Commit | Line | Data |
---|---|---|
8a529471 WD |
1 | After applying this patch and running configure, you MUST run this |
2 | command before "make": | |
3 | ||
4 | make proto | |
5 | ||
6 | Jason M. Felice writes: | |
2eb075b2 WD |
7 | |
8 | This patch adds the --link-by-hash=DIR option, which hard links received | |
9 | files in a link farm arranged by MD4 file hash. The result is that the system | |
10 | will only store one copy of the unique contents of each file, regardless of | |
11 | the file's name. | |
12 | ||
2eb075b2 | 13 | |
58a9031f | 14 | --- orig/Makefile.in 2004-11-03 11:56:03 |
13bed3dd | 15 | +++ Makefile.in 2004-07-03 20:20:15 |
8a529471 WD |
16 | @@ -35,7 +35,7 @@ OBJS1=rsync.o generator.o receiver.o cle |
17 | main.o checksum.o match.o syscall.o log.o backup.o | |
18 | OBJS2=options.o flist.o io.o compat.o hlink.o token.o uidlist.o socket.o \ | |
19 | fileio.o batch.o clientname.o | |
20 | -OBJS3=progress.o pipe.o | |
21 | +OBJS3=progress.o pipe.o hashlink.o | |
22 | DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o | |
23 | popt_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \ | |
24 | popt/popthelp.o popt/poptparse.o | |
47841496 WD |
25 | --- orig/hashlink.c 2004-09-24 16:44:25 |
26 | +++ hashlink.c 2004-09-24 16:44:25 | |
27 | @@ -0,0 +1,340 @@ | |
c57f4101 WD |
28 | +/* |
29 | + Copyright (C) Cronosys, LLC 2004 | |
30 | + | |
31 | + This program is free software; you can redistribute it and/or modify | |
32 | + it under the terms of the GNU General Public License as published by | |
33 | + the Free Software Foundation; either version 2 of the License, or | |
34 | + (at your option) any later version. | |
35 | + | |
36 | + This program is distributed in the hope that it will be useful, | |
37 | + but WITHOUT ANY WARRANTY; without even the implied warranty of | |
38 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
39 | + GNU General Public License for more details. | |
40 | + | |
41 | + You should have received a copy of the GNU General Public License | |
42 | + along with this program; if not, write to the Free Software | |
43 | + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
44 | +*/ | |
45 | + | |
46 | +/* This file contains code used by the --link-by-hash option. */ | |
47 | + | |
48 | +#include "rsync.h" | |
49 | + | |
50 | +extern char *link_by_hash_dir; | |
51 | + | |
79f132a1 | 52 | +#if HAVE_LINK |
c57f4101 WD |
53 | + |
54 | +char* make_hash_name(struct file_struct *file) | |
55 | +{ | |
56 | + char hash[33], *dst; | |
57 | + unsigned char *src; | |
58 | + unsigned char c; | |
59 | + int i; | |
60 | + | |
61 | + src = (unsigned char*)file->u.sum; | |
62 | + for (dst = hash, i = 0; i < 4; i++, src++) { | |
63 | + c = *src >> 4; | |
64 | + *(dst++) = (c >= 10) ? (c - 10 + 'a') : (c + '0'); | |
65 | + c = *src & 0x0f; | |
66 | + *(dst++) = (c >= 10) ? (c - 10 + 'a') : (c + '0'); | |
67 | + } | |
68 | + *dst++ = '/'; | |
69 | + for (i = 0; i < 12; i++, src++) { | |
70 | + c = *src >> 4; | |
71 | + *(dst++) = (c >= 10) ? (c - 10 + 'a') : (c + '0'); | |
72 | + c = *src & 0x0f; | |
73 | + *(dst++) = (c >= 10) ? (c - 10 + 'a') : (c + '0'); | |
74 | + } | |
75 | + *dst = 0; | |
76 | + | |
77 | + asprintf(&dst,"%s/%s",link_by_hash_dir,hash); | |
