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 */ | |
dfd5ba6a | 49 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) |
2f03f956 AT |
50 | { |
51 | if (st->st_size != file->length) { | |
52 | return 0; | |
53 | } | |
59c95e42 | 54 | if (link_dest) { |
e7bc9b64 | 55 | if (preserve_perms |
a60e2dca | 56 | && (st->st_mode & ~_S_IFMT) != (file->mode & ~_S_IFMT)) |
bb24028f S |
57 | return 0; |
58 | ||
6744b62d | 59 | if (am_root && preserve_uid && st->st_uid != file->uid) |
59c95e42 | 60 | return 0; |
bb24028f | 61 | |
a60e2dca S |
62 | if (preserve_gid && file->gid != GID_NONE |
63 | && st->st_gid != file->gid) | |
59c95e42 | 64 | return 0; |
59c95e42 DD |
65 | } |
66 | ||
2cda2560 | 67 | /* if always checksum is set then we use the checksum instead |
2f03f956 AT |
68 | of the file time to determine whether to sync */ |
69 | if (always_checksum && S_ISREG(st->st_mode)) { | |
70 | char sum[MD4_SUM_LENGTH]; | |
60c8d7bc DD |
71 | char fnamecmpdest[MAXPATHLEN]; |
72 | ||
73 | if (compare_dest != NULL) { | |
74 | if (access(fname, 0) != 0) { | |
8950ac03 | 75 | snprintf(fnamecmpdest,MAXPATHLEN,"%s/%s", |
2cda2560 | 76 | compare_dest,fname); |
60c8d7bc DD |
77 | fname = fnamecmpdest; |
78 | } | |
79 | } | |
2f03f956 | 80 | file_checksum(fname,sum,st->st_size); |
728d0922 | 81 | return memcmp(sum, file->u.sum, protocol_version < 21 ? 2 |
4499c0ee | 82 | : MD4_SUM_LENGTH) == 0; |
2f03f956 AT |
83 | } |
84 | ||
f83f0548 AT |
85 | if (size_only) { |
86 | return 1; | |
87 | } | |
88 | ||
2f03f956 AT |
89 | if (ignore_times) { |
90 | return 0; | |
91 | } | |
92 | ||
5b56cc19 | 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 | ||
104 | if (sum == (struct sum_struct *)NULL) | |
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 | ||
195bd906 S |
114 | /* |
115 | * set (initialize) the size entries in the per-file sum_struct | |
116 | * calulating dynamic block ans checksum sizes. | |
117 | * | |
118 | * This is only called from generate_and_send_sums() but is a seperate | |
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 | extern unsigned int block_size; |
135 | unsigned int blength; | |
136 | int s2length; | |
195bd906 S |
137 | uint32 c; |
138 | uint64 l; | |
139 | ||
140 | if (block_size) { | |
141 | blength = block_size; | |
142 | } else if (len <= BLOCK_SIZE * BLOCK_SIZE) { | |
143 | blength = BLOCK_SIZE; | |
144 | } else { | |
145 | l = len; | |
146 | c = 1; | |
147 | while (l >>= 2) { | |
148 | c <<= 1; | |
149 | } | |
150 | blength = 0; | |
151 | do { | |
152 | blength |= c; | |
fb55e28d | 153 | if (len < (uint64)blength * blength) |
195bd906 S |
154 | blength &= ~c; |
155 | c >>= 1; | |
156 | } while (c >= 8); /* round to multiple of 8 */ | |
157 | blength = MAX(blength, BLOCK_SIZE); | |
158 | } | |
159 | ||
d04e9c51 | 160 | if (protocol_version < 27) { |
195bd906 S |
161 | s2length = csum_length; |
162 | } else if (csum_length == SUM_LENGTH) { | |
163 | s2length = SUM_LENGTH; | |
164 | } else { | |
da9d12f5 | 165 | int b = BLOCKSUM_BIAS; |
195bd906 S |
166 | l = len; |
167 | while (l >>= 1) { | |
168 | b += 2; | |
169 | } | |
170 | c = blength; | |
