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; |
a7260c40 | 45 | extern char *partial_dir; |
60c8d7bc | 46 | extern char *compare_dest; |
59c95e42 | 47 | extern int link_dest; |
5774786f WD |
48 | extern int whole_file; |
49 | extern int local_server; | |
5774786f | 50 | extern int list_only; |
b9f592fb | 51 | extern int read_batch; |
5774786f WD |
52 | extern int only_existing; |
53 | extern int orig_umask; | |
54 | extern int safe_symlinks; | |
ec8290c8 | 55 | extern unsigned int block_size; |
2f03f956 | 56 | |
97f9dcae WD |
57 | extern struct exclude_list_struct server_exclude_list; |
58 | ||
2f03f956 AT |
59 | |
60 | /* choose whether to skip a particular file */ | |
dfd5ba6a | 61 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 | 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]; | |
82 | file_checksum(fname,sum,st->st_size); | |
728d0922 | 83 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
84acca07 | 84 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
85 | } |
86 | ||
cc1e997d | 87 | if (size_only) |
84acca07 | 88 | return 1; |
2f03f956 | 89 | |
cc1e997d | 90 | if (ignore_times) |
84acca07 | 91 | return 0; |
cc1e997d | 92 | |
84acca07 | 93 | return cmp_modtime(st->st_mtime, file->modtime) == 0; |
2f03f956 AT |
94 | } |
95 | ||
96 | ||
2f03f956 | 97 | /* |
0e36d9da | 98 | * NULL sum_struct means we have no checksums |
195bd906 | 99 | */ |
fc0257c9 | 100 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 101 | { |
fc0257c9 S |
102 | static struct sum_struct null_sum; |
103 | ||
c338460d | 104 | if (sum == NULL) |
fc0257c9 S |
105 | sum = &null_sum; |
106 | ||
107 | write_int(f, sum->count); | |
108 | write_int(f, sum->blength); | |
d04e9c51 | 109 | if (protocol_version >= 27) |
fc0257c9 S |
110 | write_int(f, sum->s2length); |
111 | write_int(f, sum->remainder); | |
2f03f956 AT |
112 | } |
113 | ||
ec8290c8 | 114 | /* |
195bd906 | 115 | * set (initialize) the size entries in the per-file sum_struct |
ec8290c8 | 116 | * calculating dynamic block and checksum sizes. |
195bd906 | 117 | * |
ec8290c8 | 118 | * This is only called from generate_and_send_sums() but is a separate |
195bd906 S |
119 | * function to encapsulate the logic. |
120 | * | |
121 | * The block size is a rounded square root of file length. | |
122 | * | |
123 | * The checksum size is determined according to: | |
124 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
125 | * provided by Donovan Baarda which gives a probability of rsync | |
126 | * algorithm corrupting data and falling back using the whole md4 | |
127 | * checksums. | |
128 | * | |
129 | * This might be made one of several selectable heuristics. | |
130 | */ | |
bceec82f | 131 | |
423dba8e | 132 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 133 | { |
da9d12f5 WD |
134 | unsigned int blength; |
135 | int s2length; | |
195bd906 S |
136 | uint32 c; |
137 | uint64 l; | |
138 | ||
139 | if (block_size) { | |
140 | blength = block_size; | |
141 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
142 | blength = BLOCK_SIZE; | |
143 | } else { | |
144 | l = len; | |
145 | c = 1; | |
146 | while (l >>= 2) { | |
147 | c <<= 1; | |
148 | } | |
149 | blength = 0; | |
150 | do { | |
151 | blength |= c; | |
fb55e28d | 152 | if (len < (uint64)blength * blength) |
195bd906 S |
153 | blength &= ~c; |
154 | c >>= 1; | |
155 | } while (c >= 8); /* round to multiple of 8 */ | |
156 | blength = MAX(blength, BLOCK_SIZE); | |
157 | } | |
158 | ||
d04e9c51 | 159 | if (protocol_version < 27) { |
195bd906 S |
160 | s2length = csum_length; |
161 | } else if (csum_length == SUM_LENGTH) { | |
