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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 AT |
23 | #define RSYNC_NAME "rsync" |
24 | #define BACKUP_SUFFIX "~" | |
25 | ||
1b01b295 AT |
26 | /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is |
27 | imcompatible with older versions :-( */ | |
28 | #define CHAR_OFFSET 0 | |
29 | ||
30 | ||
4fe159a8 AT |
31 | #define FILE_VALID 1 |
32 | #define SAME_MODE (1<<1) | |
dc5ddbcc | 33 | #define SAME_RDEV (1<<2) |
4fe159a8 AT |
34 | #define SAME_UID (1<<3) |
35 | #define SAME_GID (1<<4) | |
36 | #define SAME_DIR (1<<5) | |
37 | #define SAME_NAME SAME_DIR | |
38 | #define LONG_NAME (1<<6) | |
39 | #define SAME_TIME (1<<7) | |
40 | ||
c627d613 | 41 | /* update this if you make incompatible changes */ |
f6c34742 | 42 | #define PROTOCOL_VERSION 15 |
3ec4dd97 | 43 | #define MIN_PROTOCOL_VERSION 11 |
7bec6a5c | 44 | #define MAX_PROTOCOL_VERSION 20 |
c627d613 | 45 | |
dc5ddbcc AT |
46 | #define SPARSE_WRITE_SIZE (4*1024) |
47 | #define WRITE_SIZE (32*1024) | |
34ccb63e | 48 | #define CHUNK_SIZE (32*1024) |
d9bea2dd | 49 | #define MAX_MAP_SIZE (4*1024*1024) |
c627d613 | 50 | |
58d433ab AT |
51 | #define BLOCKING_TIMEOUT 10 |
52 | ||
dc5ddbcc AT |
53 | #define FERROR stderr |
54 | #define FINFO (am_server?stderr:stdout) | |
7bec6a5c | 55 | |
c627d613 AT |
56 | #include "config.h" |
57 | ||
24d95c03 AT |
58 | #if HAVE_REMSH |
59 | #define RSYNC_RSH "remsh" | |
60 | #else | |
61 | #define RSYNC_RSH "rsh" | |
62 | #endif | |
63 | ||
c627d613 AT |
64 | #include <sys/types.h> |
65 | #ifdef HAVE_UNISTD_H | |
66 | #include <unistd.h> | |
67 | #endif | |
68 | #include <stdio.h> | |
69 | ||
70 | #ifdef HAVE_SYS_PARAM_H | |
71 | #include <sys/param.h> | |
72 | #endif | |
73 | ||
d7b305fd AT |
74 | #ifdef HAVE_STDLIB_H |
75 | #include <stdlib.h> | |
76 | #endif | |
77 | ||
fdd71e17 AT |
78 | #ifdef HAVE_SYS_SOCKET_H |
79 | #include <sys/socket.h> | |
80 | #endif | |
81 | ||
d7b305fd AT |
82 | #ifdef HAVE_STRING_H |
83 | #include <string.h> | |
c627d613 AT |
84 | #endif |
85 | ||
86 | #ifdef HAVE_COMPAT_H | |
87 | #include <compat.h> | |
88 | #endif | |
89 | ||
90 | #ifdef HAVE_MALLOC_H | |
91 | #include <malloc.h> | |
92 | #endif | |
93 | ||
94 | #ifdef TIME_WITH_SYS_TIME | |
95 | #include <sys/time.h> | |
96 | #include <time.h> | |
97 | #else | |
98 | #ifdef HAVE_SYS_TIME_H | |
99 | #include <sys/time.h> | |
100 | #else | |
101 | #include <time.h> | |
102 | #endif | |
103 | #endif | |
104 | ||
105 | #ifdef HAVE_FCNTL_H | |
106 | #include <fcntl.h> | |
107 | #else | |
108 | #ifdef HAVE_SYS_FCNTL_H | |
109 | #include <sys/fcntl.h> | |
110 | #endif | |
111 | #endif | |
112 | ||
113 | #include <sys/stat.h> | |
114 | ||
94481d91 AT |
115 | #ifdef HAVE_SYS_IOCTL_H |
116 | #include <sys/ioctl.h> | |
117 | #endif | |
118 | ||
119 | #ifdef HAVE_SYS_FILIO_H | |
120 | #include <sys/filio.h> | |
121 | #endif | |
122 | ||
c627d613 AT |
123 | #include <signal.h> |
124 | #ifdef HAVE_SYS_WAIT_H | |
125 | #include <sys/wait.h> | |
126 | #endif | |
127 | #ifdef HAVE_CTYPE_H | |
128 | #include <ctype.h> | |
129 | #endif | |
130 | #ifdef HAVE_GRP_H | |
131 | #include <grp.h> | |
