Commit | Line | Data |
---|---|---|
c627d613 AT |
1 | /* |
2 | Copyright (C) Andrew Tridgell 1996 | |
3 | Copyright (C) Paul Mackerras 1996 | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include "rsync.h" | |
21 | ||
43a481dc AT |
22 | extern int csum_length; |
23 | ||
c627d613 AT |
24 | extern int verbose; |
25 | extern int am_server; | |
26 | extern int always_checksum; | |
27 | extern time_t starttime; | |
28 | ||
c6e7fcb4 AT |
29 | extern int remote_version; |
30 | ||
c627d613 | 31 | extern char *backup_suffix; |
950ab32d | 32 | extern char *tmpdir; |
c627d613 | 33 | |
82306bf6 | 34 | extern int whole_file; |
c627d613 AT |
35 | extern int block_size; |
36 | extern int update_only; | |
37 | extern int make_backups; | |
38 | extern int preserve_links; | |
dc5ddbcc | 39 | extern int preserve_hard_links; |
c627d613 AT |
40 | extern int preserve_perms; |
41 | extern int preserve_devices; | |
42 | extern int preserve_uid; | |
43 | extern int preserve_gid; | |
44 | extern int preserve_times; | |
45 | extern int dry_run; | |
46 | extern int ignore_times; | |
47 | extern int recurse; | |
48 | extern int delete_mode; | |
49 | extern int cvs_exclude; | |
7b8356d0 | 50 | extern int am_root; |
6574b4f7 | 51 | extern int relative_paths; |
c627d613 AT |
52 | |
53 | /* | |
54 | free a sums struct | |
55 | */ | |
56 | static void free_sums(struct sum_struct *s) | |
57 | { | |
58 | if (s->sums) free(s->sums); | |
59 | free(s); | |
60 | } | |
61 | ||
62 | ||
63 | ||
64 | /* | |
65 | send a sums struct down a fd | |
66 | */ | |
67 | static void send_sums(struct sum_struct *s,int f_out) | |
68 | { | |
69 | int i; | |
70 | ||
71 | /* tell the other guy how many we are going to be doing and how many | |
72 | bytes there are in the last chunk */ | |
73 | write_int(f_out,s?s->count:0); | |
74 | write_int(f_out,s?s->n:block_size); | |
75 | write_int(f_out,s?s->remainder:0); | |
76 | if (s) | |
77 | for (i=0;i<s->count;i++) { | |
78 | write_int(f_out,s->sums[i].sum1); | |
43a481dc | 79 | write_buf(f_out,s->sums[i].sum2,csum_length); |
c627d613 AT |
80 | } |
81 | write_flush(f_out); | |
82 | } | |
83 | ||
84 | ||
85 | /* | |
86 | generate a stream of signatures/checksums that describe a buffer | |
87 | ||
88 | generate approximately one checksum every n bytes | |
89 | */ | |
c6e7fcb4 | 90 | static struct sum_struct *generate_sums(struct map_struct *buf,off_t len,int n) |
c627d613 AT |
91 | { |
92 | int i; | |
93 | struct sum_struct *s; | |
94 | int count; | |
95 | int block_len = n; | |
96 | int remainder = (len%block_len); | |
97 | off_t offset = 0; | |
98 | ||
99 | count = (len+(block_len-1))/block_len; | |
100 | ||
101 | s = (struct sum_struct *)malloc(sizeof(*s)); | |
102 | if (!s) out_of_memory("generate_sums"); | |
103 | ||
104 | s->count = count; | |
105 | s->remainder = remainder; | |
106 | s->n = n; | |
107 | s->flength = len; | |
108 | ||
109 | if (count==0) { | |
110 | s->sums = NULL; | |
111 | return s; | |
112 | } | |
113 | ||
114 | if (verbose > 3) | |
dc5ddbcc | 115 | fprintf(FERROR,"count=%d rem=%d n=%d flength=%d\n", |
c627d613 AT |
116 | s->count,s->remainder,s->n,(int)s->flength); |
117 | ||
118 | s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count); | |
119 | if (!s->sums) out_of_memory("generate_sums"); | |
120 | ||
121 | for (i=0;i<count;i++) { | |
122 | int n1 = MIN(len,n); | |
d9bea2dd | 123 | char *map = map_ptr(buf,offset,n1); |
c627d613 | 124 | |
d9bea2dd AT |
125 | s->sums[i].sum1 = get_checksum1(map,n1); |
126 | get_checksum2(map,n1,s->sums[i].sum2); | |
c627d613 AT |
127 | |
128 | s->sums[i].offset = offset; | |
129 | s->sums[i].len = n1; | |
130 | s->sums[i].i = i; | |
131 | ||
132 | if (verbose > 3) | |
dc5ddbcc | 133 | fprintf(FERROR,"chunk[%d] offset=%d len=%d sum1=%08x\n", |
c627d613 AT |
134 | i,(int)s->sums[i].offset,s->sums[i].len,s->sums[i].sum1); |
135 | ||
136 | len -= n1; | |
c627d613 AT |
137 | offset += n1; |
138 | } | |
139 | ||
140 | return s; | |
141 | } | |
142 | ||
143 | ||
144 | /* | |
145 | receive the checksums for a buffer | |
146 | */ | |
147 | static struct sum_struct *receive_sums(int f) | |
148 | { | |
149 | struct sum_struct *s; | |
150 | int i; | |
151 | off_t offset = 0; | |
c627d613 AT |
152 | |
153 | s = (struct sum_struct *)malloc(sizeof(*s)); | |