78 | + return dst; | |
79 | +} | |
80 | + | |
81 | + | |
82 | +void kill_hashfile(struct hashfile_struct *hashfile) | |
83 | +{ | |
84 | + if (!hashfile) | |
85 | + return; | |
86 | + free(hashfile->name); | |
87 | + close(hashfile->fd); | |
88 | + free(hashfile); | |
89 | +} | |
90 | + | |
91 | + | |
92 | +void kill_hashfiles(struct hashfile_struct *hashfiles) | |
93 | +{ | |
94 | + struct hashfile_struct *iter, *next; | |
95 | + if ((iter = hashfiles) != NULL) { | |
96 | + do { | |
97 | + next = iter->next; | |
98 | + kill_hashfile(iter); | |
99 | + iter = next; | |
100 | + } while (iter != hashfiles); | |
101 | + } | |
102 | +} | |
103 | + | |
104 | + | |
105 | +struct hashfile_struct *find_hashfiles(char *hashname, int64 size, long *fnbr) | |
106 | +{ | |
107 | + DIR *d; | |
108 | + struct dirent *di; | |
109 | + struct hashfile_struct *hashfiles = NULL, *hashfile; | |
110 | + STRUCT_STAT st; | |
111 | + long this_fnbr; | |
112 | + | |
113 | + *fnbr = 0; | |
47841496 | 114 | + |
c57f4101 WD |
115 | + /* Build a list of potential candidates and open |
116 | + * them. */ | |
117 | + if ((d = opendir(hashname)) == NULL) { | |
d0320a46 | 118 | + rsyserr(FERROR, errno, "opendir failed: \"%s\"", hashname); |
c57f4101 WD |
119 | + free(hashname); |
120 | + return NULL; | |
121 | + } | |
122 | + while ((di = readdir(d)) != NULL) { | |
123 | + if (!strcmp(di->d_name,".") || !strcmp(di->d_name,"..")) { | |
124 | + continue; | |
125 | + } | |
126 | + | |
127 | + /* We need to have the largest fnbr in case we need to store | |
128 | + * a new file. */ | |
129 | + this_fnbr = atol(di->d_name); | |
130 | + if (this_fnbr > *fnbr) | |
131 | + *fnbr = this_fnbr; | |
132 | + | |
133 | + hashfile = (struct hashfile_struct*)malloc(sizeof(struct hashfile_struct)); | |
134 | + asprintf(&hashfile->name,"%s/%s",hashname, | |
135 | + di->d_name); | |
136 | + if (do_stat(hashfile->name,&st) == -1) { | |
d0320a46 | 137 | + rsyserr(FERROR, errno, "stat failed: %s", hashfile->name); |
c57f4101 WD |
138 | + kill_hashfile(hashfile); |
139 | + continue; | |
140 | + } | |
141 | + if (st.st_size != size) { | |
142 | + kill_hashfile(hashfile); | |
143 | + continue; | |
144 | + } | |
145 | + hashfile->nlink = st.st_nlink; | |
146 | + hashfile->fd = open(hashfile->name,O_RDONLY|O_BINARY); | |
147 | + if (hashfile->fd == -1) { | |
d0320a46 | 148 | + rsyserr(FERROR, errno, "open failed: %s", hashfile->name); |
c57f4101 WD |
149 | + kill_hashfile(hashfile); |
150 | + continue; | |
151 | + } | |
152 | + if (hashfiles == NULL) | |
153 | + hashfiles = hashfile->next = hashfile->prev = hashfile; | |
154 | + else { | |
155 | + hashfile->next = hashfiles; | |
156 | + hashfile->prev = hashfiles->prev; | |
157 | + hashfile->next->prev = hashfile; | |
158 | + hashfile->prev->next = hashfile; | |
159 | + } | |
160 | + } | |
161 | + closedir(d); | |
162 | + | |
163 | + return hashfiles; | |
164 | +} | |
165 | + | |
166 | + | |
167 | +struct hashfile_struct *compare_hashfiles(int fd,struct hashfile_struct *files) | |
168 | +{ | |
169 | + int amt, hamt; | |
170 | + char buffer[BUFSIZ], cmpbuffer[BUFSIZ]; | |
171 | + struct hashfile_struct *iter, *next, *best; | |
172 | + uint32 nlink; | |
173 | + | |
174 | + if (!files) | |
175 | + return NULL; | |
