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; |
2f03f956 | 55 | |
97f9dcae WD |
56 | extern struct exclude_list_struct server_exclude_list; |
57 | ||
2f03f956 AT |
58 | |
59 | /* choose whether to skip a particular file */ | |
dfd5ba6a | 60 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 | 61 | { |
cc1e997d | 62 | if (st->st_size != file->length) |
84acca07 | 63 | return 0; |
59c95e42 | 64 | if (link_dest) { |
e7bc9b64 | 65 | if (preserve_perms |
67e78a82 | 66 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
84acca07 | 67 | return 0; |
bb24028f | 68 | |
6744b62d | 69 | if (am_root && preserve_uid && st->st_uid != file->uid) |
84acca07 | 70 | return 0; |
bb24028f | 71 | |
a60e2dca S |
72 | if (preserve_gid && file->gid != GID_NONE |
73 | && st->st_gid != file->gid) | |
84acca07 | 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 |
84acca07 | 92 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
93 | } |
94 | ||
cc1e997d | 95 | if (size_only) |
84acca07 | 96 | return 1; |
2f03f956 | 97 | |
cc1e997d | 98 | if (ignore_times) |
84acca07 | 99 | return 0; |
cc1e997d | 100 | |
84acca07 | 101 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
102 | } |
103 | ||
104 | ||
2f03f956 | 105 | /* |
0e36d9da | 106 | * NULL sum_struct means we have no checksums |
195bd906 | 107 | */ |
fc0257c9 | 108 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 109 | { |
fc0257c9 S |
110 | static struct sum_struct null_sum; |
111 | ||
c338460d | 112 | if (sum == NULL) |
fc0257c9 S |
113 | sum = &null_sum; |
114 | ||
115 | write_int(f, sum->count); | |
116 | write_int(f, sum->blength); | |
d04e9c51 | 117 | if (protocol_version >= 27) |
fc0257c9 S |
118 | write_int(f, sum->s2length); |
119 | write_int(f, sum->remainder); | |
2f03f956 AT |
120 | } |
121 | ||
ec8290c8 | 122 | /* |
195bd906 | 123 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 124 | * calculating dynamic block and checksum sizes. |
195bd906 | 125 | * |
ec8290c8 | 126 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
127 | * function to encapsulate the logic. |
128 | * | |
129 | * The block size is a rounded square root of file length. | |
130 | * | |
131 | * The checksum size is determined according to: | |
132 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
133 | * provided by Donovan Baarda which gives a probability of rsync | |
134 | * algorithm corrupting data and falling back using the whole md4 | |
135 | * checksums. | |
136 | * | |
137 | * This might be made one of several selectable heuristics. | |
138 | */ | |
bceec82f | 139 | |
423dba8e | 140 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 141 | { |
da9d12f5 WD |
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); | |
efd5ee57 | 165 | blength = MIN(blength, MAX_MAP_SIZE); |
195bd906 S |
166 | } |
167 | ||
d04e9c51 | 168 | if (protocol_version < 27) { |
195bd906 S |
169 | s2length = csum_length; |
170 | } else if (csum_length == SUM_LENGTH) { | |
171 | s2length = SUM_LENGTH; | |
172 | } else { | |
da9d12f5 | 173 | int b = BLOCKSUM_BIAS; |
195bd906 S |
174 | l = len; |
175 | while (l >>= 1) { | |
176 | b += 2; | |
177 | } | |
178 | c = blength; | |
179 | while (c >>= 1 && b) { | |
180 | b--; | |
181 | } | |
182 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
183 | * subtract rollsum, | |
184 | * round up | |
185 | * --optimize in compiler-- | |
186 | */ | |
187 | s2length = MAX(s2length, csum_length); | |
188 | s2length = MIN(s2length, SUM_LENGTH); | |
189 | } | |
190 | ||
191 | sum->flength = len; | |
192 | sum->blength = blength; | |
193 | sum->s2length = s2length; | |
194 | sum->count = (len + (blength - 1)) / blength; | |
195 | sum->remainder = (len % blength); | |