171 | while (c >>= 1 && b) { | |
172 | b--; | |
173 | } | |
174 | s2length = (b + 1 - 32 + 7) / 8; /* add a bit, | |
175 | * subtract rollsum, | |
176 | * round up | |
177 | * --optimize in compiler-- | |
178 | */ | |
179 | s2length = MAX(s2length, csum_length); | |
180 | s2length = MIN(s2length, SUM_LENGTH); | |
181 | } | |
182 | ||
183 | sum->flength = len; | |
184 | sum->blength = blength; | |
185 | sum->s2length = s2length; | |
186 | sum->count = (len + (blength - 1)) / blength; | |
187 | sum->remainder = (len % blength); | |
188 | ||
189 | if (sum->count && verbose > 2) { | |
0e36d9da WD |
190 | rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n", |
191 | (double)sum->count, sum->remainder, sum->blength, | |
da9d12f5 | 192 | sum->s2length, (double)sum->flength); |
195bd906 S |
193 | } |
194 | } | |
80605142 | 195 | |
bceec82f MP |
196 | /** |
197 | * Perhaps we want to just send an empty checksum set for this file, | |
198 | * which will force the whole thing to be literally transferred. | |
199 | * | |
200 | * When do we do this? If the user's explicitly said they | |
201 | * want the whole thing, or if { they haven't explicitly | |
202 | * requested a delta, and it's local but not batch mode.} | |
203 | * | |
204 | * Whew. */ | |
205 | static BOOL disable_deltas_p(void) | |
206 | { | |
2cda2560 | 207 | extern int whole_file; |
bceec82f MP |
208 | extern int local_server; |
209 | extern int write_batch; | |
210 | ||
2cda2560 | 211 | if (whole_file > 0) |
bceec82f | 212 | return True; |
2cda2560 | 213 | if (whole_file == 0 || write_batch) |
bceec82f | 214 | return False; |
2cda2560 | 215 | return local_server; |
bceec82f MP |
216 | } |
217 | ||
218 | ||
80605142 WD |
219 | /* |
220 | * Generate and send a stream of signatures/checksums that describe a buffer | |
e66dfd18 | 221 | * |
80605142 WD |
222 | * Generate approximately one checksum every block_len bytes. |
223 | */ | |
2990e06f | 224 | static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out) |
2f03f956 | 225 | { |
80605142 WD |
226 | size_t i; |
227 | struct sum_struct sum; | |
2f03f956 AT |
228 | OFF_T offset = 0; |
229 | ||
423dba8e | 230 | sum_sizes_sqroot(&sum, len); |
e66dfd18 | 231 | |
fc0257c9 | 232 | write_sum_head(f_out, &sum); |
2f03f956 | 233 | |
80605142 | 234 | for (i = 0; i < sum.count; i++) { |
0e36d9da | 235 | unsigned int n1 = MIN(len, sum.blength); |
e66dfd18 | 236 | char *map = map_ptr(buf, offset, n1); |
80605142 WD |
237 | uint32 sum1 = get_checksum1(map, n1); |
238 | char sum2[SUM_LENGTH]; | |
2f03f956 | 239 | |
80605142 | 240 | get_checksum2(map, n1, sum2); |
2f03f956 | 241 | |
80605142 | 242 | if (verbose > 3) { |
e66dfd18 | 243 | rprintf(FINFO, |
0e36d9da WD |
244 | "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n", |
245 | (double)i, (double)offset, n1, | |
246 | (unsigned long)sum1); | |
80605142 WD |
247 | } |
248 | write_int(f_out, sum1); | |
fc0257c9 | 249 | write_buf(f_out, sum2, sum.s2length); |
2f03f956 AT |
250 | len -= n1; |
251 | offset += n1; | |
252 | } | |
2f03f956 AT |
253 | } |
254 | ||
255 | ||
ef1aa910 | 256 | |
420ef2c4 MP |
257 | /** |