154 | if (!s) out_of_memory("receive_sums"); | |
155 | ||
156 | s->count = read_int(f); | |
157 | s->n = read_int(f); | |
158 | s->remainder = read_int(f); | |
159 | s->sums = NULL; | |
160 | ||
161 | if (verbose > 3) | |
dc5ddbcc | 162 | fprintf(FERROR,"count=%d n=%d rem=%d\n", |
c627d613 AT |
163 | s->count,s->n,s->remainder); |
164 | ||
c627d613 AT |
165 | if (s->count == 0) |
166 | return(s); | |
167 | ||
168 | s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count); | |
169 | if (!s->sums) out_of_memory("receive_sums"); | |
170 | ||
171 | for (i=0;i<s->count;i++) { | |
172 | s->sums[i].sum1 = read_int(f); | |
43a481dc | 173 | read_buf(f,s->sums[i].sum2,csum_length); |
c627d613 AT |
174 | |
175 | s->sums[i].offset = offset; | |
176 | s->sums[i].i = i; | |
177 | ||
178 | if (i == s->count-1 && s->remainder != 0) { | |
179 | s->sums[i].len = s->remainder; | |
180 | } else { | |
181 | s->sums[i].len = s->n; | |
182 | } | |
183 | offset += s->sums[i].len; | |
184 | ||
185 | if (verbose > 3) | |
dc5ddbcc | 186 | fprintf(FERROR,"chunk[%d] len=%d offset=%d sum1=%08x\n", |
c627d613 AT |
187 | i,s->sums[i].len,(int)s->sums[i].offset,s->sums[i].sum1); |
188 | } | |
189 | ||
190 | s->flength = offset; | |
191 | ||
192 | return s; | |
193 | } | |
194 | ||
195 | ||
7b8356d0 AT |
196 | static int set_perms(char *fname,struct file_struct *file,struct stat *st, |
197 | int report) | |
c627d613 AT |
198 | { |
199 | int updated = 0; | |
200 | struct stat st2; | |
201 | ||
7b8356d0 | 202 | if (dry_run) return 0; |
c627d613 AT |
203 | |
204 | if (!st) { | |
82306bf6 | 205 | if (link_stat(fname,&st2) != 0) { |
dc5ddbcc | 206 | fprintf(FERROR,"stat %s : %s\n",fname,strerror(errno)); |
7b8356d0 | 207 | return 0; |
c627d613 AT |
208 | } |
209 | st = &st2; | |
210 | } | |
211 | ||
7bec6a5c AT |
212 | if (preserve_times && !S_ISLNK(st->st_mode) && |
213 | st->st_mtime != file->modtime) { | |
c627d613 AT |
214 | updated = 1; |
215 | if (set_modtime(fname,file->modtime) != 0) { | |
dc5ddbcc | 216 | fprintf(FERROR,"failed to set times on %s : %s\n", |
c627d613 | 217 | fname,strerror(errno)); |
7b8356d0 | 218 | return 0; |
c627d613 AT |
219 | } |
220 | } | |
221 | ||
222 | #ifdef HAVE_CHMOD | |
7bec6a5c AT |
223 | if (preserve_perms && !S_ISLNK(st->st_mode) && |
224 | st->st_mode != file->mode) { | |
c627d613 AT |
225 | updated = 1; |
226 | if (chmod(fname,file->mode) != 0) { | |
dc5ddbcc | 227 | fprintf(FERROR,"failed to set permissions on %s : %s\n", |
c627d613 | 228 | fname,strerror(errno)); |
7b8356d0 | 229 | return 0; |
c627d613 AT |
230 | } |
231 | } | |
232 | #endif | |
233 | ||
7b8356d0 | 234 | if ((am_root && preserve_uid && st->st_uid != file->uid) || |
c627d613 AT |
235 | (preserve_gid && st->st_gid != file->gid)) { |
236 | updated = 1; | |
8bf73749 AT |
237 | if (lchown(fname, |
238 | (am_root&&preserve_uid)?file->uid:-1, | |
239 | preserve_gid?file->gid:-1) != 0) { | |
c627d613 | 240 | if (verbose>1 || preserve_uid) |
dc5ddbcc | 241 | fprintf(FERROR,"chown %s : %s\n",fname,strerror(errno)); |
7b8356d0 | 242 | return updated; |
c627d613 AT |
243 | } |
244 | } | |
245 | ||
246 | if (verbose > 1 && report) { | |
247 | if (updated) | |
dc5ddbcc | 248 | fprintf(FINFO,"%s\n",fname); |
c627d613 | 249 | else |
dc5ddbcc | 250 | fprintf(FINFO,"%s is uptodate\n",fname); |
c627d613 | 251 | } |
7b8356d0 | 252 | return updated; |
c627d613 AT |
253 | } |
254 | ||
255 | ||
964ca2ec AT |
256 | /* choose whether to skip a particular file */ |
257 | static int skip_file(char *fname, | |
258 | struct file_struct *file, struct stat *st) | |
259 | { | |
260 | if (st->st_size != file->length) { | |
261 | return 0; | |
262 | } | |
263 | ||
264 | /* if always checksum is set then we use the checksum instead | |
265 | of the file time to determine whether to sync */ | |
266 | if (always_checksum && S_ISREG(st->st_mode)) { | |
267 | char sum[MD4_SUM_LENGTH]; | |
268 | file_checksum(fname,sum,st->st_size); | |
269 | return (memcmp(sum,file->sum,csum_length) == 0); | |
270 | } | |
271 | ||
272 | if (ignore_times) { | |
273 | return 0; | |
274 | } | |
275 | ||
276 | return (st->st_mtime == file->modtime); | |
277 | } | |
278 | ||
279 | ||
c627d613 AT |
280 | void recv_generator(char *fname,struct file_list *flist,int i,int f_out) |