196 | ||
197 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
198 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
199 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 200 | sum->s2length, (double)sum->flength); |
195bd906 S |
201 | } |
202 | } | |
80605142 | 203 | |
bceec82f | 204 | |
80605142 WD |
205 | /* |
206 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 207 | * |
80605142 WD |
208 | * Generate approximately one checksum every block_len bytes. |
209 | */ | |
6e45e1dd | 210 | static void generate_and_send_sums(int fd, OFF_T len, int f_out) |
2f03f956 | 211 | { |
80605142 | 212 | size_t i; |
6e45e1dd | 213 | struct map_struct *mapbuf; |
80605142 | 214 | struct sum_struct sum; |
2f03f956 AT |
215 | OFF_T offset = 0; |
216 | ||
423dba8e | 217 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 218 | |
6e45e1dd WD |
219 | if (len > 0) |
220 | mapbuf = map_file(fd, len, sum.blength); | |
221 | else | |
222 | mapbuf = NULL; | |
223 | ||
fc0257c9 | 224 | write_sum_head(f_out, &sum); |
2f03f956 | 225 | |
80605142 | 226 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 227 | unsigned int n1 = MIN(len, sum.blength); |
6e45e1dd | 228 | char *map = map_ptr(mapbuf, offset, n1); |
80605142 WD |
229 | uint32 sum1 = get_checksum1(map, n1); |
230 | char sum2[SUM_LENGTH]; | |
2f03f956 | 231 | |
80605142 | 232 | get_checksum2(map, n1, sum2); |
2f03f956 | 233 | |
80605142 | 234 | if (verbose > 3) { |
e66dfd18 | 235 | rprintf(FINFO, |
0e36d9da WD |
236 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
237 | (double)i, (double)offset, n1, | |
238 | (unsigned long)sum1); | |
80605142 WD |
239 | } |
240 | write_int(f_out, sum1); | |
fc0257c9 | 241 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
242 | len -= n1; |
243 | offset += n1; | |
244 | } | |
6e45e1dd WD |
245 | |
246 | if (mapbuf) | |
247 | unmap_file(mapbuf); | |
2f03f956 AT |
248 | } |
249 | ||
250 | ||
ef1aa910 | 251 | |
fd322eef | 252 | /* |
420ef2c4 | 253 | * Acts on file number @p i from @p flist, whose name is @p fname. |
ef1aa910 MP |
254 | * |
255 | * First fixes up permissions, then generates checksums for the file. | |
256 | * | |
420ef2c4 MP |
257 | * @note This comment was added later by mbp who was trying to work it |
258 | * out. It might be wrong. | |
fd322eef WD |
259 | */ |
260 | static void recv_generator(char *fname, struct file_struct *file, int i, | |
261 | int f_out) | |
2cda2560 | 262 | { |
2f03f956 AT |
263 | int fd; |
264 | STRUCT_STAT st; | |
2f03f956 | 265 | int statret; |
375a4556 DD |
266 | char *fnamecmp; |
267 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 268 | |
dfd5ba6a WD |
269 | if (list_only) |
270 | return; | |
2f03f956 AT |
271 | |
272 | if (verbose > 2) | |
ecc81fce | 273 | rprintf(FINFO, "recv_generator(%s,%d)\n", safe_fname(fname), i); |
2f03f956 | 274 | |
97f9dcae WD |
275 | if (server_exclude_list.head |
276 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
277 | S_ISDIR(file->mode)) < 0) { |
278 | if (verbose) { | |
279 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
ecc81fce | 280 | safe_fname(fname)); |
3e35c34b | 281 | } |
97f9dcae | 282 | return; |
3e35c34b | 283 | } |
97f9dcae | 284 | |
6218c7bf | 285 | statret = link_stat(fname, &st, keep_dirlinks && S_ISDIR(file->mode)); |
63787382 | 286 | |
1347d512 AT |
287 | if (only_existing && statret == -1 && errno == ENOENT) { |
288 | /* we only want to update existing files */ | |
ecc81fce WD |
289 | if (verbose > 1) { |
290 | rprintf(FINFO, "not creating new file \"%s\"\n", | |
291 | safe_fname(fname)); | |
292 | } | |
1347d512 AT |
293 | return; |
294 | } | |
295 | ||
d9b4d267 WD |
296 | if (statret == 0 && !preserve_perms |
