Commit | Line | Data |
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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 | #define BLOCK_SIZE 700 | |
21 | #define RSYNC_RSH_ENV "RSYNC_RSH" | |
7b8356d0 | 22 | |
c627d613 | 23 | #define RSYNC_NAME "rsync" |
f0fca04e | 24 | #define RSYNCD_CONF "/etc/rsyncd.conf" |
f0fca04e | 25 | |
c627d613 AT |
26 | #define BACKUP_SUFFIX "~" |
27 | ||
1b01b295 AT |
28 | /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is |
29 | imcompatible with older versions :-( */ | |
30 | #define CHAR_OFFSET 0 | |
31 | ||
32 | ||
3333ffbd | 33 | #define FLAG_DELETE (1<<0) |
4fe159a8 | 34 | #define SAME_MODE (1<<1) |
dc5ddbcc | 35 | #define SAME_RDEV (1<<2) |
4fe159a8 AT |
36 | #define SAME_UID (1<<3) |
37 | #define SAME_GID (1<<4) | |
38 | #define SAME_DIR (1<<5) | |
39 | #define SAME_NAME SAME_DIR | |
40 | #define LONG_NAME (1<<6) | |
41 | #define SAME_TIME (1<<7) | |
42 | ||
c627d613 | 43 | /* update this if you make incompatible changes */ |
8d9dc9f9 | 44 | #define PROTOCOL_VERSION 18 |
3ec4dd97 | 45 | #define MIN_PROTOCOL_VERSION 11 |
6ba9279f | 46 | #define MAX_PROTOCOL_VERSION 30 |
c627d613 | 47 | |
9486289c AT |
48 | #define RSYNC_PORT 873 |
49 | ||
d867229b | 50 | #define SPARSE_WRITE_SIZE (1024) |
dc5ddbcc | 51 | #define WRITE_SIZE (32*1024) |
34ccb63e | 52 | #define CHUNK_SIZE (32*1024) |
2f326946 | 53 | #define MAX_MAP_SIZE (1*1024*1024) |
d6dead6b | 54 | #define IO_BUFFER_SIZE (4096) |
5dd7e031 | 55 | #define MAX_READ_BUFFER (1024*1024) |
c627d613 | 56 | |
874895d5 | 57 | #define MAX_ARGS 1000 |
f0fca04e | 58 | |
58d433ab AT |
59 | #define BLOCKING_TIMEOUT 10 |
60 | ||
8d9dc9f9 | 61 | #define MPLEX_BASE 7 |
9486289c AT |
62 | #define FERROR 1 |
63 | #define FINFO 2 | |
7bec6a5c | 64 | |
c627d613 AT |
65 | #include "config.h" |
66 | ||
24d95c03 AT |
67 | #if HAVE_REMSH |
68 | #define RSYNC_RSH "remsh" | |
69 | #else | |
70 | #define RSYNC_RSH "rsh" | |
71 | #endif | |
72 | ||
c627d613 AT |
73 | #include <sys/types.h> |
74 | #ifdef HAVE_UNISTD_H | |
75 | #include <unistd.h> | |
76 | #endif | |
77 | #include <stdio.h> | |
3591c066 | 78 | #include <stddef.h> |
c627d613 AT |
79 | |
80 | #ifdef HAVE_SYS_PARAM_H | |
81 | #include <sys/param.h> | |
82 | #endif | |
83 | ||
d7b305fd AT |
84 | #ifdef HAVE_STDLIB_H |
85 | #include <stdlib.h> | |
86 | #endif | |
87 | ||
fdd71e17 AT |
88 | #ifdef HAVE_SYS_SOCKET_H |
89 | #include <sys/socket.h> | |
90 | #endif | |
91 | ||
d7b305fd AT |
92 | #ifdef HAVE_STRING_H |
93 | #include <string.h> | |
c627d613 AT |
94 | #endif |
95 | ||
96 | #ifdef HAVE_COMPAT_H | |
97 | #include <compat.h> | |
98 | #endif | |
99 | ||
100 | #ifdef HAVE_MALLOC_H | |
101 | #include <malloc.h> | |
102 | #endif | |
103 | ||
104 | #ifdef TIME_WITH_SYS_TIME | |
105 | #include <sys/time.h> | |
106 | #include <time.h> | |
107 | #else | |
108 | #ifdef HAVE_SYS_TIME_H | |
109 | #include <sys/time.h> | |
110 | #else | |
111 | #include <time.h> | |
112 | #endif | |
113 | #endif | |
