Commit | Line | Data |
---|---|---|
c627d613 | 1 | /* |
a039749b | 2 | Copyright (C) by Andrew Tridgell 1996, 2000 |
c627d613 | 3 | Copyright (C) Paul Mackerras 1996 |
e420b9d8 | 4 | Copyright (C) 2001 by Martin Pool <mbp@samba.org> |
c627d613 AT |
5 | |
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
d41c7d02 DD |
21 | #define False 0 |
22 | #define True 1 | |
23 | ||
c627d613 AT |
24 | #define BLOCK_SIZE 700 |
25 | #define RSYNC_RSH_ENV "RSYNC_RSH" | |
7b8356d0 | 26 | |
c627d613 | 27 | #define RSYNC_NAME "rsync" |
f0fca04e | 28 | #define RSYNCD_CONF "/etc/rsyncd.conf" |
f0fca04e | 29 | |
5e71c444 | 30 | #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock" |
f7632fc6 AT |
31 | #define URL_PREFIX "rsync://" |
32 | ||
c627d613 AT |
33 | #define BACKUP_SUFFIX "~" |
34 | ||
1b01b295 | 35 | /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is |
6543dc0c | 36 | incompatible with older versions :-( */ |
1b01b295 AT |
37 | #define CHAR_OFFSET 0 |
38 | ||
39 | ||
3333ffbd | 40 | #define FLAG_DELETE (1<<0) |
4fe159a8 | 41 | #define SAME_MODE (1<<1) |
dc5ddbcc | 42 | #define SAME_RDEV (1<<2) |
4fe159a8 AT |
43 | #define SAME_UID (1<<3) |
44 | #define SAME_GID (1<<4) | |
45 | #define SAME_DIR (1<<5) | |
46 | #define SAME_NAME SAME_DIR | |
47 | #define LONG_NAME (1<<6) | |
48 | #define SAME_TIME (1<<7) | |
49 | ||
c627d613 | 50 | /* update this if you make incompatible changes */ |
063393d6 MP |
51 | #define PROTOCOL_VERSION 25 |
52 | ||
53 | /* We refuse to interoperate with versions that are not in this range. | |
54 | * Note that we assume we'll work with later versions: the onus is on | |
55 | * people writing them to make sure that they don't send us anything | |
56 | * we won't understand. | |
57 | * | |
58 | * There are two possible explanations for the limit at thirty: either | |
59 | * to allow new major-rev versions that do not interoperate with us, | |
60 | * and (more likely) so that we can detect an attempt to connect rsync | |
61 | * to a non-rsync server, which is unlikely to begin by sending a byte | |
62 | * between 15 and 30. */ | |
ff41a59f | 63 | #define MIN_PROTOCOL_VERSION 15 |
6ba9279f | 64 | #define MAX_PROTOCOL_VERSION 30 |
c627d613 | 65 | |
9486289c AT |
66 | #define RSYNC_PORT 873 |
67 | ||
d867229b | 68 | #define SPARSE_WRITE_SIZE (1024) |
dc5ddbcc | 69 | #define WRITE_SIZE (32*1024) |
34ccb63e | 70 | #define CHUNK_SIZE (32*1024) |
4440b8aa | 71 | #define MAX_MAP_SIZE (256*1024) |
e3fe383a | 72 | #define IO_BUFFER_SIZE (4092) |
c627d613 | 73 | |
874895d5 | 74 | #define MAX_ARGS 1000 |
f0fca04e | 75 | |
8d9dc9f9 | 76 | #define MPLEX_BASE 7 |
ff41a59f | 77 | |
e420b9d8 MP |
78 | /* Log values. I *think* what these mean is: FLOG goes to the server |
79 | * logfile; FERROR and FINFO try to end up on the client, with | |
80 | * different levels of filtering. */ | |
a039749b | 81 | enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; |
7bec6a5c | 82 | |
65417579 AT |
83 | #include "errcode.h" |
84 | ||
c627d613 AT |
85 | #include "config.h" |
86 | ||
24d95c03 AT |
87 | #if HAVE_REMSH |
88 | #define RSYNC_RSH "remsh" | |
89 | #else | |
90 | #define RSYNC_RSH "rsh" | |
91 | #endif | |
92 | ||
c627d613 | 93 | #include <sys/types.h> |
6ed67e6d | 94 | |
c627d613 AT |
