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; | |
29 | extern int preserve_links; | |
30 | extern int am_root; | |
31 | extern int preserve_devices; | |
32 | extern int preserve_hard_links; | |
6744b62d WD |
33 | extern int preserve_perms; |
34 | extern int preserve_uid; | |
35 | extern int preserve_gid; | |
2f03f956 | 36 | extern int update_only; |
3d6feada | 37 | extern int opt_ignore_existing; |
2f03f956 AT |
38 | extern int csum_length; |
39 | extern int ignore_times; | |
f83f0548 | 40 | extern int size_only; |
2f03f956 | 41 | extern int io_timeout; |
d04e9c51 | 42 | extern int protocol_version; |
2f03f956 | 43 | extern int always_checksum; |
60c8d7bc | 44 | extern char *compare_dest; |
59c95e42 | 45 | extern int link_dest; |
2f03f956 AT |
46 | |
47 | ||
48 | /* choose whether to skip a particular file */ | |
49 | static int skip_file(char *fname, | |
50 | struct file_struct *file, STRUCT_STAT *st) | |
51 | { | |
52 | if (st->st_size != file->length) { | |
53 | return 0; | |
54 | } | |
59c95e42 | 55 | if (link_dest) { |
e7bc9b64 | 56 | if (preserve_perms |
6744b62d | 57 | && (st->st_mode & ~_S_IFMT) != (file->mode & ~_S_IFMT)) |
bb24028f S |
58 | return 0; |
59 | ||
6744b62d | 60 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 61 | return 0; |
bb24028f | 62 | |
6744b62d WD |
63 | if (preserve_gid && file->gid != (gid_t)-1 |
64 | && st->st_gid != file->gid) | |
59c95e42 | 65 | return 0; |
59c95e42 DD |
66 | } |
67 | ||
2cda2560 | 68 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
69 | of the file time to determine whether to sync */ |
70 | if (always_checksum && S_ISREG(st->st_mode)) { | |
71 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
72 | char fnamecmpdest[MAXPATHLEN]; |
73 | ||
74 | if (compare_dest != NULL) { | |
75 | if (access(fname, 0) != 0) { | |
8950ac03 | 76 | snprintf(fnamecmpdest,MAXPATHLEN,"%s/%s", |
2cda2560 | 77 | compare_dest,fname); |
60c8d7bc DD |
78 | fname = fnamecmpdest; |
79 | } | |
80 | } | |
2f03f956 | 81 | file_checksum(fname,sum,st->st_size); |
d04e9c51 | 82 | if (protocol_version < 21) { |
f855a7d0 AT |
83 | return (memcmp(sum,file->sum,2) == 0); |
84 | } else { | |
85 | return (memcmp(sum,file->sum,MD4_SUM_LENGTH) == 0); | |
86 | } | |
2f03f956 AT |
87 | } |
88 | ||
f83f0548 AT |
89 | if (size_only) { |
90 | return 1; | |
91 | } | |
92 | ||
2f03f956 AT |
93 | if (ignore_times) { |
94 | return 0; | |
95 | } | |
96 | ||
5b56cc19 | 97 | return (cmp_modtime(st->st_mtime,file->modtime) == 0); |
2f03f956 AT |
98 | } |
99 | ||
100 | ||
2f03f956 | 101 | /* |
fc0257c9 | 102 | * NULL sum_struct means we have no checksums |
195bd906 | 103 | */ |
fc0257c9 S |
104 | |
105 | void write_sum_head(int f, struct sum_struct *sum) | |
2f03f956 | 106 | { |
fc0257c9 S |
107 | static struct sum_struct null_sum; |
108 | ||
109 | if (sum == (struct sum_struct *)NULL) | |
110 | sum = &null_sum; | |
111 | ||
112 | write_int(f, sum->count); | |
113 | write_int(f, sum->blength); | |
d04e9c51 | 114 | if (protocol_version >= 27) |
fc0257c9 S |
115 | write_int(f, sum->s2length); |
116 | write_int(f, sum->remainder); | |
2f03f956 AT |
117 | } |
118 | ||
195bd906 S |
119 | /* |
120 | * set (initialize) the size entries in the per-file sum_struct | |
121 | * calulating dynamic block ans checksum sizes. | |
122 | * | |
123 | * This is only called from generate_and_send_sums() but is a seperate | |
124 | * function to encapsulate the logic. | |
125 | * | |
126 | * The block size is a rounded square root of file length. | |
127 | * | |
128 | * The checksum size is determined according to: | |
129 | * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len) | |
130 | * provided by Donovan Baarda which gives a probability of rsync | |
131 | * algorithm corrupting data and falling back using the whole md4 | |
132 | * checksums. | |
133 | * | |
134 | * This might be made one of several selectable heuristics. | |