176 | + | |
177 | + iter = files; /* in case files are 0 bytes */ | |
178 | + while ((amt = read(fd, buffer, BUFSIZ)) > 0) { | |
179 | + iter = files; | |
180 | + do { | |
181 | + /* Icky bit to resync when we steal the first node. */ | |
182 | + if (!files) | |
183 | + files = iter; | |
184 | + | |
185 | + next = iter->next; | |
186 | + | |
187 | + hamt = read(iter->fd, cmpbuffer, BUFSIZ); | |
188 | + if (amt != hamt || memcmp(buffer, cmpbuffer, amt)) { | |
189 | + if (iter == files) { | |
190 | + files = files->prev; | |
191 | + } | |
192 | + if (iter->next == iter) { | |
193 | + files = next = NULL; | |
194 | + } else { | |
195 | + next = iter->next; | |
196 | + if (iter == files) { | |
197 | + /* So we know to resync */ | |
198 | + files = NULL; | |
199 | + } | |
200 | + } | |
201 | + iter->next->prev = iter->prev; | |
202 | + iter->prev->next = iter->next; | |
203 | + kill_hashfile(iter); | |
204 | + } | |
205 | + | |
206 | + iter = next; | |
207 | + } while (iter != files); | |
208 | + | |
209 | + if (iter == NULL && files == NULL) { | |
210 | + /* There are no matches. */ | |
211 | + return NULL; | |
212 | + } | |
c57f4101 WD |
213 | + } |
214 | + | |
215 | + if (amt == -1) { | |
d0320a46 | 216 | + rsyserr(FERROR, errno, "read failed in compare_hashfiles()"); |
c57f4101 WD |
217 | + kill_hashfiles(files); |
218 | + return NULL; | |
219 | + } | |
220 | + | |
221 | + /* If we only have one file left, use it. */ | |
222 | + if (files == files->next) { | |
223 | + return files; | |
224 | + } | |
225 | + | |
226 | + /* All files which remain in the list are identical and should have | |
227 | + * the same size. We pick the one with the lowest link count (we | |
228 | + * may have rolled over because we hit the maximum link count for | |
229 | + * the filesystem). */ | |
230 | + best = iter = files; | |
231 | + nlink = iter->nlink; | |
232 | + do { | |
233 | + if (iter->nlink < nlink) { | |
234 | + nlink = iter->nlink; | |
235 | + best = iter; | |
236 | + } | |
237 | + iter = iter->next; | |
238 | + } while (iter != files); | |
239 | + | |
240 | + best->next->prev = best->prev; | |
241 | + best->prev->next = best->next; | |
242 | + if (files == best) | |
243 | + files = files->next; | |
244 | + kill_hashfiles(files); | |
245 | + return best; | |
246 | +} | |
247 | + | |
248 | + | |
249 | +int link_by_hash(char *fnametmp,char *fname,struct file_struct *file) | |
250 | +{ | |
251 | + STRUCT_STAT st; | |
47841496 | 252 | + char *hashname = make_hash_name(file); |
c57f4101 WD |
253 | + int first = 0, rc; |
254 | + char *linkname; | |
255 | + long last_fnbr; | |
256 | + | |
257 | + if (file->length == 0) { | |
258 | + return robust_rename(fnametmp,fname,0644); | |
259 | + } | |
260 | + | |
261 | + if (do_stat(hashname, &st) == -1) { | |
262 | + char *dirname; | |
263 | + | |
264 | + /* Directory does not exist. */ | |
265 | + dirname = strdup(hashname); | |
266 | + *strrchr(dirname,'/') = 0; | |
267 | + if (do_mkdir(dirname, 0755) == -1 && errno != EEXIST) { | |
d0320a46 | 268 | + rsyserr(FERROR, errno, "mkdir failed: %s", dirname); |
c57f4101 WD |
269 | + free(hashname); |
270 | + free(dirname); | |
271 | + return robust_rename(fnametmp,fname,0644); | |
272 | + } | |
273 | + free(dirname); | |
274 | + | |