95 | #ifdef HAVE_UNISTD_H |
96 | #include <unistd.h> | |
97 | #endif | |
98 | #include <stdio.h> | |
3591c066 | 99 | #include <stddef.h> |
c627d613 AT |
100 | |
101 | #ifdef HAVE_SYS_PARAM_H | |
102 | #include <sys/param.h> | |
103 | #endif | |
104 | ||
d7b305fd AT |
105 | #ifdef HAVE_STDLIB_H |
106 | #include <stdlib.h> | |
107 | #endif | |
108 | ||
fdd71e17 AT |
109 | #ifdef HAVE_SYS_SOCKET_H |
110 | #include <sys/socket.h> | |
111 | #endif | |
112 | ||
d7b305fd AT |
113 | #ifdef HAVE_STRING_H |
114 | #include <string.h> | |
c627d613 AT |
115 | #endif |
116 | ||
c627d613 AT |
117 | #ifdef HAVE_MALLOC_H |
118 | #include <malloc.h> | |
119 | #endif | |
120 | ||
121 | #ifdef TIME_WITH_SYS_TIME | |
122 | #include <sys/time.h> | |
123 | #include <time.h> | |
124 | #else | |
125 | #ifdef HAVE_SYS_TIME_H | |
126 | #include <sys/time.h> | |
127 | #else | |
128 | #include <time.h> | |
129 | #endif | |
130 | #endif | |
131 | ||
132 | #ifdef HAVE_FCNTL_H | |
133 | #include <fcntl.h> | |
134 | #else | |
135 | #ifdef HAVE_SYS_FCNTL_H | |
136 | #include <sys/fcntl.h> | |
137 | #endif | |
138 | #endif | |
139 | ||
140 | #include <sys/stat.h> | |
141 | ||
94481d91 AT |
142 | #ifdef HAVE_SYS_IOCTL_H |
143 | #include <sys/ioctl.h> | |
144 | #endif | |
145 | ||
146 | #ifdef HAVE_SYS_FILIO_H | |
147 | #include <sys/filio.h> | |
148 | #endif | |
149 | ||
c627d613 AT |
150 | #include <signal.h> |
151 | #ifdef HAVE_SYS_WAIT_H | |
152 | #include <sys/wait.h> | |
153 | #endif | |
154 | #ifdef HAVE_CTYPE_H | |
155 | #include <ctype.h> | |
156 | #endif | |
157 | #ifdef HAVE_GRP_H | |
158 | #include <grp.h> | |
159 | #endif | |
160 | #include <errno.h> | |
161 | ||
c627d613 AT |
162 | #ifdef HAVE_UTIME_H |
163 | #include <utime.h> | |
164 | #endif | |
165 | ||
8bf73749 AT |
166 | #ifdef HAVE_SYS_SELECT_H |
167 | #include <sys/select.h> | |
168 | #endif | |
169 | ||
773f2bd4 AT |
170 | #ifdef HAVE_SYS_MODE_H |
171 | /* apparently AIX needs this for S_ISLNK */ | |
05a6556d | 172 | #ifndef S_ISLNK |
773f2bd4 AT |
173 | #include <sys/mode.h> |
174 | #endif | |
05a6556d | 175 | #endif |
773f2bd4 | 176 | |
c627d613 AT |
177 | #ifdef HAVE_FNMATCH |
178 | #include <fnmatch.h> | |
179 | #else | |
180 | #include "lib/fnmatch.h" | |
181 | #endif | |
182 | ||
932be9aa | 183 | #ifdef HAVE_GLOB_H |
874895d5 AT |
184 | #include <glob.h> |
185 | #endif | |
186 | ||
f6c34742 AT |
187 | /* these are needed for the uid/gid mapping code */ |
188 | #include <pwd.h> | |
189 | #include <grp.h> | |
190 | ||
9486289c | 191 | #include <stdarg.h> |
f0fca04e AT |
192 | #include <netinet/in.h> |
193 | #include <arpa/inet.h> | |
194 | #include <netdb.h> | |
ff8b29b8 | 195 | #include <syslog.h> |
6c8f5373 | 196 | #include <sys/file.h> |
9486289c | 197 | |
e8f5b936 AT |
198 | #if HAVE_DIRENT_H |
199 | # include <dirent.h> | |
200 | #else | |
201 | # define dirent direct | |
202 | # if HAVE_SYS_NDIR_H | |
203 | # include <sys/ndir.h> | |
204 | # endif | |
205 | # if HAVE_SYS_DIR_H | |
206 | # include <sys/dir.h> | |
207 | # endif | |
208 | # if HAVE_NDIR_H | |
209 | # include <ndir.h> | |
210 | # endif | |
211 | #endif | |
212 | ||
213 | #ifdef HAVE_COMPAT_H | |
214 | #include <compat.h> | |
215 | #endif | |
216 | ||
217 | ||
f0fca04e AT |
218 | #define BOOL int |