297 | && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) { | |
4df9f368 | 298 | /* if the file exists already and we aren't perserving |
2cda2560 WD |
299 | * permissions then act as though the remote end sent |
300 | * us the file permissions we already have */ | |
67e78a82 WD |
301 | file->mode = (file->mode & ~CHMOD_BITS) |
302 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
303 | } |
304 | ||
2f03f956 | 305 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
306 | /* The file to be received is a directory, so we need |
307 | * to prepare appropriately. If there is already a | |
308 | * file of that name and it is *not* a directory, then | |
309 | * we need to delete it. If it doesn't exist, then | |
310 | * recursively create it. */ | |
311 | ||
ec8290c8 WD |
312 | if (dry_run) |
313 | return; /* TODO: causes inaccuracies -- fix */ | |
2f03f956 | 314 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 315 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
316 | rsyserr(FERROR, errno, |
317 | "recv_generator: unlink %s to make room for directory", | |
318 | full_fname(fname)); | |
2f03f956 AT |
319 | return; |
320 | } | |
321 | statret = -1; | |
322 | } | |
323 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
324 | if (!(relative_paths && errno == ENOENT |
325 | && create_directory_path(fname, orig_umask) == 0 | |
326 | && do_mkdir(fname, file->mode) == 0)) { | |
327 | rsyserr(FERROR, errno, | |
328 | "recv_generator: mkdir %s failed", | |
329 | full_fname(fname)); | |
2f03f956 AT |
330 | } |
331 | } | |
716e73d4 WD |
332 | /* f_out is set to -1 when doing final directory-permission |
333 | * and modification-time repair. */ | |
334 | if (set_perms(fname, file, statret ? NULL : &st, 0) | |
335 | && verbose && f_out != -1) | |
ecc81fce | 336 | rprintf(FINFO, "%s/\n", safe_fname(fname)); |
2f03f956 AT |
337 | return; |
338 | } | |
339 | ||
340 | if (preserve_links && S_ISLNK(file->mode)) { | |
341 | #if SUPPORT_LINKS | |
342 | char lnk[MAXPATHLEN]; | |
343 | int l; | |
2f03f956 | 344 | |
728d0922 | 345 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 346 | if (verbose) { |
ea42541f | 347 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 348 | full_fname(fname), file->u.link); |
2f03f956 AT |
349 | } |
350 | return; | |
351 | } | |
352 | if (statret == 0) { | |
353 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
354 | if (l > 0) { | |
355 | lnk[l] = 0; | |
85d4d142 MP |
356 | /* A link already pointing to the |
357 | * right place -- no further action | |
358 | * required. */ | |
728d0922 | 359 | if (strcmp(lnk,file->u.link) == 0) { |
c41b52c4 WD |
360 | set_perms(fname, file, &st, |
361 | PERMS_REPORT); | |
2f03f956 AT |
362 | return; |
363 | } | |
2cda2560 | 364 | } |
85d4d142 MP |
365 | /* Not a symlink, so delete whatever's |
366 | * already there and put a new symlink | |
2cda2560 | 367 | * in place. */ |
4b3977bf | 368 | delete_file(fname); |
2f03f956 | 369 | } |
728d0922 | 370 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 | 371 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
ecc81fce | 372 | full_fname(fname), safe_fname(file->u.link)); |
2f03f956 AT |
373 | } else { |
374 | set_perms(fname,file,NULL,0); | |
375 | if (verbose) { | |
ecc81fce WD |
376 | rprintf(FINFO, "%s -> %s\n", safe_fname(fname), |
377 | safe_fname(file->u.link)); | |
2f03f956 AT |
378 | } |
379 | } | |
380 | #endif | |
381 | return; | |
382 | } | |
383 | ||
384 | #ifdef HAVE_MKNOD | |
385 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 386 | if (statret != 0 || |
2f03f956 | 387 | st.st_mode != file->mode || |
3915fd75 | 388 | st.st_rdev != file->u.rdev) { |
2f03f956 | 389 | delete_file(fname); |