114 | ||
115 | #ifdef HAVE_FCNTL_H | |
116 | #include <fcntl.h> | |
117 | #else | |
118 | #ifdef HAVE_SYS_FCNTL_H | |
119 | #include <sys/fcntl.h> | |
120 | #endif | |
121 | #endif | |
122 | ||
123 | #include <sys/stat.h> | |
124 | ||
94481d91 AT |
125 | #ifdef HAVE_SYS_IOCTL_H |
126 | #include <sys/ioctl.h> | |
127 | #endif | |
128 | ||
129 | #ifdef HAVE_SYS_FILIO_H | |
130 | #include <sys/filio.h> | |
131 | #endif | |
132 | ||
c627d613 AT |
133 | #include <signal.h> |
134 | #ifdef HAVE_SYS_WAIT_H | |
135 | #include <sys/wait.h> | |
136 | #endif | |
137 | #ifdef HAVE_CTYPE_H | |
138 | #include <ctype.h> | |
139 | #endif | |
140 | #ifdef HAVE_GRP_H | |
141 | #include <grp.h> | |
142 | #endif | |
143 | #include <errno.h> | |
144 | ||
7bec6a5c | 145 | #ifdef HAVE_MMAP |
c627d613 | 146 | #include <sys/mman.h> |
7bec6a5c AT |
147 | #endif |
148 | ||
c627d613 AT |
149 | #ifdef HAVE_UTIME_H |
150 | #include <utime.h> | |
151 | #endif | |
152 | ||
8bf73749 AT |
153 | #ifdef HAVE_SYS_SELECT_H |
154 | #include <sys/select.h> | |
155 | #endif | |
156 | ||
773f2bd4 AT |
157 | #ifdef HAVE_SYS_MODE_H |
158 | /* apparently AIX needs this for S_ISLNK */ | |
05a6556d | 159 | #ifndef S_ISLNK |
773f2bd4 AT |
160 | #include <sys/mode.h> |
161 | #endif | |
05a6556d | 162 | #endif |
773f2bd4 | 163 | |
c627d613 AT |
164 | #ifdef HAVE_FNMATCH |
165 | #include <fnmatch.h> | |
166 | #else | |
167 | #include "lib/fnmatch.h" | |
168 | #endif | |
169 | ||
170 | #ifdef HAVE_GETOPT_LONG | |
171 | #include <getopt.h> | |
172 | #else | |
173 | #include "lib/getopt.h" | |
174 | #endif | |
175 | ||
874895d5 AT |
176 | #ifdef HAVE_GLOB |
177 | #include <glob.h> | |
178 | #endif | |
179 | ||
f6c34742 AT |
180 | /* these are needed for the uid/gid mapping code */ |
181 | #include <pwd.h> | |
182 | #include <grp.h> | |
183 | ||
9486289c | 184 | #include <stdarg.h> |
f0fca04e AT |
185 | #include <netinet/in.h> |
186 | #include <arpa/inet.h> | |
187 | #include <netdb.h> | |
ff8b29b8 | 188 | #include <syslog.h> |
6c8f5373 | 189 | #include <sys/file.h> |
9486289c | 190 | |
cbbe4892 AT |
191 | #ifndef S_IFLNK |
192 | #define S_IFLNK 0120000 | |
193 | #endif | |
c627d613 AT |
194 | |
195 | #ifndef S_ISLNK | |
196 | #define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK) | |
197 | #endif | |
198 | ||
f0fca04e AT |
199 | #define BOOL int |
200 | ||
c627d613 AT |
201 | #ifndef uchar |
202 | #define uchar unsigned char | |
203 | #endif | |
204 | ||
debb4505 AT |
205 | #if HAVE_UNSIGNED_CHAR |
206 | #define schar signed char | |
207 | #else | |
208 | #define schar char | |
209 | #endif | |
210 | ||
c627d613 AT |
211 | #ifndef int32 |
212 | #if (SIZEOF_INT == 4) | |
213 | #define int32 int | |
214 | #elif (SIZEOF_LONG == 4) | |
215 | #define int32 long | |
216 | #elif (SIZEOF_SHORT == 4) | |
217 | #define int32 short | |
218 | #endif | |
219 | #endif | |
220 | ||
221 | #ifndef uint32 | |
222 | #define uint32 unsigned int32 | |
223 | #endif | |
224 | ||
bcacc18b AT |
