42 | 65 | if (link_dest) { |
e7bc9b64 | 66 | if (preserve_perms |
67e78a82 | 67 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
84acca07 | 68 | return 0; |
bb24028f | 69 | |
6744b62d | 70 | if (am_root && preserve_uid && st->st_uid != file->uid) |
84acca07 | 71 | return 0; |
bb24028f | 72 | |
a60e2dca S |
73 | if (preserve_gid && file->gid != GID_NONE |
74 | && st->st_gid != file->gid) | |
84acca07 | 75 | return 0; |
59c95e42 DD |
76 | } |
77 | ||
2cda2560 | 78 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
79 | of the file time to determine whether to sync */ |
80 | if (always_checksum && S_ISREG(st->st_mode)) { | |
81 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
82 | char fnamecmpdest[MAXPATHLEN]; |
83 | ||
84 | if (compare_dest != NULL) { | |
85 | if (access(fname, 0) != 0) { | |
248ed45f WD |
86 | pathjoin(fnamecmpdest, sizeof fnamecmpdest, |
87 | compare_dest, fname); | |
60c8d7bc DD |
88 | fname = fnamecmpdest; |
89 | } | |
90 | } | |
2f03f956 | 91 | file_checksum(fname,sum,st->st_size); |
728d0922 | 92 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
84acca07 | 93 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
94 | } |
95 | ||
cc1e997d | 96 | if (size_only) |
84acca07 | 97 | return 1; |
2f03f956 | 98 | |
cc1e997d | 99 | if (ignore_times) |
84acca07 | 100 | return 0; |
cc1e997d | 101 | |
84acca07 | 102 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
103 | } |
104 | ||
105 | ||
2f03f956 | 106 | /* |
0e36d9da | 107 | * NULL sum_struct means we have no checksums |
195bd906 | 108 | */ |
fc0257c9 | 109 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 110 | { |
fc0257c9 S |
111 | static struct sum_struct null_sum; |
112 | ||
c338460d | 113 | if (sum == NULL) |
fc0257c9 S |
114 | sum = &null_sum; |
115 | ||
116 | write_int(f, sum->count); | |
117 | write_int(f, sum->blength); | |
d04e9c51 | 118 | if (protocol_version >= 27) |
fc0257c9 S |
119 | write_int(f, sum->s2length); |
120 | write_int(f, sum->remainder); | |
2f03f956 AT |
121 | } |
122 | ||
ec8290c8 | 123 | /* |
195bd906 | 124 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 125 | * calculating dynamic block and checksum sizes. |
195bd906 | 126 | * |
ec8290c8 | 127 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
128 | * function to encapsulate the logic. |
129 | * | |
130 | * The block size is a rounded square root of file length. | |
131 | * | |
132 | * The checksum size is determined according to: | |
133 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
134 | * provided by Donovan Baarda which gives a probability of rsync | |
135 | * algorithm corrupting data and falling back using the whole md4 | |
136 | * checksums. | |
137 | * | |
138 | * This might be made one of several selectable heuristics. | |
139 | */ | |
bceec82f | 140 | |
423dba8e | 141 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 142 | { |
da9d12f5 WD |
143 | unsigned int blength; |
144 | int s2length; | |
195bd906 S |
145 | uint32 c; |
146 | uint64 l; | |
147 | ||
148 | if (block_size) { | |
149 | blength = block_size; | |
150 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
151 | blength = BLOCK_SIZE; | |
152 | } else { | |
153 | l = len; | |
154 | c = 1; | |
155 | while (l >>= 2) { | |
156 | c <<= 1; | |
157 | } | |
158 | blength = 0; | |
159 | do { | |
160 | blength |= c; | |
fb55e28d | 161 | if (len < (uint64)blength * blength) |
195bd906 S |
162 | blength &= ~c; |
163 | c >>= 1; | |
164 | } while (c >= 8); /* round to multiple of 8 */ | |
165 | blength = MAX(blength, BLOCK_SIZE); | |
efd5ee57 | 166 | blength = MIN(blength, MAX_MAP_SIZE); |
195bd906 | 167 | } |
5126ed1e | 168 | max_map_size = MAX(MAX_MAP_SIZE, blength * 32); |
195bd906 | 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 | 206 | |
80605142 WD |
207 | /* |
208 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 209 | * |
80605142 WD |
210 | * Generate approximately one checksum every block_len bytes. |
211 | */ | |
9774cc33 | 212 | static void generate_and_send_sums(struct map_struct *buf, OFF_T len, int f_out) |
2f03f956 | 213 | { |
80605142 WD |
214 | size_t i; |
215 | struct sum_struct sum; | |
2f03f956 AT |
216 | OFF_T offset = 0; |
217 | ||
423dba8e | 218 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 219 | |
fc0257c9 | 220 | write_sum_head(f_out, &sum); |
2f03f956 | 221 | |