135 | */ | |
bceec82f | 136 | |
423dba8e | 137 | static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len) |
195bd906 S |
138 | { |
139 | extern int block_size; | |
140 | int blength, s2length, b; | |
141 | uint32 c; | |
142 | uint64 l; | |
143 | ||
144 | if (block_size) { | |
145 | blength = block_size; | |
146 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
147 | blength = BLOCK_SIZE; | |
148 | } else { | |
149 | l = len; | |
150 | c = 1; | |
151 | while (l >>= 2) { | |
152 | c <<= 1; | |
153 | } | |
154 | blength = 0; | |
155 | do { | |
156 | blength |= c; | |
fb55e28d | 157 | if (len < (uint64)blength * blength) |
195bd906 S |
158 | blength &= ~c; |
159 | c >>= 1; | |
160 | } while (c >= 8); /* round to multiple of 8 */ | |
161 | blength = MAX(blength, BLOCK_SIZE); | |
162 | } | |
163 | ||
d04e9c51 | 164 | if (protocol_version < 27) { |
195bd906 S |
165 | s2length = csum_length; |
166 | } else if (csum_length == SUM_LENGTH) { | |
167 | s2length = SUM_LENGTH; | |
168 | } else { | |
169 | b = BLOCKSUM_BIAS; | |
170 | l = len; | |
171 | while (l >>= 1) { | |
172 | b += 2; | |
173 | } | |
174 | c = blength; | |
175 | while (c >>= 1 && b) { | |
176 | b--; | |
177 | } | |
178 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
179 | * subtract rollsum, | |
180 | * round up | |
181 | * --optimize in compiler-- | |
182 | */ | |
183 | s2length = MAX(s2length, csum_length); | |
184 | s2length = MIN(s2length, SUM_LENGTH); | |
185 | } | |
186 | ||
187 | sum->flength = len; | |
188 | sum->blength = blength; | |
189 | sum->s2length = s2length; | |
190 | sum->count = (len + (blength - 1)) / blength; | |
191 | sum->remainder = (len % blength); | |
192 | ||
193 | if (sum->count && verbose > 2) { | |
194 | rprintf(FINFO, "count=%ld rem=%ld blength=%ld s2length=%ld flength=%.0f\n", | |
195 | (long) sum->count, (long) sum->remainder, | |
196 | (long) sum->blength, (long) sum->s2length, | |
197 | (double) sum->flength); | |
198 | } | |
199 | } | |
80605142 | 200 | |
bceec82f MP |
201 | /** |
202 | * Perhaps we want to just send an empty checksum set for this file, | |
203 | * which will force the whole thing to be literally transferred. | |
204 | * | |
205 | * When do we do this? If the user's explicitly said they | |
206 | * want the whole thing, or if { they haven't explicitly | |
207 | * requested a delta, and it's local but not batch mode.} | |
208 | * | |
209 | * Whew. */ | |
210 | static BOOL disable_deltas_p(void) | |
211 | { | |
2cda2560 | 212 | extern int whole_file; |
bceec82f MP |
213 | extern int local_server; |
214 | extern int write_batch; | |
215 | ||
2cda2560 | 216 | if (whole_file > 0) |
bceec82f | 217 | return True; |
2cda2560 | 218 | if (whole_file == 0 || write_batch) |
bceec82f | 219 | return False; |
2cda2560 | 220 | return local_server; |
bceec82f MP |
221 | } |
222 | ||
223 | ||
80605142 WD |
224 | /* |
225 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 226 | * |
80605142 WD |
227 | * Generate approximately one checksum every block_len bytes. |
228 | */ | |
195bd906 | 229 | static void generate_and_send_sums(struct map_struct *buf, OFF_T len, int f_out) |
2f03f956 | 230 | { |
80605142 WD |
231 | size_t i; |
232 | struct sum_struct sum; | |
2f03f956 AT |
233 | OFF_T offset = 0; |
234 | ||
423dba8e | 235 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 236 | |
fc0257c9 | 237 | write_sum_head(f_out, &sum); |
2f03f956 | 238 | |
80605142 | 239 | for (i = 0; i < sum.count; i++) { |
195bd906 | 240 | int n1 = MIN(len, sum.blength); |
e66dfd18 | 241 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
242 | uint32 sum1 = get_checksum1(map, n1); |
243 | char sum2[SUM_LENGTH]; | |
2f03f956 | 244 | |
80605142 | 245 | get_checksum2(map, n1, sum2); |
2f03f956 | 246 | |
80605142 | 247 | if (verbose > 3) { |
e66dfd18 | 248 | rprintf(FINFO, |
8801138b WD |