225 | #if HAVE_OFF64_T |
226 | #define OFF_T off64_t | |
227 | #define STRUCT_STAT struct stat64 | |
228 | #else | |
229 | #define OFF_T off_t | |
230 | #define STRUCT_STAT struct stat | |
231 | #endif | |
232 | ||
233 | #if HAVE_OFF64_T | |
234 | #define int64 off64_t | |
235 | #elif (SIZEOF_LONG == 8) | |
3bee6733 AT |
236 | #define int64 long |
237 | #elif (SIZEOF_INT == 8) | |
238 | #define int64 int | |
239 | #elif HAVE_LONGLONG | |
71c46176 AT |
240 | #define int64 long long |
241 | #else | |
242 | #define int64 off_t | |
3bee6733 | 243 | #define NO_INT64 |
71c46176 | 244 | #endif |
c627d613 AT |
245 | |
246 | #ifndef MIN | |
247 | #define MIN(a,b) ((a)<(b)?(a):(b)) | |
248 | #endif | |
249 | ||
250 | #ifndef MAX | |
251 | #define MAX(a,b) ((a)>(b)?(a):(b)) | |
252 | #endif | |
253 | ||
254 | /* the length of the md4 checksum */ | |
ebb0a6f6 | 255 | #define MD4_SUM_LENGTH 16 |
c627d613 AT |
256 | #define SUM_LENGTH 16 |
257 | ||
258 | #ifndef MAXPATHLEN | |
259 | #define MAXPATHLEN 1024 | |
260 | #endif | |
261 | ||
0473e2a1 AT |
262 | #ifndef INADDR_NONE |
263 | #define INADDR_NONE 0xffffffff | |
264 | #endif | |
265 | ||
c627d613 | 266 | struct file_struct { |
3333ffbd | 267 | unsigned flags; |
3ec4dd97 | 268 | time_t modtime; |
bcacc18b | 269 | OFF_T length; |
3ec4dd97 AT |
270 | mode_t mode; |
271 | ino_t inode; | |
272 | dev_t dev; | |
273 | dev_t rdev; | |
274 | uid_t uid; | |
275 | gid_t gid; | |
276 | char *basename; | |
277 | char *dirname; | |
278 | char *basedir; | |
279 | char *link; | |
2d0bb8eb | 280 | char *sum; |
c627d613 AT |
281 | }; |
282 | ||
283 | struct file_list { | |
284 | int count; | |
285 | int malloced; | |
3ec4dd97 | 286 | struct file_struct **files; |
c627d613 AT |
287 | }; |
288 | ||
289 | struct sum_buf { | |
bcacc18b | 290 | OFF_T offset; /* offset in file of this chunk */ |
c627d613 AT |
291 | int len; /* length of chunk of file */ |
292 | int i; /* index of this chunk */ | |
293 | uint32 sum1; /* simple checksum */ | |
ebb0a6f6 | 294 | char sum2[SUM_LENGTH]; /* checksum */ |
c627d613 AT |
295 | }; |
296 | ||
297 | struct sum_struct { | |
bcacc18b | 298 | OFF_T flength; /* total file length */ |
c627d613 AT |
299 | int count; /* how many chunks */ |
300 | int remainder; /* flength % block_length */ | |
301 | int n; /* block_length */ | |
302 | struct sum_buf *sums; /* points to info for each chunk */ | |
303 | }; | |
304 | ||
c6e7fcb4 | 305 | struct map_struct { |
0b910560 AT |
306 | char *map,*p; |
307 | int fd,p_size,p_len; | |
bcacc18b | 308 | OFF_T size, p_offset; |
c6e7fcb4 | 309 | }; |
c627d613 | 310 | |
3b3a2fbc AT |
311 | /* we need this function because of the silly way in which duplicate |
312 | entries are handled in the file lists - we can't change this | |
313 | without breaking existing versions */ | |
71c46176 | 314 | static inline int flist_up(struct file_list *flist, int i) |
3b3a2fbc | 315 | { |
3ec4dd97 | 316 | while (!flist->files[i]->basename) i++; |
3b3a2fbc AT |