132 | #endif | |
133 | #include <errno.h> | |
134 | ||
7bec6a5c | 135 | #ifdef HAVE_MMAP |
c627d613 | 136 | #include <sys/mman.h> |
7bec6a5c AT |
137 | #endif |
138 | ||
c627d613 AT |
139 | #ifdef HAVE_UTIME_H |
140 | #include <utime.h> | |
141 | #endif | |
142 | ||
8bf73749 AT |
143 | #ifdef HAVE_SYS_SELECT_H |
144 | #include <sys/select.h> | |
145 | #endif | |
146 | ||
773f2bd4 AT |
147 | #ifdef HAVE_SYS_MODE_H |
148 | /* apparently AIX needs this for S_ISLNK */ | |
05a6556d | 149 | #ifndef S_ISLNK |
773f2bd4 AT |
150 | #include <sys/mode.h> |
151 | #endif | |
05a6556d | 152 | #endif |
773f2bd4 | 153 | |
c627d613 AT |
154 | #ifdef HAVE_FNMATCH |
155 | #include <fnmatch.h> | |
156 | #else | |
157 | #include "lib/fnmatch.h" | |
158 | #endif | |
159 | ||
160 | #ifdef HAVE_GETOPT_LONG | |
161 | #include <getopt.h> | |
162 | #else | |
163 | #include "lib/getopt.h" | |
164 | #endif | |
165 | ||
f6c34742 AT |
166 | /* these are needed for the uid/gid mapping code */ |
167 | #include <pwd.h> | |
168 | #include <grp.h> | |
169 | ||
cbbe4892 AT |
170 | #ifndef S_IFLNK |
171 | #define S_IFLNK 0120000 | |
172 | #endif | |
c627d613 AT |
173 | |
174 | #ifndef S_ISLNK | |
175 | #define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK) | |
176 | #endif | |
177 | ||
178 | #ifndef uchar | |
179 | #define uchar unsigned char | |
180 | #endif | |
181 | ||
182 | #ifndef int32 | |
183 | #if (SIZEOF_INT == 4) | |
184 | #define int32 int | |
185 | #elif (SIZEOF_LONG == 4) | |
186 | #define int32 long | |
187 | #elif (SIZEOF_SHORT == 4) | |
188 | #define int32 short | |
189 | #endif | |
190 | #endif | |
191 | ||
192 | #ifndef uint32 | |
193 | #define uint32 unsigned int32 | |
194 | #endif | |
195 | ||
196 | ||
197 | #ifndef MIN | |
198 | #define MIN(a,b) ((a)<(b)?(a):(b)) | |
199 | #endif | |
200 | ||
201 | #ifndef MAX | |
202 | #define MAX(a,b) ((a)>(b)?(a):(b)) | |
203 | #endif | |
204 | ||
205 | /* the length of the md4 checksum */ | |
ebb0a6f6 | 206 | #define MD4_SUM_LENGTH 16 |
c627d613 AT |
207 | #define SUM_LENGTH 16 |
208 | ||
209 | #ifndef MAXPATHLEN | |
210 | #define MAXPATHLEN 1024 | |
211 | #endif | |
212 | ||
213 | struct file_struct { | |
3ec4dd97 AT |
214 | time_t modtime; |
215 | off_t length; | |
216 | mode_t mode; | |
217 | ino_t inode; | |
218 | dev_t dev; | |
219 | dev_t rdev; | |
220 | uid_t uid; | |
221 | gid_t gid; | |
222 | char *basename; | |
223 | char *dirname; | |
224 | char *basedir; | |
225 | char *link; | |
2d0bb8eb | 226 | char *sum; |
c627d613 AT |
227 | }; |
228 | ||
229 | struct file_list { | |
230 | int count; | |
231 | int malloced; | |
3ec4dd97 | 232 | struct file_struct **files; |
c627d613 AT |
233 | }; |
234 | ||
235 | struct sum_buf { | |
236 | off_t offset; /* offset in file of this chunk */ | |
237 | int len; /* length of chunk of file */ | |
238 | int i; /* index of this chunk */ | |
239 | uint32 sum1; /* simple checksum */ | |
ebb0a6f6 | 240 | char sum2[SUM_LENGTH]; /* checksum */ |
c627d613 AT |
241 | }; |
242 | ||
243 | struct sum_struct { | |
244 | off_t flength; /* total file length */ | |
245 | int count; /* how many chunks */ | |