219 | ||
c627d613 AT |
220 | #ifndef uchar |
221 | #define uchar unsigned char | |
222 | #endif | |
223 | ||
debb4505 AT |
224 | #if HAVE_UNSIGNED_CHAR |
225 | #define schar signed char | |
226 | #else | |
227 | #define schar char | |
228 | #endif | |
229 | ||
c627d613 AT |
230 | #ifndef int32 |
231 | #if (SIZEOF_INT == 4) | |
232 | #define int32 int | |
233 | #elif (SIZEOF_LONG == 4) | |
234 | #define int32 long | |
235 | #elif (SIZEOF_SHORT == 4) | |
236 | #define int32 short | |
8de330a3 AT |
237 | #else |
238 | /* I hope this works */ | |
239 | #define int32 int | |
f3737e06 | 240 | #define LARGE_INT32 |
c627d613 AT |
241 | #endif |
242 | #endif | |
243 | ||
244 | #ifndef uint32 | |
245 | #define uint32 unsigned int32 | |
246 | #endif | |
247 | ||
bcacc18b AT |
248 | #if HAVE_OFF64_T |
249 | #define OFF_T off64_t | |
250 | #define STRUCT_STAT struct stat64 | |
251 | #else | |
252 | #define OFF_T off_t | |
253 | #define STRUCT_STAT struct stat | |
254 | #endif | |
255 | ||
256 | #if HAVE_OFF64_T | |
257 | #define int64 off64_t | |
258 | #elif (SIZEOF_LONG == 8) | |
3bee6733 AT |
259 | #define int64 long |
260 | #elif (SIZEOF_INT == 8) | |
261 | #define int64 int | |
262 | #elif HAVE_LONGLONG | |
71c46176 AT |
263 | #define int64 long long |
264 | #else | |
265 | #define int64 off_t | |
3bee6733 | 266 | #define NO_INT64 |
71c46176 | 267 | #endif |
c627d613 | 268 | |
c29ee43d | 269 | #if HAVE_SHORT_INO_T |
e2ba16cc MP |
270 | # define INO_T uint32 |
271 | #elif HAVE_INO_T | |
272 | # define INO_T ino_t | |
c29ee43d | 273 | #else |
e2ba16cc | 274 | # define INO_T unsigned |
c29ee43d AT |
275 | #endif |
276 | ||
c627d613 AT |
277 | #ifndef MIN |
278 | #define MIN(a,b) ((a)<(b)?(a):(b)) | |
279 | #endif | |
280 | ||
281 | #ifndef MAX | |
282 | #define MAX(a,b) ((a)>(b)?(a):(b)) | |
283 | #endif | |
284 | ||
d41c7d02 DD |
285 | #ifndef MAXHOSTNAMELEN |
286 | #define MAXHOSTNAMELEN 256 | |
287 | #endif | |
288 | ||
c627d613 | 289 | /* the length of the md4 checksum */ |
ebb0a6f6 | 290 | #define MD4_SUM_LENGTH 16 |
c627d613 AT |
291 | #define SUM_LENGTH 16 |
292 | ||
293 | #ifndef MAXPATHLEN | |
294 | #define MAXPATHLEN 1024 | |
295 | #endif | |
296 | ||
0473e2a1 AT |
297 | #ifndef INADDR_NONE |
298 | #define INADDR_NONE 0xffffffff | |
299 | #endif | |
300 | ||
c627d613 | 301 | struct file_struct { |
3333ffbd | 302 | unsigned flags; |
3ec4dd97 | 303 | time_t modtime; |
bcacc18b | 304 | OFF_T length; |
3ec4dd97 | 305 | mode_t mode; |
c29ee43d | 306 | INO_T inode; |
3ec4dd97 AT |
307 | dev_t dev; |
308 | dev_t rdev; | |
309 | uid_t uid; | |
310 | gid_t gid; | |
311 | char *basename; | |
312 | char *dirname; | |
313 | char *basedir; | |
314 | char *link; | |
2d0bb8eb | 315 | char *sum; |
c627d613 AT |
316 | }; |
317 | ||
4440b8aa | 318 | |
3d382777 AT |
319 | #define ARENA_SIZE (32 * 1024) |
320 | ||
321 | struct string_area { | |
322 | char *base; | |
323 | char *end; | |
324 | char *current; | |
325 | struct string_area *next; | |
326 | }; | |
327 | ||
c627d613 | 328 | struct file_list { |
a800434a AT |
329 | int count; |
330 | int malloced; | |
331 | struct file_struct **files; | |
3d382777 | 332 | struct string_area *string_area; |
c627d613 AT |
333 | }; |
334 | ||
335 | struct sum_buf { | |
c29ee43d AT |