80605142 | 222 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 223 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 224 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
225 | uint32 sum1 = get_checksum1(map, n1); |
226 | char sum2[SUM_LENGTH]; | |
2f03f956 | 227 | |
80605142 | 228 | get_checksum2(map, n1, sum2); |
2f03f956 | 229 | |
80605142 | 230 | if (verbose > 3) { |
e66dfd18 | 231 | rprintf(FINFO, |
0e36d9da WD |
232 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
233 | (double)i, (double)offset, n1, | |
234 | (unsigned long)sum1); | |
80605142 WD |
235 | } |
236 | write_int(f_out, sum1); | |
fc0257c9 | 237 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
238 | len -= n1; |
239 | offset += n1; | |
240 | } | |
2f03f956 AT |
241 | } |
242 | ||
243 | ||
ef1aa910 | 244 | |
fd322eef | 245 | /* |
420ef2c4 | 246 | * Acts on file number @p i from @p flist, whose name is @p fname. |
ef1aa910 MP |
247 | * |
248 | * First fixes up permissions, then generates checksums for the file. | |
249 | * | |
420ef2c4 MP |
250 | * @note This comment was added later by mbp who was trying to work it |
251 | * out. It might be wrong. | |
fd322eef WD |
252 | */ |
253 | static void recv_generator(char *fname, struct file_struct *file, int i, | |
254 | int f_out) | |
2cda2560 | 255 | { |
2f03f956 AT |
256 | int fd; |
257 | STRUCT_STAT st; | |
968c8030 | 258 | struct map_struct *mapbuf; |
2f03f956 | 259 | int statret; |
375a4556 DD |
260 | char *fnamecmp; |
261 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 262 | |
dfd5ba6a WD |
263 | if (list_only) |
264 | return; | |
2f03f956 AT |
265 | |
266 | if (verbose > 2) | |
267 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
268 | ||
97f9dcae WD |
269 | if (server_exclude_list.head |
270 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
271 | S_ISDIR(file->mode)) < 0) { |
272 | if (verbose) { | |
273 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
274 | fname); | |
275 | } | |
97f9dcae | 276 | return; |
3e35c34b | 277 | } |
97f9dcae | 278 | |
6218c7bf | 279 | statret = link_stat(fname, &st, keep_dirlinks && S_ISDIR(file->mode)); |
63787382 | 280 | |
1347d512 AT |
281 | if (only_existing && statret == -1 && errno == ENOENT) { |
282 | /* we only want to update existing files */ | |
3e35c34b WD |
283 | if (verbose > 1) |
284 | rprintf(FINFO, "not creating new file \"%s\"\n", fname); | |
1347d512 AT |
285 | return; |
286 | } | |
287 | ||
2cda2560 WD |
288 | if (statret == 0 && |
289 | !preserve_perms && | |
4df9f368 AT |
290 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
291 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
292 | * permissions then act as though the remote end sent |
293 | * us the file permissions we already have */ | |
67e78a82 WD |
294 | file->mode = (file->mode & ~CHMOD_BITS) |
295 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
296 | } |
297 | ||
2f03f956 | 298 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
299 | /* The file to be received is a directory, so we need |
300 | * to prepare appropriately. If there is already a | |
301 | * file of that name and it is *not* a directory, then | |
302 | * we need to delete it. If it doesn't exist, then | |
303 | * recursively create it. */ | |
304 | ||
ec8290c8 WD |
305 | if (dry_run) |
306 | return; /* TODO: causes inaccuracies -- fix */ | |
2f03f956 | 307 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 308 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
309 | rsyserr(FERROR, errno, |
310 | "recv_generator: unlink %s to make room for directory", | |
311 | full_fname(fname)); | |
2f03f956 AT |
312 | return; |
313 | } | |
314 | statret = -1; | |
315 | } | |
316 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
317 | if (!(relative_paths && errno == ENOENT |
318 | && create_directory_path(fname, orig_umask) == 0 | |
319 | && do_mkdir(fname, file->mode) == 0)) { | |
320 | rsyserr(FERROR, errno, | |
321 | "recv_generator: mkdir %s failed", | |
322 | full_fname(fname)); | |
2f03f956 AT |
323 | } |
324 | } | |
716e73d4 WD |
325 | /* f_out is set to -1 when doing final directory-permission |
326 | * and modification-time repair. */ | |
327 | if (set_perms(fname, file, statret ? NULL : &st, 0) | |
328 | && 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) { |
c41b52c4 WD |
353 | set_perms(fname, file, &st, |
354 | PERMS_REPORT); | |
2f03f956 AT |
355 | return; |
356 | } | |
2cda2560 | 357 | } |
85d4d142 MP |
358 | /* Not a symlink, so delete whatever's |