275 | + if (do_mkdir(hashname, 0755) == -1 && errno != EEXIST) { | |
d0320a46 | 276 | + rsyserr(FERROR, errno, "mkdir failed: %s", hashname); |
c57f4101 WD |
277 | + free(hashname); |
278 | + return robust_rename(fnametmp,fname,0644); | |
279 | + } | |
280 | + | |
281 | + first = 1; | |
282 | + asprintf(&linkname,"%s/0",hashname); | |
283 | + rprintf(FINFO, "(1) linkname = %s\n", linkname); | |
c57f4101 WD |
284 | + } else { |
285 | + struct hashfile_struct *hashfiles, *hashfile; | |
c57f4101 WD |
286 | + |
287 | + if (do_stat(fnametmp,&st) == -1) { | |
d0320a46 | 288 | + rsyserr(FERROR, errno, "stat failed: %s", fname); |
c57f4101 WD |
289 | + return -1; |
290 | + } | |
291 | + hashfiles = find_hashfiles(hashname, st.st_size, &last_fnbr); | |
292 | + | |
293 | + if (hashfiles == NULL) { | |
294 | + first = 1; | |
295 | + asprintf(&linkname,"%s/0",hashname); | |
296 | + rprintf(FINFO, "(2) linkname = %s\n", linkname); | |
297 | + } else { | |
47841496 | 298 | + int fd; |
c57f4101 WD |
299 | + /* Search for one identical to us. */ |
300 | + if ((fd = open(fnametmp,O_RDONLY|O_BINARY)) == -1) { | |
d0320a46 | 301 | + rsyserr(FERROR, errno, "open failed: %s", fnametmp); |
c57f4101 WD |
302 | + kill_hashfiles(hashfiles); |
303 | + return -1; | |
304 | + } | |
305 | + hashfile = compare_hashfiles(fd, hashfiles); | |
306 | + hashfiles = NULL; | |
47841496 | 307 | + close(fd); |
c57f4101 WD |
308 | + |
309 | + if (hashfile) { | |
310 | + first = 0; | |
311 | + linkname = strdup(hashfile->name); | |
312 | + rprintf(FINFO, "(3) linkname = %s\n", linkname); | |
313 | + kill_hashfile(hashfile); | |
314 | + } else { | |
315 | + first = 1; | |
316 | + asprintf(&linkname, "%s/%ld", hashname, | |
317 | + last_fnbr + 1); | |
318 | + rprintf(FINFO, "(4) linkname = %s\n", linkname); | |
319 | + } | |
320 | + } | |
321 | + } | |
322 | + | |
323 | + if (!first) { | |
324 | + rprintf(FINFO, "link-by-hash (existing): \"%s\" -> %s\n", | |
325 | + linkname, full_fname(fname)); | |
cad12f62 | 326 | + robust_unlink(fname); |
c57f4101 WD |
327 | + rc = do_link(linkname, fname); |
328 | + if (rc == -1) { | |
329 | + if (errno == EMLINK) { | |
330 | + first = 1; | |
331 | + free(linkname); | |
332 | + asprintf(&linkname,"%s/%ld",hashname, | |
333 | + last_fnbr + 1); | |
334 | + rprintf(FINFO, "(5) linkname = %s\n", linkname); | |
335 | + rprintf(FINFO,"link-by-hash: max link count exceeded, starting new file \"%s\".\n", linkname); | |
336 | + } else { | |
fe6407b5 WD |
337 | + rsyserr(FERROR, errno, "link \"%s\" -> \"%s\"", |
338 | + linkname, full_fname(fname)); | |
c57f4101 WD |
339 | + rc = robust_rename(fnametmp,fname,0644); |
340 | + } | |
341 | + } else { | |
342 | + do_unlink(fnametmp); | |
343 | + } | |
344 | + } | |
345 | + | |
346 | + if (first) { | |
347 | + rprintf(FINFO, "link-by-hash (new): %s -> \"%s\"\n", | |
348 | + full_fname(fname),linkname); | |
349 | + | |
350 | + rc = robust_rename(fnametmp,fname,0644); | |
351 | + if (rc != 0) { | |
fe6407b5 WD |
352 | + rsyserr(FERROR, errno, "rename \"%s\" -> \"%s\"", |
353 | + full_fname(fnametmp), full_fname(fname)); | |
c57f4101 WD |
354 | + } |
355 | + rc = do_link(fname,linkname); | |
356 | + if (rc != 0) { | |
fe6407b5 WD |
357 | + rsyserr(FERROR, errno, "link \"%s\" -> \"%s\"", |