281 | { | |
282 | int fd; | |
283 | struct stat st; | |
c6e7fcb4 | 284 | struct map_struct *buf; |
c627d613 | 285 | struct sum_struct *s; |
c627d613 | 286 | int statret; |
dc5ddbcc | 287 | struct file_struct *file = &flist->files[i]; |
c627d613 AT |
288 | |
289 | if (verbose > 2) | |
9e31c482 | 290 | fprintf(FERROR,"recv_generator(%s,%d)\n",fname,i); |
c627d613 | 291 | |
82306bf6 | 292 | statret = link_stat(fname,&st); |
c627d613 | 293 | |
7b8356d0 AT |
294 | if (S_ISDIR(file->mode)) { |
295 | if (dry_run) return; | |
296 | if (statret == 0 && !S_ISDIR(st.st_mode)) { | |
297 | if (unlink(fname) != 0) { | |
298 | fprintf(FERROR,"unlink %s : %s\n",fname,strerror(errno)); | |
299 | return; | |
300 | } | |
301 | statret = -1; | |
302 | } | |
6574b4f7 AT |
303 | if (statret != 0 && mkdir(fname,file->mode) != 0 && errno != EEXIST) { |
304 | if (!(relative_paths && errno==ENOENT && | |
305 | create_directory_path(fname)==0 && | |
306 | mkdir(fname,file->mode)==0)) { | |
307 | fprintf(FERROR,"mkdir %s : %s (2)\n", | |
308 | fname,strerror(errno)); | |
309 | } | |
310 | } | |
7b8356d0 AT |
311 | if (set_perms(fname,file,NULL,0) && verbose) |
312 | fprintf(FINFO,"%s/\n",fname); | |
313 | return; | |
314 | } | |
315 | ||
dc5ddbcc | 316 | if (preserve_links && S_ISLNK(file->mode)) { |
cbbe4892 | 317 | #if SUPPORT_LINKS |
c627d613 AT |
318 | char lnk[MAXPATHLEN]; |
319 | int l; | |
320 | if (statret == 0) { | |
321 | l = readlink(fname,lnk,MAXPATHLEN-1); | |
322 | if (l > 0) { | |
323 | lnk[l] = 0; | |
dc5ddbcc AT |
324 | if (strcmp(lnk,file->link) == 0) { |
325 | set_perms(fname,file,&st,1); | |
c627d613 AT |
326 | return; |
327 | } | |
328 | } | |
329 | } | |
330 | if (!dry_run) unlink(fname); | |
dc5ddbcc AT |
331 | if (!dry_run && symlink(file->link,fname) != 0) { |
332 | fprintf(FERROR,"link %s -> %s : %s\n", | |
333 | fname,file->link,strerror(errno)); | |
c627d613 | 334 | } else { |
dc5ddbcc | 335 | set_perms(fname,file,NULL,0); |
c627d613 | 336 | if (verbose) |
dc5ddbcc AT |
337 | fprintf(FINFO,"%s -> %s\n", |
338 | fname,file->link); | |
c627d613 | 339 | } |
cbbe4892 | 340 | #endif |
c627d613 AT |
341 | return; |
342 | } | |
c627d613 AT |
343 | |
344 | #ifdef HAVE_MKNOD | |
7b8356d0 | 345 | if (am_root && preserve_devices && IS_DEVICE(file->mode)) { |
c627d613 | 346 | if (statret != 0 || |
dc5ddbcc AT |
347 | st.st_mode != file->mode || |
348 | st.st_rdev != file->rdev) { | |
c627d613 AT |
349 | if (!dry_run) unlink(fname); |
350 | if (verbose > 2) | |
dc5ddbcc AT |
351 | fprintf(FERROR,"mknod(%s,0%o,0x%x)\n", |
352 | fname,(int)file->mode,(int)file->rdev); | |
c627d613 | 353 | if (!dry_run && |
dc5ddbcc AT |
354 | mknod(fname,file->mode,file->rdev) != 0) { |
355 | fprintf(FERROR,"mknod %s : %s\n",fname,strerror(errno)); | |
c627d613 | 356 | } else { |
dc5ddbcc | 357 | set_perms(fname,file,NULL,0); |
c627d613 | 358 | if (verbose) |
dc5ddbcc | 359 | fprintf(FINFO,"%s\n",fname); |
c627d613 AT |
360 | } |
361 | } else { | |
dc5ddbcc | 362 | set_perms(fname,file,&st,1); |
c627d613 AT |
363 | } |
364 | return; | |
365 | } | |
366 | #endif | |
367 | ||
dc5ddbcc AT |
368 | if (preserve_hard_links && check_hard_link(file)) { |
369 | if (verbose > 1) | |
370 | fprintf(FINFO,"%s is a hard link\n",file->name); | |
371 | return; | |
372 | } | |
373 | ||
374 | if (!S_ISREG(file->mode)) { | |
375 | fprintf(FERROR,"skipping non-regular file %s\n",fname); | |
c627d613 AT |
376 | return; |
377 | } | |
378 | ||
379 | if (statret == -1) { | |
380 | if (errno == ENOENT) { | |
381 | write_int(f_out,i); | |
382 | if (!dry_run) send_sums(NULL,f_out); | |
383 | } else { | |
384 | if (verbose > 1) | |
dc5ddbcc | 385 | fprintf(FERROR,"recv_generator failed to open %s\n",fname); |
c627d613 AT |
386 | } |
387 | return; | |
388 | } | |
389 | ||
390 | if (!S_ISREG(st.st_mode)) { | |
7b8356d0 AT |
391 | /* its not a regular file on the receiving end, but it is on the |
392 | sending end. If its a directory then skip it (too dangerous to | |
393 | do a recursive deletion??) otherwise try to unlink it */ | |
394 | if (S_ISDIR(st.st_mode)) { | |
395 | fprintf(FERROR,"ERROR: %s is a directory\n",fname); | |
396 | return; | |
397 | } | |
398 | if (unlink(fname) != 0) { | |
399 | fprintf(FERROR,"%s : not a regular file (generator)\n",fname); | |
