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; | |
e610e50f | 49 | extern int read_batch; |
5774786f WD |
50 | extern int write_batch; |
51 | extern int list_only; | |
52 | extern int only_existing; | |
53 | extern int orig_umask; | |
54 | extern int safe_symlinks; | |
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 AT |
61 | { |
62 | if (st->st_size != file->length) { | |
63 | return 0; | |
64 | } | |
59c95e42 | 65 | if (link_dest) { |
e7bc9b64 | 66 | if (preserve_perms |
67e78a82 | 67 | && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS)) |
bb24028f S |
68 | return 0; |
69 | ||
6744b62d | 70 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 71 | return 0; |
bb24028f | 72 | |
a60e2dca S |
73 | if (preserve_gid && file->gid != GID_NONE |
74 | && st->st_gid != file->gid) | |
59c95e42 | 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 |
4499c0ee | 93 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
94 | } |
95 | ||
f83f0548 AT |
96 | if (size_only) { |
97 | return 1; | |
98 | } | |
99 | ||
2f03f956 AT |
100 | if (ignore_times) { |
101 | return 0; | |
102 | } | |
103 | ||
5b56cc19 | 104 | return (cmp_modtime(st->st_mtime,file->modtime) == 0); |
2f03f956 AT |
105 | } |
106 | ||
107 | ||
2f03f956 | 108 | /* |
0e36d9da | 109 | * NULL sum_struct means we have no checksums |
195bd906 | 110 | */ |
fc0257c9 | 111 | void write_sum_head(int f, struct sum_struct *sum) |
2f03f956 | 112 | { |
fc0257c9 S |
113 | static struct sum_struct null_sum; |
114 | ||
c338460d | 115 | if (sum == NULL) |
fc0257c9 S |
116 | sum = &null_sum; |
117 | ||
118 | write_int(f, sum->count); | |
119 | write_int(f, sum->blength); | |
d04e9c51 | 120 | if (protocol_version >= 27) |
fc0257c9 S |
121 | write_int(f, sum->s2length); |
122 | write_int(f, sum->remainder); | |
2f03f956 AT |
123 | } |
124 | ||
195bd906 S |
125 | /* |
126 | * set (initialize) the size entries in the per-file sum_struct | |
127 | * calulating dynamic block ans checksum sizes. | |
128 | * | |
129 | * This is only called from generate_and_send_sums() but is a seperate | |
130 | * function to encapsulate the logic. | |
131 | * | |
132 | * The block size is a rounded square root of file length. | |
133 | * | |
134 | * The checksum size is determined according to: | |
135 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
136 | * provided by Donovan Baarda which gives a probability of rsync | |
137 | * algorithm corrupting data and falling back using the whole md4 | |
138 | * checksums. | |
139 | * | |
140 | * This might be made one of several selectable heuristics. | |
141 | */ | |
bceec82f | 142 | |
423dba8e | 143 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 | 144 | { |
da9d12f5 WD |
145 | extern unsigned int block_size; |
146 | unsigned int blength; | |
147 | int s2length; | |
195bd906 S |
148 | uint32 c; |
149 | uint64 l; | |
150 | ||
151 | if (block_size) { | |
152 | blength = block_size; | |
153 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
154 | blength = BLOCK_SIZE; | |
155 | } else { | |
156 | l = len; | |
157 | c = 1; | |
158 | while (l >>= 2) { | |
159 | c <<= 1; | |
160 | } | |
161 | blength = 0; | |
162 | do { | |
163 | blength |= c; | |
fb55e28d | 164 | if (len < (uint64)blength * blength) |
195bd906 S |
165 | blength &= ~c; |
166 | c >>= 1; | |
167 | } while (c >= 8); /* round to multiple of 8 */ | |
168 | blength = MAX(blength, BLOCK_SIZE); | |
169 | } | |
170 | ||
d04e9c51 | 171 | if (protocol_version < 27) { |
195bd906 S |
172 | s2length = csum_length; |
173 | } else if (csum_length == SUM_LENGTH) { | |
174 | s2length = SUM_LENGTH; | |
175 | } else { | |
da9d12f5 | 176 | int b = BLOCKSUM_BIAS; |
195bd906 S |
177 | l = len; |
178 | while (l >>= 1) { | |
179 | b += 2; | |
180 | } | |
181 | c = blength; | |
182 | while (c >>= 1 && b) { | |
183 | b--; | |
184 | } | |
185 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
186 | * subtract rollsum, | |
187 | * round up | |
188 | * --optimize in compiler-- | |
189 | */ | |