358 | + full_fname(fname), linkname); | |
c57f4101 WD |
359 | + } |
360 | + } | |
361 | + | |
362 | + free(linkname); | |
363 | + free(hashname); | |
364 | + return rc; | |
365 | +} | |
366 | + | |
367 | +#endif | |
a7219d20 | 368 | --- orig/options.c 2005-02-01 10:39:22 |
79f132a1 | 369 | +++ options.c 2005-01-28 19:32:26 |
ac23c334 | 370 | @@ -132,6 +132,7 @@ char *log_format = NULL; |
c57f4101 WD |
371 | char *password_file = NULL; |
372 | char *rsync_path = RSYNC_PATH; | |
373 | char *backup_dir = NULL; | |
374 | +char *link_by_hash_dir = NULL; | |
375 | char backup_dir_buf[MAXPATHLEN]; | |
4c1f2ca5 | 376 | int rsync_port = 0; |
b4023df5 | 377 | int compare_dest = 0; |
79f132a1 | 378 | @@ -303,6 +304,7 @@ void usage(enum logcode F) |
c57f4101 | 379 | rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n"); |
0808daa5 WD |
380 | rprintf(F," --copy-dest=DIR ... and include copies of unchanged files\n"); |
381 | rprintf(F," --link-dest=DIR hardlink to files in DIR when unchanged\n"); | |
c57f4101 | 382 | + rprintf(F," --link-by-hash=DIR create hardlinks by hash to DIR for regular files\n"); |
c57f4101 | 383 | rprintf(F," -z, --compress compress file data\n"); |
79f132a1 WD |
384 | rprintf(F," -C, --cvs-exclude auto-ignore files the same way CVS does\n"); |
385 | rprintf(F," -f, --filter=RULE add a file-filtering RULE\n"); | |
386 | @@ -341,7 +343,7 @@ void usage(enum logcode F) | |
ac23c334 WD |
387 | enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM, |
388 | OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, | |
c57f4101 | 389 | OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, |
58a9031f WD |
390 | - OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT, OPT_MAX_SIZE, |
391 | + OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_TIMEOUT, OPT_MAX_SIZE, OPT_LINK_BY_HASH, | |
c57f4101 WD |
392 | OPT_REFUSED_BASE = 9000}; |
393 | ||
394 | static struct poptOption long_options[] = { | |
79f132a1 | 395 | @@ -408,6 +410,7 @@ static struct poptOption long_options[] |
0808daa5 WD |
396 | {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 }, |
397 | {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 }, | |
398 | {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 }, | |
5388f859 | 399 | + {"link-by-hash", 0, POPT_ARG_STRING, 0, OPT_LINK_BY_HASH, 0, 0}, |
c57f4101 WD |
400 | /* TODO: Should this take an optional int giving the compression level? */ |
401 | {"compress", 'z', POPT_ARG_NONE, &do_compression, 0, 0, 0 }, | |
5388f859 | 402 | {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 }, |
79f132a1 | 403 | @@ -802,6 +805,21 @@ int parse_arguments(int *argc, const cha |
0808daa5 WD |
404 | basis_dir[basis_dir_cnt++] = (char *)arg; |
405 | break; | |
c57f4101 WD |
406 | |
407 | + case OPT_LINK_BY_HASH: | |
408 | +#if HAVE_LINK | |
d0320a46 WD |
409 | + arg = poptGetOptArg(pc); |
410 | + if (sanitize_paths) | |
411 | + arg = sanitize_path(NULL, arg, NULL, 0); | |
412 | + link_by_hash_dir = (char *)arg; | |
c57f4101 WD |
413 | + break; |
414 | +#else | |
415 | + snprintf(err_buf, sizeof err_buf, | |
416 | + "hard links are not supported on this %s\n", | |
417 | + am_server ? "server" : "client"); | |
418 | + rprintf(FERROR, "ERROR: %s", err_buf); | |