d62bcc17 | 390 | if (verbose > 2) { |
2f03f956 | 391 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
ecc81fce WD |
392 | safe_fname(fname), |
393 | (int)file->mode, (int)file->u.rdev); | |
d62bcc17 | 394 | } |
728d0922 | 395 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
396 | rsyserr(FERROR, errno, "mknod %s failed", |
397 | full_fname(fname)); | |
2f03f956 AT |
398 | } else { |
399 | set_perms(fname,file,NULL,0); | |
ecc81fce WD |
400 | if (verbose) { |
401 | rprintf(FINFO, "%s\n", | |
402 | safe_fname(fname)); | |
403 | } | |
2f03f956 AT |
404 | } |
405 | } else { | |
c41b52c4 | 406 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
407 | } |
408 | return; | |
409 | } | |
410 | #endif | |
411 | ||
6dff5992 | 412 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 413 | return; |
2f03f956 AT |
414 | |
415 | if (!S_ISREG(file->mode)) { | |
ecc81fce WD |
416 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", |
417 | safe_fname(fname)); | |
2f03f956 AT |
418 | return; |
419 | } | |
420 | ||
375a4556 DD |
421 | fnamecmp = fname; |
422 | ||
c338460d | 423 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
424 | /* try the file at compare_dest instead */ |
425 | int saveerrno = errno; | |
248ed45f | 426 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
6218c7bf | 427 | statret = link_stat(fnamecmpbuf, &st, 0); |
375a4556 DD |
428 | if (!S_ISREG(st.st_mode)) |
429 | statret = -1; | |
430 | if (statret == -1) | |
431 | errno = saveerrno; | |
59c95e42 DD |
432 | #if HAVE_LINK |
433 | else if (link_dest && !dry_run) { | |
434 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 435 | if (verbose > 0) { |
d62bcc17 | 436 | rsyserr(FINFO, errno, "link %s => %s", |
ecc81fce | 437 | fnamecmpbuf, safe_fname(fname)); |
e7bc9b64 | 438 | } |
59c95e42 DD |
439 | } |
440 | fnamecmp = fnamecmpbuf; | |
441 | } | |
442 | #endif | |
375a4556 DD |
443 | else |
444 | fnamecmp = fnamecmpbuf; | |
445 | } | |
446 | ||
2f03f956 | 447 | if (statret == -1) { |
6dff5992 WD |
448 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
449 | return; | |
2f03f956 AT |
450 | if (errno == ENOENT) { |
451 | write_int(f_out,i); | |
727b35f6 | 452 | if (!dry_run && !read_batch) |
ec8290c8 | 453 | write_sum_head(f_out, NULL); |
ea42541f | 454 | } else if (verbose > 1) { |
d62bcc17 WD |
455 | rsyserr(FERROR, errno, |
456 | "recv_generator: failed to open %s", | |
457 | full_fname(fname)); | |
2f03f956 AT |
458 | } |
459 | return; | |
460 | } | |
461 | ||
462 | if (!S_ISREG(st.st_mode)) { | |
463 | if (delete_file(fname) != 0) { | |
464 | return; | |
465 | } | |
466 | ||
467 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
468 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
469 | return; | |
2f03f956 | 470 | write_int(f_out,i); |
727b35f6 | 471 | if (!dry_run && !read_batch) |
ec8290c8 | 472 | write_sum_head(f_out, NULL); |
2f03f956 AT |
473 | return; |
474 | } | |
475 | ||
2cda2560 | 476 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada | 477 | if (verbose > 1) |
ecc81fce | 478 | rprintf(FINFO, "%s exists\n", safe_fname(fname)); |
3d6feada | 479 | return; |
2cda2560 | 480 | } |
3d6feada | 481 | |
d3a4375f WD |
482 | if (update_only && fnamecmp == fname |
483 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { | |
2f03f956 | 484 | if (verbose > 1) |
ecc81fce | 485 | rprintf(FINFO, "%s is newer\n", safe_fname(fname)); |
2f03f956 AT |
486 | return; |
487 | } | |
488 | ||
84acca07 | 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 | ||
727b35f6 | 495 | if (dry_run || read_batch) { |
2f03f956 AT |
496 | write_int(f_out,i); |
497 | return; | |
498 | } | |
499 | ||
f38bd4a0 | 500 | if (whole_file > 0) { |
