2 Copyright (C) by Andrew Tridgell 1996, 2000
3 Copyright (C) Paul Mackerras 1996
4 Copyright (C) 2001 by Martin Pool <mbp@samba.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define BLOCK_SIZE 700
25 #define RSYNC_RSH_ENV "RSYNC_RSH"
27 #define RSYNC_NAME "rsync"
28 #define RSYNCD_CONF "/etc/rsyncd.conf"
30 #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
31 #define URL_PREFIX "rsync://"
33 #define BACKUP_SUFFIX "~"
35 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
36 incompatible with older versions :-( */
40 #define FLAG_DELETE (1<<0)
41 #define SAME_MODE (1<<1)
42 #define SAME_RDEV (1<<2)
43 #define SAME_UID (1<<3)
44 #define SAME_GID (1<<4)
45 #define SAME_DIR (1<<5)
46 #define SAME_NAME SAME_DIR
47 #define LONG_NAME (1<<6)
48 #define SAME_TIME (1<<7)
50 /* update this if you make incompatible changes */
51 #define PROTOCOL_VERSION 24
52 #define MIN_PROTOCOL_VERSION 15
53 #define MAX_PROTOCOL_VERSION 30
55 #define RSYNC_PORT 873
57 #define SPARSE_WRITE_SIZE (1024)
58 #define WRITE_SIZE (32*1024)
59 #define CHUNK_SIZE (32*1024)
60 #define MAX_MAP_SIZE (256*1024)
61 #define IO_BUFFER_SIZE (4092)
67 /* Log values. I *think* what these mean is: FLOG goes to the server
68 * logfile; FERROR and FINFO try to end up on the client, with
69 * different levels of filtering. */
70 enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 };
77 #define RSYNC_RSH "remsh"
79 #define RSYNC_RSH "rsh"
82 #include <sys/types.h>
90 #ifdef HAVE_SYS_PARAM_H
91 #include <sys/param.h>
98 #ifdef HAVE_SYS_SOCKET_H
99 #include <sys/socket.h>
110 #ifdef TIME_WITH_SYS_TIME
111 #include <sys/time.h>
114 #ifdef HAVE_SYS_TIME_H
115 #include <sys/time.h>
124 #ifdef HAVE_SYS_FCNTL_H
125 #include <sys/fcntl.h>
129 #include <sys/stat.h>
131 #ifdef HAVE_SYS_IOCTL_H
132 #include <sys/ioctl.h>
135 #ifdef HAVE_SYS_FILIO_H
136 #include <sys/filio.h>
140 #ifdef HAVE_SYS_WAIT_H
141 #include <sys/wait.h>
155 #ifdef HAVE_SYS_SELECT_H
156 #include <sys/select.h>
159 #ifdef HAVE_SYS_MODE_H
160 /* apparently AIX needs this for S_ISLNK */
162 #include <sys/mode.h>
169 #include "lib/fnmatch.h"
176 /* these are needed for the uid/gid mapping code */
181 #include <netinet/in.h>
182 #include <arpa/inet.h>
185 #include <sys/file.h>
190 # define dirent direct
192 # include <sys/ndir.h>
195 # include <sys/dir.h>
210 #define uchar unsigned char
213 #if HAVE_UNSIGNED_CHAR
214 #define schar signed char
220 #if (SIZEOF_INT == 4)
222 #elif (SIZEOF_LONG == 4)
224 #elif (SIZEOF_SHORT == 4)
227 /* I hope this works */
234 #define uint32 unsigned int32
238 #define OFF_T off64_t
239 #define STRUCT_STAT struct stat64
242 #define STRUCT_STAT struct stat
246 #define int64 off64_t
247 #elif (SIZEOF_LONG == 8)
249 #elif (SIZEOF_INT == 8)
252 #define int64 long long
265 #define MIN(a,b) ((a)<(b)?(a):(b))
269 #define MAX(a,b) ((a)>(b)?(a):(b))
272 #ifndef MAXHOSTNAMELEN
273 #define MAXHOSTNAMELEN 256
276 /* the length of the md4 checksum */
277 #define MD4_SUM_LENGTH 16
278 #define SUM_LENGTH 16
281 #define MAXPATHLEN 1024
285 #define INADDR_NONE 0xffffffff
306 #define ARENA_SIZE (32 * 1024)
312 struct string_area *next;
318 struct file_struct **files;
319 struct string_area *string_area;
323 OFF_T offset; /* offset in file of this chunk */
324 int len; /* length of chunk of file */
325 int i; /* index of this chunk */
326 uint32 sum1; /* simple checksum */
327 char sum2[SUM_LENGTH]; /* checksum */
331 OFF_T flength; /* total file length */
332 int count; /* how many chunks */
333 int remainder; /* flength % block_length */
334 int n; /* block_length */
335 struct sum_buf *sums; /* points to info for each chunk */
341 OFF_T file_size, p_offset, p_fd_offset;
344 struct exclude_struct {
355 int64 total_transferred_size;
362 int num_transferred_files;
366 /* we need this function because of the silly way in which duplicate
367 entries are handled in the file lists - we can't change this
368 without breaking existing versions */
369 static inline int flist_up(struct file_list *flist, int i)
371 while (!flist->files[i]->basename) i++;
375 #include "byteorder.h"
378 #include "lib/mdfour.h"
381 extern char *sys_errlist[];
382 #define strerror(i) sys_errlist[i]
386 # define strchr index
387 # define strrchr rindex
390 #ifndef HAVE_ERRNO_DECL
394 #define SUPPORT_LINKS HAVE_READLINK
395 #define SUPPORT_HARD_LINKS HAVE_LINK
401 #define SIGNAL_CAST (RETSIGTYPE (*)())
404 #define EWOULDBLOCK EAGAIN
408 #define STDIN_FILENO 0
411 #ifndef STDOUT_FILENO
412 #define STDOUT_FILENO 1
415 #ifndef STDERR_FILENO
416 #define STDERR_FILENO 2
424 #define _S_IFMT 0170000
428 #define _S_IFLNK 0120000
432 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
436 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
440 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
445 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
447 #define S_ISSOCK(mode) (0)
453 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
455 #define S_ISFIFO(mode) (0)
460 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
464 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
467 /* work out what fcntl flag to use for non-blocking */
469 # define NONBLOCK_FLAG O_NONBLOCK
471 # define NONBLOCK_FLAG O_NDELAY
473 # define NONBLOCK_FLAG FNDELAY
477 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))
480 #define ACCESSPERMS 0777
482 /* Initial mask on permissions given to temporary files. Mask off setuid
483 bits and group access because of potential race-condition security
484 holes, and mask other access because mode 707 is bizarre */
485 #define INITACCESSPERMS 0700
487 /* handler for null strings in printf format */
488 #define NS(s) ((s)?(s):"<NULL>")
490 /* use magic gcc attributes to catch format errors */
491 void rprintf(enum logcode , const char *, ...)
493 __attribute__ ((format (printf, 2, 3)))
497 /* This is just like rprintf, but it also tries to print some
498 * representation of the error code. Normally errcode = errno. */
499 void rsyserr(enum logcode, int, const char *, ...)
501 __attribute__ ((format (printf, 3, 4)))
505 #ifdef REPLACE_INET_NTOA
506 #define inet_ntoa rep_inet_ntoa
511 size_t strlcpy(char *d, const char *s, size_t bufsize);
515 size_t strlcat(char *d, const char *s, size_t bufsize);
519 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
522 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)