162 | s2length = SUM_LENGTH; | |
163 | } else { | |
da9d12f5 | 164 | int b = BLOCKSUM_BIAS; |
195bd906 S |
165 | l = len; |
166 | while (l >>= 1) { | |
167 | b += 2; | |
168 | } | |
169 | c = blength; | |
170 | while (c >>= 1 && b) { | |
171 | b--; | |
172 | } | |
173 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
174 | * subtract rollsum, | |
175 | * round up | |
176 | * --optimize in compiler-- | |
177 | */ | |
178 | s2length = MAX(s2length, csum_length); | |
179 | s2length = MIN(s2length, SUM_LENGTH); | |
180 | } | |
181 | ||
182 | sum->flength = len; | |
183 | sum->blength = blength; | |
184 | sum->s2length = s2length; | |
185 | sum->count = (len + (blength - 1)) / blength; | |
186 | sum->remainder = (len % blength); | |
187 | ||
188 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
189 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
190 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 191 | sum->s2length, (double)sum->flength); |
195bd906 S |
192 | } |
193 | } | |
80605142 | 194 | |
bceec82f | 195 | |
80605142 WD |
196 | /* |
197 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 198 | * |
80605142 WD |
199 | * Generate approximately one checksum every block_len bytes. |
200 | */ | |
6e45e1dd | 201 | static void generate_and_send_sums(int fd, OFF_T len, int f_out) |
2f03f956 | 202 | { |
80605142 | 203 | size_t i; |
6e45e1dd | 204 | struct map_struct *mapbuf; |
80605142 | 205 | struct sum_struct sum; |
2f03f956 AT |
206 | OFF_T offset = 0; |
207 | ||
423dba8e | 208 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 209 | |
6e45e1dd | 210 | if (len > 0) |
96d910c7 | 211 | mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength); |
6e45e1dd WD |
212 | else |
213 | mapbuf = NULL; | |
214 | ||
fc0257c9 | 215 | write_sum_head(f_out, &sum); |
2f03f956 | 216 | |
80605142 | 217 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 218 | unsigned int n1 = MIN(len, sum.blength); |
6e45e1dd | 219 | char *map = map_ptr(mapbuf, offset, n1); |
80605142 WD |
220 | uint32 sum1 = get_checksum1(map, n1); |
221 | char sum2[SUM_LENGTH]; | |
2f03f956 | 222 | |
80605142 | 223 | get_checksum2(map, n1, sum2); |
2f03f956 | 224 | |
80605142 | 225 | if (verbose > 3) { |
e66dfd18 | 226 | rprintf(FINFO, |
0e36d9da WD |
227 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
228 | (double)i, (double)offset, n1, | |
229 | (unsigned long)sum1); | |
80605142 WD |
230 | } |
231 | write_int(f_out, sum1); | |
fc0257c9 | 232 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
233 | len -= n1; |
234 | offset += n1; | |
235 | } | |
6e45e1dd WD |
236 | |
237 | if (mapbuf) | |
238 | unmap_file(mapbuf); | |
2f03f956 AT |
239 | } |
240 | ||
241 | ||
ef1aa910 | 242 | |
fd322eef | 243 | /* |
420ef2c4 | 244 | * Acts on file number @p i from @p flist, whose name is @p fname. |
ef1aa910 MP |
245 | * |
246 | * First fixes up permissions, then generates checksums for the file. | |
247 | * | |
420ef2c4 MP |
248 | * @note This comment was added later by mbp who was trying to work it |
249 | * out. It might be wrong. | |
fd322eef WD |
250 | */ |
251 | static void recv_generator(char *fname, struct file_struct *file, int i, | |
252 | int f_out) | |
2cda2560 | 253 | { |
2f03f956 | 254 | int fd; |
89f7eff3 | 255 | STRUCT_STAT st, partial_st; |
e7d13fe5 | 256 | int statret, stat_errno; |
89f7eff3 | 257 | char *fnamecmp, *partialptr = NULL; |
375a4556 | 258 | char fnamecmpbuf[MAXPATHLEN]; |
f7632fc6 | 259 | |
dfd5ba6a WD |
260 | if (list_only) |
261 | return; | |
2f03f956 AT |
262 | |
263 | if (verbose > 2) | |
ecc81fce | 264 | rprintf(FINFO, "recv_generator(%s,%d)\n", safe_fname(fname), i); |