419 | + return 0; | |
420 | +#endif | |
421 | + | |
422 | default: | |
423 | /* A large opt value means that set_refuse_options() | |
424 | * turned this option off (opt-BASE is its index). */ | |
a7219d20 | 425 | @@ -1305,6 +1323,11 @@ void server_options(char **args,int *arg |
0808daa5 | 426 | } |
7b675ff5 WD |
427 | } |
428 | ||
c57f4101 WD |
429 | + if (link_by_hash_dir && am_sender) { |
430 | + args[ac++] = "--link-by-hash"; | |
431 | + args[ac++] = link_by_hash_dir; | |
7b675ff5 WD |
432 | + } |
433 | + | |
c57f4101 | 434 | if (files_from && (!am_sender || remote_filesfrom_file)) { |
7b675ff5 WD |
435 | if (remote_filesfrom_file) { |
436 | args[ac++] = "--files-from"; | |
a7219d20 | 437 | --- orig/receiver.c 2005-02-03 02:04:20 |
b4023df5 | 438 | +++ receiver.c 2005-01-15 21:29:13 |
a7219d20 | 439 | @@ -35,6 +35,7 @@ extern int preserve_hard_links; |
ac23c334 | 440 | extern int preserve_perms; |
b4023df5 | 441 | extern int io_error; |
f6c3b300 | 442 | extern char *tmpdir; |
b4023df5 | 443 | +extern char *link_by_hash_dir; |
afbebe13 | 444 | extern char *partial_dir; |
0808daa5 | 445 | extern char *basis_dir[]; |
b4023df5 | 446 | extern int basis_dir_cnt; |
a7219d20 | 447 | @@ -136,12 +137,13 @@ static int get_tmpname(char *fnametmp, c |
c57f4101 WD |
448 | |
449 | ||
dc3ae351 WD |
450 | static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r, |
451 | - char *fname, int fd, OFF_T total_size) | |
452 | + char *fname, int fd, OFF_T total_size, char *md4) | |
c57f4101 | 453 | { |
dc3ae351 WD |
454 | static char file_sum1[MD4_SUM_LENGTH]; |
455 | static char file_sum2[MD4_SUM_LENGTH]; | |
456 | struct map_struct *mapbuf; | |
c57f4101 WD |
457 | struct sum_struct sum; |
458 | + struct mdfour mdfour_data; | |
2c2d83dc | 459 | int32 len; |
c57f4101 WD |
460 | OFF_T offset = 0; |
461 | OFF_T offset2; | |
a7219d20 | 462 | @@ -161,6 +163,9 @@ static int receive_data(int f_in, char * |
dc3ae351 WD |
463 | } else |
464 | mapbuf = NULL; | |
7b675ff5 | 465 | |
c57f4101 WD |
466 | + if (md4) |
467 | + mdfour_begin(&mdfour_data); | |
7b675ff5 WD |
468 | + |
469 | sum_init(checksum_seed); | |
c57f4101 WD |
470 | |
471 | while ((i = recv_token(f_in, &data)) != 0) { | |
a7219d20 | 472 | @@ -177,6 +182,8 @@ static int receive_data(int f_in, char * |
c57f4101 WD |
473 | cleanup_got_literal = 1; |
474 | ||
2c2d83dc | 475 | sum_update(data, i); |
c57f4101 WD |
476 | + if (md4) |
477 | + mdfour_update(&mdfour_data,data,i); | |
478 | ||
afbebe13 WD |
479 | if (fd != -1 && write_file(fd,data,i) != i) |
480 | goto report_write_error; | |
a7219d20 | 481 | @@ -203,6 +210,8 @@ static int receive_data(int f_in, char * |
c57f4101 WD |
482 | |
483 | see_token(map, len); | |
2c2d83dc | 484 | sum_update(map, len); |
c57f4101 WD |
485 | + if (md4) |
486 | + mdfour_update(&mdfour_data,map,len); | |
487 | } | |
488 | ||
afbebe13 | 489 | if (inplace) { |
a7219d20 | 490 | @@ -243,6 +252,8 @@ static int receive_data(int f_in, char * |
c57f4101 WD |
491 | } |
492 | ||
493 | sum_end(file_sum1); | |
494 | + if (md4) | |
495 | + mdfour_result(&mdfour_data, (unsigned char*)md4); | |
496 | ||
dc3ae351 WD |
497 | if (mapbuf) |
498 | unmap_file(mapbuf); | |
a7219d20 | 499 | @@ -258,7 +269,7 @@ static int receive_data(int f_in, char * |