190 | s2length = MAX(s2length, csum_length); | |
191 | s2length = MIN(s2length, SUM_LENGTH); | |
192 | } | |
193 | ||
194 | sum->flength = len; | |
195 | sum->blength = blength; | |
196 | sum->s2length = s2length; | |
197 | sum->count = (len + (blength - 1)) / blength; | |
198 | sum->remainder = (len % blength); | |
199 | ||
200 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
201 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
202 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 203 | sum->s2length, (double)sum->flength); |
195bd906 S |
204 | } |
205 | } | |
80605142 | 206 | |
bceec82f MP |
207 | /** |
208 | * Perhaps we want to just send an empty checksum set for this file, | |
209 | * which will force the whole thing to be literally transferred. | |
210 | * | |
211 | * When do we do this? If the user's explicitly said they | |
212 | * want the whole thing, or if { they haven't explicitly | |
213 | * requested a delta, and it's local but not batch mode.} | |
214 | * | |
215 | * Whew. */ | |
216 | static BOOL disable_deltas_p(void) | |
217 | { | |
2cda2560 | 218 | if (whole_file > 0) |
bceec82f | 219 | return True; |
935c6417 | 220 | if (whole_file == 0 || write_batch || read_batch) |
bceec82f | 221 | return False; |
2cda2560 | 222 | return local_server; |
bceec82f MP |
223 | } |
224 | ||
225 | ||
80605142 WD |
226 | /* |
227 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 228 | * |
80605142 WD |
229 | * Generate approximately one checksum every block_len bytes. |
230 | */ | |
2990e06f | 231 | static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out) |
2f03f956 | 232 | { |
80605142 WD |
233 | size_t i; |
234 | struct sum_struct sum; | |
2f03f956 AT |
235 | OFF_T offset = 0; |
236 | ||
423dba8e | 237 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 238 | |
fc0257c9 | 239 | write_sum_head(f_out, &sum); |
2f03f956 | 240 | |
80605142 | 241 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 242 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 243 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
244 | uint32 sum1 = get_checksum1(map, n1); |
245 | char sum2[SUM_LENGTH]; | |
2f03f956 | 246 | |
80605142 | 247 | get_checksum2(map, n1, sum2); |
2f03f956 | 248 | |
80605142 | 249 | if (verbose > 3) { |
e66dfd18 | 250 | rprintf(FINFO, |
0e36d9da WD |
251 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
252 | (double)i, (double)offset, n1, | |
253 | (unsigned long)sum1); | |
80605142 WD |
254 | } |
255 | write_int(f_out, sum1); | |
fc0257c9 | 256 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
257 | len -= n1; |
258 | offset += n1; | |
259 | } | |
2f03f956 AT |
260 | } |
261 | ||
262 | ||
ef1aa910 | 263 | |
420ef2c4 MP |
264 | /** |
265 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
266 | * |
267 | * First fixes up permissions, then generates checksums for the file. | |
268 | * | |
420ef2c4 MP |
269 | * @note This comment was added later by mbp who was trying to work it |
270 | * out. It might be wrong. | |
2cda2560 | 271 | **/ |
dfd5ba6a | 272 | void recv_generator(char *fname, struct file_struct *file, int i, int f_out) |
2cda2560 | 273 | { |
2f03f956 AT |
274 | int fd; |
275 | STRUCT_STAT st; | |
968c8030 | 276 | struct map_struct *mapbuf; |
2f03f956 | 277 | int statret; |
375a4556 DD |
278 | char *fnamecmp; |
279 | char fnamecmpbuf[MAXPATHLEN]; | |
f7632fc6 | 280 | |
dfd5ba6a WD |
281 | if (list_only) |
282 | return; | |
2f03f956 AT |
283 | |
284 | if (verbose > 2) | |
285 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
286 | ||
97f9dcae WD |
287 | if (server_exclude_list.head |
288 | && check_exclude(&server_exclude_list, fname, | |
3e35c34b WD |
289 | S_ISDIR(file->mode)) < 0) { |
290 | if (verbose) { | |
291 | rprintf(FINFO, "skipping server-excluded file \"%s\"\n", | |
292 | fname); | |
293 | } | |
97f9dcae | 294 | return; |
3e35c34b | 295 | } |
97f9dcae | 296 | |
2f03f956 | 297 | statret = link_stat(fname,&st); |
63787382 | 298 | |
1347d512 AT |
299 | if (only_existing && statret == -1 && errno == ENOENT) { |