258 | * Acts on file number @p i from @p flist, whose name is @p fname. | |
ef1aa910 MP |
259 | * |
260 | * First fixes up permissions, then generates checksums for the file. | |
261 | * | |
420ef2c4 MP |
262 | * @note This comment was added later by mbp who was trying to work it |
263 | * out. It might be wrong. | |
2cda2560 | 264 | **/ |
dfd5ba6a | 265 | void recv_generator(char *fname, struct file_struct *file, int i, int f_out) |
2cda2560 | 266 | { |
2f03f956 AT |
267 | int fd; |
268 | STRUCT_STAT st; | |
968c8030 | 269 | struct map_struct *mapbuf; |
2f03f956 | 270 | int statret; |
375a4556 DD |
271 | char *fnamecmp; |
272 | char fnamecmpbuf[MAXPATHLEN]; | |
273 | extern char *compare_dest; | |
f7632fc6 | 274 | extern int list_only; |
1347d512 | 275 | extern int only_existing; |
b35d0d8e | 276 | extern int orig_umask; |
f7632fc6 | 277 | |
dfd5ba6a WD |
278 | if (list_only) |
279 | return; | |
2f03f956 AT |
280 | |
281 | if (verbose > 2) | |
282 | rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i); | |
283 | ||
284 | statret = link_stat(fname,&st); | |
63787382 | 285 | |
1347d512 AT |
286 | if (only_existing && statret == -1 && errno == ENOENT) { |
287 | /* we only want to update existing files */ | |
1bbd10fe | 288 | if (verbose > 1) rprintf(FINFO, "not creating new file \"%s\"\n",fname); |
1347d512 AT |
289 | return; |
290 | } | |
291 | ||
2cda2560 WD |
292 | if (statret == 0 && |
293 | !preserve_perms && | |
4df9f368 AT |
294 | (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) { |
295 | /* if the file exists already and we aren't perserving | |
2cda2560 WD |
296 | * permissions then act as though the remote end sent |
297 | * us the file permissions we already have */ | |
7e0ca8e2 | 298 | file->mode = (file->mode & _S_IFMT) | (st.st_mode & ~_S_IFMT); |
4df9f368 AT |
299 | } |
300 | ||
2f03f956 | 301 | if (S_ISDIR(file->mode)) { |
2cda2560 WD |
302 | /* The file to be received is a directory, so we need |
303 | * to prepare appropriately. If there is already a | |
304 | * file of that name and it is *not* a directory, then | |
305 | * we need to delete it. If it doesn't exist, then | |
306 | * recursively create it. */ | |
307 | ||
85d4d142 | 308 | if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */ |
2f03f956 | 309 | if (statret == 0 && !S_ISDIR(st.st_mode)) { |
c7c11a0d | 310 | if (robust_unlink(fname) != 0) { |
ea42541f WD |
311 | rprintf(FERROR, |
312 | "recv_generator: unlink %s to make room for directory: %s\n", | |
313 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
314 | return; |
315 | } | |
316 | statret = -1; | |
317 | } | |
318 | if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) { | |
2cda2560 WD |
319 | if (!(relative_paths && errno==ENOENT && |
320 | create_directory_path(fname, orig_umask)==0 && | |
2f03f956 | 321 | do_mkdir(fname,file->mode)==0)) { |
ea42541f WD |
322 | rprintf(FERROR, "recv_generator: mkdir %s failed: %s\n", |
323 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
324 | } |
325 | } | |
2cda2560 | 326 | /* f_out is set to -1 when doing final directory |
de343e3c | 327 | permission and modification time repair */ |