359 | * already there and put a new symlink | |
2cda2560 | 360 | * in place. */ |
4b3977bf | 361 | delete_file(fname); |
2f03f956 | 362 | } |
728d0922 | 363 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 WD |
364 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
365 | full_fname(fname), file->u.link); | |
2f03f956 AT |
366 | } else { |
367 | set_perms(fname,file,NULL,0); | |
368 | if (verbose) { | |
728d0922 | 369 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
370 | } |
371 | } | |
372 | #endif | |
373 | return; | |
374 | } | |
375 | ||
376 | #ifdef HAVE_MKNOD | |
377 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 378 | if (statret != 0 || |
2f03f956 | 379 | st.st_mode != file->mode || |
3915fd75 | 380 | st.st_rdev != file->u.rdev) { |
2f03f956 | 381 | delete_file(fname); |
d62bcc17 | 382 | if (verbose > 2) { |
2f03f956 | 383 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
728d0922 | 384 | fname,(int)file->mode,(int)file->u.rdev); |
d62bcc17 | 385 | } |
728d0922 | 386 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
387 | rsyserr(FERROR, errno, "mknod %s failed", |
388 | full_fname(fname)); | |
2f03f956 AT |
389 | } else { |
390 | set_perms(fname,file,NULL,0); | |
391 | if (verbose) | |
392 | rprintf(FINFO,"%s\n",fname); | |
393 | } | |
394 | } else { | |
c41b52c4 | 395 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
396 | } |
397 | return; | |
398 | } | |
399 | #endif | |
400 | ||
d7142e23 WD |
401 | if (read_batch) |
402 | return; | |
403 | ||
6dff5992 | 404 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 405 | return; |
2f03f956 AT |
406 | |
407 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 408 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
409 | return; |
410 | } | |
411 | ||
375a4556 DD |
412 | fnamecmp = fname; |
413 | ||
c338460d | 414 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
415 | /* try the file at compare_dest instead */ |
416 | int saveerrno = errno; | |
248ed45f | 417 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
6218c7bf | 418 | statret = link_stat(fnamecmpbuf, &st, 0); |
375a4556 DD |
419 | if (!S_ISREG(st.st_mode)) |
420 | statret = -1; | |
421 | if (statret == -1) | |
422 | errno = saveerrno; | |
59c95e42 DD |
423 | #if HAVE_LINK |
424 | else if (link_dest && !dry_run) { | |
425 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 426 | if (verbose > 0) { |
d62bcc17 WD |
427 | rsyserr(FINFO, errno, "link %s => %s", |
428 | fnamecmpbuf, fname); | |
e7bc9b64 | 429 | } |
59c95e42 DD |
430 | } |
431 | fnamecmp = fnamecmpbuf; | |
432 | } | |
433 | #endif | |
375a4556 DD |
434 | else |
435 | fnamecmp = fnamecmpbuf; | |
436 | } | |
437 | ||
2f03f956 | 438 | if (statret == -1) { |
6dff5992 WD |
439 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
440 | return; | |
2f03f956 AT |
441 | if (errno == ENOENT) { |
442 | write_int(f_out,i); | |
ec8290c8 WD |
443 | if (!dry_run) |
444 | write_sum_head(f_out, NULL); | |
ea42541f | 445 | } else if (verbose > 1) { |
d62bcc17 WD |
446 | rsyserr(FERROR, errno, |
447 | "recv_generator: failed to open %s", | |
448 | full_fname(fname)); | |
2f03f956 AT |
449 | } |
450 | return; | |
451 | } | |
452 | ||
453 | if (!S_ISREG(st.st_mode)) { | |
454 | if (delete_file(fname) != 0) { | |
455 | return; | |
456 | } | |
457 | ||
458 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
459 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
460 | return; | |
2f03f956 | 461 | write_int(f_out,i); |
ec8290c8 WD |
462 | if (!dry_run) |
463 | write_sum_head(f_out, NULL); | |
2f03f956 AT |
464 | return; |
465 | } | |
466 | ||
2cda2560 | 467 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
468 | if (verbose > 1) |
469 | rprintf(FINFO,"%s exists\n",fname); | |
470 | return; | |
2cda2560 | 471 | } |
3d6feada | 472 | |
d3a4375f WD |
473 | if (update_only && fnamecmp == fname |
474 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { | |
2f03f956 AT |
475 | if (verbose > 1) |
476 | rprintf(FINFO,"%s is newer\n",fname); | |
477 | return; | |
478 | } | |
479 | ||
84acca07 | 480 | if (skip_file(fname, file, &st)) { |
bd4ed7f7 | 481 | if (fnamecmp == fname) |
c41b52c4 | 482 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
483 | return; |
484 | } | |
485 | ||
486 | if (dry_run) { | |
487 | write_int(f_out,i); | |
488 | return; | |
489 | } | |
490 | ||
f38bd4a0 | 491 | if (whole_file > 0) { |
2f03f956 | 492 | write_int(f_out,i); |