400 | return; | |
401 | } | |
402 | ||
403 | /* now pretend the file didn't exist */ | |
404 | write_int(f_out,i); | |
405 | if (!dry_run) send_sums(NULL,f_out); | |
c627d613 AT |
406 | return; |
407 | } | |
408 | ||
dc5ddbcc | 409 | if (update_only && st.st_mtime >= file->modtime) { |
c627d613 | 410 | if (verbose > 1) |
dc5ddbcc | 411 | fprintf(FERROR,"%s is newer\n",fname); |
c627d613 AT |
412 | return; |
413 | } | |
414 | ||
964ca2ec | 415 | if (skip_file(fname, file, &st)) { |
dc5ddbcc | 416 | set_perms(fname,file,&st,1); |
c627d613 AT |
417 | return; |
418 | } | |
419 | ||
420 | if (dry_run) { | |
421 | write_int(f_out,i); | |
422 | return; | |
423 | } | |
424 | ||
82306bf6 AT |
425 | if (whole_file) { |
426 | write_int(f_out,i); | |
427 | send_sums(NULL,f_out); | |
428 | return; | |
429 | } | |
430 | ||
c627d613 AT |
431 | /* open the file */ |
432 | fd = open(fname,O_RDONLY); | |
433 | ||
434 | if (fd == -1) { | |
dc5ddbcc | 435 | fprintf(FERROR,"failed to open %s : %s\n",fname,strerror(errno)); |
f3644f1f | 436 | fprintf(FERROR,"skipping %s\n",fname); |
c627d613 AT |
437 | return; |
438 | } | |
439 | ||
440 | if (st.st_size > 0) { | |
441 | buf = map_file(fd,st.st_size); | |
c627d613 AT |
442 | } else { |
443 | buf = NULL; | |
444 | } | |
445 | ||
446 | if (verbose > 3) | |
9e31c482 | 447 | fprintf(FERROR,"gen mapped %s of size %d\n",fname,(int)st.st_size); |
c627d613 AT |
448 | |
449 | s = generate_sums(buf,st.st_size,block_size); | |
450 | ||
9e31c482 AT |
451 | if (verbose > 2) |
452 | fprintf(FERROR,"sending sums for %d\n",i); | |
453 | ||
c627d613 AT |
454 | write_int(f_out,i); |
455 | send_sums(s,f_out); | |
456 | write_flush(f_out); | |
457 | ||
458 | close(fd); | |
1cdc8b50 | 459 | if (buf) unmap_file(buf); |
c627d613 AT |
460 | |
461 | free_sums(s); | |
462 | } | |
463 | ||
464 | ||
465 | ||
9e31c482 | 466 | static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname) |
c627d613 AT |
467 | { |
468 | int i,n,remainder,len,count; | |
469 | off_t offset = 0; | |
470 | off_t offset2; | |
70d794dc | 471 | char *data; |
ebb0a6f6 AT |
472 | static char file_sum1[MD4_SUM_LENGTH]; |
473 | static char file_sum2[MD4_SUM_LENGTH]; | |
9e31c482 | 474 | char *map=NULL; |
c627d613 AT |
475 | |
476 | count = read_int(f_in); | |
477 | n = read_int(f_in); | |
478 | remainder = read_int(f_in); | |
479 | ||
9e31c482 AT |
480 | sum_init(); |
481 | ||
70d794dc | 482 | for (i=recv_token(f_in,&data); i != 0; i=recv_token(f_in,&data)) { |
c627d613 AT |
483 | if (i > 0) { |
484 | if (verbose > 3) | |
dc5ddbcc | 485 | fprintf(FERROR,"data recv %d at %d\n",i,(int)offset); |
c627d613 | 486 | |
9e31c482 AT |
487 | sum_update(data,i); |
488 | ||
7b8356d0 | 489 | if (fd != -1 && write_sparse(fd,data,i) != i) { |
dc5ddbcc | 490 | fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno)); |
34ccb63e | 491 | exit_cleanup(1); |
c627d613 AT |
492 | } |
493 | offset += i; | |
494 | } else { | |
495 | i = -(i+1); | |
496 | offset2 = i*n; | |
497 | len = n; | |
498 | if (i == count-1 && remainder != 0) | |
499 | len = remainder; | |
500 | ||
501 | if (verbose > 3) | |
dc5ddbcc | 502 | fprintf(FERROR,"chunk[%d] of size %d at %d offset=%d\n", |
c627d613 AT |
503 | i,len,(int)offset2,(int)offset); |
504 | ||
9e31c482 AT |
505 | map = map_ptr(buf,offset2,len); |
506 | ||
861c20b4 | 507 | see_token(map, len); |
9e31c482 AT |
508 | sum_update(map,len); |
509 | ||
7b8356d0 | 510 | if (fd != -1 && write_sparse(fd,map,len) != len) { |
dc5ddbcc | 511 | fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno)); |
34ccb63e | 512 | exit_cleanup(1); |
c627d613 AT |
513 | } |
514 | offset += len; | |
515 | } | |
516 | } | |
7bec6a5c | 517 | |
7b8356d0 | 518 | if (fd != -1 && offset > 0 && sparse_end(fd) != 0) { |
dc5ddbcc | 519 | fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno)); |
34ccb63e | 520 | exit_cleanup(1); |
7bec6a5c | 521 | } |
9e31c482 AT |
522 | |
523 | sum_end(file_sum1); | |
524 | ||
525 | if (remote_version >= 14) { | |
ebb0a6f6 | 526 | read_buf(f_in,file_sum2,MD4_SUM_LENGTH); |
9e31c482 AT |
527 | if (verbose > 2) |
528 | fprintf(FERROR,"got file_sum\n"); | |
7b8356d0 | 529 | if (fd != -1 && memcmp(file_sum1,file_sum2,MD4_SUM_LENGTH) != 0) |
9e31c482 AT |
530 | return 0; |
531 | } | |
532 | return 1; | |