2cda2560 | 328 | if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) |
2f03f956 AT |
329 | rprintf(FINFO,"%s/\n",fname); |
330 | return; | |
331 | } | |
332 | ||
333 | if (preserve_links && S_ISLNK(file->mode)) { | |
334 | #if SUPPORT_LINKS | |
335 | char lnk[MAXPATHLEN]; | |
336 | int l; | |
337 | extern int safe_symlinks; | |
338 | ||
728d0922 | 339 | if (safe_symlinks && unsafe_symlink(file->u.link, fname)) { |
2f03f956 | 340 | if (verbose) { |
ea42541f | 341 | rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n", |
728d0922 | 342 | full_fname(fname), file->u.link); |
2f03f956 AT |
343 | } |
344 | return; | |
345 | } | |
346 | if (statret == 0) { | |
347 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
348 | if (l > 0) { | |
349 | lnk[l] = 0; | |
85d4d142 MP |
350 | /* A link already pointing to the |
351 | * right place -- no further action | |
352 | * required. */ | |
728d0922 | 353 | if (strcmp(lnk,file->u.link) == 0) { |
2f03f956 AT |
354 | set_perms(fname,file,&st,1); |
355 | return; | |
356 | } | |
2cda2560 | 357 | } |
85d4d142 MP |
358 | /* Not a symlink, so delete whatever's |
359 | * already there and put a new symlink | |
2cda2560 | 360 | * in place. */ |
4b3977bf | 361 | delete_file(fname); |
2f03f956 | 362 | } |
728d0922 | 363 | if (do_symlink(file->u.link,fname) != 0) { |
ea42541f | 364 | rprintf(FERROR, "symlink %s -> \"%s\" failed: %s\n", |
728d0922 | 365 | full_fname(fname), file->u.link, strerror(errno)); |
2f03f956 AT |
366 | } else { |
367 | set_perms(fname,file,NULL,0); | |
368 | if (verbose) { | |
728d0922 | 369 | rprintf(FINFO,"%s -> %s\n", fname,file->u.link); |
2f03f956 AT |
370 | } |
371 | } | |
372 | #endif | |
373 | return; | |
374 | } | |
375 | ||
376 | #ifdef HAVE_MKNOD | |
377 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { | |
2cda2560 | 378 | if (statret != 0 || |
2f03f956 | 379 | st.st_mode != file->mode || |
728d0922 | 380 | (DEV64_T)st.st_rdev != file->u.rdev) { |
2f03f956 AT |
381 | delete_file(fname); |
382 | if (verbose > 2) | |
383 | rprintf(FINFO,"mknod(%s,0%o,0x%x)\n", | |
728d0922 WD |
384 | fname,(int)file->mode,(int)file->u.rdev); |
385 | if (do_mknod(fname,file->mode,file->u.rdev) != 0) { | |
ea42541f WD |
386 | rprintf(FERROR, "mknod %s failed: %s\n", |
387 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
388 | } else { |
389 | set_perms(fname,file,NULL,0); | |
390 | if (verbose) | |
391 | rprintf(FINFO,"%s\n",fname); | |
392 | } | |
393 | } else { | |
394 | set_perms(fname,file,&st,1); | |
395 | } | |
396 | return; | |
397 | } | |
398 | #endif | |
399 | ||
aa23c220 | 400 | if (preserve_hard_links && file->link_u.links && file->F_HEAD != file) { |
e7bc9b64 WD |
401 | if (verbose > 1) { |
402 | rprintf(FINFO, "recv_generator: \"%s\" is a hard link\n", | |
403 | f_name(file)); | |
404 | } | |
2f03f956 AT |
405 | return; |
406 | } | |
407 | ||
408 | if (!S_ISREG(file->mode)) { | |
1bbd10fe | 409 | rprintf(FINFO, "skipping non-regular file \"%s\"\n",fname); |
2f03f956 AT |
410 | return; |
411 | } | |
412 | ||
375a4556 DD |
413 | fnamecmp = fname; |
414 | ||