249 | "chunk[%ld] offset=%.0f len=%d sum1=%08lx\n", |
250 | (long)i,(double)offset,n1,(unsigned long)sum1); | |
80605142 WD |
251 | } |
252 | write_int(f_out, sum1); | |
fc0257c9 | 253 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
254 | len -= n1; |
255 | offset += n1; | |
256 | } | |
2f03f956 AT |
257 | } |
258 | ||
259 | ||
ef1aa910 | 260 | |
420ef2c4 MP |
261 | /** |
262 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
263 | * |
264 | * First fixes up permissions, then generates checksums for the file. | |
265 | * | |
420ef2c4 MP |
266 | * @note This comment was added later by mbp who was trying to work it |
267 | * out. It might be wrong. | |
2cda2560 | 268 | **/ |
420ef2c4 | 269 | void recv_generator(char *fname, struct file_list *flist, int i, int f_out) |
2cda2560 | 270 | { |
2f03f956 AT |
271 | int fd; |
272 | STRUCT_STAT st; | |
968c8030 | 273 | struct map_struct *mapbuf; |
2f03f956 AT |
274 | int statret; |
275 | struct file_struct *file = flist->files[i]; | |
375a4556 DD |
276 | char *fnamecmp; |
277 | char fnamecmpbuf[MAXPATHLEN]; | |
278 | extern char *compare_dest; | |
f7632fc6 | 279 | extern int list_only; |
1347d512 | 280 | extern int only_existing; |
b35d0d8e | 281 | extern int orig_umask; |
f7632fc6 AT |
282 | |
283 | if (list_only) return; | |
2f03f956 AT |
284 | |
285 | if (verbose > 2) | |
286 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
287 | ||
288 | statret = link_stat(fname,&st); | |
63787382 | 289 | |
1347d512 AT |
290 | if (only_existing && statret == -1 && errno == ENOENT) { |
291 | /* we only want to update existing files */ | |
1bbd10fe | 292 | if (verbose > 1) rprintf(FINFO, "not creating new file \"%s\"\n",fname); |
1347d512 AT |
293 | return; |
294 | } | |
295 | ||
2cda2560 WD |
296 | if (statret == 0 && |
297 | !preserve_perms && | |
4df9f368 AT |
298 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
299 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
300 | * permissions then act as though the remote end sent |
301 | * us the file permissions we already have */ | |
7e0ca8e2 | 302 | file->mode = (file->mode & _S_IFMT) | (st.st_mode & ~_S_IFMT); |
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 | ||
85d4d142 | 312 | if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */ |
2f03f956 | 313 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 314 | if (robust_unlink(fname) != 0) { |
ea42541f WD |
315 | rprintf(FERROR, |
316 | "recv_generator: unlink %s to make room for directory: %s\n", | |
317 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
318 | return; |
319 | } | |
320 | statret = -1; | |
321 | } | |
322 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
2cda2560 WD |
323 | if (!(relative_paths && errno==ENOENT && |
324 | create_directory_path(fname, orig_umask)==0 && | |
2f03f956 | 325 | do_mkdir(fname,file->mode)==0)) { |
ea42541f WD |
326 | rprintf(FERROR, "recv_generator: mkdir %s failed: %s\n", |
327 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
328 | } |
329 | } | |
2cda2560 | 330 | /* f_out is set to -1 when doing final directory |
de343e3c | 331 | permission and modification time repair */ |
2cda2560 | 332 | if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) |
2f03f956 AT |
333 | rprintf(FINFO,"%s/\n",fname); |
334 | return; | |
335 | } | |
336 | ||
337 | if (preserve_links && S_ISLNK(file->mode)) { | |
338 | #if SUPPORT_LINKS | |
339 | char lnk[MAXPATHLEN]; | |
340 | int l; | |
341 | extern int safe_symlinks; | |
342 | ||
343 | if (safe_symlinks && unsafe_symlink(file->link, fname)) { | |
344 | if (verbose) { | |
ea42541f WD |
345 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
346 | full_fname(fname), file->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. */ | |
7e0ca8e2 | 357 | if (strcmp(lnk,file->link) == 0) { |
2f03f956 AT |
358 | set_perms(fname,file,&st,1); |
359 | return; | |
360 | } | |
2cda2560 | 361 | } |