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 | ||
dfd5ba6a | 520 | if (verbose > 3) { |
ecc81fce WD |
521 | rprintf(FINFO, "gen mapped %s of size %.0f\n", |
522 | safe_fname(fnamecmp), (double)st.st_size); | |
dfd5ba6a | 523 | } |
2f03f956 | 524 | |
2f03f956 | 525 | if (verbose > 2) |
80605142 | 526 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
527 | |
528 | write_int(f_out,i); | |
6e45e1dd | 529 | generate_and_send_sums(fd, st.st_size, f_out); |
2f03f956 AT |
530 | |
531 | close(fd); | |
2f03f956 AT |
532 | } |
533 | ||
534 | ||
7daccb8e | 535 | void generate_files(int f_out, struct file_list *flist, char *local_name) |
2f03f956 AT |
536 | { |
537 | int i; | |
e1f67417 | 538 | int phase = 0; |
968c8030 | 539 | char fbuf[MAXPATHLEN]; |
2f03f956 | 540 | |
45e08edb WD |
541 | if (verbose > 2) { |
542 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
543 | (long)getpid(), flist->count); | |
544 | } | |
2f03f956 | 545 | |
3e7053ac MP |
546 | if (verbose >= 2) { |
547 | rprintf(FINFO, | |
f38bd4a0 | 548 | whole_file > 0 |
3e7053ac MP |
549 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
550 | : "delta transmission enabled\n"); | |
551 | } | |
2cda2560 | 552 | |
a57873b7 AT |
553 | /* we expect to just sit around now, so don't exit on a |
554 | timeout. If we really get a timeout then the other process should | |
555 | exit */ | |
556 | io_timeout = 0; | |
557 | ||
2f03f956 AT |
558 | for (i = 0; i < flist->count; i++) { |
559 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 560 | struct file_struct copy; |
2f03f956 | 561 | |
dfd5ba6a WD |
562 | if (!file->basename) |
563 | continue; | |
2f03f956 AT |
564 | /* we need to ensure that any directories we create have writeable |
565 | permissions initially so that we can create the files within | |
566 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
567 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
568 | copy = *file; | |
2cda2560 WD |
569 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
570 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
571 | copy.mode |= S_IWUSR; /* user write */ |
572 | file = © | |
2f03f956 AT |
573 | } |
574 | ||
3fef5364 | 575 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 576 | file, i, f_out); |
2f03f956 AT |
577 | } |
578 | ||
579 | phase++; | |
580 | csum_length = SUM_LENGTH; | |
e1f67417 | 581 | ignore_times = 1; |
2f03f956 AT |
582 | |
583 | if (verbose > 2) | |
584 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
585 | ||
7daccb8e | 586 | write_int(f_out, -1); |
2f03f956 | 587 | |
bc63ae3f S |
588 | /* files can cycle through the system more than once |
589 | * to catch initial checksum errors */ | |
b9b15fb1 | 590 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 591 | struct file_struct *file = flist->files[i]; |
3fef5364 | 592 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 593 | file, i, f_out); |
bc63ae3f | 594 | } |
2f03f956 | 595 | |
bc63ae3f S |
596 | phase++; |
597 | if (verbose > 2) | |
598 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 599 | |
7daccb8e | 600 | write_int(f_out, -1); |
6dff5992 WD |
601 | |
602 | if (preserve_hard_links) | |
603 | do_hard_links(); | |
604 | ||
605 | /* now we need to fix any directory permissions that were | |
606 | * modified during the transfer */ | |
607 | for (i = 0; i < flist->count; i++) { | |
608 | struct file_struct *file = flist->files[i]; | |
ec8290c8 WD |
609 | if (!file->basename || !S_ISDIR(file->mode)) |
610 | continue; | |
6dff5992 WD |
611 | recv_generator(local_name ? local_name : f_name(file), |
612 | file, i, -1); | |
613 | } | |
614 | ||
615 | if (verbose > 2) | |
616 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 617 | } |