415 | if ((statret == -1) && (compare_dest != NULL)) { | |
416 | /* try the file at compare_dest instead */ | |
417 | int saveerrno = errno; | |
8950ac03 | 418 | snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname); |
375a4556 DD |
419 | statret = link_stat(fnamecmpbuf,&st); |
420 | if (!S_ISREG(st.st_mode)) | |
421 | statret = -1; | |
422 | if (statret == -1) | |
423 | errno = saveerrno; | |
59c95e42 DD |
424 | #if HAVE_LINK |
425 | else if (link_dest && !dry_run) { | |
426 | if (do_link(fnamecmpbuf, fname) != 0) { | |
e7bc9b64 | 427 | if (verbose > 0) { |
59c95e42 | 428 | rprintf(FINFO,"link %s => %s : %s\n", |
e7bc9b64 | 429 | fnamecmpbuf, fname, |
59c95e42 | 430 | strerror(errno)); |
e7bc9b64 | 431 | } |
59c95e42 DD |
432 | } |
433 | fnamecmp = fnamecmpbuf; | |
434 | } | |
435 | #endif | |
375a4556 DD |
436 | else |
437 | fnamecmp = fnamecmpbuf; | |
438 | } | |
439 | ||
2f03f956 AT |
440 | if (statret == -1) { |
441 | if (errno == ENOENT) { | |
442 | write_int(f_out,i); | |
fc0257c9 | 443 | if (!dry_run) write_sum_head(f_out, NULL); |
ea42541f WD |
444 | } else if (verbose > 1) { |
445 | rprintf(FERROR, | |
446 | "recv_generator: failed to open %s: %s\n", | |
447 | full_fname(fname), strerror(errno)); | |
2f03f956 AT |
448 | } |
449 | return; | |
450 | } | |
451 | ||
452 | if (!S_ISREG(st.st_mode)) { | |
453 | if (delete_file(fname) != 0) { | |
454 | return; | |
455 | } | |
456 | ||
457 | /* now pretend the file didn't exist */ | |
458 | write_int(f_out,i); | |
fc0257c9 | 459 | if (!dry_run) write_sum_head(f_out, NULL); |
2f03f956 AT |
460 | return; |
461 | } | |
462 | ||
2cda2560 | 463 | if (opt_ignore_existing && fnamecmp == fname) { |
3d6feada MP |
464 | if (verbose > 1) |
465 | rprintf(FINFO,"%s exists\n",fname); | |
466 | return; | |
2cda2560 | 467 | } |
3d6feada | 468 | |
5b56cc19 | 469 | if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) { |
2f03f956 AT |
470 | if (verbose > 1) |
471 | rprintf(FINFO,"%s is newer\n",fname); | |
472 | return; | |
473 | } | |
474 | ||
475 | if (skip_file(fname, file, &st)) { | |
bd4ed7f7 DD |
476 | if (fnamecmp == fname) |
477 | set_perms(fname,file,&st,1); | |
2f03f956 AT |
478 | return; |
479 | } | |
480 | ||
481 | if (dry_run) { | |
482 | write_int(f_out,i); | |
483 | return; | |
484 | } | |
485 | ||
bceec82f | 486 | if (disable_deltas_p()) { |
2f03f956 | 487 | write_int(f_out,i); |
fc0257c9 | 488 | write_sum_head(f_out, NULL); |
2f03f956 AT |
489 | return; |
490 | } | |
491 | ||
2cda2560 | 492 | /* open the file */ |
8c9fd200 | 493 | fd = do_open(fnamecmp, O_RDONLY, 0); |
2f03f956 AT |
494 | |
495 | if (fd == -1) { | |
ea42541f WD |
496 | rprintf(FERROR, "failed to open %s, continuing: %s\n", |
497 | full_fname(fnamecmp), strerror(errno)); | |
60be6acf DD |
498 | /* pretend the file didn't exist */ |
499 | write_int(f_out,i); | |
fc0257c9 | 500 | write_sum_head(f_out, NULL); |
2f03f956 AT |
501 | return; |
502 | } | |
503 | ||
968c8030 WD |
504 | if (st.st_size > 0) |
505 | mapbuf = map_file(fd,st.st_size); | |
506 | else | |
507 | mapbuf = NULL; | |
2f03f956 | 508 | |
dfd5ba6a WD |
509 | if (verbose > 3) { |