300 | /* we only want to update existing files */ | |
3e35c34b WD |
301 | if (verbose > 1) |
302 | rprintf(FINFO, "not creating new file \"%s\"\n", fname); | |
1347d512 AT |
303 | return; |
304 | } | |
305 | ||
716e73d4 WD |
306 | #if SUPPORT_LINKS |
307 | if (statret == 0 && keep_dirlinks | |
308 | && S_ISLNK(st.st_mode) && S_ISDIR(file->mode)) { | |
309 | STRUCT_STAT st2; | |
310 | if (do_stat(fname, &st2) == 0 && S_ISDIR(st2.st_mode)) | |
311 | st = st2; | |
312 | } | |
313 | #endif | |
314 | ||
2cda2560 WD |
315 | if (statret == 0 && |
316 | !preserve_perms && | |
4df9f368 AT |
317 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
318 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
319 | * permissions then act as though the remote end sent |
320 | * us the file permissions we already have */ | |
67e78a82 WD |
321 | file->mode = (file->mode & ~CHMOD_BITS) |
322 | | (st.st_mode & CHMOD_BITS); | |
4df9f368 AT |
323 | } |
324 | ||
2f03f956 | 325 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
326 | /* The file to be received is a directory, so we need |
327 | * to prepare appropriately. If there is already a | |
328 | * file of that name and it is *not* a directory, then | |
329 | * we need to delete it. If it doesn't exist, then | |
330 | * recursively create it. */ | |
331 | ||
85d4d142 | 332 | if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */ |
2f03f956 | 333 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 334 | if (robust_unlink(fname) != 0) { |
d62bcc17 WD |
335 | rsyserr(FERROR, errno, |
336 | "recv_generator: unlink %s to make room for directory", | |
337 | full_fname(fname)); | |
2f03f956 AT |
338 | return; |
339 | } | |
340 | statret = -1; | |
341 | } | |
342 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
d62bcc17 WD |
343 | if (!(relative_paths && errno == ENOENT |
344 | && create_directory_path(fname, orig_umask) == 0 | |
345 | && do_mkdir(fname, file->mode) == 0)) { | |
346 | rsyserr(FERROR, errno, | |
347 | "recv_generator: mkdir %s failed", | |
348 | full_fname(fname)); | |
2f03f956 AT |
349 | } |
350 | } | |
716e73d4 WD |
351 | /* f_out is set to -1 when doing final directory-permission |
352 | * and modification-time repair. */ | |
353 | if (set_perms(fname, file, statret ? NULL : &st, 0) | |
354 | && verbose && f_out != -1) | |
2f03f956 AT |
355 | rprintf(FINFO,"%s/\n",fname); |
356 | return; | |
357 | } | |
358 | ||
359 | if (preserve_links && S_ISLNK(file->mode)) { | |
360 | #if SUPPORT_LINKS | |
361 | char lnk[MAXPATHLEN]; | |
362 | int l; | |
2f03f956 | 363 | |
728d0922 | 364 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 365 | if (verbose) { |
ea42541f | 366 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 367 | full_fname(fname), file->u.link); |
2f03f956 AT |
368 | } |
369 | return; | |
370 | } | |
371 | if (statret == 0) { | |
372 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
373 | if (l > 0) { | |
374 | lnk[l] = 0; | |
85d4d142 MP |
375 | /* A link already pointing to the |
376 | * right place -- no further action | |
377 | * required. */ | |
728d0922 | 378 | if (strcmp(lnk,file->u.link) == 0) { |
c41b52c4 WD |
379 | set_perms(fname, file, &st, |
380 | PERMS_REPORT); | |
2f03f956 AT |
381 | return; |
382 | } | |
2cda2560 | 383 | } |
85d4d142 MP |
384 | /* Not a symlink, so delete whatever's |
385 | * already there and put a new symlink | |
2cda2560 | 386 | * in place. */ |
4b3977bf | 387 | delete_file(fname); |
2f03f956 | 388 | } |
728d0922 | 389 | if (do_symlink(file->u.link,fname) != 0) { |
d62bcc17 WD |
390 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
391 | full_fname(fname), file->u.link); | |
2f03f956 AT |
392 | } else { |
393 | set_perms(fname,file,NULL,0); | |
394 | if (verbose) { | |
728d0922 | 395 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
396 | } |
397 | } | |
398 | #endif | |
399 | return; | |
400 | } | |
401 | ||
402 | #ifdef HAVE_MKNOD | |
403 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 404 | if (statret != 0 || |