246 | int remainder; /* flength % block_length */ | |
247 | int n; /* block_length */ | |
248 | struct sum_buf *sums; /* points to info for each chunk */ | |
249 | }; | |
250 | ||
c6e7fcb4 AT |
251 | struct map_struct { |
252 | char *map,*p; | |
253 | int fd,size,p_size,p_offset,p_len; | |
254 | }; | |
c627d613 | 255 | |
3b3a2fbc AT |
256 | /* we need this function because of the silly way in which duplicate |
257 | entries are handled in the file lists - we can't change this | |
258 | without breaking existing versions */ | |
259 | static int flist_up(struct file_list *flist, int i) | |
260 | { | |
3ec4dd97 | 261 | while (!flist->files[i]->basename) i++; |
3b3a2fbc AT |
262 | return i; |
263 | } | |
264 | ||
265 | ||
c627d613 AT |
266 | #include "byteorder.h" |
267 | #include "version.h" | |
268 | #include "proto.h" | |
269 | #include "md4.h" | |
270 | ||
271 | #if !HAVE_STRERROR | |
272 | extern char *sys_errlist[]; | |
273 | #define strerror(i) sys_errlist[i] | |
274 | #endif | |
275 | ||
276 | #ifndef HAVE_STRCHR | |
277 | # define strchr index | |
278 | # define strrchr rindex | |
279 | #endif | |
280 | ||
281 | #if HAVE_DIRENT_H | |
282 | # include <dirent.h> | |
283 | #else | |
284 | # define dirent direct | |
285 | # if HAVE_SYS_NDIR_H | |
286 | # include <sys/ndir.h> | |
287 | # endif | |
288 | # if HAVE_SYS_DIR_H | |
289 | # include <sys/dir.h> | |
290 | # endif | |
291 | # if HAVE_NDIR_H | |
292 | # include <ndir.h> | |
293 | # endif | |
294 | #endif | |
295 | ||
296 | #ifndef HAVE_ERRNO_DECL | |
297 | extern int errno; | |
298 | #endif | |
299 | ||
300 | #ifndef HAVE_BCOPY | |
301 | #define bcopy(src,dest,n) memcpy(dest,src,n) | |
302 | #endif | |
303 | ||
304 | #ifndef HAVE_BZERO | |
305 | #define bzero(buf,n) memset(buf,0,n) | |
306 | #endif | |
307 | ||
cbbe4892 | 308 | #define SUPPORT_LINKS HAVE_READLINK |
dc5ddbcc | 309 | #define SUPPORT_HARD_LINKS HAVE_LINK |
c627d613 | 310 | |
8bf73749 AT |
311 | #ifndef HAVE_LCHOWN |
312 | #define lchown chown | |
313 | #endif | |
314 | ||
ac1eb754 | 315 | #define SIGNAL_CAST (RETSIGTYPE (*)()) |
720b47f2 AT |
316 | |
317 | #ifndef EWOULDBLOCK | |
318 | #define EWOULDBLOCK EAGAIN | |
319 | #endif | |
182dca5c | 320 | |
7b8356d0 AT |
321 | #ifndef STDIN_FILENO |
322 | #define STDIN_FILENO 0 | |
323 | #endif | |
324 | ||
325 | #ifndef STDOUT_FILENO | |
326 | #define STDOUT_FILENO 1 | |
327 | #endif | |
328 | ||
329 | #ifndef STDERR_FILENO | |
330 | #define STDERR_FILENO 2 | |
331 | #endif | |
332 | ||
333 | #ifndef S_IWUSR | |
334 | #define S_IWUSR 0200 | |
335 | #endif | |
336 | ||
1e9f155a AT |
337 | #ifndef S_ISBLK |
338 | #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK)) | |
339 | #endif | |
340 | ||
341 | #ifndef S_ISCHR | |
342 | #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR)) | |
343 | #endif | |
344 | ||
345 | #ifndef S_ISDIR | |
346 | #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR)) | |
347 | #endif | |
348 | ||
349 | #ifndef S_ISREG | |
350 | #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG)) | |
351 | #endif | |
352 | ||
182dca5c | 353 | #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode)) |
7bec6a5c | 354 |