2f03f956 | 265 | |
97f9dcae WD |
266 | if (server_exclude_list.head |
267 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
268 | S_ISDIR(file->mode)) < 0) { |
269 | if (verbose) { | |
270 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
ecc81fce | 271 | safe_fname(fname)); |
3e35c34b | 272 | } |
97f9dcae | 273 | return; |
3e35c34b | 274 | } |
97f9dcae | 275 | |
73f7af0e WD |
276 | if (dry_run > 1) { |
277 | statret = -1; | |
278 | stat_errno = ENOENT; | |
279 | } else { | |
280 | statret = link_stat(fname, &st, | |
281 | keep_dirlinks && S_ISDIR(file->mode)); | |
282 | stat_errno = errno; | |
283 | } | |
63787382 | 284 | |
a7260c40 | 285 | if (only_existing && statret == -1 && stat_errno == ENOENT) { |
1347d512 | 286 | /* we only want to update existing files */ |
ecc81fce WD |
287 | if (verbose > 1) { |
288 | rprintf(FINFO, "not creating new file \"%s\"\n", | |
289 | safe_fname(fname)); | |
290 | } | |
1347d512 AT |
291 | return; |
292 | } | |
293 | ||
d9b4d267 WD |
294 | if (statret == 0 && !preserve_perms |
295 | && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) { | |
4df9f368 | 296 | /* if the file exists already and we aren't perserving |
2cda2560 WD |
297 | * permissions then act as though the remote end sent |
298 | * us the file permissions we already have */ | |
67e78a82 WD |
299 | file->mode = (file->mode & ~CHMOD_BITS) |
300 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
301 | } |
302 | ||
2f03f956 | 303 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
304 | /* The file to be received is a directory, so we need |
305 | * to prepare appropriately. If there is already a | |
306 | * file of that name and it is *not* a directory, then | |
307 | * we need to delete it. If it doesn't exist, then | |
308 | * recursively create it. */ | |
309 | ||
ec8290c8 WD |
310 | if (dry_run) |
311 | return; /* TODO: causes inaccuracies -- fix */ | |
2f03f956 | 312 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 313 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
314 | rsyserr(FERROR, errno, |
315 | "recv_generator: unlink %s to make room for directory", | |
316 | full_fname(fname)); | |
2f03f956 AT |
317 | return; |
318 | } | |
319 | statret = -1; | |
320 | } | |
321 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
322 | if (!(relative_paths && errno == ENOENT |
323 | && create_directory_path(fname, orig_umask) == 0 | |
324 | && do_mkdir(fname, file->mode) == 0)) { | |
325 | rsyserr(FERROR, errno, | |
326 | "recv_generator: mkdir %s failed", | |
327 | full_fname(fname)); | |
2f03f956 AT |
328 | } |
329 | } | |
716e73d4 WD |
330 | /* f_out is set to -1 when doing final directory-permission |
331 | * and modification-time repair. */ | |
332 | if (set_perms(fname, file, statret ? NULL : &st, 0) | |
333 | && verbose && f_out != -1) | |
ecc81fce | 334 | rprintf(FINFO, "%s/\n", safe_fname(fname)); |
2f03f956 AT |
335 | return; |
336 | } | |
337 | ||
338 | if (preserve_links && S_ISLNK(file->mode)) { | |
339 | #if SUPPORT_LINKS | |
340 | char lnk[MAXPATHLEN]; | |
341 | int l; | |
2f03f956 | 342 | |
728d0922 | 343 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 344 | if (verbose) { |
ea42541f | 345 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 346 | full_fname(fname), file->u.link); |
2f03f956 AT |
347 | } |
348 | return; | |
349 | } | |
350 | if (statret == 0) { | |
351 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
352 | if (l > 0) { | |
353 | lnk[l] = 0; | |
85d4d142 MP |
354 | /* A link already pointing to the |
355 | * right place -- no further action | |
