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 18
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 (4*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>
146 #include <sys/mman.h>
153 #ifdef HAVE_SYS_SELECT_H
154 #include <sys/select.h>
157 #ifdef HAVE_SYS_MODE_H
158 /* apparently AIX needs this for S_ISLNK */
160 #include <sys/mode.h>
167 #include "lib/fnmatch.h"
170 #ifdef HAVE_GETOPT_LONG
173 #include "lib/getopt.h"
180 /* these are needed for the uid/gid mapping code */
185 #include <netinet/in.h>
186 #include <arpa/inet.h>
189 #include <sys/file.h>
192 #define S_IFLNK 0120000
196 #define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK)
202 #define uchar unsigned char
205 #if HAVE_UNSIGNED_CHAR
206 #define schar signed char
212 #if (SIZEOF_INT == 4)
214 #elif (SIZEOF_LONG == 4)
216 #elif (SIZEOF_SHORT == 4)
222 #define uint32 unsigned int32
226 #define OFF_T off64_t
227 #define STRUCT_STAT struct stat64
230 #define STRUCT_STAT struct stat
234 #define int64 off64_t
235 #elif (SIZEOF_LONG == 8)
237 #elif (SIZEOF_INT == 8)
240 #define int64 long long
247 #define MIN(a,b) ((a)<(b)?(a):(b))
251 #define MAX(a,b) ((a)>(b)?(a):(b))
254 /* the length of the md4 checksum */
255 #define MD4_SUM_LENGTH 16
256 #define SUM_LENGTH 16
259 #define MAXPATHLEN 1024
263 #define INADDR_NONE 0xffffffff
286 struct file_struct **files;
290 OFF_T offset; /* offset in file of this chunk */
291 int len; /* length of chunk of file */
292 int i; /* index of this chunk */
293 uint32 sum1; /* simple checksum */
294 char sum2[SUM_LENGTH]; /* checksum */
298 OFF_T flength; /* total file length */
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 */
308 OFF_T size, p_offset;
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 */
314 static inline int flist_up(struct file_list *flist, int i)
316 while (!flist->files[i]->basename) i++;
323 # define dirent direct
325 # include <sys/ndir.h>
328 # include <sys/dir.h>
335 #include "byteorder.h"
341 extern char *sys_errlist[];
342 #define strerror(i) sys_errlist[i]
346 # define strchr index
347 # define strrchr rindex
350 #ifndef HAVE_ERRNO_DECL
355 #define bcopy(src,dest,n) memcpy(dest,src,n)
359 #define bzero(buf,n) memset(buf,0,n)
362 #define SUPPORT_LINKS HAVE_READLINK
363 #define SUPPORT_HARD_LINKS HAVE_LINK
369 #define SIGNAL_CAST (RETSIGTYPE (*)())
372 #define EWOULDBLOCK EAGAIN
376 #define STDIN_FILENO 0
379 #ifndef STDOUT_FILENO
380 #define STDOUT_FILENO 1
383 #ifndef STDERR_FILENO
384 #define STDERR_FILENO 2
392 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
396 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
401 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
403 #define S_ISSOCK(mode) (0)
409 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
411 #define S_ISFIFO(mode) (0)
416 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
420 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
424 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))