c627d613 AT |
533 | } |
534 | ||
535 | ||
536 | static void delete_one(struct file_struct *f) | |
537 | { | |
538 | if (!S_ISDIR(f->mode)) { | |
539 | if (!dry_run && unlink(f->name) != 0) { | |
dc5ddbcc | 540 | fprintf(FERROR,"unlink %s : %s\n",f->name,strerror(errno)); |
c627d613 | 541 | } else if (verbose) { |
dc5ddbcc | 542 | fprintf(FERROR,"deleting %s\n",f->name); |
c627d613 AT |
543 | } |
544 | } else { | |
545 | if (!dry_run && rmdir(f->name) != 0) { | |
546 | if (errno != ENOTEMPTY) | |
dc5ddbcc | 547 | fprintf(FERROR,"rmdir %s : %s\n",f->name,strerror(errno)); |
c627d613 | 548 | } else if (verbose) { |
dc5ddbcc | 549 | fprintf(FERROR,"deleting directory %s\n",f->name); |
c627d613 AT |
550 | } |
551 | } | |
552 | } | |
553 | ||
554 | ||
3b3a2fbc AT |
555 | /* yuck! This function wouldn't have been necessary if I had the sorting |
556 | algorithm right. Unfortunately fixing the sorting algorithm would introduce | |
557 | a backward incompatibility as file list indexes are sent over the link. | |
558 | ||
559 | The aim is to see if a directory has already had the deletion algorithm applied | |
560 | to it (due to recursion), and if so to skip it. The bisection is to | |
561 | prevent this being an n^2 algorithm */ | |
562 | static int delete_already_done(struct file_list *flist,int j) | |
563 | { | |
564 | int low=0,high=j-1; | |
565 | char *name; | |
566 | char *p; | |
567 | ||
568 | if (j == 0) return 0; | |
569 | ||
570 | name = strdup(flist->files[j].name); | |
571 | ||
572 | if (!name) { | |
573 | fprintf(FERROR,"out of memory in delete_already_done"); | |
574 | exit_cleanup(1); | |
575 | } | |
576 | ||
577 | p = strrchr(name,'/'); | |
578 | if (!p) { | |
579 | free(name); | |
580 | return 0; | |
581 | } | |
582 | *p = 0; | |
583 | ||
584 | while (low != high) { | |
585 | int mid = (low+high)/2; | |
586 | int ret = strcmp(flist->files[flist_up(flist, mid)].name,name); | |
587 | if (ret == 0) { | |
588 | free(name); | |
589 | return 1; | |
590 | } | |
591 | if (ret > 0) { | |
592 | high=mid; | |
593 | } else { | |
594 | low=mid+1; | |
595 | } | |
596 | } | |
597 | ||
598 | low = flist_up(flist, low); | |
599 | ||
600 | if (strcmp(flist->files[low].name,name) == 0) { | |
601 | free(name); | |
602 | return 1; | |
603 | } | |
604 | ||
605 | free(name); | |
606 | return 0; | |
607 | } | |
608 | ||
609 | ||
e92338c8 AT |
610 | /* this deletes any files on the receiving side that are not present |
611 | on the sending side. For version 1.6.4 I have changed the behaviour | |
612 | to match more closely what most people seem to expect of this option */ | |
c627d613 AT |
613 | static void delete_files(struct file_list *flist) |
614 | { | |
615 | struct file_list *local_file_list; | |
e92338c8 | 616 | int i, j; |
c627d613 | 617 | |
4fe159a8 | 618 | if (cvs_exclude) |
79fbb6f5 | 619 | add_cvs_excludes(); |
4fe159a8 | 620 | |
e92338c8 | 621 | for (j=0;j<flist->count;j++) { |
3b3a2fbc AT |
622 | char *name = flist->files[j].name; |
623 | ||
e92338c8 | 624 | if (!S_ISDIR(flist->files[j].mode)) continue; |
3b3a2fbc AT |
625 | |
626 | if (delete_already_done(flist, j)) continue; | |
627 | ||
628 | if (!(local_file_list = send_file_list(-1,1,&name))) | |
d966ee25 | 629 | continue; |
3b3a2fbc | 630 | |
e92338c8 | 631 | if (verbose > 1) |
3b3a2fbc | 632 | fprintf(FINFO,"deleting in %s\n", name); |
e92338c8 AT |
633 | |
634 | for (i=local_file_list->count-1;i>=0;i--) { | |
635 | if (!local_file_list->files[i].name) continue; | |
636 | if (-1 == flist_find(flist,&local_file_list->files[i])) { | |
637 | delete_one(&local_file_list->files[i]); | |
638 | } | |
639 | } | |
c627d613 AT |
640 | } |
641 | } | |
642 | ||
643 | static char *cleanup_fname = NULL; | |
644 | ||
34ccb63e | 645 | void exit_cleanup(int code) |
c627d613 | 646 | { |
82306bf6 AT |
647 | if (cleanup_fname) |
648 | unlink(cleanup_fname); | |
649 | signal(SIGUSR1, SIG_IGN); | |
650 | if (code) { | |
651 | #ifdef GETPGRP_VOID | |
652 | kill(-getpgrp(), SIGUSR1); | |
653 | #else | |
654 | kill(-getpgrp(getpid()), SIGUSR1); | |
655 | #endif | |
656 | } | |
657 | exit(code); | |
34ccb63e AT |
658 | } |
659 | ||
660 | void sig_int(void) | |
661 | { | |
662 | exit_cleanup(1); | |
c627d613 AT |
663 | } |
664 | ||
665 | ||