85d4d142 MP |
362 | /* Not a symlink, so delete whatever's |
363 | * already there and put a new symlink | |
2cda2560 | 364 | * in place. */ |
4b3977bf | 365 | delete_file(fname); |
2f03f956 | 366 | } |
2f03f956 | 367 | if (do_symlink(file->link,fname) != 0) { |
ea42541f WD |
368 | rprintf(FERROR, "symlink %s -> \"%s\" failed: %s\n", |
369 | full_fname(fname), file->link, strerror(errno)); | |
2f03f956 AT |
370 | } else { |
371 | set_perms(fname,file,NULL,0); | |
372 | if (verbose) { | |
1bbd10fe | 373 | rprintf(FINFO,"%s -> %s\n", fname,file->link); |
2f03f956 AT |
374 | } |
375 | } | |
376 | #endif | |
377 | return; | |
378 | } | |
379 | ||
380 | #ifdef HAVE_MKNOD | |
381 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 382 | if (statret != 0 || |
2f03f956 | 383 | st.st_mode != file->mode || |
365346ca | 384 | (DEV64_T)st.st_rdev != file->rdev) { |
2f03f956 AT |
385 | delete_file(fname); |
386 | if (verbose > 2) | |
387 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", | |
388 | fname,(int)file->mode,(int)file->rdev); | |
389 | if (do_mknod(fname,file->mode,file->rdev) != 0) { | |
ea42541f WD |
390 | rprintf(FERROR, "mknod %s failed: %s\n", |
391 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
392 | } else { |
393 | set_perms(fname,file,NULL,0); | |
394 | if (verbose) | |
395 | rprintf(FINFO,"%s\n",fname); | |
396 | } | |
397 | } else { | |
398 | set_perms(fname,file,&st,1); | |
399 | } | |
400 | return; | |
401 | } | |
402 | #endif | |
403 | ||
404 | if (preserve_hard_links && check_hard_link(file)) { | |
e7bc9b64 WD |
405 | if (verbose > 1) { |
406 | rprintf(FINFO, "recv_generator: \"%s\" is a hard link\n", | |
407 | f_name(file)); | |
408 | } | |
2f03f956 AT |
409 | return; |
410 | } | |
411 | ||
412 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 413 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
414 | return; |
415 | } | |
416 | ||
375a4556 DD |
417 | fnamecmp = fname; |
418 | ||
419 | if ((statret == -1) && (compare_dest != NULL)) { | |
420 | /* try the file at compare_dest instead */ | |
421 | int saveerrno = errno; | |
8950ac03 | 422 | snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname); |
375a4556 DD |
423 | statret = link_stat(fnamecmpbuf,&st); |
424 | if (!S_ISREG(st.st_mode)) | |
425 | statret = -1; | |
426 | if (statret == -1) | |
427 | errno = saveerrno; | |
59c95e42 DD |
428 | #if HAVE_LINK |
429 | else if (link_dest && !dry_run) { | |
430 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 431 | if (verbose > 0) { |
59c95e42 | 432 | rprintf(FINFO,"link %s => %s : %s\n", |
e7bc9b64 | 433 | fnamecmpbuf, fname, |
59c95e42 | 434 | strerror(errno)); |
e7bc9b64 | 435 | } |
59c95e42 DD |
436 | } |
437 | fnamecmp = fnamecmpbuf; | |
438 | } | |
439 | #endif | |
375a4556 DD |
440 | else |
441 | fnamecmp = fnamecmpbuf; | |
442 | } | |
443 | ||
2f03f956 AT |
444 | if (statret == -1) { |
445 | if (errno == ENOENT) { | |
446 | write_int(f_out,i); | |
fc0257c9 | 447 | if (!dry_run) write_sum_head(f_out, NULL); |
ea42541f WD |
448 | } else if (verbose > 1) { |
449 | rprintf(FERROR, | |
450 | "recv_generator: failed to open %s: %s\n", | |
451 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
452 | } |
453 | return; | |
454 | } | |
455 | ||
456 | if (!S_ISREG(st.st_mode)) { | |
457 | if (delete_file(fname) != 0) { | |
458 | return; | |
459 | } | |
460 | ||
461 | /* now pretend the file didn't exist */ | |
462 | write_int(f_out,i); | |
fc0257c9 | 463 | if (!dry_run) 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 | |
5b56cc19 | 473 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
474 | if (verbose > 1) |
475 | rprintf(FINFO,"%s is newer\n",fname); | |
476 | return; | |
477 | } | |
478 | ||
479 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 DD |
480 | if (fnamecmp == fname) |
481 | set_perms(fname,file,&st,1); | |
2f03f956 AT |
482 | return; |
483 | } | |
