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 BACKUP_SUFFIX "~"
26 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
27 imcompatible with older versions :-( */
31 #define FLAG_DELETE (1<<0)
32 #define SAME_MODE (1<<1)
33 #define SAME_RDEV (1<<2)
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)
41 /* update this if you make incompatible changes */
42 #define PROTOCOL_VERSION 17
43 #define MIN_PROTOCOL_VERSION 11
44 #define MAX_PROTOCOL_VERSION 30
46 #define RSYNC_PORT 873
48 #define SPARSE_WRITE_SIZE (1024)
49 #define WRITE_SIZE (32*1024)
50 #define CHUNK_SIZE (32*1024)
51 #define MAX_MAP_SIZE (4*1024*1024)
53 #define BLOCKING_TIMEOUT 10
61 #define RSYNC_RSH "remsh"
63 #define RSYNC_RSH "rsh"
66 #include <sys/types.h>
72 #ifdef HAVE_SYS_PARAM_H
73 #include <sys/param.h>
80 #ifdef HAVE_SYS_SOCKET_H
81 #include <sys/socket.h>
96 #ifdef TIME_WITH_SYS_TIME
100 #ifdef HAVE_SYS_TIME_H
101 #include <sys/time.h>
110 #ifdef HAVE_SYS_FCNTL_H
111 #include <sys/fcntl.h>
115 #include <sys/stat.h>
117 #ifdef HAVE_SYS_IOCTL_H
118 #include <sys/ioctl.h>
121 #ifdef HAVE_SYS_FILIO_H
122 #include <sys/filio.h>
126 #ifdef HAVE_SYS_WAIT_H
127 #include <sys/wait.h>
138 #include <sys/mman.h>
145 #ifdef HAVE_SYS_SELECT_H
146 #include <sys/select.h>
149 #ifdef HAVE_SYS_MODE_H
150 /* apparently AIX needs this for S_ISLNK */
152 #include <sys/mode.h>
159 #include "lib/fnmatch.h"
162 #ifdef HAVE_GETOPT_LONG
165 #include "lib/getopt.h"
168 /* these are needed for the uid/gid mapping code */
175 #define S_IFLNK 0120000
179 #define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK)
183 #define uchar unsigned char
186 #if HAVE_UNSIGNED_CHAR
187 #define schar signed char
193 #if (SIZEOF_INT == 4)
195 #elif (SIZEOF_LONG == 4)
197 #elif (SIZEOF_SHORT == 4)
203 #define uint32 unsigned int32
207 #define OFF_T off64_t
208 #define STRUCT_STAT struct stat64
211 #define STRUCT_STAT struct stat
215 #define int64 off64_t
216 #elif (SIZEOF_LONG == 8)
218 #elif (SIZEOF_INT == 8)
221 #define int64 long long
228 #define MIN(a,b) ((a)<(b)?(a):(b))
232 #define MAX(a,b) ((a)>(b)?(a):(b))
235 /* the length of the md4 checksum */
236 #define MD4_SUM_LENGTH 16
237 #define SUM_LENGTH 16
240 #define MAXPATHLEN 1024
263 struct file_struct **files;
267 OFF_T offset; /* offset in file of this chunk */
268 int len; /* length of chunk of file */
269 int i; /* index of this chunk */
270 uint32 sum1; /* simple checksum */
271 char sum2[SUM_LENGTH]; /* checksum */
275 OFF_T flength; /* total file length */
276 int count; /* how many chunks */
277 int remainder; /* flength % block_length */
278 int n; /* block_length */
279 struct sum_buf *sums; /* points to info for each chunk */
285 OFF_T size, p_offset;
288 /* we need this function because of the silly way in which duplicate
289 entries are handled in the file lists - we can't change this
290 without breaking existing versions */
291 static inline int flist_up(struct file_list *flist, int i)
293 while (!flist->files[i]->basename) i++;
300 # define dirent direct
302 # include <sys/ndir.h>
305 # include <sys/dir.h>
312 #include "byteorder.h"
318 extern char *sys_errlist[];
319 #define strerror(i) sys_errlist[i]
323 # define strchr index
324 # define strrchr rindex
327 #ifndef HAVE_ERRNO_DECL
332 #define bcopy(src,dest,n) memcpy(dest,src,n)
336 #define bzero(buf,n) memset(buf,0,n)
339 #define SUPPORT_LINKS HAVE_READLINK
340 #define SUPPORT_HARD_LINKS HAVE_LINK
346 #define SIGNAL_CAST (RETSIGTYPE (*)())
349 #define EWOULDBLOCK EAGAIN
353 #define STDIN_FILENO 0
356 #ifndef STDOUT_FILENO
357 #define STDOUT_FILENO 1
360 #ifndef STDERR_FILENO
361 #define STDERR_FILENO 2
369 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
373 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
378 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
380 #define S_ISSOCK(mode) (0)
386 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
388 #define S_ISFIFO(mode) (0)
393 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
397 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
401 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))