fc0257c9 | 493 | write_sum_head(f_out, NULL); |
2f03f956 AT |
494 | return; |
495 | } | |
496 | ||
2cda2560 | 497 | /* open the file */ |
8c9fd200 | 498 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
499 | |
500 | if (fd == -1) { | |
d62bcc17 WD |
501 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
502 | full_fname(fnamecmp)); | |
60be6acf | 503 | /* pretend the file didn't exist */ |
6dff5992 WD |
504 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
505 | return; | |
60be6acf | 506 | write_int(f_out,i); |
fc0257c9 | 507 | write_sum_head(f_out, NULL); |
2f03f956 AT |
508 | return; |
509 | } | |
510 | ||
968c8030 WD |
511 | if (st.st_size > 0) |
512 | mapbuf = map_file(fd,st.st_size); | |
513 | else | |
514 | mapbuf = NULL; | |
2f03f956 | 515 | |
dfd5ba6a WD |
516 | if (verbose > 3) { |
517 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
518 | (double)st.st_size); | |
519 | } | |
2f03f956 | 520 | |
2f03f956 | 521 | if (verbose > 2) |
80605142 | 522 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
523 | |
524 | write_int(f_out,i); | |
968c8030 | 525 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
526 | |
527 | close(fd); | |
ec8290c8 WD |
528 | if (mapbuf) |
529 | unmap_file(mapbuf); | |
2f03f956 AT |
530 | } |
531 | ||
532 | ||
7daccb8e | 533 | void generate_files(int f_out, struct file_list *flist, char *local_name) |
2f03f956 AT |
534 | { |
535 | int i; | |
e1f67417 | 536 | int phase = 0; |
968c8030 | 537 | char fbuf[MAXPATHLEN]; |
2f03f956 | 538 | |
45e08edb WD |
539 | if (verbose > 2) { |
540 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
541 | (long)getpid(), flist->count); | |
542 | } | |
2f03f956 | 543 | |
3e7053ac MP |
544 | if (verbose >= 2) { |
545 | rprintf(FINFO, | |
f38bd4a0 | 546 | whole_file > 0 |
3e7053ac MP |
547 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
548 | : "delta transmission enabled\n"); | |
549 | } | |
2cda2560 | 550 | |
a57873b7 AT |
551 | /* we expect to just sit around now, so don't exit on a |
552 | timeout. If we really get a timeout then the other process should | |
553 | exit */ | |
554 | io_timeout = 0; | |
555 | ||
2f03f956 AT |
556 | for (i = 0; i < flist->count; i++) { |
557 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 558 | struct file_struct copy; |
2f03f956 | 559 | |
dfd5ba6a WD |
560 | if (!file->basename) |
561 | continue; | |
2f03f956 AT |
562 | /* we need to ensure that any directories we create have writeable |
563 | permissions initially so that we can create the files within | |
564 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
565 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
566 | copy = *file; | |
2cda2560 WD |
567 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
568 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
569 | copy.mode |= S_IWUSR; /* user write */ |
570 | file = © | |
2f03f956 AT |
571 | } |
572 | ||
3fef5364 | 573 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 574 | file, i, f_out); |
2f03f956 AT |
575 | } |
576 | ||
577 | phase++; | |
578 | csum_length = SUM_LENGTH; | |
e1f67417 | 579 | ignore_times = 1; |
2f03f956 AT |
580 | |
581 | if (verbose > 2) | |
582 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
583 | ||
7daccb8e | 584 | write_int(f_out, -1); |
2f03f956 | 585 | |
bc63ae3f S |
586 | /* files can cycle through the system more than once |
587 | * to catch initial checksum errors */ | |
b9b15fb1 | 588 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 589 | struct file_struct *file = flist->files[i]; |
3fef5364 | 590 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 591 | file, i, f_out); |
bc63ae3f | 592 | } |
2f03f956 | 593 | |
bc63ae3f S |
594 | phase++; |
595 | if (verbose > 2) | |
596 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 597 | |
7daccb8e | 598 | write_int(f_out, -1); |
6dff5992 WD |
599 | |
600 | if (preserve_hard_links) | |
601 | do_hard_links(); | |
602 | ||
603 | /* now we need to fix any directory permissions that were | |
604 | * modified during the transfer */ | |
605 | for (i = 0; i < flist->count; i++) { | |
606 | struct file_struct *file = flist->files[i]; | |
ec8290c8 WD |
607 | if (!file->basename || !S_ISDIR(file->mode)) |
608 | continue; | |
6dff5992 WD |
609 | recv_generator(local_name ? local_name : f_name(file), |
610 | file, i, -1); | |
611 | } | |
612 | ||
613 | if (verbose > 2) | |
614 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 615 | } |