2f03f956 | 405 | st.st_mode != file->mode || |
3915fd75 | 406 | st.st_rdev != file->u.rdev) { |
2f03f956 | 407 | delete_file(fname); |
d62bcc17 | 408 | if (verbose > 2) { |
2f03f956 | 409 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", |
728d0922 | 410 | fname,(int)file->mode,(int)file->u.rdev); |
d62bcc17 | 411 | } |
728d0922 | 412 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { |
d62bcc17 WD |
413 | rsyserr(FERROR, errno, "mknod %s failed", |
414 | full_fname(fname)); | |
2f03f956 AT |
415 | } else { |
416 | set_perms(fname,file,NULL,0); | |
417 | if (verbose) | |
418 | rprintf(FINFO,"%s\n",fname); | |
419 | } | |
420 | } else { | |
c41b52c4 | 421 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
422 | } |
423 | return; | |
424 | } | |
425 | #endif | |
426 | ||
6dff5992 | 427 | if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER)) |
2f03f956 | 428 | return; |
2f03f956 AT |
429 | |
430 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 431 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
432 | return; |
433 | } | |
434 | ||
375a4556 DD |
435 | fnamecmp = fname; |
436 | ||
c338460d | 437 | if (statret == -1 && compare_dest != NULL) { |
375a4556 DD |
438 | /* try the file at compare_dest instead */ |
439 | int saveerrno = errno; | |
248ed45f | 440 | pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname); |
375a4556 DD |
441 | statret = link_stat(fnamecmpbuf,&st); |
442 | if (!S_ISREG(st.st_mode)) | |
443 | statret = -1; | |
444 | if (statret == -1) | |
445 | errno = saveerrno; | |
59c95e42 DD |
446 | #if HAVE_LINK |
447 | else if (link_dest && !dry_run) { | |
448 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 449 | if (verbose > 0) { |
d62bcc17 WD |
450 | rsyserr(FINFO, errno, "link %s => %s", |
451 | fnamecmpbuf, fname); | |
e7bc9b64 | 452 | } |
59c95e42 DD |
453 | } |
454 | fnamecmp = fnamecmpbuf; | |
455 | } | |
456 | #endif | |
375a4556 DD |
457 | else |
458 | fnamecmp = fnamecmpbuf; | |
459 | } | |
460 | ||
2f03f956 | 461 | if (statret == -1) { |
6dff5992 WD |
462 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
463 | return; | |
2f03f956 AT |
464 | if (errno == ENOENT) { |
465 | write_int(f_out,i); | |
fc0257c9 | 466 | if (!dry_run) write_sum_head(f_out, NULL); |
ea42541f | 467 | } else if (verbose > 1) { |
d62bcc17 WD |
468 | rsyserr(FERROR, errno, |
469 | "recv_generator: failed to open %s", | |
470 | full_fname(fname)); | |
2f03f956 AT |
471 | } |
472 | return; | |
473 | } | |
474 | ||
475 | if (!S_ISREG(st.st_mode)) { | |
476 | if (delete_file(fname) != 0) { | |
477 | return; | |
478 | } | |
479 | ||
480 | /* now pretend the file didn't exist */ | |
6dff5992 WD |
481 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
482 | return; | |
2f03f956 | 483 | write_int(f_out,i); |
fc0257c9 | 484 | if (!dry_run) write_sum_head(f_out, NULL); |
2f03f956 AT |
485 | return; |
486 | } | |
487 | ||
2cda2560 | 488 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
489 | if (verbose > 1) |
490 | rprintf(FINFO,"%s exists\n",fname); | |
491 | return; | |
2cda2560 | 492 | } |
3d6feada | 493 | |
5b56cc19 | 494 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
495 | if (verbose > 1) |
496 | rprintf(FINFO,"%s is newer\n",fname); | |
497 | return; | |
498 | } | |
499 | ||
500 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 | 501 | if (fnamecmp == fname) |
c41b52c4 | 502 | set_perms(fname, file, &st, PERMS_REPORT); |
2f03f956 AT |
503 | return; |
504 | } | |
505 | ||
506 | if (dry_run) { | |
507 | write_int(f_out,i); | |
508 | return; | |
509 | } | |
510 | ||
bceec82f | 511 | if (disable_deltas_p()) { |
2f03f956 | 512 | write_int(f_out,i); |
fc0257c9 | 513 | write_sum_head(f_out, NULL); |
2f03f956 AT |
514 | return; |
515 | } | |
516 | ||
2cda2560 | 517 | /* open the file */ |
8c9fd200 | 518 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
519 | |
520 | if (fd == -1) { | |
d62bcc17 WD |
521 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
522 | full_fname(fnamecmp)); | |