484 | ||
485 | if (dry_run) { | |
486 | write_int(f_out,i); | |
487 | return; | |
488 | } | |
489 | ||
bceec82f | 490 | if (disable_deltas_p()) { |
2f03f956 | 491 | write_int(f_out,i); |
fc0257c9 | 492 | write_sum_head(f_out, NULL); |
2f03f956 AT |
493 | return; |
494 | } | |
495 | ||
2cda2560 | 496 | /* open the file */ |
8c9fd200 | 497 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
498 | |
499 | if (fd == -1) { | |
ea42541f WD |
500 | rprintf(FERROR, "failed to open %s, continuing: %s\n", |
501 | full_fname(fnamecmp), strerror(errno)); | |
60be6acf DD |
502 | /* pretend the file didn't exist */ |
503 | write_int(f_out,i); | |
fc0257c9 | 504 | write_sum_head(f_out, NULL); |
2f03f956 AT |
505 | return; |
506 | } | |
507 | ||
968c8030 WD |
508 | if (st.st_size > 0) |
509 | mapbuf = map_file(fd,st.st_size); | |
510 | else | |
511 | mapbuf = NULL; | |
2f03f956 AT |
512 | |
513 | if (verbose > 3) | |
5f808dfb | 514 | rprintf(FINFO,"gen mapped %s of size %.0f\n",fnamecmp,(double)st.st_size); |
2f03f956 | 515 | |
2f03f956 | 516 | if (verbose > 2) |
80605142 | 517 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
518 | |
519 | write_int(f_out,i); | |
968c8030 | 520 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
521 | |
522 | close(fd); | |
968c8030 | 523 | if (mapbuf) unmap_file(mapbuf); |
2f03f956 AT |
524 | } |
525 | ||
526 | ||
527 | ||
528 | void generate_files(int f,struct file_list *flist,char *local_name,int f_recv) | |
529 | { | |
530 | int i; | |
531 | int phase=0; | |
968c8030 | 532 | char fbuf[MAXPATHLEN]; |
2f03f956 AT |
533 | |
534 | if (verbose > 2) | |
535 | rprintf(FINFO,"generator starting pid=%d count=%d\n", | |
536 | (int)getpid(),flist->count); | |
537 | ||
3e7053ac MP |
538 | if (verbose >= 2) { |
539 | rprintf(FINFO, | |
2cda2560 | 540 | disable_deltas_p() |
3e7053ac MP |
541 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
542 | : "delta transmission enabled\n"); | |
543 | } | |
2cda2560 | 544 | |
a57873b7 AT |
545 | /* we expect to just sit around now, so don't exit on a |
546 | timeout. If we really get a timeout then the other process should | |
547 | exit */ | |
548 | io_timeout = 0; | |
549 | ||
2f03f956 AT |
550 | for (i = 0; i < flist->count; i++) { |
551 | struct file_struct *file = flist->files[i]; | |
552 | mode_t saved_mode = file->mode; | |
553 | if (!file->basename) continue; | |
554 | ||
555 | /* we need to ensure that any directories we create have writeable | |
556 | permissions initially so that we can create the files within | |
557 | them. This is then fixed after the files are transferred */ | |
558 | if (!am_root && S_ISDIR(file->mode)) { | |
559 | file->mode |= S_IWUSR; /* user write */ | |
2cda2560 WD |
560 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
561 | * handling of permissions is strange? */ | |
2f03f956 AT |
562 | } |
563 | ||
e7bc9b64 | 564 | recv_generator(local_name? local_name |
968c8030 | 565 | : f_name_to(file,fbuf,sizeof fbuf), flist, i, f); |
2f03f956 AT |
566 | |
567 | file->mode = saved_mode; | |
568 | } | |
569 | ||
570 | phase++; | |
571 | csum_length = SUM_LENGTH; | |
572 | ignore_times=1; | |
573 | ||
574 | if (verbose > 2) | |
575 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
576 | ||
577 | write_int(f,-1); | |
578 | ||
bc63ae3f S |
579 | /* files can cycle through the system more than once |
580 | * to catch initial checksum errors */ | |
e7bc9b64 | 581 | for (i = read_int(f_recv); i != -1; i = read_int(f_recv)) { |
bc63ae3f | 582 | struct file_struct *file = flist->files[i]; |
e7bc9b64 | 583 | recv_generator(local_name? local_name |
968c8030 | 584 | : f_name_to(file,fbuf,sizeof fbuf), flist, i, f); |
bc63ae3f | 585 | } |
2f03f956 | 586 | |
bc63ae3f S |
587 | phase++; |
588 | if (verbose > 2) | |
589 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 590 | |
bc63ae3f | 591 | write_int(f,-1); |
2f03f956 | 592 | } |