c6e7fcb4 | 666 | int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen) |
c627d613 AT |
667 | { |
668 | int fd1,fd2; | |
669 | struct stat st; | |
670 | char *fname; | |
671 | char fnametmp[MAXPATHLEN]; | |
c6e7fcb4 | 672 | struct map_struct *buf; |
c627d613 | 673 | int i; |
dc5ddbcc | 674 | struct file_struct *file; |
c6e7fcb4 | 675 | int phase=0; |
9e31c482 | 676 | int recv_ok; |
c627d613 | 677 | |
981791bd | 678 | if (verbose > 2) { |
dc5ddbcc | 679 | fprintf(FERROR,"recv_files(%d) starting\n",flist->count); |
981791bd | 680 | } |
c627d613 AT |
681 | |
682 | if (recurse && delete_mode && !local_name && flist->count>0) { | |
683 | delete_files(flist); | |
684 | } | |
685 | ||
686 | while (1) | |
9e31c482 | 687 | { |
c627d613 | 688 | i = read_int(f_in); |
c6e7fcb4 AT |
689 | if (i == -1) { |
690 | if (phase==0 && remote_version >= 13) { | |
691 | phase++; | |
9e31c482 AT |
692 | csum_length = SUM_LENGTH; |
693 | if (verbose > 2) | |
694 | fprintf(FERROR,"recv_files phase=%d\n",phase); | |
c6e7fcb4 AT |
695 | write_int(f_gen,-1); |
696 | write_flush(f_gen); | |
697 | continue; | |
698 | } | |
699 | break; | |
700 | } | |
c627d613 | 701 | |
dc5ddbcc AT |
702 | file = &flist->files[i]; |
703 | fname = file->name; | |
c627d613 AT |
704 | |
705 | if (local_name) | |
706 | fname = local_name; | |
707 | ||
708 | if (dry_run) { | |
709 | if (!am_server && verbose) | |
710 | printf("%s\n",fname); | |
711 | continue; | |
712 | } | |
713 | ||
714 | if (verbose > 2) | |
dc5ddbcc | 715 | fprintf(FERROR,"recv_files(%s)\n",fname); |
c627d613 AT |
716 | |
717 | /* open the file */ | |
ac1eb754 | 718 | fd1 = open(fname,O_RDONLY); |
c627d613 | 719 | |
ac1eb754 | 720 | if (fd1 != -1 && fstat(fd1,&st) != 0) { |
dc5ddbcc | 721 | fprintf(FERROR,"fstat %s : %s\n",fname,strerror(errno)); |
7b8356d0 | 722 | receive_data(f_in,NULL,-1,NULL); |
c627d613 | 723 | close(fd1); |
7b8356d0 | 724 | continue; |
c627d613 AT |
725 | } |
726 | ||
ac1eb754 | 727 | if (fd1 != -1 && !S_ISREG(st.st_mode)) { |
7b8356d0 AT |
728 | fprintf(FERROR,"%s : not a regular file (recv_files)\n",fname); |
729 | receive_data(f_in,NULL,-1,NULL); | |
c627d613 | 730 | close(fd1); |
7b8356d0 | 731 | continue; |
c627d613 AT |
732 | } |
733 | ||
ac1eb754 | 734 | if (fd1 != -1 && st.st_size > 0) { |
c627d613 | 735 | buf = map_file(fd1,st.st_size); |
9e31c482 AT |
736 | if (verbose > 2) |
737 | fprintf(FERROR,"recv mapped %s of size %d\n",fname,(int)st.st_size); | |
c627d613 AT |
738 | } else { |
739 | buf = NULL; | |
740 | } | |
741 | ||
c627d613 | 742 | /* open tmp file */ |
13a1f792 AT |
743 | if (strlen(fname) > (MAXPATHLEN-8)) { |
744 | fprintf(FERROR,"filename too long\n"); | |
fee64929 | 745 | close(fd1); |
13a1f792 AT |
746 | continue; |
747 | } | |
950ab32d AT |
748 | if (tmpdir) { |
749 | char *f; | |
750 | f = strrchr(fname,'/'); | |
751 | if (f == NULL) | |
752 | f = fname; | |
753 | else | |
754 | f++; | |
755 | sprintf(fnametmp,"%s/%s.XXXXXX",tmpdir,f); | |
756 | } else { | |
757 | sprintf(fnametmp,"%s.XXXXXX",fname); | |
758 | } | |
c627d613 | 759 | if (NULL == mktemp(fnametmp)) { |
dc5ddbcc | 760 | fprintf(FERROR,"mktemp %s failed\n",fnametmp); |
7b8356d0 AT |
761 | receive_data(f_in,buf,-1,NULL); |
762 | if (buf) unmap_file(buf); | |
763 | close(fd1); | |
764 | continue; | |
c627d613 | 765 | } |
950ab32d | 766 | fd2 = open(fnametmp,O_WRONLY|O_CREAT|O_EXCL,file->mode); |
fee64929 | 767 | if (fd2 == -1 && relative_paths && errno == ENOENT && |
6574b4f7 | 768 | create_directory_path(fnametmp) == 0) { |
950ab32d | 769 | fd2 = open(fnametmp,O_WRONLY|O_CREAT|O_EXCL,file->mode); |
6574b4f7 | 770 | } |
c627d613 | 771 | if (fd2 == -1) { |
dc5ddbcc | 772 | fprintf(FERROR,"open %s : %s\n",fnametmp,strerror(errno)); |
7b8356d0 AT |
773 | receive_data(f_in,buf,-1,NULL); |
774 | if (buf) unmap_file(buf); | |
775 | close(fd1); | |
776 | continue; | |
c627d613 AT |
777 | } |
778 | ||
779 | cleanup_fname = fnametmp; | |
780 | ||
781 | if (!am_server && verbose) | |
782 | printf("%s\n",fname); | |
783 | ||
784 | /* recv file data */ | |
9e31c482 | 785 | recv_ok = receive_data(f_in,buf,fd2,fname); |
c627d613 | 786 | |
981791bd | 787 | if (fd1 != -1) { |
1cdc8b50 | 788 | if (buf) unmap_file(buf); |
981791bd AT |
789 | close(fd1); |
790 | } | |
c627d613 AT |
791 | close(fd2); |
792 | ||