60be6acf | 523 | /* pretend the file didn't exist */ |
6dff5992 WD |
524 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
525 | return; | |
60be6acf | 526 | write_int(f_out,i); |
fc0257c9 | 527 | write_sum_head(f_out, NULL); |
2f03f956 AT |
528 | return; |
529 | } | |
530 | ||
968c8030 WD |
531 | if (st.st_size > 0) |
532 | mapbuf = map_file(fd,st.st_size); | |
533 | else | |
534 | mapbuf = NULL; | |
2f03f956 | 535 | |
dfd5ba6a WD |
536 | if (verbose > 3) { |
537 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
538 | (double)st.st_size); | |
539 | } | |
2f03f956 | 540 | |
2f03f956 | 541 | if (verbose > 2) |
80605142 | 542 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
543 | |
544 | write_int(f_out,i); | |
968c8030 | 545 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
546 | |
547 | close(fd); | |
968c8030 | 548 | if (mapbuf) unmap_file(mapbuf); |
2f03f956 AT |
549 | } |
550 | ||
551 | ||
b9b15fb1 | 552 | void generate_files(int f, struct file_list *flist, char *local_name) |
2f03f956 AT |
553 | { |
554 | int i; | |
555 | int phase=0; | |
968c8030 | 556 | char fbuf[MAXPATHLEN]; |
2f03f956 | 557 | |
45e08edb WD |
558 | if (verbose > 2) { |
559 | rprintf(FINFO, "generator starting pid=%ld count=%d\n", | |
560 | (long)getpid(), flist->count); | |
561 | } | |
2f03f956 | 562 | |
3e7053ac MP |
563 | if (verbose >= 2) { |
564 | rprintf(FINFO, | |
2cda2560 | 565 | disable_deltas_p() |
3e7053ac MP |
566 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
567 | : "delta transmission enabled\n"); | |
568 | } | |
2cda2560 | 569 | |
a57873b7 AT |
570 | /* we expect to just sit around now, so don't exit on a |
571 | timeout. If we really get a timeout then the other process should | |
572 | exit */ | |
573 | io_timeout = 0; | |
574 | ||
2f03f956 AT |
575 | for (i = 0; i < flist->count; i++) { |
576 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 577 | struct file_struct copy; |
2f03f956 | 578 | |
dfd5ba6a WD |
579 | if (!file->basename) |
580 | continue; | |
2f03f956 AT |
581 | /* we need to ensure that any directories we create have writeable |
582 | permissions initially so that we can create the files within | |
583 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
584 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
585 | copy = *file; | |
2cda2560 WD |
586 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
587 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
588 | copy.mode |= S_IWUSR; /* user write */ |
589 | file = © | |
2f03f956 AT |
590 | } |
591 | ||
3fef5364 WD |
592 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
593 | file, i, f); | |
2f03f956 AT |
594 | } |
595 | ||
596 | phase++; | |
597 | csum_length = SUM_LENGTH; | |
598 | ignore_times=1; | |
599 | ||
600 | if (verbose > 2) | |
601 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
602 | ||
603 | write_int(f,-1); | |
604 | ||
bc63ae3f S |
605 | /* files can cycle through the system more than once |
606 | * to catch initial checksum errors */ | |
b9b15fb1 | 607 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 608 | struct file_struct *file = flist->files[i]; |
3fef5364 WD |
609 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
610 | file, i, f); | |
bc63ae3f | 611 | } |
2f03f956 | 612 | |
bc63ae3f S |
613 | phase++; |
614 | if (verbose > 2) | |
615 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 616 | |
bc63ae3f | 617 | write_int(f,-1); |
6dff5992 WD |
618 | |
619 | if (preserve_hard_links) | |
620 | do_hard_links(); | |
621 | ||
622 | /* now we need to fix any directory permissions that were | |
623 | * modified during the transfer */ | |
624 | for (i = 0; i < flist->count; i++) { | |
625 | struct file_struct *file = flist->files[i]; | |
626 | if (!file->basename || !S_ISDIR(file->mode)) continue; | |
627 | recv_generator(local_name ? local_name : f_name(file), | |
628 | file, i, -1); | |
629 | } | |
630 | ||
631 | if (verbose > 2) | |
632 | rprintf(FINFO,"generate_files finished\n"); | |
2f03f956 | 633 | } |