336 | OFF_T offset; /* offset in file of this chunk */ |
337 | int len; /* length of chunk of file */ | |
338 | int i; /* index of this chunk */ | |
339 | uint32 sum1; /* simple checksum */ | |
340 | char sum2[SUM_LENGTH]; /* checksum */ | |
c627d613 AT |
341 | }; |
342 | ||
343 | struct sum_struct { | |
bcacc18b | 344 | OFF_T flength; /* total file length */ |
c627d613 AT |
345 | int count; /* how many chunks */ |
346 | int remainder; /* flength % block_length */ | |
347 | int n; /* block_length */ | |
348 | struct sum_buf *sums; /* points to info for each chunk */ | |
349 | }; | |
350 | ||
c6e7fcb4 | 351 | struct map_struct { |
4440b8aa | 352 | char *p; |
0b910560 | 353 | int fd,p_size,p_len; |
4440b8aa | 354 | OFF_T file_size, p_offset, p_fd_offset; |
c6e7fcb4 | 355 | }; |
c627d613 | 356 | |
2b6b4d53 | 357 | struct exclude_struct { |
2b6b4d53 AT |
358 | char *pattern; |
359 | int regular_exp; | |
a8b9d4ed | 360 | int fnmatch_flags; |
2b6b4d53 AT |
361 | int include; |
362 | int directory; | |
363 | int local; | |
364 | }; | |
365 | ||
a800434a AT |
366 | struct stats { |
367 | int64 total_size; | |
368 | int64 total_transferred_size; | |
369 | int64 total_written; | |
370 | int64 total_read; | |
371 | int64 literal_data; | |
372 | int64 matched_data; | |
373 | int flist_size; | |
374 | int num_files; | |
375 | int num_transferred_files; | |
376 | }; | |
377 | ||
2b6b4d53 | 378 | |
3b3a2fbc AT |
379 | /* we need this function because of the silly way in which duplicate |
380 | entries are handled in the file lists - we can't change this | |
381 | without breaking existing versions */ | |
71c46176 | 382 | static inline int flist_up(struct file_list *flist, int i) |
3b3a2fbc | 383 | { |
3ec4dd97 | 384 | while (!flist->files[i]->basename) i++; |
3b3a2fbc AT |
385 | return i; |
386 | } | |
387 | ||
c627d613 AT |
388 | #include "byteorder.h" |
389 | #include "version.h" | |
390 | #include "proto.h" | |
8de330a3 | 391 | #include "lib/mdfour.h" |
c627d613 AT |
392 | |
393 | #if !HAVE_STRERROR | |
394 | extern char *sys_errlist[]; | |
395 | #define strerror(i) sys_errlist[i] | |
396 | #endif | |
397 | ||
398 | #ifndef HAVE_STRCHR | |
399 | # define strchr index | |
400 | # define strrchr rindex | |
401 | #endif | |
402 | ||
c627d613 AT |
403 | #ifndef HAVE_ERRNO_DECL |
404 | extern int errno; | |
405 | #endif | |
406 | ||
cbbe4892 | 407 | #define SUPPORT_LINKS HAVE_READLINK |
dc5ddbcc | 408 | #define SUPPORT_HARD_LINKS HAVE_LINK |
c627d613 | 409 | |
8bf73749 AT |
410 | #ifndef HAVE_LCHOWN |
411 | #define lchown chown | |
412 | #endif | |
413 | ||
ac1eb754 | 414 | #define SIGNAL_CAST (RETSIGTYPE (*)()) |
720b47f2 AT |
415 | |
416 | #ifndef EWOULDBLOCK | |
417 | #define EWOULDBLOCK EAGAIN | |
418 | #endif | |
182dca5c | 419 | |
7b8356d0 AT |
420 | #ifndef STDIN_FILENO |
421 | #define STDIN_FILENO 0 | |
422 | #endif | |
423 | ||
424 | #ifndef STDOUT_FILENO | |
425 | #define STDOUT_FILENO 1 | |
426 | #endif | |
427 | ||
428 | #ifndef STDERR_FILENO | |
429 | #define STDERR_FILENO 2 | |
430 | #endif | |
431 | ||
432 | #ifndef S_IWUSR | |
433 | #define S_IWUSR 0200 | |
434 | #endif | |
435 | ||
b280a1f4 AT |
436 | #ifndef _S_IFMT |
437 | #define _S_IFMT 0170000 | |
438 | #endif | |
439 | ||
440 | #ifndef _S_IFLNK | |