317 | return i; |
318 | } | |
319 | ||
d6e6ecbd AT |
320 | #if HAVE_DIRENT_H |
321 | # include <dirent.h> | |
322 | #else | |
323 | # define dirent direct | |
324 | # if HAVE_SYS_NDIR_H | |
325 | # include <sys/ndir.h> | |
326 | # endif | |
327 | # if HAVE_SYS_DIR_H | |
328 | # include <sys/dir.h> | |
329 | # endif | |
330 | # if HAVE_NDIR_H | |
331 | # include <ndir.h> | |
332 | # endif | |
333 | #endif | |
3b3a2fbc | 334 | |
c627d613 AT |
335 | #include "byteorder.h" |
336 | #include "version.h" | |
337 | #include "proto.h" | |
338 | #include "md4.h" | |
339 | ||
340 | #if !HAVE_STRERROR | |
341 | extern char *sys_errlist[]; | |
342 | #define strerror(i) sys_errlist[i] | |
343 | #endif | |
344 | ||
345 | #ifndef HAVE_STRCHR | |
346 | # define strchr index | |
347 | # define strrchr rindex | |
348 | #endif | |
349 | ||
c627d613 AT |
350 | #ifndef HAVE_ERRNO_DECL |
351 | extern int errno; | |
352 | #endif | |
353 | ||
354 | #ifndef HAVE_BCOPY | |
355 | #define bcopy(src,dest,n) memcpy(dest,src,n) | |
356 | #endif | |
357 | ||
358 | #ifndef HAVE_BZERO | |
359 | #define bzero(buf,n) memset(buf,0,n) | |
360 | #endif | |
361 | ||
cbbe4892 | 362 | #define SUPPORT_LINKS HAVE_READLINK |
dc5ddbcc | 363 | #define SUPPORT_HARD_LINKS HAVE_LINK |
c627d613 | 364 | |
8bf73749 AT |
365 | #ifndef HAVE_LCHOWN |
366 | #define lchown chown | |
367 | #endif | |
368 | ||
ac1eb754 | 369 | #define SIGNAL_CAST (RETSIGTYPE (*)()) |
720b47f2 AT |
370 | |
371 | #ifndef EWOULDBLOCK | |
372 | #define EWOULDBLOCK EAGAIN | |
373 | #endif | |
182dca5c | 374 | |
7b8356d0 AT |
375 | #ifndef STDIN_FILENO |
376 | #define STDIN_FILENO 0 | |
377 | #endif | |
378 | ||
379 | #ifndef STDOUT_FILENO | |
380 | #define STDOUT_FILENO 1 | |
381 | #endif | |
382 | ||
383 | #ifndef STDERR_FILENO | |
384 | #define STDERR_FILENO 2 | |
385 | #endif | |
386 | ||
387 | #ifndef S_IWUSR | |
388 | #define S_IWUSR 0200 | |
389 | #endif | |
390 | ||
1e9f155a AT |
391 | #ifndef S_ISBLK |
392 | #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK)) | |
393 | #endif | |
394 | ||
395 | #ifndef S_ISCHR | |
396 | #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR)) | |
397 | #endif | |
398 | ||
a0b65b18 AT |
399 | #ifndef S_ISSOCK |
400 | #ifdef _S_IFSOCK | |
401 | #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK)) | |
402 | #else | |
403 | #define S_ISSOCK(mode) (0) | |
404 | #endif | |
405 | #endif | |
406 | ||
407 | #ifndef S_ISFIFO | |
408 | #ifdef _S_IFIFO | |
409 | #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO)) | |
410 | #else | |
411 | #define S_ISFIFO(mode) (0) | |
412 | #endif | |
413 | #endif | |
414 | ||
1e9f155a AT |
415 | #ifndef S_ISDIR |
416 | #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR)) | |
417 | #endif | |
418 | ||
419 | #ifndef S_ISREG | |
420 | #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG)) | |
421 | #endif | |
422 | ||
a0b65b18 AT |
423 | |
424 | #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode)) | |
7bec6a5c | 425 |