510 | rprintf(FINFO,"gen mapped %s of size %.0f\n", fnamecmp, | |
511 | (double)st.st_size); | |
512 | } | |
2f03f956 | 513 | |
2f03f956 | 514 | if (verbose > 2) |
80605142 | 515 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
2f03f956 AT |
516 | |
517 | write_int(f_out,i); | |
968c8030 | 518 | generate_and_send_sums(mapbuf, st.st_size, f_out); |
2f03f956 AT |
519 | |
520 | close(fd); | |
968c8030 | 521 | if (mapbuf) unmap_file(mapbuf); |
2f03f956 AT |
522 | } |
523 | ||
524 | ||
b9b15fb1 | 525 | void generate_files(int f, struct file_list *flist, char *local_name) |
2f03f956 AT |
526 | { |
527 | int i; | |
528 | int phase=0; | |
968c8030 | 529 | char fbuf[MAXPATHLEN]; |
2f03f956 AT |
530 | |
531 | if (verbose > 2) | |
532 | rprintf(FINFO,"generator starting pid=%d count=%d\n", | |
533 | (int)getpid(),flist->count); | |
534 | ||
3e7053ac MP |
535 | if (verbose >= 2) { |
536 | rprintf(FINFO, | |
2cda2560 | 537 | disable_deltas_p() |
3e7053ac MP |
538 | ? "delta-transmission disabled for local transfer or --whole-file\n" |
539 | : "delta transmission enabled\n"); | |
540 | } | |
2cda2560 | 541 | |
a57873b7 AT |
542 | /* we expect to just sit around now, so don't exit on a |
543 | timeout. If we really get a timeout then the other process should | |
544 | exit */ | |
545 | io_timeout = 0; | |
546 | ||
2f03f956 AT |
547 | for (i = 0; i < flist->count; i++) { |
548 | struct file_struct *file = flist->files[i]; | |
dfd5ba6a | 549 | struct file_struct copy; |
2f03f956 | 550 | |
dfd5ba6a WD |
551 | if (!file->basename) |
552 | continue; | |
2f03f956 AT |
553 | /* we need to ensure that any directories we create have writeable |
554 | permissions initially so that we can create the files within | |
555 | them. This is then fixed after the files are transferred */ | |
dfd5ba6a WD |
556 | if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) { |
557 | copy = *file; | |
2cda2560 WD |
558 | /* XXX: Could this be causing a problem on SCO? Perhaps their |
559 | * handling of permissions is strange? */ | |
dfd5ba6a WD |
560 | copy.mode |= S_IWUSR; /* user write */ |
561 | file = © | |
2f03f956 AT |
562 | } |
563 | ||
e7bc9b64 | 564 | recv_generator(local_name? local_name |
dfd5ba6a | 565 | : f_name_to(file,fbuf,sizeof fbuf), file, i, f); |
2f03f956 AT |
566 | } |
567 | ||
568 | phase++; | |
569 | csum_length = SUM_LENGTH; | |
570 | ignore_times=1; | |
571 | ||
572 | if (verbose > 2) | |
573 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
574 | ||
575 | write_int(f,-1); | |
576 | ||
bc63ae3f S |
577 | /* files can cycle through the system more than once |
578 | * to catch initial checksum errors */ | |
b9b15fb1 | 579 | while ((i = get_redo_num()) != -1) { |
bc63ae3f | 580 | struct file_struct *file = flist->files[i]; |
e7bc9b64 | 581 | recv_generator(local_name? local_name |
dfd5ba6a | 582 | : f_name_to(file,fbuf,sizeof fbuf), file, i, f); |
bc63ae3f | 583 | } |
2f03f956 | 584 | |
bc63ae3f S |
585 | phase++; |
586 | if (verbose > 2) | |
587 | rprintf(FINFO,"generate_files phase=%d\n",phase); | |
2f03f956 | 588 | |
bc63ae3f | 589 | write_int(f,-1); |
2f03f956 | 590 | } |