441 | #define _S_IFLNK 0120000 | |
442 | #endif | |
443 | ||
444 | #ifndef S_ISLNK | |
445 | #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK)) | |
446 | #endif | |
447 | ||
1e9f155a AT |
448 | #ifndef S_ISBLK |
449 | #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK)) | |
450 | #endif | |
451 | ||
452 | #ifndef S_ISCHR | |
453 | #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR)) | |
454 | #endif | |
455 | ||
a0b65b18 AT |
456 | #ifndef S_ISSOCK |
457 | #ifdef _S_IFSOCK | |
458 | #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK)) | |
459 | #else | |
460 | #define S_ISSOCK(mode) (0) | |
461 | #endif | |
462 | #endif | |
463 | ||
464 | #ifndef S_ISFIFO | |
465 | #ifdef _S_IFIFO | |
466 | #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO)) | |
467 | #else | |
468 | #define S_ISFIFO(mode) (0) | |
469 | #endif | |
470 | #endif | |
471 | ||
1e9f155a AT |
472 | #ifndef S_ISDIR |
473 | #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR)) | |
474 | #endif | |
475 | ||
476 | #ifndef S_ISREG | |
477 | #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG)) | |
478 | #endif | |
479 | ||
f0359dd0 AT |
480 | /* work out what fcntl flag to use for non-blocking */ |
481 | #ifdef O_NONBLOCK | |
482 | # define NONBLOCK_FLAG O_NONBLOCK | |
483 | #elif defined(SYSV) | |
484 | # define NONBLOCK_FLAG O_NDELAY | |
485 | #else | |
486 | # define NONBLOCK_FLAG FNDELAY | |
487 | #endif | |
488 | ||
a0b65b18 AT |
489 | |
490 | #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode)) | |
7bec6a5c | 491 | |
972a3619 DD |
492 | #ifndef ACCESSPERMS |
493 | #define ACCESSPERMS 0777 | |
494 | #endif | |
5afd8aed DD |
495 | /* Initial mask on permissions given to temporary files. Mask off setuid |
496 | bits and group access because of potential race-condition security | |
497 | holes, and mask other access because mode 707 is bizarre */ | |
972a3619 | 498 | #define INITACCESSPERMS 0700 |
e08bfe12 AT |
499 | |
500 | /* handler for null strings in printf format */ | |
501 | #define NS(s) ((s)?(s):"<NULL>") | |
502 | ||
503 | /* use magic gcc attributes to catch format errors */ | |
ff41a59f | 504 | void rprintf(enum logcode , const char *, ...) |
e08bfe12 AT |
505 | #ifdef __GNUC__ |
506 | __attribute__ ((format (printf, 2, 3))) | |
507 | #endif | |
508 | ; | |
7b3d4257 | 509 | |
a039749b MP |
510 | /* This is just like rprintf, but it also tries to print some |
511 | * representation of the error code. Normally errcode = errno. */ | |
512 | void rsyserr(enum logcode, int, const char *, ...) | |
513 | #ifdef __GNUC__ | |
514 | __attribute__ ((format (printf, 3, 4))) | |
515 | #endif | |
516 | ; | |
517 | ||
7b3d4257 AT |
518 | #ifdef REPLACE_INET_NTOA |
519 | #define inet_ntoa rep_inet_ntoa | |
520 | #endif | |
5a788ade AT |
521 | |
522 | ||
523 | #ifndef HAVE_STRLCPY | |
524 | size_t strlcpy(char *d, const char *s, size_t bufsize); | |
525 | #endif | |
526 | ||
527 | #ifndef HAVE_STRLCAT | |
528 | size_t strlcat(char *d, const char *s, size_t bufsize); | |
529 | #endif | |
530 | ||
82980a23 AT |
531 | #ifndef WEXITSTATUS |
532 | #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF)) | |
533 | #endif | |
534 | ||
a9766ef1 | 535 | #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__) |