793 | if (verbose > 2) | |
dc5ddbcc | 794 | fprintf(FERROR,"renaming %s to %s\n",fnametmp,fname); |
c627d613 AT |
795 | |
796 | if (make_backups) { | |
797 | char fnamebak[MAXPATHLEN]; | |
13a1f792 AT |
798 | if (strlen(fname) + strlen(backup_suffix) > (MAXPATHLEN-1)) { |
799 | fprintf(FERROR,"backup filename too long\n"); | |
800 | continue; | |
801 | } | |
c627d613 | 802 | sprintf(fnamebak,"%s%s",fname,backup_suffix); |
ac1eb754 | 803 | if (rename(fname,fnamebak) != 0 && errno != ENOENT) { |
dc5ddbcc | 804 | fprintf(FERROR,"rename %s %s : %s\n",fname,fnamebak,strerror(errno)); |
7b8356d0 | 805 | continue; |
c627d613 AT |
806 | } |
807 | } | |
808 | ||
809 | /* move tmp file over real file */ | |
810 | if (rename(fnametmp,fname) != 0) { | |
950ab32d AT |
811 | if (errno == EXDEV) { |
812 | /* rename failed on cross-filesystem link. | |
813 | Copy the file instead. */ | |
13dc412d | 814 | if (copy_file(fnametmp,fname, file->mode)) { |
950ab32d AT |
815 | fprintf(FERROR,"copy %s -> %s : %s\n", |
816 | fnametmp,fname,strerror(errno)); | |
13dc412d AT |
817 | } else { |
818 | set_perms(fname,file,NULL,0); | |
819 | } | |
950ab32d AT |
820 | unlink(fnametmp); |
821 | } else { | |
822 | fprintf(FERROR,"rename %s -> %s : %s\n", | |
823 | fnametmp,fname,strerror(errno)); | |
824 | unlink(fnametmp); | |
825 | } | |
13dc412d AT |
826 | } else { |
827 | set_perms(fname,file,NULL,0); | |
c627d613 AT |
828 | } |
829 | ||
830 | cleanup_fname = NULL; | |
831 | ||
9e31c482 AT |
832 | |
833 | if (!recv_ok) { | |
834 | if (verbose > 1) | |
835 | fprintf(FERROR,"redoing %s(%d)\n",fname,i); | |
52296954 AT |
836 | if (csum_length == SUM_LENGTH) |
837 | fprintf(FERROR,"ERROR: file corruption in %s\n",fname); | |
9e31c482 AT |
838 | write_int(f_gen,i); |
839 | } | |
c627d613 AT |
840 | } |
841 | ||
7c596906 AT |
842 | if (preserve_hard_links) |
843 | do_hard_links(flist); | |
844 | ||
7b8356d0 AT |
845 | /* now we need to fix any directory permissions that were |
846 | modified during the transfer */ | |
7c596906 AT |
847 | for (i = 0; i < flist->count; i++) { |
848 | struct file_struct *file = &flist->files[i]; | |
849 | if (!file->name || !S_ISDIR(file->mode)) continue; | |
850 | recv_generator(file->name,flist,i,-1); | |
7b8356d0 | 851 | } |
7b8356d0 | 852 | |
c627d613 | 853 | if (verbose > 2) |
dc5ddbcc | 854 | fprintf(FERROR,"recv_files finished\n"); |
c627d613 AT |
855 | |
856 | return 0; | |
857 | } | |
858 | ||
859 | ||
860 | ||
861 | off_t send_files(struct file_list *flist,int f_out,int f_in) | |
862 | { | |
863 | int fd; | |
864 | struct sum_struct *s; | |
c6e7fcb4 | 865 | struct map_struct *buf; |
c627d613 AT |
866 | struct stat st; |
867 | char fname[MAXPATHLEN]; | |
868 | off_t total=0; | |
869 | int i; | |
dc5ddbcc | 870 | struct file_struct *file; |
c6e7fcb4 | 871 | int phase = 0; |
c627d613 AT |
872 | |
873 | if (verbose > 2) | |
dc5ddbcc | 874 | fprintf(FERROR,"send_files starting\n"); |
c627d613 | 875 | |
720b47f2 AT |
876 | setup_nonblocking(f_in,f_out); |
877 | ||
c627d613 AT |
878 | while (1) |
879 | { | |
880 | i = read_int(f_in); | |
c6e7fcb4 AT |
881 | if (i == -1) { |
882 | if (phase==0 && remote_version >= 13) { | |
883 | phase++; | |
9e31c482 | 884 | csum_length = SUM_LENGTH; |
c6e7fcb4 AT |
885 | write_int(f_out,-1); |
886 | write_flush(f_out); | |
9e31c482 AT |
887 | if (verbose > 2) |
888 | fprintf(FERROR,"send_files phase=%d\n",phase); | |
c6e7fcb4 AT |
889 | continue; |
890 | } | |
891 | break; | |
892 | } | |
c627d613 | 893 | |
dc5ddbcc AT |
894 | file = &flist->files[i]; |
895 | ||
c627d613 | 896 | fname[0] = 0; |
dc5ddbcc | 897 | if (file->dir) { |
13a1f792 AT |
898 | strncpy(fname,file->dir,MAXPATHLEN-1); |
899 | fname[MAXPATHLEN-1] = 0; | |
684b4e31 AT |
900 | if (strlen(fname) == MAXPATHLEN-1) { |
901 | fprintf(FERROR, "send_files failed on long-named directory %s\n", | |
902 | fname); | |
903 | return -1; | |
904 | } | |
c627d613 AT |
905 | strcat(fname,"/"); |
906 | } | |
13a1f792 | 907 | strncat(fname,file->name,MAXPATHLEN-strlen(fname)); |
c627d613 AT |
908 | |
909 | if (verbose > 2) | |
dc5ddbcc | 910 | fprintf(FERROR,"send_files(%d,%s)\n",i,fname); |
c627d613 AT |
911 | |
912 | if (dry_run) { | |
913 | if (!am_server && verbose) | |
914 | printf("%s\n",fname); | |
915 | write_int(f_out,i); | |