356 | * required. */ | |
728d0922 | 357 | if (strcmp(lnk,file->u.link) == 0) { |
c41b52c4 WD |
358 | set_perms(fname, file, &st, |
359 | PERMS_REPORT); | |
2f03f956 AT |
360 | return; |
361 | } | |
2cda2560 | 362 | } |
85d4d142 MP |
363 | /* Not a symlink, so delete whatever's |
364 | * already there and put a new symlink | |
2cda2560 | 365 | * in place. */ |
4b3977bf | 366 | delete_file(fname); |
2f03f956 | 367 | } |
728d0922 | 368 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 | 369 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
ecc81fce | 370 | full_fname(fname), safe_fname(file->u.link)); |
2f03f956 AT |
371 | } else { |
372 | set_perms(fname,file,NULL,0); | |
373 | if (verbose) { | |
ecc81fce WD |
374 | rprintf(FINFO, "%s -> %s\n", safe_fname(fname), |
375 | safe_fname(file->u.link)); | |
2f03f956 AT |
376 | } |
377 | } | |
378 | #endif | |
379 | return; | |
380 | } | |
381 | ||
382 | #ifdef HAVE_MKNOD | |
383 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 384 | if (statret != 0 || |
2f03f956 | 385 | st.st_mode != file->mode || |
3915fd75 | 386 | st.st_rdev != file->u.rdev) { |
2f03f956 | 387 | delete_file(fname); |
d62bcc17 | 388 | if (verbose > 2) { |
2f03f956 | 389 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
ecc81fce WD |
390 | safe_fname(fname), |
391 | (int)file->mode, (int)file->u.rdev); | |
d62bcc17 | 392 | } |
728d0922 | 393 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
394 | rsyserr(FERROR, errno, "mknod %s failed", |
395 | full_fname(fname)); | |
2f03f956 AT |
396 | } else { |
397 | set_perms(fname,file,NULL,0); | |
ecc81fce WD |
398 | if (verbose) { |
399 | rprintf(FINFO, "%s\n", | |
400 | safe_fname(fname)); | |
401 | } | |
2f03f956 AT |
402 | } |
403 | } else { | |
c41b52c4 | 404 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
405 | } |
406 | return; | |
407 | } | |
408 | #endif | |
409 | ||
6dff5992 | 410 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 411 | return; |
2f03f956 AT |
412 | |
413 | if (!S_ISREG(file->mode)) { | |
ecc81fce WD |
414 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", |
415 | safe_fname(fname)); | |
2f03f956 AT |
416 | return; |
417 | } | |
418 | ||
375a4556 DD |
419 | fnamecmp = fname; |
420 | ||
c338460d | 421 | if (statret == -1 && compare_dest != NULL) { |
375a4556 | 422 | /* try the file at compare_dest instead */ |
248ed45f | 423 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
e7d13fe5 WD |
424 | if (link_stat(fnamecmpbuf, &st, 0) == 0 |
425 | && S_ISREG(st.st_mode)) { | |
59c95e42 | 426 | #if HAVE_LINK |
e7d13fe5 WD |
427 | if (link_dest && !dry_run) { |
428 | if (do_link(fnamecmpbuf, fname) < 0) { | |
429 | if (verbose) { | |
430 | rsyserr(FINFO, errno, | |
431 | "link %s => %s", | |
432 | fnamecmpbuf, | |
433 | safe_fname(fname)); | |
434 | } | |
435 | fnamecmp = fnamecmpbuf; | |
e7bc9b64 | 436 | } |
e7d13fe5 | 437 | } else |
59c95e42 | 438 | #endif |
e7d13fe5 WD |
439 | fnamecmp = fnamecmpbuf; |
440 | statret = 0; | |
441 | } | |
442 | } | |
443 | ||
444 | if (statret == 0 && !S_ISREG(st.st_mode)) { | |
445 | if (delete_file(fname) != 0) | |
446 | return; | |
447 | statret = -1; | |
448 | stat_errno = ENOENT; | |
375a4556 DD |
449 | } |
450 | ||
89f7eff3 WD |
451 | if (partial_dir) { |
452 | if ((partialptr = partial_dir_fname(fname)) | |
453 | && link_stat(partialptr, &partial_st, 0) == 0 | |
454 | && S_ISREG(partial_st.st_mode)) { | |
455 | if (statret == -1) | |
456 | goto prepare_to_open; | |
457 | } else | |
458 | partialptr = NULL; | |
459 | } | |
460 | ||
2f03f956 | 461 | if (statret == -1) { |
6dff5992 WD |
