2 Copyright (C) Andrew Tridgell 1996
3 Copyright (C) Paul Mackerras 1996
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.
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.
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.
20 #define BLOCK_SIZE 700
21 #define RSYNC_RSH_ENV "RSYNC_RSH"
23 #define RSYNC_NAME "rsync"
24 #define RSYNCD_CONF "/etc/rsyncd.conf"
26 #define BACKUP_SUFFIX "~"
28 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
29 imcompatible with older versions :-( */
33 #define FLAG_DELETE (1<<0)
34 #define SAME_MODE (1<<1)
35 #define SAME_RDEV (1<<2)
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)
43 /* update this if you make incompatible changes */
44 #define PROTOCOL_VERSION 19
45 #define MIN_PROTOCOL_VERSION 11
46 #define MAX_PROTOCOL_VERSION 30
48 #define RSYNC_PORT 873
50 #define SPARSE_WRITE_SIZE (1024)
51 #define WRITE_SIZE (32*1024)
52 #define CHUNK_SIZE (32*1024)
53 #define MAX_MAP_SIZE (1*1024*1024)
54 #define IO_BUFFER_SIZE (4096)
55 #define MAX_READ_BUFFER (1024*1024)
59 #define BLOCKING_TIMEOUT 10
68 #define RSYNC_RSH "remsh"
70 #define RSYNC_RSH "rsh"
73 #include <sys/types.h>
80 #ifdef HAVE_SYS_PARAM_H
81 #include <sys/param.h>
88 #ifdef HAVE_SYS_SOCKET_H
89 #include <sys/socket.h>
104 #ifdef TIME_WITH_SYS_TIME
105 #include <sys/time.h>
108 #ifdef HAVE_SYS_TIME_H
109 #include <sys/time.h>
118 #ifdef HAVE_SYS_FCNTL_H
119 #include <sys/fcntl.h>
123 #include <sys/stat.h>
125 #ifdef HAVE_SYS_IOCTL_H
126 #include <sys/ioctl.h>
129 #ifdef HAVE_SYS_FILIO_H
130 #include <sys/filio.h>
134 #ifdef HAVE_SYS_WAIT_H
135 #include <sys/wait.h>
145 #if defined(HAVE_MMAP) && defined(HAVE_MUNMAP)
146 #include <sys/mman.h>
154 #ifdef HAVE_SYS_SELECT_H
155 #include <sys/select.h>
158 #ifdef HAVE_SYS_MODE_H
159 /* apparently AIX needs this for S_ISLNK */
161 #include <sys/mode.h>
168 #include "lib/fnmatch.h"
171 #ifdef HAVE_GETOPT_LONG
174 #include "lib/getopt.h"
181 /* these are needed for the uid/gid mapping code */
186 #include <netinet/in.h>
187 #include <arpa/inet.h>
190 #include <sys/file.h>
193 #define S_IFLNK 0120000
197 #define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK)
203 #define uchar unsigned char
206 #if HAVE_UNSIGNED_CHAR
207 #define schar signed char
213 #if (SIZEOF_INT == 4)
215 #elif (SIZEOF_LONG == 4)
217 #elif (SIZEOF_SHORT == 4)
223 #define uint32 unsigned int32
227 #define OFF_T off64_t
228 #define STRUCT_STAT struct stat64
231 #define STRUCT_STAT struct stat
235 #define int64 off64_t
236 #elif (SIZEOF_LONG == 8)
238 #elif (SIZEOF_INT == 8)
241 #define int64 long long
248 #define MIN(a,b) ((a)<(b)?(a):(b))
252 #define MAX(a,b) ((a)>(b)?(a):(b))
255 /* the length of the md4 checksum */
256 #define MD4_SUM_LENGTH 16
257 #define SUM_LENGTH 16
260 #define MAXPATHLEN 1024
264 #define INADDR_NONE 0xffffffff
287 struct file_struct **files;
291 OFF_T offset; /* offset in file of this chunk */
292 int len; /* length of chunk of file */
293 int i; /* index of this chunk */
294 uint32 sum1; /* simple checksum */
295 char sum2[SUM_LENGTH]; /* checksum */
299 OFF_T flength; /* total file length */
300 int count; /* how many chunks */
301 int remainder; /* flength % block_length */
302 int n; /* block_length */
303 struct sum_buf *sums; /* points to info for each chunk */
309 OFF_T size, p_offset;
312 struct exclude_struct {
322 /* we need this function because of the silly way in which duplicate
323 entries are handled in the file lists - we can't change this
324 without breaking existing versions */
325 static inline int flist_up(struct file_list *flist, int i)
327 while (!flist->files[i]->basename) i++;
334 # define dirent direct
336 # include <sys/ndir.h>
339 # include <sys/dir.h>
346 #include "byteorder.h"
352 extern char *sys_errlist[];
353 #define strerror(i) sys_errlist[i]
357 # define strchr index
358 # define strrchr rindex
361 #ifndef HAVE_ERRNO_DECL
366 #define bcopy(src,dest,n) memcpy(dest,src,n)
370 #define bzero(buf,n) memset(buf,0,n)
373 #define SUPPORT_LINKS HAVE_READLINK
374 #define SUPPORT_HARD_LINKS HAVE_LINK
380 #define SIGNAL_CAST (RETSIGTYPE (*)())
383 #define EWOULDBLOCK EAGAIN
387 #define STDIN_FILENO 0
390 #ifndef STDOUT_FILENO
391 #define STDOUT_FILENO 1
394 #ifndef STDERR_FILENO
395 #define STDERR_FILENO 2
403 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
407 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
412 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
414 #define S_ISSOCK(mode) (0)
420 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
422 #define S_ISFIFO(mode) (0)
427 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
431 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
435 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))