916 | continue; | |
917 | } | |
918 | ||
919 | s = receive_sums(f_in); | |
920 | if (!s) { | |
dc5ddbcc | 921 | fprintf(FERROR,"receive_sums failed\n"); |
c627d613 AT |
922 | return -1; |
923 | } | |
924 | ||
925 | fd = open(fname,O_RDONLY); | |
926 | if (fd == -1) { | |
dc5ddbcc | 927 | fprintf(FERROR,"send_files failed to open %s: %s\n", |
c627d613 AT |
928 | fname,strerror(errno)); |
929 | continue; | |
930 | } | |
931 | ||
932 | /* map the local file */ | |
933 | if (fstat(fd,&st) != 0) { | |
dc5ddbcc | 934 | fprintf(FERROR,"fstat failed : %s\n",strerror(errno)); |
fee64929 | 935 | close(fd); |
c627d613 AT |
936 | return -1; |
937 | } | |
938 | ||
939 | if (st.st_size > 0) { | |
940 | buf = map_file(fd,st.st_size); | |
c627d613 AT |
941 | } else { |
942 | buf = NULL; | |
943 | } | |
944 | ||
945 | if (verbose > 2) | |
dc5ddbcc | 946 | fprintf(FERROR,"send_files mapped %s of size %d\n", |
c627d613 AT |
947 | fname,(int)st.st_size); |
948 | ||
949 | write_int(f_out,i); | |
950 | ||
951 | write_int(f_out,s->count); | |
952 | write_int(f_out,s->n); | |
953 | write_int(f_out,s->remainder); | |
954 | ||
955 | if (verbose > 2) | |
dc5ddbcc | 956 | fprintf(FERROR,"calling match_sums %s\n",fname); |
c627d613 AT |
957 | |
958 | if (!am_server && verbose) | |
959 | printf("%s\n",fname); | |
960 | ||
720b47f2 | 961 | match_sums(f_out,s,buf,st.st_size); |
c627d613 AT |
962 | write_flush(f_out); |
963 | ||
1cdc8b50 | 964 | if (buf) unmap_file(buf); |
c627d613 AT |
965 | close(fd); |
966 | ||
967 | free_sums(s); | |
968 | ||
969 | if (verbose > 2) | |
dc5ddbcc | 970 | fprintf(FERROR,"sender finished %s\n",fname); |
c627d613 AT |
971 | |
972 | total += st.st_size; | |
973 | } | |
974 | ||
dc5ddbcc AT |
975 | if (verbose > 2) |
976 | fprintf(FERROR,"send files finished\n"); | |
977 | ||
c627d613 AT |
978 | match_report(); |
979 | ||
980 | write_int(f_out,-1); | |
981 | write_flush(f_out); | |
982 | ||
983 | return total; | |
984 | } | |
985 | ||
986 | ||
987 | ||
c6e7fcb4 | 988 | void generate_files(int f,struct file_list *flist,char *local_name,int f_recv) |
c627d613 AT |
989 | { |
990 | int i; | |
9e31c482 | 991 | int phase=0; |
c627d613 AT |
992 | |
993 | if (verbose > 2) | |
dc5ddbcc | 994 | fprintf(FERROR,"generator starting pid=%d count=%d\n", |
c627d613 AT |
995 | (int)getpid(),flist->count); |
996 | ||
997 | for (i = 0; i < flist->count; i++) { | |
dc5ddbcc | 998 | struct file_struct *file = &flist->files[i]; |
7b8356d0 | 999 | mode_t saved_mode = file->mode; |
dc5ddbcc | 1000 | if (!file->name) continue; |
7b8356d0 AT |
1001 | |
1002 | /* we need to ensure that any directories we create have writeable | |
1003 | permissions initially so that we can create the files within | |
1004 | them. This is then fixed after the files are transferred */ | |
1005 | if (!am_root && S_ISDIR(file->mode)) { | |
1006 | file->mode |= S_IWUSR; /* user write */ | |
c627d613 | 1007 | } |
7b8356d0 | 1008 | |
dc5ddbcc | 1009 | recv_generator(local_name?local_name:file->name, |
c627d613 | 1010 | flist,i,f); |
7b8356d0 AT |
1011 | |
1012 | file->mode = saved_mode; | |
c627d613 | 1013 | } |
c6e7fcb4 | 1014 | |
9e31c482 AT |
1015 | phase++; |
1016 | csum_length = SUM_LENGTH; | |
1017 | ignore_times=1; | |
1018 | ||
1019 | if (verbose > 2) | |
1020 | fprintf(FERROR,"generate_files phase=%d\n",phase); | |
1021 | ||
c627d613 AT |
1022 | write_int(f,-1); |
1023 | write_flush(f); | |
c6e7fcb4 AT |
1024 | |
1025 | if (remote_version >= 13) { | |
7b8356d0 AT |
1026 | /* in newer versions of the protocol the files can cycle through |
1027 | the system more than once to catch initial checksum errors */ | |
c6e7fcb4 AT |
1028 | for (i=read_int(f_recv); i != -1; i=read_int(f_recv)) { |
1029 | struct file_struct *file = &flist->files[i]; | |
1030 | recv_generator(local_name?local_name:file->name, | |
1031 | flist,i,f); | |
1032 | } | |
1033 | ||
9e31c482 AT |
1034 | phase++; |
1035 | if (verbose > 2) | |
1036 | fprintf(FERROR,"generate_files phase=%d\n",phase); | |
1037 | ||
c6e7fcb4 AT |
1038 | write_int(f,-1); |
1039 | write_flush(f); | |
1040 | } | |
1041 | ||
1042 | ||
c627d613 | 1043 | if (verbose > 2) |
dc5ddbcc | 1044 | fprintf(FERROR,"generator wrote %d\n",write_total()); |
c627d613 | 1045 | } |
dc5ddbcc AT |
1046 | |
1047 |