5823d322 WD |
500 | |
501 | static void discard_receive_data(int f_in, OFF_T length) | |
502 | { | |
dc3ae351 WD |
503 | - receive_data(f_in, NULL, -1, 0, NULL, -1, length); |
504 | + receive_data(f_in, NULL, -1, 0, NULL, -1, length, NULL); | |
5823d322 WD |
505 | } |
506 | ||
507 | ||
a7219d20 | 508 | @@ -500,8 +511,12 @@ int recv_files(int f_in, struct file_lis |
982426b8 | 509 | rprintf(FINFO, "%s\n", safe_fname(fname)); |
c57f4101 WD |
510 | |
511 | /* recv file data */ | |
79f132a1 | 512 | +#if HAVE_LINK |
7b675ff5 WD |
513 | + if (link_by_hash_dir) |
514 | + file->u.sum = (char*)malloc(MD4_SUM_LENGTH); | |
c57f4101 | 515 | +#endif |
dc3ae351 WD |
516 | recv_ok = receive_data(f_in, fnamecmp, fd1, st.st_size, |
517 | - fname, fd2, file->length); | |
518 | + fname, fd2, file->length, file->u.sum); | |
c57f4101 WD |
519 | |
520 | log_recv(file, &initial_stats); | |
521 | ||
a7219d20 | 522 | --- orig/rsync.c 2005-02-01 10:39:22 |
d0320a46 | 523 | +++ rsync.c 2004-08-13 18:14:34 |
a7219d20 | 524 | @@ -36,6 +36,7 @@ extern int force_delete; |
7b675ff5 | 525 | extern int recurse; |
d5753a22 | 526 | extern int keep_dirlinks; |
c57f4101 WD |
527 | extern int make_backups; |
528 | +extern char *link_by_hash_dir; | |
f6c3b300 WD |
529 | extern char *backup_dir; |
530 | extern int inplace; | |
c57f4101 | 531 | |
a7219d20 | 532 | @@ -282,7 +283,12 @@ void finish_transfer(char *fname, char * |
13bed3dd WD |
533 | /* move tmp file over real file */ |
534 | if (verbose > 2) | |
535 | rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname); | |
d0320a46 | 536 | - ret = robust_rename(fnametmp, fname, file->mode & INITACCESSPERMS); |
79f132a1 | 537 | +#if HAVE_LINK |
2eb075b2 | 538 | + if (link_by_hash_dir) |
7b675ff5 | 539 | + ret = link_by_hash(fnametmp, fname, file); |
2eb075b2 | 540 | + else |
c57f4101 | 541 | +#endif |
2eb075b2 | 542 | + ret = robust_rename(fnametmp, fname, file->mode & INITACCESSPERMS); |
54691942 | 543 | if (ret < 0) { |
fe6407b5 | 544 | rsyserr(FERROR, errno, "%s %s -> \"%s\"", |
d0320a46 | 545 | ret == -2 ? "copy" : "rename", |
a7219d20 | 546 | --- orig/rsync.h 2005-02-03 02:04:20 |
13bed3dd | 547 | +++ rsync.h 2004-07-03 20:20:15 |
a7219d20 | 548 | @@ -598,6 +598,14 @@ struct stats { |
c57f4101 WD |
549 | int current_file_index; |
550 | }; | |
551 | ||
552 | +struct hashfile_struct { | |
553 | + struct hashfile_struct *next; | |
554 | + struct hashfile_struct *prev; | |
555 | + char *name; | |
556 | + int fd; | |
557 | + uint32 nlink; | |
558 | +}; | |
559 | + | |
560 | ||
a7219d20 WD |
561 | #include "byteorder.h" |
562 | #include "lib/mdfour.h" | |
563 | --- orig/rsync.yo 2005-02-01 10:39:23 | |
79f132a1 | 564 | +++ rsync.yo 2005-01-28 19:32:45 |
a7219d20 | 565 | @@ -354,6 +354,7 @@ to the detailed description below for a |
79f132a1 WD |
566 | --compare-dest=DIR also compare received files relative to DIR |
567 | --copy-dest=DIR ... and include copies of unchanged files | |
568 | --link-dest=DIR hardlink to files in DIR when unchanged | |
569 | + --link-by-hash=DIR create hardlinks by hash to DIR for regular files | |
570 | -z, --compress compress file data | |
571 | -C, --cvs-exclude auto-ignore files in the same way CVS does | |
572 | -f, --filter=RULE add a file-filtering RULE |