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.
23 #define BLOCK_SIZE 700
24 #define RSYNC_RSH_ENV "RSYNC_RSH"
26 #define RSYNC_NAME "rsync"
27 #define RSYNCD_CONF "/etc/rsyncd.conf"
29 #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
30 #define URL_PREFIX "rsync://"
32 #define BACKUP_SUFFIX "~"
34 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
35 incompatible with older versions :-( */
39 #define FLAG_DELETE (1<<0)
40 #define SAME_MODE (1<<1)
41 #define SAME_RDEV (1<<2)
42 #define SAME_UID (1<<3)
43 #define SAME_GID (1<<4)
44 #define SAME_DIR (1<<5)
45 #define SAME_NAME SAME_DIR
46 #define LONG_NAME (1<<6)
47 #define SAME_TIME (1<<7)
49 /* update this if you make incompatible changes */
50 #define PROTOCOL_VERSION 20
51 #define MIN_PROTOCOL_VERSION 11
52 #define MAX_PROTOCOL_VERSION 30
54 #define RSYNC_PORT 873
56 #define SPARSE_WRITE_SIZE (1024)
57 #define WRITE_SIZE (32*1024)
58 #define CHUNK_SIZE (32*1024)
59 #define MAX_MAP_SIZE (256*1024)
60 #define IO_BUFFER_SIZE (4092)
61 #define MAX_READ_BUFFER (1024*1024)
75 #define RSYNC_RSH "remsh"
77 #define RSYNC_RSH "rsh"
80 #include <sys/types.h>
82 #ifdef HAVE_GETOPT_LONG
85 #include "lib/getopt.h"
94 #ifdef HAVE_SYS_PARAM_H
95 #include <sys/param.h>
102 #ifdef HAVE_SYS_SOCKET_H
103 #include <sys/socket.h>
114 #ifdef TIME_WITH_SYS_TIME
115 #include <sys/time.h>
118 #ifdef HAVE_SYS_TIME_H
119 #include <sys/time.h>
128 #ifdef HAVE_SYS_FCNTL_H
129 #include <sys/fcntl.h>
133 #include <sys/stat.h>
135 #ifdef HAVE_SYS_IOCTL_H
136 #include <sys/ioctl.h>
139 #ifdef HAVE_SYS_FILIO_H
140 #include <sys/filio.h>
144 #ifdef HAVE_SYS_WAIT_H
145 #include <sys/wait.h>
159 #ifdef HAVE_SYS_SELECT_H
160 #include <sys/select.h>
163 #ifdef HAVE_SYS_MODE_H
164 /* apparently AIX needs this for S_ISLNK */
166 #include <sys/mode.h>
173 #include "lib/fnmatch.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>
194 # define dirent direct
196 # include <sys/ndir.h>
199 # include <sys/dir.h>
214 #define uchar unsigned char
217 #if HAVE_UNSIGNED_CHAR
218 #define schar signed char
224 #if (SIZEOF_INT == 4)
226 #elif (SIZEOF_LONG == 4)
228 #elif (SIZEOF_SHORT == 4)
231 /* I hope this works */
238 #define uint32 unsigned int32
242 #define OFF_T off64_t
243 #define STRUCT_STAT struct stat64
246 #define STRUCT_STAT struct stat
250 #define int64 off64_t
251 #elif (SIZEOF_LONG == 8)
253 #elif (SIZEOF_INT == 8)
256 #define int64 long long
269 #define MIN(a,b) ((a)<(b)?(a):(b))
273 #define MAX(a,b) ((a)>(b)?(a):(b))
276 #ifndef MAXHOSTNAMELEN
277 #define MAXHOSTNAMELEN 256
280 /* the length of the md4 checksum */
281 #define MD4_SUM_LENGTH 16
282 #define SUM_LENGTH 16
285 #define MAXPATHLEN 1024
289 #define INADDR_NONE 0xffffffff
313 struct file_struct **files;
317 OFF_T offset; /* offset in file of this chunk */
318 int len; /* length of chunk of file */
319 int i; /* index of this chunk */
320 uint32 sum1; /* simple checksum */
321 char sum2[SUM_LENGTH]; /* checksum */
325 OFF_T flength; /* total file length */
326 int count; /* how many chunks */
327 int remainder; /* flength % block_length */
328 int n; /* block_length */
329 struct sum_buf *sums; /* points to info for each chunk */
335 OFF_T file_size, p_offset, p_fd_offset;
338 struct exclude_struct {
350 int64 total_transferred_size;
357 int num_transferred_files;
361 /* we need this function because of the silly way in which duplicate
362 entries are handled in the file lists - we can't change this
363 without breaking existing versions */
364 static inline int flist_up(struct file_list *flist, int i)
366 while (!flist->files[i]->basename) i++;
370 #include "byteorder.h"
373 #include "lib/mdfour.h"
376 extern char *sys_errlist[];
377 #define strerror(i) sys_errlist[i]
381 # define strchr index
382 # define strrchr rindex
385 #ifndef HAVE_ERRNO_DECL
389 #define SUPPORT_LINKS HAVE_READLINK
390 #define SUPPORT_HARD_LINKS HAVE_LINK
396 #define SIGNAL_CAST (RETSIGTYPE (*)())
399 #define EWOULDBLOCK EAGAIN
403 #define STDIN_FILENO 0
406 #ifndef STDOUT_FILENO
407 #define STDOUT_FILENO 1
410 #ifndef STDERR_FILENO
411 #define STDERR_FILENO 2
419 #define _S_IFMT 0170000
423 #define _S_IFLNK 0120000
427 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
431 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
435 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
440 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
442 #define S_ISSOCK(mode) (0)
448 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
450 #define S_ISFIFO(mode) (0)
455 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
459 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
463 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))
466 #define ACCESSPERMS 0777
468 /* Initial mask on permissions given to temporary files. Mask off setuid
469 bits and group access because of potential race-condition security
470 holes, and mask other access because mode 707 is bizarre */
471 #define INITACCESSPERMS 0700
473 /* handler for null strings in printf format */
474 #define NS(s) ((s)?(s):"<NULL>")
476 /* use magic gcc attributes to catch format errors */
477 void rprintf(int , const char *, ...)
479 __attribute__ ((format (printf, 2, 3)))
483 #ifdef REPLACE_INET_NTOA
484 #define inet_ntoa rep_inet_ntoa
489 size_t strlcpy(char *d, const char *s, size_t bufsize);
493 size_t strlcat(char *d, const char *s, size_t bufsize);
496 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)