462 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
463 | return; | |
e7d13fe5 | 464 | if (stat_errno == ENOENT) { |
2f03f956 | 465 | write_int(f_out,i); |
727b35f6 | 466 | if (!dry_run && !read_batch) |
ec8290c8 | 467 | write_sum_head(f_out, NULL); |
ea42541f | 468 | } else if (verbose > 1) { |
e7d13fe5 WD |
469 | rsyserr(FERROR, stat_errno, |
470 | "recv_generator: failed to stat %s", | |
d62bcc17 | 471 | full_fname(fname)); |
2f03f956 AT |
472 | } |
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 | ||
065a6052 | 489 | if (skip_file(fnamecmp, file, &st)) { |
bd4ed7f7 | 490 | if (fnamecmp == fname) |
c41b52c4 | 491 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
492 | return; |
493 | } | |
494 | ||
89f7eff3 | 495 | prepare_to_open: |
727b35f6 | 496 | if (dry_run || read_batch) { |
2f03f956 AT |
497 | write_int(f_out,i); |
498 | return; | |
499 | } | |
500 | ||
f38bd4a0 | 501 | if (whole_file > 0) { |
2f03f956 | 502 | write_int(f_out,i); |
fc0257c9 | 503 | write_sum_head(f_out, NULL); |
2f03f956 AT |
504 | return; |
505 | } | |
506 | ||
89f7eff3 WD |
507 | if (partialptr) { |
508 | st = partial_st; | |
509 | fnamecmp = partialptr; | |
a7260c40 WD |
510 | } |
511 | ||
2cda2560 | 512 | /* open the file */ |
8c9fd200 | 513 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
514 | |
515 | if (fd == -1) { | |
d62bcc17 WD |
516 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
517 | full_fname(fnamecmp)); | |
60be6acf | 518 | /* pretend the file didn't exist */ |
6dff5992 WD |
519 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
520 | return; | |
60be6acf | 521 | write_int(f_out,i); |
fc0257c9 | 522 | write_sum_head(f_out, NULL); |
2f03f956 AT |
523 | return; |
524 | } | |
525 | ||
dfd5ba6a | 526 | if (verbose > 3) { |
ecc81fce WD |
527 | rprintf(FINFO, "gen mapped %s of size %.0f\n", |
528 | safe_fname(fnamecmp), (double)st.st_size); | |
dfd5ba6a | 529 | } |
2f03f956 | 530 | |
2f03f956 | 531 | if (verbose > 2) |
80605142 | 532 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
533 | |
534 | write_int(f_out,i); | |
6e45e1dd | 535 | generate_and_send_sums(fd, st.st_size, f_out); |
2f03f956 AT |
536 | |
537 | close(fd); | |
2f03f956 AT |
538 | } |
539 | ||
540 | ||
7daccb8e | 541 | void generate_files(int f_out, struct file_list *flist, char *local_name) |
2f03f956 AT |
542 | { |
543 | int i; | |
e1f67417 | 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, | |
f38bd4a0 | 554 | whole_file > 0 |
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 | 581 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 582 | file, i, f_out); |
2f03f956 AT |
583 | } |
584 | ||
585 | phase++; | |
586 | csum_length = SUM_LENGTH; | |
e1f67417 | 587 | ignore_times = 1; |
2f03f956 AT |
588 | |
589 | if (verbose > 2) | |
590 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
591 | ||
7daccb8e | 592 | write_int(f_out, -1); |
2f03f956 | 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 | 598 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
7daccb8e | 599 | file, i, f_out); |
bc63ae3f | 600 | } |
2f03f956 | 601 | |
bc63ae3f S |
602 | phase++; |
603 | if (verbose > 2) | |
604 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 605 | |
7daccb8e | 606 | write_int(f_out, -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]; | |
ec8290c8 WD |
615 | if (!file->basename || !S_ISDIR(file->mode)) |
616 | continue; | |
6dff5992 WD |
617 | recv_generator(local_name ? local_name : f_name(file), |
618 | file, i, -1); | |
619 | } | |
620 | ||
621 | if (verbose > 2) | |
622 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 623 | } |